The invention relates to an automobile vibration isolation bush with a middle mass body and an automobile. The automobile vibration isolation bush comprises: an outer frame, an outer layer elastic body, a middle mass body, an inner layer elastic body and an inner core; the outer frame is used for being fixedly connected with an automobile body or an automobile frame or an automobile auxiliary frame; the inner core is provided with a mounting hole; the mounting hole is used for being fixedly connected with a vibration source; the middle mass body is arranged between the inner core and the outer frame; the middle mass body is fixedly connected with the inner core through the inner layer elastic body and fixedly connected with the outer frame through the outer layer elastic body, and a rigidity of the outer layer elastic body and a rigidity of the inner layer elastic body are both smaller than a rigidity of the middle mass body. By arranging the middle mass body between the inner layer elastic body and the outer layer elastic body, a two-stage vibration isolation structure is formed, so that the isolation capacity for medium-high frequency vibration excitation is improved, and the problems that, in the prior art, a single-stage vibration isolation structure is poor in vibration isolation effect, and the riding experience of passengers is affected, are effectively solved.
本发明涉及一种带有中间质量体的汽车隔振衬套及汽车,所述汽车隔振衬套包括:外框、外层弹性体、中间质量体、内层弹性体和内芯,所述外框用于与车身或车架或副车架固定连接,所述内芯设有安装孔,所述安装孔用于和振源固定连接,所述中间质量体设于所述内芯和所述外框之间,所述中间质量体通过所述内层弹性体与所述内芯固定连接且通过所述外层弹性体与所述外框固定连接,所述外层弹性体和所述内层弹性体中的刚度均小于所述中间质量体的刚度。通过在内层弹性体和外层弹性体之间设置中间质量体,构成二级隔振结构,提升了对中高频振动激励的隔绝能力,有效改善现有技术中单级隔振结构隔振效果差,影响乘客乘坐体验的问题。
Automobile vibration isolation bush with middle mass body and automobile
一种带有中间质量体的汽车隔振衬套及汽车
2021-10-12
Patent
Electronic Resource
Chinese
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