Vortex negative-pressure dust removal device for down-the-hole drill

Abstract

The invention discloses a vortex negative-pressure dust removal device for a down-the-hole drill. The vortex negative-pressure dust removal device comprises a device main body, a control panel and a concave plate, wherein a dust receiving box is slidably arranged at the bottom end of the interior of the device main body; the concave plate is arranged in the middle position of the interior of the device main body; two sides of the concave plate are respectively and slidably connected with a sliding block; a second screw rod is movably connected with and arranged at the middle position of the interior of a cover plate; a second screw sleeve is movably connected with and arranged at the exterior of the second screw rod; two sides of the second screw sleeve are respectively and movably connected with a connecting rod; and a pull rod is fixedly connected with and arranged at one side of each connecting rod. According to the invention, the concave plate is arranged in the middle position ofthe interior of the device main body; dust and gravels sucked into the device main body by a fan fall onto the concave plate due to gravity; when the gravity reaches a certain value, the concave plateslides downwards on sliding grooves through the sliding blocks; a through hole located at the bottom end of the concave plate is not in contact with a connecting column; the dust and the gravels thenenter the dust receiving box; and the concave plate then returns to an original position under the elastic force of third springs.

Description

technical field [0001] The invention relates to the technical field of dust removal devices, in particular to a vortex negative pressure dust removal device for a down-the-hole drilling machine. Background technique [0002] Down-the-hole drilling rigs are widely used in earthwork excavation and blasting projects in various types of mines, hydropower, transportation and other engineering constructions. They can also be used for underwater rock perforation and blasting in ports, waterways, etc., and a lot of dust will be generated during the use of down-the-hole drilling rigs. With gravel, it will not only affect the sight of the constructor and hinder the work of the constructor, but also cause damage to the down-the-hole drilling machine. Therefore, when the down-the-hole drilling machine is used, the vortex negative pressure dust removal device for the down-the-hole drilling machine will be used. There are still many problems in the use of the vortex negative pressure dust...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a vortex negative pressure dedusting device for down-the-hole drilling rigs, to solve the above-mentioned background technology tha

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