9481results 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.

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.

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.

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.

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.

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.

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 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 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.

The high-torque-density light-weight humanoid robot harmonic reducer comprises a rigid gear, a flexible gear and a wave generator, the rigid gear is of an annular structure with an inner gear ring, the tooth shape of the inner gear ring is an involute tooth shape, the flexible gear is of a thin-wall cup-shaped structure, an outer gear ring is arranged on the outer wall of the flexible gear, and the wave generator is arranged on the outer wall of the flexible gear. The tooth shape of the outer gear ring is matched with the tooth shape of the inner gear ring of the rigid gear, an installation shaft hole is formed in the center of the cup bottom of the flexible gear, the wave generator comprises an oval flexible bearing and a cam installed on the outer side of the flexible bearing, the cam is in interference fit with the flexible bearing, and the wave generator is installed in the installation shaft hole of the flexible gear. The flexible gear is used for enabling the flexible gear to generate elastic deformation, and a heat dissipation assembly is detachably installed in an installation shaft hole of the flexible gear. By arranging the heat dissipation assembly, the heat dissipation effect of the harmonic reducer is remarkably improved, the internal temperature is reduced, the working stability of the reducer during high-load operation is improved, and the service life of the reducer during high-load operation is prolonged.

An electric powered steering assembly includes a housing with a cylindrical portion extending in an axial direction, an interior wall of the cylindrical portion defines a groove and extends in the axial direction, and the groove has at least two inwardly tapered walls. A ball screw is disposed in the housing and defines a hole extending in a radial direction. A ball nut disposed in the housing, surrounding the ball screw, is configured to rotate relative to the housing. An anti-rotational pin has a tapered end disposed in the hole, the tapered end having tapered surfaces corresponding to the at least two inwardly tapered walls. A spring is disposed in the hole and biases the anti-rotational pin in a radially outward direction towards the groove so that the tapered end of the anti-rotational pin engages the groove and thereby restricts rotation of the ball screw relative to the housing.

The present application provides a reverse-type integrated miniature linear servo electric cylinder. An open end of a rotor housing in a power transmission mechanism is fixedly connected to a planetary carrier by means of a coupling, the planetary carrier is directly driven by means of integration of the motor rotor housing and the planetary carrier, and after power transmission via the planetary carrier, an output end is directly driven to achieve linear motion without adding a gear reduction mechanism to a power transmission system of the electric cylinder, thereby significantly reducing the internal space of the electric cylinder occupied by the power transmission mechanism, allowing the electric cylinder to develop to have a more miniaturized and compact structure, saving costs; moreover, the energy utilization rate of the electric cylinder is improved, the electric energy consumption of the electric cylinder is reduced, and relatively good economic benefits can be yielded.

Provided is a mower system that includes an idler pulley, a deck drive pulley coupled to a drive shaft of a mower motor and an intermediate pulley coupled to the mower and positioned to be engaged by a portion of the deck drive belt spanning between the deck drive pulley and the idler pulley. The deck drive pulley located a first distance from the idler pulley and the intermediate pulley located a second distance from the idler pulley, with the second distance being greater than the first distance.

A system for identifying a failure of the primary load path in an actuator. The actuator includes a screw shaft and a nut assembly moveable along the screw shaft. The nut assembly comprises a primary nut for transmitting load through the actuator along a primary load path, and a secondary nut for transmitting load through the actuator along a secondary load path. The nut assembly is configured such that, in normal operation, the secondary nut is not engaged with the screw shaft and load is transmitted through the actuator along the primary load path, and such that, upon failure of the primary load path, the secondary nut is configured to engage the screw shaft and transmit load through the actuator along the secondary load path. The system includes a strain gauge configured to be mounted to the actuator and to measure vibrations of the actuator.

The present disclosure is directed to a multi-RET actuator system. The system includes a plurality of drive assemblies operatively connected to one or more phase shifter assemblies such that movement of one of the drive assemblies adjusts at least one, of the one or more phase shifter assemblies; a drive system including a drive screw and a drive shaft, the drive shaft supporting a second connector, the drive system configured to transversely move along the drive screw to position the drive system adjacent to a target drive assembly of the plurality of drive assemblies, a movable sled assembly operatively connected to the drive system, the movable sled assembly configured to extend or retract such that movement of the sled assembly selectively engages or disengages the second connector with a respective first connector for the target drive assembly. Methods of calibrating and operating multi-RET actuator systems are also described herein.

The invention discloses a reverse type annular tooth groove planetary roller screw which comprises a nut, a screw rod, a plurality of rollers and a retainer, a multi-head internal thread is arranged in the nut, the rollers and the screw rod are both of an annular tooth groove structure without a helix angle, and the annular tooth grooves of the rollers are meshed with the internal thread of the nut and the annular tooth grooves of the screw rod respectively; first gears are machined at the two ends of the annular tooth groove of the lead screw, second gears are machined at the two ends of the annular tooth groove of the roller, and the first gears are meshed with the multiple second gears at the same time. The retainer is of an integral flexible retainer structure, and the pin rollers have the self-adaptive capacity in multiple directions in the circumferential direction and the radial direction through the retainer. And an arc-shaped roller path is designed on the screw rod and is matched with the ball spline housing to play a linear rolling guiding and rotation stopping role on the screw rod. The reverse lead screw has the advantages of being large in transmission ratio, compact in structure, easy to machine and assemble, low in cost, good in self-adaptive performance, high in positioning precision, good in reliability and the like.

