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Detailed explanation: cone crusher bearing repair method
Source: China Bearing Network Time: 2013-02-15
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2. The grinding of the thrust bearing is in the working process of the crusher; the upper circular plate 2 of the thrust bearing is connected with the hollow eccentric shaft 1 by a pin; and is transformed accordingly; the lower three-claw circular plate 5 passes through the peripheral three-claw Inlaid with the bottom cover 7; and the middle circular plate 3 and the middle circular plate 4 are relatively slid. Then a total of 3 sets of touch faces are between the parts 2 and 3; between the parts 3 and 4; the pieces 4 and 5 The need to grind to ensure its outstanding working condition. The purpose of the grinding is to make the flat bearing evenly pressed; to create conditions for the smoothness of the liquid. The whole process can be divided into two parts: rough scraping and fine scraping. You can first check the flatness of the two touch surfaces; you can use the red and pink powder to evenly and thinly apply to detect the two touch surfaces to change in a clockwise direction; the second time to the research, you can use the reverse direction to change; Grinding. Then start with a rough scraping; when scraping, you can use a 25mm flat-blade special blade or a slightly larger diameter. When rough scraping, the touch surface will be scraped off after grinding; if you don't touch it, you can't scrape; the knife movement interval is less than 25mm. The scraped blade should be hook-shaped. Repeat the scraping after grinding. Each scraping can be guaranteed. Some touch points. When the two touch points are evenly distributed, the monthly scraper can scrape the oil storage point; at this moment, it should be paid attention to from the middle of the circular plate; the larger the diameter; the better the touch point demand distribution point should be. The touch point between the two touch surfaces is required to be no less than 3 points in every 25mm X 25mm. The grinding method of the three touch surfaces can be the same as above. It is considered that the magnetic material of each circular plate is not magnetic. The machine is selected as the same; the disc with a harder material can be scraped first; and this can be used as the reference surface. The uneven touch point on the touch surface or too many touch points will affect the flat working condition of the plane bearing. In the repair of defects, it has been repeatedly found that the speed of forming the three-claw circular plate is not zero; the three-claw of the three-claw circular plate is damaged; the weighted circular plate (friction plate) is worn in the circumferential direction; Regular oval shape; causing the crusher to appear faulty or form a "speeding" appearance.
Third, the thrust bearing device ensures that the accuracy of the thrust bearing on the cone crusher is a necessary condition for the normal operation of the crusher. The device can be as follows: (1) The device for pushing the uranium bearing should be compared with each other. The order of the touch surfaces is ensured to be common. (2) The three-claw circular plate should be placed in the bottom cover first; the casting burrs and the remaining molding sand should be cleaned in the bottom cover; then the smooth oil is poured to the right The flatness of the three-jaw concentrator circular plate is used to check whether it is stable. The detection of the spreader can be quietly impacted around the three-claw disc; if the oil splashes from the circumference of the circular plate, it proves that between the three-claw disc and the bottom cover There are still gaps; it should be sorted and repaired from the beginning. (3) Then the middle circular plate and the circular plate are arranged in succession; the above method can still be used for the detection method. (4) The final device is an empty eccentric shaft, a spherical pedestal and a main shaft. When the eccentric shaft is hoisted; the large gear counterweight should be placed above the small bevel gear; the outer end of the bevel gear should be aligned; after the spherical tile device; the spherical bearing seat and the frame should be used as much as possible for interference cooperation; Three data were measured successively: the conical umbrella tooth gap a, The price gap between the shaft and the taper is the price gap b, the end of the empty eccentric shaft and the bottom of the spherical girders c. (5) summarizing the above three data to consider the gap between the sandstone production line and the bearing cone bearing That is, the orientation of the three-claw disc and the bottom cover of the machine is determined. The void sheet is made of a general plate; however, the thickness of the steel plate is prevented as much as possible to complete. If the gap is more than 3, the jaw crusher factory is larger than 3. 5mm or more; should consider the bottom cover of the machine and the joint of the frame to reduce the thickness of the gasket or directly lower the total height of the bottom cover itself.
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