冰下基岩电动机械取心钻具反扭装置设计

发布时间：2018-04-01 04:00

本文选题：反扭装置　切入点：力学模型　出处：《中南大学学报(自然科学版)》2016年03期

【摘要】：对提供大扭矩的反扭装置进行优化设计,并根据钻头实验确定反扭装置设计参数;提出反扭装置设计原则,建立反扭装置力学计算模型,并对不同尖角滑刀式反扭装置进行理论计算,得出其径向压力和扭矩关系曲线,确定最佳的反扭滑刀参数;设计具有六连杆机构的滑刀式反扭装置,根据其结构原理,建立弹簧刚度与径向压力理论计算模型,并对4种刚度弹簧进行优选。研究结果表明:采用刚度为19.61 N/mm的弹簧时,滑刀式反扭装置理论上可提供73~94 N·m反扭矩,满足冰下基岩钻进的需要。
[Abstract]:The optimum design of the reverse torsion device with large torque is carried out, and the design parameters of the reverse torsion device are determined according to the bit experiment, and the design principle of the reverse torsion device is put forward, and the mechanical calculation model of the reverse torsion device is established.In addition, theoretical calculation is carried out for different angle slip knife reverse torsion devices, and the relationship curve between radial pressure and torque is obtained, and the optimum parameters of the reverse torsion cutter are determined, and the sliding knife reverse torsion device with six linkage mechanism is designed, and according to its structure principle,A theoretical model of spring stiffness and radial pressure is established, and four stiffness springs are selected.The results show that when the spring with stiffness of 19.61 N/mm is used, the slip type reverse torsion device can theoretically provide 73 94N m reverse torque, which can meet the need of subglacial bedrock drilling.
【作者单位】：吉林大学建设工程学院;吉林大学极地研究中心;
【基金】：国家重大科研仪器设备研制专项(41327804)~~
【分类号】：P634.4

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