RU1820098C - Rocker-and-slider mechanism - Google Patents

Abstract

The invention relates to mechanical engineering and can be used in rocker-slide mechanisms. The aim of the invention is to expand the kinematic capabilities by increasing the range of uniform oscillations of the input and output links. The lengths of the links of the mechanism L,,, L3, L, L5, be related by the ratios Lf 1, 1.2 1.1, L3 - 0.28 1.4 & 1.6, 1-5 0.87, 1.6 0.15, where-I /, is the length of the guide beam, Lg is the distance from the axis of rotation of the drive beam to the guide, L3 is the distance between the projections of the hinge axes rocker arm to the driven link, L4 is the length of the rocker arm, Ls is the length of the driven rocker arm, b6 is the distance between the axis of rotation of the rocker arm. When the master beam 5 is turned in both directions, the axis X is informed of the rotation of the driven beam 1, and its complex movement through the stone 7 and its hinge is converted into the reciprocating movement of the output link 3. 1 ill.

Description

The invention relates to mechanical engineering, in particular to articulated-lever transducers of oscillatory motion into a uniform reciprocating motion, and will find application, in particular, in various automatic machines

A mechanism is known which consists of a four-link articulated joint, the intermediate link is articulated to the connecting rod, the last articulated to the slider (output link).

A drawback of this mechanism is that with uniform rotation of the input link, the stroke of the output link is not uniform enough.

There is also known a mechanism consisting of a base with a linear Guide, an output link installed in it, mounted on the base of the driving and driven rocker arms, a stone with a slot articulated to the output link, a link that is articulated to the ends of the rocker arm and kinematically. with a stone.

The disadvantage of this mechanism is the small progress of the uniform movement of the output link.

The purpose of the invention is the expansion of the kinematic capabilities of the mechanism by increasing the range of uniform oscillations of the input and output links

To achieve the goal in the rocker-rocker mechanism containing a base with a straightforward

00

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with

a guide mounted in its output link, placed on the base of the driving and driven rocker, the axis of rotation of which are located on one side of the guide on a straight perpendicular axis, a stone pivotally connected to the output link, a link, pivotally connected to the ends rocker arm and kinematically with stone, link lengths. the mechanisms are related by the following relations

T, 4 1 1; B2 1.1; Le 0.28;

 L5 h e.o, i5, v

where L is the length of the rocker arm; L2 is the distance from the axis of rotation of the rocker arm to the guide} L. is the distance between the projections of the axes of the hinges of the rocker arm to the driven link; L4 - backstage length;

T, 5 - the length of the driven beam; 1 L6 - the distance between the axis of rotation of the rocker

The drawing shows a kinematic diagram and a graph of the dependence of the movement of the output link on the angle of rotation of the master beam.

The mechanism comprises a base 1 with a straight guide 2, an output link installed in its form in the form of a slider 3, and a leading b and a driven 5 rocker placed on the base 1. One end of the rocker arm is pivotally connected to the intermediate point B of the rocker 6, and the end of the rocker 5 is pivotally connected to the point L of the rocker 6 “Axes A and C of the rocker arm A and 5 are respectively located on one side of the guide 2 on a straight, perpendicular her and the length of the links of the mechanism are connected by the following relations mt AB 1j AN "1.1; DV 0.28, Yak 1.8, SD - 0.87; CA 0.15.

The mechanism works as follows, I

When the master beam Ts is rotated by an angle of 103 to either side of the X axis (direct CA), the wings 6 move along the stone 7 and the slider 5 is rotated, and its complex movement through the stone 7 and its hinge are converted into reciprocating motion the slider 3 in the guide 2, and within the angle of rotation of the rocker arm k by 206 °, the movement of the slider 3 is uniform

Claims (1)

The claims Rocker-slide mechanism, containing a base with a linear guide, an output link installed in it, mounted on the base of the driving and driven rockers, the axis of rotation of which are located on one side of the guide on a straight stone perpendicular to it, articulated connected to the output link, the link, pivotally connected to the ends of the rocker arm and kinematically with a stone, characterized in that, in order to expand the kinematic capabilities by increasing the range of uniform oscillations of the input and output enev, length units linked mechanism the following ratios: Lt 1; L2 1.1; L3 0.28, CH, b; L5 0.87; T.b 0.15, where Г, 4 is the length of the guide beam, L2 is the distance from the axis of rotation of the guide beam to the guide, L3 is the distance between the projections of the axes of the rocker hinges on the driven link, 7.4 is the length of the link, L5 - length of the driven beam Ч distance between the axes of rotation of the steering shaft