The invention discloses a power assembly suspension bushing which comprises an inner sleeve, an anti-rotating pin, an outer sleeve, a rubber main spring and a plurality of vibration isolation blocks arranged on the rubber main spring, and the inner sleeve and the outer sleeve are sequentially and coaxially arranged from inside to outside. The rubber main spring is arranged between the inner sleeve and the outer sleeve, and the inner sleeve and the outer sleeve are connected together through partial vulcanization of the rubber main spring. An anti-rotating pin mounting hole is formed in the inner sleeve. The anti-rotating pin is pressed into the anti-rotating pin mounting hole through interference fit. The plurality of vibration isolation blocks are asymmetrically distributed on the rubber main spring, and the shapes of the vibration isolation blocks are different. The power assembly suspension bush has low dynamic stiffness at the high-frequency band of 600Hz-3000Hz, is suitable for pure electric vehicles, has an anti-rotation function, and is simple in structure, low in cost and easy to produce.
本发明公开了一种动力总成悬置衬套,包括内套管、防转销、外套管、橡胶主簧以及设置在橡胶主簧上的若干隔振块,所述内套管和外套管从内至外依次同轴设置;所述橡胶主簧设置在所述内套管和外套管之间,所述内套管和外套管由橡胶主簧部分硫化连接在一起;所述内套管上设置有防转销安装孔;所述防转销通过过盈配合压装到所述防转销安装孔中;所述若干隔振块非对称分布在所述橡胶主簧上,且所述隔振块的形状各不相同。本发明的动力总成悬置衬套,在600Hz‑3000Hz高频段具有较低动刚度,适用于纯电动汽车,并且具有防转的功能,结构简单,成本低,易于生产。
Power assembly suspension bushing
一种动力总成悬置衬套
2021-06-25
Patent
Electronic Resource
Chinese
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