Abstract: A magnetic locking system and methods for restricting movement of an electric aircraft motor is provided. A locking system may include a magnetic lock, which includes a first magnetic component and a second magnetic component. First and second magnetic components may be configured to attract each other and thus lock rotor in a certain position. The first or second magnetic component may include an electromagnet so that magnetic lock may be engaged or disengaged based on one or more parameters, such as a detection by a sensor or a signal generated by a controller.

Abstract: A vertical articulated robot includes a plurality of joint axis portions configured to rotationally drive a plurality of arms. The plurality of joint axis portions include a narrow joint axis portion. In the narrow joint axis portion, at least one of at least a portion of a brake or an oil seal is arranged inside a recess.

Abstract: The invention relates to a braking mechanism (10) for an electric drive motor (1), in particular a drive motor (2) comprising an armature shaft (5) that protrudes from a motor housing (2); the braking mechanism (10) comprises at least one braking element (17) and an energy store, the energy store permanently applying a braking power to a frictional surface of the braking element. The braking mechanism (10) is characterized in that the energy store and the braking element (17) are made of the same material as a single piece.

Abstract: The abutment of a drum brake is formed from a solid material which deforms under load, wherein measurement devices are provided which detect this deformation. The abutment has two limbs, on which the brake shoes are supported. The changing distance between the two brake shoes under load is determined by detecting the distance between extension rods on the limbs by a measurement device comprising magnets and Hall sensors or AMR sensors.

Abstract: The invention relates to a braking mechanism (10) for an electric drive motor (1), in particular a drive motor (2) comprising an armature shaft (5) that protrudes from a motor housing (2); the braking mechanism (10) comprises at least one braking element (17) and an energy store, the energy store permanently applying a braking power to a frictional surface of the braking element. The braking mechanism (10) is characterized in that the energy store and the braking element (17) are made of the same material as a single piece.

Abstract: In some examples, a braking system includes a housing configured to rotate around a torque tube. A disc stack includes a plurality of stator discs are coupled to the torque tube and a plurality of rotor discs rotationally coupled to the housing. An actuator within the torque tube is configured to compress the disc stack. A portion of the torque tube may be configured to insert into an axial assembly of a wheel. The housing may be connected to a portion of a wheel rim. The braking system may be present on a wheel instead of or in addition to a main braking system having a main disc stack.

Abstract: Provided is an electric actuator, including: a drive part (2); a motion conversion mechanism part (3) configured to convert a rotary motion from the drive part (2) into a linear motion in an axial direction in parallel to an output shaft of the drive part (2); and a lock mechanism part (7) configured to prevent drive by the motion conversion mechanism part (3). The lock mechanism part (7) includes: a rotary motor (64); and a lock member (60), which is driven by the rotary motor (64) so as to be brought into at least any one of a locking state of preventing the drive by the motion conversion mechanism part (3) and an unlocking state of releasing the locking state.

Abstract: A drive unit for an adjustment system for a motor vehicle has an adjustable element moved by an electric motor. The dive motor is operated electromagnetically. A magnetic field sensor is arranged on a pole pot or a housing of the drive motor to provide an electrical sensor signal dependent on a magnetic field. A control unit is configured to detect the magnetic field. The magnetic field varies on rotation of a rotor of the drive motor, so that a relative position change of the adjustable element can be derived from the electrical sensor signal.

Abstract: A driving device includes: a transmission mechanism; a driving mechanism, moved with the transmission mechanism; a linkage mechanism, moved with the driving mechanism and including a locking unit; and a housing, including an accommodation seat and sealing cover, the accommodation seat accepting the transmission, driving and linkage mechanisms, the sealing cover in combination with the accommodation seat to seal the transmission, driving and linkage mechanisms, one end of the linkage mechanism partly extended out of the sealing seat, and the locking unit partly pressed against an inner side wall of the accommodation seat. Whereby, the transmission mechanism is actuated to drive the driving mechanism to rotate, allowing the driving mechanism to drive the linkage mechanism to rotate; the action of the transmission mechanism is stopped, the locking unit locks the linkage mechanism, thereby capable of preventing power waste and the damage of the transmission mechanism and driving mechanism.

