From the point of view of the motion track of the screen box, the square swinging screen is also known as the reciprocating screen, and the vibration force generated by the driving device is a inertia force around the fixed axis and the direction changes according to certain rules, and its essence is the reciprocating inertia force formed by the rotation of the eccentric wheel around the fixed axis.
Square swinging screen
The working principle of the swinging screen is that after the screen machine starts, the shaking body of the screen box moves back and forth under the action of the inertial force, the screen box drives the screen surface to shake periodically, so that the material on the screen surface with the screen box makes a directional jump movement, during which, the material less than the screen surface aperture falls to the lower level through the screen and becomes the material under the screen. The material larger than the size of the screen surface is discharged from the discharge port after continuous tumbling and jumping movement, and finally the screening work is completed.
Square swinging screen is widely used in chemical and new materials, metallurgy, metal powder, mineral powder, food, salt, sugar, abrasive, feed and other industries. The circular motion of the exciter is transmitted to the screen surface through the square rotary screen, so that the material is quickly dispersed in the front of the screen machine, so as to achieve the purpose of screening.
The square swinging screen is mainly composed of inlet, screen frame, screen mesh, screen box, self-cleaning system, transmission, base, discharge port, motor and other parts.
1. Frame structure
The square swinging screen uses four universal transmission shaft to hang the box on the outside frame, our hanging is a double roller universal transmission shaft, two-way oil injection nozzle, through the transmission, the motor, so that the box plane rotation screening movement, not only stable, but also beautiful and generous.
2. Transmission
The gearbox of the whole box structure evenly distributes and transmits the prime power generated by the motor, and is also very firm, which is the key structure for the square swinging screen to imitate the artificial and gentle operation; The interior uses the best SKF or NSK pure imported bearings on the market, and the design is more advanced and stable.
3. Motor
When the motor is energized, it provides running power for the whole machine.
4, screen box and screen
Our grid is improved by long-term experience design and production process, the structure is more firm and powerful, the screen will be tightened so that the internal is not easy to cross the material, the screening accuracy is higher, but also more convenient to replace the screen; At the same time, according to the demand, multiple layers of screens with different mesh numbers can be added to the screening box to grade the materials; The screen box can be multi-box design according to the demand to increase the efficiency; Each screen cell has a reasonable size and number of bouncing balls to clean the mesh during the screening process, so that the screening efficiency is more guaranteed, and the protective cloth on the screen can more effectively extend the service life of the screen.
5. Feed port
The feed port has changed the original design attached to the rear door, and the structure of the parting plate has been added to make the feeding more simple and fast, and the parting more effective. The reduced weight of the rear door makes the rocking motion of the feed end more powerful. The material put into the screen surface is dispersed and screened more quickly.
6. Discharge port
The discharge port of the square swinging screen is located below the inclination of the square swinging screen, which can be designed according to the customer's material screening needs by changing the Angle, length and diameter of the discharge port to adapt to the flow of various characters of materials out of the screen body. Our design focuses on the convenience of large flow, fast and non-clogging outflow screen body, changing various angles, increasing the diameter of the discharge pipe, reducing the outflow distance and other process methods.
7. Self-cleaning system
The automatic cleaning system consists of a bouncing ball and a backstop net, distributed between the screen, when the screen machine is running, the bouncing ball works at the same time, impacting the screen to solve the problem of material plugging.
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