CN102410309A - End-axle box bearing - Google Patents
End-axle box bearing Download PDFInfo
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- CN102410309A CN102410309A CN2010102905166A CN201010290516A CN102410309A CN 102410309 A CN102410309 A CN 102410309A CN 2010102905166 A CN2010102905166 A CN 2010102905166A CN 201010290516 A CN201010290516 A CN 201010290516A CN 102410309 A CN102410309 A CN 102410309A
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- bearing
- cover
- inner sleeve
- clutch shaft
- ring
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Abstract
The invention discloses an end-axle box bearing which comprises a bearing sleeve, wherein a first inner bearing sleeve and a second inner bearing sleeve are arranged in the bearing sleeve; the first and second inner bearing sleeves are butted; clearances are arranged between the bearing sleeve and the first inner bearing sleeve as well as between the bearing sleeve and the second inner bearing sleeve; a plurality of rolling elements are respectively arranged between the bearing sleeve and the first inner bearing sleeve as well as between the bearing sleeve and the second inner bearing sleeve; one side of each rolling element is arranged in a movable slot on an inner wall of the bearing sleeve; the other side of each rolling element is in contact with the first or second inner bearing sleeve; a first retainer ring and a second retainer ring are respectively arranged at two ends of the butted first and second inner bearing sleeves; and the first retainer ring and the second retainer ring are butted with the rolling elements. The end-axle box bearing provided by the invention has the advantages of simple structure, convenience in realization, being applicable to a locomotive and convenience in the assembling of the bearing and the reliable running of the bearing.
Description
Technical field
The present invention relates to bearing technology, relate in particular to a kind of end axle axle box bearing.
Background technique
Along with applying of railway technology, a large amount of locomotives put into operation, and in the locomotive high speed operation, each parts in the locomotive bear various power, and the quality of each parts directly affects the performance of locomotive in the locomotive.Wherein, the bearing in the locomotive is the critical component in the locomotive high speed operation, and it mainly is used for connecting each transmission shaft in the locomotive, need bear the impact of various power, and therefore, the bearing performance of locomotive has bigger influence to overall locomotive performance.
At present; The end axle axle box bearing of locomotive generally adopts two cover single row roller bearings of packing, promptly in the locomotive manufacture process, two cover single row roller bearings is assembled into required position; Constitute the required bearing of connecting end axle, end axle to be connected is installed and located.In the mode of two cover single row roller bearings of this employing packing, during use, need the bearing of each packing be cleaned, series of processes such as fat liquoring, check, coupling, assembling; And it is not in place in being assembled into the locomotive process, to occur assembling easily; The perhaps relatively poor problem of assembling back two cover roller bearing degree of adaptability, thus make that in the locomotive work, the power ability to bear of bearing is relatively poor; Damage of bearings can occur or move phenomenons such as bad, influence the overall performance of locomotive.
To sum up; When the end axle axle box bearing of existing locomotive adopts two cover single row roller bearings of packing, in the locomotive manufacture process, need overlap series of processes such as bearings clean, fat liquoring, check, coupling, assembling, bearing pack process of assembling complicacy to two; And it is not in place to occur assembling easily; Make that the bearing ability to bear is relatively poor, cause bearing performance relatively poor, thereby influence the high speed operation performance of whole locomotive.
Summary of the invention
The present invention provides a kind of end axle axle box bearing, can solve effectively that existing bearing pack process of assembling is complicated, assembling is not in place and causes the relatively poor problem of bearing performance, improves the convenience of bearing assembling, improves the power ability to bear of bearing.
