Joint fork bearing lubricating structure

Abstract

The utility model relates to a yoke bearing lubrication structure which comprises a yoke body part and a U-shaped yoke head part connected with the yoke body part, a first through hole penetrating through the yoke body part and the yoke head part is formed in the yoke body part and the yoke head part, an installation part is arranged at the bottom of a U-shaped shell and inserted into the first through hole, and the outer side of the U-shaped shell is attached to the inner side of the yoke head part. The end faces of the two ends of the U-shaped shell are each provided with a concave structure, a wheel is rotationally arranged in each concave structure, an elastic layer and a first friction plate are sequentially arranged on the side face of each wheel, the first friction plates make contact with and abut against the side faces of the concave structures, a mounting hole is formed in the head of the joint fork, and the universal joint pin is mounted in the mounting hole through a bearing. A second through hole communicated with the interior of the bearing is formed in the outer side face of the bearing, a third through hole is formed in the side face of the side, attached to the joint fork head, of the U-shaped shell, a channel communicated with the second through hole and the third through hole is formed in the joint fork head, and the joint fork bearing can be lubricated in real time in the running process.

Description

Technical Field

[0001] The utility model relates to the technical field of knuckle forks, and particularly relates to a lubricating structure for a knuckle fork bearing. Background Art

[0002] Generally, the connection between two drive shafts on an automobile is achieved by installing knuckle forks at the ends of the two drive shafts. The two knuckle forks are connected by a cross shaft, and bearings are arranged between the cross shaft and the knuckle forks. During operation, there will be relative rotation between the cross shaft and the knuckle forks. During long-term operation, the lubrication of the bearings between the cross shaft and the knuckle forks will decline, resulting in serious wear of the bearings. Content of the Utility Model

[0003] The utility model provides a lubricating structure for a knuckle fork bearing to solve the above technical deficiencies, and can lubricate the knuckle fork bearing in real time during operation.

[0004] The utility model discloses a lubricating structure for a knuckle fork bearing, which includes a knuckle fork main body part and a knuckle fork head that is integrally U-shaped. The knuckle fork main body part extends along a first direction and is connected to the knuckle fork head. A first through hole is arranged on the knuckle fork main body part and the knuckle fork head. The first through hole penetrates through the knuckle fork main body part and the knuckle fork head along the first direction. It also includes a U-shaped shell with a hollow interior. The interior of the U-shaped shell is filled with a sponge saturated with lubricating oil. An installation part is arranged at the bottom of the U-shaped shell, and the installation part is inserted into the first through hole for fixation. The outer side of the U-shaped shell is attached to the inner side of the U-shaped knuckle fork head. Concave structures are arranged on the end faces of both ends of the U-shaped shell far from the installation part. Wheels are rotatably arranged in the concave structures. Part of the wheels is located outside the concave structures. An elastic layer is arranged on the side of the wheels located in the concave structures. A first friction plate is arranged on the elastic layer, and the first friction plate contacts and presses against the side of the concave structure. An installation hole is arranged at the end of the U-shaped knuckle fork head far from the knuckle fork main body part. The cross shaft is installed in the installation hole through a bearing. The wheels contact and press against the side of the cross shaft. A second through hole communicating with the inside of the bearing is arranged on the outer side of the bearing. A third through hole is arranged on the side of the U-shaped shell attached to the knuckle fork head. A channel communicating the second through hole and the third through hole is arranged on the knuckle fork head.

[0005] During use, the cross shaft will swing. The swing of the cross shaft will drive the wheels to rotate reciprocally, so that friction occurs between the first friction plate on the wheels and the concave structure. The heat generated by the friction heats the lubricating oil in the sponge, thereby accelerating the volatilization of the lubricating oil. The volatilized lubricating oil enters the inside of the bearing through the third through hole, the channel and the second through hole, contacts the relatively cold bearing and condenses inside the bearing, so as to lubricate the bearing in real time during operation.

[0006] To prevent the side of the concave structure from being worn through, a second friction plate is provided on the side of the concave structure. The second friction plate contacts and presses against the first friction plate. Since the first friction plate and the second friction plate are more wear-resistant, their service life is also increased.

[0007] A lubrication structure of a knuckle bearing obtained by the present utility model has the beneficial effect that the rotation of the wheel is driven by the swing of the cross shaft. The rotation of the wheel causes the first friction plate and the second friction plate to generate heat by friction, thereby accelerating the volatilization of the lubricating oil in the sponge. The volatilized lubricating oil enters the bearing interior through the second through hole, the channel, and the third through hole for lubrication. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 is a schematic structural diagram of Embodiment 1 of the present utility model;

[0009] Figure 2 is a cross-sectional view of Embodiment 1 of the present utility model;

[0010] Figure 3 In Embodiment 1 of the present utility model Figure 2 is a partial enlarged view. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0011] To further elaborate on the technical means and effects adopted by the present utility model to achieve the predetermined utility model purpose, the following describes in detail the specific embodiments, structures, features, and effects of the present utility model with reference to the accompanying drawings and preferred embodiments.

