Telescopic device resistance test simulation device

Abstract

The utility model discloses a resistance test simulation device for an expansion piece. The resistance test simulation device comprises a bearing foundation, a plurality of wooden switch tie assemblies and two groups of expansion force measuring devices, the wooden switch tie assemblies are used for being sequentially arranged on the bearing foundation at intervals in a sliding and supporting mode in the length direction of the bearing foundation, and the wooden switch tie assemblies can be detachably fixed to the bearing foundation so that a track structure for actual installation of the expansion piece can be simulated on the bearing foundation. The two sets of telescopic force measuring devices are arranged at the two ends of a track structure formed by laying a plurality of wooden switch tie assemblies in a sliding and supporting mode, each telescopic force measuring device can be detachably fixed to the bearing foundation, and the two sets of telescopic force measuring devices are used for abutting against telescopic devices installed in the track structure after extending outwards so as to simulate the stress condition of the telescopic devices in the actual installation process. According to the device, a special tool does not need to be manufactured, the manufacturing cost and the machining difficulty can be effectively reduced, meanwhile, the simulation device formed through assembly is detachable, the simulation device can be disassembled into parts after a test is completed, and storage and placement are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of wooden switch sleeper laying, and particularly to a simulation device for testing the resistance of an expansion joint. Background Technique

[0002] At present, it is very difficult to test the expansion resistance of the expansion joint during the trial laying of wooden switch sleepers. The spacing between the switch sleepers is not fixed and varies greatly during the laying of wooden switch sleepers. Therefore, in the prior art, a special tooling is made each time to meet the expansion resistance test. Since the special tooling does not have universality, the manufacturing cost is increased, the difficulty of the manufacturing process is increased, and it is not conducive to factory manufacturing. Content of the Utility Model

[0003] The utility model provides a simulation device for testing the resistance of an expansion joint to solve the technical problems in the prior art that a special tooling needs to be made each time to meet the expansion resistance test, and the special tooling does not have universality, so the manufacturing cost is increased, the difficulty of the manufacturing process is increased, and it is not conducive to factory manufacturing.

[0004] The technical scheme adopted by the utility model is as follows:

[0005] A simulation device for testing the resistance of an expansion joint is used to simulate the actual installation and force-bearing conditions of the expansion joint and test the expansion resistance of the expansion joint. The simulation device includes: a fixed supporting foundation, a plurality of wooden switch sleeper assemblies, and two sets of expansion force measuring devices; the plurality of wooden switch sleeper assemblies are used to be arranged at intervals along the length direction of the supporting foundation and slidably supported on the supporting foundation, and each wooden switch sleeper assembly can also be detachably fixed to the supporting foundation to simulate the track structure of the actual installation of the expansion joint on the supporting foundation; the two sets of expansion force measuring devices are slidably supported at both ends of the track structure formed by laying the plurality of wooden switch sleeper assemblies, and each expansion force measuring device can also be detachably fixed to the supporting foundation. The two sets of expansion force measuring devices are used to respectively abut against the expansion joint installed in the track structure after extending out to simulate the force-bearing conditions during the actual installation of the expansion joint.

[0006] Further, the supporting foundation includes a plurality of supporting rails arranged in parallel and at intervals, and each supporting rail is detachably fixed to the ground respectively; the plurality of wooden switch sleeper assemblies are used to be arranged at intervals along the length direction of the supporting rails and slidably supported on the plurality of supporting rails, and each wooden switch sleeper assembly can be detachably fixed to the plurality of supporting rails under the action of an external force; the two sets of expansion force measuring devices are respectively slidably supported on two groups of the plurality of supporting rails, and each expansion force measuring device can be detachably fixed to the plurality of supporting rails under the action of an external force.

[0007] Further, each supporting rail includes a square steel base extending along its length direction and a steel rail fixed to the top of the square steel base along the length direction of the square steel base; the square steel base is detachably fixed to the ground through expansion bolts.

