Roller bearing
A technology of roller bearings and cylindrical rollers, applied in the directions of bearing elements, shafts and bearings, shafts, etc., can solve problems such as bearing damage, achieve the effect of large deflection and meet the needs of thermal expansion and displacement
Inactive Publication Date: 2017-05-24
新昌县明瑞关节轴承有限公司
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Problems solved by technology
[0002] In the metallurgical industry, continuous casting machines are needed. Due to the relatively long rolls, there will be a certain curvature of the shaft when it rotates. In the past, ordinary cylindrical roller bearings can only withstand a deflection error of 2.5′, so that the long axis lies in the normal bearing. It is easy to damage the inner and outer rings of the bearing
And because the long shaft is long, ordinary bearings are set at both ends of the long shaft to support the long shaft. The bearing at one end of the long shaft is the positioning end, and the bearing at the other end of the long shaft is the movable end. As the long shaft heats up and expands, the long shaft The movable end of the bearing needs to be able to move freely in the axial direction, but the previous bearings cannot meet the requirements.
Method used
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[0015] Below in conjunction with accompanying drawing, the present invention will be further described:
[0016] As shown in Figures 1 to 6, a roller bearing includes an outer ring 1 and an inner ring 2, the inner ring 2 is arranged inside the outer ring 1, a raceway is formed between the outer wall of the inner ring 2 and the inner wall of the outer ring 1, and the rolling Several cylindrical rollers 3 are arranged in the track. In order to improve the stability of the movement of the cylindrical roller 3, a cage is arranged in the raceway, and each cylindrical roller is arranged on the cage.
[0017] The raceway forms a circle of convex outer surface 21 on the outer surface of the inner ring 2, and the raceway forms a circle of rolling grooves on the inner surface of the outer ring 1, and the bottom surface of the rolling groove is a circle of convex inner surface 11 , The cylindrical roller 3 is located between the outer curved surface 21 and the inner curved surface 11 . ...
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The invention relates to a roller bearing. The roller bearing is characterized in that a circle of outwardly convex inner negative camber is formed on the bottom surface of a rolling groove, and a cylindrical roller is positioned between a positive camber and the negative camber. The roller bearing has the following beneficial effects: the misalignment adaptability is 2-3 times, and the roller bearing can adapt to a long axis, is high in deflection, can bearing different coaxiality and deflection and can meet the demand for thermal expansion displacement of a long-axis free end.
Description
technical field [0001] The invention relates to a roller bearing. Background technique [0002] In the metallurgical industry, continuous casting machines are needed. Due to the relatively long rolls, there will be a certain curvature of the shaft when it rotates. In the past, ordinary cylindrical roller bearings can only withstand a deflection error of 2.5′, so that the long axis lies in the normal bearing. When it is easy to damage the inner and outer rings of the bearing. And because the long shaft is long, ordinary bearings are set at both ends of the long shaft to support the long shaft. The bearing at one end of the long shaft is the positioning end, and the bearing at the other end of the long shaft is the movable end. As the long shaft heats up and expands, the long shaft The movable end of the bearing needs to be able to move freely in the axial direction, but the previous bearings cannot meet it. Contents of the invention [0003] Aiming at the problems existin...
Claims
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IPC IPC(8): F16C33/58
CPCF16C33/585F16C2322/12
Inventor 许明超
Owner 新昌县明瑞关节轴承有限公司