JPS6119065U

JPS6119065U - Swivel operation mechanism of double swing backhoe

Info

Publication number: JPS6119065U
Application number: JP10301884U
Authority: JP
Inventors: 陽一折口
Original assignee: 株式会社ジャパニック
Priority date: 1984-07-06
Filing date: 1984-07-06
Publication date: 1986-02-04
Also published as: JPH0324688Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は、本考案による旋回操作機構を有する二重旋回
バツクホーの全体側面図、、第２図は、同油圧動力及び
制御機構を示すブロック図、第３図は、同油圧回路図、
第４図は、同要部拡大側明図（一部切欠）、第５図は、
同要部正面図（一部切欠）、第６図は、同要部説萌図。Ａ：二重旋回バツクホー、Ｂ：掘削作業部、Ｃ：操作部
、Ｋ−３：係合ピン、Ｌ，Ｌ−１：上下リンク機構、２
：１ｍフレーム、４：機体フレーム、７：上部回転台、
１４．１５：上下部旋回油圧−モータ、２２，２３：上
下油圧方向制御弁、２６，２７：上下セレクタバルブ、
２８，２９：上下部旋回油圧ポンプ。FIG. 1 is an overall side view of a double-swinging backhoe having a swing operation mechanism according to the present invention, FIG. 2 is a block diagram showing the hydraulic power and control mechanism, and FIG. 3 is a hydraulic circuit diagram of the same.
Figure 4 is an enlarged side view of the same main part (partially cut away), Figure 5 is
A front view (partly cut away) of the same main part, and Figure 6 is a preliminary drawing of the main part. A: Double swing backhoe, B: Excavation work part, C: Operation part, K-3: Engagement pin, L, L-1: Vertical link mechanism, 2
: 1m frame, 4: Airframe frame, 7: Upper rotating table,
14.15: Vertical and lower swing hydraulic pressure-motor, 22, 23: Vertical hydraulic directional control valve, 26, 27: Vertical selector valve,
28, 29: Upper and lower swing hydraulic pump.

Claims

[Scope of utility model registration request]

A body frame 4 is pivotally supported on the traveling frame 2 so as to be able to turn left and right by a lower swing hydraulic motor 15, and an upper rotary table 7 supporting an excavation work part B is also pivotally connected to the body frame 4. A double swing backhoe A is configured so that it can swing left and right by the upper swing hydraulic motor i14, and the motor 14
．． 15 and upper and lower swing hydraulic pumps 28 and 29 are independently connected to each other, and vertical hydraulic directional control valves 22 and 23 and upper and lower selector valves 26 and 27 for controlling the operation of the motors 14 and 15, Operation interlocking devices are interposed between the pumps 28, 29 and the motors 14, 15, and are interposed between the operation section C for operating the control valves 22, 23 and the control valves 22, 23, respectively. By inserting and removing the engaging pin K-3 in the middle of the vertical link mechanisms L and L-1, the operation of the vertical link mechanisms L and L-1 can be selected between cooperative operation and independent operation. A swing operation mechanism for a double swing backhoe consisting of: