A winch retraction and extension reliability test system

Abstract

The present invention relates to the technical field of winch retraction and deployment reliability test systems, and specifically discloses a winch retraction and deployment reliability test system, comprising a cable, a test bench, and a single-hub straight-pull winch, a cable arranger, a first redirecting pulley, a first guide pulley, a traction winch, a cable slack compensator, a right-angle cable arranger, and a cable storage winch sequentially arranged on the test bench. A rope deformation detection device is provided between the first guide pulley and the traction winch, and a second redirecting pulley is provided between the traction winch and the cable slack compensator. In the present invention, a cable slack compensator, a right-angle cable arranger, and a cable storage winch are provided on one side of the traction winch, and a rope deformation detection device is provided on the other side of the traction winch. The rope deformation detection device detects the diameter of the cable wound on the first drum and the second redirecting pulley on the traction winch, and provides real-time feedback to a control unit for data analysis, thereby effectively controlling the tension of the cable and solving the problem of unstable coupling of the winch system.

Description

Technical Field

[0001] The invention belongs to the technical field of winch retraction and extension reliability test systems, in particular to a winch retraction and extension reliability test system. Background Art

[0002] Oceanographic survey vessels spend a long time at sea, and the safety and stability of cable reeling and unreeling during navigation become important processes. For example, for full-sea-depth scientific research operations, the rope capacity of the drum has reached 13,000 meters. This places more stringent requirements on the winch system's heavy-load traction winch, cable arrangement mechanism, and cable reeling and unreeling control system. Traditional operating winch systems have excessively heavy steel cables, which are easily worn and broken. In addition, the cable may become tangled during the cable arrangement process for ultra-large-capacity cables. This also introduces significant uncertainty factors into the accuracy of scientific research sampling and test analysis data. Therefore, there is an urgent need to invent a winch reeling and unreeling reliability test system to conduct comprehensive reliability testing and verification of the winch system, ensure the trouble-free operation of each component of the winch system, and analyze and improve existing problems. Summary of the Invention

[0003] The purpose of the present invention is to provide a winch retraction and extension reliability test system to solve the above-mentioned problems.

[0004] To solve the above technical problems, the present invention provides a winch retraction and release reliability test system, comprising a cable, a test bench, and a single-hub straight-pull winch, a cable arranger, a first redirecting pulley, a first guide pulley, a traction winch, a cable slack compensator, a right-angle cable arranger and a cable storage winch arranged in sequence on the test bench, a rope deformation detection device is provided between the first guide pulley and the traction winch, a second redirecting pulley, a second guide pulley and a third guide pulley are provided between the traction winch and the cable slack compensator, and the third guide pulley is composed of two second guide pulleys arranged in parallel up and down, an infrared rangefinder is provided on the right side of the single-hub straight-pull winch, one end of the cable is tied to the single-hub straight-pull winch, and the other end passes through the cable arranger, the first redirecting pulley, the first guide pulley, the rope deformation detection device, the traction winch, the second redirecting pulley, the second guide pulley, the third guide pulley, the cable slack compensator and the right-angle cable arranger in sequence, and is tied to the cable storage winch.

[0005] Furthermore, the traction winch includes a first frame, a first drum arranged in parallel on the first frame, and two first driving motors connected to ends of the first drum.

[0006] Furthermore, the single-hub straight-pull winch and the cable storage winch include a second frame, a second drum and a second drive motor provided on the second frame.

[0007] Furthermore, the right-angle cable arranger includes a first bracket, a second bracket, a guide shaft symmetrically arranged between the first bracket and the second bracket, and a servo motor, wherein a screw rod is provided in one of the guide shafts, one end of the screw rod extends out of the second bracket and is connected to the output end of the servo motor through an elastic coupling, a fourth guide pulley sliding seat is sleeved between the outer sides of the symmetrically arranged guide shafts, the inner side of the fourth guide pulley sliding seat passes through the guide shaft and is connected to the screw rod, a transmission column arranged laterally in parallel is provided on the fourth guide pulley sliding seat, a fourth guide pulley is installed on the fourth guide pulley sliding seat, and the fourth guide pulley and the fourth guide pulley sliding seat are connected by a pin shaft.

