A cone brake no-back includes an input no-back disk, an output no-back disk; and a no-back ball ramp mechanism operably connected to the input no-back disk and the output no back disk. An input no-back cone is operably connected to and supportive of the input no-back disk. The input no-back cone is axially loaded by an input no-back spring. An output no-back cone is operably connected to and supportive of the output no-back disk. The output no-back cone is axially loaded by an output no-back spring. A no-back input shaft is operably connected to the input no-back disk and the output no back disk, and a no-back output shaft is operably connected to the output no back disk.

A cone brake no-back includes an input no-back disk, an output no-back disk; and a no-back ball ramp mechanism operably connected to the input no-back disk and the output no back disk. An input no-back cone is operably connected to and supportive of the input no-back disk. The input no-back cone is axially loaded by an input no-back spring. An output no-back cone is operably connected to and supportive of the output no-back disk. The output no-back cone is axially loaded by an output no-back spring. A no-back input shaft is operably connected to the input no-back disk and the output no back disk, and a no-back output shaft is operably connected to the output no back disk.

A rotation velocity adjusting module includes a fixed axle, a rotating component and a rotation velocity adjusting mechanism. The rotating component is pivoted to the fixed axle. The rotation velocity adjusting mechanism includes a driven component, a driving component and a contact component. The driven component is rotatably connected to the rotating component. The driving component and the contact component are disposed on the driven component. When a rotation velocity of the rotating component reaches a threshold value, the driving component drives the driven component to rotate by the change of centrifugal force, so as to switch states of the contact component.

A rotation velocity adjusting module includes a fixed axle, a rotating component and a rotation velocity adjusting mechanism. The rotating component is pivoted to the fixed axle. The rotation velocity adjusting mechanism includes a driven component, a driving component and a contact component. The driven component is rotatably connected to the rotating component. The driving component and the contact component are disposed on the driven component. When a rotation velocity of the rotating component reaches a threshold value, the driving component drives the driven component to rotate by the change of centrifugal force, so as to switch states of the contact component.

A four-state joint brake module is provided to selectably stop or allow motion in both directions resulting in a mechanism that has four possible states: 1) allowing rotation only in a clockwise direction, 2) allowing rotation only in a counter-clockwise direction, 3) allowing free rotation in both directions, and 4) stopping motion in both directions. In robotic and other motion control applications the use of this four-state joint brake module in a multi-segmented linkage allows for position holding without continuous application of power and fail safe behavior. It further allows for the ability to toggle this useful state behavior independently in either direction is relevant for robotic applications.

The invention relates to a bearing assembly (10) comprising at least one first bearing element (12) and a second bearing element (14) which are rotatably connected relative to each other along a common longitudinal axis (14). The bearing assembly (10) comprises a brake device (18) which inhibits the rotation of the two bearing elements (12) relative to each other by means of a frictional force produced by the brake device (18), wherein the brake device (18) has at least one frictional element (20) and at least one clamping device (22), by means of which the frictional element (20) is permanently clamped against one of the two bearing elements (12). The bearing assembly also comprises a coupling device (30) which can be moved between an open state and a closed state. In the closed state, the brake device (18) is engaged, whereby when the two bearing elements (12) rotate relative to each other, the rotation is inhibited by the frictional force produced by the brake device (18), and in the open state, the brake device (18) is disengaged.

A work apparatus having a work tool and having a combustion engine which drives the work tool has a start enrichment device for the combustion engine and a braking arrangement for the work tool. The work apparatus has an operating mode selector for actuating the start enrichment device. The start enrichment device actuates the braking arrangement in at least one start position. Low actuating forces and a simple configuration are achieved when the braking arrangement is a differential band brake.

A self-locking mechanism, a motor, and a linear actuator, which relate to the field of self-locking mechanisms and have a stable self-locking performance. The self-locking mechanism includes a friction ring and a mounting seat fixed relative to the friction ring, a notch being provided on the friction ring, the friction ring being sleeved over a rotary body to be braked, a mounting portion for mounting the friction ring being defined on the mounting seat, the mounting seat pressing the friction ring towards the notch to apply a braking force against the rotary body.

A self-locking arrangement for a motor and a linear actuator which relates to motors. The motor has a self-locking capability, a good stability, a low noisy during operation, and a good user experience. The self-locking arrangement includes an end cap mounted on the motor and a friction ring sleeved over a drive shaft of the motor, a notch being provided on the friction ring, a limiting portion being provided at an outer periphery of the friction ring, the end cap being fitted with the limiting portion, so that the friction ring clasps the drive shaft in a case where the drive shaft rotates along a first direction.

A system includes a permanent magnet generator (PMG) with a generator shaft defining a longitudinal axis. A brake system includes a brake shaft with a first end operatively connected to the generator shaft for selectively rotating with the generator shaft or braking to slow the generator shaft. A shear shaft is operatively connected to a second end of the brake shaft axially opposite the first end along the longitudinal axis. The brake system includes a wedge with a first position radially withdrawn from the brake shaft, and a second position radially pressed against the brake shaft for applying braking forces to the brake shaft and to the generator shaft.