12054results about "Gearing" patented technology

The invention includes a screw actuator. The screw actuator includes a screw having a screw shaft and a screw nut. The screw shaft defines a first longitudinal axis along its length. The screw nut at least partially surrounds the screw shaft. The screw actuator includes a motor having a stator and a rotor. The rotor is mechanically coupled to the screw shaft. The stator at least partially surrounds the rotor. The screw actuator includes a first rigid member having a length dimension oriented along the first longitudinal axis. The screw actuator includes a second rigid member mechanically constrained relative to the first rigid member. The second rigid member is configured to move along a direction of the first longitudinal axis.

The present invention discloses a mechanical tensioning gravity energy storage power generation device based on a rail train and a power generation track line thereof, including a power station under the track, two rows of drive plates are arranged at the bottom of the train, the power station includes a box buried under the track, a power generation assembly is arranged in the box, the power generation assembly is arranged in the middle of the track, and the power generation assembly is connected to a tensioning rope assembly, the tensioning rope assembly includes a tensioning steel wire rope, one end of the tensioning steel wire rope is connected to the power generation assembly and arranged in the box, and the other end is connected to a mechanical tensioning adjustment assembly, the mechanical tensioning adjustment assembly is arranged outside the track, and the mechanical tensioning adjustment assembly drives the power generation assembly by adjusting the tensioning force of the tensioning steel wire rope, and is pressed toward the drive plate on the train. The present invention adopts a mechanical tensioning rope design to realize the pressing of the power generation assembly and the train drive plate, avoids the power station pressing being affected by the ambient temperature, improves the applicability of the power station, and is also more convenient for maintenance and adjustment.

An electromechanical linear actuator having a threaded drive, which comprises a threaded nut connected to a cantilever tube and a lead screw connected to a hollow shaft of an electric motor via a rotationally fixed connection in such a way that, by a rotation of the hollow shaft and the lead screw, the threaded nut and the cantilever tube are linearly movable. An axial design length of the electromechanical linear actuator in the maximally retracted state is minimized in that a holding brake for the lead screw and a first rotary bearing for bearing the lead screw on a housing of the linear actuator are arranged within the hollow shaft.

A power transmission device for a vehicle includes a housing that accommodates a power transmission mechanism, a partition section that supports the power transmission mechanism and divides an interior of the housing, a strainer arranged at a bottom of the housing, and a pump supported by the partition section. The housing defines a first chamber located on one side of the partition section in a direction of an axis of rotation of the power transmission device, and a second chamber located on the other side of the partition section. The strainer has a first connection port that connects to the pump, and a second connection port that connects to a second oil path inside the partition section, the second connection port connecting to the second oil path from a direction of assembly of the pump onto the partition section.

A pivot drive (1) having a base (10), an output element (12) which is mounted to the base (10) in a manner so as to be rotatable around an axis of rotation and pivotable around two or more pivot axes, the two or more pivot axes intersecting each other at a point of intersection which is arranged on the axis of rotation, and having a rotation actuator (30) and two or more pivot actuators (42, 44), the rotation actuator (30) and the pivot actuators (42, 44) being mounted in a stationary manner with respect to the base (10).

The invention belongs to the technical field of transmissions, and relates to a stepless speed change transmission device pressurized by a movable conical disc, which comprises a first-shaft conical disc unit, a second-shaft conical disc unit, an annular transmission part used for being in transmission connection with the first-shaft conical disc unit and the second-shaft conical disc unit, a thrust unit and a torsion unit, the thrust unit comprises a main thrust disc arranged at the non-conical-surface end of a first shaft moving conical disc, and the main thrust disc is connected with a first shaft in a circumferential fixing and axial moving mode. Torque is transmitted between the main thrust disc and the first shaft moving cone disc, axial thrust can be generated on the first shaft moving cone disc, and meanwhile clamping force needed by torque transmission of the annular transmission piece is formed. The axial stroke generated by mutual rotation between the main thrust disc and the first shaft moving cone disc is matched with the axial stroke needed by speed regulation of the first shaft moving cone disc. The torsion unit comprises a main torsion disc which is arranged on the first shaft in a sleeving mode in an axial sliding and circumferential fixing mode, and the main torsion disc is used for providing forward rotation torque for the power source.

