102 results about "Quick Test" patented technology

The invention discloses a testing device and a testing method for a permeability coefficient characteristic curve of wicking geotextile, and belongs to the technical field of permeability coefficient testing. A to-be-tested wicking geotextile and a soil layer are laid between an upper plate body and a lower plate body of a test unit of the test device; the two sealing covers are located at the two ends of the upper plate body and the two ends of the lower plate body respectively. Each of the first hollow column and the second hollow column comprises a hollow column section positioned above the upper plate body and below the lower plate body, the hollow column sections distributed up and down are communicated with a gap between the upper plate body and the lower plate body, and each hollow column section is filled with a soil body and forms a test soil column; the load output end of the load applying unit is used for applying a vertical load to the top of the test soil column and the upper plate body. The test device disclosed by the invention can really simulate the occurrence condition of the wicking geotechnical cloth in the roadbed engineering; the testing method based on the testing device can rapidly test the permeability coefficient of the wicking geotextile, and a characteristic curve of the permeability coefficient of the wicking geotextile is obtained.

The embodiment of the invention provides a device and a method for rapidly measuring the viscosity of tobacco flavors and fragrances, and relates to the field of tobacco flavors and fragrances. The device for rapidly measuring the viscosity of the tobacco flavors and fragrances comprises a machine body, a testing platform, a containing cup, a viscosity testing assembly, a cleaning cup and an air blowing assembly, the test platform is arranged on the machine body, the number of the accommodating cups is at least two, the cleaning cup and the accommodating cups are respectively arranged on the test platform, and a heating device capable of adjusting temperature is arranged at the bottom of each accommodating cup; the viscosity testing assembly comprises two groups of viscosity testing rods, and the air blowing assembly is used for blowing air to the viscosity testing rods. The viscosity measuring rods are cleaned, so that the influence of residual substances on the accuracy of the next test is effectively avoided, and in the test process of one group of viscosity measuring rods, the other group of viscosity measuring rods can be cleaned, so that the test time can be effectively shortened, and the effect of'fast test 'is realized.

The invention belongs to the technical field of heat exchangers, and particularly relates to a testing system of a phase change energy storage heat exchanger. The test system comprises a water storage unit, a heating unit, a cooling unit and a phase change energy storage heat exchanger unit. The test system can quickly test multiple alternate cooling and heating circulation working conditions such as same-direction, reverse and horizontal flow of the cooling and heating loop. In addition, the outlet temperature of the fluid working medium of the phase change energy storage heat exchanger can be accurately obtained in real time, and the heat storage capacity of the phase change energy storage heat exchanger can be accurately verified. Besides, basic data are provided for engineering design of the phase-change energy storage heat exchanger, the design condition of the phase-change energy storage heat exchanger can be evaluated, the optimization direction of application of the phase-change energy storage heat exchanger in the aerospace field is fully known and mastered, design errors of the phase-change energy storage heat exchanger are reduced, and the design efficiency is improved. And the technical development of application of the phase change energy storage heat exchanger to the high-power space load is promoted.

The utility model aims to provide the tensile testing device, so that the fracture times of an object to be tested under different stress amplitudes can be quickly tested; in order to achieve the purpose, the tensile testing device comprises a frame, a fixed pulley is rotatably mounted at the top of the frame, a rope matched with the fixed pulley is arranged on the fixed pulley, and the rope bypasses the top of the fixed pulley; the two ends of the rope extend downwards along the two sides of the fixed pulley respectively, so that one end of the rope is connected with a sliding block, a driving device controls the sliding block to reciprocate in the sliding rail in the direction of the rope, and the other end of the rope is connected with an object to be detected through a clamp. The rope is provided with an elastic section and a force measuring device, the frame-shaped frame is provided with a distance measuring device and a counter, the distance measuring device is used for monitoring the deformation quantity of the object to be measured, and the counter is used for recording the repeated movement times of the sliding block.

The invention discloses a testing device, which comprises a platform, a supporting seat, a pressure applying rotating shaft and a driving part, and is characterized in that the platform is provided with a fixing part, and the fixing part is used for fixing an axial air foil bearing; the supporting seat is located above the platform and installed on the platform, a shaft hole is formed in the supporting seat, and the shaft hole is located over the fixing part and penetrates through the supporting seat in the vertical direction; the pressing rotating shaft is movably arranged in the shaft hole in a penetrating mode in the vertical direction, and the bottom of the pressing rotating shaft is used for being attached to the axial air foil bearing in a normal state; the driving part is in driving connection with the pressure-applying rotating shaft to drive the pressure-applying rotating shaft to rotate. According to the testing device, the axial air foil bearing can be rapidly tested, and the production requirement of large-scale mass production is met.

