How to adjust the precision of the planetary reducer

1. Adjust the guiding accuracy of the planetary reducer

The guiding accuracy of the guide rail refers to the accuracy of the motion trajectory of the moving parts of the mechanical equipment when moving along the guide rail.In addition to the type, combination and size of the slideway selected in the design, the main factors affecting the accuracy of the slideway are:

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

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

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

2. Adjust the gap between the planetary reducer, the screw and the nut of the worm gear lifter

The transmission chain in general mechanical equipment consists of gears and gears, gears and racks, worm wheels and worms, screws and nuts.Screw jack nut drives are a common mechanism for linear motion.It's hard to do without the clearance between the screw and the nut.Especially after the period of use, the gap between the equipment will increase due to wear and tear, and it will affect the normal operation of the equipment.Therefore, in the process of equipment maintenance, attention must be paid to eliminating the gap between nuts and nuts.

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

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

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