There is a substantial solution to the problem of bearing "running ring" which troubles the mechanical industry of our country. Recently, Liu Yi, a process engineer of Shaoguan Casting and Forging Machinery Equipment Co., Ltd. of Guangdong Shaoguan Casting Group, has obtained a number of national patents for overcoming the outer ring of bearing running, and has been widely promoted in the jaw crusher of sand and aggregate industry.
The so-called "running ring" of bearings means that the outer ring of bearings has relative motion with the bearing seat or inner ring and shaft. The planetary gears of the wind power gearbox will have irreparable damage to the gearbox when the running ring occurs. At present, there is no mature technology to discover the bearing "running ring" fault in advance and solve it in time. Most of the bearing "running ring" fault is confirmed after the transmission is damaged.
Liu Yi, the inventor of this technology, has made a long-term study on the problem that the outer ring of jaw bearing of mining machinery, especially jaw crusher, seriously affects its service life. Finally, he has overcome this problem and applied for several patents. According to Liu Yi, after the bearing is assembled, the ball rotates, and the inner ring and the shaft do not move (the outer ring and the hole do not move). In the existing technology, the eccentric shaft and the inner ring of the bearing adopt interference fit. When assembling, the left and right inner rings of the movable jaw are heated separately and then inserted into the eccentric shaft. After normal temperature, the left side of the driven jaw is pierced to the right side for assembly. If the hole and outer ring of the movable jaw are interference fit, it can not be installed. If it can be installed, it is gap fit, sooner or later, it will run out of the outer ring, thus seriously affecting the jaw rupture life. The patent technology achieves the effect that the movable jaw bearing does not run out of the outer ring.
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