Cluster casting shell mould and technology for cast steel tool aprons of rotary cultivators

The invention discloses a cluster casting shell mould and technology for cast steel tool aprons of rotary cultivators and belongs to the field of parts of agricultural machines. The cluster casting shell mould for tool aprons is a multi-layer shell mould made of precoated sand. The multi-layer shell mould comprises a bottom layer shell mould body, a middle layer shell mould body and a top layer shell mould body, wherein a plurality of tool apron lower shell moulds are arranged in the bottom layer shell mould body, a plurality of tool apron upper shell moulds are arranged in the top layer shell mould body, a plurality of tool apron lower shell moulds are arranged on the upper surface of the middle shell mould body, and a plurality of tool apron upper shell moulds are arranged on the lower surface of the middle shell mould body; shell cores are arranged in the middles of the multiple tool apron upper shell moulds and the middles of the multiple tool apron lower shell moulds; and multiple tool apron cavities are formed in the multiple tool apron lower shell moulds and the multiple tool apron upper shell moulds. By using the cluster casting shell mould to cast tool aprons, batch production of tool aprons can be realized, the use amount of the precoated sand is reduced, product quality is improved, the production cost is reduced, the production efficiency is improved, and the wish of farmers for maintaining agricultural machines with a low price is met.