Novel hub unit sealing system

Abstract

The utility model relates to the field of automobile axles, in particular to a novel hub unit sealing system which comprises a maintenance-free hub unit assembly and further comprises an oil seal and an oil seal support assembly, and the oil seal and an oil seal support are sequentially assembled on a hub in the axial direction. The oil seal is pressed in an inner cavity of the hub and rotates along with the hub; the outer edge of the oil seal support is matched with the inner hole of the oil seal, and the inner hole of the oil seal support is fixed on the axle tube of the axle housing and does not rotate along with the hub. When the maintenance-free hub unit is used, silt and sewage can be prevented from entering the maintenance-free hub unit, and the sealing effect of the hub unit is improved. And by using the novel sealing system, the ideal service life of the maintenance-free hub unit is ensured.

Description

Technical Field

[0001] The utility model relates to the field of automobile axles, and particularly relates to a new hub unit sealing system. Background Art

[0002] Due to its light weight and maintenance-free characteristics, the maintenance-free hub unit is increasingly widely used in the whole vehicle. Especially its self-sealing system plays an increasingly important role in improving the overall maintenance-free performance of the axle.

[0003] The existing maintenance-free hub units have the following areas to be improved when in use:

[0004] Due to a large amount of sediment and sewage under specific working conditions, there is a phenomenon of poor sealing effect in some existing maintenance-free hub units, resulting in water or sediment entering the maintenance-free hub unit, and then the assembly is burned and damaged.

[0005] Therefore, those skilled in the art have provided a new hub unit sealing system to solve the problems raised in the above background art. Summary of the Utility Model

[0006] To solve the above technical problems, the utility model provides a new hub unit sealing system,

[0007] which includes a maintenance-free hub unit assembly, and also includes an oil seal and an oil seal bracket assembly. The oil seal and the oil seal bracket are axially assembled on the hub in sequence;

[0008] The oil seal is press-fitted into the inner cavity of the hub and rotates with the hub;

[0009] The outer edge of the oil seal bracket is matched with the inner hole of the oil seal, and the inner hole of the oil seal bracket is fixed on the axle tube of the axle housing and does not rotate with the hub;

[0010] Technical effects and advantages of the utility model:

[0011] When in use, the utility model can prevent sediment and sewage from entering the maintenance-free hub unit, and improve the sealing effect of the hub unit.

[0012] By using the new sealing system, the maintenance-free hub unit can reach an ideal service life. Description of the Drawings

[0013] Figure 1 is a schematic diagram of a new hub unit sealing system provided by an embodiment of the present application;

[0014] In the figure:

[0015] 1. Maintenance-free hub unit, 2. Oil seal, 3. Oil seal bracket. Detailed Embodiment

[0016] The present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present utility model are given for purposes of illustration and description, and are not exhaustive or limit the present utility model to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present utility model, and enable those of ordinary skill in the art to understand the present utility model and thus design various embodiments with various modifications suitable for specific purposes.

[0017] Embodiment 1

[0018] Please refer to Figure 1 , in this embodiment, a new type of hub unit sealing system is provided, which includes a maintenance-free hub unit 1, and also includes an oil seal 2 and an oil seal bracket 3. The oil seal 2 and the oil seal bracket 3 are axially assembled on the hub.

[0019] In order to achieve a sealing effect during product use, the oil seal 2 is fixed in the inner cavity of the hub of the maintenance-free hub unit 1 and rotates with the hub. The oil seal bracket 3 is fixed on the axle housing shaft tube. During the operation of the vehicle axle, the oil seal 2 rotates relative to the oil seal bracket 3.

[0020] Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art and related fields based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model. The structures, devices, and operation methods not specifically described and explained in the present utility model, unless otherwise specified and limited, are implemented according to the conventional means in the art.

Claims

1. A novel hub unit sealing system, including a maintenance-free hub unit assembly, characterized in that: It also includes an oil seal and an oil seal bracket assembly, wherein the oil seal and the oil seal bracket are axially assembled on the wheel hub; the oil seal is pressed into the inner cavity of the wheel hub; the outer edge of the oil seal bracket cooperates with the inner hole of the oil seal; the oil seal rotates with the wheel hub; the oil seal bracket is fixed on the axle tube of the bridge housing and does not rotate with the wheel hub, thereby realizing the sealing effect of the oil seal.

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