JPS6427403A - Controller for lifting and lowering of reaping part in combine - Google Patents

Controller for lifting and lowering of reaping part in combine

Info

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
Application number
JP18262887A
Other languages
Japanese (ja)
Inventor
Takehide Yamamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yanmar Agribusiness Co Ltd
Original Assignee
Seirei Industry Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Seirei Industry Co Ltd filed Critical Seirei Industry Co Ltd
Priority to JP18262887A priority Critical patent/JPS6427403A/en
Publication of JPS6427403A publication Critical patent/JPS6427403A/en
Pending legal-status Critical Current

Links

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.
JP18262887A 1987-07-21 1987-07-21 Controller for lifting and lowering of reaping part in combine Pending JPS6427403A (en)

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)

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