Cylindrical thrust roller bearing with novel combined cage
A technology for cylindrical roller bearings and cages, which is applied to roller bearings, bearing elements, shafts and bearings, etc., can solve the problems of low bearing life, improve bearing quality and production efficiency, and solve the problem of large thermal deformation and long service life Improved effect
Inactive Publication Date: 2010-07-28
WAFANGDIAN BEARING GRP CO LTD
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Problems solved by technology
[0003] In order to solve the problem of low bearing life, the invention provides a new thrust cylindrical roller bearing with combined cage
Method used
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[0009] The present invention will be further described below in conjunction with the accompanying drawings.
[0010] like figure 1 As shown, the thrust cylindrical roller bearing of the new combination cage includes shaft ring 1, roller 2, race 3, cage seat 4, spring pin 5 and cage cover 6. The roller 2 is installed in the cage seat 4, the cage cover 6 and the cage seat 4 are interference fit, the spring pin 5 connects the cage seat 4 and the cage cover 6, the roller 2, the cage seat 4, the spring pin 5 and cage cover 6 form a roller assembly, and the roller assembly, shaft ring 1 and seat ring 3 form a bearing. Wherein, both the cage seat 4 and the cage cover 6 are made of brass.
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The invention relates to a cylindrical thrust roller bearing with a novel combined cage, which is mounted on the large precision vertical lathe spindles and is mainly used in the lathe industry. The bearing comprises shaft washers, a roller, races, cage seats, a spring pin and a cage cover, wherein the roller is arranged in one cage seat; the cage cover is in interference fit with the other cage seat; the spring pin links the other cage seat and the cage cover; the roller, the cage seats, the spring pin and the cage cover form a roller assembly; the roller assembly, the shaft washers and the races form the bearing; and the cage seats and the cage cover are all made of brass. The invention has the following benefits: the cage cover is in interference fit with the other cage seat; linkage through the spring pin is adopted to replace screw welding, thus solving the problems of large deformation under heat in the original welding mode, insecure welding spots and complex machining process; and the quality and the production efficiency of the bearing are obviously improved and the service life of the bearing is also obviously prolonged.
Description
technical field [0001] The invention relates to a thrust cylindrical roller bearing of a novel composite cage mainly used in the machine tool industry and installed on the main shaft of a large-scale precision vertical lathe. Background technique [0002] The series of thrust cylindrical roller bearings installed on the main shaft of large-scale precision vertical lathes used in the machine tool industry originally used a combined structure of a cage seat and a cage cover. The connection between the cage seat and the cover is welded by screws. The defects of this structure It is because the rollers continuously hit the cage cover during the high-speed rotation of the bearing, so that the screw joints often open welding and cause falling off, resulting in a reduction in the bearing life. From the user feedback, this form of damage affects the bearing life. Therefore, improving the connection form of the combined cage is an effective measure to improve the life of the bearing....
Claims
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Login to View More IPC IPC(8): F16C19/30F16C33/50F16C33/56
CPCF16C33/4641F16C19/30
Inventor 李玉泉那华李爱君周健美
Owner WAFANGDIAN BEARING GRP CO LTD