Various embodiments include a transmission element for a spring return of an actuating drive comprising: a toothed wheel element with teeth at least in sections; and a locking element including a locking section for locking engagement in the teeth of the toothed wheel element to prevent a rotation of the toothed wheel element in a return direction. The locking element includes a safety element mechanically operatively connected to the locking section and elastically deformable in order to release the locking of the toothed wheel element by elastic deformation of the safety element at a torque of the toothed wheel element in the return direction greater than a safety torque limit.

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.

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.

Gear device for fitting to a drive shaft, having a base member which at least partially surrounds the drive shaft, a pinion which is arranged in the assembled state on the drive shaft, and a toothed rod which in the assembled state is assembled on the base member cooperates with the pinion and extends through the base member, wherein the base member is open at one side in such a manner that it can be fitted to a drive shaft in a radial direction. The gear device is characterized in that the base member comprises a retention member, wherein the retention member is configured to secure the pinion in the assembled state arranged on the base member in a position relative to the base member without additional components.

Gear device for fitting to a drive shaft, having a base member which at least partially surrounds the drive shaft, a pinion which is arranged in the assembled state on the drive shaft, and a toothed rod which in the assembled state is assembled on the base member cooperates with the pinion and extends through the base member, wherein the base member is open at one side in such a manner that it can be fitted to a drive shaft in a radial direction. The gear device is characterized in that the base member comprises a retention member, wherein the retention member is configured to secure the pinion in the assembled state arranged on the base member in a position relative to the base member without additional components.

A gearwheel arrangement for a drive train of a motor vehicle includes a drive shaft, a gearwheel, and a slipping clutch. The gearwheel is seated on the drive shaft and includes a toothing system. The slipping clutch is disposed at a point on the gearwheel between the toothing system and the drive shaft. The slipping clutch opens if a limit torque to be transmitted between the drive shaft and the toothing system is exceeded. In an example embodiment, the slipping clutch has a shaft/hub connection with a shaft region and a hub region, and the shaft region is seated via a press fit on the hub region.

A gearwheel arrangement for a drive train of a motor vehicle includes a drive shaft, a gearwheel, and a slipping clutch. The gearwheel is seated on the drive shaft and includes a toothing system. The slipping clutch is disposed at a point on the gearwheel between the toothing system and the drive shaft. The slipping clutch opens if a limit torque to be transmitted between the drive shaft and the toothing system is exceeded. In an example embodiment, the slipping clutch has a shaft/hub connection with a shaft region and a hub region, and the shaft region is seated via a press fit on the hub region.

Provided herein is a transmission system including: a housing; a pair of double-layered gears for transmitting a power from a motor to a screw driver shaft defining a transmission axis, the pair of gears including a first bigger gear and a first smaller gear; a torque cup for covering a leading end portion of the housing through which the shaft is extended from the housing; a first set of planetary gears for driving the shaft, regularly surrounding and meshing the first smaller gear; and a first ring gear for sliding axially against the housing and meshing the first bigger gear and/or the first set of planetary gears; wherein the torque cup can be turned to force the first ring gear to slide axially.

Provided herein is a transmission system including: a housing; a pair of double-layered gears for transmitting a power from a motor to a screw driver shaft defining a transmission axis, the pair of gears including a first bigger gear and a first smaller gear; a torque cup for covering a leading end portion of the housing through which the shaft is extended from the housing; a first set of planetary gears for driving the shaft, regularly surrounding and meshing the first smaller gear; and a first ring gear for sliding axially against the housing and meshing the first bigger gear and/or the first set of planetary gears; wherein the torque cup can be turned to force the first ring gear to slide axially.

The present invention relates to a drive and/or adjustment device for driving and/or adjusting a rotatable assembly, for example a large rolling bearing ring of a wind turbine or a slewing gear of a construction machine or of a hoist, comprising an output element for rotationally driving and/or adjusting the rotatable assembly, a transmission which is connected upstream of the output element and has at least one torque-transmitting gear, and an overload safety mechanism for the rotatable assembly. The overload safety mechanism is provided on the gear, which is divided and has two gear parts that are torque-transmittingly interconnected via spur toothing and held axially in spur toothing engagement by an axial securing means which yields at a predetermined axial loading between the gear parts.