Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position
Patent
1987-12-28
1989-12-19
Diehl, Dwight G.
Machine element or mechanism
Rotary member or shaft indexing, e.g., tool or work turret
Preselected indexed position
74413, 74421A, F16H 128
Patent
active
048874892
ABSTRACT:
A bowl-mill gearing (14) which consists of an epicyclic gear (14b) and an intermediate gear (14a) composed of spur wheels (18, 20, 22, 24) with parallel axes. The driving shaft (26) of the intermediate gear (14a) is disposed parallel to the driven shaft (52) and with spacing from the mill axis (42). The driven wheel (24) of the intermediate gear (14a) means with a small intermediate wheel (22) which is mounted for rotation outside the annular gear case (20) of the bowl-mill gearing (14) and is disposed so that it projects through a cut-out (80) in the gear case (30) into the interior of the gear case. The dimensions of the intermediate wheel (22) and of the driven wheel (24) are selected so that the wall (34) of the annular gear case only has to be provided with a cut-out (80) which is less than an eighth of the circumference of the gear case as a result of which there is negligible weakening of the gear case. The bow-mill gearing combines all the advantages of epicyclic and parallel-shaft gears while eliminating a bevel gear as an intermediate gear.
REFERENCES:
patent: 2714824 (1955-08-01), Schmitter
patent: 2813432 (1957-11-01), Hoskins
patent: 4471671 (1984-09-01), Sigg
patent: 4593575 (1986-06-01), Reid
patent: 4736829 (1988-04-01), Noel
Dudley, D. W., "Gear Design Trends", in Handbook of Practical Gear Design (New York, McGraw-Hill, 1984), pp. 1.24-1.25.
Lynwander, P., "Types of Gear Drives: Arrangements, Tooth Forms", in Gear Drive Systems (New York, Marce Dekker, 1983), pp. 1-11.
Diehl Dwight G.
MAAG Gear-Wheel & Machine, Co. Ltd.
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