High-precision retainer structure of hub unit

Abstract

The utility model discloses a high-precision retainer structure of a hub unit, which relates to the technical field of retainers and comprises a high-precision retainer body and a connecting heat dissipation structure arranged on the outer wall of the high-precision retainer body and used for heat dissipation and oil guide components of the high-precision retainer body. The high-precision retainer structure of the hub unit is arranged at the bottom end of the connecting heat dissipation structure and used for guiding in lubricating liquid, the high-precision retainer structure of the hub unit is provided with the connecting heat dissipation structure, and in the vehicle running process, the hub unit can generate a large amount of heat due to friction and loads. The connecting heat dissipation mechanism can rapidly dissipate heat, reduce the temperature of the hub unit and prevent part damage and performance reduction caused by overheating, meanwhile, the connecting heat dissipation structure dissipates heat through a plurality of heat dissipation holes, it can be ensured that the heat is evenly distributed, local overheating is avoided, and the service life of the hub unit is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of cages, in particular to a high-precision cage structure of a hub unit. Background Art

[0002] The high-precision cage of the hub unit is a component used in automobile hub bearing units. Its main function is to position and fix the rollers between the inner and outer rings of the hub bearing to ensure the normal operation and high-precision performance of the bearing.

[0003] Authorization publication number CN103267065A discloses a novel angular contact ball bearing retainer structure, comprising a retainer body and a plurality of pockets evenly distributed circumferentially within the retainer body for guiding rolling elements. Each pocket has a boss disposed on the arcuate inner wall surface, circumferentially extending the retainer body. Within each pocket, the bosses are symmetrical about the pocket's center diameter, and the distance between two symmetrical bosses within each pocket is less than the pocket's diameter. This approach overcomes retainer operational instability, ensures reliable bearing lubrication, and reduces bearing noise and extends bearing life.

[0004] As shown in the aforementioned device, the high-precision cage structure of the existing hub unit overcomes cage operational instability, ensures reliable bearing lubrication, and thus reduces bearing noise and extends bearing life. However, during hub unit operation, heat is generated due to friction and other factors. Without a heat dissipation structure, this heat cannot be effectively dissipated, causing the cage structure to heat up. High temperatures can alter the properties of the cage material, such as reducing strength and hardness, thereby affecting the cage's service life and reliability. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a high-precision cage structure of a hub unit, which solves the problems of the prior art.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A high-precision cage structure of a hub unit, including a high-precision cage body, and also including:

[0007] A connecting heat dissipation structure is provided on the outer wall of the high-precision holder body and is used for dissipating heat from the high-precision holder body;

[0008] The oil guide assembly is provided at the bottom end connected to the heat dissipation structure and is used for introducing lubricating liquid;

[0009] The connection and heat dissipation structure includes a heat dissipation connection ring plate, which is movably connected to the outer wall of the high-precision retaining frame body. The outer wall of the heat dissipation connection ring plate is provided with a heat dissipation hole. The outer wall of the heat dissipation connection ring plate is fixedly installed with a ramp ring plate. The bottom end of the heat dissipation connection ring plate is fixedly installed with a clamping column, and one end of the clamping column is provided with a clamping assembly.

[0010] Preferably, the clamping assembly includes a heat dissipation clamping ring, the outer wall of the heat dissipation clamping ring is provided with a clamping hole, the heat dissipation clamping ring is connected to the clamping column through the clamping hole, and the outer wall of the heat dissipation clamping ring is provided with a connecting groove.

[0011] Preferably, the oil guide assembly includes a circular ring plate, which is movably connected to the outer wall of the high-precision retaining frame body, the outer wall of the circular ring plate is provided with an oil guide groove, the outer wall of the oil guide groove is provided with an oil drop hole, and the bottom end of the circular ring plate is fixedly installed with an oil delivery plate, and the outer wall of the oil delivery plate is provided with a slide groove.

[0012] Preferably, the outer wall of the high-precision retainer body is provided with pockets for placing balls or rollers, and the outer wall of the pockets is provided with expansion grooves for storing lubricating fluid.

[0013] Preferably, a slide is fixedly mounted on the outer wall of the high-precision retainer body for slidingly connecting to a slide groove in the oil guide assembly.

[0014] Preferably, a connecting circular groove plate is fixedly mounted on the outer wall of the high-precision holder body, which is used to connect the limit of the heat dissipation structure and the connection of the matching snap-fit ​​assembly.

