Sleeper torsion resistance test tool and test method

Abstract

The invention provides a sleeper torsion resistance testing tool and a testing method. The sleeper torsion resistance testing tool comprises a fixing device and a torsion device, the fixing device comprises a top plate, a pressing plate and a heightening plate which are sequentially arranged from top to bottom, the pressing plate and the foundation platform are fixed together through a double-end lead screw, and the top plate and the heightening plate are fixed together through a double-end pull rod; a hydraulic oil cylinder is arranged between the top plate and the pressing plate and used for adjusting the distance between the pressing plate and the heightening plate, and the pressing plate and the heightening plate are matched to be used for fixing the front sleeper. The torsion device comprises a shifting clamping seat and a torque wrench, the shifting clamping seat is used for fixing the rear sleeper, the torque wrench is used for driving the shifting clamping seat to rotate to perform torsion resistance test on the sleeper, and the torque wrench is fixed together with the foundation platform through a supporting seat; the sleeper torsion resistance testing tool is simple in overall structure, low in manufacturing cost, convenient to operate and capable of greatly improving the testing efficiency, and the sleeper can be conveniently mounted and dismounted.

Description

Technical Field

[0001] The invention relates to the technical field of sleeper detection, and in particular to a sleeper anti-torsion testing tool and a testing method. Background Art

[0002] The sleepers commonly used on railways now are basically cement sleepers, and the length of a single cement sleeper is generally 2.5 meters, and the weight of a single cement sleeper exceeds 300kg. Due to its large size and heavy weight, it is very difficult to test the torsional performance of a single cement sleeper. Usually large equipment over 3 meters is required, and some equipment also requires the cement sleeper to be erected for testing. This testing method not only makes the testing equipment expensive and inconvenient to operate, but is also prone to safety accidents. Summary of the invention

[0003] In view of this, the present invention aims to propose a sleeper anti-torsion testing tool and a testing method to solve the problems of difficulty in anti-torsion testing of cement sleepers in the prior art, high cost of testing equipment and inconvenient operation.

[0004] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0005] A sleeper anti-torsion testing tool, comprising a fixing device and a torsion device, wherein the fixing device and the torsion device are both fixed to a foundation platform;

[0006] The fixing device comprises a top plate, a pressing plate and a padding plate arranged in sequence from top to bottom, the pressing plate and the foundation platform are fixed together by a double-headed screw, and the top plate and the padding plate are fixed together by a double-headed pull rod;

[0007] A hydraulic cylinder is arranged between the top plate and the pressure plate, the upper end of the hydraulic cylinder is fixed to the top plate, and the lower end is fixed to the pressure plate, the hydraulic cylinder is used to adjust the distance between the pressure plate and the padding plate, and the pressure plate and the padding plate are used to fix the front sleeper;

[0008] The torsion device includes a rotating clamp seat and a torque wrench. The rotating clamp seat is used to fix the rear sleeper, and the torque wrench is used to drive the rotating clamp seat to rotate to perform an anti-torsion test on the sleeper. The torque wrench is fixed to the foundation platform through a support seat.

[0009] The sleeper anti-torsion testing tool described in the present application has a simple overall structure, low cost, is convenient for installation and disassembly of the sleeper, is easy to operate, and can greatly improve the testing efficiency.

[0010] Furthermore, the rotating clamp seat includes an L-shaped plate and a rotating clamp plate, the L-shaped plate includes a horizontal plate and a vertical plate, and the lower end of the vertical plate is vertically connected to the rear end of the horizontal plate;

[0011] The vertical plate is provided with a limiting slot hole, and the bolts fix the rotating splint and the vertical plate together through the limiting slot hole. The bolts can move in the up and down directions along the limiting slot hole, so that the rotating splint moves up and down relative to the cross plate. The rotating splint and the cross plate are used together to fix the rear rail sleeper.

[0012] This arrangement has a simple structure, is easy to install and disassemble, and securely fixes the rear sleeper, making it less likely to slip and fall off.

