SU1295110A1 - Gearing - Google Patents

Abstract

The invention relates to mechanical engineering and can be used in gears with a reduced level of vibrations and noise. The aim of the invention is to expand the kinematic transmission possibilities by using engaging wheels of different diameters consisting of a crown, hub and connecting elements. The positive effect is achieved due to the choice of geometrical ratios of the same elements of these wheels, ensuring the equalization of the conditions of their loading in the mesh, regardless of the diameter of the wheels. The wheels consist of rims 1 and 2, hubs 3 and 4, and elastic connecting elements 5 and 6. Vns 1 and 2 have numbers of teeth, respectively Z and Z, and thickness (in the radial direction) h and hj with the same width. Elements 5 and 6 of the same stiffness and their number respectively

Description

12951

n, and nj. To ensure equality of periods of change of radial and circumferential compliance of rims 1 and 2, elements 5 and 6 are placed with the same circumferential pitch, which is provided by the ratio of angular steps f г, - (Z yz). equal to h, hifn / nHZ / Z, to ensure opposite

one

The invention relates to mechanical engineering and can be used in gears with reduced levels of vibration and noise.

The purpose of the invention is to expand the ki nematic transmission possibilities by using wheels of different diameters consisting of a Vend, a hub and connecting elements.

The positive effect is achieved due to the choice of the geometrical corresponding elements of these wheels, ensuring the equalization of the conditions of their loading in the gearing, regardless of the difference in wheel diameters i

The drawing shows a gear transmission.

The transmission contains two hooks of just-toothed gears of different diameters, which consist of Vendas 1 and 2, hubs 3 and 4, and elastic connecting elements 5 and 6, the joint 1on (their respective rims from step 1 and 1. The rims 1 and 2 have numbers teeth Z, and Zj, respectively, and thickness h and hg, in the radial direction with the same width in the axial direction. Numbers of elastic connecting elements 5 and 6, respectively, n, and D. The same stiffness of elements 5 and 6 are radial and circumferential compliance of rims 1 and 2 vary within sectors limited by angles H, and, Lp ensure the equality of periods of compliance of the crowns 1 and 2, elements 5 and 6 are placed with the same

0

the sign of ampshitud, elements 5 are shifted in the circumferential direction relative to elements 6 by half of the circumferential pitch. When the transmission is operated under the pressure of forces in the deposition, the Venda shifts one relative to the other. In this case, the average values and amplitudes of oscillations of displacements are equal and opposite in phase. The total offset remains constant, which increases smooth operation. 1 il.

circumferential step, which is provided by the ratio of angular steps

LP "-J-.

 2 Z,

In order to ensure equality of amplitudes in the compliance of crowns 1 and 2, the ratio of their thicknesses is chosen

Hh / sl 5jll2

h,

To ensure that the amplitudes in contrast to the sign of the amplitudes of the compliance of the rims 1 and 2 in the engagement zone are opposite, the elements 5 are shifted in circumference

the direction relative to the eleleyites b is half the pace.

When the transmission operates under the action of forces in engagement, the rims 1 and 2 are displaced relative to each other in the direction of the engagement line, while the mean values and amplitudes of the oscillations of displacements are equal and opposite in phase. The total displacement of the Vendas remains constant, which increases the smoothness of the work.

Claims (1)

Invention Formula A gear transmission containing two engaging gears with periodically varying radial compliance of the Vendians in the circumferential direction, periods of change of compliance are equal to each other, and the amplitudes are opposite in sign in the area of engagement, which is different in order to expand the kinematic possibilities account is31295110. four using wheels of different diameters; t - 2l pa, consisting of a crown, hub, and coupling elements, ratios where h and h are the wheel rim thickness; the thickness of the rims and the angular grooves of the section Z — the number of teeth of the wheel of the connecting elements, 5, e the number of connecting, elements in each of wheels;    the angular steps of placing the connecting elements in the wheels. jsL (Zi-) 2. il A o H