牙轮钻头工作力学（英文版）

PREFACE
FOREWORD
Chapter 1　Introduction
1.1 A brief history and prospect of the development of rock bit
1.2 The progress of t he research an d design of rock bit
Chapter 2　The Geometry of The Rock Bit
2.1 The traditional geometry of rock bit
2.2 The fundament al equation s of the modern geometry of rock bit
2.3 The accurate calculation for t he clearance between the adjacent cones
2.4 The transitional zone at the lower en d of bore-hole
2.5 The geometry of the lower part of bit leg
Chapter 3　The Kinematics of The Rock Bit
3.1 The traditional kinematics of rock bit
3.2 The fundament al equation s of the velocity of bit teeth
3.3 The rot at ion of the roller
3.4 The number of teeth contacting with the bottom-hole
3.5 The track of teeth on the bottom-h ole and the lateral scraping of bit
3.6 The acceleration of bit teeth
Chapter 4　The Bearing System of The Rock Bit
4.1 The friction couple of t he bearing
4.2 The analysis for the bearing wear
4.3 The seal ring
4.4 The pressure balancing and lubricant reservoir compensating system PBLRCS
Chapter 5　The Experimental Study on The Interaction Between Bit and Rock
5.1 The axial penetration test by t he single tooth
5.2 The drilling test by t he w hole bit
5.3 The simulation test of the crater-forming process by t he bit teeth
5.4 The advanced approach for digitalized measurement and analysis of the bottom-hole pattern
5.5 The side cutting of t he bit an d the w ell-bore deviation
Chapter 6　The New Methodology for The Rock Bit Design
6.1 The main contents of the new design method
6.2 The distinct feature of the new design method
References