338results about How to "Improve site adaptability" patented technology

The invention relates to an automatic brick paving machine. The automatic brick paving machine includes a walking track and a dolly body arranged on the walking track, and the dolly body is composed of a transmission mechanism, a brick separating and conveying mechanism, a roller brushing mechanism, a brick clamping and paving mechanism, a compacting mechanism and a control module. The transmission mechanism powers the track, the brick separating and conveying mechanism, the roller brushing mechanism, the brick clamping and paving mechanism, the compacting mechanism and the like. The brick separating and conveying mechanism separates vertically-stacked bricks and forward conveys the bricks. The roller brushing mechanism uniformly smears a cement mortar onto the backside of each of the bricks in the conveying process of the bricks. The brick clamping and paving mechanism clamps the bricks and steadily paves the bricks on the ground. The compacting mechanism flattens and compacts the bricks paved on the ground. The automatic brick paving machine can substitute manual operations, and is suitable for the paving operation of large laces comprising squares and the like.

The invention refers to an intelligent and high-efficiency brick paving machine comprising a walking track and a trolley body arranged on the walking track; the trolley body is composed of a transmission mechanism, a three-dimensional brick-transmission mechanism, a roller brushing mechanism, a cam locking mechanism, a hexagonal brick placing mechanism, a brick compaction mechanism and a control module. The transmission mechanism is used for transmitting power to the track, the three-dimensional brick-transmission mechanism, the cam locking mechanism, the hexagonal brick placing mechanism and the like. The three-dimensional brick-transmission mechanism is used for separating the vertically-piled bricks and delivering the bricks forwards one by one. During transmission of the bricks, the roller brushing mechanism is used for smearing cement paste to backs of the bricks uniformly. The hexagonal brick placing mechanism is used for continuously and exactly putting the bricks on the floor from an upper place. The bricks are evenly pressed and compacted by the compaction mechanism. The control module is used for controlling the operation of the whole machine. The brick paving job can be finished by the intelligent and high-efficiency brick paving machine instead of human beings, time and effort are saved, and meanwhile, the brick paving quality is ensured.

The invention provides an ultralow-pressure well leakage plugging method and belongs to the technical field of oil field well leakage plugging. According to the method, after a certain perforation well section is selected as an inlet of cement slurry, a squeezing packer is arranged in a casing pipe of the upper portion of the perforation well section in a setting mode, and a drillable one-way check valve is arranged under the squeezing packer; a squeezing pipe column is fed, an insertion pipe at the lower end of the squeezing pipe column is inserted into a socket of the packer so that the pipe column and the squeezing packer can be sealed, and the situation that due to the fact that plugging agents return to the portion above the squeezing packer in the plugging construction process, engineering accidents are caused can be prevented; gel spacer fluid is pumped into the squeezing pipe column, then the cement slurry is pumped, finally the gel spacer fluid is pumped, positive pressure squeezing is carried out, and therefore the gel spacer fluid and the cement slurry enter an oil-water layer or a channeling groove part to be sealed through the perforation well section serving as the inlet; pumping is stopped, the insertion pipe is pulled out, the one-way check valve is automatically closed, flow return is stopped, the pipe column is lifted to finish the operation of plugging the oil-water layer, kill fluid is poured, and a well is closed to wait on cement setting. The method has the advantages that site adaptation and leakage plugging strength are high, and leakage of the ultralow-pressure well can be plugged.

The invention discloses an intelligent ball picking system based on visual identification and multi-sensor data fusion. A multi-sensor data fusion method is adopted. A first infrared sensor (1-8), a second infrared sensor (1-21), a third infrared sensor (1-22) and a fourth infrared sensor (1-9) are four sensors at fixed positions and can detect barriers at the top corners of an intelligent ball picking device (1). A fifth infrared sensor (1-11) controlled by a fifth steering engine (1-10), a sixth infrared sensor (1-18) controlled by a sixth steering engine (1-17) and a seventh infrared sensor (1-20) controlled by a seventh steering engine (1-19) form three sets of sensors which can swing at angles, the sensors transmit collected data to a control system in real time and detect the barriers in front, on the left side and on the right side after the data are processed by the control system, and the barrier avoidance function is achieved. An infrared counting sensor (1-5) transmits collected information of the number of ball bodies to the control system for processing, and the counting function is achieved.