[0008] Furthermore, the cable slack compensator includes a first mounting frame, a second mounting frame, a movable bracket and a rotating wheel. One end of the movable bracket is installed on the first mounting frame and the second mounting frame. A first hydraulic cylinder is provided at the end of the first mounting frame. The output end of the first hydraulic cylinder is connected to the movable bracket. The rotating wheel is arranged on the movable bracket through a rotating shaft.

[0009] Furthermore, the first mounting bracket and the second mounting bracket include a third bracket, a fourth bracket, and a second hydraulic cylinder symmetrically arranged between the third bracket and the fourth bracket.

[0010] Furthermore, the cable is a synthetic fiber cable.

[0011] Furthermore, the infrared rangefinder is provided with an infrared probe, and the infrared probe is aimed at the cable tied to the second drum.

[0012] Furthermore, the test system includes a control unit.

[0013] Beneficial effects of the present invention: the single-hub straight-pull winch, the cable arranger, the first redirecting pulley, the first guide pulley, the traction winch, the cable slack compensator, the right-angle cable arranger and the cable storage winch are arranged on the test bench of the present invention; an infrared rangefinder is arranged on the right side of the single-hub straight-pull winch, an infrared probe is arranged on the infrared rangefinder, and an infrared rangefinder is arranged on the right side of the single-hub straight-pull winch. The infrared probe on the infrared rangefinder collects the deformation of the cable on the second drum of the single-hub straight-pull winch, and the collected data is sent to the control unit for test analysis, so that the preload and tension of the cable on the second drum led out of the single-hub straight-pull winch can be monitored;

[0014] A screw rod is provided in the guide shaft, one end of which extends out of the second bracket and is connected to the output end of the servo motor through an elastic coupling. A fourth guide pulley sliding seat is sleeved between the outer sides of the symmetrically arranged guide shafts. The inner side of the fourth guide pulley sliding seat passes through the guide shaft and is connected to the screw rod. The fourth guide pulley sliding seat is provided with a transmission column arranged in parallel horizontally, so that the cable can pass longitudinally. The screw rod is then adjusted by the servo motor, thereby driving the fourth guide pulley sliding seat to move up and down, thereby adjusting the tightness of the cable.

[0015] A first hydraulic cylinder is provided at the end of the first mounting bracket on the cable slack compensator, and the output end of the first hydraulic cylinder is connected to the movable bracket. A second hydraulic cylinder is symmetrically arranged between the third bracket and the fourth bracket, so that the position of the rotating wheel of the cable slack compensator can be adjusted, thereby adjusting the tightness of the cable;

[0016] The cable is made of synthetic fiber cable, which can solve the problem of excessive weight of steel cable;

[0017] One side of the traction winch is equipped with a cable slack compensator, a right-angle cable arranger and a cable storage winch, and the other side of the traction winch is equipped with a rope deformation detection device. The rope deformation detection device detects the diameter of the cable wound on the first drum and the second redirecting pulley on the traction winch, and sends the detection data to the various modules of the control unit for test analysis, thereby effectively controlling the tension of the cable and solving the problem of unstable coupling of the winch system due to cable tension and pre-tightening during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 is a top view of the winch retraction and extension reliability test system of the present invention;

[0020] Figure 2 This is a front view of the winch retraction and extension reliability test system of the present invention;

[0021] Figure 3 1. It is a top view of the right-angle cable arranger of the winch retraction and extension reliability test system of the present invention;

[0022] Figure 4 This is a control diagram of a single-hub straight-pull winch system of a winch retraction and extension reliability test system of the present invention;

[0023] Figure 5This is a control diagram of a cable storage winch system of a winch retracting and extending reliability test system of the present invention;

