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Torsional axial rotary dynamic vibration absorber

A dynamic shock absorber, axial technology, applied in the direction of shock absorber, friction shock absorber, spring/shock absorber, etc., can solve the problem of dynamic imbalance of the system, and achieve the effect of reducing dynamic imbalance and good dynamic balance , The effect of low manufacturing cost

Inactive Publication Date: 2016-12-14
XIAMEN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the center of mass of the system is below the axis, and this eccentricity causes the dynamic imbalance of the system, which causes additional work

Method used

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  • Torsional axial rotary dynamic vibration absorber
  • Torsional axial rotary dynamic vibration absorber
  • Torsional axial rotary dynamic vibration absorber

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Embodiment Construction

[0033] The following embodiments will describe the present invention in detail with reference to the accompanying drawings.

[0034] see Figure 1-14 , the embodiment of the present invention is provided with three shaft tubes 1, the three shaft tubes 1 are fixed by ribs 2, the two ends of the three shaft tubes 1 are provided with fixed cover plates 3, and the three shaft tubes 1 are filled with particles 4 .

[0035] The shaft tube 1 can be a circular tube, and the three shaft tubes preferably have the same length and diameter.

[0036] The ribs 2 can be arranged between the outer walls of the shaft tube.

[0037] The size, material and number of particles 4 filled in the shaft tube 1 are preferably the same.

[0038] The fixed cover plate 3 can be screwed to both ends of the shaft tube 1 through threads.

[0039] The shaft tube 1 is preferably divided into 2-6 sections in the axial direction.

[0040] When in use, the outer wall of the shaft tube is in transition fit wi...

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Abstract

The invention provides a torsional axial rotary dynamic vibration absorber and relates to a shafting vibration reduction device. The vibration absorber comprises n shaft tubes which are fixed through a ribbed plate. The two ends of the n shaft tubes are provided with fixing cover plates, and the n shaft tubes are filled with particles, wherein n is an integer larger than or equal to 3. An original single shaft hole is improved into three shaft holes, and the particles are placed in all the shaft holes. The position of the particles after improvement is balanced relative to the mass center, so the dynamic unbalance phenomenon of a particle damper is greatly reduced, no extra work is generated or only part of extra work is generated, and stability of vibration reduction and noise reduction of the damper is enhanced. The vibration absorber is simple in structure and low in manufacturing cost, and a good stable dynamic balance effect can be achieved. The outer wall and the shafting inner holes are in transition fit, and a shafting is matched with the fixing cover plates through threads. Vibration and noise generated when the shafting operates are reduced, meanwhile extra work generated due to dynamic unbalance is reduced, and stability of vibration reduction and noise reduction of the particle damper is improved.

Description

technical field [0001] The invention relates to a shaft system vibration damping device of a power device, in particular to a torsional axial rotary dynamic vibration absorber. Background technique [0002] Shafting is the key part of the power plant to transmit motion and power. It is developing towards high speed and heavy load. Excessive vibration of the shafting will lead to serious consequences, such as accelerating the wear of engine parts and causing torsional-axial coupling vibration. Increase the noise of the equipment, etc. How to control these vibrations and noises has an important impact on the precision, performance, life of mechanical equipment and the labor protection of operators. [0003] Particle damping has the advantages of significant vibration reduction effect, high temperature resistance, and small changes to the original structure. It is a new passive vibration suppression technology in the field of vibration control. The application of particle dam...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F7/01
CPCF16F7/01F16F2222/04
Inventor 肖望强李佳妮郝润姿潘天龙
Owner XIAMEN UNIV
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