JPH03303U - - Google Patents
Info
- Publication number
- JPH03303U JPH03303U JP6035789U JP6035789U JPH03303U JP H03303 U JPH03303 U JP H03303U JP 6035789 U JP6035789 U JP 6035789U JP 6035789 U JP6035789 U JP 6035789U JP H03303 U JPH03303 U JP H03303U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- working machine
- spool
- descending
- lifting
- 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
Description
図面は本考案の一実施例の構成図である。
Ｓ……シリンダ、Ａ……上昇弁、Ｄ……下降弁
、５０……下降弁のスプール、８０……バランス
ピストン、９０……ソレノイド。
The drawing is a configuration diagram of an embodiment of the present invention. S... Cylinder, A... Ascent valve, D... Descending valve, 50... Spool of descending valve, 80... Balance piston, 90... Solenoid.
Claims (1)
通路に下降弁が設けられ、この下降弁を開くこと
により作業機を下降させる農業機械の作業機昇降
装置において、 上記下降弁を、上記排油通路を開閉するスプー
ルと該スプールを移動するソレノイドとからなる
直動式電磁弁で構成するとともに、この電磁弁の
スプールの内部に、該弁の通過流量を圧力補償す
るためのバランスピストンを組み込んだことを特
徴とする農業機械の作業機昇降装置。[Scope of Claim for Utility Model Registration] In a working machine lifting device for agricultural machinery, a descending valve is provided in an oil drain passage that returns oil from a cylinder for lifting and lowering a working machine to a tank, and the working machine is lowered by opening the descending valve. The descending valve is composed of a direct-acting solenoid valve consisting of a spool that opens and closes the oil drain passage and a solenoid that moves the spool, and the spool of the solenoid valve has internal pressure compensation for the flow rate passing through the valve. A working machine lifting device for agricultural machinery, which is characterized by incorporating a balance piston for lifting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6035789U JPH03303U (en) | 1989-05-26 | 1989-05-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6035789U JPH03303U (en) | 1989-05-26 | 1989-05-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03303U true JPH03303U (en) | 1991-01-07 |
Family
ID=31587654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6035789U Pending JPH03303U (en) | 1989-05-26 | 1989-05-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03303U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011169380A (en) * | 2010-02-17 | 2011-09-01 | Kawasaki Heavy Ind Ltd | Flow rate control valve with pressure compensation |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5737797A (en) * | 1980-08-15 | 1982-03-02 | Kyosan Electric Mfg Co Ltd | Checking method for storage contents of rom using redundant code system |
| JPS6332409A (en) * | 1986-07-28 | 1988-02-12 | 井関農機株式会社 | Working machine elevator of tractor |
-
1989
- 1989-05-26 JP JP6035789U patent/JPH03303U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5737797A (en) * | 1980-08-15 | 1982-03-02 | Kyosan Electric Mfg Co Ltd | Checking method for storage contents of rom using redundant code system |
| JPS6332409A (en) * | 1986-07-28 | 1988-02-12 | 井関農機株式会社 | Working machine elevator of tractor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011169380A (en) * | 2010-02-17 | 2011-09-01 | Kawasaki Heavy Ind Ltd | Flow rate control valve with pressure compensation |
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