Test method and test device for stress relaxation of traction rope

Abstract

The invention discloses a traction rope stress relaxation test method and test device, and belongs to the field of stress relaxation test devices.The traction rope stress relaxation test device comprises a base, a workbench is fixedly connected to the upper end of the base, a detection device is fixedly connected to the upper end of the workbench, and an automatic rope pulling mechanism is arranged at the upper end of the workbench; the automatic rope pulling mechanism is used for carrying out transposition detection on the traction rope during detection, the automatic rope pulling mechanism comprises a motor fixedly connected to the left side of the workbench, and a sliding groove is formed in the upper end of the workbench. According to the scheme, the arranged sliding block moves left and right to drive the rubber roller to move, and the rubber roller pulls the traction rope to move after one end of the traction rope is detected every time under the action of the first gear, the first one-way bearing and the second one-way bearing, so that the detected position of the traction rope is changed, the detection convenience is improved, and the detection efficiency is improved. The method can be realized without the participation of workers, so that the manpower is saved, and the detection effect is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of stress relaxation test devices, in particular to a stress relaxation test method and test device for a traction rope. BACKGROUND

[0002] A stress relaxation test device is a device for testing the characteristics of stress change over time of a material under constant strain conditions. This test is crucial for evaluating the long-term stability and reliability of materials, especially materials used in high-temperature environments, such as sealing materials, rubber products, metal wires, etc. When designing pre-stressed materials, the loss of pre-stress due to the stress relaxation of the pre-stressed structural components used is taken into account.

[0003] When testing the stress of a traction rope, in many products, a traction rope is taken out for testing. Due to the long length of the traction rope and the limited length of the test device, only a section of the traction rope can be tested during the test. However, in order to ensure the accuracy of the test data, the entire length of the traction rope needs to be tested. Therefore, after testing a certain distance, the worker needs to open the fixing and limiting mechanism, then pull the traction rope to move, and then lock the traction rope with the fixing and limiting mechanism for testing. This operation is cumbersome and requires frequent operation by the worker, which affects the speed of the test.

[0004] Therefore, a stress relaxation test method and test device for a traction rope are provided. SUMMARY

[0005] To solve the problems in the prior art, the present application aims to provide a stress relaxation test method and test device for a traction rope, which can automatically pull the traction rope and change the position of the traction rope for testing, thereby improving the test efficiency.

[0006] To solve the above problems, the present application adopts the following technical solutions.

[0007] A stress relaxation test method and test device for a traction rope, comprising a base, wherein the upper end of the base is fixedly connected with a workbench, the upper end of the workbench is fixedly connected with a detection device, and the upper end of the workbench is provided with an automatic rope pulling mechanism for detecting and changing the position of the traction rope.

[0008] The automatic rope pulling mechanism comprises a motor fixedly connected to the left side of the workbench, a sliding groove is formed in the upper end of the workbench, a sliding block is slidably connected in the sliding groove, a lead screw is arranged at the output end of the motor, the rod wall of the lead screw is threadedly connected with the inside of the sliding block, a rectangular opening is formed in the inside of the workbench at the position of the sliding groove, tooth blocks are uniformly fixedly connected to the front end of the rectangular opening, a rotating rod is rotatably connected to the inside of the sliding block, a first one-way bearing is fixedly connected to the lower end of the rotating rod, a first gear is fixedly connected to the inner ring of the first one-way bearing, the first gear is meshingly connected with the tooth blocks, a second one-way bearing is fixedly connected to the inner ring of the sliding block, the inner ring of the second one-way bearing is fixedly connected with the inner ring of the rotating rod, rubber rollers are fixedly connected to the upper end of the sliding block at the front and rear positions, the lower end of the rubber roller at the rear position is fixedly connected with the upper end of the rotating rod, second gears are fixedly connected to the upper end of the two rubber rollers, the two second gears are meshingly connected with each other, and a clamping assembly is arranged at the upper end of the workbench and can clamp the traction rope with different diameters

[0009] Preferably, the clamping assembly comprises circular support blocks arranged at the two sides of the upper end of the workbench, rectangular rods are slidably connected to the outer sides of the circular support blocks, first springs are sleeved on the rod walls of the rectangular rods, inclined blocks are fixedly connected to one side of the rectangular rods, limit plates are arranged at the upper end of the workbench, and inclined circular holes are formed in the inside of the limit plates.

