JPS56127803A - Hydraulic circuit for driving single rod cyclinder - Google Patents
Hydraulic circuit for driving single rod cyclinderInfo
- Publication number
- JPS56127803A JPS56127803A JP3074980A JP3074980A JPS56127803A JP S56127803 A JPS56127803 A JP S56127803A JP 3074980 A JP3074980 A JP 3074980A JP 3074980 A JP3074980 A JP 3074980A JP S56127803 A JPS56127803 A JP S56127803A
- Authority
- JP
- Japan
- Prior art keywords
- arrow
- hydraulic pump
- load
- cylinder
- speed
- 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.)
- Granted
Links
Abstract
PURPOSE: To make constant the speed of the cylinder irrespective of the direction of a load by providing an auxiliary hydraulic pump interlocking with a main hydraulic pump and connecting one of the discharge port of the auxiliary hydraulic pump to the head side of a single rod cylinder.
CONSTITUTION: A double-inclined auxiliary hydraulic pump 17 is provided. This auxilary hydraulic pump 17 operates in linkage with a main hydraulic pump 1, and one of discharge ports of the auxiliary hydraulic pump 17 is connected to the head side of a single rod cylinder 2. Accordingly, the ratio between the rod side area AR and the head side area AH is set at 1:2. The driving direction is indicated by the arrow A, the direction of the load by the arrow A, and the driving direction by the arrow B and the direction of the load by the arrow A, the discharge quantity is set at Q. Then, the speed of the cylinder becomes Q/AR. When the driving direction is indicated by the arrow A, the direction of the load by the arrow B and the driving direction by the arrow B and the direction of the load by the arrow B, the speed of the cylinder becomed 2Q/AH=Q/AR. Therefore, the speed of the cylinder becomes constant irrespective of the direction of the load.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3074980A JPS5939601B2 (en) | 1980-03-11 | 1980-03-11 | Single rod cylinder drive hydraulic circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3074980A JPS5939601B2 (en) | 1980-03-11 | 1980-03-11 | Single rod cylinder drive hydraulic circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56127803A true JPS56127803A (en) | 1981-10-06 |
JPS5939601B2 JPS5939601B2 (en) | 1984-09-25 |
Family
ID=12312325
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3074980A Expired JPS5939601B2 (en) | 1980-03-11 | 1980-03-11 | Single rod cylinder drive hydraulic circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5939601B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5934002A (en) * | 1982-08-21 | 1984-02-24 | Hitachi Constr Mach Co Ltd | Hydraulic closed circuit device |
JPS60136604A (en) * | 1983-12-26 | 1985-07-20 | Hitachi Constr Mach Co Ltd | Drive and control hydraulic circuit of working machine |
WO2015030234A1 (en) * | 2013-09-02 | 2015-03-05 | 日立建機株式会社 | Drive device for work machine |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62225202A (en) * | 1986-03-27 | 1987-10-03 | Ulvac Corp | Centrifugal evaporator |
JP5954927B2 (en) * | 2010-11-15 | 2016-07-20 | 日邦興産株式会社 | Hydraulic device |
-
1980
- 1980-03-11 JP JP3074980A patent/JPS5939601B2/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5934002A (en) * | 1982-08-21 | 1984-02-24 | Hitachi Constr Mach Co Ltd | Hydraulic closed circuit device |
JPS60136604A (en) * | 1983-12-26 | 1985-07-20 | Hitachi Constr Mach Co Ltd | Drive and control hydraulic circuit of working machine |
JPH0340242B2 (en) * | 1983-12-26 | 1991-06-18 | ||
WO2015030234A1 (en) * | 2013-09-02 | 2015-03-05 | 日立建機株式会社 | Drive device for work machine |
JP2015048899A (en) * | 2013-09-02 | 2015-03-16 | 日立建機株式会社 | Apparatus for driving working machine |
CN105074230A (en) * | 2013-09-02 | 2015-11-18 | 日立建机株式会社 | Drive device for work machine |
US9783960B2 (en) | 2013-09-02 | 2017-10-10 | Hitachi Construction Machinery Co., Ltd. | Driving device for work machine |
Also Published As
Publication number | Publication date |
---|---|
JPS5939601B2 (en) | 1984-09-25 |
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