Knuckle bearing assembly for automobile belt rod end

Abstract

The utility model discloses a joint bearing assembly with a rod end for an automobile, which comprises a rod end body, an outer ring body and an inner ring body, protective covers are arranged outside two ends of the rod end body, and the protective covers cover the outer ring body and the inner ring body so as to prevent dust particles from entering a gap between the outer ring body and the inner ring body. The protective cover comprises a tower-shaped telescopic part, a first O-shaped ring and a second O-shaped ring, the first O-shaped ring and the second O-shaped ring are arranged at the two ends of the telescopic part respectively, an annular oil storage groove is formed in the inner spherical surface of the outer ring body, and the outer spherical surface of the inner ring body is covered with a micropore lubricating layer. One end of the tower-shaped telescopic protective cover can be sleeved outside the rod end body, and the other end of the tower-shaped telescopic protective cover can be sleeved outside the external connecting piece rod, so that the connecting part of the rod end body and the external connecting piece rod is integrally covered, the external connecting piece rod normally drives the inner ring body to be in sliding contact with the outer ring body, and silt can be effectively prevented from invading into the bearing; and the movement stability between the inner ring body and the outer ring body is ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive steering systems and suspension systems, and in particular to a joint bearing assembly for automotive rod ends. Background Technology

[0002] Spherical plain bearings are a type of spherical sliding bearing commonly used in automotive steering and suspension systems. A spherical plain bearing mainly consists of an outer spherical inner ring and an inner spherical outer ring; movement between the inner and outer rings is achieved through sliding contact.

[0003] However, existing spherical plain bearings have poor anti-contamination performance. When a car travels through harsh working conditions (such as mud and dust), contaminants may enter the bearing, causing jamming or wear between the inner and outer rings, and accelerating its aging.

[0004] To address this issue, we propose a spherical bearing assembly for automotive rod ends. Utility Model Content

[0005] The purpose of this invention is to provide a spherical bearing assembly for automotive rod ends to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A spherical bearing assembly for automobiles with rod ends includes a rod end body, an outer ring body, and an inner ring body. Protective covers are provided at both ends of the rod end body to cover the outer ring body and the inner ring body to prevent dust particles from entering the gap between the outer ring body and the inner ring body. The protective covers include a tower-shaped telescopic part and O-ring one and O-ring two respectively provided at both ends of the telescopic part.

[0008] In a further embodiment, both ends of the rod end body are provided with arc grooves, and an O-ring is tightly fitted outside the arc groove.

[0009] In a further embodiment, the inner diameter of the second O-ring is 1-2 mm smaller than the inner diameter of the inner ring body.

[0010] In a further embodiment, heat dissipation holes are provided on the outer circumferential sidewall of the rod end body.

[0011] In a further embodiment, an annular oil storage groove is formed on the inner spherical surface of the outer ring.

[0012] In a further embodiment, the outer spherical surface of the inner ring is covered with a microporous lubricating layer.

[0013] In a further embodiment, an oil injection nozzle is also installed on the rod end body, and one end of the oil injection nozzle is radially embedded in the mounting groove of the rod end body and the outer ring body.

[0014] In a further embodiment, the oil injection nozzle includes an oil injection pipe, a buffer pipe and a dispersion pipe connected in sequence, and a valve core is installed in the buffer pipe by means of a mounting ring and a spring. The valve core is used to close the connection between the oil injection pipe and the buffer pipe.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model features a tower-shaped telescopic protective cover, one end of which can be fitted over the rod end body, and the other end of which can be fitted over the outer connecting rod. This completely covers the connection between the rod end body and the outer connecting rod, allowing the outer connecting rod to normally drive the inner and outer ring bodies to slide in contact, while also effectively preventing mud and sand from entering the bearing, thus ensuring the stability of the movement between the inner and outer ring bodies. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of this utility model after side sectional section;

[0019] Figure 3 This is a schematic diagram of the structure of this utility model after front cross-section;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the oil nozzle of this utility model.

[0021] In the diagram: 1. Rod end body; 11. Heat dissipation hole; 12. Arc groove; 2. Outer ring body; 21. Oil reservoir; 3. Inner ring body; 31. Microporous lubrication layer; 4. Protective cover; 41. Telescopic part; 42. O-ring one; 43. O-ring two; 5. Oil injection nozzle; 51. Oil injection pipe; 52. Buffer pipe; 53. Dispersion pipe; 54. Mounting ring; 55. Spring; 56. Valve core; 6. Mounting groove. Detailed Implementation

[0022] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-2 A spherical bearing assembly for automotive rod ends includes a rod end body 1, an outer ring body 2, and an inner ring body 3. The outer ring body 2 is fixed inside the rod end body 1, and the inner ring body 3 is installed inside the outer ring body 2. The contact surface between the inner ring body 3 and the outer ring body 2 is spherical, and the inner ring body 3 can slide relative to the outer ring body 2. Protective covers 4 are provided at both ends of the rod end body 1. Specifically, the protective covers 4 are made of rubber and include a tower-shaped telescopic part 41 and components respectively disposed on the telescopic part 41. With the O-ring 42 and O-ring 43 at both ends, after the outer rod is fixed inside the inner ring body 3, the O-ring 43 fits tightly onto the outer circumferential side wall of the outer rod. Specifically, the inner diameter of the O-ring 43 is 1-2mm smaller than the inner diameter of the inner ring body 3 to ensure a tight fit and better sealing. This allows the protective cover 4 to completely cover the outer ring body 2, the inner ring body 3, and the connection part of the outer rod, preventing dust particles from entering the gap between the outer ring body 2 and the inner ring body 3.

