Through dynamic simulation and orthogonal experimental design of spur gears, the influence of slot hole structural parameters on the vibration characteristics of spur gears was studied and verified through experiments. The main conclusions are as follows:
(1) The slotted tooth structure has a significant inhibitory effect on the meshing vibration of spur gears. The flexibility of the slotted hole can replace the backlash on the tooth surface and eliminate the backlash on the tooth surface.
(2) Side clearance has the greatest impact on the vibration acceleration of spur gear pairs, accounting for 85. 2% The groove width has almost no effect on the vibration acceleration of the spur gear pair, accounting for 0. 84% 13%。
(3) The combination of small holes and side gaps has a significant inhibitory effect on vibration; The optimal parameter is groove width of 0.2 mm, side clearance of – 0 The meshing fundamental frequency vibration acceleration amplitude of spur gears designed with a diameter of 03 mm and a hole diameter of 4 mm decreases by 21. 5% compared to the original structure 1%； The power spectrum energy decreased by 20.4%.
(4) From the experimental data, the vibration acceleration amplitude of the optimal parameter structure is generally reduced by 19. 5% compared to the original structure 2%~33.8%, similar to theoretical simulation.
The proposed vibration damping structure design of spur gears has certain reference significance for high parameter application scenarios such as high requirements for transmission stability and silence, precision, and no backlash.