A moving magnet damper
A damper, moving magnet technology, used in magnetic springs, springs/shock absorbers, mechanical equipment, etc., can solve the problems of inability to meet development requirements, poor high-frequency vibration damping performance, vibration excitation and fatigue, etc., to achieve savings The effect of resources, low cost and simple processing
Active Publication Date: 2019-01-29
HUAZHONG UNIV OF SCI & TECH
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- Description
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- Application Information
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Problems solved by technology
Because the spring vibration damping is easy to generate vibration and fatigue, the high-frequency vibration damping performance is poor, and noise is generated during operation
Therefore, the traditional hydraulic and spring dampers can no longer meet the development requirements of modern society.
Method used
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[0033] 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. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.
[0034] refer to Figure 1 to Figure 7 , a moving magnet damper, including a sleeve 2, a magnetic isolation cover 5, a support frame 1, a magnet holding plate 3, a metal block 4 and a distance adjustment structure, wherein,
[0035] The sleeve 2 is arranged vertically, its upper end is open and its lower end is closed, and the first permanent magnet 7 is fixedly installed on its inner bottom sur...
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The invention belongs to the field of dampers and discloses a moving-magnet type damper. The moving-magnet type damper comprises a sleeve, a magnetism-isolating cover plate, a support rack, a plurality of magnet retaining plates, a metal block and a distance regulating structure, wherein the upper end of the sleeve is open and the lower end of the sleeve is sealed, and a first permanent magnet is fixedly mounted on the inner bottom of the sleeve; the support rack comprises a support rod, a connecting plate and a second permanent magnet, and the upper end and the lower end of the support rod are respectively connected with the connecting plate and the second permanent magnet; the magnet retaining plates are circumferentially evenly mounted on the support rod, and an even number of third permanent magnets is sequentially mounted on each magnet retaining plate from top to bottom; the distance regulating structure is used for regulating the size of a gap between the metal block and each magnet retaining plate. The moving-magnet type damper is simple in structure, low in cost, simple to machine, lightweight and convenient to mount and use, and the principle of the moving-magnet type damper is easy to understand.
Description
technical field [0001] The invention belongs to the field of dampers, and more specifically relates to a moving magnet damper. Background technique [0002] According to the electromagnetic induction theorem, when the conductive material and the magnetic field move relative to each other, an eddy current will be induced in the conductive material, and the eddy current will excite the induced magnetic field; and it can be known from Lenz's law that the role of the induced magnetic field is to prevent the conductive material from interacting with the magnetic field. The relative movement of the main magnetic field applies a damping force (braking force) to the conductive material. In addition, since the resistance of the conductive material itself is not zero, according to Ohm's law, the eddy current will be dissipated in the form of heat energy. When a conductor moves in a magnetic field, the induced current will cause the conductor to be subjected to an Ampere force, and th...
Claims
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IPC IPC(8): F16F6/00
CPCF16F6/00
Inventor 陈学东姜伟陆澄胡兰雄
Owner HUAZHONG UNIV OF SCI & TECH