A Split Spherical Roller Bearing for Heavy Duty Converter Trunnion

Abstract

The invention provides a split spherical roller bearing for a heavy-duty converter trunnion. The split spherical roller bearing includes an outer ring, a cage and an inner ring; the cage is respectively set up corresponding to each row of rollers of the split spherical roller bearing, and the axial distance between two adjacent cages There is a gap; the split cut of the outer ring is an oblique cut, and the outer ring positioning cylindrical pin (11) is arranged in the annular oil groove on the outer surface of the outer ring, and the height of the outer ring positioning cylindrical pin (11) is lower than the height of the annular oil groove; There are two positioning cylindrical pins (11) for the outer ring, which are respectively located at the cutouts of the outer ring; connecting screws (3) are provided on the fixed rib in the middle of the half inner ring (6); there are two pins on the end surface of the inner ring A cylindrical blind hole, and the cylindrical blind hole is located at the split notch of the inner ring; corresponding to the cylindrical blind hole, a positioning cylindrical pin (5) of the inner ring matching it is provided. The invention has the characteristics of high radial and axial combined bearing capacity, low risk of cutting, high reliability, and convenient assembly and disassembly.

Description

technical field [0001] The invention relates to a bearing, in particular to a split spherical roller bearing for a heavy-duty converter trunnion. Background technique [0002] With the continuous deterioration of the economic situation, the operating conditions of steel mills are becoming increasingly severe. In order to improve production efficiency and save production costs, converter equipment is also increasingly large. Correspondingly, the load capacity and size of converter trunnion bearings are also increasing, and the traditional split spherical roller bearings have been difficult to meet the actual needs. [0003] The traditional split spherical roller bearings mainly have two forms: pillar welded cage structure and double claw integral cage structure. [0004] Such as Figure 6 As shown in the figure, the spherical roller bearing is split by welded pillars and cages. It uses hollow rollers, and pillars are pierced in the roller pillar holes. One end of the pillars...

AI Technical Summary

Problems solved by technology

[0009] A split spherical roller bearing for a heavy-duty converter trunnion, the split spherical roller bearing includes an outer ring, a cage and an inner ring; the outer ring is installed in a split bearing seat; the The outer ring is a split structure formed by butting two half outer rings; the middle part of the outer surface of the outer ring has an annular oil groove arranged along the circumference of the outer ring; the inner ring is installed on the trunnion; The inner ring is a split structure formed by butting two half inner rings; on both sides of the outer surface of each half inner ring there are half fastening rings for connecting the two half inner rings into one ; The cages are respectively provided for each row of rollers of the split spherical roller bearings, and there is a gap between the axial directions of two adjacent cages. When the cages tend to skew, it can also play a role The function of mutual guidance and righting; when the bearing is subjected to a huge impact, it can avoid the risk of deformation or even fracture of the overall double-claw structure cage due to the difference in the speed of the two rows of rollers and the unbalanced force, and the cage of each row The bearing assembly and roller assembly can be moved, installed and disassembled independently, and the bearing assembly and maintenance are very convenient; the cage is a single claw cage formed by butting two half cages, and the outer side of each half cage is A half cage cover is connected to prevent the rollers from falling out; the split cut of the outer ring is an oblique cut, and the outer ring positioning cylindrical pin is arranged in the annular oil groove on the outer surface of the outer ring, so as to realize two and a half outer rings The axial positioning of the ring; the height of the outer ring positioning cylindrical pin is lower than the height of the annular oil groove, so as to prevent the outer ring positioning cylindrical pin from blocking the circular flow of lubricating oil in the annular oil groove; the outer ring positioning cylindrical pin There are two, respectively located at the split notch of the outer ring; the blind hole matched with the positioning cylindrical pin of the outer ring is located at the split notch of the two half outer rings; on the fixed rib in the middle of the half inner ring There are connecting screws used to connect the two halves of the inner ring as a whole, which solves the problem that when the bearing bears a large radial load, there will be a relatively large gap in the middle of the two halves of the inner ring due to force deformation, and improves the bearing capacity. reliability

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