A driven sprocket mechanism of a hoist and the hoist

Abstract

The invention provides a driven chain wheel mechanism of a hoisting machine. The driven chain wheel mechanism comprises a lifting frame, a chain wheel shaft, chain wheels, lifting and guiding mechanisms and tightening mechanisms, wherein the lifting frame can be arranged on a machine frame of the hoisting machine in a lifting and moving manner; two ends of the chain wheel shaft are connected to the lifting frame in a rotating manner through rotating assemblies; the chain wheels are arranged on the chain wheel shaft; the lifting and guiding mechanisms are arranged between the lifting frame and the machine frame; the tightening mechanisms for enabling chains to be kept in a tightening state are arranged between the lifting frame and the machine frame. The invention further provides the hoisting machine comprising the driven chain wheel mechanism. According to the driven chain wheel mechanism disclosed by the invention, the lifting frame can guarantee that relative positions at two ends of the chain wheel shaft are always kept consistent, and wear and tear of the rotating assemblies caused by that the chain wheel shaft is inclined in the use process are avoided; besides, when the hoisting machine works, the chain wheel mechanism can perform buffering by moving up and down for a certain distance, so that t damage, powder leakage, chain jumping and the like of the chain wheel shaft can be effectively avoided, and the service life of the driven chain wheel mechanism is prolonged.

Description

Technical field [0001] The invention relates to a driven sprocket mechanism of a hoist and a hoist. Background technique [0002] The hoist has a wide range of applications, and can be used to hoist bulk and granular materials such as limestone, coal, gypsum, clinker, and dry clay, as well as powdered materials such as raw meal, cement, and coal powder. For example, the elevator is an important mechanism of the asphalt mixing plant, mainly used to lift the dried hot aggregate to a certain height and send it to the screening device. The elevator usually adopts a chain bucket elevator, which mainly includes a driving sprocket mechanism, a driven sprocket mechanism, a chain set on the driving sprocket mechanism and the driven sprocket mechanism, multiple hoppers mounted on the chain, and general The driving device, etc. installed on the top of the hoist and connected with the driving sprocket mechanism. In traditional assembly, the driven sprocket mechanism is usually fixedly insta...

AI Technical Summary

Problems solved by technology

In this way, due to installation errors or inability to move during use, there is no buffer, which makes the bearings easy to wear, resulting in powder leakage, chain skipping, and even damage to the sprocket shaft.

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