Method for manufacturing novel cutting pick from waste cutting pick by adopting grafting mode

Abstract

The invention relates to a method for manufacturing a novel cutting pick from a waste cutting pick by adopting a grafting mode, which belongs to the technical field of coal machinery. The method comprises five links of cleaning, separating, processing of the waste cutting pick, processing and treating of a grafting pick body. The method is characterized by further comprising three links of grafting, charging of a hard alloy and pick body enhancement, wherein the grafting can be carried out by adopting a soldering, welding, hot charging or friction welding mode; the charging of the hard alloy can be carried out by adopting a soldering or hot charging mode; and the pick body enhancement can be carried out by adopting a quenching, isothermal quenching, surface spraying (or welding) or cladding mode, or the grafting pick body or a grafting body can be enhanced simultaneously by adopting more than two modes. The invention provides a path for utilizing the waste cutting pick; and according to the method disclosed by the invention, the problem of recycling of the waste cutting pick is solved, production materials are saved, energy consumption for production is reduced, production procedures are simplified, and the production cost is reduced.

Description

technical field [0001] The invention relates to a method for manufacturing a shearer pick, in particular to a method for manufacturing a new pick by grafting waste picks, which belongs to the technical field of coal machine manufacturing. Background technique [0002] Shearer is one of the coal mining machines widely used in coal mines at home and abroad. The pick is a key part for cutting coal and rock, and most of the power consumed by the shearer is consumed by it. During the process of cutting coal and rock, the picks must bear high compressive stress, shear stress and impact load, and often encounter hard mineral materials such as coal gangue. Due to the complex working surface of the picks, it is easy to Cause the pick to fail, the failure forms of the pick mainly include: alloy wear, alloy shedding, tooth body breakage and tooth body bending, etc. Among them, alloy shedding is the most common form of pick failure. Consumable parts commonly used in excavation machiner...

AI Technical Summary

Problems solved by technology

During the process of cutting coal and rock, the picks must bear high compressive stress, shear stress and impact load, and often encounter hard mineral materials such as coal gangue. Due to the complex working surface of the picks, it is easy to Cause the pick to fail, the failure forms of the pick mainly include: alloy wear, alloy shedding, tooth body breakage and tooth body bending, etc. Among them, alloy shedding is the most common form of pick failure. Consumable parts commonly used in excavation machinery such as mines, tunnels, etc., especially in the coal industry, the consumption of picks is huge. At present, only the coal industry in China consumes more than 10 million picks per year. For failed picks, enterprises generally use scrapped picks. way, resulting in huge waste

According to the search of the Chinese patent database, all previous patent applications related to picks focused on the improvement of the structure, shape, and process of new picks, and none of the patent applications was aimed at the recycling and reuse of waste picks.

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