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How should the accuracy of the planetary reducer be adjusted

Views: 1     Author: Site Editor     Publish Time: 2019-11-12      Origin: Site

How should the accuracy of the planetary reducer be adjusted

1. Adjustment of the guide precision of the planetary reducer

The guiding accuracy of the guide rail refers to the accuracy of the movement trajectory when the moving parts of the mechanical equipment move along the guide rail. In addition to the type, combination and size of the guide rail selected in the design, the main factors that affect the guide rail accuracy are as follows:

(1) Affected by the suitability of the guide gap.

(2) Affected by the rigidity of the guide rail itself.

(3) Affected by the geometric accuracy of the guide rail.

2. Adjustment of the gap between the screw and nut of the planetary reducer, worm gear screw elevator

The transmission chain in general mechanical equipment is composed of gears and gears, gears and racks, worm gears and worms, screws and nuts. Spiral lifting nut drive is a common mechanism for linear motion. It is difficult to do without the gap between screws and nuts. Especially after a stage of use, due to wear and tear, the gap of the equipment will increase and the normal operation of the equipment will be affected. Therefore, in the process of equipment maintenance, care must be taken to eliminate the gap between the nut and the nut.

Third, the adjustment of the rotation accuracy of the planetary reducer main shaft

The accuracy of the spindle rotation refers to the radial runout, circumferential runout and axial movement of the working parts at the front end of the spindle. On the premise that the machining error of the main shaft itself meets the requirements, the bearing determines the rotation accuracy of the main shaft of the planetary reducer to a large extent. The key to adjusting the spindle rotation accuracy is to adjust the bearing clearance. Maintaining a reasonable bearing clearance is of great significance to the performance of the spindle components and the life of the bearing.

For rolling bearings, when there is a large gap, the load is not only concentrated in the force direction of the rolling bearing, but also serious stress concentration will occur at the contact between the inner and outer ring raceways of the bearing. Shorten the life of the bearing and cause the centerline of the spindle to drift, which may easily cause vibration of the spindle components. Therefore, the adjustment of the rolling bearing must be preloaded, so that the internal interference of the bearing causes the elastic deformation when the rolling bearing contacts the inner and outer ring raceways, thereby improving the rigidity of the bearing.


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