Hub bearing unit for vehicle

Abstract

The utility model discloses a vehicle hub bearing unit which comprises a hub structure and a round shell, the outer side of the hub structure is sleeved with the round shell, a rolling body is installed between the round shell and the outer wall of the hub structure, a retainer is arranged on the rolling body, the round shell is sleeved with a bogie and is fixedly connected with a plurality of installation plates, and the installation plates are fixedly connected with the bogie. The installation plate is arranged in an L shape and arranged on the outer wall of the bogie in a sleeving mode, threaded holes and positioning holes are formed in the outer wall of the bogie and the outer wall of the round shell in a concentric mode, and fixing bolts are installed on the installation plate. According to the hub bearing unit, the lubricating oil tank filled with specified lubricating oil is connected with the connecting tank, so that the lubricating oil can enter the arc-shaped groove through the connecting pipe under the action of gravity and is injected into the rolling body and the internal structure through the through hole in the side wall of the arc-shaped groove, effective lubricating operation is achieved, and stable use of the hub bearing unit is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile parts, and specifically relates to a wheel hub bearing unit for vehicle. BACKGROUND

[0002] The wheel hub bearing unit for vehicle is one of the key parts of an automobile, which is mainly used for supporting the wheel hub of the vehicle, enabling the wheel hub to rotate smoothly, and bearing the weight and various driving forces of the vehicle.

[0003] At present, the third generation wheel hub bearing unit of the prior art CN202833633U comprises a flange plate for fixing the wheel hub, the side of the flange plate close to the center of the vehicle body is formed into an integral whole with a bearing inner ring, a bearing outer ring is coaxially sleeved on the bearing inner ring and fixed on the vehicle body, two groups of bearing balls are arranged in the space between the bearing outer ring and the bearing inner ring, and the space is sealed by upper and lower sealing members at both ends. When installing, the fixing bolt needs to penetrate through the bogie structure, and in the actual installation process, because the space of the automobile wheel part is limited and affected by the driving shaft and the protective sleeve, the installation operation of the fixing bolt is very inconvenient, which brings great trouble for subsequent maintenance or replacement; and as the use time increases, the lack of lubrication inside the bearing is a major cause of bearing damage, and the wheel hub bearing of the prior art is inconvenient and cumbersome in the operation process of adding lubricating oil, which is not conducive to the stable use of the wheel hub bearing. SUMMARY

[0004] In view of the above-mentioned deficiencies in the prior art, the utility model aims to provide a wheel hub bearing unit for vehicle, which has the advantages of convenient installation and good lubrication effect.

[0005] The utility model discloses the technical scheme adopted for realizing the above-mentioned purpose is: a wheel hub bearing unit for vehicle, including the wheel hub structure, the outside of wheel hub structure is equipped with the round shell, the round shell is installed with the rolling body between wheel hub structure outer wall, the rolling body is provided with the retainer, the round shell is equipped with the bogie and is fixedly connected with a plurality of installation plates, the installation plate is set up and is equipped on the outer wall of bogie L-shaped setting, the bogie and the concentric setting screw hole and positioning hole are set up on the outer wall of round shell, the installation plate is installed with the fixed bolt, the fixed bolt is connected with the screw hole and one end is inserted into the positioning hole, the outer wall of round shell is provided with lubricating assembly.

[0006] In the above technical scheme, the lubricating assembly includes an arc-shaped groove, the arc-shaped groove is formed in the round shell between the rolling bodies, a plurality of through holes are formed in the inner wall of the arc-shaped groove, a connecting pipe is fixedly connected to the outer wall of the arc-shaped groove, and a lubricating oil tank is installed on the connecting pipe.

[0007] In the above technical scheme, the arc-shaped groove is arranged on the top side wall of the circular shell, and the central angle of the arc-shaped groove is 180 degrees.

[0008] In the above technical scheme, the connecting pipe is arranged through the arc-shaped groove, and the top end of the connecting pipe has a larger diameter than the bottom end.

