258results about How to "No disturbance" patented technology

The invention provides a diamond rope saw static force cutting method, relating to a diamond cutting method. In the invention, an adopted hydraulic pressure diamond rope saw is driven by an hydraulic motor to move at a high speed around the cut surface of a cutting object (4) so as to cut the cutting object (4); the grinding material of diamond rope saw (5) is diamond particles, so the diamond rope saw can be used for cutting stone, reinforced concrete or other hard materials; the power source of the cutting is the hydraulic motor, a hydraulic pump is driven by the hydraulic motor to operate smoothly; and the hydraulic motor can be distantly controlled by a high-pressure oil pipe to reduce vibration and noise in cutting process and enable the cutting object (4) is cut and separated stably. The invention has the advantages of high safety and efficiency and environment protection.

The invention discloses a nano-precision six-freedom-degree magnetic suspension jiggle station and application. The jiggle station is mainly applied to semiconductor photoetching equipment. The jiggle station comprises a cross stand and four two-freedom-degree actuators. Each two-freedom-degree actuator comprises permanent magnets polarized along the vertical direction, a horizontal force coil and a vertical force coil, wherein the permanent magnet is fixed at the tail end of the cross stand, and the horizontal force coil and the vertical force coil are arranged on the lateral surface and the underside of the permanent magnet respectively and keep a clearance with the permanent magnet; the cross stand and four permanent magnets polarized along the vertical direction form a rotor of the jiggle station; the horizontal force coil and the vertical force coil are fixed by a coil framework respectively to form a stator of the jiggle station; and the stator is fixed on a pedestal of the jiggle station. The combination of two jiggle stations and a two-freedom-degree large-stroke linear motor can form a positioning system of a double silicon wafer station of a photoetching machine. The jiggle station has the characteristics of simple structure, large driving force, light mass and no cable disturbance, and easily realizes high-precision and high-acceleration six-freedom-degree jiggle.

The invention discloses a frame type three degree-of-freedom cradle head control system and a control method thereof. The frame type three degree-of-freedom cradle head control system comprises an outer frame, a middle frame, an inner frame, a motor used for controlling the frames, reducing gearings and a sensor module used for detecting the position and the speed. The frame type three degree-of-freedom cradle head control system is characterized in that the fine direction tuning and the pitching control of the cradle head are directly driven by adopting a rare earth permanent magnet direct current torque motor. The outer frame adopts a common direct current motor and a pair of reducing gearings to realize the coarse tuning of the direction, the structure of the middle frame is directly driven by the rare earth permanent magnet direct current torque motor so as to realize the pitching motion control a shooting device, and the structure of the inner frame is directly driven by the rare earth permanent magnet direct current torque motor so as to realize the fine direction tuning of the shooting device. The invention further provides a control method of the frame type three degree-of-freedom cradle head control system. The frame type three degree-of-freedom cradle head control system disclosed by the invention has the advantages of large mechanical strength, favorable vibration resisting performance, favorable image stabilizing performance, simple structure and light weight, and is suitable for aviation shooting and multiple aviation applications.

The invention discloses a start-stop method for a unified power flow controller. A start process comprises the steps of placing a parallel-side transformer into a parallel-side converter for charging and then unlocking the parallel-side converter to control the direct current voltage to be stable; unlocking a serial-side converter, and controlling the current of a by-pass switch of the serial-side converter to be close to zero; disconnecting the by-pass switch to connect a serial-side transformer to a line in series, wherein the serial-side converter enters a normal operation mode when the line stably runs; and during stop, switching the control mode of the serial-side converter firstly to enable the by-pass switch to be switched on in vicinity of zero current, controlling the current of the serial-side transformer to be gradually reduced into zero and stop the serial-side transformer, and then locking the serial-side converter and the parallel-side converter and stopping the parallel-side transformer. By the start-stop method for the unified power flow controller, the direct current overvoltage and overcurrent of the converter can be effectively inhibited when the serial-side transformer is switched off, the compact of current oscillation of an alternating current line to the serial-side transformer is reduced, and stable start and stop of the unified power flow controller are realized.

