A device for verifying the safety of a pull cord displacement sensor at high speed

Abstract

A device for verifying the safety of a pull rope displacement sensor under high-speed motion, the top of a test rack is connected with the bottom of a sensor support seat, the top of the sensor support seat is provided with a pull rope displacement sensor, the left end of the pull rope displacement sensor is connected with the right end of a displacement sensor mounting seat, the left end of the displacement sensor mounting seat is provided with a buffer pad, the bottom of the displacement sensor mounting seat is connected with the top of the test rack, and the top of the test rack is connected with the bottom of a support plate; the reel inside the pull rope displacement sensor is connected with one end of a steel wire rope, the other end of the steel wire rope is connected with one end of a steel wire rope leading end, the other end of the steel wire rope leading end is inserted into the support plate; the bottom of the support plate is connected with the top of the test rack, and a guide rod is arranged between the steel wire rope leading end and the displacement sensor mounting seat. The present application can not only detect the maximum impact force borne by the pull rope displacement sensor, but also adapt to the detection of different maximum impact force hydraulic oil cylinders.

Description

Technical Field

[0001] This invention relates to an improvement in the detection technology of a pull-string displacement sensor, belonging to the field of sensors, and particularly to a device for verifying the safety of a pull-string displacement sensor under high-speed motion. Background Technology

[0002] A draw-wire displacement sensor is a device that converts mechanical motion into electrical signals. It is commonly used for displacement detection in automation systems and is also widely used in hydraulic cylinder displacement detection. It is used to accurately detect and control the stroke of the cylinder piston rod. The draw-wire displacement sensor has a steel wire rope fixed to the cylinder piston by a fixing device, and the other end is fixed to the tail of the cylinder. When the piston runs at high speed, the steel wire rope may break due to excessive impact force. If the steel wire rope breaks inside the cylinder, it will damage the cylinder and make it unable to work. Therefore, before using a draw-wire displacement sensor to detect hydraulic cylinders, it is necessary to test the maximum impact force that the draw-wire displacement sensor can withstand, since it is uncertain whether the steel wire rope on the draw-wire displacement sensor can withstand the impact force of the hydraulic cylinder piston.

[0003] Chinese patent application CN202311413432.0, filed on October 30, 2023, discloses a self-protective pull-cord displacement sensor and its usage method. This effectively solves the problems of misalignment on the winding wheel during pull-cord displacement, causing a change in the linear proportional relationship between pull-cord displacement and angle change, increasing the measurement failure rate, and affecting positioning stability. It also addresses the issues of excessive rewinding force of the pull-cord steel wire rope, which can cause injury to the user, and wear on the deceleration component leading to reduced deceleration effect and damage to internal components, including the encoder. The encoder has a housing on one side, a fixing plate at the bottom, and a shell on one side. Inside the housing is a take-up assembly, including a cable routing assembly. Both sides of the take-up assembly have deceleration components, and one side of the housing has an inlet pipe. This solution makes the displacement sensor more stable and safer to use. However, the above solution does not solve the problem of not being able to detect the maximum impact force that the pull-cord displacement sensor can withstand.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this patent application and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to overcome the problem in the prior art that the maximum impact force that the pull-string displacement sensor can withstand cannot be detected, and to provide a device for verifying the safety of the pull-string displacement sensor under high-speed movement by detecting the maximum impact force that the pull-string displacement sensor can withstand.

[0006] To achieve the above objectives, the technical solution of the present invention is: a device for verifying the safety of a pull-rope displacement sensor under high-speed motion, the device comprising a test frame, a wire rope lead-out end, a guide rod, a displacement sensor mounting base, a pull-rope displacement sensor, a sensor support base, and a data recorder;

[0007] The top of the test frame is connected to the bottom of the sensor support base. A pull rope displacement sensor is installed on the top of the sensor support base. The left end of the pull rope displacement sensor is connected to the right end of the displacement sensor mounting base. A buffer pad is installed on the left end of the displacement sensor mounting base. The bottom of the displacement sensor mounting base is connected to the top of the test frame. The top of the test frame is connected to the bottom of the support plate.

