PROBLEM TO BE SOLVED: To restrain sealability from being impaired when a seal ring is early abraded, by making external foreign matter hard to intrude between the seal ring and a shaft side end surface part.SOLUTION: A crawler pin seal restrains external foreign matter from intruding by installing a seal ring in a compressed state between mutually opposed shaft side end surface part and housing side end surface part. The seal ring is integrally provided with a shaft side seal part for contacting with the shaft side end surface part, a housing side seal part for contacting with the housing side end surface part and a bellows-shaped connection part for connecting mutual inner peripheral parts of both seal parts. A plurality of projections are juxtaposed in the radial direction on a contact surface of the shaft side seal part for contacting with the shaft side end surface part, and a plurality of high bearing pressure parts are dispersively arranged by respectively contacting the plurality of projections with the shaft side end surface part.

    【課題】シールリングおよび軸側端面部間に外部異物が侵入しにくく、よってシールリングが早期に摩耗してシール性が損なわれるのを抑制する。【解決手段】互いに対向する軸側端面部およびハウジング側端面部間にシールリングを圧縮した状態で装着することにより外部異物が侵入するのを抑制する履帯ピンシールである。シールリングは、軸側端面部に接触する軸側シール部と、ハウジング側端面部に接触するハウジング側シール部と、両シール部の内周部同士を連結したベロー状の連結部とを一体に備える。軸側端面部に接触する軸側シール部の接触面に複数の突起を径方向に並べて設け、複数の突起がそれぞれ軸側端面部に接触することにより複数の高面圧部が分散配置される。【選択図】図2


    Access

    Download


    Export, share and cite



    Title :

    CRAWLER PIN SEAL


    Additional title:

    履帯ピンシール


    Contributors:

    Publication date :

    2015-12-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge / F16J Kolben , PISTONS



    CRAWLER PIN SEAL

    NAKAMURA TAKASHI / OKOUCHI SHO | European Patent Office | 2017

    Free access

    Seal guard for crawler

    FREEMAN ERNIE | European Patent Office | 2021

    Free access

    SEAL GUARD FOR CRAWLER

    FREEMAN ERNIE | European Patent Office | 2021

    Free access

    Seal structure of crawler-driving apparatus

    HIROTA YOSHIKAZU / IMOTO CHIKASHI / ITO KAZUMI et al. | European Patent Office | 2019

    Free access

    SEAL STRUCTURE OF CRAWLER-DRIVING APPARATUS

    HIROTA YOSHIKAZU / IMOTO CHIKASHI / ITO KAZUMI et al. | European Patent Office | 2015

    Free access