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部分农机具采用螺旋锥齿轮传动,这种齿轮损坏后,若没有配件,就要重新制造。由于螺旋锥齿轮加工设备、刀盘调整非常复杂,专用工装多,其成本是很高的,特别是单件小批生产,其价格更昂贵,一对中等模数的螺旋锥齿轮要在700元以上,与总机价格比较就不合算了。况且,单件生产的单刀号单面切削的加工方法保证不了质量,而有些基层修造站也仅有加工直齿锥齿轮的能力。因此,只要螺旋锥齿轮小轮齿数不少于直齿锥齿轮的根切齿数12,不妨将螺旋锥齿轮转化成等效的直齿锥齿轮,同样能取得满意的效果。锥齿轮是成对制造安装的,在损坏后,测绘及重新制造也要成对进行。一般情况下,锥齿轮传动的轴交角为90°。图
Part of the farm machinery using spiral bevel gear drive, this gear damaged, if there is no parts, it is necessary to re-create. Due to the spiral bevel gear processing equipment, cutter adjustment is very complex, special tooling and more, the cost is very high, especially small batch production, the price is more expensive, a pair of medium modulus spiral bevel gear to 700 yuan Above, compared with the exchange price is not worth the. Moreover, the single-part single-sided single-sided machining can not guarantee the quality of processing, and some grassroots repair station is only capable of processing straight bevel gears. Therefore, as long as the helical bevel gear number of not less than the number of helical bevel gear teeth 12, may wish to spiral bevel gears into equivalent straight bevel gears, the same can be achieved satisfactory results. Bevel gear is made in pairs, installed in the damaged, the mapping and re-manufacturing should be carried out in pairs. Under normal circumstances, bevel gear shaft angle of 90 °. Figure