Mechanical sealing structure for permanent magnet motor pump

• Main Authors: WEI HONGTAO, WANG ZONGHONG, SUN ZHIXIA, LI MENGYANG
• Format: Patent
• Language: Chinese; English
• Published: 01.11.2022
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; WEAPONS

The utility model belongs to the technical field of motor pumps, and particularly relates to a mechanical sealing structure for a permanent magnet motor pump, which comprises a pump cover and a pump shaft of the permanent magnet motor pump, the pump shaft penetrates through the pump cover, the surface of the pump cover protrudes outwards to form a protruding ring, a sealing ring is installed inside the protruding ring, and a sealing assembly is installed outside the sealing ring. Through the magnetic force between the extrusion ring and the magnetic ring, the extrusion ring is inserted into the groove, then the sealing ring is extruded to be tightly attached to the outer portion of the pump shaft, the sealing ring is still extruded to be attached to the pump shaft after being abraded, the sealing performance is improved, and the service life of the sealing ring is prolonged. 本实用新型属于电机泵技术领域，具体的说是一种永磁电机泵用机械密封结构，包括永磁电机泵的泵盖和泵轴，所述泵轴贯穿泵盖，所述泵盖的表面向外凸起形成凸起环，所述凸起环的内部安装有密封圈，所述密封圈的外部安装有密封组件；通过挤压环与磁环之间的磁性力，使挤压环插入凹槽的内部，进而挤