Cone crusher eccentric sleeve with thrust bearing design plane

Spring cone crusher eccentric sleeve is supported on the bottom plane of the thrust bearing , a thrust bearing mounted on the lower frame and the bottom cover , which consists of the thrust disk , wherein the useful two disc , useful three inquiry useful four . Two plate relative velocity , wear faster , which lower the relative velocity of the floating disk wear lighter .The plate number is too complex structure and large accumulated error , in order to adjust the gear backlash , often in the next the plate below addend piece thin gasket , and the scene with no processed iron gasket . Thus, the accumulated error is large, the eccentric sleeve skew lead crusher accidents . Spring type cone crusher main parts stress analysis , Therefore , the design of the thrust plate , in respect of the design at the same time adjusting pads of different thickness , of course , these gaskets must be after machining , so bring convenience to the user .

The plane thrust force of the sliding bearings and lubrication conditions adverse to checking their pv value , should take 2- 4MPa . Eccentric sleeve outer diameter D0 and height H is determined based on the existing data , and then the front obtained the force checking straight bushing FR0max allowable stress values = FR0max/D0HK <[p] Finally, should also be checking pv value should be allowable range, and to determine the position of the eccentric sleeve in the vertical direction , i.e. the height H1 of .

Crushing chamber , spherical bearings and spherical bearing structural position has been determined in the design of the eccentric sleeve . Accordingly, suspension by the dynamic cone and point to the height H of an upper surface of the eccentric sleeve , to meet two conditions : when the crushing force is constant, from the energy point of view to consider , H1 value as to be smaller as well . H1 value eccentricity e1 is small , the resistance generated by moment is small , on the contrary , the drag torque ;The H1 value by crushing cavity nesting not produce blocking materials to limit the . H1 value is small , rack mounted eccentric sleeve center sleeve and tendons board end with the discharge port close, easy to produce blocking material . Therefore, the position of the eccentric sleeve the H1 value must consider the above two requirements .

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