CN102478057A - Axle box bearing - Google Patents
Axle box bearing Download PDFInfo
- Publication number
- CN102478057A CN102478057A CN2010105573054A CN201010557305A CN102478057A CN 102478057 A CN102478057 A CN 102478057A CN 2010105573054 A CN2010105573054 A CN 2010105573054A CN 201010557305 A CN201010557305 A CN 201010557305A CN 102478057 A CN102478057 A CN 102478057A
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- bearing
- axle box
- roller
- rib
- box bearing
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Abstract
The invention discloses an axle box bearing, which comprises an outer bearing bush and an inner bearing bush. Ferrule flanges are arranged on two sides of each of the outer bearing bush and the inner bearing bush, rolls are arranged between the outer bearing bush and the inner bearing bush, end faces of the rolls are arc-shaped end faces, the ferrule flanges are inclined flanges, and the arc-shaped end faces are in contact connection with the inclined flanges. The axle box bearing is simple in structure, axial force bearing capacity of the axle box bearing can be effectively increased, and risks of damage and poor performances of the axle box bearing are reduced.
Description
Technical field
The present invention relates to bearing technology, relate in particular to a kind of axle box bearing.
Background technique
In the locomotive operation process, wheel gives the axial force of bogie and is born by axle box bearing, and in the locomotive operation process; The axial force that produces is bigger usually; Sometimes can reach more than a times of radial force, have stronger impact force, therefore; Axle box bearing need have axial force bearing capacity preferably, with guarantee locomotive can be safely, operation reliably.
Fig. 1 is the existing structural representation that adopts the axle box bearing of cylindrical roller bearing.At present, the axle box bearing on the locomotive adopts cylindrical roller bearing usually, and is as shown in Figure 1; Comprise: bearing outside 10 and bearing inner sleeve 20 are provided with cylindrical roller 30, wherein between bearing outside 10 and bearing inner sleeve 20; Bearing outside 10 both sides are provided with outer ring rib 101, and the both sides of bearing inner sleeve 20 are provided with inner ring rib 201, and cylindrical roller 30 is limited between outer ring rib 101 and the inner ring rib 201; The roller end face 301 of cylindrical roller 30 directly contacts with inner ring rib 201 with outer ring rib 101; Can bear the axial force of bearing, the axle box bearing of this kind form is simple in structure, and can simplify the supporting structure of axle box; Improve the speed of locomotive operation, obtained using widely.But in the axle box bearing shown in Figure 1, the roller end face 301 of cylindrical roller 30 is planar end surfaces; Outer ring rib 101 all is straight ribs with inner ring rib 201, and cylindrical roller 30 is the rigid face contact with bearing outside 10 and contacting of bearing inner sleeve 20, when cylindrical roller 30 bears responsive to axial force; Exist sliding friction between the roller end face 30 of cylindrical roller 30 and outer ring rib 101 and the inner ring rib 201, this sliding friction has bigger surface friction drag, can produce higher temperature; Thereby cause roller end face 301, outer ring rib 101 and inner ring rib 201 appearance wearing and tearing etc. bad easily, for example, end face damage, unfilled corner etc. occur; Cause the axial force bearing capacity of axle box bearing to reduce; Even can cause axle box bearing damaged and can't use, particularly during the locomotive high speed operation, this kind risk odds will be higher.
To sum up; It is bad that the structure of existing axle box bearing causes taking place easily between cylindrical roller and the bearing housing wearing and tearing etc.; Particularly in the locomotive high speed operation; It will be very high that axle box bearing occurs damaging bad risk and probability, can have a strong impact on the Security and the reliability of locomotive operation, and the restriction locomotive is to the development of more speed traffic direction.And, along with locomotive running speed require increasingly highly, how the structure of axle box bearing is improved, bad with the damage that reduces roller bearing and bearing housing, the axial force bearing capacity of raising axle box bearing is technical issues that need to address.
Summary of the invention
The present invention provides a kind of axle box bearing, can effectively overcome existing axle box bearing and occur damaging bad easily, improves the axial force bearing capacity of axle box bearing, reduces axle box bearing and bad probability occurs damaging.
The present invention provides a kind of axle box bearing, comprising: bearing outside and bearing inner sleeve, and the end of said bearing outside and bearing inner sleeve is respectively arranged with the lasso rib; Be provided with roller between said bearing outside and the bearing inner sleeve, the roller end face of said roller is a curved end, and said lasso rib is the inclination rib, and said curved end is connected with the contact of inclination rib.
