76results about How to "Small scope of work" patented technology

The pipe plate assembling machine for rectangular shield includes a pedestal, a rotating apparatus, a longitudinal translation unit, a lifting unit and head clamping unit, as well as characterized front lifting unit and transverse translation unit. The present invention has two stages of lifting, increased transverse translation unit, double head clamping unit and trimming, so that it has expanded head clamping unit reached space, cooperative grasping and assembling of the pipe plate and raised adaptability. The present invention has the advantages of great assemble distance and wide operation range and is used in the construction of rectangular tunnel, especially that with great cross section size.

The invention provides a 3D printer based on polar coordinates. The 3D printer comprises a bottom plate, a workbench arranged on the bottom plate and capable of moving in a plane according to the polar coordinates, and a printing head having an adjustable distance with the workbench. The 3D printer provided by the invention realizes the completion of printing of the printing head for any curve and straight line in a working stroke under a coordinate system through the workbench, and has the advantages that the printing speed is fast, the curved surface dimensional accuracy of the printed parts is high, and the surface quality is also greatly improved; and meanwhile, the 3D printer provided by the invention is simple in structure, small in size and large in working range, the movement amounts of the printing head and the workbench during curved surface printing are much smaller than those under a rectangular coordinate system, the noise is also greatly reduced, and the service life is longer.

The invention discloses a monitoring system for railway track bolt looseness. The monitoring system comprises a laser emission module, a track fiber, a cutting device, a laser receive module and a processing circuit module. The processing circuit module comprises an electromagnetic relay, an alarm circuit module and a control circuit module used for controlling a railway track system. The cutting device is used for cutting off the fiber when a bolt loosens. When the railway track bolt loosens, the cutting device cuts off the fiber, the laser receive module can not receive a light signal, so an alarm is given; meanwhile, a railway track relay circuit is cut off. The invention further discloses a monitoring method for railway track bolt looseness. According to the monitoring system and the monitoring method for railway track bolt looseness, the looseness condition of the railway track bolt is systematically monitored in real time; in addition, the design process and the manufacturing process are simple, the price is low and large-scale manufacturing and application are facilitated.

The invention relates to a method and device for expanding the travel or control displacement of linear actuators that is available during an imprinting or embossing stroke. The wedge error compensating head (2) comprises a movable part (4), a stationary part (3) and at least three linear actuators (8). Each linear actuator (8) is connected to one of the parts (3, 4) at one end and to the other of the two parts (4, 3) by wedges (9) at the other end. By means of the wedges (9), it is possible to coarsely or roughly compensate for wedge errors and possible tolerances of individual subcomponents of the system. The linear actuators (8) are only used for fine or precision compensation for the wedge error. In this way, sufficient control displacement is available for the imprinting stroke with the linear actuators.

The invention discloses a rotating plate transition type two-way loading and unloading machine and relates to the field of logistics transportation goods loading and unloading mechanical equipment. The rotating plate transition type two-way loading and unloading machine is composed of a bearing trolley, a middle conveyor, two belt conveyors, a material blocking device, a slippage device, a lifting device and an operation control system of the rotating plate transition type two-way loading and unloading machine. The rotating plate transition type two-way loading and unloading machine is simple in structure, reliable in work, economical, practical, capable of saving energy and environment-friendly; the rotating plate transition type two-way loading and unloading machine is closed up during walking, the appearance size is small, and movement and field transferring are convenient and fast; the rotating plate transition type two-way loading and unloading machine is unfolded in work, the operation range is large, the logistics direction can be guided and changed, and positive and negative two-way loading and unloading are achieved; the work orientations and postures of the belt conveyors can be adjusted so that the rotating plate transition type two-way loading and unloading machine can adapt to goods loading and unloading point changes, and direct reaching of goods is achieved through one time of loading and unloading; the goods can directly enter a compartment, a goods cabinet and a container to be operated, auxiliary carrying is reduced, the labor intensity is relieved, the operation time is shortened, the loading and unloading work efficiency is improved, and the loading and unloading carrying cost is reduced; and the goods falling difference is small in the loading and unloading conveying process, transition is stable and free of impacting, dust discharge can be reduced, the work environment is improved, falling damage during transition delivery of articles is avoided, and the loading and unloading safety of the goods is guaranteed.

