Land test device for long-distance scientific investigation winch
By designing components such as variable frequency controlled tooling pulling winches and load test benches, the actual working conditions of long-distance scientific expedition winches are simulated, solving the problem of onshore verification and achieving efficient test verification and improved equipment reliability.
Patent Information
- Application Number
- CN202422916607.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-11-27
AI Technical Summary
Existing technology is unable to conduct complete and effective verification of long-distance scientific research winches on land, which makes subsequent product loading and commissioning difficult, and insufficient verification affects the delivery success rate.
A test system is designed, which includes a variable frequency controlled tooling pulling winch, a load test bench, a guide pulley assembly, and a special tooling part. The system simulates the actual working conditions of a long-distance scientific expedition winch and accurately controls the cable retraction and release conditions of the winch through a variable frequency controller.
The simulation verification of the full-length cable-laying function, speed and load characteristics of the long-distance scientific expedition winch has been realized, which has improved the test verification efficiency, reduced the difficulty of debugging the product after leaving the factory, and improved the reliability of the equipment.
Smart Images
Figure CN223376947U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of winch testing in a deep-sea scientific research support system, in particular to an onshore test verification device for a long-distance traction-type scientific research winch. Background Art
[0002] As marine science and technology advance toward ever-deeper depths and greater reach, higher demands are being placed on the scientific research support systems essential for deep-sea exploration. As a key component of these systems, winches are primarily used for deploying and retracting equipment in various scientific expeditions, including marine geological surveys and sampling, hydrographic surveys, and the deployment and retraction of various underwater robots. Therefore, the performance of the winch system largely determines the smoothness and success of the expedition process.
[0003] At present, the deep-sea scientific research winches used on my country's mainstream scientific research vessels are all traction-type structures. Since the working medium of long-distance traction-type scientific research winches is generally an extra-long cable (5,000 meters to 10,000 meters), the actual operation process time will generally last more than 4 hours. In order to verify the working stability and reliability of the scientific research winch in the entire operation process, onshore tests are generally required. However, due to the particularity of long-distance scientific research winches, the test bench stroke of conventional onshore winch test sites is generally less than 20 meters, and the effective stroke will be even shorter. If a pulling winch is used for loading, it will not be able to meet the simulation requirements of the actual working load of the winch, resulting in the inability to conduct a complete and effective verification of the scientific research winch, which will greatly increase the difficulty of subsequent debugging work after the product is shipped. Moreover, due to the lack of sufficient verification, the product is more likely to have problems, which will affect the delivery of the entire ship.
[0004] In view of this, there is a need for an onshore test device dedicated to long-distance scientific expedition winches, which can conduct complete and effective verification of the product under factory conditions. Utility Model Content
[0005] The purpose of this utility model is to provide an onshore test device for long-distance scientific research winches. The test system device is composed of a variable frequency controlled pulling tool winch, a load test bench guide pulley assembly and other special tooling parts. The actual working conditions of the test winch at sea can be simulated to verify the full-length cable-arranging function and speed, load and other characteristics of the long-distance scientific research winch.
[0006] To achieve the above-mentioned purpose, the technical solution of the present invention is: an onshore test device for long-distance scientific research winches, comprising a load test bench, a tooling winch, a guide pulley assembly, a test winch and a test cable, the load test bench being placed in the load test bench area outside the tooling winch, the tooling winch being placed in the tooling winch installation area, the guide pulley assembly being placed in the guide pulley assembly installation area between the tooling winch installation area and the test winch installation area, the test winch being placed in the test winch installation area, one end of the test cable being connected to the test winch, and the other end being connected to the load test bench or the tooling winch through the guide pulley assembly; after the tooling winch and the test winch are connected and tensioned through the test cable, the forward and reverse rotation of the tooling winch and the output torque of the motor are precisely controlled by the frequency conversion controller, thereby simulating the actual cable-retracting and -releasing working conditions of the test winch.
