Hub bearing retainer

Abstract

The utility model discloses a hub bearing retainer which comprises a full-wrapping part, a half-wrapping part and isolation parts arranged between the full-wrapping part and the half-wrapping part, a pocket hole used for containing a roller is formed between every two adjacent isolation parts, the full-wrapping part, the half-wrapping part and the isolation parts are combined to form a retainer body, an input port is formed in each isolation part, and the half-wrapping part and the isolation parts are arranged on the retainer body. According to the retainer, lubricating grease on the surfaces of the rollers can be stored and recycled, the lubricating effect is good, the circulation mode is simple, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of cages, in particular to a cage for a wheel hub bearing. Background Art

[0002] The cage of a wheel hub bearing is a key component in a wheel hub bearing unit of an automobile. Its design and manufacturing technology directly affect the performance of the bearing. With the rapid development of the automobile industry, the performance requirements for wheel hub bearing units are getting higher and higher, including rotational accuracy, reliability, assemblability, and maintainability. There is a conventional cage for a wheel hub bearing with a semi - enclosed structure. The structure of this cage can reduce the friction between the rollers and the cage during rolling, improving the operating speed of the bearing. However, since the rolling speed of the rollers in this cage is relatively high, the grease on the surface of the rollers is consumed quickly. The existing cage cannot store a large amount of grease, cannot collect and utilize the excess grease on the surface of the rollers, and cannot recycle it. As a result, the surface of the rollers is prone to lack of grease. Content of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the utility model provides a cage for a wheel hub bearing. This cage can store and recycle the grease on the surface of the rollers, has good lubrication effect, simple circulation method, and improves the service life.

[0004] To achieve the above - mentioned purpose, the utility model provides a cage for a wheel hub bearing, which includes a fully - enclosed part, a semi - enclosed part, and a separating part arranged between the fully - enclosed part and the semi - enclosed part. There are pocket holes for accommodating rollers arranged between adjacent separating parts. The fully - enclosed part, the semi - enclosed part, and the separating part are combined to form a cage body. An input port is arranged on the separating part, and an output port corresponding to the position of the roller is arranged on the pocket hole. The output port is communicated with the input ports on its adjacent two sides.

[0005] The effects that can be produced by adopting the above technical solution are as follows: By using the fully - enclosed part, the semi - enclosed part, and the separating part arranged between them, and having pocket holes for accommodating rollers between adjacent separating parts, the combination of these parts forms a cage body. An input port is arranged on the separating part, and the pocket holes are provided with output ports according to the position of the rollers. These output ports are communicated with the input ports on their adjacent two sides, thus realizing the effective guidance and transmission of the rollers. Since those skilled in the art will attach grease to the surface of the rollers before operation to reduce the friction generated during rolling, when the rollers are rolling, the separating part can scrape off part of the grease on the surface of the rollers and make it flow to the inlet, and then flow out from the output port and attach to the surface of the rollers again. It is convenient to collect and store the grease, and the self - circulation of the grease on the cage can be realized. The structure is simple and the operation is convenient.

[0006] The present utility model is further provided with: an arc-shaped guiding wall is circumferentially arranged corresponding to the outer periphery of the input port, the input port is placed at the bottom of the arc-shaped guiding wall, and the opening of the arc-shaped guiding wall is inclined and gradually lowered towards its bottom.

[0007] The effects that can be produced by adopting the above technical solution are: the adoption of the guiding wall can more smoothly guide the excess grease on the surface of the roller into the input port, and the circumferentially arranged guiding wall can form a notch with a smaller volume for accommodating grease, which can accommodate a small amount of grease to buffer the grease when it enters the input port and slowly enter the input port, making the flow of the grease smoother.

[0008] The present utility model is further provided with: the pocket hole is an arc-shaped pocket hole, a conduit is connected between the output port and the input port, and the conduit is arranged along the outer periphery of the arc-shaped pocket hole.

[0009] The effects that can be produced by adopting the above technical solution are: this structure can optimize the flow path of the grease in the conduit, reduce the direct impact of the grease on the pipe wall, improve the efficiency and stability of the grease delivery. At the same time, the uniform distribution of the flow guiding walls helps to maintain the uniformity of the grease speed, ensure the smooth flow of the grease in the conduit, thereby improving the overall transmission effect, and the grease is not easily blocked in the conduit, facilitating the maintenance and cleaning of the conduit.

[0010] The present utility model is further provided with: a plurality of flow guiding walls are uniformly arranged along the length direction of the inner wall of the conduit from the input port to the output port.

[0011] The effects that can be produced by adopting the above technical solution are: adopting this structure can ensure that the grease obtains a more uniform and stable flow rate when passing through the conduit, improve the efficiency of the grease delivery. At the same time, the uniformly arranged flow guiding walls also help to reduce the impact and wear of the grease on the inner wall of the conduit, extend the service life of the conduit. In addition, this structure is simple and effective, facilitating manufacturing and maintenance.

[0012] The present utility model is further provided with: an arc-shaped contact surface is arranged corresponding to the positions of the rollers on both sides of the isolation part.

