SU34879A1 - Gearbox - Google Patents

Description

The invention relates to gearboxes with a gear wheel located eccentrically relative to the drive shaft si. In the proposed reducer, rollers are used that are located on the crown of the gear wheel and move simultaneously at the I-in the circular slots of the fixed wheel and along the {{direct wheel} attached to the driven shaft.

In the schematic drawing of FIG. 1 is a front view of the gearbox, partly in section; and FIG. 2nd longitudinal section.

On the driver, an eccentric trick 3 is mounted, covered by a gear wheel with axles 5 inserted into its crown, on each of which rollers b and 7 are mounted, and rollers 7 move in circular slots 8 of fixed knee 9 fixed with one-piece supporting bolts /. The wheel 77 is tightly mounted on the end of the driven shaft 2; the thickness of the wheel 77 is somewhat greater than the thickness of the wheel V and the eccentric 5. Accordingly, the widths of wheel 4 in wheel 77 have a star-shaped depression 72 on the floor, along curves 76, the inner perimeter of which the rollers 6 of wheel 4 move, moving the wheel 77.

To reduce friction, a ball or roller bearing J3 is inserted between the centers 5 and the wheel 4, and the lower part of the free space

the gearbox is filled with oil, the leakage of which is prevented by the protrusion 74 and the groove 75 with stuffing stuffing in it.

When the shaft 7 is rotated and the eccentric 3 mounted on it tightly, 3 moves 4, which is free to sit on the eccentric; at the same time, the extreme rollers 7 are rolled along the circular slots 8 of the fixed wheel 9; inside the slots, complete circles are described; at the same time, four middle rollers 6 of the cattle inside the wheel 77 in the star-shaped depression, which are mounted on the common axis 5, then touch its inner perimeter, or not reach it, depending on the distance of the roller from the shaft axis 7, and these rollers alternately drive The wheel 77 is set in motion. Due to the planetary movement of the inner 1 "wheel 4, the rotation of the wheel 77 and the carrier shaft 18 of the shaft 2 is slow.

The subject invention.

A gearbox using a gear wheel eccentrically located relative to the axis of the drive shaft, characterized in that the rollers 7 and 67 located on the crown of the gear wheel 4 move simultaneously in the circular slots 8 of the fixed wheel 9 and along curves J6 of the wheel 77 mounted on the driven shaft .