(1) Motor; it is a self-ventilated single-phase series motor. The stator and armature conductors are made of polyester enameled round copper wire, which has been specially treated. The wiring selects an exceptional structure, touch. The commutator is made of trapezoidal copper bar, with thermosetting plastic and mica sheet as the medium. Thermosetting engineering plastics are pressed between the electric shaft and the iron core. The casing and handle cover of the 6, 10, 13 mm electric drills are made of thermoplastic engineering plastics. The 19, 23 mm electric drills are equipped with plastic bushings in the aluminum shell to form a two-layer structure. .
(2) Switch: The electric drill switch with hand-punched agile blocking and self-locking equipment is selected.
(3) Capacitor: A capacitor is installed in the handle of the anti-disturbance electric drill, which can suppress the disturbance of things to electricity and TV.
(4) Gearbox: The case shell is made of die-cast aluminum alloy made by the original factory, and the gear is a modified gear, and it is not easy to wear after high-frequency heat treatment.
(5) Power cord and plug: Choose a three-core flexible cord with a three-wire plug. One end of the power cord is fitted with a sheath outside the casing to protect the cord, and the other end is connected to the plug holder and then pressed into the plastic (rubber) to make Into a non-detachable power plug.
(6) Drill chucks: Choose three-jaw drill chucks (or threaded drill chucks) for 6, 10, 13 mm. When using three-jaw drill chucks, first reduce the inner hole of the drill chuck and the surface of the drill shaft. Prohibited objects. Then install the chuck drill on the shaft for use.