摘要:
An arrangement (1) for driving a wheel of a motor vehicle has an electric machine (6) and a transmission (4). The transmission (4) is downstream of the electric machine (6) and is arranged within the electric machine (6). A common cooling device (14) with a cooling water jacket (15) is utilized for cooling both the electric machine (6) and the transmission (4).
摘要:
A geared motor includes a gear mechanism portion that meshes with a rotational shaft provided within a main motor unit. The gear mechanism portion has a multistage planetary gear reducing mechanism. The multistage planetary gear reducing mechanism includes a first stage gear formed helically and a final stage gear formed with spur teeth.
摘要:
A torsion output tool has a housing, a motor and a transmission assembly. The transmission assembly includes a first planetary gear train. The first planetary gear train has a first planetary gear carrier, a first level planetary gear, a first inner ring gear disposed outside the first level planetary gear and meshing therewith, and a first central wheel sliding in a direction of a first axis to a first position and a second position. The transmission assembly further has a locking member. The locking member slides synchronously with the first central wheel and only locks the relative circumferential positions of the output shaft and the first planetary gear carrier when the first central wheel is at the first position and only constitutes circumferential engagement with the first planetary gear carrier when the first central wheel is at the second position to achieve a drilling mode and an impact mode of operation for the tool.
摘要:
A linear actuator is provided. In one embodiment, the actuator includes a motor, a gearbox, and a linear actuation device. The motor serves as a primary input to provide a rotational input to the gearbox, which generates a corresponding rotational output. The linear actuation device converts the rotational output of the gearbox into a linear motion for driving a load in a linear direction. The actuator includes an override system as a secondary input. The override system may be operated to drive the gearbox in the event that the motor becomes non-operational. Anti-back-driving devices may be provided to prevent back-driving of the motor and of the override system. In the context of a resource extraction system, the motor may be an electric motor powered by subsea electronic control system. Additional systems, devices, and methods are also disclosed.
摘要:
Planetary gear systems, transmissions, and apparatuses include at least one non-fixed annular gear, at least one non-fixed sun gear, at least one compound planet gear meshed between the at least one non-fixed annular gear and the at least one non-fixed sun gear, and at least one fixed gear meshed with the at least one compound planet gear. Rotational input to one of the at least one non-fixed annular gear and the at least one non-fixed sun gear results in an opposite rotational output of the other of the at least one non-fixed annular gear and the at least one non-fixed sun gear.
摘要:
A rotation-transmitting mechanism capable of obtaining a high deceleration ratio in a small number of stages, and a conveying apparatus and driving apparatus using the rotation-transmitting mechanism are provided. In one form, a rotation-transmitting mechanism includes an inner rotating body and an outer rotating body arranged coaxially with the inner rotating body. Further, the rotation-transmitting mechanism includes a driving rotating body and rotating body arranged on an input side (lower stage), and two planetary rotating bodies arranged on an output side (upper stage). When the driving rotating body is rotated by a motor on the input side, the two planetary rotating bodies revolve around the inner rotating body while rotating on the output side. At this time, the planetary rotating bodies revolve very slowly around the inner rotating body.
摘要:
A drive train of a fluid flow power plant, in particular of a wind power plant or of a tidal power plant, includes a rotor hub that bears at least one rotor blade and a transmission that has a plurality of planetary stages. The transmission is configured to transmit a rotational movement of a rotor shaft connected to the rotor hub to a drive of a downstream generator in a stepped-up fashion. The rotor hub, the transmission, and the generator are arranged coaxially with respect to one another. The transmission is embodied as a power-split transmission with three planetary stages so as to form a suitable transmission ratio of a rotational movement of the rotor shaft on the drive of the generator in a compact fashion.
摘要:
Structural arrangements of wheel drive components facilitate the use of robust main roller bearings that are widely spaced apart from one another. This wide spacing minimizes the torque borne by the bearings for a given external load, because at least one bearing is placed closer to the expected load application point (e.g., the center of gravity of the wheel attached to the wheel hub of the drive unit). The present wheel drive bearings can support a heavy external load without expanding the overall size and configuration of a given wheel drive application.
摘要:
The invention relates to a subassembly for a brake actuator which is provided for an electromechanically operated parking brake. The subassembly comprises a drive device and gear device for generating and transmitting a torque to a brake device and a fixing element which secures the arrangement of the gear device relative to the drive device, an internal-toothed wheel of the gear device being integrated in the fixing element.
摘要:
Disclosed are a decelerator configured so that a planet gear type first deceleration unit is provided inside a cycloid type second deceleration unit to provide eccentric rotational force to the second deceleration unit and a motor brake with the same. In the decelerator, the increase in axial thickness of a motor is restrained, and a deceleration ratio is effectively increased. In the motor brake with the decelerator, the deceleration ratio of the motor is increased, and the increase in total length of the motor brake is restrained by the decelerator, thereby improving space utilization.