[0013] Furthermore, a supporting plate is provided on the lower side of the raising plate, and the supporting plate is fixed to the foundation platform by anchor bolts to support the raising plate;

[0014] An arc-shaped plate is arranged on the lower side of the transverse plate, and the arc-shaped plate is fixed to the foundation platform through anchor bolts to support the transverse plate, and the rotating clamp seat can rotate along the arc surface of the arc-shaped plate.

[0015] This arrangement can improve the stability of the fixing device and the torsion device, and can also prevent the sleeper from interfering with the foundation platform when rotating.

[0016] Furthermore, the top plate is provided with a notch, and the notch is used to avoid the double-headed screw rod. The structure of the raising plate is the same as that of the top plate; the pressure plate is provided with an avoidance hole, and the avoidance hole is used to avoid the double-headed pull rod.

[0017] This arrangement facilitates installation and removal of the fixture.

[0018] Further, the double-ended screw is provided with a first fixing nut, a second fixing nut, a third fixing nut and a fourth fixing nut, the first fixing nut and the second fixing nut are located on the upper side of the pressing plate, the third fixing nut and the fourth fixing nut are located on the lower side of the pressing plate, and the first fixing nut, the second fixing nut, the third fixing nut and the fourth fixing nut cooperate to fix the pressing plate;

[0019] The double-headed pull rod is provided with a first adjusting nut and a second adjusting nut. The first adjusting nut is located on the upper side of the top plate, and the second adjusting nut is located on the lower side of the top plate. The first adjusting nut and the second adjusting nut are used together to adjust the distance between the pressure plate and the pad plate.

[0020] This arrangement can not only firmly fix the fixture and the foundation platform together, but also facilitate the adjustment of the distance between the top plate and the pressure plate relative to the pad plate, thereby improving the flexibility and adaptability of the test and facilitating operation.

[0021] Furthermore, it also includes a hydraulic device, which is used to drive the hydraulic cylinder and the torque wrench.

[0022] This setup has a simple structure, high power output, and facilitates precise control of the hydraulic cylinder and torque wrench.

[0023] Furthermore, the torque wrench is provided with a torque dial, and the torque dial is used to display the torque value.

[0024] The torque dial can intuitively display the torque value, making it easy for operators to understand the current torque conditions and ensure the accuracy and reliability of the test results.

[0025] Furthermore, the rotating clamp seat is provided with an inclinometer, and the inclinometer is used to detect the rotation angle of the rotating clamp seat.

[0026] The inclinometer can accurately measure the rotation angle of the dial clamp seat, provide a precise angle value, and ensure the accuracy and reliability of the test result.

[0027] The present invention also provides a sleeper torsion resistance testing method, which is used for the sleeper torsion resistance testing tool described above, and comprises the following steps:

[0028] Step 1: Start the hydraulic device, adjust the first fixing nut and the second fixing nut on the double-ended screw to move upward, and control the hydraulic cylinder to drive the pressing plate to move upward to the set position;

[0029] Step 2: Use the overhead crane to lift the sleeper and insert the front sleeper between the pressure plate and the pad plate;

[0030] Step 3: Install the twisting device and insert the rear sleeper between the turning clamp and the cross plate;

[0031] Step 4: Adjust the distance between the rotating clamp and the cross plate to fix the rear sleeper, control the hydraulic cylinder to drive the pressure plate to move downward to press the front sleeper, adjust the first fixing nut and the second fixing nut on the double-headed screw to fix the pressure plate, and adjust the rotating clamp seat at the same time to make the cross plate parallel to the foundation platform, and the value of the inclinometer returns to zero;

[0032] Step 5: Connect the torque wrench to the hydraulic device and adjust the torque dial to zero;

[0033] Step 6: Control the torque wrench to drive the rotating clamp seat to rotate, and perform a torsion resistance test on the sleeper. When the rotation angle of the rotating clamp seat reaches the set angle, control the rotating clamp seat to stop rotating, and record the value of the torque dial;

[0034] Step 7: Control the rotating clamp seat to rotate in the opposite direction to the starting position, and fix the sleeper on the suspension rope of the overhead crane;

[0035] Step 8: Move the turning clamp upward to release the fixation on the rear sleeper, remove the torsion device, adjust the first fixing nut and the second fixing nut on the double-headed screw to move upward, control the hydraulic cylinder to drive the pressure plate to move upward to the set position, use the overhead crane to remove the front sleeper from between the pressure plate and the raising plate, and the test is completed.

