JPS57161305A - Control device of oil hydraulically operated machine - Google Patents

Control device of oil hydraulically operated machine

Info

Publication number
JPS57161305A
JPS57161305A JP4540081A JP4540081A JPS57161305A JP S57161305 A JPS57161305 A JP S57161305A JP 4540081 A JP4540081 A JP 4540081A JP 4540081 A JP4540081 A JP 4540081A JP S57161305 A JPS57161305 A JP S57161305A
Authority
JP
Japan
Prior art keywords
lift
oil
pivotally supported
servo valves
cylinder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP4540081A
Other languages
Japanese (ja)
Inventor
Zenichi Takamura
Akiyuki Watanabe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WATABE SEIKOSHO KK
Kuroda Precision Industries Ltd
Original Assignee
WATABE SEIKOSHO KK
Kuroda Precision Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by WATABE SEIKOSHO KK, Kuroda Precision Industries Ltd filed Critical WATABE SEIKOSHO KK
Priority to JP4540081A priority Critical patent/JPS57161305A/en
Publication of JPS57161305A publication Critical patent/JPS57161305A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/22—Synchronisation of the movement of two or more servomotors

Abstract

PURPOSE:To correctly perform lateral synchronous control of a lift mount in an oil hydraulically operated machine operated through at least two oil hydraulic cylinders, by feeding pressure oil to each cylinder through a synchronized mechanism with individual servo valves. CONSTITUTION:In case of application to a device in which three mechanical servo valves 7a, 7b, 16 are used to parallelly lift a lift mounted to two oil hydraulic cylinders 4a, 4b, correcting cylinders 10a, 10b are pivotally supported to arms 91a, 91b at both sides of a synchronous lever 9 pivotally supported by bearings 8a, 8b to a frame. The top ends of a piston rod of each correcting cylinder 10a, 10b are adapted to stylus heads 71a, 71b of the servo valves 7a, 7b, while the bottom ends are provided with brackets 103a, 103b, and cooperatively actuated with adjustable stoppers 13a, 13b. Further the top end of a piston rod 111 of a control cylinder 11, pivotally supported to the lift mount 3, is pivotally mounted to a central arm 92 of the synchronous lever 9.
JP4540081A 1981-03-30 1981-03-30 Control device of oil hydraulically operated machine Pending JPS57161305A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4540081A JPS57161305A (en) 1981-03-30 1981-03-30 Control device of oil hydraulically operated machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4540081A JPS57161305A (en) 1981-03-30 1981-03-30 Control device of oil hydraulically operated machine

Publications (1)

Publication Number Publication Date
JPS57161305A true JPS57161305A (en) 1982-10-04

Family

ID=12718199

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4540081A Pending JPS57161305A (en) 1981-03-30 1981-03-30 Control device of oil hydraulically operated machine

Country Status (1)

Country Link
JP (1) JPS57161305A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105275903A (en) * 2015-11-25 2016-01-27 上海电气液压气动有限公司 Oil cylinder high-precision synchronous control hydraulic system of huge heavy equipment
CN105545845A (en) * 2015-11-25 2016-05-04 上海电气液压气动有限公司 Hydraulic driving device of oversized heavy device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105275903A (en) * 2015-11-25 2016-01-27 上海电气液压气动有限公司 Oil cylinder high-precision synchronous control hydraulic system of huge heavy equipment
CN105545845A (en) * 2015-11-25 2016-05-04 上海电气液压气动有限公司 Hydraulic driving device of oversized heavy device
CN105545845B (en) * 2015-11-25 2017-06-06 上海电气液压气动有限公司 A kind of fluid pressure drive device of super large jumbo

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