KWON, OH KWANG,권오광,PARK, HAN KYUNG,박한경,KWON, OH KWANGKR,PARK, HAN KYUNGKR
申请号：
KR1020140110650
公开号：
KR1020160024164A
申请日:
2014.08.25
申请国别(地区):
KR
年份:
2016
代理人:
摘要：
The present invention relates to an apparatus for controlling hydraulic pressure of a combine reaping part, capable of precisely adjusting a height of a reaping part of a combine and stably maintaining the adjusted state to thus stably reap grain. A reaping pump (P2), a main relief valve (M), a reaping solenoid valve (15), and a reaping pilot check valve (13) are sequentially installed in a reaping supply flow channel 11 supplying hydraulic pressure to a reaping cylinder (C1) moving up and down in the entire reaping part of the combine. Hydraulic pressure is received from the reaping pump (P2) through the reaping solenoid valve (15) and supplied to the reaping cylinder (C1) through the reaping supply flow channel (11), or pilot pressure is applied to the reaping pilot check valve (13) through the reaping pilot flow channel (14) to cause hydraulic pressure of the reaping cylinder (C1) to be discharged through a reaping discharge flow channel (12). When the reaping solenoid valve (15) is neutral, hydraulic pressure supplied from the reaping pump (P2) is returned to a storage tank (T) through an unloading supply flow channel (18), rather than being applied to the reaping solenoid valve (15). When the reaping solenoid valve (15) is operated, an unloading valve (17) presents hydraulic pressure from being returned to the storage tank (T), thus forming hydraulic pressure. A reaping control unit (10) is formed in which a reaping relief valve (16) is formed in the reaping pilot flow channel (14) so that hydraulic pressure of the reaping cylinder (C1) can be discharged with low pressure.본 발명은 콤바인의 예취부 높낮이를 정밀하게 조절할 뿐만 아니라 조절된 상태를 안정적으로 유지할 수 있도록 하여 콤바인으로 곡물을 안정적으로 수확할 수 있도록 한 콤바인 예취부의 유압 제어장치 장치에 관한 것이다.즉 콤바인의 예취부 전체를 상하로 이동하는 예취실린더(C1)로 유압을 공급하는 예취공급유로(11)에 예취펌프(P2)와 메인릴리프밸브(M)와 예취솔레노이드밸브(15)와 예취파이롯체크밸브(13)를 순차적으로 설치하되, 예취솔레노이드밸브(15)를 통해 예취펌프(P2)에서 유압을 공급받아 예취공급유로(11)를 통해 예취실린더(C1)로 공급하거나 또는 예취파이롯유로(14)를 통해 예취파이롯체크밸브(13)에 파이롯 압력을 인가하여 예취실린더(C1)의 유압을 예취배출유로(12)를 통해 배출시키도록 구