[0008] Further, the wooden switch sleeper assembly includes a strip-shaped wooden switch sleeper and multiple groups of first fixed caliper seats provided corresponding to multiple support rails; the multiple groups of first fixed caliper seats are slidably supported on the multiple support rails one by one, and each first fixed caliper seat is used to clamp the corresponding support rail under the action of an external force; the wooden switch sleeper is simultaneously supported within the multiple groups of first fixed caliper seats.

[0009] Further, the first fixed caliper seat includes a first fixed caliper and a mounting block fixed to the top of the first fixed caliper; the first fixed caliper is slidably supported on the corresponding support rail and can relatively clamp the support rail from both sides of the support rail under the action of an external force; a mounting groove for accommodating the wooden switch sleeper is formed by concaving the top of the mounting block, and the wooden switch sleeper is simultaneously accommodated within the multiple mounting grooves of the multiple groups of first fixed caliper seats.

[0010] seats.

[0011] Further, the first fixed caliper includes a mounting plate, two groups of mounting supports arranged at intervals and vertically connected to the lower surface of the mounting plate, a first driving screw threadedly passing through the two groups of mounting supports, and two clamping blocks for relatively clamping the support rail; external threads with opposite helix directions are respectively machined on the outer circles at both ends of the first driving screw; the two clamping blocks are respectively installed on the outer circles at both ends of the first driving screw, and the two clamping blocks are also located between the two groups of mounting supports so that the two clamping blocks relatively approach or move away during the rotation of the first driving screw.

[0012] Further, the telescopic force measuring device includes a mounting frame, multiple groups of second fixed caliper seats and multiple groups of telescopic force measuring devices; the multiple groups of second fixed caliper seats are slidably supported on the multiple support rails one by one, and each second fixed caliper seat is used to clamp the corresponding support rail under the action of an external force; the mounting frame is simultaneously fixedly connected to the tops of the multiple groups of second fixed caliper seats; the multiple groups of telescopic force measuring devices are sequentially connected to the mounting frame at intervals along the transverse direction of the mounting frame.

[0013] Further, the second fixed caliper seat includes a second fixed caliper and a mounting seat fixed to the top of the second fixed caliper; the second fixed caliper is slidably supported on the corresponding support rail and can relatively clamp the support rail from both sides of the support rail under the action of an external force; the mounting frame is supported on the mounting seat and is fixed to the mounting seat through a bolt passing through both or is fixedly welded to the mounting seat.

[0014] Further, the second fixed caliper includes a mounting plate, two groups of mounting supports arranged at intervals and vertically connected to the lower surface of the mounting plate, a second driving screw threadedly passing through the two groups of mounting supports, and two clamping blocks for relatively clamping the support rail; external threads with opposite helix directions are respectively machined on the outer circles at both ends of the second driving screw; the two clamping blocks are respectively installed on the outer circles at both ends of the second driving screw, and the two clamping blocks are also located between the two groups of mounting supports so that the two clamping blocks relatively approach or move away during the rotation of the second driving screw.

[0015] Further, each set of telescopic force measuring devices includes two telescopic force meters, which are correspondingly arranged on the mounting frame, and the fixed end of each telescopic force meter is fixed to the mounting frame, and its telescopic end faces the track structure.

[0016] The utility model has the following beneficial effects:

