CN102494115B - Bearing lubricating structure of driving gear shaft of gear box for urban rail traffic vehicle - Google Patents
Bearing lubricating structure of driving gear shaft of gear box for urban rail traffic vehicle Download PDFInfo
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- CN102494115B CN102494115B CN201110387758.1A CN201110387758A CN102494115B CN 102494115 B CN102494115 B CN 102494115B CN 201110387758 A CN201110387758 A CN 201110387758A CN 102494115 B CN102494115 B CN 102494115B
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- oil
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- upper box
- gear shaft
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Abstract
The invention discloses a bearing lubricating structure of a driving gear shaft of a gear box for an urban rail traffic vehicle, which belongs to the field of design of gear boxes of urban rail traffic vehicles and solves the problem that an bearing on the outer side cannot be sufficiently lubricated under the condition that a plurality of bearings are installed at one end of the driving gear shaft. The driving gear shaft is installed on an upper box body, the side end of the upper box body is connected with an outer end cover, and the lower portion of the upper box body is connected with a lower box body. A first oil collecting sump is arranged on the inner wall of the upper box body and located at the upper position of the bearing, and the first oil collecting sump is communicated with the bearing located on the outer side through an oil inlet channel. A second oil collecting sump is arranged between the inner wall of the end cover and an outer ring of the bearing located on the outer side, redundant lubricating oil in the second oil collecting sump flows into an oil sump of the lower box body along an oil return channel. The bearing lubricating structure of the driving gear shaft of the gear box for the urban rail traffic vehicle compensates the lubricating oil entering the bearing on the outer side by arranging a special oil way and enables the bearing on the outer side to be sufficiently lubricated, thereby effectively controlling temperature rise of the bearing on the outermost side and prolonging service life of the bearing.
Description
Technical field
Gear box designs field is used the present invention relates to city rail traffic vehicle, specially a kind of city rail traffic vehicle gear-box
Driving gear shaft bearing lubrication structure.
Background technology
Lubricating oil splash lubricating system is all taken in the bearing lubrication of city rail traffic vehicle gear box, belongs to optional lubrication, profit
Flowed into by special oil circuit with the lubricating oil being splashed on gear case body inwall it is lubricated in bearing.For passing through
Extruding between gear tooth, makes the lubricating oil on the gear teeth flow directly into the bearing lubrication mode in bearing, as shown in figure 1, working as
When pinion shaft right side is disposed with two bearings, only less lubricating oil can flow to outermost side bearing.When pinion shaft rotating speed
When higher, the temperature rise of outermost side bearing is obvious.
Current bearing lubricating structure of driving gear shaft of gear box for urban rail traffic vehicle is not all set for above-mentioned situation
Special oil circuit come ensure outermost side bearing lubricating oil supply.
The content of the invention
In order to overcome the shortcomings of that existing gear-box outboard bearing is unable to sufficient lubrication, the present invention is intended to provide a kind of urban rail
Vehicular traffic gear-box driving gear shaft bearing lubrication structure, by setting special oil circuit to entering the lubrication of outboard bearing
Oil is supplemented, and makes outermost bearing lubrication fully, can efficiently control the temperature rise of outermost side bearing, extends its service life.
To achieve these goals, the technical solution adopted in the present invention is：
A kind of bearing lubricating structure of driving gear shaft of gear box for urban rail traffic vehicle, in driving gear shaft one end equipped with many
Individual bearing, on upper box, the upper box side is connected with outer end cap to the driving gear shaft, and its underpart is connected with nowel
Body, it is structurally characterized in that, the first oil sump is provided with upper box inwall and positioned at the top position of bearing, first oil sump
Connected by oil inlet passage between the bearing in outside.
In order to further improve the lubricant effect to outboard bearing, between the outer end cap inwall and outboard bearing outer ring
It is provided with the second oil sump.
Preferably, cover plate is housed on the upper box inwall, institute is formed between the cover plate and upper box inwall
State the first oil sump.