The invention relates to a new welling drilling method for efficient rock breaking by means of heating power jet flow, and a complete set of construction scheme. According to the system composition, a continuous coil tubing unit, an electric measuring instrument truck, a cable, an air injection pipeline, a fuel injection pipeline, a fuel reaction cavity, a heating power jet flow nozzle, a ground pump set and the like are included. According to the technology, on the basis of the principle that the continuous heated surfaces of rocks crack until the rocks are decomposed in a splitting mode, the heating power jet flow acts on the rocks on the deep well hard formation, the non-contact efficient rock breaking is achieved under heat transfer and impact force of high-temperature and high-pressure fluid media, and the energy utilization rate of the well bottom is improved; the technological process is simple, the continuous oil tube well drilling technology is combined, a drill bit does not need to be replaced, the time of the tripping operation is shortened, abrasion to a tubular column is reduced, and the cost of the drilling operation is reduced. According to the new welling drilling method for efficient rock breaking by means of heating power jet flow, the heating power jet flow technology is creatively guided into the continuous oil tube well drilling, popularization and application of the continuous tube technology are facilitated, and oil and gas resources are efficiently exploited.

The invention discloses a method for electrified spanning construction of a high-voltage power transmission and transformation line. The method comprises the following steps of: (1) preparation for construction: computing the position, the height and the width of a spanning frame; (2) building of the spanning frame: according to the designed spanning frame model, installing an auxiliary lifting pole for suspending pulleys on towers at two sides of a span of a newly-built line, suspending double-layer pulleys on the lifting pole, penetrating the double-layer pulleys by Deenyma ropes to form ropeways which are regarded as carrying ropes of a safety net and suspending the safety net under the carrying ropes through suspending belts and small pulleys; (3) extension of insulation guide ropes; (4) extension of conducting wires and ground wires: extending the conducting wires, the ground wires and installation accessories above the safety net by utilizing the insulation guide ropes; and (5) dismantling of the built spanning frame after the electrified spanning construction is finished. By applying the method disclosed by the invention, the advantages of cost saving in renting the spanning frame, high construction speed, good insulation strength, high reliability, high practicability, high superiority and better social and economic benefits are achieved.

The invention discloses an underground fluid laminated sampling device based on a U-shaped pipe technology. The underground fluid laminated sampling device comprises an underground fluid sample injection subsystem, a packer subsystem, a chaining subsystem, a ground sampling subsystem and a soil gas sampling subsystem, wherein the underground fluid sample injection subsystem comprises a driving pipe, a sample discharging pipe, a fluid storage container, a liquid phase check valve and a filtering element; the soil gas sampling subsystem comprises a gas phase check valve arranged at a set position; the gas phase check valve is connected with a manual pump through a pneumatic ball valve and a gas sampling bag. The invention further discloses an underground fluid laminated sampling method based on the U-shaped pipe technology. The underground fluid laminated sampling device is novel in structural design; multiple technical difficulties are overcome; compared with a product of the original technology, the underground fluid laminated sampling device has the advantages that the working performance, the application range and the system stability are greatly improved, has higher competitiveness and industrial leading superiority, can be widely applied, is good in engineering demand, and has good application prospect and commercial value.

The invention belongs to the technical field of computer vision measurement and relates to a method for three-dimensional data registration based on flexible feature points. According to the method, a ladder type measurement system is adopted for three-dimensional data measurement of a large part having a free-form surface; by utilization of control point information in public view field areas of a global control system and a local measurement system, control points are matched, and a transfer matrix is obtained; by utilization of the transfer matrix, three-dimensional point cloud data measured by the local measurement system is unified into the global control system, finally three-dimensional reconstruction is performed on data of the global control system, to achieve three-dimensional data registration of the large part. According to the method, by utilization of the projection flexible control points, the problems of complex control point layout and measurement blind areas in the process of measuring a conventional large part are solved, the measurement positioning is adjusted in real time according to surface features of the measured part, and site adaptability of the measurement system and data registration precision and measurement stability are improved.

