我厂在检修英国MK-Ⅱ型采煤机时,急需配制一批径节为5、齿数18、压力角20°的内齿轮,由于市场上买不到该种插齿刀,又缺少磨齿设备,因而革新成一种简易磨插齿刀工具。工具的结构如图所示,由底座1、齿条3、心轴4等组成。底座上的斜面为6°,与插齿刀的后角相同。齿条3用两个M12 I plant in the maintenance of the British MK-Ⅱ shearer, the urgent need to prepare a number of diameter section 5, the number of teeth 18, the pressure angle of 20 ° of internal gear, because the market can not buy the gear shaper, lack of gear Equipment, and thus innovation into a simple grinding gear shaper tool. The structure of the tool as shown, from the base 1, rack 3, spindle 4 and other components. The bevel on the base is 6 °, the same as the relief angle of the gear shaper. Rack 3 with two M12