A Combined Pulley Block Converting Between Moving and Fixed Pulleys

Abstract

The invention relates to the field of pulley sets, in particular to a combined pulley set for movable and fixed pulley conversion. The combined pulley set comprises a fixing module, a fixed pulley module, a movable pulley module, a conversion locking mechanism, a stall preventing mechanism, a hanger and a speed measuring sensor; the fixed pulley module is fixedly mounted at the bottom of the fixing module; the movable pulley module is mounted under the fixed pulley module; the movable pulley module and the fixed pulley module are detachably mounted through the conversion locking mechanism, andare fixedly mounted to form a fixed pulley mechanism; and the stall preventing mechanism is mounted on the fixed pulley module. Through the conversion locking mechanism and the fixing module, movableand fixed pulleys of the pulley set are converted for use, so that the locking fall is prevented, the positioned locking is realized, the conversion operation is convenient of the movable and fixed pulleys, and the stability is excellent; a rope is extruded for locking by the stall preventing mechanism, so that the stall preventing purpose is achieved, and accidents and los caused by stall are prevented; and through turbine worm self-locking performance, the control precision of the stall preventing mechanism is improved.

Description

technical field [0001] The invention relates to the field of pulley blocks, in particular to a combined pulley block for conversion of movable and fixed pulleys. Background technique [0002] The pulley block is a simple machine assembled from multiple movable pulleys and fixed pulleys, which can save effort and change the direction of force. The labor saving of the pulley block is determined by the number of strands of the rope, and its mechanical efficiency is determined by the gravity of the object being pulled, the gravity of the moving pulley, and friction. The pulley is a small wheel with grooves around its periphery that can rotate around its axis. A simple machine that can rotate around a central axis, consisting of a grooved disc that can rotate around a central axis and a flexible cable (rope, tape, cable, chain, etc.) across the disc, is called a pulley. [0003] When lifting a heavy machine, it is necessary to use multiple pulley blocks to achieve the purpose of...

AI Technical Summary

Problems solved by technology

[0003] When lifting a heavy machine, it is necessary to use multiple pulley blocks to achieve the purpose of lifting. When the pulley block breaks down, the rope on the pulley block will slide too fast, and even fall from a high altitude, causing damage and loss of objects. Larger security risks

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