Electromagnetic braking type mining drilling tool with efficient dedusting and cooling functions

Abstract

The invention discloses an electromagnetic braking type high-efficiency dust removal and cooling mining drilling tool, which includes a water inlet pipe sleeve, a water spray cover, a mining drill bit, a mining drill pipe and a brake disc. The front end of the water inlet pipe sleeve is welded with a water spray cover. The rear end of the water inlet pipe sleeve is welded with an end seal plate, and a water inlet cavity is formed between the end seal plate, the water inlet pipe sleeve and the water spray cover; a mining drill pipe is installed in the water inlet cavity, and the mining There is a sealing ring between the drill pipe and the water spray cover, and the front end of the mining drill pipe passes through the water spray cover to weld the limit pin, which is inserted into the slot in the middle of the heat conduction plate, and the heat conduction plate is embedded in the mining drill bit; The front end of the mining bit is provided with a number of cutting teeth, and the side of the mining bit is welded with a number of cutting teeth through a welding block; the synchronous cooling process of the inside and outside of the mining bit is realized, and the cooling effect is good; the braking effect is good, and the water flow in the water chamber The heat generated by braking is dissipated in time, and the cooling effect is good, which solves the existing serious problem of braking heating and scalding.

Description

technical field [0001] The invention relates to the technical field of mining equipment, in particular to an electromagnetic brake-type high-efficiency dust removal and cooling mining drilling tool. Background technique [0002] At present, underground mining rigs use rock drills as their working mechanism. During the drilling process, due to the impact and rotation load of the rock drill, the body of the underground mining rig rock drill vibrates to varying degrees. The vibration of the body of the mining rig rock drill will reduce the drilling accuracy and The reliability of the drilling rig system, while increasing energy consumption and reducing drilling efficiency. Therefore, need a kind of rotary drilling tool to replace traditional rock drilling machine to carry out mining operation. However, in the process of mining, the drill bit is heated and hot by friction, and if the heat is not dissipated in time, the drill bit will be damaged, and a large amount of dust will ...

AI Technical Summary

Problems solved by technology

However, in the process of mining, the drill bit is heated and hot by friction, and if the heat is not dissipated in time, the drill bit will be damaged, and a large amount of dust will be generated, which requires dust reduction and air purification, and the drill pipe needs to have good braking performance. The existing friction brake It will also generate a lot of heat, and only relying on heat dissipation in the air cannot effectively dissipate the heat generated by short-term braking friction, which will affect the service life of the brake disc and friction lining

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