Device for verifying safety of pull rope displacement sensor in high-speed motion

Abstract

A device for verifying safety of a pull rope displacement sensor under high-speed motion is characterized in that the top of a test rack is connected with the bottom of a sensor supporting seat, the top of the sensor supporting seat is provided with the pull rope displacement sensor, and the left end of the pull rope displacement sensor is connected with the right end of a displacement sensor mounting seat; a buffer pad is arranged at the left end of the displacement sensor mounting seat, 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 the supporting plate; a winding drum in the pull rope displacement sensor is connected with one end of a steel wire rope, and the other end of the steel wire rope is connected with one end of a steel wire rope leading-out end which is inserted into a supporting plate. The bottom of the supporting plate is connected with the top of the test rack, and a guide rod is arranged between the leading-out end of the steel wire rope and the displacement sensor mounting seat. According to the invention, the maximum impact force borne by the pull rope displacement sensor can be detected, and the detection of hydraulic oil cylinders with different maximum impact forces can be adapted.

Description

Technical Field

[0001] The invention relates to an improvement in detection technology of a pull-rope displacement sensor, belongs to the field of sensors, and in particular to a device for verifying the safety of a pull-rope displacement sensor under high-speed motion. Background Art

[0002] A rope-pull 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 to accurately detect and control the stroke of the cylinder piston rod. The rope-pull displacement sensor has a steel wire rope fixed to the cylinder piston through 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 the cylinder unable to work. Therefore, before using the rope-pull displacement sensor to detect the hydraulic cylinder, it is uncertain whether the steel wire rope on the rope-pull displacement sensor can withstand the impact force of the hydraulic cylinder piston. Therefore, the maximum impact force that the rope-pull displacement sensor can withstand needs to be tested before use.

[0003] A Chinese patent application with application number CN202311413432.0 and application date October 30, 2023 discloses a self-protecting rope-drawing displacement sensor and a method of use, which effectively solves the problem that the wire is not superimposed on the winding wheel in the set manner during the wire displacement process, causing the linear proportional relationship between the wire displacement and the angle change value to change, increasing the measurement failure rate, and affecting the positioning stability. The wire rope of the rope-drawing displacement sensor has a large reeling force, causing harm to the user, and the deceleration effect decreases due to wear of the deceleration component, causing damage to the components inside the device, including an encoder, a box body is provided on one side of the encoder, a fixing plate is provided on the bottom of the box body, a shell is provided on one side of the box body, a wire take-up assembly is provided inside the box body, the wire take-up assembly includes a wire arrangement assembly, and deceleration assemblies are provided on both sides of the wire take-up assembly. A wire inlet pipe is provided on one side of the box body. This scheme makes the displacement sensor more stable and safe during use, but the above scheme does not solve the problem that the maximum impact force that the rope-drawing displacement sensor can withstand cannot be detected.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of this patent application, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to ordinary technicians in this field. Summary of the invention

[0005] The purpose of the present invention is to overcome the problem in the prior art that the maximum impact force that a rope displacement sensor can withstand cannot be detected, and to provide a device that can detect the maximum impact force that a rope displacement sensor can withstand and verify the safety of the rope displacement sensor under high-speed movement.

[0006] To achieve the above objectives, the technical solution of the present invention is: a device for verifying the safety of a pull-wire displacement sensor under high-speed motion, the device for verifying the safety of a pull-wire displacement sensor under high-speed motion comprising a test frame, a wire rope lead-out end, a guide rod, a displacement sensor mounting seat, a pull-wire displacement sensor, a sensor support seat and a data recorder; The top of the test frame is connected to the bottom of the sensor support seat, a pull-wire displacement sensor is arranged on the top of the sensor support seat, the left end of the pull-wire displacement sensor is connected to the right end of the displacement sensor mounting seat, a buffer pad is arranged on the left end of the displacement sensor mounting seat, the bottom of the displacement sensor mounting seat is connected to the top of the test frame, and the top of the test frame is connected to the bottom of the support plate; The reel 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 plugged 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 lead-out end of the wire rope and the displacement sensor mounting seat; The lead-out end of the steel wire rope reciprocates along the guide rod, and the guide rod is arranged parallel to the steel wire rope; The pull rope displacement sensor is connected to the data recorder signal.

