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Cross coupling rigidity excitation simulation device of magnetic levitation centrifugal compressor

A centrifugal compressor and cross-coupling technology, used in mechanical equipment, non-variable-capacity pumps, non-displacement pumps, etc., can solve the problem of not being able to simulate cross-coupling stiffness excitation interference, and achieve good controllability and observability. Effect

Active Publication Date: 2017-11-10
成都凯磁科技有限公司
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a cross-coupling stiffness excitation simulation device for a magnetic suspension centrifugal compressor in view of the defect that the existing device does not have a function capable of simulating cross-coupling stiffness excitation interference in a magnetic suspension compressor

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  • Cross coupling rigidity excitation simulation device of magnetic levitation centrifugal compressor
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  • Cross coupling rigidity excitation simulation device of magnetic levitation centrifugal compressor

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Embodiment Construction

[0030] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0031] Such as figure 1 As shown, the cross-coupled stiffness excitation simulation device of the magnetic levitation centrifugal compressor of the embodiment of the present invention includes a T-slot table 1, and a high-speed motor 2 and an elastic coupling that are horizontally arranged on the T-slot table 1 and connected in sequence 3. Radial magnetic suspension bearing assembly, flexible magnetic suspension rotor 5, excitation magnetic suspension bearing 8 and measurement components; where:

[0032] The radial magnetic suspension bearing assembly includes a front radial magnetic suspension be...

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Abstract

The invention discloses a cross coupling rigidity excitation simulation device of a magnetic levitation centrifugal compressor. The device comprises a T-shaped groove table, and a high-speed motor, an elastic coupling, a radial magnetic levitation bearing module, a flexible magnetic levitation rotor, an excitation magnetic levitation bearing and a measuring module transversely arranged on the T-shaped groove table and connected in sequence; the measuring module comprises multiple radial eddy current displacement sensors; large and small dynamic balance discs are in interference assembly in the middle position of the flexible magnetic levitation rotor; the radial eddy current displacement sensors are connected with a signal input end of a digital controller; and an output end passes through a power amplifier to connect with a front radial magnetic levitation bearing, a back radial magnetic levitation bearing and the excitation magnetic levitation bearing. The device is simple in structure, convenient in use and operation and high in system stability, uses magnetic field force for exciting the flexible magnetic levitation rotor to form cross coupling rigidity interference, and can perform control studies of the cross coupling rigidity interference inhibition of the magnetic levitation centrifugal compressor on a testbed.

Description

technical field [0001] The invention relates to the technical field of magnetic suspension supports, in particular to a cross-coupling stiffness excitation simulation device for a magnetic suspension centrifugal compressor. Background technique [0002] Magnetic suspension bearing is a new type of high-performance bearing that uses magnetic field force to stably levitate the rotor and realize non-contact support between the stator and the rotor. Magnetic suspension bearing is a typical machine-electromagnetic integration product that integrates electromagnetism, mechanics, electronic technology and computer technology, and can work in harsh environments such as high temperature. Compared with traditional mechanical bearings, magnetic suspension bearings have the following advantages: no contact, no friction, no lubrication system, high peripheral speed, less heat generation, low power consumption, long life, online adjustment of stiffness and damping, and can work at high te...

Claims

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Application Information

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IPC IPC(8): F04D27/00F04D17/10
CPCF04D17/10F04D27/001
Inventor 胡业发冉少林吴华春关炎培程鑫宋春生张锦光丁国平
Owner 成都凯磁科技有限公司
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