Track bed testing tool

Abstract

The utility model relates to the technical field of ballast bed testing, and discloses a track ballast bed testing tool which comprises a connecting plate set connected with a steel rail and force loading devices arranged on the two sides of the steel rail and used for driving the connecting plate set to move upwards. The connecting plate group comprises two force bearing plates and a connecting piece for connecting the two force bearing plates together; each force bearing plate comprises a hooking part used for being hooked on a steel rail and a stress part used for abutting against a force loading device, and after the force bearing plates are hooked on the steel rail through the hooking parts, the two force bearing plates are connected together through the connecting piece. According to the device, the force bearing plate can be conveniently stored.

Description

Technical Field

[0001] The present application relates to the technical field of track detection, and in particular to a track bed testing tool. Background Art

[0002] The track support stiffness test is an important test in railway engineering. It is of great significance to evaluate the status of the railway track and ensure the safety and stability of the line. The main purpose of the track support stiffness test is to measure the support capacity of the track when the track is subjected to vertical load, that is, the relationship between the vertical deformation of the track and the applied load.

[0003] Traditional equipment for testing the support stiffness of the ballast bed under the rails needs to be used for testing on both sides of the sleepers under the rails. During the test, the ballast bed on both sides of the sleepers needs to be dug up. The test method is relatively complicated, the test cycle is long, and the original state of the ballast bed is destroyed. The test results are somewhat different from the actual conditions, and are not suitable for testing the ballast bed state of newly built ordinary railways and high-speed railway ballasted tracks.

[0004] In order to solve the above technical problems, a Chinese patent document with application number 200910078471.3 discloses a railway ballasted track sleeper support stiffness test device, which includes a force frame, two jacks, two force sensors, and two electronic displacement meters. After the force frame clamps the rail, the jack drives the force frame to move upward, thereby driving the rail to move, and the vertical displacement of the rail is recorded by the displacement meter.

[0005] In this technical solution, a clamping arm with a scissor-like structure is installed under the force-adding frame, so that the force-adding frame has an integral slat-like structure with a certain length. The storage box needs a corresponding accommodating length, which takes up more space and there is room for improvement. Utility Model Content

[0006] In order to overcome the above-mentioned technical problems, the present application provides a track bed testing tool.

[0007] This application provides the following technical solutions:

[0008] A track bed testing tool comprises a connecting plate group connected to a steel rail and a force loading device arranged on both sides of the steel rail for driving the connecting plate group to move upward; the connecting plate group comprises two load-bearing plates and a connecting piece connecting the two load-bearing plates together; the load-bearing plate comprises a hooking portion for hooking on the steel rail and a force-bearing portion for contacting with the force loading device, and after the load-bearing plate is hooked on the steel rail by the hooking portion, the connecting piece connects the two load-bearing plates together.

[0009] By adopting the above technical solution, the connecting plate includes two bearing plates. After the bearing plates are hooked on the rails by the hooking parts, the two bearing plates are connected together by the connecting pieces, and then the bearing plates can be driven to move upward by the force loading device, thereby synchronously driving the rails to move upward, so as to measure the vertical displacement of the rails. The connecting plate is composed of two bearing plates, so that the bearing plates can be stored more conveniently.

[0010] Optionally, the connecting member includes a latch, and a side wall of the hooking portion is provided with a through hole. When the hooking portions are hooked on the rails, the latch can be simultaneously passed through the through hole.

[0011] By adopting the above technical solution, after the load-bearing plate is hooked on the rail by the hooking part, the pin is synchronously passed through the two load-bearing plates, thereby connecting the two load-bearing plates together, so that the load-bearing plates are not easily offset during the pressure test.

[0012] Optionally, the connecting member further includes a covering plate, the covering plate is provided with a receiving cavity, the two hooking portions can be received in the receiving cavity, and the latch is simultaneously passed through the covering plate.

[0013] By adopting the above technical solution, the hooking portion abuts against the accommodating cavity, and the latch passes through the covering plate and the hooking portion at the same time, thereby further improving the stability of the two hooking portions being connected together.

[0014] Optionally, a plurality of latches are provided.

[0015] By adopting the above technical solution, a plurality of latches are provided, thereby further improving the stability of the hooking parts connected together.

[0016] Optionally, a resistance rod is provided on the force-bearing part, and a socket is provided on the side wall of the hooking part away from the force-bearing part. After the hooking part is hooked on the rail, the resistance rod can be tightly pressed against the socket on the adjacent hooking part.

