Track spike tension testing device

Abstract

The utility model relates to the technical field of railway construction devices, in particular to a spike tension testing device. A spike tension testing device comprises an outer cylinder, a sliding rod, a connector and a driving assembly. The connector can be matched with the head of the spike; the connector is fixed to the end of the sliding rod, and the sliding rod is connected into the outer cylinder in a sliding mode. The driving assembly comprises a servo motor, a worm and a worm gear, the servo motor is fixed to the side wall of the outer cylinder, an output shaft of the servo motor extends into the outer cylinder and is fixed to the worm, the worm gear is rotationally connected into the outer cylinder and is meshed with the worm, a plurality of convex teeth are arranged on the sliding rod, and the sliding rod is fixed to the side wall of the outer cylinder. And the convex teeth can be meshed in the tooth grooves of the worm wheel. Compared with manual testing, the spike tension testing device is high in testing efficiency, a worker does not need to twist a wrench by hand, and the labor intensity of the worker is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of railway construction devices, in particular to a spike tension testing device. Background Art

[0002] Railroad spikes are an essential component in rail transit. Their main function is to secure the rails, prevent them from moving and deforming, and ensure the stability and safety of the railway.

[0003] Railroad spikes at turnouts on rails typically require workers to pre-embed a nylon sleeve before driving the threaded spikes into the sleeve from top to bottom. After installation, the spikes are tested to ensure they can withstand the required tensile forces.

[0004] Currently, during testing, the tensile force is converted into a certain torque value, and workers use a torque wrench to perform the test. This testing method is inefficient, and the workers have to operate the torque wrench all the time, which is labor-intensive and not conducive to continuous work. Utility Model Content

[0005] Based on the above situation, the main purpose of the present invention is to provide a railroad spike tension testing device to solve the problem that railroad spike tension testing on railways is usually done manually, with low detection efficiency and high labor intensity for workers.

[0006] In order to achieve the above purpose, the technical solution adopted by the present utility model is as follows:

[0007] A road spike tension testing device comprises an outer cylinder, a sliding rod, a connecting head and a driving assembly;

[0008] The connecting head can be matched with the head of the road spike;

[0009] The connecting head is fixed to the end of the sliding rod, and the sliding rod is slidingly connected to the outer cylinder;

[0010] The drive assembly includes a servo motor, a worm and a worm wheel. The servo motor is fixed to the side wall of the outer cylinder. The output shaft of the servo motor extends into the outer cylinder and is fixed to the worm. The worm wheel is rotatably connected to the outer cylinder. The worm wheel is engaged with the worm. The sliding rod is provided with a plurality of protruding teeth, and the protruding teeth can be engaged with the tooth grooves of the worm wheel.

[0011] Preferably, the sliding rod includes a first connecting rod and a second connecting rod;

[0012] The first connecting rod is inserted into the outer cylinder, the second connecting rod is detachably connected to the first connecting rod, and the second connecting rod is fixed to the connecting head.

[0013] Preferably, the outer cylinder is cylindrical, and the lower end of the outer cylinder is a plane.

[0014] Preferably, the lower end of the outer cylinder is open, and a groove is provided on the side of the outer cylinder, with one end of the groove extending to the bottom of the outer cylinder.

[0015] Preferably, a mounting box is fixed in the outer cylinder, and the worm wheel and the worm are both rotatably connected in the mounting box.

[0016] Preferably, the connector is cylindrical.

[0017] Preferably, a card slot is provided in the connector, the card slot includes a receiving slot and an entry slot, and the entry slot is communicated with the receiving slot;

[0018] The entry groove is located at an end of the connecting head away from the sliding rod, and the accommodating groove can accommodate the head of the spike.

[0019] The beneficial effects of the utility model are as follows: when working, the outer cylinder is fixed between the sleepers, and the connecting head and the spike are clamped, the servo motor can drive the worm to rotate, the worm drives the worm wheel to rotate, and the worm wheel can drive the convex teeth to cooperate and drive the sliding rod to move upward, thereby applying tension to the spike, realizing a tension test on the spike. Compared with manual testing, the test efficiency is high, and workers do not need to manually tighten a wrench, thereby reducing the labor intensity of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The utility model is a structural schematic diagram of a road spike tension testing device.

