Connecting device of rail car

Abstract

The utility model discloses a connecting device of a rail car, which comprises a car body, a traction pin body is arranged at the bottom of the car body, and a spring washer bottom plate is fixed at the top of the traction pin body. The first heavy spring washer and the second heavy spring washer can be clamped between the first heavy spring washer and the second heavy spring washer, the first heavy spring washer and the second heavy spring washer can be conveniently combined and connected through clamping of the limiting grooves and the limiting blocks in the bottom, and when the spring washer bottom plate is detached, the first heavy spring washer and the second heavy spring washer can be conveniently replaced; by means of the buffering sliding blocks sliding in the sliding grooves, when the elastic cushion bottom plate is connected through the connecting bolts, the transverse elastic cushions and the springs at the two ends of the buffering sliding blocks can conduct transverse buffering, when the vehicle body and the elastic cushion bottom plate receive front-back transverse force, the buffering effect can be achieved, and direct impact on the connecting bolts is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of rail vehicles, in particular to a connecting device for rail vehicles. Background Technique

[0002] Rail vehicles (including trailers, the same below) are the main transportation tools for construction departments such as railway equipment maintenance, overhaul, and infrastructure construction. When rail vehicles are in use, steering connection structures are provided between car bodies. Through these structures, rigid connections between car bodies can be facilitated, and it is convenient for the car bodies to drive each other to move.

[0003] After retrieval, as disclosed in the Chinese patent document CN205273480U, a rail vehicle connecting device, by adopting a single drawbar connection method between the vehicle body and the bogie, and setting heavy spring washers and rubber elastic nodes, to play a role in buffering longitudinal vibration and consuming vibration energy, but there are still the following defects:

[0004] When the above-mentioned rail vehicle connecting device is in use, although heavy spring washers are provided to buffer the connection between the draw pin body and the bottom of the vehicle body, when the vehicle body moves, there will also be forward and backward thrusts and pulls between the vehicle body and the draw pin body. The heavy spring washers provided will generate two forces in the front and back directions on the connecting bolts, which will cause fatigue of the connecting bolts and lead to damage to the bolts. Moreover, the heavy spring washers are not convenient for quick replacement to maintain their buffering effect. Content of the Utility Model

[0005] The purpose of the utility model is to provide a connecting device for rail vehicles to solve the problem in the above-mentioned background technique that although the connecting device of the rail vehicle is provided with heavy spring washers to buffer the connection between the draw pin body and the bottom of the vehicle body, when the vehicle body moves, there will also be forward and backward thrusts and pulls between the vehicle body and the draw pin body. The heavy spring washers provided will generate two forces in the front and back directions on the connecting bolts, which will cause fatigue of the connecting bolts and lead to damage to the bolts. Moreover, the heavy spring washers are not convenient for quick replacement to maintain their buffering effect.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A connecting device for rail vehicles, including a vehicle body, a draw pin body is arranged at the bottom of the vehicle body, a spring washer bottom plate is fixed at the top of the draw pin body, and a first spring washer limiting frame corresponding to the spring washer bottom plate is arranged at the bottom of the vehicle body. A first heavy spring washer and a second heavy spring washer are arranged inside the first spring washer limiting frame, and the second heavy spring washer and the first heavy spring washer are arranged inside the spring washer bottom plate.

[0007] Preferably, four groups of buffer sliders with a "T"-shaped cross-section are provided at the bottom of the vehicle body. A sliding groove is provided at the connection between the buffer slider and the vehicle body, and a buffer pad is provided on the contact surface between the bottom of the buffer slider and the sliding groove.

[0008] Preferably, the first spring pad limiting frame is of a rectangular structure, and the height dimension of the first spring pad limiting frame is less than half of the thickness dimension of the first heavy spring pad.

[0009] Preferably, a connecting bolt is threadedly connected to the bottom of the buffer slider, and an elliptical connecting hole is provided at the connection between the connecting bolt and the spring pad bottom plate. The inner wall of the connecting hole is slidably connected to the connecting bolt.

[0010] Preferably, a buffer pad is also covered at the connection between the bottom of the buffer slider and the top surface of the spring pad bottom plate.

[0011] Preferably, a second spring pad limiting frame consistent with the first spring pad limiting frame is fixed at a position of the spring pad bottom plate close to the first spring pad limiting frame.

[0012] Preferably, limiting blocks corresponding to the positions and quantities of the first heavy spring pad and the second heavy spring pad are provided on the top of the spring pad bottom plate. Limiting grooves are provided at the connections between the bottoms of the first heavy spring pad and the second heavy spring pad and the limiting blocks.

