abstract

power head is the core component of vibration of rotary core drill, its performance is good or bad directly determine the overall performance is good or bad, and the design theory and method about the power head at home and abroad are very rare, so the vibration of rotating core drill head design theory and method of research is imminent.this article first introduces the vibration rotary core drill head, the working principle, technical characteristics and development status and prospects and then determine the overall parameters of vibration rotary core drilling power head, on the basis of

analyzing the working condition of vibration of rotary core drill, the application of soil mechanics and fluid mechanics is established the complete mathematical model of drilling

resistance moment, under the condition of vibration of rotary core drill head design provides a theoretical basis and key components of vibration turning core drilling power head design process and check the detailed description of the power head has a small volume, move flexible, simple structure, good safety, high performance, low cost, high frequency and amplitude of the adjustable, vibration force is large enough, the smoothness of high characteristic.the head of design for rock and soil drilling and digging engineering technology progress has the important significance.

key words: power head; rotary vibration; core drill; hydraulic motor

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