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Principle tapered roller bearing assembly and assembly of random particularity

Source: Time:2019-02-26 09:22:09 frequency:

In tapered roller bearings, the rollers and the inner and outer raceways are tapered surface binding, in the process, since the roller diameter roller and ring of the cone, the cone angle and length may be biased, they will affect the binding cone when the size of the base surface distance, and internal and external conical surface of the contact. Tapered roller bearing assembly process, the impact of processing on the quality of the rolling element bearing assembly quality is very prominent.
At present, the domestic bearing parts processing, the rollers quality control and more attention. This tapered roller bearing product assembly process, the development of a random assembly methods, and has been widely applied to create the conditions. The so-called random assembly method, refers to the production site, in accordance with the final order will be processed every n tapered roller grain into groups, and each group of rollers placed in special packaging, such as plastic pipes, plastic bags, boxes, etc. or directly form the assembly with a plastic cage. When the finished assembly. Then each group a set of rollers mounted in bearings. Compared with the selection assembly, random assembly has many advantages, with better economic benefits. For example, the abbreviated process, do not have to end after processing roller sorting, saving manpower and resources.
Traditional assembly methods tapered roller bearings, it is to complete processing of the finished roller mixed, after sorting machines or manually size groups, and finally fitted into the cage inside. Sorting machine during the tapered roller can only measure a point when sorting, not separation roller angle; positioning accuracy can not be avoided due to the dirty product caused not allowed to make the sorting accuracy decreased; while the product can not be avoided cards injury, bump injury and corrosion occurs.
At present, the tapered roller sorting machine design and manufacturing technology is not yet fully mature, and thus the size of a packet of tapered roller asked seriously affect the visual quality of the bearing assembly. Ring tapered roller bearing assembly particularity tapered roller bearing assembly calculation, the theoretical analysis and numerical examples illustrate: size deviation ships bearing supporting part to meet the requirements of products bearing width deviation. Thus, single row tapered roller bearing assembly method can be used interchangeably. However, in actual production, not only the size deviation factors bearing width, as well as form and position deviation, wherein the raceway and roller Plain wire convexity greater impact, in addition to matching the relevant parts of the angle of deviation of the width of the bearing influences. Thus, just press roller cone under swap conditions calculated bearing assembly is assembled, there is a difference to the theoretical value and the actual value of the note. As theoretical width deviation qualified, but the actual assembly has failed. By appropriately compressing part size tolerances, so leave some room for the size of the calculation, it is a way to solve this problem. In the process of tapered roller bearings, the rollers and the inner and outer tapered raceways are incorporated, combined with conical base surface distance and the size of the inner, outer conical surface contact condition by the roll diameter of the cone ring cone angle and length deviation of.
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Add:Dalian Economic Zone, Liaoning Province      Tel:86-0411-85760320
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