Deep-hole geological prospecting drill

Abstract

The invention relates to a deep-hole geological prospecting drill which comprises a frequency conversion permanent magnet synchronous motor, a bearing box, a hydraulic oil box, a gyrator, a rotary motor, a water faucet for slurry circulation, a back-up wrench for moving or fixing a drilling rod, and a lifting ring, wherein a center shaft of the frequency conversion permanent magnet synchronous motor is a hollow shaft, the hollow shaft of the motor is communicated with the water faucet, a hollow shaft of the bearing box extends downwards to form the bearing box, a bearing is arranged on the annular outer side of the hollow shaft of the bearing box and is connected with the bearing box, the gyrator is arranged on the bearing extending out of the bearing box in a sleeving manner, a hollow shaft of the drilling rod is communicated with the hollow shaft of the bearing box, and one end of the lifting handle is connected with the two sides of the bearing box. According to the invention, as the frequency conversion permanent magnet synchronous motor is used to directly drive the drilling rod to rotate, a gear reduction box is not needed, the maintenance cost for daily use is reduced, the transmission efficiency is improved, the energy utilization rate is increased, the energy consumption and the carbon emission are reduced, and the pollution to the environment is also reduced.

Description

Technical field [0001] The invention relates to a drilling rig, in particular to a deep hole geological exploration drilling rig. Background technique [0002] Existing geological exploration drilling rigs at home and abroad are rotary, vertical shaft and hydraulic power head type. The basic form is diesel or gasoline engine + gearbox, motor + gearbox, diesel engine or motor + hydraulic pump + hydraulic motor + gearbox to drive the drill pipe Rotary drilling mode, low energy efficiency, small drill stroke (not more than 6 meters), long-stroke vertical drilling is not possible, the gyrator needs to open the hole when lifting the drill, the lifting force of the drilling rig is small, and the lifting is stuck When drilling, the pump cannot be turned on to sweep the hole, and the ability to handle accidents is weak; due to the complexity of deep hole drilling, multi-stage casing is required, and the hole diameter is large. The lifting force, torque and drilling technology of existing...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a deep-hole geological exploration drilling rig, which overcomes the low energy utilization rate of hydraulic drilling rigs, which is only about 50%; During the drilling process, the actual average load is only 20%-30% of the maximum load, and the ratio of the actual output power to the rated power is the load rate. The power factor and motor efficiency of the asynchronous motor drop sharply at low load rates, only 20% % or so, resulting in energy waste from the surface, high maintenance costs, high failure rate, and high noise defects in the daily use of drilling rigs with gearboxes

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