Axle driving apparatus
AssigneeKanzaki Kokyukoki Mfg. Co., Ltd.
InventorHideaki Okada
Life of this patent
Estimating the term…
Abstract
An axle driving apparatus which laterally divides a transmission casing into two, a hydraulic pump vertically disposing a pump shaft and a hydraulic motor horizontally disposing a motor shaft are fixed in one transmission casing, the hydraulic pump and hydraulic motor are tight enclosed within the transmission casing in the state of joining both the transmission casing, an oil passage connecting the hydraulic pump and hydraulic motor is open at the bottom surface of the transmission casing, and an oil passage plate provided with connecting oil passages, a short-circuit valve, check valves and oil filter, is attached to the portion of the opening.
Claims4
An axle driving apparatus characterized in that:
- a transmission casing laterally divided so that left and right axles are journalled at left and right transmission casings respectively;
- a hydraulic pump driven by an engine and a hydraulic motor subjected to oil pressure from said hydraulic pump to be driven thereby are enclosed in said transmission casing;
- a pump mounting surface for said hydraulic pump is formed on the inner surface of the bottom of one of said divided transmission casings, a pump shaft of said hydraulic pump being vertically disposed;
- a motor mounting surface for a hydraulic motor is formed on the surface of a rising wall adjacent to said pump mounting surface and opposite to the other transmission casing, a motor shaft being disposed in parallel to said axles;
- a pair of crescent-shaped oil passages formed on said pump mounting surface are open at the rear surface of the bottom wall at said transmission casing;
- oil passages communicating with a pair of crescent-shaped oil passages formed on said motor mounting surface are open at the rear surface of the bottom wall;
- and
- an oil passage plate for connecting oil passages for said hydraulic pump and those for said hydraulic motor is bonded to the rear surface of the bottom wall of said transmission casing.
Dependencies are inferred from the claim text.