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 a base, 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 water pump, an oil chamber is arranged between the motor chamber and the shaft chamber. As shown in FIG. The function of lubricating at the same time, but because of the centrifugal force generated during rotation, the lubricating oil L will have a hollow vortex phenomenon around the mandrel 2 and the oil sealing device 3A, 3B, and the lubricating oil L cannot approach the mandrel 2 and the oil sealing device 3A , 3B, so that the effect of lubrication is not good; therefore, there is a kind of lubricating oil retaining device to come out, as shown in Figure 2, around the outside of the mandrel 2 of the oil chamber 1 and its oil seal device 3A, 3B, an annular The wall body 4 is provided with an oil inlet 5 and an oil outlet 6 on the peripheral wall of...

AI Technical Summary

Problems solved by technology

[0002] In the existing submerged water pump, an oil chamber is arranged between the motor chamber and the shaft chamber. As shown in FIG. The function of lubricating at the same time, but because of the centrifugal force generated during rotation, the lubricating oil L will have a hollow vortex phenomenon around the mandrel 2 and the oil sealing device 3A, 3B, and the lubricating oil L cannot approach the mandrel 2 and the oil sealing device 3A , 3B, so that the effect of lubrication is not good; therefore, there is a kind of lubricating oil retaining device to come out, as shown in Figure 2, around the outside of the mandrel 2 of the oil chamber 1 and its oil seal device 3A, 3B, an annular The wall body 4 is provided with an oil inlet 5 and an oil outlet 6 on the peripheral wall of the annular wall body 4, so that the lubricating oil L can circulate in and out of the annular wall body 4, and the oil can be reduced by the annular wall body 4. In the scope of the vortex phenomenon generated by the mandrel 2, in order to improve the lubrication effect, these structural designs using the lubricating oil retaining device around the mandrel 2 have already obtained many patent announcements, such as announcement No. 350007, announcement No. No. 544491 etc.

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