pitch of drill

用法例句

At first,a extensional vibration dynamic model of the auger auger axis and drill point was established under the interaction between drill point and soil in the process of digging due to the function of exterior load by taking advantage of the elastic shaft theory and the Hamilton principle.

首先利用弹性杆理论和H am ilton变分原理建立了挖坑机钻头主轴及钻尖在工作过程中由于外激励的作用使钻尖与土壤互相作用而产生纵向振动的动力学模型,同时给出边界条件和初始条件。

Results show that electric thermal power of bit and bit load are the two main drilling parameters of drilling process.

试验表明,钻头电热功率和钻头轴载是决定钻进效果的2个主要工艺参数。

Construction of Mechanics Analysis System for Bearing of Roller Bit -Contact Stress Analysis of the Rollers;

牙轮钻头轴承力学分析系统的构筑——滚动轴承滚子接触应力分析

STUDY OF THE LOAD ON THE JOURNAL BEARINGS OF THE TRICONE BIT BY THE METHOD OF ANALYSIS OF THE RANDOM PROCESS

用随机过程分析方法研究牙轮钻头轴承载荷

THE HIGH-SPEED ROLLER BIT BEARING SURFACE STRENGTHENING TECHNOLOGY

高速牙轮钻头轴承表面强化技术实验研究

cone type roller bearing rock bit

滚柱轴承锥形牙轮钻头

The development and application of a new type rock bit with bearing liner structure;

镶套轴承结构牙轮钻头的开发与应用

Load carrying ability of tapered roller bearing on new high speed rock bit

新型高速牙轮钻头圆锥滚子轴承承载能力分析

TEST STUDY OF A NEW TYPE NON-SEAL SLIDING BEARING CONE BIT

新型非密封滑动轴承牙轮钻头的试验研究

Anti-seizing test of floating bush of cone bit slide bearing

三牙轮钻头滑动轴承浮动衬套的抗胶合试验

Study on Contact Stress of Rock Bit Floating Ring Journal Bearing;

牙轮钻头浮动套轴承接触应力分析研究

Experimental Research on Working Performance of New Floating Ring Journal Bearings

新型牙轮钻头浮动套轴承工作机理试验研究

Finite Element Analysis of Journal Bearing Contact of Tricone Bit

三牙轮钻头滑动轴承副接触有限元分析

drill(ing) head

钻头; 主轴头; 钻床床头箱; 钻削动力头;钻头头部, 钎头

A new type rock bit with bearing liner structure has been developed and tested on the spot.

研制了一种新型的镶套轴承结构牙轮钻头,并进行了现场试验。

Two or more cutters, rotating freely on ball-bearings, are set in the head of the bit.

可在钻头上安装两个或更多的支在滚珠轴承上自由旋转的切削刀具。

radial bearing upper drive sub

上部径向轴承传动接头

radial bearing lower drive sub

下部径向轴承传动接头

end shield bearing

机油滤清器内盖头轴承

For connecting the different type of spindle of drill with the drill bits.

用于不同型号钻机的主轴与钻头的联接。