The processing technical requirements of the new detachable coupling

The processing technical requirements of the new detachable coupling

     1). The finish machining of the outer surface of the flange of the coupling should be carried out on the shaft after the taper hole is scraped and matched.The finish and processing technical requirements should be the same as the forged flange coupling;

     2) The width, height and axis parallelism of the keyway processing are the same as the shaft keyway processing requirements, and the final quality of matching with the shaft key is the acceptance standard.

    New detachable coupling assembly requirements:

    (1) The surface roughness of the coupling taper hole and the shaft cone is Ra0.4μm, the contact should be good, the contact area should be more than 75%, and there should be no less than 25 contact points in every 25×2mm3 area.When the feeler gauge is used to inspect the large end of the cone, the insertion depth of the 0.03mm plug should not exceed 3mm.One or two blank areas with small area are allowed on the contact surface. The total area is less than 1% of the cone, and the length or width should not exceed 2/15 of the diameter of the cone, and they should not be distributed on the same bus or circumferential line. on;

    （2）键与键槽工作面的表面粗糙度为Ra0.8μm，两侧的接触面积不少于75％，与联轴器键槽相配时有75％长度上应插不进0.05mm的塞尺，其余部分应插不进0.10mm 的塞尺。平键与轴键槽底应不少于30％～40 ％的接触面； 

    (3) After the coupling tightening nut is installed (shaft end), the 90mm feeler gauge should not be inserted on 0.50% of the circumference of the joint surface, and the contact area should not be less than 75%, and there is a reliable anti-loosening device. .