[0010] Preferably, a moving block is slidably connected to the inside of the right side of the sliding groove, the upper end of the moving block is fixedly connected with the right side of the circular support block, a connecting rod is slidably connected to the inside of the left side of the moving block, a second spring is fixedly connected to the right side of the connecting rod, the left side of the connecting rod is fixedly connected with the right side of the sliding block, a jacking rod is slidably connected to the right side of the inside of the workbench, a third spring is fixedly connected to the right side of the jacking rod, a driving rod is arranged at the output end of the motor, the left side of the driving rod is fixedly connected with the lead screw, the driving rod is slidably connected with the inside of the jacking rod, and a hole larger than the diameter of the lead screw is formed in the inside of the moving block.

[0011] Preferably, a cylinder is fixedly connected to the output end of the motor, the cylinder is rotatably connected with the right side of the driving rod, a return spring is fixedly connected to the outside of the driving rod, and the inner ring of the return spring is fixedly connected with the inner wall of the cylinder.

[0012] Preferably, the inside of the workbench is internally provided with a moving groove, a threaded rod is rotationally connected in the moving groove, a chain wheel is fixedly connected to the right side of the threaded rod and the output end of the motor, the two chain wheels are driven by a chain, a rectangular block is slidably connected in the moving groove, a contact rod is slidably connected to the left side of the rectangular block, a fourth spring is fixedly connected to the right side of the contact rod, a rectangular supporting block is slidably connected to the left side of the upper end of the workbench, and the upper end and the left side of the rectangular supporting block are fixedly connected with the lower end of the limiting plate.

[0013] Preferably, the left side of the rectangular supporting block is fixedly connected with a reset rod, and the left side of the reset rod is fixedly connected with a fifth spring.

[0014] Preferably, the outer side of the left circular supporting block is rotationally connected with a circular block, the lower end of the circular block is fixedly connected with the left side of the upper end of the workbench, the left side of the circular supporting block is uniformly fixedly connected with a tooth, the left side of the workbench is fixedly and rotationally connected with a third gear, the third gear is meshingly connected with the tooth, and the left side of the third gear is provided with a limiting assembly.

[0015] Preferably, the limiting assembly comprises a rotating rod fixedly connected to the left side of the third gear, a square rod is slidably connected in the rotating rod, a sixth spring is fixedly connected to the right side of the square rod, the right side of the sixth spring is fixedly connected with the inside of the rotating rod, a limiting block is fixedly connected to the left side of the square rod, and limiting holes are uniformly and fixedly arranged on the left side of the workbench.

[0016] Preferably, the upper end of the workbench is rotationally connected with a transparent protective shell.

[0017] Further, the application also provides a method suitable for the above, comprising the following steps:

[0018] S1, the detected traction rope is passed through the two circular supporting blocks;

[0019] S2, the left and right movement of the sliding block is driven by the motor to pull and displace the traction rope;

[0020] S3, the traction rope is clamped and fixed by the sliding block through the movement of the sliding block;

[0021] S4, the rotation of the motor enables the energy storage of the return spring, so that the driving rod has a rotating force

[0022] Compared with the prior art, the application has the following beneficial effects:

[0023] (1) This scheme is through the setting slider left and right movement, drive rubber roller moves, rubber roller under the action of first gear, first one-way bearing and second one-way bearing, after every time the detection of one end of traction rope, pull traction rope moves, make the position of traction rope is detected to change, so improve the convenience of detection, without staff participation can be realized, save manpower, improve the effect of detection.

[0024] (2) The first spring is arranged, so that the inclined block has a certain holding force on the traction rope, the limiting plate is moved, the inclined hole is close to the inclined block, the inclined hole has a certain guiding effect on the inclined block, so that the plurality of inclined blocks are close to each other, and then the traction rope is fixed and clamped, the inclined block can clamp the traction rope with different diameters, thereby improving the applicability of the device

[0025] (3) The right inclined block can move synchronously with the limiting plate, so that the traction rope can smoothly pass through the inclined block, and the traction rope is prevented from winding, so that the normal work is ensured.

