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How widely is now used a hand winch

Hand winch refers to mechanisms based on traction, acting according to the principle of applying the strength of the muscles of a person. If you do not need a high speed of lifting the load and if it moves a short distance, in this case it is often used Hand winch. Such things are indispensable in warehouses and production halls. They are also widely used in construction and transport as a reliable and convenient mechanism for lifting and moving cargo. Hand winches are used in the case of moving materials during installation work, in the absence of electrical energy. The winch does not require power from the electrical network. Depending on the type of cargo being moved and the features of the room, it is not difficult to choose the option with the necessary characteristics.

Hand winch has a lever and drum principle of operation. The manual lever winch acts by the principle of pulling the rope through the body with the help of latches, alternately clamping the rope and moving it in the necessary direction. In the second type of winch, the lifting, as well as the lowering of materials, are accomplished by rotating one or two handles mounted on the drive shaft. One of the most common load-lifting mechanisms of a multifunctional purpose is considered a manual lever winch. A manual winch of this type has no alternative when working with small loads.

The drum winch is simple in design and consists of a casing, a drum for winding ropes or ropes, two plain bearings, a drive handle. Such devices are very simple to operate, but considerable effort is required when lifting the load. A manual drum winch can be used where it is sufficient to increase the tractive force by no more than three times, because there is a direct relationship between the drum radius and the rotational radius of the handle of the drive.

There is a manual lever winch from the mechanism of a ratchet, reliable button lock, one-piece frame structure with reinforced bolts, two forged hooks with safety latches and a case of hardened galvanized steel. The winch cable is wound on the drum by means of the reciprocating motion of the lever. The latch of the latch is disengaged from the ratchet for unwinding the cable.

The scope of the manual lever winch is diverse (both in everyday life, and in industry, in industry). This device is completely universal and autonomous, it can be used in any position and does not require rigid attachment. Manual lever winch can be used both indoors and outdoors.

Thus, the above types have a similar design and hardly differ in the way they are used. Despite this, the drum and lever winches are characterized by different overall dimensions, strength and price. These devices are inferior in performance to electric winches, and are the leaders in terms of availability.

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