The invention discloses a gas pushing type underground fluid stratified sampling device. The end port of a simple packer system is inserted into a pipe of a shaft system to perform embedding and fixedly riveted with the pipe through screws to form an integral cylindrical structure. The integral cylindrical structure is buried in the stratum through drilled holes, and a guide pipe in the integral cylindrical structure penetrates through small holes preserved in simple packers to be connected with a U-shaped pipe underground fluid sample feeding system. The guide pipe penetrates through the small hole preserved in a first simple packer to be connected with a gas phase filter and a gas phase check valve of a soil gas sampling system and penetrates through the first simple packer to be connected with a needle valve on the ground and a fluid sampling container. A gas pushing type ground fluid sampling system penetrates through the small hole preserved in the first simple packer to be connected with the U-shaped underground fluid sample feeding system. The gas pushing type underground fluid stratified sampling device is ingenious and novel in structure, low in cost, excellent in durability, strong in field adaptability, wide in application fields, strong in project demands and good in application prospect and commercial value.

The invention discloses an automatic measuring device for the circumference of a spiral submerged-arc welding pipe, and relates to the technical field of the measuring device for the length of a pipe body. The automatic measuring device is characterized in that the left side and the right side of an upper fixed beam and a lower fixed beam of a fixed frame are respectively provided with a linear guide rail; an upper CCD (Charge Coupled Device) laser micrometer is fixed between the two linear guide rails of the upper fixed beam by the fixed bracket or a telescopic fixed bracket; a lower CCD laser micrometer is fixed between the two linear guide rails of the lower fixed beam by the fixed bracket or the telescopic fixed bracket; and the two ends of a ball screw are respectively matched with the linear guide rails in a sliding manner by sliding blocks. The automatic measuring device disclosed by the invention has the advantages that since the four CCD laser micrometers are used and the distance among the CCD laser micrometers is adjustable, real-time online automatic measurement of the circumferences of the welding pipes with different welding pipes can be realized, and the detection leaking rate is avoided; due to the design of automatic measurement and redundancy algorithm, the accuracy of the measured value is improved and the measuring accuracy can reach 0.01mm.

The invention relates to the technical field of aerial survey and especially relates to a system and a method for measuring line sag height based on an unmanned aerial vehicle. The system for measuring line sag height based on an unmanned aerial vehicle comprises a rotor unmanned aerial vehicle, a digital camera, a ground control station, a microwave emitter, a microwave reception antenna, a data line and a computer measurement system. The rotor unmanned aerial vehicle is provided with the digital camera and the microwave emitter. The digital camera is connected to the microwave emitter by a flying control panel of the rotor unmanned aerial vehicle. The computer measurement system is installed in the ground control station. A computer serial interface of the ground control station is connected to the microwave reception antenna by the data line. The rotor unmanned aerial vehicle does not need a special-purpose rising-landing runway, has strong place adaptability and is especially suitable for height measurement on engineering in an area having complex landform conditions. The system saves time and labor and has high measurement efficiency. Through use of the rotor unmanned aerial vehicle, safety is high and the damage on people is avoided.

