78results about How to "Guaranteed sealing requirements" patented technology

The invention discloses a multiple sealing carrying roller of a belt conveyor which is applied to the field of bulk material conveying equipment. The carrying roller comprises combined seals, check rings, bearings, isolating rings, bearing seats, a tube and a shaft, press fitting is conducted on the tube and the shaft by the adoption of the double-end seam-allowance-free cold pressing technology, and the two ends are connected into a whole by the adoption of the welding method; the shaft penetrates through the tube and the bearing seats at the two ends, and the isolating rings and the bearings are installed at the two ends of the shaft; the bearings are fixed to the two ends of the shaft through the check rings; the combined seals pass through the shaft and the bearing seats and are installed into the two ends of the shaft in an interference connection mode; each combined seal is composed of a sealing end cover, a sealing shaft cover, an inner sealing ring and an outer sealing ring, each inner sealing ring is installed inside the corresponding sealing end cover, each sealing shaft cover is installed on the flange parts of the left portions of the corresponding sealing end cover and the inner sealing ring, and each outer sealing ring is installed on at right outer edge of the corresponding inner sealing ring. According to the multiple sealing carrying roller of the belt conveyor, the comprehensive property is high, the machining procedures of the carrying roller are decreased, the axial movement is reduced, the sealing property of the carrying roller is improved, the service life is long, and the energy consumption of the belt conveyor is reduced, the cost is saved, and the operation reliability is enhanced.