CN105370728A - Bearing for locomotive driving device - Google Patents
Bearing for locomotive driving device Download PDFInfo
- Publication number
- CN105370728A CN105370728A CN201510903138.7A CN201510903138A CN105370728A CN 105370728 A CN105370728 A CN 105370728A CN 201510903138 A CN201510903138 A CN 201510903138A CN 105370728 A CN105370728 A CN 105370728A
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- Prior art keywords
- bearing
- ring
- outer ring
- inner race
- bearing inner
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- Rolling Contact Bearings (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
The invention discloses a bearing for a locomotive driving device. A bearing inner ring is arranged in a bearing outer ring; the bearing inner ring and the bearing outer ring are concentric circular rings; flanges are arranged at the two ends of the bearing outer ring; a retainer is arranged between the bearing inner ring and the bearing outer ring; rolling bodies are arranged in window holes of the retainer; the upper parts of the rolling bodies are in contact with grooves formed by the flanges at the two ends of the bearing outer ring; the lower part of the rolling bodies are in contact with the bearing inner ring; and a first check ring and a second check ring are respectively arranged at the two ends of the bearing inner ring, and are butted with the end faces of the rolling bodies. The bearing for the locomotive driving device can be directed mount at the end of a driving gear of an axle suspension bearing box when in use; with the adoption of the structure employing cylindrical rollers, the requirement that the bearing can bear greater radial force can be met; the bearing is simple in structure and convenient to assemble, and has higher carrying capacity; in addition, the abrasion problem possibly arising from a sliding bearing can be avoided; and the service life and the reliability degree of the bearing can be increased and improved effectively.
Description
Technical field
The present invention relates to bearing technology, particularly relate to a kind of driving device for locomotives bearing, belong to field of bearings.
Background technique
Along with the development of science and technology, modern industry just progressively maximizes to manufacturing mechanism, complicated, speed up and automation direction development, boosting productivity, reduces costs, energy saving, minimizing reject rate, ensures to have very large advantage in quality of product etc.
Along with applying of railway technology, a large amount of locomotive puts into operation, and in locomotive, the quality of each parts directly affects the performance of locomotive.Bearing is as one of locomotive key components and parts, and play a part fixing in mechanical transmission course and reduce load friction factor, it mainly connects each transmission shaft in locomotive, bears the impact of various power, and its reliability is related to the safe operation of locomotive.Driving bearing directly bears the power of locomotive traction motor and gear generation, and therefore, locomotive drive bearing performance affects the roadability of locomotive.
Locomotive axle suspension type traction motor is normally supported on bogie frame by suspension rod in side; Opposite side is bearing on axletree by axle suspension bearing.Though axle suspension bearing adopt sliding bearing easier, its lubrication and check all not too convenient.More disadvantageously it inevitably produces wearing and tearing, and will reduce the accuracy of mesh, the minimizing gear life of motor-driven gear once abrasion.From the fifties, to use rolling bearing instead without sliding bearing with regard to having.Due to the working life that this bearing requirements is higher, so be also all only use roller bearing.Roller bearing, selfaligning roller bearing and tapered roller bearing is had so far through what adopt.
Current high-power locomotive drive unit bearing many employings tapered roller structure, the installation good rigidity of tapered roller bearing, be conducive to the accuracy of mesh of gear, but its mounting or dismounting are more difficult with the adjustment of axial internal clearance, and single-row tapered roller bearing can only bear unidirectional axial force, it is fairly simple that roller bearing compares tapered roller bearing I&M, the benefit fat cycle is longer, and compare tapered roller bearing, its ability of bearing radial load is stronger, by the design of bearing inner race single block border and loose rib, bearing can be met bear by bringing a small amount of axial force problem during motor positive and inverse.Be applicable to more powerful locomotive, bearing is to bear the situation of radial load.
Summary of the invention
The present invention be directed to the deficiency that existing driving device for locomotives bearing exists, a kind of driving device for locomotives bearing is proposed, to meet while bearing mainly bears larger radial force also needs and bear the requirement of a small amount of axial force, solve the abrasion problems that sliding bearing exists simultaneously.
This driving device for locomotives bearing, bearing inner race is arranged in bearing outer ring, bearing inner race and bearing outer ring are donut, the two ends of bearing outer ring are provided with rib, retainer is provided with between bearing inner race and bearing outer ring, rolling element is arranged in the fenestra of retainer, the groove that the top of rolling element is formed with the rib at two ends on bearing outer ring contacts, the bottom of rolling element contacts with bearing inner race, the two ends of bearing inner race are respectively equipped with the first back-up ring and the second back-up ring, and the first back-up ring and the second back-up ring dock with the end face of rolling element.
Described retainer is integrated type brass retainer.
Described rolling element is logarithm shape rolling element.
The first described back-up ring and bearing inner race are set to one, and the second back-up ring is independently loose rib.
