Mechanism for preventing oil leakage of side bearing of locomotive bogie

Abstract

The utility model discloses a mechanism for preventing oil leakage of a side bearing of a locomotive bogie. The mechanism comprises a bottom plate, a side bearing outer seat is fixedly installed at the top of the bottom plate, a side bearing inner seat is arranged in the side bearing outer seat, an oil immersion groove is formed in the side bearing inner seat, a side bearing plate is arranged above the side bearing inner seat, and a sealing assembly is connected between the outer side of the top of the side bearing inner seat and the side bearing plate. According to the mechanism for preventing oil leakage of the side bearing of the locomotive bogie, the sealing tightness between the outer side of the side bearing inner seat and the side bearing plate is enhanced by arranging the sealing assembly, the sealing ring body extends into the sealing ring groove, and the sealing clamping frame at the top of the sealing ring body extends into the sealing clamping groove; the side, close to the side bearing plate, of the sealing seat is attached to the side bearing plate, sealing of the interior of the side bearing inner seat is further enhanced, and the technical problems that in the related technology, a sealing ring extends upwards into a sealing groove in the side bearing plate, part of the sealing ring is exposed, elasticity is prone to losing after a long time, and the sealing effect is poor are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of locomotive bogie side bearings, in particular to a mechanism for preventing locomotive bogie side bearings from leaking oil. Background Art

[0002] Bogie is one of the most important parts in the structure of rail vehicles. It is mainly composed of rubber springs and hydraulic shock absorbers connecting the bogie frame and axle box, wheels and axle box, center pin, side bearings, hydraulic support basic brake devices, etc. It is divided into three types: frame-type welded bogies, three-piece bogies, and quasi-frame bogies. Most bogies are equipped with side bearings, and their main functions are: ① to bear the vertical load of the locomotive body; ② to evenly distribute the axle weight; ③ to reduce the excessive frame force generated when the locomotive passes through the curve; ④ to ensure the stability of the locomotive on the bogie; ⑤ to attenuate the shaking vibration of the bogie.

[0003] The patent document with application number CN219346179U discloses a device for solving the oil leakage of the side bearing of a locomotive bogie, comprising a side bearing outer seat mounted on the bogie, a side bearing inner seat arranged in the side bearing outer seat, a roller seat arranged in the side bearing inner seat, a roller arranged rotatably in the roller seat, lubricating oil arranged between the roller and the roller seat, a side bearing plate connected to the top of the roller, the side bearing plate located above the side bearing inner seat, a sealing ring seat fixed around the outer wall of the side bearing inner seat, a sealing space formed between the sealing ring seat and the side bearing inner seat, a sealing ring arranged in the sealing space, the sealing ring in contact with the side bearing plate, an oil return channel opened on the side bearing inner seat, one end of the oil return channel is connected to the sealing space, and the other end is connected to the inner cavity of the side bearing inner seat. The oil return channel is added to make the lubricating oil accumulated in the sealing ring seat flow back to the side bearing inner seat, thereby preventing oil leakage at the sealing ring seat, and realizing the recycling of the lubricating oil, so that the lubricating oil is fully utilized.

[0004] In the above-mentioned related technologies, the sealing ring extends straight up to the inside of the sealing groove in the side bearing plate, and the sealing ring is partially exposed to the outside, which is easy to lose elasticity over time and has a poor sealing effect. To address the above problems, we have introduced a mechanism to prevent oil leakage from the locomotive bogie side bearing. Utility Model Content

[0005] The utility model discloses a mechanism for preventing oil leakage from a side bearing of a locomotive bogie, aiming to solve the technical problem in the related technology that a sealing ring directly extends upward to the inside of a sealing groove in a side bearing plate and a portion of the sealing ring is exposed to the outside, which is prone to lose elasticity over time and has a poor sealing effect.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A mechanism for preventing oil leakage from a side bearing of a locomotive bogie comprises a bottom plate, a side bearing outer seat is fixedly mounted on the top of the bottom plate, a side bearing inner seat is arranged inside the side bearing outer seat, an oil immersion tank is provided inside the side bearing inner seat, a side bearing plate is arranged above the side bearing inner seat, and a sealing assembly is connected between the outer side of the top of the side bearing inner seat and the side bearing plate;

[0008] The sealing assembly includes a sealing seat, which is fixedly installed on the outer side of the side bearing inner seat and close to the top. A sealing ring body is fixedly installed inside the sealing seat, and a sealing card frame is fixedly installed on the top of the sealing ring body. A sealing ring groove is opened on the side of the side bearing plate close to the sealing card frame, and a sealing card groove is opened on the side of the side bearing plate close to the sealing ring groove.

