Saw arm mechanism for belt transmission dual-blade cutting sawing machine

Abstract

The invention relates to a saw arm mechanism for a belt transmission dual-blade cutting sawing machine. The saw arm mechanism comprises a transmission belt, an arm frame, a saw blade installing mechanism and dual spaced saw blades, wherein the arm frame comprises a substrate, a compression spring, a guide post, a main shaft installing block, a pressing bolt and an end cover; the saw blade installing mechanism comprises a compression spring, a pressure block, a locking bolt, a pressure bearing and a main shaft; each of the dual spaced saw blades consists of a saw blade substrate and a belt pulley disk. By adopting the saw arm mechanism, the belt transmission dual-blade cutting is realized, the size and weight of the sawing machine are reduced effectively, the service performance of the sawing machine is improved, the service life of the sawing machine is prolonged, the maintaining difficulty of the sawing machine is lowered, and the difficulty in changing the transmission ratio and the cost of a light-duty sawing machine are lowered effectively; moreover, a reliable mechanical overload self-stopping protection function is provided, so that the practicability and safety of the light-duty sawing machine are improved effectively from a plurality of aspects.

Description

technical field [0001] The invention relates to a saw arm mechanism of a saw machine, in particular to a saw arm mechanism of a belt-driven double-cutting saw machine. Background technique [0002] Saw machine is a commonly used tool in processing industry, infrastructure industry and emergency rescue and disaster relief. It is widely used in the processing fields of building materials, wood, steel, etc., as well as in building decoration, emergency rescue and disaster relief. At present, light-duty saw machines are widely used in the field of building decoration and emergency rescue and disaster relief. Light-duty saw machines have the advantages of light weight, small size, low power consumption, and convenient transportation. They mainly include hand-held saw machines, small car saw machines and small bench Saw machine, this type of light-duty saw is fast in cutting, flexible in operation, and has good practical performance. However, light-duty saws still have many disad...

AI Technical Summary

Problems solved by technology

However, light-duty saws still have many disadvantages: first, the operator is relatively close to the saw blade during cutting, which causes greater dust and noise damage to the operator; With gear transmission, the weight of the saw machine is not light enough. In some special occasions that require a long time of sawing, the use of a heavy saw machine will consume more energy for the operator; In some special occasions, the light-duty sawing machines such as hand-held sawing machines currently on the market have poor performance, laborious cutting, and poor cutting effects. The probability of rust and gear wear is high, the service life is limited, and maintenance is difficult; fifth, most light-duty saws currently on the market do not have overload protection or use a costly and easily damaged circuit overload protection method. The environment is harsh, and the current overload protection technology for light-duty saws obviously does not meet the actual requirements; Sixth, most light-duty saws currently on the market cannot change the transmission ratio under the premise of ensuring their own volume and weight, or change the transmission ratio through electrical methods. Class methods are difficult to implement and costly

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