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.
考虑各构件惯性力，计算了各构件的力和力矩的平衡方程，对混合驱动压力机进行动态静力分析；
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.
游梁式抽油机的一种类型。其中两个旋转的重金属铸件平衡块位于曲柄上，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.
采用四柱式双寻向和曲柄连杆同步平衡机构，保证冲裁区域受力均匀。