[0008] The drum inside the pull rope displacement sensor is connected to one end of the wire rope, the other end of the wire rope is connected to one end of the wire rope lead-out end, and the other end of the wire rope lead-out end is inserted into the support plate.

[0009] The bottom of the support plate is connected to the top of the test frame, and a guide rod is provided between the wire rope lead-out end and the displacement sensor mounting base;

[0010] The lead-out end of the wire rope reciprocates along the guide rod, and the guide rod is arranged parallel to the wire rope.

[0011] The rope displacement sensor is connected to the data logger.

[0012] The left side of the pull rope displacement sensor has an opening, and an annular baffle is provided inside the opening. A connection area is provided at the center of the baffle.

[0013] One end of the wire rope passes through the opening and is connected to the drum inside the rope displacement sensor.

[0014] The rope displacement sensor is connected to the side of the displacement sensor mounting base by bolts.

[0015] The height of the sensor support base is less than the height between the bottom of the outer circle of the right end of the pull rope displacement sensor and the test frame.

[0016] The support plate includes a support base and an upright plate. The top of the support base is connected to the bottom of the upright plate. The support base and the upright plate are vertically arranged. The front and rear ends of the top of the support base are connected to the top of the test frame by fixing bolts.

[0017] The side of the upright plate is provided with a fixing hole, the left end of the guide rod is connected to the right end of the connecting shaft, and the left end of the connecting shaft is inserted into the fixing hole.

[0018] The wire rope lead-out end includes a traction head, a traction plate, and a wire rope fixed end. The left side of the traction plate is connected to the right side of the traction head. The wire rope fixed end is inserted into the left side of the traction plate. The right end of the wire rope fixed end passes through the traction plate and is connected to one end of the wire rope.

[0019] The fixed end of the wire rope is located below the traction head.

[0020] The longitudinal sections of the traction head and traction plate are both circular, and the traction head, traction plate, and guide rod are located at the same center.

[0021] The left end of the connecting shaft passes through the traction plate and the traction head in sequence before being inserted into the fixing hole.

[0022] The displacement sensor mounting base includes a support base plate, a support column, and a connecting part. The top of the support base plate is connected to the bottom of the support column, and the top of the support column is connected to the bottom of the connecting part.

[0023] The right side of the connector is connected to the left side of the pull rope displacement sensor, and a buffer pad is provided on the left side of the connector.

[0024] The connecting part is connected to the rope displacement sensor by multiple sets of connecting bolts;

[0025] All the connecting bolts are arranged in a ring.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0027] 1. In this invention, a device for verifying the safety of a rope displacement sensor under high-speed motion is provided. The internal drum of the rope displacement sensor is connected to one end of a steel wire rope, and the other end of the steel wire rope is connected to one end of a steel wire rope lead-out end. The other end of the steel wire rope lead-out end is inserted into a support plate. The bottom of the support plate is connected to the top of the test frame. A guide rod is provided between the steel wire rope lead-out end and the displacement sensor mounting base. The steel wire rope lead-out end reciprocates along the guide rod, which is parallel to the steel wire rope. The rope displacement sensor is connected to a data recorder. In application, the steel wire rope lead-out end is slowly pulled along the guide rod to a certain displacement and then quickly released. Under the force of the coil spring, the steel wire rope lead-out end quickly retracts. The data recorder collects the encoder readings and analyzes and calculates the speed and acceleration of the steel wire rope under high-speed winding conditions using built-in functions. Repeated tests are conducted, and the displacement of the steel wire rope lead-out end is adjusted. When the measurement... After the test speed reaches the actual operating conditions, i.e., the maximum impact force that the cable displacement sensor can withstand, it is then confirmed whether the mechanical components and detection points of the cable displacement sensor have failed. If there are no failures, the cable displacement sensor can be used normally; if it has failed, the cable displacement sensor cannot be used and needs to be repaired or replaced. Furthermore, when testing different types of hydraulic cylinders, since the maximum impact force varies among different types of hydraulic cylinders, this design only requires extending or reducing the extension of the wire rope lead-out end; no replacement of the detection device is needed. Then, the wire rope lead-out end is slowly pulled along the guide rod for a greater or lesser displacement before being quickly released. The wire rope lead-out end quickly retracts under the force of the coil spring, thereby adjusting the magnitude of the impact force on the wire rope, i.e., adjusting the maximum impact force that the cable displacement sensor can withstand. This better adapts to hydraulic cylinders with different speed requirements, resulting in higher detection efficiency and greater convenience. Therefore, this invention can not only detect the maximum impact force that the cable displacement sensor can withstand but also adapt to the detection of hydraulic cylinders with different maximum impact forces.

