Shear force testing device for rail

Abstract

The utility model relates to a shearing force testing device for a rail, and belongs to the field of testing devices, the shearing force testing device is arranged on the rail and comprises a plurality of groups of detection assemblies, each group of detection assemblies comprises a support and a shearing force sensor, the support is arranged on the rail, a clamping assembly is arranged on the support, and the shearing force sensor is arranged on the clamping assembly. The clamping assembly is used for abutting the shearing force sensor against the surface of the track, an insulating sheet is arranged between the shearing force sensor and the track, and an insulating block is arranged between the clamping assembly and the shearing force sensor. During actual use, the insulation sheet and the insulation block are matched, so that the current generated when a train passes through the track is not easy to influence the shear force sensor, the shear force sensor can detect the deformation of the track more accurately, and the test precision of the test device is improved.

Description

Technical Field

[0001] The present application relates to the field of testing devices, and in particular to a shear force testing device for rails. Background Art

[0002] With the rapid development of the railway transportation industry, the safety performance of rails has become one of the most important factors in ensuring the safe operation of trains. Currently, the railway industry generally uses various testing equipment and technologies to assess the health of rails, including rail shear force testing.

[0003] Currently, shear force sensors are commonly used for testing. To prevent damage to the rails, a special mounting structure is required to secure the shear force sensor. This mounting structure primarily consists of two opposing clamping plates, one of which is used to press the shear force sensor against the rail surface to monitor its health.

[0004] In actual application, when a train passes over the rails, some current will be generated. At this time, the current will be directly transmitted to the shear force sensor or indirectly transmitted to the shear force sensor through the clamping plate, thereby reducing the detection accuracy of the shear force sensor, so it needs to be improved. Utility Model Content

[0005] In order to improve the above problems, the present application provides a shear force testing device for rails.

[0006] This application provides a rail shear force testing device, which adopts the following technical solution:

[0007] A shear force testing device for rails is arranged on the track and includes several groups of detection components. Each group of detection components includes a bracket and a shear force sensor. The bracket is arranged on the track and is provided with a clamping assembly. The clamping assembly is used to press the shear force sensor against the track surface. An insulating sheet is provided between the shear force sensor and the track, and an insulating block is provided between the clamping assembly and the shear force sensor.

[0008] By employing this technical solution, workers use a clamping assembly to secure the shear force sensor to the track, allowing it to more stably detect track deformation. When a train passes over the track, the insulating sheet and insulating block prevent the current generated by the train from affecting the shear force sensor, allowing it to more accurately detect track deformation, thereby improving the testing device's detection accuracy.

[0009] Preferably, the clamping assembly includes a clamping column and a fixing ring, the clamping column is threadedly connected to the bracket, the clamping column is connected to the insulating block, the fixing ring is threadedly connected to the clamping column, and the fixing ring abuts against the bracket.

[0010] By employing this technical solution, a worker rotates the clamping column, moving it toward the track. After the clamping column secures the shear force sensor against the track, the worker rotates the retaining ring, pressing it against the bracket to secure the clamping column. This reduces the possibility of movement during use, allowing the clamping column to more stably secure the shear force sensor.

[0011] Preferably, a connecting column is provided on the clamping column, a connecting groove is provided on the insulating block, and the connecting column extends into the connecting groove.

[0012] By adopting the above technical solution, the connecting column increases the contact area between the clamping column and the insulating block, thereby improving the connection stability between the clamping column and the insulating block.

[0013] Preferably, a plurality of gaskets are provided between the clamping column and the insulating block, the gaskets close to the insulating block abut against the insulating block, and the gaskets close to the clamping column abut against the clamping column.

[0014] By adopting the above technical solution, the gasket makes it difficult for the clamping column to cause damage to the insulating block, so that the insulating block can more stably isolate the current generated when the train passes through the track.

[0015] Preferably, a fixing frame is provided on the side of the track facing away from the bracket, and the fixing frame is connected to the bracket via a fixing assembly.

[0016] By adopting this technical solution, after the shear force sensor is installed, the worker places the mounting bracket on the track and then uses the fixing assembly to connect the mounting bracket to the bracket. At this point, the mounting bracket and the fixing assembly work together to provide a fixed position for the bracket, reducing the possibility of the bracket moving during use, allowing the shear force sensor to more stably detect track deformation.

[0017] Preferably, the fixing assembly includes a fixing column, the fixing column passes through the bracket and the fixing frame, and the bracket and the fixing frame are both threadedly connected to the fixing column.

