论文部分内容阅读
针对400型水泥车三缸泵盘根密封性能差．使用寿命短的问题，对盘根的材料、结构、组合方式进行了改进设计。改进后的盘根密封性能良好，使用寿命明显延长。
For 400 cement truck three-cylinder pump packing sealing poor performance. Short service life, the packing material, structure, combination of improved design. Improved packing seal performance is good, significantly longer service life.