Universal device for measuring position and speed of overhead and gantry crane

The invention relates to a measuring device, in particular to a device for measuring the position and speed of an overhead and gantry crane. The technical problem to be solved is that the provided measuring device can effectively detect the position and speed and protect safe operation of lifting equipment and has the characteristics of simple structure, convenient manufacturing and strong universality. The technical scheme adopted by the invention is as follows: the device comprises a pulse signal generating device and a control system switching on the pulse signal generating device via a signal wire, wherein the pulse signal generating device comprises a proximity sensor or a photoelectric switch and a detecting fluted disc induced with the proximity sensor or the photoelectric switch; and the detecting fluted disc is installed on a transmission shaft of a mechanism or a self-cooling fan blade of a drive motor so as to realize measurement of the motor speed and the position.