Drill bit and sampling device

Abstract

The invention provides a drill bit and a sampling device which can be used for solving the problems that the existing sampling device can not accurately get information of coal samples due to large coal blocks, hard coal blocks and icing of the coal blocks. The drill bit comprises a drill bit connecting rod, a lateral tooth piece and a main drill bit, wherein the lateral tooth piece is connected to the side surface of the drill bit connecting rod and comprises lateral teeth for cutting the coal blocks from the side surface, the main drill bit is connected at the bottom of the drill bit connecting rod and comprises downward main teeth, and a main tooth blade is arranged on the main teeth. The drill bit comprises a lateral blade and the main drill bit, when coal samples are collected, not only can the main teeth of the main drill bit exert static pressure on the contact surfaces of the coal samples to be collected, but also the lateral teeth of the lateral blade can exert lateral rotary cutting force on the coal samples to be collected, thereby increasing the destructive power on the coal samples to be collected, facilitating the collection of the coal samples in the large coal blocks, the hard coal blocks and the iced coal blocks, ensuring the comprehensive collection of the coal samples and the accuracy of the obtained coal samples and further accurately knowing the quality of coal as received.

Description

technical field [0001] The invention relates to the technical field of coal collection rotors, in particular to a drill bit and a sampler. Background technique [0002] At present, when mechanically sampling incoming coal such as thermal power and petrochemical, when the sampler encounters large coal lumps and coal gangue, the drill bit of the sampler can only squeeze out large coal pieces and hard coal pieces. However, it is impossible to collect representative coal samples in bulk coal and coal with high hardness, resulting in an incomplete analysis structure for the collected coal samples, which cannot accurately reflect the quality of incoming coal. [0003] In addition, when the temperature of the external environment is low, the surface of the coal will freeze during the transportation process. At this time, when the frozen coal enters the factory, the sampler often cannot collect it, so it cannot be accurately measured. The information of the coal samples was obtaine...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a drill bit and a sampler to solve the problem that the existing sampler cannot accurately obtain the information of the coal sample due to the large size of the coal, the hardness of the coal and the freezing of the coal

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