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hollow roller bearing

A roller bearing, hollow technology, applied in the field of bearings, can solve the problems of bearing damage, easy welding, loosening, etc., to achieve the effect of convenient installation, avoid easy welding, and improve service life

Active Publication Date: 2018-09-07
WAFANGDIAN METALLURGICAL BEARING GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cylindrical, tapered and spherical roller bearings currently used all use a pillar with the same diameter to pass through one end of the roller, and the cage cover is threaded, and the other end is welded together with another cage cover. Design, in large-scale machinery and equipment with intense vibration, the welding place is easy to open, loosen and break, and the early abnormal damage of the bearing appears.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Embodiment one, with reference to the attached figure 1 , a hollow roller bearing, including a bearing inner ring 1 and a bearing outer ring 7, and a plurality of pairs of tapered rollers 6 are evenly distributed and symmetrically arranged between the bearing inner ring 1 and the bearing outer ring 7, and the tapered rollers 6 move freely Installed on the pillar 4, the thread one 2 at the outer end of the pillar 4 is threadedly connected with the small end cover 5 of the cage. 9 is threadedly connected with the large end cap 8 of the cage, the diameter Φ1 of the first thread is greater than the diameter Φ2 of the second thread, and its value is 1mm~20mm.

[0011] The center of the bearing inner ring 1 is provided with a shaft hole 10 for connecting with the shaft in the equipment.

[0012] When installing, insert the second thread diameter Φ2 of the pillar 4 from the first thread diameter Φ1, and weld the small end cover 5 of the cage with the pillar 4 through the weld...

Embodiment 2

[0013] Embodiment two, referring to the attached figure 2 , the main technical features are exactly the same as those in Embodiment 1, except that the shapes of bearing inner ring 1 and bearing outer ring 7 are slightly different; only one cylindrical roller 12 is mounted on pillar 4, and cage end cover 2 11 is equivalent to the cage in Embodiment 1 The small end cap 5 and the cage end cap one 13 are equivalent to the cage big end cap 8 in the first embodiment; other structural features are the same.

[0014] When installing, insert the second thread diameter Φ2 of the pillar 4 from the first thread diameter Φ1, and after screwing the thread, weld the cage end cover 2 11 and the pillar 4 together through the welding spot 3.

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Abstract

The invention belongs to a hollow roller bearing. The hollow roller bearing comprises a bearing inner ring (1) and a bearing outer ring (7), a plurality of pairs of tapered rollers (6) are uniformly and symmetrically arranged between the bearing inner ring (1) and the bearing outer ring (7), the tapered rollers (6) are movably arranged on pillars (4), threads 1 (2) at the outer ends of the pillars (4) are in threaded connection with small holding rack end caps (5), and the small holding rack end caps (5) are fixed to the pillars (4) through welding spots (3); and threads 2 (9) at the inner ends of the pillars (4) are in threaded connection with large holding rack end caps (8), and the diameter (phi 1) of the threads 1 is greater than the diameter (phi 2) of the threads 2 and is 1-20 mm. The hollow roller bearing has the advantages of avoiding of easy abnormal damages of bearings due to easy open welding, loosening and fracturing of welding points, service life prolongation, convenience in installation, and strong bearing and anti-vibration ability.

Description

technical field [0001] The invention belongs to bearings, in particular to a hollow roller bearing used in large machinery. Background technique [0002] Bearing is one of the important parts in machinery. Its technical performance plays a vital role in the performance of machinery and the length of service life. Different machines have different requirements for bearing technology. At present, the bearing capacity of large machinery is required to be higher and higher, because it is related to the service life. The cylindrical, tapered and spherical roller bearings currently used all use a pillar with the same diameter to pass through one end of the roller, and the cage cover is threaded, and the other end is welded together with another cage cover. Design, in large-scale machinery and equipment with intense vibration, the welding place is easy to open, loosen and break, and the early abnormal damage of the bearing appears. Contents of the invention [0003] The object...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C19/38F16C19/36
CPCF16C19/361F16C19/386
Inventor 刘伟齐刘国雨
Owner WAFANGDIAN METALLURGICAL BEARING GRP CO LTD
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