Motor vehicles – Bodies
Patent
1975-03-03
1976-11-23
Wood, Jr., M. H.
Motor vehicles
Bodies
74606R, 180 2411, 180 75, B60B 3700
Patent
active
039931552
ABSTRACT:
This invention relates to a double reduction tandem axle driving unit comprising a housing with a plurality of walls and a flange to secure the housing to a drive axle's housing. The drive shaft is journalled in said housing and a bevel pinion is disposed on said drive shaft. A cross-shaft is journalled in the front and back walls of said housing at generally right angles to said drive shaft. A bevel gear is on said cross-shaft, and meshes with said bevel pinion of said drive shaft. A spur pinion is on said cross-shaft near said bevel gear and a spur gear is secured to a carrier of a differential mechanism for said drive axle. The spur gear meshes with said spur pinion and said flange is provided with an aperture for passing said bevel gear and said spur gear. A first bearing is disposed at the end of said cross-shaft where said bevel gear is located and a second bearing is disposed at the opposite end of said cross-shaft where said spur pinion is located. A partition inside said housing, passes between said drive shaft and said cross-shaft from said top wall to said flange, and said partition is provided with an aperture for permitting engagement of said bevel pinion with said bevel gear. The partition serves as the support for said first bearing. A support for said second bearing is in one of said side walls of said housing; whereby with such construction rigidity of the unit's housing is increased and assembly or disassembly of the double reduction unit is generally simplified, and whereby the unit's loading is diminished due to larger bevel gear sizes resulting in a generally longer service life for said unit.
Due to said construction, the rigidity of the housing is enhanced whereas the manufacture, assembly and disassembly double reduction unit are simplified. In addition, said construction permits an increase in the size of the meshing bevel gears.
REFERENCES:
patent: 1730900 (1929-10-01), Rockwell
patent: 1906613 (1933-05-01), Keese
patent: 2120594 (1938-06-01), Alden
patent: 2570191 (1951-10-01), Beckwith
patent: 2731855 (1956-01-01), Schmal
Siemens Terrance L.
Wood, Jr. M. H.
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