Super miniature winch. Drawing, description

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Subminiature winch. home workshop

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Young innovators of the Moscow Machine Tool Plant named after Sergo Ordzhonikidze have developed a subminiature winch, the dimensions of which (240x215x115 mm) allow us to call it "pocket". With a low dead weight - a little more than 7 kg - it develops a pulling force of up to 1 ton.

The basis of the mechanism is a self-braking worm pair; as a result, the main feature of the design is the absence of braking devices. This feature favorably distinguishes the novelty from similar manual winches produced by the industry.

Micro winch: 1 - eye, 2 - body with a small worm, 3 - large worm wheel, 4 - hook, 5 - cable, 6 - swing handle, 7 - pulley, 8 - ratchet

A big advantage of the new mechanism is also that its device allows you to disconnect the worm pair without changing the center distance, due to which the free play of the pulley paired with the large worm wheel, on which the cable is wound, is achieved. This allows you to quickly manipulate the cable, which significantly reduces the time to bring the device into position and facilitates its use. The rotation of the worm is carried out by a convenient "rocking" handle: economical reciprocating motion is provided by a switchable ratchet. The gear ratio of the worm pair is calculated in such a way that the force applied to the handle does not exceed 8 kg.

4 m of rope Ø 5,7 mm are wound on the winch pulley. This allows, in combination with the block, to carry out loading and unloading operations, move large-sized products, pull out a stuck car and even ... uproot stumps.

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