The invention provides a ferromagnetism wall climbing working robot comprising a walking unit, a swing unit, a protective unit and a control unit. The walking unit comprises a left drive wheel assembly, a right drive wheel assembly, a universal wheel assembly and a vehicle frame assembly. The two drive wheel assemblies are symmetrically installed at the front bottom of the vehicle frame assembly. The universal wheel assembly is installed at the rear bottom of the vehicle frame assembly. Strong arc-shaped permanent magnets are fixedly installed in all the drive wheel assemblies and the universal wheel assembly. The swing unit comprises a swing drive assembly, a swing rod assembly and an angle adjusting sensor assembly. The control unit comprises a control box, a control cabinet and a wireless remote control terminal.

A compensator for balancing an ac voltage network with a load connected between two phases. The compensator includes a voltage-source converter and a balancing device. The balancing device includes an inductance connected between phases before the load.

The invention discloses an uninterruptible-operated bypass connection device applied between a European ring main unit and an American type ring main unit. The bypass connection device is arranged between the European ring main unit and the American type ring main unit, and comprises a first flexible cable connecting device, a bypass switch and a second flexible cable connecting device which are sequentially connected. A European cable terminal is formed by a T-shaped sleeve pipe and a cable wiring terminal which can be separated, and a cable with the cable wiring terminal is firstly led in through an entrance hole of the European ring main unit, and is then inserted in through a lower end port of a vertical pipe part of the T-shaped sleeve pipe, so that the connection of the European cable terminal and a European cable sleeve pipe is convenient. According to the device, the characteristic that a flexible cable shielded wire is all connected is utilized, an earth connection point is led to a bypass switch from the cable terminal, and a ground wire has no need to be erected additionally. The flexible cable connecting device has a simple structure and is convenient to use, the operation range is reduced, uninterruptible-operated overhaul operation is convenient, and the reliability of supplying power to the wire is improved.

The invention provides a hoisting method for a turricula and the device thereof. A lifting pedestal and a lazy arm pedestal are arranged on a lifting working platform. A rotary lazy arm is hinged with the lazy arm pedestal. A lifting rope and a lifting winch form a lifting mechanism through a crown block and the rotary lazy arm of the lazy arm pedestal. A pulling rope and a pulling winch form a pulling mechanism through the crown block of the rotary lazy arm. A hoisting rope and a hoisting winch form a hoisting mechanism through a hoisting block of the rotary lazy arm and a block on the lazy arm pedestal. The other end of the hoisting rope is provided with a lifting hook. The invention uses the lifting winch to lift the lazy arm in the hoisting mechanism and simultaneously lift the turricula and prick as well as release the hoisting winch and the pulling winch to arrange the turricula on a preassemble tower seat, mount and construct thereof to finish the hoisting of the turricula. The invention solves the problems that the upright stanchion tower of a crane group in existing hoisting construction method and device for turricula is restricted by conditions and has the disadvantages of higher tower composing cost, needing men for measuring instruments, a plurality of anchor block pits and operating personnel as well as low efficiency, etc.

The invention discloses a simple line spanning frame which comprises two stand columns and a spanning rod, wherein the spanning rod is connected with one stand column through a shaft and connected with the other stand column in a clamping manner, fixed bracing wires are arranged on the stand columns, the upper surface of the spanning rod is longitudinally provided with an elongated slot, a plurality of pulleys are arranged in the elongated slot, each pulley is provided with a draught line penetrating through the elongated slot of the spanning rod and extending out of the spanning rod, one end of the draught line is provided with a balance weight, and one end of the spanning rod, which is connected with the stand column through the shaft, is provided with a digging rope. The line is spanned by using the simple spanning frame, and requirements on various spanning environments can be met. The spanning frame has the advantages of simple structure, light weight, convenience and flexibility for operation, strong generality, safety in spanning, no hidden dangers, and convenience and simpleness for transportation and assembly. The working at height can be carried out by constructors without climbing up and down the spanning frames.

