Spatial six-degree-of-freedom magnetic suspension vibration isolation platform

A technology of vibration isolation platform and degree of freedom, applied in the direction of shock absorber, vibration suppression adjustment, non-rotational vibration suppression, etc., can solve the problems of complex structure, low degree of integration, large occupied space, etc., and achieve good mechanical properties, The effect of high degree of integration and small footprint

Active Publication Date: 2020-11-20
HARBIN INST OF TECH
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Problems solved by technology

[0003] The present invention is to solve the problems that the existing magnetic levitation platform occupies a large space, the structure is relatively complex, and the degree of integration is low, and further provides a space six-degree-of-freedom magnetic levitation vibration isolation platform

Method used

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  • Spatial six-degree-of-freedom magnetic suspension vibration isolation platform
  • Spatial six-degree-of-freedom magnetic suspension vibration isolation platform
  • Spatial six-degree-of-freedom magnetic suspension vibration isolation platform

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specific Embodiment approach 1

[0026] Specific implementation mode one: combine Figure 1~6 Describe this embodiment, a magnetic levitation vibration isolation platform with six degrees of freedom in space, which includes a moving platform 1 and a static platform 2, wherein the moving platform 1 includes an upper plate 11, a lower plate 12, a connecting cylinder 13, and four upper permanent magnets Array 14, four lower permanent magnet arrays 15, several PSD displacement sensors 16 and several acceleration sensors 17, the upper plate 11 and the lower plate 12 are arranged in parallel up and down and pass through the connecting cylinder arranged between the upper plate 11 and the lower plate 12 13 is fixed, four upper permanent magnet arrays 14 are fixed on the bottom surface of the upper plate 11, four lower permanent magnet arrays 15 are fixed on the top surface of the lower plate 12, and several PSD displacement sensors 16 are fixed on the upper surface through sensor brackets 18 respectively. Between the...

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Abstract

The invention discloses a spatial six-degree-of-freedom magnetic suspension vibration isolation platform, and belongs to the technical field of space payload vibration isolation. According to the platform, the problems that an existing magnetic suspension platform is large in occupation space, complex in structure and low in integration degree are solved. Four coil arrays are correspondingly located between four upper permanent magnet arrays and four lower permanent magnet arrays, a connecting cylinder penetrates an area defined by the four coil arrays, each permanent magnet array comprises apermanent magnet with a horizontal magnetic pole direction and a permanent magnet with a vertical magnetic pole direction, and during operation, the coil arrays receive an Lorentz force effect in thehorizontal direction and the vertical direction in a magnetic field generated by the upper permanent magnet arrays and the lower permanent magnet arrays, and control over motion in the horizontal direction and the vertical direction is achieved. By utilizing electromagnetic drive, six-degree-of-freedom actions can be achieved. The mechanism is quick in response, easily realizes high-precision control, and effectively suppresses low-frequency vibration. The structure is less in component, simple in structure, high in integration degree, small in occupied space, light in product weight and easyto disassemble and maintain.

Description

technical field [0001] The invention relates to a space six-degree-of-freedom magnetic suspension vibration isolation platform, which belongs to the technical field of space payload vibration isolation. Background technique [0002] Space micro-vibration usually refers to a kind of amplitude generated by stars caused by high-speed periodic motion of moving parts (such as flywheels, gyroscopes and other driving mechanisms) or disturbances caused by orbit changes and alternating cold and heat during the orbital operation of the spacecraft. Smaller, wider-band flutter response. These small-amplitude and continuous micro-vibrations that occur in the low-frequency band have a severe impact on the results of space microgravity experiments, and may even directly lead to the failure of some space missions. Vibration isolation technology mainly includes passive vibration isolation technology, active vibration isolation technology and active-passive hybrid vibration isolation technol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F15/03
CPCF16F15/03F16F15/002F16F2222/06
Inventor 杨飞岳洪浩李韶振王宇陆一凡
Owner HARBIN INST OF TECH
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