In the above-mentioned axle box bearing, said roller end face is a sphere.
In the above-mentioned axle box bearing, the angle of inclination of said inclination rib is 1 °～3 °.
The present invention provides a kind of axle box bearing; Through contacting by traditional rigid face contact becoming elastic fluid point between roller and the bearing housing contacted; Make axle box bearing can have better power bearing capacity; Reduce axle box bearing and occurred damaging bad probability, can be applicable in the high power AC transmission locomotive, improved the stability and the reliability of locomotive operation.Technological scheme axle box bearing of the present invention is simple in structure, and it is convenient to realize, through the structure between roller and the bearing housing is improved, can effectively improve the axial force bearing capacity of axle box bearing, reduces the risk that axle box bearing damages.
Description of drawings
Fig. 1 is the existing structural representation that adopts the axle box bearing of cylindrical roller bearing;
Fig. 2 is axle box bearing embodiment's of the present invention structural representation.
Reference character:
The 10-bearing outside; The 20-bearing inner sleeve; The 30-cylindrical roller;
101-outer ring rib; The 201-inner ring rib; The 301-roller end face;
The 1-bearing outside; The 2-bearing inner sleeve; The 3-roller;
The 31-roller end face; 4-lasso rib.
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. 2 is axle box bearing embodiment's of the present invention structural representation.As shown in Figure 2, the present embodiment axle box bearing comprises: bearing outside 1, bearing inner sleeve 2 and roller 3, and wherein, roller 3 is arranged between bearing outside 1 and the bearing inner sleeve 2, and the end of bearing outside 1 and bearing inner sleeve 2 is respectively arranged with lasso rib 4; The roller end face 31 of roller 3 is the arc sphere, and lasso rib 4 is the inclination rib, and the roller end face 31 of roller 3 is connected with 4 contacts of lasso rib.In the present embodiment, because roller end face 31 is a curved end, and lasso rib 4 is the inclination rib; Axle box bearing is when bearing responsive to axial force, and contacting between the roller end face 31 of roller 3 and the lasso rib 4 is the some contact, simultaneously; Because all can there be oil film in bearing inner ring rib 4 with roller 3 surfaces, therefore, can contact by formation elastic fluid point between roller 3 and the lasso rib 4; Friction between roller end face 31 and the lasso rib 4 is rolling friction, has less surface friction drag, and the wearing and tearing that reduced axle box bearing are bad; Can effectively improve the power ability to bear of bearing, can be applicable on high speed, the heavy loading locomotive, satisfy the needs of locomotive high speed, heavy service.
In the present embodiment,, make roller and bearing outside and bearing inner sleeve all have to contact preferably and be connected for ease of the processing and the making of roller; As shown in Figure 2; The roller end face 31 of above-mentioned roller 3 specifically can be set to sphere, and promptly this roller end face is a spherical end surface, between spherical end surface and inclination rib, forms elastic fluid point and contacts and be connected; Make when axle box bearing receives responsive to axial force; Can between roller end face 31 and lasso rib 4, form rolling friction, reduce the bad risk of roller and bearing housing wearing and tearing, improve the power ability to bear of bearing.
Roller 3 in the present embodiment, the lasso rib 4 at suitable angle of inclination can be set according to actual needs, so that can bear bigger axial force; Particularly; As shown in Figure 2, the angle of inclination of lasso rib 4 is that α can be 1 °～3 ° in the present embodiment, and can have δ be 30 ' tolerance; Preferably, present embodiment medium dip angle [alpha] is 1.5 °.Wherein, described angle of inclination, for shown in Fig. 2, angle between the line of dip of lasso rib 4 and the vertical line of roller end face.
In the present embodiment, as shown in Figure 2, the point of contact of roller end face 31 and lasso rib 4 is apart from the perpendicular distance between bearing outside or the bearing inner sleeve inwall; Be 2.5mm～3mm promptly also, in the practical application, can be set at appropriate value as required apart from the distance h of raceway; So that stressed between roller 3 and the lasso rib 4 can be more even, avoid roller 3 local pressures excessive and influence the performance of roller 3, particularly; The numerical value of this distance h can be according to the height H of lasso rib 4; And the size of oil duct confirms, and is near excessively apart from the edge of lasso rib 4, perhaps near excessively apart from oil duct to avoid point of contact; Lasso rib 4 middle part surfaces capable of using like this bear axial force and force of rolling friction, avoid lasso rib 4 damage of edges.
