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Closed impeller provided with twisted blades and applicable to water pump and machining technology of closed impeller

A technology of twisted blades and closed impellers, which is applied in the field of twisted blades closed impellers of water pumps and its processing technology, can solve the problems of shortening the manufacturing cycle of closed impellers, reducing the vibration of closed impellers, and difficult processing, so as to improve reliability And hydraulic performance, shorten the manufacturing cycle, the effect of high structural consistency

Inactive Publication Date: 2019-06-21
SHANGHAI MICROPOWERS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The purpose of the present invention is to provide a water pump twisted blade closed impeller and its processing technology, which greatly improves the manufacturing accuracy of the closed impeller, the surface smoothness and the uniformity of the closed impeller weight, and greatly shortens the closed impeller. The manufacturing cycle solves the problems of large distortion and high processing difficulty in the overall milling process of multiple blades, and at the same time improves the structural reliability and hydraulic performance of the closed impeller and reduces the vibration of the closed impeller

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  • Closed impeller provided with twisted blades and applicable to water pump and machining technology of closed impeller
  • Closed impeller provided with twisted blades and applicable to water pump and machining technology of closed impeller
  • Closed impeller provided with twisted blades and applicable to water pump and machining technology of closed impeller

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Embodiment Construction

[0049] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation manners of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention, and those skilled in the art can obtain other accompanying drawings based on these drawings and obtain other implementations.

[0050] In order to make the drawing concise, the parts related to the present invention are only schematically shown in each drawing, and they do not represent the actual structure of the product. In addition, to make the drawings concise and easy to understand, in some drawings, only one of the components having the same structure or function is schematically shown, or only one of them is marked. Herein, "a" not only means "only one", but also means "more than one".

[0051] In ...

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Abstract

The invention discloses a closed impeller provided with twisted blades and applicable to a water pump and a machining technology of the closed impeller. The impeller comprises single twisted blades; aplurality of single twisted blades are assembled sequentially to form the closed impeller; each single twisted blade is formed through overall milling by the aid of a five-axis CNC machine tool; assembled positions of every two adjacent single twisted blades are connected through welding and form welding lines; and the number of the welding lines is equal to that of the single twisted blades of the closed impeller. According to the impeller and the technology, the manufacturing accuracy, the surface smoothness and the weight uniformity of the closed impeller are substantially improved, the manufacturing cycle of the closed impeller is substantially shortened, the problems of large machining difficulty and the like of the overall large-distortion and multi-blade milling technology are solved, meanwhile, the structural reliability and the hydraulic performance of the closed impeller are improved, and vibration of the closed impeller is reduced.

Description

technical field [0001] The invention relates to the technical field of pump impeller manufacturing technology, in particular to a closed impeller with twisted blades of a water pump and its processing technology. Background technique [0002] At present, several common water pump impeller processing technologies are: [0003] 1) Traditional open mold casting: At present, low-vibration noise and high-efficiency blades are usually designed by increasing the number of blades and distorting blades. It is often difficult to achieve impellers with large blade space distortion and a large number of blades by using traditional open mold casting methods, and the cost of casting impellers is high. , Long production cycle, low precision, rough surface, low precision and poor consistency of impeller produced by mold casting, not suitable for precision manufacturing of impeller, let alone low-vibration, noise and high-efficiency impeller water pump production; [0004] 2) Stamping + riv...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00B23C3/18F04D29/24
Inventor 于健李启玉崔立军黄司马张化川王鑫宋宇袁巍
Owner SHANGHAI MICROPOWERS
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