Elliptical Vibrating Screen with Three-short Excitation Motors Coupled by Torsion Springs
A technology of exciting motor and torsion spring, which is applied in petroleum, mining, metallurgy, and coal fields, can solve problems such as complex structures, and achieve the effects of low energy consumption, easy installation and maintenance, and simple structure
Active Publication Date: 2018-11-16
SOUTHWEST PETROLEUM UNIV
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Problems solved by technology
In actual engineering, to realize the tension-compression elastic rod coupling between two excitation motors, the structure is relatively complicated, and the asymmetric arrangement of the elastic rod relative to the screen box will also cause additional lateral swing of the screen box
Method used
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Embodiment Construction
[0015] Embodiment of the present invention is described in detail below in conjunction with accompanying drawing:
[0016] like figure 1 , figure 2 , image 3 As shown, the elliptical vibrating screen with three short excitation motors coupled by torsion springs of the present invention is composed of a feed hopper 1, a first excitation motor 2, a shield 3, a torsion spring 4, a second excitation motor coupling eccentric block 5, a second excitation motor The vibration excitation motor 6, the third vibration excitation motor 7, the motor base 8, the screen box 9, the vibration isolation spring 10, the base 11, and the first vibration excitation motor coupling eccentric block 12 are composed. The first vibrating motor 2 and the second vibrating motor 6 are mounted on the motor base 8 with their axes coincident, and arranged symmetrically along the center of symmetry in the width direction of the screen box 9 . One end of the first vibration motor 2 facing the second vibrati...
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The invention discloses a three-short exciting motor elliptical vibrating screen coupled by a torsion spring. The vibrating screen is composed of a feeding hopper, three exciting motors, a shield, the torsion spring, coupling eccentric blocks, a motor base, a screen box, isolation springs, a pedestal and the like. Two same exciting motors are installed in a coincidence mode, and the torsion spring is used for coupling connection of rotating shafts of the two motors, so that impact caused by starting of the two motors at the same time is buffered and absorbed, and zero-phase synchronization of the two motors is realized. Another exciting motor is installed in an axis parallel mode, and rotates at a constant speed reversely. The vibrating screen can make elliptical motion through exciting force generated by the three exciting motors. After stable operation, only one of the two coupled exciting motors needs to be powered on. The elliptical vibrating screen has the advantages that the influence of electromechanical coupling in a three-exciting motor system can be avoided, the exciting force of the exciting motors is brought into full play, and large amplitude and ideal ovality of the vibrating screen can be achieved easily; and energy consumption is low, the structure is simple, installation and maintenance are easy and convenient, and noise is low.
Description
technical field [0001] The invention relates to a vibrating screen for solid-liquid separation and solid-phase separation, especially for coal, mining, metallurgy, petroleum [0002] Large area elliptical shakers used in operations such as drilling. Background technique [0003] The elliptical vibrating screen can be realized by double-excitation motors and three-excitation motors. When dual excitation motors are used, the total excitation force is limited, and it is difficult to achieve the working parameters such as amplitude required for efficient screening of large vibrating screens. When three excitation motors are used for self-synchronous vibration, due to the electromechanical coupling between the vibrating screen system and the motor system, the two vibration excitation motors rotating in the same direction will appear in an anti-phase synchronous state, that is, the two excitation forces will appear In the synchronous state near 180°, the total exciting force is ...
Claims
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IPC IPC(8): B07B1/42B07B1/28
CPCB07B1/282B07B1/42
Inventor 侯勇俊方潘王钰文杜长成
Owner SOUTHWEST PETROLEUM UNIV