CN102494115A - 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 PDF

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Publication number
CN102494115A
CN102494115A CN2011103877581A CN201110387758A CN102494115A CN 102494115 A CN102494115 A CN 102494115A CN 2011103877581 A CN2011103877581 A CN 2011103877581A CN 201110387758 A CN201110387758 A CN 201110387758A CN 102494115 A CN102494115 A CN 102494115A
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China
Prior art keywords
oil
bearing
driving gear
gear shaft
upper box
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Granted
Application number
CN2011103877581A
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Chinese (zh)
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CN102494115B (en
Inventor
蒲全卫
陈喜红
申长宏
易兴利
高彬
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CSR Zhuzhou Electric Locomotive Co Ltd
CSR Zhuzhou Electric Locomotive Research Institute Co Ltd
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CSR Zhuzhou Electric Locomotive Co Ltd
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Priority to CN201110387758.1A priority Critical patent/CN102494115B/en
Publication of CN102494115A publication Critical patent/CN102494115A/en
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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

The city rail traffic vehicle is with gear-box driving gear shaft bearing lubrication structure
Technical field
The present invention relates to the city rail traffic vehicle and use the gear box designs field, be specially a kind of city rail traffic vehicle with gear-box driving gear shaft bearing lubrication structure.
Background technique
The lubricating oil splash lubricating system is all taked in the bearing lubrication of city rail traffic vehicle gear box, belongs to optional lubricated, utilizes the lubricant oil that is splashed on the gear case body inwall to flow in the bearing through special oil circuit it is lubricated.For through the extruding between gear tooth, make the lubricant oil on the gear teeth flow directly into the bearing lubrication mode in the bearing, as shown in Figure 1, when being furnished with two bearings, have only less lubricant oil can flow to the outermost bearing on the pinion shaft right side.When the pinion shaft rotating speed was higher, the temperature rise of outermost bearing was obvious.
The city rail traffic vehicle all is not provided with the lubricant oil supply that special oil circuit guarantees the outermost bearing to above-mentioned situation with gear-box driving gear shaft bearing lubrication structure at present.
Summary of the invention
In order to overcome the deficiency that existing gear-box outboard bearing can not sufficient lubrication; The present invention aims to provide a kind of city rail traffic vehicle with gear-box driving gear shaft bearing lubrication structure; Through special oil circuit is set the lubricant oil that gets into outboard bearing is replenished; Make outermost bearing lubrication abundant, can control the temperature rise of outermost bearing effectively, prolong its working life.
To achieve these goals, the technological scheme that the present invention adopted is:
A kind of city rail traffic vehicle is with gear-box driving gear shaft bearing lubrication structure; At driving gear shaft one end a plurality of bearings are housed, this driving gear shaft is contained on the upper box, and said upper box side is connected with outer end cap; Its underpart is connected with lower box; Its structural feature is, on the upper box inwall and the top position that is positioned at bearing be provided with first oil sump, this first oil sump with between the bearing in the outside, be communicated with through oil inlet passage.
In order to improve lubrication effect further, be provided with second oil sump between said outer end cap inwall and the outboard bearing outer ring to outboard bearing.
As preferred version, on the said upper box inwall cover plate is housed, form said first oil sump between said cover plate and the upper box inwall.
In order to strengthen the oil-collecting ability of first oil sump, link to each other through boss between said cover plate and the upper box inwall, form said first oil sump between said thus cover plate, boss and the upper box inwall.
Be lubricated in order to guarantee that lubricant oil in first oil sump is delivered on the bearing in the outside smoothly, have oil inlet hole and oil-feed tank on the said upper box, said outer end cap top has oil-feed tank; The oil-feed tank of said oil inlet hole, upper box and the oil-feed tank of outer end cap are communicated with the formation oil inlet passage.
As preferred version, said outer end cap inwall and between the outer ring of the bearing in the outside, form second oil sump.
Said upper box bottom has oil drainage hole and oil-discharge trough, and said outer end cap bottom has oil-discharge trough; The oil-discharge trough of said oil drainage hole, upper box, the oil-discharge trough of outer end cap are communicated with the formation drainback passage.
For the lubricant oil that guarantees to be splashed on the upper box roof falls into first oil sump, the inwall on said upper box top is provided with the leakproof oil gluten plate.
The oil-discharge trough of said upper box, the oil-discharge trough of outer end cap are arranged on and the vertical curve position at angle of crossing the outer end cap center; Oil drainage hole on the upper box is certain distance at the bottom of the Vertical direction distance second oil sump pond, can guarantee that the lubricant oil that gathers in second oil sump gets into outboard bearing and is lubricated.Lubricant oil unnecessary in second oil sump is back to lower box along oil drainage hole.