[0013] Preferably, the first heavy spring pad and the second heavy spring pad are of a strip structure, and the first heavy spring pad is filled on the top surface of the spring pad bottom plate, and the top surfaces of the first heavy spring pad and the second heavy spring pad are connected to the bottom surface of the vehicle body.

[0014] Preferably, the second heavy spring pad is located below the sliding groove of the vehicle body, and six groups of second heavy spring pads are provided, and the six groups of second heavy spring pads are respectively provided on both sides of the four groups of buffer sliders.

[0015] Preferably, a horizontal spring pad with a "return" - shaped cross-section is fixed at one end of the second heavy spring pad close to the buffer slider. A clamping pad is fixed at one end of the horizontal spring pad close to the buffer slider, and the clamping pad is fixedly connected to the buffer slider. A spring is provided inside the horizontal spring pad, and the length dimension of the spring is greater than the length dimension of the horizontal spring pad.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] 1. By providing the first spring pad limiting frame and the spring pad bottom plate with the second spring pad limiting frame, the first heavy spring pad and the second heavy spring pad can be clamped therebetween, and through the engagement of the limiting grooves at the bottom with the limiting blocks, the combined connection of the first heavy spring pad and the second heavy spring pad can be facilitated. When the spring pad bottom plate is removed, the replacement of the first heavy spring pad and the second heavy spring pad can be facilitated.

[0018] 2. By setting a buffer slider that slides in the chute, when connecting the spring washer bottom plate through the connecting bolt, the horizontal spring washers and springs at both ends can perform horizontal buffering. When the vehicle body and the spring washer bottom plate receive horizontal forces in the front and rear directions, it can play a buffering role and avoid direct impact on the connecting bolt. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the front view structural schematic diagram of the present utility model;

[0020] Figure 2 is the side sectional view structural schematic diagram of the present utility model;

[0021] Figure 3 is the sectional view structural schematic diagram of the present utility model;

[0022] Figure 4 is the structural schematic diagram of the first heavy-duty spring washer and the second heavy-duty spring washer of the present utility model;

[0023] Figure 5 is the structural schematic diagram of the second heavy-duty spring washer of the present utility model;

[0024] Figure 6 is the internal structural schematic diagram of the spring washer bottom plate of the present utility model.

[0025] In the figure: 1, vehicle body; 101, first spring washer limit frame; 102, buffer slider; 103, chute; 104, buffer pad; 2, pulling pin body; 3, spring washer bottom plate; 301, second spring washer limit frame; 302, connection hole; 303, limit block; 4, first heavy-duty spring washer; 5, connecting bolt; 6, second heavy-duty spring washer; 601, horizontal spring washer; 602, clamping pad; 603, spring; 604, limit groove. SPECIFIC EMBODIMENTS

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0027] Please refer to Figure 1-6, the utility model provides a connecting device for a rail vehicle, which includes a vehicle body 1, a first spring washer limiting frame 101, a buffer slider 102, a sliding groove 103, a buffer pad 104, a pulling pin body 2, a spring washer bottom plate 3, a second spring washer limiting frame 301, a connecting hole 302, a limiting block 303, a first heavy-duty spring washer 4, a connecting bolt 5, a second heavy-duty spring washer 6, a horizontal spring washer 601, a clamping pad 602, a spring 603 and a limiting groove 604. A pulling pin body 2 is arranged at the bottom of the vehicle body 1. Four groups of buffer sliders 102 with a "T"-shaped cross-section are arranged at the bottom of the vehicle body 1. A sliding groove 103 is opened at the connection between the buffer slider 102 and the vehicle body 1. A buffer pad 104 is arranged on the contact surface between the bottom of the buffer slider 102 and the sliding groove 103. The provided buffer pad 104 can buffer the connection between the buffer slider 102 and the vehicle body 1 and the connection between the buffer slider 102 and the connecting bolt 5. The bottom of the buffer slider 102 is threadedly connected with a connecting bolt 5, and an elliptical connecting hole 302 is opened at the connection between the connecting bolt 5 and the spring washer bottom plate 3. The inner wall of the connecting hole 302 is slidably connected with the connecting bolt 5. In this way, when the connecting bolt 5 rotates, the buffer slider 102 can be tightened to complete the connection between the spring washer bottom plate 3 and the vehicle body 1. A buffer pad 104 also covers the connection between the bottom of the buffer slider 102 and the top surface of the spring washer bottom plate 3 to improve the buffering effect at the connection between the spring washer bottom plate 3 and the vehicle body 1.