The invention relates to the technical field of washing machine inner barrel testing, and discloses a washing machine inner barrel dynamic balance rapid testing tool which comprises a base and a roller. One end of a hydraulic cylinder is fixedly connected with a first rack, one side of the first rack is in meshed connection with a connecting gear, and one side of the connecting gear is fixedly connected with a threaded rod; the outer portion of the threaded rod is in threaded connection with a connecting base, the inner side of the connecting base is fixedly connected with a detection ring, the inner side of the detection ring is fixedly connected with two pressure sensing detection assemblies, a second motor is started, a first gear drives a second gear to rotate, the second gear drives a roller to rotate through a rotating shaft, a prism block and a connecting shaft, and then a hydraulic cylinder is started; the hydraulic cylinder drives the first rack to move back and forth, the first rack moves to drive the connecting gear and the threaded rod to rotate, the threaded rod drives the connecting seat to move, and the detection ring drives the pressure sensing detection assembly to move, so that the dynamic balance of the roller can be rapidly tested.

The utility model relates to the technical field of sensor installation, in particular to a rapid test device for infrared over-temperature monitoring protection, which comprises an installation frame, the installation frame comprises a rotating rod, the first end of the rotating rod is used for installing an infrared sensor, the second end of the rotating rod is rotatably installed on a belt frame on the side edge of a belt conveyor through a rotating shaft, and the rotating shaft is vertically arranged; the rotating rod is connected with the first end of the pull rod, the second end of the pull rod is detachably connected with the belt frame, so that the second end of the pull rod and the belt frame have two connection states of connection completion and disconnection, and the second end of the pull rod and the rotating shaft are located on the belt frame on the same side of the belt conveyor; when the second end of the pull rod is connected with the belt frame, the rotating rod and the belt frame are relatively fixed. According to the utility model, the rotating rod can be flexibly switched between a fixed state and a rotating state, the problem that a heat source is difficult to stably align at a sensor emission hole in a traditional test is solved, and the test efficiency is greatly improved.

The invention discloses a damping fluid outflow coefficient rapid testing device capable of simulating driving force of an initiating explosive device. The air cylinder piston can amplify the airflow pressure and transmit the airflow pressure to the donor piston within millisecond, so that the main characteristics of the driving force on the donor piston are basically consistent with those of the driving force of the initiating explosive device, and the effect of simulating the driving force of the initiating explosive device is achieved; the donor piston pushes the damping liquid to pass through the oil passing sheet to simulate the damping effect process, and the change of the length-diameter ratio of the central oil passing hole can be realized by replacing the oil passing sheet, so that the damping effect of the oil passing holes with different length-diameter ratios can be simulated and tested at the initial stage of development; the movement speed of the acceptor piston is consistent with the flow speed of the damping fluid after passing through the oil passing sheet, and the movement speed of the acceptor piston is indirectly obtained based on a photoelectric target signal. Therefore, the outflow coefficients under different temperatures, different damping fluid types, different overflowing hole structure sizes and different driving forces can be obtained, and the damping effect under different working conditions can be rapidly evaluated.

A kind of quick test device of tunnel frost heaving damage characteristics, including device box, external freezing system, internal freezing system, tunnel segment and position adjusting system, the external freezing system is located in device box and is tangent with four faces of device box, the tunnel segment is located in external freezing system, the soil body between external freezing system and tunnel segment is filled, the position adjusting system is located in the front and rear ends of device box, the internal freezing system is located in tunnel segment, the internal freezing system is connected with the position adjusting system, the soil body between tunnel segment and internal freezing system is filled, and soil pressure gauge, displacement meter and moisture content probe head are arranged in soil body area.A kind of quick test method of tunnel frost heaving damage characteristics is provided.The present application can quickly test the adverse effects of point-like uneven frost heaving on internal force and deformation of tunnel, and is simple, convenient, low in cost and short in time.