[0026] (4) The motor rotates to drive the cylinder to rotate, the cylinder rotates to store energy in the internal return spring, the return spring drives the driving rod to rotate, so that the slide has a right force when stress is applied, at this time the return spring has a certain potential energy, when the traction rope deforms, the potential energy in the return spring is released, so that the traction rope always has a certain stress, and the normal work is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is the whole structure schematic diagram of the present application;

[0028] Figure 2 It is the first view structure schematic diagram of the present application;

[0029] Figure 3 It is the Figure 2 Enlarged structure schematic diagram of A in the present application;

[0030] Figure 4 It is the Figure 2 Enlarged structure schematic diagram of B in the present application;

[0031] Figure 5 It is the second view structure schematic diagram of the present application;

[0032] Figure 6 It is the Figure 5 Enlarged structure schematic diagram of C in the present application;

[0033] Figure 7 It is the third view structure schematic diagram of the present application;

[0034] Figure 8The local structure schematic diagram of the present application. Figure 6 The enlarged structure schematic diagram at D in the present application.

[0035] Figure 9 The local structure schematic diagram of the present application.

[0036] Explanation of figure mark:

[0037] 1, base; 2, workbench; 3, transparent protective shell; 4, detection device; 5, motor; 6, rectangular rod; 7, sliding groove; 8, screw rod; 9, sliding block; 10, first gear; 11, threaded rod; 12, chain; 13, chain wheel; 14, moving groove; 15, limiting plate; 16, cylinder; 17, return spring; 18, driving rod; 19, jacking rod; 20, third spring; 21, moving block; 22, second spring; 23, connecting rod; 24, circular support block; 25, inclined block; 26, first one-way bearing; 27, rectangular opening; 28, second one-way bearing; 29, tooth block; 30, rubber roller; 31, limiting block; 32, second gear; 33, rectangular support block; 34, reset rod; 35, fifth spring; 36, square rod; 37, rotating rod; 38, sixth spring; 39, third gear; 40, contact rod; 41, rectangular block; 42, tooth; 43, round block; 44, first spring; 45, rotating rod; 46, fourth spring; 47, limiting hole. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application, and all other embodiments obtained by a person of ordinary skill in the art without creative work on the basis of the embodiments in the present application belong to the protection scope of the present application.

[0039] Please refer to Figures 1 to 9 A stress relaxation test method and test device of a traction rope, comprising a base 1, the upper end of the base 1 is fixedly connected with a workbench 2, the upper end of the workbench 2 is fixedly connected with a detection device 4, the detection device 4 is prior art, the upper end of the workbench 2 is provided with an automatic rope pulling mechanism, which can detect the traction rope transposition detection when in use;

[0040] The automatic rope pulling mechanism comprises a motor 5 fixedly connected to the left side of the workbench 2, the motor 5 is a driving device, the upper end of the workbench 2 is provided with a sliding groove 7, the sliding groove 7 is internally slidably connected with a sliding block 9, the sliding block 9 can move left and right in the sliding groove 7, the output end of the motor 5 is provided with a lead screw 8, the motor 5 drives the lead screw 8 to rotate, the rod wall of the lead screw 8 is threadedly connected with the inside of the sliding block 9, the rotation of the lead screw 8 makes the sliding block 9 move, the position of the sliding groove 7 in the inside of the workbench 2 is provided with a rectangular opening 27, the front end of the rectangular opening 27 is uniformly fixedly connected with a tooth block 29, the inside of the sliding block 9 is rotatably connected with a rotating rod 45, the rotating rod 45 can rotate relative to the sliding block 9, the lower end of the rotating rod 45 is fixedly connected with a first one-way bearing 26, the inner ring of the first one-way bearing 26 is fixedly connected with a first gear 10, the first gear 10 is meshingly connected with the tooth block 29, the inner ring of the sliding block 9 is fixedly connected with a second one-way bearing 28, the first one-way bearing 26 and the second one-way bearing 28 are prior art, the inner ring and the outer ring are one-way locked, one-way movable, and the one-way locking directions of the first one-way bearing 26 and the second one-way bearing 28 are different, the inner ring of the second one-way bearing 28 is fixedly connected with the inner ring of the rotating rod 45, the upper end of the sliding block 9 is fixedly connected with rubber rollers 30 in front and back positions, the lower end of the rear rubber roller 30 is fixedly connected with the upper end of the rotating rod 45, the upper end of the two rubber rollers 30 is fixedly connected with second gears 32, the two second gears 32 are meshingly connected with each other, the upper end of the workbench 2 is provided with a clamping assembly, the clamping assembly can be loosened and clamped in cooperation with the automatic rope pulling mechanism, and the clamping assembly can clamp traction ropes with different diameters;

