RU2676589C1 - Screw motor - Google Patents

Abstract

FIELD: engines and pumps.SUBSTANCE: invention relates to screw propulsion units. In the screw propulsion unit, the hollow rotor is made of a square or rectangular aluminum pipe. Multiple screw ridge is assembled on a pipe from the system of rubber and/or plastic sheets having a square or rectangular opening with the size comparable to the size of the pipe-rotor.EFFECT: extension of the screw propulsion unit functionality is achieved.1 cl, 1 dwg

Description

The invention relates to transport machinery, in particular to off-road vehicles, and can be used as a mover in wheelchairs to overcome public flights of stairs.

Known auger mover / see ed. testimonial. No. 551215 (class B62D 57/00, B60F 3/00, В62М 27/00) dated 05/20/1975 /, containing a hollow rotor with a screw comb, equipped with a shaped-articulated chain removably mounted on the top of the screw crest with its axles freely positioned hinges by rollers.

The well-known auger mover - the prototype is technologically unnecessarily complicated and poorly adapted for movement on a hard surface (asphalt, concrete, etc.), especially as an mover in wheelchairs to overcome public stairways.

In order to eliminate the noted drawbacks in a screw mover containing a hollow rotor with a screw comb, the hollow rotor is made of an aluminum pipe of square or rectangular shape, and a multi-start screw comb is assembled on the pipe from a system of rubber and / or plastic sheets having a square or rectangular hole with the size commensurate with the size of the rotor pipe. The technical solution proposed by the invention is illustrated in FIG.

The screw propulsion according to the invention comprises a hollow rotor 1 with a multi-helical screw ridge 2. Moreover, the hollow rotor 1 is made of an aluminum pipe of square or rectangular shape. At the same time, a multi-start screw ridge 2 is assembled on the rotor pipe 1 from a system of rubber and / or plastic sheets having a square or rectangular hole with a size commensurate with the size of the corresponding rotor pipe 1.

Since the screw ridge 2 of the proposed design is elastic and stepped (and not hard and smooth), the adhesion of the proposed screw propulsion with a road surface, including asphalt, concrete, public staircases, will be more reliable than in the prototype.

A wheelchair equipped with the proposed screw propeller acquires cross-country ability both on weakly bearing soils (sand, peat, snow, etc.) and on hard surfaces (asphalt, concrete, etc.), including public flight of stairs, due to the elastic screw ridges 2 of rubber and / or plastic sheets typed on the pipe 1.

The manufacturing technology of screw propellers of the proposed design is simplified as much as possible, which reduces the cost and extends the functionality of screw propellers for wheelchairs.

The wheelchair, equipped with the proposed screw propeller from the sides, is able to move forward and backward when the augers rotate at the same speeds or at the same speeds, and can rotate when the augers rotate in the same direction at different speeds, i.e. capable of repeating all movements of wheelchairs on a wheeled, tracked and wheeled-tracked track.

Additionally, the wheelchair equipped with the proposed screw propeller is able to move left and right with the screws rotating in the same direction at the same speeds, thereby expanding the functionality of wheelchairs for the disabled.

Thus, the proposed technical solution, according to the applicant, is new, has an inventive step and is industrially applicable.

Claims (1)

A screw mover comprising a hollow rotor with a screw ridge, characterized in that the hollow rotor is made of an aluminum pipe of square or rectangular shape, and a multi-start screw ridge is assembled on the pipe from a system of rubber and / or plastic sheets having a square or rectangular hole with a size of commensurate to the size of the rotor pipe.

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