Quick-drill pneumatic hard rock drill

A rock drill and hard rock technology, which is applied in the field of mine rock drills, can solve the problems of inability to use blasting drilling, inconvenient operation, and large volume, and achieve the effect of light volume, easy operation, and small volume

Active Publication Date: 2013-01-30
青岛达邦钻机有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the rock bolt rig uses a pneumatic pick-type main engine, it can only be used to install rock bolts and cannot be used for blasting drilling in mines; moreover, the wind motor needs a four-stage gearbox to reduce the speed, which is large, heavy, and inconvenient to operate.

Method used

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  • Quick-drill pneumatic hard rock drill
  • Quick-drill pneumatic hard rock drill

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Embodiment Construction

[0025] Such as figure 1 , 2 As shown, the impact and cutting combined pneumatic rock drill of the present invention is composed of three independent parts connected by the main engine, the operating valve and the propulsion device; wherein the main engine is composed of a base, a fuselage and a machine head as a whole, and the three parts are composed of bolts 9 Put the gland 8 of the machine head and the base 1 together and fasten them; the basic structure of the main engine is that the machine head consists of the gland 8 and the head box (including the worm gear box cover 5 and the worm gear box body 4) to form the machine head cavity. The rotary sleeve 10 is installed in the head chamber through the angular contact bearing 13, and the shank sleeve 7 is inserted into the rotary sleeve 10; Air intake nozzle 20 is arranged, and intake nozzle 20 communicates with gas distribution valve; Described gas distribution valve is a finned structure, and finned structure is made of va...

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PUM

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Abstract

The invention discloses a quick-drill pneumatic hard rock drill which comprises a host machine, an operating valve and a propulsion unit, which are independent of one another and are connected with one another. An air suction nozzle communicated with an air distribution valve is arranged on a base of the host machine; the air distribution valve is in a fin type structure and consists of a valve body, a valve block and a valve rod; a valve cavity is arranged inside the valve body and is respectively communicated with a front chamber and a back chamber of a cylinder body through left and right air passages; the seesaw-like valve block is installed in the valve cavity through the valve rod; under the action of air pressure, the two ends of the valve block can respectively close or open the left and right air passages to enable a piston rod to move with high frequency; and a rotating device is arranged on a machine head. According to the invention, a new fin type air distribution valve which is flexible in change-over is adopted, so the impact frequency is greatly improved. The rotating device realizes primary transmission by adopting worm-and-gear principle, the transmission ratio is big, and the transmission efficiency is high. The quick-drill pneumatic hard rock drill is small in size, light in weight and convenient to operate, and is applicable for various propulsion modes.

Description

technical field [0001] The invention belongs to the category of rock drilling machines used in mines. Background technique [0002] The pneumatic rock drill used in mines is referred to as a pneumatic drill, which is a percussion drilling machine powered by compressed air. It is typically represented by the 7655 rock drill, which is most suitable for drilling horizontal or inclined horizontal or inclined blastholes on medium-hard or hard (f=8~18) rocks, with a drilling depth of up to 5 meters; it is widely used in Drilling and blasting holes in rock roadway excavation and various rock drilling operations is an important machine tool in stonework projects such as mines, railways, transportation, and water conservancy construction. It weighs 24 kg, and the impact frequency is ≥28 Hz when the working air pressure is 0.5 MPa; the air distribution form adopts a bowl-shaped air distribution valve, which has a reasonable structure and flexible start. The 7655D air leg rock drill ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B1/30
Inventor 赵锦桥鲍伟宋立新刘元同
Owner 青岛达邦钻机有限责任公司
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