[0041] When working, the traction rope to be detected is placed on the upper end of the workbench 2, the two sides of the traction rope are clamped by the clamping assembly, then stress is applied, and the part of the traction rope to be detected is monitored by the detection device 4. After monitoring, the motor 5 works, the motor 5 drives the lead screw 8 to rotate, the lead screw 8 drives the sliding block 9 to move left in the sliding groove 7, the sliding block 9 drives the rotating rod 45 to move when moving, the rotating rod 45 drives the first gear 10 to move, the first gear 10 rotates under the action of meshing connection with the toothed block 29, the inner ring and the outer ring of the first one-way bearing 26 are in a locked state at this time, and the inner ring and the outer ring of the second one-way bearing 28 are in a movable state at this time, the rotating rod 45 can rotate relative to the sliding block 9 at this time, so that the sliding block 9 moves left, the first gear 10 rotates to drive the rotating rod 45 to rotate, the rotating rod 45 drives the rubber roller 30 to rotate, the two rubber rollers 30 rotate synchronously through the second gear 32, the rear rubber roller 30 rotates counterclockwise and the front rubber roller 30 rotates clockwise, thereby conveying the traction rope to the right, when the lead screw 8 reverses, the sliding block 9 moves right, the inner ring and the outer ring of the first one-way bearing 26 are in a movable state at this time, so that the first gear 10 no longer drives the rotating rod 45 to rotate when rotating, the sliding block 9 drives the rubber roller 30 to rotate, the rubber roller 30 moves right under the action of friction, the friction causes the rubber roller 30 to reverse, driving the rotating rod 45 to have a reverse trend, the inner ring and the outer ring of the second one-way bearing 28 are in a locked state at this time, thereby making the two rubber rollers 30 in a fixed state, so that the rubber roller 30 moves right to pull the traction rope right, so that the sliding block 9 moves left and right to drive the rubber roller 30 to move during detection, the rubber roller 30 moves under the action of the first gear 10, the first one-way bearing 26 and the second one-way bearing 28, after detecting one end of the traction rope each time, the traction rope is moved to change the position to be detected, thereby improving the convenience of detection, achieving without the participation of staff, saving manpower and improving the detection effect.

[0042] As shown in Figure 9 The clamping assembly comprises circular support blocks 24 arranged on both sides of the upper end of the workbench 2, the outer sides of the circular support blocks 24 are slidably connected with rectangular rods 6, the rectangular rods 6 can slide relative to the circular support blocks 24, the rod walls of the rectangular rods 6 are sleeved with first springs 44, one side of the rectangular rod 6 is fixedly connected with an inclined block 25, the upper end of the workbench 2 is provided with a limiting plate 15, and an inclined circular hole is formed in the inner part of the limiting plate 15.

[0043] The first spring 44 is arranged to make the inclined block 25 have a certain clamping force on the traction rope. It should be noted that the elastic force of the first spring 44 is limited and does not affect the work of the traction rope. By moving the limiting plate 15, the inclined hole is close to the inclined block 25, and the inclined hole has a certain guiding effect on the inclined block 25, so that the plurality of inclined blocks 25 are close to each other, thereby fixing and clamping the traction rope. The inclined block 25 can clamp traction ropes of different diameters, thereby improving the applicability of the device.

[0044] As shown in Figure 2 and Figure 3 The inner right side of the chute 7 is slidably connected with a moving block 21, the moving block 21 can move in the inner part of the chute 7, the upper end of the moving block 21 is fixedly connected with a right circular support block 24, the moving block 21 moves to drive the circular support block 24 to move, the inner left side of the moving block 21 is slidably connected with a connecting rod 23, the right side of the connecting rod 23 is fixedly connected with a second spring 22, the left side of the connecting rod 23 is fixedly connected with the right side of the sliding block 9, the sliding block 9 moves to drive the connecting rod 23 to move, thereby making the moving block 21 move, the inner right side of the workbench 2 is slidably connected with a top rod 19, the right side of the top rod 19 is fixedly connected with a third spring 20, the third spring 20 has a certain supporting force on the top rod 19, the output end of the motor 5 is provided with a driving rod 18, the left side of the driving rod 18 is fixedly connected with the lead screw 8, the driving rod 18 is slidably connected with the inner part of the top rod 19, and there is no movement interference between the top rod 19 and the driving rod 18. A hole larger in diameter than the lead screw 8 is formed in the inner part of the moving block 21;

