一种汽车轮毂油封

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By combining an outer skeleton and an inner skeleton structure with the design of rubber rings and sealing rings, the problem of sealing failure of automotive wheel hub oil seals under external forces is solved, achieving a stable and reliable sealing effect.

CN224515942UActive Publication Date: 2026-07-17QINGDAO PEIKE SEALING TECH CO LTD

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: QINGDAO PEIKE SEALING TECH CO LTD
Filing Date: 2025-09-08
Publication Date: 2026-07-17

AI Technical Summary

Technical Problem

Existing automotive wheel hub oil seals are prone to deformation and damage under prolonged external force, leading to seal failure and inability to effectively prevent lubricant leakage and the intrusion of external impurities.

Method used

The design employs a combination of an outer skeleton and an inner skeleton, along with the design of a first rubber ring, a sealing lip, a fluororubber sealing ring, and a second rubber ring, to form a stable and tight fit structure that enhances sealing performance.

Benefits of technology

It improves the stability and wear resistance of the oil seal, prevents seal failure, and ensures the durability and reliability of the sealing effect.

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Abstract

本申请提供了一种汽车轮毂油封，涉及油封技术领域，包括外骨架，外骨架的内侧设置有内骨架，内骨架的内侧中部设置有第一橡胶环，第一橡胶环的内侧设置有密封唇，密封唇与外骨架之间连接有氟橡胶密封圈；密封唇与内骨架之间连接有第二橡胶环，密封唇的底部与内骨架进行密封连接，密封唇的外侧设置有副唇体，第一橡胶环的内侧设置有主唇体，副唇体贴合在主唇体的底部。本实用新型提供的油封，通过外骨架和内骨架组合形成稳定支撑骨架结构，然后在第一橡胶环、密封唇、氟橡胶密封圈和第二橡胶环的作用下，使得相互之间形成紧密配合结构，从而形成稳定、可靠、持久的密封，能够防止密封失效，提高密封的稳定性和耐磨性。

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Claims

1. An automotive wheel hub oil seal characterized by, It includes an outer frame (1), an inner frame (2) is provided on the inner side of the outer frame (1), a first rubber ring (3) is provided in the middle of the inner side of the inner frame (2), a sealing lip (5) is provided on the inner side of the first rubber ring (3), and a fluororubber sealing ring (7) is connected between the sealing lip (5) and the outer frame (1). A second rubber ring (8) is connected between the sealing lip (5) and the inner skeleton (2), and the bottom of the sealing lip (5) is sealed to the inner skeleton (2).

2. An oil seal for an automotive wheel hub as claimed in claim 1, wherein A secondary lip body (6) is provided on the outer side of the sealing lip (5), and a main lip body (4) is provided on the inner side of the first rubber ring (3). The secondary lip body (6) is attached to the bottom of the main lip body (4).

3. An oil seal for an automotive wheel hub as claimed in claim 2, wherein A spring (9) is provided on the inner middle part of the sealing lip (5).

4. The oil seal for an automotive wheel hub of claim 1 wherein, The first rubber ring (3) is sealed and embedded in the slot of the inner skeleton (2).