[0024] In the figure: 1-cable, 2-test bench, 3-single hub straight pull winch, 4-cable arranger, 5-first redirecting pulley, 6-first guide pulley, 7-traction winch, 8-cable slack compensator, 9-right-angle cable arranger, 10-cable storage winch, 11-rope deformation detection device, 12-second redirecting pulley, 13-second guide pulley, 14-third guide pulley, 15-infrared rangefinder, 31-second frame, 32-second drum, 33-second drive motor, 71-first frame, 72-first reel, 73-first drive motor, 81-first mounting bracket, 82-second mounting bracket, 83-movable bracket, 84-rotating wheel, 85-first hydraulic cylinder, 91-first bracket, 92-second bracket, 93-guide shaft, 94-servo motor, 95-screw, 96-fourth guide pulley sliding seat, 97-transmission column, 98-fourth guide pulley, 151-infrared probe, 811-third bracket, 812-fourth bracket, 813-second hydraulic cylinder. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the invention in conjunction with the drawings in the specification of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0026] In a specific embodiment of the present invention, Figure 1-Figure 5 As shown, a winch retraction and deployment reliability test system is specifically disclosed, which includes a control unit, a cable 1, a test bench 2, and a single-hub straight-pull winch 3, a cable arranger 4, a first redirecting pulley 5, a first guide pulley 6, a traction winch 7, a cable slack compensator 8, a right-angle cable arranger 9 and a cable storage winch 10 arranged in sequence on the test bench 2. The cable 1 is a synthetic fiber cable. A rope deformation detection device 11 is provided between the first guide pulley 6 and the traction winch 7. A second redirecting pulley 12, a second guide pulley 13 and a third guide pulley 14 are provided between the traction winch 7 and the cable slack compensator 8. The third guide pulley 14 is composed of two second guide pulleys arranged in parallel up and down. An infrared rangefinder 15 is provided on the right side of the single-hub straight-pull winch 3.

[0027] One end of the cable 1 is tied to the single-hub straight-pull winch 3, and the other end is passed through the cable arranger 4, the first redirecting pulley 5, the first guide pulley 6, the rope deformation detection device 11, the traction winch 7, the second redirecting pulley 12, the second guide pulley 13, the third guide pulley 14, the cable slack compensator 8 and the right-angle cable arranger 9 in sequence, and is tied to the cable storage winch 10.

[0028] The traction winch 7 includes a first frame 71 , a first drum 72 arranged in parallel on the first frame 71 , and two first driving motors 73 connected to ends of the first drum 72 .

[0029] The single-hub straight-pull winch 3 and the cable storage winch 10 include a second frame 31 , a second drum 32 provided on the second frame 31 , and a second drive motor 33 .

[0030] The right-angle cable arranger 9 includes a first bracket 91, a second bracket 92, a guide shaft 93 symmetrically arranged between the first bracket 91 and the second bracket 92, and a servo motor 94, wherein a screw rod 95 is provided in one of the guide shafts 93, one end of the screw rod 95 extends out of the second bracket 92 and is connected to the output end of the servo motor 94 through an elastic coupling, a fourth guide pulley sliding seat 96 is sleeved between the outer sides of the symmetrically arranged guide shafts 93, the inner side of the fourth guide pulley sliding seat 96 passes through the guide shaft 93 and is connected to the screw rod 95, the fourth guide pulley sliding seat 96 is provided with a transmission column 97 arranged in parallel laterally, the fourth guide pulley sliding seat 96 is mounted with a fourth guide pulley 98, and the fourth guide pulley 98 is connected to the fourth guide pulley sliding seat 96 by a pin.

[0031] The cable arranger 4 includes a first bracket, a second bracket, a guide shaft symmetrically arranged between the first bracket and the second bracket, and a servo motor, wherein a screw rod is provided in one of the guide shafts, one end of the screw rod extends out of the second bracket and is connected to the output end of the servo motor through an elastic coupling, a fourth guide pulley sliding seat is sleeved between the outer sides of the symmetrically arranged guide shafts, the inner side of the fourth guide pulley sliding seat passes through the guide shaft and is connected to the screw rod, and a transmission column arranged longitudinally in parallel is provided on the fourth guide pulley sliding seat.

[0032] The cable slack compensator 8 includes a first mounting frame 81, a second mounting frame 82, a movable bracket 83 and a rotating wheel 84. One end of the movable bracket 83 is installed on the first mounting frame 81 and the second mounting frame 82. A first hydraulic cylinder 85 is provided at the end of the first mounting frame 81. The output end of the first hydraulic cylinder 85 is connected to the movable bracket 83. The rotating wheel 84 is set on the movable bracket 83 through a rotating shaft.

[0033] The first mounting frame 81 and the second mounting frame 82 include a third bracket 811 , a fourth bracket 812 , and a second hydraulic cylinder 813 symmetrically disposed between the third bracket 811 and the fourth bracket 812 .