[0007] Furthermore, the load test bench consists of a connecting shackle, a test wire rope, a bottom guide pulley, a portal structure, a top guide pulley, an anti-rotation hook, weights and a weight tray. The portal structure is the main body of the load test bench, which is vertically installed on the horizontal ground and reinforced with struts; the bottom guide pulley is installed in front of the bottom of the portal structure, and the center line of the guide pulley coincides with the center line of the portal frame; the top guide pulley is installed on the top crossbeam of the portal frame, and the center line of the guide pulley coincides with the center line of the portal frame; one end of the test wire rope is connected to the connecting shackle, and the other end passes through the bottom guide pulley and the top guide pulley in sequence to reach the bottom of the portal structure and is connected to the anti-rotation hook through the shackle; one end of the anti-rotation hook is connected to the test wire rope, and the other end is connected to the weight tray through the shackle, and several weights are evenly stacked on the weight tray.
[0008] Furthermore, the portal structure adopts a truss structure, and support rods are welded in front and behind the left and right side columns. The bottom guide pulley and the top guide pulley are made of integral steel forging materials and self-lubricating bearings, which effectively improve the service life of the platform; the anti-rotation hook is composed of a fixed hook, an axle seat and a rotating shaft hook from top to bottom. After the shaft head of the rotating shaft hook is inserted into the axle seat, it can rotate freely relative to the axle seat. The fixed hook and the axle seat are fastened with bolts. After the weight is lifted off the ground, it will produce a certain rotation by itself, thereby driving the rotating shaft hook of the anti-rotation hook to rotate.
[0009] Furthermore, the weight tray adopts a circular chassis with a cylindrical upright pole welded vertically at the center of the circle, and the pole head is provided with an ear plate for connecting with the anti-rotation hook; the weight adopts a circular disc structure with a through hole in the center. During the actual test, the corresponding number of weights are configured according to the test requirements of the test winch, and the weights are passed through the center hole in turn through the upright pole of the weight tray and stacked neatly on the weight tray. After that, one end of the rotating shaft hook of the anti-rotation hook is connected to the ear plate head of the upright pole of the weight tray to complete the test weight configuration work.
[0010] Furthermore, the tooling pulling winch is composed of a pulling drum, a clutch, a motor, a coupling, a disc brake, a reducer, a drum bracket, a base, an auxiliary drum, a frequency conversion control cabinet and a starting control cabinet. The tooling pulling winch adopts frequency conversion drive control, and the torque and speed of the motor are controlled by the starting control cabinet and the frequency conversion control cabinet; the motor output shaft and the reducer input shaft are connected through a coupling with a brake disc, and the disc brake is installed on one side of the coupling, and the braking force is generated by clamping the coupling brake disc; the reducer output shaft is a double output shaft at both ends A and B. The A end is connected to the pulling drum through the clutch B, and the B end is connected to one end of the auxiliary drum. The C end of the auxiliary drum is connected through the clutch A. It is connected to the pulling drum A, and the center line of the pulling drum B, the reducer output shaft, the auxiliary drum center line and the pulling drum A center line are kept coincident; the starting control cabinet is used for power switch and filtering, and the frequency converter control cabinet door is provided with the frequency converter start and stop switch, forward start and reverse start buttons, speed adjustment knob, emergency stop button and reset button; the drive motor is a variable frequency control lifting motor with a built-in encoder for frequency converter closed-loop control, the reducer uses a box-type structure with a single input and double solid shaft output, and the disc brake generates braking force by clamping the brake pads of the coupling, which is used for parking brake of the tooling pulling winch, and the disc brake is a disc brake that opens when powered on and brakes when powered off.
[0011] Furthermore, when clutch B is closed, the motor speed and torque are transmitted to the clutch B at the A end through the reducer, further driving the tensioning reel B to rotate, forming the speed and torque on the tensioning reel B; the auxiliary reel is used to assist in the dragging of the test cable and other auxiliary functions during the test preparation stage. When clutch A is closed, the motor speed and torque are transmitted to the B end through the reducer, and after passing through the auxiliary reel, further drive the tensioning reel A to rotate through the clutch A, forming the speed and torque on the tensioning reel A; when clutch A and clutch B are disengaged, the corresponding tensioning reels A and B are in an unpowered free state.
