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索式提取器心平底從動件盤形凸輪的輪廓曲線

時間:2020-04-18 18:14     瀏覽:

此即為凸輪實際輪廓曲線的方程式。 圖 $%&’ 對索式提取器心平底從動件盤形凸輪的輪廓曲線設計 !" 擺動滾子從動件盤形凸輪機構 圖 $%&2 所示為一擺動滾子從動件盤形凸輪機構。如圖建立 ’#$ 坐標系,當 從動件處于起始位置時,滾子中心處于 ") 點,從動件與連心線 ’,) 之間的夾角 為#) ,當凸輪轉過!角后,從動件擺過# 角,此時滾子中心將處于 " 點,其坐標 ( #,$)為 # ! ’( / +( ! -*+,! / .*+,(# (#) (!) $ ! ,( / )( ! --.*! / .-.*(# (#) (! } ) ($%03) 此即為凸輪理論輪廓曲線的方程式。 !#" 直動從動件圓柱凸輪機構 圖 $%&$ 所示為一直動從動件圓柱凸輪機構。如圖建立 ’#$ 坐標系,設圓柱 0’3 第!章 凸輪機構及其設計 圖 !"#$ 擺動滾子從動件盤形凸輪的輪廓曲線設計 圖 !"#! 直動從動件圓柱凸輪的輪廓曲線設計 凸輪的中徑為軸線到溝槽中線的距離,用 ! 表示。其展開圖為一寬度為 #!! 的 移動凸輪,對其加以 " % &!! 的方向移動時,從動件仍沿 # 軸按其運動規律運 動,并以速度 " % &!! 沿 $ 方向運動。 該凸輪的理論輪廓曲線的坐標方程為 $ % !" # % } % (!"’() !"# 凸輪輪廓曲線的設計 ’)( 其實際輪廓曲線方程為 !! " ! # "$ %&’! #! " # # "$ ()%



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