| 摘要 |
An axle driving apparatus for being mounted on the body frame of a vehicle and for independently rotating drive wheel members. The axle driving apparatus includes a first axle driving unit ( 18 L) leaving a housing ( 40 ) and a single axle ( 20 L), the single axle ( 20 L) defining a proximal end portion rotatably mounted in the housing ( 40 ) and a distal end portion extending outwardly from a first side of the housing ( 40 ). An enlarged region is defined by the housing ( 40 ), with the enlarged region extending substantially perpendicular to the longitudinal axis of the single axle ( 20 L). A hydraulic stepless speed change assembly ( 22 ) is disposed within the enlarged region. The speed change assembly ( 22 ) includes a hydraulic pump ( 52 ) having an input shaft ( 21 ) projecting from the enlarged region and includes a hydraulic motor ( 55 ) including an output shaft ( 74 ) drivingly connected to the single axle ( 20 L). The first axle driving unit ( 18 L) is used in conjunction with a second axle driving unit ( 18 R) which is adjacently disposed to the first axle driving unit ( 18 L) on the body frame of the vehicle and which is of substantially similar construction. However, the second axle driving unit ( 18 R) features a single axle ( 20 R) which extends outwardly from a second, opposite side of the housing ( 40 ) such that the axles ( 20 L, 20 R) are oppositely disposed.
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