The present invention provides a kind of end axle axle box bearing, comprising:
Bearing outside is provided with the cover and second bearing inner sleeve in the clutch shaft bearing in the said bearing outside, the cover and second bearing inner sleeve butt joint in the said clutch shaft bearing, and have the gap between cover, second bearing inner sleeve in said bearing outside and the said clutch shaft bearing;
Be respectively arranged with a plurality of rolling elements between cover, second bearing inner sleeve and the said bearing outside in the said clutch shaft bearing; One side of said rolling element is arranged in the loose slot on the inwall of said bearing outside, and the cover or second bearing inner sleeve contact in the opposite side of said rolling element and the said clutch shaft bearing;
The cover and the two ends of second bearing inner sleeve are respectively arranged with first back-up ring and second back-up ring in the said clutch shaft bearing of butt joint, and said first back-up ring and second back-up ring dock with rolling element.
In the above-mentioned end axle axle box bearing, all can be provided with retainer between cover and second bearing inner sleeve and the said bearing outside in the said clutch shaft bearing, said rolling element is arranged in the through hole of said retainer.And said retainer can be the plastic-steel retainer.
In the above-mentioned end axle axle box bearing, said rolling element is for adopting the rolling element of logarithm shape.
In the above-mentioned end axle axle box bearing, said bearing outside two ends are respectively arranged with dust-proof cover, adopt non-contact to be tightly connected between said dust-proof cover and said first back-up ring, second back-up ring.
In the above-mentioned end axle axle box bearing, cover is formed in one in said first back-up ring and the said clutch shaft bearing; And/or said second back-up ring and said second bearing inner sleeve are formed in one.
End axle axle box bearing provided by the invention; Integrally formed through bearing outside and two bearing inner sleeves; Can directly be installed in use on the end axle axle box of car body; Defectives such as the packaging technology that can effectively avoid in the existing technology causing when adopting the assembling of two row roller bearings is complicated, assembling is not in place can effectively improve the service behaviour of bearing, improve the bearing ability to bear; Simultaneously, the bearing that this is integrally formed can be convenient to the transportation and the packing of bearing, avoids adopting the interim assembling of existing two row bearings to cause bearing transportation and packing complicated, and easily because of assembly defect causes the pairing mistake, the problem that the bearing that causes assembling can't use; In addition, this bearing has lighter weight and smaller volume, can effectively improve the stability and the reliability of bearing operation, improves the working life of bearing.
Description of drawings
Fig. 1 is end axle axle box bearing embodiment's of the present invention axial sectional view;
Fig. 2 is end axle axle box bearing embodiment's of the present invention radial cross-section.
Reference character:
The 1-bearing outside; Cover in the 21-clutch shaft bearing; 22-second bearing inner sleeve;
The 3-rolling element; The 11-loose slot; 41-first back-up ring;
42-second back-up ring; The 5-retainer; 61-first dust-proof cover;
62-second dust-proof cover.
Embodiment
For the purpose, technological scheme and the advantage that make the embodiment of the invention clearer; To combine the accompanying drawing in the embodiment of the invention below; Technological scheme in the embodiment of the invention is carried out clear, intactly description; Obviously, described embodiment is the present invention's part embodiment, rather than whole embodiments.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment who is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Fig. 1 is end axle axle box bearing embodiment's of the present invention axial sectional view; Fig. 2 is end axle axle box bearing embodiment's of the present invention radial cross-section.As depicted in figs. 1 and 2; The present embodiment bearing comprises bearing outside 1; Be provided with cover 21 and second bearing inner sleeve 22 in the clutch shaft bearing in this bearing outside 1; Cover 21 and second bearing inner sleeve 22 butt joints in this clutch shaft bearing, promptly the inner of cover 21 and second bearing inner sleeve 22 is docking together in the clutch shaft bearing, and has the gap between cover 21, second bearing inner sleeve 22 in bearing outside 1 and the clutch shaft bearing; Be respectively arranged with a plurality of rolling elements 3 between cover 21, second bearing inner sleeve 22 and the bearing outside 1 in the clutch shaft bearing; Be cover 21 and bearing outside 1 in the clutch shaft bearing; And second all form single row bearing between bearing inner sleeve 22 and the bearing outside 1; One side of rolling element 3 is arranged in the loose slot 11 on the inwall of bearing outside 1; The opposite side of rolling element 3 contacts with the interior cover of clutch shaft bearing 21 or second bearing inner sleeve 22, makes the interior cover of clutch shaft bearing 21 and second bearing inner sleeve 22 under the effect of rolling element 3, to rotate with respect to bearing outside 1; In addition; The two ends of cover 21 and second bearing inner sleeve 22 in the clutch shaft bearing of butt joint, the outer end of promptly overlapping 21 and second bearing inner sleeve 22 in the clutch shaft bearing can be respectively arranged with first back-up ring 41 and second back-up ring 42, and first back-up ring 41 and second back-up ring 42 dock with rolling element 3; Make win very close to each other between back-up ring 41 and second back-up ring 42 and the adjacent rolling element 3; When 21 and second bearing inner sleeve 22 of cover in the clutch shaft bearing rotates, can not produce axial motion, guarantee the rotating effect of the end axle of connection.
