METHOD OF WORKING MODIFIED GEARING WORM WHEEL

FIELD: mechanical engineering. SUBSTANCE: working of worm wheel 1 of modified gearing is performed by worm-type tool 2 positioned at an angle νßÒ» to middle plane 3 of worm wheel 1. Middle sections of active surface of teeth 4 of wheel 1 with right-hand (left-hand) direction of line of tooth 4 is carried out by tool 2 inclined counter-clockwise (clockwise) through an angle νßÒ» to be determined from dependence: , where ν is angular extension of hollow 5 (oil groove aa'd'd zone of middle section boundary friction on active surface of tooth 1); is angle between middle plane 3 of wheel 1 and output edge dd' of hollow 5; lambdau1 is elevation angle of dividing helical line of tool by which active surfaces of teeth 4 of wheel 1 are worked; lambdau2 is elevation angle of dividing helical line of tool 2 which is used to cut out hollows. EFFECT: higher quality of working. 4 dwgw