The invention discloses a simple test method for the dynamic and static stiffness ratio of a sleeper cushion, and belongs to the technical field of detection. The method for rapidly detecting the dynamic and static stiffness of the sleeper pad comprises the following steps: preparing a sample, enabling the structure of the sample to be consistent with that of the sleeper pad, reducing the size in the direction vertical to the direction of applying a test load according to a proportion, and measuring the static stiffness and the dynamic stiffness of the sample by using a measuring instrument, thereby obtaining the ratio of the dynamic stiffness to the static stiffness of the sleeper pad. The dynamic and static stiffness ratio of the sleeper cushion is measured through the method, and the detection requirement is greatly reduced.

The embodiment of the application discloses a kind of test verification method, device and equipment of engine air passage, obtain the casting model of engine cylinder cover, and input to the casting simulation software to obtain the deformation condition of casting model.According to the deformation condition, obtain the correction model of engine cylinder cover, and print the engine air passage entity model in engine cylinder cover correction model using selective laser sintering printing technology.The entity parameter of entity model is obtained and compared with design parameter.When the comparison result is that entity parameter is inconsistent with design parameter, the casting process of casting model is adjusted according to the result to adjust the casting model or adjust the engine cylinder cover correction model.The application predicts the deformation condition of cylinder cover casting process based on casting simulation software, and can quickly test the performance index of air passage while ensuring the consistency of size through printing technology, improve the accuracy and efficiency of air passage development.

The present application discloses an automatic gain control test circuit for an infrared receiver chip, which relates to the field of electronic technology and includes a charge pump circuit and a charge and discharge logic control circuit. The charge pump circuit includes a fast charge control circuit, a first current mirror circuit, a charge pump charge and discharge switch circuit, a second current mirror circuit, and a capacitor charge and discharge circuit. The fast charge control circuit includes an OR gate and a PMOS switch, and the charge and discharge logic control circuit includes a startup circuit, a discharge logic control circuit, and a charge logic control circuit. By improving the fast charge control circuit, the capacitor charge and discharge circuit, the discharge logic control circuit, and the charge logic control circuit, the improved automatic gain control circuit can quickly test the AGC circuit after tape-out through two modes: current acceleration and capacitor acceleration, greatly reducing test time and cost, and reducing test difficulty.

The present invention provides a device for quickly testing the contact resistance of a DC contactor contact, which relates to the technical field of DC contactors and includes: an insulating docking cap, a conductive contact pin, an insulating movable plate, a conductive vertical rod, a reset spring, an insulating pressure arm, and an insulating transmission connecting rod; the insulating docking cap is connected to the top of the DC contactor, and two conductive contact pins are connected inside the insulating docking cap. Under the influence of the thrust of the reset spring, the insulating movable plate of the present invention drives the two conductive vertical rods downward synchronously, and the conductive vertical rod drives the conductive contact pins to move inward, so that the inner ends of the conductive contact pins are in close contact with the contacts of the DC contactor, and the contact resistance of the DC contactor contacts can be tested by a DC resistance tester. This solves the problem that the DC resistance tester is currently commonly used in combination with a power clamp to complete the test. Since the two contacts of the DC contactor are close to each other, the two power clamps are very likely to contact each other, resulting in power connection, which interferes with the test operation.

The utility model discloses a quick assembly guide rail mechanism of a coke quenching test device, which comprises a mounting surface and a guide rail body arranged on the inner side of the mounting surface, a sliding block body is mounted on the inner side of the guide rail body, the upper side of the sliding block body is connected with a mounting rack, and a test device body is mounted on the upper side of the mounting rack; the sliding block further comprises a second driving motor which is installed in the sliding block body. The rapid assembly guide rail mechanism of the coke quenching test device can be conveniently and rapidly assembled and connected with the test device in the use process, so that an operator can easily and rapidly install the test device on the upper side of the guide rail mechanism, the disassembly and assembly use efficiency of the device is prevented from being influenced, the disassembly and assembly labor intensity of the operator is reduced, and the production efficiency is improved. And meanwhile, a stable movement driving part is arranged in the device, so that the device can be paused at any part in the process of carrying the test device to move, the use stability of the device is improved, and a better use effect is achieved.

