CN103470622A - Bearing for large axle load axle box - Google Patents
Bearing for large axle load axle box Download PDFInfo
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- CN103470622A CN103470622A CN201310455388XA CN201310455388A CN103470622A CN 103470622 A CN103470622 A CN 103470622A CN 201310455388X A CN201310455388X A CN 201310455388XA CN 201310455388 A CN201310455388 A CN 201310455388A CN 103470622 A CN103470622 A CN 103470622A
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- bearing
- clutch shaft
- shaft bearing
- outer ring
- ring
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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
The present invention relates to technical field of bearings, be specifically related to large axle weight axial case bearing.
Background technique
Along with applying of railway technology, a large amount of locomotives put into operation, and in locomotive, the quality of each parts directly affects the performance of locomotive.Axle box bearing is one of locomotive key components and parts, and its reliability is related to the safe operation of locomotive.Axle box bearing directly bears the spring weight of locomotive and rail the vertical and horizontal of wheel is impacted, and wants in addition transmitting tractive power and therefore and some additional load of generation, and therefore, the locomotive axle box bearing performance affects overall locomotive performance.Yet the axle box bearing that different automobile types is installed is often different.30 tons of macro-axis heavy-duty machine car motion speed impulsive loads low, that bear are larger, the double-row roller bearing that the employing integral outer ring that existing locomotive axle box bearing has and two inner rings or two outer rings and integral inner ring fit together, the flexibility of revolution of bearing interchangeability, bearing and poor rigidity, bearing hardenability is poor, processing, installation and removal inconvenience.
Summary of the invention
The present invention, for solving the problems of the technologies described above, proposes a kind of simple compactness, is conducive to processing, is convenient to the large axle weight axial case bearing mounted and dismounted.
For reaching above purpose, be achieved through the following technical solutions:
Large axle weight axial case bearing, comprise: the clutch shaft bearing assembly formed by clutch shaft bearing inner ring, clutch shaft bearing outer ring, the first retainer and first row rolling element and the second bearing unit formed by the second bearing inner race, the second bearing outer ring, the second retainer, secondary series rolling element and loose rib, and the clutch shaft bearing assembly is identical with the second bearing unit size;
The second bearing unit is enumerated and is assemblied in clutch shaft bearing assembly upper-end surface, i.e. clutch shaft bearing inner ring and the second bearing inner race, clutch shaft bearing outer ring and the second bearing outer ring consistency from top to bottom; The clutch shaft bearing inner ring is non-is processed with the first inner ring rib for axial limiting first row rolling element with the second bearing inner race contact jaw edge;
The second bearing inner race is non-is provided with the loose rib at a band tilt angle, side with clutch shaft bearing inner ring contact jaw;
Clutch shaft bearing inner ring and the second bearing inner race contact jaw are that contraposition assembling side edge is all without rib;
The end face inner radius of clutch shaft bearing inner ring rib is with a tilt angle, is conducive to installation and removal, and the end face that the clutch shaft bearing inner ring rib contact with the first row rolling element is the end face with angle of inclination, improved and lubricated, the raising bearing load carrying capacity;
Clutch shaft bearing outer ring and the second bearing outer ring are contraposition assembling, and clutch shaft bearing outer ring and the second edge, bearing outer ring two ends all are processed with the outer ring flange that is respectively used to axial limiting first row rolling element and secondary series rolling element;
The contraposition assembled end place of clutch shaft bearing outer ring and the second bearing outer ring is an oblique angle, and the end face that the clutch shaft bearing outer ring flange contacts with the first row rolling element is the end face with angle of inclination, and the end face that the second bearing outer ring rib contacts with the secondary series rolling element is the end face with angle of inclination, improved and lubricated, improved bearing load carrying capacity;
Clutch shaft bearing assembly and the second bearing unit non-contact end are respectively arranged with for sealing between clutch shaft bearing inner ring and clutch shaft bearing outer ring the first seal closure of producing gap and for sealing second seal closure in generation gap between the second bearing inner race and the second bearing outer ring;
Also comprise, be assemblied in the inner sleeve of clutch shaft bearing inner ring and the second bearing inner race inwall; Be assemblied in the outer sleeve of clutch shaft bearing outer ring and the second bearing outer ring outer wall, be mainly used in auxiliary assembling;
Adopt the present invention of technique scheme to realize the complete contraposition assembling of clutch shaft bearing assembly and the second bearing unit by the auxiliary assembling of inner sleeve and outer sleeve, by clutch shaft bearing inner ring and the second bearing inner race technique are improved and are made the bearing integral compact structure, and facilitate bearing removal by loose rib and the second bearing inner race assembling form, and adopt biserial split roller bearing to be conducive to improve the rigidity of bearing, the load of improving two row bearings distributes, thereby improves the bearing capacity of bearing.
