Gear motor mounting arrangement
The characteristics of the geared motor are high efficiency and reliability, long working life, easy maintenance, and wide application. Its series can be divided into single-stage, two-stage, and three-stage geared motors. The installation layout mainly includes expansion type, coaxial type, and split type.
1. In the expansion type of the two-stage cylindrical geared motor, the gear is asymmetrical for the support position. As a result, when the shaft is bent and twisted, the load is unevenly distributed in the tooth width, so the shaft should be designed with greater rigidity and make the gear away from the input—end of the output.
2. The split type of the two-stage cylindrical geared motor: the out-of-shaft of the split-type geared motor can be extended from either side, which is convenient for the overall configuration of the machine. The gears of the split-stage are machined into helical teeth. One side is right-handed, one side is Left-handed to counteract axial forces. One of the shafts should be allowed to make a slight axial movement to avoid jamming the gears.
3, the characteristics of the coaxial geared motor: the radial size is compact, but the axial size is large. Since the intermediate shaft is large, the shaft has a large disturbance when loaded, so the load concentration along the tooth width is more serious. At the same time, since the center of the two-stage gear must be consistent, the bearing capacity of the high-speed gear is difficult to utilize fully, and the bearing lubrication in the middle portion of the geared motor is also difficult. The input and output ends of the geared motor are located at both ends of the same axis, limiting the transmission's overall configuration.
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