JPS61160302U - - Google Patents
Info
- Publication number
- JPS61160302U JPS61160302U JP4402585U JP4402585U JPS61160302U JP S61160302 U JPS61160302 U JP S61160302U JP 4402585 U JP4402585 U JP 4402585U JP 4402585 U JP4402585 U JP 4402585U JP S61160302 U JPS61160302 U JP S61160302U
- Authority
- JP
- Japan
- Prior art keywords
- side oil
- motor
- oil
- oil passage
- connect
- 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
- 238000011084 recovery Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims 1
- 230000007935 neutral effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Fluid-Pressure Circuits (AREA)
- Operation Control Of Excavators (AREA)
- Control And Safety Of Cranes (AREA)
- Jib Cranes (AREA)
Description
図面は本考案の実施例を示す回路図である。
１は油圧モータ、２，３はモータ側油路、４は
方向制御弁、５，６は中間側油路、７は操作弁、
８は圧油供給側油路、９は回収側油路、１０，１
１はブレーキ用リリーフ弁、１４，１５は切換弁
、１６は油圧ポンプ、１７はタンクを示す。
The drawing is a circuit diagram showing an embodiment of the present invention. 1 is a hydraulic motor, 2 and 3 are motor side oil passages, 4 is a direction control valve, 5 and 6 are intermediate side oil passages, 7 is an operation valve,
8 is a pressure oil supply side oil path, 9 is a recovery side oil path, 10, 1
1 is a brake relief valve, 14 and 15 are switching valves, 16 is a hydraulic pump, and 17 is a tank.
Claims (1)
路に方向制御弁を介して第１、第２の中間側油路
を接続し、該中間側油路に操作弁を介して圧油供
給側油路と回収側油路を接続し、両モータ側油路
の間を１組のブレーキ用リリーフ弁を介して接続
し、かつポンプ側油路と中間側油路を切換弁を介
して接続し、上記操作弁の切換状態に応じて上記
第１のモータ側油路と第１の中間側油路、第２の
モータ側油路と第１の中間側油路を択一的に連通
させると共に中立位置で両中間側油路を連通させ
るようにし、上記切換弁によつてモータ側油路か
ら中間側油路への油の流れを阻止する位置と許す
位置に切り換え得るようにしたことを特徴とする
建設機械の旋回油圧回路。 First and second intermediate oil passages are connected to first and second motor side oil passages communicating with the hydraulic motor via a directional control valve, and pressure oil is supplied to the intermediate oil passages via an operating valve. Connect the side oil path and recovery side oil path, connect both motor side oil paths through a set of brake relief valves, and connect the pump side oil path and intermediate side oil path through a switching valve. and selectively communicates the first motor-side oil passage with the first intermediate oil passage, and the second motor-side oil passage with the first intermediate oil passage depending on the switching state of the operating valve. In addition, both the intermediate oil passages are made to communicate with each other at the neutral position, and the switching valve can be switched between a position that blocks oil flow from the motor side oil passage to the intermediate oil passage and a position that allows it. Features a swing hydraulic circuit for construction machinery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4402585U JPS61160302U (en) | 1985-03-27 | 1985-03-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4402585U JPS61160302U (en) | 1985-03-27 | 1985-03-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61160302U true JPS61160302U (en) | 1986-10-04 |
Family
ID=30556229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4402585U Pending JPS61160302U (en) | 1985-03-27 | 1985-03-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61160302U (en) |
-
1985
- 1985-03-27 JP JP4402585U patent/JPS61160302U/ja active Pending
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