What if there is noise in the cab of the excavator? Anti vibration. There are two kinds of vibration prevention: one is to prevent low-frequency large-scale vibration for 1-2 times, and the other is to prevent high-frequency small-scale vibration. The former can take measures to change the curvature, increase the drawbead and increase the panel stiffness. The latter can improve the damping capacity by using anti vibration materials. The common method is to add the sandwich structure of anti vibration material between the steel plates to obtain high damping capacity through the shear deformation of the middle layer, especially on the cab shell and bottom plate near the engine side. There are two ways for sandwich members: one is to add anti vibration materials between punched steel plates; Another method is to paste resin layer or asphalt based anti vibration plate on the steel plate. Appropriate elastic elements and damping elements are installed between the cab and the chassis to reduce the vibration and secondary noise of the cab structure.
