Single-phase vertical variable frequency speed governing(VFSG) bench drill

Single-phase vertical variable frequency speed governing(VFSG) bench drill relates to the drilling machine the utility model provides a simple structure can effectively increase the drill bit moment of torsion, avoids the single-phase vertical variable frequency speed governing(VFSG) bench drill that the drill chuck extremely damaged including the frame, stand, main shaft, motor, workstation, elevating system, chuck, drill bit and operating handle, its characteristics lie in, still are equipped with converter and planetary gear speed change mechanism, said motor is the single phase machine, and converter signal output part connects one-way motor control signal input, and one-way motor output shaft is connected with the planetary gear speed change mechanism input, and the planetary gear speed change mechanism output is connected with the chuck, and the chuck is connected with the drill bit be equipped with converter control single phase machine and planetary gear speed change mechanism variable speed, can effectively improve drill bit output torque, avoid the drill chuck extremely to damage be equipped with the cooling water nozzle, can effectively reduce the heat that the drill bit grinding produced, be difficult for burning out the drill bit, improve drilling life of bit save belt pulley speed change gear, the structure is simple more compact, and application scope is big