A centering non-contact axial force loading device and method

A loading device and axial force technology, applied in the field of testing, can solve the problems of bending moment component at the shaft end, affecting test accuracy, affecting the force state of the system under test, etc., and achieve the effect of small additional force and accurate loading direction

Active Publication Date: 2019-08-27
JINCHENG NANJING ELECTROMECHANICAL HYDRAULIC PRESSURE ENG RES CENT AVIATION IND OF CHINA
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Problems solved by technology

However, non-contact axial force loading is likely to generate other additional forces / additional moments, such as bending moments, which affect the stress state of the system under test and affect the accuracy of the test
For example, in the implementation of magnetic loading, it is difficult to align the center of the magnetic field with the axis, resulting in a bending moment component at the shaft end, which affects the accuracy of the test

Method used

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  • A centering non-contact axial force loading device and method
  • A centering non-contact axial force loading device and method
  • A centering non-contact axial force loading device and method

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Embodiment Construction

[0020] Such as figure 1 As shown, a centering non-contact axial force loading device includes a loading shaft 1, a loading shaft magnetic steel mounting groove 2, a loading magnetic steel 3, a loaded magnetic steel 4, a loaded shaft magnetic steel mounting groove 5 and a loaded shaft 6. The loading magnet 3 is cemented in the loading magnet installation groove 2 of the loading shaft 1 to form the loading body 7; the loaded magnet 4 is cemented in the loaded shaft magnet installation groove 5 of the loaded shaft 6 to form a loaded body 8; the loading body 7 is close to the loaded body 8, constituting a loading device; the angle between the loading shaft magnetic steel installation groove 2 and the loaded shaft magnetic steel installation groove 5 is 0°<α<90°.

[0021] A centering non-contact axial force loading method, based on the use of the aforementioned loading device, the device is placed in a gas or liquid environment, and the angle α between the magnetic steel installati...

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Abstract

The invention belongs to the technical field of test, and relates to a centering noncontact axial force loading device and method. The device comprises a loading shaft (1), loading shaft magnetic steel installing slots (2), loading magnetic steel (3), loaded magnetic steel (4), a loaded shaft magnetic steel installing slot (5) and a loading shaft (6). The device is arranged in the gas or liquid environment, the angle alpha of the loading shaft magnetic steel installing slots (2) and the loaded shaft magnetic steel installing slot (5) is controlled to be identical and 0<alpha<90 degrees, a loading body (7) and a loaded body (8) are coaxial and the size of the distance L is adjusted to acquire different sizes of axial force loading.

Description

technical field [0001] The invention belongs to the technical field of testing and relates to a centering non-contact axial force loading device and method. Background technique [0002] Axial force is an important control parameter in the field of rotating machinery, which affects the stability and life of the machine. In order to accurately control and adjust the designed axial force, it is necessary to carry out axial force measurement test to obtain accurate axial force. [0003] There are various axial force loading and testing methods, which are divided into contact type and non-contact type. However, non-contact axial force loading is likely to generate other additional forces / moments, such as bending moments, which affect the stress state of the system under test and affect the accuracy of the test. For example, in the implementation of magnetic loading, it is difficult to align the center of the magnetic field with the axis, resulting in a bending moment component...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/00
Inventor 刘晓东陈屹李述林
Owner JINCHENG NANJING ELECTROMECHANICAL HYDRAULIC PRESSURE ENG RES CENT AVIATION IND OF CHINA
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