[0007] A through opening is provided on the left side of the pull rope displacement sensor, an annular baffle is provided in the through opening, and a connection area is provided at the center of the baffle; One end of the steel wire rope passes through the through hole and is connected to the drum inside the rope displacement sensor.

[0008] The pull-wire displacement sensor is connected to the side surface of the displacement sensor mounting seat by bolts.

[0009] The height of the sensor support seat is smaller than the height between the bottom of the outer circle of the right end of the pull rope displacement sensor and the test frame.

[0010] The support plate includes a support base and a vertical plate. The top of the support base is connected to the bottom of the vertical plate. The support base and the vertical 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.

[0011] A fixing hole is provided on the side of the vertical plate, 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 plugged into the fixing hole.

[0012] 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 left side of the traction plate is plugged with the wire rope fixed end, and 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 steel wire rope is located below the traction head.

[0013] The longitudinal sections of the traction head and the traction plate are both circular, and the traction head, the traction plate and the guide rod are located at the same center of the circle; The left end of the connecting shaft passes through the traction plate and the traction head in sequence and is plugged into the fixing hole.

[0014] The displacement sensor mounting seat includes a supporting base plate, a supporting column, and a connecting portion, wherein the top of the supporting base plate is connected to the bottom of the supporting column, and the top of the supporting column is connected to the bottom of the connecting portion; The right side of the connecting part is connected to the left side of the pull-wire displacement sensor, and a buffer pad is arranged on the left side of the connecting part.

[0015] The connecting part and the pull-wire displacement sensor are connected by a plurality of sets of connecting bolts; All connecting bolts are distributed in a ring.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In a device for verifying the safety of a pull-rope displacement sensor under high-speed movement of the present invention, a reel inside the pull-rope displacement sensor is connected to one end of a steel wire rope, the other end of the steel wire rope is connected to one end of a lead-out end of the steel wire rope, and the other end of the lead-out end of the steel wire rope is plugged into a support plate; the bottom of the support plate is connected to the top of a test frame, a guide rod is arranged between the lead-out end of the steel wire rope and a displacement sensor mounting seat, the lead-out end of the steel wire rope makes a reciprocating motion along the guide rod, and the guide rod is arranged parallel to the steel wire rope; the pull-rope displacement sensor is connected to a data recorder signal, and when used, the lead-out end of the steel wire rope is slowly pulled along the guide rod to a certain displacement and then quickly released, the lead-out end of the steel wire rope is quickly retracted under the action of a winding spring, the data recorder collects the reading of the encoder, and analyzes and calculates the speed and acceleration of the steel wire rope under high-speed rope collection conditions through a built-in function of the data recorder, and the test is repeated for many times to adjust the displacement of the lead-out end of the steel wire rope. When the measurement After the test speed reaches the actual use condition requirement, that is, the maximum impact force that the pull rope displacement sensor can withstand, then confirm whether the mechanical parts and detection parts of the pull rope displacement sensor fail. If there is no failure, the pull rope displacement sensor can be used normally. If the failed pull rope displacement sensor cannot be used, it is repaired or replaced. In addition, when it is necessary to detect other different hydraulic cylinders, due to the different maximum impact forces of different types of hydraulic cylinders, when using this design for detection, it is only necessary to extend or reduce the extension of the wire rope lead-out end, and there is no need to replace the detection device. Then slowly pull the wire rope lead-out end along the guide rod to run more or less displacement and then quickly release it. The wire rope lead-out end quickly retracts under the action of the coil spring, thereby adjusting the size of the impact force on the wire rope, that is, adjusting the maximum impact force on the pull rope displacement sensor, better adapting to hydraulic cylinders with different speed requirements, higher detection efficiency, and more convenient detection. Therefore, the present invention can not only detect the maximum impact force on the pull rope displacement sensor, but also adapt to the detection of hydraulic cylinders with different maximum impact forces.

