论文部分内容阅读
我公司某型号履带式推土机在进行整机性能试验时,驾驶室内噪声过高。以挂前进挡为例,测得驾驶室门窗关闭和打开时的噪声分别为98.4dB(A)、97.9dB(A),门窗关闭后的噪声比开门时还要大。根据国家标准《GB16710-2010土方机械噪声限值》中规定,装有驾驶室的履带式推土机司机位置处噪声I阶段不得超过95dB(A),Ⅱ阶段不得超过92dB(A)。以上2项试验测得数据均已超标,需对室内噪声进行控制。
One type of company crawler bulldozer in the performance test machine, the cab noise is too high. Taking the forward gear as an example, it is measured that the noise when the cab doors and windows are closed and opened are 98.4dB (A) and 97.9dB (A) respectively, and the noise after the doors and windows are turned off is larger than that when the door is opened. According to the national standard “GB16710-2010 Earthmoving Machinery Noise Limits”, the noise at the driver’s position of the track-mounted bulldozer with driver’s cab I phase shall not exceed 95dB (A) and the II phase shall not exceed 92dB (A). The above two tests measured data have been exceeded, the need for indoor noise control.