[0017] The utility model relates to a telescopic device resistance test simulation device for laying wooden switch ties, which is applicable to the telescopic resistance test of the telescopic device for laying wooden switch ties. First, a bearing foundation fixed to the ground is laid to ensure the stability of the overall bearing of the device; then, multiple wooden switch tie assemblies are respectively fixed to the bearing foundation, and the distance between the laid wooden switch tie assemblies is adjusted by using the detachable connection between the wooden switch tie assemblies and the bearing foundation to accurately, precisely and conveniently simulate the actual installation state of the telescopic device on site; finally, through the detachable fixation of the telescopic force measuring device to the bearing foundation, the telescopic force measuring device is fixed at a suitable position on the bearing foundation, and finally the telescopic force measuring device is started to conduct the telescopic resistance test of the telescopic device. The device of the utility model simulates the on-site installation and stress scenarios of the telescopic device, is used for simulating and testing the telescopic state of the telescopic device, and the wooden switch tie assemblies and the telescopic force measuring device are respectively detachably fixed to the bearing foundation. Therefore, not only is it unnecessary to manufacture special tooling, the manufacturing cost and processing difficulty can be effectively reduced, but also the wooden switch tie assemblies can be adjusted on the bearing foundation, which is convenient, flexible and has little limitation. At the same time, the assembled simulation device is detachable and can be disassembled into parts after the test, which is convenient for storage and placement.

[0018] In addition to the purposes, features and advantages described above, the utility model has other purposes, features and advantages. The following will refer to the drawings for a further detailed description of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings forming a part of this application are used to provide a further understanding of the utility model, and the schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an improper limitation to the utility model. In the drawings:

[0020] Figure 1 is a top view structural schematic diagram of the telescopic device resistance test simulation device of the preferred embodiment of the utility model;

[0021] Figure 2 is a front view cross-sectional view of the telescopic force measuring device;

[0022] Figure 3 is a top view structural schematic diagram of the telescopic force measuring device;

[0023] Figure 4 is a front view cross-sectional view of the wooden switch tie assembly;

[0024] Figure 5 It is a schematic top view structure diagram of a wooden switch sleeper assembly;

[0025] Figure 6 It is a schematic top view structure diagram of a bearing foundation;

[0026] Figure 7 It is Figure 6 a schematic left view structure diagram of;

[0027] Figure 8 It is a schematic front sectional view structure diagram of a second fixed caliper seat;

[0028] Figure 9 It is a schematic front sectional view structure diagram of a first fixed caliper seat;

[0029] Figure 10 It is a schematic front sectional view when the expander is laid on the novel expander resistance test simulation device.

[0030] Legend:

[0031] 10. Expander; 20. Support rail; 21. Square steel base; 22. Rail; 30. Wooden switch sleeper assembly; 31. Wooden switch sleeper; 32. First fixed caliper seat; 321. First fixed caliper; 3211. Mounting plate; 3212. Mounting support; 3213. First driving screw; 3214. Clamping block; 322. Mounting block; 40. Expansion force measuring device; 41. Mounting frame; 42. Second fixed caliper seat; 421. Second fixed caliper; 422. Mounting seat; 43. Expansion force measurer. Specific embodiments

[0032] The following will describe the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention can be implemented in many different ways defined and covered by the following.

[0033] Refer to Figure 1 and Figure 10, a preferred embodiment of the present utility model provides a telescopic device resistance test simulation device, which is used to simulate the actual installation and force-bearing conditions of the telescopic device 10 and test the telescopic resistance of the telescopic device 10. The simulation device includes: a fixedly supported bearing foundation, a plurality of wooden switch sleeper assemblies 30, and two sets of telescopic force measuring devices 40. The plurality of wooden switch sleeper assemblies 30 are used to be arranged at intervals along the length direction of the bearing foundation and slidably supported on the bearing foundation, and each wooden switch sleeper assembly 30 can also be detachably fixed to the bearing foundation to simulate the track structure actually installed with the telescopic device 10 on the bearing foundation. The two sets of telescopic force measuring devices 40 are slidably supported at both ends of the track structure formed by laying the plurality of wooden switch sleeper assemblies 30, and each telescopic force measuring device 40 can also be detachably fixed to the bearing foundation. The two sets of telescopic force measuring devices 40 are used to respectively abut against the telescopic device 10 installed in the track structure after extending outward to simulate the force-bearing conditions when the telescopic device 10 is actually installed.

