JPS6410559U

JPS6410559U -

Info

Publication number: JPS6410559U
Application number: JP10506587U
Authority: JP
Priority date: 1987-07-07
Filing date: 1987-07-07
Publication date: 1989-01-20

Description

[Brief explanation of the drawing]

第１図はこの考案にかかる第１実施例旋回縮小
装置を装備した油圧シヨベルの全体側面図、第２
図は第１図のＣ部詳細図、第３図は第２図のＤよ
り見た一部断面正面図、第４図はこの考案にかか
る第１実施例旋回縮小装置を旋回縮小状態にした
ときの油圧シヨベルの全体側面図、第５図は第４
図のＦ部詳細図、第６図は第５図のＧより見た一
部断面正面図、第７図はこの考案にかかる第２実
施例旋回縮小装置の要部断面図、第８図は第７図
のＪより見た図、第９図はこの考案にかかる第３
実施例旋回縮小装置の要部側面図、第１０図は第
９図のＫより見た正面図、第１１図は従来技術旋
回縮小装置を装備した油圧シヨベルの全体側面図
である。１，１′，１６，２４……旋回縮小装置、３，
３′……上部旋回体、４，４′，１７……メイン
フレーム、８……ブームシリンダ、１１，２０…
…プレート部材、１２，２１……ピン穴部、１３
……固定ピン。 Figure 1 is an overall side view of a hydraulic excavator equipped with a swing reduction device according to the first embodiment of this invention;
The figure is a detailed view of section C in Figure 1, Figure 3 is a partially sectional front view seen from D in Figure 2, and Figure 4 shows the first embodiment of the swing reduction device according to this invention in the swing reduction state. Figure 5 is an overall side view of the hydraulic excavator at the time.
FIG. 6 is a partially sectional front view as seen from G in FIG. The view from J in Figure 7, and Figure 9 are the third views of this invention.
FIG. 10 is a side view of a main part of the swing reduction device according to the embodiment, a front view seen from K in FIG. 9, and FIG. 11 is an overall side view of a hydraulic excavator equipped with the conventional swing reduction device. 1, 1', 16, 24...Swivel reduction device, 3,
3'... Upper revolving body, 4, 4', 17... Main frame, 8... Boom cylinder, 11, 20...
... Plate member, 12, 21 ... Pin hole part, 13
...Fixed pin.

Claims

[Scope of utility model registration request]

In a hydraulic excavator in which a boom is attached to the front part of the upper revolving body and the boom can be raised and lowered by a boom cylinder, a pair of plate members are attached to the front part of the main frame of the upper revolving body in parallel in the longitudinal direction, and The plate member is removable from the main frame, and a pin hole is formed in the plate member so as to be biased toward the bottom of the plate member, and the base end of the boom cylinder is pivotally attached to the pin hole with a fixed pin. A swing reduction device for a hydraulic excavator, in which the pin hole portion of the plate member can be fixed at an upper position by changing the mounting angle of the plate member when the swing reduction specification is used.