Grinding disk kit, grinding equipment and grinding method for finishing rolling surfaces of bearing rollers

A grinding disk kit for finishing rolling surfaces of bearing rollers, comprising a pair of coaxial first grinding disk (21) and second grinding disk (22), wherein a front face (211) of the first grinding disk is arranged opposite to a front face of the second grinding disk (221);

• the front face (211) of the first grinding disk comprises a group of radially distributed linear grooves (2111) and transition faces (2112) for connecting the adjacent linear grooves;
• the front face (221) of the second grinding disk comprises one or more helical grooves (2211) and transition faces (2212) for connecting the adjacent helical grooves;
• surfaces of the linear grooves (2111) comprise working faces (21111) of the linear grooves in contact with the rolling surfaces (32) of the bearing rollers to be machined during grinding machining;
• surfaces of the helical grooves (2211) comprise working faces (22111) of the helical grooves in contact with the bearing rollers during grinding machining;
• one bearing roller (3) to be machined is distributed in each linear groove (2111) of the first grinding disk along the linear groove corresponding to each intersection of the helical grooves (2211) of the second grinding disk and the linear grooves (2111) of the first grinding disk during grinding machining;
• the bearing rollers are cylindrical rollers or tapered rollers;
• a region, corresponding to each intersection, enclosed by working faces (21111) of the linear grooves of the first grinding disk and working faces (22111) of the helical grooves of the second grinding disk is a grinding machining region;
• the rolling surfaces (32) of the bearing rollers to be machined are in contact with the working faces (21111) of the linear grooves and the working faces (22111) of the helical grooves, respectively;
• the bearing rollers (3) to be machined translate along the linear grooves (2111) while rotating about the own axes (31) under the friction driving and thrusting actions of the working faces (22111) of the helical grooves;
• and the rolling surfaces (32) of the bearing rollers to be machined slide relative to the working faces (21111) of the linear grooves, to realize the grinding machining for the rolling surfaces (32) of the bearing rollers to be machined.