JPS6430904A - Shock preventing device for oil hydraulic motor driving circuit having counterbalance valve - Google Patents

Shock preventing device for oil hydraulic motor driving circuit having counterbalance valve

Info

Publication number
JPS6430904A
JPS6430904A JP18444587A JP18444587A JPS6430904A JP S6430904 A JPS6430904 A JP S6430904A JP 18444587 A JP18444587 A JP 18444587A JP 18444587 A JP18444587 A JP 18444587A JP S6430904 A JPS6430904 A JP S6430904A
Authority
JP
Japan
Prior art keywords
valve
counterbalance valve
driving circuit
hydraulic motor
motor driving
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
JP18444587A
Other languages
Japanese (ja)
Inventor
Takeaki Nozaki
Tokuichi Umemoto
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.)
Yanmar Co Ltd
Original Assignee
Yanmar Diesel Engine Co 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 Yanmar Diesel Engine Co Ltd filed Critical Yanmar Diesel Engine Co Ltd
Priority to JP18444587A priority Critical patent/JPS6430904A/en
Publication of JPS6430904A publication Critical patent/JPS6430904A/en
Pending legal-status Critical Current

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  • Fluid-Pressure Circuits (AREA)

Abstract

PURPOSE:To reduce a shock in the time of starting and stopping by connecting a bleed-off valve between a pair of main passages through throttles. CONSTITUTION:A bleed-off valve 22, which provides a slidable piston 21 in the inside, is connected between a pair of main passages 1, 2, having a counterbalance valve 13, through throttles 25, 26. By the constitution thus obtained, when a selector valve 5 is switched, pressure oil in a supply side is allowed to flow into pressure oil chambers 23, 24 of the bleed-off valve 22 through the throttles 25, 26, and the counterbalance valve 13 slowly performs its switching because a rise of pressure in the main passages 1, 2 can be suppressed. Accordingly, a shock is reduced in the time of starting and stopping.
JP18444587A 1987-07-22 1987-07-22 Shock preventing device for oil hydraulic motor driving circuit having counterbalance valve Pending JPS6430904A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18444587A JPS6430904A (en) 1987-07-22 1987-07-22 Shock preventing device for oil hydraulic motor driving circuit having counterbalance valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18444587A JPS6430904A (en) 1987-07-22 1987-07-22 Shock preventing device for oil hydraulic motor driving circuit having counterbalance valve

Publications (1)

Publication Number Publication Date
JPS6430904A true JPS6430904A (en) 1989-02-01

Family

ID=16153272

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18444587A Pending JPS6430904A (en) 1987-07-22 1987-07-22 Shock preventing device for oil hydraulic motor driving circuit having counterbalance valve

Country Status (1)

Country Link
JP (1) JPS6430904A (en)

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