[0012] Furthermore, the guide pulley assembly consists of a horizontal guide pulley, a pulley bracket, a speed measuring pulley, a speed measuring encoder device, a pin-type tension sensor, a force measuring pulley and an anti-cable-stripping device. After the test cable comes out of the test winch, it selects a route or a route according to the different test contents; Route: After passing through the horizontal guide pulley A, the test cable directly enters the pulley bracket, winds around the speed measuring pulley and the force measuring pulley respectively, and then passes through the anti-cable-stripping device. The wrap angle of the two pulleys is 90°, and then the test cable enters the tooling pull winch drum A and the pull winch drum B along the route; Both the speed measuring pulley and the force measuring pulley are installed on the pulley bracket. The center sections of the two pulley grooves coincide and are arranged vertically to ensure that the test cable will not produce any deviation when passing through the two pulleys; the anti-cable device uses two stainless steel sleeve structures to limit the cable outlet position of the test cable; the incremental encoder of the speed encoder device is connected to the center axis of the speed measuring pulley, and the pin-type tension sensor is installed as the center axis of the force measuring pulley; route: the test cable passes through the horizontal guide pulley A and the horizontal guide pulley B in sequence and is directly connected to the connecting buckle of the load test bench.
[0013] Furthermore, the guide pulley assembly is used to guide the test cable under different test requirements and measure the speed and tension of the cable during the test. The test cable drives the two wheels to rotate by winding around the speed measuring pulley and the force measuring pulley. The real-time rotation speed of the speed measuring pulley is measured by a speed measuring encoder device, and then converted into the real-time speed of the cable; the pulley center axis of the force measuring pulley is a pin-type tension sensor, which is used to instantly measure the force exerted by the pulley on the axis and then convert the cable tension through the cable wrap angle.
[0014] Furthermore, the winch under test is a long-distance scientific expedition winch, which consists of a cable storage winch, a cable arrangement device, a tension compensation device, a guide wheel and a traction winch; one end of the test cable passes through the flange on one side of the cable storage winch drum and is fastened with a rope pressure plate bolt, and the test cable is tightened by manpower, the cable storage winch is started to run slowly, and the drum rotates to slowly wind the test cable onto the drum of the cable storage winch. After the cable is wound to the middle position of the drum, the test cable is passed through the right-angle guide wheel of the cable arrangement device with a wrap angle of 90°, and then enters the guide wheel and the tension compensation device in sequence. The guide wheel wrap angle is 180°. The traction winch is a double-winch structure. After the test cable enters one side of the traction winch from the tension compensation device, it is wrapped around the two winches for several turns in sequence and then passes through the other side and enters the guide pulley assembly.
[0015] The beneficial effects of the utility model are:
[0016] 1) This utility model can be used for factory test verification of current mainstream deep-sea scientific research winch products. It also has functions such as load test, speed pulling test simulating actual working conditions, and long-distance cable arrangement test, which can greatly improve the test verification efficiency of similar equipment;
[0017] 2) The load test bench used is a high-strength truss steel structure, equipped with an anti-rotation hook to increase the service life of the wire rope, and equipped with an auxiliary tray for weight replacement, which improves test efficiency;
[0018] 3) The tooling pull winch used adopts variable frequency control drive and modular design, which can not only meet the load variation characteristics of the tested winch, but also meet the test requirements of scientific research winches with different cable medium specifications by replacing the drum module;
[0019] 4) The speed and force measuring guide wheel devices are provided to test the key parameters required for the winch test, and can also assist in the calibration of the measuring tools of the winch under test. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a front view of the layout of the onshore test device for the long-distance scientific expedition winch of the utility model;
[0021] Figure 2 This is a top view of the layout of the onshore test device for the long-distance scientific expedition winch of the utility model;
[0022] Figure 3 This is a schematic diagram of a load test bench of the present utility model;
[0023] Figure 4 This is a structural diagram of the tooling pull winch of the utility model;
[0024] Figure 5 This is a schematic diagram of the guide pulley assembly of the present utility model;
[0025] Figure 6 This is a schematic diagram of the cable-stripping prevention device structure;
[0026] Figure 7 This is a schematic diagram of the connection structure of the pulley bracket, speed measuring pulley, speed encoder device, pin-type tension sensor, and force measuring pulley. DETAILED DESCRIPTION
[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0028] like Figures 1 to 7 As shown in the figure, the utility model discloses an onshore test device for long-distance traction winches, which mainly includes a load test bench 1, a tooling pull winch 2, a guide pulley assembly 3, a test winch 4, and a test cable 5. The four installation areas of the entire test device: the load test bench area, the tooling pull winch installation area, the guide pulley assembly installation area, and the test winch installation area, all provide installation interfaces by cementing pre-embedded guide rail parts to ensure that the components installed in each area can withstand the maximum test load of the test winch.