[0009] In the above technical scheme, threads are arranged on the inner wall of the connecting pipe and the outer wall of the bottom end of the lubricating oil tank, and the connecting pipe and the lubricating oil tank are connected and installed through threads.

[0010] In the above technical scheme, a sealing ring is arranged between the circular shell and the hub structure.

[0011] The beneficial effects of the present application are as follows:

[0012] 1. During installation, the circular shell is sleeved on the bogie connected with the vehicle, the mounting plate is sleeved on the outer wall of the bogie, and the fixing bolt is threaded through the side wall of the mounting plate and is screwed with the threaded hole on the bogie, so that the fixing bolt is installed on the peripheral side wall of the bogie, the fixing bolt does not need to be threaded through the bogie for installation and can avoid the obstruction of the driving shaft, and convenient installation operation of the hub bearing unit can be realized.

[0013] 2. The lubricating oil tank containing specified lubricating oil is connected with the connecting tank, so that the lubricating oil can enter the arc-shaped groove through the connecting pipe under the action of gravity, and is filled into the rolling body and the internal structure through the through hole on the side wall of the arc-shaped groove, so that effective lubrication operation is realized, and stable use of the hub bearing unit is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present application;

[0015] Figure 2 It is a schematic diagram of the transverse cross-sectional three-dimensional structure of the present application;

[0016] Figure 3 It is a schematic diagram of the longitudinal cross-sectional three-dimensional structure of the present application;

[0017] Figure 4 It is a schematic diagram of the three-dimensional structure on the circular shell of the present application;

[0018] Figure 5 It is a schematic diagram of the three-dimensional structure of the bogie of the present application.

[0019] In the figure: 1, hub structure; 2, circular shell; 3, rolling body; 4, retainer; 5, bogie; 6, mounting plate; 7, threaded hole; 8, positioning hole; 9, fixing bolt; 10, lubricating assembly; 11, arc-shaped groove; 12, through hole; 13, connecting pipe; 14, lubricating oil tank; 15, sealing ring. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model.

[0021] Please refer to Figures 1-5 A wheel hub bearing unit for vehicle, comprising a wheel hub structure 1, a circular shell 2 is sleeved on the outer side of the wheel hub structure 1, rolling elements 3 are installed between the circular shell 2 and the outer wall of the wheel hub structure 1, a retainer 4 is arranged on the rolling elements 3, a sealing ring 15 is installed between the circular shell 2 and the wheel hub structure 1, the driving shaft is fixedly installed in the wheel hub structure 1, and the movement of the rolling elements 3 can realize the movement of the wheel hub structure 1, thereby realizing the driving function of the vehicle.

[0022] A steering frame 5 is sleeved on the circular shell 2, and a plurality of mounting plates 6 are fixedly connected, the mounting plates 6 are arranged in an L shape and are sleeved on the outer wall of the steering frame 5, a plurality of threaded holes 7 and positioning holes 8 are arranged concentrically on the outer wall of the steering frame 5 and the circular shell 2, and a fixing bolt 9 is installed on the mounting plate 6 and is screwed into the threaded hole 7 and inserted into the positioning hole 8.

[0023] In the above technical solution, when installing, the circular shell 2 is only needed to be sleeved on the steering frame 5 connected with the vehicle, the mounting plate 5 is sleeved on the outer wall of the steering frame 5, and the fixing bolt 9 is screwed into the threaded hole 7 on the steering frame 5 through the side wall of the mounting plate 5, because the installation position of the fixing bolt 9 is on the peripheral side wall of the steering frame 5, the fixing bolt 9 does not need to be installed through the steering frame 5 and can avoid the obstruction of the driving shaft, so that the convenient installation operation of the wheel hub bearing unit can be realized, in addition, the insertion between the fixing bolt 9 and the positioning hole 8 on the side wall of the circular shell 2 can further improve the installation firmness.