There is described a device for adjusting a seat position of a bicycle seat. The device allows a rider of a bicycle to adjust the tilt of their bicycle seat while the bicycle is in motion, without the rider having to first dismount. In some embodiments, the rider may also adjust the height of their bicycle seat at substantially the same time as the seat's tilt is adjusted, again without the rider having to first dismount. There are described a motorized embodiment in which one or more motors are used to drive a tilt actuator and a linear actuator, and a mechanized embodiment in which a source of pressurized air may be used to drive the linear actuator which in turn drives the tilt actuator.

An active air flap system mounted in a predetermined portion of a vehicle, includes: a housing, a flap mounted on the housing to be relatively movable, an actuator coupled to the at least one flap and configured to drive the at least one flap, and a power transfer mechanism engaging the actuator and the flip and configured to transfer power from the actuator to the at least one flap so that the at least one flap performs a dual operation of a sliding movement operation and a rotation operation of rotating around a predetermined rotation axis, preventing the occurrence of design heterogeneity and the air resistance caused by forming the space between the at least one flap and the radiator grill, and improving shielding properties.

An electric linear actuator has a housing extending along a longitudinal axis. A spindle is provided in the housing and extends along the longitudinal axis. A rod is coaxially coupled to the spindle and extends from a proximal end located in the housing to a distal end located outside the housing. The rod is movable along the longitudinal axis in response to rotation of the spindle. A circuit board is located in the housing adjacent the proximal end of the rod. The circuit board includes a linear inductive sensor having a linear axis oriented parallel to the longitudinal axis. The linear inductive sensor senses an actual position of the proximal end of the rod.

A linear actuator with a cushion mechanism includes: an actuator body (10) having a motor (13), a lead screw (151), an outer pipe (152) and a retractable pipe (153), the lead screw (151) is driven by the motor (13), the retractable pipe (153) has a screw nut (157); a rapid release mechanism (30) disposed on the lead screw (151) and releasing a driving relation of the motor (13) and the lead screw (151); and a cushion mechanism (50) disposed in the actuator body (10) and having an elastic member (51) and a deceleration structure (53). When the rapid release mechanism (30) is released, the lead screw (151) rotates while the retractable pipe (153) being loaded, the screw nut (157) compresses the elastic member (51) to make the deceleration structure (53) generate a break, thus a rotation speed of the lead screw (151) is lowered.

The invention discloses a driving module of a reciprocating type shaver. The driving module comprises a base, a driving assembly and a driving assembly, the two ends of the deflection frame are fixed to the base through elastic pieces to form a frame structure. The output shaft is mounted above the deflection frame; the horizontal motor is arranged on the base; the cam is arranged on a motor power shaft, and grooves with parallel normal sections and equal width are formed in the surface of the cam; the lower end of the rocker arm is hinged to the base, a middle rocker arm shaft is assembled in the groove, and the upper end is in linkage with the deflection frame. Rotary motion is converted into high-frequency linear swing through precise cooperation of the cam and the rocker arm, the transmission efficiency is high, and noise is low; the integrated modular structure of the base and the motor enables the cam and the rocker arm to be matched more accurately and reliably; the double-output shaft symmetrically and reversely swings to realize dynamic balance vibration reduction; the compact horizontal layout saves space; the product has the economical efficiency of a common motor and the performance advantages of a linear motor, the comfort and reliability of a shaver product are improved, and meanwhile the cost is reduced.

An annular body includes a base, a first resistance wire, a second resistance wire, a first terminal, and a second terminal. The base surrounds a central axis and expands in a direction intersecting the central axis. Resistance values of the first and second resistance wires change according to strain of the base. The first terminal is electrically connected to the end of the first resistance wire. The second terminal is electrically connected to an end of the second resistance wire. The first terminal is at a first position in the circumferential direction. The second terminal is at a second position in the circumferential direction. When viewed in the axial direction, the central angle defined by the first position, the central axis, and the second position is equal to or greater than about 90°.

