A variable-diameter and variable-pitch dismountable conveying pump screw shaft with adjustable blade inclination and anti-skid and wear-resistant properties

Abstract

A blade inclination angle adjustable and anti-slide abrasion-resisting reducing pitch adjusting detachable delivery pump screw shaft is composed of nine different detachable blade assemblies, a bladeinclination angle adjusting structure, a blade positioning structure, a rotary shaft, a tail end baffle and a vacancy filling plate. The nine different detachable blade assemblies cooperate with one another to form a reducing pitch adjusting spiral shaft structure, the blade inclination angle adjusting structure is adopted, different blade inclination angles can be adjusted according to needs, andthe material blockage situation is greatly improved; the detachable blade assembly structure is adopted, blade installing, demounting and maintaining are very convenient, and the cleaning difficultyof blades is greatly lowered; and the blades are provided with a plurality of grooves and lugs which are all in different shapes and are arrayed in a stagger manner, material sliding is prevented, andthe blade is provided with arc-shaped anti-abrasion ribs so that the blade abrasion situation can be improved. By means of the blade inclination angle adjustable and anti-slide abrasion-resisting reducing pitch adjusting detachable delivery pump screw shaft, the material blockage, sliding, abrading and other problems in the running process of a screw conveying pump are solved, the working performance is improved, and the service life is prolonged.

Description

technical field [0001] The invention belongs to the field of machinery, and in particular relates to a variable-diameter variable-pitch dismountable delivery pump screw shaft with adjustable blade inclination and anti-slip and wear-resistant properties. Background technique [0002] The conventionally designed screw pump adopts a screw shaft structure with fixed diameter and fixed pitch. The blades of the screw shaft are fixed on the screw shaft by welding. The blades cannot be disassembled. The space for the pump to transport materials is fixed, and the space is relatively small, which is very sensitive to materials. When the screw conveying pump is used for a period of time, it is easy to entangle the material when the screw shaft rotates, which will cause some materials to be blocked between the blades of the screw shaft. The transportation cannot be completed, which affects normal production, and problems such as poor discharge and too late discharge occur, making the ac...

AI Technical Summary

Problems solved by technology

[0002] The conventionally designed screw pump adopts a screw shaft structure with fixed diameter and fixed pitch. The blades of the screw shaft are fixed on the screw shaft by welding. The blades cannot be disassembled. The space for the pump to transport materials is fixed, and the space is relatively small, which is very sensitive to materials. When the screw conveying pump is used for a period of time, it is easy to entangle the material when the screw shaft rotates, which will cause some materials to be blocked between the blades of the screw shaft. Unable to complete the conveying, affecting normal production, problems such as poor discharge and too late discharge, making the actual conveying capacity of the screw conveying pump far lower than its design capacity

Excessive accumulation of materials will also increase the wear of the screw shaft blades and shorten the working life of the equipment. When clogging occurs, it will affect the output, increase power consumption, waste resources, and may twist the screw shaft. In severe cases, it will burn out motor, causing major work accidents, posing a major threat to the safety of employees, and posing a major safety hazard

After the screw conveying pump has been working for a period of time, it is necessary to clean up the remaining materials in the screw conveying pump to prevent large impurities or fibrous impurities from entering the machine and causing blockage. It is welded on the screw shaft. This design makes the screw pump more difficult to clean. The staff need to use a lot of manpower and material resources when cleaning, and it will also take a lot of time. The labor intensity is high, which greatly reduces the work efficiency. When the screw conveying pump works for a period of time, the screw shaft blades will inevitably have some large or small problems such as serious blade wear, but because the blades are welded on the screw shaft in one piece, as long as there is one place If there is a problem, the entire blade must be replaced, which will undoubtedly cause a lot of waste, and the replacement process is very cumbersome and will take a lot of time

Since the inclination angle of the blades of the screw shaft in the conventionally designed screw conveying pump cannot be changed, the friction between the material and the blades cannot be changed or adjusted according to the actual working conditions, so the screw conveying pump cannot guarantee that it can transport different materials or multiple Good conveying effect under variable conveying conditions

In addition, in the process of conveying materials in the screw conveying pump, since the blades of the screw shaft are smooth, it is easy to cause the material to slip on the surface of the blades, resulting in problems such as uneven material mixing and material blockage, which greatly reduces the work of the screw conveying pump. performance

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