Vertical-axis high-frequency vibration mixer

Abstract

The invention discloses a vertical-axis high-frequency vibration mixer. The vertical-axis high-frequency vibration mixer comprises a vibration driving unit, a mixing driving unit, a mixing cylinder, a mixing device and an exciter; the vibration driving unit and the mixing driving unit are both fixedly arranged above the mixing cylinder; the mixing device is arranged in the mixing cylinder; a hole is formed in the center of an upper cover of the mixing cylinder; the upper end of the mixing device is coaxially arranged in the hole; the exciter is arranged in the mixing cylinder below the hole, and is connected with the vibration driving unit through an exciter connecting shaft; the mixing driving unit is connected with the upper end of the mixing device; the exciter is a polygonal solid shaft or hollow shaft with N smooth projections on the cross section, wherein N is greater than 2, and the centroid is overlapped with a rotating center; the generated excitation frequency is positively correlated to the projection number N linearly; and the heights of the projections are changed to adjust the amplitude of exciting force. The vertical-axis high-frequency vibration mixer breaks through the limit of incapability of improving the excitation frequency of a traditional vibration mixer, further reduces the friction force among molecules, and greatly improves macroscopic and microscopic quality of concrete finally.

Description

technical field [0001] The invention belongs to the field of forced stirring equipment, in particular to a vertical shaft high-frequency vibration stirring machine. Background technique [0002] In recent years, my country's national economy has continued to develop, and domestic infrastructure construction has also continued to advance; cement concrete, as an important material in infrastructure construction, has higher and higher performance requirements during construction. However, at present, the concrete produced by ordinary mixers gradually shows shortcomings such as excessive cement consumption and cracking in the actual application process, which seriously affects the service life of the corresponding infrastructure. [0003] Studies have shown that the concrete produced by ordinary mixers is uniform on the macro scale, but on the micro scale, the cement particles in the concrete still have 10%-30% agglomeration. It is precisely because of the existence of these ag...

AI Technical Summary

Problems solved by technology

In order to achieve the purpose of fully improving the mixing quality of the mixture, the vibration mixer needs a high-frequency exciter, and the vibration frequency of the existing mixer is linearly related to the speed of the exciter. If the vibration frequency is simply increased by increasing the speed of the driving end Instead of using the new vibration excitation method, the bearing supporting the vibration shaft is prone to heat, which shortens its lifespan dramatically, which greatly limits the vibration frequency of the mixer, and ultimately leads to the inability to fully utilize the advantages of vibration and stirring

In addition, the existing form of the exciter makes the structure of the vibrating mixer more complicated

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