Driving device for locomotives bearing provided by the invention, can directly be installed to axle suspension bearing box actuation gear end in use, by adopting the structure of cylindrical roller, can meet the requirement that bearing bears larger radial force, the two rib of bearing outer ring and bearing inner race single block border add loose rib can make again bearing receiving portion point axial force, and structure is simple, be convenient to assembling, there is stronger bearing capacity, turn avoid the abrasion problems adopting sliding bearing to occur simultaneously, effectively can improve working life and the reliability of bearing.
Accompanying drawing explanation
Fig. 1 is the axial sectional view of end axle axle box bearing embodiment of the present invention;
Fig. 2 is the radial cross-section of end axle axle box bearing embodiment of the present invention.
Reference character is as follows: 1-bearing outer ring, 2-bearing inner race, 3-rolling element, 41-first back-up ring, 42-second back-up ring, 5-retainer.
Embodiment
For making the object of the embodiment of the present invention, technological scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technological scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Fig. 1 is the axial sectional view of driving device for locomotives bearing embodiment of the present invention; Fig. 2 is the radial cross-section of driving device for locomotives bearing embodiment of the present invention.As depicted in figs. 1 and 2, this driving device for locomotives bearing, bearing inner race 2 is arranged in bearing outer ring 1, bearing inner race 2 and bearing outer ring 1 are donut, the two ends of bearing outer ring 1 are provided with rib, retainer 5 is provided with between bearing inner race 2 and bearing outer ring 1, rolling element 3 is arranged in the fenestra of retainer 5, the groove that top and the rib at two ends on bearing outer ring 1 of rolling element 3 are formed contacts, the bottom of rolling element 3 contacts with bearing inner race 2, the two ends of bearing inner race 2 are respectively equipped with the first back-up ring 41 and the second back-up ring 42, first back-up ring 41 and the second back-up ring 42 dock with the end face of rolling element 3.Described retainer 5 is integrated type brass retainer.Described rolling element 3 is logarithm shape rolling element.Described first back-up ring 41 is set to one with bearing inner race 2, and the second back-up ring 42 is independently loose rib.
The present embodiment bearing comprises bearing outer ring 1, is provided with bearing inner race 2, and has gap between bearing outer ring 1 and bearing inner race 2 in this bearing outer ring 1; Multiple rolling element 3 is respectively arranged with between bearing outer ring 1 and bearing inner race 2, the top of rolling element 3 is arranged in the groove on the inwall of bearing outer ring 1, the bottom of rolling element 3 contacts with bearing inner race 2, and bearing inner race 2 under the effect of rolling element 3, can be rotated relative to bearing outer ring 1; In addition, the outer end of bearing inner race 2 is respectively arranged with the first back-up ring 41 and the second back-up ring 42, and the first back-up ring 41 and the second back-up ring 42 dock with rolling element 3 end face, make the first back-up ring 41 and very close to each other between the second back-up ring 42 and adjacent rolling element 3, when bearing inner race 2 rotates, can not axial motion be produced, ensure the rotating effect of the axletree connected.
The driving device for locomotives bearing of the present embodiment can be directly installed in driving device for locomotives gear-box on slave gear hub, slave gear hub can be located in bearing inner race 2, and be interference fit between slave gear hub and bearing inner race 2, slave gear hub and axletree are also interference fit, can rotate to make axletree together with bearing inner race 2.
The driving device for locomotives bearing of the present embodiment can directly be installed to vehicle axle box drive end in use, by adopting the structure of cylindrical roller, the requirement that bearing bears larger radial force can be met, bearing outer ring 1 pair of rib and bearing inner race 2 single block border add loose rib can make again bearing receiving portion point axial force, this bearing be integrally formed, structure is simple, be convenient to assembling, there is stronger bearing capacity, turn avoid the abrasion problems adopting sliding bearing to occur simultaneously, effectively can improve working life and the reliability of bearing.
In the present embodiment, retainer 5 can be respectively arranged with between bearing inner race 2 and bearing outer ring 1, rolling element 3 is arranged in the fenestra of retainer 5, thus utilizes this retainer 5 effectively to limit the position of rolling element 3, thus improves the ability that bearing inner race 2 bears radial force.Particularly, as shown in Figure 1, this retainer 5 can be provided with several through hole, in each through hole, all can be provided with rolling element 3, and, the part that the top of each rolling element 3 contacts with bearing outer ring 1 is all arranged in the groove of bearing outer ring 1, and scroll bar 3 bottom contacts with bearing inner race 2, like this, in bearing working process, rotate together with the axletree that bearing inner race 2 will be fixed together with it, rolling element 3 will rotate in this retainer 5 and loose slot 11, effectively can ensure the rotating effect of axletree.
In the present embodiment, above-mentioned retainer 5 specifically can be integrated type brass retainer, and particularly, it is high that this retainer 5 has intensity, is applicable to the feature run up, and can meet the effect of back-up roller kinetoplast.In addition, copper cage has the anti-acceleration performance of high antidetonation, when oil lubrication is got rid of in drive unit employing, is conducive to the greasy property improving bearing, more effectively ensures the reliability that bearing uses.
