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公开(公告)号：US5044817A
公开(公告)日：1991-09-03
申请号：US461393
申请日：1990-01-05
申请人： David A. Rayner , Rodney Chester
发明人： David A. Rayner , Rodney Chester
CPC分类号： F16D1/096 , Y10T403/7056 , Y10T403/7058
摘要： A threaded bush assembly for receiving and coupling a shaft to a rotatable hub includes a tubular sleeve member which is located within the rotatable hub and a tubular bush member adapted to be received in either end of the sleeve member. The bush member has a central bore in which the shaft is received and is axially moveable relative to the sleeve member by means of screw threaded members. The inner circumferential surface of the sleeve member and the outer circumferential surface of the bush member each have a helical thread formed thereon. The cross-section of both threads is defined by a pair of mutually opposed tapered surfaces. The two threads are screw threadedly engageable with one another, yet define a gap therebetween which enables relative axial movement of the two threads with respect to one another such that upon axial movement of the bush member relative to the sleeve member, one tapered surface of one thread wedges against the facing tapered surface of the other thread.
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公开(公告)号：US4512681A
公开(公告)日：1985-04-23
申请号：US288754
申请日：1981-07-31
CPC分类号： F16D1/096 , F16B3/00 , Y10T403/7024 , Y10T403/7056 , Y10T403/7058
摘要： The present specification discloses a tapered, longitudinally-split contractible taper bush for securing pulleys, sprockets, coupling flanges or other machine elements onto cylindrical shafts and utilizing a plurality of screws or bolts parallel with the hub axis for effecting wedging of the bush between the hub of the element and the shaft onto which it is mounted. Known bushes of this type suffer an out of balance moment due to the arrangemnt of locking holes, part threaded holes provided for de-wedging and bush removal, and the size of the longitudinally extending slit which is necessary to promote flexibility in the bush for bush removal.The present invention overcomes the out of balance problem by providing profiling in the region of the longitudinal slit so that the disposition of metal is then such as to compensate for the mass imbalance in both the bush and a co-operating mating hub, a rotationally balanced system being thus provided.
摘要翻译： 本说明书公开了一种用于将滑轮，链轮，联接凸缘或其他机器元件固定到圆柱形轴上并利用与轮毂轴平行的多个螺钉或螺栓的锥形纵向分割的可收缩锥形套筒，用于实现衬套在轮毂之间的楔入 的元件和安装在其上的轴。 这种类型的已知衬套由于锁定孔的布置，用于去楔和衬套移除而设置的部分螺纹孔以及促进衬套衬套中的柔性所必需的纵向延伸狭缝的尺寸而失去平衡 删除。 本发明通过在纵向狭缝的区域中提供轮廓来克服不平衡问题，使得金属的布置然后可以补偿衬套和配合毂中的质量不平衡，旋转平衡 因此提供了系统。
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