煤岩钻孔水射流自旋转喷头限速研究  

Speed limitation study on water jet nozzle drilling in coal and rock

作　　者：张芳[1] 朱合华[1] 李成全[2] 

机构地区：[1]同济大学地下建筑与工程系,上海200092 [2]辽宁工程技术大学力学与工程科学系,辽宁阜新123000

出　　处：《辽宁工程技术大学学报（自然科学版）》2005年第2期205-207,共3页Journal of Liaoning Technical University (Natural Science)

基　　金：上海市重点学科(岩土工程)资助项目(081401)

摘　　要：采用理论推导结合实验的方法,首先借鉴发电机原理,建立自旋转喷头稳态运行时电势、转矩和功率三个平衡方程,并以此设计了自旋转喷头电磁限速装置,将其用在煤层钻孔方面,确保了旋转射流在不同输入功率下,具有良好的打击成型性能,然后建立了影响旋转喷头转速的各主要因素之间的关系式,并讨论转速与射流功率之间的关系,最后做出实物样品,经现场试用后达到预期效果。The rotational speed control of auto-rotate water jet nozzle, which is a critical problem in need of solution, is considered in this paper. In this paper, using the principles of the generator and the theory of electric-magnetism, the equations of electric potential, torque and power are set up when the nozzle is working under stable state. Based on these equations, the limitation fit is designed and the relation between rotational speed and water jet power is obtained. All these results will certainly benefit the practical application.

关 键 词：自旋转喷头 转速 电磁限速 射流功率 

分 类 号：O347.6[理学—固体力学]