[0029] like Figure 3 As shown in (a), (b) and (c), the load test bench 1 consists of a connecting shackle 101, a test wire rope 102, a bottom guide pulley 103, a portal structure 104, a top guide pulley 105, an anti-rotation hook 106, several weights 107 and a weight tray 108. Mutual relationship: The portal structure 104 is the main body of the load test bench, which is installed vertically on the horizontal ground and reinforced with struts; the bottom guide pulley 103 is installed in front of the bottom of the portal structure 104, and the center line of the guide pulley coincides with the center line of the portal frame; the top guide pulley 105 is installed on the top crossbeam of the portal frame, and the center line of the guide pulley coincides with the center line of the portal frame; one end of the test wire rope 102 is connected to the connecting shackle 101, and the other end passes through the bottom guide pulley 103 and the top guide pulley 105 in sequence to reach the bottom of the portal structure 104 and is connected to the anti-rotation hook 106 through the shackle; one end of the anti-rotation hook 106 is connected to the test wire rope 102, and the other end is connected to the weight tray 108 through the shackle, and a number of weights 107 are evenly stacked on the weight tray 108.
[0030] The portal structure 104 is the main structural member for carrying the winch load, and adopts a truss structure. Struts are welded to the front and rear of the left and right side columns, and the whole structure has good strength and rigidity. The bottom guide pulley 103 and the top guide pulley 105 are made of integral steel forging materials and self-lubricating bearings, which effectively improve the service life of the test stand and reduce maintenance costs; the anti-rotation hook 106 is composed of a fixed hook, an axle seat and a rotating shaft hook from top to bottom. After the shaft head of the rotating shaft hook is inserted into the axle seat, it can rotate freely relative to the axle seat. Then the fixed hook and the axle seat are fastened with bolts. After the weight is lifted off the ground, it will produce a certain rotation by itself, thereby driving the rotating shaft hook of the anti-rotation hook 106 to rotate. Since the rotating shaft hook and the fixed hook can rotate relative to each other, it is ensured that the test wire rope 102 will not twist with the rotation of the weight, thereby affecting the service life of the wire rope; the weight tray 108 adopts a circular chassis with a cylindrical vertical pole welded vertically at the center of the circle, and the pole head is processed to form an ear plate connected to the anti-rotation hook 106. The weights 107 are circular, disc-shaped structures with a central through-hole. Several pieces are manufactured to uniform specifications and dimensions. After production, each weight must be weighed and calibrated, and the calibrated weight is marked on the weight. During actual testing, the appropriate number of weights 107 is configured based on the test requirements of the winch being tested. Using a lifting device, the weights 107 are sequentially passed through the central through-hole and onto the vertical poles of the weight tray 108. Finally, one end of the rotating shaft hook of the anti-rotation hook 106 is connected to the ear plate head of the vertical pole of the weight tray 108. This completes the test weight configuration.