[0036] This method facilitates the installation and disassembly of the sleepers and provides secure fixation, greatly improving the test efficiency. During the test, the torsion angle and force conditions can be monitored in real time, ensuring the accuracy and controllability of the test process.

[0037] Furthermore, in step 1, the models of the supporting plate and the arc plate are selected according to the specifications of the sleeper to be tested, the raising plate is moved upward by adjusting the first adjusting nut and the second adjusting nut, the supporting plate of the corresponding specification is replaced, the raising plate is moved to the corresponding position and fixed, and finally the arc plate is replaced.

[0038] This arrangement makes it easy to test sleepers of different specifications and expands the scope of application of the sleeper anti-torsion test fixture.

[0039] Compared with the prior art, the sleeper anti-torsion test fixture and test method of the present invention have the following advantages:

[0040] 1) The overall structure is simple, the cost is low, it is easy to install and disassemble the sleeper, the operation is convenient, and the testing efficiency can be greatly improved;

[0041] 2) During the test, the torsion angle and stress of the sleeper can be monitored in real time, ensuring the accuracy and controllability of the test process. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a structural schematic diagram of the sleeper anti-torsion testing tool according to an embodiment of the present invention;

[0043] Figure 2 It is a structural schematic diagram of the sleeper anti-torsion testing tool from a second viewing angle according to an embodiment of the present invention;

[0044] Figure 3 It is a structural schematic diagram of the sleeper anti-torsion testing tool from the third perspective according to an embodiment of the present invention.

[0045] Description of reference numerals:

[0046] 1. Fixing device; 11. Top plate; 12. Pressing plate; 13. Heightening plate; 14. Hydraulic cylinder; 2. Torsion device; 21. Turning clamp seat; 211. Horizontal plate; 212. Vertical plate; 2120. Limiting slot; 213. Turning clamp plate; 22. Torque wrench; 221. Torque dial; 23. Support seat; 3. Foundation platform; 40. Double-ended screw; 41. First double-ended screw; 411. First fixing nut; 412. Second fixing nut; 413. Third fixing nut; 414. Fourth fixing nut Fixed nut; 42, second double-ended screw; 43, third double-ended screw; 44, fourth double-ended screw; 50, double-ended pull rod; 51, first double-ended pull rod; 511, first adjustment nut; 512, second adjustment nut; 52, second double-ended pull rod; 53, third double-ended pull rod; 54, fourth double-ended pull rod; 60, notch; 61, first notch; 62, second notch; 63, third notch; 64, fourth notch; 100, sleeper; 101, front sleeper; 102, torsion bar; 103, rear sleeper. DETAILED DESCRIPTION

[0047] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0048] Example 1

[0049] like Figure 1-3 As shown, a sleeper anti-torsion testing tool comprises a fixing device 1 and a torsion device 2, wherein the fixing device 1 and the torsion device 2 are both fixed together with a foundation platform 3;

[0050] The fixing device 1 comprises a top plate 11, a pressing plate 12 and a padding plate 13 arranged in sequence from top to bottom, the pressing plate 12 and the foundation platform 3 are fixed together by a double-ended screw 40, and the top plate 11 and the padding plate 13 are fixed together by a double-ended pull rod 50;

[0051] A hydraulic cylinder 14 is provided between the top plate 11 and the pressing plate 12. The upper end of the hydraulic cylinder 14 is fixed to the top plate 11, and the lower end is fixed to the pressing plate 12. The hydraulic cylinder 14 is used to adjust the distance between the pressing plate 12 and the padding plate 13. The pressing plate 12 and the padding plate 13 cooperate to fix the front sleeper 101.

