Rod end knuckle bearing structure

Abstract

The utility model discloses a rod end knuckle bearing structure which comprises a ball head and a ball shell, a ball bowl groove is formed in the ball shell, the ball head is embedded in the ball bowl groove, a plurality of oil grooves are formed in the position, close to the bottom of the ball bowl groove, of the ball bowl groove, and the section of each oil groove is in an arc shape. According to the rod end joint bearing structure disclosed by the utility model, the oil groove is arranged, so that the lubricating oil can be effectively stored in the ball bowl groove, and the rod end joint bearing can be better operated.

Description

Technical Field

[0001] The utility model relates to a bearing structure, more specifically to a rod end joint bearing structure. Background Art

[0002] The swing arm ball pin is an important component of the automobile suspension system, and its performance will directly affect the steering performance and the handling stability of the whole vehicle. The existing ball head bearing structure includes a ball head and a ball shell. A connecting rod is fixed at the ball head and the ball shell to connect with external components, and then the ball head is arranged in the ball shell. The ball head is restricted to rotate in the ball shell to achieve the effect of a multi-directional bearing. For example, in the prior art, the utility model patent with patent number 201120180061.2 and the name of a dust cover for a swing arm ball pin of an automobile is disclosed. The ball head of the ball pin is installed into the ball bowl seat, and grease is arranged between the ball head of the ball pin and the ball bowl seat to ensure the lubrication between the ball head of the ball pin and the ball bowl seat. However, since the gap between the ball head and the ball bowl seat is small, the grease is easily discharged from the gap during use, which leads to the problem of poor lubrication effect between the ball head and the ball bowl seat. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model aims to provide a rod end joint bearing structure with better lubrication effect.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rod end joint bearing structure, including a ball head and a ball shell, the ball shell is provided with a ball bowl groove, the ball head is embedded in the ball bowl groove, and it is characterized in that: the ball bowl groove is provided with a plurality of oil grooves near its bottom, and the cross-section of the oil groove is arc-shaped.

[0005] As a further improvement of the utility model, an annular groove is provided near the groove opening of the ball bowl groove, an inner retaining ring is embedded in the annular groove, the inner retaining ring is sleeved on the ball head and abuts against the groove wall of the groove and the ball head to restrict the ball head in the ball bowl groove.

[0006] As a further improvement of the utility model, a wedge-shaped surface is provided on the groove wall on the upper side of the groove opening of the slot, and the wedge-shaped surface extends from the middle of the groove wall toward the groove opening of the slot and is arranged to be inclined upward.

[0007] As a further improvement of the utility model, an outer clamping rod is provided at a position above the ball bowl groove relative to the clamping slot. The outer clamping rod spans above the clamping slot and abuts against the side of the ball head to cooperate with the inner clamping ring to restrict the ball head in the ball bowl groove.

[0008] As a further improvement of the utility model, the ball shell is fixed with a shell rod, and an external slot is provided at the position where the shell rod is connected to the ball shell. One end of the external slot passes through the ball shell and a fixed connecting ring is fixed to the end, and the connecting ring is sleeved on the external slot.

[0009] The beneficial effect of the utility model is that, by arranging the ball head and the ball shell, a structure of a ball head bearing can be simply and effectively realized for use in an automobile suspension system, and by arranging the ball bowl groove, a space for the ball head to move can be simply and effectively realized, and by providing an oil groove in the ball bowl groove, the oil groove can be used to store lubricating oil, thereby avoiding the problem of poor lubrication effect caused by the discharge of grease between the ball head and the ball bowl groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the rod end joint bearing structure of the utility model. DETAILED DESCRIPTION

[0011] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0012] Reference Figure 1 As shown, a rod end joint bearing structure of the present embodiment includes a ball head 1 and a ball shell 2, a ball bowl groove 3 is provided on the ball shell 2, and the ball head 1 is embedded in the ball bowl groove 3, and is characterized in that: the ball bowl groove 3 is provided with a plurality of oil grooves 4 near the bottom thereof, and the cross-section of the oil groove 4 is arc-shaped. In the process of using the joint bearing of the present embodiment, it is only necessary to connect the ball head 1 and the ball shell 2 to the external component. In the process of operation of the joint bearing, the ball head 1 will rotate in the ball bowl groove 3, and the lubricating oil between the ball head 1 and the ball bowl groove 3 can be accommodated by the provision of the oil groove 4. Compared with the method in the prior art, the lubricating oil between the ball head 1 and the ball bowl groove 3 can be effectively maintained, thereby avoiding the problem of poor lubrication effect between the ball head 1 and the ball bowl groove 3 due to the discharge of grease in the prior art.

