JPS63141263U - - Google Patents
Info
- Publication number
- JPS63141263U JPS63141263U JP3018487U JP3018487U JPS63141263U JP S63141263 U JPS63141263 U JP S63141263U JP 3018487 U JP3018487 U JP 3018487U JP 3018487 U JP3018487 U JP 3018487U JP S63141263 U JPS63141263 U JP S63141263U
- Authority
- JP
- Japan
- Prior art keywords
- actuator
- switching valve
- control circuit
- circuit systems
- construction vehicle
- 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
- 238000010276 construction Methods 0.000 claims 3
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Operation Control Of Excavators (AREA)
- Fluid-Pressure Circuits (AREA)
Description
図面第１図はこの考案の実施例を示す回路図で
ある。
ａ，ｂ…回路系統、Ｐ１，Ｐ２…ポンプ、３，
１２…走行モータを制御する切換弁、４…ドーザ
シリンダ等のアクチユエータを制御する切換弁、
６，１４…パラレル通路、１５，１６…チエツク
弁、１７…合流点、１８…絞り。
FIG. 1 is a circuit diagram showing an embodiment of this invention. a, b...Circuit system, P1 , P2 ...Pump, 3,
12... A switching valve that controls a travel motor, 4... A switching valve that controls an actuator such as a dozer cylinder,
6, 14... Parallel passage, 15, 16... Check valve, 17... Merging point, 18... Throttle.
Claims (1)
を接続し、これら両回路系統には、当該車両の走
行モータを制御する走行用切換弁を備えるととも
に、上記両回路系統のいずれか一方の回路系統に
ドーザシリンダ等のアクチユエータを制御する切
換弁を接続してなる建設車両の制御回路において
、上記両回路系統のパラレル通路を、ドーザシリ
ンダ等のアクチユエータを制御する上記切換弁内
で合流させ、この合流点によりも下流側に絞りを
設けるとともに、この合流点よりも上流側に、上
記ドーザシリンダ等のアクチユエータへの流通の
みを許容するチエツク弁を設けてなる建設車両の
制御回路。 One pump is connected to each of the pair of circuit systems, and both circuit systems are equipped with a travel switching valve that controls the travel motor of the vehicle, and one pump is connected to each of the circuit systems. In a construction vehicle control circuit in which a switching valve for controlling an actuator such as a dozer cylinder is connected to a control circuit for a construction vehicle, the parallel passages of both circuit systems are merged in the switching valve for controlling an actuator such as a dozer cylinder, and this merging is performed. A control circuit for a construction vehicle, which is provided with a throttle on the downstream side of the confluence point, and a check valve that allows flow only to the actuator such as the dozer cylinder, on the upstream side of the confluence point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3018487U JPS63141263U (en) | 1987-03-02 | 1987-03-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3018487U JPS63141263U (en) | 1987-03-02 | 1987-03-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63141263U true JPS63141263U (en) | 1988-09-16 |
Family
ID=30834761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3018487U Pending JPS63141263U (en) | 1987-03-02 | 1987-03-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63141263U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5550166B2 (en) * | 1976-09-27 | 1980-12-16 |
-
1987
- 1987-03-02 JP JP3018487U patent/JPS63141263U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5550166B2 (en) * | 1976-09-27 | 1980-12-16 |
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