[0052] The torsion device 2 includes a rotating clamp seat 21 and a torque wrench 22. The rotating clamp seat 21 is used to fix the rear sleeper 103. The torque wrench 22 is used to drive the rotating clamp seat 21 to rotate to perform an anti-torsion test on the sleeper 100. The torque wrench 22 is fixed to the foundation platform 3 through a support seat 23.

[0053] The sleeper anti-torsion testing tool described in the present application has a simple overall structure and low cost. The distance between the pressure plate 12 and the raising plate 13 can be adjusted by the hydraulic cylinder 14, which is convenient for installation and disassembly of the sleeper 100. It is easy to operate and can greatly improve the testing efficiency.

[0054] Preferably, the foundation platform 3 is provided with a pre-buried sleeve, and the lower end of the double-headed screw rod 40 is connected and fixed to the pre-buried sleeve.

[0055] Preferably, the sleeper 100 includes a front sleeper 101, a torsion bar 102 and a rear sleeper 103 which are sequentially connected together.

[0056] Preferably, the top plate 11, the pressing plate 12 and the padding plate 13 are all configured as rectangular parallelepiped, and the double-ended screw 40 includes a first double-ended screw 41, a second double-ended screw 42, a third double-ended screw 43 and a fourth double-ended screw 44, wherein the first double-ended screw 41 is arranged at the left front corner of the pressing plate 12, the second double-ended screw 42 is arranged at the right front corner of the pressing plate 12, the third double-ended screw 43 is arranged at the right rear corner of the pressing plate 12, and the fourth double-ended screw 44 is arranged at the left rear corner of the pressing plate 12;

[0057] The top plate 11 is provided with a notch 60, and the notch 60 is used to avoid the double-ended screw rod 40. The notch 60 includes a first notch 61, a second notch 62, a third notch 63 and a fourth notch 64. The first notch 61 is located at the left front corner of the top plate 11 to avoid the first double-ended screw rod 41, the second notch 62 is located at the right front corner of the top plate 11 to avoid the second double-ended screw rod 42, the third notch 63 is located at the right rear corner of the top plate 11 to avoid the third double-ended screw rod 43, and the fourth notch 64 is located at the left rear corner of the top plate 11 to avoid the fourth double-ended screw rod 44; the structure of the pad plate 13 is the same as that of the top plate 11;

[0058] The double-ended pull rod 50 includes a first double-ended pull rod 51, a second double-ended pull rod 52, a third double-ended pull rod 53 and a fourth double-ended pull rod 54, wherein the first double-ended pull rod 51 and the fourth double-ended pull rod 54 are located between the first notch 61 and the fourth notch 64, and the second double-ended pull rod 52 and the third double-ended pull rod 53 are located between the second notch 62 and the third notch 63;

[0059] The pressure plate 12 is provided with avoidance holes, and the avoidance holes are used to avoid the double-headed pull rod 50. The avoidance holes include a first avoidance hole, a second avoidance hole, a third avoidance hole and a fourth avoidance hole. The first avoidance hole and the fourth avoidance hole are located between the first double-headed screw rod 41 and the fourth double-headed screw rod 44, and the second avoidance hole and the third avoidance hole are located between the second double-headed screw rod 42 and the third double-headed screw rod 43. The first avoidance hole is used to avoid the first double-headed pull rod 51, the second avoidance hole is used to avoid the second double-headed pull rod 52, the third avoidance hole is used to avoid the third double-headed pull rod 53, and the fourth avoidance hole is used to avoid the fourth double-headed pull rod 54.

[0060] As a preferred example of the present application, the double-ended screw 40 is provided with a first fixing nut 411, a second fixing nut 412, a third fixing nut 413 and a fourth fixing nut 414, the first fixing nut 411 and the second fixing nut 412 are located on the upper side of the pressure plate 12, the third fixing nut 413 and the fourth fixing nut 414 are located on the lower side of the pressure plate 12, the first fixing nut 411, the second fixing nut 412, the third fixing nut 413 and the fourth fixing nut 414 are used to fix the pressure plate 12; the second double-ended screw 42, the third double-ended screw 43 and the fourth double-ended screw 44 are fixed in the same manner as the first double-ended screw 41;

[0061] The double-headed pull rod 50 is provided with a first adjusting nut 511 and a second adjusting nut 512. The first adjusting nut 511 is located on the upper side of the top plate 11, and the second adjusting nut 512 is located on the lower side of the top plate 11. The first adjusting nut 511 and the second adjusting nut 512 are used together to adjust the distance between the pressure plate 12 and the raising plate 13.

