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一、概况 我厂向日本引进的300kg/cm～2氮气压缩机,经多年运行,于83年进行大修测绘工作,该机敞用55kw电机。曲轴端三角皮带轮直径φ1.2m,重量约350kg,轴颈φ75mm由于无资料说明,三角皮带轮同轴配合性质不明,估计拆卸工作有一定困难。但实际工作中发现不是用键联接,而采用斜楔摩擦联接结构,一旦斜楔松开,轴同孔联接较松,使拆卸工作和安装都很方便顺利,检查轴和孔摩擦联接处也无滑移现象。从这联接方式来看,结构简单、拆装方便、使用可靠。结构如图1。
I. Overview I plant imported to Japan 300kg / cm ~ 2 nitrogen compressor, after years of operation, overhaul in 83 mapping work, the machine open with 55kw motor. Crankshaft triangular pulley diameter φ1.2m, weighs about 350kg, journal φ75mm As there is no information that the triangular pulley with the nature of unknown co-ordination, it is estimated there are some difficulties demolition work. However, the actual work found not to use the key to join, and the use of wedge friction coupling structure, once the wedge loose, loose connection with the shaft hole, the disassembly work and installation are very convenient and smooth, check the shaft and hole friction joints also Slip phenomenon. From the connection point of view, the structure is simple, easy disassembly, the use of reliable. Structure shown in Figure 1.