[0031] like Figure 4As shown in (a) and (b), the tooling pulling winch 2 consists of pulling drums 201, 208, clutches 202, 207, a motor 203, a coupling 204, a disc brake 205, a reducer 206, drum supports 209, 212, a base 210, an auxiliary drum 211, a frequency conversion control cabinet 213 and a starting control cabinet 214. Interrelationships: The tooling pull winch utilizes variable frequency drive control, specifically through the starter control cabinet 214 and the variable frequency control cabinet 213 to achieve torque and speed control of the motor 203. The output shaft of the motor 203 is connected to the input shaft of the reducer 206 via a coupling 204 with a brake disc. A disc brake 205 is installed on one side of the coupling 204, generating braking force by clamping the coupling brake disc. The output shaft of the reducer 206 has two output shafts at ends A and B. End A is connected to the pull drum 208 via a clutch 207, and end B is first connected to one end of the auxiliary drum 211. The other end of the auxiliary drum 211, end C, is connected to the pull drum 201 via a clutch 202. The center lines of the pull drum 208, the output shaft of the reducer 206, the auxiliary drum 211, and the pull drum 201 are aligned.
[0032] The tooling pull winch 2 is composed of an electronic control system 213, 214 and mechanical bodies 201-212. It adopts a variable frequency drive method and has a completely independent power system. After being connected to the test winch 4 through the test cable 5 and tensioned, the tooling pull winch's forward and reverse rotation and the motor output torque are precisely controlled through the frequency conversion controller, thereby simulating the actual cable retracting and releasing working conditions of the test winch. The filter control cabinet 214 in the electronic control system is mainly used for power switching and filtering. The door of the frequency conversion control cabinet 213 is equipped with a frequency converter start and stop switch, forward start and reverse start buttons, speed adjustment knob, emergency stop button and reset button, etc. The drive motor 203 is a variable frequency controlled hoisting motor with a built-in encoder for frequency converter closed-loop control. The reducer 206 uses a box-type structure with a single input and double solid shaft output. The output shaft of the motor 203 and the input shaft of the reducer 206 are connected using a coupling 204 with a brake disc. The disc brake 205 clamps the coupling 204 with the brake pads. The brake disc 204 generates braking force for parking brake of tooling pulling winch. The disc brake 205 adopts the mechanism of opening with power on and braking without power off. The A end of the output of the reducer 206 is connected to the pulling drum 208 through the clutch 207. When the clutch 207 is closed, the speed and torque of the motor 203 will be transmitted to the clutch 207 at the A end through the reducer 206, further driving the pulling drum 208 to rotate, forming the speed and torque on the pulling drum 208. The B end of the output of the reducer 206 is connected to the auxiliary drum 211 through the coupling, and then connected to the auxiliary drum 211 through the clutch at the C end. The clutch 202 is connected to the pulling drum 201, and the auxiliary drum 211 is only used to assist in the dragging of the test cable 5 and other auxiliary functions during the test preparation stage. When the clutch 202 is closed, the speed and torque of the motor 203 are transmitted to the B end through the reducer 206, and after passing through the auxiliary drum 211, the clutch 202 further drives the pulling drum 201 to rotate, forming the speed and torque on the pulling drum 201; when the above-mentioned clutches 202 and 207 are disengaged, the corresponding pulling drums 201 and 208 are in an unpowered free state, and the clutches are all manually operated. ; Both the pulling drum 201 and the pulling drum 208 use a ready-to-use installation method. Their drum diameters and rope capacities are different, which can meet the needs of the test winches using two different working cables for simultaneous installation and testing; when the clutches 202 and 207 are disengaged, the pulling drums 201 and 208 can be conveniently lifted off site using lifting equipment. If the test winch needs to be replaced for testing, the drums are remade according to the needs of the test winch and then lifted to the A end or C end for installation using lifting equipment. The test preparation of the tooling pulling winch can be completed in a very short time, which is efficient and fast.
