Automobile wheel hub bearing sealing structure

Abstract

The utility model relates to the technical field of wheel hub bearing sealing structure, specifically to a car wheel hub bearing sealing structure, comprising: an outer ring assembly, an inner ring assembly is arranged on the inner surface of the outer ring assembly, and a bolt assembly is installed on the surface of the outer ring assembly. The utility model installs the sealing mechanism after removing the sealing ring on the original car wheel hub bearing, and the first sealing ring and the second sealing ring are both made of hard material, so that they will not be deformed and damaged after long-term use. Through the clamping action of the first sealing ring and the second sealing ring, the outflow of lubricant in the bearing and the entry of external dust can be effectively avoided. At the same time, through the connection action of the rotating block and the rolling block, the plane connection between the first sealing ring and the second sealing ring is transformed into a rolling connection, thereby reducing the wear caused by the large friction when the first sealing ring and the second sealing ring rotate relative to each other.

Description

Technical Field

[0001] The utility model relates to the technical field of wheel hub bearing sealing structures, in particular to an automobile wheel hub bearing sealing structure. Background Art

[0002] The wheel hub bearing is one of the key components of a car. Its main function is to bear weight and provide precise guidance for the rotation of the wheel hub, which requires it to be able to withstand not only axial loads but also radial loads.

[0003] During the installation of automobile wheel hub bearings, both sides of the installed bearings need to be sealed. However, existing automobile wheel hub bearings are sealed with soft sealing rings. After long-term use, the soft sealing rings are prone to deformation and damage due to continuous friction, which can easily cause the lubricant in the bearing to flow out and external air and dust to enter. Utility Model Content

[0004] The purpose of the utility model is to provide a sealing structure for an automobile wheel hub bearing, so as to solve the problem that the automobile wheel hub bearing proposed in the above-mentioned background technology is sealed by a soft sealing ring, and after long-term use, the soft sealing ring is easily deformed and damaged in continuous friction, which easily causes the outflow of lubricant in the bearing and the entry of external air and dust.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sealing structure for an automobile wheel hub bearing, comprising an outer ring component, an inner ring component is arranged on the inner surface of the outer ring component, a bolt component is installed on the surface of the outer ring component, balls are slidably connected on the surfaces of the outer ring component and the inner ring component, a mounting hole is provided on the surface of the outer ring component, a first sealing ring is installed on the surface of the outer ring component, a second sealing ring is installed on the surface of the inner ring component, a mounting block is fixedly connected to the surface of the second sealing ring, a mounting groove is provided on the surface of the first sealing ring, a rotating hole is provided on the surface of the mounting groove, a rolling block is installed on the surface of the mounting groove, and a rotating block is fixedly connected to the surface of the rolling block.

[0006] Preferably, two groups of mounting holes are provided, one group of mounting holes is opened on the inner surface of the outer ring component, and the other group of mounting holes is opened on the surface of the inner ring component, and the diameter of the mounting holes is the same as the diameter of the mounting block.

[0007] Preferably, the first sealing ring is snap-connected to the surface of the second sealing ring, and the mounting blocks are provided in two groups, one group of mounting blocks is fixedly connected to the surface of the first sealing ring, and the other group of mounting blocks is fixedly connected to the surface of the second sealing ring, and the mounting blocks are plug-connected to the surface of the mounting holes.

[0008] Preferably, two groups of the mounting grooves are provided, and the two groups of the mounting grooves are opened on both sides of the first sealing ring, and the size of the mounting groove is larger than the size of the rolling block.

[0009] Preferably, two groups of the rotating holes are provided, and the two groups of the rotating holes are opened on both sides of the mounting groove, and the diameter of the rotating holes is the same as the diameter of the rotating block.

[0010] Preferably, two groups of rotating blocks are provided, and the two groups of rotating blocks are fixedly connected to two sides of the rolling block.