[0034] The infrared rangefinder 15 is provided with an infrared probe 151 , and the infrared probe 151 is aligned with the cable 1 tied to the second drum 32 .

[0035] The rope deformation detection device 11 includes a detection box, an adjustment bracket and three sensor fixing seats. A rope threading cavity is provided in the adjustment bracket. The rope threading cavity is located in the middle of the three sensor fixing seats. Each sensor fixing seat is provided with a laser line profile sensor.

[0036] The control unit includes a CPU module and an A / D module, a D / A module, a PT temperature module, an RS485 module, a DO module, a CAN communication module and a DI module connected to the CPU module. The control unit controls the single-hub straight-pull winch 3, the cable arranger 4, the traction winch 7, the cable slack compensator 8, the right-angle cable arranger 9 and the cable storage winch 10.

[0037] The A / D module is used to collect signals transmitted by the traction tension sensor on the traction winch 7, the cable storage tension sensor on the cable storage winch 10, the handle potentiometer connected to the first drive motor 73 and the second drive motor 33, and the pump station pressure sensor connected to the first hydraulic cylinder 85 and the second hydraulic cylinder 813;

[0038] The CAN communication module reads the current, frequency, and torque signals of the first drive motor 73 from the traction inverter on the traction winch 7, and the current, frequency, and torque signals of the second drive motor 33 from the cable storage inverter on the cable storage winch 10; the encoder of the first drive motor 73 is used to read the rotational speed of the first drive motor 73, and the encoder of the second drive motor 33 is used to read the rotational speed of the second drive motor 33;

[0039] The A / D module is used to collect signals transmitted by the frequency converter speed setting potentiometer and the frequency converter torque setting potentiometer on the cable storage winch 10;

[0040] The D / A module is used to convert the frequency or ammeter data of the proportional controller on the single-hub straight-pull winch 3 and the frequency converter on the cable storage winch 10;

[0041] The PT temperature module collects the shaft temperatures of the two first drive motors 73 and the two second drive motors 33;

[0042] The RS485 module is used to collect signals and data output by the encoder connected to the second drum 32 on the single-hub straight-pull winch 3 and the cable storage winch 10, and the encoder connected to the lead screw 95 on the cable arranger 4 and the right-angle cable arranger 9;

[0043] The DO module outputs signals to control the operation of the two first drive motors 73 and the two second drive motors 33, and modulate their pulse frequency and pulse direction; it can also be used to drive the opening of the first hydraulic cylinder 85 and the second hydraulic cylinder 813, the forward rotation, reverse rotation and torque mode of the frequency converter on the cable storage winch 10, and output the fault alarm to the control unit, which clears the rope length encoder and resets the fault.

[0044] The control unit collects the operating status of the test system and transmits the collected torque and speed signals to the AD module through the traction tension sensor on the traction winch 7, the cable storage tension sensor on the cable storage winch 10, the handle potentiometer connected to the first drive motor 73 and the second drive motor 33, and the pump station pressure sensor connected to the first hydraulic cylinder 85 and the second hydraulic cylinder 813;

[0045] The control unit collects the torque and speed of the cable 1 tied to the single-hub straight-pull winch 3 through the infrared rangefinder 15;

[0046] The cable storage torque and speed signals between the traction winch 7, the second redirecting pulley 12, the second guide pulley 13, the third guide pulley 14, the cable slack compensator 8, the right-angle cable arranger 9 and the cable storage winch 10 are collected by the laser displacement sensor on the rope deformation detection device 11 and transmitted to the AD module.

[0047] The torque and speed of the traction tension on the cable arranger 4, the first redirecting pulley 5, the first guide pulley 6, the rope deformation detection device 11 and the traction winch 7 are input into the AD module through the traction tension sensor, the cable storage tension sensor and the pump station pressure sensor;

[0048] The control unit transmits the collected cable storage inverter frequency division signals, circuit breaker protection signals, emergency stop signals, high and low speed switching signals, on and off signals of each heating switch, servo cable arrangement left / right / automatic mode, traction or cable storage cable retraction and release linkage signals, cable storage winch belt brake signals, pump station start or stop signals, inverter fault signals, traction or cable storage motor brake opening signals, cable arrangement device left and right limit signals, slack compensator upper or lower limit signals, and pump station alarm signals to the CPU module of the control unit through the DI module;

