JPH041718U

JPH041718U -

Info

Publication number: JPH041718U
Application number: JP1990042751U
Authority: JP
Priority date: 1990-04-20
Filing date: 1990-04-20
Publication date: 1992-01-08

Description

[Brief explanation of drawings]

第１図、第２図は本考案の一実施例を示し、第
１図Ａはピン継手装置の断面図、同Ｂ図はシール
組立体の一部切欠き側面図、同Ｃ図はＢ図のＡ−
Ａ断面図、第２図はピン結合要領を示す断面図、
第３図は油圧式堀削機の概略側面図、第４図は従
来のピン継手装置を示し、Ａ図は断面図、Ｂ図は
シール組立体の一部切欠き側面図、Ｃ図はＢ図の
Ａ−Ａ断面図、第５図は同ピン結合要領を示す断
面図である。１……支持アーム、２……ボス、３，５ａ，ｂ
……ピン孔、４……バケツト取付ブラケツト、６
……継手ピン、８……カバー、１０ａ，ｂ……隙
間、１１……テーパ溝、１２ａ，ｂ，１１２ａ，
ｂ……シール組立体、１３，１１３……円形リン
グ、１４，１１４……切欠き開口部、１５，１１
５……シール座、１１５ａ……外周膜、１１５ｂ
……内周膜、１１５ｃ……リング状ハンガー、１
６……リテーナ、１７……シム。 Figures 1 and 2 show an embodiment of the present invention; Figure 1A is a sectional view of the pin joint device, Figure 1B is a partially cutaway side view of the seal assembly, and Figure 1C is Figure B. A-
A sectional view, Figure 2 is a sectional view showing the pin connection procedure,
Figure 3 is a schematic side view of a hydraulic excavator, Figure 4 shows a conventional pin joint device, Figure A is a sectional view, Figure B is a partially cutaway side view of the seal assembly, and Figure C is a side view of the seal assembly. FIG. 5 is a sectional view taken along the line A-A in the figure, and shows a method for connecting the pins. 1...Support arm, 2...Boss, 3, 5a, b
...Pin hole, 4...Bucket mounting bracket, 6
...Joint pin, 8...Cover, 10a, b...Gap, 11...Tapered groove, 12a, b, 112a,
b... Seal assembly, 13, 113... Circular ring, 14, 114... Notch opening, 15, 11
5... Seal seat, 115a... Outer membrane, 115b
...Inner peripheral membrane, 115c...Ring-shaped hanger, 1
6...retainer, 17...shim.

Claims

[Scope of utility model registration request]

By pressing the cover by adjusting the shim on one end side, the supporting side boss member is fitted between both sides of the supported side bifurcated bracket member, into which a flangeed sleeve movable in the axial direction is inserted. The joint pins are inserted into the alignment pin holes of these members to be hingedly connected, and a V-shaped taper is formed between the relative rotational distances formed between both sides of the support side boss member and the inner side of the supported forked bracket member. In a pin joint in which a ring groove is formed and a seal member is sandwiched in the tapered ring groove, a ring-shaped hanger is protruded from the side of a circular ring made of a metal material with a cutout opening as the seal member. It consists of a seal seat made of an elastic resin material and is covered with a
When connecting with pins, a front seal member ring-shaped hanger is attached in advance to the outer peripheral surface of each inner end of the sleeve on one end side and the other end side of the bifurcated bracket member on the supported side. A pin joint device for a work machine, characterized in that an assembly is held and then connected with a pin.