The invention discloses a river and lake bottom sludge pollutant flux test method and a river and a device based on a diffusion theory. The method comprises the following steps of: A, acquiring a bottom sludge sample; B, putting the bottom sludge into a base of an experimental device, and enabling the sludge surface to be horizontal; C, slowly injecting water to a column port along a column wall; D, injecting running water into the experimental device without the bottom sludge; E, standing for a certain time; F, measuring the pollutant concentration of the taken water sample; G, calculating a degrading coefficient of the pollutant in the water; H, calculating an initial concentration value of the bottom sludge water; and I, calculating a pollutant exchange flux of a water-sludge interface. A base plate is fixed at the bottom of a constant-temperature water tank; a base wall is arranged on the base plate; a lower flange disk is arranged on the upper part of the base wall; an upper flange disk is arranged at one end of a column body; and an upper flange disk fixing bolt flange hole is formed in the upper flange disk. The method is feasible, and is convenient to operate; the experimental device has a rational and simple structure; operations of accommodating deposits, sampling water samples and the like are extremely convenient; and outstanding economic benefit is achieved.

The invention relates to a construction method for an underground tunnel, in particular to a construction method for a river-crossing shield tunnel crushed stratum communication channel, which is used for solving the problems of failure of stratum reinforcement, long working period, high cost, poor quality and the like existing in the construction process of the conventional river-crossing shieldtunnel crushed stratum communication channel. The method comprises the following steps of: determining the position of the communication channel; before opening, performing pre-grouting to integrallyconsolidate broken rock outside the excavation outline of the communication channel; forming a high-strength waterproof curtain; before excavation, performing stress conversion; drilling and partitioning to remove a left line pipe sheet, brushing the top, performing tunnel excavation with a combined damping burst technology, and timbering; and drilling and partitioning to remove a right line pipesheet, brushing the top, and performing second lining construction by adopting a combination template. Due to the adoption of the construction method, water seepage is avoided after excavation, the technology is advanced, the blank of a communication channel pre-grouting technology is fulfilled, the working period is short, the mechanical degree is high, the process is simple, construction is environmentally-friendly, collapse is avoided, and over-excavation is greatly lowered; and the method has a wide application range.

The invention discloses a security detection device for elevator landing doors and the detecting method, one mechanical switch is arranged on each landing door, which is closed when the landing door is close, and is breaking when the landing door is open. The landing signal processing device reads in the signal of the mechanical switches and sends the signal to the elevator controller by serial communication mode. The elevator controller automatically obtains the position of the elevator car and the relevant information in real time, and makes the safety decision according to the position of the elevator car and the state of the mechanical switches on each landing door. The invention has the advantages of detecting the unsafe events that the landing door is opened but the elevator car is not here, and the elevator car arrives certain layer, but is not in the door-open area, and the landing door is opened, effectively improving the safety performance of the elevator.

A method for designing the non-air-gap smooth-filling casting features controlling the filling smoothness, lowering the filling speed, preventing air and oxidized film from coming in molten metal, reducing the size of pouring channel, and increasing the technological output rate. Its casting system has a pouring cup, a plug rod system connected with said pouring cup and opened when filled molten metal in the pouring cup reaches its 1 / 2-1 / 3 height, and the arc corner between vertical and horizontal pouring channels. Its pouring speed is 0.5-1.0 m / s.

A microfluidic system for causing perturbations in a cell membrane, the system including a microfluidic channel defining a lumen and being configured such that a cell suspended in a buffer can pass therethrough, wherein the microfluidic channel includes a cell-deforming constriction, wherein a diameter of the constriction is a function of the diameter of the cell.

The invention discloses a solidification and feeding method for a complicated annular thin-wall shell steel casting. By means of the solidification and feeding method, the problem that in the casting process of existing complicated annular thin-wall steel castings, shrinkage porosity, shrinkage cavities and crack defects are prone to occur is resolved. The solidification and feeding method comprises the following steps that a, steel casting sand mold cavity is made; b, annular transverse runners and a straight runner are made on the steel casting sand mold cavity, slag collecting cylinders are arranged on the upper surfaces of the annular transverse runners, gap inner runners are arranged between the slag collecting cylinders and the outer wall of the steel casting sand mold cavity, a feeding auxiliary sprue and top risers are arranged on the upper portion of the steel casting sand mold cavity, and a gap auxiliary runner is arranged between each top riser and the feeding auxiliary sprue; c, during pouring, the film forming pouring temperature of molten metal is 1500 DEG C-1520 DEG C; and d, when the molten metal level reaches the upper portions of the top risers, melt metal pouring is stopped on the straight runner, and the molten metal enters the steel casting sand mold cavity through the feeding auxiliary sprue until pouring is completed. The whole mold filling process is stable, no disturbance exists, and the phenomena of pores and dreg inclusion defects are avoided.