[0009] By setting up the sealing assembly, it is beneficial to strengthen the sealing tightness between the outer side of the side bearing inner seat and the side bearing plate. The sealing ring body extends to the inside of the sealing ring groove, and the sealing card frame on the top of the sealing ring body extends to the inside of the sealing card groove. The side of the sealing seat close to the side bearing plate is in contact with the side bearing plate, which further strengthens the sealing of the inside of the side bearing inner seat. This solves the technical problem in the related art that the sealing ring extends upward to the inside of the sealing groove in the side bearing plate, and the sealing ring is partially exposed to the outside, which is easy to lose elasticity over time and has a poor sealing effect.

[0010] In a preferred solution, a positioning card frame is fixedly mounted on one side of the sealing seat close to the side bearing plate, a positioning card slot is formed on one side of the side bearing plate close to the positioning card frame, and the positioning card frame extends into the interior of the positioning card slot.

[0011] The positioning card frame is arranged to extend into the positioning card slot, which is beneficial to further strengthen the sealing of the connection between the sealing seat and the side bearing plate, and the effect is better.

[0012] In a preferred solution, roller seats are arranged around the bottom of the oil immersion tank, a roller is connected to a side of the side bearing plate close to the roller seat, and the bottom end of the roller extends into the inside of the roller seat.

[0013] The roller is extended to the inside of the roller seat, and a truncated cone-shaped groove which is wide at the top and narrow at the bottom is provided on the side of the roller seat close to the roller, so that the oil in the oil immersion groove can flow to the side of the roller seat close to the roller.

[0014] In a preferred solution, an inner cavity is provided inside the side bearing inner seat, an oil return groove is provided outside the side bearing inner seat and on a side close to the sealing seat, and the interior of the sealing seat is connected with the interior of the oil immersion tank through the oil return groove.

[0015] The oil return groove is provided to facilitate the oil overflowing into the sealing seat to flow back into the oil immersion groove.

[0016] In a preferred solution, a side of the inner bottom wall of the sealing seat close to the inner seat of the side bearing is inclined toward the oil return groove, and the oil return groove is configured as an inclined groove inclined toward the inside of the oil immersion tank.

[0017] By setting the inclination of the bottom wall inside the sealing seat and the inclined structure of the oil return groove, the oil overflowing from the annular groove formed by the sealing seat and the side bearing inner seat can be returned to the oil immersion groove, thereby speeding up the oil return and making it more convenient to use.

[0018] In a preferred solution, the cross-sections of the sealing card slot and the sealing card frame are both set to a trapezoidal structure.

[0019] By setting the sealing card slot and the sealing card frame cross-section to a trapezoidal structure, the side bearing plate support is more stable and the connection is closer.

[0020] The utility model provides a mechanism for preventing oil leakage from a side bearing of a locomotive bogie, which has the following advantages:

[0021] Firstly, by setting up the sealing assembly, it is helpful to strengthen the sealing tightness between the outer side of the side bearing inner seat and the side bearing plate. The sealing ring body extends to the inside of the sealing ring groove, and the sealing card frame on the top of the sealing ring body extends to the inside of the sealing card groove. The side of the sealing seat close to the side bearing plate is in contact with the side bearing plate, thereby further strengthening the sealing of the inside of the side bearing inner seat. This solves the technical problem in the related art that the sealing ring extends directly upward to the inside of the sealing groove in the side bearing plate, and the sealing ring is partially exposed to the outside, which is easy to lose elasticity over time and has a poor sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The utility model is a three-dimensional schematic diagram of a mechanism for preventing oil leakage from a locomotive bogie side bearing.

[0023] Figure 2 The utility model discloses a three-dimensional split cross-sectional schematic diagram of a mechanism for preventing oil leakage from a side bearing of a locomotive bogie.

