Motor pump set with motion converting mechanism - transforming rotary to translatory movement process with eccentric device comprising drive shaft movable in housing

摘要

The drive shaft (1) is held eccentrically over its complete length in the bearing arrangement of the housing (2,2'). This bearing arrangement is formed by two eccentrically formed bearing rings (3,3') fitted in an outer bearing ring (5,5') with several roller bodies of a roller bearing. The area of the eccentric bearing ring in direct contact with the drive shaft has a press fit. The bearing ring arranged on the eccentric drive shaft is able to rotate as a slide bearing ring directly with the rotary frequency of the driven shaft in the housing. The eccentric bearing arrangement of the drive shaft is of the two point type, and is arranged on the end area of the shaft for insertion in the housing. The two bearing rings conform in their eccentricity both in extent and direction. ADVANTAGE - Reduced size and produces little noise.