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Method, device and holder for installing a drill bit

A retainer and drill bit technology, applied to drilling equipment and methods, drill pipes, drilling tools, etc., can solve problems such as increasing the risk of failure and increasing the risk of downtime

Active Publication Date: 2021-10-26
EPIROC ROCK DRILLS AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These solutions usually use a magazine and complex equipment to manipulate the movement of the magazine when changing
A disadvantage of known solutions is that they generally comprise many moving parts, which leads to an increased risk of downtime due to an increased risk of failure of these moving parts in the very harsh and dusty environment in which they are used

Method used

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  • Method, device and holder for installing a drill bit
  • Method, device and holder for installing a drill bit
  • Method, device and holder for installing a drill bit

Examples

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Embodiment Construction

[0040] The invention will now be described in detail with reference to the accompanying drawings, in which exemplary embodiments are shown. However, the invention should not be considered limited to the described embodiments. In the following description, corresponding features and details have the same reference numerals.

[0041] figure 1 A device 21 for rock drilling is shown comprising a first arm 9 freely movably attached to the base unit 7 and a second arm 9 freely movably attached to the first arm 9 . A drilling unit 11 . A freely movable attachment refers to a coupling that allows movement in a number of different directions and / or about a number of axes of rotation. according to figure 1 In the embodiment shown in , the first arm 9 is attached to the base unit 7 by means of the first joint 2 . The first joint 2 is arranged such that the first arm part 9 can rotate about the rotation axes A1, A2 and A3. figure 1 The axis A2 is shown extending perpendicular to the...

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PUM

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Abstract

A method (100), apparatus (21) and retainer (17) for rock drilling are described herein. The method (100) comprises the steps of: directing a drill rod (3) arranged at a first drilling unit (11) by using a first arm (9) towards a fixedly arranged position adapted to hold at least two drill bits The drill bit (1) in the holder (17) is aligned (101) so that the axis of rotation (Ab) of the drill rod is substantially coincident with the axis of rotation (Ak) of the drill bit (1), wherein the first drilling unit ( 11) Free movement relative to the holder (17); shift (103) the drill rod (3) axially forwards towards the drill bit (1) to the first position of the drill rod (3) allowing the installation of the drill bit (1) ; installing (105) the drill bit (1) on the drill rod (3); and shifting (107) the drill rod (3) axially backwards to a second position in which the drill bit (1) has been removed from the holder (17).

Description

technical field [0001] The invention relates to equipment that may be used, for example, in the mining industry. More specifically, the present invention relates to a method and a device for mounting a drill bit suitable for rock drilling, for example rock drilling in combination with tunneling, and to a holder which can be used for such mounting. Background technique [0002] When tunneling or working in a mine, holes are drilled in order to place explosives into the holes. Mountain drilling is usually carried out using machines specially designed for mining and tunneling. The number of drill holes hit by a round of drilling can vary depending on the bedrock. When tunneling through harder rock, it may be necessary to drill as many as 70 holes for blasting. The hard bedrock causes the bit to wear out quickly during drilling and needs to be replaced to be reground. The drill bit can usually only drill 1 or 2 holes before it needs to be replaced. [0003] In the past, rep...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B19/18E21B19/14
CPCE21B7/025E21B12/00E21B19/18E21B19/14
Inventor 约翰·恩布卢姆
Owner EPIROC ROCK DRILLS AB