JPS62170403U - - Google Patents
Info
- Publication number
- JPS62170403U JPS62170403U JP5751986U JP5751986U JPS62170403U JP S62170403 U JPS62170403 U JP S62170403U JP 5751986 U JP5751986 U JP 5751986U JP 5751986 U JP5751986 U JP 5751986U JP S62170403 U JPS62170403 U JP S62170403U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- pilot
- switching
- switching valve
- main direction
- 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 5
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
Landscapes
- Operation Control Of Excavators (AREA)
- Control And Safety Of Cranes (AREA)
- Fluid-Pressure Circuits (AREA)
Description
第１図は本考案の第１実施例。第２図は同じく
第２実施例。第３図は従来技術が適用される油圧
シヨベルの全体構成図。第４図は各作業用操作レ
バーの操作方向を示す説明図。第５図はＸ社の仕
様による操作レバーの操作方向を示す説明図。第
６図は同じくＹ社の仕様による操作レバーの操作
方向の説明図。第７図は同じくＺ社の仕様による
操作レバーの操作方向を示す説明図。
図において；１…下部走行体、２…上部旋回体
、３…作業装置、４…ブーム、５…アーム、６…
バケツト、７…ブームシリンダ、８…アームシリ
ンダ、９…バケツトシリンダ、１０…旋回モータ
、１１，１２…作業用操作レバー、２１，２１′
…パイロツト弁、２２，２２′…切換弁、２３，
２３′…バルブケーシング、２４…スプール、２
５…ロツド挿入孔、２６…大径部、２７…小径部
、２８，２８′…操作レバー、２９…位置決め装
置、３０…スプール。
FIG. 1 shows the first embodiment of the present invention. FIG. 2 also shows the second embodiment. FIG. 3 is an overall configuration diagram of a hydraulic excavator to which the prior art is applied. FIG. 4 is an explanatory diagram showing the operating direction of each work operating lever. FIG. 5 is an explanatory diagram showing the operating direction of the operating lever according to the specifications of Company X. FIG. 6 is an explanatory diagram of the operating direction of the operating lever according to the specifications of Company Y. FIG. 7 is an explanatory diagram showing the operating direction of the operating lever according to the specifications of Company Z. In the figure: 1... lower traveling body, 2... upper revolving body, 3... working device, 4... boom, 5... arm, 6...
Bucket, 7...Boom cylinder, 8...Arm cylinder, 9...Bucket cylinder, 10...Swivel motor, 11, 12...Work operation lever, 21, 21'
...Pilot valve, 22, 22'...Switching valve, 23,
23'...Valve casing, 24...Spool, 2
5... Rod insertion hole, 26... Large diameter part, 27... Small diameter part, 28, 28'... Operation lever, 29... Positioning device, 30... Spool.
Claims (1)
動方向を制御する為の主方向切換弁（コントロー
ルバルブ）と、主方向切換弁を制御する為の操作
レバーにより操作されるパイロツト弁と、パイロ
ツト弁と主方向切換弁を接続するパイロツト配管
からなる操作方式の油圧回路に於て、パイロツト
弁と主方向切換弁の間の配管途中にパイロツト弁
の各操作に対応してパイロツト圧を供給される複
数の入口油孔とスプールの切換により入口油孔と
出口油孔とを切換接続する切換弁を設け、該切換
弁のスプール位置を切換ることにより、操作レバ
ーの操作方式を変更することを可能としたことを
特徴とするパイロツト操作油圧回路。 A plurality of actuators, a main direction switching valve (control valve) for controlling the driving direction of each actuator, a pilot valve operated by an operating lever for controlling the main direction switching valve, and a pilot valve and a main direction switching valve. In an operating type hydraulic circuit consisting of pilot piping that connects the pilot valve, there are multiple inlet oil holes in the piping between the pilot valve and the main directional control valve that are supplied with pilot pressure in response to each operation of the pilot valve. A switching valve is provided to switch and connect the inlet oil hole and the outlet oil hole by switching the spool, and by switching the spool position of the switching valve, it is possible to change the operation method of the operating lever. Pilot operated hydraulic circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5751986U JPS62170403U (en) | 1986-04-18 | 1986-04-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5751986U JPS62170403U (en) | 1986-04-18 | 1986-04-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62170403U true JPS62170403U (en) | 1987-10-29 |
Family
ID=30887298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5751986U Pending JPS62170403U (en) | 1986-04-18 | 1986-04-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62170403U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62297513A (en) * | 1986-06-16 | 1987-12-24 | Yutani Heavy Ind Ltd | Selector valve device for construction machine |
-
1986
- 1986-04-18 JP JP5751986U patent/JPS62170403U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62297513A (en) * | 1986-06-16 | 1987-12-24 | Yutani Heavy Ind Ltd | Selector valve device for construction machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS62170403U (en) | ||
| JPS6322401U (en) | ||
| JPH0336336A (en) | Running and working machine control device for hydraulically-operated excavator | |
| JP2538712Y2 (en) | Hydraulic circuit of small excavator | |
| JPH0289043U (en) | ||
| JPH0183906U (en) | ||
| JPS62185762U (en) | ||
| JPS5825004Y2 (en) | Fluid pressure driven work equipment | |
| JPH0312949U (en) | ||
| JPS633586U (en) | ||
| JPS61123204U (en) | ||
| JPS61180249U (en) | ||
| JPH02116554U (en) | ||
| JPS6145248Y2 (en) | ||
| JP2538713Y2 (en) | Hydraulic circuit of small excavator | |
| JPH0354854U (en) | ||
| JPS5833569U (en) | Work vehicle hydraulic circuit | |
| JPS5820687Y2 (en) | work equipment | |
| JPS63132102U (en) | ||
| JPH0271101U (en) | ||
| JPS63135004U (en) | ||
| JPS61206756U (en) | ||
| JPS619287U (en) | Hydraulic system for articulated robots | |
| JPH037484U (en) | ||
| JPH0215655U (en) |