A device for adjusting an object, for example a roll in a roll stand including a rotatably mounted pressure spindle and a torque motor having a stator and a rotor for rotationally driving the pressure spindle. In addition, the device includes a fixedly arranged pressure nut, which is engaged with the pressure spindle in a rotationally coupled manner via a thread to generate an axial movement of the pressure spindle in case of its rotation. Due to the axial movement generated in this way, the device can generate an axial adjustment force and transmit it to the object to be adjusted.

A vehicle steering system comprises: a motor assembly operably coupled to a steering rack, the motor assembly comprising a motor having a rotor and a motor position sensor configured to sense a rotor angle of the motor in a single-turn range; and a rotary-to-linear conversion mechanism operably coupled between the motor assembly and the steering rack, the rotary-to-linear conversion mechanism comprising a rotor operably coupled to the rotor of the motor. A processor calculates an absolute angular position of the pinion in a full-turn range of rotation of the pinion based on the sensed rotor angle of the motor and a pinion angle sensed by a pinion angle sensor in a single-turn range, or based on the sensed rotor angle of the motor and an angle of the rotor of the rotary-to-linear conversion mechanism sensed by an angular position sensor in the single-turn range.

A pressure supply unit for a brake system including a booster body that defines an axially extending cylinder. A piston is slideable within the cylinder. The piston defines a bore that receives a spindle. The spindle is rotationally fixed and axially moveable for providing the axial movement of the piston. A motor is positioned about the spindle and is configured to axially translate the spindle and piston. A ball and socket joint connects the piston and spindle while accommodating pivoting movement of the spindle. The ball and socket joint includes a ball at a front end of the spindle and a socket in the bore of the piston which receives the ball.

A pressure supply unit for a brake system including a booster body that defines an axially extending cylinder. A piston is slideable within the cylinder. The piston defines a bore that receives a spindle. The spindle is rotationally fixed and axially moveable for providing the axial movement of the piston. A motor is positioned about the spindle and is configured to axially translate the spindle and piston. A ball and socket joint connects the piston and spindle while accommodating pivoting movement of the spindle. The ball and socket joint includes a ball at a front end of the spindle and a socket in the bore of the piston which receives the ball.

A linear actuator includes a motor, a screw mechanism, and a bearing. The motor includes a stator and a rotor rotatable relative to the stator. The rotor includes a rotor shaft element. The screw mechanism includes a screw element and a follower drivingly engaged with the screw element, with rotation of the screw element causing the follower to shift axially along the screw element. The elements are drivingly intercoupled. The bearing rotatably supports a first one of the elements. The first one of the elements provides support to a second one of the elements such that the bearing also rotatably supports the second one of the elements.

A linear actuator includes a motor, a screw mechanism, and a bearing. The motor includes a stator and a rotor rotatable relative to the stator. The rotor includes a rotor shaft element. The screw mechanism includes a screw element and a follower drivingly engaged with the screw element, with rotation of the screw element causing the follower to shift axially along the screw element. The elements are drivingly intercoupled. The bearing rotatably supports a first one of the elements. The first one of the elements provides support to a second one of the elements such that the bearing also rotatably supports the second one of the elements.

A lift vehicle comprises a base having a plurality of wheels, a battery arranged within the base, a drive motor powered by the battery and configured to drive at least one of the plurality of wheels and propel the base, a retractable lift including a first end coupled to the base and being movable between an extended position and a retracted position, a work platform supported by a second end of the retractable lift, and a linear actuator having a lift motor with a rotor. The lift motor is powered by the battery, and the linear actuator is coupled to the retractable lift so that rotation of the rotor moves the retractable lift between the extended position and the retracted position. The lift vehicle further includes an electromagnetic brake coupled to a first side of the lift motor.

A lift vehicle comprises a base having a plurality of wheels, a battery arranged within the base, a drive motor powered by the battery and configured to drive at least one of the plurality of wheels and propel the base, a retractable lift including a first end coupled to the base and being movable between an extended position and a retracted position, a work platform supported by a second end of the retractable lift, and a linear actuator having a lift motor with a rotor. The lift motor is powered by the battery, and the linear actuator is coupled to the retractable lift so that rotation of the rotor moves the retractable lift between the extended position and the retracted position. The lift vehicle further includes an electromagnetic brake coupled to a first side of the lift motor.

A head-mounted display device includes a housing, a pair of display modules, a pair of cameras, a driving module and a control system. The housing can cover eyeballs of the user. The cameras are respectively fixed to the display modules to capture images of the eyeballs. The driving module is coupled to the display module to move the display modules relative to the housing. The control system is electrically connected to the of cameras and the driving module. An adjustment method is applicable to the above-mentioned head-mounted display device. An image of the corresponding eyeball is captured by one of the cameras. The control system calculates a deviation between a center of a pupil of the corresponding eyeball and a center of the corresponding image according to the image. The control system controls the driving module to move the display modules relative to the housing according to the deviation.

A head-mounted display device includes a housing, a pair of display modules, a pair of cameras, a driving module and a control system. The housing can cover eyeballs of the user. The cameras are respectively fixed to the display modules to capture images of the eyeballs. The driving module is coupled to the display module to move the display modules relative to the housing. The control system is electrically connected to the of cameras and the driving module. An adjustment method is applicable to the above-mentioned head-mounted display device. An image of the corresponding eyeball is captured by one of the cameras. The control system calculates a deviation between a center of a pupil of the corresponding eyeball and a center of the corresponding image according to the image. The control system controls the driving module to move the display modules relative to the housing according to the deviation.