[0017] By adopting the above technical solution, after the hooking part is connected to the rail, the abutment rod is tightly pressed against the insertion hole of the adjacent hooking part, thereby further improving the stability of the two bearing plates after being connected together.

[0018] Optionally, a threaded barrel is provided on the force-bearing portion, and a butt joint for the force-loading device to butt against is threadedly connected in the threaded barrel.

[0019] By adopting the above technical solution, the force loading device abuts against the lower end of the abutment joint, thereby driving the load-bearing plate to move upward. The abutment joint is threadedly connected to the threaded barrel, so that the vertical position of the abutment joint can be adjusted to adapt to the force loading device.

[0020] Optionally, an abutment groove is provided at the lower end of the abutment head.

[0021] By adopting the above technical solution, the connection stability between the abutment head and the force loading device is improved.

[0022] Optionally, a side wall of the threaded barrel is threadedly connected with a resistance ring, and the resistance ring can abut against the end surface of the threaded barrel.

[0023] By adopting the above technical solution, the abutment ring can abut against the lower end surface of the threaded barrel, thereby further improving the stability of the abutment head.

[0024] In summary, the present application includes at least one of the following beneficial effects:

[0025] 1. In the present application, the connecting plate is composed of two load-bearing plates, so that the two load-bearing plates can be better accommodated. After the load-bearing plates are connected to the rails through the hooking parts, they are connected together through connecting parts, so that the load-bearing plates can cooperate with the force loading device to test the supporting stiffness. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the test of the embodiment of the present application;

[0027] Figure 2 It is a schematic diagram of the structure of an embodiment of the present application;

[0028] Figure 3 It is a schematic diagram of an explosion of an embodiment of the present application.

[0029] Explanation of the reference numerals: 1. Rail; 2. Force loading device; 3. Connecting plate assembly; 31. Load-bearing plate; 32. Connecting piece; 321. Latch; 322. Covering plate; 4. Hooking portion; 5. Force-bearing portion; 6. Accommodating chamber; 7. Resistance rod; 8. Insertion hole; 9. Threaded cylinder; 10. Resistance joint; 11. Resistance groove; 12. Resistance ring; 13. Through hole. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-3 This application is described in further detail.

[0031] The present application embodiment discloses a track bed test tool. Figure 1 The track bed test fixture includes a connecting plate group 3 connected to the rail 1 and a force loading device 2 matched with both ends of the connecting plate group 3. After the fasteners of the rail 1 and the sleeper of the test section are loosened and the connecting plate group 3 and the rail 1 are connected, the force loading device 2 is respectively located on both sides of the rail 1 and placed on the upper surface of the sleeper, and the force loading device 2 provides a force for the connecting plate group 3 to move upward, thereby driving the rail 1 to move upward, and the displacement of the rail 1 moving upward is monitored by a displacement tester and other devices.

[0032] Reference Figure 1 and Figure 2 The connecting plate group 3 includes two load-bearing plates 31 and a connecting piece 32 connecting the two load-bearing plates 31 together. One end of the load-bearing plate 31 is a hooking portion 4, and the other end is a force-bearing portion 5. The load-bearing plate 31 is an iron plate or a steel plate, and the hooking portion 4 and the force-bearing portion 5 are integrally formed, so that the load-bearing plate 31 is not prone to bending during the test. The hooking portion 4 is bent, and the rail 1 generally has an I-shaped structure. The hooking portion 4 can be hooked on the upper end of the rail 1. After the two hooking portions 4 are hooked on the rail 1 and abutted against each other, the two load-bearing plates 31 are connected together by the connecting piece 32, so that subsequent testing can be carried out.

[0033] In a further embodiment, the connecting member 32 includes a latch 321, and a through hole 13 is provided on the hooking portion 4. When the hooking portions 4 are hooked on the rail 1, the through holes 13 on the two hooking portions 4 can be aligned. The latch 321 can pass through the two hooking portions 4 at the same time through the through hole 13, thereby connecting the two bearing plates 31 together. Further, in order to improve the stability of the connection between the two hooking portions 4, a plurality of latches 321 can be provided, and the number of through holes 13 and latches 321 matches. In this embodiment, two latches 321 are provided.