[0028] 2. In the device for verifying the safety of a pull-rope displacement sensor under high-speed movement according to the present invention, the top of the test frame is connected to the bottom of the sensor support base. A pull-rope displacement sensor is installed on the top of the sensor support base. The left end of the pull-rope displacement sensor is connected to the right end of the displacement sensor mounting base. A buffer pad is installed on the left end of the displacement sensor mounting base. In application, the buffer pad is used to isolate the wire rope lead-out end from the displacement sensor mounting base. The thickness of the buffer pad can be selected appropriately according to the impact kinetic energy of the wire rope lead-out end. The buffer pad absorbs the kinetic energy of the wire rope lead-out end impacting the displacement sensor mounting base during high-speed rope winding, effectively preventing mechanical damage caused by the wire rope lead-out end impacting the displacement sensor mounting base under the tension of the wire rope. Therefore, the present invention is safe to use and has good protective effect.

[0029] 3. In the device for verifying the safety of a rope displacement sensor under high-speed movement according to the present invention, a small amount of lubricating oil can be applied to the guide rod during the test. This further reduces the friction between the guide rod and the wire rope lead-out end. Reducing the frictional force at the wire rope lead-out end during operation allows for a more accurate reflection of the force applied to the wire rope lead-out end by the sensor's internal coil spring. This, in turn, allows for more accurate analysis and calculation of the speed and acceleration of the wire rope lead-out end. Therefore, the movement of the wire rope lead-out end in this invention is smoother and the testing is more convenient. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of the present invention.

[0031] Figure 2 This is a top view of the present invention.

[0032] Figure 3 This is a side view of the rope displacement sensor in this invention.

[0033] Figure 4 This is a schematic diagram of the structure of the wire rope lead-out end in this invention.

[0034] Figure 5 This is a schematic diagram of the displacement sensor mounting base in this invention.

[0035] In the diagram: 1. Test frame; 2. Support plate; 21. Support base; 22. Vertical plate; 23. Fixing bolt; 24. Fixing hole; 3. Wire rope lead-out end; 31. Traction head; 32. Traction plate; 33. Wire rope fixing end; 4. Guide rod; 6. Displacement sensor mounting base; 61. Support base plate; 62. Support column; 63. Connecting part; 64. Connecting bolt; 7. Pull rope displacement sensor; 71. Wire rope; 72. Baffle; 73. Connecting area; 74. Through port; 8. Sensor support base; 9. Data logger. Detailed Implementation

[0036] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] See Figures 1 to 5 A device for verifying the safety of a pull-rope displacement sensor under high-speed motion, the device comprising a test frame 1, a wire rope lead-out end 3, a guide rod 4, a displacement sensor mounting base 6, a pull-rope displacement sensor 7, a sensor support base 8, and a data recorder 9.

[0038] The top of the test frame 1 is connected to the bottom of the sensor support base 8. A pull rope displacement sensor 7 is provided on the top of the sensor support base 8. The left end of the pull rope displacement sensor 7 is connected to the right end of the displacement sensor mounting base 6. A buffer pad 5 is provided on the left end of the displacement sensor mounting base 6. The bottom of the displacement sensor mounting base 6 is connected to the top of the test frame 1. The top of the test frame 1 is connected to the bottom of the support plate 2.

