Method for mounting underwater super-heavy component by utilizing miniature lifting equipment

The invention discloses a method for mounting an underwater super-heavy component by utilizing miniature lifting equipment. The method comprises the following steps: by adopting the miniature lifting equipment, at the optimal operating states such as minimum lifting amplitude and maximum lifting arm angle, lifting a to-be-mounted component and a float bowl fixed to the component under the water surface; gradually immersing the float bowl into water, wherein the lifting weight born by the miniature lifting equipment is gradually reduced due to the buoyancy of the float bowl, the operating amplitude of the miniature lifting equipment is gradually increased until a mounting part is reached; and injecting water into the float bowl after the component is placed, separating the float bowl from the component, lifting the float bowl out of the water surface, and starting the next mounting cycle. According to the method for mounting the underwater super-heavy component by utilizing miniature lifting equipment disclosed by the invention, the weight of the lifting component in the operating amplitude range of the lifting equipment is effectively increased, namely the operating amplitude of the lifting equipment is obviously increased when the component of the same weight is lifted.