[0028] The top of the pulling pin body 2 is fixed with a spring washer bottom plate 3, and a first spring washer limiting frame 101 is arranged at the position corresponding to the spring washer bottom plate 3 at the bottom of the vehicle body 1. The first spring washer limiting frame 101 is of a rectangular structure, and the height dimension of the first spring washer limiting frame 101 is less than half of the thickness dimension of the first heavy-duty spring washer 4. In this way, the first heavy-duty spring washer 4 can be restricted by the first spring washer limiting frame 101, and conversely, the direct contact between the first spring washer limiting frame 101 and the second spring washer limiting frame 301 below can be avoided through the first heavy-duty spring washer 4. Then, the connection between the spring washer bottom plate 3 and the vehicle body 1 is buffered through the first heavy-duty spring washer 4. A second spring washer limiting frame 301 consistent with the first spring washer limiting frame 101 is fixed at the position of the spring washer bottom plate 3 close to the first spring washer limiting frame 101. The second spring washer limiting frame 301 can fix the first heavy-duty spring washer 4. Limiting blocks 303 corresponding to the positions and quantities of the first heavy-duty spring washer 4 and the second heavy-duty spring washer 6 are arranged at the top of the spring washer bottom plate 3. Limiting grooves 604 are opened at the connections between the bottoms of the first heavy-duty spring washer 4 and the second heavy-duty spring washer 6 and the limiting blocks 303. The provided limiting blocks 303 can slide inside the limiting grooves 604 to adjust the connection position between the spring washer bottom plate 3 and the vehicle body 1.

[0029] Inside the first spring pad limit frame 101, there are a first heavy spring pad 4 and a second heavy spring pad 6. The second heavy spring pad 6 and the first heavy spring pad 4 are arranged inside the spring pad bottom plate 3. The first heavy spring pad 4 and the second heavy spring pad 6 are strip-shaped structures. The first heavy spring pad 4 is filled on the top surface of the spring pad bottom plate 3, and the top surfaces of the first heavy spring pad 4 and the second heavy spring pad 6 are connected to the bottom surface of the vehicle body 1. In this way, the first heavy spring pad 4 and the second heavy spring pad 6 can be separately disassembled and replaced. The second heavy spring pad 6 is located below the sliding groove 103 of the vehicle body 1, and there are six groups of the second heavy spring pads 6. The six groups of the second heavy spring pads 6 are respectively arranged on both sides of the four buffer sliders 102. The arranged second heavy spring pads 6 can fill the gaps between the four buffer sliders 102. One end of the second heavy spring pad 6 close to the buffer slider 102 is fixed with a horizontal spring pad 601 with a "return" - shaped cross - section. One end of the horizontal spring pad 601 close to the buffer slider 102 is fixed with a clamping pad 602, and the clamping pad 602 is fixedly connected to the buffer slider 102. Inside the horizontal spring pad 601, there is a spring 603, and the length dimension of the spring 603 is greater than the length dimension of the horizontal spring pad 601. Through the horizontal spring pad 601 of the buffer slider 102, the buffer slider 102 can be buffered horizontally. In this way, the shear force between the vehicle body 1 during movement and the spring pad bottom plate 3 with the pulling pin body 2 can be reduced, and the impact and damage to the connecting bolt 5 of the connection can be reduced.

[0030] In the use of the embodiment of the present application: By setting the first spring pad limiting frame 101 and the spring pad bottom plate 3 with the second spring pad limiting frame 301, the first heavy spring pad 4 and the second heavy spring pad 6 can be clamped therebetween. Then, when the connecting bolt 5 is connected, the first heavy spring pad 4 and the second heavy spring pad 6 can play a buffering effect. The first heavy spring pad 4 and the second heavy spring pad 6 are engaged with the limiting block 303 through the limiting grooves 604 at the bottom, which can facilitate the combined connection of the first heavy spring pad 4 and the second heavy spring pad 6. When the spring pad bottom plate 3 is removed, it is convenient to replace the first heavy spring pad 4 and the second heavy spring pad 6. The buffer slider 102 that extends downward from the bottom of the vehicle body 1 and can slide through the sliding groove 103 can be used for fine adjustment of the position and slides inside the sliding groove 103. Thus, when the spring pad bottom plate 3 is connected by the connecting bolt 5, the horizontal buffering is carried out through the horizontal spring pads 601 and the springs 603 at both ends of the second heavy spring pad 6. When the vehicle body 1 and the spring pad bottom plate 3 receive the front-back and horizontal forces, it can play a buffering role to avoid direct impact on the connecting bolt 5 and reduce the situation of the connecting bolt 5 breaking. In this way, the connection device of a rail vehicle is used up. It should be noted that the present utility model is a connection device of a rail vehicle, and the components are all general standard components or components known to those skilled in the art. Its structure and principle can be known to those skilled in the art through technical manuals or obtained through conventional experimental methods. At the idle place of this device, all the above-mentioned electrical components, which refer to power elements, electrical components, and the adapted monitoring computer and power supply, are connected through wires. For the specific connection means, reference should be made to the above working principle to complete the electrical connection according to the sequential working order between the electrical components. The detailed connection means are well-known techniques in the art.

