SU1421911A2 - Worm gearing with intermediate bodies - Google Patents

Abstract

The invention relates to machine building and can be used in gearboxes with high loads. The invention is additional to the author. St. No. 1208375, the purpose of the invention is to simplify the design by accomplishing the fixing and orientation elements of the pads 4 in the form of grooves 7 on the pads at the base of the spherical protrusion 6 and the disk 5 placed in the grooves 7 and fixed on the wheel 2. the worm to 1 interacts with the flat wheel 2 by means of pads 4 with side surfaces, congruent screw side surfaces of the worm coil 1. The pads 4 have a spherical protrusion 6. at the base of which a groove 7 is made, in which Azores mounted disc 5. The grooves 7 and the disk 5 to limit the rotation angle of pads 4 on the wheel and prevent loss pad 4. 3 yl. ;

Description

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YU

with

The invention relates to mechanical engineering, can be used in gearboxes with high loads, and is the advanced ujeHCTBOBAHHeM invention of the author. St. .NO 1208375.

The purpose of the invention is to tweak the structure with a tool for making fixation elements and pre-orientation of the pads in the form of tsaz on the pads at the base of the spherical protrusion and a disk placed in tsaz on the wheel.

FIG. 1 shows a red heart with a transient body, general view; in fig. 2 is a section A-A in FIG. one; in fig. 3 - the same, option.

Worm gear with intermediate bodies contains a worm to 1, an il wheel and 2 fixed on shaft 3. intermediate bodies of pad 4 and flat disk 5 fixed on wheel 2. On each block 4 at the base of spherical lining 6 there are pin peen 7, in which with a gap S. placed, the disk 5 mounted on the wheel 2. The groove 7 can be impressed both figured forms (Fig. 2) and segment (Fig. 3).

When the worm gear operates, the disk 5 interacts with the groove 7 of the pads 4, which prevents the last 2 of the spherical depressions of the wheel 2 from falling out, in which the spherical projections 6 of the pads 4 are installed, which are out of contact with the worm 1.

L- / 5

five

At that.m, the pre-orientation of the pads 4 is simultaneously provided and the angle of rotation of the pads 4 on the wheel 2 is limited. The depth of the groove 7 must be somewhat greater than the diameter of the disk by 5 (Fig. 2 and 3) and is calculated by the formula

5 g. - Gd g coS (tp + agssos-J - --- i -).

2. v Гс where сГ is the radial clearance;

- de. Wheel radius; outer radius of the disk;

the radius of the spherical protrusion; tf - required angular displacement of the pad relative to the wheel

(If 20 - 25 °).

The diameter of the disc is 5. Smaller than the pitch diameter of the wheel 2 by 0.4-0.7 diameters of the spherical recess.

e 25

20

thirty

Claims (1)

Invention Formula Cherv chny transfer with intermediate bodies on author. St. No. 1208375, characterized in that, in order to simplify the construction, the fixing elements and pre-orientation of the pads relative to the wheel are made in the form of grooves on the pads at the bases of spherical protrusions and mounted on the wheel, installed with a gap in the grooves, of a disk whose spring diameter is MeHbnje the pitch circumference of the wheel passing through the centers of the spherical recesses of 0.4-0.7 times the diameter of the spherical recess. Aa (.2 9g