Spiral sealing structure for screw pump

The utility model relates to a sealing structure for a screw pump, in particular to a spiral sealing structure for the screw pump. The spiral sealing structure for the screw pump comprises a sleeve, a flange, a screw rod, a main shaft, a stuffing box, wherein a thread structure is formed in the main...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	YANG DIMU, LIANG DONG, ZHANG BO, TI JING, MA RONGWEI, WANG LIBIN, LI FANGRONG, ZHOU MIAO, NI ZHIYUAN, ZHANG BAOGUO, WANG JIANHUA, ZHANG CHANGSONG, WANG XIUZHI, PEI XIAOFENG, DOU BAOYU
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING HEATING LIGHTING MECHANICAL ENGINEERING POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS WEAPONS
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Beschreibung
Zusammenfassung:	The utility model relates to a sealing structure for a screw pump, in particular to a spiral sealing structure for the screw pump. The spiral sealing structure for the screw pump comprises a sleeve, a flange, a screw rod, a main shaft, a stuffing box, wherein a thread structure is formed in the main shaft, the rotating direction of the thread structure is opposite to that of the screw rod, and the thread structure is arranged in the stuffing box. Compared with the prior art, the thread structure with the rotating direction opposite to that of the screw rod is arranged on the main shaft has the advantages of good sealing effect and balance stress.