The invention discloses a compressionmeter of nondisturbed soil. A crossbeam is installed on the upper of the upright post of the bottom plating, a load bearing knife edge on the upper head face of the longitudinal girder and the groove on the bottom head face of the crossbeam are matched and fixed, the balancing counter poise is placed on the short longitudinal girder, the outer frame component comprising the load disk and the hook is equipped on the bottom of the long longitudinal girder; the bottom permeable stone, the spacing ring and the cutting ring are equipped in the hole of the foundation; the inner tube is composed of three petals and is inserted into the outer tube, the inner tube is matched with the excircle of the cutting knife, one ends of three fixed poles are respectively hinged joint with foundation, the other ends are equipped with top caps and press on the head face, when the soil body is pressed into the inner tube, the permeable stone is pressed on the soil body from the top cap, the top pressure cap is pressed on the permeable stone to form a pressure cabin component. The pressure cabin component is installed on the outer frame rack component bottom plating, the crossbeam and longitudinal girder location are adjusted, the pressure column is covered into the top pressure cap, the longitudinal girder is aimed at the top pressure cap center by pressure column, which form the nondisturbed soil compressionmeter. In order to provide nondisturbed soil sample for related research, the remoulded soil can be molded and pressed therein, and forms a sample without disturbance.

A method for measuring corner of gas floating table in noncontact three shafts type includes erecting green micro laser and color CCD camera on table surface (TS) connecting CCD camera to image collecting card and erecting said card in TS control unit, setting measurement target formed by four red LED and white base plate above said table, using CCD camera to collect image formed by light points made on white base plate by said LED and micro laser, calculating out rotation parameter of TS by utilizing erection information of said target and CCD camera, obtaining said image continuously for realizing corner measurement of said table.

The invention relates to a split type gas displacement type underground water sampler which comprises a sample containing pipe, an inflation and deflation unit and a water acquirement pipeline; the inflation and deflation unit comprises an air source, an air pipe and an air pressure controller, the upper end of the sample containing pipe is communicated with the inflation and deflation unit, and the water acquirement pipeline comprises a water outlet pipe. The underground water sampler also comprises a sampling unit, wherein the sampling unit comprises a water outlet non-return valve, a tee and a water inlet non-return valve which are sequentially communicated from top to bottom; the water acquirement pipeline also comprises a hose which is communicated with the lower end of the sample containing pipe and a middle outlet of the tee, and the water outlet non-return valve is communicated with the water outlet pipe. The invention solves the technical problems of large disturbance of underground water, existence of a gas spilling phenomenon and the like during sampling. The invention realizes the sampling of the underground water under the conditions of low air pressure and small gas quantity and has the advantage of high sampling efficiency.

The invention discloses a method for grouting polymers for tunnel protection. According to the method, a polymer material is grouted to the periphery of the lining structure of a tunnel aiming at dissolved cavities existing in tunnel surrounding rock or cavities caused by collapse of a tunnel, and the polymer material expands rapidly after a reaction to form a polymer buffer layer in the cavity at the periphery of the lining structure, thereby preventing rocks above the tunnel from falling to impact the tunnel lining. The method has the advantages of strong pertinence, good controllability, no disturbance to the lining, rapidness in construction, simple process, high efficiency and the like. Therefore, the polymer material with light weight and good elasticity has been successfully applied in the tunnel engineering, and shows the huge economic and social benefits and wide application prospect.

The invention relates to a high-water expansion filling material belonging to the technical field of buildings, water bodies and subway mining. The high-water expansion filling material is characterized by being slurry containing fly ash, an expansive agent, a retardant, an accelerating agent, a curing agent and water. The solid-liquid ratio is 1:1.2 to 1.5, the proportion is 1.35, and the expansion rate is 10-30 percent. The invention solves the problems of active pressing top-filling and long-distance gravity feeding in medium and thick coal beds and has very important meaning to the improvement of the domestic mining biological environment and the increase of the resource recovery rate.

