论文部分内容阅读
二 輪齒的固定弦長及测量用齒高的計算 (1)直齒,螺旋齒,及人字齒圓柱形齒輪的輪齒固定弦长及测量用齒高固定弦也应当在法向截面内量取的。对於直齒輪,則法向截面卽为端截面。根据[圖三]可得直齒、螺旋齒、及人字齒輪的輪齒固定弦長S_(xn)’为 S_(xn)′=m_n(π/2cos~2α_(on)±ξn sin 2α_(on))…………(21)式中:m_n—为法向模數。m_n=m_3ccsβд(βд为分度圓上的螺旋角) α_(nn)—为基本齒条在法向截面内的嚙合角tan α_(on)=an α_(os) cos βдα_(os)—基本齒条在端面内的嚙合角。ξn—法向截面內的修正係數。
Fixed teeth chord length and measurement of tooth height calculation (1) Straight teeth, helical teeth, and herringbone cylindrical gear teeth fixed chord length and measuring teeth with high fixed chord should also be within the amount of normal section Take. For spur gears, the normal section 卽 is the end section. According to [Fig. 3], the fixed chord length S_ (xn) ’of the spur teeth, the helical teeth, and the herringbone gear can be obtained as follows: S xn = m_n π / 2cos ~ 2α on ± ξn sin 2α_ on)) ............ (21) Where: m_n- is the normal modulo. α_nn - is the meshing angle of the basic rack in the normal section tan α - = α α (os) cos β - α - (os) - basic tooth The angle of engagement of the strip in the end face. ξn-correction factor in normal section.