JP2015010843A5 - - Google Patents

Claims (12)

A torsional test device that applies torque to the input / output shaft of a specimen that is a power transmission device
A first drive connected to the input shaft of the specimen;
A second drive unit connected to the output shaft of the specimen;
A controller for controlling the first drive unit and the second drive unit;
With
The first and second driving units are
A motor,
Which is connected to the input shaft or the output shaft of the specimen, and the spindle for transmitting rotation of the motor to the input shaft or the output shaft of the specimen,
A torque sensor for detecting torque applied to the input shaft or output shaft of the specimen through the spindle ;
A tachometer for detecting the number of rotations of the spindle ,
The controller is
For one of the first drive unit and the second drive unit, the spindle is controlled to rotate at a predetermined rotational speed,
A torsion test apparatus that controls the other of the first drive unit and the second drive unit to apply a predetermined torque to the input shaft or the output shaft of the specimen. It is possible to perform a tooth contact test in which the predetermined torque is set to be equal to or less than the design torque of the input shaft or output shaft of the specimen,
The torsion test apparatus according to claim 1. The controller is
For the one, the spindle is controlled to rotate at a constant rotational speed,
For the other, control to give a constant torque to the input shaft or output shaft of the specimen,
When the phase difference of the rotation of the spindle between the first drive unit and the second drive unit exceeds a first reference value, the specimen is determined to be defective.
The torsion test apparatus according to claim 2. The phase difference of the rotation of the spindle between the first drive unit and the second drive unit is a value corrected by the reduction ratio of the specimen.
The torsion test apparatus according to claim 3. The controller is
For the one, the spindle is controlled to rotate at a constant rotational speed,
For the other, control to give a constant torque to the input shaft or output shaft of the specimen,
When the rotational speed of the other spindle fluctuates beyond a predetermined range, the specimen is determined to be defective.
The torsion test apparatus according to claim 2. The controller determines that the specimen has been destroyed when a torque reduction amount detected by any one of the first drive unit and the second drive unit exceeds a second reference value. ,
The torsion test apparatus according to any one of claims 1 to 5. The controller determines that the specimen is defective when the torque detected by any one of the first drive unit and the second drive unit exceeds a third reference value;
The torsion test apparatus according to any one of claims 1 to 6. It is possible to perform an accelerated deterioration test in which the predetermined torque is set to a value exceeding the design torque of the input shaft or output shaft of the specimen.
The torsion test apparatus according to any one of claims 1 to 7. When the tooth contact test is performed and the specimen is not determined to be defective in the tooth contact test, the accelerated deterioration test is subsequently performed.
The torsion test apparatus according to claim 8, which cites claim 3 or claim 5. When the controller determines that the specimen is defective or broken, it stops driving the first drive unit and the second drive unit.
The torsion test apparatus according to any one of claims 1 to 9. When performing a static torsion test, the predetermined rotational speed is set to a zero value;
The torsion test apparatus according to any one of claims 1 to 10. A chuck for fixing an input shaft or an output shaft of the specimen fixed to the spindle;
The torsion test apparatus according to any one of claims 1 to 11.