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Simple-to-assemble reusable balancing device and assembling method

A balancing device and simple technology, applied to the components of pumping devices for elastic fluids, non-variable-capacity pumps, pump components, etc. Balance results are affected and other issues, to simplify the rotor balancing process, save the balancing cycle, and improve the rotor balancing efficiency.

Active Publication Date: 2020-12-25
AECC SICHUAN GAS TURBINE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the number of disassembly and assembly of fasteners is limited. When a certain number of disassembly and assembly is reached, new fasteners need to be replaced to ensure reliable connection of the rotor, resulting in greater waste
The existing balance device is composed of screws and locking pieces and the main body of the balance weight. During use, the locking piece needs to be deformed to lock the screws. The screws and the main body of the balance weight are connected by threads; when the balance device is disassembled, the lock The deformed shape and thread of the blade change, and the balance result of the rotor will be affected after the balance device is installed again, so the balance device cannot be used repeatedly

Method used

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  • Simple-to-assemble reusable balancing device and assembling method
  • Simple-to-assemble reusable balancing device and assembling method
  • Simple-to-assemble reusable balancing device and assembling method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] In this embodiment, figure 1 It is a schematic diagram of the balance device after assembly, such as figure 1 As shown, a reusable balancing device with simple assembly is provided, the balancing device includes a rotor blisk 1 and a balancing weight assembly, and the balancing weight assembly includes a balancing weight cap 2, a spring 3, a limiter 4, and a ball I5 , ball II 7 and balance weight main body 6;

[0029] image 3 It is a schematic diagram of the structure of the balance weight cap, such as image 3 As shown, the balance weight cap 2 is a cylindrical structure with a counterbore, wherein the left figure is a top view, and the right figure is an A-A sectional view. The balance weight cap 2 is provided with a first through hole, and a ball socket is provided at the intersection of the first through hole and the counterbore; the balance weight cap 2 is provided with a channel perpendicular to the direction of the first through hole.

[0030] figure 2 It ...

Embodiment 2

[0036] This embodiment provides an assembly method of a rotor balancing device, using the above-mentioned balancing device, the assembly method includes:

[0037] The fixed end of the balance weight main body 6 passes through the installation through hole of the rotor blisk 1, and the installation end of the balance weight main body 6 is limited to one side of the rotor blisk 1; the spring 3 is arranged in the second through hole, and the ball I5 and the ball II7 Located at both ends of the spring 3 and in the channel;

[0038] Rotate the balance weight cap 2 to make the ball I5 and ball II7 roll from the channel to the ball socket 25, make the spring 3 in a stretched state, and connect the balance weight main body 6 and the balance weight cap 2.

[0039] Further, the stop plane on the mounting end of the balance weight main body 6 is in contact with the rotor blisk 1 to prevent the balance weight main body 6 from rotating when the rotor moves.

[0040] In this embodiment, th...

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PUM

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Abstract

The invention provides a simple-to-assemble reusable balancing device. The simple-to-assemble reusable balancing device comprises a rotor blade disc (1) and a balancing block assembly, wherein the balancing block assembly comprises a balancing block cover hood (2), a spring (3), an amplitude limiter (4), a ball I (5), a ball II (7) and a balancing block main body (6). According to the simple-to-assemble reusable balancing device, a rotor balance block is designed to be of a non-threaded structure, the balance block can be assembled and disassembled through a simple tool, and the assembling performance of the rotor balance block is improved.

Description

technical field [0001] The invention belongs to the design field of aero-engine compressors, and in particular relates to a reusable balancing device with simple assembly. Background technique [0002] The core engine is a vital core component of an aero-engine. It is in a "three-high" (high temperature, high pressure, and high speed) working environment, and its working status will have a huge impact on the entire engine. The stable operation of the rotor of the core engine is the basic guarantee for the safe operation of the engine. The introduction of engine rotor imbalance is the main cause of rotor vibration. [0003] There are many ways to balance the rotor, such as the removal of excess material, or the addition of balance weights and so on. [0004] During the actual use of the engine, affected by the state of use, the balance of the engine rotor continues to deteriorate, requiring regular maintenance and re-balancing of the rotor, resulting in the rotor needing to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/66F04D29/26
CPCF04D29/662F04D29/26
Inventor 陈晓文陈佳钟明桥赵亮亮
Owner AECC SICHUAN GAS TURBINE RES INST
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