[0045] When the sliding block 9 moves to the left side, the second spring 22 has a supporting force on the connecting rod 23, so that the sliding block 9 has a certain distance from the moving block 21, thereby making the inclined block 25 separate from the limiting plate 15, so that the inclined block 25 does not affect the movement of the traction rope. At the same time, when the sliding block 9 moves, the connecting rod 23 drives the moving block 21 to move, and when the moving block 21 moves with the sliding block 9, the traction rope located on the right side of the limiting plate 15 is better able to pass through the right inclined block 25 when moving to the right, thereby ensuring the normal work. The sliding block 9 moves to the right, the moving block 21 contacts the right top rod 19, and the top rod 19 is driven by the third spring 20 to make the sliding block 9 close to the moving block 21, thereby making the right limiting plate 15 close to the inclined block 25 to fix the inclined block 25 on the traction rope. At this time, the lead screw 8 continues to move the sliding block 9 to the right, so that the top rod 19 moves to the right to compress the third spring 20. After the top rod 19 moves, the traction rope can be stretched to exert stress. In this way, during work, the right inclined block 25 can move synchronously with the limiting plate 15, so that the traction rope can smoothly pass through the inclined block 25, thereby ensuring the normal work. At the same time, the whole process can be completed only by moving the sliding block 9, without the need for too many driving devices.

[0046] AsFigure 3 As shown, the output end of the motor 5 is fixedly connected with a cylinder 16, the cylinder 16 is rotatably connected with the right side of a driving rod 18, the outer side of the driving rod 18 is fixedly connected with a return spring 17, the inner ring of the return spring 17 is fixedly connected with the inner wall of the cylinder 16;

[0047] After the traction rope is deformed by the stress, the stress at this time will be reduced accordingly, which will affect the accuracy of the data;

[0048] The motor 5 rotates to drive the cylinder 16 to rotate, the cylinder 16 rotates to store energy in the return spring 17 inside, the return spring 17 drives the driving rod 18 to rotate, so that the lead screw 8 has a rightward force on the sliding block 9 when the stress is applied, at this time the return spring 17 has a certain elastic potential energy, when the traction rope deforms, the potential energy inside the return spring 17 is released, thereby ensuring that the traction rope always has a certain stress, ensuring the normal work.

[0049] As shown in Figure 3 and Figure 4 As shown, the inside of the workbench 2 is provided with a moving groove 14, the inside of the moving groove 14 is rotatably connected with a threaded rod 11, the right side of the threaded rod 11 is fixedly connected with a sprocket 13 at the output end of the motor 5, the two sprockets 13 are driven by the chain 12, the motor 5 works, the threaded rod 11 is driven to rotate by the sprocket 13 and the chain 12, the inside of the moving groove 14 is slidably connected with a rectangular block 41, the left side of the rectangular block 41 is slidably connected with a contact rod 40, the threaded rod 11 is threadedly connected with the rectangular block 41, so that the threaded rod 11 rotates to move the rectangular block 41, the right side of the contact rod 40 is fixedly connected with a fourth spring 46, the fourth spring 46 has a certain supporting force on the contact rod 40, the upper end left side of the workbench 2 is slidably connected with a rectangular support block 33, the upper end and the left side of the limiting plate 15 are fixedly connected with the lower end of the rectangular support block 33, the left side of the rectangular support block 33 is fixedly connected with a reset rod 34, the left side of the reset rod 34 is fixedly connected with a fifth spring 35, the fifth spring 35 is used to push the reset rod 34 to move, the reset rod 34 drives the left side of the rectangular support block 33 to move right, so that the left side of the limiting plate 15 is separated from the inclined block 25;

[0050] When the sliding block 9 moves left, the threaded rod 11 also rotates through the chain 12, at this time the rectangular block 41 moves right, when the sliding block 9 moves right, the rectangular block 41 moves left, driving the contact rod 40 to move, thereby pushing the left side of the rectangular support block 33 left, so that the left side of the limiting plate 15 approaches the inclined block, so that the left side of the inclined block 25 can cooperate with the traction rope when clamping the traction rope, ensuring the normal work.

[0051] As shown in Figure 8As shown, the outer side of the left circular support block 24 is rotationally connected with a circular block 43, the lower end of the circular block 43 is fixedly connected with the left side of the upper end of the workbench 2, the left side of the circular support block 24 is uniformly fixedly connected with a gear tooth 42, the left side of the workbench 2 is fixedly rotationally connected with a third gear 39, the third gear 39 is in meshing connection with the gear tooth 42, and the left side of the third gear 39 is provided with a limiting assembly;

[0052] When it is necessary to apply a rotating stress, after the inclined block 25 clamps the traction rope, at this time, the third gear 39 is rotated, the third gear 39 drives the meshing connected gear tooth 42 to move, the gear tooth 42 moves to drive the circular support block 24 to rotate, the circular support block 24 drives the inclined block 25 to rotate, and then the traction rope is rotated, so that corresponding rotating stress can be applied to the traction rope according to needs during detection, and the comprehensiveness of detection is improved.

