Divided thrust apparatus
AssigneeThe Falk Corporation
InventorRonald A. Witt
Life of this patent
Estimating the term…
Abstract
A gear drive has two closely spaced parallel output shafts driven by a single input shaft. One gear train connects the input shaft to one of the output shafts which has a thrust bearing at one end to absorb thrust loads. A second gear train connects the input shaft to the second output shaft. The second output shaft mounts a double helical pinion which is in engagement with two double helical gears on a pair of spaced shafts. The spaced shafts are each mounted in thrust bearings to absorb the thrust on the second output shaft which is transmitted through the meshings double helical gearing to the pair of shafts. A linkage engages the ends of the pair of shafts to equalize the thrust load on each of the two shafts.
Claims12
Apparatus for accommodating thrust loads on a driven output shaft of a gear drive which includes a housing having support walls, comprising:
- first bearing means journaling the output shaft in support walls of said housing and accommodating limited axial movement of the output shaft;
- a double helical pinion on the output shaft;
- a pair of parallel gear shafts spaced from the output shaft and from each other, each of said gear shafts mounting a double helical gear meshing with said double helical pinion;
- second bearing means journaling each of the gear shafts in support walls of said housing and accommodating limited axial movement of said gear shafts;
- and
- a pair of thrust bearings each working against an end of a respective one of said gear shafts.
In a gear drive having a housing including support walls, a single input shaft and a pair of parallel, closely spaced output shafts, a first gear train drivingly connecting the input shaft to one end of said output shafts, a thrust bearing on an end of said one output shaft, and a second gear train drivingly connecting the input shaft to the second output shaft, the combination therewith of:
- first bearing means journaling the second output shaft in support walls of said housing and accommodating limited axial movement of the second output shaft;
- a double helical pinion on the second output shaft;
- a pair of parallel gear shafts spaced from both of the output shafts and from each other, each of said gear shafts mounting a double helical gear meshing with said double helical pinion;
- second bearing means journaling each of the gear shafts in support walls of said housing and accommodating limited axial movement of said gear shafts;
- and
- a pair of thrust bearings each working against an end of a respective one of said gear shafts.
Dependencies are inferred from the claim text.