Elliptic vibration machine with parallel shafts and double excitation motors

Abstract

The invention relates to an elliptic vibration machine with parallel shafts and double excitation motor. The elliptic vibration machine mainly consists of a feed hopper, a vibration body, first and second excitation motors, a swing motor base, swing motor base vibration damping springs, a vibration body support spring, a base, and the like. The first excitation motor is directly arranged on the vibration body, and the second excitation motor is arranged on the swing motor base connected the vibration body, through a hinge. Under the action of a group of vibration damping springs between the swing motor base and the vibration body, the swing motor base and the second excitation motor swing together in a certain angle range through the excitation force generated by the second excitation motor on the swing motor base. The generated centrifugal inertia force and the excitation force of the excitation motors are combined to ensure that the vibration body does an approximately linear motion. The vibration body does a circular motion through the excitation motors directly arranged on the vibration body. The two motions are combined to form an elliptic motion of the vibration body. The elliptic vibration machine with the parallel shafts and the double excitation motors has high strength of the vibration body, even force output of the two motors and capability of realizing the needed elliptic motion.

Description

technical field [0001] The invention relates to an elliptical vibrating machine with parallel shafts and double excitation motors used in petroleum, coal, metallurgy, chemical industry, construction and other industries. Background technique [0002] At present, there are the following types of elliptical vibrators at home and abroad using dual excitation motors: [0003] The elliptical vibrating screen of U.S. Patent US5265730 uses two identical short excitation motors, which are symmetrically installed on both sides of the screen box. The projection in the motion plane of the screen box is an ellipse, and a component force is generated in the direction perpendicular to the side plate of the screen box. The symmetrical arrangement of the two motors makes this component force cancel each other out. When the translational elliptical motion of the screen box is to be realized, the line connecting the midpoints of the axes of the two motors must pass through the center of mass...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the large stress of the screen box caused by the installation of the two motors in a "eight" shape in the current elliptical vibrating screen with double excitation motors of equal mass diameter product, or the reduction of the excitation force of the motors, and the unequal mass diameter. Based on the shortcomings of the large difference in the excitation force of the two motors in the double-excitation motor elliptical vibrating screen, it provides a screen that can use equal mass diameter products and the two motor axes are parallel, the motor is easy to install, the excitation force is large, the processing capacity is large, and the screening efficiency is high. High dual excitation motor elliptical vibrating machine

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