Land test device and method for long-distance scientific investigation winch

Abstract

The invention relates to a land test device and method for a long-distance scientific investigation winch, and the device is characterized in that a load test bench is disposed in a load test bench area, a tool opposite-pulling winch is disposed in a tool opposite-pulling winch installation area, a guide pulley assembly is disposed in a guide pulley assembly installation area, and a tested winch is disposed in a tested winch installation area; one end of the test cable is connected with the tested winch, and the other end is connected to the load test bench or the tool counter-pulling winch through the guide pulley assembly; after the tool counter-pulling winch and the tested winch are connected and tensioned through the test cable, the accurate control of the forward and reverse rotation of the tool counter-pulling winch and the output torque of the motor is realized through the variable frequency controller, and then the actual cable winding and unwinding working condition of the tested winch is simulated. According to the invention, the actual working condition of the tested winch on the sea can be simulated through the test system device composed of the opposite-pulling tool winch, the load test bench and the guide pulley assembly, and the whole-course cable arrangement function, the speed, the load and other characteristics of the long-distance scientific investigation winch are verified.

Description

Technical Field

[0001] The present invention relates to the technical field of winch testing in a deep-sea scientific research support system, and in particular to an onshore testing and verification device and method for a long-distance towing scientific research winch. Background Art

[0002] As marine science and technology gradually develops towards deeper and farther depths, higher requirements are also placed on the scientific research support system necessary for deep-sea scientific research. As a key equipment in the scientific research support system, the winch is mainly used for the equipment deployment and retraction in various scientific research operations, including marine geological survey sampling, hydrological measurement, and the deployment and retraction of various underwater robots. Therefore, the working performance of the scientific research winch system largely determines whether the scientific research operation process is smooth and whether the operation is successful.

[0003] At present, the deep-sea scientific research winches used on mainstream scientific research vessels in my country 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 generally lasts 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 shorter. If a pulling winch is used for loading, it cannot 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 of the product after loading. In addition, the product is more likely to have problems due to insufficient verification, 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 research winches, which can conduct complete and effective verification of the product under factory conditions. Summary of the invention

[0005] The purpose of the present invention is to provide an onshore test device and method for long-distance scientific research winches. The test system device composed of a variable frequency controlled pulling tool winch, a load test bench guide pulley assembly and other special tooling parts can simulate the actual working conditions of the test winch at sea and verify the full-length cable-laying 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 through the guide pulley assembly, or connected to the tooling winch; 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 through the frequency conversion controller, thereby simulating the actual cable retracting and releasing working conditions of the test winch.

[0007] Furthermore, the load test bench is composed 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 a 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 wheel 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 wheel 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 sequentially bypasses the bottom guide pulley and the top guide pulley 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 a number of weights are evenly stacked on the weight tray.

[0008] Furthermore, the portal structure adopts a truss structure, and support rods are welded on the front and rear of 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 gantry; 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, 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 vertically welded 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 upright pole of the weight tray through the center through hole in turn 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 control of the motor are realized through 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 formed 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, the B end is connected to one end of the auxiliary drum, and 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 output shaft of the reducer, the center line of the auxiliary drum 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 start and stop switch, forward start and reverse start buttons, speed adjustment knob, emergency stop button and reset button are provided on the door of the frequency converter control cabinet; the driving motor is a variable frequency controlled 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 holding the brake disc of the coupling through the brake pad, which is used for parking brake of the tooling pulling winch, and the disc brake is a disc brake that is powered on to open and powered off to brake.

[0011] Furthermore, when clutch B is closed, the motor speed and torque are transmitted to the A-end clutch B through the reducer, further driving the pulling reel B to rotate, forming a rotation 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, further driving the pulling reel A to rotate through the clutch A, forming a rotation 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 a free state without power.