[0012] Embodiment 1:

[0013] As Figure 1 、 2As shown in FIGS. 3, the utility model discloses a lubrication structure for a knuckle fork bearing, which includes a knuckle fork main body 1 and a knuckle fork head 2 integrally in a U shape. The knuckle fork main body 1 extends along a first direction and is connected to the knuckle fork head 2. A first through hole 12 is provided on the knuckle fork main body 1 and the knuckle fork head 2. The first through hole 12 penetrates through the knuckle fork main body 1 and the knuckle fork head 2 along the first direction. It further includes a U-shaped housing 3 with a hollow interior. A sponge 7 filled with lubricating oil is filled inside the U-shaped housing 3. An installation part 6 is provided at the bottom of the U-shaped housing 3. The installation part 6 is inserted and fixed in the first through hole 12. The outer side of the U-shaped housing 3 is attached to the inner side of the U-shaped knuckle fork head 2. Concave structures 16 are provided on the end faces of both ends of the U-shaped housing 3 far from the installation part 6. Wheels 4 are rotatably arranged inside the concave structures 16. Part of the wheels 4 is located outside the concave structures 16. An elastic layer 13 is provided on the side surface of the wheels 4 located in the concave structures 16. A first friction plate 14 is provided on the elastic layer 13. A second friction plate 15 is provided on the side surface of the concave structure 16. The second friction plate 15 contacts and presses against the first friction plate 14. An installation hole is provided at the end of the U-shaped knuckle fork head 2 far from the knuckle fork main body 1. A cross shaft 5 is installed in the installation hole through a bearing 8. The wheels 4 contact and press against the side surface of the cross shaft 5. A second through hole 9 communicating with the inside of the bearing 8 is provided on the outer side surface of the bearing 8. A third through hole 11 is provided on the side surface of the U-shaped housing 3 attached to the knuckle fork head 2. A passage 10 communicating the second through hole 9 and the third through hole 11 is provided on the knuckle fork head 2.

[0014] During use, the cross shaft 5 will swing. The swing of the cross shaft 5 will drive the wheels 4 to rotate reciprocally, so that friction occurs between the first friction plate 14 and the second friction plate 15 on the wheels 4. The heat generated by the friction heats the lubricating oil in the sponge 7, thereby accelerating the volatilization of the lubricating oil. The volatilized lubricating oil enters the inside of the bearing 8 through the third through hole 11, the passage 10 and the second through hole 9, contacts the relatively cold bearing 8 and thus condenses inside the bearing 8, so as to lubricate the bearing 8 in real time during operation.

[0015] In the description of the present application, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more unless otherwise specifically defined.

[0016] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected" and "coupled" shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0017] In the present application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0018] The above are only the preferred embodiments of the present invention and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the equivalent embodiments by using the disclosed technical content within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A yoke bearing lubrication structure, comprising a yoke body (1) and a yoke head (2) which is generally U-shaped, wherein the yoke body (1) extends along a first direction and is connected to the yoke head (2), and is characterized in that: A through hole (12) is provided on the yoke body (1) and the yoke head (2), and the through hole (12) penetrates the yoke body (1) and the yoke head (2) along the first direction, and also includes a U-shaped shell (3) with a hollow interior, the interior of the U-shaped shell (3) is filled with a sponge (7) soaked with lubricating oil, a mounting portion (6) is provided at the bottom of the U-shaped shell (3), the mounting portion (6) is inserted and fixed in the through hole (12), the outer side of the U-shaped shell (3) is in contact with the inner side of the U-shaped yoke head (2), and the end surfaces of the two ends of the U-shaped shell (3) away from the mounting portion (6) are both provided with a concave structure (16), a wheel (4) is rotatably provided in the concave structure (16), and a portion of the wheel (4) is located outside the concave structure (16). An elastic layer (13) is provided on the side of the wheel (4) in the concave structure (16), and a first friction plate (14) is provided on the elastic layer (13). The first friction plate (14) contacts and presses against the side of the concave structure (16). A mounting hole is provided at the end of the U-shaped yoke head (2) away from the yoke body (1). The cross shaft (5) is installed in the mounting hole through a bearing (8). The wheel (4) contacts and presses against the side of the cross shaft (5). A second through hole (9) connected to the inside of the bearing (8) is provided on the outer surface of the bearing (8). A third through hole (11) is provided on the side of the U-shaped shell (3) that is in contact with the yoke head (2). A channel (10) connecting the second through hole (9) and the third through hole (11) is provided on the yoke head (2).

2. A yoke bearing lubrication structure according to claim 1, characterized in that: A second friction plate (15) is arranged on the side surface of the inner concave structure (16), and the second friction plate (15) contacts and presses against the first friction plate (14).

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