Sealing ring capable of improving waterproof effect and automobile electric power steering gear

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Sealing ring capable of improving waterproof effect and automobile electric power steering gear

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ZHANG WU / ZHANG PENG / YANG LING / YAN XIANGLIAN / SHUAI ZHENGYANG

The sealing ring comprises a framework and a rubber body, a mounting groove is formed in the rubber body, the framework is mounted in the mounting groove, a main lip, a first auxiliary lip and a second auxiliary lip are arranged on the inner side of the rubber body, the main lip is arranged at the lower end of the rubber body, and the second auxiliary lip is arranged at the lower end of the rubber body. The first auxiliary lip is arranged in the middle of the rubber body, and the second auxiliary lip is arranged at the upper end of the rubber body. A three-layer lip-shaped structure is adopted to seal the electric power steering gear, and the phenomenon that external water enters an assembly due to the fact that the steering gear wades into water is avoided. The waterproof performance is improved, abrasion of moving parts is reduced, noise and abnormal sound are reduced, the reliability and safety of automobile steering are improved, and the comfort and safety of driving are improved.

本发明公开了一种提升防水效果的密封圈，包括骨架和橡胶体，所述橡胶体内设置有安装槽，所述骨架安装于安装槽内，所述橡胶体的内侧设置有主唇、第一副唇和第二副唇，所述主唇设置于所述橡胶体的下端部，所述第一副唇设置于所述橡胶体的中部，所述第二副唇设置于所述橡胶体的上端部。采用三层唇形结构对电动助力转向器进行密封，避免了因为转向器涉水导致外部水进入总成的现象。提高了防水性能，降低了运动件的磨损，减少了噪音异响，提高了汽车转向的可靠性和安全性，增加了驾驶的舒适性和安全性。