[0039] The drum inside the pull rope displacement sensor 7 is connected to one end of the wire rope 71, the other end of the wire rope 71 is connected to one end of the wire rope lead-out end 3, and the other end of the wire rope lead-out end 3 is inserted into the support plate 2.

[0040] The bottom of the support plate 2 is connected to the top of the test frame 1, and a guide rod 4 is provided between the wire rope lead-out end 3 and the displacement sensor mounting base 6.

[0041] The lead-out end 3 of the steel wire rope reciprocates along the guide rod 4, and the guide rod 4 is arranged parallel to the steel wire rope 71.

[0042] The rope displacement sensor 7 is connected to the data logger 9 via signal.

[0043] The left side of the pull rope displacement sensor 7 has an opening 74, and an annular baffle 72 is provided inside the opening 74. A connecting area 73 is provided at the center of the baffle 72.

[0044] One end of the wire rope 71 passes through the opening 74 and is connected to the drum inside the rope displacement sensor 7.

[0045] The rope displacement sensor 7 is connected to the side of the displacement sensor mounting base 6 by bolts.

[0046] The height of the sensor support 8 is less than the height between the bottom of the outer circle of the right end of the pull rope displacement sensor 7 and the test frame 1.

[0047] The support plate 2 includes a support base 21 and an upright plate 22. The top of the support base 21 is connected to the bottom of the upright plate 22. The support base 21 and the upright plate 22 are vertically arranged. The front and rear ends of the top of the support base 21 are connected to the top of the test frame 1 by fixing bolts 23.

[0048] The side of the upright plate 22 is provided with a fixing hole 24. The left end of the guide rod 4 is connected to the right end of the connecting shaft 41, and the left end of the connecting shaft 41 is inserted into the fixing hole 24.

[0049] The wire rope lead-out end 3 includes a traction head 31, a traction plate 32 and a wire rope fixing end 33. The left side of the traction plate 32 is connected to the right side of the traction head 31. The wire rope fixing end 33 is inserted into the left side of the traction plate 32. The right end of the wire rope fixing end 33 passes through the traction plate 32 and is connected to one end of the wire rope 71.

[0050] The wire rope fixed end 33 is located below the traction head 31.

[0051] The longitudinal sections of the traction head 31 and the traction plate 32 are both circular, and the traction head 31, the traction plate 32, and the guide rod 4 are located at the same center.

[0052] The left end of the connecting shaft 41 passes through the traction plate 32 and the traction head 31 in sequence and is then inserted into the fixing hole 24.

[0053] The displacement sensor mounting base 6 includes a support base plate 61, a support column 62, and a connecting part 63. The top of the support base plate 61 is connected to the bottom of the support column 62, and the top of the support column 62 is connected to the bottom of the connecting part 63.

[0054] The right side of the connecting part 63 is connected to the left side of the pull rope displacement sensor 7, and a buffer pad 5 is provided on the left side of the connecting part 63.

[0055] The connecting part 63 is connected to the rope displacement sensor 7 by multiple sets of connecting bolts 64;

[0056] All the connecting bolts 64 are arranged in a ring.

[0057] The following are supplementary descriptions of the present invention:

[0058] The cable is used to connect the wire rope displacement sensor 7 and the data logger 9. The data logger 9 can sample, display, store and analyze the 4-20mA analog signal output by the encoder of the wire rope displacement sensor 7, so as to analyze the relevant performance of the tested system. The speed and acceleration of the wire rope under high-speed winding conditions are obtained by analyzing and calculating the built-in functions of the data logger 9.

