Vibration reduction gear with two-dimensional quasi-phonon crystals

A technology of phononic crystals and gears, which is applied in the field of transmission devices, can solve the problems that cannot be completely eliminated, and achieve the effect of improving the working environment of workers, low requirements, and reliable use
CN103899733AInactive Publication Date: 2014-07-02HARBIN ENG UNIV
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Patent Information

Authority / Receiving Office
CN Ā· China
Patent Type
Applications(China)
Current Assignee / Owner
HARBIN ENG UNIV
Publication Date
2014-07-02
Estimated Expiration
Not applicable Ā· inactive patent

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Abstract

The invention aims to provide a vibration reduction gear with two-dimensional quasi-phonon crystals. The vibration reduction gear comprises a spoke type cylindrical gear ring. The two-dimensional Bragg type quasi-phonon crystals are mounted at a hub of the spoke type cylindrical gear ring, end covers are fixed to the upper and lower end surfaces of the two-dimensional Bragg type quasi-phonon crystals, and the two-dimensional Bragg type quasi-phonon crystals are axially constrained by the end covers and include first phonon crystal materials and second phonon crystal materials, the second phonon crystal materials are radially and circumferentially arranged on the first phonon crystal materials, the first phonon crystal materials are radially and circumferentially arranged on the second phonon crystal materials, the two-dimensional Bragg type quasi-phonon crystals are integrally circular, and axes holes and key slots are formed in the centers of the two-dimensional Bragg type quasi-phonon crystals. The vibration reduction gear has the advantages that vibration transmission at meshed positions of the transmission axial gear ring can be greatly reduced, and an excellent suppressing effect can be realized for vibration due to torsional waves and radial waves on the gear.
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Description

technical field

[0001] The present invention relates to a transmission device, specifically a gear. Background technique

[0002] As an important part of construction machinery transmission systemā€”gear transmission, it has been widely used due to its advantages of high transmission efficiency, compact structure, stable transmission ratio and long life. However, the high-speed operation of the gears will cause different degrees of vibration and noise problems, which will not only reduce the transmission accuracy and service life of the gears, and then affect the working accuracy and service life of the machinery, but also cause noise pollution and affect people's health. Therefore, the vibration and noise reduction of gears is of great significance to improve the use accuracy of machinery, prolong the service life of machinery, and improve people's working environment. At present, there are two main ways to reduce gear noise. One is to minimize the generation of vibration a...

Claims

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