A kind of drilling tool with slow start circuit
A technology of slow start circuit and drilling tooling, which is applied in the direction of driving device, drilling/drilling equipment, manufacturing tools, etc., which can solve the problems of workers' unresponsiveness and machine injury, and achieve the effect of ensuring safety
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[0019] figure 1 It is a structural schematic diagram of an embodiment of the drilling tool 1 of the present invention. In the figure, 1 is a drilling tool, 2 is a rectifier circuit, 10 is a positive voltage input terminal, 12 is a negative voltage input terminal, 14 is a single-pole double-throw switch, 16 is a selection unit, 18 is a motor, 22 is a drill bit, and 206 is a Control unit, 212 is the first control circuit, 214 is the second control circuit, 216 is the third control circuit, 218 is the fourth control circuit, D1-D4 are the first to fourth diodes, M1-M4 are the first To the fourth field effect transistor, N1-N2 are the first to second inverters, L1 is a coil, and S1 is a contact group switch.
[0020] see figure 1 , is a structural schematic diagram of an embodiment of the drilling tool 1 of the present invention. In this embodiment, the drilling tool 1 includes a positive voltage input terminal 10 , a negative voltage input terminal 12 , a SPDT switch 14 , a se...
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