Gear shifting type constant torque tapping mechanism
A constant torque and rack technology, applied in the field of tapping machines and shifting type constant torque tapping mechanisms, can solve the problems of low labor intensity, and achieve the effects of convenient operation, increased rotational speed and increased transmission force.
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[0009] The invention discloses a gear shift type constant torque tapping mechanism, such as figure 1 As shown, including a frame, the frame is connected to the base 1, the main shaft is installed in the frame, the main shaft is driven by the handle 5, the drill chuck 12 is installed under the main shaft, and the tap 13 is installed in the drill chuck 12, which is characterized in that the machine The frame includes a vertical slide pair. The vertical slide pair fixes the main shaft via a tie rod 2. The main shaft includes an upper main shaft 3 and a lower main shaft 4 that are movably connected. The handle 5 is connected to the upper main shaft 3, and the middle of the upper main shaft 3 and the middle of the lower main shaft 4 A housing 8 is installed between the upper cover 6 and the lower cover 7, and a friction rotor 10 is installed outside the upper spindle 3. The friction power 10 is in contact with the friction static plate 9 through the friction connection plate 11, and t...
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