JPH01156253U - - Google Patents
Info
- Publication number
- JPH01156253U JPH01156253U JP5015088U JP5015088U JPH01156253U JP H01156253 U JPH01156253 U JP H01156253U JP 5015088 U JP5015088 U JP 5015088U JP 5015088 U JP5015088 U JP 5015088U JP H01156253 U JPH01156253 U JP H01156253U
- Authority
- JP
- Japan
- Prior art keywords
- swing
- switch
- speed
- actuator
- machine
- 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 1
Landscapes
- Operation Control Of Excavators (AREA)
Description
第１図は、本考案に係る旋回速度切換えスイツ
チを有する全旋回作業機の全体側面図。第２図は
、油圧回路図。第３図は、スイツチを配設した操
作レバーの正面図。第４図は、グリツプの縦断面
図。
Ｃ：絞り弁、Ｈ：油圧回路、Ｖ１：電磁油圧切
換弁、１３：操作レバー、１５：旋回速度切換ス
イツチ。
FIG. 1 is an overall side view of a full swing working machine having a swing speed changeover switch according to the present invention. Figure 2 is a hydraulic circuit diagram. FIG. 3 is a front view of an operating lever equipped with a switch. FIG. 4 is a longitudinal sectional view of the grip. C: Throttle valve, H: Hydraulic circuit, V1: Electromagnetic hydraulic switching valve, 13: Operation lever, 15: Swing speed switching switch.
Claims (1)
用のアクチユエータと、同アクチユエータを制御
する油圧制御弁との間に、機体旋回作動を制御す
る操作レバー１３に設けた旋回速度切換えスイツ
チ１５と接続した電磁油圧切換弁Ｖ１を介設する
と共に、同電磁油圧切換弁Ｖ１と旋回作動用のア
クチユエータとの間に、中途に絞り弁Ｃ，Ｃを介
在させた第１速ライン１６と、同絞り弁Ｃ，Ｃを
バイパスする第２速ライン１７とを併設して、上
記スイツチ１５のＯＮ−ＯＦＦにより、機体旋回
作動の速度を二段に切換えるべく構成してなる全
旋回作業機の旋回速度切換えスイツチ。 In a hydraulically operated swing work machine, an electromagnetic switch connected to a swing speed changeover switch 15 provided on an operating lever 13 that controls the machine body swing operation is installed between an actuator for machine body swing operation and a hydraulic control valve that controls the actuator. A first speed line 16 in which a hydraulic switching valve V1 is interposed, and throttle valves C, C are interposed midway between the electrohydraulic switching valve V1 and an actuator for swing operation; A swing speed changeover switch for a full swing working machine is provided with a second speed line 17 that bypasses C and is configured to switch the speed of the machine swing operation into two stages by turning the switch 15 ON/OFF.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5015088U JPH01156253U (en) | 1988-04-13 | 1988-04-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5015088U JPH01156253U (en) | 1988-04-13 | 1988-04-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01156253U true JPH01156253U (en) | 1989-10-26 |
Family
ID=31276220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5015088U Pending JPH01156253U (en) | 1988-04-13 | 1988-04-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01156253U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6246802B2 (en) * | 1980-07-25 | 1987-10-05 | Hitachi Ltd |
-
1988
- 1988-04-13 JP JP5015088U patent/JPH01156253U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6246802B2 (en) * | 1980-07-25 | 1987-10-05 | Hitachi Ltd |