[0059] Example 1:

[0060] A device for verifying the safety of a pull-rope displacement sensor under high-speed motion includes a test frame 1, a wire rope lead-out end 3, a guide rod 4, a displacement sensor mounting base 6, a pull-rope displacement sensor 7, a sensor support base 8, and a data logger 9. The top of the test frame 1 is connected to the bottom of the sensor support base 8. The pull-rope displacement sensor 7 is mounted on the top of the sensor support base 8. The left end of the pull-rope displacement sensor 7 is connected to the right end of the displacement sensor mounting base 6. A buffer pad 5 is provided on the left end of the displacement sensor mounting base 6. The bottom of the displacement sensor mounting base 6 is connected to... The top of the test frame 1 is connected to the bottom of the support plate 2; the drum inside the pull rope displacement sensor 7 is connected to one end of the wire rope 71, and the other end of the wire rope 71 is connected to one end of the wire rope lead-out end 3, which is inserted into the support plate 2; the bottom of the support plate 2 is connected to the top of the test frame 1, and a guide rod 4 is provided between the wire rope lead-out end 3 and the displacement sensor mounting base 6; the wire rope lead-out end 3 reciprocates along the guide rod 4, and the guide rod 4 is arranged parallel to the wire rope 71; the pull rope displacement sensor 7 is connected to the data recorder 9.

[0061] In application: Pull the wire rope lead-out end 3 to move it to the left along the guide rod 4. At the same time, the wire rope 71 will move synchronously with the wire rope lead-out end 3. Under the action of the drum of the rope displacement sensor 7, the wire rope 71 remains parallel to the guide rod 4. Slowly pull the wire rope lead-out end 3 and observe whether the data collected by the data recorder 9 is normal. Quickly release the wire rope lead-out end 3 and calculate the speed and acceleration of this displacement (about 50mm) through analysis. By pulling a small displacement in the preliminary test, the assembly and data acquisition functions of the device are verified to be normal. In order to achieve the required rope winding speed and acceleration... The speed requirement is to increase the displacement of the wire rope lead-out end 3, and then quickly release the wire rope lead-out end 3. The data logger 9 collects the 4-20mA analog signal from the encoder of the rope displacement sensor 7 and analyzes and calculates it to obtain the speed and acceleration of the wire rope during winding. This test is repeated multiple times to verify the reliability of the rope displacement sensor 7. After the high-speed condition verification is completed, check the appearance of the test device and the rope displacement sensor 7 for any abnormalities. Slowly pull the wire rope lead-out end 3 and observe whether the data collected by the data logger 9 is abnormal. If there are no abnormalities, the rope winding function of the rope displacement sensor 7 is deemed to have passed the verification.

[0062] Example 2:

[0063] Example 2 is basically the same as Example 1, except that:

[0064] The left side of the pull rope displacement sensor 7 has an opening 74, and an annular baffle 72 is provided inside the opening 74. A connecting area 73 is provided at the center of the baffle 72. One end of the wire rope 71 passes through the opening 74 and is connected to the drum inside the pull rope displacement sensor 7. The pull rope displacement sensor 7 is connected to the side of the displacement sensor mounting base 6 by bolts. The height of the sensor support base 8 is less than the height between the bottom of the outer circle of the right end of the pull rope displacement sensor 7 and the test frame 1.

[0065] In application: The height of the sensor support 8 is designed to be slightly lower than the lowest point of the outer circle of the support part of the rope displacement sensor 7. This can prevent the displacement sensor 7 from not contacting the sensor support 8 after it is connected and tightened with the displacement sensor mounting base 6, and prevent the sensor support 8 from damaging the rope displacement sensor 7.

[0066] Example 3:

[0067] Example 3 is basically the same as Example 1, except that:

[0068] The support plate 2 includes a support base 21 and an upright plate 22. The top of the support base 21 is connected to the bottom of the upright plate 22. The support base 21 and the upright plate 22 are vertically arranged. The front and rear ends of the top of the support base 21 are connected to the top of the test frame 1 by fixing bolts 23. The side of the upright plate 22 is provided with fixing holes 24. The left end of the guide rod 4 is connected to the right end of the connecting shaft 41. The left end of the connecting shaft 41 is inserted into the fixing hole 24.