[0062] Specifically, when installing the front sleeper 101, loosen the nut on the double-headed screw 40 to move the pressure plate 12 upward. After the front sleeper 101 is inserted between the pressure plate 12 and the raising plate 13, the hydraulic cylinder 14 is used to drive the pressure plate 12 to move downward and press the front sleeper 101, and then adjust the nut on the double-headed screw 40 to fix the pressure plate 12; when the models of the sleepers to be tested are the same, there is no need to adjust the adjustment nut on the double-headed pull rod 50. When testing sleepers of different models, it is necessary to adjust the distance between the top plate 11 and the raising plate 13. This arrangement can not only firmly fix the fixing device 1 and the foundation platform 3 together, but also facilitate the adjustment of the distance between the top plate 11 and the pressure plate 12 relative to the raising plate 13, thereby improving the flexibility and adaptability of the test and facilitating operation.

[0063] Preferably, flat washers are provided between the top plate 11 and the first adjustment nut 511 and the second adjustment nut 512 , respectively.

[0064] As a preferred example of the present application, the rotating clamp seat 21 includes an L-shaped plate and a rotating clamp plate 213, the L-shaped plate includes a horizontal plate 211 and a vertical plate 212, and the lower end of the vertical plate 212 is vertically connected to the rear end of the horizontal plate 211;

[0065] The vertical plate 212 is provided with a limiting slot hole 2120, and the bolts fix the rotating clamp 213 and the vertical plate 212 together through the limiting slot hole 2120. The bolts can move in the up and down directions along the limiting slot hole 2120, so that the rotating clamp 213 moves up and down relative to the cross plate 211. The rotating clamp 213 and the cross plate 211 are used together to fix the rear rail sleeper 103.

[0066] Specifically, when installing the rear sleeper 103, first move the rotating splint 213 upward to maximize the distance between the rotating splint 213 and the cross plate 211, then insert the rear sleeper 103 between the rotating splint 213 and the cross plate 211, and then move the rotating splint 213 downward to make the rotating splint 213 and the cross plate 211 cooperate to fix the rear sleeper 103. This arrangement has a simple structure, is easy to install and disassemble, and can firmly fix the rear sleeper 103, which is not easy to slip and fall off.

[0067] Preferably, a flat washer is provided between the bolt and the vertical plate 212 to ensure the firmness of the fixation between the rotating clamping plate 213 and the horizontal plate 211 .

[0068] Preferably, the vertical plate 212 is provided with two limiting slots 2120 from left to right, which are respectively matched with bolts to fix the left and right sides of the rotating clamping plate 213.

[0069] Preferably, a first support plate and a second support plate are provided at the upper end of the rotating splint 213, the lower end of the first support plate is vertically connected to the rear end of the rotating splint 213, one end of the second support plate is connected to the rotating splint 213, and the other end is connected to the first support plate. This arrangement can improve the stability of the rotating splint 213 and enhance the clamping force of the rotating splint 213 and the cross plate 211 on the rear rail sleeper 103.

[0070] As a preferred example of the present application, a support plate is provided on the lower side of the raised plate 13, and the support plate is fixed to the foundation platform 3 by anchor bolts to support the raised plate 13;

[0071] An arc plate is provided at the lower side of the transverse plate 211 , and the arc plate is fixed to the foundation platform 3 by anchor bolts to support the transverse plate 211 . The rotating clamp seat 21 can rotate along the arc surface of the arc plate 24 .

[0072] Specifically, the support plate and the arc plate have the same height. When testing the sleeper, this arrangement can improve the stability of the fixing device 1 and the torsion device 2, and can also prevent the sleeper 100 from interfering with the foundation platform 3 during rotation.