Abstract: An electric motor and an elevator system. The electric motor includes: a casing; a stator supported by the casing, the stator including a stator yoke and stator teeth, and a winding being wound around the stator teeth and generating a magnetic field when energized; and a rotor which rotates under the action of the magnetic field; wherein at least a portion of the stator yoke is formed as a moving plate which is movable between a first position and a second position; and when the winding is energized, the moving plate is capable of moving from the first position to the second position under the action of the magnetic field, and in the second position, the moving plate is separated from the rotor; and after the winding is de-energized, the moving plate is moved from the second position to the first position under the action of a spring force.

Abstract: An electrical machine comprising a two-part rotor formed of a first rotor part and a second rotor part. The first rotor part includes a conical section and is mounted to a shaft of the machine. The second rotor part has a bore including a complementary conical section. The second rotor part is configured to displace axially between a first state, in which it is engaged with the first rotor part to form the rotor of the electrical machine, and a second state, in which it is axially disengaged from the first rotor part. Also a clutch having an engaged state and a disengaged state. When the clutch is in one of its states the second rotor part is in its first state and switching the clutch to the other of its states axially displaces the second rotor part to its second state.

Abstract: An object of the present invention is to provide a unidirectional rotating motor, which can avoid reverse rotation of the motor due to heavy loads. The present invention employs the following technical solution.

Abstract: An electromechanical actuator for use in a hydraulic braking circuit of a vehicle comprises an electric motor having a stator and a rotor, and a linear actuator that is located within the motor. The linear actuator comprises an elongate shaft having a screw part at one end carrying an external thread that extends along a portion of the shaft, and a fixing part at the other end shaft, the linear actuator further comprising a drive nut that surrounds the screw part of the shaft and is located at least in a retracted position inside the enlarged bore of the first portion of the rotor body, the drive nut and being connected to the screw part. The rotor body is secured relative to the stator by a bearing assembly that is fixed to the second part of the elongate rotor body, the other end of the rotor body being otherwise unsupported and overhung from the bearing assembly.

Abstract: A lift fan includes a stator which is configured to output a magnetic field. The lift fan also includes a first housing which in turn includes a blade, a second housing, and a magnet array. The magnet array is coupled to either the first housing or the second housing and the housing, which is coupled to the magnet array, rotates in response to the magnet array responding magnetically to the magnetic field output by the stator.

Abstract: An electric actuator to be primarily used on an all-terrain vehicle (ATV) having implements such as snow plow is disclosed. The main purpose of the actuator is to allow the driver to rotate the blade when it is not touching the ground without having to get out of the vehicle. The actuator is composed of a stator assembly and a motor assembly. An electric motor is concealed in the motor assembly and drives a screwed or grooved part that engages the threaded or grooved inner surface of the stator assembly. Rotation of the screwed or grooved part induces a translational movement alongside the longitudinal axis of the actuator assembly. The translation movement induces the elongation or the retraction of the actuator depending on the rotating direction of the electric motor.

Abstract: An electromechanical strut and method of moving a closure member of a vehicle between an open position and a closed position is provided. The electromechanical strut includes a power drive unit including a motor, a leadscrew, a planetary gearset operably connecting the motor to the leadscrew, and an electromechanical brake assembly. The electromechanical strut further includes a telescoping unit including an extensible tube and a drive nut for converting rotary motion of the leadscrew into linear motion of the telescoping unit. The electromechanical brake assembly is selectively moveable between an engaged state, wherein the leadscrew is prevented from rotating to prevent relative axial movement between the power drive unit and the telescoping unit, and a disengaged state, wherein the leadscrew is permitted to rotate to allow relative axial movement between the power drive unit and the telescoping unit.

