公开(公告)号：US20150298750A1

公开(公告)日：2015-10-22

申请号：US14376139

申请日：2013-03-28

申请人： KAYABA INDUSTRY Co., LTD.

发明人： Yoshikazu HIROTA ,  Chikashi IMOTO ,  Kazumi ITO ,  Junichiro SUGIMOTO ,  Eishin NOGUCHI ,  Kaori KAWABATA

IPC分类号： B62D55/088 ,  F16J15/34 ,  F16J15/32 ,  F16J15/00

CPC分类号： B62D55/088 ,  F16J15/002 ,  F16J15/008 ,  F16J15/3204 ,  F16J15/344 ,  F16J15/3464

摘要： A seal structure is provided to block a clearance between a rotational casing and a fixed housing for driving a crawler of a crawler vehicle. A seal ring is held in a first annular holding groove provided in the fixed housing together with a first O-ring that biases the seal ring toward the outside of the first holding groove. A second holding groove having an opening facing the first holding groove is provided in the rotational casing to hold a slide ring having a higher rigidity than that of the seal ring together with a second O-ring that biases the slide ring toward the seal ring. A foreign object such as mud is thereby prevented from invading a gear chamber without increasing a frictional loss.

摘要翻译： 提供密封结构以阻挡旋转壳体和用于驱动履带车辆的履带的固定壳体之间的间隙。 密封环与设置在固定壳体中的第一环形保持槽一起保持，第一O形环将密封环朝向第一保持槽的外侧偏压。 具有面向第一保持槽的开口的第二保持槽设置在旋转壳体中，以与将密封环偏压的环的第二O形环一起保持具有比密封环的刚性更高的刚性的滑环。 由此防止诸如泥浆的异物侵入齿轮室而不增加摩擦损失。