SU1534230A1 - Flexible gear of wave gearing - Google Patents

Abstract

The invention relates to general engineering and is intended for use in wavelength drives. The aim of the invention is to increase durability by creating a two-way clamping of the pipe and the flange of the flexible wheel to each other. This is achieved by the fact that the possible slippage of the flange 5 relative to the pipe 3 from the transmitted torque is eliminated by the presence of annular elements 7 and 8 interconnected, which press the centering surfaces 4 and 6 of the flange 5 and the pipe 3 to each other. 3 Il.

Description

use in wave drive drives.

The purpose of the invention is to increase the durability of the flexible wheel by creating a two-way clamping of its pipe and flange to each other.

FIG. 1 shows a flexible wave transmission wheel with an internal flange; in fig. 2 - the same, with an external flange; in fig. 3 shows the node I in FIG. one.

FIG. 1 and 2 show a flexible wheel comprising a wave transmission, which contains a generator 1, a rigid wheel 2 and a flexible wheel, made in the form of a thin-walled tube 3, at one of the ends of which there is a gear rim. At the free end of the tube 3 there is a centering surface A, which is made in the form of a flange. The flexible wheel also includes a flange 5, having a centering surface 6, in contact with the corresponding surface k, and a mechanism for pressing surfaces k and 6 to each other. The clamping mechanism is made in the form of two annular elements - outer 7 and inner 8, which are interconnected by clamp 9. Between the annular elements 7 and 8 are located the centering surfaces k and 6 of the thin-walled pipe 3 and the flange 5. At the same time, the middle surface of the surface is 6 and 6 addiction

2 Р-Т cosf

Р- t

de d

wed - dH + deM

accordingly, the average is 2 single, external and internal diameters of the centrifugal surfaces

(Fig. 3);

, 5 ... 2.5 - safety factor

clutch; T - transmitted torque

moment;

Y is the flanging angle of the centering surfaces; P - clamping force of the ring elements; t - coefficient of friction na

pipe-flange ry.

The flexible wheel works as follows.

55

five

0 5

0

five

0

2 wheels, because of the different number of teeth of the hard 2 and flexible wheels, one of these wheels rotates (with the other stopped) in the direction opposite to the rotation of the generator 1. At the same time, the flange 5 can slip relative to the pipe 3 from the torque transmitted by the flexible wheel eliminates the two-sided pressing of the centering surfaces C and 6 against each other by interposed ring elements 7 and 8.

Two-sided pressing of the centering surfaces of the flange and the tube of the flexible wheel to each other eliminates the occurrence and spread of fatigue cracks in the elements of the flexible wheel, which increases its durability.

Claims (1)

Invention Formula A flexible wave transfer wheel containing a thin-walled tube, a toothed crown at one of its ends and a centering surface at the free end, a flange having a centering surface in contact with the centering surface of the pipe, and a mechanism for clamping the centering surfaces to one another, characterized in that the purpose of increasing the durability of the flexible clamping of the pipe and flange to each other, the clamping mechanism is made in the form of two collapsed ring elements, centering surfaces are located between the latter, and their middle diameter defined dependence CP P t s where d Cf dH + d int , 5 ... 2.5 5 respectively the median, outer and inner diameters of the centering surfaces; clutch safety factor; transmitted torque; flanging angle of centering surfaces; the clamping force of the ring elements; coefficient of friction of the pipe-flange pair. Schi I