JPS616557U - Hydraulic circuit of hydraulic wheel shovel - Google Patents
Hydraulic circuit of hydraulic wheel shovelInfo
- Publication number
- JPS616557U JPS616557U JP8906084U JP8906084U JPS616557U JP S616557 U JPS616557 U JP S616557U JP 8906084 U JP8906084 U JP 8906084U JP 8906084 U JP8906084 U JP 8906084U JP S616557 U JPS616557 U JP S616557U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic
- travel
- control valve
- hydraulic circuit
- boom
- 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)
- Fluid-Pressure Circuits (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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図はこの考案による油圧式ホイールショベルの油圧
回路の一実施例を示す系統図、第２図は油圧式ショベル
の走行時の状態を示す側面図、第３図は従来の油圧式ホ
イールショベルの油圧回路を示す系統図である。
Ｃ１・・・ブーム用シリンダ、Ｍ１・・・走行用油圧モ
ータ、７・・・上げ側管路、８・・・下げ側管路、１１
・・・吐出側管路、１２・・・操作共ルブ、１３・・・
管路、１４・・・切替弁、１５．１６・・・パイロット
管路、Ｐ１・ ・・・主油圧ポンプ、Ｐ２・・・主油圧
ポンプ、１９・・・ストップ弁、Ｐ３・・・パイロット
油圧ポンプ、２０・・・管路、ＶＬ Ｖ．２・・・走行
油圧モータ制御用のコントロールバルブ、Ｖ３，Ｖ４・
・・ブームシリンタ制御用のコントロールバルブ。Fig. 1 is a system diagram showing an example of the hydraulic circuit of a hydraulic wheel excavator according to this invention, Fig. 2 is a side view showing the state of the hydraulic excavator when it is running, and Fig. 3 is a conventional hydraulic wheel excavator. FIG. 2 is a system diagram showing a hydraulic circuit. C1...Cylinder for boom, M1...Hydraulic motor for travel, 7...Upper side pipe, 8...Lower side pipe, 11
...Discharge side pipe line, 12...Operation valve, 13...
Pipe line, 14...Switching valve, 15.16...Pilot line, P1...Main hydraulic pump, P2...Main hydraulic pump, 19...Stop valve, P3...Pilot hydraulic pressure Pump, 20...Pipe line, VL V. 2... Control valve for travel hydraulic motor control, V3, V4.
...Control valve for boom cylinder control.
Claims (1)
、ブームシリンダを制御するブーム用コントロールバル
ブとがたがいに連結されており、走行圧油がブーム用コ
ントロールバルブにも作用する油圧回路をそなえた油圧
式ホイールショベルにおいて、ブームシリンダの上げ側
管路に、走行時における走行パイロット圧油により自動
的に切替えられてその管路を遮断するストップ弁を設け
たことを特徴とする油圧回路。A hydraulic wheel equipped with a hydraulic circuit in which the travel control valve that controls the travel hydraulic motor and the boom control valve that controls the boom cylinder are interconnected, and the travel pressure oil also acts on the boom control valve. 1. A hydraulic circuit for an excavator, characterized in that a stop valve is provided in a conduit on the raising side of a boom cylinder, and the stop valve is automatically switched by travel pilot pressure oil during traveling to shut off the conduit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8906084U JPS616557U (en) | 1984-06-14 | 1984-06-14 | Hydraulic circuit of hydraulic wheel shovel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8906084U JPS616557U (en) | 1984-06-14 | 1984-06-14 | Hydraulic circuit of hydraulic wheel shovel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS616557U true JPS616557U (en) | 1986-01-16 |
Family
ID=30642776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8906084U Pending JPS616557U (en) | 1984-06-14 | 1984-06-14 | Hydraulic circuit of hydraulic wheel shovel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS616557U (en) |
-
1984
- 1984-06-14 JP JP8906084U patent/JPS616557U/en active Pending
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