[0013] As an improved specific implementation method, the ball bowl groove 3 is provided with an annular groove 31 near its groove mouth, and an inner snap ring 5 is embedded in the annular groove 31. The inner snap ring 5 is sleeved on the ball head 1 and abuts against the groove wall of the groove 31 and the ball head 1 to restrict the ball head 1 in the ball bowl groove 3. By setting the inner snap ring 5, the effect of restricting the movement of the ball head 1 in the ball bowl groove 3 can be simply and effectively achieved, and the contact surface between the ball head 1 and the ball head 1 is as small as possible, thereby effectively ensuring the flexibility between the ball head 1 and the ball bowl groove 3.

[0014] As an improved specific implementation method, a wedge-shaped surface is provided on the groove wall on the upper side of the groove opening of the groove 31, and the wedge-shaped surface extends from the middle of the groove wall toward the groove opening of the groove 31 and is inclined upward. Through the setting of the wedge-shaped surface, a guiding surface structure for guiding the inner retaining ring 5 to slide in can be simply and effectively realized, thereby facilitating the subsequent replacement of the inner retaining ring 5 after the inner retaining ring 5 is worn.

[0015] As an improved specific implementation, the ball bowl groove 3 is provided with an external clamping rod 6 at a position above the clamping groove 31. The external clamping rod 6 spans above the clamping groove 31 and abuts against the side of the ball head 1 to cooperate with the internal clamping ring 5 to restrict the ball head 1 in the ball bowl groove 3. Through the setting of the external clamping rod 6, it can be combined with the internal clamping ring 5 to form a double clamping structure of the ball head 1, which can further increase the firmness of the joint bearing.

[0016] As an improved specific embodiment, the ball shell 2 is fixed with a shell rod 21, and an outer slot 22 is opened at the position where the shell rod 21 is connected to the ball shell 2. One end of the outer slot 6 passes through the ball shell 2 and is fixed with a connecting ring 61 at the end. The connecting ring 61 is sleeved on the outer slot 22. Through the setting of the connecting ring 61, the outer slot 22 can be effectively connected to the shell rod 21, further increasing the firmness of the outer slot 6.

[0017] In summary, the rod end joint bearing structure of this embodiment can simply and effectively utilize the oil groove 4 to store lubricating oil by opening the oil groove 4 in the ball bowl groove 3, and when the lubricating oil is missing between the ball head 1 and the ball bowl groove 3, the lubricating oil attached therein can be better covered on the surface of the ball head 1 to maintain the lubrication between the ball head 1 and the ball bowl groove 3.

[0018] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A rod end joint bearing structure, comprising a ball head (1) and a ball shell (2), wherein the ball shell (2) is provided with a ball bowl groove (3), and the ball head (1) is embedded in the ball bowl groove (3), characterized in that: The ball bowl groove (3) is provided with a plurality of oil grooves (4) near its bottom, and the cross section of the oil groove (4) is in the shape of an arc. The ball bowl groove (3) is provided with an annular clamping groove (31) near its groove opening, and an inner clamping ring (5) is embedded in the annular clamping groove (31). The inner clamping ring (5) is sleeved on the ball head (1) and abuts against the groove wall of the clamping groove (31) and the ball head (1) to restrict the ball head (1) in the ball bowl groove (3).

2. The rod end joint bearing structure according to claim 1, characterized in that: A wedge-shaped surface is provided on the groove wall on the upper side of the groove opening of the clamping groove (31); the wedge-shaped surface extends from the middle of the groove wall toward the groove opening of the clamping groove (31) and is arranged to be inclined upward.

3. The rod end joint bearing structure according to claim 2, characterized in that: An outer clamping rod (6) is provided at a position above the ball bowl groove (3) relative to the clamping groove (31); the outer clamping rod (6) spans above the clamping groove (31) and abuts against a side surface of the ball head (1) to cooperate with the inner clamping ring (5) to restrict the ball head (1) within the ball bowl groove (3).

4. The rod end joint bearing structure according to claim 3, characterized in that: The ball shell (2) is fixed with a shell rod (21), and an outer slot (22) is provided at a position where the shell rod (21) is connected to the ball shell (2). One end of the outer slot (6) passes through the ball shell (2) and a connecting ring (61) is fixed to the end. The connecting ring (61) is sleeved on the outer slot (22).

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