In the present embodiment, above-mentioned rolling element 3 adopts the rolling element of logarithm shape.Because existing most employing modified line repaiies the rolling element of type bus, there is stress and concentrate in the end face of rolling element, can not eliminate for unbalance loading, therefore, the present embodiment rolling element is by adopting logarithm shape, the stress can eliminating rolling element end face is greatly concentrated, and improves the reliability and stability that bearing uses.
In the present embodiment, the first above-mentioned back-up ring 41 is formed in one with bearing inner race 2; Second back-up ring 42 is independently loose rib structure.Particularly, as shown in Figure 1, in the present embodiment, the first back-up ring 41 can adopt bearing inner race integrated with bearing inner race 2, and this integrated bearing inner race can adopt NJ type bearing inner race, and the second back-up ring 42 is for independently structure and connect with bearing inner race 2.Like this, when bearing is assembled, after can first bearing inner race 2 being assembled, more independent the second back-up ring 42 arranged is assembled fixing with bearing inner race 2, correspondingly, during dismounting, can first independent the second back-up ring 42 arranged be pulled down, dismantle bearing inner race 2 again, therefore, the assembly and disassembly of bearing can be convenient to.
In summary it can be seen, the embodiment of the present invention forms integrated bearing by adopting bearing outer ring and bearing inner race, in use, can by the wheel hub of this bearing direct-assembling driven gear in drive unit gear-box, carry drive unit weight and gear torque even load by the bearing of this bearing and the axle suspension bearing box the other end, this bearing structure is simple, there is stronger bearing capacity, it is convenient to realize, and can effectively apply to driving device for locomotives gear end, ensure the running of whole drive unit.
Last it is noted that above embodiment is only in order to illustrate technological scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technological scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technological scheme.
Claims (4)
1. a driving device for locomotives bearing, bearing inner race is arranged in bearing outer ring, bearing inner race and bearing outer ring are donut, the two ends of bearing outer ring are provided with rib, retainer is provided with between bearing inner race and bearing outer ring, rolling element is arranged in the fenestra of retainer, the groove that the top of rolling element is formed with the rib at two ends on bearing outer ring contacts, the bottom of rolling element contacts with bearing inner race, it is characterized in that: the two ends of bearing inner race are respectively equipped with the first back-up ring and the second back-up ring, and the first back-up ring and the second back-up ring dock with the end face of rolling element.
2. driving device for locomotives bearing according to claim 1, is characterized in that: described retainer is integrated type brass retainer.
3. driving device for locomotives bearing according to claim 1, is characterized in that: described rolling element is logarithm shape rolling element.
4. driving device for locomotives bearing according to claim 1, is characterized in that: the first described back-up ring and bearing inner race are set to one, and the second back-up ring is independently loose rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510903138.7A CN105370728A (en) | 2015-12-08 | 2015-12-08 | Bearing for locomotive driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510903138.7A CN105370728A (en) | 2015-12-08 | 2015-12-08 | Bearing for locomotive driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105370728A true CN105370728A (en) | 2016-03-02 |
Family
ID=55373222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510903138.7A Pending CN105370728A (en) | 2015-12-08 | 2015-12-08 | Bearing for locomotive driving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105370728A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4728204A (en) * | 1985-11-22 | 1988-03-01 | Riv-Skf Officine Di Villar Perosa S.P.A. | Taper roller bearing, particularly for railway use |
| CN2286502Y (en) * | 1997-04-22 | 1998-07-22 | 江苏省球星轴承集团有限公司 | Bearing specially used for self-locking round roller |
| CN2918853Y (en) * | 2005-12-31 | 2007-07-04 | 瓦房店轴承集团有限责任公司 | Cylinder roller bearing for punching holder |
| CN201513468U (en) * | 2009-09-14 | 2010-06-23 | 洛阳市洛凌轴承科技股份有限公司 | Fully filled cylindrical roller bearing with dustproof structure |
| CN103470622A (en) * | 2013-09-29 | 2013-12-25 | 中国北车集团大连机车研究所有限公司 | Bearing for large axle load axle box |
-
2015
- 2015-12-08 CN CN201510903138.7A patent/CN105370728A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4728204A (en) * | 1985-11-22 | 1988-03-01 | Riv-Skf Officine Di Villar Perosa S.P.A. | Taper roller bearing, particularly for railway use |
| CN2286502Y (en) * | 1997-04-22 | 1998-07-22 | 江苏省球星轴承集团有限公司 | Bearing specially used for self-locking round roller |
| CN2918853Y (en) * | 2005-12-31 | 2007-07-04 | 瓦房店轴承集团有限责任公司 | Cylinder roller bearing for punching holder |
| CN201513468U (en) * | 2009-09-14 | 2010-06-23 | 洛阳市洛凌轴承科技股份有限公司 | Fully filled cylindrical roller bearing with dustproof structure |
| CN103470622A (en) * | 2013-09-29 | 2013-12-25 | 中国北车集团大连机车研究所有限公司 | Bearing for large axle load axle box |
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Application publication date: 20160302 |