BW200型往复泵曲轴磨损原因分析及解决措施

Cause Analysis on Crankshaft Wear of BW200 Reciprocating Pump and the Solution Measures

摘要:

建立齿轮传动往复泵的曲柄连杆机构曲轴空间力系，对曲轴曲柄销轴进行受力分析。通过加装平衡条平衡旋转惯性力和改变进水管接口位置试验，找出了液力端进排水流道尺寸的改变是BW200型泵的工作腔液体产生水击的原因，解决了泵温升高和曲轴曲柄销磨损问题。可用于齿轮传动往复泵的曲柄连杆机构曲轴受力分析和计算，解决泥浆泵的类似问题。

关键词:泥浆泵;往复泵;曲柄连杆机构;曲轴磨损;受力分析

Abstract:

The crankshaft space force system of crank and connecting rod mechanism of gear transmission reciprocating pump was established for mechanical analysis on crankshaft crank pin shaft. Through adding balance strip to have rotating inertia force equilibrium and testing to change the interface position of intake pipe, the size change of intake and drainage channels at hydraulic end was found out to be caused by the water attack from the liquid in BW200 pump chamber, and the pump temperature increasing and crankshaft crank pin wearing were solved.

Key words:mud pump; reciprocating pump; crank and connecting rod mechanism; crankshaft wear; mechanical analysis