Full-magnification transformed and multi-fetching device interchangeable combined lifting device and using method for combined lifting device

Abstract

The invention provides a full-magnification transformed and multi-fetching device interchangeable combined lifting device. The combined lifting device consists of a top supporting and switching device, a fixed pulley device, a movable pulley device, a conversion device and a fetching device; the top supporting and switching device is provided with a dual-hook plate in a buckle structure; a V-shaped semicircular hole slot is formed in the upper part of the movable pulley device; the fixed pulley device can be combined with or separated from the top supporting and switching device through the opening and the closing of the dual-hook plate, and also can be connected with or separated from the movable pulley device through the V-shaped semicircular hole slot; the conversion device is connected below the movable pulley device; and the fetching device is arranged at the bottom end of the conversion device. By using the combined lifting device, the arbitrary transformation of the magnification between 1 and 10 can be realized, or the transformation between odd magnification and even magnification can be realized, namely full-magnification transformation is realized; and simultaneously, the exchange among a hanging hook, a hanging plate, a clamp and the like can be realized by the fetching device. The full-magnification transformed and multi-extract device interchangeable combined lifting device has a completely interchangeable function, and can be configured with fetching devices, such as the hanging hook, the hanging plate, the clamp and the like, of different tonnages and different types.

Description

technical field [0001] The invention relates to a combined hoisting device for hoisting machinery, in particular to a device for mutual conversion of full magnification of a pulley block and a use method thereof. Background technique [0002] The variable magnification of the pulley block is to make the crane realize the conversion between low-speed heavy load and high-speed light load without replacing parts, and realize various rated lifting capacities and various rated lifting speeds to meet the requirements of different working conditions. . At present, in hoisting machinery, the multiples of the pulley blocks are mostly changed between 2 and 4. It is quite difficult to change the multiples of large tonnage or large multiples such as 5, 6, 7, and 8, and the multiples are mostly changed between two types. It is difficult to realize the mutual transformation between them, so it is not easy to realize the variable magnification of the pulley block when the magnification is...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the defects and deficiencies of the traditional lifting device, such as the complicated transformation of the pulley block ratio, the unchangeable ratio, and the non-replaceable pick-up device, etc., and provide a method that does not reinstall and disassemble the steel wire rope and avoid disassembling the pin shaft at high altitude. Under the prerequisite conditions, it is a multifunctional combination lifting device that realizes full magnification conversion, full hook interchange, and multi-feed device interchange

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