The invention relates to a test method of a rock aging deterioration process. A group of unconfined acoustic emission probes and a group of unconfined receiving probes are respectively placed on two parallel lateral planes of two sides of a rock sample and continuously measure transverse wave velocity of the rock sample in an aging test process. Simultaneously, a group of pressure-bearing acoustic emission probes and a group of pressure-bearing receiving proves are respectively placed on the upper end face and the lower end face of the rock sample and continuously measure longitudinal wave velocity of the rock sample in the aging test process. With the help of a theoretical formula, the transverse wave velocity and the longitudinal wave velocity obtained through measurement are converted into transverse elastic modulus and longitudinal elastic modulus of the rock sample. At last, mathematical regression analysis is performed on the transverse elastic modulus and the longitudinal elastic modulus so as to obtain an expression function of an aging deterioration rule of the rock sample. The test method of the rock aging deterioration process enables users to effectively observe macro-features of rock in a mesoscopic deterioration process occurring with time and achieves bidirectional synchronous whole-process nondestructive measurement on aging deterioration of the rock sample.

The invention provides a device and a method for measuring attitude angle of a three-axis air-bearing table. The three-axis air-bearing table has a cursor measuring system installed on its table-board, and has a CCD vidicon mounted with bracket above the table; the CCD vidicon is connected with an image collection card via data cable; the image collection card is installed in a computer which is equipped with a wireless transmission device. The inventive method comprises steps of employing a black-and-white CCD vidicon suite to collect images of measure cursor system composed by infrared light emitting diodes which are performed infrared filtering; employing the computer vision theory and combining with the distance information between cursor dots to be measured to calculate the relative motion parameters that the air-bearing table board relatives to the CCD vidicon; and realizing three-axis air-bearing table attitude angle measurement via continuously obtained image array without touch, disturbance and with large range and high frequency. The invention also can perform attitude angle measurement of single-axis air-bearing table or five-freedom air-bearing table.

The invention relates to a shield construction method for clearing obstacles by punching a rock stratum section, comprising the following steps of: at first, determining a punching obstacle-clearing construction area as full-section punching construction; lapping at a pile hole position, wherein a bottom elevation of a pile is lower than a bottom elevation of a shield tunnel; determining a last-stage punching pile width range according to a probing result; carrying out punching obstacle-clearing construction by using a drilling construction process of a punching and filling pile; and directly injecting rapid-rigid slurry to fill an underground guide pipe after clearing the obstacles by punching. The obstacle-clearing construction method of a punching pile machine provided by the invention has the advantages of simple equipment, low manufacturing price, high security, rapid construction, smaller environment influence and the like, provides a novel treatment means for meeting the obstacles in underground engineering, such as shield, pipe-jacking and the like, and has a wide application prospect.

The invention discloses a manual rotating cylindrical sediment sampler which includes a force applying part consisting of a T-shaped handle and a connection rod as well as a knife cylinder part consisting of the upper cover of the knife cylinder and the knife cylinder (comprising a cylindrical screw auger). The T-shaped handle, the connection rod and the upper cover of the knife cylinder all adopt the connection modes of a reversed U-shaped through slot and a cylindrical cross connector. The sampling personnel holds the T-shaped handle and vertically inserts the sampler into the underwater sediment. During the process of inserting down, the water in the cylinder is drained out from the drain hole of the side surface at the upper end of the knife cylinder as well as the water through hole of the center of the upper cover of the knife cylinder; after reaching a certain depth, the T-shaped handle is clockwise pressed down in a rotating way, the cylindrical screw auger at the lower end of the knife cylinder with the deep angle of 45 degrees rotates downwards; the collected depth of the sediment is confirmed according to the scale on the connection rod to finish the motion of sampling. The device can easily collect the cylindrical sediment with the needed depth under the operation of manual rotating; besides, the device has a simple structure, saves force, can maintain the sample to have non disturbances and fidelity sequences.

