| 摘要 |
<p>A chuck drived by flexible wheel includes a drill body (1), several jaws (2), a transmitting nut (3), a controlling outer sleeve (7) and a harmonic drive device with flexible wheel positioned between the transmitting nut and the controlling outer sleeve. Due to the harmonic drive device, the chuck could transmit the turning moment to the nut through the incremental force of the gear transmitting with the help of the formation of the harmonic waves rule about the flexible wheel. So the clamping force of said chuck is distinctly greater than the common chuck.</p> |