[0017] 2. In a device for verifying the safety of a pull-wire displacement sensor under high-speed movement of the present invention, the top of the test frame is connected to the bottom of the sensor support seat, a pull-wire displacement sensor is arranged on the top of the sensor support seat, the left end of the pull-wire displacement sensor is connected to the right end of the displacement sensor mounting seat, and a buffer pad is arranged on the left end of the displacement sensor mounting seat. When used, the buffer pad is used to isolate the wire rope lead-out end from the displacement sensor mounting seat. The thickness of the buffer pad can be selected according to the impact kinetic energy of the wire rope lead-out end. The buffer pad is used to absorb the kinetic energy of the wire rope lead-out end hitting the displacement sensor mounting seat during high-speed rope collection movement, and can effectively prevent mechanical damage caused by the wire rope lead-out end hitting the displacement sensor mounting seat under the traction of the wire rope tension. Therefore, the present invention is safe to use and has a good protective effect.

[0018] 3. In the device for verifying the safety of the pull-wire displacement sensor under high-speed movement of the present invention, a small amount of lubricating oil can be applied to the guide rod during the test, which can further reduce the friction between the guide rod and the wire rope lead-out end. Reducing the friction force of the wire rope lead-out end during operation can more accurately reflect the force applied to the wire rope lead-out end by the coil spring in the sensor, so that the speed and acceleration of the wire rope lead-out end can be more accurately analyzed and calculated. Therefore, the movement of the wire rope lead-out end of the present invention is smoother and the detection is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention.

[0020] Figure 2 It is a top view of the present invention.

[0021] Figure 3 It is a side view of the draw-wire displacement sensor of the present invention.

[0022] Figure 4 It is a structural schematic diagram of the lead-out end of the steel wire rope in the present invention.

[0023] Figure 5 It is a structural schematic diagram of the displacement sensor mounting seat in the present invention.

[0024] In the figure: test frame 1, support plate 2, support base 21, vertical plate 22, fixing bolts 23, fixing holes 24, wire rope lead-out end 3, traction head 31, traction plate 32, wire rope fixed end 33, guide rod 4, displacement sensor mounting seat 6, support base plate 61, support column 62, connecting part 63, connecting bolts 64, pull rope displacement sensor 7, wire rope 71, baffle 72, connection area 73, through port 74, sensor support seat 8, data recorder 9. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] See also Figures 1 to 5 , a device for verifying the safety of a pull-wire displacement sensor under high-speed movement, the device for verifying the safety of a pull-wire displacement sensor under high-speed movement comprises a test frame 1, a wire rope lead-out end 3, a guide rod 4, a displacement sensor mounting seat 6, a pull-wire displacement sensor 7, a sensor support seat 8 and a data recorder 9; The top of the test frame 1 is connected to the bottom of the sensor support seat 8, a pull-wire displacement sensor 7 is arranged on the top of the sensor support seat 8, the left end of the pull-wire displacement sensor 7 is connected to the right end of the displacement sensor mounting seat 6, a buffer pad 5 is arranged on the left end of the displacement sensor mounting seat 6, the bottom of the displacement sensor mounting seat 6 is connected to the top of the test frame 1, and the top of the test frame 1 is connected to the bottom of the support plate 2; The reel 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 plugged 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 seat 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-wire displacement sensor 7 is connected to the data recorder 9 for signals.

[0027] The left side of the pull rope displacement sensor 7 is provided with a through opening 74, an annular baffle 72 is provided in the through opening 74, and a connecting area 73 is provided at the center of the baffle 72; One end of the steel wire rope 71 passes through the through hole 74 and is connected to the drum inside the rope displacement sensor 7 .

[0028] The pull-wire displacement sensor 7 is connected to the side surface of the displacement sensor mounting seat 6 by bolts.

[0029] The height of the sensor support seat 8 is smaller than the height between the bottom of the outer circle of the right end of the pull-wire displacement sensor 7 and the test frame 1 .

