895 results about "Spherical bearing" patented technology

An acetabular prosthesis having an outer member for engaging the acetabulum. The outer member has a part-spherical bearing surface terminating in a distal rim. The rim has a contour such that the portion thereof to be located between the ischium and the pubis extends distally further from an equator of the bearing surface than the contour to be implanted between the pubis and the illium and between the ischium and the illium.

The present invention provides a suspension tuning device and kit for vehicles with four link rear suspensions. More specifically, the suspension tuning device generally comprises a pair of billet aluminum lower control arms each having a spring platform rotatably secured to a weight jacking bolt and a removable/replaceable sway bar attachment plate. Each end of the control arms include a transverse thru-bore adapted to accept a three part urethane bushing or a spherical bearing. The lower control arms are constructed to mount within a standard four link rear suspension, such as that supplied on a FORD MUSTANG, to permit quick suspension alterations throughout a predetermined range.

A bearing plate for use in bone fixation for fractures, fusion osteotomies and the like, and the plate is provided with one or more spherical holes in which expandable spherical bearings can be rotatably supported. Each of the holes is formed at its periphery in such a way as to provide yielding expansibility of the hole so that upon expansion of the bearing, the hole expands with it to provide elastic resistance to the expanding bearing.

A drive shaft assembly for a downhole motor includes a drive shaft formed with convexly spherical bearing surfaces on each end, and end housings with concavely spherical bearing surfaces for mating contact with the spherical bearing surfaces of the drive shaft, thereby facilitating omni-directional articulation between the drive shaft and the end housings while transferring axial thrust loads between the drive shaft and end housings across the interface of the mating spherical bearing surfaces. Torque is transferred between the drive shaft and end housings through two or alternatively four swivelling drive keys mounted to each end of the drive shaft and engageable with complementary drive key slots in the end housings. Full and constant torque-transferring contact is thus provided between the swivelling drive keys and the end housings irrespective of any angular offset between the drive shaft and the end housings, resulting from omni-directional articulation of the drive shaft relative to the end housing. The omni-directional center of rotation at each end of the drive shaft coincides with the geometric centerpoint of the corresponding convexly spherical bearing surface, which corresponds to the intersection of the drive shaft's rotational axis, the end housing's rotational axis, and the drive key swivel axis.

PCT No. PCT/AU96/00180 Sec. 371 Date Jul. 11, 1997 Sec. 102(e) Date Jul. 11, 1997 PCT Filed Mar. 29, 1996 PCT Pub. No. WO96/30223 PCT Pub. Date Oct. 3, 1996A suspension system for a large dump truck. The dump truck having a main frame with laterally spaced frame members each associated with a rear wheel mounting hub with a wheel on each of its sides. Each hub is attached to a respective frame member by an attachment member pivotally attached to the respective frame member by a pivotal mounting and a suspension spring pivotally attached to the hub by a spherical bearing and to the respective frame member at a pivot mounting. The connections of the hub allow for limited pivotal movement of the hub about transverse and longitudinal axes relative to the frame members. A dump body is pivotally attached to the frame members at the pivot mounting or to the rear and above a suspension pivotal connection at a body pivotal connection.

A rotatable camera has a motor, a lens unit comprising a photographing head and a driving rod coupled to the photographing head, a spherical bearing support for pivotally mounting the photographing head, and a rotatable disc driven in rotation motion by the motor to drive the driving rod of the lens unit move along a spiral shaped locus, and, when the motor is driven, the photographing head is at the same time driven by the driving rod to rotate and change its angular position, so that the rotatable camera employs only a single motor to drive the photographing head of the lens unit to rapidly move to the direction to be monitored, particularly, due to no time delay any corners shall be monitored by the rotatable camera.

A haptic input apparatus includes: a supporting member having a spherical bearing; a lever handle having a spherical portion to be supported by the spherical bearing; an electromagnetic coil arranged opposite to a lower end surface of the lever handle; detection means for detecting an operating state of the lever handle; and control means for taking in an output signal a from the detection means to output a driving signal b of the electromagnetic coil based on the output signal a. The control means reads outs a control signal c from the electromagnetic coil corresponding to an output signal a to be inputted from the detection means from a first storage to output to a first driver circuit. The first driver circuit D/A converts the control signal c outputted from the CPU for amplifying, and outputs a driving signal b from the electromagnetic coil.

A support assembly (1) for guiding a flap (42) on an aircraft wing (41) during deployment of the flap is disclosed. The assembly comprises a guide track (2) defining a two-dimensional path, a cylindrical bearing follower (12) having a longitudinal axis constrained so as to follow said path during flap deployment, a shaft (23) extending from the bearing follower and, a spherical bearing coupling an end of the shaft to the bearing follower such that the bearing follower is rotatable relative to the shaft about the longitudinal axis of the bearing follower as it travels along the track. The spherical bearing also enabling rotation of the shaft about its longitudinal axis relative to the bearing follower and rotation of the shaft about a centre point of the spherical bearing such that the flap is fret to move in multiple directions.

A gearbox includes a shaft input spherical bearing and a shaft output spherical bearing enabling the ring gear to float within the housing and not engage the housing. The shaft output spherical bearing permits angular displacement of the output shaft with respect to the longitudinal axis of said output shaft. A spline connection enables the ring gear to pivot with respect to the cover. Loads transmitted to the housing of the gearbox are not transferred to the gear systems and the gear systems self-align within the housing.

