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Down-the-hole drill

A technology for down-the-hole drilling rigs and drill pipes, which can be used in drilling equipment, earthwork drilling, support devices, etc., and can solve problems that affect the stability of drilling and sloshing

Inactive Publication Date: 2018-11-06
南京维来机械制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Pneumatic down-the-hole drilling rigs have been used for medium and deep hole drilling, and there is shaking from time to time, which affects the stability of drilling

Method used

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  • Down-the-hole drill

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Embodiment Construction

[0022] Embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0023] A kind of down-the-hole drilling machine of the present invention, comprises support column 1 and drilling rod 2, wherein: support column 1 comprises upper support slide block 21, middle fixed block 22 and lower end fixed end 23, and lower end fixed end 23 is fixed on the ground, and lower end The fixed end 23 is integrated with the support column 1, and the middle fixed block 22 is fixed on the middle part of the support column 1. The middle fixed block 22 is provided with a ring grip 22a, and the ring grip 22a is caught on the rod body of the drill pipe 2. The ring grip 22a makes the drill pipe 2 slide up and down, but cannot shake left and right. The upper support slider 21 is provided with an upper gripper 21a, and the upper gripper 21a is caught on the top of the drill pipe 2 and is fixedly connected with the top of the drill pipe 2....

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Abstract

The invention discloses a down-the-hole drill which comprises a supporting column and a drilling rod. The supporting column comprises an upper supporting sliding block, a middle fixing block and a lower-end fixing end; the lower-end fixing end is fixed to the ground; the lower-end fixing end and the supporting column are of an integral part; the middle fixing block is fixed in the middle of the supporting column, and an annular gripper is arranged on the middle fixing block and arranged on a rod body of the drilling rod in a gripping mode; the annular gripper enables the drilling rod to slideup and down but not swing leftwards and rightwards; an upper gripper is arranged on the upper supporting sliding block, arranged at the top of the drilling rod in a gripping mode and fixedly connectedwith the top of the drilling rod; and a drill bit is arranged on one side of the drilling rod, the lower end of the drill bit is sharp and directly faces the ground needing to be drilled, and the drill bit is fixed to the drilling rod through a sliding mechanism.

Description

technical field [0001] The invention relates to the technical field of drilling, in particular to a down-the-hole drilling machine. Background technique [0002] Down-the-hole drilling rigs play an extremely important role in mine production. [0003] According to the characteristics of drilling rigs, the classification methods of drilling rigs are also different. Here are two points: [0004] 1. According to different places of use, down-the-hole drilling rigs can be divided into two categories: underground and open-pit. Underground down-the-hole drilling rigs can be divided into self-propelled and non-self-propelled according to whether there is a walking mechanism; there are many open-pit down-the-hole drilling rigs in my country, most of which are self-propelled. [0005] 2. According to different hole diameters, down-the-hole drilling rigs can be divided into light down-the-hole drilling rigs (diameter 80~100mm), medium-sized down-the-hole drilling rigs (diameter 130~...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B15/00
CPCE21B15/00
Inventor 王东
Owner 南京维来机械制造有限公司