Axial thrust bearing supporting structure of crank shaft of refrigeration compressor

• Main Authors: CAO LIJIAN, WANG DAOFU, DAI JINGXIONG, HUANG HAIZHEN, WANG XINNAN, HUANG SHENGQIANG
• Format: Patent
• Language: Chinese; English
• Published: 18.07.2012
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; WEAPONS

The utility model relates to an axial thrust bearing supporting structure of a crank shaft of a mechanical-electrical integrated refrigeration compressor. The axial thrust bearing supporting structure comprises a cylinder base, a crank shaft, a piston and a connecting rod, wherein the periphery of the end face of an upper orifice of a bearing hole on the cylinder base is provided with an annular groove, the annular groove is internally provided with an axial ball thrust bearing, the bottom surface of the annular groove is provided with an annular lug boss or an interruptive annular lug boss which is positioned on the inner side of a center ring of a lower thrust ring rollaway nest of the axial ball thrust bearing, the outer diameter of the upper end face of the annular lug boss or the interruptive annular lug boss is less than or equal to the diameter of the center ring of the lower thrust ring rollaway nest, or the annular lug boss or the interruptive annular lug boss is positioned on the outer side of the c