Handheld ultrasonic drilling machine

Abstract

The invention belongs to the field of exploration tools, and discloses a hand-held ultrasonic drilling machine. The rotating shaft of the motor is connected to the output shaft through a coupling, and a conductive slip ring is fixed on the output shaft. The end is connected with the flange on the ultrasonic transducer, and the control switch controls the rotation speed of the motor and the frequency of the ultrasonic transducer. The present invention uses high-frequency (above 20,000 Hz) vibration combined with rotation to carry out drilling and sampling, and the high-frequency vibration force generated by the ultrasonic transducer acts on the drill bit, so that the drill bit can drill into the formation in the manner of cutting, shearing and breaking At the same time, the vibration frequency of the transducer is close to the natural frequency of the rock to achieve resonance drilling. Ultrasonic hand-held drilling rigs can obtain higher mechanical penetration speed under lower drilling pressure, which can greatly improve the drilling efficiency in medium-hard rock, reduce the labor intensity of operators, and reduce work costs.

Description

technical field [0001] The invention belongs to the field of exploration tools, in particular to a hand-held ultrasonic drill. Background technique [0002] Hand-held drilling rig is a small and portable sampling drilling equipment suitable for inconvenient areas such as mountains, transportation and energy. Sampling with this drilling rig can replace traditional sampling methods such as manual excavation, trench exploration and well exploration, and has been widely used for its advantages of simple operation, convenience, high efficiency, and less vegetation damage. [0003] Ultrasonic assisted processing technology is a very effective special processing method used in the industrial field, especially suitable for processing various hard and brittle materials such as glass, ceramics, quartz, diamond, silicon, etc., and has been widely used. The ultrasonic-assisted processing technology formed by combining ultrasonic processing with traditional cutting processing can effect...

AI Technical Summary

Problems solved by technology

[0005] 1. In the process of conventional drilling, when drilling in medium and hard rock formations, it is necessary to provide a large bit pressure, and the operator needs to press the hand-held drilling rig vigorously. It is difficult to apply the required pressure manually, and the work efficiency is low;

[0006] 2. In the process of conventional drilling, it is often accompanied by problems such as drilling inclination, which has a great impact on the quality of the core and affects the original shape of the rock sample;

[0007] 3. During the conventional drilling process, due to the high wear resistance of the rock, the drill bit wears quickly, resulting in a high drilling cost

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