[0053] As shown in the figure, Figure 8 The limiting assembly comprises a rotating rod 37 fixedly connected to the left side of the third gear 39, a square rod 36 slidingly connected in the interior of the rotating rod 37, a sixth spring 38 fixedly connected to the right side of the square rod 36, the sixth spring 38 having a pulling force on the square rod 36, the right side of the sixth spring 38 being fixedly connected with the interior of the rotating rod 37, a limiting block 31 fixedly connected to the left side of the square rod 36, and a limiting hole 47 uniformly and fixedly arranged on the left side of the workbench 2.

[0054] The square rod 36 is pulled to the left, the square rod 36 moves to make the limiting block 31 disengage from the limiting hole 47, at this time, the square rod 36 is rotated to drive the rotating rod 37 to rotate, the rotating rod 37 drives the third gear 39 to rotate, and after rotation, the limiting block 31 is inserted into the interior of the limiting hole 47 to limit the rotation of the third gear 39.

[0055] As shown in the figure, Figure 1 The upper end of the workbench 2 is rotationally connected with a transparent protective shell 3, and the transparent protective shell 3 is pulled down during the experiment, so that the traction rope can be prevented from breaking and injuring the staff during the experiment, and the safety of use of the device is improved.

[0056] The application also provides a method suitable for the above, comprising the following steps:

[0057] Working principle: when working, the traction rope to be detected is placed at the upper end of the workbench 2, the two sides of the traction rope are clamped by the clamping assembly, then stress is applied, and the part of the traction rope to be detected is monitored by the detection device 4. When the monitoring is completed, the motor 5 works at this time, the motor 5 drives the screw rod 8 to rotate, the screw rod 8 makes the sliding block 9 move to the left in the sliding groove 7, and the sliding block 9 moves to drive the rotating rod 45 to move. The rotating rod 45 moves to drive the first gear 10 to move, and the first gear 10 moves to drive the first gear 10 to rotate under the action of the meshing connecting tooth block 29. At this time, the inner ring and the outer ring of the first one-way bearing 26 are in a locked state, and the inner ring and the outer ring of the second one-way bearing 28 are in a movable state. At this time, the rotating rod 45 can rotate relative to the sliding block 9. When the sliding block 9 moves to the left, the first gear 10 rotates to drive the rotating rod 45 to rotate, and the rotating rod 45 drives the rubber roller 30 to rotate. The two rubber rollers 30 rotate synchronously through the second gear 32, the rear rubber roller 30 rotates counterclockwise and the front rubber roller 30 rotates clockwise, thereby conveying the traction rope to the right. When the screw rod 8 reverses, the sliding block 9 moves to the right, and the inner ring and the outer ring of the first one-way bearing 26 are in a movable rotating state, so that the first gear 10 no longer drives the rotating rod 45 to rotate when it rotates. The sliding block 9 moves to the right to drive the rubber roller 30 to rotate. The rubber roller 30 is pulled to the right under the action of friction, and the friction causes the rubber roller 30 to reverse, thereby driving the rotating rod 45 to have a reverse trend. At this time, the inner ring and the outer ring of the second one-way bearing 28 are in a locked state, thereby making the two rubber rollers 30 in a fixed state. Thus, when the rubber roller 30 moves to the right, it can pull the traction rope to the right. Thus, during detection, the sliding block 9 moves left and right to drive the rubber roller 30 to move. The rubber roller 30 moves under the action of the first gear 10, the first one-way bearing 26 and the second one-way bearing 28. After the detection of one end of the traction rope, the rubber roller 30 is pulled to move, so that the position of the traction rope to be detected is changed. Thus, the detection is convenient, and the staff can realize it without participating, thereby saving manpower and improving the detection effect.

[0058] Further, the first spring 44 is arranged to make the inclined block 25 have a certain clamping force on the traction rope. It should be noted that the elastic force of the first spring 44 is limited and will not affect the rope work. By moving the limiting plate 15, the inclined hole is closer to the inclined block 25, the inclined hole has a certain guiding effect on the inclined block 25, so that the plurality of inclined blocks 25 are close to each other, thereby fixedly clamping the traction rope. The inclined block 25 can clamp traction ropes of different diameters, thereby improving the applicability of the device.