In order to strengthen the oil-collecting ability of the first oil sump, it is connected by boss between the cover plate and upper box inwall, by
This described cover plate, first oil sump is formed between boss and upper box inwall.
It is lubricated on the bearing in outside to ensure that the lubricating oil in the first oil sump is smoothly delivered to, on the upper box
Fuel feed hole and oil-feed tank are provided with, the outer end cap top is provided with oil-feed tank；The oil-feed tank and outer end cap of the fuel feed hole, upper box
Oil-feed tank connect to form oil inlet passage.
Preferably, the outer end cap inwall and the second oil sump is formed between the outer ring of the bearing in outside.
The upper box bottom is provided with outage and oil scupper, and the outer end cap bottom is provided with oil scupper；The outage,
The oil scupper of upper box, the oil scupper of outer end cap connect to form drainback passage.
In order to ensure that the lubricating oil being splashed on upper box roof is fallen into the first oil sump, the upper box top it is interior
Wall is provided with leakproof oil gluten plate.
The oil scupper of the upper box, the oil scupper of outer end cap are arranged at an angle with the vertical curve for crossing outer end cap center
Position, the outage on upper box is in vertical direction distance the second oil sump bottom of pond certain distance, it is ensured that the second oil-collecting
The lubricating oil gathered in pond is lubricated into outboard bearing.Unnecessary lubricating oil is back to down along outage in second oil sump
Casing.
Used as a kind of example, described driving gear shaft one end is equipped with two bearings.
By said structure, the extruding between using gear tooth is passed through makes the lubricating oil on the gear teeth flow directly into bearing
Bearing lubrication mode when, can flow to the outermost side bearing in two bearings in order to ensure enough lubricating oil, the present invention is in original
On the basis of lubricating system a kind of special lubrication system to outermost side bearing is provided by adding oil sump and oil circuit.The lubrication knot
Structure operation principle is as follows：
As shown in Fig. 2 pinion shaft right side is by two bearings, when gear-box works, the gear that lubricating oil is rotated
Take on gear chamber interior wall, the leakproof oil gluten plate of casing top imports in the right side oil sump for setting the oil on inwall, in casing and
Oil circuit is processed on the outer end cap of right side, the oil in the oil sump of right side is imported into outermost side bearing, meanwhile, oil scupper and right side on casing
The oil scupper of outer end cap is all disposed within the position at an angle with the vertical curve for crossing outer end cap center, outage vertical direction away from
With a certain distance from the second oil sump bottom of pond, make to form certain oil storage space between outer end cap and outboard bearing, it is ensured that enough oil
Amount enters outermost side bearing.
So, except making lubricating oil enter right side outermost side bearing by gear teeth extruding, also special oil circuit is to entering
The lubricating oil of right side outermost side bearing is supplemented, and makes its lubrication abundant.
Compared with prior art, the beneficial effects of the invention are as follows：The present invention is applied in rail traffic vehicle gear box actively
In gear-bearing lubrication, bearing can be made sufficiently to be lubricated, especially for gear shaft side by two bearings, two
Individual bearing is only brought into the lubricating system of outermost side bearing by lubricating oil by gear tooth extruding, and the present invention obtains outermost bearing
Sufficient lubrication has been arrived, the service life of bearing has been improve.
Below in conjunction with drawings and Examples, the present invention is further elaborated.
Brief description of the drawings
Fig. 1 is the lubrication system schematic diagram of existing outermost side bearing；
Fig. 2 is the structure principle chart of an embodiment of the present invention；
Fig. 3 is the in-line figure of upper box of the present invention；
Fig. 4 is the oil return line figure of upper box of the present invention；
Fig. 5 is the oil circuit figure in outer end cap of the present invention；
Fig. 6 is the A-A sectional views of Fig. 5.
In figure
1- driving gear shafts；2- upper boxes；3- cover plates；4- leakproof oil gluten plates；5- boss；
6- fuel feed holes；7,8- oil-feed tanks；9- outer end caps；10,11- oil scuppers；
12- outages；13- lower boxes；The oil sumps of 14- first；The oil sumps of 15- second.