The invention provides a magnetic-suspension roller washing machine. A roller of the washing machine adopts two-end support, wherein one end of the roller is supported by spherical bearing with a seat, and the other end of the roller is supported through magnetic suspension. Meanwhile, a stator part of a driving motor of the roller is flexibly limited by use of a spring, thereby realizing that the motor can drive the roller and can produce certain swing with the roller at the same time. As the roller adopts the two-end support, operation steadiness is increased, and the flexible limit of the driving motor further reduces the transfer of swing energy, thereby increasing the stability and reliability of the washing machine, increasing laundry amount and reducing the operation noise of the washing machine.

A multi-function gunsight for aiming a firearm comprises a body and a sight arm pivotally coupled to the body for rotation between a stowed orientation and a deployed orientation. The body defining a laser cavity, a starboard cavity, and a port cavity. A laser housing is disposed inside the laser cavity defined by the body. The laser housing supports a semiconductor chip that emits laser light and a collimating lens that collimates the laser light emitted by the semiconductor chip. A forward end of the laser housing is coupled to a spherical bearing. The spherical bearing constrains movement of the laser housing in three translation degrees of freedom corresponding to translation along x, y, and z axes of an x-y-z coordinate system. The spherical bearing allows rotation of the laser housing about at least the x and y axes of the x-y-z coordinate system.

The invention discloses a method for preparing a steel-based copper-alloy thermometal spherical bearing seat blank which is produced on a vertical centrifugal casting machine comprising an electric induction heating device and a cooling device. The preparation method sequentially comprises the steps that a steel shell of a bearing seat is preprocessed, and the preprocessed steel shell is placed on a rotary table of the vertical centrifugal casting machine; technological quantity of copper-alloy particles are added in the steel shell, and the rotary table is started; the heating device is started for heating to enable the copper-alloy particles to be molten; the steel shell is cooled to enable the molten copper-alloy to be solidified and metallurgically-bonded on the surface of the inner sphere of the steel shell to obtain the steel-based copper-alloy thermometal spherical bearing seat blank. The method has the advantages that the technological procedure is short, device investment is little, manufacturing cost is low, labor intensity is low, and the on-site environment is good.

The invention discloses a clamping mechanism for a device for testing the high-temperature direct tensile strength of ultrahigh-temperature ceramics. The clamping mechanism is structurally characterized in that an upper wedge clamp (3) is connected with an upper pull rod (1) of a tester, a circular supporting beam (2) is transversely clamped in a wedge groove of the upper wedge clamp (3), a flexible cable (4) for fixing a test piece (5) by being wound around the upper end of the test piece (5) is wound and fixed together with the circular supporting beam (2), a lower wedge clamp (15) for clamping the lower end of the test piece (5) is connected with a bulb rod (8), a bulb of the bulb rod (8) is mounted in a ball bowl composed of an upper spherical bearing (12) and a lower spherical bearing (10), and the upper spherical bearing (12) and the lower spherical bearing (10) are connected with each other by use of a bolt (11). The clamping mechanism for the device for testing the high-temperature direct tensile strength of the ultrahigh-temperature ceramics has the beneficial effects that the center line of the test piece is located in the same straight line with the straight line of pull under the action of the pull, the test piece is prevented from being bent and distorted, the stress on the test piece in the center line is even, a test result is kept accurate and reliable, and the repeatability is good.

The invention relates to a bridge rotation device and a bridge rotation construction method. The rotation device comprises a spherical bearing, a bracket and a track, wherein the spherical bearing is arranged at the bottom of one end of a bridge; the bracket is fixed on one end of the bridge provided with the spherical bearing; the track is in the shape of a circular arc and takes the spherical bearing as the circle center; and a flexible cable or a rigid member is arranged between the top end of the bracket and the bridge. In addition, the rotation device is provided with a lift winch, the flexible cable on the lift winch is connected at the top end of the bracket, and the flexible cable passes through a main sliding location element which is arranged on the track and slides along the track or the winch to be directly installed on a main sliding platform on the track. Besides, the rotation device comprises a rotation driving device for driving the bridge to rotate additionally. The rotation device can ensure that the bridge can not swing in the rotation process, so as to enable the bridge to stably rotate, thereby saving the cost and being used repeatedly.

A wafer polishing apparatus for polishing a semiconductor wafer. The polisher comprises a base (23), a turntable (27), a polishing pad (29) and a drive mechanism (45) for driven rotation of a polishing head (63). The polishing head is adapted to hold at least one wafer (35) for engaging a front surface of the wafer with a work surface of the polishing pad. A spherical bearing assembly (75) mounts the polishing head (63) on the drive mechanism for pivoting of the polishing head about a gimbal point (p) lying no higher than the work surface when the polishing head holds the wafer in engagement with the polishing pad. This pivoting allowing the plane of the front surface of the wafer to continuously align itself to equalize polishing pressure over the front surface of the wafer, while rotation of the polishing head is driven by the driving mechanism. This maintains the front surface and work surface in a continuously parallel relationship for more uniform polishing of a semiconductor wafer, particularly near the lateral edge of the wafer. A cassette of wafers and method of polishing are also disclosed.

A vehicular input device is disclosed which can afford a high stability of movable portions and an excellent power saving characteristic without impairing the operability of a manual operating unit. A mechanical portion of the vehicular input device is provided with a spherical bearing, a pivot shaft supported pivotably by the spherical bearing, a solenoid disposed below the spherical bearing, and a clamp member for clamping the pivot shaft, the clamp member being secured to an upper end portion of a drive shaft of the solenoid. A lower end portion of the pivot shaft is formed in a conical shape which becomes smaller in diameter gradually downwards. In an upper surface of the clamp member which is opposed to the lower end portion of the pivot shaft there is formed a generally conical depression into which the lower end portion of the pivot shaft can be inserted. An ON-OFF operation of the solenoid is controlled by a photointerrupter which is disposed within or near a manual operating unit and which detects a human finger trying to operate the manual operating unit.