Inscribed meshing planetary gear construction

Details Inscribed meshing planetary gear construction Inscribed meshing planetary gear construction

1992-08-11

1993-06-29

Wright, Dirk

Planetary gear transmission systems or components

Planet periphery surrounds axis of interacting gear

Circumferentially spaced connector pins

F16H 128

Patent

active

052229220

ABSTRACT:
An inscribed meshing speed increasing and reduction gear construction in which external teeth (for example, a1 and a2, b1 and b2, and c1 and c2) cut at the same position during processing are not simultaneously meshed with (outer pins 111 of) internal-tooth gear during operation in order to improve the accuracy after completion of assembling even if the gear is cut by a machine of similar processing accuracy. Thereby, (although it seems to be contrary to a conventional idea that said external teeth cut at the same position should be simultaneously meshed with the internal-tooth gear), the actual accuracy after completion of assembling can be improved. In this case, when both the number of teeth (24 in FIG. 1) of external-tooth gears 105a and 105b, and a difference in the number of teeth (4 in FIG. 4) between the external-tooth gear and (outer pins 111) internal-tooth gear, are set to integer times of the number (2 in FIG. 1) of the external-tooth gears, the external teeth of the external-tooth gears and various holes formed in the external-teeth can be all simultaneously (by one setting) cut, and remarkably improving the accuracy of the positional relationship between the external teeth and various holes.

REFERENCES:
patent: 1833648 (1931-11-01), Johnson
patent: 3145585 (1964-08-01), Brown
patent: 3160032 (1964-12-01), Black

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