[0073] As a preferred example of the present application, a hydraulic device is also included, and the hydraulic device is used to drive the hydraulic cylinder 14 and the torque wrench 22 .

[0074] Specifically, this arrangement has a simple structure, high power output, and facilitates precise control of the hydraulic cylinder 14 and the torque wrench 22 .

[0075] As a preferred example of the present application, the torque wrench 22 is provided with a torque dial 221, and the torque dial 221 is used to display the torque value.

[0076] Specifically, the torque dial 221 can intuitively display the torque value, which is convenient for the operator to understand the current torque situation, facilitate real-time monitoring and control, and ensure the accuracy and reliability of the test results.

[0077] Preferably, the torque dial 221 is provided with a torque recorder, which is used to record the torque value to facilitate subsequent data analysis and recording.

[0078] Preferably, the rotating clamp seat 21 is provided with a signal transmitter, and the signal transmitter is used to transmit the test result to an external user end.

[0079] Preferably, the rotating clamp seat 21 is provided with a data transmission interface, and the data transmission interface is used to plug in an external device and transmit the test data to the external device.

[0080] As a preferred example of the present application, the rotating clamp seat 21 is provided with an inclinometer, and the inclinometer is used to detect the rotation angle of the rotating clamp seat 21.

[0081] Specifically, the inclinometer can accurately measure the rotation angle of the rotating clamp seat 21, provide a precise angle value, and ensure the accuracy and reliability of the test result.

[0082] The present invention also provides a sleeper torsion resistance testing method, which is used for the sleeper torsion resistance testing tool described above, and comprises the following steps:

[0083] Step 1: Start the hydraulic device, adjust the first fixing nut 411 and the second fixing nut 412 on the double-ended screw 40 to move upward, and control the hydraulic cylinder 14 to drive the pressing plate 12 to move upward to a set position;

[0084] Step 2: Use an overhead crane to lift the sleeper 100 and insert the front sleeper 101 between the pressing plate 12 and the raising plate 13;

[0085] Step 3: Install the twisting device 2 and insert the rear sleeper 103 between the rotating clamping plate 213 and the cross plate 211;

[0086] Step 4: Adjust the distance between the rotating clamp plate 213 and the cross plate 211 to fix the rear sleeper 103, control the hydraulic cylinder 14 to drive the pressing plate 12 to move downward to press the front sleeper 101, adjust the first fixing nut 411 and the second fixing nut 412 on the double-headed screw 40 to fix the pressing plate 12, and adjust the rotating clamp seat 21 at the same time to make the cross plate 211 parallel to the foundation platform 3, and the value of the inclinometer is reset to zero;

[0087] Step 5: Connect the torque wrench 22 to the hydraulic device and adjust the value of the torque dial 221 to zero;

[0088] Step 6: Control the torque wrench 22 to drive the rotating clamp seat 21 to rotate, and perform an anti-torsion test on the sleeper 100. When the rotation angle of the rotating clamp seat 21 reaches the set angle, control the rotating clamp seat 21 to stop rotating, and record the value of the torque dial 221;

[0089] Step 7: Control the rotating clamp seat 21 to rotate in the opposite direction to the starting position, and fix the sleeper 100 on the suspension rope of the overhead travelling vehicle;

[0090] Step 8: Move the turning clamp 213 upward to release the fixation on the rear sleeper 103, remove the torsion device 2, adjust the first fixing nut 411 and the second fixing nut 412 on the double-headed screw 40 to move upward, control the hydraulic cylinder 14 to drive the pressure plate 12 to move upward to the set position, use the overhead crane to remove the front sleeper 101 from between the pressure plate 12 and the raising plate 13, and the test is completed.

[0091] Specifically, this method facilitates the installation and disassembly of the sleeper 100 and fixes it securely, greatly improving the test efficiency. During the test, the torsion angle and force conditions can be monitored in real time, ensuring the accuracy and controllability of the test process.