[0030] The support plate 2 includes a support base 21 and a vertical plate 22. The top of the support base 21 is connected to the bottom of the vertical plate 22. The support base 21 and the vertical 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 through fixing bolts 23.

[0031] A fixing hole 24 is formed on the side of the vertical plate 22 . 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 plugged into the fixing hole 24 .

[0032] The wire rope lead-out end 3 comprises a traction head 31, a traction plate 32 and a wire rope fixed end 33. The left side of the traction plate 32 is connected to the right side of the traction head 31. The left side of the traction plate 32 is plugged with the wire rope fixed end 33. The right end of the wire rope fixed end 33 passes through the traction plate 32 and is connected to one end of the wire rope 71. The steel wire rope fixed end 33 is located below the traction head 31 .

[0033] 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 of the circle; The left end of the connecting shaft 41 passes through the traction plate 32 and the traction head 31 in sequence and then is plugged into the fixing hole 24 .

[0034] The displacement sensor mounting seat 6 includes a supporting base plate 61, a supporting column 62, and a connecting portion 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 portion 63. The right side of the connecting portion 63 is connected to the left side of the pull-wire displacement sensor 7 , and a buffer pad 5 is provided on the left side of the connecting portion 63 .

[0035] The connecting portion 63 is connected to the pull-wire displacement sensor 7 via a plurality of connecting bolts 64; All the connecting bolts 64 are distributed in a ring.

[0036] The supplementary description of the present invention is as follows: A cable is used to connect the rope displacement sensor 7 and the data recorder 9. The data recorder 9 can realize the functions of sampling, displaying, storing, and analyzing the 4-20mA analog signal output by the encoder of the rope displacement sensor 7, so as to realize the analysis of the relevant performance of the measured system. The speed and acceleration of the wire rope under the high-speed rope collection condition can be analyzed and calculated through the built-in function of the data recorder 9.

[0037] Embodiment 1: A device for verifying the safety of a pull-wire displacement sensor under high-speed motion, the device for verifying the safety of a pull-wire displacement sensor under high-speed motion comprising a test frame 1, a wire rope lead-out end 3, a guide rod 4, a displacement sensor mounting seat 6, a pull-wire displacement sensor 7, a sensor support seat 8 and a data recorder 9; the top of the test frame 1 is connected to the bottom of the sensor support seat 8, the top of the sensor support seat 8 is provided with a pull-wire displacement sensor 7, the left end of the pull-wire displacement sensor 7 is connected to the right end of the displacement sensor mounting seat 6, the left end of the displacement sensor mounting seat 6 is provided with a buffer pad 5, the bottom of the displacement sensor mounting seat 6 is connected to the The top of the test frame 1 is connected, and the top of the test frame 1 is connected to the bottom of the support plate 2; the reel 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, and the other end of the wire rope lead-out end 3 is plugged 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 arranged between the wire rope lead-out end 3 and the displacement sensor mounting seat 6; the wire rope lead-out end 3 makes reciprocating motion 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 signal.

[0038] When in use: pull the lead-out end 3 of the wire rope to make it move to the left along the guide rod 4. At the same time, the wire rope 71 will move synchronously with the lead-out end 3 of the wire rope. At the same time, under the action of the drum of the pull rope displacement sensor 7, the wire rope 71 and the guide rod 4 remain parallel. Slowly pull the lead-out end 3 of the wire rope to observe whether the data collected by the data recorder 9 is normal, quickly release the lead-out end 3 of the wire rope, and analyze and calculate the speed and acceleration of this section of displacement (about 50mm). Pull a small section of displacement through preliminary tests to verify whether the assembly and data acquisition functions of the device are normal. In order to achieve the required rope collection speed and acceleration The speed working condition 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 4-20mA analog signal of the encoder of the rope-pulling displacement sensor 7 is collected and analyzed and calculated through the data recorder 9 to obtain the speed and acceleration of the wire rope when it is retracted. The test is repeated many times to verify whether the performance of the rope-pulling displacement sensor 7 is reliable. After the high-speed working condition is verified, check whether there are any abnormalities in the appearance of the test device and the rope-pulling displacement sensor 7, and slowly pull the wire rope lead-out end 3 to observe whether the data collected by the data recorder 9 is abnormal. If there is no abnormality, it is judged that the rope-pulling function verification of the rope-pulling displacement sensor 7 is qualified.

