SU1379544A1 - Flexible wheel - Google Patents

Abstract

The invention relates to mechanical engineering and can be used in wave gears. The purpose of the invention is to increase durability and increase kinematic accuracy by increasing torsional rigidity and axial compliance. During operation, the flexible wheel is self-adjusting, since ring gear 1 can generally move in axial and radial directions due to flexibility of elastic rings A in the axial direction for what the latter can be made in the form of a slotted spring. 1 hp f-ly, 5 ill.

Description

city (L

7

WITH

x

SP

four

FIG. 1A

eleven

The invention relates to mechanical engineering and can be used in wave gears.

The purpose of the invention is to increase durability and poke kinematic accuracy by increasing torsional rigidity and axial compliance,

FIG. 1 shows a flexible wheel; in fig. 2 is a section A-A in FIG. one; FIG. 3 is a section BB in FIG. one; Figs 4 and 5, flexible wheel, embodiments.

The flexible wheel contains a ring gear 1, a shell 2 connected to it, an output link in the form of a flange 3 and elastic rings 4 installed between the shell 2 and an output link, as well as with each other with a gap c. The elastic rings 4 are filled with rigid rings in the radial and pliable axial directions „The number of elastic rings 4 can be one, two (fig 1), three (fig. 4 and 5) and more. At the ends of each elastic ring 4 there are points of its connection to the shell 2, the flange 3 or to the other ring 4 in the form of bridges 5 and 6, which are evenly spaced around the circumference. The jumpers 5 (Figs. 2 and 3) of one end of the rings 4 are displaced in the circumferential direction relative to the jumpers 6 of the other end, so that together they are located evenly around the circumference but not under each other. The number of points of attachment of rings 4 at each end can be two, three (Fig. 2 and 3) and more. If the elastic rings 4 are larger than one, then they form a slotted spring with

Jumpers 5 and 6 can be connected

with elastic rings 4, with shell 2 and with flange 3 by welding or soldering. In addition, the jumpers 5 and 6 and the elastic ring 4 can be formed by milling the circumferential grooves

in a solid cylindrical thickened shell, which can be made either in one piece with the thin-walled shell 2 of the flexible wheel and the flange 3, or separately, followed by rigid connection to them, for example, by welding.

The flange 3 can be connected to the shaft 7 (Figo 1 and 4) or to the housing 8 (Fig. 5).

Elastic rings 4 can be located coaxially inside the shell 2 (Fig. 4) or can cover the shell 2 (Fig. 5).

During operation, the flexible wheel is self-adjusting, as the ring gear 1 as a whole can move in the axial and radial directions due to the flexibility of the elastic rings 4 in the axial direction. The axis of the ring gear 1 and the shell 2 connected to it makes angular displacements.

Claims (2)

1. A flexible wheel containing a toothed crown, a shell connected to it, an output link and an elastic ring connected in points evenly circumferentially alternating with the shell and the output link and installed between them. with a gap, characterized in that, in order to increase durability and increase kinematic accuracy by increasing torsional rigidity and axial compliance, the elastic ring is yielding in the axial direction, and the connection points are located on its ends. 2. A wheel as per 1, characterized in that the elastic ring is made in the form of a slotted spring. (rig.g. FIG. ff-5 fig.Z