Feeding device

The utility model relates to a feeding device, including casing and inside impeller, casing top, bottom are equipped with feed inlet and discharge gate respectively, and casing left side, right side are equipped with left end lid and right-hand member lid respectively, and impeller connection has the transmission shaft, and the left end is covered and is equipped with the caulking groove, the caulking groove that said transmission shaft one end and impeller connection, the other end were covered by the left end stretches out the casing and install the diaxon on the transmission shaft and holds, adopt mechanical seal between transmission shaft and the casing, mechanical seal including inlaying the stationary seal ring on the caulking groove and being fixed in the sealed rotating ring of transmission shaft. The utility model discloses utilize the slower characteristics of feeder drive machine rotational speed, mechanical seal calorifys not notablely, and is durable for a long time, add frequent dismouting, the leaking that the material is sealed with the tradition and compare, greatly reduced maintenance frequency and expense, alleviateed workman's work load, guaranteed the stability and the product quality of production. Furthermore, the utility model discloses effectively avoid the tradition to add the material seal wear and formed the risk that impurity pollutes the product, provide good guarantee for the quality control of foodstuff and food additive enterprise.