JPS61155461U - - Google Patents
Info
- Publication number
- JPS61155461U JPS61155461U JP4066085U JP4066085U JPS61155461U JP S61155461 U JPS61155461 U JP S61155461U JP 4066085 U JP4066085 U JP 4066085U JP 4066085 U JP4066085 U JP 4066085U JP S61155461 U JPS61155461 U JP S61155461U
- Authority
- JP
- Japan
- Prior art keywords
- oil passage
- working machine
- driving
- merging
- external working
- 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図は本考案実施例を示す掘削機の油圧回路
図、第２図及び第３図は、各々通常作業機への油
圧切換弁を内装するブロツクの要部横断面図、第
４図は掘削機の全体側面図である。
１４，１５……油圧ポンプ、３２……外部作業
用合流油路、３４……通常作業用合流戻り油路、
３７，３８……開閉部。
Fig. 1 is a hydraulic circuit diagram of an excavator according to an embodiment of the present invention, Figs. 2 and 3 are cross-sectional views of essential parts of a block housing a hydraulic pressure switching valve for a normal working machine, and Fig. 4 is a hydraulic circuit diagram of an excavator according to an embodiment of the present invention. FIG. 2 is an overall side view of the excavator. 14, 15... Hydraulic pump, 32... Merging oil passage for external work, 34... Merging return oil passage for normal work,
37, 38...Opening/closing part.
Claims (1)
機駆動用の合流油路と、同じく複数の油圧ポンプ
の圧油を前記外部作業機駆動用合流油路とは別方
向に導く通常作業用油路とを有し、これら外部作
業機駆動用合流油路と通常作業機用油路には、両
油路を選択的に開閉できる開閉部を設けたことを
特徴とする掘削機の油圧回路。 A merging oil passage for driving an external working machine that merges the pressure oil of a plurality of hydraulic pumps, and a normal working oil passage that also guides the pressure oil of a plurality of hydraulic pumps in a direction different from the merging oil passage for driving an external working machine. 1. A hydraulic circuit for an excavator, comprising: an opening/closing section for selectively opening and closing the combined oil passage for driving an external working machine and the oil passage for a normal working machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4066085U JPS61155461U (en) | 1985-03-20 | 1985-03-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4066085U JPS61155461U (en) | 1985-03-20 | 1985-03-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61155461U true JPS61155461U (en) | 1986-09-26 |
Family
ID=30549757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4066085U Pending JPS61155461U (en) | 1985-03-20 | 1985-03-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61155461U (en) |
-
1985
- 1985-03-20 JP JP4066085U patent/JPS61155461U/ja active Pending
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