[0049] During the cable reeling and unreeling process, the CPU module of the control unit starts the traction inverter on the single-hub straight-pull winch 3 and the traction winch 7 through the CAN communication module, and sets the control mode of the inverter to torque control and speed control. The CPU module sets the control mode of the screw 95 inverter on the cable arranger 4 and the right-angle cable arranger 9 to speed control through the CAN communication module. The CPU module starts the cable storage inverter on the cable storage winch 10 through the CAN communication module and sets the control mode of the cable storage inverter to torque control. The CPU module in the control unit sends the collected data to the DI module. The I module analyzes the collected torque and speed data. After the analysis is completed, when the torque and speed of the cable 1 and the protection signals of each circuit breaker fluctuate, the DI module adjusts the cable-releasing speed of the handle potentiometer connected to the first drive motor 73 and the second drive motor 33 on the single-hub straight-pull winch 3, the traction winch 7 and the cable storage winch 10 according to the data changes, adjusts the frequency division of the cable storage inverter connected to the cable storage winch 10, adjusts the position of the fourth guide pulley sliding seat on the cable arranger 4 and the fourth guide pulley sliding seat 96 on the right-angle cable arranger 9, and adjusts the longitudinal upper and lower limit positions of the cable slack compensator 8;

[0050] The control unit adjusts and controls the signals transmitted by the single-hub straight-pull winch 3, cable arranger 4, traction winch 7, cable slack compensator 8, right-angle cable arranger 9 and cable storage winch 10, the high-speed switching of each component, the opening and closing of each heating switch, the left / right / automatic mode of the servo cable arranger, the traction / cable storage retracting / releasing linkage, the cable storage winch belt brake, the pump station start / stop inverter fault signal, the traction / cable storage motor brake opening signal, the left and right limit of the cable arranger, the upper / lower limit of the slack compensator, and the pump station alarm signal, so that the test system operates in a fault-free and alarm-free state until the cable storage winch 10 completes the storage of all the cables 1 and stops.

[0051] Parking process: In the case of non-cable asynchrony and emergency parking in non-alarm state, manual parking is when the touch screen transmits a signal to the CAN communication module through the CPU module of the control unit. The CAN communication module sets the traction inverter torque on the traction winch 7 to 0, the traction inverter speed to 0, the speed of the lead screw 95 and the servo motor 94 on the cable arranger 4 and the right-angle cable arranger 9 to 0, and then sets the cable storage inverter torque on the cable storage winch 10 to 0, and the system stops smoothly.

[0052] The working process of the present invention is as follows: the other end of the cable 1 attached to the second drum 32 of the single-hub straight-pull winch 3 is passed sequentially around the transmission posts arranged longitudinally in parallel on the cable arranger 4, the first redirecting pulley 5, the first guide pulley 6, the second redirecting pulley 12, the first drum 72 of the traction winch 7, the rope threading cavity of the rope deformation detection device 11, the second guide pulley 13, the third guide pulley 14, the rotating wheel 84 of the cable slack compensator 8, and the transmission posts 97 arranged transversely in parallel on the right-angle cable arranger 9, and then passes downward around the fourth guide pulley 98, so that the cable 1 is wound at a right angle and then is wound around the second drum 32 of the cable storage winch 10;

[0053] During the tensioning process, the infrared probe 151 on the infrared rangefinder 15 detects the arrangement state of the cable 1 on the second drum 32 of the single-hub straight-pull winch 3, and feeds the detection data back to the control unit for calculation and analysis. The control unit performs real-time adaptive cable arrangement adjustment on the winch retraction and extension system.

[0054] The present invention can achieve the test requirement of continuous operation of the winch retraction and extension system for more than 300 hours, fully verify the overall operational reliability of the winch retraction and extension system, and provide strong technical support for performance improvement and operational stability of the winch retraction and extension system.

[0055] The above disclosure is only a preferred embodiment of the present invention and certainly cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope of the present invention.

