Force reduction mechanism of winch

Abstract

The invention discloses a force reduction mechanism of a winch. The force reduction mechanism of the winch is composed of an upper guide wheel assembly, a lower guide wheel assembly, a shell, an uppercover plate, a driving bevel gear shaft, a transmission gear shaft, a lower grooved wheel shaft and an upper grooved wheel shaft, wherein the driving bevel gear shaft, the transmission gear shaft, the lower grooved wheel shaft and the upper grooved wheel shaft are sequentially arranged in the shell from bottom to top and integrally machined. The middle of the driving bevel gear shaft is installedon the annular inner edge of the shell. A driving bevel gear at one end of the driving bevel gear shaft is engaged with a driven bevel gear in the middle of the transmission bevel gear shaft, and theother end of the driving bevel gear shaft is connected with a power source. A driving straight gear at the end of the transmission gear shaft is engaged with a driven straight gear at the end of thelower grooved wheel shaft. Gear grooves are formed in the middle section of the lower grooved wheel shaft and the middle section of the upper grooved wheel shaft in parallel. The upper guide wheel assembly is installed on the upper cover plate to guide in a cable along the center line of the shell and then guide the cable to the lower grooved wheel shaft; and the lower guide wheel assembly is installed below the lower grooved wheel shaft and used for guiding the cable out from the upper grooved wheel shaft to a position away from a gear drive pair. The force reduction mechanism of the winch isof a long and thin structure and small in size and can provide a large load.

Description

technical field [0001] The invention belongs to the technical field of winch structure design, in particular to a winch force reduction mechanism. Background technique [0002] A winch is a light and small lifting device that uses a drum to wind a wire rope or chain to lift or pull heavy objects, also known as a hoist. The winch can be used alone or as a component in machinery such as lifting, road construction and mine hoisting; due to its high versatility, compact structure, small size, light weight, heavy lifting, and easy use and transfer, the winch It has been widely used in material lifting or flat towing operations in construction, water conservancy projects, forestry, mines, wharves, etc.; and the winch force reduction mechanism is an important part of the winch, which ensures that the winch can operate on the basis of its small size. However, the functional requirements of large loads can still be achieved. [0003] In recent years, due to the structure and perfor...

AI Technical Summary

Problems solved by technology

The design of the existing drawworks force reduction mechanism, its load capacity is inversely proportional to its volume, and the larger the mechanism that can provide the load, the larger and heavier the structure. On the contrary, the compact and small mechanism can provide the same load. The more limited; and extreme special working conditions such as polar regions or deep seas obviously require that the volume of the winch should be smaller under the premise of lifting the load, and the existing winch force reduction mechanism is obviously not suitable for operations in extreme special working conditions such as polar regions or deep seas Require

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