Vibrating screen selection of rubber spring or coil spring, in fact, rubber spring and coil spring have advantages and disadvantages, the comparison is as follows: Advantages of rubber spring: simple structure, low noise.
Rubber spring shortcomings: considering the strength of the rubber spring, the design can not make the stiffness down, the stiffness is 1.5 to 2 times of the coil spring, therefore, the dynamic load to the foundation, life is not as good as the coil spring. coil spring advantages: can be designed to be quite soft, small stiffness, to the foundation of the dynamic load is much smaller than the rubber spring.
Helical spring disadvantages: complex structure, easy to produce noise. Therefore, large vibrating screen using coil spring is better, as far as possible to reduce the dynamic load of vibrating screen. Small and medium screen can use rubber spring, because the structure is simple.
In other words, screw springs are used for vibrating screen tonnage over 15 tons. Vibrating screen more than 25 tons, it is recommended that in addition to the use of coil spring, can consider the design of vibration frame (two vibration isolation), because the vibration frame can effectively reduce the dynamic load of the vibrating screen more than 50%, the disadvantage is that the weight of the vibration frame is larger, in order to achieve better vibration reduction effect.
The weight of the vibration frame must be about 40% of the vibrating screen vibration weight, Furthermore, the overall height of the vibrating screen will increase by about 30%, and the overall stability of the screen body is also poor. Therefore, unless it is particularly necessary for vibration reduction requirements, it is not economic