[0033] like Figure 5As shown in Figures 6 and 7, the guide pulley assembly 3 consists of horizontal guide pulleys 301 and 308, a pulley bracket 302, a speed measuring pulley 303, a speed measuring encoder device 304, a pin-type tension sensor 305, a force measuring pulley 306, and an anti-cable-stripping device 307. Mutual Relationship: After the test cable 5 emerges from the test winch 4, it can choose Route 1 or Route 2 depending on the test content. Route 1: After passing through the horizontal guide pulley 301, the test cable 5 directly enters the pulley bracket 302, is wound around the speed measuring pulley 303 and the force measuring pulley 306, and then passes through the anti-cable-stripping device 307. The wrap angle of the two pulleys is 90°. Then, the test cable 5 enters the tooling pull winch drums 201 and 208 along Route 1. Both the speed measuring pulley 303 and the force measuring pulley 306 are mounted on the pulley bracket 302. The center cross-sections of the two pulley grooves overlap and are arranged vertically, ensuring that the test cable 5 does not experience any deviation when passing through the two pulleys. The anti-cable device 307 uses two stainless steel sleeve structures 307-1 to limit the cable exit position of the test cable 5. The incremental encoder of the speed encoder device 304 is connected to the central axis of the speed measuring pulley 303, and the pin-type tension sensor 305 is installed as the central axis of the force measuring pulley 306. Route 2: The test cable 5 passes through the horizontal guide pulley 301 and the horizontal guide pulley 308 in sequence, and then directly connects to the connecting buckle 101 of the load test bench.
[0034] The guide pulley assembly 3 is mainly responsible for guiding the test cable 5 under different test requirements and measuring the speed and tension of the cable during the test. The principles of speed measurement and tension measurement are as follows: the test cable 5 drives the two wheels to rotate by winding the speed measuring pulley 303 and the force measuring pulley 306. The real-time rotation speed of the speed measuring pulley 303 can be measured by the speed measuring encoder device 304, and then converted into the real-time speed of the cable; the pulley center axis of the force measuring pulley 306 is a pin-type tension sensor, which can instantly measure the force exerted by the pulley on the axis and then convert the cable tension through the cable wrap angle.
[0035] The winch under test is a long-distance scientific expedition winch, which is generally composed of a cable storage winch, a cable arrangement device, a tension compensation device, a guide pulley, and a traction winch. Relationships: The appropriate test cable 5 is selected according to the actual working medium cable of the test winch. The main considerations are that the cable diameter is close to the actual working cable and within the required tolerance range, and the breaking force meets the winch load test requirements. One end of the test cable 5 passes through the flange on one side of the cable storage winch drum and is fastened with a rope pressure plate bolt. The test cable 5 can be tightened as much as possible by manpower. The cable storage winch is started and operated slowly. The drum rotates and the test cable 5 is slowly wound onto the drum of the cable storage winch. When the cable is wound to the middle position of the drum, the test cable 5 is passed through the right-angle guide pulley of the cable arrangement device with a wrap angle of 90°, and then enters the guide pulley and tension compensation device in sequence. The guide pulley wrap angle is 180°. The traction winch is a double-wrench structure. After entering one side of the traction winch from the tension compensation device, the test cable 5 is wound on the two winches in sequence for several turns, then passes through the other side, and then enters the guide pulley assembly 3.
[0036] Working principle:
[0037] This test device can simultaneously complete the load test of long-distance scientific research winch and the speed pulling and long-distance cable arrangement test under simulated sea conditions.
[0038] 1) Load test: Connect the test winch to the test cable and connect it to the load test bench through the guide pulley assembly. According to different test requirements, set the weight under the test bench and connect them. Start the test winch to carry out the conventional load test;
[0039] 2) Speed pulling and cable arrangement test: The test winch is connected to the test cable and connected to the tooling pulling winch through the guide pulley assembly. During the cable reeling test, the test winch reels the cable according to the handle control signal, and the tooling pulling winch follows the test winch to perform follow-up movement, while generating the set variable load on the cable. The load change curve can be given by the tooling pulling winch controller according to the environmental use conditions of the test winch. During the cable releasing test, the tooling pulling winch actively moves at a matching speed according to the handle control signal of the test winch, while generating the set variable load on the cable. The load change curve is also given by the tooling pulling winch controller according to the environmental use conditions of the test winch. Based on this, the test winch can carry out full-speed and long-distance cable arrangement tests.