[0069] In application: The guide rod 4 passes through the through hole in the middle of the wire rope lead-out end 3 and is fixed in the threaded hole of the displacement sensor mounting base 6. In order to keep the guide rod 4 horizontal, a support plate 2 is set on the machining 1. The center of the through hole on the support plate 2 is at the same height as the center of the threaded hole in the middle part of the displacement sensor mounting base 6. The fit between the guide rod 4 and the wire rope lead-out end 3 adopts a clearance fit. When the wire rope lead-out end 3 runs, it keeps running in a straight line under the guidance of the guide rod 4, so that the wire rope can be wound up in a straight line.

[0070] Example 4:

[0071] Example 4 is basically the same as Example 1, except that:

[0072] The wire rope lead-out end 3 includes a traction head 31, a traction plate 32, and a wire rope fixing end 33. The left side of the traction plate 32 is connected to the right side of the traction head 31. The wire rope fixing end 33 is inserted into the left side of the traction plate 32. The right end of the wire rope fixing end 33 passes through the traction plate 32 and is connected to one end of the wire rope 71. The wire rope fixing end 33 is located below the traction head 31. The longitudinal section of the traction head 31 and the traction plate 32 is circular, and the traction head 31, the traction plate 32, and the guide rod 4 are located at the same center. The left end of the connecting shaft 41 passes through... The traction plate 32 and traction head 31 are then inserted into the fixing hole 24; the displacement sensor mounting base 6 includes a supporting base plate 61, a supporting column 62, and a connecting part 63. The top of the supporting base plate 61 is connected to the bottom of the supporting column 62, and the top of the supporting column 62 is connected to the bottom of the connecting part 63; the right side of the connecting part 63 is connected to the left side of the pull rope displacement sensor 7, and a buffer pad 5 is provided on the left side of the connecting part 63; the connecting part 63 and the pull rope displacement sensor 7 are connected by multiple sets of connecting bolts 64; all the connecting bolts 64 are arranged in a ring.

[0073] In application: The guide rod 4 is made of aluminum bronze, which can effectively reduce the friction between the guide rod 4 and the wire rope lead-out end 3. During the test, a small amount of lubricating oil can be applied to the guide rod 4 to further reduce the friction between the guide rod 4 and the wire rope lead-out end 3. Reducing the friction force of the wire rope lead-out end 3 during operation can more accurately reflect the force applied to the wire rope lead-out end 3 by the inner coil spring of the sensor, thereby enabling more accurate analysis and calculation of the velocity and acceleration of the wire rope lead-out end 3. The buffer pad 5 is used to isolate the wire rope lead-out end 3 from the displacement sensor mounting base 6. The thickness of the buffer pad 5 can be selected according to the impact kinetic energy of the wire rope lead-out end 3. The buffer pad 5 is used to absorb the kinetic energy of the wire rope lead-out end 3 impacting the displacement sensor mounting base 6 during high-speed rope winding, which can effectively prevent mechanical damage caused by the wire rope lead-out end 3 impacting the displacement sensor mounting base 6 under the traction of the wire rope tension.

[0074] The above description is only a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. Any equivalent modifications or changes made by those skilled in the art based on the content disclosed in the present invention should be included within the scope of protection set forth in the claims.

