Tunnel periphery hole rock drilling method and stepped rock drilling machine

A drilling method and rock drill technology, which are applied to drill pipes, drill pipes, drilling equipment, etc., can solve the problems of not being able to exit smoothly.

Active Publication Date: 2020-10-27
涪特智能装备(重庆)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a stepping rock drilling machine with a drill retracting device for the stepping rock drilling rig in the prior art that cannot exit smoothly after the drill is stuck, so that the drill bit can be withdrawn smoothly when the drill is stuck.

Method used

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  • Tunnel periphery hole rock drilling method and stepped rock drilling machine
  • Tunnel periphery hole rock drilling method and stepped rock drilling machine
  • Tunnel periphery hole rock drilling method and stepped rock drilling machine

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings, but the present invention is not limited to the scope of the described embodiments.

[0024] see figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 , a stepping rock drill with a drill back device, including a rock drilling main engine 1, a guide rail 2, a drilling rig carrying slide 3, an air leg 14 and an air leg carrying slide 18, and a second A locking device; the drill carrying slide 3 is also provided with a drill retracting device; the drill retracting device includes a locking slider 5 and a drive mechanism 6 with a reciprocating movement output movement, and the drive mechanism 6 is connected to the drill carrying slide 3 and the locking slider 5, the locking slider 5 can only move longitudinally on the drilling rig bearing slide 3; the first locking device is arranged between the locking slider 5 and the guide rail 2 ; The air leg 14 is c...

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Abstract

The invention discloses a tunnel periphery hole rock drilling method and a stepped rock drilling machine. The periphery hole rock drilling method is carried out based on the stepped rock drilling machine and a drill rod with certain deflection, a jacking device of the stepped rock drilling machine is used for jacking the drill rod upwards into an arch in the middle of the drill rod, and a drill bit drills into rock mass at a certain back-bending radian. Preferably, the jacking state is relieved after the drilling depth is 1 m-2 m. The rock drilling machine comprises a rock drilling main machine and a guide rail. A stepped rock drilling structure is formed between the rock drilling main machine and the guide rail. A front end supporting sleeve for supporting the drill rod is arranged at thefront end of the guide rail, a middle supporting sleeve is arranged on the middle section of the guide rail, and the middle supporting sleeve is arranged on the jacking device. The tunnel periphery hole rock drilling method has the beneficial effects that serious over-excavation caused by a linear drilling-in manner of a rock drilling drill bit can be effectively avoided, so that the over-excavation amount is effectively reduced, the tunnel drivage efficiency is improved, and the construction cost is reduced; and the rock drilling machine provides facility guarantee for the periphery hole rock drilling method.

Description

technical field [0001] The present invention is a Chinese patent application number CN2020100728955, the application date is January 20, 2020, and the name of the invention is a divisional application of a stepping rock drill with a drill retraction device. Background technique [0002] Stepping rock drill is a kind of mechanized rock drilling equipment used to replace manual rock drilling in tunnel construction. It is formed by setting a manual shoulder-mounted pneumatic rock drill on a guide rail. It specifically includes a drilling rig carrying slide and an air leg carrying slide that can move on the guide rail. The drilling rig is set on the drilling rig carrying slide, and one end of the air leg is connected to the drilling rig carrying slide; the other end is connected to the air leg carrying slide. There is a locking device between the two slides and the guide rail. When the slide table of the drilling rig is locked, the slide table of the air leg will advance or retr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B15/00E21B19/086
CPCE21B15/003E21B19/086
Inventor 龚岗王立军陈勇王双卯张建堂龚建
Owner 涪特智能装备(重庆)有限公司
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