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Fan rotor blade mounting structure

A blade installation, fan rotor technology, applied in jet propulsion devices, components of pumping devices for elastic fluids, non-variable-capacity pumps, etc., to achieve the effect of preventing vibration

Inactive Publication Date: 2016-08-31
AECC SHENYANG ENGINE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a fan rotor blade installation structure to solve or at least alleviate at least one of the problems in the background art

Method used

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Embodiment Construction

[0023] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiments of the present invention. Throughout the drawings, the same or similar reference numbers refer to the same or similar elements or elements having the same or similar functions. The described embodiments are some, but not all, of the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. The embodiments of the pre...

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Abstract

The invention discloses a fan rotor blade mounting structure, and relates to the technical field of turbine fan engines. According to the fan rotor blade mounting structure, a rotor blade is mounted on a fan wheel disc (4). The fan rotor blade mounting structure is characterized by comprising a specially-shaped flow path plate (1) and blades (2), wherein the specially-shaped flow path plate (1) is fixedly connected with the fan wheel disc (4), and is used for limiting the blades (2) from vibrating in a circumferential direction of the fan wheel disc (4); the blades (2) are fixedly connected with fan wheel disc (4) through tenons; and the specially-shaped flow path plate (1) and the blades (2) are alternatively arranged in the circumferential direction of the fan wheel disc (4). The fan rotor blade mounting structure has the beneficial effects that: the blades are not provided with edge plates, the specially-shaped flow path plate is arranged between the two adjacent blades, and the specially-shaped flow path plate replaces edge plates on the current blades to position the blades, so that the blades are prevented from vibrating in the circumferential direction of the fan wheel disc, and stress at roots of the blades is reduced.

Description

technical field [0001] The invention relates to the technical field of turbofan engines, in particular to a fan rotor blade mounting structure. Background technique [0002] The fan blade is one of the most representative and important parts of the turbofan engine, which directly affects the performance of the turbofan engine. In modern high-bypass ratio civil turbofan engines, the fan blades are required to maintain the structural integrity of the blades after a certain degree of impact from foreign objects, meet the requirements of service life, and maintain a high level of performance under various working conditions. [0003] In the late 1980s, British Rolls-Royce, American GE and Pratt & Whitney, and French SNECMA successively invested a lot of manpower, material and financial resources in the research of new fan blades, and the design concept of small aspect ratio and shoulderless fan blades came into being. It has the following irreplaceable advantages: 1. Improve th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/30F04D29/66F04D29/08F02K3/04
CPCF04D29/30F02K3/04F04D29/083F04D29/668
Inventor 张岩印雪梅马晓健
Owner AECC SHENYANG ENGINE RES INST