[0021] Figure 2 The utility model is a cross-sectional schematic diagram showing a clamping slot of a road spike tension testing device.

[0022] Figure 3 This is an enlarged schematic diagram of part A.

[0023] Description of reference numerals:

[0024] 1. Outer cylinder; 11. Groove; 12. Mounting box; 2. Sliding rod; 21. Protruding tooth; 22. First connecting rod; 221. Threaded groove; 23. Second connecting rod; 231. Threaded rod; 3. Connector; 31. Slot; 311. Accommodating slot; 312. Entry slot; 4. Drive assembly; 41. Servo motor; 42. Worm; 43. Worm gear. DETAILED DESCRIPTION

[0025] The present application is further described in detail below in conjunction with all the drawings and specific embodiments.

[0026] Reference Figure 1The utility model provides a rail spike tension test device, which is used to measure whether the tensile strength of rail spikes can meet the requirements. It includes an outer cylinder 1, a sliding rod 2, a connector 3 and a drive assembly 4. The outer cylinder 1 can be stably set in the workplace during work, and the drive assembly 4, the sliding rod 2 and the connector 3 can all be set on the outer cylinder 1. The end of the sliding rod 2 is connected to the connector 3, and the connector 3 can be clamped with the head of the rail spike bolt. The sliding rod 2 can move under force and can pull the connector 3 to generate tension on the rail spike, so as to test whether the tensile strength of the rail spike meets the requirements. The drive assembly 4 is a driving mechanism that drives the sliding rod 2 to move, which can stably drive the sliding rod 2 to generate tension on the bolt, and can cooperate with the external single-chip microcomputer control system to make the sliding rod 2 slide in a quantitative manner and accurately measure the tension of the rail spike.

[0027] Reference Figure 1 and Figure 2 The outer tube 1 is cylindrical, and the lower end surface of the outer tube 1 is a plane, which can be stably set on the plane. The lower end surface of the outer tube 1 is open, and a groove 11 is provided on the side of the outer tube 1. One end of the groove 11 extends to the bottom of the outer tube 1. The groove 11 can facilitate the staff to put the road spike into the outer tube 1 and connect it to the connector 3.

[0028] The connector 3 is cylindrical, minimizing the space it occupies within the outer barrel 1. A slot 31 is provided within the connector 3. The slot 31 includes a receiving slot 311 and an entry slot 312. The entry slot 312 communicates with the receiving slot 311. The receiving slot 311 accommodates the head of a road spike, while the entry slot 312 extends to the lower end of the connector 3. To install a road spike, the spike is pushed along the groove 11 of the outer barrel 1, with the head of the spike positioned in the receiving slot 311 and the screw portion of the spike positioned in the entry slot 312.

[0029] Reference Figure 3 The sliding rod 2 is slidably connected to the outer cylinder 1. During operation, the outer cylinder 1 can be vertically set between the sleepers, and the sliding rod 2 can move up and down in the outer cylinder 1. The driving assembly 4 includes a servo motor 41, a worm 42, and a worm gear 43. The servo motor 41 is fixed to the side wall of the outer cylinder 1. The output shaft of the servo motor 41 extends into the outer cylinder 1 and is fixed to the worm 42. The worm gear 43 is rotatably connected to the outer cylinder 1. The axis of the worm gear 43 is set horizontally. The worm gear 43 meshes with the worm 42. The rotation of the worm 42 can drive the rotation of the worm gear 43.

[0030] A flat groove is provided on the slide bar, on which a plurality of convex teeth 21 are fixed. The plurality of convex teeth 21 are evenly arranged in the vertical direction. The plurality of convex teeth 21 can mesh with the tooth grooves of the worm gear 43. When the worm gear 43 rotates, it can cooperate with the convex teeth 21 to drive the slide bar to move up and down. During operation, the outer cylinder 1 is fixed between the sleepers, and the connector 3 and the spike are clamped. The servo motor 41 can drive the worm 42 to rotate, and the worm 42 drives the worm gear 43 to rotate. The worm gear 43 can drive and cooperate with the convex teeth 21 to drive the slide bar 2 to move upward, thereby applying tension to the spike, thereby realizing a tension test on the spike. Compared with manual testing, the testing efficiency is high, and workers do not need to manually tighten a wrench, thereby reducing the labor intensity of workers. In addition, when in use, the single-chip microcomputer can be used to preset the number of revolutions of the servo motor 41 and adjust the moving distance of the sliding rod 2, thereby presetting the pulling force applied to the spike. It should be noted that the program for the single-chip microcomputer to control the number of revolutions of the servo motor 41 is existing technology, which should be known to those skilled in the art and will not be repeated in this application.

