Rotary rate is an important working parameter

 

 
During the running process of Ball mill , rotary rate is an important working parameter because proper rotary rate can improve the working efficiency of the grinding mill. Low rotary rate will influence its working capacity, and high rotary rate may aggravate the abrasion of the spare parts and reduce the working efficiency of the grinding mill. For this reason, it is necessary to choose the optimum rotary rate for ball mill.
According it structural composition, the toggle plate can be divided into assembling type and integral type. The lining board of the simple-pendulum Jaw crusher has assembling type structure and it is assembled after connecting as toggle plate and two toggle heads. In this way, when the toggle plate is abraded, it is only necessary to change the easy-abrasive and damaged toggle plate head in order to save the consumption of metal. In the actual application, this toggle plate is very heavy, so that it is necessary to design a lifting ring. The compound pendulum jaw crusher uses integral type toggle plate whose weight and size are very small.
According to the connecting method of the toggle head and the toggle cushion, the toggle plate can be divided into rolling type and sliding type. A big squeezing force is transmitted between the toggle plate and the gasket and the toggle also has to sustain the periodic impulse load. Under the repeated squeezing and impacting effect, the abrasion of the toggle plate is very fast, especially for the sliding type structure. In order to improve the driving efficiency, reduce the wear-out part and extend the service life of the toggle plate, the rolling type structure is often adopted. During the operational process of the machine, the angle of oscillation of the movable jaw is very small, so that the included angle in the perpendicular line direction of the toggle cushion surface supported on both sides of the lining board is very small, and the toggle plate and the toggle cushion can maintain pure rolling, in this way, the abrasion of the toggle plate will be reduced, thus greatly prolonging the service life of the toggle plate.

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