Characteristics of double-shaft screw conveyor:
1. Floating connection mode is adopted for all transmission parts, and the hanging bearing is a universal structure, so that the screw, the hanging bearing and the tail can form a whole rotatory floating body, and the resistance can be transferred to freely rotate and avoid, without material stuck or blocking.
2. The head and tail bearing seats are all outside the shell. All bearings adopt multi-layer sealing box with sealing technology, and the bearing has a long service life.
3. Compared with other conveying equipment, it has the advantages of small cross section size, good sealing performance, stable and reliable operation, middle multi-point loading and unloading, simple operation and maintenance, etc.
4. The screw shaft and the hanging bearing, head and tail shaft are connected by embedded tongue type, so the installation and disassembly do not need axial movement, and the maintenance is convenient.Long mandrel, less hanging, less trouble spots.
5. Adopt variable diameter structure to increase the volume of the bearing and avoid the contact between the bearing and the material. The service life of the bearing can reach more than two years.
The principle of the two-axis screw conveyor is to install a solid screw in two seamless steel pipes, one is left rotation, the other is right rotation.When working, the two helices engage and rotate through a pair of gears at the extension position of the shaft. Due to the rotation of the helix, the material moves in the axial direction, so as to achieve the purpose of transportation.The conveying principle of double-shaft screw conveyor is that the rotating screw blade pushes the material to be transported, and the force that makes the material not rotate with the screw conveyor blade is the material weight and the friction resistance of the screw conveyor shell to the material, and the process of making the material move forward is the working principle of screw conveyor.There are spiral blades welded on the rotating shaft of the double-shaft spiral conveyor, and the surface types of the blades are of solid surface type, belt surface type and blade surface type according to the different materials transported.The spiral shaft of the screw conveyor has thrust bearing at the end of the direction of material movement to give axial reaction force to the screw with the material. If the length is longer, the intermediate hanging bearing should be added.