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索氏抽提儀因而加工蝸輪的刀具尺寸就不同

發布時間:2016-12-20 08:39:00 點擊:

就不同,因而加工蝸輪的刀具尺寸就不同,這樣蝸輪滾刀的數目將增多。索氏抽提儀為了限 制滾刀數量,對每一個模數,規定了標準分度圓直徑 #! ( 見表 +,5),而將直徑 #! 與模數 ! 的比值用 % 表示,% 稱為蝸桿的直徑系數,則 % ’ #! ! ’ !"! !012"! ’ "! 012"! (+,**) 當模數 ! 一定時,直徑系數 % 增大、蝸桿直徑 #! 增大、蝸桿剛度增大,另外 !"# 蝸桿蝸輪機構 ($! 直徑系數 ! 增大、導程角!! 增大、效率"降低,故設計時應全面考慮。 表 !"# 蝸桿分度圓直徑與其模數的匹配標準系列 " ! !"#$ !"% # #"$ &"!$ ’ $ %"& ( !) #! !( #) ##"’ #) #( (!() ##*’ (#() &$*$ (##*’) #( (&$*$) ’$ (#() &$*$ (’$) $% (&!*$) ’) ($)) +! (’)) $) (%&) ,) ($)) %& (()) !!# (%&) () (!))) !’) (+!) ,) (!!#) !%) 注:摘自 -. !))($—((,括號中的數字盡可能不采用。 


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