[0015] The utility model provides a high-precision cage structure for a hub unit. Compared with the prior art, it has the following advantages:

[0016] 1. The wheel hub unit's high-precision cage structure is equipped with a heat dissipation mechanism. During vehicle operation, the wheel hub unit generates significant heat due to friction and load. The heat dissipation mechanism quickly dissipates this heat, reducing the wheel hub unit's temperature and preventing component damage and performance degradation caused by overheating. The heat dissipation mechanism also dissipates heat through multiple heat dissipation holes, ensuring even heat distribution, preventing localized overheating and extending the wheel hub unit's service life.

[0017] 2. The high-precision cage structure of the hub unit is equipped with an oil guide assembly, which can accurately transport lubricating oil to the parts that need lubrication, such as between the balls and the raceways, between the cage and the balls, etc., thereby reducing friction and wear and improving the operating efficiency and service life of the hub unit. At the same time, in the high-precision cage structure, the oil guide assembly ensures the uniform distribution of the lubricating oil film, effectively reduces the friction coefficient, makes the hub unit more stable at high-speed operation, and reduces energy loss and heat generation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is an exploded view of the overall structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the connection and heat dissipation structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the connection components of the present utility model;

[0022] Figure 5 This is a schematic diagram of the oil guide assembly of the present utility model.

[0023] In the figure: 1. Retainer body; 2. Connecting heat dissipation structure; 21. Heat dissipation connecting ring plate; 22. Heat dissipation hole; 23. Slope ring plate; 24. Snap-in column; 25. Snap-in assembly; 251. Heat dissipation snap-in ring; 252. Snap-in hole; 253. Connecting groove; 3. Oil guide assembly; 31. Circular ring plate; 32. Oil guide groove; 33. Oil drop hole; 34. Oil delivery plate; 35. Slide groove; 4. Pocket hole; 5. Expansion groove; 6. Connecting circular groove plate; 7. Slide plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See Figure 1-Figure 5 , the utility model provides the following two technical solutions:

[0026] First embodiment: A high-precision cage structure of a hub unit, comprising a high-precision cage body 1, and further comprising:

[0027] A connecting heat dissipation structure 2 is provided on the outer wall of the high-precision holder body 1 and is used for dissipating heat from the high-precision holder body 1;

[0028] The outer wall of the high-precision cage body 1 is provided with a pocket 4 for placing balls or rollers, and the outer wall of the pocket 4 is provided with an expansion groove 5 for storing lubricating fluid.

[0029] A slide plate 7 is fixedly mounted on the outer wall of the high-precision retainer body 1 and is used for sliding connection to the slide groove 35 in the oil guide assembly 3 .

[0030] A connecting circular groove plate 6 is fixedly mounted on the outer wall of the high-precision holder body 1 , and is used to connect the limiting portion of the heat dissipation structure 2 with the matching snap-fit ​​assembly 25 .

[0031] The oil guide assembly 3 is provided at the bottom end connected to the heat dissipation structure 2 and is used for introducing lubricating liquid;

[0032] The heat dissipation connection structure 2 includes a heat dissipation connection ring plate 21, which is movably connected to the outer wall of the high-precision retaining frame body 1. The outer wall of the heat dissipation connection ring plate 21 is provided with a heat dissipation hole 22. The outer wall of the heat dissipation connection ring plate 21 is fixedly installed with a slope ring plate 23. The bottom end of the heat dissipation connection ring plate 21 is fixedly installed with a clamping column 24, and one end of the clamping column 24 is provided with a clamping component 25.

[0033] The clamping assembly 25 includes a heat dissipation clamping ring 251 . A clamping hole 252 is defined on the outer wall of the heat dissipation clamping ring 251 . The heat dissipation clamping ring 251 is connected to the clamping post 24 via the clamping hole 252 . A connection groove 253 is defined on the outer wall of the heat dissipation clamping ring 251 .

[0034] The wheel hub unit's high-precision cage structure is equipped with a heat dissipation connection structure 2. During vehicle operation, the wheel hub unit generates significant heat due to friction and load. This heat dissipation connection mechanism quickly dissipates this heat, reducing the wheel hub unit's temperature and preventing component damage and performance degradation caused by overheating. The heat dissipation connection structure 2 also dissipates heat through multiple heat dissipation holes 22, ensuring even heat distribution, preventing localized overheating, and extending the wheel hub unit's service life.

[0035] The second embodiment differs from the first embodiment mainly in that the oil guide assembly 3 includes a circular ring plate 31, which is movably connected to the outer wall of the high-precision retainer body 1, and an oil guide groove 32 is provided on the outer wall of the circular ring plate 31, and an oil drop hole 33 is provided on the outer wall of the oil guide groove 32. An oil delivery plate 34 is fixedly installed on the bottom end of the circular ring plate 31, and a slide groove 35 is provided on the outer wall of the oil delivery plate 34.

