Five-component test device for measuring multi-component force of solid rocket engine

The invention provides a five-component test device for measuring the multi-component force of a solid rocket engine. The test device comprises a leveling base, a main thrust force measuring device, a fixed frame, a squirrel cage structure and lateral force measuring devices. The leveling base bears main thrust of an engine, and the fixed frame is used for bearing lateral force; the main thrust force measuring device is used for measuring the main thrust force of the engine; the squirrel cage structure is connected with the engine, and the squirrel cage is an engine movable frame, is connected with the engine through a skirt and is not in direct contact with the engine at other positions; lateral force measuring devices are installed at the same height positions of four longitudinal steel beams of the fixed frame, the four lateral force measuring devices are oppositely distributed in a cross shape, the axes of every two opposite lateral force measuring devices are located on the same straight line, and each l