The invention discloses a three-dimensional reconstruction method for a soil microstructure. The three-dimensional reconstruction method comprises the following steps: I, acquiring a soil sample: acquiring the soil sample on which three-dimensional reconstruction is required to be performed, wherein the soil sample is a cylindrical soil sample; II, hierarchically scanning the soil sample: hierarchically scanning the soil sample from top to bottom by using a scanning electron microscope, wherein the soil sample is divided into a plurality of scanning surfaces from top to bottom, the scanning electron microscope is adopted during scanning of each scanning surface, and each scanning surface is divided into a plurality of regions for scanning, then a plurality of electron microscope scanning images acquired by scanning are spliced to acquire an entire electron microscope scanning image of the scanning surface; III, sorting the electron microscope scanning images; IV, positioning the images; V, performing three-dimensional reconstruction: calling a three-dimensional reconstruction module to process a plurality of entire electron microscope scanning images to acquire a three-dimensional space model of the soil. The method has the advantages of simple steps, rational design, convenience in implementation and good use effect, and the established soil three-dimensional space model can truly reduce the internal structure of the soil.

The invention discloses a high-efficiency desulfurized active coke analysis tower and an analysis method. The analysis tower comprises a material feeding section, a preheating section, a first buffering section, an analysis section, a second buffering section, a cooling section and a material discharging section which are communicated with one another in sequence from top to bottom, wherein the preheating section, the analysis section and the cooling section are all of tube-shell type heat exchange structures; a cooling section gas inlet is formed in the lower part of the cooling section, and a cooling section gas outlet is formed in the upper part of the cooling section and is communicated with an analysis section gas inlet formed in the lower part of the analysis section; an analysis section gas outlet formed in the upper part of the analysis section is communicated with a preheating section gas inlet formed in the lower part of the preheating section; a preheating section gas outlet formed in the upper part of the preheating section is emptied; the first buffering section is provided with a material distribution and gas guide structure and an analysis gas outlet; the analysis gas outlet is connected with an acid preparation system through a fan. The invention also provides an analysis method of the analysis tower. The analysis tower is simple in structure, high in heat exchange efficiency and low in energy consumption; regeneration of desulfurized active coke is realized; furthermore, high-concentration SO2 can be obtained, and recycling of sulfur is realized.

The invention relates to a precise two-degree of freedom micro-displacement positioning device, belonging to a micrometric displacement operating system. In order to solve the defects of the prior art, including the problems that the positioning precision is low and interference between different degrees of freedom is large, the device comprises an objective table, a base plate, four nested parallelogram flexible link mechanisms with same shapes and structures, four groups of parallelogram guide mechanisms with same shapes and structures, a first piezoelectric actuator and a second piezoelectric actuator. The precise positioning device has the beneficial effects that a bridge type amplification mechanism is eliminated, a driving mode is changed, and the positioning precision is improved as the piezoelectric actuators are adopted for driving directly; two different flexible link mechanisms are adopted for the device, so as to realize the mutual independent movement of each degree of freedom; as no disturbance exists between the degrees of freedoms, the positioning precision is further improved; and furthermore, the whole structure is completely symmetric except for the piezoelectric actuators, thereby ensuring that the positioning precision of the whole device is not affected during change of the outside temperature conditions.

The invention provides a relative navigation close range tracking method and system for space noncooperative target capturing. According to the relative navigation close range tracking method and system for space noncooperative target capturing, a kinematical equation of a free-floating space robot system is utilized to deduce and obtain a path planning method for a mechanical arm capturing a moving target, the relative speed and relative posture of the tail end of the mechanical arm and the target are taken as input, joint angle commands controlling the mechanical arm to move can be calculated and obtained, so that capturing operations of the mechanical arm on the moving target can be realized. By means of the relative navigation close range tracking method, in the process of close rangerelative navigation of a space robot on the moving noncooperative target, path planning for the relative position and posture of the tail end of the mechanical arm and the target and continuous inverse kinematics solution from Cartesian space to mechanical arm joint space can be independently realized, and especially for redundant mechanical arms, posture undisturbed planning for a base seat relative to inertial space can be realized.

