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200升活塞油泵135转子衬套是一个钢-青铜的双层合金轴套零件(图1),外壳材料为15号钢,内衬为磷青铜。它加工后的尺寸为:钢套外壳外径φ159jd,光洁度▽▽▽8;青铜内衬内径108D_4,光洁度▽▽6,长度120毫米。按圆周等分铣扁圆形孔13个(宽16×长26毫米)。青铜层厚度2.5毫米。转子衬套固定在铸铁转子内,以每分钟960转围绕输油轴(衬套与轴间隙0.04～0.06毫米)旋转。如果双层合金粘合不牢固,青铜层可能从钢套剥落;而青铜内衬存在的小孔眼,又将降低轴套的耐磨性。如果青铜内衬夹杂有杂质或硬点,这些杂质由于油液的高压被挤出来,会发生烧轴现象。因此,钢与青铜要全面
200 Liter Piston Pump 135 The Rotor Bushing is a steel-bronze, double-layered, bushing part (Figure 1) with a 15 gauge housing and a phosphor bronze lining. It is the size of the processing: steel jacket outer diameter φ159jd, finish ▽ ▽ ▽ 8; bronze lining diameter 108D_4, finish ▽ ▽ 6, the length of 120 mm. Circumferential milling flat round hole 13 (16 × 26 mm long). Bronze layer thickness of 2.5 mm. The rotor bushing is fixed in a cast iron rotor and rotates at 960 revolutions per minute around the oil delivery shaft (bushing and shaft clearance 0.04-0.06 mm). If the double-layer alloy is not firmly bonded, the bronze layer may peel off from the steel sleeve. The small hole in the bronze lining, in turn, will reduce the wear resistance of the sleeve. If the bronze lined with inclusions or hard spots, these impurities due to the high pressure oil is squeezed out, there will be shaving phenomenon. Therefore, steel and bronze should be comprehensive