JPS58102807U

JPS58102807U - Simultaneous and individual hydraulic control circuit for multiple hydraulic actuators

Info

Publication number: JPS58102807U
Application number: JP118582U
Authority: JP
Inventors: 米田　茂記
Original assignee: 株式会社多田野鉄工所
Priority date: 1982-01-06
Filing date: 1982-01-06
Publication date: 1983-07-13
Also published as: JPH0343445Y2

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図は本考案実施例に係る油圧制御面路を有するジヤ
ツキ装置を装着したクレーン付き貨物自動車の全体図、
第２図は第１図のジヤツキ装置の油圧制御回路図、第３
図は第１図の■部拡大斜視図である。５．６・・・油圧アクチュエータ、１１・・・同時制御
用切換弁、１２．１３・・・個別制御用切換弁、４０・
・・油圧供給源、４１・・・第１ダブルパイロツトチエ
ツクバルブ、４２・・・第２り′プルパイロットチェッ
クバルブ、７０・−・第１油管路、７１・・・第２油管
路、７２・・・第３油管路、７３・・・第４油管路、Ａ
・・・切換弁アッセンブリー。FIG. 1 is an overall view of a crane-equipped truck equipped with a jacking device having a hydraulic control surface according to an embodiment of the present invention;
Figure 2 is a hydraulic control circuit diagram of the jacking device in Figure 1;
The figure is an enlarged perspective view of the section ■ in FIG. 1. 5.6...Hydraulic actuator, 11...Switching valve for simultaneous control, 12.13...Switching valve for individual control, 40.
...Hydraulic supply source, 41...First double pilot check valve, 42...Second pull pilot check valve, 70...First oil pipe line, 71...Second oil pipe line, 72... ...Third oil pipe line, 73...Fourth oil pipe line, A
...Switching valve assembly.

Claims

[Scope of utility model registration request]

a plurality of hydraulic actuators 5.6; each hydraulic actuator 5.6; -6 individual control switching valves 1 of the same number as each hydraulic actuator 5.6;
2.13 and one simultaneous-side control switching valve 11 for simultaneously controlling each of the hydraulic actuators 5.6, connected to a hydraulic pressure supply source 40, and a switching valve assembly A for controlling the individual hydraulic actuators 5.6. The switching valves 12, 13 and the respective hydraulic actuators 5, 6 are connected to first oil pipes 70'.
and a second oil pipe line 71, and each hydraulic actuator 5.6 is connected to the simultaneous control switching valve 11 by a third oil pipe line 72 connected to the first oil pipe line 70 and the second oil pipe line. 71 via a fourth oil pipe line 73, and further, the third oil pipe line 72 and the fourth oil pipe line 73 are connected to each other.
A simultaneous and individual hydraulic control circuit for a plurality of hydraulic actuators, characterized in that a first double pilot valve 41 and a second double pilot check valve 42 are respectively interposed therein.