Abstract: This actuator for driving a home-automation screen includes an electric motor (M), a reduction gear (R) for transmitting the movement of the motor to the home-automation screen and a brake. The actuator includes a direct current electronic switching motor (M) and a mechanical brake (2) having a continuous drag torque.

Abstract: A gardening tool, such as a mower, includes a main body and a handle rotatably connected to the main body. The main body includes a motor. The handle includes a plurality of telescopic members slidably connected to each other. The mower further includes a operation assembly for being operated by a user to activate the motor and a control device for sending a control signal to enable or disable the operation of motor by the operation assembly.

Abstract: A gardening tool, such as a mower, includes a main body and a handle rotatably connected to the main body. The main body includes a motor. The handle includes a plurality of telescopic members slidably connected to each other. The mower further includes a operation assembly for being operated by a user to activate the motor and a control system for sending a control signal to enable or disable the operation of motor by the operation assembly when the handle is out of a secure state.

Abstract: An gardening tool, such as a mower, includes a main body and a handle rotatably connected to the main body. The main body includes a motor. The handle includes a plurality of telescopic members slidably connected to each other. The mower further includes a operation assembly for being operated by a user to activate the motor and a control system for sending a control signal to enable or disable the operation of motor by the operation assembly when the handle is out of a accommodating state.

Abstract: An electric drive contains an electric motor for generating a driving force and a transmission for transmitting the driving force. The electric motor has a motor housing, a rotor arranged in the motor housing, and a motor shaft which bears the rotor. The transmission has at least two transmission elements which are coupled in terms of the transmission of force. The electric drive furthermore contains a drive housing for accommodating the electric motor and the transmission. Moreover, the motor shaft is mounted by at least a first radial bearing and a second radial bearing and braced transverse to its axis of rotation. The second radial bearing being arranged radially offset to the axis of rotation.

Abstract: A self-locking mechanism has a driving member, a driven member, a stationary member, a lock holder and a number of lock elements. The lock holder encircles the driving member and the driven member. The lock holder has a support base and ribs extending from the support base. A lock element is coupled to the axial end portion of each rib. The lock elements are radially positioned between a radially outer surface of the driven member and the inner wall of the stationary member. The distance between the radially outer surface and the inner wall gradually decreases from a center to opposite circumferential sides. The maximum distance between the radially outer surface and the inner wall is greater than the diameter of the lock element, and the minimum distance is less than the diameter of the lock element.

Abstract: A tool, such as a mower, has a main body having an accessory, such as a mowing blade, and a motor for driving the accessory. A handle is rotatably connected to the main body. At least one operation assembly is associated with the handle for being operated by a user to control the motor when the handle is located in a predetermined position. A control system prevents the motor from being controlled by the operation assembly and halts the motor when the handle is located out of the predetermined position.

Abstract: A motor, which has a braking function and is used in a linear actuator includes a main body, a rotation shaft, a braking means and a stopping means. The rotation shaft penetrates the center of the main body. The braking means includes a braking ring and a helical ring. The braking ring includes a plurality of curved plates. The helical ring surrounds outer edges of the curved plates. Each curved plate is put on the outer periphery of the rotation shaft. The stopping means is disposed between the main body and the braking means for restricting the rotation of any of the curved plates. By this arrangement, a better braking and decelerating function can be achieved.

Abstract: A motor, which has a braking function and is used in a linear actuator includes a main body, a rotation shaft, a braking means and a stopping means. The rotation shaft penetrates the center of the main body. The braking means includes a braking ring and a helical ring. The braking ring includes a plurality of curved plates. The helical ring surrounds outer edges of the curved plates. Each curved plate is put on the outer periphery of the rotation shaft. The stopping means is disposed between the main body and the braking means for restricting the rotation of any of the curved plates. By this arrangement, a better braking and decelerating function can be achieved.

