SU1359528A1 - Converter of rotary motion to translational motion - Google Patents

Abstract

FIELD OF THE INVENTION The invention relates to a machine building, namely to motion converters. The purpose of the invention is to reduce wear by eliminating contact between the intermediate element and the drive shaft and reducing the period of transitional processes by enabling operation control. The goal is achieved by placing the drive shaft 1 in the intermediate element 4 with a gap filled with electrorheological fluid 5, the viscosity of which is controlled by the controlled generator 6. When the drive shaft 1 rotates, the moving element 3 will perform translational motion in one or the other side, which is provided by increasing the viscosity of the electrorheological fluid 5 in the gap, depending on the switching on of one or another power source. 3 il. i cl SA: ate SP 00 00

Description

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The invention relates to mechanical engineering, in particular, to converters, and can be used in instrument engineering in designing positioning systems with the need for a small acceleration time, braking and reverse wheels, links and other elements, in particular, in drives for positioning magnetic disk heads or sampling devices information of computers and minicomputers, as well as in the design of high-speed electric

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mechanical instruments, precision speed assemblies and mechanisms for obtaining reverse movement and converting rotational movement into translational movement.

The aim of the invention is to reduce wear by eliminating contact between the intermediate element and the drive shaft and reducing the period of transient processes by allowing operation control.

FIG. 1 shows a converter circuit; in fig. 2 - oscillograms of the angular velocity of the shaft (a), control voltages (b) and speed of movement of the moving element (c), where t, is the acceleration time; tp - reverse time; t is the deceleration time; Fig. 3, the power supply circuit when the device is operating in the vibration mode.

The converter contains a drive shaft 1 placed on a fixed axis 2, a movable element 3, an intermediate element 4 made in the form of a closed volume, and an electrorheological fluid 5 filling it, which is controlled by a controlled generator 6. The movable element 3 is placed in guides 7 and is divided into two parts, symmetrical to its axis, by an insulating layer 8. When the converter is operating in vibratory mode, generator 6 is connected to the power sources by means of diodes 9, passing current in one direction.

The Converter operates as follows.

Shaft 1 rotates around a fixed axis 2. When connected, a generator and insulating interlayer divides

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pa 6 viscosity of electrorheological fluid 5 in the upper zone instantly

movable element symmetrically it into two parts.

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varies (up to complete hardening). At the same time, an additional intermediate link is formed in the gap between the shaft 1 and the intermediate element 4, which due to the viscous friction forces converts the rotational movement of the shaft 1 into the translational movement of the movable element 3 in the direction 7. When the generator 6 is connected at the bottom. An additional intermediate link is also formed between the shaft and the intermediate element 4 by changing the viscosity of the fluid, which allows the rotational movement of the shaft 1 to be converted into translational motion of the moving element 3 in the opposite direction, i.e. to ensure its reverse movement without reverse rotation of the drive shaft 1.

In this way, the reverse movement of the movable element 3 is ensured in the absence of wear on the working surfaces with a small acceleration, deceleration and reverse time. By controlling the generator, various laws of motion can be set for the moving element 3.

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Formula. gaining

A rotary-to-translational converter comprising a generator, guides, a movable element housed therein, and a drive shaft interacting with the latter through an intermediate element connected to the generator, characterized in that, in order to increase reliability by reducing wear by eliminating contact between an intermediate element and a drive shaft and reduce the period of transient processes by providing the possibility of controlling the operation, the generator is made controlled, the intermediate element The ent is made in the form of a closed volume filled with electrorheological fluid, the drive shaft is placed in it with a gap, and the transducer is equipped with an additional controlled generator, also connected to the closed volume.

The movable element is symmetrical to its axis in two parts.

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Claims (1)

Formula m s. gaining A rotary to translational motion converter comprising a generator, guides, a movable element housed therein and a drive shaft interacting with the latter by means of an intermediate element coupled to the generator, characterized in that, in order to increase reliability by reducing wear by eliminating contact between the intermediate element and drive shaft and reduce the period of transient processes by providing the ability to control operation, the generator is made controllable, an intermediate element The entrant is made in the form of a closed volume filled with electrorheological liquid, the drive shaft is placed in it with a gap, and the converter is equipped with an additional controlled generator, also associated with the closed volume, and an insulating layer dividing the movable element symmetrically to its axis into two parts.