[0011] Preferably, the rotating block is rotatably connected to the surface of the rotating hole, and the rolling block is fittedly connected to the surface of the second sealing ring.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The sealing mechanism is installed after removing the sealing ring on the original automobile wheel hub bearing, and the first sealing ring and the second sealing ring are both made of hard material, so that they will not be deformed or damaged after long-term use. The first sealing ring and the second sealing ring can effectively prevent the lubricant in the bearing from flowing out and the external dust from entering through the clamping action of the first sealing ring and the second sealing ring. At the same time, through the connection action of the rotating block and the rolling block, the plane connection between the first sealing ring and the second sealing ring is transformed into a rolling connection, thereby reducing the wear caused by the large friction when the first sealing ring and the second sealing ring rotate relative to each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view stereoscopic schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a schematic diagram of a frontal three-dimensional cross-sectional view of the structure of the utility model;

[0016] Figure 3 It is a three-dimensional schematic diagram of the structure of the first sealing ring of the utility model;

[0017] Figure 4 It is a partial three-dimensional cross-sectional schematic diagram of the structure of the second sealing ring of the utility model;

[0018] Figure 5 For this utility model Figure 4 Schematic diagram of the structure of the rolling block.

[0019] In the figure: 1. Outer ring assembly; 2. Inner ring assembly; 3. Bolt assembly; 4. Ball; 5. Mounting hole; 6. First sealing ring; 7. Second sealing ring; 8. Mounting block; 9. Mounting groove; 10. Rotating hole; 11. Rolling block; 12. Rotating block. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-5 , an embodiment provided by the utility model:

[0022] A sealing structure for a vehicle wheel hub bearing comprises an outer ring component 1, an inner ring component 2 is arranged on the inner surface of the outer ring component 1, a bolt component 3 is installed on the surface of the outer ring component 1, balls 4 are slidably connected to the surfaces of the outer ring component 1 and the inner ring component 2, a mounting hole 5 is provided on the surface of the outer ring component 1, a first sealing ring 6 is installed on the surface of the outer ring component 1, a second sealing ring 7 is installed on the surface of the inner ring component 2, a mounting block 8 is fixedly connected to the surface of the second sealing ring 7, a mounting groove 9 is provided on the surface of the first sealing ring 6, a rotating hole 10 is provided on the surface of the mounting groove 9, a rolling block 11 is installed on the surface of the mounting groove 9, and a rotating block 12 is fixedly connected to the surface of the rolling block 11. During the rotation of the vehicle wheel hub, the outer ring component 1 and the inner ring component 2 rotate relative to each other, and the balls 4 slide on the surfaces of the outer ring component 1 and the inner ring component 2. The outer ring component 1 can be installed by the bolt component 3, so that the maintenance of the bearing is more convenient, and the sealing mechanism composed of the first sealing ring 6 and the second sealing ring 7 can seal the gap formed by the outer ring component 1 and the inner ring component 2.

[0023] Furthermore, two groups of mounting holes 5 are provided, one group of mounting holes 5 is opened on the inner surface of the outer ring component 1, and the other group of mounting holes 5 is opened on the surface of the inner ring component 2. The diameter of the mounting holes 5 is the same as the diameter of the mounting block 8. Under the action of the mounting holes 5, the mounting block 8 can be installed on its surface, thereby realizing the installation limit of the first sealing ring 6 and the second sealing ring 7.

[0024] Furthermore, the first sealing ring 6 is snap-connected to the surface of the second sealing ring 7, and two groups of mounting blocks 8 are provided, one group of mounting blocks 8 is fixedly connected to the surface of the first sealing ring 6, and the other group of mounting blocks 8 is fixedly connected to the surface of the second sealing ring 7, and the mounting blocks 8 are plugged and connected to the surface of the mounting hole 5. Under the action of the mounting blocks 8, the first sealing ring 6 and the outer ring assembly 1 are connected, and the second sealing ring 7 and the inner ring assembly 2 are connected, so as to realize the installation and fixation of the sealing mechanism, and the mounting blocks 8 have a certain elasticity.

[0025] Furthermore, two groups of mounting grooves 9 are provided, and the two groups of mounting grooves 9 are opened on both sides of the first sealing ring 6. The size of the mounting groove 9 is larger than the size of the rolling block 11. Under the action of the mounting groove 9, the rolling block 11 can rotate on the surface of the mounting groove 9.

