11963results about "Gearing details" patented technology

An actuator, relating to the technical field of robots. The actuator comprises: a speed reducer shell (1), a planetary speed reducer (2) and an output-end supporting bearing (3), wherein the speed reducer shell (1) is provided with a connecting flange (101) and a connecting section (102), which is located on an inner side, the planetary speed reducer (2) is provided with a ring gear flange (2011) located on an outer side of a ring gear (201), the ring gear flange (2011) is arranged on one side of the connecting section (102), and the output-end supporting bearing (3) is arranged on the other side of the connecting section (102) and is connected by means of a fastener; an electric-motor rotor (4) and an electric-motor output shaft (5), the electric-motor rotor (4) being arranged on an outward extension portion of the electric-motor output shaft (5), and the electric-motor output shaft (5) being fixedly connected to an input end of the planetary speed reducer (2); and an electric-motor housing (6) and an electric-motor stator (7), wherein the electric-motor housing (6) is provided with a connecting end (601), the electric-motor stator (7) is arranged in the electric-motor housing (6), and the connecting end (601) is fixedly connected to the connecting flange (101).

A fluid transfer device for a turbomachine with longitudinal axis X, which includes a stator portion intended to be connected to a stator equipment of the turbomachine and a rotor portion engaged in the stator portion. The stator equipment including at least one conduit fluidly connected to at least one pipeline of the stator portion, the stator portion and the stator equipment including an attachment interface intended to releasably receive attachment members, the attachment interface and the attachment members being configured so as to make a sealed coincidence of the pipelines and conduit, and the transfer device comprising at least one passage allowing the access of an external tool upstream of the transfer device for accessing the attachment members and passing through the transfer device in either side.

The invention provides a self-adaptive anti-backlash planetary gear reducer and a working method thereof. The self-adaptive anti-backlash planetary gear reducer comprises an input shaft and a shell. An electromagnet coil, an electromagnet, a sliding block seat, a supporting seat, a sun gear and a second inner gear ring sequentially penetrate through one end of the input shaft from one end to the other end; the side, away from the input shaft, of the second inner gear ring is connected with an output shaft. A planet carrier is slidably arranged on the supporting seat in the radial direction, a first planet gear and a second planet gear are coaxially arranged on the planet carrier, a first inner gear ring is arranged on the inner side of the shell, and the sun gear, the first planet gear and the second planet gear are engaged with the first planet gear, the first inner gear ring and the second inner gear ring correspondingly; the electromagnet is fixed to the sliding block base, the sliding block base, the supporting base and the second inner gear ring are all rotationally connected with the input shaft, and the sliding block base can slide on the input shaft in the axial direction. And the sliding block seat is hinged with the planet carrier through a connecting rod. The speed reducer is simple in structure, has the self-adaptive anti-backlash capability, and can realize self-adaptive real-time elimination of the transmission backlash.

A drive device for an electric vehicle is provided for reducing the input speed of a motor and transmitting the reduced input speed to an output shaft. The device comprises a first planetary gear set comprising three first planetary gear elements, a first element connected to the motor and a second element connected to a first output shaft, a second planetary gear set comprising three second planetary gear elements, a first element connected to a third element of the three first planetary gear elements, a second element connected to a second output shaft, and a third element fixed, and a third planetary gear set comprising three third planetary gear elements, a first and a second element each connected to two elements of the three first planetary gear elements, and a third element connected to a torque vectoring motor.

A hinge, a display panel, and an electronic device are provided. The display panel includes a flexible display panel body and the hinge. The flexible display panel body includes a flexible portion, a first portion, and a second portion. The hinge includes a fixed bracket, a support mechanism, and a rotary mechanism. The support mechanism includes a first support member, a second support member, a third support member, and a fourth support member. The rotary mechanism includes a first connection member, a second connection member, a third connection member, and a fourth connection member.

A powered balancing mobility device that can provide the user the ability to safely navigate expected environments of daily living including the ability to maneuver in confined spaces and to climb curbs, stairs, and other obstacles, and to travel safely and comfortably in vehicles. The mobility device can provide elevated, balanced travel.

Disclosed are an active determination method and a precision machining method for a hydrodynamic oil film worm-gear pair. The method includes: establishing a precise three-dimensional digital model for a modification tooth surface of a worm-gear pair considering rough morphology; proposing a cross-scale meshing contact analysis method for the worm-gear pair; establishing a three-dimensional contact thermal elastohydrodynamic lubrication model for the worm-gear pair considering macro morphology, tooth surface roughness, and waviness of the modification tooth surface, and solving the model; with the friction coefficient, oil film thickness, oil film pressure, and friction force as objectives, determining an optimal worm-gear modification curve, worm tooth thickness distribution, pressure angle, helix angle, tooth surface roughness, and waviness for the hydrodynamic oil film based on an improved non-dominated sorting genetic algorithm and principal component analysis; and machining a worm gear tooth surface by using a double-lead variable-tooth-thickness hob.