[0034] The specific installation operation steps of the telescopic device resistance test simulation device of the present utility model are as follows: First, plan the laying site according to the full length of the telescopic device 10, assemble the overall bearing foundation and fix it to the ground; then assemble the wooden switch sleeper assemblies 30 and the telescopic force measuring devices 40 respectively; then, according to the actual installation drawing of the telescopic device 10, place the wooden switch sleeper assemblies 30 on the bearing foundation in sequence, and reserve a certain space at both ends of the bearing foundation for installing the telescopic force measuring devices 40. After the wooden switch sleeper assemblies 30 are placed in place, fix them to the bearing foundation respectively; then place the two sets of telescopic force measuring devices 40 at both ends of the bearing foundation respectively. After adjusting the distance between them and the telescopic device 10, fix each telescopic force measuring device 40 to the bearing foundation respectively; after all the assemblies are completed, the telescopic device 10 can be installed on the track structure formed by laying the plurality of wooden switch sleeper assemblies 30, and finally drive the telescopic force measuring devices 40 to extend and abut against the telescopic device 10 to conduct the telescopic resistance test.

[0035] The utility model relates to a telescopic resistance test simulation device for laying wooden switch ties, which is applicable to the telescopic resistance test of a telescopic device 10 for laying wooden switch ties. First, a bearing foundation fixed to the ground is laid to ensure the overall bearing stability of the device; then, multiple wooden switch tie assemblies 30 are respectively fixed to the bearing foundation. By using the detachable connection between the wooden switch tie assemblies 30 and the bearing foundation, the spacing of the laid wooden switch tie assemblies 30 is adjusted to accurately, precisely and conveniently simulate the actual on-site installation state of the telescopic device 10; finally, through the detachable fixation of the telescopic force measuring device 40 to the bearing foundation, the telescopic force measuring device 40 is fixed at a suitable position on the bearing foundation, and finally the telescopic force measuring device 40 is started to conduct the telescopic resistance test of the telescopic device. The device of the utility model simulates the on-site installation and stress scenarios of the telescopic device 10, is used for simulating and testing the telescopic state of the telescopic device 10, and the wooden switch tie assemblies 30 and the telescopic force measuring device 40 are respectively detachably fixed to the bearing foundation. Therefore, not only is there no need to manufacture special tooling, the manufacturing cost and processing difficulty can be effectively reduced, but also the wooden switch tie assemblies 30 can be adjusted on the bearing foundation, which is convenient, flexible and has little limitation. At the same time, the assembled simulation device is detachable and can be disassembled into parts after the test, which is convenient for storage and placement.

[0036] Optionally, as Figure 1 shown, the bearing foundation includes multiple support rails 20 arranged parallel to each other at intervals, and each support rail 20 is detachably fixed to the ground respectively. Multiple wooden switch tie assemblies 30 are used to be arranged at intervals and slidably supported on multiple support rails 20 in sequence along the length direction of the support rails 20, and each wooden switch tie assembly 30 can be detachably fixed to multiple supported support rails 20 simultaneously under the action of an external force. Two groups of telescopic force measuring devices 40 are respectively slidably supported on two groups of multiple support rails 20, and each telescopic force measuring device 40 can be detachably fixed to multiple supported support rails 20 simultaneously under the action of an external force. In this optional solution, the bearing foundation includes two support rails 20 arranged parallel to each other at intervals, and the overall structure of the bearing foundation is simple and easy to set up.

[0037] In this optional solution, as Figure 6 and Figure 7 shown, each support rail 20 includes a square steel base 21 extending along its length direction, and a steel rail 22 fixed to the top of the square steel base 21 along the length direction of the square steel base 21. The square steel base 21 is detachably fixed to the ground through expansion bolts, so as to facilitate the disassembly and recycling of the support rail 20 after the test, reduce the test cost, and be convenient for storage and placement.

