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鑽探用泥漿泵的拉杆,主要是磨損拉杆中間一段,过去很多拉杆都因此而报廢。如果采用三节拉杆便可避免这种毛病。它是將拉杆分成三节制作(見图),磨損后,只需更换中間磨損的一节即
The tie rods used for drilling mud pumps are mainly worn sections of the tie rods. In the past, many tie rods were scrapped. If you use a three-section rod to avoid this problem. It is made by dividing the drawbar into three sections (see figure). After wear, only one section in the middle wear is replaced.