An Improved Hammer Drill

A technology of percussion drilling rig and percussion mechanism, which is applied in percussion drilling, reciprocating drilling rigs, drill bits, etc. It can solve the problems of single impact force release mode and low frequency, so as to improve the impact effect, shorten the cycle and reduce the side tilt Effect

Active Publication Date: 2017-12-01
泾县吉祥纸业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the percussion drill with this structure realizes the piston movement of the hydraulic device through the conversion of the reversing valve. Adjust the switching speed of the hydraulic directional valve to meet the real-time drilling needs

Method used

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Embodiment Construction

[0021] The standard parts used in the present invention can be purchased from the market, and the special-shaped parts can be customized according to the instructions and the accompanying drawings. The specific connection methods of each part adopt mature bolts, rivets, welding in the prior art , pasting and other conventional means, no longer described in detail here.

[0022] refer to Figure 1-7 , a specific embodiment of the present invention comprises drill mechanism 1, and drill mechanism 1 is connected with impact mechanism 2, and impact mechanism 2 is connected with hydraulic mechanism 3, and described drill mechanism 1 comprises base 4, and drill bit 5 is installed on base 4; Impact The mechanism 2 includes an installation box 6, and a hydraulic chamber 7 is arranged in the installation box 6, and two hydraulic cylinders 8 are connected to the hydraulic chamber 7, and the top of the hydraulic cylinder 8 is connected to the bottom of the base 4, and the hydraulic chamb...

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Abstract

The invention discloses an improved percussion drill. The improved percussion drill comprises a drill bit mechanism, wherein the drill bit mechanism is connected with an impact mechanism, and the impact mechanism is connected with a hydraulic mechanism; the impact mechanism comprises a mounting box, a hydraulic chamber is formed in the mounting box, two hydraulic cylinders are connected to the hydraulic chamber, the tops of the hydraulic cylinders are connected to the bottom of a base, pipelines communicated with the hydraulic cylinders are arranged on the hydraulic chamber, bypass pressure-relief pipes are arranged on the side walls of the pipelines, the bottoms of the pipelines are hinged with end covers, two first drive wheels are arranged in the hydraulic chamber, first connecting rods are in shaft connection with the first drive wheels, the tops of the first connecting rods are connected to end covers through first spring bodies, the hydraulic chamber is connected with an elastic film layer through a second spring body, the outer side of the elastic film layer is connected with a hard outer edge, a second drive wheel is arranged in the hydraulic chamber, and a plurality of clamping grooves are uniformly formed in the outer side edge of the second drive wheel. Defects in the prior art can be overcome, and high-frequency impact force with multiple frequencies can be provided.

Description

technical field [0001] The invention relates to the technical field of engineering machinery, in particular to an improved percussion drilling machine. Background technique [0002] At present, percussion drilling tools or impactors are commonly used for rock breaking and drilling of rock formations on the surface and shallow wells, because the impact method can produce obvious crushing effects on rocks, and it is difficult to achieve this by only rotating the drilling method. The purpose of gravel, so the drilling efficiency is extremely low. Chinese invention patent CN 102852455 B discloses a percussion drilling tool, which can achieve the effect of impacting rocks on the formation through the piston movement of the hydraulic mechanism. However, the percussion drill with this structure realizes the piston movement of the hydraulic device through the conversion of the reversing valve. Adjust the switching speed of the hydraulic reversing valve to meet the real-time drilli...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B1/26E21B10/44F15B11/00F15B13/02
CPCE21B1/02E21B10/44F15B11/00F15B13/02
Inventor 张立水
Owner 泾县吉祥纸业有限公司
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