[0036] The high-precision cage structure of the hub unit is provided with an oil guide assembly 3, through which the lubricating oil can be accurately delivered to the parts that need lubrication, such as between the balls and the raceways, between the cage and the balls, etc., thereby reducing friction and wear and improving the operating efficiency and service life of the hub unit. At the same time, in the high-precision cage structure, the oil guide assembly 3 ensures the uniform distribution of the lubricating oil film, effectively reduces the friction coefficient, makes the hub unit more stable when running at high speed, and reduces energy loss and heat generation.

[0037] At the same time, the contents not described in detail in this specification belong to the existing technology known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used.

[0038] When the equipment needs to connect the heat dissipation structure 2 and the oil guide component 3 to be installed on the outer wall of the high-precision holder body 1, first put the ball or roller inside the pocket 4, and then align the slide groove 35 of each oil delivery plate 34 with the slide plate 7 for insertion. When the circular ring plate 31 is inserted and abuts the high-precision holder body 1, align the various clamping columns 24 connecting the heat dissipation structure 2 with the connecting circular groove plate 6 for insertion. After the insertion is completed, align the various clamping holes 252 of the clamping component 25 with the clamping column 24. At this time, the connecting groove 253 is aligned with one end of the high-precision holder body 1, and the clamping holes 252 are connected to the clamping column 24. Then, the connecting groove 253 is tightly attached to the outer wall of the high-precision retaining frame body 1 to complete the installation. When the equipment generates heat during operation, the multiple heat dissipation holes 22 opened through the heat dissipation connecting ring plate 21 and the outer wall of the heat dissipation clamping ring 251 can evenly guide and dissipate the heat to prevent local overheating. When lubricating liquid needs to be input, the lubricating liquid is inverted into the oil guide groove 32. The lubricating liquid will gradually fall onto the oil delivery plate 34 along the oil drop hole 33, and then be gradually transported to the pocket 4 through the oil delivery plate 34. The expansion groove 5 in the pocket 4 can store excess lubricating liquid, thereby promoting the uniform distribution of the lubricating liquid.

[0039] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-precision cage structure of a hub unit, comprising a high-precision cage body (1), characterized in that: Also includes: A connecting heat dissipation structure (2), the connecting heat dissipation structure (2) being arranged on the outer wall of the high-precision holder body (1) and used for heat dissipation of the high-precision holder body (1); An oil guide assembly (3) is provided at the bottom end connected to the heat dissipation structure (2) and is used for introducing lubricating liquid; The connection heat dissipation structure (2) comprises a heat dissipation connection ring plate (21), the heat dissipation connection ring plate (21) is movably connected to the outer wall of the high-precision retaining frame body (1), the outer wall of the heat dissipation connection ring plate (21) is provided with a heat dissipation hole (22), the outer wall of the heat dissipation connection ring plate (21) is fixedly mounted with a slope ring plate (23), the bottom end of the heat dissipation connection ring plate (21) is fixedly mounted with a clamping column (24), and one end of the clamping column (24) is provided with a clamping assembly (25).

2. The high-precision cage structure of a hub unit according to claim 1, characterized in that: The clamping assembly (25) comprises a heat dissipation clamping ring (251), the outer wall of the heat dissipation clamping ring (251) is provided with a clamping hole (252), the heat dissipation clamping ring (251) is connected to the clamping column (24) through the clamping hole (252), and the outer wall of the heat dissipation clamping ring (251) is provided with a connection groove (253).

3. The high-precision cage structure of a hub unit according to claim 1, characterized in that: The oil guide assembly (3) includes a circular plate (31), the circular plate (31) is movably connected to the outer wall of the high-precision retainer body (1), the outer wall of the circular plate (31) is provided with an oil guide groove (32), the outer wall of the oil guide groove (32) is provided with an oil drop hole (33), and the bottom end of the circular plate (31) is fixedly mounted with an oil delivery plate (34), and the outer wall of the oil delivery plate (34) is provided with a slide groove (35).

4. The high-precision cage structure of a hub unit according to claim 1, characterized in that: The outer wall of the high-precision retainer body (1) is provided with a pocket (4) for placing balls or rollers, and the outer wall of the pocket (4) is provided with an expansion groove (5) for storing lubricating liquid.

5. The high-precision cage structure of a hub unit according to claim 1, characterized in that: A slide plate (7) is fixedly mounted on the outer wall of the high-precision retainer body (1) and is used for sliding connection with a slide groove (35) in the oil guide assembly (3).

6. The high-precision cage structure of a hub unit according to claim 1, characterized in that: A connecting circular groove plate (6) is fixedly mounted on the outer wall of the high-precision retainer body (1) and is used for connecting the limiter of the heat dissipation structure (2) and the connection with the matching snap-fit ​​assembly (25).

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