Railway vehicle steering knuckle bushing

Abstract

The utility model relates to the technical field of steering knuckle bushings, and discloses a railway vehicle steering knuckle bushing which comprises a steering knuckle, a bushing assembly, a lubricating assembly, a top plate assembly, a damping assembly and a sealing assembly, the bushing assembly is sleeved outside the steering knuckle, the lubricating assembly is arranged at the top of the bushing assembly and sleeved inside the top plate assembly, and the damping assembly is sleeved inside the top plate assembly. The top plate assembly is installed at the top of the lining assembly, the vibration reduction assembly is arranged at the top of the top plate assembly, and the lining assembly is sleeved with the sealing assembly. Friction and abrasion between the bushing and a metal part can be reduced, so that the service life of the bushing is prolonged, the long-term maintenance cost is reduced, the replacement frequency is reduced, and the working efficiency of a railway vehicle is improved; vibration and impact from the rail can be absorbed and consumed easily, transmission of vibration and noise is reduced, and a quiet and stable riding environment is created for passengers.

Description

Technical Field

[0001] This utility model relates to the field of steering knuckle bushing technology, and more specifically to a steering knuckle bushing for rail vehicles. Background Technology

[0002] With the continuous development of rail vehicle technology, higher requirements are being placed on bogies, and the design requirements of the bogie bushing, as a part of the bogie, are of paramount importance.

[0003] The lack of an effective lubrication mechanism for existing rail vehicle steering knuckle bushings leads to severe wear of the steering knuckle and bushings during vehicle operation, reducing vehicle operating efficiency and increasing replacement costs. This is because the durability of rubber bushings decreases without lubrication, and vibration and noise levels inside the vehicle may increase on bumpy roads, affecting passenger comfort. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a railway vehicle steering knuckle bushing to solve the problems existing in the background art.

[0005] This utility model provides the following technical solution: a railway vehicle steering knuckle bushing, including a steering knuckle, a bushing assembly, a lubrication assembly, a top plate assembly, a vibration damping assembly, and a sealing assembly. The bushing assembly is sleeved on the outside of the steering knuckle. The lubrication assembly is disposed on the top of the bushing assembly and sleeved inside the top plate assembly. The top plate assembly is installed on the top of the bushing assembly. The vibration damping assembly is disposed on the top of the top plate assembly. The sealing assembly is sleeved inside the bushing assembly. The lubrication assembly includes a one-way valve, an oil supply pipe, a fixed body, an oil filter disc, a sealing ball, and an oil filter hole. One side of the one-way valve is fixedly installed on the top side of the top plate assembly. One end of the oil supply pipe is fixedly sleeved inside the one-way valve. The top of the fixed body is movably engaged in a fixed hole, and the bottom of the fixed body is fixedly connected to an oil filter disc. A sealing ball is circumferentially formed on the oil filter disc, and the oil filter hole is movably sleeved on the sealing ball.

[0006] Preferably, the bushing assembly includes a protective shell, a retainer, side bolts, an oil inlet, and a fixing hole. The protective shell is symmetrically installed on both sides of the steering knuckle. The retainer is fixedly connected to one side of the protective shell. The side bolts are movably sleeved on the top and bottom of both sides of the retainer. The oil inlet is opened at the top of the protective shell, and the fixing hole is opened at the top of the inner cavity of the protective shell.

[0007] Preferably, the top plate assembly includes a fixing plate, top bolts, and an oil delivery channel. The fixing plate is disposed on the top of the protective shell, and the top bolts are evenly installed inside the fixing plate to connect the protective shell and the fixing plate. The oil delivery channel is formed on one side of the inside of the fixing plate.

[0008] Preferably, the vibration damping assembly includes an upper buffer body, a lower buffer body, a fixed shaft, a damping plate, and a spring. The bottom of the lower buffer body is fixedly connected to the top of the fixed plate, and the upper buffer body is movably sleeved on the outside of the lower buffer body. The fixed shaft is symmetrically arranged at the top of the inner cavity of the upper buffer body and the bottom of the inner cavity of the lower buffer body. The damping plate is fixedly sleeved on the outside of the fixed shaft. The spring is arranged in the inner cavities of the upper and lower buffer bodies, and the top and bottom of the spring are respectively movably engaged with the outside of the upper and lower fixed shafts.

[0009] Preferably, the sealing assembly includes a sealing plate and a sealing ring, wherein the sealing plate is snapped into the inside of the two protective shells, and the sealing ring is snapped into the bottom of the protective shell.

[0010] The technical effects and advantages of this utility model are as follows:

[0011] This invention, by incorporating a bushing assembly and a lubrication assembly, helps reduce friction and wear between the bushing and metal components, thereby extending the service life of the bushing, reducing long-term maintenance costs and replacement frequency, and improving the working efficiency of rail vehicles.

[0012] This invention, by incorporating a bushing assembly and a vibration damping assembly, helps to absorb and dissipate vibrations and impacts from the track, reducing the propagation of vibrations and noise, and creating a quiet and stable riding environment for passengers. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the overall structure and some cross-sectional views of the present invention.