The invention relates to a branch control phase inversion heat exchange system and a branch control phase inversion heat exchange method based on a vapor-liquid heat exchanger. The system comprises a liquid storage tank (20), a heat source heat exchanger (3), a cold source heat exchanger (15) and a vapor-liquid heat exchanger (9); an upper collection tank of the heat source heat exchanger (3) is communicated with the vapor-liquid heat exchanger (9) through a heat exchanger inlet steam pipe (8); a vapor-liquid heat exchanger outlet steam pipe (10) which is arranged on the vapor-liquid heat exchanger (9) is divided into two branches which are communicated with an upper collection tank and a lower collection tank of the cold source heat exchanger (15); the lower collection tank of the cold source heat exchanger (15) is communicated with the upper part of the liquid storage tank (20) through a cold source heat exchanger liquid outlet pipe (17); the bottom of the liquid storage tank (20) is communicated with the vapor-liquid heat exchanger (9) through a heat exchanger inlet condensation liquid pipe (11); and the vapor-liquid heat exchanger (9) is communicated with a lower collection tank of the heat source heat exchanger (3) through a heat exchanger outlet condensation liquid pipe (6). The branch control phase inversion heat exchange system can solve the phenomena of overcooling and overheating and improve heat exchanging efficiency.

The invention discloses a multifunctional mine roadway milling and digging machine, which comprises a multifunctional work mechanism, a transportation mechanism, a walking device, a hydraulic system and an electric system, wherein the multifunctional work mechanism consists of a milling and digging mechanism and a digging mechanism. The digging mechanism and the digging mechanism are integrated to form the multifunctional work mechanism; the milling and digging mechanism firstly carries out large-range milking restoration, planing and restoration on a blasting dug irregular roadway; then, a large amount of slag and stones are dug through a grab excavator; next, materials are conveyed to the tail part through the self conveying mechanism. The multifunctional mine roadway milling and digging machine adopting the technical scheme has the advantages that the defects in the prior art are overcome, meanwhile, the functions of roadway milling restoration, bottom planing, digging and conveyance are realized; the roadway mining restoration, the bottom planing, the digging and the loading continuous operation can be realized, the operation is simple and convenient, the cost is reduced, the applicability to various complicated work conditions is high, the field applicability is effectively improved, and the roadway restoration efficiency is improved.

The invention provides a method for preparing a stone blocking dam by using waste and old rubber, which comprises the following steps of: determining construction conditions of a main body structure of the stone blocking dam, constructing a support wall and an end blocking wall of the stone blocking dam, pre-embedding fixed connectors on the walls, pre-embedding a stand column at the top of the support wall and embedding an anchor rod for fixing an anchor rope at a position of a toe; braiding tyre cages by using waste and old tyres, waste and old triangular belts and waste and old wire ropes, constructing a tyre cage energy-dissipating bank through the combination and connection of the tyre cages of different specifications, filling rock blocks, sandy soil or rubber soil into the hollow chamber of the tyre cages, fixing the tyre cage close to one side of the support wall of the stone blocking dam by using the fixed connector, and bolting other tyre cages by using the waste and old triangular belts; sleeving enough waste and old tyres on the stand column and fixing the support ropes between the adjacent stand columns by the waste and old tyres on the top; laying a layer of waste and old tyre net on the surface of the tyre cage energy-dissipating bank, wherein the support ropes between the stand columns form the upper boundary of the waste and old tyre net, the anchor rods at the position of the toes form the lower boundary of the waste and old tyre net, and the gaps between the waste and old tyre net and the tyre cage energy-dissipating bank can be filled by the waste and old tyres and waste and old rubber fragments; and constructing the dam body consisting of the support wall, the tyre cage energy-dissipating bank and the waste and old tyre net in segments step by step and constructing an end part backstop above the end part blocking wall. The method can greatly improve the rolling stone blockage performance of the stone blocking dam.

The invention provides an obstacle-crossing robot for transmission line operation and an obstacle-crossing method thereof. The robot comprises a body, a front swinging arm, a rear swinging arm, a front roller wheel, a rear roller wheel, a front arm slider, a rear arm slider and an auxiliary arm. The method comprises the following steps: when a sense director of the robot detects that obstacles exist, the robot first loosens conductors in wheel-type hands of the two front arms, and then swings the two arms outward, moves round the obstacles by 180 degrees of rotation and grips the conductors again, at the moment, the robot crosses the obstacles. The two rear arms adopt the same method to cross the obstacles. After crossing the obstacles, the robot reverses the four arms to prepare for the next obstacle-crossing. The robot is suitable for the signal conductor and bundled conductor, and can complete multiple operations. The method features clear and simple steps. All the driving motors are all in sequential working state, without multi-motor linkage. The robot is characterized by considerably easy control system manufacturing and programming, thus having good adaptability to the field.

