Thermal protection structure of engine combustion chamber shell and preparation method of thermal protection structure

The invention discloses a thermal protection structure of an engine combustion chamber shell and a preparation method thereof.The thermal protection structure of the engine combustion chamber shell comprises a thermal insulation layer, a plurality of rubber gaskets and a thermal protection layer, and the thermal insulation layer is laid and fixed between a front end frame and a rear end frame; rubber gaskets are arranged on the front end frame, the rear end frame and the outer end face of the combustion chamber in the first gap correspondingly, reinforcing ribs are fixedly arranged on the rubber gaskets correspondingly, and heat-proof layers are arranged on the heat insulation layer and the reinforcing ribs. A stable multi-layer structure is effectively formed among the front end frame, the rear end frame and the outer end face of the combustion chamber through the thermal protection structure, and the thermal insulation layer and the thermal protection layer are kept complete in structure through the rubber