[0038] Optionally, as Figure 1 and Figures 4 - 5As shown in the figure, the wooden switch sleeper assembly 30 includes a strip-shaped wooden switch sleeper 31 and multiple groups of first fixed caliper seats 32 provided corresponding to multiple support rails 20. The multiple groups of first fixed caliper seats 32 are slidably supported on the multiple support rails 20 one by one, and each first fixed caliper seat 32 is used to clamp the corresponding support rail 20 under the action of an external force. The wooden switch sleeper 31 is simultaneously supported within the multiple groups of first fixed caliper seats 32.

[0039] In this alternative solution, as Figure 4 shown, the first fixed caliper seat 32 includes a first fixed caliper 321 and a mounting block 322 fixed to the top of the first fixed caliper 321. The first fixed caliper 321 is slidably supported on the corresponding support rail 20 and can relatively clamp the support rail 20 from both sides of the support rail 20 under the action of an external force. The top of the mounting block 322 is recessed to form a mounting groove for accommodating the wooden switch sleeper 31, and the wooden switch sleeper 31 is simultaneously accommodated in the multiple mounting grooves of the multiple groups of first fixed caliper seats 32. In this alternative solution, as Figure 1 shown, since the installation direction of the wooden switch sleeper assembly 30 has an angle with the force direction after the expansion joint 10 is installed, the wooden switch sleeper 31 can be directly placed in the mounting block 322 without being fixed to the mounting block 322, which is convenient for the disassembly and recycling of the wooden switch sleeper assembly 30 after the test and effectively reduces the test cost.

[0040] In a specific embodiment of this alternative solution, as Figure 9 shown, the first fixed caliper 321 includes a mounting plate 3211, two groups of mounting supports 3212 that are spaced apart and vertically connected to the lower surface of the mounting plate 3211, a first driving screw 3213 threadedly passing through the two groups of mounting supports 3212, and two clamping blocks 3214 for relatively clamping the support rail 20. External threads with opposite helix directions are respectively machined on the outer circles at both ends of the first driving screw 3213. The two clamping blocks 3214 are respectively installed on the outer circles at both ends of the first driving screw 3213, and the two clamping blocks 3214 are also located between the two groups of mounting supports 3212 so that the two clamping blocks 3214 approach or move away from each other during the rotation of the first driving screw 3213. In a specific embodiment of this alternative solution, the mounting plate 3211 is used for fixed connection with the mounting block 322. During operation, the first driving screw 3213 is rotated, and the first driving screw 3213 drives the two clamping blocks 3214 to approach each other to clamp the rail 22 or move away from each other to loosen the rail 22 through the external threads at both ends thereof; in this specific embodiment, through the setting of the first fixed caliper 321, the wooden switch sleeper assembly 30 is convenient for installation and disassembly with the bearing foundation, and the overall structure of the wooden switch sleeper assembly 30 is simple and the manufacturing cost is low.

[0041] Optionally, as Figures 1 - 3As shown in the figure, the telescopic force measuring device 40 includes a mounting frame 41, multiple groups of second fixed caliper seats 42, and multiple groups of telescopic force measuring devices 43. The multiple groups of second fixed caliper seats 42 are slidably supported on multiple support rails 20 one by one, and each second fixed caliper seat 42 is used to clamp the corresponding support rail 20 under the action of an external force. The mounting frame 41 is fixedly connected to the tops of the multiple groups of second fixed caliper seats 42 at the same time. The multiple groups of telescopic force measuring devices 43 are sequentially connected to the mounting frame 41 at intervals along the transverse direction of the mounting frame 41.

[0042] In this alternative solution, as Figure 2 shown, the second fixed caliper seat 42 includes a second fixed caliper 421 and a mounting seat 422 fixed to the top of the second fixed caliper 421. The second fixed caliper 421 is slidably supported on the corresponding support rail 20, and can relatively clamp the support rail 20 from both sides of the support rail 20 under the action of an external force. The mounting frame 41 is supported on the mounting seat 422 and is fixed to the mounting seat 422 through bolts passing through both of them, or is fixedly welded to the mounting seat 422.