Claims

1. A winch retraction and extension reliability test system, characterized in that: The invention comprises a cable (1), a test bench (2), and a single-hub straight-pull winch (3), a cable arranger (4), a first redirecting pulley (5), a first guide pulley (6), a traction winch (7), a cable slack compensator (8), a right-angle cable arranger (9) and a cable storage winch (10) which are sequentially arranged on the test bench (2); a rope deformation detection device (11) is provided between the first guide pulley (6) and the traction winch (7); a second redirecting pulley (12), a second guide pulley (13) and a third guide pulley (14) are provided between the traction winch (7) and the cable slack compensator (8); The three guide pulleys (14) are composed of two second guide pulleys arranged in parallel up and down. An infrared rangefinder (15) is provided on the right side of the single-hub straight-pull winch (3). One end of the cable (1) is tied to the single-hub straight-pull winch (3), and the other end is passed through the cable arranger (4), the first redirecting pulley (5), the first guide pulley (6), the rope deformation detection device (11), the traction winch (7), the second redirecting pulley (12), the second guide pulley (13), the third guide pulley (14), the cable slack compensator (8) and the right-angle cable arranger (9) in sequence, and is then tied to the cable storage winch (10). The rope deformation detection device (11) comprises a detection box, an adjustment bracket and three sensor fixing seats, wherein a rope threading cavity is provided in the adjustment bracket and the rope threading cavity is located in the middle of the three sensor fixing seats, and each sensor fixing seat is provided with a laser line profile sensor; The test system further comprises a control unit, which comprises a CPU module and an A / D module, a D / A module, a PT temperature module, an RS485 module, a DO module, a CAN communication module and a DI module connected to the CPU module. The control unit controls the single-hub straight-pull winch (3), a cable arranger (4), a traction winch (7), a cable slack compensator (8), a right-angle cable arranger (9) and a cable storage winch (10).

2. A winch retraction and extension reliability test system according to claim 1, characterized in that: The traction winch (7) comprises a first frame (71), a first drum (72) arranged in parallel on the first frame (71), and two first drive motors (73) connected to the ends of the first drum (72).

3. A winch retraction and extension reliability test system according to claim 1, characterized in that: The single-hub straight-pull winch (3) and the cable storage winch (10) comprise a second frame (31), a second drum (32) arranged on the second frame (31), and a second drive motor (33).

4. A winch retraction and extension reliability test system according to claim 1, characterized in that: The right-angle cable arranger (9) comprises a first bracket (91), a second bracket (92), a guide shaft (93) symmetrically arranged between the first bracket (91) and the second bracket (92), and a servo motor (94), wherein a screw rod (95) is arranged in one of the guide shafts (93), one end of the screw rod (95) extends out of the second bracket (92) and is connected to the output end of the servo motor (94) through an elastic coupling, a fourth guide pulley sliding seat (96) is sleeved between the outer sides of the symmetrically arranged guide shafts (93), the inner side of the fourth guide pulley sliding seat (96) passes through the guide shaft (93) and is connected to the screw rod (95), the fourth guide pulley sliding seat (96) is provided with a transmission column (97) arranged in parallel in a transverse direction, the fourth guide pulley sliding seat (96) is installed with a fourth guide pulley (98), and the fourth guide pulley (98) and the fourth guide pulley sliding seat (96) are connected by a pin shaft.

5. A winch retraction and extension reliability test system according to claim 1, characterized in that: The cable slack compensator (8) includes a first mounting frame (81), a second mounting frame (82), a movable bracket (83) and a rotating wheel (84), one end of the movable bracket (83) is mounted on the first mounting frame (81) and the second mounting frame (82), a first hydraulic cylinder (85) is provided at the end of the first mounting frame (81), an output end of the first hydraulic cylinder (85) is connected to the movable bracket (83), and the rotating wheel (84) is arranged on the movable bracket (83) through a rotating shaft.

6. A winch retraction and extension reliability test system according to claim 5, characterized in that: The first mounting frame (81) and the second mounting frame (82) include a third bracket (811), a fourth bracket (812), and a second hydraulic cylinder (813) symmetrically arranged between the third bracket (811) and the fourth bracket (812).

7. A winch retraction and extension reliability test system according to claim 1, characterized in that: The cable (1) is a synthetic fiber cable.

8. A winch retraction and extension reliability test system according to claim 3, characterized in that: The infrared rangefinder (15) is provided with an infrared probe (151), and the infrared probe (151) is aligned with the cable (1) tied to the second drum (32).

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