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DWL-48捣稳定车采用合金钢车轴,按照铁标进行轮对试制组装,但组装过程连续出现压力曲线不合格,退卸车轮发现车轮车轴严重拉伤,导致车轮车轴报废。通过对车轮车轴加工质量,注油孔的位置,高压油泵液压油等进行了检查分析,提出了改进意见,并将过盈量控制在0.17～0.28 mm之间,注油油压应在90～150 MPa范围内,注油压装工艺成功应用于DWL-48捣稳定车合金钢车轴轮对组装。
DWL-48 pounding stable car with alloy steel axles, according to the iron standard wheel assembly trial, but the continuous assembly process pressure curve unqualified, disassembled wheel found serious wheel axle, resulting in wheel axles scrapped. The quality of the wheel axle, the position of the oil hole and the hydraulic oil of the high-pressure pump are checked and analyzed. Suggestions for improvement are given, and the interference is controlled between 0.17 and 0.28 mm. The oil pressure should be between 90 and 150 MPa Within the scope of the oil pressure loading process successfully applied to DWL-48 pound stability car alloy steel axle wheel assembly.