[0043] In a specific embodiment of this alternative solution, as Figure 8 shown, the second fixed caliper 421 includes a mounting plate, two groups of mounting supports arranged at intervals and vertically connected to the lower surface of the mounting plate, a second driving screw threadedly passing through the two groups of mounting supports, and two clamping blocks for relatively clamping the support rail 20. External threads with opposite helix directions are respectively machined on the outer circles at both ends of the second driving screw. The two clamping blocks are respectively installed on the outer circles at both ends of the second driving screw, and the two clamping blocks are also located between the two groups of mounting supports, so that the two clamping blocks approach or move away from each other during the rotation of the second driving screw. In a specific embodiment of this alternative solution, the mounting plate is used to be fixedly connected to the mounting seat 422. During operation, the second driving screw is rotated, and the second driving screw drives the two clamping blocks to approach each other to clamp the rail 22 or move away from each other to loosen the rail 22 through the external threads at both ends thereof; in this specific embodiment, through the setting of the second fixed caliper 421, the telescopic force measuring device 40 is convenient for installation and disassembly with the bearing foundation, and the overall structure of the telescopic force measuring device 40 is simple and the manufacturing cost is low.

[0044] In this alternative solution, as Figure 1 shown, each group of telescopic force measuring devices 40 includes two telescopic force measuring devices 43. The two telescopic force measuring devices 43 are correspondingly arranged on the mounting frame 41, and the fixed end of each telescopic force measuring device 43 is fixed to the mounting frame 41, and its telescopic end faces the track structure.

[0045] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A telescopic resistance test simulation device, characterized in that: The simulation device is used to simulate the actual installation and stress conditions of the telescopic device (10) and to test the telescopic resistance of the telescopic device (10). The simulation device includes: A fixed bearing foundation, a plurality of wooden turnout sleeper assemblies (30), and two sets of telescopic force measuring devices (40); A plurality of wooden switch sleeper assemblies (30) are used to be sequentially spaced and slidably supported on the bearing base along the length direction of the bearing base, and each wooden switch sleeper assembly (30) can also be detachably fixed to the bearing base to simulate a track structure on which the expansion joint (10) is actually installed on the bearing base; Two sets of telescopic force measuring devices (40) are slidably supported at both ends of a track structure formed by laying a plurality of wooden switch sleeper assemblies (30), and each telescopic force measuring device (40) can be detachably fixed to a bearing base. The two sets of telescopic force measuring devices (40) are used to respectively push against the telescopes (10) installed in the track structure after being extended outward, so as to simulate the force condition of the telescopes (10) when actually installed.

2. The expansion joint resistance test simulation device according to claim 1, characterized in that: The bearing foundation comprises a plurality of support rails (20) which are parallel to each other and arranged at intervals, and each support rail (20) is detachably fixed to the ground. A plurality of wooden switch sleeper assemblies (30) are used to be sequentially spaced and slidably supported on the plurality of support rails (20) along the length direction of the support rails (20), and each wooden switch sleeper assembly (30) can be detachably fixed to the plurality of support rails (20) at the same time under the action of external force; The two groups of telescopic force measuring devices (40) are respectively slidably supported on two groups of a plurality of supporting rails (20), and each telescopic force measuring device (40) can be detachably fixed to the plurality of supporting rails (20) at the same time under the action of external force.

3. The expansion joint resistance test simulation device according to claim 2, characterized in that: Each supporting rail (20) comprises a square steel base (21) extending along its length direction, and a steel rail (22) fixed to the top of the square steel base (21) along the length direction of the square steel base (21); The square steel base (21) is detachably fixed to the ground via expansion bolts.

4. The expansion joint resistance test simulation device according to claim 2, characterized in that: The wooden switch sleeper assembly (30) comprises a strip-shaped wooden switch sleeper (31) and a plurality of groups of first fixed clamp seats (32) arranged corresponding to a plurality of support rails (20); A plurality of groups of first fixed caliper seats (32) are slidably supported on a plurality of support rails (20) in a one-to-one correspondence, and each first fixed caliper seat (32) is used to clamp the corresponding support rail (20) under the action of an external force; The wooden fork sleeper (31) is supported in a plurality of first fixed caliper seats (32) at the same time.