The invention discloses a wide-range tunnel magnetoresistance sensor, which is formed by sequentially superposing an antiferromagnetic layer, a ferromagnetic pinning layer, a barrier insulating layer,a ferromagnetic free layer and a non-magnetic metal layer, and utilizes current to generate spin current in a functional material (W, Ta, Pt, CuBi and the like) electrode layer with a high spin orbittorque effect. The spin current is injected into a free layer in the magnetic tunnel junction to generate a bias magnetic field, so that the working range of the TMR magnetoresistive sensor is changed, and the magnitude and direction of the bias magnetic field can be conveniently and accurately controlled through the magnitude and direction of the impressed current. Therefore, the working range of the TMR magnetoresistive sensor can be adjusted in real time according to actual requirements, and the problem that the working range of the TMR magnetoresistive sensor is small is solved.

The invention relates to an environment-friendly curing agent for stabilizing soil, which can improve the bearing capacity of a subgrade. The curing agent for stabilizing the soil is characterized by comprising the following components in parts by weight: 2-18 parts of polyanionic cellulose, 2-6 parts of sodium sulfate or calcium sulphate, 12-50 parts of sulfonic acid, 2-53 parts of granulated blast furnace slag, 1-5 parts of neutral water glass and 38-150 parts of water. The curing agent for stabilizing the soil can remarkably improve the bearing capability of the cured soil and has good antiseepage effect and durability, and the situation of argillization can be reduced after the curing agent is soaked in the water; therefore, the environment-friendly curing agent is suitable for various construction pavements, in particular rural roads developed for travel and agriculture with the requirements of low cost, short construction period and fast effect. The environment-friendly curing agent not only improves the road construction quality, but also makes the material application and the construction process more environment-friendly, can be further applied to the base course and surface course of road and construction engineering and the fields of wind prevention and sand consolidation, canal seepage control, burning-free low-carbon environment-friendly bricks and the like, and is suitable for the semimechanical operation and the large-scale mechanical construction operation in country.

The invention discloses integral type T-shaped outer cantilever roads and a construction method thereof. The integral type T-shaped outer cantilever road comprises a vertical face concrete retaining wall and a concrete roadway slab integrated with the vertical face concrete retaining wall by pouring to form a road of which the cross section is in a T shape, wherein the vertical face concrete retaining wall is used as a boundary, an outer cantilever structure is formed on the outer side of the concrete roadway slab, an inner side roadbed positioned on a side slope is formed on the inner side of the concrete roadway slab which is anchored to the side slope through an inner longitudinal beam. In the integral type T-shaped outer cantilever roads, a cantilever roadway slab is used to complement parts where the roads are not wide through the outside; one side of a steel bar concrete roadway slab close to mountains is thickened partially to form the inner longitudinal beam which is anchored to the side slope to ensure the overturning stability resistance of an integral type T-shaped road structure; and simultaneously, the road structure has high capability of resisting earthquake action, and is suitable for earthquake-prone areas and the repair of original roads destroyed by earthquake. The integral type T-shaped outer cantilever roads avoid deep excavation, high filling, riverway occupation, scouring and erosion and reduce potential safety hazards during construction. In addition, the integral type T-shaped outer cantilever roads reduce the operating range of the construction along the height of hillsides obviously and have good comprehensive technology and economic and social benefits.

The invention provides a positioner and a welding device. The positioner comprises a bottom frame, a first support mechanism, a driving mechanism, a second support mechanism, a driven mechanism and abearing frame. The first support mechanism is arranged at the first end of the bottom frame. The driving mechanism comprises a driving assembly and a first connection assembly, is installed on the first support mechanism and is in driving connection with the first connection assembly. The second support mechanism is installed at the second end, opposite to the first end, of the bottom frame. The driven mechanism comprises a rotary structure and a second connection assembly connected with the rotary structure. The two ends of the bearing frame are fixedly connected with the first connection assembly and the second connection assembly correspondingly. According to the positioner and the welding device, production cost of a chassis support is lowered, the number of times of clamping of the chassis support is reduced with the positioner, the positioner drives the chassis support to overturn, thus almost all weld joints can be welded, production efficiency is improved, and labor intensity is relieved.

A piezoelectric microvalve employs a valve element formed of hermetically sealed and opposed plates flexed together by a cross axis piezoelectric element. Large flow modulation with small piezoelectric actuator displacement is obtained by perimeter augmentation of the valve seat which dramatically increases the change in valve flow area for small deflections.

