SU1337561A1 - Plate actuating mechanism - Google Patents

Abstract

The invention relates to means of hydropneumatic automation and m. used in output stages of digital control systems in robots, automatic machine lines. The purpose of the invention is to increase the efficiency and the transmitted torque. In the circular end grooves of the flexible wheel 2 are installed o-rings 14 of elastic material. At the end of the housing 1 on the inner side and the hard wheel 4 rigidly fixed sealing discs 9 of elastomeric material. The displacers are made in the form of plates with longitudinal grooves, in which the sealing pads 16 are installed. The flexible wheel, passing a torque, experiences twisting, therefore, the sealing of the working chambers can be carried out only in the contact of elastic materials with elastomeric ones. The rings are made of rubber, and the disks and linings are made of fluoroplastic, which allows reducing the friction between the elements of the mechanism. 1 hp f-ly, 2 ill. (L with with SP about:

Description

The invention relates to means of hydropneumatic automation, in particular to discrete actuators of automatic control systems, and can be used in the output stages of digital control systems in robots, automatic machine lines.

The aim of the invention is to increase efficiency and torque.

FIG. 1 schematically shows a plate actuator; in fig. 2 shows section A-A in FIG. one.

The plate actuator includes a housing 1, a flexible gear wheel 2, made in the form of a ring with two gear rims, one of which is connected to a stationary gear wheel 3, which keeps the wheel 2 from turning, and the second one - with a rigid gear wheel 4 connected to an output shaft 5. The stator 6 has radial nazy 7, in which the movable plates 8 are located with the ability to interact with the flexible wheel 2 and sealing discs 9, fixed with pin pins 10 relative to the stator 6. a pair of adjacent plates 8, stator 6 and The inner surfaces of the flexible wheel 2 form working chambers 11, the volume of which may change during deformation of the wheel 2. These working chambers 11 are connected by radial channels 12 into groups of two chambers evenly placed around the circumference of the stator 6. The flexible wheel 2 is made with circular end grooves 13 in which elastic seals 14 are installed; 1a, and the plates 8 have a longitudinal groove 15, made but the outer contour, in which a seal is placed, on the lining 16 of an elastomeric material. The cavities of the slots 7 are interconnected by channels 17. Two spool devices of discrete Tina with electric control 18 provide for the generation of a deformation wave of the flexible wheel 2.

Plate actuator works as follows.

Channels 17 are supplied with fluid from the high pressure line, thereby ensuring that plates 8 are constantly pressed against the inner surface of wheel 2 and the radial gaps between them are sealed. The sealing of the side gaps of the plates 8 of the stator 6 and the flexible gear 2 is provided with sealing discs 9, sealing rings 14 and sealing pads 16 due to the crimping (deformation) during assembly. High and low pressure lines are connected to both spool devices.

In the initial position, each spool occupies one of two extreme positions and a high-pressure working fluid, but channels 12 are brought in two pairs.

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working chambers 11 arranged side by side, so that the pressure acts on two opposite sections of the flexible wheel 2 with an arc of coverage 90 each. Two other pairs of working chambers 11 at this time are connected by channels 12 to a low pressure main. The fluid pressure deforms the flexible wheel 2 and engages it with the toothed rims of both rigid gears 3 and 4, fixing the angular position of the output shaft 5. When a control electrical impulse is applied to one of the spools 18, it is reversed chambers 11, previously filled with high pressure fluid, are connected to the low pressure mainline, and the other, which is 90 ° away from it and previously filled with low pressure liquid, is connected to the high pressure mainline. The zone of the greatest radial deformation of the flexible wheel 2 p. Is displaced around the circumference, as a result of which the output shaft 5 makes a turn by one tag. The flexible wheel 2, at random, is twisting, but therefore the sealing of the working chambers 11 can be carried out only in the contact of elastic materials with elastomeric materials, and in addition the combination of such sealing materials reduces the friction between the elements of the mechanism, improves efficiency and transmitted torque.

Claims (2)

Invention Formula 1, a plate-type executive mechanism, comprising a housing with flexible and rigid wheels mounted thereon, one of which is connected to the output shaft, an electro-hydraulic deformation wave generator including a stator and installed with the possibility of interaction with the flexible wheels and forming variable volume displacers, diametrically opposed chambers are connected by radial channels, a spool generator control device, characterized in that, in order to increase efficiency and torque nta, the flexible wheel is made with circular face grooves, in which sealing rings of resilient material are installed, on the butt end of the housing from the inner side and a rigid wheel connected to the outlet shaft from the inner side rigidly fixed sealing discs of elastomeric material, and the displacers are made in the form of plates with stripes but the outer contour, in which the sealing plates of elastomeric material are installed. 2. The mechanism according to claim 1, characterized in that the sealing rings are made of rubber, and the sealing discs and linings are made of fluoroplastic. A-A 7 / 15 eight 2