[0015] Figure 3 This is a partial structural diagram and cross-sectional view of the present invention.

[0016] The attached diagram is labeled as follows: 1. Steering knuckle; 2. Bushing assembly; 201. Protective shell; 202. Fixing device; 203. Side bolt; 204. Oil inlet hole; 205. Fixing hole; 3. Lubrication assembly; 301. One-way valve; 302. Oil inlet pipe; 303. Fixing body; 304. Oil filter disc; 305. Sealing ball; 306. Oil filter hole; 4. Top plate assembly; 401. Fixing plate; 402. Top bolt; 403. Oil inlet groove; 5. Vibration damping assembly; 501. Upper buffer body; 502. Lower buffer body; 503. Fixing shaft; 504. Vibration damping plate; 505. Spring; 6. Sealing assembly; 601. Sealing plate; 602. Sealing ring. Detailed Implementation

[0017] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The rail vehicle steering knuckle bushing involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] Reference Figure 1-3 This utility model provides a railway vehicle steering knuckle bushing, including a steering knuckle 1, a bushing assembly 2, a lubrication assembly 3, a top plate assembly 4, a vibration damping assembly 5, and a sealing assembly 6. The bushing assembly 2 is sleeved on the outside of the steering knuckle 1, the lubrication assembly 3 is disposed on the top of the bushing assembly 2 and sleeved on the inside of the top plate assembly 4, the top plate assembly 4 is mounted on the top of the bushing assembly 2, the vibration damping assembly 5 is disposed on the top of the top plate assembly 4, and the sealing assembly 6 is sleeved on the inside of the bushing assembly 2.

[0019] The bushing assembly 2 includes a protective shell 201, a retainer 202, side bolts 203, an oil inlet 204, and a fixing hole 205. The protective shell 201 is symmetrically installed on both sides of the steering knuckle 1. The retainer 202 is fixedly connected to one side of the protective shell 201. The side bolts 203 are respectively movably sleeved on the top and bottom of both sides of the retainer 202. The oil inlet 204 is opened on the top of the protective shell 201, and the fixing hole 205 is opened on the top of the inner cavity of the protective shell 201. This facilitates the retainer 202 and the side bolts 203 to install the steering knuckle 1 inside the protective shells 201 on both sides, so that the steering knuckle 1 will not fall off during operation.

[0020] The lubrication assembly 3 includes a one-way valve 301, an oil supply pipe 302, a fixed body 303, an oil filter disc 304, a sealing ball 305, and an oil filter hole 306. One side of the one-way valve 301 is fixedly installed on the top side of the top plate assembly 4. One end of the oil supply pipe 302 is fixedly sleeved inside the one-way valve 301. The top of the fixed body 303 is movably engaged in the fixed hole 205, and the bottom of the fixed body 303 is fixedly connected to the oil filter disc 304. The oil filter disc 304 has a sealing ball 305 circumferentially formed on it, and the oil filter hole 306 is movably sleeved on the sealing ball 305. This facilitates the rotation or vibration of the steering knuckle 1, causing the oil filter hole 306 in contact with the steering knuckle 1 to roll, allowing the lubricating oil above the oil filter disc 304 to flow from the sealing ball 305 to between the steering knuckle 1 and the protective shell 201, thereby reducing the wear of the steering knuckle 1.

[0021] The top plate assembly 4 includes a fixing plate 401, top bolts 402, and an oil channel 403. The fixing plate 401 is located on top of the protective shell 201. The top bolts 402 are evenly installed inside the fixing plate 401 and connect the protective shell 201 and the fixing plate 401. The oil channel 403 is located on one side inside the fixing plate 401. The multiple top bolts 402 help to firmly fix the bushing assembly 2 and the top plate assembly 4, and prevent the vehicle from being affected by the detachment of a top bolt 402 during operation.

[0022] The vibration damping assembly 5 includes an upper buffer body 501, a lower buffer body 502, a fixed shaft 503, a damping plate 504, and a spring 505. The bottom of the lower buffer body 502 is fixedly connected to the top of the fixed plate 401, and the upper buffer body 501 is movably sleeved on the outside of the lower buffer body 502. The fixed shaft 503 is symmetrically arranged at the top of the inner cavity of the upper buffer body 501 and the bottom of the inner cavity of the lower buffer body 502. The damping plate 504 is fixedly sleeved on the outside of the fixed shaft 503. The spring 505 is arranged in the inner cavities of the upper buffer body 501 and the lower buffer body 502, and the top and bottom of the spring 505 are movably engaged on the outside of the upper and lower fixed shafts 503, which is beneficial for converting and absorbing the vibration and impact generated during vehicle operation.

[0023] The sealing assembly 6 includes a sealing plate 601 and a sealing ring 602. The sealing plate 601 is snapped into the inside of the two protective shells 201, and the sealing ring 602 is snapped into the bottom of the protective shell 201. This helps to prevent dust, moisture and other impurities from entering the bushing and protects the steering knuckle 1 from contamination.

