Roller type travel switch quality detector

The utility model discloses a roller type travel switch quality detector, including detecting power supply loop, direct current motor, direct current motor speed governing module and disc, the center of disc is provided with the through -hole, is provided with the spill spout that can hold the gyro wheel on the outer circumference of disc, direct current motor speed governing module includes microcontroller, direct current motor driver chip and input button, it includes power supply to detect power supply loop, ampere meter A1 has been met between power supply's forward transportation output and the negative output end in proper order, roller type travel switch and slide rheostat RL, it has voltmeter V1 to connect in parallel in roller type travel switch's a switch contact and the 2nd switch contact's both ends, two stiff ends of slide rheostat RL connect in parallel and have pulse counter J1, slide rheostat RL's slip end meets with the link of the 2nd switch contact and slide rheostat RL's a stiff end, the utility model relates to a novelty, simple structure, it is comprehensive to detect data, excellent in use effect, the practicality is strong.