source: http://en.tsxbsy.com/news370592.html release time: 2018-9-15 14:23:00
The vibrating screen works with the reciprocating vibration generated by the vibration of the oscillator. The top rotating weight of the oscillator causes the screen surface to produce plane rotary vibration, while the bottom rotating weight causes the screen surface to produce conical rotary vibration, and the combined effect makes the screen surface to produce compound rotary vibration. The vibration track is a complex spatial curve. The curve is projected horizontally into a circle, while the projection on the vertical plane is elliptical. By adjusting the exciting force of the upper and lower rotating weights, the amplitude can be changed. By adjusting the space phase angle of the upper and lower weight hammers, the curve shape of the trajectory of the screen surface can be changed and the trajectory of the material on the screen surface can be changed. Do you know the structure of the vibrating screen? Let's take a look at it.
such as conveyor tank, screen box, table and balance frame, but there is no balance frame in some vibrating screen. In order to complete various processes, they usually do periodic exercises. As the main support of the vibrating screen, the stress and load condition of the screen box will directly affect the life of the vibrating screen. Therefore, special attention should be paid to the stress situation of the screen box. We can use the finite element software to analyze the specific load of the screen box, so that we can have a targeted solution to the knot of the screen box. Improvements were made to strengthen the areas needed to be strengthened.
-nbsp; 2. vibrator
-nbsp; used to produce periodic change of exciting force, so that the working body produces continuous vibration. Commonly used exciters are inertial exciter, elastic link exciter, electromagnetic exciter, hydraulic or pneumatic exciter, and cam exciter. For inertial vibrating screen, it uses inertial vibration exciter. The inertial exciter is mainly equipped with an eccentric block, which is excited by the eccentric force produced by the rotation of the eccentric block.
-nbsp; 3. Elastic element
-nbsp; including vibration isolation spring (its role is to support the vibration of the body, so that the body to achieve the required vibration, and reduce the dynamic load transmitted to the foundation or structure frame), main vibration spring (i.e. resonance spring or energy storage spring) and connecting rod spring (transfer of exciting force, etc.). In practical applications, spring groups are often used to achieve vibration or vibration isolation. This is because the spring is a kind of standard parts, its specifications are relatively fixed, for the spring with certain specific numerical requirements, we can only meet these conditions through the combination of several springs. More than
is the structure of the vibrating screen, and I hope it can help you. Eight hundred and eighty-eight thousand one hundred and eleven