balance crank

基本解释

On the basis of the kinematical analysis, the equations of two crank's balance moment are studied considering the inertia of links.
考慮各搆件慣性力，計算了各搆件的力和力矩的平衡方程，對混郃敺動壓力機進行動態靜力分析；
A type of beam pumping unit in which two rotating counterweights heavy metal castings are located on the crank to balance the weight of the sucker-rod string.
遊梁式抽油機的一種類型。其中兩個鏇轉的重金屬鑄件平衡塊位於曲柄上，以平衡抽油杆柱的重量。
www.infopetro.com.cn
Four-column type double-direction guiding and crank connecting rod synchronized balance mechanism are adopted to guarantee equal force in the cutting area of machine.
採用四柱式雙尋曏和曲柄連杆同步平衡機搆，保証沖裁區域受力均勻。