The invention discloses a non-power-outage operated bypass connection device used between two European-style ring main units. The non-power-outage operated bypass connection device used between the two European-style ring main units comprises two lines of flexible cables connection devices led out from the two European style ring main units and a by-pass switch arranged between the two lines of flexible cable connection devices. Each of the flexible cables connection devices comprises a cable terminal, a flexible cable and a plug type quick connector. The cable terminal is composed of a detachable T casing pipe and a cable wiring terminal. A cable with the cable wiring terminal is led in from a line inlet arranged on each of the European-style ring main units and is inserted from a lower end mouth of a vertical pipe part of the T casing pipe, thus connection between the cable terminal and a cable sleeve is greatly benefited. According to the non-power-outage operated bypass connection device used between the two European-style ring main units, the touch down point is changed from the cable terminal portion to the by-pass switch portion by using the characteristic of shielded lines all-line connecting of flexible cables, and thus ground lead erecting is not needed. The flexible cables connection devices are simple in structure and convenient to use, reduce operation scope, facilitate not power-outage examine and repair operation and improve line power supply reliability.

The invention discloses an image splicing method based image overlaying and fuzzy reproduction. A first segmentation image and a second segmentation image are separated from a first image and a second image respectively, thereby laying a foundation for subsequent overlapped part image mean value processing and thus reducing the working range of mean value processing and improving the mean value processing efficiency. According to the invention, a mean-value overlapped image covers a position where the first segmentation image and the second segmentation image are overlapped in a first-level spliced image spliced by the first image and the second image. The mean-value overlapped image is a mean-value image after combination of the first segmentation image and the second segmentation image, wherein characteristics of the first segmentation image and the second segmentation image are integrated and differences of the two images is neutralized. After the mean-value overlapped image covers the first-level spliced image, a transition effect is realized for splicing of the first image and the second image, so that a problem of pixel hopping during the image splicing process can be solved.

The disclosure is generally directed to systems and methods for reducing power consumption in a smart key of a vehicle. In an exemplary method, an accelerometer in the smart key detects that the smart key is moving. For example, an individual may be carrying the smart key in his / her pocket and walking towards the vehicle. However, an RF transceiver circuit of the smart key may be out of range of a communication system in the vehicle. A processor in the smart key may place some circuits, such as a wakeup receiver, in a power-down condition, based on detecting the moving state of the smart key and a lack of communications between the Bluetooth® transceiver circuit and the communication system of the vehicle. The wakeup receiver typically has a smaller operating range than the RF transceiver circuit and is therefore unnecessary when the smart key is far from the vehicle.

The invention provides a five-axis portal manipulator and an operating method thereof. The five-axis portal manipulator comprises two stand columns, a fixing block, a first moving block, a second moving block, a first rotating block, a second rotating block and a clamping device. The five-axis portal manipulator is used for executing the actions of material taking, material feeding and material retaking, accordingly, the occupied area when the manipulator and a working machine table cooperate is reduced, the operation time is shortened, and meanwhile, the using safety is improved.

A centrifugpl compressor for a chiller includes a casing, an inlet guide vane, an impeller downstream of the inlet guide vane, a motor and a diffuser. The casing has inlet and outlet portions with the inlet guide vane disposed in the inlet portion. The impeller is rotatable about a rotation axis defining an axial direction. The motor rotates the impeller. The diffuser is disposed in the outlet portion downstream from the impeller with an outlet port of the outlet portion being disposed between the impeller and the diffuser. A hot gas injection passage is provided to inject hot gas refrigerant between the inlet guide vane and the impeller. A controller is programmed to control an amount of the hot gas refrigerant.

The invention relates to a construction method of integral replacement of an existing electric railway overhead contact system crossover and a section insulator. The construction method includes following steps: a, decomposing and mooring the existing crossover; b, measuring decomposing length of a new crossover to be set up; c, setting up a long anchoring section of the new crossover, and removing a long anchoring section of the existing crossover; d, integrally replacing a new crossover short anchoring section and a new section insulator; e, performing suspension adjusting and power transmission operation. In actual work, according to actual conditions that railway busy mainline vertical skylights are short in blocking time, few in number and low in demand rate and existing overhead contact system crossover and station tracks are in a same anchoring section, the construction method is acquired through careful design and repeated verification. Inherent thinking of existing crossover and section insulator replacement construction processes is broken through, and construction efficiency and construction safety are remarkably.

