SU1532763A1 - Rotation to reciprocation converter - Google Patents

Abstract

The invention relates to mechanical engineering and can be used in devices for converting rotary motion into reciprocating movement of several actuators with interdependent, adjustable motion of them with respect to each other. The purpose of the invention is to expand the kinematic capabilities of the mechanism. The goal is achieved by the fact that the rotational movement of the driving link 5 is converted into the translational movement of the driven link 6 due to the screw guide 2 of the housing 1 and the translational movement of the driven link 12 due to the interaction of the flat surface 10 of the lever 9 with the roller 11 of the driven link 12. At that, the value movement of the slave link 12 with a constant amount of movement of the slave link 6 may be negative, positive and equal to zero, depending on the angle α. 1 il.

Description

22

SP

Gj

to

3

about

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4 The invention relates to mechanical engineering, can be used in devices for converting rotary engines into reciprocating movement of several actuators with interdependent, adjustable motion relative to each other.

The purpose of the invention. - expansion of the kinematic capabilities of the mechanism.

The drawing shows a mechanism for converting rotational motion into a reciprocating, general view.

The mechanism includes a housing 1 with a screw guide 2 and two rectilinear guides 3 and 4, which interacts with a screw guide 2, a driving link 5 in the form of a screw with a right and left thread, a driven link 6, interacting with a rectilinear guide 3 and a hinge connected to the driving link 5 with the help of a sub-stick 7. On the follower link 6 on the axis 8 there is a lever 9 with a flat surface 10 interacting with the roller 1 1 of the second follower link 12 in the second rectilinear guide 4 of the housing 1. The second follower link 12 is made in the form of a rod 13 and is spring-loaded by the spring 14 to the flat surface 10 of the lever 9. In the housing 1 on the rectilinear guide 3 an adjusting screw 15 is installed, which interacts with the lever 9.

A constant contact of the lever 9 with the adjusting screw 15 is provided with a spring 16 mounted on the rectilinear guide 3 of the housing 1. The follower link 6 is equipped with an actuating element in the form of a rod 17, and the lever 9 is mounted on the axis 8 at an angle a. its curved surface 10 and the direction of translational movement of the slave link 6. The magnitude of the flap is set by the adjusting screw 14.

The screw guide 2 can be made directly and 1 or in the form of a bracket 18 with cyv.pc.vi Id interacting with the rack of the driving link 6. The bracket 17 is fixed to the housing 1 with screws 20.

Linear guides 3 and 4 can also be made directly in the housing 1 or in the form of brackets 21 and 22 fixed to the housing 1 by screws 23.

When the second follower link 12 is made in the form of a circular rod, to prevent it from turning around the axis of the driven link 12, a groove 24 is performed on the side surface of the driven link 12, and a latch 25 interacting with the groove 24 is installed in the housing 1 or in the bracket 22.

The mechanism for converting rotational motion into reciprocating works as follows.

When the driving link 5 rotates, its translational movement, which occurs due to the interaction with the screw guide 2 of the housing 1, is transmitted through the substitute 7 to the driven link 6 and the rod 17 moving in the linear guide 3. The stroke magnitude of the rod 17 is related to the speed of rotation Lead Link 5 Addiction

V

p p t 50

five

five

0

0

0

five

five

0

Where

Si - the stroke of the rod 17, mm; n - the number of revolutions per 1 min of the leading link 5;

P - thread pitch leading link 5;

t is the time of rotation of the leading link.

When the slave link b is moved, the lever 9 mounted on the axis 8 of the slave link 6 moves with it, while due to the interaction of the flat surface 10 with the roller 11 of the driven link 12, the latter also makes translational movement at an angle to the direction of movement of the driven link 6.

The amount of movement of the slave link 12 is related to the stroke of the slave link 6 according to

S2 link size 12;

the angle between the flat surface 10 of the lever 9 and the direction of translational movement of the slave link 6.

The amount of movement S2 of the follower link at a constant value of the stroke of the rod 17

where s2

Si tga, displacements

slave

but -

12

may be negative, positive and equal to zero depending on the angle a.

Claims (1)

Invention Formula A mechanism for converting rotary motion into reciprocating, comprising a housing with a screw and a straight guide, a lead link in the form of a screw interacting with a screw guide, and a pivotally connected slave link interacting with a linear guide, characterized by that, with a chain of expansion of kinematic possibilities, at least one additional linear rail guide is made in the housing, angled to the first linear rail, and the supply mechanism The adjustment screw is mounted on the first rectilinear guide pivotally mounted on the follower link by means of a flat surface lever designed to interact with the adjusting screw, which are additional in the number of additional lines 1532763 56 linear guides by the driven units in the lever, and a spring mounted on the front of the rods installed respectively on a straight linear guide and npei in these guides and intended to interact with the flat surface of the lever