JPH0380158U

JPH0380158U -

Info

Publication number: JPH0380158U
Application number: JP14215789U
Authority: JP
Priority date: 1989-12-07
Filing date: 1989-12-07
Publication date: 1991-08-16

Description

[Brief explanation of drawings]

第１図は本考案に係る履帯シールの第１実施例
を示す断面図、第２図は同シールの作用を示す断
面図、第３図は同じく本考案に係る履帯シールの
第２実施例を示す断面図、第４図は履帯連結部の
部分断面図、第５図は従来の履帯シールの一例を
示す断面図、第６図は第５図に示す履帯シールの
作用を示す断面図である。１……内方リンク、２……外方リンク、３……
ブツシユ、３ａ……ブツシユ端面、４……軸ピン
、Ｓ，Ｓ′，Ｓ″……履帯シール組立体、５……
カウンタボア、６……スペーサリング、７，１１
……シールリング、８，１２……負荷リング、７
ａ，１１ｂ，１４ｂ……シールリツプ部、１３，
１５……補強リング。 FIG. 1 is a cross-sectional view showing a first embodiment of a crawler seal according to the present invention, FIG. 2 is a cross-sectional view showing the operation of the same seal, and FIG. 3 is a second embodiment of a crawler seal according to the present invention. FIG. 4 is a partial sectional view of a crawler linking portion, FIG. 5 is a sectional view showing an example of a conventional crawler seal, and FIG. 6 is a sectional view showing the action of the crawler seal shown in FIG. . 1...Inner link, 2...Outer link, 3...
Bush, 3a...Bushion end face, 4...Axle pin, S, S', S''...Crawler seal assembly, 5...
Counterbore, 6... Spacer ring, 7, 11
... Seal ring, 8, 12 ... Load ring, 7
a, 11b, 14b...Seal lip portion, 13,
15...Reinforcement ring.

Claims

[Scope of claims for utility model registration] (1) Inner link press-fitted into the end of the bushing;
A seal lip in which a crawler seal fitted in a counterbore of a crawler linking portion formed by an outer link press-fitted to the end of a shaft pin rotatably inserted into the bushing contacts the end face of the bushing to form a sealing surface. A crawler track seal comprising: a seal lip; a load ring that presses the seal lip from the back; and a reinforcing ring inserted between the seal lip and the load ring. (2) A crawler track seal according to claim (1), wherein the reinforcing ring is made of metal or a hard resin material and has a considerably larger elastic modulus than the seal ring. (3) The reinforcing ring according to claim (1) has a thickness of 0.5 to 1.
A crawler track seal characterized by having a thickness in the 0m/m range. (4) a seal ring having a W-shaped cross section forming an annular groove and having a seal lip portion that slides facing the end face of the bush; and a seal ring disposed within the annular groove provided in the seal ring, is inserted between a load ring that presses from the back against the end face of the bush, and the seal lip part and the load ring, so that when the inner and outer links rotate relative to each other, the seal lip part is stably pressed against the seal surface. A crawler track seal comprising a reinforcing ring means that slides against each other. (5) A load ring part, a seal lip that extends to the load ring part and is integrated with the load ring part, a radial piece is inserted between the load ring part and the seal lip part, and a horizontal piece is inserted between the load ring part and the seal lip part. A crawler belt seal comprising a reinforcing ring means having a substantially L-shaped cross section and closely supporting the inner circumferential surface of a load ring.