Saw wheel assembly

The utility model discloses a saw wheel assembly, which comprises saw wheels, saw wheel bottom frames, saw wheel connecting arms, saw wheel motors, synchronous belts, side arms, rotary motors, saw wheel screw rods and connecting blocks, wherein the inner side of each saw wheel bottom frame is rotationally connected with the corresponding saw wheel connecting arm, each saw wheel is arranged at the upper end of the corresponding saw wheel connecting arm, each saw wheel motor is arranged at the lower end of the corresponding saw wheel connecting arm and is used for driving the corresponding saw wheel to rotate, each saw wheel motor is in driving connection with the corresponding saw wheel through the corresponding synchronous belt, the middle part of each saw wheel connecting arm is hinged to the corresponding saw wheel bottom frame, each side arm is arranged at the upper part of the corresponding saw wheel connecting arm and is parallel with the corresponding saw wheel bottom frame, the outer side of each saw wheel bottom frame is rotationally connected with the corresponding rotary motor, each saw wheel screw rod is arranged at the upper end of the corresponding rotary motor and is driven by the corresponding rotary motor, each connecting block is arranged at the outer end of the corresponding side arm and is in matching driving with the corresponding saw wheel screw rod, and each connecting block is rotationally connected with the outer end of the corresponding side arm. The saw wheel assembly has the advantage that by adopting the cutting mechanism, the cutting efficiency and cutting accuracy are greatly improved.