Positioning and adjusting device for tachometer wheel

The utility model discloses a tachometer wheel positioning and adjusting device, which relates to the field of tachometer wheels and comprises a support, a fixing frame is arranged at the top of the support, a sliding groove is formed in the middle of one side of the fixing frame, and mounting holes arranged at equal intervals are formed in the top and the bottom of one side of the fixing frame. A sliding block is arranged in the sliding groove, fixing holes are formed in the four corners of one side of the sliding block, two first fixing bases are arranged at the top of one side of the sliding block, a hydraulic press is arranged between the two first fixing bases, two second fixing bases are arranged at the bottom of one side of the sliding block, two turning plates are arranged between the two second fixing bases, and a tachometer wheel is arranged between the two turning plates. And a sensor is arranged above the tachometer wheel. Through the cooperation between the hydraulic press and the turning plate,