蒸汽机车轮对的检修质量和技术状态,对机车的运用效率和安全行车影响很大。检修机车时,检修或更换轮对所需费用较大。因此,在确保机车安全行车的前提下,如何采用合理的检修方法、最低的换修率,对降低机车的检修费用具有重要的意义。本文就轮对检修中,关于镶入部与毂孔之间的间隙的处理谈点粗浅的看法。一、问题的提出与重要性对蒸汽机车轮对的压装部位(指车轴镶入部和车轮轮毂孔,曲拐销镶入部和曲拐销毂孔,以下统称镶入部和毂孔)的基本要求,是在运用中不发生松缓、切轴、断销等重大事故。《蒸汽机车厂修规程》(下称《厂修 Steam locomotive wheel overhaul quality and technical status, the use of locomotives and safety driving a great impact. When repairing a locomotive, the cost of overhauling or replacing the wheelset is greater. Therefore, under the premise of ensuring the safe driving of the locomotive, how to adopt a reasonable maintenance method, the lowest rate of repair, to reduce the cost of locomotive maintenance is of great significance. This article on the wheel overhaul, on the insert and hub hole between the gap handling talk about superficial view. First, the issue raised and the importance of the steam locomotive wheel press parts (referring to the axle inserts and the wheel hub hole, crank and the curved crank pin into the hole, the following collectively referred to as inserts and hub holes) the basic requirements, Is not in the use of loose, cut axis, broken off and other major accidents. “Steam locomotive factory repair regulations” (hereinafter referred to as "factory repair