JPH01168002U - - Google Patents
Info
- Publication number
- JPH01168002U JPH01168002U JP6393988U JP6393988U JPH01168002U JP H01168002 U JPH01168002 U JP H01168002U JP 6393988 U JP6393988 U JP 6393988U JP 6393988 U JP6393988 U JP 6393988U JP H01168002 U JPH01168002 U JP H01168002U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- passage
- travel
- inlet port
- port side
- 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
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Operation Control Of Excavators (AREA)
- Fluid-Pressure Circuits (AREA)
Description
第1図は本考案の実施例を示す回路図、第2図
は従来の回路図である。
20はポンプ、20aは吐出路、21はフロー
デバイダー、22は第1路、23は第2路、24
は左走行弁、25は左弁群、26はグレード弁、
27は右走行弁、28は右弁群、33は絞り、3
4は逆止弁。
FIG. 1 is a circuit diagram showing an embodiment of the present invention, and FIG. 2 is a conventional circuit diagram. 20 is a pump, 20a is a discharge path, 21 is a flow divider, 22 is a first path, 23 is a second path, 24
is the left running valve, 25 is the left valve group, 26 is the grade valve,
27 is the right traveling valve, 28 is the right valve group, 33 is the throttle, 3
4 is a check valve.
Claims (1)
ター21で第1路22と第2路23に分岐し、該
第1路22に左走行弁24と走行以外の左弁群2
5を設け、前記第2路23に右走行弁27と別の
走行以外の右弁群28を設けると共に、前記左走
行弁24の入口ポート側と右走行弁27の入口ポ
ート側を、絞り33を介して連通したことを特徴
とする油圧回路。 (2) ポンプ20の吐出路20aをフローデバイ
ダー21で第1路22と第2路23に分岐し、該
第1路22に左走行弁24と走行以外の左弁群2
5を設け、前記第2路23にブレード弁26と右
走行弁27と走行以外の右弁群28を設けると共
に、前記左走行弁24の入口ポート側と右走行弁
27の入口ポート側を、絞り33を介して連通す
るとともにブレード弁26の入口ポートと左右走
行弁24,27の入口ポート側をブレード弁26
側から左右走行弁24,27側へは圧油が供給さ
れないように逆止弁34を介して接続することを
特徴とする油圧回路。[Claims for Utility Model Registration] (1) The discharge passage 20a of the pump 20 is branched into a first passage 22 and a second passage 23 by a flow divider 21, and the first passage 22 has a left travel valve 24 and a left travel valve other than the left travel valve. Valve group 2
5, and the right travel valve 27 and a right valve group 28 other than travel, which are different from the right travel valve 27, are provided in the second passage 23, and the inlet port side of the left travel valve 24 and the inlet port side of the right travel valve 27 are connected to a throttle 33. A hydraulic circuit characterized by communicating through. (2) The discharge passage 20a of the pump 20 is branched into a first passage 22 and a second passage 23 by a flow divider 21, and the first passage 22 is provided with a left traveling valve 24 and a left valve group 2 other than traveling.
5, and the second passage 23 is provided with a blade valve 26, a right travel valve 27, and a right valve group 28 other than travel, and the inlet port side of the left travel valve 24 and the inlet port side of the right travel valve 27 are provided. The inlet port of the blade valve 26 and the inlet port side of the left and right traveling valves 24 and 27 are connected to each other through the throttle 33 and the inlet port of the blade valve 26 is connected to the inlet port of the blade valve 26
A hydraulic circuit characterized in that the hydraulic circuit is connected to the left and right travel valves 24 and 27 through a check valve 34 so that pressure oil is not supplied from the side to the left and right traveling valves 24 and 27.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6393988U JPH01168002U (en) | 1988-05-17 | 1988-05-17 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6393988U JPH01168002U (en) | 1988-05-17 | 1988-05-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH01168002U true JPH01168002U (en) | 1989-11-27 |
Family
ID=31289424
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6393988U Pending JPH01168002U (en) | 1988-05-17 | 1988-05-17 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH01168002U (en) |
-
1988
- 1988-05-17 JP JP6393988U patent/JPH01168002U/ja active Pending