The disclosure is a linear actuator. A transmission mechanism includes a motor, a gear set and a screw rod. A releasing mechanism is disposed between the gear set and the screw rod and includes a driving gear, a first clutch, a second clutch and a sliding sleeve. A toggle restraining mechanism includes a stem, a rotating element and a restraining assembly. The rotating element has a restraining hole and a rotating arm. The restraining assembly includes a restraining presser, a restraining spring and an engaging element. The stem is moved to rotate the rotating element, the rotating arm is rotated with the rotating element to push the sliding sleeve. The sliding sleeve is pushed by the rotating arm to separate from the second clutch. The engaging element is engaged in the restraining hole to restrain the rotating element from rotating when the rotating element is rotated to a specific angle.

A drive includes an electric motor, having a rotor shaft rotatably mounted in a motor housing by bearing(s), and a transmission, having a transmission housing including a housing part and a cover part connected together. A bayonet guide region is arranged on, and projects into a recess of, the housing part. An adapter flange is connected to the motor housing in a torsion-resistant manner and includes a lug region engageable behind the bayonet guide region. The recess is restricted in the circumferential direction by a holding fin provided on the housing part, extending from a bearing receptacle of the bearing of the input shaft of the transmission in the radial direction and is restricted counter to the circumferential direction by a further holding fin provided on the housing part, extending from a bearing receptacle of the bearing of the input shaft in the radial direction.

An electromechanical device, having an actuator drive, which may be electrically actuated with the aid of a controller, and an actuator, which may be driven with the aid of the actuator drive and includes a housing, the actuator drive including an electric motor and a transmission, and the actuator drive having at least one electric line for electrical connection to the controller, and the electric motor being connected in a torque-transmitting manner to the actuator with the aid of the transmission. To improve an electromechanical device, it is proposed that the actuator drive is arranged entirely in the housing of the actuator up to the electric line.

A variable drive system of a power system is disclosed. The variable drive system may include an engine gearset to transfer power from an engine output of an engine to a variable input driveshaft of the variable drive system. The variable drive system may include a generator gearset to transfer power, generated by the engine, to a generator driveshaft of a generator. The variable drive system may include a variable drive, coupled to the variable input driveshaft, to enable a gear ratio between engine output and the generator driveshaft to be adjustable, the variable input driveshaft being offset from at least one of the engine output or the generator driveshaft. The variable drive system may include a direct drive clutch to bypass variable power transfer through the variable drive and enable direct power transfer from the engine output to the generator driveshaft.

The present disclosure relates to a waterproof housing of a battery-replaceable hydraulic device, and more particularly, a waterproof housing of a battery-replaceable hydraulic device for providing an improved watertight structure so that a hydraulic device operated by a detachable battery can be used underwater or in rain.

The present application provides a gearbox and an intelligent cleaning apparatus. The gearbox is used for the intelligent cleaning apparatus, and includes a rotatable part and a porous bearing. The rotatable part can rotate around a rotation axis to transmit power for a cleaning head of the intelligent cleaning apparatus, and has a contact surface. The porous bearing is fixedly arranged and has a support surface, and the support surface of the porous bearing is in contact with the contact surface of the rotatable part to support the rotatable part in rotating relative to the porous bearing. At least one of the contact surface and the support surface is provided with a recess.

An electric actuator 1 includes a drive unit 2, a driving force transmission mechanism 3, a motion conversion mechanism 4, an accommodation space accommodating the drive unit 2, the driving force transmission mechanism 3, and the motion conversion mechanism 4, and a ventilation section 5. The ventilation section 5 includes a vent 53 penetrating a partition wall partitioning the driving force transmission mechanism 3, an air flow path 46 communicating with the vent 53, and a filter 60.

The present disclosure relates to a mechatronic actuator consisting of a housing incorporating a shell and a three-phase electric motor formed by a stator excited by electrical coils and by a magnetized rotor, driving an output shaft by means of a gear train, the axis of the rotor, the axis of the output shaft and the axes of the intermediate toothed wheels being parallel, the stator having a radial triangular star shape, the three wound poles forming the three branches of the star, the axes of symmetry of two consecutive wound poles forming a mechanical angle of 120°, the housing also incorporating an electronic circuit, including a capacitor for filtering the electrical signal, the shell having a longitudinal axis, characterized in that the stator is positioned in the hosing in such a way that the axis of symmetry of one of the three wound poles forms an angle of between 70 and 110° with the longitudinal axis.

A speed reducer and a robot are disclosed. The speed reducer includes a rigid wheel, a flexible wheel and a flexible bearing; the rigid wheel is provided with a first fitting position and an inner wheel tooth set; the outer peripheral surface of a peripheral wall of the flexible wheel is provided with an outer wheel tooth set; in the axial direction of the rigid wheel, the tooth top of the outer wheel tooth set is provided with a first length, and the tooth root of the outer wheel tooth set is provided with a second length; the tooth top of the inner wheel tooth set is provided with a third length; the flexible bearing is provided with a fourth length; the second length and the third length are both greater than the first length, and the fourth length is greater than the second length.

A robot joint includes a casing, a motor assembly including a stator and a rotor that are arranged within the casing, and a harmonic drive received, at least in part, in the rotor. The harmonic drive includes a circular spline, a wave generator fixed to the rotor, and a flex spline. The circular spline is arranged around and engaged with the flex spline. The wave generator is received in the flex spline and configured to drive the flex spline to rotate with respect to the circular spline. The robot joint further includes an output shaft fixed to the flex spline.