[0013] The effects that can be produced by adopting the above technical solution are: adopting the arrangement of the arc-shaped contact surface can better adapt to the shape of the roller surface when the roller rolls, not easily affect the rolling of the roller, and the structure is simple. Description of the Drawings

[0014] Figure 1 is a perspective view of an embodiment of the present utility model;

[0015] Figure 2 is a cross-sectional view of the isolation part of an embodiment of the present utility model;

[0016] Figure 3 This is a cross-sectional view of the pocket hole in the embodiment of the present utility model. Detailed implementation manners

[0017] An embodiment of a cage for a hub bearing of the present utility model is shown in the figure. It includes a fully enclosed part 1, a semi-enclosed part 2, and a separating part 3 arranged between the fully enclosed part 1 and the semi-enclosed part 2. A pocket 4 for accommodating rollers is arranged between two adjacent separating parts 3. The fully enclosed part 1, the semi-enclosed part 2, and the separating part 3 are combined to form a cage body. An input port 5 is arranged on the separating part 3. An output port 6 is arranged at the position corresponding to the roller in the pocket 4. The output port 6 is communicated with the input ports 5 on its adjacent two sides. By using the fully enclosed part 1, the semi-enclosed part 2, and the separating part 3 arranged between them, and there are pockets 4 for accommodating rollers between adjacent separating parts 3. The combination of these parts constitutes the cage body. Among them, an input port 5 is arranged on the separating part 3, and the pocket 4 is provided with an output port 6 according to the position of the roller. These output ports 6 are communicated with the input ports 5 on their adjacent two sides, thus realizing the effective guidance and transmission of the rollers. Since those skilled in the art will attach grease to the surface of the rollers before operation to reduce the friction generated when the rollers roll, when the rollers roll, the separating part 3 can scrape off part of the grease on the surface of the rollers and make it flow to the inlet, and then flow out from the output port 6 and attach to the surface of the rollers again. It is convenient to collect and store the grease, and the self-circulation of the grease on the cage can be realized. The structure is simple and the operation is convenient; an arc-shaped guiding wall 7 is circumferentially arranged on the separating part 3 corresponding to the outer periphery of the input port 5. The input port 5 is placed at the bottom of the arc-shaped guiding wall 7. The opening of the arc-shaped guiding wall 7 is inclined and gradually lowered to its bottom. Using the guiding wall 7 can more smoothly guide the excess grease on the surface of the rollers into the input port 5. And the circumferentially arranged guiding wall 7 can form a notch with a smaller volume for accommodating grease, which can accommodate a small amount of grease so that the grease can be buffered when entering the input port 5 and slowly enter the input port 5, making the flow of the grease smoother; the pocket 4 is an arc-shaped pocket 4. A conduit 8 is arranged in a communicating way between the output port 6 and the input port 5. The conduit 8 is arranged along the outer periphery of the arc-shaped pocket 4. This structure can optimize the flow path of the grease in the conduit 8, reduce the direct impact of the grease on the pipe wall, improve the efficiency and stability of the grease delivery. At the same time, the uniform distribution of the guiding walls 9 helps to maintain the uniformity of the grease speed and ensure the smooth flow of the grease in the conduit 8, thus improving the overall transmission effect. The grease is not easily blocked in the conduit 8, which is convenient for the maintenance and cleaning of the conduit 8; a plurality of guiding walls 9 are evenly arranged along the length direction of the inner wall of the conduit 8 from the input port 5 to the output port 6. Using this structure can ensure that the grease obtains a more uniform and stable flow rate when passing through the conduit 8, improve the efficiency of the grease delivery. At the same time, the evenly distributed guiding walls 9 also help to reduce the impact and wear of the grease on the inner wall of the conduit 8 and extend the service life of the conduit 8.In addition, this structure is simple and effective, facilitating manufacturing and maintenance; the isolation part 3 is provided with an arc-shaped contact surface 10 corresponding to the positions of the rollers on both sides thereof. By providing the arc-shaped contact surface 10, it can better adapt to the surface shape of the rollers when the rollers roll, and it is not easy to affect the rolling of the rollers, and the structure is simple. When implementing this solution, those skilled in the art first place the rollers corresponding to each pocket 4, and one roller is placed in each pocket 4. When the rollers roll, the excess grease on their surfaces can be scraped off by the isolation part 3. When the grease scraped off by the isolation part 3 accumulates, the excess grease can flow to the input port 5. The guiding wall 7 recessedly provided on the outer periphery of the input port 5 can store a small amount of grease, and the grease is not easy to flow out from the recess. When the grease enters the input port 5, the grease can flow to the output port 6 according to the conduit 8. The guiding wall 9 can make the grease flow more smoothly in the conduit 8 and is not easy to be blocked in the conduit 8. The grease flowing from the conduit 8 to the output port 6 can overflow at the output port 6 and adhere to the surface of the rollers through the rolling of the rollers. The rollers can drive the excess grease to achieve self-circulation on the cage through rolling. The structure is simple, the circulation effect is good, and the operation is convenient.

[0018] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A wheel hub bearing retainer, comprising a full-enclosed portion, a half-enclosed portion and an isolating portion arranged between the full-enclosed portion and the half-enclosed portion, a pocket hole for accommodating a roller is arranged between two adjacent isolating portions, the full-enclosed portion, the half-enclosed portion and the isolating portion are combined to form a frame body, characterized in that: The isolating portion is provided with an input port, and the pocket hole is provided with an output port at a position corresponding to the roller, and the output port is communicated with the input ports on two adjacent sides thereof.

2. A wheel hub bearing retainer according to claim 1, characterized in that: The isolating part is provided with an arc-shaped guide wall in the circumferential direction of the outer circumference of the input port, the input port is located at the bottom of the arc-shaped guide wall, and the arc-shaped guide wall is arranged to be inclined and gradually lowered from the opening to the bottom thereof.

3. A wheel hub bearing retainer according to claim 1, characterized in that: The pocket hole is an arc-shaped pocket hole, and a conduit is provided between the output port and the input port, and the conduit is provided along the outer circumference of the arc-shaped pocket hole.

4. A wheel hub bearing retainer according to claim 3, characterized in that: The inner wall of the conduit is evenly provided with a plurality of flow guide walls along the length direction thereof from the input port to the output port.

5. The wheel hub bearing retainer according to claim 1, characterized in that: The isolation portion is provided with an arc-shaped contact surface corresponding to the roller positions on both sides thereof.

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