초록 ▼

A wheel drive comprises a hollow wheel support having a projection and in which is housed an axial-piston hydraulic motor having an output shaft connected via planetary gearing to the hub. To this end the projection is provided with mounting pins constituting the planet carrier of a first set of pla

A wheel drive comprises a hollow wheel support having a projection and in which is housed an axial-piston hydraulic motor having an output shaft connected via planetary gearing to the hub. To this end the projection is provided with mounting pins constituting the planet carrier of a first set of planet gears which mesh with a ring gear formed integrally inside the hub and with a sun gear that may be provided directly on the motor output shaft or that may be the output of a second set of planetary gears whose planet gears mesh with the ring gear of the hub and whose sun gear is connected to the motor output shaft. A clutch can be provided on this motor output shaft to disconnect it from the respective sun gear, and the inner end of the motor shaft may be acted on by a wheel brake.

대표청구항 ▼

A wheel drive comprising: a generally nonrotatable wheel support having a hollow projection; a hydraulic motor mounted on said support at least partially in said projection and having an outwardly directed output shaft having an outer end; a wheel hub supported solely and rotatable on said projectio

A wheel drive comprising: a generally nonrotatable wheel support having a hollow projection; a hydraulic motor mounted on said support at least partially in said projection and having an outwardly directed output shaft having an outer end; a wheel hub supported solely and rotatable on said projection about a wheel axis, having an open outer side turned away from said motor, and formed internally with axially elongated teeth forming a ring gear centered on said axis; an end plate extending generally perpendicular to said axis and releasably secured to said hub over said open outer side thereof, said plate forming at said axis a journal for said outer end of said output shaft; at least one mounting pin integral with said projection and extending therefrom parallel to but offset from said axis, said pin having an inner end fixed at said projection and a free outer end; a planet gear rotatable on said free end of said pin and meshing with said ring gear; a sun gear rotatable about and centered on said axis and meshing with said planet gear; and means operatively connecting said sun gear to said output shaft for driving said hub by said motor through said gears.