JPS6427403A - Controller for lifting and lowering of reaping part in combine - Google Patents
Controller for lifting and lowering of reaping part in combineInfo
- Publication number
- JPS6427403A JPS6427403A JP18262887A JP18262887A JPS6427403A JP S6427403 A JPS6427403 A JP S6427403A JP 18262887 A JP18262887 A JP 18262887A JP 18262887 A JP18262887 A JP 18262887A JP S6427403 A JPS6427403 A JP S6427403A
- Authority
- JP
- Japan
- Prior art keywords
- speed
- travel
- signal
- reaping
- ground height
- 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
- 230000001105 regulatory effect Effects 0.000 abstract 2
Landscapes
- Lifting Devices For Agricultural Implements (AREA)
- Harvester Elements (AREA)
Abstract
PURPOSE:To lift and lower a pretreating part at a speed respectively suitable for reaping travel and high-speed travel, by regulating a lift speed according to the travel speed and regulating an auxiliary hydraulic pump when the travel speed or ground height attains a constant value or above. CONSTITUTION:A solenoid hydraulic valve 13 is actuated by a ground height signal 24 sensed by an ultrasonic sensor 23 provided in a reaping part to carry out feedback control using a constant height as a target value. A throttle degree of a variable throttle valve 15 is reduced at a high speed and increased at a low speed by a speed signal 22 sensed by a pulse counter 21 to regulate a lifting and lowering speed. If either of a travel speed signal 22 or ground height signal 24 exceeds a constant value, this is a time of high-speed travel or turning. As a result, an auxiliary hydraulic pump 14 is actuated to actuate a reaping part at a high speed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18262887A JPS6427403A (en) | 1987-07-21 | 1987-07-21 | Controller for lifting and lowering of reaping part in combine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18262887A JPS6427403A (en) | 1987-07-21 | 1987-07-21 | Controller for lifting and lowering of reaping part in combine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6427403A true JPS6427403A (en) | 1989-01-30 |
Family
ID=16121613
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18262887A Pending JPS6427403A (en) | 1987-07-21 | 1987-07-21 | Controller for lifting and lowering of reaping part in combine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6427403A (en) |
-
1987
- 1987-07-21 JP JP18262887A patent/JPS6427403A/en active Pending
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