[0059] Further, when the slider 9 moves to the left, the second spring 22 supports the connecting rod 23, so that the slider 9 has a certain distance from the moving block 21, thereby making the inclined block 25 disengage from the limiting plate 15, so that the inclined block 25 does not affect the movement of the traction rope, and when the slider 9 moves, the connecting rod 23 drives the moving block 21 to move, and when the moving block 21 moves with the slider 9, the traction rope on the right side of the limiting plate 15 can better pass through the right inclined block 25 when moving to the right, thereby ensuring the normal operation, and when the slider 9 moves to the right, the moving block 21 contacts the right top rod 19, and the top rod 19 is driven by the third spring 20 to make the slider 9 close to the moving block 21, thereby making the right limiting plate 15 close to the inclined block 25 to fix the inclined block 25, at this time, the lead screw 8 continues to move the slider 9 to the right, so that the top rod 19 moves to the right and compresses the third spring 20, and after the top rod 19 moves, the traction rope can be stretched to exert stress, so that the right inclined block 25 can move synchronously with the limiting plate 15 during work, thereby ensuring that the traction rope can smoothly pass through the inclined block 25, and the whole process can be completed by moving the slider 9, without the need for too many driving devices.

[0060] Further, the motor 5 drives the cylinder 16 to rotate, the cylinder 16 rotates to make the internal return spring 17 store energy, and the return spring 17 drives the driving rod 18 to rotate, so that the lead screw 8 exerts a right force on the slider 9 when stress is exerted, and the return spring 17 has a certain potential energy at this time, and when the traction rope deforms, the potential energy in the return spring 17 is released, thereby ensuring that the traction rope always has a certain stress, thereby ensuring the normal operation.

[0061] Further, when it is necessary to exert rotational stress, after the inclined block 25 clamps the traction rope, the third gear 39 is rotated to drive the meshed connecting teeth 42 to move, the teeth 42 move to drive the circular support block 24 to rotate, the circular support block 24 drives the inclined block 25 to rotate, thereby making the traction rope rotate, so that the traction rope can exert corresponding rotational stress according to the need during detection, thereby improving the comprehensiveness of detection.

[0062] The above merely describes the preferred embodiments of the present application; however, the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacements or changes to the technical solutions and the improvement concept of the present application within the technical range disclosed by the present application, which should be covered by the protection scope of the present application.

Claims

1. A stress relaxation test device for a traction rope, comprising a base (1), characterized in that: The upper end of the base (1) is fixedly connected to a workbench (2), the upper end of the workbench (2) is fixedly connected to a detection device (4), and the upper end of the workbench (2) is provided with an automatic rope-pulling mechanism, which can detect the position change of the traction rope during detection; The automatic rope-pulling mechanism comprises a motor (5) fixedly connected to the left side of the workbench (2); a slide groove (7) is provided at the upper end of the workbench (2); a slider (9) is slidably connected to the inside of the slide groove (7); a screw rod (8) is provided at the output end of the motor (5); the rod wall of the screw rod (8) is threadedly connected to the inside of the slider (9); a rectangular opening (27) is provided at the position of the slide groove (7) inside the workbench (2); a tooth block (29) is evenly fixedly connected to the front end of the rectangular opening (27); a rotating rod (45) is rotatably connected to the inside of the slider (9); the lower end of the rotating rod (45) is fixedly connected to the first one-way bearing (26); the first one-way bearing (26) is fixedly connected to the bottom end of the rotating rod (45 ... The inner ring is fixedly connected to a first gear (10), and the first gear (10) is meshed with a tooth block (29). The inner ring of the slider (9) is fixedly connected to a second one-way bearing (28), and the inner ring of the second one-way bearing (28) is fixedly connected to the inner ring of the rotating rod (45). The front and rear positions of the upper end of the slider (9) are fixedly connected to rubber rollers (30), and the lower end of the rear end of the rubber roller (30) is fixedly connected to the upper end of the rotating rod (45). The upper ends of the two rubber rollers (30) are fixedly connected to a second gear (32), and the two second gears (32) are meshed with each other. A clamping assembly is provided at the upper end of the workbench (2), and the clamping assembly can clamp traction ropes of different diameters.

