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A multi-dimensional damping device with adjustable frequency

A vibration damping device, multi-dimensional technology, applied in the direction of shock absorber, shock absorber, vibration suppression adjustment, etc., can solve the problems of reduced vibration damping effect, inability to adjust the natural frequency of the system, etc., and achieve symmetrical layout, high rigidity, and simple structure Effect

Active Publication Date: 2016-06-01
SHANDONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional vibration damping devices are often designed according to a certain frequency. When working at other frequencies, the natural frequency of the system cannot be adjusted accordingly, which greatly reduces the vibration damping effect.

Method used

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  • A multi-dimensional damping device with adjustable frequency
  • A multi-dimensional damping device with adjustable frequency

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specific Embodiment approach

[0020] Such as figure 1 and figure 2 Shown: a frequency-adjustable multi-dimensional damping device, including a moving platform 1, a static platform 2, a first sliding guide rod 21, a second sliding guide rod 22, and four bars connecting the moving platform 1 and the static platform 2 with the same structure Sports branch chain, four branch chains are symmetrically arranged in space.

[0021] The first kinematic branch chain is first connected with the moving platform 1 through the cylinder pair 31, the cylinder pair 31 is fixedly connected with the connecting rod 32, the connecting rod 32 and the slider 33 are hinged, and the slider 33 passes through the sliding guide rod of the moving pair and the static platform 2 21, the slide block 33 is supported by a spring damping system 34, and the spring damping system 34 realizes the adjustment of the position in the direction of the sliding guide rod 21 through a moving adjustment device 35 installed on the static platform 2.

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Abstract

The invention discloses a frequency-modulated multidimensional vibration damper comprising a movable platform, a fixed platform, a first sliding guide rod, a second sliding guide rod and four movable branch chains connecting the movable platform and the fixed platform. The vibration damper is characterized in that the vibration damper is designed on the basis of one multiple freedom degree parallel link mechanism; the four movable branch chains connecting the upper and lower platforms are the same in structure and are arranged symmetrically in the space, each movable branch chain is connected to the movable platform and the fixed platform through a cylindrical pair and a movable pair, spring damping systems are installed in the positions of the movable pairs of the fixed platform, movable adjusting devices are installed in the positions of the spring damping systems, and the multidimensional vibration isolation can be realized. The spring damping systems are capable of moving along the guide rods by rotating a spiral transmission device handle of the spring damping adjusting device, the optimal vibration isolation frequency range value changes, and the frequency modulation function is realized accordingly. The vibration damper is simple in manufacture process, low in cost and convenient to operate and has promised market prospect.

Description

technical field [0001] The invention discloses a frequency-adjustable multi-dimensional damping device. Background technique [0002] The multi-dimensional vibration damping device is a device that can reduce multi-dimensional vibration transmission. It can be widely used in the vibration reduction of ambulance stretchers, car seats, etc., and can also be used in the vibration isolation of various vehicle-mounted, ship-mounted and airborne precision instruments and equipment. get applied. Traditional vibration damping devices mainly insert springs or rubber vibration isolators between the vibration equipment and the foundation, which mainly bear unidirectional compression or tension, and the deformation is small, and the effect of large-amplitude multi-dimensional vibration reduction is not obvious. The parallel mechanism has the advantages of high rigidity, stable structure, strong bearing capacity, large motion stroke, and good dynamic characteristics. In recent years, it...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F7/104F16F7/108F16F15/04F16F15/08
CPCF16F15/06F16F15/085
Inventor 牛军川刘乃军
Owner SHANDONG UNIV
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