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Dynamic balance device of cantilever turbine rotor

A turbine and rotor technology, applied in the field of dynamic balance testing, can solve the problems of unbalanced measurement and phase unrepeatable, cantilever turbine rotor tilting, unstable measurement data, etc., to solve the problem of speed fluctuation and high reliability , to avoid the effect of tilting the head

Inactive Publication Date: 2022-08-05
杭州华翊科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (1) The cantilever turbine rotor will warp during dynamic balancing, and the spring of the traditional adjustable platen roller will cause the measurement data to be unstable;
[0005] (2) The traditional belt drive will apply a large belt tension to the rotor shaft, and the fluctuation of the belt speed will also cause the fluctuation of the rotor speed. Therefore, the measured unbalance and phase are often not repeatable, and the reliability of the result is not high.

Method used

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  • Dynamic balance device of cantilever turbine rotor
  • Dynamic balance device of cantilever turbine rotor
  • Dynamic balance device of cantilever turbine rotor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] like figure 1 , 2 and 3, a dynamic balancing device for a cantilevered turbine rotor, comprising:

[0069] Machine base 2;

[0070] Two sets of support and swing frame toolings are arranged on the machine tool base 2 oppositely and at intervals. The two sets of support and swing frame toolings are used to define the rotating shaft 11 of the cantilevered turbine rotor 1. The two sets of support and swing frame toolings are respectively the first support and swing frame tooling. 3a and the second support swing frame tooling 3b;

[0071] The blowing mechanism 4 is used to blow the blades 12 of the cantilevered turbine rotor 1 to make the cantilevered turbine rotor 1 rotate;

[0072] The rotational speed measuring mechanism 5 is used to measure the rotational speed of the cantilevered turbine rotor 1;

[0073] The first support swing frame tooling 3a and the second support swing frame tooling 3b include:

[0074] base 31;

[0075] The swing frame 32 is installed on th...

Embodiment 2

[0093] like Figure 4 As shown, the difference between this embodiment and Embodiment 1 lies in that there are two groups of blowing mechanisms 4, which are respectively arranged on both sides of the cantilevered turbine rotor 1, wherein the air nozzles 43 of the first group of blowing mechanisms are used for obliquely upward The blades 12 of the cantilevered turbine rotor 1 are blown, and the air nozzles 43 of the second group of blowing mechanisms are used to blow the blades 12 of the cantilevered turbine rotor 1 obliquely downward; the machine base 2 and the air nozzles of the second group of blowing mechanisms 43 The area corresponding to the air jet direction has a through channel 21 .

[0094] The design of the two groups of blowing mechanisms 4 can better drive the cantilevered turbine rotor 1 to rotate. In actual use, the machine base 2 is at a distance from the ground. By setting the through passage 21 in the machine base 2, the gas sprayed by the corresponding nozzl...

Embodiment 3

[0096] like Figure 5 As shown, the difference between this embodiment and Embodiment 1 or Embodiment 2 is that: the base 31 of the first supporting pendulum tooling 3a is fixed on the machine base 2; the dynamic balancing device of the cantilevered turbine rotor also includes:

[0097] The slide rail 22 is fixed on the machine tool base 2;

[0098] The lead screw 23 is rotatably mounted on the machine base 2, and the lead screw 23 is arranged in parallel with the slide rail 22;

[0099] The movable seat 24 has a threaded hole 241, the movable seat 24 is slidably mounted on the slide rail 22, the lead screw 23 passes through the threaded hole 241, and is threadedly matched with the threaded hole 241, and the base 31 of the second supporting swing frame tooling 3b is fixed on the movable seat 24; and an adjusting motor 25, which is used to drive the screw 23 to rotate, and control the moving base 24 to move in the direction of the slide rail 22.

[0100]In order to ensure the...

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Abstract

The invention discloses a dynamic balance device of a cantilever turbine rotor, and relates to the field of dynamic balance testing. Two groups of support swing frame tools; the blowing mechanism is used for blowing blades of the cantilever turbine rotor; the rotating speed measuring mechanism is used for rotating speed; the supporting swing frame tool comprises a base; the swing frame is mounted on the base, and two supporting rollers are arranged on the swing frame; the pressing plate is detachably installed above the swing frame, an anti-warping roller is arranged on the pressing plate, and the diameter of an inscribed circle formed by the anti-warping roller and the two supporting rollers is the same as the diameter of a rotating shaft of the cantilever turbine rotor; and the vibration sensor is arranged on the base or the swing frame. The problem that an existing cantilever turbine rotor is prone to warping during dynamic balance and the problem that a measurement result is unstable during belt driving are solved.

Description

technical field [0001] The invention relates to the field of dynamic balance testing, in particular to a dynamic balance device of a cantilever turbine rotor. Background technique [0002] The dynamic balancing device is an instrument for measuring the unbalance of the rotor. The supporting swing frame components of the existing dynamic balancing device will consider the balance of the rotors with different diameters, and the pressure plate roller is designed with a spring, which involves an adjustable diameter. Use a belt to drive the rotor to equilibrium speed. [0003] For the miniature cantilever turbine rotor, the existing dynamic balancing device cannot be well applied, and the existing dynamic balancing device has the following defects: [0004] (1) When the cantilever turbine rotor is in dynamic balance, it will cause the phenomenon of warping, and the spring of the traditional adjustable pressure plate roller will cause the measurement data to be unstable; [0005...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M1/16G01M1/02
CPCG01M1/16G01M1/02Y02E10/20
Inventor 陈光炯侯森廖伟清蒲昌满曾佑杰
Owner 杭州华翊科技有限公司