The invention relates to a construction device of a pile peripheral cemented soil cast-in-place stiffness core pile. The construction device is mainly composed of an inner immersed tube, an outer immersed tube, a precast pile toe and high-pressure guniting tubes. An outer immersed tube limiting groove, an inner immersed tube limiting groove, supporting baffle embedded grooves and torsion-resistance limiting steel plates which are used for positioning an upper portion immersed tube device are arranged on the upper surface of the precast pile toe. Hole channels which allow the high-pressure guniting tubes to pass are pre-formed inside the precast pile toe. The high-pressure guniting tubes which are provided with spraying heads at the bottom ends are evenly distributed on the outer side wall of the inner immersed tube in the circumferential direction. The two sides of each high-pressure guniting tube are respectively provided with a vertical through long supporting baffle. Stiffening ribbed plates are arranged on the outer sides of the supporting baffles in a uniformly-spaced mode. By the adoption of the construction device, the stiffness core pile can be formed inside the immersed tubes, cemented soil is formed at the periphery of the pile, the stress performance of pile body materials is brought into full play as much as possible, in the rotation sinking process of the device, high-pressure guniting is carried out on a lower portion soil body, end portion resistance and side frictional resistance can be reduced, and the sinking speed of the immersed tubes is improved. The invention further discloses a pile-forming construction method of the construction device.

The invention discloses a biomass micro-positive-pressure pneumatic transmission system which comprises a feeding system, a fan, a conveying pipeline system, a discharging system, a tail gas treatment system and an automatic control system, wherein the feeding system comprises a quantitative feeding device, a collecting device, a positive-pressure air sealing device, an accelerator, an air guide pipe and a return air treatment pipeline; the conveying pipeline system comprises a straight pipeline, a connecting flange and a plurality of quick-operating doors distributed on the pipeline as well as a transparent observation window. The biomass micro-positive-pressure pneumatic transmission system has the advantages that smooth feeding with higher concentration ratio can be achieved, the power consumption is low, the service life of the air sealing device is prolonged, the applicability and the pipeline durability of the conveying system are improved, the convenience is provided for pipeline smoothening and repairing, the environmental pollution can be avoided, and the automation level is high.

The invention relates to a circling measurement device and method for the volume of a large stacked material. According to the device, a vehicle-mounted laser scanner, an inertial measurement unit and a wheel encoder are adopted and matched with one another to synchronously acquire material stack contour information and measure posture and position information of a trolley. The vehicle-mounted laser scanner, the inertial measurement unit and the wheel encoder are installed on the remotely controlled or autonomously navigated trolley, the laser scanner continuously scans the material stack contour information during movement, full-view measurement is performed through circling of a material stack, and synchronous information of multiple groups of sensors forms three-dimensional contour information of the material stack and the posture and position information of the trolley. The acquired material stack contour information and the posture and position information of the trolley is transmitted to a PC (personal computer) to be processed, point cloud data of the material stack contour are obtained through coordinate transformation, and the appearance and the volume of the material stack are reconstructed with an integration reconstruction method, so that the volume of the large stacked material is measured. Besides, a manager can make corresponding decisions timely after receiving the measured data, so that the device and the method provide technical support for management of the large stacked material by an enterprise.

