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    • 46. 发明公开
    • FLUID ACTUATED OVER-CENTER CLUTCH FOR A PTO
    • FLUIDBETÄTIGTEEXZENTERKUPPLUNGFÜREINE ZAPFWELLE
    • EP3134659A2
    • 2017-03-01
    • EP15783001.9
    • 2015-04-23
    • Twin Disc, Inc.
    • JONES, Darrel, A.
    • F16D25/08
    • F16D25/087F16D13/385F16D23/12F16D25/083F16D48/02F16D2048/0212F16D2500/1026F16D2500/1028F16D2500/10437F16D2500/111
    • A hollow double-acting cylinder assembly may be mounted over a shaft and to a housing. A moveable piston of the cylinder assembly connects to a sliding sleeve of an over-center mechanism and the sliding sleeve with a thrust bearing allowing it to push and pull the sleeve mechanism with cylinder action. A toggle action of the over-center mechanism locks clutch without the need to sustain pressure on the cylinder after engagement/disengagement motion. As the clutch is typically engaged for sustained periods of time, this prevents constant hydraulic pressure applied to the over-center mechanism and significantly reduces wear. Hydraulic/pneumatic hoses may pass through the housing and connect to engage and disengage bores of the cylinder via remotely actuated control valve(s).
    • 空心的双作用缸组件可以安装在轴和壳体上。 气缸组件的可移动活塞连接到过中心机构的滑动套筒,滑动套筒具有推力轴承,允许其以气缸作用推动和拉动套筒机构。 过中心机构的肘节动作锁定离合器,而不需要在接合/分离运动之后承受气缸上的压力。 由于离合器典型地被接合持续的时间段,这防止施加到过中心机构上的恒定的液压压力并且显着减少磨损。 液压/气动软管可以穿过壳体并连接,以通过远程致动的控制阀接合和分离气缸的孔。