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Rotary impact type rock drilling machine and double-layer drilling rod mechanism

A technology for rock drilling rigs and double-layer drill pipes, which is applied to percussion drilling, reciprocating drilling rigs, and drill pipes. The effect of impact energy

Inactive Publication Date: 2014-05-14
HENR TECH GUANGXI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There are also some top percussion hydraulic rock drilling rigs that use double-layer casings in order to reduce the deflection of the blast hole, such as Coprod from Atlas Copco, but it is only an improvement on the top percussion hydraulic rock drilling rig, and the effect has not changed substantially

Method used

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  • Rotary impact type rock drilling machine and double-layer drilling rod mechanism
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  • Rotary impact type rock drilling machine and double-layer drilling rod mechanism

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Embodiment Construction

[0015] Below in conjunction with accompanying drawing, the present invention will be further described:

[0016] The vibration excitation mechanism 1 adopted in the present invention can adopt the impact mechanism involved in the Chinese patent application number 201010596120.4 and the title of the invention "a kind of impact hydraulic rock drill". The vibration mechanism 1 adopted in this embodiment consists of a first hydraulic motor 14, an excitation box 16, a first active eccentric shaft 15, a first driving gear 18, a first driven gear 22, a first eccentric block 17, a second The eccentric block 21, the second eccentric shaft 20 and the connecting rod 2 are formed, and two or four or more paired eccentric shafts and eccentric blocks can also be installed as required. In the excitation mechanism, two identical eccentric shafts are arranged side by side on the excitation box to form an eccentric group. The same eccentric block and gear are installed on the eccentric shaft. T...

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Abstract

The invention discloses a rotary impact type rock drilling machine and a double-layer drilling rod mechanism. The rotary impact type rock drilling machine comprises an excitation mechanism, a rotating mechanism and a flushing mechanism, wherein the rotating mechanism comprises a rotary box body, a driving gear, a rotary gear and a rotary coupling sleeve; the rotary gear is tightly sheathed on the rotary coupling sleeve and meshed with the driving gear; a coupling link is arranged in the rotary coupling sleeve, the rotary coupling sleeve is connected with the double-layer drilling rod mechanism, an impact drilling column which is positioned by a guide shaft bushing is arranged in an outer-layer rotating drilling pipe of the double-layer drilling rod mechanism, a clamping lock for connecting the coupling link is arranged at the top of the inner-layer impact drilling column, an impact head connected with the impact drilling column is arranged in a drilling bit coupling sleeve, and a drilling bit positioned below the impact head is connected with the drilling bit coupling sleeve through front coupling. As the impact head is positioned at the bottom of the double-layer drilling rod mechanism and acts on the drilling bit directly, the impact energy generated by the rotary impact type rock drilling machine can not be weakened along with the increase of the length of a drilling rod, the rotary impact type rock drilling machine has high efficiency of a hydraulic rock drilling machine and also has the advantages of good transfer of impact energy and straight drilling of a downhole drill; furthermore, the high impact energy can be easy to generate, and large-aperture drilling and deep hole rock drilling can be realized.

Description

technical field [0001] The invention relates to the technical field of construction machinery and mining machinery, in particular to a rotary percussion rock drilling rig used for generating shock wave pulses in the direction of a drilling tool. Background technique [0002] A rock drill is a kind of mechanical equipment used for rock drilling. At present, the rock drilling equipment on the market mainly includes pneumatic down-the-hole drilling rigs and top impact hydraulic rock drilling rigs. The down-the-hole hammer of the impact mechanism of the pneumatic down-the-hole drilling rig is at the bottom, which can transmit impact energy well. It has the advantages of simple structure, easy operation, and straight drilling. However, it has high energy consumption, low rock drilling speed, and fast wear of drilling tools. The impact mechanism of the hydraulic rock drill is located at the top, and the impact energy is transmitted by hitting the drill pipe. Because of its high en...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B1/28E21B6/02E21B17/00
Inventor 唐忠盛
Owner HENR TECH GUANGXI CO LTD
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