Down-the-hole hammer device and impact guiding system thereof

Abstract

The invention discloses an impact guiding system of a down-the-hole hammer device. The impact guiding system comprises a tightening mechanism fixed to an inner wall of the down hole, a housing movablyconnected to the front end of the tightening mechanism, a hammerhead axially movably disposed at the front end of the housing, an impact generating mechanism disposed in the housing and configured todrive the hammerhead to perform reciprocate impact motion in an axial direction, a feed mechanism disposed on the tightening mechanism and configured to drive the housing to move in an axial direction thereof, a plurality of aligning blocks distributed on the circumferential outer wall of the housing and abutted against the inner wall of the down hole, and a plurality of aligning cylinders disposed on the circumferential outer wall of the housing and configured to abut against the inner wall of the down hole, the surface, abutted against the inner wall of the down hole, of each aligning blockbeing an arc-shaped surface, the expansion and contraction direction of each aligning cylinder being the radial direction of the housing. Adjustment of the impact direction of the down-the-hole hammer during the operation can be conveniently and quickly achieved, a continuous stable guiding function is always ensured, and impact precision and quality are improved. The invention also discloses a down-the-hole hammer device, the beneficial effects of which are as described above.

Description

technical field [0001] The invention relates to the technical field of mineral drilling, in particular to an impact guide system of down-the-hole hammer equipment. The invention also relates to a down-the-hole hammer device comprising the above-mentioned impact guide system. Background technique [0002] With the development of China's machinery industry, more and more machinery and equipment have been widely used. [0003] In the field of mineral resource drilling, various mining machinery and equipment have been put into production and use, such as exploration machines, shield machines, drilling machines, roadheaders, etc. Taking the down-the-hole hammer as an example, the down-the-hole hammer technology has a wide range of applications and remarkable effects in small-caliber core drilling. benefits and social benefits. Moreover, after several developments and practices, down-the-hole hammer drilling has proved to be an advanced drilling technology for hard and complex ...

AI Technical Summary

Problems solved by technology

However, this method has obvious disadvantages. On the one hand, because the leading end breaks rocks before the drill bit body, it suffers from heavy rock wear, complicated replacement, and increases the cost of excavation; on the other hand, when the leading end wear exceeds a certain When the limit value is exceeded, the leading guiding function is lost, and the drill bit of the down-the-hole hammer deviates, which is prone to pile hole inclination

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