[0012] Furthermore, the guide pulley assembly is composed 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-dropping device. After the test cable comes out of the tested winch, it selects a route or a route according to the different test contents; route: the test cable directly enters the pulley bracket after passing through the horizontal guide pulley A, and then passes through the anti-cable-dropping device after winding around the speed measuring pulley and the force measuring pulley respectively. The wrap angle of the two pulleys is °, and then the test cable enters the tooling pull winch drum A and the pull winch drum B along the route; the test cable The speed pulley and the force measuring pulley are both installed on the pulley bracket. The center sections of the wheel grooves of the two pulleys 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 drop device uses two stainless steel sleeve structures to limit the cable exit 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 for guiding the test cable under different test requirements and measuring 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 the real-time speed of the cable is calculated. The pulley center axis of the force measuring pulley is a pin-type tension sensor, which is used to instantly measure the force of 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, the test cable is tightened by manpower, the cable storage winch is started to run slowly, the drum rotates to slowly wind the test cable onto the drum of the cable storage winch, and 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, the test cable enters one side of the traction winch from the tension compensation device, is sequentially wrapped around the two winches for several turns, and then passes through the other side, and then enters the guide pulley assembly.

[0015] A test method using an onshore test device for a long-distance scientific research winch is used to simultaneously complete a load test of the long-distance scientific research winch and a speed pull and long-distance cable arrangement test under simulated sea conditions, comprising:

[0016] 1) Load test: Connect the winch under test 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 winch under test to carry out the conventional load test;

[0017] 2) Speed ​​pulling and cable arrangement test: connect the test winch to the test cable and connect it 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 make a follow-up movement, and at the same time, a set variable load is generated on the cable, and the load change curve is 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, and at the same time, a set variable load is generated on the cable, and the load change curve is also given by the tooling pulling winch controller according to the environmental use conditions of the test winch.

[0018] The beneficial effects of the present invention are:

[0019] 1) The present invention can be used for factory test verification of current mainstream deep-sea scientific research winch products, and 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;

[0020] 2) The load test bench used is a high-strength truss steel structure, with an anti-rotation hook to increase the service life of the wire rope, and an auxiliary tray for weight replacement to improve the test efficiency;

[0021] 3) The tooling pull winch used adopts variable frequency control drive and modular design, which can not only meet the load change 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;

[0022] 4) By setting up the speed measuring and force measuring guide wheel device, the key parameter testing means required for the winch test are provided, and the measuring tools provided by the tested winch can also be calibrated to assist. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a front view of the layout of the long-distance scientific research winch onshore test device of the present invention;

[0024] Figure 2 It is a top view of the arrangement of the onshore test device of the long-distance scientific research winch of the present invention;

[0025] Figure 3 It is a schematic diagram of the load test bench of the present invention;

[0026] Figure 4 It is a structural diagram of the tooling pulling winch of the present invention;

[0027] Figure 5 It is a schematic diagram of the guide pulley assembly of the present invention;

[0028] Figure 6 This is a schematic diagram of the structure of the cable-off prevention device;

[0029] Figure 7 It is a schematic diagram of the connection structure of the pulley bracket, the speed measuring pulley, the speed measuring encoder device, the pin-type tension sensor, and the force measuring pulley. DETAILED DESCRIPTION

[0030] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0031] like Figures 1 to 7 As shown, an onshore test device for a long-distance traction winch of the present invention mainly includes a load test bench 1, a tooling 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 winch installation area, the guide pulley assembly installation area and the test winch installation area are all provided with installation interfaces by cement pouring with guide rail embedded parts to ensure that the installation components in each area can withstand the maximum test load of the test winch.

[0032] like Figure 3 As shown in (a), (b) and (c), the load test bench 1 is composed 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, a number of weights 107 and a weight tray 108. Mutual relationship: the portal structure 104 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 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 sequentially bypasses the bottom guide pulley 103 and the top guide pulley 105 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.

[0033] The portal structure 104 is the main structural member for bearing the winch load, and adopts a truss structure, and support rods are welded at the front and rear of the left and right side columns, so the whole 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, and 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, 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, a cylindrical vertical pole is vertically welded at the center of the circle, and the rod head is processed to be used for the ear plate connected to the anti-rotation hook 106. The weight 107 is a circular disc structure with a through hole in the center and is made in several pieces according to uniform specifications and sizes. After the production is completed, each weight needs to be weighed and calibrated and the calibrated weight is marked on the weight. In the actual test, the corresponding number of weights 107 is configured according to the test requirements of the winch under test, and the weights 107 are sequentially passed through the center through hole through the vertical pole of the weight tray 108 using a lifting device and neatly stacked on 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, and the test weight configuration work is completed.