[0026] Furthermore, two groups of rotating holes 10 are provided, and the two groups of rotating holes 10 are opened on both sides of the mounting groove 9. The diameter of the rotating hole 10 is the same as the diameter of the rotating block 12. Through the connection between the rotating hole 10 and the rotating block 12, the rolling block 11 rolls on the surface of the second sealing ring 7 and rotates around the rotating block 12.

[0027] Furthermore, two groups of rotating blocks 12 are provided, and the two groups of rotating blocks 12 are fixedly connected to both sides of the rolling block 11. Through the connecting action of the rotating blocks 12, the installation support effect of the rolling block 11 is achieved, so that the rolling block 11 is connected to the first sealing ring 6.

[0028] Furthermore, the rotating block 12 is rotatably connected to the surface of the rotating hole 10, and the rolling block 11 is fitted and connected to the surface of the second sealing ring 7. Under the connection between the rolling block 11 and the second sealing ring 7, the rotational connection between the first sealing ring 6 and the second sealing ring 7 is smoother, the friction is reduced, and the rotation efficiency is improved.

[0029] Working principle: During the installation of the automobile wheel hub bearing, first place the second sealing ring 7 and the first sealing ring 6 in the gap between the outer ring assembly 1 and the inner ring assembly 2, and press them downward at the same time so that the two sets of mounting blocks 8 are respectively engaged in their respective mounting holes 5. During use, the rotation of the inner ring assembly 2 drives the second sealing ring 7 to rotate. Due to the connection between the rolling block 11 and the second sealing ring 7, the rolling block 11 is driven to rotate around the rotating block 12 to achieve sealing of the automobile wheel hub bearing.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An automobile wheel hub bearing sealing structure, comprising an outer ring assembly (1), characterized in that: The inner surface of the outer ring component (1) is provided with an inner ring component (2), the surface of the outer ring component (1) is installed with a bolt component (3), the surfaces of the outer ring component (1) and the inner ring component (2) are slidably connected with balls (4), the surface of the outer ring component (1) is provided with a mounting hole (5), the surface of the outer ring component (1) is installed with a first sealing ring (6), the surface of the inner ring component (2) is installed with a second sealing ring (7), the surface of the second sealing ring (7) is fixedly connected with a mounting block (8), the surface of the first sealing ring (6) is provided with a mounting groove (9), the surface of the mounting groove (9) is provided with a rotating hole (10), the surface of the mounting groove (9) is installed with a rolling block (11), and the surface of the rolling block (11) is fixedly connected with a rotating block (12).

2. The automobile wheel hub bearing sealing structure according to claim 1, characterized in that: The mounting holes (5) are provided in two groups, one group of the mounting holes (5) is opened on the inner surface of the outer ring component (1), and the other group of the mounting holes (5) is opened on the surface of the inner ring component (2), and the diameter of the mounting holes (5) is the same as the diameter of the mounting block (8).

3. The automobile wheel hub bearing sealing structure according to claim 1, characterized in that: The first sealing ring (6) is snap-connected to the surface of the second sealing ring (7); the mounting blocks (8) are provided in two groups, one group of the mounting blocks (8) is fixedly connected to the surface of the first sealing ring (6); the other group of the mounting blocks (8) is fixedly connected to the surface of the second sealing ring (7); and the mounting blocks (8) are plug-connected to the surface of the mounting holes (5).

4. The automobile wheel hub bearing sealing structure according to claim 1, characterized in that: Two groups of the installation grooves (9) are provided, and the two groups of the installation grooves (9) are opened on both sides of the first sealing ring (6). The size of the installation grooves (9) is larger than the size of the rolling block (11).

5. The automobile wheel hub bearing sealing structure according to claim 1, characterized in that: Two groups of rotating holes (10) are provided, and the two groups of rotating holes (10) are opened on both sides of the mounting groove (9), and the diameter of the rotating holes (10) is the same as the diameter of the rotating block (12).

6. The automobile wheel hub bearing sealing structure according to claim 5, characterized in that: The rotating blocks (12) are provided in two groups, and the two groups of rotating blocks (12) are fixedly connected to the two sides of the rolling block (11).

7. The automobile wheel hub bearing sealing structure according to claim 6, characterized in that: The rotating block (12) is rotatably connected to the surface of the rotating hole (10), and the rolling block (11) is closely connected to the surface of the second sealing ring (7).

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