The application relates to the technical field of automobile parts, in particular to a transmission gear structure and a folding device for a vehicle visual device. The transmission gear structure comprises a gear body, the inner ring surface of the gear body is provided with a guide column in the radial direction or is provided with a guide groove in the circumferential direction; the guide groove comprises a first horizontal section and an inclined section, and the inclined section is smoothly connected with the first horizontal section at one end. The folding device for the vehicle visual device comprises a shell, a mounting shaft, a driving unit, a transmission part mounted on the mounting shaft and a transmission gear structure rotatably mounted on the shell; a guide groove or a guide column is arranged on the outer wall of the transmission part, and the guide column is slidingly matched with the guide groove. The transmission gear structure and the folding device for the vehicle visual device have the advantages of low operation noise, small axial size, low starting load and long service life.

An axle assembly comprising a differential carrier, a differential assembly, a drive pinion, and a drive pinion brake. The drive pinion brake is mounted to the differential carrier. The differential carrier supports the differential assembly. The drive pinion brake is operable to apply a brake torque to inhibit rotation of the drive pinion.

A power transmission device includes a power transmission mechanism having a plurality of rotating elements, a case that houses the power transmission mechanism, a sensor disposed at a bottom of the case, and an electrical wire that electrically connects the sensor and a connector section. As viewed from a direction of an axis of rotation of the power transmission mechanism, the electrical wire is routed to pass between the plurality of rotating elements to a top of the case, with the connector section being disposed at the top of the case.

Provided is an electric heavy-load push-pull tool including a power input unit, a power conversion unit and a power output unit. Through the transmission design of multiple stages of reducers and a planetary roller screw of a downhole operation tool, low-speed and high-torque power output of the motor is realized. The heavy-load push-pull tool provided by the present disclosure can not only provide large-torque thrust force, but also provide large-torque pulling force. A forward direction of a transmission nut is based on a rotation direction of a motor. By controlling the forward rotation or reverse rotation of a transmission shaft of the motor, the forward or backward movement of an operation tool can be realized at low cost through power transmission.

A front differential includes an outer ring spline mounted on an inner housing for rotation with the ring gear joinder, an inner ring spline mounted on one of the semi-axle gears, and a plurality of friction members disposed between the inner ring and the outer ring. The friction members are interleaved plates which can create a partial friction state and a fully locked state of the front differential through application of axial pressure force. The spline mounting of the inner and outer rings allows axial movement so the axial pressure force application is more accurate despite manufacturing tolerances. A ball bearing is arranged between the differential housing and the ring gear joinder. The ball bearing is connected to the differential housing by a clearance fit which allows the ball bearing to move axially relative to the differential housing.

The utility model discloses an actuator with a two-stage planetary reducing mechanism and a robot joint. The actuator with the two-stage planetary reducing mechanism comprises a shell and a motor, the shell comprises a side wall, a top wall and a bottom wall, an inner gear ring is installed in the shell, and an installation space is defined by the inner edge face of the inner gear ring. A first sun gear, a first planet gear, a first planet carrier, a second sun gear, a second planet gear and a second planet carrier are arranged in the installation space, the first planet gear is connected to the first planet carrier in a pivoted mode and meshed between the inner gear ring and the first sun gear, and the second sun gear is synchronously connected with the first planet carrier. The second planet gear is pivoted on the second planet carrier and is meshed between the inner gear ring and the second sun gear; the lower end of the first sun gear is connected with the output end of the motor, and the upper end of the second planet carrier is pivoted to the top wall of the shell. According to the actuator, the space in the shell can be reasonably utilized, so that the interior of the actuator has a relatively compact structure, and particularly, the axial size of the actuator is greatly reduced.

A robotics corner module includes a steering drive unit, a traction drive unit, and a support structure. The steering drive unit includes an electric motor that drives rotation of a rotor shaft about a rotor shaft axis, and an output shaft coupled with the rotor shaft via a geartrain, such that rotation of the rotor shaft about the rotor shaft axis by the electric motor drives rotation of the output shaft about an output shaft axis that is parallel to and radially offset from the rotor shaft axis. The traction drive unit includes an electric motor that drives rotation of a rotor shaft about a rotor shaft axis, and a wheel hub operably coupled with the rotor shaft of the traction drive unit via a geartrain.

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.

