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Metal automatic grinding seal device

A sealing device, automatic technology, applied in the direction of engine sealing, engine components, mechanical equipment, etc., to achieve the effect of long service life, reduced maintenance times and maintenance costs

Inactive Publication Date: 2015-11-25
CHENGDU NINGJIA HONGFU TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Based on the above background, the purpose of the present invention is to solve the problem that the existing air sealing device cannot 100% ensure a good sealing state under high temperature and high pressure inside the engine, and propose a new type of sealing device matching this type of engine

Method used

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  • Metal automatic grinding seal device

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Embodiment Construction

[0010] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0011] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0012] like figure 1 as shown, one A metal automatic running-in sealing device, including a rotor assembly 1, a sealing tooth 3, a sealing ring 6, and a stator assembly 8, wherein the sealing tooth 3 is provided with four tooth tips 4, and the tooth tips 4 are sprayed with high temperature resistant The grinding material body; the sealing ring 6 is provided with a honeycomb 5, and when working, the tooth tip 4 cuts into the honeycomb 5 to form a sealing fit.

[...

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Abstract

The invention discloses a metal automatic grinding seal device. The metal automatic grinding seal device comprises a rotor assembly (1), a seal labyrinth (3), a seal ring (6) and a stator assembly (8) and is characterized in that a plurality of tooth tips (4) are arranged on the seal labyrinth (3), a high-temperature-resistant and wear-resistant material body is sprayed on the tooth tips (4), a honeycomb (5) is arranged on the seal ring (6), and during work, the tooth tips (4) extend into the honeycomb (5) so as to form seal fit. According to the invention, four tooth tips are arranged on the seal labyrinth, the high-temperature-resistant, wear-resistant and high-hardness material is sprayed on the tooth tips, when the rotor assembly rotates at a high speed, the diameters of the tooth tips are increased under the action of centrifugal force, and at the same time, the tooth tips grind the honeycomb, extend into the honeycomb and form close fit with the honeycomb, so that a great seal effect is played. As the seal components, such as the tooth tips and the honeycomb, are all made of high-temperature alloy, the service life of the seal device is longer, and later maintenance times and maintenance fees are also greatly reduced.

Description

technical field [0001] The invention relates to an aviation sealing device, in particular to a metal automatic running-in sealing device for an aircraft engine. Background technique [0002] In the field of aviation, aero-engines are subjected to a harsher working environment than ordinary engines, and the internal high temperature and high pressure require that the sealing device on it must have 100% working reliability. The gas sealing device adopted by the engine in the prior art has relatively stable reliability in the "normal" high temperature and high pressure environment. However, a certain type of aero-engine currently developed by the applicant requires the ability to withstand higher temperatures (20% higher than the existing high temperature) and higher pressure (25% higher than the existing high pressure). The advanced gas sealing device is easy to fail under such harsh conditions, causing the engine to run abnormally. Therefore, for this type of aero-engine, i...

Claims

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Application Information

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IPC IPC(8): F16J15/16
CPCF16J15/16
Inventor 周继德潘华林
Owner CHENGDU NINGJIA HONGFU TECH CO LTD
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