SU1442761A1 - Mechanism for converting rotary motion into translational one - Google Patents

Abstract

The invention relates to mechanical engineering and can be used in drives of automatic control and regulation devices. The circuit of the invention is an increase in traction ability by ensuring the formation of an elastic band profile on a pulley. When the pulley 5 is rotated, the elastic sheet 3 is clamped between it and the pressure roller 9, takes the shape of a parabola and transmits the force to the slider 8, which moves along a straight guide 7. The force from the pulley 5 to the elastic belt 3 is transmitted due to frictional contact between the latter and the surface annular grooves, as well as with the help of protrusions interacting with the perforation of the elastic tape 3. 4 Il. with

Description

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ABOUT

The invention relates to mechanical engineering and can be used in the drives of automatic control and regulation devices.

The purpose of the invention is to increase traction ability by ensuring the formation of an elastic tape profile on a pulley.

FIG. 1 shows a mechanism for converting rotary motion into a translational S. The general view in FIG. 2 shows section A-A in FIG. one; n FIG. 3 shows a section BB in FIG. 1 | in fig. 4 shows a section B-B in FIG. 3

The mechanism for converting the rotational movement into a translational movement comprises a base 1, a drum 2 placed on it, a resilient tape 3 with perforation 4 fixed on the last one end and a pulley 5 with protrusions 6 for interacting with perforation 4.

, . On base 1, there is also installed a straight guide 7 and a slider 8 placed on it to which the other end of the elastic band 3 is attached, having an arcuate profile in cross section. The mechanism is provided with pinch rollers 9 for engagement with elastic tape 3 in place of contact with pulley 5, at the top of which an annular groove 10 with a profile is made. corresponding to the profile of the end of the elastic tape 3 attached to the slider and both of these profiles have the shape of a parabola, and the protrusions 6 are placed at the bottom of the ring groove 10,

The mechanism works as follows with

When the pulley 5 is rotated clockwise, the elastic belt 3 winds up with the drum 2, loops between the pulley 5 and the pressure rollers 9, and in the cross section becomes

parabolas. The force from pshiva 5 due to the frictional contact of the elastic tape 3 with the walls of the annular groove 10

and the engagement of the protrusions 6 with perforation 4 is transmitted by the elastic band 3 and the slider 8 therefrom, which is displaced along the rectilinear guide 7 to the right. By rotating the pulley 5 in reverse

the direction of the slider 8 is shifted to the left. In this case, the elastic belt 3, the coming out of contact with the pressure rollers 9, straightens J winding on the drum 2. The slider 8 can also be used as a driving element. In this case, the pulley 5 rotates in one direction or another, depending on the direction of displacement of the slide 8,

Claims (1)

Invention Formula A mechanism for converting rotational motion into translational, containing a base, a drum placed on it, an elastic tape with perforation fixed on the last one end, a pulley with protrusions on the surface for interacting with last, a straight guide, a slider mounted on it, to which another end of an elastic tape is attached, having an arched profile in cross section, in order to increase traction ability by ensuring the formation of an elastic tape on a pulley, the mechanism is equipped with a clamping a roller for interacting with an elastic tape at the point of its contact with a pulley, on the surface of which an annular groove is made with a profile corresponding to the profile of the end of the elastic tape attached to the slide, and both of these professionals have the shape of a parabola, and the projections are arranged on the bottom of the annular groove. YES 7 9i, d.2 In the 10th 9GL