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公开(公告)号:US5088339A
公开(公告)日:1992-02-18
申请号:US620140
申请日:1990-11-30
IPC分类号: F16H25/20
CPC分类号: F16H25/2015 , Y10T74/18688 , Y10T74/19786
摘要: A screw and nut linear actuator has a threaded drive screw. A drive nut is threaded onto the drive screw and is axially translatable thereover by rotating the drive screw relative to the drive nut. The drive nut has a first member translatable along the drive screw upon rotation of the drive screw relative to the first member, and a second member mounted to the first member for rotation relative thereto. The drive screw and first member are allowed to rotate but not translate relative to the second member with the first member restrained from rotation relative to the drive screw. A limit stop is threaded onto the drive screw and is engageable by the first member to restrain rotation of the first member upon engagement by the first member. Engagement of the first member with the limit stop restrains further rotation of the first member thereby restraining further translation of the drive nut while allowing rotation of the drive screw and the first member relative to the second member.
摘要翻译: 螺丝和螺母线性致动器具有螺纹驱动螺钉。 驱动螺母被拧到驱动螺钉上,并通过相对于驱动螺母旋转驱动螺杆而在其上轴向平移。 驱动螺母具有在驱动螺杆相对于第一构件旋转时可沿着驱动螺杆平移的第一构件,以及安装到第一构件以相对于第一构件旋转的第二构件。 驱动螺钉和第一构件被允许旋转,但不能相对于第二构件平移,同时第一构件相对于驱动螺杆限制旋转。 极限止动件被螺纹连接到驱动螺钉上并且可由第一构件接合以在第一构件接合时限制第一构件的旋转。 第一构件与限位挡块的接合限制了第一构件的进一步旋转,从而限制驱动螺母的进一步平移,同时允许驱动螺杆和第一构件相对于第二构件旋转。
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公开(公告)号:US4623051A
公开(公告)日:1986-11-18
申请号:US606212
申请日:1984-05-02
CPC分类号: B60S9/08 , F16D41/206 , F16D67/00 , F16H25/20 , F16H2025/2081 , F16H2025/2463 , F16H25/2204 , F16H25/2454 , Y10S254/02
摘要: A load bearing, one-way, spring clutch assembly for use in a load bearing assembly where the load bearing assembly includes a housing, a shaft rotatably mounted to the housing, a drive for applying a first torsion load to the shaft, and a thrust load applying a second torsion load to the shaft in a direction opposite the first torsion load. The load bearing, one-way, spring clutch assembly has first and second clutch members, one of the clutch members secured to the shaft for rotation therewith, and the other clutch member mounted on the shaft for rotation about a common axis with the one clutch member. Thrust load bearings are between the clutch members for carrying the thrust load. A spring clutch allows rotation of the one clutch member relative to the other where the first torsion load is greater than the second torsion load, and locks the clutch members together so that the one clutch member cannot rotate relative to the other where the second torsion load is greater than the first torsion load. A friction plate between the clutch assembly and housing resists rotation of the clutch assembly and shaft as otherwise would be caused by the thrust load.
摘要翻译: 一种用于承载组件中的承载单向弹簧离合器组件,其中所述承载组件包括壳体,可旋转地安装到所述壳体的轴,用于向所述轴施加第一扭转载荷的驱动器,以及推力 在与第一扭转载荷相反的方向上向轴施加第二扭转载荷。 承载单向弹簧离合器组件具有第一和第二离合器构件,其中一个离合器构件固定到轴上以与其一起旋转,另一个离合器构件安装在轴上以与一个离合器 会员。 推力负载轴承位于用于承载推力载荷的离合器构件之间。 弹簧离合器允许一个离合器构件相对于第一扭转载荷大于第二扭转载荷的另一个离合器构件的旋转,并且将离合器构件锁定在一起,使得一个离合器构件不能相对于另一个离合器构件旋转,其中第二扭转载荷 大于第一扭转载荷。 离合器组件和壳体之间的摩擦板抵抗离合器组件和轴的旋转,否则将由推力负载引起。
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