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1. 发明公开

EP0034069A1 Rotary actuator 失效
标题翻译： Drehantrieb。
公开(公告)号：EP0034069A1
公开(公告)日：1981-08-19
申请号：EP81300561.8
申请日：1981-02-11
申请人： SUPERFOS HYDRAULIC a/s (SUPERFOS a/s)
发明人： Söndergaard, Jorgen , Nielsen, Arne Lykke
IPC分类号： F15B15/22 , F15B15/08
CPC分类号： F15B15/068 , F15B15/225
摘要： The actuator comprises a casing (1) and a spindle (6) coupled together by means of a threaded sleeve (10). An axial displacement of the sleeve along the spindle produces the desired relative rotation between the two main parts (1, 6). The displacement occurs in response to the supply of a fluid to a chamber (11) between one end (5) of the casing and a piston (12) which is displaceable along the spindle, and which in turn presses on the sleeve (10). The outflow of fluid through an aperture (13) is throttled at one or more predetermined points of the rotation by means of a spring loaded shoe (16). During the rotation the shoe overlaps the aperture (13) whereby a desired retardation of the rotation is obtained. Undesired throttling of the inflow of fluid, when the shoe overlaps the aperture et the opposite direction of rotation, is avoided due to the fact that the pressure of the fluid overcomes the spring load.
摘要翻译：致动器包括壳体（1）和通过螺纹套筒（10）联接在一起的心轴（6）。套筒沿着心轴的轴向位移在两个主要部分（1,6）之间产生期望的相对旋转。响应于流体供应到壳体的一端（5）和活塞（12）之间的位移发生，所述腔（11）可沿着心轴移动，并且其又压在套筒（10）上，。通过孔（13）流出的流体通过弹簧加载的鞋（16）在旋转的一个或多个预定点处节流。在旋转期间，鞋与孔（13）重叠，从而获得期望的旋转延迟。由于流体的压力克服弹簧载荷的表面，流体的流入不期望地节流，当鞋重叠孔径和相反的旋转方向时，可以避免流体的流失。

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