improve
Drum type gear couplingAn important way of service life.The tooth width coefficient affects the tooth root bending strength and tooth surface contact strength of the tooth. The larger the tooth width coefficient, the greater the strength of these two items. The tooth width coefficient affects the coincidence degree. When the tooth width coefficient is less than a certain value, its value The increase of φ has a greater impact on the increase of the coincidence degree, and when the value is greater than this certain value, the increase of the device value has a smaller impact on the increase of the coincidence degree. For the drum-shaped gear coupling with a circular bulge curve, the tooth width is still Determine the parameters of the bulge circle radius and the backlash. The larger the tooth width, the larger the bulge circle radius and the larger the backlash required. Therefore, the following bright spot requirements are required:
(1) There is no edge contact phenomenon when the inclination angle between the shafts is at the maximum;
(2) The smaller the gear tooth's concentrated load, the better, and the curvature of the tooth surface is proportional to the circumference of the drum, so the drum radius is as large as possible.The curvature radius of the bulge curve is proportional to the single-sided thinning of the internal tooth, so the bulge circle radius should be as large as possible.The radius of curvature of the bulge curve is proportional to the single-sided thinning of the internal tooth, that is, it is related to the meshing gap of the tooth. Insufficient thinning may cause interference, and excessive thinning will weaken the strength of the tooth, and the backlash will be large. .