Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中国有色金属学报

ZHONGGUO YOUSEJINSHU XUEBAO

第6卷    第3期    总第20期    1996年9月

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文章编号:(1996)03-14-4
卡盘的若干设计计算问题
徐祖宽

(中南工业大学地质系,长沙410083)

摘 要: 以“夹持系数”取代传统的摩擦系数;对卡盘的主要零件重新进行了受力分析,推导出能满足各零件设计计算之用的计算公式;提出了提高卡盘夹持能力的有效措施:(1)减小卡瓦和卡圈斜面之间的摩擦系数;(2)提高卡瓦和主动钻杆之间的夹持系数。

 

关键字: 钻机卡盘 相当摩擦系数 夹持能力

SEVERAL PROBLEMS ON THE DESIGN
AND CALCULATION OF THE CHUCK
OF DRILL MACHINE
Xu Zukuan

Department of Geology, Central South University of Technology, Changsha 410083

Abstract:A conception of gripping coefficient used to replace traditional friction coefficient has been introduced. Based on a new mechnical analysis for main parts of the chuck, some more reasonable formulae that can be used to design and calculate the chuck have been derived, and effective measures to raise the gripping capacity of the chuck were proposed, which include: (1) decrease friction coefficient of oblique planes between the gripper and the ring; (2) increase gripping coefficient between the gripper and the drill pipe.

 

Key words: drilling chuck analogical friction coefficient gripping coefficient gripping capacity

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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