[0018] By adopting the above technical solution, workers pass the fixing column through the bracket and the fixing frame in sequence, so that the bracket and the fixing frame are both threadedly connected to the fixing column, thereby completing the connection between the bracket and the fixing frame, thereby facilitating the connection between the fixing frame and the bracket.

[0019] Preferably, the fixing assembly also includes a fixing rod and several support columns, each of the support columns is rotatably connected to the fixing rod, a torsion spring is wound around the rotating shaft of each support column, each of the support columns is abutted against the side of the fixing frame away from the bracket, and a limit plate is provided on the fixing rod, and the limit plate is abutted against the side of the bracket away from the fixing frame.

[0020] Using this technical solution, workers sequentially thread the fixing rods through the bracket and mounting bracket. As each support column passes through the mounting bracket, the torsion springs on each column remain compressed. When each column is fully extended from the mounting bracket, the torsion springs' rebound force causes it to reverse and abut against the mounting bracket. Simultaneously, the stop plates abut the bracket and cooperate with each support column to limit the mounting bracket and bracket, reducing the possibility of separation.

[0021] Preferably, a protective shell is provided on the bracket, and the protective shell is used to protect the shear force sensor.

[0022] By adopting the above technical solution, the protective shell provides protection for each detection component, reducing the possibility of the external environment causing damage to each group of detection components.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. By providing insulating blocks and insulating sheets, the possibility of the current generated when the train passes over the track affecting the shear force sensor is reduced, allowing the shear force sensor to operate more stably, thereby improving the overall detection accuracy of the test device;

[0025] 2. By providing a clamping assembly, the clamping assembly limits the shear force sensor, reducing the possibility of the shear force sensor moving during use, further improving the stability of the shear force sensor during operation, and thus further improving the detection accuracy of the test device;

[0026] 3. By providing a fixing frame and a fixing assembly, a limit is provided for the bracket, which reduces the possibility of movement of the bracket and the clamping assembly during use, thereby further improving the detection accuracy of the test device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall structure of Example 1 of the present application;

[0028] Figure 2 This is a structural diagram of the first embodiment of the present application for illustrating the positional relationship between the protective shell and the track;

[0029] Figure 3 This is a schematic diagram of the overall structure of Example 2 of the present application;

[0030] Figure 4 yes Figure 3 Schematic diagram of the enlarged structure of part A in the middle.

[0031] Explanation of the accompanying drawings: 1. Track; 2. Detection assembly; 21. Bracket; 22. Shear force sensor; 3. Clamping assembly; 31. Clamping column; 311. Connecting column; 32. Fixing ring; 4. Insulating sheet; 5. Insulating block; 51. Connecting groove; 6. Gasket; 7. Fixing frame; 71. First fixing groove; 72. Fixing block; 73. Spring; 8. Fixing assembly; 81. Fixing column; 82. Fixing rod; 821. Limiting plate; 83. Support column; 831. Second fixing groove; 84. Torsion spring; 9. Protective shell. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] Example 1:

[0034] The present application discloses a shear force testing device for rails. Figure 1 A shear force testing device for rails is installed on a track 1 and includes several detection components 2. Each detection component 2 includes a bracket 21 and a shear force sensor 22. The bracket 21 is installed on the track 1 and is equipped with a clamping component 3. The clamping component 3 is used to press the shear force sensor 22 against the track 1. An insulating sheet 4 is installed between the shear force sensor 22 and the track 1, and an insulating block 5 is installed between the clamping component 3 and the shear force sensor 22. When a train passes over the track 1 equipped with the detection components 2 and generates current, the insulating sheet 4 and the insulating block 5 cooperate to reduce the possibility of the current affecting the detection accuracy of the shear force sensor 22, thereby improving the testing accuracy of the testing device.

[0035] Reference Figure 1 The clamping assembly 3 includes a clamping column 31 and a fixing ring 32 . The clamping column 31 is threadedly connected to the bracket 21 , and the fixing ring 32 is threadedly connected to the clamping column 31 , and the clamping column 31 abuts against the insulating block 5 .