[0034] In a further embodiment, the connector 32 further includes a cover plate 322, and a receiving cavity 6 is formed on the cover plate 322. After the two hooking portions 4 are abutted against each other, the cover plate 322 can be buckled on the two hooking portions 4, and the opposite sides of the hooking portions 4 can abut against the inner wall of the receiving cavity 6, so that the hooking portions 4 are not easily separated. The latch 321 passes through the cover plate 322 and the hooking portion 4 at the same time, so as to connect the cover plate 322 and the hooking portion 4 together, thereby improving the stability of the load-bearing plate 31 being connected together.

[0035] Further, see Figure 2 and Figure 3 In order to improve the stability of the hooking parts 4, a resisting rod 7 is threadedly connected to the force-bearing part 5, and a plug hole 8 is provided on the side of the hooking part 4 away from the force-bearing part 5. When the resisting rod 7 is rotated, the end of the resisting rod 7 can be tightly pressed against the plug hole 8 on the adjacent hooking part 4, so that the force-bearing part 5 and the adjacent hooking part 4 can be more stable and are not easy to deflect during the pressure test.

[0036] In a further embodiment, a threaded barrel 9 is fixed to the lower surface of the force-bearing part 5, and a butt joint 10 is threadedly connected in the threaded barrel 9. In this embodiment, the force loading device 2 can be a device such as an oil cylinder and a puller. The upper end of the piston rod of the force loading device 2 is fixed with a force sensor and then abuts against the lower end of the butt joint 10. The two force loading devices 2 simultaneously drive the butt joint 10 to move upward, thereby lifting the rail 1.

[0037] In order to improve the abutment effect of the abutment head 10 of the force loading device 2, an abutment groove 11 is provided at the lower end of the abutment head 10. Abutment ring 12 is threadedly connected to the side wall of the abutment head 10. After the position of the abutment head 10 is adjusted, the position of the abutment ring 12 is adjusted so that it can abut against the lower end surface of the threaded barrel 9, thereby improving the stability of the abutment head 10.

[0038] The implementation principle of a track bed testing tool in an embodiment of the present application is: after two load-bearing plates 31 are hooked on the rail 1, the two load-bearing plates 31 are connected together through a connecting piece 32, and then the test can be carried out through a force loading device 2.

[0039] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A track bed test tool, characterized in that: The invention comprises a connecting plate group (3) connected to a steel rail (1) and a force loading device (2) arranged on both sides of the steel rail (1) for driving the connecting plate group (3) to move upward; the connecting plate group (3) comprises two load-bearing plates (31) and a connecting piece (32) connecting the two load-bearing plates (31) together; the load-bearing plate (31) comprises a hooking portion (4) for hooking onto the steel rail (1) and a force-bearing portion (5) for contacting the force loading device (2); after the load-bearing plate (31) is hooked onto the steel rail (1) by the hooking portion (4), the connecting piece (32) connects the two load-bearing plates (31) together.

2. A track bed testing tool according to claim 1, characterized in that: The connecting member (32) comprises a latch (321), and a through hole (13) is provided on a side wall of the hooking portion (4). When the hooking portion (4) is hooked onto the rail (1), the latch (321) can simultaneously pass through the through hole (13).

3. A track bed testing tool according to claim 2, characterized in that: The connecting member (32) further comprises a covering plate (322), the covering plate (322) being provided with a receiving cavity (6), the two hooking portions (4) being capable of being received in the receiving cavity (6), and the latch (321) simultaneously passing through the covering plate (322).

4. A track bed testing tool according to claim 3, characterized in that: A plurality of latches (321) are provided.

5. A track bed testing tool according to claim 4, characterized in that: The force-bearing portion (5) is provided with a resisting rod (7), and a plug hole (8) is provided on a side wall of the hooking portion (4) away from the force-bearing portion (5). After the hooking portion (4) is hooked on the rail (1), the resisting rod (7) can be tightly pressed against the plug hole (8) on the adjacent hooking portion (4).

6. A track bed testing tool according to any one of claims 1 to 5, characterized in that: The force-bearing portion (5) is provided with a threaded barrel (9), and a butt joint (10) for the force-loading device (2) to butt against is threadedly connected in the threaded barrel (9).

7. The track bed testing tool according to claim 6, characterized in that: The lower end of the abutment head (10) is provided with an abutment groove (11).

8. The track bed testing tool according to claim 6, characterized in that: The side wall of the threaded barrel (9) is threadedly connected with a resistance ring (12), and the resistance ring (12) can be in contact with the end surface of the threaded barrel (9).

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