Claims

1. A device for verifying the safety of a rope displacement sensor under high-speed motion, characterized in that: The device for verifying the safety of the draw rope displacement sensor under high-speed movement includes a test frame, a wire rope lead-out end, a guide rod, a displacement sensor mounting base, a draw rope displacement sensor, a sensor support base, and a data recorder. The top of the test frame is connected to the bottom of the sensor support base. A pull rope displacement sensor is installed on the top of the sensor support base. The left end of the pull rope displacement sensor is connected to the right end of the displacement sensor mounting base. A buffer pad is installed on the left end of the displacement sensor mounting base. The bottom of the displacement sensor mounting base is connected to the top of the test frame. The top of the test frame is connected to the bottom of the support plate. The drum inside the pull rope displacement sensor is connected to one end of the wire rope, the other end of the wire rope is connected to one end of the wire rope lead-out end, and the other end of the wire rope lead-out end is inserted into the support plate. The bottom of the support plate is connected to the top of the test frame, and a guide rod is provided between the wire rope lead-out end and the displacement sensor mounting base; The lead-out end of the wire rope reciprocates along the guide rod, and the guide rod is arranged parallel to the wire rope. The rope displacement sensor is connected to the data logger for signal transmission; The wire rope lead-out end includes a traction head, a traction plate, and a wire rope fixed end. The left side of the traction plate is connected to the right side of the traction head. The wire rope fixed end is inserted into the left side of the traction plate. The right end of the wire rope fixed end passes through the traction plate and is connected to one end of the wire rope. The fixed end of the wire rope is located below the traction head; The displacement sensor mounting base includes a support base plate, a support column, and a connecting part. The top of the support base plate is connected to the bottom of the support column, and the top of the support column is connected to the bottom of the connecting part. The right side of the connecting part is connected to the left side of the pull rope displacement sensor, and a buffer pad is provided on the left side of the connecting part; The method of using the device for verifying the safety of the cable displacement sensor under high-speed movement is as follows: Pull the lead-out end of the wire rope to move it to the left along the guide rod. Simultaneously, the wire rope will move synchronously with the lead-out end. Under the action of the rope displacement sensor's drum, the wire rope remains parallel to the guide rod. Slowly pull the lead-out end of the wire rope and observe whether the data recorder's data acquisition is normal. Quickly release the lead-out end of the wire rope and analyze and calculate the velocity and acceleration during this displacement. This preliminary test, pulling a small displacement, verifies whether the device's assembly and data acquisition functions are normal. This is to achieve the required rope winding speed and acceleration conditions for verification. The test involves increasing the displacement of the wire rope lead-out end, then quickly releasing it. A data logger collects and analyzes the 4-20mA analog signal from the encoder of the wire rope displacement sensor to determine the speed and acceleration of the wire rope during winding. This test is repeated multiple times to verify the reliability of the wire rope displacement sensor. After high-speed verification, the test setup and the appearance of the wire rope displacement sensor are checked for any abnormalities. The wire rope lead-out end is then slowly pulled, and the data collected by the data logger is observed for any abnormalities. If no abnormalities are found, the wire rope displacement sensor's winding function is deemed to have passed verification.

2. The device for verifying the safety of a rope displacement sensor under high-speed motion according to claim 1, characterized in that: The left side of the pull rope displacement sensor has an opening, and an annular baffle is provided inside the opening. A connection area is provided at the center of the baffle. One end of the wire rope passes through the opening and is connected to the drum inside the rope displacement sensor.

3. The device for verifying the safety of a rope displacement sensor under high-speed motion according to claim 2, characterized in that: The rope displacement sensor is connected to the side of the displacement sensor mounting base by bolts.

4. The device for verifying the safety of a rope displacement sensor under high-speed motion according to claim 3, characterized in that: The height of the sensor support base is less than the height between the bottom of the outer circle of the right end of the pull rope displacement sensor and the test frame 1.

5. The device for verifying the safety of a rope displacement sensor under high-speed motion according to claim 1, characterized in that: The support plate includes a support base and an upright plate. The top of the support base is connected to the bottom of the upright plate. The support base and the upright plate are vertically arranged. The front and rear ends of the top of the support base are connected to the top of the test frame by fixing bolts.

6. The device for verifying the safety of a rope displacement sensor under high-speed motion according to claim 5, characterized in that: The side of the upright plate is provided with a fixing hole, the left end of the guide rod is connected to the right end of the connecting shaft, and the left end of the connecting shaft is inserted into the fixing hole.

7. The device for verifying the safety of a rope displacement sensor under high-speed motion according to claim 6, characterized in that: The longitudinal sections of the traction head and traction plate are both circular, and the traction head, traction plate, and guide rod are located at the same center. The left end of the connecting shaft passes through the traction plate and the traction head in sequence before being inserted into the fixing hole.

8. The device for verifying the safety of a rope displacement sensor under high-speed motion according to claim 1, characterized in that: The connecting part is connected to the rope displacement sensor by multiple sets of connecting bolts; All the connecting bolts are arranged in a ring.

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