The invention provides an automatic speed changing assembly which comprises a planetary gear speed reducing mechanism, a first-stage speed changing mechanism and a second-stage speed changing mechanism. An inner rotation driving member; the outer element is movably connected with the inner rotation driving part, so that the outer element can be driven to rotate under the driving of the inner rotation driving part, and the outer element is allowed to axially move between a first position and a second position relative to the inner rotation driving part; the driving disc is movably connected with the outer element, so that the driving disc can be driven to rotate under the driving of the outer element, and the driving disc is configured to be capable of changing between a first state in which the driving disc is combined with the power output element and a second state in which the driving disc is separated from the power output element; the first stage sun gear is configured to disengage from the outer element in a first position of the outer element and to engage with the outer element in a second position of the outer element. According to the automatic speed changing assembly and the electric capstan with the automatic speed changing assembly, the automatic speed changing function can be achieved, and reliability is good.

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.

“A tilting apparatus for an aircraft, comprising: a tiltable aircraft component which tilts between a first and second position, at least one actuator for adjusting a tilt angle of the tiltable aircraft component, and at least one passive damper connected to the tiltable aircraft component and configured to limit a rate of change of the tilt angle of the tiltable aircraft component. The at least one passive damper is on a load path separate from a load path of the at least one actuator.”

The invention relates to the technical field of robots, in particular to a planetary speed reduction joint module and a robot with the same, and the planetary speed reduction joint module comprises a motor assembly, a planetary speed reducer assembly, a front end cover, a rear end cover and an output flange cover plate; wherein the motor assembly comprises a shell and a motor rotating shaft; the planetary reducer assembly comprises an inner gear ring, a sun gear, a planet carrier and a plurality of planet gear sets, each planet gear set comprises a first-stage planet gear and a second-stage planet gear which are coaxially and fixedly connected, the inner gear ring is fixedly connected with the shell, the sun gear is coaxial and fixedly connected with a motor rotating shaft, the planet gear sets are rotationally connected to the planet carrier, the first-stage planet gears are meshed with the sun gears, and the second-stage planet gears are meshed with the second-stage planet gears. The secondary planet gear is meshed with the inner gear ring; the output flange cover plate is rotationally connected to the front end cover and fixedly connected to the planet carrier. Sealing assemblies are arranged between the rotating shaft and the shell as well as between the shell and the assembly; the motor rotating shaft and the planet carrier are respectively provided with a detection assembly. The invention has the characteristics of compact structure, small volume and light weight.

In a left-right wheel driving device (10) including two motors (1, 2) that drive left and right wheels and a gear mechanism (3) that amplifies a torque difference between the two motors (1, 2) and transmits the amplified torques to the left and right wheels, respective, rotating shafts (1A, 2A) of the two motors (1, 2) are coaxially disposed. The left-right wheel driving device (10) further includes motor shafts (11) that are positioned between the rotating shafts (1A, 2A) coaxially with the rotating shafts (1A, 2A) and that are each provided with a motor gear (21), counter shafts (12) that are disposed in parallel to the motor shafts (11) and that are each provided with a first intermediate gear (22) meshing with the motor gear (21) and a second intermediate gear (23) having a diameter smaller than that of the first intermediate gear (22), and output shafts (13) that are disposed in parallel to the motor shafts (11) and that are each provided with an output gear (24) meshing with the second intermediate gear (23). The gear mechanism (3) is disposed on one end side of each of the output shafts (13) and one of the left and right wheels is disposed on the other end side of the output shaft (13).

A propulsion system, comprising: a motor assembly including a stator and a rotor, a heat exchanger configured to receive air to cool a liquid, and a thermal plate including one or more channels configured to convey the liquid from the heat exchanger to the motor assembly. The heat exchanger is mechanically and fluidically coupled to the thermal plate.

A coaxial electrified drive axle is provided for a vehicle. The coaxial electrified drive axle has an electric motor connected to a gear box housing containing a stepped planetary gear set operatively coupling a drive shaft of the electric motor to a linkshaft and an output shaft through a differential assembly. The differential assembly is contained within a carrier which also supports the planet gears through planet pins. The carrier is supported by a single carrier support bearing. The drive shaft, the linkshaft, and the output shaft are coaxial and share a common axis of rotation.

The invention provides a transmission chain and a wind generating set. The transmission chain comprises a bearing seat, a transmission shaft and a transmission shaft, the main shaft is rotatably supported in the bearing seat and is provided with a front end and a rear end which are opposite to each other; the gear box comprises a box body and a planet carrier arranged in the box body, the box body is fixedly connected with the rear end of the bearing seat, and the planet carrier is rigidly connected with the rear end of the main shaft; and the thrust bearing is arranged in the gear box. According to the transmission chain, the overall structure is compact, the shafting and the gearbox are highly integrated, and the transmission chain has the advantages of being light in weight, low in overall cost and the like.

