SIMULATION OF TEMPERATURE PROCESSES OF INTERMITTENT GRINDING OF SURFACES BY ROTATION OF ROLLER BEARING RINGS

Abstract

In this work, a series of experimental studies was conducted, which confirmed the results of modeling temperature processes in the area of ​​centerless intermittent grinding of the rolling bearing surfaces of roller bearings. The dependences between the grinding temperature, the tangential component and the radial component during intermittent grinding with circles with different numbers of grooves have been experimentally established. Based on the use of the proposed prefabricated design of the intermittent grinding wheel, a highly efficient technology of centerless grinding of the surfaces of roller bearing rings with the ability to control the grain size of the prefabricated, working, calibration and care cutting zone. The combination of different grain sizes in the design of the prefabricated grinding wheel made it possible to improve the quality of ground surfaces to Ra 1.0-1.4 μm, reduce and stabilize the temperature in the grinding zone to 450 ° C and remove from the process of grinding the base surface of the ring one semi-roughing operation .