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An HST housing axle driving apparatus for a small-sized running vehicle, such as a tractor, in which an axle casing is divided into a left-side half axle casing and a right-side half axle casing. In one of the left- and right-side half axle casings are disposed a hydraulic pump provided with a verti

An HST housing axle driving apparatus for a small-sized running vehicle, such as a tractor, in which an axle casing is divided into a left-side half axle casing and a right-side half axle casing. In one of the left- and right-side half axle casings are disposed a hydraulic pump provided with a vertical pump shaft and a hydraulic motor provided with a horizontal motor shaft. In the other of the left- and right-side half axle casings are disposed a speed reduction shaft and a differential gear unit, so that a driving force is adapted to be transmitted from the vertical pump shaft to the horizontal motor shaft.

대표청구항 ▼

An axle driving apparatus comprising: an axle housing, said axle housing being divided into a first axle casing and a second axle casing; a differential gear unit disposed within said axle housing; a first axle disposed within said first axle casing; a second axle disposed within said second axle ca

An axle driving apparatus comprising: an axle housing, said axle housing being divided into a first axle casing and a second axle casing; a differential gear unit disposed within said axle housing; a first axle disposed within said first axle casing; a second axle disposed within said second axle casing; a hydraulic pump disposed within said axle housing, said hydraulic pump including a pump shaft which is disposed perpendicular to said first and second axles; a hydraulic motor disposed within said axle housing, said hydraulic motor including a hollow motor shaft which is freely fitted on an outer periphery of one of said first and second axles; a motor gear fixed to said hollow motor shaft adjacent said differential gear unit; a speed reduction transmission for drivingly connecting said motor gear and said differential gear unit; said speed reduction transmission and said differential gear unit being disposed within one of said first and second axle casings; and said hydraulic pump and said hydraulic motor being disposed within an other of said first and second axle casings.