JPS63119905U - - Google Patents
Info
- Publication number
- JPS63119905U JPS63119905U JP1199887U JP1199887U JPS63119905U JP S63119905 U JPS63119905 U JP S63119905U JP 1199887 U JP1199887 U JP 1199887U JP 1199887 U JP1199887 U JP 1199887U JP S63119905 U JPS63119905 U JP S63119905U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic
- control valve
- control valves
- valves
- hydraulic control
- 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 3
Landscapes
- Fluid-Pressure Circuits (AREA)
Description
第１図は本考案の実施例を示す油圧回路図、第
２図ないし第５図はそれぞれ作動状態を示す油圧
回路図、第６図は他の実施例を示す油圧回路図で
ある。
１……第１ポンプ、２……第２ポンプ、３……
第１モータ、４……第２モータ、５……第１制御
弁、６……第２制御弁、７，７′……分流弁、８
……第３制御弁、９……第４制御弁、１０……タ
ンク、１１……パイロツト油圧ポンプ、１２……
第１リモコン弁、１３……第２リモコン弁。
FIG. 1 is a hydraulic circuit diagram showing an embodiment of the present invention, FIGS. 2 to 5 are hydraulic circuit diagrams showing operating states, and FIG. 6 is a hydraulic circuit diagram showing another embodiment. 1...First pump, 2...Second pump, 3...
First motor, 4... Second motor, 5... First control valve, 6... Second control valve, 7, 7'... Diversion valve, 8
...Third control valve, 9...Fourth control valve, 10...Tank, 11...Pilot hydraulic pump, 12...
1st remote control valve, 13...2nd remote control valve.
Claims (1)
第２油圧ポンプに第２油圧制御弁が接続され、第
１、第２油圧制御弁に第１油圧モータが合流式に
接続されているとともに、分流弁の入力ポートが
シリーズ式に接続され、この分流弁の二つの出力
ポートのうち第１出力ポートに第３油圧制御弁が
接続され、第２出力ポートに第４油圧制御弁が接
続され、第３、第４油圧制御弁に第２油圧モータ
が合流式に接続され、第１、第２油圧制御弁を作
動させる第１リモコン弁と、第３、第４油圧制御
弁を作動させる第２リモコン弁とを有し、第１リ
モコン弁の操作量が小さい第１速の範囲では第１
油圧制御弁が切替えられ、第１リモコン弁の操作
量が大きい第２速の範囲では第１、第２油圧制御
弁の双方が切替えられるように第１、第２油圧制
御弁の切替制御圧力が設定され、一方、第２リモ
コン弁の操作量が小さい第１速の範囲では第３油
圧制御弁が切替えられ、第２リモコン弁の操作量
が大きい第２速の範囲では第３、第４油圧制御弁
の双方が切替えられるように第３、第４油圧制御
弁の切替制御圧力が設定されていることを特徴と
する油圧モータの制御回路。 A first hydraulic control valve is connected to the first hydraulic pump,
A second hydraulic control valve is connected to the second hydraulic pump, a first hydraulic motor is connected to the first and second hydraulic control valves in a confluence manner, and input ports of the branch valves are connected in series. A third hydraulic control valve is connected to the first output port of the two output ports of the diversion valve, a fourth hydraulic control valve is connected to the second output port, and a second hydraulic motor is connected to the third and fourth hydraulic control valves. are connected in a merged manner, and have a first remote control valve that operates the first and second hydraulic control valves, and a second remote control valve that operates the third and fourth hydraulic control valves, and the operation of the first remote control valve In the first speed range where the amount is small, the first
The switching control pressures of the first and second hydraulic control valves are set so that the hydraulic control valves are switched and both the first and second hydraulic control valves are switched in the second speed range where the operation amount of the first remote control valve is large. On the other hand, in the first speed range where the operation amount of the second remote control valve is small, the third hydraulic pressure control valve is switched, and in the second speed range where the operation amount of the second remote control valve is large, the third and fourth hydraulic pressure control valves are switched. A control circuit for a hydraulic motor, characterized in that the switching control pressures of the third and fourth hydraulic control valves are set so that both of the control valves are switched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1199887U JPS63119905U (en) | 1987-01-29 | 1987-01-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1199887U JPS63119905U (en) | 1987-01-29 | 1987-01-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63119905U true JPS63119905U (en) | 1988-08-03 |
Family
ID=30799718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1199887U Pending JPS63119905U (en) | 1987-01-29 | 1987-01-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63119905U (en) |
-
1987
- 1987-01-29 JP JP1199887U patent/JPS63119905U/ja active Pending