RU2567080C1 - Device for programmable control - Google Patents

Abstract

FIELD: mechanics.

SUBSTANCE: device for programmable control contains casing 1 in form of cylinder connected at ends with work agent supply 2 and drainage 3 systems, sensors 5 and elastic hose 4 installed in casing and filled with compressed gas. The hose ends are bent and secured on the casing. Internal walls of the hose are spiral twisted relatively to the central axis. The work agent by the system 2 is supplied to casing, and by the system 3 the work agent is drained from the casing, at that the hose moves and closes and opens the sensors 5 relatively its central axis.

EFFECT: higher reliability and longer service life of the device.

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Description

The invention relates to automation, and in particular to systems for issuing commands to actuators, and can find application in various fields of technology.

A device is known comprising a cylinder with a piston and sensors mounted on the surface of the cylinder along the path of the piston, and a system for feeding and draining the working agent from the cylinder cavities (see USSR author's certificate for invention No. 265721, IPC F15V 13/43, 1968) .

The disadvantages of this device include the complexity of the design, the need for high accuracy and purity of processing parts.

Of the known technical solutions, the closest to the claimed technical solution is a device for program control, containing a cylinder with a piston made in the form of a gas-filled elastic sleeve, the ends of which are bent and fixed on the cylinder body, and sensors installed on the surface of the cylinder along the piston and a system for supplying and discharging a working agent from cylinder cavities (patent RU No. 2029342, publ. 02.20.1995).

The disadvantages of the prototype device are the relatively shorter service life due to uneven crushing of the elastic sleeve and the possibility of leakage, which dramatically reduces the reliability of the device.

The objective of the invention is to increase the service life and reliability of the device.

To solve this problem, in a program control device comprising a cylinder-shaped housing communicated at the ends with supply and drain systems for the working agent, sensors and an elastic sleeve filled with compressed gas installed in the housing, the ends of which are bent and fixed to the housing, the sleeve being made with the possibility of closing and opening of sensors installed in the housing along the path of movement of the sleeve, the inner walls of the elastic sleeve are twisted helically in relation to its central axis.

The essence of the invention lies in the fact that the inner walls of the elastic torus are helically twisted. This new feature allows the claimed technical solution to achieve new properties, which consist in achieving uniform crushing of the entire surface of the elastic sleeve when it is rolling and preventing leakage of the working agent through the inner walls of the elastic sleeve. These new features and properties are absent in the known technical solutions and allow the claimed technical solution to achieve the effects of increasing the service life and reliability of the device.

The above allows us to argue that the proposed technical solution meets the criteria of the invention of "novelty" and "significant differences".

In FIG. 1 shows a device for program control, sectional view.

The device comprises a housing 1 in the form of a cylinder of arbitrary shape, for example, a bent cylinder. At the ends of the housing is in communication with the systems 2 and 3 of the supply and discharge of the working agent. An elastic sleeve 4 is installed in the housing 1, the ends of which are bent and fixed on the inner surface of the housing. Sensors 5 are installed in the housing. The cavity 6 of the sleeve is filled with compressed gas (for example, air). The inner walls 7 of the sleeve 4 are helically twisted relative to the central axis of the elastic sleeve (piston).

The device operates as follows.

System 2 serves the working agent in the housing 1, and system 3 drains the working agent from the housing. Sleeve 4 thus moves to the right. Feeding the working agent with system 3 and draining it with system 2, move sleeve 4 to the left. The inner walls 7 of the sleeve 4 are helically twisted. Moreover, the degree of torsion of the inner walls 7 should be such that it forms an elastic rope. But this is not allowed excessive torsion of the inner walls 7, which leads to overstrain and the release of the inner walls of the sleeve beyond the limits of linear equilibrium.

When you move the sleeve 4 to the right on the left side, the outer walls of the sleeve begin to curl, passing into the inner walls 7. In this case, on the right side, the inner walls 7 of the sleeve 4, turning into the outer ones, are untwisted. When you move the sleeve 4 to the left on the right side, the outer walls of the sleeve begin to curl, passing into the inner walls 7. In this case, on the left side, the inner walls 7 of the sleeve 4, turning into the outer ones, are untwisted.

Sleeve 4 when moving closes and opens sensors 5.

Using the proposed device, in comparison with the prototype device, will increase the service life due to the achievement of uniform crushing of the walls of the elastic sleeve, as well as the reliability of the device in operation by preventing leakage of the working agent through the inner walls of the sleeve.

Claims (1)

A device for program control, comprising a cylinder-shaped housing communicated at the ends with the working agent supply and drain systems, sensors and an elastic sleeve filled with compressed gas installed in the housing, the ends of which are bent and fixed to the housing, the sleeve being made with the possibility of closing and opening sensors installed in the housing along the path of movement of the sleeve, characterized in that the inner walls of the elastic sleeve are helically twisted relative to its central axis.