Bearing structure, shaft structure and replacable oil screw pump

• Main Authors: WANG SHIJIE, CUI JIANZHENG, QIU JINGSONG, ZHAO JING
• Format: Patent
• Language: Chinese; English
• Published: 29.10.2019
• Subjects: BEARINGS; BLASTING; ELEMENTS OR CRANKSHAFT MECHANISMS; ENGINEERING ELEMENTS AND UNITS; FLEXIBLE SHAFTS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SHAFTS; THERMAL INSULATION IN GENERAL; WEAPONS

The invention provides a bearing structure, a shaft structure and a replacable oil screw pump, and relates to the technical field of bearings. The bearing structure comprises an outer support barrel and n inner support barrels, wherein the outer support barrel is divided into n sections, n is an integer which is not less than 2, each inner support barrel and the corresponding section of the outersupport barrel form a partial pressure unit, and a bearing and an elastic piece are arranged in each partial pressure unit in the direction away from the force applying end. The problems of large axial load received by the bearing structure and short service life due to the limitation of the bearing to the caliber are solved, the total carrying capacity of the bearing structure is increased, the service life of the bearing structure is prolonged, and the overall reliability of equipment is increased. 本发明提供了一种轴承结构、轴结构及替油螺杆泵，涉及轴承技术领域。该轴承结构包括外支撑筒和n个内支撑筒；外支撑筒分为n节；n为不小于2的整数；每个内支撑筒与其对应节的外支撑筒形成分压单元；沿背离施力端的方向，每级分压单元内设置有轴承和弹性件