[0039] Embodiment 2: Embodiment 2 is substantially the same as Embodiment 1, except that: A through opening 74 is provided on the left side of the rope displacement sensor 7, and an annular baffle 72 is provided in the through opening 74, and a connecting area 73 is provided at the center of the baffle 72; one end of the steel wire rope 71 passes through the through opening 74 and is connected to the drum inside the rope displacement sensor 7; the rope displacement sensor 7 is connected to the side of the displacement sensor mounting seat 6 by bolts; the height of the sensor support seat 8 is less than the height between the bottom of the outer circle of the right end of the rope displacement sensor 7 and the test frame 1.

[0040] When in use: 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 being connected and tightened with the displacement sensor mounting base 6, thereby preventing the sensor support 8 from damaging the rope displacement sensor 7.

[0041] Embodiment 3: Embodiment 3 is substantially the same as Embodiment 1, except that: The support plate 2 includes a support base 21 and a vertical plate 22. The top of the support base 21 is connected to the bottom of the vertical plate 22. The support base 21 and the vertical 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 through fixing bolts 23; a fixing hole 24 is opened on the side of the vertical plate 22, 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 plugged into the fixing hole 24.

[0042] When used: 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 seat 6. In order to keep the guide rod 4 in a horizontal state, a support plate 2 is arranged on the machine 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 seat 6. The guide rod 4 and the wire rope lead-out end 3 are matched with a clearance fit. When the wire rope lead-out end 3 is running, it maintains a straight line under the guidance of the guide rod 4, so that the wire rope can be retracted in a straight line.

[0043] Embodiment 4: Embodiment 4 is substantially the same as Embodiment 1, except that: The wire rope lead-out end 3 includes a traction head 31, a traction plate 32 and a wire rope fixed end 33. The left side of the traction plate 32 is connected to the right side of the traction head 31. The left side of the traction plate 32 is plugged with the wire rope fixed end 33. The right end of the wire rope fixed end 33 passes through the traction plate 32 and is connected to one end of the wire rope 71. The wire rope fixed end 33 is located below the traction head 31. The longitudinal sections of the traction head 31 and the traction plate 32 are both circular. 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 The traction plate 32 and the traction head 31 are plugged into the fixing hole 24; the displacement sensor mounting base 6 includes a supporting base plate 61, a supporting column 62, and a connecting portion 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 portion 63; the right side of the connecting portion 63 is connected to the left side of the pull-wire displacement sensor 7, and a buffer pad 5 is provided on the left side of the connecting portion 63; the connecting portion 63 is connected to the pull-wire displacement sensor 7 by a plurality of connecting bolts 64; all the connecting bolts 64 are distributed in a ring shape.

[0044] During 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 during the operation of the wire rope lead-out end 3 can more accurately reflect the force applied to the wire rope lead-out end 3 by the coil spring in the sensor, so that the speed and acceleration of the wire rope lead-out end 3 can be more accurately analyzed and calculated. The buffer pad 5 is used to isolate the wire rope lead-out end 3 from the displacement sensor mounting seat 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 hitting the displacement sensor mounting seat 6 during high-speed rope retraction movement, which can effectively prevent mechanical damage caused by the wire rope lead-out end 3 hitting the displacement sensor mounting seat 6 under the traction of the wire rope tension.

[0045] The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment. Any equivalent modifications or changes made by ordinary technicians in this field based on the contents disclosed by the present invention should be included in the protection scope recorded in the claims.