[0031] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A connection device for a rail vehicle, comprising a vehicle body (1), characterized in that: A pulling pin body (2) is arranged at the bottom of the vehicle body (1), a spring pad bottom plate (3) is fixed to the top of the pulling pin body (2), and a first spring pad limiting frame (101) is arranged at a position corresponding to the spring pad bottom plate (3) at the bottom of the vehicle body (1), a first heavy spring pad (4) and a second heavy spring pad (6) are arranged inside the first spring pad limiting frame (101), and the second heavy spring pad (6) and the first heavy spring pad (4) are arranged inside the spring pad bottom plate (3).

2. A rail vehicle connection device according to claim 1, characterized in that: The bottom of the vehicle body (1) is provided with four groups of buffer sliding blocks (102) with a "T"-shaped cross section, a slide groove (103) is provided at the connection between the buffer sliding block (102) and the vehicle body (1), and a buffer pad (104) is provided on the contact surface between the bottom of the buffer sliding block (102) and the slide groove (103).

3. A rail vehicle connection device according to claim 1, characterized in that: The first spring washer limiting frame (101) is a rectangular structure, and the height dimension of the first spring washer limiting frame (101) is less than half of the thickness dimension of the first heavy spring washer (4).

4. A rail vehicle connection device according to claim 2, characterized in that: The bottom of the buffer sliding block (102) is threadedly connected to a connecting bolt (5), and a connecting hole (302) with an elliptical structure is provided at the connection between the connecting bolt (5) and the spring pad bottom plate (3), and the inner wall of the connecting hole (302) is slidably connected to the connecting bolt (5).

5. A rail vehicle connection device according to claim 2, characterized in that: The connection between the bottom of the buffer sliding block (102) and the top surface of the spring pad bottom plate (3) is also covered with a buffer pad (104).

6. A rail vehicle connection device according to claim 1, characterized in that: A second spring washer limiting frame (301) consistent with the first spring washer limiting frame (101) is fixed to a position of the spring washer bottom plate (3) close to the first spring washer limiting frame (101).

7. A rail vehicle connection device according to claim 1, characterized in that: A limit block (303) corresponding to the position and quantity of the first heavy spring pad (4) and the second heavy spring pad (6) is arranged on the top of the spring pad bottom plate (3), and a limit groove (604) is provided at the connection between the bottom of the first heavy spring pad (4) and the second heavy spring pad (6) and the limit block (303).

8. A rail vehicle connection device according to claim 1, characterized in that: The first heavy-duty spring pad (4) and the second heavy-duty spring pad (6) are strip-shaped structures, and the first heavy-duty spring pad (4) is filled on the top surface of the spring pad bottom plate (3), and the top surfaces of the first heavy-duty spring pad (4) and the second heavy-duty spring pad (6) are connected to the bottom surface of the vehicle body (1).

9. A rail vehicle connection device according to claim 1, characterized in that: The second heavy spring pads (6) are located below the slide groove (103) of the vehicle body (1), and six groups of the second heavy spring pads (6) are provided, and the six groups of the second heavy spring pads (6) are respectively arranged on both sides of the four groups of buffer sliding blocks (102).

10. A rail vehicle connection device according to claim 1, characterized in that: A transverse spring washer (601) with a "U"-shaped cross-section is fixed to one end of the second heavy spring washer (6) close to the buffer slider (102); a clamping pad (602) is fixed to one end of the transverse spring washer (601) close to the buffer slider (102); the clamping pad (602) and the buffer slider (102) are fixedly connected; a spring (603) is arranged inside the transverse spring washer (601), and the length of the spring (603) is greater than the length of the transverse spring washer (601).

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