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    • 1. 发明申请
    • SEMI-ROTARY FLUID ACTUATOR
    • 半旋转流体致动器
    • WO1982004292A1
    • 1982-12-09
    • PCT/GB1982000158
    • 1982-05-28
    • PRUTEC LTDARCHER JOHN RICHARD
    • PRUTEC LTD
    • F15B09/10
    • B23D29/002F15B9/10
    • A shearing tool comprises a reference handle (10), a reference blade (14) rigidly connected to the reference handle (10), a control handle (12) and a slave blade (16) mounted at a common pivot assembly to the junction of the reference handle (10) and reference blade (14). A hydromechanical semi-rotary actuator is incorporated in the pivot assembly. The actuator comprises a housing (24) to which the reference handle (10) and blade (14) are rigidly connected, and a bushing (26) rotatable within the housing (24) and to which the slave blade (16) is rigidly connected. The bushing (26) has a vane (30) which partitions an arcuate hydraulic chamber (28) formed between the housing (24) and the bushing (26). A spool (38) rotatable within the bushing (26) and connected to the control handle (12) has supply and return cavities (40, 42) for hydraulic fluid which by manual operation of the handles (10, 12) are placed in communication with the arcuate chamber (28) through ports (56, 58) in the bushing (26). A differential driving torque is thus developed on the vane (30) to cause the blades (14, 16) toperform a powered shearing action.
    • 剪切工具包括参考手柄(10),刚性地连接到参考手柄(10)的参考刀片(14),控制手柄(12)和从属刀片(16),其安装在公共枢轴组件处, 参考手柄(10)和参考刀片(14)。 液压机械半旋转致动器并入枢轴组件中。 致动器包括壳体(24),参考手柄(10)和叶片(14)刚性连接到该壳体(24),以及可在壳体(24)内旋转的衬套(26),从动叶片(16)刚性地连接到该壳体 。 衬套(26)具有叶片(30),叶片(30)将形成在壳体(24)和衬套(26)之间的弓形液压室(28)隔开。 可在套管(26)内旋转并连接到控制手柄(12)的线轴(38)具有用于液压流体的供应和返回空腔(40,42),其通过手柄(10,12)的手动操作被放置在通信中 其中弓形腔(28)通过衬套(26)中的端口(56,58)。 因此,在叶片(30)上形成差动驱动扭矩,以使叶片(14,16)执行动力剪切动作。