Avoided employing integral outer ring, the adverse effect that the distribution of bearing load is produced.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of specification, and for above and other purpose of the present invention, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and the cooperation accompanying drawing, be described in detail as follows.
The accompanying drawing explanation
The present invention is totally 1 width accompanying drawing, wherein:
Fig. 1 is cross-sectional view of the present invention.
In figure: 1, clutch shaft bearing inner ring, 2, the clutch shaft bearing outer ring, the 3, first retainer, 4, first row rolling element, the 5, second bearing inner race, the 6, second bearing outer ring, 7, the second retainer, 8, the secondary series rolling element, 9, loose rib, 10, the first inner ring rib, 11, outer ring flange, the 12, first seal closure, the 13, second seal closure, 14, inner sleeve, 15, outer sleeve.
Embodiment
Large axle weight axial case bearing as shown in Figure 1, comprise: the clutch shaft bearing assembly formed by clutch shaft bearing inner ring 1, clutch shaft bearing outer ring 2, the first retainer 3 and first row rolling element 4 and the second bearing unit formed by the second bearing inner race 5, the second bearing outer ring 6, the second retainer 7, secondary series rolling element 8 and loose rib 9, and the clutch shaft bearing assembly is identical with the second bearing unit size;
The second bearing unit is enumerated and is assemblied in clutch shaft bearing assembly upper-end surface, i.e. clutch shaft bearing inner ring 1 and the second bearing inner race 5, clutch shaft bearing outer ring 2 and the second bearing outer ring 6 consistencies from top to bottom; Clutch shaft bearing inner ring 1 is non-is processed with the first inner ring rib 10 for axial limiting first row rolling element 4 with the second bearing inner race 5 contact jaw edges;
The second bearing inner race 5 is non-is provided with the loose rib 9 at a band tilt angle, side with clutch shaft bearing inner ring 1 contact jaw, and loose rib 9 is placed directly in the end of the second bearing inner race 5, and with axle be transition fit, and cold pressing and be arranged on axle;
Clutch shaft bearing inner ring 1 and the second bearing inner race 5 contact jaws are that contraposition assembling side edge is all without rib;
The end face inner radius of clutch shaft bearing inner ring 1 rib is with a tilt angle, is conducive to installation and removal, and the end face that clutch shaft bearing inner ring 1 rib contact with first row rolling element 4 is the end face with angle of inclination, improved and lubricated, the raising bearing load carrying capacity;
Clutch shaft bearing outer ring 2 and the second bearing outer ring 6 are the contraposition assembling, and clutch shaft bearing outer ring 2 and the second bearing outer ring 6 edges, two ends all are processed with the outer ring flange 11 that is respectively used to axial limiting first row rolling element 4 and secondary series rolling element 8;
The contraposition assembled end place of clutch shaft bearing outer ring 2 and the second bearing outer ring 6 is an oblique angle, and the end face that clutch shaft bearing outer ring 2 ribs contact with first row rolling element 4 is the end face with angle of inclination, and the end face that the second bearing outer ring 6 ribs contact with secondary series rolling element 8 is the end face with angle of inclination, improved and lubricated, improved bearing load carrying capacity;
