Sound insulation device used during transmission testing

The utility model provides a sound insulation device used in a transmission test, which comprises a sound insulation cover body used for being installed on a transmission to be tested, and the sound insulation cover body comprises a main frame and a sound insulation plate. Sound insulation plates are arranged on the top and the side faces of the main frame. According to the utility model, on the premise of meeting test environment requirements, harm of noise of the transmission to human bodies is reduced; the device belongs to an assembled structure, is simple to mount and dismount, is firm in sealing, and can be widely applied to noise environment supply for transmission rack test and abnormal sound fault analysis. 本实用新型提供的一种变速器测试时的隔声装置，包括用于安装在待测变速器上的隔声罩本体，所述隔声罩本体包含主框架和隔声板；所述主框架的顶部和侧面上均设置有隔声板；本实用新型在满足测试环境要求的前提下，减少变速器噪声对人体的危害；该装置属拼装结构，安装、拆卸简单，密封牢靠，可广泛应用于变速器台架测试和异响故障分析的噪声环境提供。