SU1404719A1 - Gearwheel - Google Patents

Abstract

The invention relates to mechanical engineering, to cylindrical gears, switched axial movement of the wheels. The goal — an increase in the reliability of the gear — is achieved by smoothly changing the compliance of the teeth on the teeth. adjacent to the ends. The elastic strip 3 is fixed on the end 2 of the ring gear 1 and corresponds to the profile of the teeth of the ring 1. On each tooth on the end 2 of the ring 1 there are radial grooves 4 filled with the material of the plate 3. In cross section each groove 4 may have the shape of an equilateral trapezium with a smaller the base at the end 2 of the crown 1. When shifting gears, the shock loads.-: the ki are damped by the overlay 3. Thanks to the groove 4, the compliance of the crown teeth 1 along the 0-0 axis from right to left in areas adjacent to the end 2 changes smoothly from the minimum (outside groove zones 4) to a maximum (at the outer end of the lining 3). A smooth change in compliance contributes to the equalization of the load on the teeth of the crown 1, both during switching and during operation. Trapezoidal sectional shape. the groove 4 increases the reliability of fastening the tab 3. 1 cp f-ly, 1 ill. O) with

Description

four

with

The invention relates to mechanical engineering and can be used in spur gears that are switched by axial movement of the wheel.

The purpose of the invention is to increase the reliability of the gear.

A positive effect is achieved due to a smooth change in compliance in the areas of the teeth adjacent to the end of the wheel.

The drawing shows a section of a cylindrical gear wheel - section of the tooth of the ring gear with a dividing surface.

The gear wheel comprises a gear rim 1 and a corresponding profile of teeth fixed on its end face 2 fixed on its end face 2, for example, from polymer. At the end 2 of the crown 1, the radial grooves 4 are filled in with each tooth and filled with the material of the lining 3. In the cross section each groove 4 can be made as an equilateral trapezium with a smaller base, at the end 2 of the crown 1.

When shifting gears, shock loads on the wheel are damped by the grip 3, protecting the end 2 of the crown 1 from wear.

On the lateral surfaces of the teeth of the crown 1 load, it is uneven, increasing closer to the end 2, which is caused by misalignment in the gearing of the wheel with its response (not shown). Distortions arise

from inaccuracies in manufacturing and assembly from deformations of transmission elements under load. Due to the presence of a groove 4 filled with an elastically flexible lining 3, the compliance of the teeth of the crown 1 along the 0-0 axis of the wheel from right to left in the areas adjacent to the end 2 does not change spasmodically, but smoothly - from the minimum (outside the groove 4) to maximum (on the outer end of the lining 3). A smooth change in compliance contributes to the equalization of the load on the teeth of the ring 1, both during switching and during operation, which increases the reliability of the design.

The cross section of the groove 4 in the form of an equilateral trapezoid provides reliable fastening of the lining 3 on the end 2 of the crown 1

Claims (2)

1. A gear wheel containing a gear rim and an appropriate profile of the teeth on the end of it is resilient to the pad, characterized in that, in order to improve reliability and design, the radial groove on each end of the ring and filled with the pad material. 2. A wheel pop. 1, characterized by the fact that in cross section each groove is made in the form of an equilateral trapezium with a smaller base at the end of the rim.