The application discloses a device and method for testing water cooling effect of a motor, which comprises a test base, a test device arranged on the test base and a water cooling effect quick detection scheme, the test device comprises a motor to be tested, a water cooling circulation system and a magnetic powder brake, the motor to be tested is arranged between two motor support frames and is spaced apart from the test base, the water cooling circulation system is arranged on one side of the motor to be tested and is connected with a water channel shell pipeline outside the motor to be tested, and the magnetic powder brake is arranged on the other side of the motor to be tested and is provided with a torque sensor between the magnetic powder brake and the motor to be tested, the device does not need a complete packaging shell when testing the water channel effect, only needs a water channel partial shell, has a quick test installation process, greatly saves test cost, shortens a water channel effect test period and has strong practicability.

The invention discloses an infrared camera field angle testing device and a testing method thereof, and belongs to the technical field of testing. The device and the method mainly solve the problems that an existing testing device and method of a common camera are not suitable for testing the field angle of an infrared camera and the field angle cannot be visually read. The device is mainly characterized in that the infrared light source, the chopper and the slit are connected with the fixed bracket through the screw rod and the standard screw hole in sequence; the fixed support is installed on the rotary table, and a shaft angle encoder is arranged on the rotary table. The sample table is fixed on the adjusting bracket adjacent to the rotary table through a standard screw hole, and the sample table is used for placing an infrared camera to be tested; the control mechanism is electrically connected with the shaft angle encoder, a rotation driving mechanism of the chopper and a rotation driving mechanism of the rotary table. The device and the method have the characteristics of simple equipment structure, low cost, simplicity, convenience and rapidness in test operation, visual field angle measurement and high accuracy, reliable data are provided for application of the infrared camera, and a reference basis is provided for design and manufacturing of the infrared camera.

The utility model discloses a machine case air tightness test device, relates to the technical field of air tightness detection, and provides the following scheme aiming at the problem that existing customized equipment with specific machine case size, shape and special test requirements needs to be specially customized: the machine case air tightness test device comprises a main frame, the main frame comprises a square frame, the interior of the square frame is connected with a lifting mechanism; a flat plate is connected above the four lifting mechanisms; an air hole is formed in the flat plate, and a case to be tested is placed between the flat plate and the main frame; according to the utility model, the structure is novel, the height of the upper sealing top can be adjusted according to the size of a to-be-tested case through the cooperative connection of the fixed rod and the movable rod, and the test requirements of cases with different sizes can be met; the four air cylinders drive the flat plate to ascend and descend and cooperate with the square frame above to quickly seal the case to be tested, so that quick testing is facilitated, and the testing efficiency is improved.

A three-phase asynchronous motor winding head and tail end tester comprises a box body (1), and a power supply module used for supplying power, a binding post module used for providing an equipment interface, a voltmeter display unit used for displaying detection data and an operation conversion control unit are arranged in the box body (1). The device has the advantages of improving the test efficiency, remarkably shortening the test time due to the quick test function, and improving the motor maintenance and production efficiency. A hardware structure and an induced voltage processing algorithm are optimized, so that the reliability of a test result is ensured, and motor faults caused by misjudgment are reduced.

The utility model discloses a mining drilling machine testboard comprising a test pedestal which is internally provided with a slide rail groove; the detection platform is arranged at one end of the test base and located outside the sliding rail groove; the drilling machine mounting seat is arranged in the sliding rail groove in a sliding manner; the reinforcing supporting seat is arranged in the sliding rail groove in a sliding manner and is positioned between the drilling machine mounting seat and the detection platform; and the adjusting screw rod is arranged in the reinforcing supporting seat and is used for adjusting the height of the contact end of the reinforcing supporting seat. According to the utility model, the slidable drilling machine mounting seat and the reinforcing supporting seat are matched to adjust the lifting of the screw rod, so that the length, height and other dimensions of most drilling machines can be matched, the alignment operation is simplified, the plant site requirements are reduced, and the rapid test of the drilling machines is facilitated; the sliding base is designed to be of a structure with a buffer groove and a buffer piece, stress in the testing process can be effectively removed, equipment is protected, and the influence on the testing result is very small.

The utility model relates to a basic friction angle field testing device suitable for rock mass structural surfaces in any shapes, which comprises a sample loading rack, and the sample loading rack comprises a hollow base and a regular round hole-shaped steel plate which is arranged on the hollow base and can turn over relative to the hollow base. A plurality of round holes are formed in the regular round-hole-shaped steel plate, detachable plug pin structures are arranged in the round holes, and a locking space formed by the plug pin structures is used for limiting a sample lower disc in any shape. The rock mass structural plane basic friction angle testing device is reasonable in design, simple in structure and convenient to use, solves the problems that an existing rock mass structural plane basic friction angle testing device is only suitable for rock mass samples with specific shapes and sizes, the samples are time-consuming and difficult to machine, and rock mass structural planes with any shapes cannot be rapidly tested, and meanwhile can flexibly adjust the position of the limiting baffle to achieve rapid testing. Therefore, the sliding termination distance of the sample upper disc is adjusted, and flexibility is high.