Claims
1. An onshore test device for a long-distance scientific expedition winch, characterized by: It includes a load test bench, a tooling pulley, a guide pulley assembly, a test winch and a test cable. The load test bench is placed in the load test bench area outside the tooling pulley, the tooling pulley is placed in the tooling pulley installation area, the guide pulley assembly is placed in the guide pulley assembly installation area between the tooling pulley installation area and the test winch installation area, the test winch is placed in the test winch installation area, one end of the test cable is connected to the test winch, and the other end is connected to the load test bench or the tooling pulley through the guide pulley assembly; after the tooling pulley and the test winch are connected and tensioned by the test cable, the frequency conversion controller is used to achieve precise control of the forward and reverse rotation of the tooling pulley and the output torque of the motor, thereby simulating the actual cable-retracting and -releasing working conditions of the test winch.
2. The onshore test device for long-distance scientific research winch according to claim 1, characterized in that: The load test bench consists of a connecting shackle, a test wire rope, a bottom guide pulley, a portal structure, a top guide pulley, an anti-rotation hook, weights and a weight tray. The portal structure is the main body of the load test bench, which is vertically installed on the horizontal ground and reinforced with struts; the bottom guide pulley is installed in front of the bottom of the portal structure, and the center line of the guide pulley coincides with the center line of the portal frame; the top guide pulley is installed on the top crossbeam of the portal frame, and the center line of the guide pulley coincides with the center line of the portal frame; one end of the test wire rope is connected to the connecting shackle, and the other end passes through the bottom guide pulley and the top guide pulley in sequence to reach the bottom of the portal structure and is connected to the anti-rotation hook through the shackle; one end of the anti-rotation hook is connected to the test wire rope, and the other end is connected to the weight tray through the shackle, and several weights are evenly stacked on the weight tray.
3. The onshore test device for a long-distance scientific expedition winch according to claim 2, characterized in that: The portal structure adopts a truss structure, and support rods are welded in front and behind the left and right side columns. The bottom guide pulley and the top guide pulley are made of integral steel forging materials and self-lubricating bearings, which effectively improve the service life of the platform; the anti-rotation hook is composed of a fixed hook, an axle seat and a rotating shaft hook from top to bottom. After the shaft head of the rotating shaft hook is inserted into the axle seat, it can rotate freely relative to the axle seat. The fixed hook and the axle seat are fastened with bolts. After the weight is lifted off the ground, it will produce a certain rotation by itself, thereby driving the rotating shaft hook of the anti-rotation hook to rotate.
4. The onshore test device for a long-distance scientific expedition winch according to claim 2, characterized in that: The weight tray adopts a circular chassis with a cylindrical upright pole welded vertically at the center of the circle. The pole head is provided with an ear plate for connecting with the anti-rotation hook. The weight adopts a circular disc structure with a through hole in the center. During the actual test, the corresponding number of weights are configured according to the test requirements of the test winch, and the weights are passed through the center through hole in turn through the upright pole of the weight tray and stacked neatly on the weight tray. After that, one end of the rotating shaft hook of the anti-rotation hook is connected to the ear plate head of the upright pole of the weight tray to complete the test weight configuration work.
5. The onshore test device for long-distance scientific research winch according to claim 1, characterized in that: The tooling pulling winch is composed of a pulling drum, a clutch, a motor, a coupling, a disc brake, a reducer, a drum bracket, a base, an auxiliary drum, a frequency conversion control cabinet and a starting control cabinet. The tooling pulling winch adopts frequency conversion drive control, and the torque and speed of the motor are controlled by the starting control cabinet and the frequency conversion control cabinet; the motor output shaft and the reducer input shaft are connected through a coupling with a brake disc, and the disc brake is installed on one side of the coupling, and the braking force is generated by clamping the coupling brake disc; the reducer output shaft is a double output shaft at both ends A and B. The A end is connected to the pulling drum through the clutch B, and the B end is connected to one end of the auxiliary drum. The C end of the auxiliary drum is connected to the pulling drum through the clutch A. The pulling drum A is connected, and the center line of the pulling drum B, the reducer output shaft, the auxiliary drum center line and the center line of the pulling drum A are kept coincident; the starting control cabinet is used for power switch and filtering, and the frequency converter control cabinet door is provided with the frequency converter start and stop switch, forward start and reverse start buttons, speed adjustment knob, emergency stop button and reset button; the drive motor is a variable frequency control lifting motor with a built-in encoder for frequency converter closed-loop control, the reducer uses a box-type structure with a single input and double solid shaft output, and the disc brake generates braking force by clamping the brake pads of the coupling, which is used for parking brake of the tooling pulling winch, and the disc brake is a disc brake that opens when powered on and brakes when powered off.