The invention relates to the technical field of automobile parts, in particular to a transmission gear structure and a folding device for a vehicle vision device. The transmission gear structure comprises a gear body, and the inner ring face of the gear body is provided with a guide column in the radial direction or provided with a guide groove in the circumferential direction. The guide groove comprises a first horizontal section and an inclined section, and one end of the inclined section is smoothly connected with the first horizontal section. The folding device of the vehicle vision device comprises a shell, a mounting shaft, a driving unit, a transmission part mounted on the mounting shaft and a transmission gear structure rotationally mounted on the shell. A guide groove or a guide column is arranged on the outer wall of the transmission part, and the guide column is in sliding fit with the guide groove. The transmission gear structure and the folding device for the vehicle vision device are low in operation noise, small in axial size, low in starting load and long in service life.

A transmission can include a shaft arrangement including an input shaft configured to couple to a primer mover and an output shaft coaxially aligned with the input shaft; a plurality of drive gears supported by the shaft arrangement and including a first drive gear, a second drive gear, and a third drive gear; a countershaft arrangement including a first and second countershaft supporting a plurality of pinion gears intermeshed with the first, second, and third drive gears; a clutch arrangement including a first clutch assembly and a second clutch assembly operable to lock the first, second, and third drive gears to the shaft arrangement to selectively provide four gear ratios between the input and output shafts.

The utility model discloses a compact planetary reduction box, including a primary planetary assembly, a shaft assembly, a secondary planetary assembly, a planetary gear ring group, a first bearing, a second bearing and an output disk; one end of the shaft assembly is plugged with the primary planetary assembly and the first bearing in sequence; the other end is plugged with the secondary planetary assembly, the second bearing and the output disk; the first bearing is embedded in the planetary gear ring group, one side of the second bearing fits the planetary gear ring group, and the other side is fixedly connected to the output disk; the primary planetary assembly and the secondary planetary assembly are respectively meshed with the inner wall of the planetary gear ring group; the shaft assembly is driven to rotate by an external motor, and the primary planetary assembly and the secondary planetary assembly are used to reduce the speed of the output disk. It can significantly improve the integration of the robot joint module and reduce the overall weight of the motor; the motor shaft and the reduction box shaft are integrated to improve the efficiency of robot product development.

A case that houses a drive force transmission device includes a circular ring part, fastening boss parts, first ribs, a non-fastening boss part, and a second rib. The circular ring part defines an opening through which a shaft is configured to be inserted. The fastening boss parts are provided around the circular ring part. Fastening members are to be secured to the fastening boss parts. The first ribs are respectively formed between a portion of the fastening boss parts and the circular ring part when viewed from an axial direction of the shaft. The non-fastening boss part is provided between adjacent ones of the fastening boss parts to which the first ribs are not connected, when viewed from the axial direction. A fastening member is not configured to be secured to the non-fastening boss part. The second rib is formed between the non-fastening boss part and the circular ring part.

An electric drivetrain having an axial flux electric motor disposed along a drivetrain axis, the axial flux electric motor disposed to rotate a hollow motor output shaft extending along the drivetrain axis, which hollow motor output shaft engages a first planetary gearset. The first planetary gearset may be engaged and disengaged with a second planetary gearset that is coupled to a differential which, in turn, drives first and second main driveshafts, each of which also extends along the drivetrain axis. The first main driveshaft drives a first wheel hub assembly and the second main driveshaft passes coaxially through the planetary gearsets, the hollow motor output shaft and the axial flux electric motor to drive a second wheel hub assembly.

The embodiment of the invention discloses a harmonic reducer, a mechanical arm and cleaning equipment, the harmonic reducer comprises a flexible gear, a connecting part and an output part, in the manufacturing process of the harmonic reducer, the protruding connecting part is formed on the surface of the flexible gear, production and machining of the flexible gear and the connecting part are more convenient, the machining precision can be improved, and the machining efficiency is improved. For example, the flexible gear and the connecting part which are integrally formed can be manufactured through an injection molding process, a connecting hole process in the traditional technology is replaced, the probability of deformation of the connecting part can be reduced or eradicated, and then the transmission precision of the harmonic reducer is guaranteed. In the assembling process, the output part is connected with the flexible gear through the connecting part, the connecting part protrudes out of the surface of the flexible gear, at least part of the connecting part can stretch into the output part, or at least part of components of the output part are arranged on the connecting part in a sleeving mode, and therefore rapid assembling of the output part and the connecting part can be facilitated; and the output part is conveniently connected with the flexible gear.

The present technology provides a fitness device for use by a user. The fitness device can include a resistance assembly including a spool, a motor, a gearbox, a pulley system, and a cord. The spool can include a first end and a second end. The motor can be selectively engageable with the spool and disposed adjacent to the first end of the spool. The motor can be configured to generate a resistance force. The gearbox can be disposed between the motor and the spool. The pulley system can be disposed adjacent to the second end of the spool. The cord can be disposed on the spool and the pulley system and can be configured to be wound and unwound in a single layer on the spool when pulled by the user. The present disclosure also provides a method for using a fitness device by a user.