The end axle axle box bearing of present embodiment can be directly installed in the end axle axle box of locomotive; And can the end axle be located in the interior cover of clutch shaft bearing 21 and second bearing inner sleeve 22; And equal interference fit between cover 21, second bearing inner sleeve 22 in end axle and the clutch shaft bearing is rotated so that the end axle can overlap 21 and second bearing inner sleeve 22 in clutch shaft bearing.In end axle movement process, can rely on the interior cover of clutch shaft bearing 21 and second bearing inner sleeve 22 to bear the radial force that the end axle transmits, and be delivered on the bearing outside through rolling element 3.
The end axle cod of present embodiment is integrally formed through bearing outside and two bearing inner sleeves; Can directly be installed in use on the end axle axle box of car body; Defectives such as the packaging technology that can effectively avoid in the existing technology causing when adopting the assembling of two row roller bearings is complicated, assembling is not in place; Can effectively improve the service behaviour of bearing, improve the bearing ability to bear; Simultaneously, the bearing that this is integrally formed can be convenient to the transportation and the packing of bearing, avoids adopting the interim assembling of existing two row bearings to cause bearing transportation and packing complicated, and easily because of assembly defect causes the pairing mistake, the problem that the bearing that causes assembling can't use; In addition, this bearing has lighter weight and smaller volume, can effectively improve the stability and the reliability of bearing operation, improves the working life of bearing.
In the present embodiment; Can be respectively arranged with retainer 5 between cover 21, second bearing inner sleeve 22 and the bearing outside 1 in the clutch shaft bearing; Rolling element 3 is arranged in the through hole of retainer 5; Thereby utilize this retainer 5 can be effectively the position of rolling element 3 to be limited, thereby improve the ability of cover 21 and second bearing inner sleeve 22 bearing radial forces in the clutch shaft bearing.Particularly, as shown in Figure 1, can be provided with several through holes on this retainer 5; All can be provided with rolling element 3 in each through hole, and the side that each rolling element 3 contacts with bearing outside 1 all is arranged on the loose slot 11 of bearing outside 1; Opposite side contacts with the interior cover of clutch shaft bearing 21 or second bearing inner sleeve 22; Like this, in the bearing working process, cover 21 and second bearing inner sleeve 22 will rotate with its end axle that is fixed together in the clutch shaft bearing; Rolling element 3 will rotate in this retainer 5 and loose slot 11, can effectively guarantee to hold the rotating effect of axle.
In the present embodiment, above-mentioned retainer 5 specifically can be the plastic-steel retainer, particularly; The basic material of this plastic-steel retainer is a Nylon, and adds glass fibre therein, can make the intensity of Nylon strengthen greatly; Can be suitable with copper material retainer intensity, satisfy the effect of back-up roller kinetoplast.In addition, when adopting the plastic-steel retainer, even under the situation of unlubricated fat; Behind the bearing generation high temperature; Nylon can melt the effect of playing lubricant grease, can effectively guarantee to hold an axle axle box bearing can stablize, move reliably certain distance, has greatly improved the reliability that the end axle bearing uses.
