SU815361A1 - Reversive mechanism - Google Patents

Description

one

The invention relates to mechanical engineering, and can be used in the automation of production processes for dosing, sorting, transferring bulk materials and liquid media, as well as in other branches of the national economy, where mechanisms can be used that transform the continuous rotational movement of the driver. link in the reverse movement of the slave link.

A reversing mechanism is known, which contains a leading link and a kinematically associated slave link iTj. The leading link is made in the form of a gear wheel with a trunnion, mounted on a freely swinging yoke and is brought into continuous rotation in one direction by means of a chain transmission. Slave zyeno made in the form of a frame with bobbins and an endless groove in which slides. Gears.

However, the angle of rotation of the slave link is not adjustable and less than 360 it is not possible to change the inter-center distance between the master and the slave link. When reversing motion, the gear wheel should move along the slot

fixed scenes on one of the radii of the curved groove, which complicates the drive of the drive link and the design of the mechanism as a whole. The scope of the reversing device is limited to the design features, which limits the functionality of the mechanism.

The purpose of the invention is to simplify the design.

five

This goal is achieved by the fact that in the reverse mechanism the link is made in the form of a wheel mounted on the axle, the drive in the form of a crank with two diametrically located wheels,

Claims (1)

and the kinematic link is a flexible electrical wheel covering the wheel, spring-loaded in the direction of its movement. FIG. 1 is a reverse mechanism, general view | in fig. 2 is a view A of FIG. 1. The reversing mechanism contains a crank link 1 with two diametrically located elbows 2 and 3 and a slave link connected kinematically with the driving link, made in the drive of wheel 4 mounted on axle 5. elements, spring-loaded with the help of an elastic element 7, for example a tension spring, in the direction of movement of the flexible element 6 having branches 8 and 9. The mechanism works as follows. The drive link in the form of crank 1 is rotated in a predetermined one-sided direction from the drive (not shown). The direction of rotation is chosen constructively clockwise or counterclockwise. Thanks to whom the rotation of the knee. 2 and 3 I describe a circular motion and lead behind a flexible element 6. At the same time, branches 8 and 9 of flexible element 6 perform; reciprocating movement in opposite directions by reversing the rotation of the wheel 4. The reversal cycle takes place on the 18 o of the crank angle of rotation 1. The design features of the mechanism allow to expand the area of application of reversing mechanisms, the ability to control the range of the reverse. Claims of the invention A reversing mechanism comprising a lead link and a kinematically connected follower link, of which is a shch. and about that, for the purpose of design, the slave link is made in the form mounted on the axis of the wheel, the leading -. in the form of a crank with two diametrically arranged knees, U kinematic coupling is a flexible element enveloping the wheel, which is spring-loaded in the direction of its movement. The source of information taken into account during the examination. 1. Kozhevnikov, S. N. and others. Mechanisms. M., Mashchinostroenie, 1976, p. 577, rice, 9.88 (prototype). /  about ha CM