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Split spline coupling method First, the part is divided into two parts at appropriate positions. After splitting, the pinion can be processed by the hobbing method. The large and small gears after the separation are processed. Then, press the pinion into the large gear. The two split gears are splined into parts. The inner hole is then positioned to ensure the positioning accuracy of the large gear hobbing. Finally, the joined parts are hobbed to obtain the required external gear. After the above steps, a qualified radial small pitch gear is completed.
The spline must be machined using the gear shaping process. For rectangular splines and triangular splines, the shape of the pinion cutter is more complicated. In order to reduce the manufacturing difficulty of the pinion cutter, it is better to connect the splines with the involute tooth profile.
The mating nature of the spline shaft and the spline hole. In order to prevent the axial movement after the spline connection, the interference of the spline shaft and the hole should be an interference fit. If possible, a larger interference can be selected, and in order to facilitate press fitting, a hot press method can be used.
The position of the Zibo electric drum of the part should ensure that the two parts after the split are easy to process, and at the same time have sufficient strength and rigidity to ensure the processing precision of the split parts. If the large gear is arranged on the hobbing of the split parts, the final accuracy of the large gear will be affected by the precision of the press fit and the spline fit.
May 12, 2023