The invention discloses an integrated mining excavation and loading machine. The integrated mining excavation and loading machine has excavation and conveying functions and is high in excavation efficiency and good in field adaptability. The integrated mining excavation and loading machine comprises a left traveling mechanism, a right traveling mechanism, an excavation mechanism, a power device and an operation device, wherein the left traveling mechanism and the right traveling mechanism are arranged on two sides of the machine; a rack is arranged on the left traveling mechanism and the right traveling mechanism; the excavation mechanism is arranged in front of the rack; a conveying mechanism is arranged on the rack between the left traveling mechanism and the right traveling mechanism, and comprises a front conveying mechanism and a rear conveying mechanism; the front conveying mechanism is arranged at the front end of the rack; the rear conveying mechanism is arranged at the rear end of the rack and can horizontally swing along the axis of the conveying mechanism; a funnel is arranged between the end of the rear conveying mechanism and the tail of the front conveying mechanism.

The invention provides an air-extrusion type oil transporting and refueling bag which comprises an outer bag, an inner bag, an oil guide pipe, flanges, an oil inlet and outlet valve and a charging valve, the outer bag is of a cylindrical structure, the inner bag is of a bag-shaped structure and arranged inside the outer bag, the opening end direction of the inner bag is as same as that of the outer bag, two ends of the inner bag are connected with two ends of the outer bag through the flanges, a closed cavity is formed between the inner bag and the outer bag, both the oil inlet and outlet valve and the charging valve are arranged on the flange at the opening end, the oil inlet and outlet valve is communicated with the inner bag, the charging valve is communicated with the closed cavity, the oil guide pipe is arranged inside the inner bag, and one end of the oil guide pipe is connected with the oil inlet and outlet valve through a rope. The air-extrusion type oil transporting and refueling bag is convenient to use and high in field adaptability.

The invention provides a laser positioning initialization method. The laser positioning initialization method comprises the steps: splicing frame point cloud information of a plurality of point cloudsequences is obtained, and sampling is conducted to obtain a plurality of sampled point clouds; a point cloud distribution center is determined, main component analysis is conducted accordingly, a main component analysis characteristic matrix is generated, and a characteristic coordinate system is constructed accordingly; according to the point cloud distribution center and the characteristic coordinate system, the sampled point clouds are divided to generate a plurality of quadrants which store the reflectivity and / or height of the corresponding sampled point clouds through a three-dimensional histogram; characteristic files are named according to local position coordinates of splicing frame point clouds; the first number of characteristic files corresponding to the splicing frame point clouds with the distance within the preset second distance are obtained, and first matching calculation is conducted to determine the second number of characteristic files; the second number of real-time positions of the current frame point clouds are calculated; the second number of characteristic files are horizontally moved for second matching calculation; and when a preset threshold value is exceeded, it is determined that initialization of laser positioning is completed. Thus, the feasible environment for laser initialization is broadened.

The invention belongs to the technical field of temporary supports for underground fully mechanized excavation faces of coal mines, and particularly relates to an automatic bolt mesh laying step type temporary support for fully mechanized excavation faces, which solves the current problem that the efficiency of high-performance excavators cannot be sufficiently exerted because excavation, temporary supporting and bolting cannot be carried out synchronously. The automatic bolt mesh laying step type temporary support for fully mechanized excavation faces comprises an inner support assembly and an outer support assembly, the inner support assembly and the outer support assembly respectively comprise a left support and a right support, the left support and right support of the inner support assembly are arranged at the inner sides of the left support and right support of the outer support assembly, a height difference exists between the tops of crossbeams and the bottoms of longitudinal beams of one set of support assembly, and carrier rollers are arranged at positions where the tops of the crossbeams correspond to the bottoms of longitudinal beams of the other set of support assembly. Excavation, temporary supporting, bolt mesh laying, bolt mesh connection and bolting can be carried out synchronously, the labor intensity of workers is decreased greatly, the efficiency of excavation is increased, a working face can be supported in time, and a powerful guarantee is provided for the safety of operating personnel.

The invention discloses a treatment system of a shale gas fracturing flowback fluid. The treatment system is characterized by comprising a reaction tank, a tubular microfiltration membrane system, a nanofiltration system and a reverse osmosis system, wherein a chemical agent is added to the reaction tank; chemical precipitation treatment is performed on waste water entering the reaction tank; a treated supernate is conveyed to the tubular nanofiltration system; treated fresh water is conveyed to the reverse osmosis system for treatment. The treatment system of the shale gas fracturing flowback fluid is compact in structure, small in floor area, short in treatment process, high in treatment efficiency, good in outlet water quality, low in power consumption, low in operating cost, convenient in automatic control, and high in economic benefit.