[0026] To facilitate the disassembly and assembly of the protective cover 4, both ends of the rod end body 1 are provided with arc grooves 12, and the O-ring 42 is tightly fitted on the outside of the arc grooves 12, making it easy to disassemble and replace the protective cover 4 relative to the rod end body 1. At the same time, during use, the arc-shaped protrusion formed on the periphery of the arc grooves 12 limits the O-ring 42, making it difficult for it to loosen.

[0027] To further improve the smoothness of movement between the outer ring 2 and the inner ring 3, an annular oil reservoir 21 is provided on the inner spherical surface of the outer ring 2, and the reservoir is filled with solid lubricant. A porous layer is formed on the outer spherical surface of the inner ring 3 by sintering metal powder, and a microporous lubricating layer 31 is formed by saturating and adsorbing lubricating oil in the porous layer through a high-temperature impregnation process, thereby achieving a dual lubrication effect.

[0028] Please see Figure 3-4 An oil injection nozzle 5 is also installed on the outside of the rod end body 1. A mounting groove 6 is radially formed inside the rod end body 1 and the outer ring body 2. Part of the oil injection nozzle 5 is embedded in the mounting groove 6. Specifically, the oil injection nozzle 5 includes an oil injection pipe 51, a buffer pipe 52, and a dispersion pipe 53 connected in sequence. The buffer pipe 52 and the dispersion pipe 53 are embedded in the mounting groove 6, while the oil injection pipe 51 remains outside the rod end body 1. The channel inside the buffer pipe 52 gradually narrows from the oil injection pipe 51 end to the dispersion pipe 53 end to facilitate oil flow. The end of the dispersion tube 53 adopts a conical structure and has several oil holes on its surface. A hollow mounting ring 54 is fixed inside the buffer tube 52. A valve core 56 is installed on the side of the mounting ring 54 near the oil injection tube 51 by a spring 55. The head end of the valve core 56 is used to close the connection between the oil injection tube 51 and the buffer tube 52. The tail end of the valve core 56 slides through the mounting ring 54 to prevent backflow of oil under normal conditions. When oil injection is required, the oil will automatically push open the valve core 56 and open the oil injection channel.

[0029] In addition, please see Figure 1-2 By providing a heat dissipation hole 11 on the outer circumferential side wall of the rod end body 1, the heat dissipation hole 11 is axially coincident with the radial direction of the rod end body 1 and the heat dissipation hole 11 is connected to the outer surface of the outer ring body 2, thereby accelerating the heat dissipation of the outer ring body 2 and preventing high heat from affecting the lubrication effect.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A knuckle bearing assembly for a rod end of a vehicle comprising a rod end body (1), an outer race body (2) and an inner race body (3), characterized in that: The rod end body (1) is provided with protective covers (4) at both ends. The protective covers (4) cover the outer ring body (2) and the inner ring body (3) to prevent dust particles from entering the gap between the outer ring body (2) and the inner ring body (3). The protective cover (4) includes a tower-shaped telescopic part (41) and O-ring one (42) and O-ring two (43) respectively provided at both ends of the telescopic part (41).

2. A knuckle bearing assembly for a rod end of an automobile according to claim 1, characterized in that: Both ends of the rod end body (1) are provided with arc grooves (12), and the O-ring (42) is tightly fitted outside the arc grooves (12).

3. A knuckle bearing assembly for a rod end of an automobile according to claim 1, characterized in that: The inner diameter of the O-ring 2 (43) is 1-2 mm smaller than the inner diameter of the inner ring body (3).

4. A spherical bearing assembly for an automotive strut end according to claim 1, characterized in that: The rod end body (1) has heat dissipation holes (11) on its outer circumferential sidewall.

5. A knuckle bearing assembly for a rod end of an automobile according to claim 1, characterized by: An annular oil storage groove (21) is provided on the inner spherical surface of the outer ring body (2).

6. A knuckle bearing assembly for a rod end of an automobile according to claim 1, characterized by: The outer spherical surface of the inner ring (3) is covered with a microporous lubricating layer (31).

7. A knuckle bearing assembly for a rod end of an automobile according to claim 1, characterized by: An oil nozzle (5) is also installed on the outside of the rod end body (1), and one end of the oil nozzle (5) is radially embedded in the mounting groove (6) of the rod end body (1) and the outer ring body (2).

8. A knuckle bearing assembly for a rod end of an automobile according to claim 7, characterized in that: The oil injection nozzle (5) includes an oil injection pipe (51), a buffer pipe (52) and a dispersion pipe (53) connected in sequence. A valve core (56) is installed in the buffer pipe (52) through a mounting ring (54) and a spring (55). The valve core (56) is used to close the connection between the oil injection pipe (51) and the buffer pipe (52).

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