SU1627773A1

SU1627773A1 - Ball-spiral gearing

Info

Publication number: SU1627773A1
Application number: SU884455964A
Authority: SU
Inventors: Илья Аронович Фердман; Владимир Александрович Марченко; Владимир Всеволодович Тимченко; Александр Георгиевич Шишов; Михаил Борисович Шкапенюк
Original assignee: И.А.Фердман, В.А.Марченко, В.В.Тимченко, А.Г.Шишов и М.Б,Шкапе ню к
Priority date: 1988-07-06
Filing date: 1988-07-06
Publication date: 1991-02-15

Abstract

Изобретение относитс к машиностроению и может быть использовано в устройствах дл преобразовани вращательного движени в поступательное и наоборот. Целью изобретени вл етс повышение надежности. На гайках 2 и 3 выполнены радиусные фаски 6 и 1 1 , на которых установлены соответственно крышки 8 и проставочное кольцо 13, а также проточки Ю q внутренними расточками . Каждый канал возврата гаек образован осевым отверстием 9, сопр женными с ним пазом 5 и отверстием 15, внутренней поверхностью соответствующей крышки 8, выемкой на проста- вочном кольце 13 и соответствующим торцом втулки 14. При вращении винта 1шарики перекатываютс в резьбовых канавках винта 1 и, например, гайки 2наталкиваютс на крышку 8, направ- . л ютс в канал возврата, по которому возвращаютс в резьбовые канавки. 6 ил. еThe invention relates to mechanical engineering and can be used in devices for converting rotary motion into translational and vice versa. The aim of the invention is to increase reliability. On nuts 2 and 3, radius chamfers 6 and 1 1 are made, on which covers 8 and spacer ring 13 are installed, as well as grooves U q with internal bores. Each return channel of the nuts is formed by an axial hole 9, a groove 5 and a hole 15 mating with it, the inner surface of the corresponding cover 8, a notch on the primer ring 13 and the corresponding end of the sleeve 14. As the screw 1 rotates, the balls roll in the screw grooves of screw 1 and for example, the nuts 2 push against the cover 8, direction-. They enter the return duct, through which they return to the threaded grooves. 6 Il. e

Description

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Claims

Claim

A ball screw transmission containing a screw, two nuts interacting with it, rolling elements located in the screw and nut threaded grooves, a return channel having a section in the form of an axial hole made in the nut body along its length, and a spacer ring placed coaxially between the nuts with them, characterized in that, in order to increase reliability, radial chamfers are made on both ends of the axial holes of the nuts on the outer cylindrical surfaces of the latter, moreover, on the cylindrical surface of each of the nuts from the side facing one end to the other has a groove adjacent to the corresponding radial chamfer, from the surface of the latter tangentially to the threaded groove of the nut-hole, mating with the corresponding axial hole, the spacer ring is mounted on the grooves of the nuts and has recesses on the ends, the surface of each of which is equidistant to the corresponding radius chamfers On the nuts and is designed to interact with them, on the other ends of each of the nuts a groove is made tangentially to its threaded groove, mating with the corresponding axle m aperture, the transfer set is provided with side covers these ends, the inner surface of each of which are equidistant soot5

16: the corresponding radial chamfers of nuts and is designed to interact with the return channel installed in the race, the nuts are formed, mating with the end and the hole with them, and with a sleeve, a point, an axial hole with a groove from the surface of the radial chamfer, respectively, the inner surface of the corresponding cover, cavity a chamfer on the corresponding end face of the spacer ring and the corresponding end face of the sleeve.

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