JPH02125060U - - Google Patents
Info
- Publication number
- JPH02125060U JPH02125060U JP3387789U JP3387789U JPH02125060U JP H02125060 U JPH02125060 U JP H02125060U JP 3387789 U JP3387789 U JP 3387789U JP 3387789 U JP3387789 U JP 3387789U JP H02125060 U JPH02125060 U JP H02125060U
- Authority
- JP
- Japan
- Prior art keywords
- actuator
- hydraulic excavator
- running body
- undercarriage
- hydraulic
- 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図はこの考案にかかる油圧回路図、第２図
および第３図はそれぞれ異なるドーザ装置を装備
した油圧シヨベルの側面図、第４図は従来技術の
油圧回路図である。
１，１０……ドーザ装置、２……下部走行体、
６……スイベルジヨイント、７，７′……走行モ
ータ、８，８′……ドーザシリンダ、１１……チ
ルトシリンダ、１２，１２′……走行弁、１３…
…ドーザ弁、２０，３０……電磁切換弁、２３，
３６……スイツチ、２９……アキユムレータ。
FIG. 1 is a hydraulic circuit diagram according to this invention, FIGS. 2 and 3 are side views of a hydraulic excavator equipped with different dozer devices, and FIG. 4 is a hydraulic circuit diagram of the prior art. 1, 10... Dozer device, 2... Lower running body,
6... Swivel joint, 7, 7'... Travel motor, 8, 8'... Dozer cylinder, 11... Tilt cylinder, 12, 12'... Travel valve, 13...
... Dozer valve, 20, 30 ... Solenoid switching valve, 23,
36...Switch, 29...Akiyumureta.
Claims (1)
け、かつ上記下部走行体に走行モータと他の第１
アクチユエータを装備し、さらに下部走行体に別
の第２アクチユエータを付加して取付けた油圧シ
ヨベルにおいて、上記第１アクチユエータの下部
走行体側作動回路にアキユムレータを設け、一方
、第１アクチユエータと第２アクチユエータとを
電磁切換弁を介して連結し、油圧シヨベルが作業
を行うとき第１アクチユエータの作動時、非作動
時にかかわりなく、第２アクチユエータを作動可
能に構成したことを特徴とする油圧シヨベルの油
圧回路。 The upper running body is provided so as to be able to swing freely relative to the lower running body, and the lower running body is provided with a running motor and another first
In a hydraulic excavator that is equipped with an actuator and further has a second actuator attached to the undercarriage body, an accumulator is provided in the undercarriage side operating circuit of the first actuator, and on the other hand, the first actuator and the second actuator are connected to each other. A hydraulic circuit for a hydraulic excavator, characterized in that the two actuators are connected via an electromagnetic switching valve, and the second actuator is operable regardless of whether the first actuator is activated or not when the hydraulic excavator performs work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3387789U JPH02125060U (en) | 1989-03-23 | 1989-03-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3387789U JPH02125060U (en) | 1989-03-23 | 1989-03-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02125060U true JPH02125060U (en) | 1990-10-15 |
Family
ID=31537876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3387789U Pending JPH02125060U (en) | 1989-03-23 | 1989-03-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02125060U (en) |
-
1989
- 1989-03-23 JP JP3387789U patent/JPH02125060U/ja active Pending
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