Disclosed is a display device for a vehicle. The display device for the vehicle according to the present disclosure may include: a housing with an open side; a sliding assembly located in the housing and including a slider which is movable away from or toward the opening; a body located in the housing and fixed on the slider; and a display coupled to the body, and which is movable out of the housing through the opening, wherein the display may include: a display panel; and a swing module which is located between the display panel and body, to which the display panel is coupled, and which is rotatably coupled to the body, and wherein a rotational shaft of the swing module may intersect a movement direction of the body.

The ball screw pair comprises a lead screw (1) and a nut (2) which are matched with each other, and the length of a threaded roller path of the lead screw (1) is smaller than that of a threaded roller path of the nut (2); a plurality of balls (3) are arranged in a threaded roller path where the lead screw (1) is matched with the nut (2); returning device mounting grooves (11) are formed in the two end faces of the lead screw (1). The lead screw (1) is provided with a ball return hole channel (12) communicated with the reverser installation grooves (11) in the two ends of the lead screw (1). The lead screw is simple in manufacturing process, lower in manufacturing cost, uniform and smooth in ball stress and higher in bearing capacity, and particularly, curved surface remachining of the outer circle and the threaded raceway of the lead screw can be effectively avoided.

An electric power steering assembly comprises a housing with a cylindrical section, wherein an inner wall of the cylindrical section defines a first groove and a second groove extending in an axial direction, the first and second grooves having inwardly tapered walls. A ball screw is arranged in the housing, extending in the axial direction and defining a radially extending through-hole with a first and a second end. A ball nut is arranged in the housing and surrounds the ball screw and is configured to rotate with respect to the housing. A first anti-rotation pin is located in the first end of the through-hole, a second anti-rotation pin is located in the second end of the through-hole, and a spring is arranged between the anti-rotation pins.The spring is configured to pre-tension the first and second anti-rotation pins in a radially outward direction towards the first and second grooves, respectively.

The utility model belongs to the technical field of mechanical transmission, and particularly relates to an electric cylinder with a built-in force sensor, which comprises a lead screw assembly, a force sensor assembly and a force sensor assembly, the lead screw assembly comprises a nut and a screw rod, and the nut is movably sleeved on the outer side of the screw rod; the piston rod is fixedly connected with the nut; the bearing seat is arranged on the screw rod in a sleeving mode, the front end and the rear end of the bearing seat in the axial direction are connected with first bearings correspondingly, and the first bearings are connected with the screw rod; and the force sensor is arranged on the screw rod in a sleeving manner, and the force sensor is connected with the bearing seat. The axial tension and the axial pressure from the screw rod are transmitted to the bearing seat through the two first bearings respectively, and then the tension and the pressure are transmitted to the force sensor through the bearing seat respectively, so that output of pressure signals and pressure signals is realized.

The invention provides a harmonic joint. The harmonic joint comprises a joint shell and a speed reducer assembly. A first limiting ring groove is formed in one end of the inner peripheral wall of the joint shell; the speed reducer assembly is arranged in the joint shell and comprises a rigid wheel and a rolling body. A second limiting ring groove corresponding to the first limiting ring groove in position is formed in the peripheral wall of the rigid wheel, and the second limiting ring groove and the first limiting ring groove form a limiting ring cavity. The rolling body is arranged in the limiting ring cavity, and the rolling body, the peripheral wall of the rigid wheel and the peripheral wall of the joint shell jointly form a rolling bearing structure.

An assembly for maintaining the pitch angle of a flight control surface for an aircraft. The assembly includes a shaft comprising a screw thread and defining a shaft axis, and a nut. The nut includes a housing, a barrel located in the housing and comprising a screw thread for engaging with the screw thread of the shaft, and at least one locking element located in the housing. The housing comprises a radially inner cam surface adjacent to the locking element. The barrel is configured to rotate relative to the housing when the screw thread of the barrel is engaged and rotating with the screw thread of the shaft so as to move the locking element along the cam surface from a disengaged position in which the locking element is spaced from the screw thread of the shaft, to an engaged position.