[0024] The working principle of this utility model:

[0025] First, snap one protective shell 201 onto one side of the steering knuckle 1, and install the sealing plate 601 on one side of the protective shell 201. Install the sealing ring 602 on the bottom of the protective shell 201. Then fix the top of the fixing body 303 into the fixing hole 205. After placing the oil filter plate 304 on the top of the steering knuckle 1, close the other protective shell 201.

[0026] Secondly, the two side retainers 202 are fixed together by the side bolts 203 to ensure that the steering knuckle 1 is fixed inside the protective shell 201 and will not fall off. The fixing plate 401 is placed on the top of the protective shell 201 and aligned with the empty hole. The top bolts 402 are inserted to fix the protective shell 201 and the fixing plate 401 together.

[0027] Finally, when the vehicle is running on the track, the steering knuckle 1 vibrates with the track, causing the oil filter hole 306 in contact with the steering knuckle 1 to roll, allowing the lubricating oil above the oil filter disc 304 to flow from the sealing ball 305 to between the steering knuckle 1 and the protective shell 201, reducing the wear of the steering knuckle 1. Furthermore, when the vehicle passes through bumpy road sections, the lower buffer body 502 will move up and down in the inner cavity of the upper buffer body 501, converting and absorbing the generated vibrations and impacts through the spring 505.

[0028] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0029] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0030] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A railway vehicle steering knuckle bushing, comprising a steering knuckle (1), a bushing assembly (2), a lubrication assembly (3), a top plate assembly (4), a vibration damping assembly (5), and a sealing assembly (6), wherein the bushing assembly (2) is sleeved on the outside of the steering knuckle (1), the lubrication assembly (3) is disposed on the top of the bushing assembly (2) and sleeved inside the top plate assembly (4), the top plate assembly (4) is mounted on the top of the bushing assembly (2), the vibration damping assembly (5) is disposed on the top of the top plate assembly (4), and the sealing assembly (6) is sleeved inside the bushing assembly (2), characterized in that: The lubrication assembly (3) includes a one-way valve (301), an oil supply pipe (302), a fixed body (303), an oil filter disc (304), a sealing ball (305), and an oil filter hole (306). One side of the one-way valve (301) is fixedly installed on the top side of the top plate assembly (4). One end of the oil supply pipe (302) is fixedly sleeved inside the one-way valve (301). The top of the fixed body (303) is movably engaged in the fixed hole (205), and the bottom of the fixed body (303) is fixedly connected to the oil filter disc (304). The oil filter disc (304) has a sealing ball (305) circumferentially arranged on the oil filter disc (304), and the oil filter hole (306) is movably sleeved on the sealing ball (305).

2. The bogie knuckle bushing for a rail vehicle according to claim 1, characterized in that: The bushing assembly (2) includes a protective shell (201), a retainer (202), a side bolt (203), an oil inlet (204), and a fixing hole (205). The protective shell (201) is symmetrically installed on both sides of the steering knuckle (1). The retainer (202) is fixedly connected to one side of the protective shell (201). The side bolts (203) are respectively movably sleeved on the top and bottom of both sides of the retainer (202). The oil inlet (204) is opened on the top of the protective shell (201), and the fixing hole (205) is opened on the top of the inner cavity of the protective shell (201).

3. A railway vehicle bogie knuckle bushing according to claim 1, characterized in that: The top plate assembly (4) includes a fixing plate (401), top bolts (402) and an oil channel (403). The fixing plate (401) is located on the top of the protective shell (201). The top bolts (402) are evenly installed inside the fixing plate (401) and connect the protective shell (201) and the fixing plate (401). The oil channel (403) is located on one side inside the fixing plate (401).

4. A railway vehicle bogie knuckle bushing according to claim 1, characterized in that: The vibration damping assembly (5) includes an upper buffer body (501), a lower buffer body (502), a fixed shaft (503), a damping plate (504), and a spring (505). The bottom of the lower buffer body (502) is fixedly connected to the top of the fixed plate (401), and the upper buffer body (501) is movably sleeved on the outside of the lower buffer body (502). The fixed shaft (503) is symmetrically arranged at the top of the inner cavity of the upper buffer body (501) and the bottom of the inner cavity of the lower buffer body (502). The damping plate (504) is fixedly sleeved on the outside of the fixed shaft (503). The spring (505) is arranged in the inner cavities of the upper buffer body (501) and the lower buffer body (502), and the top and bottom of the spring (505) are movably engaged on the outside of the upper and lower fixed shafts (503), respectively.

5. A railway vehicle bogie knuckle bushing according to claim 1, characterized in that: The sealing assembly (6) includes a sealing plate (601) and a sealing ring (602). The sealing plate (601) is snapped into the inside of the two protective shells (201), and the sealing ring (602) is snapped into the bottom of the protective shell (201).

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