[0031] As an embodiment, the sliding rod 2 includes a first connecting rod 22 and a second connecting rod 23. The first connecting rod 22 is inserted into the outer tube 1, and the second connecting rod 23 is detachably connected to the first connecting rod 22. The second connecting rod 23 is fixed to the connector 3. Specifically, a threaded rod 231 is fixed to the end of the second connecting rod 23. A threaded groove 221 is formed at the end of the first connecting rod 22. The threaded rod 231 can be threadedly connected to the threaded groove 221, so that the first connecting rod 22 and the second connecting rod 23 are threadedly connected. In this way, the second connecting rod 23 and the connector 3 can be disassembled and replaced.

[0032] As an embodiment, a mounting box 12 is fixed in the outer cylinder 1, and the worm gear 43 and the worm 42 are both rotatably connected in the mounting box 12. The output shaft of the servo motor 41 extends into the mounting box 12 and is fixed to the worm 42. During installation, the worm gear 43 and the worm 42 can be installed in the mounting box 12 first, and then the mounting box 12 as a whole can be placed in the outer cylinder 1 for easy assembly.

[0033] The implementation principle of the present invention is as follows: during operation, the outer cylinder 1 is fixed between the sleepers, and the connector 3 is clamped to the spike. The servo motor 41 can drive the worm 42 to rotate, and the worm 42 drives the worm wheel 43 to rotate. The worm wheel 43 can drive the engagement with the convex teeth 21 to drive the sliding rod 2 to move upward, thereby applying tension to the spike, realizing a tension test on the spike. Compared with manual testing, the test efficiency is high, and workers do not need to manually tighten a wrench, thereby reducing the labor intensity of workers.

[0034] 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 road spike tension test device, characterized in that: It comprises an outer cylinder (1), a sliding rod (2), a connecting head (3) and a driving assembly (4); The connecting head (3) can cooperate with the head of the road spike; The connecting head (3) is fixed to the end of the sliding rod (2), and the sliding rod (2) is slidingly connected in the outer cylinder (1); The driving assembly (4) includes a servo motor (41), a worm (42) and a worm wheel (43). The servo motor (41) is fixed to the side wall of the outer cylinder (1). The output shaft of the servo motor (41) extends into the outer cylinder (1) and is fixed to the worm (42). The worm wheel (43) is rotatably connected to the outer cylinder (1). The worm wheel (43) is engaged with the worm (42). The sliding rod (2) is provided with a plurality of protruding teeth (21), and the protruding teeth (21) can be engaged with the tooth grooves of the worm wheel (43).

2. A road spike tensile testing device according to claim 1, characterized in that: The sliding rod (2) comprises a first connecting rod (22) and a second connecting rod (23); The first connecting rod (22) is inserted into the outer cylinder (1), the second connecting rod (23) is detachably connected to the first connecting rod (22), and the second connecting rod (23) is fixed to the connecting head (3).

3. A road spike tensile testing device according to claim 1, characterized in that: The outer cylinder (1) is cylindrical, and the lower end of the outer cylinder (1) is a plane.

4. A road spike tensile testing device according to claim 3, characterized in that: The lower end of the outer cylinder (1) is open, and a groove (11) is provided on the side of the outer cylinder (1), with one end of the groove (11) extending to the bottom of the outer cylinder (1).

5. The road spike tension testing device according to claim 1, characterized in that: A mounting box (12) is fixed in the outer cylinder (1), and the worm wheel (43) and the worm (42) are both rotatably connected in the mounting box (12).

6. The road spike tension testing device according to claim 1, characterized in that: The connecting head (3) is cylindrical.

7. A road spike tensile testing device according to any one of claims 1 to 6, characterized in that: A card slot (31) is provided in the connector (3), the card slot (31) comprising a receiving slot (311) and an entry slot (312), the entry slot (312) being in communication with the receiving slot (311); The entry groove (312) is located at an end of the connecting head (3) away from the sliding rod (2), and the accommodating groove (311) is used to accommodate the head of the road spike.

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