The invention discloses an energy-saving reciprocating type telescopic mechanical arm pallet fork elevator, and relates to the technical field of elevators. The device comprises a lifting assembly, a telescopic mechanical arm pallet fork assembly is fixedly installed on the front face of the lifting assembly, the telescopic mechanical arm pallet fork assembly comprises a mounting plate, the mounting plate is fixedly installed on the lifting assembly, four sliding rails are welded to the front face of the mounting plate, and lifting sliding blocks are slidably connected to the interiors of the four sliding rails; and rotating shafts are rotationally installed between the two sets of lifting sliding blocks on the same side, first inserting rods are fixedly installed on the rotating shafts, and second inserting rods are hinged to the bottoms of the first inserting rods. Displacement of the first inserting rod in the vertical direction is converted into displacement of the second inserting rod in the horizontal direction, the pallet fork elevator has enough vertical space, but the horizontal space is limited by the size of the pallet fork elevator, under the condition that the equipment size is not increased, the pallet fork distance can be greatly increased, conveyors in butt joint with each floor are reduced, and the labor intensity of workers is reduced. The lifting cost is reduced.

The invention provides a cam, a wave generator and a harmonic reducer, the cam comprises a cam body, grooves are formed in the circumferential side face of the cam body, and the grooves are continuously or intermittently distributed in the circumferential direction of the cam body; the length of the cam body in the axial direction is H, the width W of any groove in the axial direction of the cam body meets the condition that W / H is larger than or equal to 0.15 and smaller than or equal to 0.3, and after the cam is matched with the flexible bearing, buffer spaces capable of providing elastic deformation and absorbing vibration are formed in the grooves. According to the harmonic reducer, the cam with the groove and the width meeting the design range is designed and constructed in the peripheral side face, the balance weight of the cam is reduced, the contact area between the cam and the flexible bearing is reduced, in the operation process of the harmonic reducer, a buffer space for providing elastic deformation and absorbing vibration can be formed in the groove with a certain span in the axial direction, and the service life of the harmonic reducer is prolonged. Load distribution of the harmonic reducer in the operation process is more uniform, and high-speed, low-noise and small-vibration operation of the harmonic reducer is facilitated.

The present invention proposes a pan-tilt device for optical axis calibration of optoelectronic equipment, comprising: a lifting unit, an azimuth unit and a pitch unit; the optical axis calibration support device provided by the present invention provides a device for rapid auxiliary calibration of the consistency of multiple sensors of the optical axis of an optoelectronic equipment load assembly and consistency control of batch products, which solves the problem of maintaining consistency and efficient adjustment of the optical axis calibration of multiple sensors of the optical load assembly of optoelectronic equipment during batch production of optoelectronic products; further, the embodiments of the present invention aim at the problems existing in the prior art and have made improvements one by one in terms of the rationality of weight and size, multi-dimensional motion characteristics, and ease of operation.

A tensioner for a belt has a fixed part provided with a pivot defining an axis (A), an eccentric arm rotatably mounted on the pivot about the axis (A), a pulley rotatable about an axis (B) defined by the arm and configured to cooperate with a timing belt, a first spring-damper assembly interposed between the arm and the fixed part, and a second spring-damper assembly configured to act between the arm and the fixed part from a predetermined angle of rotation of the arm with respect to the fixed part.

A linear actuator comprising a shaft and a nut that translates within a linear range of motion in response to relative rotation between the nut and shaft, a stop positioned at a travel limiting position and having an inner portion connected to the shaft, a radially compliant outer portion axially overlapping the inner portion and configured to rotate relative to the inner portion, and a cam roller portion disposed radially between the inner and outer portions and configured to move relative to a neutral orientation in response to relative rotation between the inner and outer portions, and the outer portion configured to radially bias the cam roller portion towards the neutral orientation; wherein rotation of the outer portion caused by the nut rotating into the outer portion provides an outward radial load at the cam roller portion on the outer portion that is absorbed by the outer portion.

