发明名称 |
PROPELLER PITCHLOCK SYSTEM WITH A ROTATING INTERFACE |
摘要 |
A pitchlock system includes a ballscrew screw mounted along an axis of rotation of an actuator, the ballscrew screw has an internal ballscrew bore; a pitchlock nut mounted about the ballscrew screw, the pitchlock nut including an internal pitchlock nut thread; a ballscrew ballnut mounted about the ballscrew screw and axially adjacent the pitchlock nut; a pitchlock actuation rod mounted axially within the internal ballscrew bore, the pitchlock actuation rod having an internal pitchlock actuation bore and a ball bearing aperture for receiving multiple ball bearings; a pitchlock retainer pin mounted axially within the internal pitchlock actuation bore; and a belleville spring which biases the ballscrew screw towards an axially fixed surface of the actuator in a pitchlock position, the ballscrew screw being movable between an operational position and the pitchlock position. |
申请公布号 |
US2015050149(A1) |
申请公布日期 |
2015.02.19 |
申请号 |
US201313965616 |
申请日期 |
2013.08.13 |
申请人 |
Hamilton Sundstrand Corporation |
发明人 |
Perkinson Robert H. |
分类号 |
B64C11/32 |
主分类号 |
B64C11/32 |
代理机构 |
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代理人 |
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主权项 |
1. A pitchlock system comprising:
a ballscrew screw mounted along an axis of rotation of an actuator, the ballscrew screw having an internal ballscrew bore; a pitchlock nut mounted about the ballscrew screw, the pitchlock nut including an internal pitchlock nut thread; a ballscrew ballnut mounted about the ballscrew screw and axially adjacent the pitchlock nut; a pitchlock actuation rod mounted axially within the internal ballscrew bore, the pitchlock actuation rod having an internal pitchlock actuation bore and a ball bearing aperture for receiving multiple ball bearings; a pitchlock retainer pin mounted axially within the internal pitchlock actuation bore; and a belleville spring which biases the ballscrew screw towards an axially fixed surface of the actuator in a pitchlock position, the ballscrew screw being movable between an operational position and the pitchlock position. |
地址 |
Windsor Locks CT US |