6. The onshore test device for a long-distance scientific expedition winch according to claim 5, characterized in that: When clutch B is closed, the motor speed and torque are transmitted to the clutch B at the A end through the reducer, further driving the pulling reel B to rotate, forming the speed and torque on the pulling reel B; the auxiliary reel is used to assist in the dragging of the test cable and other auxiliary functions during the test preparation stage. When clutch A is closed, the motor speed and torque are transmitted to the B end through the reducer, and after passing through the auxiliary reel, it is further driven by the clutch A to rotate, forming the speed and torque on the pulling reel A; when clutch A and clutch B are disengaged, the corresponding pulling reels A and B are in an unpowered free state.
7. The onshore test device for a long-distance scientific expedition winch according to claim 1, characterized in that: The guide pulley assembly consists of a horizontal guide pulley, a pulley bracket, a speed measuring pulley, a speed measuring encoder device, a pin-type tension sensor, a force measuring pulley and an anti-cable-stripping device. After the test cable comes out of the test winch, route 1 or route 2 is selected according to the different test contents; Route 1: The test cable passes through the horizontal guide pulley A and directly enters the pulley bracket, and is wound around the speed measuring pulley and the force measuring pulley respectively, and then passes through the anti-cable-stripping device. The wrap angle of the two pulleys is 90°, and then the test cable enters the tooling pull winch drum A and the pull winch drum B along the route; The speed pulley and the force-measuring pulley are both installed on the pulley bracket. The center sections of the two pulley grooves coincide and are arranged vertically to ensure that the test cable will not produce any deviation when passing through the two pulleys; the anti-cable device uses two stainless steel sleeve structures to limit the cable-out position of the test cable; the incremental encoder of the speed encoder device is connected to the center axis of the speed pulley, and the pin-type tension sensor is installed as the center axis of the force-measuring pulley; Route 2: The test cable passes through the horizontal guide pulley A and the horizontal guide pulley B in sequence and is directly connected to the connecting buckle of the load test bench.
8. The onshore test device for a long-distance scientific expedition winch according to claim 7, characterized in that: The guide pulley assembly is used to guide the test cable under different test requirements and measure the speed and tension of the cable during the test. The test cable drives the two wheels to rotate by winding around the speed measuring pulley and the force measuring pulley. The real-time rotation speed of the speed measuring pulley is measured by the speed measuring encoder device, and then the real-time speed of the cable is converted; the pulley center axis of the force measuring pulley is a pin-type tension sensor, which is used to instantly measure the force exerted by the pulley on the axis and then convert the cable tension through the cable wrap angle.
9. The onshore test device for a long-distance scientific expedition winch according to claim 1, characterized in that: The winch under test is a long-distance scientific expedition winch, which consists of a cable storage winch, a cable arrangement device, a tension compensation device, a guide wheel and a traction winch; one end of the test cable passes through the flange on one side of the cable storage winch drum and is fastened with a rope pressure plate bolt. The test cable is tightened by manpower, and the cable storage winch is started to run slowly. The drum rotates and the test cable is slowly wound onto the drum of the cable storage winch. After the cable is wound to the middle position of the drum, the test cable is passed through the right-angle guide wheel of the cable arrangement device with a wrap angle of 90°, and then enters the guide wheel and the tension compensation device in sequence. The guide wheel wrap angle is 180°. The traction winch is a double-wrench structure. After the test cable enters one side of the traction winch from the tension compensation device, it is wrapped around the two winches for several turns in sequence and then passes through the other side and enters the guide pulley assembly.