摘要:
Disclosed is a torque-transmitting coupling assembly and method, as well as flexible surgical reamers having such assemblies. The reamers employ a fitting with radially flexible member, e.g., a split collet or a super-elastic collar that receives an elongated tubular shaft of super-elastic alloy. A compression sleeve is applied to the collet, in one embodiment, while the collar is located within a counter-bore of the fitting in another embodiment. Relative motion between the shaft, fitting and collet (or collar) induces a super-elastic activation in the shaft to form the desired coupling.
摘要:
A hydrodynamic thrust bearing, forming a part of a bearing system for a rotary bearing of spindle motors utilized to power hard disk drives, which includes at least one annular thrust plate and a counter bearing corresponding to the thrust plate. The thrust plate is firmly connected to a shaft rotatably supported by means of a radial bearing system. The shaft features an axial bore extends from one shaft end located outside the bearing system until the area where the thrust plate is to be positioned. A fixing element is inserted into the axial bore, an outer diameter of the fixing element being greater than the smallest inner diameter of the bore. This enables the thrust plate to be easily mounted in a press fit even in the area around the middle of the shaft.
摘要:
An annular collar-clamp attaches to a vertical post at selected height and radial orientation and includes an annular pattern of upper and lower dovetail mount sites receiving a bifurcated component mounting assembly having a corresponding inter-fitting pattern of semi-annular dovetail mounts whereby the mounting assembly engages the collar-clamp at a selected discrete position thereon. By use of discontinuous or non-concentric surface engagement in such orientation and pattern to lock together the collar-clamp and the associated mounting component assembly, better load distribution and overall strength results while retaining an ability to position a component at any selected radial orientation relative to the post.
摘要:
A tapered polygon coupling for an impeller and pinion. The pinion has a tapered bore having a polygonal cross-section. The impeller includes a corresponding tapered polygon plug configured to be placed in the bore of the pinion. A fastener is provided for securing the impeller to the pinion. The fastener passes through a passage in the plug of the impeller. The plug of the impeller is split so that when the fastener is inserted into the passage the plug expands to contact the bore and create an interference fit between the pinion and the impeller.
摘要:
A method for fixing and a structure for fixing a bearing member for a cylindrical substrate, a print cartridge and an apparatus for forming an image are provided, in which the deflection precision of the cylindrical substrate, such as an electrophotographic photoreceptor, is improved. A cylindrical substrate is expanded toward the outer periphery based on the expanding function caused by elasticity of a first inserting member and a second inserting member upon inserting into the cylindrical substrate from ends of the cylindrical substrate, so as to clamp the cylindrical member and bearing members interdigitated on the outer periphery of the cylindrical substrate. A second inserting member is inserted into the first inserting member.
摘要:
A PROVISION FOR RELEASABLY CLAMPING A WHEEL-LIKE MEMBER AGAINST AXIALLY SLIDABLE MOVEMENT ON THE SHAFT UPON WHICH IT IS MOUNTED, WHICH INCLUDES A SLEEVE OR COLLET FORMING AN AXIAL EXTENSION OF THE WHEEL AND A GARTERTYPE SPRING ENCIRCLING THE SLEEVE AND EXERTING, A RESILIENT CONTRACTUAL FORCE THEREON. THE SLEEVE IS FLEXIBLE AND RESPONDS TO THE PRESENCE OF THE SPRING AT ITS OUTER END TO CLAMP THE WHEEL TO THE SHAFT AND AT ITS INNER END BY RELEASING THE WHEEL FOR SLIDABLE MOVEMENT ALONG THE SHAFT. THE GARTER SPRING AFFECTS A ROLLING MOTION AS IT MOVES ALONG THE SLEEVE, AND A CAMBER ON THE SLEEVE PROVIDES OPPOSITE SLOPES OF DESCREASING DIAMETERS WHICH UNDER THE INFLUENCE OF ITS CONTRACTUAL FORCE CAUSES THE GARTER SPRING TO PROPEL ITSELF WITH A SNAP ACTION EITHER CLAMPING OR RELEASE POSITION ONCE IT IS SHIFTED OVER THE HIGH POINT OF THE CAMBER. MEANS IS CARRIED BY THE WHEEL FOR EFFECTING SHIFTABLE MOVEMENT OF THE GARTER SPRING.
摘要:
A tool for use with a surgical robotic manipulator that comprises an energy applicator, a tool assembly, and a protective sheath. The energy applicator including a shaft extending along an axis between a proximal end and a distal end. The tool assembly comprises a support structure to support the energy applicator, a connector assembly arranged to engage and releasably lock the energy applicator to the support structure in a locked state, and a drive system coupled to the support structure to rotatably drive the shaft of the energy applicator about the axis. The protective sheath releasably couples to the tool assembly, such that the protective sheath is arranged concentrically about the shaft of the energy applicator between the distal end of the shaft and the connector assembly. The connector assembly has a connector member to facilitate releasable coupling of the protective sheath to the tool assembly.
摘要:
A self-locking device of an electric tool output shaft includes a main shaft, a power output disk, a stop ring, and a plurality of self-locking pins. An upper end surface of the power output disk is provided with a plurality of drive blocks. A bottom of the main shaft is inserted into the power output disk. An inner side of the power output disk is provided with a plurality of drive surfaces. An outer wall of a lower end of the main shaft is provided with a plurality of driven surfaces and a plurality of self-locking surfaces. The main shaft has the driven surfaces to lean against the drive surfaces and the power output disk to accomplish a power output function, and further has the self-locking surfaces to lean against the self-locking pins to accomplish a self-locking function.
摘要:
A coupling device is provided for transmitting a torque between a drive element and a clutch, for example of a motor vehicle. The coupling device includes a first shaft and a second shaft being coupled together in a positive fit. The device is equipped with an elastic element which in the positive-fit connection generates a pre-tension to suppress rattling noises.
摘要:
A steering wheel alignment system for a vehicle having a steering wheel and steering unit that includes a first shaft operatively connected to the steering unit, a second shaft operatively connected to the steering wheel, and a coupling disposed between the first and second shafts to couple the shafts so that rotation of the steering wheel operates the steering unit to steer the vehicle. The coupling includes: a bolt, one of the shafts is hollow to telescope over the other shaft, and each shaft has a radial extending hole therethrough for receiving the bolt to attach the first and second shafts together. The radial extending hole through one of the shafts is elongated in the radial direction so that when the bolt extends through the holes of the first and second shafts the elongation of the hole defines a range of radial adjusting movement of the shafts relative one another until tightening of the bolt clamps the first and second shafts together against further relative rotation.