In the present embodiment, above-mentioned rolling element 3 adopts the rolling element of logarithm shape.Because the existing modified line that adopts is mostly repaiied the rolling element of type bus; The end face of rolling element exists stress to concentrate, and can not eliminate for unbalance loading, therefore; The present embodiment rolling element is through adopting logarithm shape; Can eliminate the stress of rolling element end face greatly and concentrate, the unbalance loading phenomenon of two row rolling elements improves the reliability and stability that end axle axle box bearing uses in the adjustment end axle axle box bearing.
In the present embodiment; The two ends of bearing outside 1 can be respectively arranged with first dust-proof cover 61 and second dust-proof cover 62, and between this first dust-proof cover 61 and first back-up ring 41, and all adopt non-contact to be tightly connected between second dust-proof cover 62 and second back-up ring 42; Thereby can guarantee effectively that cover 21 and second bearing inner sleeve 22 can rotate freely in the clutch shaft bearing; And can effectively avoid foreign matter, or the lubricant oil that is provided with on the rolling element 3 runs out of, improved the reliability that bearing uses.
In the present embodiment, the first above-mentioned back-up ring 41 is formed in one with the interior cover 21 of clutch shaft bearing; And/or second back-up ring 42 and second bearing inner sleeve 22 be formed in one.Particularly, as shown in Figure 1, in the present embodiment, first back-up ring 41 can adopt with clutch shaft bearing in cover 21 Sealing shield rings that independently separate, and with clutch shaft bearing in cover 21 be fixed together, wherein overlap 21 in the clutch shaft bearing and can be NU type bearing inner sleeve; And second back-up ring 42 can adopt and second bearing inner sleeve, 22 integrated bearing inner sleeves, and wherein this integrated bearing inner sleeve can adopt NJ type bearing inner sleeve, like this; When bearing was assembled, after can earlier 21 and second bearing inner sleeve 22 of cover in the clutch shaft bearing being assembled, first back-up ring 41 that will independently be provided with again was fixing with interior cover 21 assemblings of clutch shaft bearing; Correspondingly; During dismounting, can earlier independent first back-up ring 41 that is provided be pulled down, dismantle cover 21 and second bearing inner sleeve 22 in the clutch shaft bearing again; Therefore, can be convenient to the assembly and disassembly of cover 21 and second bearing inner sleeve 22 in the clutch shaft bearing.
Can find out that to sum up the embodiment of the invention is integrally formed the bearing of moulding through adopting bearing outside and two bearing inner sleeves, in use; Can this bearing directly be assembled in the end axle axle box; Make the assembling of bearing convenient, quick, and this integrated bearing can have assembly precision preferably, avoids existing technology to adopt the interim assembling of two row bearings and the packaging technology that causes is complicated, assembling problem not in place easily; Can effectively improve the bearing working performance; Improve the power ability to bear of bearing, can be applicable in the locomotive, as the bearing of end axle; Present embodiment end axle axle box bearing is one-body molded through adopting, and makes bearing can have smaller volume, and lighter weight is simple in structure, and it is convenient to realize, can effectively cooperate with existing end axle, realizes the operation of end axle.
What should explain at last is: above embodiment is only in order to explaining technological scheme of the present invention, but not to its restriction; Although with reference to previous embodiment the present invention has been carried out detailed explanation, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technological scheme that aforementioned each embodiment put down in writing, and perhaps part technical characteristics wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of the essence disengaging various embodiments of the present invention technological scheme of relevant art scheme.
