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Method for connecting titanium aluminum turbine and steel shaft

A turbine and steel shaft technology, applied in the field of turbines, can solve the problems that limit the application of titanium-aluminum turbines, and achieve the effect of simple and easy connection method

Inactive Publication Date: 2013-11-27
CHINA NORTH ENGINE INST TIANJIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This connection difficulty limits the application of titanium-aluminum turbines

Method used

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  • Method for connecting titanium aluminum turbine and steel shaft
  • Method for connecting titanium aluminum turbine and steel shaft

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Embodiment Construction

[0015] Such as figure 1 As shown, a method for connecting a titanium-aluminum turbine and a steel shaft, which includes a titanium-aluminum turbine 1, a turbine back plate 2, a turbine internal thread 3, a pressure relief well 4, a steel shaft 5 and a shaft end matching thread 6, titanium-aluminum The turbine 1 and the steel shaft 5 are connected through the turbine back plate 2, the external thread of the shaft end of the steel shaft 5 is connected with the internal thread of the turbine back plate 2, and the titanium-aluminum turbine 1 and the turbine back plate 2 are firmly connected by bolts.

[0016] The external thread of the shaft end of the steel shaft 5 and the internal thread of the turbine back plate 2 are any one of standard threads and non-standard threads.

[0017] The thread length of the shaft end of the steel shaft 5 cannot be shorter than the thread diameter, and the number of threads is not less than 3, so as to ensure the strength of the connection.

[001...

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PUM

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Abstract

The invention relates to a method for connecting a titanium aluminum turbine and a steel shaft. The method comprises the titanium aluminum turbine (1), a turbine dorsal disk (2), a turbine internal thread (3), a pressure relief well (4), the steel shaft (5) and a shaft end matching thread (6), wherein the titanium aluminum turbine (1) is connected with the steel shaft (5) through the turbine dorsal disk (2); the shaft end external thread of the steel shaft (5) is connected with the internal thread of the turbine dorsal disk (2); the titanium aluminum turbine (1) is fixedly connected with the turbine dorsal disk (2) through bolts. The method overcomes the difficulties caused by welding connection, and the connecting method is simple and convenient and easy to implement.

Description

technical field [0001] The invention belongs to the technical field of turbines, and in particular relates to a method for connecting a titanium-aluminum turbine and a steel shaft. Background technique [0002] Titanium-aluminum turbines are lighter than nickel-based aluminum materials, such as Inconel 713 or K418 turbines, and are especially suitable for automotive turbochargers. Because for automotive turbochargers, the transient response of the supercharger is very important. However, titanium-aluminum materials are difficult to weld with turbine steel shafts. At the same time, titanium-aluminum materials are also difficult to cast, and thus reduce the material strength of the turbine centerline. The turbine centerline is where the turbine connects to the shaft. This connection difficulty limits the application of titanium-aluminum turbines. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a method for con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D1/06
Inventor 陈化王增全吴新涛
Owner CHINA NORTH ENGINE INST TIANJIN
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