Abstract: A motor, which has a braking function and is used in a linear actuator includes a main body, a rotation shaft, a braking means and a stopping means. The rotation shaft penetrates the center of the main body. The braking means includes a braking ring and a helical ring. The braking ring includes a plurality of curved plates. The helical ring surrounds outer edges of the curved plates. Each curved plate is put on the outer periphery of the rotation shaft. The stopping means is disposed between the main body and the braking means for restricting the rotation of any of the curved plates. By this arrangement, a better braking and decelerating function can be achieved.

Abstract: A motor, which has a braking function and is used in a linear actuator includes a main body, a rotation shaft, a braking means and a stopping means. The rotation shaft penetrates the center of the main body. The braking means includes a braking ring and a helical ring. The braking ring includes a plurality of curved plates. The helical ring surrounds outer edges of the curved plates. Each curved plate is put on the outer periphery of the rotation shaft. The stopping means is disposed between the main body and the braking means for restricting the rotation of any of the curved plates. By this arrangement, a better braking and decelerating function can be achieved.

Abstract: A motor, which has a braking function and is used in a linear actuator includes a main body, a rotation shaft, a braking means and a stopping means. The rotation shaft penetrates the center of the main body. The braking means includes a braking ring and a helical ring. The braking ring includes a plurality of curved plates. The helical ring surrounds outer edges of the curved plates. Each curved plate is put on the outer periphery of the rotation shaft. The stopping means is disposed between the main body and the braking means for restricting the rotation of any of the curved plates. By this arrangement, a better braking and decelerating function can be achieved.

Abstract: Systems, devices, and methods for using an engine flywheel can provide both electric power output and braking of powered equipment. In particular, an engine flywheel can include a first rotor element configured to be coupled to a drive shaft for rotation with the drive shaft, one or more magnets carried by the first rotor element, the one or more magnets being configured for positioning with respect to a stator to generate electrical current upon rotation of the first rotor element, and a second rotor element configured to be coupled to the drive shaft for rotation with the drive shaft, the second rotor element including a braking surface configured for engagement with a braking element to slow the rotation of the second rotor element.

Abstract: A brake assembly for an elevator traction machine is disclosed. The brake assembly may include a rotating element, a fixed element mounted in operational association with the rotating element and a positioning device connected to the fixed element. The positioning device may additionally magnetically interface with the rotating element to facilitate centering of the fixed element relative to the rotating element.

Abstract: A rotary resistance device providing resistance to rotary object includes a magnetic field generating assembly having a magnetizable main body, an even number of magnetizable extended bodies, magnetizable coils and separators, two first caps, and two shaft sections; a magnetizable outer cylinder enclosing the magnetic field generating assembly therein and rotatably connected to the shaft sections; and a magnetorheological fluid filled in a space formed between the magnetic field generating assembly and the magnetizable outer cylinder.

Abstract: A magnet holder assembly suitable for use as an eddy current drive of a clutch includes magnet holder means for securing one or more magnets to a rotatable component of the clutch, a first permanent magnet radially retained by the magnet holder means, wherein the first permanent magnet has a beveled edge configured to mate with the magnet holder means, and a second permanent magnet radially retained by the magnet holder means. The first permanent magnet and the second permanent magnet have magnetic orientations arranged substantially opposite one another.

Abstract: A shed forming device for a weaving machine includes at least one rotary electric actuator for winding, around a pulley, a funicular element controlling at least one heddle and wherein an output shaft of the actuator rotates around a first axis and wherein the output shaft is provided with a pinion meshing with a toothed crown secured to the pulley and rotatable therewith around a second axis perpendicular to the first axis.

Abstract: A universal motor includes a wound rotor and a stator. The stator has stator windings and a stator code. The stator core has at least two poles with the stator windings wound thereon and a yoke connecting the poles. Each pole has a neck and a pole shoe forming a continuous pole arc facing the rotor. The ratio of the diameter of the motor to the width of the stator core measured across the poles is between 0.65˜0.95.

