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1)  nibbed bolt
尖头螺栓
2)  mush-room-head nib bolt
菌头尖头螺栓
3)  T-head bolt with double nib
尖头T形螺栓
4)  bolt point
螺栓尖
5)  double-headed bolt
双头螺栓
6)  decollation bolt
断头螺栓
1.
By analyzing the feasibility and the effect factor to internal boring repair craftwork of decollation bolt in certain ship main engine cylinder, the paper offers practicably feasible craftwork scheme, obtaining favorable repair result.
通过对某轮主机缸体断头螺栓镗孔修理的可行性、施工影响因素的分析,提出了实际可行的工艺方案,获得了良好的施工效果。
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。
参考词条