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Abrasion-resistant alloy mortar pump impeller and manufacturing method thereof

A wear-resistant alloy and mortar pump technology, which is applied in the direction of pumps, pump components, non-variable pumps, etc., can solve the problems of thermal stress cracks, labor-intensive, high scrap rate, etc., and avoid thermal stress cracks and shrinkage cavities , Reduce production costs and improve production efficiency

Active Publication Date: 2014-11-12
吉首长潭泵业有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The impeller of the wear-resistant alloy mortar pump impeller is its core component. During the production process, it is necessary to turn the thread hole on the shaft hub of the wear-resistant alloy impeller casting. Due to the high hardness of the wear-resistant alloy casting, the processing is difficult, which is not conducive to turning the thread hole. The processing is time-consuming, labor-intensive, and material-intensive, which affects production efficiency; moreover, during the casting process of wear-resistant alloy impeller castings, the castings are prone to thermal stress cracks and shrinkage cavities due to the thick shaft and hub, resulting in a high scrap rate. High, which makes the production cost of the product higher

Method used

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  • Abrasion-resistant alloy mortar pump impeller and manufacturing method thereof

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Embodiment Construction

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] refer to figure 1 , the impeller of the present embodiment comprises front end cover 2 and rear end cover 4, and front end cover 2 and rear end cover 4 adopt wear-resistant alloy to make, and the surface of front end cover 2 is provided with front auxiliary blade 1, and the surface of rear end cover 4 is provided with There are rear auxiliary blades 5, the front end cover 2 and the rear end cover 4 are connected by blades 3, the middle part of the rear end cover 4 is provided with a shaft hub 6, and the shaft hub 6 includes a pre-embedded part 7 and a pre-embedded matching part 8. Part 7 is made of cast steel, and embedded fitting 8 is made of wear-resistant alloy. Both embedded part 7 and embedded fitting 8 are hollow cylindrical structures. The outer wall of embedded part 7 is provided with two a groove; the inner wall of th...

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Abstract

The invention relates to an abrasion-resistant alloy mortar pump impeller and a manufacturing method of the abrasion-resistant alloy mortar pump impeller. The impeller comprises a front end cover and a rear end cover. The front end cover and the rear end cover are made of abrasion-resistant alloy. The surface of the front end cover is provided with front auxiliary blades, the surface of the rear end cover is provided with rear auxiliary blades, and the front end cover and the rear end cover are connected through the blades. The middle of the rear end cover is provided with a shaft hub comprising an embedded part and an embedded matching part. The embedded part is made of cast steel, and the embedded matching part is made of abrasion-resistant alloy. Both the embedded part and the embedded matching part are of a hollow cylinder structure. The outer wall of the embedded part is provided with grooves surrounding the outer wall. The inner wall of the embedded matching part is provided with protrusions which surround the inner wall and are matched with the grooves of the outer wall. The embedded part is located in the embedded matching part, and the grooves of the embedded part and the protrusions of the embedded matching part are matched and spliced into a whole. The abrasion-resistant alloy mortar pump impeller is convenient to produce and machine, time, labor and materials are saved, production efficiency can be enhanced, and cost can be reduced.

Description

technical field [0001] The invention relates to a wear-resistant alloy mortar pump impeller and a manufacturing method thereof. Background technique [0002] Mortar pump is a kind of mechanical equipment for conveying medium containing solid particles, which is widely used in mining, electric power, chemical industry and other fields. [0003] In practical applications, most mortar pumps are made of wear-resistant alloys. [0004] The impeller of the wear-resistant alloy mortar pump impeller is its core component. During the production process, it is necessary to turn the thread hole on the shaft hub of the wear-resistant alloy impeller casting. Due to the high hardness of the wear-resistant alloy casting, the processing is difficult, which is not conducive to turning the thread hole. The processing is time-consuming, labor-intensive, and material-intensive, which affects production efficiency; moreover, during the casting process of wear-resistant alloy impeller castings, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/18F04D29/02B23P15/00
CPCF04D29/2294
Inventor 宁兆祥宁晋昆
Owner 吉首长潭泵业有限公司
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