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Rotor axial regulator

An adjustment device, axial technology, applied to the components of the pumping device for elastic fluids, non-variable displacement pumps, machines/engines, etc., can solve the problem of not being able to adjust in both directions

Inactive Publication Date: 2007-01-03
SHANGHAI KAIQUAN PUMP IND GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The task of the present invention is to provide an improved rotor axial adjustment device, which solves the problem that the existing adjustment device can only adjust the axial clearance in one direction but not in two directions.

Method used

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Embodiment Construction

[0020] see figure 2 , the present invention is an axial adjustment device of a long-axis submerged chemical pump, which is equipped with a bearing bracket 27 and a bearing body 26, and the shaft 24 runs through the bearing body 26. Angular contact ball bearings 23 used in pairs are arranged in the bearing body 26 , and the retaining sleeve 20 is installed between the angular contact ball bearings 23 . Bearing cover 28 is installed on bearing body 26, and is fastened by cover screw 22.

[0021] combined reference Figure 3 to Figure 9 , A shaft sleeve 21 is installed on the shaft section in the bearing body 26, the shaft 24 and the shaft sleeve 21 are clearance fit, and the angular contact ball bearing 23 is installed on the shaft sleeve 21. The large-diameter end of the shaft sleeve 21 is provided with a bearing positioning step 211 , and the angular contact ball bearing 23 is positioned and installed in the bearing positioning step 211 . The small-diameter end of the shaft...

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Abstract

The present invention relates to long-shaft pump, in particular, it relates to an axial regulation device of long-shaft submerged chemical pump. It is characterized by that on the described shaft a shaft sleeve is mounted, said shaft and shaft sleeve are clearance fit, the angular contact ball bearing is mounted on the shaft sleeve, the locking nut is mounted on the minor diameter end of said shaft sleeve and is used for axially positioning said angular contact ball bearing, on the major diameter end of said shaft sleeve a bearing positioning step is set, the angular contact ball bearing is positioned and mounted in the bearing positioning step, on the end pace of major diameter end of said shaft sleeve a regulation nut is mounted, on the regulation nut a locking nut also is mounted, said regulation nut and locking nut are mounted on the shaft. Said invention can utilize regulation of position of said regulation nut on the shaft to implement two-way regulation of axial gap.

Description

[technical field] [0001] The invention relates to a long-axis pump, in particular to an axial adjustment device for a long-axis submerged chemical pump. [Background technique] [0002] The long-axis submerged chemical pump is a vertical pump whose working part is immersed in the medium. The uppermost end of the rotor support method is a pair of angular joint ball bearings, which are mainly used to bear the axial force, the weight of the rotor, and limit The rotor has axial movement and radial deflection, and the rest are sliding bearings, which only bear radial force. [0003] In order to meet the requirements of the submerged depth, the pump is usually made relatively long, up to 6-7m, because A generally needs to be connected to the shaft. It can be seen from the dimensional chain of the shaft assembly that the normal accumulation of design tolerances is generally 2-5mm. In order to avoid the axial interference between the front and rear mouth rings of the impeller and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/62F04D29/04
Inventor 刘建军卫红全吴贤芳
Owner SHANGHAI KAIQUAN PUMP IND GROUP
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