The invention relates to a mist imaging device which comprises a base, a sliding track, a mist generation device, a projection imaging device and a control system, wherein the base is in sliding connection with the sliding track through a walking mechanism; the mist generation device is mounted on the base at the most front end of the sliding track; the projection imaging device and the control system are mounted on the base on the rear side of the mist generation device; the optical axis of the projection imaging device crosses the middle point of the mist generation device and is in an included angle of 15-90 degrees with the surface of the projection imaging device; the control system is electrically connected with the mist generation device, the projection imaging device and the walking mechanism respectively; the mist generation device comprises a holding rack, buffer water tanks, charging pumps, ultrasonic wave atomization devices, guide tubes, atomization nozzles, jet flow pumps and compensation light sources. On one hand, the mist imaging device is capable of effectively meeting requirements of mist imaging operation, on the other hand, the requirement that various types of images and video information are imaged in a mist manner can be flexibly met according to use demands.

The invention belongs to the technical field of temporary supports for underground fully mechanized excavation faces of coal mines, and particularly relates to an automatic bolt mesh laying and connection excavation temporary support device, which solves the current problem that the efficiency of high-performance excavators cannot be sufficiently exerted due to the frequent occurrence of injuries caused by waste rocks dropping from roofs. The automatic bolt mesh laying and connection excavation temporary support device comprises a front support assembly and a rear support assembly, the front support assembly and the rear support assembly respectively comprise a left support and a right support, an automatic bolt mesh laying mechanism and an automatic bolt mesh connection device are arranged on the front ends of longitudinal beams of the front support assembly, the left and right bases and left and right top beams of the front support assembly and the rear support assembly are respectively connected through push-pull cylinders, a height difference exists between the tops of crossbeams and the bottoms of the longitudinal beams of one set of support assembly fixedly connected with the crossbeams, and liftable carrier rollers are arranged at positions where the tops of the crossbeams correspond to the bottoms of the longitudinal beams of the other set of support assembly. Supporting and bolt mesh laying can be carried out synchronously, the labor intensity of workers is decreased greatly, the efficiency of excavation is increased, a working face can be supported in time, and a powerful guarantee is provided for the safety of operating personnel.

The invention relates to a spiral unearthed following jacking pipe curtain machine comprising a pipe curtain drill and a drilling real-time guide and correction system. The pipe curtain drill comprises a jacking cylinder supplying the short stroke and a transmission motor and a transmission chain which supply the long stroke; the drilling real-time guide and correction system comprises a drill direction display light source, a camera, a display and a drilling correction device; the display processes rotation position images, of the drill direction display light source and drilling correction device, captured by the camera and outputs the drilling direction deviation; the drilling correction device corrects the deviation in a rotating manner according to the drilling direction deviation and the own rotation position. The system is capable of tracking and correcting the deviation of the drilling trace in real time, the jacking accuracy is improved, and double drive power is provided for pipe curtain steel pipe jacking through the combination of the jacking cylinder of the short stroke and transmission motor of the long stroke; the double power is provided for the pipe curtain steel pipe jacking through the jacking cylinder and the transmission motor, the operating efficiency is improved, and the construction can be performed rapidly and efficiently.