5. The expansion joint resistance test simulation device according to claim 4, characterized in that: The first fixed caliper seat (32) comprises a first fixed caliper (321) and a mounting block (322) fixed to the top of the first fixed caliper (321); The first fixed clamp (321) is slidably supported on the corresponding support rail (20), and can clamp the support rail (20) relatively from both sides of the support rail (20) under the action of external force; The top of the mounting block (322) is concave to form a mounting groove for accommodating the wooden fork sleeper (31), and the wooden fork sleeper (31) is simultaneously accommodated in a plurality of mounting grooves of a plurality of groups of first fixed caliper seats (32).

6. The expansion joint resistance test simulation device according to claim 5, characterized in that: The first fixed clamp (321) comprises a mounting plate (3211), two groups of mounting supports (3212) spaced apart and vertically connected to the lower surface of the mounting plate (3211), a first driving screw (3213) threadedly inserted into the two groups of mounting supports (3212), and two clamping blocks (3214) for relatively clamping the support rail (20); External threads with opposite rotation directions are respectively processed on the outer circles of the two ends of the first driving screw (3213); The two clamping blocks (3214) are respectively mounted on the outer circles at both ends of the first driving screw (3213), and the two clamping blocks (3214) are also located between the two sets of mounting supports (3212), so that the two clamping blocks (3214) are relatively close to or away from each other during the rotation of the first driving screw (3213).

7. The expansion joint resistance test simulation device according to claim 2, characterized in that: The telescopic force measuring device (40) comprises a mounting frame (41), a plurality of sets of second fixed caliper seats (42) and a plurality of sets of telescopic force measuring devices (43); A plurality of sets of second fixed caliper seats (42) are slidably supported on a plurality of support rails (20) in a one-to-one correspondence, and each second fixed caliper seat (42) is used to clamp the corresponding support rail (20) under the action of an external force; The mounting frame (41) is simultaneously fixedly connected to the top of a plurality of sets of second fixed caliper seats (42); A plurality of groups of telescopic force measuring devices (43) are sequentially connected to the mounting frame (41) at intervals in the transverse direction of the mounting frame (41).

8. The expansion joint resistance test simulation device according to claim 7, characterized in that: The second fixed caliper seat (42) comprises a second fixed caliper (421) and a mounting seat (422) fixed to the top of the second fixed caliper (421); The second fixed clamp (421) is slidably supported on the corresponding support rail (20), and can clamp the support rail (20) relatively from both sides of the support rail (20) under the action of external force; The mounting frame (41) is supported on the mounting seat (422) and is fixed to the mounting seat (422) by bolts passing through both, or is fixed to the mounting seat (422) by welding.

9. The expansion joint resistance test simulation device according to claim 8, characterized in that: The second fixed caliper (421) comprises a mounting plate, two groups of mounting supports arranged at intervals and vertically connected to the lower surface of the mounting plate, a second driving screw threadedly inserted into the two groups of mounting supports, and two clamping blocks for relatively clamping the support rail (20); The outer circles of the two ends of the second driving screw are respectively processed with external threads of opposite rotation directions; The two clamping blocks are respectively mounted on the outer circles of the two ends of the second driving screw rod, and the two clamping blocks are also located between the two groups of mounting supports, so that the two clamping blocks are relatively close to or away from each other during the rotation of the second driving screw rod.

10. The expansion joint resistance test simulation device according to claim 7, characterized in that: Each set of telescopic force measuring devices (40) comprises two sets of telescopic force measuring devices (43), which are correspondingly arranged on the mounting frame (41), and the fixed end of each telescopic force measuring device (43) is fixed to the mounting frame (41), and the telescopic end faces the track structure.

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