A new type of self-synchronizing double motor installation form of resonant screen

Abstract

The invention discloses a novel self-synchronizing bi-motor installing-form resonance screen, which comprises an exciting body (4), a screen bed (1), a main vibrating spring (7), an isolation spring (2) and two vibrating motors (3), wherein the vibrating motors (3) are fixedly installed on a motor beam (8), the section of the motor beam (8) is I-shaped, the motor beam (8) comprises an upper plate (9), a lower plate (10) and a web plate (11), the two vibrating motors (3) are symmetrically arranged at both sides of the web plate (11) through a plurality of connecting bolts (12), and the resultant force of the vibrating motors (3) is parallel to the web plate (11). The novel self-synchronizing bi-motor installing-form resonance screen has the beneficial effects that the stress requirements of the motor beam can be met while the integral height of equipment is effectively controlled; a height space is fully utilized, so that a higher I-shaped beam can be designed, and therefore the anti-bending strength is greatly improved; however, the equipment is not higher than a traditional vibrating screen, so that the application of a self-synchronizing bi-motor by medium and large vibrating motors becomes possible.

Description

technical field [0001] The invention relates to the technical field of vibrating screens, in particular to a novel vibrating screen in the form of self-synchronized double motor installation. Background technique [0002] Since the 1960s, due to the discovery that the inherent characteristics of vibration can be used in vibrating machinery, self-synchronization is realized between two eccentric rotors driven by two motors, forming a stable resultant force, driving the vibrating screen along a straight line, a circle Track or elliptical track vibration greatly simplifies the structure of the vibration machine. After decades of development, a mature vibration motor manufacturing industry that combines eccentric rotors and vibration motors has been formed, and is widely used in various vibration machines. This technology is known in the industry as the second-generation synchronization method, that is, vibration synchronization, or self-synchronization. The first-generation s...

AI Technical Summary

Problems solved by technology

But its shortcomings are that the device is large in size and needs to occupy a large space; the motor is placed on both sides of the sieve bed, the rigidity of the connecting piece and the synchronization of the two motors are poor.

Higher bending strength requires height, and installing the vibration motor on the motor beam wastes height space

[0013] For near-resonant screens, the patent 201210054004.9 "a two-mass resonance screen" uses a connecting shaft to connect multiple motors together, and the structure is complex

Patent 201220637538.x "A New Two-Mass Resonant Screen" and Patent 201220531087.1 "A New Combined Vibration Motor" use a coupling to connect the motor and the exciter, increase the distance between the exciters, and improve the motor beam. force, but does not use a general-purpose vibration motor, and its structure is more complicated

Patent 201120416481.6 "Double Mass Resonant Screen" uses dual vibrating motor self-synchronization technology, but uses 3 heavy-duty beams to meet the strength requirements, and uses a custom-made motor, which has poor versatility

Patent 201310366160.3 "A two-mass near-resonant screen with separated screen frame and screen bed" installs two self-synchronous motors in the center of the motor beam. Although a smaller vibration motor is used than a non-resonant screen, the motor beam is affected Force can still be further optimized

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