Direct-drive crystallizer vibration generating device and non-sinusoidal vibration method

Abstract

The invention discloses a direct-drive crystallizer vibration generating device which comprises a vibration platform, wherein the vibration platform is connected with a connecting rod; the connecting rod is connected with a linear motor; the linear motor drives the connecting rod to drive the vibration platform to move; the linear motor is connected with a control component; and the control component controls the moving mode of the linear motor. The invention also discloses a non-sinusoidal vibration method realized by the device. The vibration formula is shown in the specification, wherein Tis the vibration period, tA is the rising half period, tC is the falling period, f is frequency, t is time, h is amplitude, and alpha is the deviation rate. According to the invention, a transmission system is simplified and has a compact structure, and other mechanical structures of the existing traditional mechanical type crystallizer vibration device do not need to be changed; the motor is directly driven to operate up and down, and the service life is prolonged; and the entire structure has the advantages of large bearing capacity, strong impact resistance, high reliability and the like.

Description

technical field [0001] The invention relates to a crystallizer vibration generating device for metallurgical continuous casting, in particular to a direct drive crystallizer vibration generating device. Background technique [0002] Mold vibration is one of the core technologies of continuous steel casting, and its generator is the heart part of mold vibration, which has been the research object of continuous casting workers for many years. Especially in recent years, the form of non-sinusoidal vibration has gradually become popular in crystallizers. Because this technology has obvious effects on increasing the casting speed and improving the quality of the cast slab, the generator of the crystallizer vibration mechanism has become the focus of research by professionals. As a result, there have been a variety of non-sinusoidal vibration in the industry. crystallizer vibration generating device. To realize non-sinusoidal vibration, its generating device must be a motion con...

AI Technical Summary

Problems solved by technology

However, in practical applications, the servo hydraulic cylinder has the disadvantages of complex system, large maintenance, and high investment price; the disadvantage of the servo electric cylinder is that the up and down vibration of the crystallizer depends on the frequent forward and reverse rotation of the servo motor. Realized, and the mass of the crystallizer vibrating table is relatively large, this frequent forward and reverse will inevitably affect the response speed and tracking accuracy of the crystallizer vibration displacement, speed and other curves, so the vibration table The design must meet certain requirements, so that it is subject to certain restrictions in promotion and application

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