SU912982A1

SU912982A1 - Globoid transmission

Info

Publication number: SU912982A1
Application number: SU792890557A
Authority: SU
Inventors: Иван Яковлевич Баландин
Original assignee: Николаевский Ордена Трудового Красного Знамени Кораблестроительный Институт
Priority date: 1979-12-14
Filing date: 1979-12-14
Publication date: 1982-03-15

Description

(54) ГЛОБОИДНАЯ ПЕРЕДАЧА(54) GLOBOUS TRANSMISSION

1one

Изобретение относитс к машиностроению может быть использовано в конструкци х Приводов машин и механизмов в качестве редуктора.The invention relates to mechanical engineering can be used in the construction of drives of machines and mechanisms as a gearbox.

Известна глобоидна передача, содержаща черв к, черв чное колесо, на ободе которого закреплены оси с роликами, параллельные боковьпиЕ поверхност м витков черв ка 1.The known globoid gear contains a worm gear, a worm gear, on the rim of which axles with rollers are fixed, parallel to the side of the turns of the worm 1.

Недостатком указанной передачи вл етс низка долговечность, так как каждый цилиндрический ролик при зацеплении контактирует с витком черв ка по линии образующей цилиндрической поверхности ролика, при вращении черв ка з сазанна лини перемещаетс по боковой поверхности витков черв ка, описыва его рабочую поверхность. Скорости точек черв ка, лежащих на линии контакта черв ка с роликом, различны, чем обуславливаетс скольжение и повышенный износ контактирующих поверхностей.The disadvantage of this transfer is low durability, as each cylindrical roller engages with the screw turn along the line forming the cylindrical surface of the roller, while rotating the screw, the ascending line moves along the side surface of the turns of the screw, describing its working surface. The speeds of the screw points lying on the line of contact of the screw with the roller are different, which causes sliding and increased wear of the contacting surfaces.

Цель изобретени - повышение долговечности передачи путем образовани нескольких контактных линий на боковой поверхности витков черв ка.The purpose of the invention is to increase the durability of the transmission by forming several contact lines on the side surface of the turns of the screw.

Указанна цель достигаетс тем, что часть последовательно расположенных роликов смещена по радиусу относительно другой или других частей по высоте на величину, равн)то полуоси ширины п тна контакта.This goal is achieved by the fact that a part of consecutive rollers is offset radially relative to the other or other parts in height by an amount equal to that of the half-width of the contact spot width.

На фиг. 1 изображена глобоидна передача, общий вид; на фиг. 2 - разрез А-А на фиг. 1; на фиг. 3 - узел 1 на фиг. 1.FIG. 1 shows the globoid transmission, general view; in fig. 2 shows section A-A in FIG. one; in fig. 3 — node 1 in FIG. one.

Глобоидна передача содержит черв к 1, колесо 2 с укрепленными на нем ос ми 3, на Globoid gear contains worms to 1, wheel 2 with axles fixed on it, 3

to концах которых установлены с возможностью вращени ролики 4 со сферическими буртиками 5. Дл уменьшени трени ролики установлены , например, в игольчатых подпишниках 6, закрепленных на ос х 3. Расположение сфе15 рических буртиков 5 роликов 4 смещено по высоте на величину, равную полуоси ширины п тна контакта, это может быть обеспечено либо выполнением осей 3 роликов 4 с различными длинами, либо установкой i осей 3 To the ends of which the rollers 4 with spherical shoulders 5 are mounted for rotation. To reduce the training, the rollers are installed, for example, in needle-pin holders 6 fixed on the axes 3. The location of the spherical shoulders 5 of the rollers 4 is offset in height by an amount equal to the half-width contact, this can be achieved either by performing the axles of 3 rollers 4 with different lengths, or by installing i axes 3

30 с одинаковы ии длинами, но с различным вылетом .30 with the same and lengths, but with a different departure.

Claims

FIG. 1 wheel 2 is represented, for example, with five differently spaced, groups with the same distance spherical eypiTmcoB S in each group, forming, respectively, five contact lines on the lateral surface of the turns of the screw 1. Globoid transmission works as follows: When the screw is rotating the rollers 4 of each of the rpyim spherical shoulders 5 are continuously in contact with the lateral surface of the turns of the screw for several pt m of the contact, at the same time the rotational movement of the wheel 2 with an angular speed equal to the gear ratio corresponding to the number of rollers 4 on the wheel

2. For one turn of the screw 1, wheel 2 turns an angle equal to the angular transmission pitch. In the goboid gear, in work, the part of the side surface of the screw turns alternately alternately alternated at its height, as a result of which their wear is reduced and the durability of fused gear increases. Claims Globoid transfer comprising a worm to, a worm gear, on the rim of which axles with rollers are fixed parallel to the side surfaces of the turns of the screw, characterized in that in order to increase the durability of the transmission by forming several contact lines on the lateral surface of the turns of the screw ka, a part of consecutive rollers is shifted along the radius relative to the other or other parts in height by an amount equal to the semi-axis of the contact patch. Sources of information taken into account in the examination 1, US Patent No. 3597990, cl. 74-415, 1972 (prototype).

fm.2