Hydromechanical transmission with a hydraulic motor and a mechanical multi-step variable speed transmission

摘要

A hydromechanical transmission has a hydraulic pump-driven hydraulic motor of a hydrostatic continuously variable transmission and a mechanical multi-step variable speed transmission connected to a drive shaft of the hydraulic motor, which can be shifted into operation by a gear shifting device. In order to adapt the hydromechanical transmission with as compact as possible a design to diverse installation cases with little effort, the gear shifting device is arranged directly adjacent to the hydraulic motor and is consolidated with the latter into a preassembled constructional unit.

主权项

1. A hydromechanical transmission, comprising:
a hydraulic pump-driven hydraulic motor of a hydrostatic continuously variable transmission; and a mechanical multi-step variable speed transmission attached to a drive shaft of the hydraulic motor, which is shifted into operation by a gear shifting device, wherein the gear shifting device is arranged directly adjacent to the hydraulic motor and is consolidated therewith into a preassembled constructional unit, and wherein the drive shaft has an axial channel which is connected on a transmission side end of the drive shaft to a pressure control space of the gear shifting device.