JPH01165303U - - Google Patents
Info
- Publication number
- JPH01165303U JPH01165303U JP6156988U JP6156988U JPH01165303U JP H01165303 U JPH01165303 U JP H01165303U JP 6156988 U JP6156988 U JP 6156988U JP 6156988 U JP6156988 U JP 6156988U JP H01165303 U JPH01165303 U JP H01165303U
- Authority
- JP
- Japan
- Prior art keywords
- swing
- pressure
- valve
- operating
- compensation 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
- 230000007935 neutral effect Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Operation Control Of Excavators (AREA)
- Fluid-Pressure Circuits (AREA)
Description
第１図は本考案一実施例の構成説明図、第２図
は旋回圧力補償弁の縦断面図である。 １は操作弁、６は旋回モータ、９は旋回圧力補
償弁、３０はコントローラ、３２は電磁弁、Ａは
旋回モータ操作回路、Ｂは戻り回路、Ｃは制御回
路。
は旋回圧力補償弁の縦断面図である。 １は操作弁、６は旋回モータ、９は旋回圧力補
償弁、３０はコントローラ、３２は電磁弁、Ａは
旋回モータ操作回路、Ｂは戻り回路、Ｃは制御回
路。
Claims (1)
- 旋回レバーの操作により操作弁を切換作動し旋
回モータを制御する旋回モータ操作弁からの油の
戻り回路に可変型の旋回圧力補償弁を設け、パイ
ロツト圧を駐車ブレーキ装置に導入して駐車ブレ
ーキ解除を行うと共に前記パイロツト圧を旋回圧
力補償弁に導入してこの旋回圧力補償弁を作動し
前記戻り回路に背圧を発生させると共に旋回中立
操作時には一定時間差をおいて背圧発生を除去す
るようにしたことを特徴とする旋回モータの油圧
操作装置。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6156988U JPH01165303U (ja) | 1988-05-12 | 1988-05-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6156988U JPH01165303U (ja) | 1988-05-12 | 1988-05-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01165303U true JPH01165303U (ja) | 1989-11-20 |
Family
ID=31287228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6156988U Pending JPH01165303U (ja) | 1988-05-12 | 1988-05-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01165303U (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014141993A (ja) * | 2013-01-22 | 2014-08-07 | Hitachi Constr Mach Co Ltd | 建設機械の油圧駆動装置 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4835669A (ja) * | 1971-09-02 | 1973-05-25 | ||
| JPS5257479A (en) * | 1975-11-07 | 1977-05-11 | Hitachi Constr Mach Co Ltd | Control circuit and control valve of an oil pressure driving equipment with a brake |
-
1988
- 1988-05-12 JP JP6156988U patent/JPH01165303U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4835669A (ja) * | 1971-09-02 | 1973-05-25 | ||
| JPS5257479A (en) * | 1975-11-07 | 1977-05-11 | Hitachi Constr Mach Co Ltd | Control circuit and control valve of an oil pressure driving equipment with a brake |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014141993A (ja) * | 2013-01-22 | 2014-08-07 | Hitachi Constr Mach Co Ltd | 建設機械の油圧駆動装置 |