Suggestions for improvement of screw conveyor structure
Screw conveyor is a kind of common conveying equipment, and it is also widely used. Existing screw conveyors also have certain defects, such as easy breakage of bolts, easy damage to bearings, and high failure rate. Several structural improvements are given below.
(1) Increase the strength of the connecting part at the intermediate shaft
In production, the connecting bolts between the screw conveyor blade flange and the intermediate shaft flange are easy to break. You can start by increasing the strength of the connecting part and change the diameter of the screw conveyor blade flange. After the improvement, the inspection should be strengthened. If individual bolts are found to be loose and broken, the machine should be shut down for maintenance as soon as possible to avoid the serious phenomenon of the previous connecting bolts.
(2) Remove the tail bearing and bearing seat
The head of the screw conveyor adopts a thrust bearing, and the tail adopts a radial bearing and its bearing seat (gourd head). Due to the restriction of sealing conditions and the easy damage of the sealing ring, dust and materials are easy to enter the bearing seat and become sludge, making the bearing easier to damage , The use period is less than one year. To this end, the tail bearing and bearing seat can be removed, and an intermediate shaft can be installed at the tail. Like other intermediate shafts, the suspension bearing (hanging bracket) is used for inverted support, but attention should be paid to leveling the tail suspension bearing to make it hang with other suspensions. The bearing maintains straightness.
(3) Increase the single section length of the screw conveyor
The short length of a single section leads to a large number of sections when the conveying distance is slightly longer. In order to reduce the failure source of the connecting part, a screw conveyor composed of two sections can be processed into one section, and the flange also uses the aforementioned thickened structure , And in the flange and the thick-walled steel pipe welding place, the triangular ribs are welded in three equal parts to prevent the flange from twisting. After improvement, it can be used for more than one year, and it runs well. In addition, the number of intermediate shafts is reduced, so failures can be significantly reduced.
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