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对轴承密封，牙轮锁紧，喷嘴安装等也有新的意向。There is also a new Intention on bearing's seal, roller's locking and nozzle's mounting.

本文阐述了三牙轮钻头滑动轴承载荷的测试方法。A method of determining the load on journal bearing of three-cone bit is described in this paper.

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在实验的基础上，利用两种数学模型对牙轮钻机的实测参数进行分析。The drilling parameters of three-cone blast-hole drill are analyzed with two mathematical models.

因此应针对不同性质的岩石设计符合其破岩特点的单牙轮钻头。As a result it is necessary to design new type of one-cone bit according to the quality of the rock.

本文介绍了面向对象技术在三牙轮钻头仿真中的应用。This paper introduces the application of the object-oriented technology in three roller bit simulation.

另外，对于应用于牙轮钻的O型密封圈进行了分析和计算。We can also carry out the analysis and calculation on the O-ring seal, which is used in the cone bit as well.

对牙轮和牙齿分别进行了装配，为三维啮合间隙计算做了充分准备。Assemble inserts and cones respectively, and prepare for calculating 3D engaging distance of tri-cone rock bit.

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首钢矿业公司水厂铁矿Y-55牙轮钻原系统回转部分为两台直流电机串联。Gyre control of Y-55 auger was performed by two motors in series in Water Plant of Shougang Mining Corporation.

本文介绍对钻头的牙轮和牙掌采用氮基气氛渗碳工艺的试验与应用情况。This paper depicts the experiment and application of prepared nitrogen base gas carburizing on bit cones and legs.

牙轮钻头的牙轮都有镶嵌或铣切的牙齿，但以往研究牙轮运动学的文章，往往把牙轮当作无齿锥体来研究。Cone-shaped wheels on the rock roller drill invariably have cutting teeth, which are either inlaid or shaped by milling.

由于牙轮钻头在信号采集、处理等方面的优势，现阶段随钻地震测量主要采用的是牙轮钻头。In the present SWD survey, roller-cone bit is widely used because of its advantages in signals recording and processing.

本文对YZ-55型牙轮钻机的动态轴压和扭矩实测数据进行了处理。In this paper, the measured data of the dynamic axial pressure and torsion of YZ-55 blast-hole drill have been processed.

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通过大量的现场试验，得出三牙轮钻头三喷嘴优化组合的经验比值。The experiential ratio of optimum combination of three nozzles on tri cone bit is obtained based on many field experiments.

前后两排旋向相反牙齿的设置可减少牙轮的轴向载荷，延长牙轮钻头轴承的寿命。The design of contrary turning with two lines of teeth can reduce the teeth axial load and expand life of tooth bit bearing.

在4个基本假设的前提下，利用刚体运动的合成理论分析了牙轮钻头超顶布置时，牙轮在井底的运动规律。Based on 4 assumptions, and by using the theory of rigid motion, the motion pattern of the overhung cones of a bit is analyzed.

按此设想研制成功了CZT-1型牙轮钻进参数自动调节装置。According to the principle mentioned above, a Model CZT -1 autocontrol device for rotary drilling has been successively developed.

因而较真实地揭示了牙轮的运动规律，对于设计牙轮钻头和进一步研究牙轮钻头的工作力学都有意义。These expressions of kinematic parametres are expected to be helpful for design work and further research on its working mechanics.

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牙轮钻机钻凿的岩层是随机分布、错综复杂的，因而钻进过程难以定义。The rock stratum drilled by a rotary drill is random distributed and complicated, so it is difficult to define the drilling process.

本文从尖角铣刀割圆出发，拟出了一套钻头牙轮直铣齿的计算公式。A set of calculating formulae for vertical milling teeth of drilling bit cones is derived herein from cutting rows with angle cutters.

在牙轮钻头中成功应用单金属浮动金属密封结构的关键在于控制密封端面之间的接触压力。How to control the normal stress between sealing faces is a critical factor while using metal face seals for rolling cutter rock bits.