As a kind of instance, said driving gear shaft one end is equipped with two bearings.
By said structure; When adopting when making lubricant oil on the gear teeth flow directly into the bearing lubrication mode in the bearing through the extruding between gear tooth; Can flow to two outermost bearings in the bearing in order to ensure enough lubricant oil, the present invention provides a kind of special lubricating structure to the outermost bearing through adding oil sump and oil circuit on former lubricating system basis.This lubricating structure working principle is following:
As shown in Figure 2, the pinion shaft right side is by two bearings, during gear-box work; The gear that lubricant oil is rotated takes on the gear-box inwall, and the leakproof oil gluten plate at casing top imports the oil on the inwall in the right side oil sump that is provided with, and on casing and right side outer end cap, processes oil circuit; Oil in the oil sump of right side is imported the outermost bearing; Simultaneously, the oil-discharge trough of oil-discharge trough on the casing and right side outer end cap all is arranged on and the vertical curve position at angle of crossing the outer end cap center, and oil drainage hole is certain distance at the bottom of the Vertical direction distance second oil sump pond; Make the certain oil storage space of formation between outer end cap and outboard bearing, guarantee that enough oil masses get into the outermost bearing.
Like this,, also have special oil circuit that the lubricant oil that gets into right side outermost bearing is replenished, make it fully lubricated except making lubricant oil get into right side outermost bearing through gear teeth extruding.
Compared with prior art; The invention has the beneficial effects as follows: the present invention is applied in rail traffic vehicles gear-box main drive gear bearing and lubricates; It is lubricated that bearing is obtained fully, particularly for gear shaft one side by two bearings, two bearings only depend on the gear tooth extruding lubricant oil to be brought into the lubricating system of outermost bearing; It is lubricated fully that the present invention has obtained outermost bearing, the working life of having improved bearing.
Below in conjunction with accompanying drawing and embodiment the present invention is done further elaboration.
Description of drawings
Fig. 1 is the lubricating structure schematic representation of existing outermost 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 according to the invention;
Fig. 4 is the oil circuit figure of upper box according to the invention;
Fig. 5 is the oil circuit figure in the outer end cap according to the invention;
Fig. 6 is the A-A sectional view of Fig. 5.
In the drawings
The 1-driving gear shaft; The 2-upper box; The 3-cover plate; 4-leakproof oil gluten plate; The 5-boss;
The 6-oil inlet hole; 7, the 8-oil-feed tank; The 9-outer end cap; 10, the 11-oil-discharge trough;
The 12-oil drainage hole; The 13-lower box; 14-first oil sump; 15-second oil sump.
Embodiment
A kind of city rail traffic vehicle is with gear-box driving gear shaft bearing lubrication structure, and is as shown in Figure 2, and driving gear shaft 1 is positioned on the upper box 2, and driving gear shaft 1 right side is by two bearings, and the left side is by a bearings.Form lubricating structure by the oil-feed tank 8 on the oil inlet hole 6 on upper box 2, cover plate 3, leakproof oil gluten plate 4, outer end cap 9, first oil sump 14, the upper box 2 and oil-feed tank 7, the outer end cap 9, the oil-discharge trough 10 on the outer end cap 9, oil-discharge trough 11 and the oil drainage hole 12 on the upper box 2 to right side outermost bearing.
During gear-box work, lubricant oil can be splashed on the casing roof, and the leakproof oil gluten plate 4 that is arranged on upper box 2 inwalls can import first oil sump 14 with the lubricant oil that is splashed on the casing roof.
As shown in Figure 3, said upper box 2 is provided with boss 5, on the boss 5 tapped hole is arranged, and through threaded connector cover plate 3 is connected on the boss 5, forms first oil sump 14.
The in-line that oil-feed tank 8 on oil inlet hole 6 on the said upper box 2, oil-feed tank 7 and the outer end cap 9 is formed can import the oil in first oil sump 14 in the outermost bearing.Like Fig. 4, Fig. 5 and shown in Figure 6; Oil-discharge trough 11 on the upper box 2 is arranged on and the vertical curve position at angle of crossing the outer end cap center; Oil-discharge trough 10 on the outer end cap 9 also is arranged on the position that becomes same angle with the vertical curve of crossing the outer end cap center; Because oil-discharge trough 11, oil-discharge trough 10 and oil drainage hole 12 be not in extreme lower position; As shown in Figure 4, the lubricant oil that in formation second oil sump 15, the second oil sumps 15 between upper box 2, outer end cap 9 and outboard bearing outer ring, gathers can guarantee that enough lubricant oil gets into the outermost bearing.
Oil drainage hole 12 communicates with oil-discharge trough 11 on the upper box 2, and the inwall of lubricant oil unnecessary in second oil sump 15 along upper box 2 and lower box 13 imported in the oil sump of lower box 13.
The content that the foregoing description is illustrated is to be understood that to these embodiments and only is used to be illustrated more clearly in the present invention; And be not used in the restriction scope of the present invention; After having read the present invention, those skilled in the art all fall within the application's accompanying claims institute restricted portion to the modification of the various equivalent form of values of the present invention.

