1、

The primary investigation of the sealing system of the high speed roller bit bearing.

高速牙轮钻头轴承密封系统的初步研究.

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2、

Diameter controlling is of great importance in rock bit manufacturing.

保证三牙轮钻头的直径是钻头制造工艺的重点.

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3、

Design calculation process as well as machining technology of rock bit are detailed introduced.

详细介绍了104牙轮钻头的设计计算过程和加工工艺.

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4、

This paper analyses the factors that affect the contact stress of rock bit journal bearing.

文章分析了牙轮钻头滑动轴承接触力学性质的影响因素.

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5、

Drilling with cone ( drag ) bit in the section.

此段地层采用牙轮 ( 刮刀 ) 钻头钻进.

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6、

Bearing quickly losing effectiveness will lead to the manifest reduction of its service life.

轴承的快速失效,导致牙轮钻头寿命的明显降低.

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7、

The motion and force of cone bit is extraordinary complex on bottom hole.

牙轮钻头在井底工作时的运动状态和受力情况是相当复杂的.

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8、

Inthe author synthetically analysed the present situation and development tread of-hole drill home and abroad.

综合分析了国内外牙轮钻机的现状及发展趋势.

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9、

This paper introduces the application of the object-oriented technology in three roller bIt'simulation.

本文介绍了 面向对象 技术在三牙轮钻头仿真中的应用.

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10、

The investigation directions of the high speed roller bIt'sealing are put forward in the future.

针对这些情况提出高速牙轮钻头轴承密封在今后的研究方向.

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11、

This paper introduces gear wheel drill speed system which composed of Siemens PLC and Siemens inverter.

介绍了由西门子PLC和变频器组成的牙轮钻机的调速系统.

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12、

The main failure patterns of the sliding bearing of a cone bit are gluing and abrasion.

牙轮钻头滑动轴承的主要失效形式是胶合和磨粒磨损.

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13、

The failure analysis of the high speed roller bit bearing.

高速牙轮钻头轴承的失效分析.

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14、

Rotating reducer is an important part of blast hole , it holds biggest loads while drilling.

回转机构是牙轮钻机的重要工作部分, 在钻孔作业中承受最大的负荷.

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15、

This paper describes the determination methods on main parameters of blast-hole drill.

介绍了牙轮钻机主参数的选择方法.

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16、

Taking the radial wear allowance of the bearing pair as the monitoring parameter of the bearing working status, and taking the rapid change of the bit speed and the working torque as the alarm signal, the trial of alarm technology for cone dropping is introduced.

文章介绍一种以轴承副的径向磨损量作为轴承工作状态监测参数、以钻头机械钻速和工作扭矩的急剧变化作为预警信号的牙轮脱落预警技术的试验研究成果。

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17、

Influence of Manufacturing Errors on Tooth Row Intermesh of Three Cone Bits

制造误差对三牙轮钻头齿圈啮合的影响

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18、

After a brief description of the design feature and rock breaking mechanism of the disc one cone bit, the rock breaking process, test data and dynamic curves of a rock penetration test on a gritstone are introduced in detail.

在简述盘式单牙轮钻头的结构特点和破岩机理的基础上,详细介绍了这种钻头在资中重二砂岩上进行台架试验的破岩过程、试验数据和动态曲线。

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19、

By means of analyzing the fast feed circuit of the hydraulic system of KY-120 underground rotary drill, the main factors which affect the service life of feed cylinder are revealed and some suggestions are put forward for the improvement of the fast feed circuit.

从分析KY-120型地下牙轮钻机液压系统的快速推进回路入手,指出了影响推进油缸使用寿命的主要原因,并提出了改进意见。

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20、

Analysis and improvement on fast feed circuit of KY-120 underground rotary drill

地下牙轮钻机快速推进回路分析与改进

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