Submerged pump shaft seal lubricanting oil retaining device

Abstract

The invention relates to a submerged pump, in particular to a retaining device for lubricating oil of a submerged pump shaft gland, which better eliminates the lubricating oil vortex phenomenon that occurs when a spindle rotates in an oil chamber of the submerged pump. The invention is characterized in that: the retaining device is a hollow main body which is integrally molded and provided with abase, the center of the base is provided with a wavy circular hole, an upper end of the base is provided with a wavy body part with a predetermined height which extends upwardly along the circumference of the circular hole and is formed by a plurality of prominent costal margins and a plurality of concave costal margins, a lower end of the base is provided with a plurality of support columns which are convex downwards. The retaining device for lubricating oil of the submerged pump shaft gland can better eliminate the vortex phenomenon around the spindle and improve the lubrication action.

Description

technical field [0001] The invention relates to a submerged water pump, in particular to a lubricating oil retaining device for the shaft seal of the submerged water pump. Background technique [0002] In the existing submerged pump, an oil chamber is arranged between the motor chamber and the shaft chamber, such as figure 1 As shown, there is an appropriate amount of lubricating oil L in the oil chamber 1 to provide the function of lubricating the spindle 2 and the oil seal devices 3A, 3B during rotation. However, due to the centrifugal force generated during rotation, the lubricant L will be on the spindle. 2 and the oil seal device 3A, 3B have a hollow vortex phenomenon, and the lubricating oil L cannot be close to the spindle 2 and the oil seal device 3A, 3B, so that the lubrication effect is not good; therefore, there is a lubricating oil retaining device that comes out, such as figure 2 As shown, an annular wall 4 is provided around the outside of the spindle 2 of th...

AI Technical Summary

Problems solved by technology

[0002] In the existing submerged pump, an oil chamber is arranged between the motor chamber and the shaft chamber, such as figure 1 As shown, there is an appropriate amount of lubricating oil L in the oil chamber 1 to provide the function of lubricating the spindle 2 and the oil seal devices 3A, 3B during rotation, but due to the centrifugal force generated during rotation, the lubricating oil L will be on the spindle 2 and the oil seal devices 3A, 3B have a hollow vortex phenomenon, and the lubricating oil L cannot be close to the mandrel 2 and the oil seal devices 3A, 3B, so that the lubrication effect is not good; therefore, there is a lubricating oil retaining device. figure 2 As shown, an annular wall 4 is provided around the outside of the spindle 2 of the oil chamber 1 and its oil seals 3A, 3B, and an oil inlet 5 and an oil outlet 6 are perforated on the peripheral wall of the annular wall 4 , so that the lubricating oil L can circulate in and out of the annular wall body 4, and the scope of the vortex phenomenon generated in the spindle 2 can be reduced through the annular wall body 4, so as to improve the lubrication effect. The structural design of the lubricating oil retaining device has already obtained several patent announcements, such as Announcement No. 350007, Announcement No. 544491, etc.

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