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Anti-roulette burst blade

A roulette and blade technology, applied in the field of roulette burst-proof blades, can solve the problems of heavy roulette weight, bursting of turbine disks, etc., and achieve the effects of reducing the rotation speed of the roulette, avoiding bursting, and improving safety.

Active Publication Date: 2015-10-28
CHINA AVIATION POWER MACHINE INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a disc burst-proof blade to solve the technical problems of the existing turbine disc burst risk or the mass of the disc is too heavy

Method used

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Embodiment Construction

[0031] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

[0032] refer to figure 1 , the preferred embodiment of the present invention provides a roulette burst-proof blade, which is used to cooperate with the roulette body 10 , and the blade 20 is arranged on the outer rim 11 of the roulette body 10 . In the embodiment of the present invention, a weak section is provided on the blade 20 near the outer rim 11 to ensure that the blade 20 breaks at the weak section before the roulette body 10 . In the embodiment of the present invention, by reducing the force bearing area at the weak section of the blade 20, when the roulette disk body 10 is close to the burst speed, the blade 20 breaks at the weak section before the roulette disk body 10, and a certain blade 20 After the weak section is broken, other blade...

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PUM

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Abstract

The invention discloses a blade capable of preventing a wheel dish from being cracked. The blade comprises a wheel dish body and a blade body arranged on the outer wheel edge of the wheel dish body, and a weak section is arranged at the portion, close to the outer wheel edge, of the blade body to guarantee that the weak section of the blade body is cracked in advance of the wheel dish body. According to the blade, the weak section having the protecting effect is arranged at the position where the blade body is connected with the wheel dish body, so that the weak section of the blade body is cracked in advance when the wheel dish body rotates at a high speed, the wheel dish body acutely swings after the weak section of the blade body is cracked to be in contact with a static piece, the rotation speed of the wheel dish body is lowered, cracking of the wheel dish body is avoided, and the operation safety performance of an air vehicle is improved.

Description

technical field [0001] The invention relates to the field of engines, in particular to an anti-burst blade for an aeroengine. Background technique [0002] The safety of aero-engines is particularly important, especially for civil aero-engines, where safety is the primary consideration in its design. The turbine disk is a key part of the engine. Once it bursts along the meridian, it will release huge energy and cause disasters. Therefore, it is absolutely not allowed to happen in principle. In the prior art, in order to prevent the turbine disc from bursting along the meridian plane, the disc is designed to have a very high rupture speed. The measure is to design the disc to be thicker and the blades to have a larger load-bearing capacity. The prior art relies on thickening and adding weight to increase the bursting speed of the turbine disk, so that the turbine disk is either too heavy, or there is a possibility of bursting along the meridian plane. Contents of the inven...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01D5/14
Inventor 蔡显新陈亚农王涛
Owner CHINA AVIATION POWER MACHINE INST