A Passive Vibration Isolation Device Suitable for Low Frequency Vibration

A low-frequency vibration and passive technology, applied in the direction of non-rotational vibration suppression, etc., can solve the problems of high cost and complex structure, and achieve the effect of small static displacement, reducing the impact of foundation vibration and impact, and small low-frequency vibration isolation performance

Active Publication Date: 2016-01-27
苏州东菱智能减振降噪技术有限公司
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Problems solved by technology

Therefore, the traditional passive vibration isolation technology always has the problem of trade-off between dynamic stiffness and s

Method used

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  • A Passive Vibration Isolation Device Suitable for Low Frequency Vibration
  • A Passive Vibration Isolation Device Suitable for Low Frequency Vibration

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Embodiment Construction

[0013] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0014] combine Figure 1~2 , the magnet 4 is fixed on the slider 9. When the magnet 4 is working, it is stationary relative to the casing in the cavity of the casing, and the distance between the magnet 5 and the magnet 5 can be adjusted through threads. The magnet 5 supported by two springs can be placed in the casing The cavity of 6 vibrates in the vertical direction, and the two magnets are facing each other when balanced. The friction between the magnet 5 and the device housing 6 produces damping, and there is a guide groove on the side of the housing cavity in the vertical direction, and the vibration isolation platform 1 and the magnet 5 are fixed in the guide groove and vibrate with the magnet 5 . The device housing 6 is made of aluminum and other hard and non-magnetic materials, and the spring is made of copper.

[0015] The device is placed vertically a...

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Abstract

The invention aims to provide a passive vibration isolation device suitable for low frequency vibration. The passive vibration isolation device comprises a device shell and a vibration isolation platform. The device shell comprises a shell body and a shell side body. The shell side body is arranged on the side face of the shell body, a first magnet is installed in the shell side body, a first spring, a second spring and a second magnet are installed in the shell body, the positive pole of the first magnet and the positive pole of the second magnet are opposite, the negative pole of the first magnet and the negative pole of the second magnet are opposite, the upper end of the vibration isolation platform is located outside the shell body, the lower end of the vibration isolation platform is connected with the second magnet, the first spring is arranged between the second magnet and the inner wall of the upper end of the shell body, the vibration isolation platform is sleeved with the first spring, and the second spring is arranged between the second magnet and the inner wall of the lower end of the shell body. The requirements for high static rigidity and low dynamic rigidity can be met, and small static displacement and low frequency vibration isolation performance are guaranteed. Through the device, the influences of foundation vibration and impact on a precise instrument or a driver can be effectively reduced.

Description

technical field [0001] The invention relates to a vibration isolation device. Background technique [0002] With the continuous development of industrialization, people's requirements for vibration isolation are getting higher and higher. For example, low-frequency vibration isolation platforms for precision instruments, and helicopter pilot's seats need better vibration isolation performance at low frequencies. Traditional passive vibration isolation technologies such as single-layer vibration isolation, double-layer vibration isolation, and floating raft vibration isolation can effectively isolate the transmission of mechanical equipment vibration to the foundation and the transmission of foundation vibration to equipment, and have been used in ships, aerospace, automobiles, etc. It has been widely used in many fields. But like other vibration control technologies, passive vibration isolation technology also has its shortcomings that are difficult to overcome. For exampl...

Claims

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Application Information

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IPC IPC(8): F16F15/02F16F15/04
Inventor 杨铁军陆泽琦梁伟龙孙红梅孙瑶石慧张羽飞黄迪刘志刚
Owner 苏州东菱智能减振降噪技术有限公司
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