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Impact hammer for hydraulic drilling rig

A technology of hydraulic drilling rig and impact hammer, which is applied in drilling equipment, earthwork drilling, driving devices for drilling in boreholes, etc., and can solve the problems of fast impact frequency and cost reduction

Active Publication Date: 2015-03-04
长沙天和钻具机械有限公司
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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 overcome the deficiencies of the prior art and provide a hydraulic drilling rig impact hammer that solves the problem of bolt support under different surrounding rock roof conditions, has a fast impact frequency, greatly reduces costs, and improves efficiency.

Method used

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  • Impact hammer for hydraulic drilling rig
  • Impact hammer for hydraulic drilling rig
  • Impact hammer for hydraulic drilling rig

Examples

Experimental program
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Effect test

Embodiment Construction

[0013] Below in conjunction with accompanying drawing, will illustrate the specific embodiment of hydraulic drilling rig impact hammer.

[0014] Such as figure 1 and figure 2 As shown, a hydraulic drill impact hammer includes a limit group 1, a spool 12, a front base 2, a piston 4, a front buffer 5, a rear buffer 6 and a rear base 3, and the limit group 1 is installed On the front base 2, one end of the front base 2 is installed on the rotary base of the power head of the hydraulic drilling rig, and the other end is clamped with the rear base 3, and the piston 4 is installed on the front base 2 and the In the inner cavity of the rear base 3, the front buffer 5 is installed on the front base 2, the rear buffer 6 is installed on the rear base 3, and the limiting group 1 includes a valve Body and valve core 12, the valve body is provided with an oil inlet 11 and an oil outlet 13, the valve core 12 is installed in the valve body, a first oil is provided between the upper end of...

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Abstract

The invention discloses an impact hammer for a hydraulic drilling rig. The impact hammer comprises a limiting group, a valve element, a front substrate, a back substrate, a piston, a front buffer and a back buffer, wherein the limiting group is arranged on the front substrate; the valve element is arranged in the limiting group in a sleeving manner; one end of the front substrate is arranged on a power head rotating substrate of the hydraulic drilling rig, and the other end of the front substrate is provided with the back substrate in a clamping manner; the piston is arranged in inner cavities of the front substrate and the back substrate; the front buffer is arranged on the front substrate; the back buffer is arranged on the back substrate; the valve element and the piston are provided with corresponding grooves to form corresponding stress areas. The impact hammer has the advantages of simple structure, high impact frequency, large impact power, wide adaptive surface, long service life and the like and can be used on a hydraulic anchor drilling rig, while in rock-soil anchorage engineering, the drilling rig meets broken rock, sand and gravel most, and an impact rotary drilling method is one of the optimal choices.

Description

technical field [0001] The invention relates to an impact hammer of a hydraulic drilling machine. Background technique [0002] Hydraulic rock bolt rigs are mainly used in power station, highway and railway and other mountain slope treatment anchor cable reinforcement, tunnel pipe shed advance support, foundation pit cable-stayed pile anchor cable, anti-floating anchor rod, ground source heat pump well, roadbed reinforcement, hydropower Engineering dam foundation and dam body anti-seepage treatment, drainage holes, blast holes in mines and quarries, micro pile holes and other projects. Most of the power heads of the old-style anchor drilling rigs only have the function of rotation, and the supporting equipment includes air compressors, impactors, and pipe drilling tools. And other local hard rock formations, whose hardness exceeds the adaptability range of the rotary rock bolter, causes the use of the rotary rock bolter to be restricted and reduces the efficiency. Content...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B4/14
CPCE21B4/14E21D20/003
Inventor 吉伟
Owner 长沙天和钻具机械有限公司
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