The invention discloses an energy storage unit, an energy accumulator, an energy storage transmission device and a photovoltaic tracking system, and the energy storage unit comprises an elastic part; an elastic member; the fixing piece is connected with one end of the elastic piece; the driving part is used for being connected with an external load, and the driving part is rotationally matched with the fixing part; the driven piece is connected with the other end of the elastic piece, the driven piece is rotationally matched with the fixed piece, and a switching part is arranged on the driven piece; the first combination part is arranged on the driving part, and the first combination part can be matched with the switching part; the second combination part is arranged on the fixing piece, and the second combination part can be matched with the switching part; in an initial state, the switching part is matched with the first combination part; the conversion part is used for being matched with the second combination part to achieve force storage or energy release of the elastic piece, or the conversion part is matched with the first combination part to achieve deformation of the elastic piece. The device has the advantages of being safe, reliable, high in automation degree, high in practicability, economical and environmentally friendly.

A coaxial asynchronous motor drive system, including a speed reducer, an electric motor and a main housing, and further including a motor controller, wherein the electric motor and the speed reducer are connected to form a motor reducer assembly and mounted inside the main housing, and the motor controller is fixed to the main housing and connected to the motor reducer assembly. The system reduces parasitic loss of an auxiliary motor drive system of a battery electric four-wheel-drive vehicle and increases the range per charge of the vehicle, and the compact and integrated coaxial motor drive system facilitates maximum utilization of available space of the vehicle.

A belt tensioning assembly may include a drive belt which may be configured to transfer torque from an engine, a pulley assembly which may guide the drive belt, a pulley adjustment arm which may be configured to move at least one pulley from the pulley assembly to adjust the tension level of the drive belt, a tension keeping assembly which may set and maintain a desired level of tension in the drive belt by moving the at least one pulley, and an interface assembly which may operably couple the tension keeping assembly to the pulley adjustment arm. The tension keeping assembly may include a setting portion at which the desired level of tension in the drive belt may be set and a retaining portion at which the desired level of tension in the drive belt may be maintained.

The present application provides an asymmetric efficiency transmission mechanism, a motor assembly, a wire-controlled steering system and a vehicle, which are applied to the field of asymmetric efficiency transmission technology. The transmission mechanism has a first transmission path and a second transmission path connected in parallel, the first transmission path is configured to have a high forward transmission efficiency and includes a first drive-side shaft component and a first load-side shaft component; the second transmission path is configured to have a low reverse transmission efficiency and includes a second drive-side shaft component and a second load-side shaft component, wherein the first drive-side shaft component and the second drive-side shaft component are transmission-connected, the transmission mechanism can have both high forward transmission efficiency and low reverse transmission efficiency, and the reverse efficiency is flexibly adjustable, the motor assembly using the transmission mechanism has the advantages of stable power output and strong anti-interference ability, and improves the robustness of the motor, and the wire-controlled steering system and vehicle using the transmission mechanism have the advantages of sufficient steering force and soft road feedback.

The invention discloses a flexible gear with a stable structure, and belongs to the technical field of harmonic reducers. The flexible gear comprises a tubular cylinder with a first end and a second end, and a wave generator enters the cylinder from the first end; the tooth part is arranged on the periphery of the cylinder body, the tooth part comprises a plurality of outer teeth, the outer teeth are evenly distributed in the circumferential direction of the cylinder body, each outer tooth is provided with a first transition inclined face, each first transition inclined face is provided with a low end and a high end, and the low end of each first transition inclined face is flush with the first end of the cylinder body. The technical problem that an existing flexible gear structure is low in stability is solved.

The invention discloses a piston assembly of a motor brake and an assembling process of the piston assembly, and relates to the technical field of motor brakes. Comprising a caliper shell, a caliper body assembly is installed on one side of the caliper shell, a power transmission unit assembly is detachably installed on the caliper body assembly, a positioning pin is arranged on the caliper body assembly, and a positioning hole matched with the positioning pin is formed in the power transmission unit assembly; the caliper body assembly of the caliper comprises a main support, a second support and a third support, wherein the main support is detachably installed on a caliper shell; the sleeve is detachably mounted on the inner side of the main bracket; the nut is connected into the sleeve in a sliding manner; and the ball screw assembly is connected into the nut through a thread. According to the invention, through arrangement of structures such as the caliper body assembly, torque transmission, clamping force transmission and stress support of parts are carried out in a highly integrated manner, installation and signal transmission of a force sensor in a very narrow space are realized, and the performance is reliable.

The invention relates to the technical field of forklift door frames, and discloses a forklift door frame chain tensioning device which comprises a door frame body and is characterized in that chain tensioners are symmetrically arranged on the side walls of the door frame body; the portal frame body comprises an outer portal frame, a middle portal frame, an inner portal frame, a pallet fork frame, a pallet fork, a goods blocking frame, a front lifting oil cylinder, a front cylinder chain, a front cylinder chain wheel, a rear lifting oil cylinder, a rear cylinder chain and a rear cylinder chain wheel, a lower cross beam and a middle cross beam are fixed in the inner portal frame, the front lifting oil cylinder is fixed on the side wall of the lower cross beam, and the rear lifting oil cylinder is fixed on the side wall of the middle cross beam. A front cylinder chain hanging plate is fixed to the side wall of the middle of the front lifting oil cylinder, the front cylinder chain hanging plate and the middle cross beam are fixed through a threaded installation bolt and a penetrating nut, a piston rod is arranged at the top of the front lifting oil cylinder, and a front cylinder chain wheel is arranged at the top of the piston rod. The chain tensioner is additionally arranged, oil leakage faults of the oil cylinder are reduced, the product service life is prolonged, the application range is wide, and the assembly method is simple.