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    • 1. 发明授权
    • 콤바인의 예취부 승강용 유압 회로
    • 结合示例提升和降低安装部件的液压回路
    • KR101755064B1
    • 2017-07-19
    • KR1020130047540
    • 2013-04-29
    • 카부시키가이샤 칸자키 코큐코키 세이사쿠쇼
    • 카네노부히데키카마다미노루
    • A01B63/10A01D34/24F15B11/04
    • (과제) 예취부를고속으로하강시킬때에발생하는타임래그를단축한다. (해결수단) 파일럿조작형체크밸브 (11) 와, 제 1 전환밸브 (7) 와, 제 1 전환밸브 (7) 와병렬로접속되고, 유압펌프 (4) 로부터유압실린더 (2) 로공급되는작동유의유량을제한하기위한제 1 스로틀 (9) 과, 제 1 스로틀 (9) 과직렬로접속되고, 1 차측유압이소정압력에도달했을때에밸브를여는저항밸브 (10) 와, 파일럿조작형체크밸브 (11) 를역류하여드레인되는작동유의유량을제한하기위한제 2 스로틀 (12b) 과, 제 2 스로틀 (12b) 보다유로단면적이작고, 드레인되는작동유의유량을제한하기위한제 3 스로틀 (18) 과, 드레인되는작동유의유로를, 제 3 스로틀 (18) 을통하여드레인되는작동유의유로로선택적으로전환가능한제 2 전환밸브 (19) 를구비한다.
    • [问题]为了缩短切割部分高速下降时发生的时间延迟。 第一切换阀7和第一切换阀7彼此串联连接并且从液压泵4供应到液压缸2, 用于限制液压流体的流量的第一节流阀(9);与第一节流阀(9)串联连接的阻力阀(10),当达到第一液压时打开阀, 第二节流阀12b用于限制从第一节流阀11向后排出的工作流体的流量,第三节流阀18用于限制具有比第二节流阀12b小的流动横截面积的液压流体的流量, 并且能够选择性地切换要排出的工作油的流路到通过第三节流阀(18)排出的工作油的流路的第二切换阀(19)。
    • 2. 发明公开
    • 콤바인의 예취부 승강용 유압 회로
    • 液压回路用于提升和降低组合收割机的部分
    • KR1020140001745A
    • 2014-01-07
    • KR1020130047540
    • 2013-04-29
    • 카부시키가이샤 칸자키 코큐코키 세이사쿠쇼
    • 카네노부히데키카마다미노루
    • A01B63/10A01D34/24F15B11/04
    • A01B63/10A01B63/1006A01D34/246F15B11/04
    • The purpose of the present invention is to reduce a time lag generated when lowering a reaper at high speed. To this end, a hydraulic circuit comprise: a pilot-operated check valve (11); a first switching valve (7); a first throttle (9) which is connected to the first switching valve (7) in parallel and restricts the flow of hydraulic fluid supplied from a hydraulic pump (4) to a hydraulic cylinder (2); a resistance valve (10) which is connected to the first throttle (9) in series and opens a valve when a primary fluid pressure reaches a predetermined pressure; a second throttle (12b) for restricting the flow of hydraulic fluid which flows into the pilot-operated check valve (11) backward to be drained; a third throttle (18) which has a flow path sectional area smaller than the second throttle (12b) and restricts the flow of the drained hydraulic fluid; and a second switching valve (19) for selectively switching a flow path of the drained hydraulic fluid into a flow path of the hydraulic fluid drained through the third throttle (18).
    • 本发明的目的是减少在高速下降收割机时产生的时滞。 为此,液压回路包括:先导式止回阀(11); 第一切换阀(7); 第一节气门(9)并联连接到第一切换阀(7)并限制从液压泵(4)供应到液压缸(2)的液压流体的流动; 电阻阀(10),其在第一流体压力达到预定压力时串联连接到第一节流阀(9)并打开阀门; 第二节流阀(12b),用于限制流入先导式止回阀(11)的液压流体向后排出的第二节气门(12b) 具有比第二节流阀(12b)小的流路截面积的第三节气门(18),并限制排出的液压流体的流动; 以及用于选择性地将排出的液压流体的流路切换到通过第三节流阀(18)排出的液压流体的流路的第二切换阀(19)。