JPS58184066U - Control valve device for agricultural hydraulic lift equipment - Google Patents
Control valve device for agricultural hydraulic lift equipmentInfo
- Publication number
- JPS58184066U JPS58184066U JP8199382U JP8199382U JPS58184066U JP S58184066 U JPS58184066 U JP S58184066U JP 8199382 U JP8199382 U JP 8199382U JP 8199382 U JP8199382 U JP 8199382U JP S58184066 U JPS58184066 U JP S58184066U
- Authority
- JP
- Japan
- Prior art keywords
- control valve
- hydraulic lift
- valve device
- fluid pressure
- lift equipment
- 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
Landscapes
- Lifting Devices For Agricultural Implements (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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図はこの考案の一実施例を示す油圧回路図、第２図
ａ、 ｂはそれぞれ、同実施例要部の具体構造を示す
断面図、第３図は同実施例の作動を制御する制御回路例
を示すブロック線図である。
１・・・リフトシリンダ、２・・・リフトアーム、８・
・・油圧ホンプ、９…コントロールバルブ、９計・・ス
プール、１４Ａ、１４Ｂ・・・スプリング、１５・・・
油圧ポンプ、１６Ａ、１６Ｂ・・・油室、１８Ａ、１８
Ｂ・・・絞り、２１Ａ、２１Ｂ・・・電磁弁、２２．
２３・・・可変絞り、ＳＬＡ、 ＳＬＢ・・・ソレノイ
ド。Figure 1 is a hydraulic circuit diagram showing one embodiment of this invention, Figures 2a and b are sectional views showing the specific structure of the main parts of the same embodiment, and Figure 3 is a control diagram for the operation of the same embodiment. FIG. 2 is a block diagram showing an example of a control circuit. 1... Lift cylinder, 2... Lift arm, 8...
...Hydraulic pump, 9...Control valve, 9 total...Spool, 14A, 14B...Spring, 15...
Hydraulic pump, 16A, 16B...Oil chamber, 18A, 18
B... Throttle, 21A, 21B... Solenoid valve, 22.
23...Variable aperture, SLA, SLB...Solenoid.
Claims (1)
へと移され他方向に変位せしめられると下降作用位置へ
と移されるコントロールバルブを、その両端に作用せし
められるパイロット流体圧の制御により位置を変更制御
されるバルブに構成し、このコントロールバルブの両端
にパイロット流体″圧を供給するための流体圧供給手段
を設けると共に、上記パイロット流体圧を制御す乞ため
の電磁弁を、コントロールバルブとは別に設けたことを
特徴としてなる、農用油圧リフト装置用のコントロール
バルブ装置。The position of the control valve, which is moved from the neutral position to the ascending position when displaced in one direction and to the descending position when displaced in the other direction, is changed by controlling the pilot fluid pressure applied to both ends of the control valve. A controlled valve is provided with fluid pressure supply means for supplying pilot fluid pressure to both ends of the control valve, and a solenoid valve for controlling the pilot fluid pressure is provided separately from the control valve. A control valve device for an agricultural hydraulic lift device, which is characterized by the following:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8199382U JPS58184066U (en) | 1982-06-01 | 1982-06-01 | Control valve device for agricultural hydraulic lift equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8199382U JPS58184066U (en) | 1982-06-01 | 1982-06-01 | Control valve device for agricultural hydraulic lift equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58184066U true JPS58184066U (en) | 1983-12-07 |
Family
ID=30091077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8199382U Pending JPS58184066U (en) | 1982-06-01 | 1982-06-01 | Control valve device for agricultural hydraulic lift equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58184066U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5162273A (en) * | 1974-10-02 | 1976-05-29 | Bosch Gmbh Robert | Chosetsusochi |
| JPS5189081A (en) * | 1974-12-20 | 1976-08-04 |
-
1982
- 1982-06-01 JP JP8199382U patent/JPS58184066U/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5162273A (en) * | 1974-10-02 | 1976-05-29 | Bosch Gmbh Robert | Chosetsusochi |
| JPS5189081A (en) * | 1974-12-20 | 1976-08-04 |
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