JPS56131806A - Oil hydraulic circuit for driving oil hydraulic cylinder - Google Patents
Oil hydraulic circuit for driving oil hydraulic cylinderInfo
- Publication number
- JPS56131806A JPS56131806A JP3158780A JP3158780A JPS56131806A JP S56131806 A JPS56131806 A JP S56131806A JP 3158780 A JP3158780 A JP 3158780A JP 3158780 A JP3158780 A JP 3158780A JP S56131806 A JPS56131806 A JP S56131806A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- oil hydraulic
- chamber
- directional control
- control valve
- 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
Links
Landscapes
- Fluid-Pressure Circuits (AREA)
Abstract
PURPOSE: To make it possible to use a small-sized directional control valve in the titled circuit by a method wherin most of the return oil in the cylinder is returned to a tank through a bypass duct provided to connect to bottom side chamber of the oil hydraulic cylinder with the tank.
CONSTITUTION: When the directional control valve is located at position A, the delivery oil of an oil hydraulic pump 2 is supplied to the chamber 1a on the bottom side of the hydraulic cylinder 1 through a non-return valve 9 to expand the cylinder 1. Then, when the directional control valve 3 is located at position B, pressure oil is supplied to the chamber 1b on a rod side and the oil an in the chamber 1a on the bottom side is returned to a tank 4 through a throttle 8 to shrink the cylinder 1. At this time there occurs a difference of pressure between the front and the back of the throttle 8, a throttle valve 6 is open and most of the return oil from the chamber 1a on the bottom side is returned to the tank 4 through a bypass duct 5. Accordingly, the quantity of the return oil passing through the directional control valve 3 is so small that the loss of pressure can be reduced in the valve 3 through the directional control valve 3 is not large.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3158780A JPS56131806A (en) | 1980-03-14 | 1980-03-14 | Oil hydraulic circuit for driving oil hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3158780A JPS56131806A (en) | 1980-03-14 | 1980-03-14 | Oil hydraulic circuit for driving oil hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56131806A true JPS56131806A (en) | 1981-10-15 |
Family
ID=12335313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3158780A Pending JPS56131806A (en) | 1980-03-14 | 1980-03-14 | Oil hydraulic circuit for driving oil hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56131806A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305223A (en) * | 2011-05-16 | 2012-01-04 | 江门市蒙德电气有限公司 | Hydraulic control device and control method thereof |
| CN102705285A (en) * | 2012-05-21 | 2012-10-03 | 南通安捷机械有限公司 | Novel oil passage |
| CN103107652A (en) * | 2013-01-29 | 2013-05-15 | 合肥海德数控液压设备有限公司 | Hydraulic control system of digital large-range ultra-high precision coil trueing machine |
| CN104314893A (en) * | 2014-08-27 | 2015-01-28 | 南京创贝高速传动机械有限公司 | Hydraulic servo control test bed system |
| CN104405701A (en) * | 2014-09-18 | 2015-03-11 | 芜湖高昌液压机电技术有限公司 | Proportional pressure regulating loop for lifter |
| CN106522848A (en) * | 2015-09-10 | 2017-03-22 | 盐城市同昌机械有限公司 | Well drill derrick hydraulic hoisting device |
| CN106743789A (en) * | 2016-12-06 | 2017-05-31 | 上海宏钢电站设备铸锻有限公司 | The ladle of vacuum-oxygen decarbonizing stove is slagged tap base guide overturning jacking apparatus |
| CN106762880A (en) * | 2016-12-28 | 2017-05-31 | 中国航空工业集团公司西安飞机设计研究所 | A kind of airplane tail pillar hydraulic pressure folding and unfolding control system |
-
1980
- 1980-03-14 JP JP3158780A patent/JPS56131806A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305223A (en) * | 2011-05-16 | 2012-01-04 | 江门市蒙德电气有限公司 | Hydraulic control device and control method thereof |
| CN102705285A (en) * | 2012-05-21 | 2012-10-03 | 南通安捷机械有限公司 | Novel oil passage |
| CN103107652A (en) * | 2013-01-29 | 2013-05-15 | 合肥海德数控液压设备有限公司 | Hydraulic control system of digital large-range ultra-high precision coil trueing machine |
| CN104314893A (en) * | 2014-08-27 | 2015-01-28 | 南京创贝高速传动机械有限公司 | Hydraulic servo control test bed system |
| CN104405701A (en) * | 2014-09-18 | 2015-03-11 | 芜湖高昌液压机电技术有限公司 | Proportional pressure regulating loop for lifter |
| CN106522848A (en) * | 2015-09-10 | 2017-03-22 | 盐城市同昌机械有限公司 | Well drill derrick hydraulic hoisting device |
| CN106743789A (en) * | 2016-12-06 | 2017-05-31 | 上海宏钢电站设备铸锻有限公司 | The ladle of vacuum-oxygen decarbonizing stove is slagged tap base guide overturning jacking apparatus |
| CN106762880A (en) * | 2016-12-28 | 2017-05-31 | 中国航空工业集团公司西安飞机设计研究所 | A kind of airplane tail pillar hydraulic pressure folding and unfolding control system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS57116913A (en) | Hydraulic drive unit for single rod type cylinder | |
| JPS56131806A (en) | Oil hydraulic circuit for driving oil hydraulic cylinder | |
| JPS56104186A (en) | Flow controller for power steering working fluid | |
| JPS5311306A (en) | Pump unit | |
| JPS5359132A (en) | Over-head valve v-shaped diesel engine | |
| JPS5718867A (en) | Pressure control valve | |
| JPS56124704A (en) | Regenerating circuit in fluidic pressure circuit | |
| JPS5768543A (en) | Control device for engine | |
| JPS56127803A (en) | Hydraulic circuit for driving single rod cyclinder | |
| JPS5698562A (en) | Fuel injecting device for use in internal combustion engine | |
| JPS53140479A (en) | Hydraulic pressure controller | |
| JPS552830A (en) | Discharge control valve with pressure compensation | |
| JPS5751577A (en) | Power steering device | |
| JPS5740173A (en) | Spool moving method for counter balance valve and device for the same | |
| JPS5783702A (en) | Fluid pressure differential circuit | |
| JPS5620803A (en) | Hydraulic circuit | |
| JPS57116969A (en) | Oil pressure closed circuit driven by hydraulic motor | |
| JPS5527510A (en) | Apparatus for accumulating pressure in accumulator | |
| JPS5447974A (en) | Device for buffering hydraulic cylinder | |
| JPS5532817A (en) | Hydraulic circuit for hydraulic shovel | |
| JPS56160403A (en) | Oil pressure circuit of intensifying cylinder for opening mold in clamp molding device | |
| JPS5614602A (en) | Hydraulic pressure unit | |
| JPS54152765A (en) | Oil pressure circuit | |
| JPS5686203A (en) | Unloading circuit | |
| JPS5566687A (en) | Capacity control device for variable capacity type oil pressure pump |