Aiming at the problems of unstable quality and low efficiency in the drilling process of the outer ring of the outer spherical bearing, a fully automatic radial drilling machine for the outer ring of the bearing was designed and developed. By setting up automatic loading and unloading device, clamping device, drilling device and using PLC system control, the continuous automatic processing of multiple processes such as loading, clamping, multi-directional drilling, and blanking is realized, and the drilling effect is practiced. verify. The influence of the metallurgical quality of the outer spherical bearing seat material is the main factor in the early failure of rolling bearings. With the advancement of metallurgical technology (such as bearing steel, vacuum degassing, etc.), the quality of raw materials has been improved. The proportion of raw material quality factor in bearing failure analysis has dropped significantly, but it is still one of the main factors of bearing failure. Whether the selection is appropriate is still a bearing fault analysis that must be considered. Deep groove ball bearings, tapered roller bearings, spherical roller bearings, cylindrical roller bearings, needle roller bearings, outer spherical bearings The main task of failure analysis of the outer spherical housing is to analyze based on a lot of background information, data and fault patterns, Find out the main factors that cause bearing failure, in order to make targeted improvement, extend the service period of the bearing to prevent the early failure of the bearing in the event of an emergency. The fatigue life of the outer spherical bearing seat calculated according to the rule formula and calculation rules is used as the calculation fatigue life, and the calculated total rotation value is the total rotation value of the inner ring or shaft ring when the inner ring or shaft ring rotates (the outer ring or seat ring is fixed at this time). . In accordance with the standard experimental method of rolling bearing fatigue life experiment procedures, the test machine that can meet the requirements of the regulations in terms of operating performance, conduct sampling fatigue life experiments on a batch of bearings, and obtain the actual results obtained from the experimental data processing. The experimental life is the fatigue experimental life of the outer spherical bearing seat represented by the tested bearing. In the experiment of rolling bearing fatigue life, it is an enhanced fatigue life experiment method in which sufficient lubrication is used to minimize the wear factors of rolling bearings, and enhanced load and rotational speed are used to highlight the bearing fatigue factors. The calculation method of the fatigue life of the outer spherical bearing seat and the fatigue life experiment are complementary to each other, and the results obtained by the two have a satisfactory correspondence. However, in practice, for each specific application, a sufficient number of bearings are selected for life experiments to verify whether the selected bearings are suitable. This is very economical, time-consuming and labor-intensive. Therefore, The experimental method for the life of the outer spherical bearing seat is only used when it is very necessary or important. In most cases, the standard life calculation method is used to estimate the service life of the bearing, which has a degree of satisfaction. .
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