Claims (10)

1. a city rail traffic vehicle is with gear-box driving gear shaft bearing lubrication structure; At driving gear shaft (1) one end a plurality of bearings are housed, this driving gear shaft (1) is contained on the upper box (2), and said upper box (2) side is connected with outer end cap (9); Its underpart is connected with lower box (13); It is characterized in that, on upper box (2) inwall and the top position that is positioned at bearing be provided with first oil sump (14), this first oil sump (14) with between the bearing in the outside, be communicated with through oil inlet passage.
2. city rail traffic vehicle according to claim 1 is characterized in that with gear-box driving gear shaft bearing lubrication structure, between outer end cap (9) inwall and outboard bearing outer ring, is provided with second oil sump (15), and this second oil sump (15) is communicated with drainback passage.
3. city rail traffic vehicle according to claim 1 and 2 is with gear-box driving gear shaft bearing lubrication structure; It is characterized in that; On said upper box (2) inwall cover plate (3) is housed, forms said first oil sump (14) between said cover plate (3) and upper box (2) inwall.
4. city rail traffic vehicle according to claim 3 is characterized in that with gear-box driving gear shaft bearing lubrication structure, links to each other through boss (5) between said cover plate (3) and upper box (2) inwall.
5. city rail traffic vehicle according to claim 1 and 2 is characterized in that with gear-box driving gear shaft bearing lubrication structure, has oil inlet hole (6) and oil-feed tank (7) on the said upper box (2), and said outer end cap (9) top has oil-feed tank (8); The oil-feed tank (7) of said oil inlet hole (6), upper box (2) and the oil-feed tank (8) of outer end cap (9) are communicated with the formation oil inlet passage.
6. city rail traffic vehicle according to claim 1 and 2 is characterized in that with gear-box driving gear shaft bearing lubrication structure, said outer end cap (9) inwall and between the outer ring of the bearing in the outside, form second oil sump (15).
7. city rail traffic vehicle according to claim 1 and 2 is characterized in that with gear-box driving gear shaft bearing lubrication structure said upper box (2) bottom has oil drainage hole (12) and oil-discharge trough (11), and said outer end cap (9) bottom has oil-discharge trough (10); The oil-discharge trough (11) of said oil drainage hole (12), upper box (2), the oil-discharge trough (10) of outer end cap (9) are communicated with the formation drainback passage.
8. city rail traffic vehicle according to claim 1 and 2 is characterized in that with gear-box driving gear shaft bearing lubrication structure the inwall on said upper box (2) top is provided with leakproof oil gluten plate (4).
9. city rail traffic vehicle according to claim 1 and 2 is characterized in that with gear-box driving gear shaft bearing lubrication structure, and the level height of the oil drainage hole (12) of said upper box (2) is high at the bottom of than the pond of second oil sump (15).
10. city rail traffic vehicle according to claim 1 is characterized in that with gear-box driving gear shaft bearing lubrication structure said driving gear shaft (1) one end is equipped with two bearings.
CN201110387758.1A 2011-11-29 2011-11-29 Bearing lubricating structure of driving gear shaft of gear box for urban rail traffic vehicle Active CN102494115B (en)

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CN102494115B CN102494115B (en) 2017-05-17