[0034] like Figure 4 As 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, a drum bracket 209, 212, a base 210, an auxiliary drum 211, a frequency conversion control cabinet 213 and a starting control cabinet 214. Mutual relations: The tooling pull winch adopts variable frequency drive control, and the torque and speed control of the motor 203 is realized by starting the control cabinet 214 and the variable frequency control cabinet 213; the output shaft of the motor 203 is connected to the input shaft of the reducer 206 through the coupling 204 with a brake disc, and the disc brake 205 is installed on one side of the coupling 204, and the braking force is formed by clamping the coupling brake disc; the output shaft of the reducer 206 is a double output shaft at both ends A and B, and the A end is connected to the pull drum 208 through the clutch 207, and the B end is first connected to one end of the auxiliary drum 211, and the other end C of the auxiliary drum 211 is connected to the pull drum 201 through the clutch 202. The center line of the pull drum 208, the output shaft of the reducer 206, the center line of the auxiliary drum 211 and the center line of the pull drum 201 are kept coincident.

[0035] The tooling winch 2 is composed of an electric control system 213, 214 and a mechanical body 201-212. It adopts a variable frequency drive mode and has a completely independent power system. After being connected to the test winch 4 through the test cable 5 and tensioned, the frequency conversion controller is used to achieve precise control of the forward and reverse rotation of the tooling winch and the output torque of the motor, thereby simulating the actual cable retracting and releasing working conditions of the test winch. The filter control cabinet 214 in the electric control system is mainly used for power switch 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 lifting motor with a built-in encoder for the closed-loop control of the frequency converter. 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 holds the coupling 204 tightly through the brake pad. The brake disc 204 generates braking force for parking brake of tooling 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 with 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 with the auxiliary drum 211 through the coupling, and then through the clutch at the C end. The clutch 202 is connected to the tension drum 201, and the auxiliary drum 211 is only used to assist 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 tension drum 201 to rotate, forming the speed and torque on the tension drum 201; when the above-mentioned clutches 202 and 207 are disengaged, the corresponding tension drums 201 and 208 are in a free state without power, and the clutches are all manually operated. Both the pulling drum 201 and the pulling drum 208 are installed in a ready-to-use manner. The drum diameters and rope capacities are different, which can meet the requirements of simultaneous installation and testing of test winches using two different working cables. When the clutches 202 and 207 are disengaged, the pulling drums 201 and 208 can be conveniently lifted off site using a lifting equipment. If the test winch needs to be replaced for testing, the drum can be remade according to the requirements of the test winch and then lifted to the A end or C end for installation using a lifting equipment. The test preparation of the tooling pulling winch can be completed in a very short time, which is efficient and quick.

[0036] like Figure 5, 6, 7, the guide pulley assembly 3 is composed of horizontal guide pulleys 301, 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-dropping device 307. Mutual relationship: After the test cable 5 comes out of the tested winch 4, route 1 or route 2 can be selected according to the different test contents. Route 1: After passing through the horizontal guide pulley 301, the test cable 5 directly enters the pulley bracket 302, and is respectively wound around the speed measuring pulley 303 and the force measuring pulley 306, and then passes through the anti-cable-dropping device 307. The wrap angles of the two pulleys are both 90°, and then the test cable 5 enters the tooling pull winch drum 201, 208 along route 1. The speed measuring pulley 303 and the force measuring pulley 306 are both installed on the pulley bracket 302. The center sections of the two pulley grooves overlap and are arranged vertically to ensure that the test cable 5 will not produce 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 measuring 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 is directly connected to the connecting buckle 101 of the load test bench.

[0037] 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, wherein 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, wherein the real-time rotation speed of the speed measuring pulley 303 can be measured by the speed measuring encoder device 304, and then the real-time speed of the cable is calculated; the pulley center axis of the force measuring pulley 306 is a pin-type tension sensor, which can instantly measure the force of the pulley on the axis and then convert the cable tension through the cable wrap angle.

