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Testing device for airtightness of AC generator rotor and testing method thereof

An alternator and rotor sealing technology, which is applied in the direction of using liquid/vacuum for liquid tightness measurement, and by measuring the acceleration and deceleration rate of fluid, etc., which can solve the irregularity of the alternator rotor surface and the high requirements for sealing fixtures, etc. problems, to achieve the effect of reducing the workload of rework, curbing rework, and strengthening inspections

Inactive Publication Date: 2019-03-08
芜湖天航装备技术有限公司
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  • Summary
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Problems solved by technology

The existing problems are: the irregularity of the rotor surface of the alternator and the internal circulation pipeline, so the requirements for the sealing fixture are very high; in addition, the technical parameters of the sealing test are also difficult, which need to be realized through calculation and verification. Formulated, the existing technology is still unable to solve this kind of problem

Method used

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  • Testing device for airtightness of AC generator rotor and testing method thereof
  • Testing device for airtightness of AC generator rotor and testing method thereof
  • Testing device for airtightness of AC generator rotor and testing method thereof

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Embodiment Construction

[0024] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further elaborated below.

[0025] Such as Figure 1 to Figure 3 As shown, a device for checking the tightness of an alternator rotor includes a pressure gauge 1 for displaying internal oil pressure, and an upper pressure plate 3 and a lower pressure plate 10 for achieving internal sealing and cooperating with each other. Both the upper platen 3 and the lower platen 10 are provided with an upper seal 4 and a lower seal 8 for realizing single-sided sealing, and the upper platen 3 is provided with a connecting rod 6 connected with the rotor assembly 9 and a pressure gauge 1 , the connecting assembly that the rotor assembly 9 cooperates with.

[0026] The rotor assembly 9 is sealed by using the upper pressure plate 3 and the lower pressure plate 10, and the oil pressure is fixed in the inner cavity of the alternator...

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Abstract

The invention relates to the field of an AC generator, and particularly to a testing device for airtightness of an AC generator and a testing method thereof. The testing device comprises a pressure meter for displaying an inner oil pressure, an upper pressing board and a lower pressing board which are used for realizing inner sealing and match each other. The upper pressing board and the lower pressing board are respectively provided with an upper sealing member and a lower sealing member for realizing single-surface sealing. The upper pressing board is provided with a connecting rod which isconnected with a rotor assembly, and a connecting assembly which matches the pressure meter and the rotor assembly. The testing method of the testing device for the airtightness of the AC generator rotor comprises the following steps of (1), connecting; (2), supplying oil; and (3), performing comparison. The rotor assembly is sealed by means of the upper pressing board and the lower pressing board. Through an inner chamber fixed oil pressure which is supplied to the AC generator by an airtightness testing platform, the inner chamber pressure change along with time is checked, and whether non-tight sealing of the external surface occurs is determined, thereby effectively improving working efficiency, reducing reworking proportion and ensuring high mending quality of products.

Description

technical field [0001] The invention relates to the field of alternators, in particular to a device for checking the tightness of an alternator rotor and an inspection method thereof. Background technique [0002] The rotor is installed in the stator of the alternator. The working fluid circulates inside the rotor, and there is a dry space between the outside and the stator. If there is leakage, it will flow out from the seal of the stator. Currently, real-time observation is being carried out during the test. In this case, there is a problem of delay in the test. Once a leak is found, it must be reworked and repaired. The workload is heavy and the cycle is long, and it is impossible to predict the failure in advance. [0003] For the delay of the test, it can be realized by checking the tightness of the alternator rotor in advance, so as to avoid rework after failure occurs in the subsequent test. The existing problems are: the irregularity of the rotor surface of the alte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/26
CPCG01M3/26
Inventor 王啸彭杰索军峰
Owner 芜湖天航装备技术有限公司
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