This disclosure relates to the field of cloud technology, and in particular to a third-party access debugging method, apparatus, device, and storage medium. The method includes: responding to a received third-party application access test request, parsing pre-inputted environment-related variable parameters into an environment-related variable array; generating HTML code based on the header and footer information of pre-constructed HTML code and JavaScript code used to write the environment-related variable array; running the HTML code in a local application; when the running result is consistent with a preset result, editing and debugging the HTML code; when the running result corresponding to the debugged HTML code meets preset conditions, saving the debugged HTML code; and when the HTML code can be successfully run in the local application, debugging the HTML code to generate the code required for the third-party application to access the local application, so as to quickly test the local application.

The utility model discloses an intelligence hydrostatic pressure tester, including box, upper pressure disc, lower pressure arm, drive structure, water tank, water inlet pump, pressurized water pump, light and camera, the front of box is equipped with pressurized cavity, water tank all install in the box, the water inlet pump and pressurized water pump, the both ends of water inlet pump are connected with the export of water tank and the import of pressurized water pump respectively, the export of pressurized water pump is connected with pressurized cavity, lower pressure arm rotatoryly arranged on the box, upper pressure disc installs in the front of lower pressure arm, drive structure installs in the box, and its drive end is connected with the rear end of lower pressure arm and drives lower pressure arm to rotate in the box to make upper pressure disc press test sample on pressurized cavity, light and camera install on the box. The utility model can realize full -automatic quick test and remote monitoring, and effectively improved work efficiency.

The application discloses a microwave integrated circuit scattering parameter fast test evaluation circuit and an evaluation method, and the evaluation circuit comprises a host computer, an automatic auxiliary device, a vector network analyzer, a test fixture A, a test fixture B and a standard microwave integrated circuit. The application can meet the fast, efficient and stable test application requirements of the microwave integrated circuit scattering parameter "just-measured and just-obtained", effectively reduce the cost, time and instrument resource invalid occupation caused by the calibration of a large number of customized adaptive test fixtures and corresponding operation complexity, large operation amount, calibration and error correction and the like, and improve the test application efficiency. The application reduces the hardware and software resource consumption and occupation in the test evaluation process, and is convenient to integrate the function into the production line comprehensive capacity judgment of the microwave integrated circuit production and manufacturing, so as to meet the low-cost, high-efficiency batch production and manufacturing application requirements and integrated measurement and control technical requirements of the microwave integrated circuit.

The application discloses a kind of battery module safety regulation test device and method, wherein, test device includes first probe mechanism, second probe mechanism, battery module to be measured, battery module tray and industrial computer;First probe mechanism is provided with multiple groups of first probe;Second probe mechanism is provided with side wall probe and shell probe;The positive pole of the battery module to be measured is connected with its corresponding positive pole column;The battery module to be measured is loaded on the upper surface of battery module tray;Industrial computer controls the electrical connection or electrical disconnection between first probe, and test voltage is applied between the first probe that is electrically disconnected, test voltage is applied between the side wall probe and the first probe that is electrically disconnected, test voltage is applied between the shell probe and the first probe that is electrically disconnected;The application realizes the automatic fast test of the insulation voltage resistance performance of power battery module assembly, reduces test cost, improves test efficiency, and is suitable for batch detection.

The utility model relates to the technical field of chemical and oil and gas ship building, in particular to a marine liquid cargo tank PV valve testing device, which comprises a base, a connecting piece, a pressure vacuum device and a liquid level display unit, and is characterized in that the base comprises supporting legs and a mounting plate, the supporting legs support the mounting plate, the mounting plate is of a rectangular structure, and a mounting position is arranged on the mounting plate; the installation position is composed of a plurality of kidney-shaped holes arrayed along the circumference, and the extending square of the kidney-shaped holes penetrates through the circle center of the circumference. The connecting piece installs the PV valve to be tested to the installation position; the pressure vacuum device is arranged on one side of the base and is connected with the PV valve to be tested through an air inlet pipe; and the liquid level display unit is arranged on one side of the base and is connected with the PV valve to be detected through a liquid level pipe. By means of the kidney-shaped holes and the connecting pieces, quick disassembly and test installation of PV valves with different drift diameters can be achieved, universality is high, meanwhile, the structure is simple, use and operation are convenient, and quick tests of the PV valves with different drift diameters are effectively achieved.

