JPS5998953U - Construction machinery hydraulic circuit - Google Patents
Construction machinery hydraulic circuitInfo
- Publication number
- JPS5998953U JPS5998953U JP19468482U JP19468482U JPS5998953U JP S5998953 U JPS5998953 U JP S5998953U JP 19468482 U JP19468482 U JP 19468482U JP 19468482 U JP19468482 U JP 19468482U JP S5998953 U JPS5998953 U JP S5998953U
- Authority
- JP
- Japan
- Prior art keywords
- side chamber
- hydraulic circuit
- rond
- arm cylinder
- bottom 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
Landscapes
- Operation Control Of Excavators (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は、建設車両の一例を示す掘削機の全体側面図、
第２図は、従来の作業機用油圧回路図、第３図は、同じ
〈従来における他の油圧回路図、第４図は、本考案実施
例を示す油圧回路図、第５図は、同じく本考案実施例に
おいて、アームシリンダへの油圧供給回路のみを取り出
して示す油圧回路を示している。FIG. 1 is an overall side view of an excavator showing an example of a construction vehicle;
Fig. 2 is a conventional hydraulic circuit diagram for a working machine, Fig. 3 is the same (other conventional hydraulic circuit diagram), Fig. 4 is a hydraulic circuit diagram showing an embodiment of the present invention, and Fig. 5 is the same hydraulic circuit diagram. In the embodiment of the present invention, only the hydraulic pressure supply circuit to the arm cylinder is shown.
Claims (1)
アームシリンダと、このアームシリンダへ圧油を供給す
る油圧ポンプとを結ぶ油圧回路中に、上記アームシリン
ダのボトム側室とロンド側室への圧油の流れが互いに逆
方向となる第一、第二の切換え位置と、更に、ボトム側
室とロンド側室を同時に油圧ポンプ側へのみ連通させ、
かつ、ボトム側室に通ずるボートとロンド側室に通ずる
ポートを相互に連通させる第三の切換え位置とを備えた
切換え弁を設けたことを特徴とする建設機械の油圧回路
。In the hydraulic circuit that connects the arm cylinder that rotates the arm of the work equipment attached to the tip of the boom and the hydraulic pump that supplies pressure oil to this arm cylinder, pressure oil is supplied to the bottom side chamber and the rond side chamber of the arm cylinder. the first and second switching positions where the flows are in opposite directions, and further, the bottom side chamber and the rond side chamber are simultaneously communicated only to the hydraulic pump side,
A hydraulic circuit for a construction machine, further comprising a switching valve having a third switching position that allows the boat communicating with the bottom side chamber and the port communicating with the rond side chamber to communicate with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19468482U JPS5998953U (en) | 1982-12-21 | 1982-12-21 | Construction machinery hydraulic circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19468482U JPS5998953U (en) | 1982-12-21 | 1982-12-21 | Construction machinery hydraulic circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5998953U true JPS5998953U (en) | 1984-07-04 |
Family
ID=30418383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19468482U Pending JPS5998953U (en) | 1982-12-21 | 1982-12-21 | Construction machinery hydraulic circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5998953U (en) |
-
1982
- 1982-12-21 JP JP19468482U patent/JPS5998953U/en active Pending
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