A vibration test device includes a vibrating table on which an object to be vibrated is to be attached, an electric actuator that vibrates the vibrating table in a predetermined direction, and a controller that controls the electric actuator. The electric actuator includes an electric motor of which rotation can be switched between forward and reverse rotations, and a drive device that is supplied with electric power from a power source and controlled by the controller to supply driving electric power for vibrating the vibrating table at desired amplitude and frequency to the electric motor. The drive device includes a power regenerative converter that regenerates electric power that is not consumed by acceleration of the electric motor, among electric power regenerated from the electric motor when the vibrating table is vibrated at the desired amplitude and frequency, to the power source.

A power transmission device, includes a motor; a gear mechanism connected downstream of the motor; a drive shaft connected downstream of the gear mechanism and disposed passing through an inner periphery of the motor; a pump that sucks oil through a pump inlet; and a plate that includes a facing surface facing the gear mechanism in an axial direction. The pump inlet is disposed adjacent to the plate on a back surface side of the facing surface.

A carrier is provided with a first and a second oil passage. The first oil passage is formed so as to communicate a first side surface opening that is open to a first carrier side surface with a first outer peripheral opening that is open to an outer peripheral shaft surface, and the second oil passage is formed so as to communicate a second side surface opening that is open to a second carrier side surface with a second outer peripheral opening that is open to the outer peripheral shaft surface. A first oil receiving portion is formed so as to guide oil supplied from an inner side in a carrier radial direction to the first side surface opening, and a second oil receiving portion is formed so as to guide the oil supplied from the inner side in the carrier radial direction to the second side surface opening.

The invention discloses a harmonic speed reduction built-in motor with a circulating lubrication function. The harmonic speed reduction built-in motor comprises a center shaft, an electronic stator assembly, a motor rotor assembly, a wave generator, a first motor shell, a first gasket, a flexible gear, a second gasket, a controller shell, a controller, an output flange plate, a crossed roller bearing, a rigid gear, a needle bearing and a second motor shell. Lubricating oil liquid is accurately conveyed to the position between the flexible gear and the rigid gear in an outer circulation mode, precise lubrication is achieved, the oil liquid can be cooled, the lubricating effect is good, and the service life of the middle motor is prolonged.

A steering system for use in turning steerable vehicle wheels includes a steering wheel and a housing. A pinion is in the housing and connected to the steering wheel such that rotation of the steering wheel results in rotation of the pinion about a rotational axis relative to the housing. A first bearing rotatably supports a first end of the pinon in the housing. A second bearing rotatably supports a second end of the pinon in the housing. A worm wheel is meshed with the pinion in the housing and connected to steerable vehicle wheels. The worm wheel transfers torque from the steering wheel to the steerable vehicle wheels to effect turning of the steerable vehicle wheels. A pressing device applies a pressing force to the second end of the pinion via the second bearing to urge the pinion toward the worm wheel.

The present invention relates to an active ride height adjustment mechanism (2) for a vehicle, comprising a main support (5) for fastening the ride height adjustment mechanism (2) to a vehicle body, a height adjustment drive (6) for adjusting the ride height, a suspension arrangement (7), and a height adjustment lever (8) connected to the height adjustment drive (6) and the suspension arrangement (7). A first pivot connection (9) is provided between the height adjustment lever (8) and the suspension arrangement (7), and a second pivot connection (10) is provided between the height adjustment lever (8) and the height adjustment drive (6). The object of the invention is to provide a space-saving and less complex ride height adjustment mechanism.According to the invention, the pivot point of the height adjustment lever (8) is located at a third pivot joint (11) between the height adjustment lever (8) and the main support (5), wherein the third pivot joint (11) is arranged along the height adjustment lever (8) between the first pivot joint (9) and the second pivot joint (10). The invention also relates to a corner module (1) and a vehicle with such a ride height adjustment mechanism (2).

A tail end driving device for a silica smelting tapping robot belongs to the field of silica smelting and comprises a frame body used for supporting a linear impact mechanism, a chain transmission mechanism and a separable driving mechanism. The chain transmission mechanism provides power for the linear impact mechanism; the linear impact mechanism is arranged on the frame body in a sliding mode and can be driven by the chain transmission mechanism to do linear reciprocating motion. The separable driving mechanism is connected with the chain transmission mechanism and provides power for the chain transmission mechanism. The device is mainly used for discharging process operation of the silica smelting furnace.