Abstract: A power-off brake for stopping a rotating shaft comprises a solenoid including a coil and armature, an opposing plate axially spaced from the armature, and a ball carrier rotor between the armature and opposing plate. The ball carrier rotor rotates with the shaft and carries spherical balls in recesses angularly space about the shaft. The armature and opposing plate have respective braking surfaces. In one embodiment, at least one braking surface is ramped to urge the plurality of balls radially outward against an internal surface of a surrounding outer race as the armature is forced toward the opposing plate under spring loading when current to the solenoid coil is shut off. In another embodiment, the braking surfaces are not ramped, such that the balls are merely clamped between the braking surfaces upon solenoid deactivation. Increased rolling friction stops rotation of the ball carrier rotor and the shaft without problematic wear.

Abstract: The electric motor consists of a rotor fitted with permanent magnets and comprises a stator the armature of which is made up of two parts: a stack of laminations forming round teeth and a solid tube-shaped field frame made of a material of the stainless steel kind enveloping the said stack of laminations. This armature constitutes a non-disengageable braking system that produces a damping effect in the face of possible movements of its rotor which are brought about and/or imposed by the members with which it collaborates. This motor can be used for driving a roto-linear actuator device with satellite rollers which is used as an actuator for maneuvering the control surfaces of an aircraft, for example an aileron.

Abstract: At least a rotor fixing portion and a bearing fitting portion are combined to form a hollow rotary shaft. The rotor of a rotary motor portion is fixed on the rotor fixing portion. A thrust radial bearing is fitted on the outer periphery of the bearing fitting portion and a screw nut is fitted to the bearing fitting portion. The rotor fixing portion and the bearing fitting portion are coupled with screw member(s) which are inserted into the hollow rotary shaft from one axial end of the hollow rotary shaft and axially extend inside the bearing fitting portion and the rotor fixing portion. A flange portion of the screw nut is fixed on an abutment portion of the bearing fitting portion in abutment with an end surface of an inner race of the thrust radial bearing that is located on the one axial end side.

Abstract: A blending appliance includes a housing with a jar receiving area defined between an upper housing and a support base. A blender jar includes a base portion and a receptacle portion, and is configured to be laterally received within the jar receiving area of the housing. A magnetic coupling system includes an upper magnetic coupler disposed in the base portion of the blender jar and a lower magnetic coupler disposed in the support base of the housing. The upper and lower magnetic couplers are magnetically coupled to one another for driving a blade assembly disposed in the receptacle portion of the blender jar. A brake mechanism is disposed on the upper magnetic coupler and is configured to stop rotation of the upper magnetic coupler when the blender jar is removed from the jar receiving area.

Abstract: A clutch including a rotatable member including a first ramp and first teeth, a second member held against rotation, axially displaceable, including a second ramp and second teeth, a spring urging the first and second members apart, and an electromagnet causing the first and second teeth to engage and prevent rotation in a first direction, rotation in a second direction separating the first and second members as the first ramp ascends the second ramp.

Abstract: Systems, devices, and methods for using an engine flywheel can provide both electric power output and braking of powered equipment. In particular, an engine flywheel can include a first rotor element configured to be coupled to a drive shaft for rotation with the drive shaft, one or more magnets carried by the first rotor element, the one or more magnets being configured for positioning with respect to a stator to generate electrical current upon rotation of the first rotor element, and a second rotor element configured to be coupled to the drive shaft for rotation with the drive shaft, the second rotor element including a braking surface configured for engagement with a braking element to slow the rotation of the second rotor element.

Abstract: Electric generator is disclosed having a stator and a rotor. The rotor being rotatable around a center axis and relatively to the stator and the stator includes a number of stator windings extending in freely exposed end windings. The stator and/or the rotor is provided with at least one barrier means which barrier means axially extends to such a manner that at least the end windings of the stator are at least partially covered.

