A method for preventing abnormal contact between backing bearing retaining ring and roller set
An abnormal technology for bearing retaining rings, applied in the direction of connecting components, mechanical equipment, etc., can solve the problems of affecting the formation of elastic oil film, increasing the friction between rollers and retaining rings, heat generation, and abnormal contact of rollers, etc., to achieve extended The effect of service life
Inactive Publication Date: 2016-05-25
LUOYANG JUCHUANG BEARING TECH
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Problems solved by technology
Affected by the manufacturing accuracy of the saddle, the retaining ring of the bearing will be slightly warped and deformed during operation, causing the side of the retaining ring close to the roller set to be in abnormal contact with the rollers
When the bearing is working, the rotating roller and the retaining ring surface are in abnormal contact, which affects the formation of the elastic oil film, increases the friction and heat generation between the roller and the retaining ring surface, and affects the normal use of the bearing.
Seriously, it will shorten the service life of the backing bearing of the Sendzimir 20-high rolling mill, or even damage the bearing
Method used
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Embodiment Construction
[0014] Such as figure 1 , 2a , 2b: a method to prevent abnormal contact between the rolling mill backing bearing retaining ring and the roller set is on the plane of the retaining ring where the bearing retaining ring 1 contacts the saddle 5 and corresponds to the roller set 4 Turning a step surface 6, the step surface 6 is 0.1mm-2mm lower than the retaining ring plane in contact with the saddle 5, so that the bearing retaining ring 1 does not contact the saddle 5 within the working radius of the roller set 4. That is, a step surface 6 is formed on the contact surface between the bearing retaining ring 1 and the saddle 5, so that the bearing retaining ring 1 does not contact the saddle 5 within the working radius of the roller set 4, and the rest of the bearing outer ring 3 is still stuck. The saddle 5 normally fits the installation. Therefore, the processing error of the saddle 5 cannot be transmitted to the bearing retaining ring 1, so that the deformation of the bearing r...
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The invention relates to the technical field of bearings, and discloses a method for preventing a check ring of a back-up bearing from abnormally contacting a roller group. According to the method, a step surface corresponding to the roller group is turned on a check ring-saddle contact surface where the check ring is contacted with a saddle, and is 0.1-2mm lower than the check ring-saddle contact surface, so that the check ring is not contacted with the saddle in a working radius range of the roller group. The method can overcome defects of the prior art, and a machining error of the saddle is not transferred to the check ring, so that the check ring cannot be deformed and cannot be abnormally contacted with the roller group; meanwhile, the normal use of the check ring is not influenced, and the service life of the back-up bearing of a Sendzimir twenty-roller mill.
Description
technical field [0001] The invention relates to the technical field of bearings, in particular to a method for preventing abnormal contact between a retaining ring of a backing bearing of a rolling mill and a roller set, which is suitable for a 20-high Sendzimir rolling mill. Background technique [0002] At present, the backing bearings of the Senkimir 20-high rolling mill are used in groups of six sets installed on the saddle (the installation of a single bearing and the saddle is as follows: figure 1 shown). Affected by the manufacturing accuracy of the saddle, the retaining ring of the bearing will be slightly warped and deformed during operation, causing the side of the retaining ring close to the roller set to be in abnormal contact with the rollers. When the bearing is working, the rotating roller and the retaining ring surface are in abnormal contact, which affects the formation of the elastic oil film, increases the friction and heat generation between the roller a...
Claims
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IPC IPC(8): F16B21/10
Inventor 范凌鹤侯丽袅卫雅静董晓红
Owner LUOYANG JUCHUANG BEARING TECH