[0036] The worker places the insulating sheet 4 between the track 1 and the shear force sensor 22, and then rotates the clamping column 31 so that the clamping column 31 moves toward the shear force sensor 22. At the same time, the clamping column 31 drives the insulating block 5 to move toward the shear force sensor 22. When the insulating block 5 presses against the shear force sensor 22, the shear force sensor 22 simultaneously presses the insulating sheet 4 against the track 1, completing the installation of the shear force sensor 22. The worker then rotates the fixing ring 32 so that the fixing ring 32 presses against the bracket 21, completing the limiting of the clamping column 31, so that the clamping column 31 can more stably press the shear force sensor 22 against the track 1, providing convenience for the subsequent shear force sensor 22 to more stably detect the deformation of the track 1.

[0037] Reference Figure 1In order to improve the connection stability between the clamping column 31 and the insulating block 5, a connecting column 311 is fixed on the clamping column 31, and a connecting groove 51 is opened on the insulating block 5, and the connecting column 311 extends into the connecting groove 51.

[0038] A plurality of gaskets 6 are provided between the insulating column and the insulating block 5 . The gaskets 6 close to the insulating block 5 abut against the insulating block 5 , and the gaskets 6 close to the clamping column 31 abut against the clamping column 31 .

[0039] The connection post 311 cooperates with the inner wall of the connection groove 51, increasing the contact area between the clamping post 31 and the insulating block 5, thereby improving the connection stability between the clamping post 31 and the insulating block 5, allowing the clamping post 31 to more stably retain the insulating block 5. At the same time, the spacer 6 reduces the possibility of the clamping post 31 damaging the insulating block 5, ensuring that the insulating block 5 more stably performs its insulation function.

[0040] Reference Figure 1 In order to improve the connection stability between the bracket 21 and the track 1, a fixing bracket 7 is provided on the side of the track 1 away from the bracket 21, and the fixing bracket 7 is connected to the bracket 21 through a fixing component 8.

[0041] The fixing assembly 8 includes a fixing column 81 . The fixing column 81 passes through the bracket 21 and the fixing frame 7 . The bracket 21 and the fixing frame 7 are both threadedly connected to the fixing column 81 .

[0042] After adjusting the position of clamping column 31, the worker places fixing frame 7 on track 1 and inserts fixing column 81 into bracket 21, threading fixing column 81 into bracket 21. The worker then continues to rotate fixing column 81, threading fixing column 81 into fixing frame 7, completing the connection between fixing frame 7 and bracket 21. At this point, fixing frame 7 and fixing column 81 cooperate to provide a position limit for bracket 21, reducing the possibility of bracket 21 moving during use. This allows shear force sensor 22 to more stably detect deformation of track 1, further improving the testing accuracy of the test device.

[0043] Reference Figure 2 A protective shell 9 is provided on the bracket 21, and the protective shell 9 is provided on each group of detection components 2 to provide protection for each shear force sensor 22, thereby reducing the possibility of the shear force sensor 22 being damaged by the external environment.

[0044] The implementation principle of Example 1 of the present application is: during the shear force test on the track 1, when the train passes through the track 1 equipped with the detection component 2, the insulating sheet 4 and the insulating block 5 make it difficult for the current generated when the train passes through the track 1 to be conducted to the shear force sensor 22, thereby reducing the possibility of the current affecting the detection accuracy of the shear force sensor 22, thereby improving the test accuracy of the testing device.

[0045] Example 2:

[0046] Reference Figure 3 and Figure 4 , which differs from the first embodiment of the present application in that the fixing assembly 8 further includes a fixing rod 82 and a plurality of support columns 83. Each support column 83 is rotatably connected to the fixing rod 82, and a torsion spring 84 is wound around the rotation axis of each support column 83. Furthermore, each support column 83 abuts against the side of the fixing frame 7 facing away from the bracket 21. A limit plate 821 is provided on the fixing rod 82, and the limit plate 821 abuts against the side of the bracket 21 facing away from the fixing frame 7.

[0047] When it is necessary to connect the fixing frame 7 and the bracket 21, the worker sequentially passes the fixing rod 82 through the bracket 21 and the fixing frame 7. As the fixing rod 82 passes through the bracket 21 and the fixing frame 7, the support column 83 is squeezed and rotated, causing the torsion spring 84 to be in a compressed state. After the support column 83 has completely passed through the fixing frame 7, the torsion spring 84's rebound force causes the support column 83 to reverse and abut against the fixing frame 7, while the limit plate 821 abuts against the bracket 21. At this point, under the limiting action of the limit plate 821 and each support column 83, the connection between the fixing frame 7 and the bracket 21 is completed, reducing the possibility of separation between the fixing frame 7 and the bracket 21.

