An overload protection assembly includes a first gear of a servo, a second gear of the servo, defining a receiving space; and a clutch configured to coaxially couple the first gear to the second gear and transmit torque between the first gear and the second gear. The clutch includes an elastic member arranged around the first gear and received in the receiving space. The elastic member includes a number of protrusions at a circumferential surface thereof, and a number of recesses are defined in a lateral surface of the receiving space. The protrusions are used to be respectively engaged with corresponding ones of the recesses so as to couple the firs gear to the second gear when a value of the torque is less than a preset value, and disengageable from the corresponding ones of the recesses so as to disconnect the first gear.

A cover lift system for a spa includes a lifter handle having an upper arm and a lower arm telescopically connected to the upper arm, the upper arm being configured for operative connection to a cover of a spa, and the lower arm being configured for pivotal connection to a base of the spa, and an adjuster mechanism associated with the lifter handle for selectively adjusting a length of the lifter handle to allow for use of the lifter handle with spas of varying sizes.

The present disclosure is directed to a shaft assembly (95) for a turbine engine (10), wherein the turbine engine includes a fan or propeller assembly (14) and an engine core (20), and further wherein the fan or propeller assembly includes a gearbox (45), and wherein the engine core includes one or more rotors (32). The shaft assembly (95) includes a flexible shaft (100) defining a first end (101) and a second end (102) along the axial direction, wherein the first end is connected to the engine core (20) and the second end is connected to the gearbox (45), and wherein a plurality of splines (110) is defined at the second end (102) and coupled to a spline interface (46) at the gearbox (45); and a coupling (120) extended at least partially in the radial direction and coupled to the engine core and the flexible shaft.

A torque-limiting torsion gimbal for connecting an electric motor to a camshaft phaser includes an elongated body configured to extend from an end of a motor shaft of the electric motor to an input of a planetary gear assembly of the camshaft phaser; an angular-displacement-resistant end of the elongated body configured to engage an end of the motor shaft; and a key, positioned at another end of the elongated body opposite to the angular-displacement-resistant end, and configured to be received within and engage a slot at the input of the planetary gear assembly of the camshaft phaser to transmit torque from the electric motor to the planetary gear assembly; the elongated body prevents an angular displacement of the motor shaft relative to the input of the planetary gear assembly and permits the angular displacement of the motor shaft relative to the input of the planetary gear assembly when a mechanical stop of the camshaft phaser is engaged.

A torque-limiting torsion gimbal for connecting an electric motor to a camshaft phaser includes an elongated body configured to extend from an end of a motor shaft of the electric motor to an input of a planetary gear assembly of the camshaft phaser; an angular-displacement-resistant end of the elongated body configured to engage an end of the motor shaft; and a key, positioned at another end of the elongated body opposite to the angular-displacement-resistant end, and configured to be received within and engage a slot at the input of the planetary gear assembly of the camshaft phaser to transmit torque from the electric motor to the planetary gear assembly; the elongated body prevents an angular displacement of the motor shaft relative to the input of the planetary gear assembly and permits the angular displacement of the motor shaft relative to the input of the planetary gear assembly when a mechanical stop of the camshaft phaser is engaged.

An example robot includes: a motor disposed at a joint configured to control motion of a member of the robot; a transmission including an input member coupled to and configured to rotate with the motor, an intermediate member, and an output member, where the intermediate member is fixed such that as the input member rotates, the output member rotates therewith at a different speed; a pad frictionally coupled to a side surface of the output member of the transmission and coupled to the member of the robot; and a spring configured to apply an axial preload on the pad, wherein the axial preload defines a torque limit that, when exceeded by a torque load on the member of the robot, the output member of the transmission slips relative to the pad.

A drive unit of a top drive system includes a drive stem having a plurality of ports from an exterior thereof to an interior thereof. A plurality of sliding coupling members is disposed in the ports. A coupling collar encircles the drive stem and has actuation surfaces and recessed surfaces on an interior thereof, wherein the recessed surfaces align with the ports when the coupling collar is in a first position, and the actuation surfaces align with the ports when the coupling collar is in a second position.

An aircraft hybrid propulsion system (5) comprises an internal combustion engine (10) comprising a main drive shaft (24), an electric machine (28) comprising an electric machine rotor (78), a propulsor (12) mounted to a propulsor shaft (62), and a clutch arrangement configured to selectively couple each of the gas turbine engine main drive shaft (24) and electric machine rotor (78) to the propulsor drive shaft (62). The electric machine rotor (78) is mounted coaxially with the main drive shaft (24) and the clutch arrangement comprises a first overrunning clutch (52) configured to couple the main drive shaft (24) to the propulsor drive shaft (62), and a second overrunning clutch (54) configured to couple the electric machine rotor (78) to the propulsor drive shaft (62).

A system that includes a driving component, such as a motor, and a driven component. The system also includes a torque limiter positioned between the driving component and the driven component. The driving component is coupled to a driving end of the torque limiter and the driven component is coupled to a driven end of the torque limiter. The torque limiter is configured to assume a normal operating state with no slippage between the driving and driven ends of the torque limiter and an over-torque operating state with slippage occurring between the driving and driven ends of the torque limiter. The torque limiter includes a metal moving part that assumes a first position when the torque limiter is in the normal operating state and a second position different than the first position when the torque limiter assumes the over-torque operating state. An inductive proximity sensor monitors the position of the metal moving part.

A low speed spool multispeed transmission includes an input shaft configured to connect to a low pressure spool gearbox, a gear system connected to the input shaft and configured to convert an input speed of the input shaft to an output speed within a predetermined speed range, wherein the gear system includes a plurality of gear states to change the ratio between the input speed and the output speed, and an output shaft connected to the gear system to be rotated by the gear system at the output speed, the output shaft configured to connect to a generator. The input shaft and the output shaft can be coaxial.