SU1702030A2 - Mechanism for converting rotation into rotation-reciprocation - Google Patents

Abstract

The invention relates to mechanical engineering and can be used in various fields of industry, in particular in machines and mechanisms that require intermediate reversible rotation of actuators, for example for vibratory thread cutting, and is an improvement on the known auth mechanism. St. No. 767437. The purpose of the additional invention is to enhance the operational capabilities by obtaining an intermediate reverse rotation. This is achieved by those. that the known mechanism is equipped with an additional shaft 18, located in housing 1, with a worm wheel 19 fixed on it. reciprocal. 2 Il. yo

Description

The invention relates to mechanical engineering and can be used in various fields of industry, in particular in machines and mechanisms that require intermediate reversible rotation of actuators, for example for vibratory thread cutting, and is an improvement on the known auth mechanism. St. Ne 767437. I

The object of the additional invention is to expand the operational capabilities by obtaining an intermediate reversible rotation.

FIG. 1 shows the mechanism, a general view; in fig. 2 — centroids of elliptical gears in the dead center position of the reciprocating motion of the driven shaft.

The mechanism includes a housing 1. a driving shaft 2. on which a circular gear 3 and an elliptical gear 4, a driven shaft 5. on which are located a circular gear 6 interacting with the circular gear 3, and an elliptical gear 7 interacting with an elliptical gear 4. On the driven shaft 5 is made of a spline 8 and threaded 9 sections.

In the circular gear wheel 6 there is a slotted fit hole 10, and in the elliptical gear 7 in the focus of the ellipse there is a threaded fit hole

11. In particular, it is made in the form of a rigidly mounted threaded sleeve.

12, The circular gear 6 and the elliptical gear 7 are located in radial VI

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but-resistant bearings 13, 14, 15, 16 and do not have axial movements.

At the output part of the driven shaft 5, a worm gear section 17 is made. And in case 1, an additional shaft 18c is mounted with a worm gear 19 rigidly mounted on it, interacting with a worm gear section 17. At the same time, the directions of the screw, worm gear and screw pair lines are reciprocal.

The mechanism works as follows.

When the drive shaft 2 rotates, the round gears 3 and b impart uniform rotation to the driven waggon 5, and the elliptical gears 4 and 7 communicate the sleeve 12 with the threaded hole 11 uneven rotation with acceleration and deceleration.

The wheels of the driven shaft 2 are located in radially-resistant bearings 13-16, which exclude axial movement, therefore axial movement from the interaction of the screw pair 9-11 receives the driven shaft 5 in the form of its reciprocating motion.

When turning the wheel 4 at an angle of 360 ° - 2a (Fig. 2) against the acous arrow from the engagement point A to the engagement point B, corresponding to the dead points of the reciprocating movement of the shaft 5, the slowed down i turn of the wheel 7 through the angle 1a corresponds to return-act; l; th movement - working axial stroke / ala o.

With the subsequent nnsopo.e wheel 4 from the point zac-agl b g, o t. . the gearing A at the angle l t OEopci of the wheel at an angle of 360 ° 2a corresponds to a short cycle of reciprocating motion — accelerated reverse motion of the shaft 5.

The worm section transfers to the worm wheel 19 simultaneously uniform rotation and uneven reciprocating motion.

The rotation is transmitted via a worm gear. .

Reciprocating motion

It is transmitted through a rack and pinion in the form of an additional rotation of the worm gear 19 to the side while the shaft is running while beating the reverse side while

during the shaft.

When the speed of the additional rotation in the opposite direction exceeds the uniform speed of rotation of the worm gear 19 by the worm gear, the worm gear

the wheel 19 with the shaft 18 receive an intermediate reverse rotation.

Claims (1)

Claims of Invention Mechanism for converting rotary motion into rotation-reciprocating motion by aut. St. No. 767437, characterized in that, in order to expand operational capabilities, it is provided with a second driven shaft mounted in the housing and secured on the indicated shaft, a worm gear, on the end portion of the first driven shaft, there is a worm-cut section, kinematically connected with a worm gear, and the direction of the screw lines the threaded section and the area with the screw-cutting of the first driven shaft are selected reciprocally. 360 - 2 Fm.2 7