In the present embodiment, as shown in Figure 2, at the angle of inclination of having confirmed lasso rib 4; And after the above-mentioned h value; The roller end face 31 of correct radial just can be set, and wherein, the radius R of roller end face 31 can be [Dwe/2-h]/sin (α+δ)～[Dwe/2-h]/sin (numerical value between the α-δ); Wherein, Dwe is the radial dimension of roller 3.
The present embodiment axle box bearing can be applicable in the high power AC transmission locomotive of 25 tons of axles weights, 120km/h; Through being improved to existing elastic fluid point by the contact of traditional rigid face, contacting between roller and bearing outside or the bearing inner sleeve contact; Frictional property between roller and the bearing housing also becomes rolling friction by traditional sliding friction; Thereby can effectively improve the power bearing capacity of axle box bearing; Satisfy the needs of locomotive high speed, heavy service, improve the stability and the reliability of locomotive operation.In the practical application; Through adopting the present embodiment axle box bearing, can bring up to 0.4 times of radial force with the axial force bearing capacity of axle box bearing by existing 0.2 times of radial force; And can effectively satisfy the high speed operation of locomotive, reduce axle box bearing and bad probability occurred damaging.
It will be understood by those skilled in the art that; The present embodiment axle box bearing is except can be applicable to above-mentioned high power AC transmission locomotive; Also can be applicable on other power gearing with heavy duty, high-speed requirement; Thereby can effectively improve the stability of mechanical movement, avoid bearing to occur damaging bad.
To sum up; Embodiment of the invention axle box bearing is through contacting contacting by traditional rigid face contact becoming elastic fluid point between roller and the bearing housing; Make axle box bearing can have better power bearing capacity; Reduce axle box bearing and occurred damaging bad probability, can be applicable in the high power AC transmission locomotive, improved the stability and the reliability of locomotive operation.The present embodiment axle box bearing is simple in structure, and it is convenient to realize, through the structure between roller and the bearing housing is improved, can effectively improve the axial force bearing capacity of axle box bearing, reduces the risk that axle box bearing damages.
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 (3)
1. axle box bearing comprises: bearing outside and bearing inner sleeve, and the end of said bearing outside and bearing inner sleeve is respectively arranged with the lasso rib; It is characterized in that, be provided with roller between said bearing outside and the bearing inner sleeve, the roller end face of said roller is a curved end, and said lasso rib is the inclination rib, and said curved end is connected with the contact of inclination rib.
2. axle box bearing according to claim 1 is characterized in that, said roller end face is a sphere.
3. axle box bearing according to claim 1 and 2 is characterized in that, the angle of inclination of said inclination rib is 1 °～3 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105573054A CN102478057A (en) | 2010-11-22 | 2010-11-22 | Axle box bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105573054A CN102478057A (en) | 2010-11-22 | 2010-11-22 | Axle box bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102478057A true CN102478057A (en) | 2012-05-30 |
Family
ID=46090791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105573054A Pending CN102478057A (en) | 2010-11-22 | 2010-11-22 | Axle box bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102478057A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB718781A (en) * | 1952-01-05 | 1954-11-17 | Skf Svenska Kullagerfab Ab | Improvements in cylindrical roller bearings |
| CN88210217U (en) * | 1988-02-27 | 1988-11-23 | 营口轴承厂 | Shock-resistant trimming bearing for passenger train |
| CN201507553U (en) * | 2009-09-16 | 2010-06-16 | 常州克劳诺斯特种轴承制造有限公司 | Cylindrical roller 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
- 2010-11-22 CN CN2010105573054A patent/CN102478057A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB718781A (en) * | 1952-01-05 | 1954-11-17 | Skf Svenska Kullagerfab Ab | Improvements in cylindrical roller bearings |
| CN88210217U (en) * | 1988-02-27 | 1988-11-23 | 营口轴承厂 | Shock-resistant trimming bearing for passenger train |
| CN201507553U (en) * | 2009-09-16 | 2010-06-16 | 常州克劳诺斯特种轴承制造有限公司 | Cylindrical roller 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 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120530 |