The transmission part of the tumbler screen transfers the power of swinging movement to the cylinder of the sieve machine, and the motor decelerates through the triangle belt and transfers the power to the main shaft; The overall design of the transmission part is carried out in the pyramid protective cover. The swing motion adjustment part of the tumbler screen adjusts the circular rotation of the spindle to the spatial swing motion of the set swing axis. Including sieve box base frame, the adjustment mechanism of radial deviation, radial deviation Angle and tangential deviation Angle, and the adjustment mechanism are set up to resist the imbalance caused by swing. The working part of the sieve box of the tumbler screen realizes the screening operation, and the part of the cylindrical sieve box realizes the spatial swing movement set on the swinging axis. The screen box comprises an inlet, an outlet and a pressing device. Other parts of the tumbler screen include supporting rubber tension springs, vibration testing devices, observation ports and lubrication systems. The tumbler screen adjusts three main parameters, that is radial deviation distance, radial deviation angle and tangential deviation angle., and realizes the three-dimensional swing of the screen box through the drive of the motor belt. After the screened material enters the center of the top screen surface through the feed port, it conducts three-dimensional space movement, including radial centrifugal movement, radial parabolic movement and tangential parabolic movement. The combination of three directions realizes the uniform distribution of materials on the whole screen surface and the spiral movement of materials group from the center to the edge. The material group is fully in contact with the screen surface in the spiral outward throwing motion to realize the screening of materials. The material on the screen is discharged through the discharge port and becomes a certain grain grade product. The bottom material will be sifted through the second layer of the screen until the bottom layer of the screen. In general, the layer screen machine can get n+1 kind of grain grade products. At present, there are up to 5 layers of screen surface, and up to 6 kinds of products with different grain size can be obtained. For fine screening with high screening accuracy requirements, it is also possible to produce only 2 grain-grade products with multi-layer screen through internal design. There are many patterns of combination change in this area.
The development trend of tumbler screen.
1.large-scale. It mainly expanding the application field of large-scale screening machine. It needs more large capacity, and wider size of the particle range in mining, sand industries, in order to meet those requirements, we can increase the size and area of tumbler screen. This research and development tendency in this direction involves the design method of dynamic characteristics of screen machine and the processing and manufacturing technology. 
Development tendency of automatic adjustment or automatic dynamic balance system for unbalance of tumbler screen to reduce dynamic load transferred to foundation and additional dynamic stress of equipment components.Although there have been many successful cleaning methods, but is to solve the screen mesh plugging, especially fine size screening will always be an active research topic and development direction, enterprises will also be further strengthened in the use of screen machine and operating comfort research.There are also many enterprises producing tumbler screen China. These enterprises have made great achievements through introduction, learning, reference and independent research and development. Their products have occupied most of the domestic market and exported to Asia and Africa.In order to catch up with the products and manufacturing level of the world's most advanced enterprises, efforts should be made in innovative design, processing technology, basic experimental research, reliability research and other aspects of products, to improve visibility, establish brand effect, improve the competitiveness of enterprises in the global market.