The invention belongs to the technical field of automobile noise reduction, and discloses a noise reduction transmission shaft. Universal joints are installed on the two sides of the telescopic sleeve, the telescopic sleeve is arranged in a through groove in a hollow cylinder in a penetrating mode, a hollow sleeve is arranged on the periphery of the through groove, the interior of the hollow sleeve is divided into an oil storage tank and an empty groove, the oil storage tank is installed on the upper side of the empty groove and communicated with the empty groove through an oil valve, and lubricating oil is stored in the oil storage tank. An air bag is installed at the end, away from the oil valve, in the empty groove, a piston is installed at the front end of the air bag, a hollow bin is arranged in the hollow cylinder, an air pump is installed in the hollow bin, the air pump is communicated with the air bag, and the hollow cylinder is flexibly connected with a vehicle body. The problem that in the prior art, a transmission shaft can generate huge noise in the vehicle running process is solved.

    本发明属于汽车降噪技术领域,公开了一种降噪传动轴。其中包括伸缩套,伸缩套两侧安装有万向节,伸缩套穿设在空心筒内的通槽内,通槽外周设置有空心套,空心套内分为储油槽和空槽,储油槽安装在空槽上侧,储油槽通过油阀与空槽连通,储油槽内存储有润滑油,空心套的内壁靠近油阀的一侧设置有排油孔,排油孔将空槽和通槽连通,空槽内远离油阀的一端安装有气囊,气囊前端安装有活塞,空心筒内设置有空心仓,空心仓内安装有气泵,气泵与气囊连通,空心筒与车身柔性连接;解决现有技术下传动轴在车辆行驶过程中,会产生巨大噪音的问题。


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    Title :

    Noise reduction transmission shaft


    Additional title:

    一种降噪传动轴


    Contributors:
    REN HAOJIE (author) / LIANG LIN (author) / ZHAO WEI (author) / XUE RUIFENG (author)

    Publication date :

    2025-01-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F16D COUPLINGS FOR TRANSMITTING ROTATION , Nicht schaltbare Kupplungen / F16H Getriebe , GEARING / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F16F SPRINGS , Federn / F16C SHAFTS , Wellen




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