The invention relates to a machining related device, in particular to a multi-specification flaring device which comprises a base mechanism, a flaring adjusting mechanism, a multi-specification flaring mechanism, auxiliary mechanisms and a pipe fitting fixing mechanism. The device is characterized in that the flaring adjusting mechanism is fixedly mounted on the base mechanism; the multi-specification flaring mechanism is fixedly installed on the flaring adjusting mechanism; the pipe fitting fixing mechanism is fixedly installed on the base mechanism; and the auxiliary mechanisms are fixedly installed on the pipe fitting fixing mechanism and the base mechanism. The multi-specification flaring device can perform flaring operation on two kinds of pipe fittings with different diameters, and meanwhile, the flaring depth of the pipe fittings can be adjusted, so that the flaring processing requirements of different specifications are met.

The invention discloses a cable terminal for a European-style branch box and a ring main unit. The cable terminal is connected with a cable sleeve which is fixed on a European-style branch box / a ring main unit in an inserting mode, the cable sleeve comprises a base plate and a bolt arranged on the front of the base plate, the cable terminal comprises a T casing pipe, a cable wiring terminal and an insulation sealing head. The T casing pipe comprises a horizontal casing pipe part and a vertical casing pipe part, wherein the horizontal casing pipe part is communicated with the vertical casing pipe part, the base plate of the cable sleeve is connected with the left side of the horizontal casing pipe part in an inserting mode, the bolt is arranged inside the horizontal casing pipe part, the cable wiring terminal is inserted from a lower end mouth of the vertical casing pipe part and connected with the bolt in a sleeve mode, the insulation sealing head is connected with the right side of the horizontal casing pipe part in an inserting mode and connected with the front end of the bolt in a threaded mode. The cable terminal for the European-style branch box and the ring main unit is simple in structure and convenient to use, facilitates connection between the European-style branch box and the ring main unit and a bypass cable, reduces operation scope, and improves the line power supply reliability.

The invention relates to a cloth surface defect online monitoring device. The problems in the prior art are solved. Key points of the technical scheme are as follows: the device is arranged on a clothproduction line, the device comprises a computer for identification, a labeling machine for marking defective labels, an encoder, a front light source, a backlight source and an identification camera, the front light source is arranged above the backlight source, the front light source comprises a concentric-square-shaped light source table with a rectangular hole in the center, light sources ofthe light source table are evenly arranged on the two sides of the long edge of the rectangular hole. The identification camera is arranged above the rectangular hole; the identification camera, the front light source and the backlight source form a straight line vertical to the cloth; the output end of the identification camera is electrically connected with the computer for identification, the labeling machine is located behind the identification camera, the action end of the labeling machine is aligned with cloth, the control end of the labeling machine is connected with the computer for identification, the encoder is used for detecting the transmission speed of the current cloth, and the output end of the encoder is connected with the computer for identification.

The invention discloses a full-automatic dung cleaning device for intelligently driving dairy cows. The full-automatic dung cleaning device comprises a bottom plate, wherein a conveying belt clamping groove is formed in the longitudinal central axis position of the bottom plate, a conveying belt is arranged in the conveying belt clamping groove, a dung scraping plate bearing base is arranged on the conveying belt, a dung scraping plate supporting shaft is arranged on the dung scraping plate bearing base, and a dung scraping plate is arranged on the dung scraping plate supporting shaft; a dairy cow driving device is further arranged on the dung scraping plate bearing base and comprises a push rod, one end of the push rod is hinged to the dung scraping plate bearing base, a transverse rotating shaft is arranged at the other end of the push rod, a massage roller rotating along the transverse rotating shaft is arranged on the transverse rotating shaft, a lifting rod is further arranged on the dung scraping plate bearing base, and the top end of the lifting rod is connected with the push rod; and the conveying belt is connected with a drive device, the drive device comprises a motor frame and a motor arranged on the motor frame, and a pressure sensor electrically connected with the conveying belt and the motor is arranged at the bottom of the motor frame.