[0024] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0025] Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0026] In the attached drawings: 1. bottom plate; 2. side bearing outer seat; 3. side bearing plate; 4. side bearing inner seat; 41. oil immersion tank; 42. inner cavity; 43. oil return tank; 5. sealing assembly; 51. sealing seat; 52. sealing ring body; 53. sealing card frame; 54. sealing ring groove; 55. sealing card slot; 56. positioning card frame; 57. positioning card slot; 6. roller seat; 7. roller. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application usually described and marked in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0028] The utility model discloses a mechanism for preventing oil leakage of a locomotive bogie side bearing, which is mainly used in the sealing scene of the locomotive bogie side bearing.

[0029] Reference Figure 1 and Figure 2 , a mechanism for preventing oil leakage from a side bearing of a locomotive bogie, comprising: a bottom plate 1, a side bearing outer seat 2 is fixedly mounted on the top of the bottom plate 1, a side bearing inner seat 4 is arranged inside the side bearing outer seat 2, an oil immersion groove 41 is opened inside the side bearing inner seat 4, a side bearing plate 3 is arranged above the side bearing inner seat 4, and a sealing component 5 is connected between the outer side of the top of the side bearing inner seat 4 and the side bearing plate 3;

[0030] The sealing assembly 5 includes a sealing seat 51, which is fixedly installed on the outer side of the side bearing inner seat 4 and close to the top. A sealing ring body 52 is fixedly installed inside the sealing seat 51, and a sealing card frame 53 is fixedly installed on the top of the sealing ring body 52. ​​A sealing ring groove 54 is opened on the side of the side bearing plate 3 close to the sealing card frame 53, and a sealing card groove 55 is opened on the side of the side bearing plate 3 close to the sealing ring groove 54.

[0031] Among them, a positioning card frame 56 is fixedly installed on the side of the sealing seat 51 close to the side bearing plate 3, and a positioning card slot 57 is opened on the side of the side bearing plate 3 close to the positioning card frame 56, and the positioning card frame 56 extends to the inside of the positioning card slot 57; by setting the positioning card frame 56 to extend to the inside of the positioning card slot 57, it is beneficial to further strengthen the sealing of the connection between the sealing seat 51 and the side bearing plate 3, and the effect is better.

[0032] Among them, there are roller seats 6 around the bottom of the oil immersion groove 41, and rollers 7 are connected to the side of the side bearing plate 3 close to the roller seat 6, and the bottom end of the roller 7 extends to the inside of the roller seat 6; by arranging the roller 7 to extend to the inside of the roller seat 6, a truncated cone-shaped groove that is wide at the top and narrow at the bottom is arranged on the side of the roller seat 6 close to the roller 7, so that the oil inside the oil immersion groove 41 can flow to the side of the roller seat 6 close to the roller 7.

[0033] Among them, the cross-sections of the sealing card slot 55 and the sealing card frame 53 are both set to a trapezoidal structure; by setting the cross-sections of the sealing card slot 55 and the sealing card frame 53 to be a trapezoidal structure, the support of the side bearing plate 3 is more stable and the connection is closer.

[0034] In this embodiment, the sealing assembly 5 is provided to enhance the sealing tightness between the outer side of the side bearing inner seat 4 and the side bearing plate 3. The sealing ring body 52 extends to the inside of the sealing ring groove 54, and the sealing card frame 53 on the top of the sealing ring body 52 extends to the inside of the sealing card groove 55. The side of the sealing seat 51 close to the side bearing plate 3 is in contact with the side bearing plate 3, thereby further enhancing the sealing of the inside of the side bearing inner seat 4. This solves the technical problem in the related art that the sealing ring extends directly upward to the inside of the sealing groove in the side bearing plate, and the sealing ring is partially exposed to the outside, which is prone to lose elasticity over time and has a poor sealing effect.

[0035] In the above technical solution, considering the problem of strengthening the oil return inside the sealing seat 51, in order to solve such a problem, the specific operation is as follows:

[0036] Reference Figure 1 and Figure 4 In a preferred embodiment, an inner cavity 42 is provided inside the side bearing inner seat 4, and an oil return groove 43 is provided on the outer side of the side bearing inner seat 4 and on a side close to the sealing seat 51, and the interior of the sealing seat 51 is connected with the interior of the oil immersion tank 41 through the oil return groove 43;

[0037] Among them, the inner bottom wall of the sealing seat 51 is inclined toward the oil return groove 43 on one side close to the side bearing inner seat 4, and the oil return groove 43 is set as an inclined groove inclined toward the inside of the oil immersion groove 41; by setting the inclination of the inner bottom wall of the sealing seat 51 and the inclined structure of the oil return groove 43, it is beneficial to return the oil overflowing from the annular groove formed by the sealing seat 51 and the side bearing inner seat 4 to the inside of the oil immersion groove 41, thereby accelerating the speed of oil return and making it more convenient to use.

