Hydrostatic unit for a hydro-mechanical torque division transmission
AssigneeDeere & Company
InventorUli Otten
Life of this patent
Estimating the term…
Abstract
A hydrostatic unit for a hydro-mechanical torque division transmission for a work vehicle having a mounting frame (10, 12) in which the shafts (18, 20) of hydrostatic devices (22, 24) are arranged parallel to one another are supported by bearing units (14, 16, 42, 48). The mounting frame (10, 12), the hydrostatic units (22, 24), the input shaft (36), the output shafts (44, 50, 56, 64) and the bearing units (14, 16, 42, 48, 54) together form a functioning hydrostatic module which can be pre-assembled. By supporting an input shaft (36) of the hydrostatic unit on the mounting frame (10, 12) by a bearing unit (38) such that it can rotate and is connected to the shaft (18) of the pump (22), a hydrostatic unit is provided that can be used in many different transmission applications.
Claims20
A hydrostatic unit for a hydro-mechanical torque division transmission for a work vehicle, with a mounting frame (10, 12) in which shafts (18, 20) of at least two hydrostatic devices (22, 24) are arranged parallel to one another and are supported by bearing units (14, 16, 42, 48) such that they can rotate, and on which adjusting devices of the hydrostatic devices (22, 24) are supported, the hydrostatic devices being in the form of a variable-displacement pump (22) and a hydraulic motor (24) and being hydraulically connected, wherein an input shaft (36, 100) of the hydrostatic unit is supported on the mounting frame (10, 12) by at least one bearing unit (38, 102, 104) such that it can rotate and is connected to the shaft (18) of the variable-displacement pump (22) via a gear-set (66, 46;
- 108, 46), at least two output shafts (44, 50, 56, 64, 110) are arranged parallel to one another and are supported on the mounting frame (10, 12) by at least one bearing unit (42, 48, 54, 112), at least one of the output shafts (44, 64) is driven mechanically and at least one of the output shafts (50, 56, 110) is driven hydraulically and the mounting frame (10, 12), the hydrostatic devices (22, 24), the input shaft (36, 100), the output shafts (44, 50, 56, 64, 110) and the bearing units (14, 16, 38, 42, 48, 54, 102, 104, 112) together form a functioning hydrostatic sub-assembly that can be pre-assembled.
Dependencies are inferred from the claim text.