[0024] A lubricating assembly 10 is arranged on the outer wall of the circular shell 2, the lubricating assembly 10 comprises an arc-shaped groove 11, the arc-shaped groove 11 is arranged in the circular shell 2 between the rolling elements 3, a plurality of through holes 12 are arranged on the inner wall of the arc-shaped groove 11, a connecting pipe 13 is fixedly connected to the outer wall of the arc-shaped groove 11, and a lubricating oil tank 14 is installed on the connecting pipe 13.

[0025] In the above technical solution, the lubricating oil tank 14 filled with specified lubricating oil is connected with the connecting pipe 13, so that the lubricating oil can enter the arc-shaped groove 11 through the connecting pipe 13 under the action of gravity, and is filled into the rolling elements 3 and the internal structure through the through holes 12 on the side wall of the arc-shaped groove 11, thereby realizing the effective lubrication operation and facilitating the stable use of the wheel hub bearing unit.

[0026] Further, the arc-shaped groove 11 is arranged on the top side wall of the circular shell 2, and the central angle of the arc-shaped groove 11 is 180 degrees, so as to facilitate the lubricating oil to lubricate the rolling body 3 and the internal structure.

[0027] Further, the connecting pipe 13 is arranged through the arc-shaped groove 11, the top end of the connecting pipe 13 has a larger diameter than the bottom end, and the inner wall of the connecting pipe 13 and the outer wall of the bottom end of the lubricating oil tank 14 are both provided with threads, so that the connecting pipe 13 and the lubricating oil tank 14 are connected and installed through the threads, which facilitates the installation of the lubricating oil tank 14 and the lubrication of the lubricating oil.

[0028] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as illustrative and not restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended to embrace all changes falling within the meaning and scope of the equivalent elements of the claims. Any reference signs in the claims should not be considered as limiting the claims involved.

[0029] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. A vehicle wheel hub bearing unit, comprising a wheel hub structure (1), characterized in that: A circular shell (2) is fitted on the outer side of the hub structure (1). A rolling element (3) is installed between the circular shell (2) and the outer wall of the hub structure (1). A retainer (4) is provided on the rolling element (3). A bogie (5) is fitted on the circular shell (2) and several mounting plates (6) are fixedly connected to it. The mounting plates (6) are L-shaped and fitted on the outer wall of the bogie (5). The bogie (5) and the outer wall of the circular shell (2) are provided with concentric threaded holes (7) and positioning holes (8). A fixing bolt (9) is installed on the mounting plate (6). The fixing bolt (9) is threadedly connected to the threaded hole (7) and one end is inserted into the positioning hole (8). A lubrication assembly (10) is provided on the outer wall of the circular shell (2).

2. The automotive wheel hub bearing unit according to claim 1, characterized in that: The lubrication assembly (10) includes an arc groove (11). The circular shell (2) is located between the rolling elements (3) and has an arc groove (11). The inner wall of the arc groove (11) has several through holes (12). A connecting pipe (13) is fixedly connected to the outer wall of the arc groove (11). A lubricating oil tank (14) is installed on the connecting pipe (13).

3. The automotive wheel hub bearing unit according to claim 2, characterized in that: The arc-shaped groove (11) is located on the top side wall of the circular shell (2), and the central angle of the arc-shaped groove (11) is 180 degrees.

4. The automotive wheel hub bearing unit according to claim 2, characterized in that: The connecting pipe (13) and the arc-shaped groove (11) are connected in a continuous manner, and the top diameter of the connecting pipe (13) is larger than the bottom diameter.

5. A vehicle wheel hub bearing unit according to claim 2, characterized in that: The inner wall of the connecting pipe (13) and the outer wall of the bottom end of the lubricating oil tank (14) are both threaded, and the connecting pipe (13) and the lubricating oil tank (14) are connected and installed by the thread.

6. The automotive wheel hub bearing unit according to claim 1, characterized in that: A sealing ring (15) is installed between the round shell (2) and the hub structure (1).

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