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Plug-in type combined retainer for rolling bearing and rolling bearing

A rolling bearing and cage technology, which is applied in the field of plug-in combined cages and rolling bearings for rolling bearings, can solve the problems of prolonged equipment maintenance time, affecting work efficiency, waste of resources, etc., saving time and labor costs, and improving work efficiency. , the effect of short maintenance time

Pending Publication Date: 2022-03-29
CRRC DALIAN INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, during the use of this integral cage, once a bearing rolling element or a section of the cage beam fails or fails, the bearing needs to be completely disassembled. If the equipment shafting is maintained or the gears and other parts are repaired and maintained, it is also necessary Dismantling the bearing (removing the bearing ring), which leads to longer equipment repair and maintenance time, not only wastes resources, but also wastes labor, which affects work efficiency

Method used

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  • Plug-in type combined retainer for rolling bearing and rolling bearing
  • Plug-in type combined retainer for rolling bearing and rolling bearing
  • Plug-in type combined retainer for rolling bearing and rolling bearing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Such as figure 1 , figure 2 As shown, a plug-in combined cage for rolling bearings includes: cage section 1 and mounting ring 2;

[0058] Several cage sections 1 are connected circumferentially, rolling element pockets 10 are formed between the cage sections 1, and each cage section 1 includes a mounting structure 11 and a connecting structure 12, the mounting structure The installation ring 2 is placed inside 11;

[0059] The connecting structure 12 includes a first connecting portion 121 and a second connecting portion 122, the cage section 1 includes at least one side beam 13, and the first connecting portion 121 and the second connecting portion 122 are respectively arranged on the The two ends of the side beam 13, the first connecting part 121 includes at least one curved surface or two non-coplanar planes, the second connecting part 122 is adapted to the shape of the first connecting part 121, and the adjacent two The two side beams 13 are matedly connected by ...

Embodiment 2

[0080] Such as Figure 6 As shown, the difference between this embodiment and Embodiment 1 is that the first connecting part 121 includes a first curved surface 1207 and a second curved surface 1208, the second curved surface 1208 is closer to the center of the bearing circle than the first curved surface 1207, and the Both the first curved surface 1207 and the second curved surface 1208 are concentric with the bearing;

[0081] An abutting surface 1209 is provided between the first curved surface 1207 and the second curved surface 1208 , and the abutting surface 1209 abuts against the second connecting portion 122 .

[0082] Both the first curved surface 1207 and the second curved surface 1208 are part of the concentric cylindrical surface of the cage, the abutment surface 1209 bears the circumferential force, and the first curved surface 1207 and the second curved surface 1208 bear the radial force to ensure that the bearing rotates at high speed , The stability of the cage...

Embodiment 3

[0084] This embodiment discloses a rolling bearing, such as Figure 15 As shown, it includes an inner ring, an outer ring and rolling elements, and also includes the plug-in combined cage for rolling bearings described in Embodiment 1 or Embodiment 2.

[0085] Check the strength of the existing standard bearings and the cylindrical roller bearings of the application examples 1 and 2, apply the same kind of public adjustment, check the maximum stress of the designed plug-in combination cage and the conventional cage, according to the rolling element The impact load was obtained by FEM analysis, and the safety factor of the fatigue strength of the material was calculated. Such as Figure 16 As shown in the template for FEM analysis, the rolling element impact load 4 (F=m×α×9.8) is applied to the side beam of the cage or the elastic baffle, and the constraint 3 is applied for FEM analysis.

[0086] Computational input adjustments are shown in Table 1.

[0087] Table 1 Calculat...

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Abstract

The invention provides a plug-in type combined retainer for a rolling bearing and a bearing, a plurality of retainer sections are circumferentially connected, each retainer section comprises a mounting structure and a connecting structure, and a mounting ring is arranged in each mounting structure; the connecting structure comprises a first connecting part and a second connecting part, the first connecting part and the second connecting part are arranged at the two ends of the edge beam respectively, the first connecting part at least comprises a curved surface or two non-coplanar planes, and the second connecting part is matched with the first connecting part in shape. Every two adjacent edge beams are connected in a matched mode through the corresponding first connecting part and the corresponding second connecting part. The invention discloses a plug-in type combined retainer for a rolling bearing and the rolling bearing, a plurality of retainer sections are adopted to form the retainer, the retainer sections are connected through mounting rings, and connecting parts are arranged among the retainer sections to prevent slippage. When any retainer section is damaged, the retainer section can be independently replaced, the operation is simple, the maintenance time is short, the time and the labor cost are saved, and the working efficiency is improved.

Description

technical field [0001] The invention relates to the field of rolling bearings, in particular to a plug-in combined cage for rolling bearings and rolling bearings. Background technique [0002] The cage is an important part used to separate the rolling elements in the bearing, such as Figure 20 As shown, the cage in the prior art is composed of an end face 101 extending continuously in the circumferential direction and a plurality of beams 102 extending axially between the two end faces 101, and between the two end faces 101 and A storage hole 103 for storing rolling elements of the rolling bearing is formed in a space surrounded by the plurality of beams 102 . [0003] However, during the use of this integral cage, once a bearing rolling element or a section of the cage beam fails or fails, the bearing needs to be completely disassembled. If the equipment shafting is maintained or the gears and other parts are repaired and maintained, it is also necessary Dismantling the b...

Claims

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Application Information

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IPC IPC(8): F16C33/50F16C33/49
CPCF16C33/50F16C33/49
Inventor 钟祥鸣申强闻俊夫
Owner CRRC DALIAN INST CO LTD