Two-stage cylindrical gear reduction motor expansion, the gear relative to the support position is not symmetrical, when the shaft produces bending and torsion deformation, the load is not evenly distributed in the tooth width, so the shaft should be designed with greater stiffness, and make the gear away from the input or output end.
Two levels of cylindrical gears reduction motor shunt type: the characteristics of shunt type of overhanging deceleration motor shaft position by either side, convenient for the machine's overall configuration, shunt level are done helical gear, right-handed and left-handed, to offset the axial force, should be one of the shaft axial winding, can do a bit to avoid stuck gear.
Coaxial gear reduction motor features: compact radial size, but large axial size. Due to the large middle shaft, the axle has a large perturbation under load, so the load concentration along the tooth width is serious. At the same time, because the center of the two gears must be consistent, it is difficult to make full use of the bearing capacity of the gear, and the bearing lubrication in the middle part of the deceleration is also difficult. The input and output of the deceleration motor are located at both ends of the same axis, which brings restrictions to the overall configuration of the transmission device.