Claims (6)
1. an end axle axle box bearing is characterized in that, comprising:
Bearing outside is provided with the cover and second bearing inner sleeve in the clutch shaft bearing in the said bearing outside, the cover and second bearing inner sleeve butt joint in the said clutch shaft bearing, and have the gap between cover, second bearing inner sleeve in said bearing outside and the said clutch shaft bearing;
Be respectively arranged with a plurality of rolling elements between cover, second bearing inner sleeve and the said bearing outside in the said clutch shaft bearing; One side of said rolling element is arranged in the loose slot on the inwall of said bearing outside, and the cover or second bearing inner sleeve contact in the opposite side of said rolling element and the said clutch shaft bearing;
The cover and the two ends of second bearing inner sleeve are respectively arranged with first back-up ring and second back-up ring in the said clutch shaft bearing of butt joint, and said first back-up ring and second back-up ring dock with rolling element.
2. end axle axle box bearing according to claim 1 is characterized in that, is provided with retainer between cover and second bearing inner sleeve and the said bearing outside in the said clutch shaft bearing, and said rolling element is arranged in the through hole of said retainer.
3. end axle axle box bearing according to claim 2 is characterized in that said retainer is the plastic-steel retainer.
4. according to claim 1,2 or 3 described end axle axle box bearings, it is characterized in that said rolling element is for adopting the rolling element of logarithm shape.
5. end axle axle box bearing according to claim 1 is characterized in that said bearing outside two ends are respectively arranged with dust-proof cover, adopts non-contact to be tightly connected between said dust-proof cover and said first back-up ring, second back-up ring.
6. end axle axle box bearing according to claim 1 is characterized in that, cover is formed in one in said first back-up ring and the said clutch shaft bearing; And/or said second back-up ring and said second bearing inner sleeve are formed in one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102905166A CN102410309A (en) | 2010-09-21 | 2010-09-21 | End-axle box bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102905166A CN102410309A (en) | 2010-09-21 | 2010-09-21 | End-axle box bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102410309A true CN102410309A (en) | 2012-04-11 |
Family
ID=45912562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102905166A Pending CN102410309A (en) | 2010-09-21 | 2010-09-21 | End-axle box bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102410309A (en) |
Cited By (1)
| 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 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4203634A (en) * | 1977-02-17 | 1980-05-20 | Skf Kugellagerfabriken Gmbh | Seal and locking arrangement for a bearing assembly |
| CN2864212Y (en) * | 2005-09-09 | 2007-01-31 | 瓦房店轴承集团有限责任公司 | Two-column cylinder roller bearing with dirt guard |
| JP2008089124A (en) * | 2006-10-03 | 2008-04-17 | Nsk Ltd | Combination roller bearing device and clearance adjusting method |
| CN201250840Y (en) * | 2008-08-05 | 2009-06-03 | 镇江飞亚轴承有限责任公司 | Continuous casting and rolling machine bearing |
| CN101799039A (en) * | 2009-12-07 | 2010-08-11 | 瓦房店轴承集团有限责任公司 | Sealed double-row cylindrical roller bearing special for railway |
-
2010
- 2010-09-21 CN CN2010102905166A patent/CN102410309A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4203634A (en) * | 1977-02-17 | 1980-05-20 | Skf Kugellagerfabriken Gmbh | Seal and locking arrangement for a bearing assembly |
| CN2864212Y (en) * | 2005-09-09 | 2007-01-31 | 瓦房店轴承集团有限责任公司 | Two-column cylinder roller bearing with dirt guard |
| JP2008089124A (en) * | 2006-10-03 | 2008-04-17 | Nsk Ltd | Combination roller bearing device and clearance adjusting method |
| CN201250840Y (en) * | 2008-08-05 | 2009-06-03 | 镇江飞亚轴承有限责任公司 | Continuous casting and rolling machine bearing |
| CN101799039A (en) * | 2009-12-07 | 2010-08-11 | 瓦房店轴承集团有限责任公司 | Sealed double-row cylindrical roller bearing special for railway |
Non-Patent Citations (1)
| Title |
|---|
| 臧新群: "《汽车滚动轴承应用手册》", 31 December 1997, article "保持架材料", pages: 39-40 * |
Cited By (1)
| 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 |
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Application publication date: 20120411 |