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103062382A (en) * 2013-01-25 2013-04-24 南车株洲电力机车有限公司 Gearbox
CN103195912A (en) * 2013-04-12 2013-07-10 南京高速齿轮制造有限公司 Gear box of rail transit vehicle
CN103423426A (en) * 2013-08-29 2013-12-04 沃德(天津)传动有限公司 Speed reducer and lubricating structure thereof
CN104500700A (en) * 2014-12-17 2015-04-08 常州市瑞泰工程机械有限公司 Streetcar gear transmission device
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
CN104633061A (en) * 2014-12-17 2015-05-20 常州市瑞泰工程机械有限公司 Gear case body for tramcar
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
CN106015526A (en) * 2016-07-18 2016-10-12 来安县科来兴实业有限责任公司 Novel high-speed motor train unit gear box
TWI664363B (en) * 2016-09-26 2019-07-01 日商椿本鏈條股份有限公司 Gear device
CN110805619A (en) * 2019-10-30 2020-02-18 柳州铁道职业技术学院 Gear box driving gear shaft bearing lubricating structure for urban rail transit vehicle

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Publication number Priority date Publication date Assignee Title
US2240118A (en) * 1937-10-19 1941-04-29 Mack Mfg Corp Oiling device for driving pinion bearings
CN2926665Y (en) * 2006-07-31 2007-07-25 中国南车集团株洲电力机车研究所 Single-stage gear reducer for automobile
CN101413578A (en) * 2008-11-04 2009-04-22 常州市瑞泰工程机械有限公司 Combined lubrication gear box
CN101788022A (en) * 2006-04-06 2010-07-28 费尔菲尔德制造公司 The bearing-lubricating device that is used for the bearing of lubricated back shaft
CN201679944U (en) * 2009-11-19 2010-12-22 杭州杰牌传动科技有限公司 Bearing lubricant circuit of input axis of rectangular axis gearbox
CN101956812A (en) * 2010-09-09 2011-01-26 江苏泰隆减速机股份有限公司 Novel bearing lubrication mechanism of large gear box welding box body
CN201953960U (en) * 2010-12-31 2011-08-31 杭州杰牌传动科技有限公司 Novel end cover of triple reduction gear
CN202392093U (en) * 2011-11-29 2012-08-22 南车株洲电力机车有限公司 Bearing lubricating structure for drive gear shaft of gear case for urban rail transit vehicles

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2240118A (en) * 1937-10-19 1941-04-29 Mack Mfg Corp Oiling device for driving pinion bearings
CN101788022A (en) * 2006-04-06 2010-07-28 费尔菲尔德制造公司 The bearing-lubricating device that is used for the bearing of lubricated back shaft
CN2926665Y (en) * 2006-07-31 2007-07-25 中国南车集团株洲电力机车研究所 Single-stage gear reducer for automobile
CN101413578A (en) * 2008-11-04 2009-04-22 常州市瑞泰工程机械有限公司 Combined lubrication gear box
CN201679944U (en) * 2009-11-19 2010-12-22 杭州杰牌传动科技有限公司 Bearing lubricant circuit of input axis of rectangular axis gearbox
CN101956812A (en) * 2010-09-09 2011-01-26 江苏泰隆减速机股份有限公司 Novel bearing lubrication mechanism of large gear box welding box body
CN201953960U (en) * 2010-12-31 2011-08-31 杭州杰牌传动科技有限公司 Novel end cover of triple reduction gear
CN202392093U (en) * 2011-11-29 2012-08-22 南车株洲电力机车有限公司 Bearing lubricating structure for drive gear shaft of gear case for urban rail transit vehicles

Cited By (13)

* Cited by examiner, † Cited by third party
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
CN103062382A (en) * 2013-01-25 2013-04-24 南车株洲电力机车有限公司 Gearbox
CN103195912A (en) * 2013-04-12 2013-07-10 南京高速齿轮制造有限公司 Gear box of rail transit vehicle
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
CN104500700A (en) * 2014-12-17 2015-04-08 常州市瑞泰工程机械有限公司 Streetcar gear transmission device
CN104633061A (en) * 2014-12-17 2015-05-20 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
CN106015526A (en) * 2016-07-18 2016-10-12 来安县科来兴实业有限责任公司 Novel high-speed motor train unit gear box
TWI664363B (en) * 2016-09-26 2019-07-01 日商椿本鏈條股份有限公司 Gear device
CN110805619A (en) * 2019-10-30 2020-02-18 柳州铁道职业技术学院 Gear box driving gear shaft bearing lubricating structure for urban rail transit vehicle
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

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