2. A traction rope stress relaxation test device according to claim 1, characterized in that: The clamping assembly comprises circular support blocks (24) arranged on both sides of the upper end of the workbench (2), the outer sides of the circular support blocks (24) are slidably connected to rectangular rods (6), the rod wall of the rectangular rod (6) is sleeved with a first spring (44), one side of the rectangular rod (6) is fixedly connected to an inclined block (25), the upper end of the workbench (2) is provided with a limit plate (15), and the interior of the limit plate (15) is provided with an inclined circular hole.

3. A traction rope stress relaxation test device according to claim 2, characterized in that: The right side of the interior of the slide groove (7) is slidably connected to a moving block (21), the upper end of the moving block (21) is fixedly connected to the right circular support block (24), the left side of the interior of the moving block (21) is slidably connected to a connecting rod (23), the right side of the connecting rod (23) is fixedly connected to a second spring (22), the left side of the connecting rod (23) is fixedly connected to the right side of the slider (9), the right side of the interior of the workbench (2) is slidably connected to a push rod (19), the right side of the push rod (19) is fixedly connected to a third spring (20), the output end of the motor (5) is provided with a driving rod (18), the left side of the driving rod (18) is fixedly connected to the screw rod (8), the driving rod (18) is slidably connected to the inside of the push rod (19), and a hole larger than the diameter of the screw rod (8) is opened inside the moving block (21).

4. A stress relaxation test device for a traction rope according to claim 3, characterized in that: The output end of the motor (5) is fixedly connected to a cylinder (16), the cylinder (16) is rotatably connected to the right side of a driving rod (18), the outer side of the driving rod (18) is fixedly connected to a return spring (17), and the inner ring of the return spring (17) is fixedly connected to the inner wall of the cylinder (16).

5. The device for testing the stress relaxation of a traction rope according to claim 4, characterized in that: The workbench (2) is provided with a movable groove (14) inside, and a threaded rod (11) is rotatably connected inside the movable groove (14), and a sprocket (13) is fixedly connected to the right side of the threaded rod (11) and the output end of the motor (5), and the two sprockets (13) are driven by a chain (12). The movable groove (14) is slidably connected to a rectangular block (41), and the left side of the rectangular block (41) is slidably connected to a contact rod (40), and the right side of the contact rod (40) is fixedly connected to a fourth spring (46). The upper left side of the workbench (2) is slidably connected to a rectangular support block (33), and the upper end of the rectangular support block (33) is fixedly connected to the lower end of the limit plate (15) on the left side.

6. The device for testing the stress relaxation of a traction rope according to claim 5, characterized in that: The left side of the rectangular support block (33) is fixedly connected to a reset rod (34), and the left side of the reset rod (34) is fixedly connected to a fifth spring (35).

7. The device for testing the stress relaxation of a traction rope according to claim 2, characterized in that: The outer side of the circular support block (24) on the left side is rotatably connected to a circular block (43), the lower end of the circular block (43) is fixedly connected to the left side of the upper end of the workbench (2), the left side of the circular support block (24) is evenly fixedly connected to teeth (42), the left side of the workbench (2) is fixedly rotatably connected to a third gear (39), the third gear (39) is meshed with the teeth (42), and a limit assembly is provided on the left side of the third gear (39).

8. The stress relaxation test device for a traction rope according to claim 7, characterized in that: The limiting assembly includes a rotating rod (37) fixedly connected to the left side of the third gear (39), a square rod (36) is slidably connected inside the rotating rod (37), a sixth spring (38) is fixedly connected to the right side of the square rod (36), the right side of the sixth spring (38) is fixedly connected to the inside of the rotating rod (37), the left side of the square rod (36) is fixedly connected to the limiting block (31), and the left side of the workbench (2) is fixedly and evenly provided with limiting holes (47).

9. The device for testing the stress relaxation of a traction rope according to claim 1, characterized in that: The upper end of the workbench (2) is rotatably connected to a transparent protective shell (3).

10. A test method for a traction rope stress relaxation test device according to any one of claims 1 to 9, characterized in that: The steps include: S1, pass the traction rope to be tested through the circular support blocks (24) on both sides; S2, the motor (5) drives the slider (9) to move left and right, pulling and changing the position of the traction rope; S3, by moving the slider (9), the inclined block (25) clamps and fixes the traction rope; S4: The motor (5) rotates to store energy in the return spring (17), thereby generating a rotational force for the driving rod (18).

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