Specific embodiment
A kind of bearing lubricating structure of driving gear shaft of gear box for urban rail traffic vehicle, as shown in Fig. 2 driving gear shaft 1
On upper box 2, by two bearings, left side is by a bearings for the right side of driving gear shaft 1.By upper box 2, cover plate
3rd, the oil-feed on the fuel feed hole 6 and oil-feed tank 7, outer end cap 9 on leakproof oil gluten plate 4, outer end cap 9, the first oil sump 14, upper box 2
Oil scupper 11 on oil scupper 10, upper box 2 and outage 12 on groove 8, outer end cap 9 constitute the profit to right side outermost side bearing
Slipped Clove Hitch structure.
When gear-box works, lubricating oil can be splashed on box top wall, be arranged on the leakproof oil gluten plate 4 on the inwall of upper box 2
The lubricating oil that will can be splashed on box top wall imports the first oil sump 14.
As shown in figure 3, the upper box 2 is provided with boss 5, there is screwed hole on boss 5, be connected through a screw thread part by cover plate
3 are connected on boss 5, form the first oil sump 14.
The in-line of the composition of oil-feed tank 8 on the fuel feed hole 6, oil-feed tank 7 and outer end cap 9 on the upper box 2 can be by
Oil in first oil sump 14 is imported in outermost side bearing.As shown in Figure 4, Figure 5 and Figure 6, the oil scupper 11 on upper box 2 is set
In the position at an angle with the vertical curve for crossing outer end cap center, the oil scupper 10 on outer end cap 9 is also disposed at and crosses outer end cap
The vertical curve at center is into the position of same angle, because oil scupper 11, oil scupper 10 and outage 12 be not in extreme lower position, such as
Shown in Fig. 4, the second oil sump 15 is formed between upper box 2, outer end cap 9 and outboard bearing outer ring, gathered in the second oil sump 15
Lubricating oil can ensure enough lubricating oil enter outermost side bearing.
Outage 12 is communicated with oil scupper 11 on upper box 2, by lubricating oil unnecessary in the second oil sump 15 along top box
The inwall of body 2 and lower box 13 is imported in the oil sump of lower box 13.
The content that above-described embodiment is illustrated should be understood to that these embodiments are only used for being illustrated more clearly that the present invention, without
For limiting the scope of the present invention, after the present invention has been read, those skilled in the art are to the various equivalent form of values of the invention
Modification fall within the application appended claims limited range.
Claims (8)
1. a kind of bearing lubricating structure of driving gear shaft of gear box for urban rail traffic vehicle, in driving gear shaft（1）One end is equipped with
Multiple bearings, the driving gear shaft（1）Mounted in upper box（2）On, the upper box（2）Side is connected with outer end cap（9）, under it
Portion is connected with lower box（13）, it is characterised in that the lubricating oil on the gear teeth is directly flowed using by the extruding between gear tooth
When entering the bearing lubrication mode in bearing, in upper box（2）The first oil sump is provided with inwall and positioned at the top position of bearing
（14）, first oil sump（14）Connected by oil inlet passage between the bearing in outside；In outer end cap（9）Inwall and outer
The second oil sump is provided between side axle bearing outer-ring（15）, second oil sump（15）Connected with drainback passage.
2. bearing lubricating structure of driving gear shaft of gear box for urban rail traffic vehicle according to claim 1, its feature exists
In the upper box（2）Cover plate is housed on inwall（3）, the cover plate（3）With upper box（2）Described first is formed between inwall
Oil sump（14）.
3. bearing lubricating structure of driving gear shaft of gear box for urban rail traffic vehicle according to claim 2, its feature exists
In the cover plate（3）With upper box（2）Pass through boss between inwall（5）It is connected.
4. bearing lubricating structure of driving gear shaft of gear box for urban rail traffic vehicle according to claim 1, its feature exists
In the upper box（2）On be provided with fuel feed hole（6）And oil-feed tank（7）, the outer end cap（9）Top is provided with oil-feed tank（8）；Institute
State fuel feed hole（6）, upper box（2）Oil-feed tank（7）And outer end cap（9）Oil-feed tank（8）Connection forms oil inlet passage.
