JPH0357896U - - Google Patents
Info
- Publication number
- JPH0357896U JPH0357896U JP11878789U JP11878789U JPH0357896U JP H0357896 U JPH0357896 U JP H0357896U JP 11878789 U JP11878789 U JP 11878789U JP 11878789 U JP11878789 U JP 11878789U JP H0357896 U JPH0357896 U JP H0357896U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic
- telescoping boom
- hydraulic pressure
- tip
- 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
- 239000010720 hydraulic oil Substances 0.000 claims description 3
- 239000003921 oil Substances 0.000 claims 2
- 230000008602 contraction Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Forklifts And Lifting Vehicles (AREA)
Description
第１図は本考案の説明図、第２図は本考案の技
術の実施対象であるクレーン車の説明図、第３図
は従来技術の説明図である。
伸縮ブーム；１、作業機；５、複動油圧シリン
ダ；６，７、油圧発生ユニツト；２２、油圧ポン
プ；２３、作動油タンク；２４、油圧モータ；２
５、方向切換弁；１１，１２、二本の油圧ホース
；１５，１６。
FIG. 1 is an explanatory diagram of the present invention, FIG. 2 is an explanatory diagram of a crane truck to which the technology of the present invention is implemented, and FIG. 3 is an explanatory diagram of the prior art. Telescopic boom; 1. Work equipment; 5. Double-acting hydraulic cylinder; 6, 7. Hydraulic pressure generation unit; 22. Hydraulic pump; 23. Hydraulic oil tank; 24. Hydraulic motor; 2
5. Directional switching valve; 11, 12; Two hydraulic hoses; 15, 16.
Claims (1)
駆動される作業機を装備してなるクレーン車ある
いは高所作業車において、伸縮ブームの先端部又
は作業機に、油圧ポンプおよび作動油タンクを備
え且つ前記油圧ポンプの駆動源としての油圧モー
タを備えた油圧発生ユニツトを取り付け、この油
圧発生ユニツトのポンプ油路とタンク油路を方向
切換弁を介して前記作業機の複動油圧シリンダに
接続すると共に、油圧発生ユニツトの前記油圧モ
ータと伸縮ブームの基端側との間を、伸縮ブーム
の伸縮に追ずいするよう伸縮ブームに添設した二
本の油圧ホースで接続し、伸縮ブームの基端側に
設けた油圧発生装置から前記油圧ホースの一方、
前記油圧モータ、前記油圧ホースの他方を通つて
伸縮ブームの基端側に巡還する作動油でもつて、
前記油圧発生ユニツトの油圧モータを駆動するよ
う構成してなる伸縮ブームの先端に装備される作
業機の油圧駆動制御回路。 A crane vehicle or an aerial work vehicle equipped with a working machine driven by a double-acting hydraulic cylinder at the tip of a telescoping boom, in which the tip of the telescopic boom or the working machine is equipped with a hydraulic pump and a hydraulic oil tank, and Attaching a hydraulic pressure generation unit equipped with a hydraulic motor as a drive source for a hydraulic pump, and connecting a pump oil path and a tank oil path of this hydraulic pressure generation unit to a double-acting hydraulic cylinder of the working machine via a directional control valve, The hydraulic motor of the hydraulic pressure generation unit and the base end of the telescoping boom are connected by two hydraulic hoses attached to the telescoping boom so as to follow the expansion and contraction of the telescoping boom. one of the hydraulic hoses from the provided hydraulic pressure generating device;
With the hydraulic oil circulating to the base end side of the telescopic boom through the other of the hydraulic motor and the hydraulic hose,
A hydraulic drive control circuit for a work machine installed at the tip of a telescoping boom configured to drive a hydraulic motor of the hydraulic pressure generating unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11878789U JPH0357896U (en) | 1989-10-12 | 1989-10-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11878789U JPH0357896U (en) | 1989-10-12 | 1989-10-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0357896U true JPH0357896U (en) | 1991-06-04 |
Family
ID=31666937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11878789U Pending JPH0357896U (en) | 1989-10-12 | 1989-10-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0357896U (en) |
-
1989
- 1989-10-12 JP JP11878789U patent/JPH0357896U/ja active Pending
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