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1 鼓形齿轮能有效降低摩托车运行噪声 齿轮啮合噪声大体可分为软噪声和硬噪声两大类。 软噪声是齿轮啮合过程中高压油气混合物不能顺畅排除而产生的一种高频啸叫声。
1 drum gear can effectively reduce the running noise of motor gear meshing noise can be roughly divided into two categories of soft noise and hard noise. Soft noise is a kind of high-frequency whistling sound generated when the high-pressure oil-gas mixture can not be smoothly excluded during gear meshing.