Multifunctional hammer drill

A percussion drilling rig, multi-functional technology, applied in percussion drilling, reciprocating drilling rigs, drilling equipment, etc., can solve the problems of low work efficiency, time-consuming and labor-intensive drilling in hard rock formations

Active Publication Date: 2009-05-20
SHANGHAI JINTAI ENG MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention aims to solve the defects of low working efficiency, time-consuming and labor-intensive dril...

Method used

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Examples

Experimental program
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Embodiment Construction

[0025] see figure 1 , figure 2 and combine image 3 , as shown in the figure: a multifunctional percussion drilling rig, which includes a hydraulic crawler chassis 1, a control room 2, a drilling rig main engine 3 and an upright mast system 4 are arranged on the chassis 1, a steel wire rope 5 is arranged on the mast system 4, and a top is provided There is a crown block 6, which is connected to the drill pipe 7 through the wire rope 5 driven by the hoist and the fixed frame 401. The drill pipe 7 is a multi-layer hollow sealed telescopic drill pipe. The lower part of the drill pipe 7 is connected with a working device 12. There is a slagging faucet 8 for reverse circulation slagging or a slag collecting cylinder 14 connected to the lower part for positive circulation slagging, which also includes:

[0026] The power unit 11 of the working device 12 is arranged on the chassis 1 and powered by the main engine 3 of the drilling rig;

[0027] A number of flexible pipelines 8 an...

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Abstract

The invention relates to a multifunctional percussion drill which is mainly used for drilling into basement rocks, comprising a chassis control chamber, a host machine of a drilling machine and a mast. The mast is provided with a mounting bracket, a wire rope, and an overhead travelling crane and a multilayer hollow sealed telescopic drill rod which are arranged at the top of the mast. The mast body is provided with a deslagging cock and comprises a power device of an impacting device arranged on a chassis, a plurality of pipelines and a pipeline winch fixed on the mast, wherein, the pipelines are communicated with the inner cavity of the drill rod through the winch device and can extend along with the extending of the drill rod; the mast body also comprises at least one power transmitting pipeline communicated with the power device of the impacting device, at least one pollution discharging and deslagging pipeline, one positive pressure maintaining pipeline and a power head arranged on the mast of the drill, wherein, the impacting device communicated with the power transmitting pipeline is connected at the bottom part of the drill rod at the innermost layer by transition joints, and the power head drives the drill rod to force the impacting device to swing for working. The drill can effectively improve the working efficiency, conveniently and fast transform functions, and walk.

Description

technical field [0001] The invention relates to an underground construction machine, in particular to a pile foundation construction equipment mainly for drilling bedrock. Background technique [0002] In underground construction, hard rock layers are often encountered. One of the most commonly used drilling methods is wire rope impact, which is only suitable for medium-hard rocks. The efficiency is extremely low, the energy consumption is large, the hole quality is poor, and complex projects cannot work; Second, there are rotary table or overhead power head drilling rigs, which use roller cones or hob bits for drilling, mainly relying on rotation and drilling tools (including weighted blocks) to cut rocks. To complete this work, the rotation speed of the drilling rig should not exceed one minute. Several turns to more than ten turns, the drilling speed is slow, resulting in low work efficiency. Moreover, the drill pipe of this kind of drilling rig adopts segmented flange c...

Claims

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Application Information

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IPC IPC(8): E21B7/02E21B1/00
Inventor 林坚
Owner SHANGHAI JINTAI ENG MACHINERY
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