Bearing for large axle load axle box

A large axle load and axle box technology, applied in the direction of shafts and bearings, bearings, bearing components, etc., can solve the problem of bearing interchangeability, poor rotation flexibility and rigidity of bearings, inconvenient processing, installation and disassembly, and poor hardenability of bearings and other problems, to achieve the effect of improving load distribution, increasing stiffness, and improving bearing capacity

Active Publication Date: 2013-12-25
CRRC DALIAN INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The locomotive with a large axle load of 30 tons runs at a low speed and bears a large impact load. Some existing locomotive axle box bearings use double-row rollers assembled with an integral outer ring and two inner rings or two outer rings and an integral inner ring. Bearings, bearing interchangeability, poor rotation flexibility and rigidity of bearings, poor hardenability of bearings, inconvenient processing, installation and disassembly

Method used

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  • Bearing for large axle load axle box

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Embodiment Construction

[0020] Such as figure 1 The shown bearing for axle box with large axle load includes: the first bearing assembly composed of the first bearing inner ring 1, the first bearing outer ring 2, the first cage 3 and the first row of rolling elements 4 and the second The second bearing assembly composed of the bearing inner ring 5, the second bearing outer ring 6, the second cage 7, the second row of rolling elements 8 and the flat stop ring 9, and the first bearing assembly and the second bearing assembly have the same size;

[0021] The second bearing assembly is arranged and assembled on the upper end surface of the first bearing assembly, that is, the first bearing inner ring 1 and the second bearing inner ring 5, the first bearing outer ring 2 and the second bearing outer ring 6 are aligned up and down; the first bearing inner ring 1 The edge of the non-contact end of the second bearing inner ring 5 is processed with the first inner ring rib 10 for axially limiting the first row...

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Abstract

The invention discloses a bearing for a large axle load axle box. The bearing comprises a first bearing assembly and a second bearing assembly, wherein the first bearing assembly is composed of a first inner ring, a first bearing outer ring, a first retainer and a first row of rolling bodies, the second bearing assembly is composed of a second bearing inner ring, a second bearing outer ring, a second retainer, a second row of rolling bodies and a flat blocking ring, and the first bearing assembly and the second bearing assembly are completely assembled in a counterpoint mode through the auxiliary assembling between an inner sleeve and an outer sleeve. The process of the first bearing inner ring and the process of the second bearing inner ring are improved, so that the baring is compact in whole structure. Furthermore, the flat blocking ring and the second bearing inner ring are assembled to enable the bearing to be convenient to dismount.

Description

technical field [0001] The invention relates to the technical field of bearings, in particular to a bearing for a heavy axle box. Background technique [0002] With the promotion and application of railway technology, a large number of locomotives have been put into operation, and the quality of each component in the locomotive directly affects the performance of the locomotive. Axle box bearings are one of the key components of locomotives, and their reliability is related to the safe operation of locomotives. The axle box bearing directly bears the sprung weight of the locomotive and the longitudinal and lateral impact of the rail on the wheel. In addition, it also transmits traction and some additional loads generated thereby. Therefore, the performance of the axle box bearing of the locomotive affects the overall performance of the locomotive. However, the axle box bearings installed in different models are often different. The locomotive with a large axle load of 30 t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C19/54F16C33/60F16C43/04
Inventor 周晴张宗峰王元珠申强高卫卫
Owner CRRC DALIAN INST CO LTD
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