Clutch shaft bearing assembly and the second bearing unit non-contact end are respectively arranged with for sealing between clutch shaft bearing inner ring 1 and clutch shaft bearing outer ring 2 the first seal closure 12 of producing gap and for sealing second seal closure 13 in generation gap between the second bearing inner race 5 and the second bearing outer ring 6;
The side that loose rib 9 contacts with the second bearing inner race 5 is with little tilt angle, and making loose rib 9 is not to contact fully with the second bearing inner race 5, is conducive to improve bearing lubrication, improves bearing life;
Also comprise, be assemblied in the inner sleeve 14 of clutch shaft bearing inner ring 1 and the second bearing inner race 5 inwalls; Be assemblied in the outer sleeve 15 of clutch shaft bearing outer ring 2 and the second bearing outer ring 6 outer walls, be mainly used in auxiliary assembling;
The large axle weight axial case bearing assemble method of application inner sleeve 14 and outer sleeve 15:
Step 1, at first clutch shaft bearing assembly and the second bearing unit are assembled respectively, and the second bearing outer ring 6 is fitted fully with clutch shaft bearing outer ring 2, the second bearing inner race 5 and clutch shaft bearing inner ring 1 are fitted fully, and loose rib 9 one side end faces and the second bearing inner race 5 are non-contacts end face with clutch shaft bearing inner ring 1 and fit fully;
Step 2, by inner sleeve 14 and outer sleeve 15 by press fit to the internal diameter of clutch shaft bearing inner ring 1, on the internal diameter of the second bearing inner race 5 and on loose rib 9 internal diameters, and clutch shaft bearing inner ring 1 and the second bearing inner race 5 are interference fit with inner sleeve 14, clutch shaft bearing outer ring 2 and the second bearing outer ring 6 are interference fit with outer sleeve 15, loose rib 9 is Spielpassung with outer sleeve 15, and outer sleeve 15 is positioned over the intermediate portion of clutch shaft bearing outer ring 2 and the second bearing outer ring 6; Inner sleeve 14 is positioned over neutral position from clutch shaft bearing inner ring 1 axial width to loose rib 9 ends;
Step 3, with the axle assembling, the method for installing by colding pressing and axle assembling, in installation process, squeeze out inner sleeve 14 and outer sleeve 15.
Adopt the present invention of technique scheme to realize the complete contraposition assembling of clutch shaft bearing assembly and the second bearing unit by inner sleeve 14 and the auxiliary assembling of outer sleeve 15, by clutch shaft bearing inner ring 1 and the second bearing inner race 5 techniques are improved and are made the bearing integral compact structure, and facilitate bearing removal by loose rib 9 and the second bearing inner race 5 assembling forms, and adopt biserial split roller bearing to be conducive to improve the rigidity of bearing, the load of improving two row bearings distributes, thereby improves the bearing capacity of bearing.
Avoided employing integral outer ring, the adverse effect that the distribution of bearing load is produced.
