Elastic pneumatic cylinder

FIELD: the invention refers to pneumatic technique and may be used for pushing forward telescopic constructions of the type of mast and columns of high height without using lifting-transporting technique.

SUBSTANCE: the pneumatic cylinder has an elastic hose winded on a driving drum. The hose is provided with a pushing footstep bearing with an opening for feeding compressed gas and is leaning during the process of filling with compressed gas and moving from the driving drum on the driving supporting rollers locking the growing pole of gas for execution of the working move of the pushing footstep bearing with an effort equal to the gas pressure on the footstep bearing.

EFFECT: creation of a one-stepped pneumatic cylinder providing significant increase of the length of the move is achieved.

1 dwg


The invention relates to pneumatic technology and can be used for extension telescopic constructs such as masts and columns of great height without the use of lifting and transport equipment, as well as for other purposes.

Numerous designs of pneumatic and hydraulic cylinders, such as hydraulic cylinders, lifting the telescopic boom road and rail cranes.

The main disadvantage of these cylinders is the complexity of their production and ensuring integrity in the operation, which limits the stroke length of the cylinder and, accordingly, the length of the retractable telescopic structures.

The purpose of the invention is to develop a design single-stage pneumatic cylinder, providing a significant increase in stroke length and capable of replacing a multi-stage cylinders.

This goal is achieved by the design of the pneumatic cylinder, which represents a sleeve, made of a durable elastic material, the walls of which are capable of withstanding considerable pressure compressed gas. Work pushing the end of such cylinder is equipped with a hard thrust bearing, through which the cylinder is supplied with pressurized gas. This sleeve is both a cylinder and a piston.

In the initial position p is KAV wound on a drum or compactly laid any other way, and in the process of filling a compressed gas, finishing, comes with a rotating drum and a thrust bearing, as the piston performs the requested operation, for example, puts forward a telescopic structure.

Analogs of this invention, the author is not known.

The drawing schematically shows an elastic pneumatic cylinder, applied for the extension of the telescopic column.

The proposed pneumatic cylinder includes an elastic sleeve 1, which is tightly connected with the upper section is raised telescopic column, to which the top hose, the length of which corresponds to the length of the sleeve 1, the supplied compressed gas.

In the initial position, the sleeve is wound on the drum 2, is passed through the supporting rollers 3 and the guide rollers 4 and 5.

The drum 2, the supporting rollers 3 and the compressor have the same drive that allows simultaneous operation of these mechanisms, the constancy of the increasing gas pressure in the cylinder and the lifting speed of the section of the column.

The said actuator and the compressor not shown, and the guide rollers 4 and 5, the drive does not have.

Upon admission of compressed gas into the segment of the sleeve 1, located above the support rollers 3, which are tightly connected in between the walls of the sleeves, this piece becomes the property of a rigid cylinder. After switching gears, the rotating drum 2 and the supporting role and 3, the sleeve 1, filled with compressed gas, rises above the supporting rollers 3 and, based on them, puts the upper section of the column, which in this case replaces the thrust bearing.

Fully nominated top section pulls the second section and so on until a complete lifting of the column.

The proposed elastic cylinder can work and from the hydraulic actuator, and work in inclined and horizontal directions.

The principle of elastic cylinder can have multiple variants of the structural design, high strength modern elastic materials will allow you to develop such cylinders significant driving force, and almost no limited length with guaranteed integrity will ensure wide use of elastic cylinders in various areas of technology.

Elastic pneumatic cylinder containing wound on the drive pulley elastic sleeve, provided with a pusher thrust bearing with a hole for the supply of compressed gas and resting in the process of filling a compressed gas and leaving the drive pulley to the drive support rollers, locking the rising column of gas, for the implementation of the stroke of the feeding thrust bearing with a force equal to the gas pressure at the thrust bearing.


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