5. bearing lubricating structure of driving gear shaft of gear box for urban rail traffic vehicle according to claim 1, its feature exists
In the upper box（2）Bottom is provided with outage（12）With oil scupper（11）, the outer end cap（9）Bottom is provided with oil scupper
（10）；The outage（12）, upper box（2）Oil scupper（11）, outer end cap（9）Oil scupper（10）Connection forms oil return and leads to
Road.
6. bearing lubricating structure of driving gear shaft of gear box for urban rail traffic vehicle according to claim 1, its feature exists
In the upper box（2）The inwall on top is provided with leakproof oil gluten plate（4）.
7. bearing lubricating structure of driving gear shaft of gear box for urban rail traffic vehicle according to claim 1, its feature exists
In the upper box（2）Outage（12）Level height compared with the second oil sump（15）Bottom of pond it is high.
8. bearing lubricating structure of driving gear shaft of gear box for urban rail traffic vehicle according to claim 1, its feature exists
In the driving gear shaft（1）One end is equipped with two bearings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110387758.1A CN102494115B (en) | 2011-11-29 | 2011-11-29 | Bearing lubricating structure of driving gear shaft of gear box for urban rail traffic vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110387758.1A CN102494115B (en) | 2011-11-29 | 2011-11-29 | Bearing lubricating structure of driving gear shaft of gear box for urban rail traffic vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102494115A CN102494115A (en) | 2012-06-13 |
| CN102494115B true CN102494115B (en) | 2017-05-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201110387758.1A Active CN102494115B (en) | 2011-11-29 | 2011-11-29 | Bearing lubricating structure of driving gear shaft of gear box for urban rail traffic vehicle |
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062382B (en) * | 2013-01-25 | 2015-12-02 | 南车株洲电力机车有限公司 | A kind of gear-box |
| CN103195912B (en) * | 2013-04-12 | 2016-03-23 | 南京高速齿轮制造有限公司 | The gear-box of rail traffic vehicles |
| CN103423426A (en) * | 2013-08-29 | 2013-12-04 | 沃德(天津)传动有限公司 | Speed reducer and lubricating structure thereof |
| CN104500700B (en) * | 2014-12-17 | 2017-01-11 | 常州市瑞泰工程机械有限公司 | Streetcar gear transmission device |
| CN104633061B (en) * | 2014-12-17 | 2017-02-22 | 常州市瑞泰工程机械有限公司 | Gear case body for tramcar |
| CN104534065A (en) * | 2014-12-30 | 2015-04-22 | 北京二七轨道交通装备有限责任公司 | Transfer case |
| CN105240505A (en) * | 2015-09-19 | 2016-01-13 | 江苏泰宇减速机有限公司 | Self-lubricating reduction box for preventing oil leakage |
| CN106015526B (en) * | 2016-07-18 | 2017-12-22 | 来安县科来兴实业有限责任公司 | A kind of novel high speed EMUs gear-box |
| JP6479735B2 (en) * | 2016-09-26 | 2019-03-06 | 株式会社椿本チエイン | Gear device |
| CN107882962A (en) * | 2016-09-28 | 2018-04-06 | 中车北京南口机械有限公司 | The casing of the gear-box of rail traffic vehicles |
| CN110065896A (en) * | 2019-05-20 | 2019-07-30 | 成都久和建设设备有限责任公司 | A kind of tower crane retarder of efficient lightweight |
| CN110805619B (en) * | 2019-10-30 | 2021-01-12 | 柳州铁道职业技术学院 | Gear box driving gear shaft bearing lubricating structure for urban rail transit vehicle |
| US11988274B2 (en) | 2022-03-01 | 2024-05-21 | Cummins Inc. | Passive gearbox lubrication system with a secondary sump |
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| CN102494115A (en) | 2012-06-13 |
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