Railway locomotive axle box spring compression and rescue coupling device

Abstract

The utility model relates to a railway locomotive axle box spring compression and rescue coupling device, and belongs to the technical field of railway internal combustion locomotive overhauling tool equipment in the metallurgical industry. According to the technical scheme, the coupling device comprises two identical hanging bodies (1), each hanging body (1) is in a long strip shape formed by machining a steel plate with a certain thickness, a pin hole (2) is formed in one end of each hanging body (1), a row of helical teeth (3) are arranged in the length direction of each hanging body (1), the helical teeth (3) in the length direction of the two hanging bodies (1) are meshed together, and the two hanging bodies (1) are connected through a spiral spring (4). The helical teeth (3) in the length direction of the hanging body (1) are inclined towards one end of the pin hole (2); the two spiral springs (4) between the two hanging bodies (1) are symmetrically arranged on the front face and the back face of the hanging bodies (1). The utility model has the beneficial effects of being convenient for accident rescue after the railway locomotive is off-line, shortening the rescue time, avoiding the accident expansion and reducing the loss.

Description

Technical Field

[0001] The utility model relates to a railway locomotive axle box spring compression and rescue coupling device, belonging to the technical field of railway diesel locomotive maintenance tools and equipment in the metallurgical industry. Background Art

[0002] The primary function of a diesel locomotive axlebox spring assembly is to bear weight, absorb shock, and buffer the impact of track irregularities on the locomotive's axlebox bearings and other components, protecting locomotive components from damage. Each spring assembly consists of two inner and outer springs with opposite rotations. For example, the spring assembly requirements for the Dongfeng 4D tuning system are a load of 50.03 kN, a free height of 382 mm, a working height of 277.6 mm, and a static deflection of 104.4 mm. During bogie maintenance or vehicle lifting operations, the spring assembly must be compressed and positioned in advance to prevent the spring assembly from reaching the release height of 104.4 mm. This primarily reduces the total travel of the vehicle body. Furthermore, by preventing the vehicle body weight from being transferred to the bogie, stress on the axlebox tie rods, damage to the vertical hydraulic shock absorber or other components, and inability to propel the bogie due to tension between the universal joint and the bogie. Especially in the hydraulic lifting operation during the locomotive derailment rescue, the higher the car body is lifted, the greater the danger and the longer it takes, which increases the difficulty of locomotive derailment recovery. In order to solve this problem, it is necessary to design a railway locomotive axle box spring compression and rescue coupling device to improve the rescue efficiency. Utility Model Content

[0003] The purpose of the utility model is to provide a railway locomotive axle box spring compression and rescue coupling device, which can facilitate accident rescue after the railway locomotive is derailed, shorten the rescue time, avoid the expansion of the accident, reduce losses, and solve the problems existing in the background technology.

[0004] The technical solution of the utility model is:

[0005] A railway locomotive axle box spring compression and rescue coupling device comprises two identical hooks, each of which is made of a steel plate of a certain thickness and is formed into a long strip. A pin hole is provided at one end of the hook, and a row of oblique teeth is provided along the length of the hook. The oblique teeth along the length of the two hooks are meshed together, and the two hooks are connected by a coil spring.

[0006] The oblique teeth in the length direction of the hanging body are inclined toward one end of the pin hole.

[0007] The inclination angle of the oblique teeth in the length direction of the hanging body is 45 degrees.

[0008] The width of the oblique teeth in the length direction of the hanging body is the same as the thickness of the hanging body.

[0009] The coil springs between the two hanging bodies are symmetrically arranged on the front and back sides of the hanging bodies.

[0010] A hanging pin that cooperates with the helical spring is provided on the hanging body.

[0011] The beneficial effects of the present utility model are as follows: After a derailment accident of a railway locomotive, by using this coupler device to replace the vertical oil shock absorber and cooperating with a jack, the compression state of the axle box spring can be effectively adjusted and fixed, so as to meet the precise control requirements for the compression degree of the axle box spring under different working conditions, shorten the rescue time, avoid the expansion of the accident, reduce losses, enhance the flexibility and safety of operation, and has a simple structure and convenient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the hanging body of the present utility model;

[0013] Figure 2 It is a schematic structural diagram of the present utility model;

[0014] Figure 3 It is a front view of the use state of the present utility model;

[0015] Figure 4 is Figure 3 a side view of;

[0016] In the figure: hanging body 1, pin hole 2, helical teeth 3, helical spring 4, hanging pin 5, axle box spring 6, coupler device 7, shock absorber lower through-pin support 8, shock absorber through-pin 9, shock absorber upper support 10, bogie frame body 11, axle box cover 12, axle box spring lower seat 13, axle box spring upper seat 14, axle box body 15. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The following further illustrates the present utility model through examples in conjunction with the accompanying drawings.

[0018] Referring to the attached Figures 1-4 , a railway locomotive axle box spring compression and rescue coupler device, the coupler device includes two identical hanging bodies 1. The hanging body 1 is a long strip processed from a steel plate with a certain thickness. One end of the hanging body 1 is provided with a pin hole 2, and a row of helical teeth 3 is provided on the hanging body 1. The helical teeth 3 of the two hanging bodies 1 are meshed together, and the two hanging bodies 1 are connected by a helical spring 4.