Abstract: This invention generates electric power from the rotational motion of the braking system of wheeled vehicle having brake rotors. As the brake rotor, comprised of conducting surface regions and non-conducting surface regions rotates, a magnet, which is disposed in close proximity to the brake rotor's conducting and non-conducting surface regions, generates an electric current to provide electric energy to a energy supply device, typically a battery.

Abstract: Apparatus to provide motor backdrive resistance are described. An example apparatus described herein includes a brake to engage an output shaft of a motor. The example apparatus also includes a brake release arm operably coupled to the brake. A reaction arm is fixed relative to the brake release arm and operatively coupled to the motor. The reaction arm causes the brake to disengage the output shaft of the motor in response to a reaction torque of the motor.

Abstract: This actuator for driving a home-automation screen includes an electric motor (M), a reduction gear (R) for transmitting the movement of the motor to the home-automation screen and a brake. The actuator includes a direct current electronic switching motor (M) and a mechanical brake (2) having a continuous drag torque.

Abstract: An aircraft brake system electromechanical actuator is provided. The actuator is configured with features that allow the electric motor to be a line replaceable unit. One such feature is a foreign-object-damage shield that inhibits dust, debris, and/or other particulate contaminants from entering the electromechanical actuator during electric motor removal and replacement.

Abstract: An electro-mechanical linear actuator unit comprising an actuator housing that accommodates at least two electric drives, each of which, when actuated by a control device, sets an associated drive of a respective spindle drive into rotation for adjusting linear movement of the associated spindle drive in order to produce relative linear adjustment of a control rod. The two electric drives are located in the actuator housing in such manner that relative adjustment can be produced by simultaneous actuation of the two electric drives, as the sum of the adjustment movements of the associated spindle drives, or by actuating a single electric drive, as the adjustment movement of the associated spindle drive. A respective brake is provided, in an area of each of the two electric drives, which can be selectively actuated by the control device to then prevent the adjustment movement of the respective associated spindle drive.

Abstract: A magnetic brake has an outer stator surrounding an inner stator with a circumferential slot between the outer stator and the inner stator. A coil is provided in the inner stator adjacent to the circumferential slot. A drag plate is attached to a rotatable shaft extending centrally through the inner stator. A drag ring joined to the drag plate extend into the circumferential slot. The drag ring may be an annular cylindrical ring section separate from the drag plate. Vent holes pass through the inner stator adjacent and parallel to the shaft. The magnetic brake uses both hysteresis and eddy current braking.

Abstract: A linear actuator with an electric drive device includes a stator and a rotor, wherein the stator is arranged in a fixed location in a drive housing and the rotor is mounted for rotary motion relative to the stator and with a transmission arrangement which is arranged coaxial with an axis of rotation of the drive device to convert the rotary movement of the rotor into a linear movement, wherein a threaded spindle of the transmission arrangement is non-rotatably connected to the rotor and positively coupled to a spindle nut slidably accommodated in the drive housing and connected to a torque tube, which extends along the axis of rotation, and wherein a brake device is assigned to the rotor and/or to the threaded spindle.

Abstract: This disclosure discloses a motor including a motor body unit configured to output rotation power, a brake unit fixed to a housing of the motor body unit with a bolt, and a collar. The collar is arranged between the motor body unit and the brake unit, and in which the bolt is inserted. The collar forms a space between the housing of the motor body unit and a fixing member of the brake unit. The collar is fixed with its end portion being inserted into at least one of the housing and the fixing member.

Abstract: A linear actuator with an electric drive device includes a stator and a rotor, wherein the stator is arranged in a fixed location in a drive housing and the rotor is mounted for rotary motion relative to the stator and with a transmission arrangement which is arranged coaxial with an axis of rotation of the drive device to convert the rotary movement of the rotor into a linear movement, wherein a threaded spindle of the transmission arrangement is non-rotatably connected to the rotor and positively coupled to a spindle nut slidably accommodated in the drive housing and connected to a torque tube, wherein bearing means for a rotatable mounting of the rotor are provided in opposite end regions of the drive housing.