US 5,697,862 A · Two-speed press drive

Abstract

A two-speed press drive is manufactured as a complete assembly eliminating the requirement that the drive be assembled at the location of the press. The two-speed drive includes a stationary quill, an output shaft and a planetary gear set. The planetary gear set includes a first sun gear connected to the stationary quill, a second sun gear rotatably connected to the stationary quill, a planetary gear carrier rotatably connected to the stationary quill and three compound planetary gears rotatably connected to the carrier and meshing with both the first and second sun gears. The input to the two-speed drive is through the planetary gear carrier. A high speed clutch connects the carrier directly to the output shaft for high speed operation. A low speed clutch connects the second sun gear to the output shaft for high speed operation. A housing in conjunction with the carrier define a sealed cavity within which the components of the drive operate.

Claims13

Dependent claims

A two-speed drive comprising:

a stationary quill;
an input member for transmitting rotation to said two-speed drive, said input member being rotatably disposed with respect to said quill;
an output member for transmitting rotation from said two-speed drive, said output member being rotatably disposed with respect to said quill;
a brake for selectively locking said output member to said stationary quill;
a planetary gear set disposed between said input member and said output member, said planetary gear set comprising:
a first sun gear fixedly secured to said quill;
a second sun gear rotatably disposed with respect to said quill;
and
a plurality of compound planet gears rotatably disposed with respect to said input member, each of said plurality of compound planet gears meshingly engaging said first and second sun gears.

6 more elements

Dependencies are inferred from the claim text.

Two-speed press drive

Life of this patent

Two-speed press drive

Life of this patent

Abstract

Claims13