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Three degree of freedom regulating device of moving blades in fluid machinery

A technology of fluid machinery and adjustment devices, which is applied in the direction of mechanical equipment, machines/engines, engine components, etc., and can solve the problems of blade adjustment, tedious, time-consuming and laborious, etc.

Inactive Publication Date: 2012-05-23
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, most of the adjusting devices of the moving blades can only adjust part of the degrees of freedom of the blades (one or two degrees of freedom). The linkage adjustment of the degree of freedom, so the overall efficiency is relatively low, wasting a lot of energy; the adjustment device of a small number of moving blades can adjust the three degrees of freedom of the blade, but it cannot adjust the blade in real time under the working conditions of mechanical changes. To adjust, it needs to be adjusted after shutting down and then restarted. It is cumbersome to use, time-consuming and labor-intensive

Method used

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  • Three degree of freedom regulating device of moving blades in fluid machinery
  • Three degree of freedom regulating device of moving blades in fluid machinery
  • Three degree of freedom regulating device of moving blades in fluid machinery

Examples

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Embodiment Construction

[0032] refer to figure 1 , is a three-degree-of-freedom adjustment device for moving blades in an axial-flow fluid machine, including a support frame 1 with a sleeve 2 , a central shaft 3 , hubs 4 , 5 , 6 , 7 and moving blades 8 . The hub consists of a hub cover 4, an upper hub 5, a lower hub 6 and a hub cover 7 fixed by bolts in sequence along the axis of the central axis, and three rotor blades 8 are arranged between the upper hub 5 and the lower hub 6 in the circumferential direction. The shaft sleeve 2 is concentrically matched with the upper end of the central shaft 3, and three oil pipes 40 are connected to the shaft sleeve 2, respectively communicating with the first, second, and third upper oil chambers 9, 10, 11.

[0033] refer to figure 2 , image 3 , the shaft sleeve and the upper part of the central shaft 3 are provided with three oil grooves corresponding to each other in the axial direction, forming the first, second and third upper oil chambers 9, 10 and 11 ...

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Abstract

The invention relates to a fluid machinery with moving blades and discloses a three degree of freedom regulating device of moving blades in the fluid machinery. The regulating device is provided with a telescopic cylinder, a lower swing cylinder and an upper swing cylinder which are subject to hydraulic control. The regulating device can adapt to working conditions with varied operating conditions of the fluid machinery and perform three degree of freedom regulation on the moving blades in a real-time manner without stop so as to achieve industrial effects of easy regulation, efficiency improvement and energy saving.

Description

technical field [0001] The invention relates to a fluid machine with blades, in particular to a three-degree-of-freedom adjustment device for moving blades in the fluid machine. Background technique [0002] Blade adjustment technology has always been an important research topic in the field of fluid machinery. The adjustment of blades in fluid machinery is mainly divided into static blade adjustment, moving blade adjustment and the linkage adjustment of the two. The purpose of blade adjustment is to adapt to the performance of fluid machinery under variable conditions. To meet the requirements, improve the internal flow structure of fluid machinery, reduce energy loss, and obtain maximum working efficiency. [0003] At present, the adjustment of the blades in fluid machinery is mainly aimed at the static blades. The adjustment of the static blades is relatively simple, and the adjustment technology is relatively mature, but the adjustment of the moving blades still needs fu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01D7/00
Inventor 刘小民许运宾席光周海洋
Owner XI AN JIAOTONG UNIV