[0048] Reference Figure 3 and Figure 4 The fixing frame 7 has a plurality of first fixing slots 71 on the side facing away from the bracket 21. A fixing block 72 is slidably connected to each first fixing slot 71. A spring 73 is disposed in each first fixing slot 71. One end of the spring 73 is connected to the bottom of the first fixing slot 71, and the other end is connected to the fixing block 72. Each fixing block 72 corresponds to a support column 83. The support column 83 has a second fixing slot 831 defined therein. The fixing block 72 extends into the corresponding second fixing slot 831.

[0049] After each support column 83 abuts against the fixing frame 7, the worker rotates the fixing rod 82 to drive the support column 83 to rotate. After the support column 83 contacts the fixing block 72 at the corresponding position, the fixing block 72 retracts into the first fixing groove 71, causing the spring 73 to be in a compressed state. When the fixing block 72 is opposite to the second fixing groove 831 at the corresponding position, under the action of the rebound force of the spring 73, the fixing block 72 is snapped into the second fixing groove 831 at the corresponding position to limit the support column 83. At this time, under the limiting action of the fixing block 72, the possibility of the fixing rod 82 rotating during use is reduced, thereby further improving the connection stability between the fixing frame 7 and the bracket 21.

[0050] The working principle of the second embodiment of the present application is as follows: when it is necessary to connect the fixing frame 7 and the bracket 21, the worker sequentially passes the fixing rod 82 through the bracket 21 and the fixing rod 82. After each support column 83 is fully extended from the fixing frame 7, under the action of the rebound force of the torsion spring 84, each support column 83 abuts against the fixing frame 7. At the same time, the limiting plate 821 abuts against the bracket 21, thus completing the connection between the fixing frame 7 and the bracket 21. This reduces the possibility of movement of the fixing frame 7 and the bracket 21 during subsequent use, allowing the testing device to more stably detect the deformation of the track 1, thereby improving the detection accuracy of the testing device.

[0051] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A shear force testing device for a rail, arranged on a rail (1), characterized in that: The invention comprises a plurality of detection components (2), each of the detection components (2) comprising a bracket (21) and a shear force sensor (22), the bracket (21) being arranged on a track (1), the bracket (21) being provided with a clamping component (3), the clamping component (3) being used for pressing the shear force sensor (22) against the surface of the track (1), an insulating sheet (4) being provided between the shear force sensor (22) and the track (1), and an insulating block (5) being provided between the clamping component (3) and the shear force sensor (22).

2. A rail shear force testing device according to claim 1, characterized in that: The clamping assembly (3) comprises a clamping column (31) and a fixing ring (32), wherein the clamping column (31) is threadedly connected to the bracket (21), the clamping column (31) is connected to the insulating block (5), and the fixing ring (32) is threadedly connected to the clamping column (31), and the fixing ring (32) is in contact with the bracket (21).

3. The rail shear force testing device according to claim 2, characterized in that: A connecting column (311) is provided on the clamping column (31), a connecting groove (51) is provided on the insulating block (5), and the connecting column (311) extends into the connecting groove (51).

4. The rail shear force testing device according to claim 2, characterized in that: A plurality of gaskets (6) are provided between the clamping column (31) and the insulating block (5); the gaskets (6) close to the insulating block (5) abut against the insulating block (5); and the gaskets (6) close to the clamping column (31) abut against the clamping column (31).

5. The rail shear force testing device according to claim 1, characterized in that: A fixing frame (7) is provided on the side of the track (1) facing away from the bracket (21), and the fixing frame (7) is connected to the bracket (21) via a fixing assembly (8).

6. The rail shear force testing device according to claim 5, characterized in that: The fixing assembly (8) comprises a fixing column (81), the fixing column (81) passes through the bracket (21) and the fixing frame (7), and the bracket (21) and the fixing frame (7) are both threadedly connected to the fixing column (81).

7. The rail shear force testing device according to claim 5, characterized in that: The fixing assembly (8) further comprises a fixing rod (82) and a plurality of support columns (83), each of the support columns (83) being rotatably connected to the fixing rod (82), a torsion spring (84) being wound around the rotating shaft of each of the support columns (83), each of the support columns (83) being in contact with a side of the fixing frame (7) facing away from the bracket (21), a limiting plate (821) being provided on the fixing rod (82), and the limiting plate (821) being in contact with a side of the bracket (21) facing away from the fixing frame (7).

8. The rail shear force testing device according to claim 1, characterized in that: A protective shell (9) is provided on the bracket (21), and the protective shell (9) is used to protect the shear force sensor (22).

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