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Balance head structure for electromagnetically controlling dynamic pressure based on magnetorheological fluid

A technology of electromagnetic control and magnetorheological fluid, which is applied in vibration suppression adjustment, rotation vibration suppression, non-rotation vibration suppression, etc., can solve the problems of reducing machine working efficiency and aggravating machine vibration, so as to avoid the problem of secondary filling, Simplify the number of structural parts and realize the effect of online addition

Inactive Publication Date: 2016-08-10
XI AN JIAOTONG UNIV
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Problems solved by technology

Unbalance will cause the deflection of the rotor and the change of internal stress, aggravate the vibration of the machine, reduce the working efficiency of the machine, and cause various accidents in serious cases; unbalance is not only the main excitation source of rotating machinery, but also the source of many kinds of vibration. Inducing factors of self-excited vibration

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  • Balance head structure for electromagnetically controlling dynamic pressure based on magnetorheological fluid

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Embodiment Construction

[0021] The present invention will be further described in detail below with reference to the drawings and embodiments, but not limited to these embodiments.

[0022] Such as figure 1 As shown, the balance head structure of the present invention for on-line dynamic balancing of rotating machines with medium and high speeds includes a balance head main body disk 1 and an end cover plate 3, and the main body of the balance head main body disk 1 is provided with an annular through groove for receiving magnetic flow Three electromagnets 2 are inserted into the liquid at the same time. There is a rectangular groove on the groove wall of the annular channel, and the electromagnet 2 is inserted in the rectangular groove. The upper part of the center of the balance head main body disk 1 is provided with a conductive slip ring 4. The screw hole 6 on the outer edge of the shaft and the end face cover plate 3 are used to seal the through groove. Compensation mass can also be added to the ...

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Abstract

The invention provides a balance head structure for electromagnetically controlling dynamic pressure based on magnetorheological fluid. The structure comprises a balance head body disc and an end surface cover plate; fixed joints connected with a rotor to be balanced or a testing mechanism are formed in shafts at two ends of the center of the balance head body disc; a shaft for coating an electric conducting slide ring is arranged at the upper part of the center of the balance head body disc; an annular through groove is formed in the body part of the balance head body disc; a rectangular groove is formed in the groove wall of the annular through groove; an electromagnet is inserted in the rectangular groove; and the end surface cover plate covers the balance head body disc for totally closing the balance head body disc. The structure solves the vibration problem caused by unbalance in the operation process of a high-speed revolving body; and the balance head body disc is closed through the end surface cover plate, so that the closed structure design prevents secondary injecting problem, and the use is convenient and lasting.

Description

【Technical field】 [0001] The invention belongs to the field of dynamic balance of rotating machinery rotors, and in particular relates to a balance head structure based on magnetorheological fluid electromagnetically controlling dynamic balance. 【Background technique】 [0002] As a key and basic technology of rotating machinery, dynamic balancing technology has been closely watched and valued by industry and academia. A large number of statistical data show that the unbalance of the rotor is usually the main cause of the vibration of the rotating machine. Unbalance will cause the deflection of the rotor and the change of internal stress, aggravate the vibration of the machine, reduce the working efficiency of the machine, and cause various accidents in serious cases; unbalance is not only the main excitation source of rotating machinery, but also the source of many kinds of vibration. Inducing factors of self-excited vibration. Once the balance is improved, some other symp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F15/16F16F9/53
CPCF16F9/535F16F15/161
Inventor 张西宁王奔张海星吴婷婷尤亚男
Owner XI AN JIAOTONG UNIV
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