[0019] In this embodiment, referring to the attached Figure 1 , 2 , the railway locomotive axle box spring compression and rescue coupler device includes two identical hanging bodies 1. The two hanging bodies 1 are used in a set, and the two hanging bodies 1 are connected by a helical spring 4.

[0020] Referring to the attached Figure 1 , 2, the hanging body 1 is processed into a key shape from thick steel plate with excellent material strength. The hanging body 1 is processed with pin holes 2, a row of helical teeth 3 and hanging pins 5, where:

[0021] The helical teeth 3 are at a 45-degree angle, and two are a set that fit each other. The length adjustment and self-locking functions can be achieved by adjusting the number of engaged teeth;

[0022] The hanging pins 5 are fixed on the hanging body 1 by drilling and tapping threads, and are mainly used to fix both ends of the helical spring 4. There are two hanging pins 5 on each hanging body 1.

[0023] There is one helical spring 4 on the front and back of each set of coupling devices, and its main function is to ensure that the two hanging bodies 1 are always in a fitting state after combination.

[0024] The diameter of the pin hole 2 is adapted to the diameter of the through-pin of the vertical hydraulic shock absorber 7 on the locomotive.

[0025] Refer to the appendix Figure 3 , 4 , the usage method of the present utility model is as follows:

[0026] Two lower seats 13 of the axle box springs 6 are processed on the axle box body 15, and a shock absorber lower through-pin support 8 is welded on the axle box cover 12 of the axle. Two upper seats 14 of the axle box springs and a shock absorber upper support 10 are welded on the bogie frame body 11, jointly forming a shock absorption and buffering effect that the self-weight of the car body is transmitted downward through the axle box springs 6 to the wheels.

[0027] The coupling device 7 is used to replace the vertical hydraulic shock absorber and is installed between the shock absorber upper support 10 and the shock absorber lower through-pin support 8. The shock absorber upper support 10 is welded on the bogie frame body 11, and the shock absorber lower through-pin support 8 is welded on the axle box cover 12 of the axle. Then, in cooperation with a jack, the purpose of adjusting and compressing the axle box spring 6 can be achieved.

[0028] First, remove the vertical hydraulic shock absorber at the axle box that needs to be repaired or rescued. Then, use the upper and lower pin shafts 9 of the vertical shock absorber to install the coupling device 7 on the vertical hydraulic shock absorber mounting seat 8. When it is necessary to compress the axle box spring 6, use a jack to lift the axle head to compress the axle box spring 6, so that the helical teeth 3 of the coupling device overlap more. After the axle box spring 6 is compressed, release the jack, and the coupling device 7 realizes self-locking. After the repair and rescue are completed, if the self-weight of the locomotive can compress the axle box spring 6, then remove the coupling device 7. If not, it is necessary to use a jack to compress the axle box spring 6 again and then remove the coupling device 7, and restore the installation of the vertical hydraulic shock absorber.

[0029] An embodiment of the present utility model is as follows:

[0030] The hanging body 1 is 353 mm long, 80 mm wide, and 50 mm thick;

[0031] The diameter of the pin hole 2 is 32 mm;

[0032] The helical tooth 3 has a 45-degree bevel angle. The tooth width is the same as the thickness of the hanging body 1, which is 50 mm. The tooth height is 15 mm and the tooth depth is 15 mm;

[0033] The natural length of the helical spring 4 is 60 mm,

[0034] The hanging pin 5 has a diameter of 5 mm, a cap diameter of 10 mm, and a height of 8 mm.

Claims

1. A railway locomotive axle box spring compression and rescue coupling device, characterized in that: The coupler device includes two identical hanging bodies (1). The hanging body (1) is a strip-shaped body processed from a steel plate with a certain thickness. One end of the hanging body (1) is provided with a pin hole (2), and a row of helical teeth (3) is arranged in the length direction of the hanging body (1). The helical teeth (3) in the length direction of the two hanging bodies (1) are engaged with each other, and the two hanging bodies (1) are connected by a helical spring (4).

2. The railway locomotive axle box spring compression and rescue coupling device according to claim 1, characterized in that: The helical teeth (3) in the length direction of the hanging body (1) are inclined towards the end with the pin hole (2).

3. The railway locomotive axle box spring compression and rescue coupling device according to claim 2, characterized in that: The inclination angle of the helical teeth (3) in the length direction of the hanging body (1) is 45 degrees.

4. A railway locomotive axle box spring compression and rescue coupling device according to claim 3, characterized in that: The tooth width of the helical teeth (3) in the length direction of the hanging body (1) is the same as the thickness of the hanging body (1).

5. A railway locomotive axle box spring compression and rescue coupling device according to claim 1, characterized in that: The helical springs (4) between the two hanging bodies (1) are two symmetrically arranged on the front and back sides of the hanging body (1).

6. The railway locomotive axle box spring compression and rescue coupling device according to claim 5, characterized in that: The hanging body (1) is provided with a hanging pin (5) that cooperates with the helical spring (4).

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