2) main bearing bolt
主轴承螺栓
1.
The paper,the stiffness coefficient of different diameter main bearing bolt is calculated with FEM methods.
利用有限元程序分析了不同直径的发动机主轴承螺栓预紧过程中刚度系数,将有限元计算结果与公式计算结果进行了对比分析。
2.
The main bearing bolts of diesel engines of DF 7B locomotives often break during operation.
东风7B型机车运用中柴油机主轴承螺栓断裂故障时有发生 ,分析认为主要有 3方面原因 :①螺栓本身的原因 ;②组装过程中产生和遗留的问题 ;③柴油机其他方面的状态对主轴承螺栓产生的影响。
3) bearing
轴承
1.
Technology improvement of withdrawal ring of punched hole die for bearing ribbon cage;
轴承浪形保持架冲孔模退料环的工艺改进
2.
Analysis of grinding method for bearing ring with double grooves;
双沟轴承套圈沟道磨加工方法浅析
4) axletree
轴承
1.
Design on Automatic Nondestructive Examination System of Axletree s Quality and Reseach on Intelligent Appraising;
轴承质量自动化无损检测系统设计及智能评判方法研究
2.
The bottom die with axletree configuration is designed.
依据圆柱斜齿轮几何结构,设计出合理模具工装;将凹模设计成轴承式凹模,当锻件顶出时,凹模自动沿轴向自转,锻件被旋出凹模;采用三维刚粘塑性有限元法对其成形进行数值模拟分析,得到成形过程中的等效应力、应变分布图以及载荷-行程曲线图;模拟结果表明,坯料向齿腔充填时,齿根处等效应力、等效应变值较大;最后充填阶段,齿顶处等效应力、等效应变值较大,载荷也出现陡增现象。
5) bearings
轴承
1.
Improvement of Operating Technology of Bearings for Back-up Rolls on Medium Plate Mill;
中板轧机支承辊轴承使用技术的改进
2.
The Research Actuality and Development Trends of Water Lubricated Bearings;
水润滑轴承的研究现状与发展趋势
3.
Property comparison of PM bronze bearings manufactured in Europe and North America;
欧洲与北美制造的烧结青铜含油轴承性能的比较
6) Bear
轴承
1.
Analysis for Raising Life of Gear and Bear;
提高齿轮、轴承使用寿命的研究
2.
The Design of Heavy Load Bear Lubricate Grease s Lifetime Testing Machine;
重负荷轴承润滑脂寿命试验机的设计
3.
Change the Rubber Bearing into the Oil Bearing and Performance Analysis of It to the Small Turbine;
小型水轮机橡胶轴承改造为油轴承及性能分析
参考词条
补充资料：齿轮轮齿渐开线、螺栓、弹簧autolsp源程序
一、齿轮轮齿渐开渐开线
(defun c:gear(/)
(
setq
p0 (getpoint"输入齿轮中心p0: ")
m (getreal"输入齿轮模数M: ")
z (getint"输入齿轮齿数Z: ")
ha 1
c 0.25
a (/ pi 9)
ra(/ (* (+ z (+ ha ha)) m) 2)
rf(/ (* (- z (+ (+ ha ha) c)) m) 2)
r(/ ( * m z) 2)
rb ( * r (cos a))
ri rb
ang 0
g (polar p0 ang rb)
)
(command "circle" p0 ra)
(command "circle" p0 rf)
(command "circle" p0 r)
(command "line" g)
(while (< ri ra)
(setq
ang ( + ang(/ pi 360))
ri ( / rb (cos ang))
cta ( - (/ (sin ang) (cos ang)) ang)
g(polar p0 cta ri)
)
(command g)
)
(command )
)
二、螺旋源程序
(defun errMsg (s)
(if (/= s "function cancelled") (princ (strcat "\nError: " s)))
; 当命令执行时出现错误
(setvar "cmdecho" ocmdold) ; 例如用户按下了CTRL + C
(setvar "osmode" osmold)
(setq *error* olderr) ; 恢复旧的错误处理
(princ)
)
(defun c:3Dthread (/ radouter threadpitch threadlength threadangle
ptStart innerdiafactor radmid radinner ocmdold osmold 4H 5H 6H h6 g6)
;-------------------------------------------------------------------
; 获取公制外径大小、螺距总长
; 然后计算一系列几何点
; 并且关闭对象捕捉、命令回显
;-------------------------------------------------------------------
(setq 4H (list 0.0015 0.002 0.002 0.0025 0.003 0.0035 0.004 0.005 0.006 0.007 0.008 0.009 0.010))
(setq 5H (list 0.002 0.0025 0.003 0.004 0.0045 0.0055 0.0065 0.0075 0.009 0.010 0.0115 0.0125 0.0135))
(setq 6H (list 0.003 0.004 0.0045 0.0055 0.0065 0.008 0.0095 0.011 0.0125 0.0145 0.016 0.018 0.020))
说明：补充资料仅用于学习参考，请勿用于其它任何用途。