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目前,国内外滚筒式采煤机牵引部、截割部的机械传动部件中,行星齿轮传动由于其体积小、效率高、并在采煤机机械传动系统中布置合理等优点,采用日益广泛。随着采煤机功率的不断增大(如国外采煤机的单电动机功率已达450kW,甚至更大)及薄煤层采煤机的发展,对行星齿轮传动的承载能力、寿命和可靠性等指标提出了更高的要求。因此,国外在采煤机齿轮、尤其在行星齿轮传动中,对轮齿修形、修缘技术的采用十分重视。虽然轮齿设计成修形、修缘后,
At present, among the mechanical transmission components of traction and cutting parts of drum shearers at home and abroad, planetary gear drives are widely used because of their small size, high efficiency and reasonable arrangement in the mechanical transmission system of shearer. With the continuous increase of shearer power (such as single motor power of shearer has reached 450kW or even more) and the development of thin coal seam shearer, the carrying capacity, life expectancy and reliability of planetary gear drive Indicators put forward higher requirements. Therefore, foreign mining shearer gear, especially in the planetary gear drive, gear modification, repair technology adopted very seriously. Although the teeth designed to repair shape, repair edge,