Grinding head mechanism with hydraulic balance structure

The utility model discloses a grinding head mechanism with a hydraulic balance structure. The grinding head mechanism comprises a gear plate. A main grinding head and a plurality of auxiliary grinding heads working in cooperation with the main grinding head are fixedly arranged at the bottom of the gear plate. The grinding head mechanism further comprises a transmission structure, the main grinding head and the auxiliary grinding heads are connected with a motor through the transmission structure. The grinding head mechanism further comprises the hydraulic balance structure for adjusting the heights of the auxiliary grinding heads and pressing the auxiliary grinding heads and the main grinding head on a ground surface. The grinding head mechanism is ingenious in structure, safe and stable in use, wide in application range, suitable for renovating and grinding polished tile floors used for homes and public places for a long time and for grinding the unsmooth surfaces of materials such as hardware, wood and pla