JPS5976661U - Backhoe boom drive structure - Google Patents
Backhoe boom drive structureInfo
- Publication number
- JPS5976661U JPS5976661U JP17278182U JP17278182U JPS5976661U JP S5976661 U JPS5976661 U JP S5976661U JP 17278182 U JP17278182 U JP 17278182U JP 17278182 U JP17278182 U JP 17278182U JP S5976661 U JPS5976661 U JP S5976661U
- Authority
- JP
- Japan
- Prior art keywords
- boom drive
- drive structure
- backhoe
- pump
- backhoe 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)
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
図面は本考案に係るバックホウのブーム駆動構造の実施
例を示し、第１図は作業車の側面図、第２図は流体圧回
路図、第３図は合流バビレブの作用状態を示す流体圧回
路図である。
９・・・・・・ブーム駆動用アクチュエータ、１６・・
・・・・第１ポンプ、２１・・・・・・合流バルブ、２
５・・・・・・第２ポンプ、２６・・・・・・タンク、
２Ｂ・・・・・・戻し流路。The drawings show an embodiment of the backhoe boom drive structure according to the present invention, in which Fig. 1 is a side view of the work vehicle, Fig. 2 is a fluid pressure circuit diagram, and Fig. 3 is a fluid pressure circuit showing the operating state of the merging vibration rev. It is a diagram. 9... Boom drive actuator, 16...
...First pump, 21...Merge valve, 2
5... Second pump, 26... Tank,
2B...Return channel.
Claims (1)
供給流体に第２ポンプ２５からの圧力流体を合流させる
多連弁型バルブ２１を設けたバックホウのブーム駆動構
造であって、前記合流バルブ２１に、全開状態において
前記第２ポンプ２５からの圧力流体の一部をタンク２６
に戻す流路２８を備えである事を特徴とするバックホウ
のブーム駆動構造。A backhoe boom drive structure is provided with a multiple valve type valve 21 for merging pressure fluid from a second pump 25 with fluid supplied from a first pump 16 to a boom drive actuator 9, wherein the merging valve 21 includes: In the fully open state, a portion of the pressure fluid from the second pump 25 is transferred to the tank 26.
A boom drive structure for a backhoe, characterized in that it is equipped with a flow path 28 for returning to the backhoe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17278182U JPS5976661U (en) | 1982-11-15 | 1982-11-15 | Backhoe boom drive structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17278182U JPS5976661U (en) | 1982-11-15 | 1982-11-15 | Backhoe boom drive structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5976661U true JPS5976661U (en) | 1984-05-24 |
Family
ID=30376543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17278182U Pending JPS5976661U (en) | 1982-11-15 | 1982-11-15 | Backhoe boom drive structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5976661U (en) |
-
1982
- 1982-11-15 JP JP17278182U patent/JPS5976661U/en active Pending
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