A mining hand-held double-row seven-star wheel full hydraulic drilling rig

Abstract

The invention discloses a mining hand-held fully-hydraulic drilling machine with a double-row seven-star wheel and relates to the technical field of mining drilling machine technologies. The mining hand-held fully-hydraulic drilling machine with the double-row seven-star wheel comprises a left end shell, a right end shell, a coupling, a drilling bit, a drilling rod, a speed increaser, a static balance hydraulic motor and a combination valve. Hydraulic oil is infused into the static balance hydraulic motor through the combination valve to enable the static balance hydraulic motor to rotate; the combination valve combines functions of speed regulation, reversing and unloading, the changes of the rotation direction and speed of the static balance hydraulic motor can be achieved by adjusting the combination valve, and the combination valve is provided with the function of unloading when pressure of the static balance hydraulic motor exceeds a safe value; and an output shaft of the static balance hydraulic motor is connected with the speed increaser, and thus the purpose that the drilling rod connected with the coupling is driven to rotate by the speed increaser so as to drive the drilling bit is achieved. The drilling machine has the advantages that output torque is large, force is balanced, manual control is facilitated, fully-hydraulic operation is achieved, and speed regulation and reversing can be conducted.

Description

technical field [0001] The invention relates to the technical field of mining drilling rigs, in particular to a mining hand-held double-row seven-star wheel full hydraulic drilling rig. Background technique [0002] Mining hand-held drilling rigs are mainly used in coal mine tunneling, blasting holes for caving, bolt holes, gas drainage and detection holes, water exploration holes, water injection holes, coal and rock layer reinforcement or grouting holes for fire prevention and other small diameter projects . [0003] Originally, small hand-held drilling rigs used in mines in my country included coal electric drills and air-coal drills. Since mine hand-held drills are used in coal mines and in environments with explosive mixed gases such as methane and coal dust in the surrounding medium, from a safety point of view, coal electric drills exist. Potential safety hazards: Pneumatic coal drills have small drilling capacity, large volume, high noise, large dust and harsh workin...

AI Technical Summary

Problems solved by technology

[0014] The technical problem to be solved by the present invention is to provide a mine-used hand-held double-row seven-star wheel full-hydraulic drilling rig to overcome the potential safety hazards of coal electric drills in mining electric drills. The work produces a lot of dust, the working environment is harsh, and it is difficult to manually operate the wind coal drill. However, the small hand-held mining rig that uses hydraulic pressure as the power source has unbalanced force on the motor, and it is not easy to hold the drill rod during manual operation. very difficult problem

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