SU1303299A1 - Assembled toothed tool for finishing gears - Google Patents

Abstract

The invention relates to the field of mechanical engineering and can be used when machining gears. The aim of the invention is to improve the accuracy by ensuring the constancy of the total length of the contact lines. The gear tool consists of a body and a gear ring 2. An abrasive layer 3 is applied to the tooth of the ring gear 2, the active height of which monotonously decreases from one end to another in opposite directions on different sides of the tooth of the circle 2 from the full height of the tooth at one end to the value equal to the module of the instrument, the other. 3 il. FIG.

Description

t

The invention relates to mechanical engineering and can be used in the finishing of gear wheels.

The purpose of the invention is to improve the accuracy of the instrument by providing the greatest cyNMapHofi length of contact lines: 1.

Figure 1 shows the axial side of the tooth of the proposed tool; figure 2 - the right side of the tooth tool; on fig.Z tooth tool.

The prefabricated gear tool consists of the body 1 and the ring gear .2 with the abrasive layer 3 applied to it. The active height of the tooth profile hg varies along the tooth length of the tool, namely, it decreases monotonically from one end to the other in opposite directions on different sides of the crown tooth 2 from the full height of the tooth bd., To the value b. - equal to the tool module.

Reducing the active height of the teeth of the tool by reducing the abdominal layer zone allows reducing the change in the total length of the contact lines during engagement and reducing this change to zero. As a result, a reduction in the variation of 0.30992 is achieved.

n; their normal effort arises; its processing and, consequently, the reduction of cyclical surfaces.

g. The reduction in the active height of the teeth should not be less than the size of the module of the wheel being machined. Otherwise, the processing of the side surface of the teeth will be incomplete. With

10 reducing the active height of the teeth of the tool more than the modulus the total length of the contact lines will be non-permanent.

15 Forms of invention

A collection gear tool for finishing gears, consisting of a body and a gear wheel with an abrasive layer deposited on it, the active profile height of which varies along the tooth length of the tool, characterized in that The active height of the tooth profile is monotonously reduced, from one end to another in opposite directions on different sides of the tooth, from the full height of the tooth to a value equal to 30

NOI tool module.

 : h

WITH

IrJ .; /, Y "-V i:. ; Lou

"

h

“:,

Phi.

Editor A. Ogar

Compiled by A. Gadatelev Tehred M. Khodanych

Order 1250/13 Circulation 976 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., d, 4/5

Production and printing company, Uzhgorod, st. Project, 4

Proofreader M. Demchik

Claims (1)

Claim A prefabricated gear tool for finishing machining gears, consisting of a housing and a gear ring with an abrasive layer deposited on it, the active profile height of which varies along the length of the tool tooth, characterized in that, in order to improve accuracy, the active profile height of the tooth is monotonically decreasing from one end to another in opposite directions on different sides of the tooth from the full height of the tooth to a value equal to the modulus of the tool.