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A shaft sleeve for a centrifugal pump

A technology for centrifugal pumps and shaft sleeves, which is applied to parts, pumps, and pump components of pumping devices for elastic fluids, and can solve problems such as reduced precision, reduced quality of the rotating shaft, and increased surface resistance of the rotating shaft. gap effect

Active Publication Date: 2018-11-02
ZHENJIANG FUTAIKE FLUID TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, when the centrifugal pump is working at high speed, the powdery material is easy to adhere to the surface of the shaft. After a period of use, it is easy to cause the surface resistance of the shaft to increase, resulting in a decrease in precision and a decrease in the quality of the shaft. unable to meet production needs

Method used

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  • A shaft sleeve for a centrifugal pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0016] A shaft sleeve for a centrifugal pump, including a shaft 1, such as figure 1 As shown, the head of the rotating shaft 1 has a stepped structure, a bushing 2 is sleeved on the rotating shaft 1, and a key 7 for positioning the bushing 2 is arranged on the rotating shaft 1, and the bushing 2 There is a certain distance from the head of the rotating shaft 1 , the purpose of which is to facilitate the socketing of the bushing 2 on the rotating shaft 1 and improve assembly efficiency.

[0017] Between the head of the rotating shaft 1 and the bush 2, a filler 4 is provided, the height of the filler 4 is 1 / 2 of the height of the bush 2, and the filler 4 is passed through a fastener It is connected with the rotating shaft 1 ; a sealing ring 3 is installed on the periphery of the head of the rotating shaft 1 , and the sealing ring 3 is engaged with the bushing 2 .

[0018] refer to figure 1 In this embodiment, the length of the sealing ring 3 exceeds the head of the rotating sh...

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Abstract

The invention discloses a shaft sleeve for a centrifugal pump. The shaft sleeve comprises a rotating shaft, the head of the rotating shaft is of a stepped structure, the rotating shaft is sleeved with a bush in a positioning manner, a certain distance exists between the bush and the head of the rotating shaft, and a filler is arranged between the head of the rotating shaft and the bush; and the height of the filler is smaller than the height of the bush, the filler is connected with the rotating shaft through a fastener, and a sealing ring is arranged on the periphery of the head of the rotating shaft and is buckled with the bush. Through the technical scheme, the mounting efficiency and the sealing effect can be improved.

Description

technical field [0001] The invention relates to the technical field of centrifugal pumps, in particular to a shaft sleeve for a centrifugal pump, which can protect a rotating shaft. Background technique [0002] In the prior art, when the centrifugal pump is working at high speed, the powdery material is easy to adhere to the surface of the shaft. After a period of use, it is easy to cause the surface resistance of the shaft to increase, resulting in a decrease in precision and a decrease in the quality of the shaft. Unable to meet production needs. Contents of the invention [0003] In order to solve the above technical problems, the present invention provides a shaft sleeve for a centrifugal pump, which is very suitable for a shaft with a stepped structure by using a shaft sleeve structure composed of a bush and a sealing ring, and has high installation efficiency and tightness. Strong advantage. [0004] Technical scheme of the present invention is as follows: [000...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/04F04D29/043F04D29/12
CPCF04D29/04F04D29/043F04D29/12F05D2240/55F05D2240/60
Inventor 袁丹青丛小青
Owner ZHENJIANG FUTAIKE FLUID TECH CO LTD