Variable -frequency speed -adjustment motor

The utility model provides a variable -frequency speed -adjustment motor belongs to motor technical field. This variable -frequency speed -adjustment motor, including the casing, the casing comprises shell body and left end lid and right -hand member lid, is provided with the stator in the shell body, penetrates the rotor in the stator, has the drive shaft on the rotor, and the one end of drive shaft forms the drive end, and its characterized in that, the other end of drive shaft are equipped with the standard survey structure of transfeing, the standard survey the favourable turn construct including install in the epaxial mounting disc of drive no. 1 with fix the mounting disc no. 2 of covering at the left end, be equipped with infrared receiver no. 1 in the mounting disc no. 1, be equipped with infrared emitter no. 1 in the mounting disc no. 2, mounting disc no. 1 and mounting disc are equipped with a grating disc between two, grating disc fixes and covers at the left end, grating disc is last, and to have