| 摘要 |
PURPOSE:To obtain a shaft securing apparatus of a stepless speed change pulley wherein the abrasion or the like of the key due to the fluctuation of the load or shock load, by forming notches in one end of a boss section, and securing tapered surfaces by a clamping ring. CONSTITUTION:A ring 32 is fitted into one end of a boss section 22a, and bolts 40 inserted in holes 30 in a disk section 22c are threaded into threaded holes 34. Then the boss section 22a is fitted onto a motor shaft, and a key is fitted into the key way 28 of the boss section 22a. Then the bolts 40 are rotated to secure the inner tapered surface of the ring 32 to the tapered surface 22 of the boss section 22a. As the one end of end of the boss section 22a is formed with notches 24, 26, the boss section 22a is diametrically reduced by the pressure of the ring 32, and the end of the boss section 22a is secured to the outer circumferential surface of the motor shaft to be fixed to the motor shaft. |