The utility model discloses an automatic testing device for a sensor, which comprises a base, a control system, a linear power mechanism, a first fixing piece and a second fixing structure, the linear power mechanism comprises a linear power source and a sliding seat, and one side of the sliding seat is provided with a metal induction sheet for triggering a groove type sensor. A clamping structure for clamping a sample tube is arranged on the sliding seat; and an original point sensor for monitoring the original point position of the sliding seat is arranged at one end part of the base. According to the utility model, the groove-type sensor is fixed by using the first fixing piece, and the position of the metal induction sheet is adjusted by using the linear power source, so that the rapid test of the groove-type sensor can be realized; according to the utility model, the sample tube is fixed by utilizing the clamping structure, the reflection sensor is fixed on the second fixing structure, and the front, back, left and right sensing areas and repetition precision of the reflection sensor on the sample tube can be determined by adjusting the mounting position of the reflection sensor, so that the reliability and accuracy of a detection result are improved, and a basis is provided for model selection of sensors on an instrument.

This invention relates to the field of pipeline life testing, specifically to a multi-station rapid fatigue life testing device for corrugated pipe compensators. The device includes a testing base with a base plate slidably connected to it. A fixing structure is mounted on the testing base, and a testing frame is fixedly mounted on the testing base. Multiple visual sensors are mounted on the testing frame, and a hydraulic telescopic rod is mounted on the testing frame. This invention uses the fixing structure to center and fix the compensator at the bottom. When the hydraulic telescopic rod operates, and the pressing plate applies pressure to the compensator under the drive of the hydraulic telescopic rod, the pushing component drives the positioning block to extend from the rectangular groove and abut against the upper flange of the compensator in the middle, thereby achieving stable positioning of the compensator. This positioning and fixing method, using both upper and lower components, prevents displacement during testing and ensures the accuracy of the test data.

This utility model relates to the technical field of pile foundation skin friction testing, and discloses a device for rapidly testing the negative skin friction of pile foundations in high-fill mountainous areas. The device includes backfill soil, beneath which lies a strongly weathered rock layer, and below that, a moderately weathered rock layer. A data acquisition system is installed on the left side of the top surface of the backfill soil, and a loading oil pump is installed on the right side. Utilizing the end resistance from the rock foundation load test to provide the reaction force, combined with data from pile stress sensors, the distribution characteristics of negative skin friction on the pile side in high-fill areas can be rapidly and quantitatively analyzed, providing a measured basis for pile foundation bearing capacity assessment and engineering design. This method uses the upward displacement of the pile under the action of a load cell to replace the settlement of the foundation soil, thereby efficiently testing the negative skin friction, significantly reducing testing costs and saving testing time.

The application relates to a kind of semi-physical simulation test system development methods for fuel cell controller, including fuel cell controlled object model, FCU-HIL interactive I / O electrical interface model library, HIL semi-physical simulation test environment software and hardware configuration development process.The application can simulate various working conditions and faults in the operation process of fuel cell, quickly test and verify control strategy, and improve the test efficiency of fuel cell control strategy and controller.

The utility model provides an inhaul cable rapid testing device, which comprises a brake mechanism, a gear mechanism and a fixing mechanism, and is characterized in that the brake mechanism comprises a first base, a mounting seat and a pedal and is used for simulating the structure of a brake pedal in a vehicle; the gear mechanism comprises a second base and a gear frame and is used for simulating the structure of a gear end in the vehicle; in this way, the actual working condition of the inhaul cable in the using process is simulated, and the incoming material inspection efficiency and accuracy of the inhaul cable are improved. The fixing mechanism comprises a fixing base, a limiting block, a clamp and a guide column, the fixing base is installed on the second base, and the other end, namely the end connected with the gear end, of the inhaul cable is fixed; the limiting block is located in the gear frame and used for keeping the clamp and the guide column stable relative to the gear frame in the stretching process. An operator can connect the other end of the inhaul cable with the guide column, and the guide column is stretched forwards and backwards by pulling the clamp, so that the other end of the inhaul cable is clamped and fixed.