[0038] The winch 4 under test is a long-distance scientific research winch, which is generally composed of a cable storage winch, a cable arrangement device, a tension compensation device, a guide wheel and a traction winch. Relationship: According to the actual working medium cable of the winch under test, the appropriate test cable 5 is selected mainly considering that the cable diameter is close to the actual working cable and is within the required tolerance range, and the breaking force meets the requirements of the winch load test, etc. 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 5 can be tightened as much as possible by manpower, the cable storage winch is started to run slowly, and the drum rotates to slowly wind the test cable 5 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 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 5 enters one side of the traction winch from the tension compensation device, it is wound on the two winches for several turns in sequence and then passes through the other side, and then enters the guide pulley assembly 3.

[0039] Working principle:

[0040] This test device can simultaneously complete the load test of the long-distance scientific research winch and the speed pulling and long-distance cable arrangement test under simulated sea conditions.

[0041] 1) Load test: Connect the winch under test 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 winch under test to carry out conventional load test;

[0042] 2) Speed ​​pulling and cable arrangement test: Connect the test winch to the test cable and connect it 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 make a follow-up movement, and at the same time, a set variable load is generated 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, and at the same time, a set variable load is generated 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 research winch, characterized in that: It includes a load test bench, a tooling winch, 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 winch, the tooling winch is placed in the tooling winch installation area, the guide pulley assembly is placed in the guide pulley assembly installation area between the tooling winch 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 through the guide pulley assembly, or connected to the tooling winch; after the tooling winch and the test winch are connected and tensioned by the test cable, the frequency conversion controller is used to realize the precise control of the forward and reverse rotation of the tooling winch 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 is composed 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 a 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 wheel 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 wheel 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 bypasses 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 a number of weights are evenly stacked on the weight tray.

3. The onshore test device for long-distance scientific research winch according to claim 2, characterized in that: The portal structure adopts a truss structure, and support rods are welded on the front and rear of 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 stand; 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, thereby driving the rotating shaft hook of the anti-rotation hook to rotate.

4. The onshore test device for long-distance scientific research winch according to claim 2, characterized in that: The weight tray adopts a circular chassis with a cylindrical pole vertically welded 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 hole through the pole of the weight tray in turn 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 weight tray pole 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 control of the motor are realized through 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 formed 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 center line of the auxiliary drum 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 start and stop switch, forward start and reverse start buttons, speed adjustment knob, emergency stop button and reset button are set on the door of the frequency converter control cabinet; the driving motor is a variable frequency controlled 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 holding the brake disc of the coupling through the brake pad, which is used for parking brake of tooling pulling winch, and the disc brake is a disc brake that is powered on and opened and powered off.

6. The onshore test device for long-distance scientific research 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 a 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, the pulling reel A is further driven to rotate through the clutch A, forming a 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 a free state without power.

7. The onshore test device for long-distance scientific research 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-dropping device. After the test cable comes out of the tested winch, route 1 or route 2 is selected according to the test content; Route 1: The test cable passes through the horizontal guide pulley A and directly enters the pulley bracket, and then winds around the speed measuring pulley and the force measuring pulley and passes through the anti-cable-dropping device. The wrap angles of the two pulleys are both °, and then the test cable enters the tooling winch drum A and the winch drum B along the route; the speed measuring pulley The pulley and the force measuring pulley are both installed on the pulley bracket. The center sections of the wheel grooves of the two pulleys 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 drop 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 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 long-distance scientific research 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 calculated; the pulley center axis of the force measuring pulley is a pin-type tension sensor, which is used to instantly measure the force of the pulley on the axis and then convert the cable tension through the cable wrap angle.

9. The onshore test device for long-distance scientific research 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 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-wrench structure. After the test cable enters one side of the traction winch from the tension compensation device, it is sequentially wrapped around the two winches for several turns and then passes through the other side, and then enters the guide pulley assembly.

10. A test method using the onshore test device for long-distance scientific research winch according to any one of claims 1 to 9, used to simultaneously complete the load test of the long-distance scientific research winch and the speed pulling and long-distance cable arrangement test under simulated sea conditions, characterized in that: include: 1) Load test: Connect the winch under test 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 winch under test to carry out the conventional load test; 2) Speed ​​pulling and cable arrangement test: connect the test winch to the test cable and connect it 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 make a follow-up movement, and at the same time, a set variable load is generated on the cable, and the load change curve is 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, and at the same time, a set variable load is generated on the cable, and the load change curve is also given by the tooling pulling winch controller according to the environmental use conditions of the test winch.

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