Steel-aluminum combined chain wheel

Abstract

The invention relates to the technical field of chain wheels, in particular to a steel-aluminum combined chain wheel. Comprising a wheel body and wheel teeth. The surface on the wheel body comprises an outer ring surface and an outer side surface; sliding grooves are evenly formed in the outer ring face of the wheel body. The gear teeth are in sliding fit with the sliding grooves; the gear teeth and the sliding grooves are fixed through fixing mechanisms, and the positions of the gear teeth in the sliding grooves can be adjusted. The gear teeth slide in the sliding grooves, the positions of the gear teeth are adjusted, and then the gear teeth are fixedly matched with the first fixing blocks, so that the positions of the gear teeth can be adjusted after the gear teeth are abraded and the length of the part, exposed out of the gear body, of the gear teeth is shortened, and the length of the part, exposed out of the gear body, of the gear teeth is restored to the original length; and meanwhile, after a single gear tooth is replaced, the length of the part, exposed out of the gear body, of the gear tooth can be adjusted to be the same as that of other gear teeth, so that transmission between the gear tooth and a transmission chain is more stable during rotation.

Description

technical field [0001] The invention relates to the technical field of sprockets, in particular to a steel-aluminum composite sprocket. Background technique [0002] The sprocket is the embodiment of power transmission and drive in the industry. It requires good strength, wear resistance and low transmission deformation. The existing industrial drive sprockets are roughly divided into two types. One type of sprocket is processed from steel, and its rigidity It has good strength and can meet the requirements of industrial driving, but it is heavy, causing part of the kinetic energy to be consumed in the rotation of the pulling sprocket, so that the output power cannot be fully utilized; the other sprocket is processed from aluminum alloy. The weight of the sprocket is light, but the hardness and strength are not as good as the steel sprocket, and the service life is short; therefore, the outer ring of the sprocket is usually made of steel material, which has high strength; th...

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Problems solved by technology

[0002] The sprocket is the embodiment of power transmission and drive in industry. It requires good strength, wear resistance and low transmission deformation. The existing industrial drive sprockets are roughly divided into two types. One kind of sprocket is made of steel. The strength and strength are good, which can meet the requirements of industrial drives, but the weight is large, causing part of the kinetic energy to be consumed in the rotation of the pulling sprocket, so that the output power cannot be fully utilized; the other sprocket is made of aluminum alloy, and the aluminum alloy The weight is light, but the hardness and strength are not as good as the steel sprocket, and the service life is shorter; therefore, the outer ring of the sprocket is usually made of steel material, which has high strength; the inner ring is made of aluminum alloy material, which is light in weight and corrosion-resistant , forming a steel-aluminum composite sprocket;

[0003] The teeth of the sprocket will be worn during use, which will reduce the thickness of the teeth of the sprocket and reduce the strength of the teeth of the sprocket. The large sprocket is expensive, and the staff of the large sprocket will generally wear out after the teeth of the sprocket are worn. Carry out repairs so that the large sprocket can be reused to reduce costs; there is a plan to replace the teeth of the sprocket to replace the worn teeth, but in actual use, it can only be used when all the teeth wear more than 40% The tooth thickness (the distance between the top of the tooth and the root circle) cannot be adjusted when the tooth wear is small; at the same time, when a single tooth has peeling or pitting defects, after replacing it, the new The degree of wear of the replaced gear teeth is inconsistent with that of other gear teeth, so the tooth thickness of the gear teeth is different, resulting in unstable transmission of the sprocket, which in turn causes the limitations of this solution

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