SU1379535A1 - Membrane mechanism - Google Patents

Abstract

This invention relates to mechanical engineering, in particular to motion transducers. The purpose of the invention is to provide control of the transmitted power by moving the cage along the membrane and increasing the durability of the mechanism by ensuring that part of the load is transferred to the cage. Providing the mechanism with at least one open ferrule 7, encompassing the membrane 3, made in the form of a plate, when the drive slide 2 acts on the ferrule 7 in the direction of the abutment 8 membrane 3 and the ferrule 7, jointly take the load, and the movement of the ferrule 7 along the membrane 3 allows you to adjust the power transmitted by the edges 4 and 5 to the rods 9 1 Cp. f-ly. Zil.

Description

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The invention relates to mechanical engineering, namely, mechanisms for converting one type of movement into another, and can be used for work in a vacuum, aggressive environment, and the like.

The aim of the invention is to provide control of the transmitted power by moving the cage along the membrane and increasing the durability of the mechanism by ensuring that part of the load is transferred to the cage. Fig. 1 shows the membrane mechanism (the initial position is indicated by thick lines); in fig. 2 section A-A in FIG. 1j in FIG. 3 - the same, with a clip having a wave shape.

The membrane mechanism comprises a base 1, a drive slider 2, a membrane 3 placed between them, made in the form of a plate, two opposite edges 4 and 5 of which are bent. The middle part 6 of the membrane 3 is enclosed by an open casing 7, the areas of which located along the edges of the middle part 6 of the membrane 3 interact respectively with the drive slider 2 and the stop 8 of the base 1. Edges 4 and 5, which are working sections of the membrane 3, interact, for example, with rods 9 executive bodies.

The yoke 7 can be made of materials different from the material of the membrane 3 and, depending on the operating conditions of the mechanism, will give the yoke a different shape.

For example, the holder 10 has a wave-like shape with the location of the waves along the membrane 3 (Fig. 3). Such a design of the holder 10 increases the rigidity of the mechanism in the longitudinal direction and reduces it in the transverse direction, gives the holder 10 elastic compensation properties and provides the tension of the holder 10 on the membrane. To adjust the stiffness characteristics of the mechanism, an additional plate of the corresponding TOL1CIN can be installed between the yoke and the membrane 3. On the membrane 3 it is possible to install two or more clips that can be placed not only on

parts on it, but also on working edges | 4 and 5. Additional clips expand the technical capabilities of the mechanism, namely, they can reinforce rigid

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the bone of the corresponding links and sections, and when installed on the bend, block the work of the corresponding edge.

The membrane mechanism works as follows.

When the slide 2 moves progressively towards the stop 8 of base 1 by the value S, there is simultaneously a loss of stability and elastic pulling of the holder 7, as well as the corresponding transverse deflection h of the middle part 6 of the membrane 3. Due to the elastic deflection, the holder 7 and the membrane 3 adopt the new stable a form (indicated by thin lines) in which the edges 4 and 5 are rotated by angle d and move the rods 9 of the actuators.

The forces on the rods 9 are determined by the total accumulated energy of the deformation of the yoke 7 and the membrane 3. The presence of the yoke allows for a wide range to adjust the force characteristics of the mechanism, as well as to optimize the ratios of elastic deformations in the elements of the mechanism, f. the purpose of increasing reliability at the maximum of power mechanism haoacteristics. In addition, the displacement of the cage along the middle part 6 of the membrane 3 allows the angles of rotation and the order of operation of the edges 4 and 5 to be adjusted. Approaching the cage to one of the edges causes the priority rotation of this edge to a larger angle and with greater force. Depending on the operating conditions, the mechanism allows materials and thicknesses to be changed by replacing the yoke from type-size rows, replacing the membrane itself, or both together in various combinations.

Claims (2)

1. A membrane mechanism comprising a base, a drive slider and a membrane placed between them, made in the form of a plate, the two opposite edges of which are bent, characterized in that, in order to control the transmitted power and increase durability, it is equipped with at least one enclosing the plate in the transverse direction, an open cage whose portions located along the edges of the plate are intended to interact with slider and base, respectively. 2. The mechanism according to claim 1, characterized in that the clip has a wave-like shape. Fig2 Asrig .Z