Claims

1. A device for verifying the safety of a pull-wire displacement sensor under high-speed motion, characterized in that: The device for verifying the safety of a pull-wire displacement sensor under high-speed motion comprises a test frame (1), a wire rope lead-out end (3), a guide rod (4), a displacement sensor mounting seat (6), a pull-wire displacement sensor (7), a sensor support seat (8) and a data recorder (9); The top of the test frame (1) is connected to the bottom of the sensor support seat (8), a pull-wire displacement sensor (7) is arranged on the top of the sensor support seat (8), the left end of the pull-wire displacement sensor (7) is connected to the right end of the displacement sensor mounting seat (6), a buffer pad (5) is arranged on the left end of the displacement sensor mounting seat (6), the bottom of the displacement sensor mounting seat (6) is connected to the top of the test frame (1), and the top of the test frame (1) is connected to the bottom of the support plate (2); The reel inside the pull rope displacement sensor (7) is connected to one end of the steel wire rope (71), the other end of the steel wire rope (71) is connected to one end of the steel wire rope lead-out end (3), and the other end of the steel wire rope lead-out end (3) is plugged 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 seat (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 signal-connected to the data recorder (9).

2. A device for verifying the safety of a pull-wire displacement sensor under high-speed motion according to claim 1, characterized in that: The left side of the pull-wire displacement sensor (7) is provided with a through opening (74), an annular baffle (72) is arranged in the through opening (74), and a connection area (73) is arranged at the center of the baffle (72); One end of the steel wire rope (71) passes through the through opening (74) and is connected to a drum inside the pull rope displacement sensor (7).

3. A device for verifying the safety of a pull-wire displacement sensor under high-speed motion according to claim 2, characterized in that: The pull-wire displacement sensor (7) is connected to the side surface of the displacement sensor mounting seat (6) via bolts.

4. A device for verifying the safety of a pull-wire displacement sensor under high-speed motion according to claim 3, characterized in that: The height of the sensor support seat (8) is less than the height between the bottom of the outer circle of the right end of the pull-wire displacement sensor (7) and the test machine frame (1).

5. The device for verifying the safety of a pull-wire displacement sensor under high-speed motion according to claim 1, characterized in that: The support plate (2) comprises a support base (21) and a vertical plate (22); the top of the support base (21) is connected to the bottom of the vertical plate (22); the support base (21) and the vertical plate (22) are vertically arranged; and the front and rear ends of the top of the support base (21) are connected to the top of the test frame (1) via fixing bolts (23).

6. A device for verifying the safety of a pull-wire displacement sensor under high-speed motion according to claim 5, characterized in that: A fixing hole (24) is provided on the side of the vertical plate (22); 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 plugged into the fixing hole (24).

7. The device for verifying the safety of a pull-wire displacement sensor under high-speed motion according to claim 5, characterized in that: The wire rope lead-out end (3) comprises a traction head (31), a traction plate (32) and a wire rope fixed end (33); the left side of the traction plate (32) is connected to the right side of the traction head (31); the left side of the traction plate (32) is plugged with the wire rope fixed end (33); the right end of the wire rope fixed end (33) passes through the traction plate (32) and is connected to one end of the wire rope (71); The steel wire rope fixed end (33) is located below the traction head (31).

8. The device for verifying the safety of a pull-wire displacement sensor under high-speed motion according to claim 7, characterized in that: The longitudinal cross-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 of the circle; The left end of the connecting shaft (41) passes through the traction plate (32) and the traction head (31) in sequence and is then plugged into the fixing hole (24).

9. The device for verifying the safety of a pull-wire displacement sensor under high-speed motion according to claim 1, characterized in that: The displacement sensor mounting seat (6) comprises a supporting base plate (61), a supporting column (62), and a connecting portion (63), wherein 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 portion (63); The right side of the connecting portion (63) is connected to the left side of the pull-wire displacement sensor (7), and a buffer pad (5) is provided on the left side of the connecting portion (63).

10. A device for verifying the safety of a pull-wire displacement sensor under high-speed motion according to claim 9, characterized in that: The connecting portion (63) and the pull-wire displacement sensor (7) are connected via a plurality of groups of connecting bolts (64); All the connecting bolts (64) are distributed in a ring.

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