JPH0267719U - - Google Patents
Info
- Publication number
- JPH0267719U JPH0267719U JP14530988U JP14530988U JPH0267719U JP H0267719 U JPH0267719 U JP H0267719U JP 14530988 U JP14530988 U JP 14530988U JP 14530988 U JP14530988 U JP 14530988U JP H0267719 U JPH0267719 U JP H0267719U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- electromagnetic valve
- hydraulic cylinder
- manual
- check 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.)
- Pending
Links
Landscapes
- Lifting Devices For Agricultural Implements (AREA)
- Harvester Elements (AREA)
Description
第１図は普通型コンバイン全体側面図。第２図
は刈り高さセンサー取付部側面図一部断面図。第
３図は油圧シリンダーを作動させるための油圧回
路。第４図は刈取部昇降シリンダー用のチエツク
バルブ部断面図である。
Ｃ……刈取部、３８……方向制御弁、Ｓ……セ
ンサー、５０……電磁バルブ、５６……スローリ
ターンバルブ、５１……チエツクバルブ、５１ｂ
……弁体、５１ｄ，５１ｅ……ピストン。
Figure 1 is an overall side view of an ordinary type combine. Fig. 2 is a side view and partial cross-sectional view of the cutting height sensor attachment part. Figure 3 shows the hydraulic circuit for operating the hydraulic cylinder. FIG. 4 is a sectional view of the check valve for the reaping section lifting cylinder. C... Reaping section, 38... Direction control valve, S... Sensor, 50... Solenoid valve, 56... Slow return valve, 51... Check valve, 51b
... Valve body, 51d, 51e... Piston.
Claims (1)
ー１３に圧油を給排するために手動の方向制御弁
３８と、センサーＳからの信号により自動的に切
り換わる電磁バルブ５０を設け、該方向制御弁３
８、電磁バルブ５０と油圧シリンダー１３との間
にチエツクバルブ５１を設けた構成において、方
向制御弁３８或いは電磁バルブ５０を下降側に切
り換えた時にチエツクバルブ５１の弁体５１ｂを
開く方向に押すピストン５１ｄ，５１ｅを直列に
配し、手動操作も自動操作も可能に構成したこと
を特徴とするコンバインの刈り高さ制御装置。 A manual directional control valve 38 and an electromagnetic valve 50 that is automatically switched by a signal from a sensor S are provided to supply and discharge pressure oil to the hydraulic cylinder 13 that raises and lowers the reaping section C of the combine.
8. In a configuration in which the check valve 51 is provided between the electromagnetic valve 50 and the hydraulic cylinder 13, a piston that pushes the valve body 51b of the check valve 51 in the direction of opening when the direction control valve 38 or the electromagnetic valve 50 is switched to the downward side. A cutting height control device for a combine harvester, characterized in that 51d and 51e are arranged in series and configured to allow both manual and automatic operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14530988U JPH0267719U (en) | 1988-11-07 | 1988-11-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14530988U JPH0267719U (en) | 1988-11-07 | 1988-11-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0267719U true JPH0267719U (en) | 1990-05-22 |
Family
ID=31413783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14530988U Pending JPH0267719U (en) | 1988-11-07 | 1988-11-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0267719U (en) |
-
1988
- 1988-11-07 JP JP14530988U patent/JPH0267719U/ja active Pending