Electric percussion jackdrill

Abstract

The invention discloses an electric percussion jackdrill. The electric percussion jackdrill comprises an outer box. The front and rear walls of the outer box are fixedly provided with short shafts infront-back symmetry. Fixing devices used for turning the direction of the outer box and fixing the outer box are rotatably connected to the short shafts. The outer box is internally provided with an outer box cavity. An inner box slidably connected to the upper and lower walls of the outer box cavity and extending out of the outer box penetrates through the left wall of the outer box cavity. The angle of the electric percussion jackdrill can be freely adjusted. The electric percussion jackdrill is convenient to use and safer in use and does not need to be supported by hand. Compared with othertypes of jackdrill not requiring hand supporting, the electric percussion jackdrill provided by the invention is small in weight and convenient to carry, manage and repair. A variable frequency motoris adopted. When used for large rocks, the rotation speed of the motor can be adjusted, and the rock drilling efficiency is improved. The electric percussion jackdrill is low in usage noise, free ofexhaust emission, clean, free of pollution and relatively better in working environment.

Description

technical field [0001] The invention relates to the technical field of building cement, clay or stone, in particular to an electric impact rock drill. Background technique [0002] A rock drill is a tool used to directly mine stone. It drills blastholes in the rock formation so that explosives can be put in to blast the rocks, thereby completing the mining of stone or other stone works. In addition, the rock drill can also be converted into a destroyer to break hard layers such as concrete. [0003] At present, the types of rock drills commonly used mainly include four types: pneumatic rock drills, internal combustion rock drills, electric rock drills and hydraulic rock drills, which can basically complete the rock drilling work effectively, but there are still some shortcomings. Large and low energy utilization rate; internal combustion rock drills use gasoline as fuel, and the exhaust gas will pollute the air; hydraulic rock drills are heavy and are generally used in conj...

AI Technical Summary

Problems solved by technology

[0003] At present, the types of rock drills commonly used mainly include four types: pneumatic rock drills, internal combustion rock drills, electric rock drills and hydraulic rock drills, which can basically complete the rock drilling work effectively, but there are still some shortcomings. Large and low energy utilization rate; internal combustion rock drills use gasoline as fuel, and the exhaust gas will pollute the air; hydraulic rock drills are heavy and are generally used in conjunction with hydraulic drilling rigs, with high technical requirements and maintenance costs; electric rock drills are used for hardness Higher rocks are less efficient as the torque cannot be varied

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