The above, it is only preferred embodiment of the present invention, not the present invention is done to any pro forma restriction, although the present invention discloses as above with preferred embodiment, yet not in order to limit the present invention, any those skilled in the art are not within breaking away from the technical solution of the present invention scope, appeal when utilizing the equivalent embodiment that the technology contents disclosed is made a little change or is modified to equivalent variations, in every case be the content that does not break away from technical solution of the present invention, foundation technical spirit of the present invention is to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (3)
1. large axle weight axial case bearing, it is characterized in that: comprise, the clutch shaft bearing assembly formed by clutch shaft bearing inner ring (1), clutch shaft bearing outer ring (2), the first retainer (3) and first row rolling element (4) and the second bearing unit formed by the second bearing inner race (5), the second bearing outer ring (6), the second retainer (7), secondary series rolling element (8) and loose rib (9), and the clutch shaft bearing assembly is identical with the second bearing unit size;
Described the second bearing unit is enumerated and is assemblied in clutch shaft bearing assembly upper-end surface, i.e. clutch shaft bearing inner ring (1) and the second bearing inner race (5), clutch shaft bearing outer ring (2) and the second bearing outer ring (6) consistency from top to bottom; Described clutch shaft bearing inner ring (1) is non-is processed with the first inner ring rib (10) for axial limiting first row rolling element (4) with the second bearing inner race (5) contact jaw edge;
Described the second bearing inner race (5) is non-is provided with loose rib (9) with clutch shaft bearing inner ring (1) contact jaw, and loose rib (9) is placed directly in the end of the second bearing inner race (5), and with axle be transition fit, and cold pressing and be arranged on axle;
Described clutch shaft bearing inner ring (1) is that contraposition assembling side edge is all without rib with the second bearing inner race (5) contact jaw;
The end face inner radius of described clutch shaft bearing inner ring (1) rib is with a tilt angle, and the end face that clutch shaft bearing inner ring (1) rib contacts with first row rolling element (4) is the end face with angle of inclination;
Described clutch shaft bearing outer ring (2) and the second bearing outer ring (6) assemble for contraposition, and clutch shaft bearing outer ring (2) and the second bearing outer ring (6) edge, two ends all are processed with the outer ring flange (11) that is respectively used to axial limiting first row rolling element (4) and secondary series rolling element (8);
Described clutch shaft bearing outer ring (2) is an oblique angle with the contraposition assembled end place of the second bearing outer ring (6), and the end face that clutch shaft bearing outer ring (2) rib contacts with first row rolling element (4) is the end face with angle of inclination, and the end face that the second bearing outer ring (6) rib contacts with secondary series rolling element (8) is the end face with angle of inclination;
Described clutch shaft bearing assembly and the second bearing unit non-contact end are respectively arranged with for sealing between clutch shaft bearing inner ring (1) and clutch shaft bearing outer ring (2) the first seal closure (12) of producing gap and for sealing second seal closure (13) in generation gap between the second bearing inner race (5) and the second bearing outer ring (6);
The side that described loose rib (9) contacts with the second bearing inner race (5) is with little tilt angle, and making loose rib (9) is not to contact fully with the second bearing inner race (5).
2. large axle weight axial case bearing according to claim 1, is characterized in that: also comprise, be assemblied in the inner sleeve (14) of clutch shaft bearing inner ring (1) and the second bearing inner race (5) inwall; Be assemblied in the outer sleeve (15) of clutch shaft bearing outer ring (2) and the second bearing outer ring (6) outer wall.
3. an application rights requires the large axle weight axial case bearing assemble method of inner sleeve and outer sleeve in 2:
Step 1, at first clutch shaft bearing assembly and the second bearing unit are assembled respectively, and the second bearing outer ring (6) is fitted fully with clutch shaft bearing outer ring (2), the second bearing inner race (5) and clutch shaft bearing inner ring (1) are fitted fully, and loose rib (9) one side end faces and the second bearing inner race (5) are non-contacts end face with clutch shaft bearing inner ring (1) and fit fully;
