End-fixed assembly type spiral conveying shaft and method

Abstract

The invention discloses an end-fixed assembly type spiral conveying shaft and a method, solves the problems of high replacement difficulty and high maintenance cost of an integral spiral conveying shaft in the prior art, and has the beneficial effects of reducing the production cost and prolonging the service life of a machine. According to the specific scheme, the end-fixed assembly type spiral conveying shaft comprises at least three sections of screw shafts which are detachably connected, the plurality of sections of screw shafts are sequentially connected to form the assembly type spiral conveying shaft, each screw shaft is provided with a screw blade, and the feeding end screw shaft is connected with the screw blade of the screw shaft connected with the feeding end screw shaft; and one end of the discharging end screw shaft is fixed, the other end of the discharging end screw shaft is rotationally connected with the screw shaft connected with the discharging end screw shaft, and agap is formed between the screw blade of the discharging end screw shaft and the screw blade of the screw shaft connected with the discharging end screw shaft.

Description

technical field [0001] The invention relates to the field of industrial production, in particular to an end-fixed assembled screw conveying shaft and a method thereof. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] The vertical screw unloader is widely used in the unloading operation of small particle bulk materials such as stone, coal, iron ore powder, etc. due to its advantages of environmental protection, high efficiency, energy saving, and safety. Critical components for service life. [0004] Existing screw conveying shafts are usually made of seamless steel pipe externally welded with equal-pitch spiral blades. The inventors found that various parts of the spiral blades were damaged to varying degrees after a long period of operation, and the spiral blades at the feeding and discharging places were damaged especially serious. Bec...

AI Technical Summary

Problems solved by technology

Because the helical blades at the feed place cut into the material intermittently to a certain depth, the helical blades at the discharge place transmit greater torque while contacting a large amount of bulk material gushing out, so the helical blades at both ends are subject to greater friction than the spiral bearings with stable working conditions in the middle , collision and shearing, so failure phenomena such as helical blade wear, bending and fracture will occur faster

However, once a part of the screw conveyor shaft fails, the entire screw conveyor shaft must be replaced, resulting in difficult replacement, labor-intensive, and high maintenance costs, which greatly affects production efficiency

Images