Planetary reducer cold loading process and hot loading process

Time：2020-05-24

Hot loading process is through the method of open fire, oil cooking, electromagnetic heating, the workpiece temperature to 180 degrees near, based on the planetary reducer assembly base hole thermal expansion, the shaft workpiece hot sleeve into the base hole, such as the workpiece after cooling, so as to achieve the assembly of the set and gear workpiece. Due to thermal assembly is the basic principle of heat bilges cold shrink, by adding a tropical base hole of the workpiece, the basic hole diameter increased by thermal expansion, but due to lack of heating time, the interval is too small, low environmental temperature, cooling speed, can contribute to an assembly process such as the assembly speed is not timely hole axis parts and parts in is not yet in place, aperture had already produce contraction, There is a dilemma of locking, which causes damage to the parts.

And cold pack technology is to need to load the base hole of the parts for cooling, first made its appearance size shrinkage, planetary gear reducer assembly clearance between the assembly surface, so that the parts are assembled an assembly method, using cold in process of assembly, then only need to secondary planet internal gear ring for cooling, parts are smaller and easier to cool, and cold pack for nondestructive assembly, No damage to the parts.

Planetary reducer cold loading process and hot loading process through the comparison is not difficult to find that the cold loading process compared to the hot loading process, is not easy to damage the parts of the planetary reducer, so the general suggestion that you can try to use the cold loading process when installing the planetary reducer.

Last：What are the reasons for the loosening and leakage of the reducer?
Next：Always pay attention to lubrication when using planetary reducer