One, the function and structure of thrust bearing cone crusher thrust bearing the eccentric shaft bearing empty, reduce the idle eccentric shaft resistance.At the same time, install it directly influences the precision of bevel gears meshing clearance, to ensure reasonable empty eccentric shaft sleeve and the spindle fit clearance, avoid the phenomenon of "speed". Second, the thrust bearing of crapping in crusher operation process, the thrust bearing on circular plate is combined with empty eccentric shaft with pin 1, 2 and rotates;The following three jaw circular plate 5 through the surrounding three jaw and bottom cover 7 Mosaic;The circular plate in the middle of the circular plate in 3 and 4 as relative sliding.So a total of three groups of contact area between pieces of 2 and 3, namely between pieces of 3 and 4, 4 and parts need to pass between 5 crapping to ensure the good running condition.Crapping aim is to make plain bearing uniform compression, create conditions for good lubrication performance of the liquid.Whole process can be divided into coarse and fine shave two parts.Crapping can check two contact surface flatness, can use red lead powder evenly and thin coating test for two contact surfaces according to clockwise to turn first, second to study can be used inverse direction, cross research of later.And then start the coarse scraping, can be used when special 25 mm flat shovel knife or diameter larger.Coarse scraping will contact all away after the study, when not come into contact with the scraping, knife track movement distance not greater than 25 mm, scraping knife to a hook.So to research after scraping.Every scraping can be reserved part of the contact point. Such as two contact each other When basic evenly distributed, but the shovel with fine save point, at this time should be paid attention to from the center of circular plate, the greater the diameter, the contact point for distribution points should be better.Repeatedly to grind fine after shave, make the contact point between the two contact surfaces require in every 25 mm X 25 mm within not less than 3 points.3 contact crapping all can use the same method as above.Considering the rounded planks different optional hard material, the circular plate crapping first, and as a datum.Non-uniform contact surface contact or contact too little, too much will affect the surface bearing flat running state.Found many times in the on-site troubleshooting caused three jaw circular plate velocity is not zero, forced to make three jaw circular plate on the circumference of a circle Three jaw damage, intensifying the circular plate wear (lining) according to the circumference of a circle, from circular to irregular oval after wear, make the breaker failure or cause "flying cars" phenomenon. Three, the installation of the thrust bearing to ensure the installation precision of thrust bearing on the cone crusher is a necessary condition for normal operation of the crusher.Installation according to the following steps: (1) young thrust uranium bearing installation is to be the order of the contact surface between each other and crapping to ensure consistent.(2) to make the first three jaw circular plate on the bottom cover should be smooth, what to do in case bottom cover casting burr and the remainder of the sand to clean up, and then pour lubricating oil to coincide with three jaw circular plate on leveled position to test whether the smooth plane.Detection can be gently with sling around three claw discs, if oil splash is proved from the circular plate circle out to three jaw there is still a gap between the disc and the bottom cover, should be cleaning, repair again.(3) in the circular plate and circular plate installed, detection method is still can use the above method.(4) the last empty eccentric shaft installation, spherical frame and the main shaft.Empty eccentric shaft hoisting, wheel balance weight should be placed in the small bevel gear, the bevel gear end alignment, outside the sphere after installation, should make the spherical bearing and stand by interference fit as much as possible, appropriate tight should not be loose.Successively detected during three data: cone asked umbrella tooth gap a;Gaps between spindle and taper sleeve b;Air gap at the bottom of the eccentric shaft end face with spherical tile c.(5) integrated into consideration with the above three data check of the cone bearing clearance, namely three claw discs and machine bottom cover the location of the determined.Clearance using common plate production, but as far as possible avoid using steel plate thickness superposition to complete.If the large gap in 3. More than 5 mm, should consider the machine bottom cover with the frame part to reduce the thickness of the gasket or directly reduce the total height, bottom cover itself according to field experience.