当两台振动电机做同步、反向旋转时，两振动电机轴相对筛面有一倾角，两振动

When the two vibration motors are synchronized and reversely rotated, the two vibration motor shafts have an inclination angle with respect to the screen surface. The two vibration motors are stacked in a direction perpendicular to the motor axis to form a combined force. The excitation force generated by the eccentric block is parallel to The direction of the motor axis cancels each other. When the two vibration motors are synchronized and reversely rotated, under the combined force of the excitation force and the material's gravity, the material is thrown up and jumped forward in a linear motion on the screen surface, thereby achieving The purpose of screening and grading materials [16].

When the two vibration motors do synchronous, reverse rotation, the two vibration motor shafts relative to the sieve face has an inclination, the two vibration motors in the direction of the vertical motor shaft stacked into a combined force, the eccentric block of the generated vibration force in parallel to the direction of the motor axis offset each other, when the two vibration motors do synchronous, reverse rotation, in the vibration force and the material from gravity force, the material is thrown on the surface to jump forward.

When the two vibrating motors are rotating synchronously and reversely, there is an inclination angle between the two vibrating motor shafts and the screen surface. The two vibrating motors are superposed into a resultant force in the direction perpendicular to the motor shaft, and the exciting force generated by the eccentric block is mutually offset in the direction parallel to the motor axis. When the two vibrating motors are rotating synchronously and reversely, under the combined force of the exciting force and the self gravity of the material, the material It is thrown on the screen surface and moves forward in a straight line, so as to achieve the purpose of screening and grading materials [16].