公开(公告)号：US5649468A

公开(公告)日：1997-07-22

申请号：US329121

申请日：1994-10-25

申请人： Kou Tsurumi ,  Shinichi Hamada

发明人： Kou Tsurumi ,  Shinichi Hamada

IPC分类号： F03C1/40 ,  F01B3/00 ,  F01B13/04

CPC分类号： F03C1/0686

摘要： A swash plate type hydraulic motor switchable between high speed and low speed, comprises a main case, a cylinder block supported in the main case to be rotatable about a rotational axis, the cylinder block including a plurality of plungers having longitudinal axes extending parallel to the rotational axis, a swash plate supported in the main case for contacting forward ends of the plungers and pivotable about a pivotal axis between a high speed position and a low speed position, the pivotal axis extending parallel to a plane perpendicular to the rotational axis, and two trunnions projecting on the pivotal axis from opposite peripheral positions of the swash plate. The pivotal axis is located in a region between and close to a first reference plane extending perpendicular to a plane defined by the forward ends of the plungers in the low speed position, intersecting the rotational axis, and extending parallel to the pivotal axis, and a second reference plane extending perpendicular to a plane defined by the forward ends of the plungers in the high speed position, intersecting the rotational axis, and extending parallel to the pivotal axis.

摘要翻译： 可在高速和低速之间切换的斜盘式液压马达，包括主壳体，支撑在主壳体中的可绕旋转轴线旋转的气缸体，气缸体包括多个柱塞，其纵向轴线平行于 旋转轴，支撑在主壳体中的旋转斜盘，用于接触柱塞的前端，并且可围绕高速位置和低速位置之间的枢转轴线枢转，所述枢转轴线平行于垂直于旋转轴线的平面延伸，以及 两个耳轴从旋转斜盘的相对的周边位置突出在枢轴上。 枢转轴线位于与第一参考平面垂直的平面上延伸的第一参考平面上，该第一参考平面垂直于位于与转动轴线相交的低速位置的柱塞的前端并平行于枢转轴线延伸的平面所延伸的平面延伸， 第二参考平面垂直于由高速位置的柱塞的前端限定的平面延伸，与旋转轴线相交并且平行于枢转轴线延伸。