[0092] As a preferred example of the present application, in step 1, the models of the supporting plate and the arc plate are selected according to the specifications of the sleeper 100 to be tested, and the raising plate 13 is moved upward by adjusting the first adjusting nut 511 and the second adjusting nut 512, and the supporting plate 14 of the corresponding specifications is replaced, and then the raising plate 13 is moved to the corresponding position and fixed, and finally the arc plate 24 is replaced.

[0093] Specifically, when testing sleepers 100 of different specifications, it is necessary to select the models of the supporting flat plate and the arc plate according to the specifications of the sleeper 100 to be tested, and at the same time adjust the distance between the top plate 11 and the raising plate 13. This setting facilitates testing of sleepers of different specifications and expands the scope of application of the sleeper anti-torsion test tooling.

[0094] The sleeper anti-torsion testing tool and testing method described in the present application have the following advantages: 1) The overall structure is simple, the cost is low, and it is convenient for the installation and disassembly of the sleeper 100. The operation is convenient and can greatly improve the testing efficiency; 2) During the test, the torsion angle and force conditions of the sleeper 100 can be monitored in real time to ensure that the testing process is accurate and controllable.

[0095] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

Claims

1. A sleeper anti-torsion test tool, characterized in that: It comprises a fixing device (1) and a twisting device (2), wherein the fixing device (1) and the twisting device (2) are both fixed together with a foundation platform (3); The fixing device (1) comprises a top plate (11), a pressure plate (12) and a padding plate (13) which are arranged in sequence from top to bottom, the pressure plate (12) and the foundation platform (3) are fixed together via a double-headed screw rod (40), and the top plate (11) and the padding plate (13) are fixed together via a double-headed pull rod (50); A hydraulic cylinder (14) is provided between the top plate (11) and the pressure plate (12); the upper end of the hydraulic cylinder (14) is fixed to the top plate (11), and the lower end is fixed to the pressure plate (12); the hydraulic cylinder (14) is used to adjust the distance between the pressure plate (12) and the padding plate (13); the pressure plate (12) and the padding plate (13) are used together to fix the front rail sleeper (101); The torsion device (2) comprises a rotating clamp seat (21) and a torque wrench (22); the rotating clamp seat (21) is used to fix the rear rail sleeper (103); the torque wrench (22) is used to drive the rotating clamp seat (21) to rotate to perform an anti-torsion test on the rail sleeper (100); and the torque wrench (22) is fixed to the foundation platform (3) via a support seat (23).

2. The sleeper anti-torsion testing tool according to claim 1 is characterized in that: The rotating clamp seat (21) comprises an L-shaped plate and a rotating clamp plate (213), wherein the L-shaped plate comprises a horizontal plate (211) and a vertical plate (212), and the lower end of the vertical plate (212) is vertically connected to the rear end of the horizontal plate (211); The vertical plate (212) is provided with a limiting slot hole (2120), and bolts are used to fix the rotating clamping plate (213) and the vertical plate (212) together through the limiting slot hole (2120). The bolts can move in the up-down direction along the limiting slot hole (2120), so that the rotating clamping plate (213) moves up-down relative to the transverse plate (211), and the rotating clamping plate (213) and the transverse plate (211) are used to fix the rear rail sleeper (103) in cooperation.

3. The sleeper anti-torsion testing tool according to claim 2 is characterized in that: A supporting plate is provided on the lower side of the raised plate (13), and the supporting plate is fixed to the foundation platform (3) by anchor bolts, so as to support the raised plate (13); An arc-shaped plate is arranged on the lower side of the transverse plate (211), and the arc-shaped plate is fixed to the foundation platform (3) by anchor bolts, and is used to support the transverse plate (211). The rotating clamp seat (21) can rotate along the arc surface of the arc-shaped plate (24).

4. The sleeper anti-torsion testing tool according to claim 1 is characterized in that: The top plate (11) is provided with a notch (60) for avoiding the double-headed screw rod (40); the heightening plate (13) has the same structure as the top plate (11); the pressing plate (12) is provided with an avoidance hole for avoiding the double-headed pull rod (50).

