Meshing transmission error measuring apparatus and measuring method

摘要

PPROBLEM TO BE SOLVED: To increase the number of rotations capable of continuous measurement while maintaining a device in compact size, when measuring transmission errors, while imparting loading torque with a loading weight and while making the transmission gear rotate. PSOLUTION: The engagement transmission error is measured as follows: in a state with the loading torque (engaging torque) imparted to the transmission gear 14 by suspending the loading weight 38, the driving motor 28 drives the first rotational shaft 20 for making engaged rotation, the rotational angles of the first rotational shaft 20 and the second rotational shaft 22 are measured by the rotary encoders 24 and 26. By the rotation of the first fixed pulley 30, accompanied by the rotation of the second rotation shaft 22, even if the connection wire 34 is wound up or wound back to or from the first fixed pulley 30, the loading weight 38 will be kept at substantially a fixed constant height, because the second fixed pulley 32 rotates, synchronizing to the first fixed pulley 30 by the motor 40 for synchronization. The engagement transmission error can be measured, while making the first rotational shaft 20 rotate many times, while keeping the loading weight 38 at substantially a fixed height. PCOPYRIGHT: (C)2007,JPO&INPIT