| 摘要 |
PURPOSE:To perform the endurance test of a lifter certainly by moving a rotary shaft according to the movement of a dial shaft to transmit the driving force of a motor to the dial shaft accurately. CONSTITUTION:A seat A is fixed on fixing members 21 and 22 with volts, handle 10 is rotated to slide a sliding board b3 and the chuck 5 of a rotary shaft 7 is engaged with a dial 11' around the dial shaft 11 of the seat A. When a start switch is turned on and a motor 3 starts, the motor rotates in the normal 1 reverse direction by a timer and a limit switch and the rotary shaft 7 repeats operation of rotation, stop, reverse rotation, stop in order, successively to perform the endurance test for lifter (alpha) working. The rotary shaft 7 interlocked with the dial shaft which rotates with inclination according to the rotation of the motor is mounted on a loading board (b). Since the loading boad (b) is moved vertically by a rotary shaft turning sylinder 2, the rotary shaft 7 is situated always on an extension line of the dial shaft 11. Working torque is directly read out on a digital display unit 6a at any time by a 6. |