5. The sleeper anti-torsion testing tool according to claim 1 is characterized in that: The double-ended screw (40) is provided with a first fixing nut (411), a second fixing nut (412), a third fixing nut (413) and a fourth fixing nut (414); the first fixing nut (411) and the second fixing nut (412) are located on the upper side of the pressing plate (12); the third fixing nut (413) and the fourth fixing nut (414) are located on the lower side of the pressing plate (12); the first fixing nut (411), the second fixing nut (412), the third fixing nut (413) and the fourth fixing nut (414) are used together to fix the pressing plate (12); The double-headed pull rod (50) is provided with a first adjusting nut (511) and a second adjusting nut (512), wherein the first adjusting nut (511) is located on the upper side of the top plate (11), and the second adjusting nut (512) is located on the lower side of the top plate (11), and the first adjusting nut (511) and the second adjusting nut (512) are used together to adjust the distance between the pressure plate (12) and the padding plate (13).

6. The sleeper anti-torsion testing tool according to claim 1, characterized in that: It also comprises a hydraulic device, which is used to drive the hydraulic cylinder (14) and the torque wrench (22).

7. The sleeper anti-torsion testing tool according to claim 1 is characterized in that: The torque wrench (22) is provided with a torque dial (221), and the torque dial (221) is used to display the torque value.

8. The sleeper anti-torsion testing tool according to claim 1, characterized in that: The rotating clamp seat (21) is provided with an inclinometer, and the inclinometer is used to detect the rotation angle of the rotating clamp seat (21).

9. A sleeper torsion resistance testing method, used for the sleeper torsion resistance testing tool as claimed in any one of claims 1 to 8, characterized in that: Includes steps: Step 1: Start the hydraulic device, adjust the first fixing nut (411) and the second fixing nut (412) on the double-ended screw (40) to move upward, and control the hydraulic cylinder (14) to drive the pressing plate (12) to move upward to a set position; Step 2: Use an overhead crane to lift the sleeper (100) and insert the front sleeper (101) between the pressing plate (12) and the raising plate (13); Step 3: Install the twisting device (2) and insert the rear sleeper (103) between the rotating clamping plate (213) and the cross plate (211); Step 4: Adjust the distance between the rotating clamping plate (213) and the cross plate (211) to fix the rear rail sleeper (103), control the hydraulic cylinder (14) to drive the pressing plate (12) to move downward to press the front rail sleeper (101), adjust the first fixing nut (411) and the second fixing nut (412) on the double-headed screw (40) to fix the pressing plate (12), and adjust the rotating clamping seat (21) at the same time so that the cross plate (211) is parallel to the foundation platform (3), and the value of the inclinometer is reset to zero; Step 5: Connect the torque wrench (22) to the hydraulic device and adjust the value of the torque dial (221) to zero; Step 6: Control the torque wrench (22) to drive the rotating clamp seat (21) to rotate, and perform an anti-torsion test on the sleeper (100). When the rotation angle of the rotating clamp seat (21) reaches a set angle, control the rotating clamp seat (21) to stop rotating, and record the value of the torque dial (221); Step 7: Control the rotating clamp seat (21) to rotate in the opposite direction to the starting position, and fix the sleeper (100) on the suspension rope of the overhead traveling vehicle; Step 8: Move the rotating clamp plate (213) upward to release the fixation of the rear rail sleeper (103), remove the twisting device (2), adjust the first fixing nut (411) and the second fixing nut (412) on the double-headed screw (40) to move upward, control the hydraulic cylinder (14) to drive the pressure plate (12) to move upward to the set position, use the overhead crane to remove the front rail sleeper (101) from between the pressure plate (12) and the padding plate (13), and the test is completed.

10. The sleeper anti-torsion testing method according to claim 9, characterized in that: In step 1, the models of the supporting plate and the arc plate are selected according to the specifications of the sleeper (100) to be tested, and the raising plate (13) is moved upward by adjusting the first adjusting nut (511) and the second adjusting nut (512), and the supporting plate (14) of the corresponding specifications is replaced, and then the raising plate (13) is moved to the corresponding position and fixed, and finally the arc plate (24) is replaced.

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