The invention discloses a ternary composite repairing agent, containing iron oxide, humus and reducing bacteria thereof, for in-situ remediation of organic pollution in soil and sediment. The repairing agent of the invention is prepared by carrying out fermentation enlarge culture on ferric reducing microorganism and mixing with iron oxide and humus uniformly. The microbial repairing agent of the invention can accelerate degradation of organic pollutants under an anaerobic condition and has good in-situ remediation effect on organic pollution soil and black and stink sediment. Raw materials are all natural substances and environment-friendly, and cause no secondary pollution. The microbial repairing agent of the invention is simply applied without excavating or disturbing original environment or oxygen, requires low work amount and small cost, and is apt to large-scale usage. The preparation method of the repairing agent of the invention can obtain a microbial repairing agent product simply and fast.

The invention discloses a water-locking type unconsolidated formation sampling drilling tool. The drilling tool comprises a drill bit, an external cylinder, a coring tube, a piston, a bin base and a plugging switch, wherein the drill bit is connected to the lower end of the external cylinder; the coring tube is arranged in the external cylinder; the piston is arranged in the coring tube; the upper part of the coring tube is connected with the bin base which is connected with the coring tube in a sealed mode; a through hole which is connected with the coring tube is formed in the bottom surface of the bin base; the plugging switch is arranged in the through hole; and a water hole is formed in the wall of the bin base. The water-locking type unconsolidated formation sampling drilling tool has a simple structure, can efficiently sample unconsolidated and broken formations such as sandy soil layers, soil layers, gravel-containing layers and the like in a high-quality way, has a high sampling rate, particularly can preserve the sequence state of the formations well, and is suitable for environmental sampling, geotechnical investigation and surveying sampling and the like of the unconsolidated and broken formations and the like, and the obtained samples are undisturbed and are high in fidelity.

The invention discloses a gas-solid fluidized bed sorting machine based on pulse airflow. The gas-solid fluidized bed sorting machine mainly comprises a sorting groove, an air distributing plate, a dedusting cover and a support, wherein the tail end of the sorting groove is provided with a light product material discharge wheel; the tail end of a rear air distributing chamber is provided with a rear heavy product material discharge wheel; the tail end of a front air distributing chamber is provided with a front heavy product material discharge wheel; the bottom parts of the rear air distributing chamber and the front air distributing chamber are respectively provided with a rear air tube and a front air tube; the rear air tube and the front air tube are connected with an air inlet tube through a three-way connector; and the air inlet tube is provided with a pulse airflow generator and an airflow quantity regulating valve in sequence. According to the invention, the pulse airflow is introduced into a gas-liquid fluidized bed, materials are conveyed forward relying on the oblique angle of the sorting groove and the effect of the pulse airflow; floating materials and sediment materials are respectively discharged through the light product material discharge wheel and the heavy product material discharge wheels, and the medium circulating quantity is reduced effectively; and the height of a front support leg can be adjusted, the front support leg can be used for regulating the oblique angle of the sorting groove, the regulation of coal conveying speed and sorting time can be realized.

This invention discloses a method for piling including 1, sinking a steel fender drum, 2, holing, 3, pulling up the steel fender drum. After the concrete is filled, a vibration hummer is used to pull the steel fender up first and then stops working when a hoist can pull up the steel fender directly. This invented fender drum is composed of at least two sections of drum units, connection ears are distributed on the outside walls of both ends and those on the two adjacent units are symmetric and connected by bolts.

The invention provides a joint-crossed hidden reinforcement structure in the middle of a traditional wooden building and a production method and belongs to the traditional wooden building protection engineering technical field. Joint-crossed connecting drawing rods which are used for reinforcing the middle of the traditional wooden building are arranged inside beam-column joints in a hidden mode, beam-column components are connected into a whole, and accordingly the anti-pulling capability and the stiffness of the joints can be improved. An epoxy resin adhesive is poured into the chiseled position of the surface of a wooden beam and accordingly the component appearance can recover. According to the joint-crossed hidden reinforcement structure in the middle of the traditional wooden building and the production method, the bearing capacity of the joints can be improved and accordingly the protection can be provided for the traditional wooden building and the effect on the structure appearance due to the previous external reinforcement method can be avoided.

This invention relates to a method display device and display method. Wherein, the device comprises a master-control module to real-time adjust the display effect as the received parameters, and a photosensitive module to detect the exterior ray strength and send data to the pretreatment module that can then decide display parameters for the master-control module. This invention ensures ideal display effect without user any operation.