[0038] In this embodiment, the oil return groove 43 is provided to facilitate the oil overflowing into the sealing seat 51 to flow back into the oil immersion groove 41 .

[0039] Working principle: When in use, the sealing assembly 5 is provided to enhance the sealing tightness between the outer side of the side bearing inner seat 4 and the side bearing plate 3. The sealing ring body 52 extends to the inside of the sealing ring groove 54, and the sealing card frame 53 on the top of the sealing ring body 52 extends to the inside of the sealing card groove 55. The side of the sealing seat 51 close to the side bearing plate 3 is in contact with the side bearing plate 3, further enhancing the sealing of the inside of the side bearing inner seat 4. This solves the technical problem in the related art that the sealing ring extends straight up to the inside of the sealing groove in the side bearing plate, and the sealing ring is partially exposed to the outside, which is easy to lose elasticity over time and has a poor sealing effect.

[0040] The above are only preferred specific implementations of the utility model, but the protection scope of the utility model is not limited to them. The replacement can be a replacement of part of the structure, device, method step, or a complete technical solution. Equivalent replacement or change based on the technical solution of the utility model and its utility model concept should be included in the protection scope of the utility model.

Claims

1. A mechanism for preventing oil leakage from a side bearing of a locomotive bogie, comprising a bottom plate (1), characterized in that: A side bearing outer seat (2) is fixedly mounted on the top of the bottom plate (1), a side bearing inner seat (4) is arranged inside the side bearing outer seat (2), an oil immersion tank (41) is provided inside the side bearing inner seat (4), a side bearing plate (3) is arranged above the side bearing inner seat (4), and a sealing assembly (5) is connected between the outer side of the top of the side bearing inner seat (4) and the side bearing plate (3); The sealing assembly (5) comprises a sealing seat (51), the sealing seat (51) being fixedly mounted on the outer side of the side bearing inner seat (4) and close to the top; a sealing ring body (52) being fixedly mounted inside the sealing seat (51); a sealing card frame (53) being fixedly mounted on the top of the sealing ring body (52); a sealing ring groove (54) being provided inside the side bearing plate (3) and close to the sealing card frame (53); and a sealing card groove (55) being provided inside the side bearing plate (3) and close to the sealing ring groove (54).

2. The mechanism for preventing oil leakage from a locomotive bogie side bearing according to claim 1, characterized in that: A positioning card frame (56) is fixedly mounted on one side of the sealing seat (51) close to the side support plate (3); a positioning card slot (57) is provided on one side of the side support plate (3) close to the positioning card frame (56); and the positioning card frame (56) extends into the interior of the positioning card slot (57).

3. The mechanism for preventing oil leakage from a locomotive bogie side bearing according to claim 1, characterized in that: The bottom of the oil immersion tank (41) is surrounded by roller seats (6), and a roller (7) is connected to one side of the side bearing plate (3) close to the roller seat (6), and the bottom end of the roller (7) extends into the interior of the roller seat (6).

4. The mechanism for preventing oil leakage from a locomotive bogie side bearing according to claim 1, characterized in that: An inner cavity (42) is provided inside the side bearing inner seat (4), an oil return groove (43) is provided on the outer side of the side bearing inner seat (4) and on a side close to the sealing seat (51), and the interior of the sealing seat (51) is connected to the interior of the oil immersion groove (41) through the oil return groove (43).

5. The mechanism for preventing oil leakage from a locomotive bogie side bearing according to claim 4, characterized in that: The inner bottom wall of the sealing seat (51) is inclined toward the oil return groove (43) on one side close to the side bearing inner seat (4), and the oil return groove (43) is configured as an inclined groove inclined toward the inside of the oil immersion groove (41).

6. The mechanism for preventing oil leakage from a locomotive bogie side bearing according to claim 1, characterized in that: The cross-sections of the sealing card slot (55) and the sealing card frame (53) are both arranged to be trapezoidal structures.

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