The invention discloses a self-propelled channel beam transport vehicle which is applicable to transporting channel beams of railways and comprises a main structure, hydraulic suspension systems, a multi-axis vehicle axle, a steering system, a braking system, a power system and an electro-hydraulic control system. The main structure comprises a pair of main beams and an inverted 'concave' main frame structure, the main beams are arranged in a bilateral symmetry manner, the inverted 'concave' main frame structure comprises crossbeams and end crossbeams which are connected between the main beams, two cabs are respectively connected to the front and the rear of the main structure, driving axles are arranged in the front of a vehicle body, driven axles are arranged at the rear of the vehicle body, suspension cylinders of the various hydraulic suspension systems positioned on the various driving axles on the left side and the right side of the longitudinal axle of the main structure are serially communicated with one another to form two groups respectively, all suspension cylinders of the various hydraulic suspension systems positioned on the various driven axles on the left side and the right side of the longitudinal axle of the main structure are serially communicated with one another to form two groups respectively, steering connecting rods of the driving axles are arranged in an inverted splay manner, and steering connecting rods of the driven axles are arranged in a splay manner. The self-propelled channel beam transport vehicle has the advantages that the self-propelled channel beam transport vehicle can run in two directions, is flexible in steering and high in field adaptability, the channel beams can be transported in an online manner, the transport efficiency can be greatly improved, and the under-bridge transport road construction cost is saved.

The invention relates to leakage testing equipment in the nuclear field, and in particular relates to a halogen generator for inspecting leakage rate of iodine adsorber machinery in a ventilation and purification system of a nuclear facility. The halogen generator structurally comprises a pressure-bearing storage tank used for storing a freon liquid reagent, wherein the pressure-bearing storage tank is respectively connected with a compressed air pipeline, a freon charging pipeline and a freon gasification outlet pipeline, the compressed air pipeline comprises two gas flow paths, one of the gas flow paths is connected with the pressure-bearing storage tank through a three-way switch valve, the other gas flow path is connected with the freon gasification outlet pipeline, and a heater is arranged on the freon gasification outlet pipeline. The halogen generator provided by the invention can continuously and uniformly generate halogen gas with stable concentration, can easily generation conditions, is wide in gas generation range, stable in generation rate, convenient and rapid to operate, and good in adaptability to the scene.

The invention discloses a conveying device of a full-automatic safe deposit box display table. The conveying device comprises a conveying chassis, a transverse translation mechanism, a vertical lifting mechanism and a rotating mechanism; a shelf for storage boxes is arranged in the vertical lifting mechanism; the storage boxes are placed on the shelf, and are horizontally conveyed into a library outer protective shell through the transverse translation mechanism; meanwhile, the vertical lifting mechanism is rotated by a certain angle through the rotating mechanism to match the storage boxes with an access port; and the storage boxes are lifted in the library outer protective shell through the vertical lifting mechanism, and are sent to the access port or withdrawn into the library outer protective shell. The conveying device has the following advantages: the rotating mechanism is arranged between the transverse translation mechanism and the vertical lifting mechanism for rotating the storage boxes by a certain angle to match the storage boxes with the access port, so that the floor area of the library outer protective shell is reduced to meet places with less peripheral space, thedevice structure is more compact, the floor area is small, more smooth conveying is guaranteed, and the operation efficiency is improved.

The embodiment of the invention provides a pipeline state detection device and a pipeline state detection method. The pipeline state detection device comprises a laser, a TeraHertz wave detection probe and an analysis device, wherein the laser is used for emitting laser pulses; the TeraHertz wave detection probe is arranged around a pipeline and is connected with the laser through a first optic fiber transmission device and used for receiving laser pulses emitted by the laser to generate TeraHertz waves and transmit the TeraHertz waves towards the outer peripheral wall of the pipeline, and is also used for receiving the reflected TeraHertz waves; the analysis device is connected with the TeraHertz wave detection probe through a second optic fiber transmission device and used for receiving and analyzing reflected TeraHertz waves transmitted by the TeraHertz waves detection probe to obtain the state information of the pipeline. According to the pipeline state detection device and the pipeline state detection method provided by the embodiment of the invention, the leakage point of the pipeline can be accurately positioned, and the perforation depth, position and size of the leakage point can be accurately detected. Besides, in the pipeline state detection device and the pipeline state detection method provided by the embodiment of the invention, the optic fiber transmission is adopted, the onsite adaptability is reinforced, and the detection of the pipeline leakage is more reliable and can resist the references of various severe environments.