Wire rope and assembly pulley on the flexible pumping units replace balance beam and connectingrod on regular pumping units.
柔性抽油机结构上使用钢丝绳和滑轮组替代了常规抽油机的游梁和连杆。
2
Based on analyzing the unbalanced force of crank-connectingrod mechanism, this paper describes the balance of motorcycle single-cylinder engine according to practices home and abroad.
Four-column type double-direction guiding and crank connectingrod synchronized balance mechanism are adopted to guarantee equal force in the cutting area of machine.