我队机修车间工人在全国工业学大庆运动的推动下,本着勤俭建国的原则,用普通车床加工已报废的200/40型泥浆泵的泵体主孔,修旧利废,为煤炭勘探工作做出了贡献。这台废泵的泵体主孔φD(图1)原尺寸为φ150毫米,其中一孔磨损深度已达4毫米。我们用改装的8呎普通车床,拆去中、小溜板,只用大溜板,将镗杆、镗刀装在主轴孔与尾坐顶尖之间(图2)。利用大溜板 Under the impetus of the National Daqing Movement for Industrial Science and Technology, our team’s mechanic workshop workers used the principle of diligence and founding a nation to process the main bore of the 200/40 type mud pump pump that had been scrapped and used it for coal exploration work. Made a contribution. The main bore of the pump body of this waste pump, φD (Fig. 1), is φ150 mm in diameter, and the depth of wear of one borehole has reached 4 mm. We used a modified 8-inch ordinary lathe to remove the middle and small slides. We only used a large slide plate to install the boring bar and file between the spindle hole and the tail tip (Figure 2). Utilize slide plate