Hydromechanical drive assembly
AssigneeLinde Aktiengellschaft
InventorFranz Forster
Life of this patent
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Abstract
A hydromechanical drive assembly having a hydrostatic axial piston motor with a housing and a swash plate and a cylindrical drum located in the housing. A transmission having a housing is located downstream of and coaxial with the axial piston motor and a planetary gear is located in the transmission. A transmission-side driven shaft extends out of each end of the drive assembly. The cylindrical drum and the driven shaft have the same axis of rotation. Spring-actuated hydraulically releasable devices are located in the housing to non-rotatably connect the cylindrical drum of the axial piston motor directly to a ring gear which is non-rotatably connected to the driven shaft.
Claims21
A hydromechanical drive assembly consisting of a hydrostatic axial piston motor having an outer motor housing, a swash plate and a cylindrical drum located in said outer motor housing, a mechanical transmission having an outer transmission housing aligned with said outer motor housing and located downstream of and coaxial with said axial piston motor and at least one sun gear coaxial with said axial piston motor, a shaft coaxial with said mechanical transmission and said cylindrical drum extending through said mechanical transmission and said axial piston motor, and means including said sun gear for operatively connecting said cylindrical drum in said axial piston motor to said shaft, whereby rotation of said cylindrical drum rotates said shaft.
A hydromechanical drive assembly consisting of a hydrostatic axial piston motor having an outer motor housing, a swash plate and a cylindrical drum located in said outer motor housing, a mechanical transmission having an outer transmission housing aligned with said outer motor housing and a planetary gear located downstream of and coaxial with said axial piston motor and including at least one sun gear coaxial with said axial piston motor, a shaft coaxial with said mechanical transmission and with said cylindrical drum extending through said mechanical transmission and said axial piston motor, first stage planetary gears mounted for rotation within said outer transmission housing, longitudinal axially extending external splines formed on said cylindrical drum and on said sun gear, and a slide member surrounding a portion of said cylindrical drum and said sun gear, said slide member having longitudinal axially extending internal splines cooperating with said longitudinal axially extending external splines on said cylindrical drum and said sun gear for non-rotatably connecting said cylindrical drum to said sun gear, whereby rotation of said cylindrical drum rotates said slide to rotate said sun gear and said shaft.
Dependencies are inferred from the claim text.