JPS6052402U - Control valve for agricultural machinery - Google Patents
Control valve for agricultural machineryInfo
- Publication number
- JPS6052402U JPS6052402U JP14515083U JP14515083U JPS6052402U JP S6052402 U JPS6052402 U JP S6052402U JP 14515083 U JP14515083 U JP 14515083U JP 14515083 U JP14515083 U JP 14515083U JP S6052402 U JPS6052402 U JP S6052402U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- pilot
- spool
- poppet
- control valve
- 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.)
- Granted
Links
Landscapes
- Lifting Devices For Agricultural Implements (AREA)
- Servomotors (AREA)
- Multiple-Way Valves (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来品の油圧回路図とパイロット弁の縦断面図
、第２図は本考案の実施例を示す油圧回路図とパイロッ
ト弁の縦断面図である。
２・・・作業機、４・・・スプール弁、５・・・アンロ
ード ′弁、６・・・ロジック弁、７・・・パイ
ロット弁、１２゜１４・・・ポート、１３・・・ばね室
、１７・・・作動シリンダ、２１・・・作業機用コント
ロール弁、２３・・・スリーブ、２４・・・シート、２
５・・・パイロットスプール、２６・・・ポペット部、
２７・・・ばね。FIG. 1 is a hydraulic circuit diagram and a vertical cross-sectional view of a pilot valve of a conventional product, and FIG. 2 is a hydraulic circuit diagram and a vertical cross-sectional view of a pilot valve showing an embodiment of the present invention. 2... Work equipment, 4... Spool valve, 5... Unload 'valve, 6... Logic valve, 7... Pilot valve, 12° 14... Port, 13... Spring Chamber, 17... Operating cylinder, 21... Control valve for work equipment, 23... Sleeve, 24... Seat, 2
5... Pilot spool, 26... Poppet section,
27...Spring.
Claims (1)
弁、このスプール弁と作業機の油圧アクチュエータとの
連通、しゃ断をなすロジック弁１、 “ このロジ
ック弁を制御するパイロット弁、スプール弁のポンプ側
通路に接続するアンロード弁を備えたコントロール弁に
おいて、前記パイロット弁は、スリーブの一端に構成し
たシートと、スリーブに嵌挿されたパイロットスプール
の一端部に形成したポペット部と、このポペット部をシ
ートに当接するばねとで弁機構を構成してパイロットス
プールの他端に導くパイロット圧と対抗させ、前記ロジ
ック弁のポペット室と連通ずるポートとばね室と連通ず
るポートを、弁機構のポペット部がシートと当接すると
き連通せしめ、ポペット部を開く方向へパイロットスプ
ールが移動するときロジック弁のポペット室と連通ずる
ポートが閉じた後ばね室と連通ずるポートが弁機構を経
てタンクに連通ずる構成としたことを特徴とする農業機
械の作業機用コントロール弁。A spool valve that switches in response to feedback from the work equipment, a logic valve 1 that communicates and shuts off the communication between this spool valve and the hydraulic actuator of the work equipment, a pilot valve that controls this logic valve, and a valve on the pump side passage of the spool valve. In the control valve equipped with a connected unload valve, the pilot valve includes a seat formed at one end of the sleeve, a poppet portion formed at one end of the pilot spool fitted into the sleeve, and the poppet portion formed on the seat. The abutting spring constitutes a valve mechanism to oppose the pilot pressure guided to the other end of the pilot spool. When the pilot spool moves in the direction of opening the poppet part, the port communicates with the poppet chamber of the logic valve, and after closing, the port communicates with the spring chamber, and the port communicates with the tank via the valve mechanism. A control valve for a work machine of agricultural machinery, characterized by the following.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14515083U JPS6052402U (en) | 1983-09-19 | 1983-09-19 | Control valve for agricultural machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14515083U JPS6052402U (en) | 1983-09-19 | 1983-09-19 | Control valve for agricultural machinery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6052402U true JPS6052402U (en) | 1985-04-12 |
| JPH0124402Y2 JPH0124402Y2 (en) | 1989-07-25 |
Family
ID=30323480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14515083U Granted JPS6052402U (en) | 1983-09-19 | 1983-09-19 | Control valve for agricultural machinery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6052402U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015087744A1 (en) * | 2013-12-11 | 2015-06-18 | カヤバ工業株式会社 | Fluid pressure control device |
-
1983
- 1983-09-19 JP JP14515083U patent/JPS6052402U/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015087744A1 (en) * | 2013-12-11 | 2015-06-18 | カヤバ工業株式会社 | Fluid pressure control device |
| JP2015113900A (en) * | 2013-12-11 | 2015-06-22 | カヤバ工業株式会社 | Fluid pressure control device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0124402Y2 (en) | 1989-07-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6052402U (en) | Control valve for agricultural machinery | |
| JPS6182105U (en) | ||
| JPS5934162U (en) | switching valve | |
| JPH0645042Y2 (en) | Control valve | |
| JPH0165404U (en) | ||
| JPS5824501U (en) | Hydraulic cylinder cushioning device | |
| JPH0196502U (en) | ||
| JPH0418702U (en) | ||
| JPS58125701U (en) | hydraulic distribution device | |
| JPS61133102U (en) | ||
| JPS5958259U (en) | pilot operated check valve | |
| JPS5937404U (en) | Work equipment fluid pressure system | |
| JPH0393661U (en) | ||
| JPS61186804U (en) | ||
| JPS5816477U (en) | Pilot operated directional valve | |
| JPS6177485U (en) | ||
| JPS62169052U (en) | ||
| JPH0396437U (en) | ||
| JPS59194603U (en) | Switching delay prevention device for directional valves | |
| JPH035769U (en) | ||
| JPH0342813U (en) | ||
| JPH0484903U (en) | ||
| JPS59195067U (en) | fluid pressure actuator | |
| JPH022399U (en) | ||
| JPS60131703U (en) | Hydraulic supply control device |