Step 2, by inner sleeve (14) and outer sleeve (15), by press fit, arrive on the internal diameter of clutch shaft bearing inner ring (1), on the internal diameter of the second bearing inner race (5) and on loose rib (9) internal diameter, and clutch shaft bearing inner ring (1) and the second bearing inner race (5) are interference fit with inner sleeve (14), clutch shaft bearing outer ring (2) and the second bearing outer ring (6) are interference fit with outer sleeve (15), loose rib (9) is Spielpassung with outer sleeve (15), and outer sleeve (15) is positioned over the intermediate portion of clutch shaft bearing outer ring (2) and the second bearing outer ring (6), inner sleeve (14) is positioned over neutral position from clutch shaft bearing inner ring (1) axial width to loose rib (9) end,
Step 3, with the axle assembling, the method for installing by colding pressing and axle assembling, in installation process, squeeze out inner sleeve (14) and outer sleeve (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310455388.XA CN103470622B (en) | 2013-09-29 | 2013-09-29 | Large axle weight axial case bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310455388.XA CN103470622B (en) | 2013-09-29 | 2013-09-29 | Large axle weight axial case bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103470622A true CN103470622A (en) | 2013-12-25 |
| CN103470622B CN103470622B (en) | 2015-12-09 |
Family
ID=49795611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310455388.XA Active CN103470622B (en) | 2013-09-29 | 2013-09-29 | Large axle weight axial case bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103470622B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105317851A (en) * | 2015-12-08 | 2016-02-10 | 中车大连机车研究所有限公司 | Axle box bearing used for locomotive |
| CN105370728A (en) * | 2015-12-08 | 2016-03-02 | 中车大连机车研究所有限公司 | Bearing for locomotive driving device |
| WO2022247361A1 (en) * | 2021-05-27 | 2022-12-01 | 李丹 | New-type pulley bearing and mounting method therefor, pulley component, and pulley assembly |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2185076B (en) * | 1985-12-19 | 1990-05-30 | Skf Gmbh | Sealed rolling bearing |
| JPH0988977A (en) * | 1995-09-28 | 1997-03-31 | Ntn Corp | Double-row cylindrical roller bearing |
| CN201651041U (en) * | 2010-05-02 | 2010-11-24 | 瓦房店光阳轴承集团有限公司 | Enhanced type sealing four-column cylindrical roller bearing for rolling mill |
| CN201747789U (en) * | 2010-08-24 | 2011-02-16 | 瓦房店正达冶金轧机轴承有限公司 | Improved four-line cylindrical roller bearing |
| CN102454696A (en) * | 2010-10-22 | 2012-05-16 | 瓦房店正达冶金轧机轴承有限公司 | Long-lived double row full complemented long cylindrical roller cutting sleeve bearing |
| CN203560289U (en) * | 2013-09-29 | 2014-04-23 | 中国北车集团大连机车研究所有限公司 | Bearing for large axle heavy axle box |
-
2013
- 2013-09-29 CN CN201310455388.XA patent/CN103470622B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2185076B (en) * | 1985-12-19 | 1990-05-30 | Skf Gmbh | Sealed rolling bearing |
| JPH0988977A (en) * | 1995-09-28 | 1997-03-31 | Ntn Corp | Double-row cylindrical roller bearing |
| CN201651041U (en) * | 2010-05-02 | 2010-11-24 | 瓦房店光阳轴承集团有限公司 | Enhanced type sealing four-column cylindrical roller bearing for rolling mill |
| CN201747789U (en) * | 2010-08-24 | 2011-02-16 | 瓦房店正达冶金轧机轴承有限公司 | Improved four-line cylindrical roller bearing |
| CN102454696A (en) * | 2010-10-22 | 2012-05-16 | 瓦房店正达冶金轧机轴承有限公司 | Long-lived double row full complemented long cylindrical roller cutting sleeve bearing |
| CN203560289U (en) * | 2013-09-29 | 2014-04-23 | 中国北车集团大连机车研究所有限公司 | Bearing for large axle heavy axle box |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105317851A (en) * | 2015-12-08 | 2016-02-10 | 中车大连机车研究所有限公司 | Axle box bearing used for locomotive |
| CN105370728A (en) * | 2015-12-08 | 2016-03-02 | 中车大连机车研究所有限公司 | Bearing for locomotive driving device |
| WO2022247361A1 (en) * | 2021-05-27 | 2022-12-01 | 李丹 | New-type pulley bearing and mounting method therefor, pulley component, and pulley assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103470622B (en) | 2015-12-09 |
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| CP01 | Change in the name or title of a patent holder |
Address after: 116021 Shahekou, Liaoning, China No. 49 The Strip Patentee after: CRRC DALIAN INSTITUTE CO., LTD. Address before: 116021 Shahekou, Liaoning, China No. 49 The Strip Patentee before: CNR Dalian Locomotive Research Institute Co., Ltd. |