SU832175A1

SU832175A1 - Mechanism for converting rotation to reciprocating motion

Info

Publication number: SU832175A1
Application number: SU792794495A
Authority: SU
Inventors: Виталий Афанасьевич Щипак; Николай Николаевич Карандашов; Эдуард Сергеевич Дружинин; Николай Григорьевич Васильев
Original assignee: Предприятие П/Я Р-6681
Priority date: 1979-07-11
Filing date: 1979-07-11
Publication date: 1981-05-23

Description

Изобретение относится к машиностроению и может быть использовано в различных устройствах, где необходимо преобразование вращательного движения в возвратно-поступательное,например для перемещения каретки в направляющих.The invention relates to mechanical engineering and can be used in various devices where it is necessary to convert rotational motion to reciprocating, for example, to move the carriage in the guides.

Наиболее близким к изобретению по технической сущности является механизм преобразования вращательного движения в возвратно-поступательное , содержащий червячное колесо, установленное на оси, жестко связанной с ползуном и два червяка, на осях которых установлены зубчатые колеса, взаимодействующие с третьим ведущим, колесом Г1].Closest to the invention in technical essence is a mechanism for converting rotational motion into reciprocating, containing a worm wheel mounted on an axis rigidly connected to a slider and two worms, on the axes of which gears are mounted, interacting with the third drive wheel G1].

Недостаток механизма - сложность конструкции, так как червяки выполнены с разным шагом нарезки, что может нарушить зацепление червячной пары.The disadvantage of the mechanism is the design complexity, since the worms are made with different cutting steps, which can disrupt the engagement of the worm pair.

Цель изобретения - упрощение конструкции.The purpose of the invention is to simplify the design.

Указанная цель достигается тем, что червяки выполнены с одинаковым шагом, а передаточное отношение зубчатых колес, установленных на осях червяков, выбрано из соотношения ⁵ где Z^ -числб зубьев зубчатого колёса, установленного на первомThis goal is achieved by the fact that the worms are made with the same step, and the gear ratio of the gears mounted on the axes of the worms is selected from a ratio of ⁵ where Z ^ is the number of gear teeth mounted on the first

ΙΦ .червяке;ΙΦ. Worm;

число зубьев зубчатого кодекса, установленного на втором червяке;the number of teeth of the gear code mounted on the second worm;

И число заходов червяка; U i - шаг червяка;And the number of visits of the worm; U i is the pitch of the worm;

Ь — линейное перемещение червячного колеса за один оборот .одного из зубчатых колес.B - linear movement of the worm wheel in one revolution. One of the gears.

На фиг. 1 изображен механизм прец Образования вращательного движения в возвратно-поступательное, общий вид; на фиг. 2 - разрез А-А на фиг. 1.In FIG. 1 shows the mechanism of formation of rotational motion in a reciprocating, general view; in FIG. 2 is a section AA in FIG. 1.

Механизм содержит червячное колесо 1, установленное на оси 2, жествThe mechanism contains a worm wheel 1 mounted on an axis 2,

832175 4 ко связанной с ползуном 3, два червяка 4 и 5, на осях которых установлены зубчатые колеса 6 и 7, взаимодействующие с ведущим колесом 8. Ползун 3 может перемещаться в направляющих 9 и 10. Ведущее колесо 8 закреплено на оси электродвигателя 11. Червяки 4 и 5 выполнены с одинако-832175 4 connected to the slider 3, two worms 4 and 5, on the axes of which gears 6 and 7 are installed, interacting with the drive wheel 8. The slide 3 can move in the guides 9 and 10. The drive wheel 8 is fixed on the axis of the electric motor 11. Worms 4 and 5 are made with the same

Claims

(54) TRANSFORMATION MECHANISM OF ROTATING MOVEMENT IN RETURN AND TRANSMISSION 3 connected to the slider 3, two screws 4 and 5, on which axes gears 6 and 7 are mounted, mutually acting with the driving wheel 8. Slider 3 can move in guides 9 and 10. The driving wheel 8 is fixed on the axis of the electric motor I1, Screws 4 and 5 are made with the same pitch and installed in bearings 12. The mechanism works as follows. When the drive wheel 8, which is mounted on the axis of the electric motor 11, rotates, the gears 6 and 7, mounted on the respective screws 4 and 5, rotate in the same direction. Accordingly, the screws also rotate in the same direction. They are made in the same pitch and are installed in bearings 12. Due to the different number of teeth in gears 6 and 7, the screws rotate at different angular speeds. The velocity difference determines the linear movement of the slider, as the screws engage with the same worm gear, which is mounted on axis 2, which is rigidly connected to slider 3. The slider, together with the worm gear, progressively moves in the guides 9 and 10. The use in the mechanism of two Screws with the same pitch simplifies the design and manufacturing technology of the device. Claims The mechanism for converting rotary motion into reciprocating, containing a worm gear, mounted on an axis rigidly connected to a slider and two screws, on the axes of which are mounted gears that interact with a third drive wheel, characterized in that in order to simplify the construction, the screws are made with the same pitch, and the gear ratio of gear wheels mounted on the screws axis is selected from the ratio i-. III T I L. I 2. -i where is the number of teeth of a gear mounted on the first worm; 2., j is the number of teeth of a gear mounted on the second worm; the number of calls of the worm; worm pitch; linear movement of the worm gear for one revolution of one of the gears. Sources of information received during the examination at the examination 1. Jones F, D, and Horton X. L. Mechanisms of automatic action, M. / State Scientific and Technical Publishing House of Engineering Literature, 1961, p. 395-396 (prototype).