The principles and characteristics of the lime mill

 

intermittent ball mill work, the two-motor synchronous stone crushers reverse to place the shock [Mobile Crusher:http://www.xb-machine.com/Crushing_Machinery/Mobile-Crusher.html] vibrator reverse the exciting force, forced sieve driven screen for vertical movement, so that on the material by the exciting force and periodically forward throw a range, thus completing the material screening operations, intermittent ball mill crank linkage as the transmission components, electric motor through belt and pulley driven eccentric shaft rotation, the body for reciprocating movement along a certain direction by the rod.A.Eccentric intermittent ball mill shaker, most of the eccentric shaft vibration exciter and box-type shaker.Eccentric shaft vibration exciter installation and adjustment is convenient, but the cost is higher, and the eccentricity can not be adjusted; box-type exciter uses eccentric block of the relative position of adjustable fan, exciting force size adjustment to achieve the amplitude adjustable purpose.Eccentric quality centrifugal force generated by the eccentric shaft bending, leading to relative deflection of the bearing inner and outer rings, the eccentric will have to turn the frequency of its order harmonic vibration exciter work, so the inertia force generated in the operation and couple of inertia will cause the bearing reaction forces and vibration, undermining the state of steady work of bearings and other components to produce high frequency vibration. alicey599 The study analysis showed that the same order natural frequency of a vibration exciter bearing vibration frequency and the flexibility of the screen box, will cause the strong vibration of the screen box elastomer.Bearing with eccentric system composed Mobile Crusher of the vibration system can be regarded as a single degree of freedom system.Bearing the initiative axis and the driven shaft system there are a certain value, the resonant frequency, if a particular excitation frequency and the resonance frequency is close to, the occurrence of resonance.In addition, the existence of centrifugal force due to eccentric bending vibration, if the speed is close to the threshold, then the bending resonance.Two.The intermittent ball mill bearing geometric accuracy exciting force, resulting in bearing radial force, resulting in strong vibration.Bearing the higher the precision, the smaller the vibration.

  

The raceway especially the surface waviness of the rolling element bearing the effects of vibration, the rolling element and to maintain the gap of the frame and inside and outside the ring rolling surface and their relative motion will cause the bearing vibration, which is due to the higher frequency of rolling element spin work at the same time the surface in contact with internal and external raceway, rolling, ring, the vibration generated by the size of the cage is roughly 4:3:1 relationship.Lower bearing vibration should first improve the machining accuracy of the Rotary dryer surface of the rolling element.3.Bearing radial clearance radial clearance is greater than crusher machine the small will produce large vibration bearing system.Radial clearance is too small to cause high-frequency vibration is too large to cause low-frequency vibration.The test results show that the intermittent ball mill bearings, radial clearance is too large, reducing the natural frequency of radial bearing elastic system, prone to resonance, resulting in a larger low-frequency vibration.This is because the point of impact of the rolling element and the ring will have a greater acceleration.The impact of early, resulting in nothing to do with the mechanical quality and shapes high frequency compression wave, and descendant of the metal interior; and the impact of the late, and a shock compression wave of low frequency mechanical vibration generated by mechanical force.Therefore, the radial clearance larger cause bearing vibration intensified in the passband.4.With the outer ring and the bearing hole tie will affect the vibration transmission, tight fit will force the raceway deformation, increase the shape error, resulting in the vibration increase.Loose with the film damping effect can make the gap.The outer ring and the bearing supporting hole of the material properties vary, especially in the meantime placed the rubber damping ring, can inhibit the transmission of vibration.5The friction and lubrication of bearings is the main source of vibration, intermittent ball mill is more difficult to control [Mobile Crusher:http://www.xb-machine.com/Crushing_Machinery/Mobile-Crusher.html] due to the intermittent ball mill by the great driving forces to maintain the work, so the bearing radial force suffered intermittent ball mill in the course of their work , a lot of exciting force caused by the elastic vibration of the bearing system.If the poor lubrication, will produce larger friction bearing temperature rise too high, thermal expansion is too large, the radial clearance significantly reduced, which in turn exacerbate the friction, temperature rise to further improve.Above is the company's technical staff to help you summarize the main factors of intermittent mill rolling bearing vibration, in fact, intermittent ball mill in the crushing and grinding operations is very broad, intermittent ball mill routine maintenance and maintenance must be To achieve the most comprehensive, so as to make the device more convenient in the course.