CN103953721B - A kind of power transmission shaft dynamic sealing device - Google Patents
A kind of power transmission shaft dynamic sealing device Download PDFInfo
- Publication number
- CN103953721B CN103953721B CN201410125827.5A CN201410125827A CN103953721B CN 103953721 B CN103953721 B CN 103953721B CN 201410125827 A CN201410125827 A CN 201410125827A CN 103953721 B CN103953721 B CN 103953721B
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- CN
- China
- Prior art keywords
- oil return
- power transmission
- transmission shaft
- gap
- spill port
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0467—Elements of gearings to be lubricated, cooled or heated
- F16H57/0469—Bearings or seals
- F16H57/0471—Bearing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0467—Elements of gearings to be lubricated, cooled or heated
- F16H57/0469—Bearings or seals
- F16H57/0472—Seals
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
- General Details Of Gearings (AREA)
- Sealing Of Bearings (AREA)
Abstract
The invention discloses a kind of power transmission shaft dynamic sealing device, comprise bearing inner race back-up ring, seal cover, gland and oil return pipe, bearing inner race retainer-ring press mounting is on power transmission shaft, between seal cover and power transmission shaft, form the first gap, between the left side of bearing inner race back-up ring and seal cover, form the second gap, on seal cover, be provided with the first spill port, on gland, be provided with the second spill port, oil return pipe is divided into upper oil return line and lower oil return line by dividing plate, the first spill port is communicated with the first gap with upper oil return line, the second spill port is communicated with the second gap with lower oil return line. Power transmission shaft driven gear rotates, in the time that lubricating oil enters from the first gap, a part enters into the first spill port, realize oil return through upper oil return line, when the first spill port oil return scarce capacity, parts of lubricating oil enters into the second gap, enter into lower oil return line through the second spill port and realize oil return, thereby realize shunting oil return, can not cause oil leakage because lubricating oil return has some setbacks, thereby avoided the leakage of oil of motor mudhole.
Description
Technical field
The present invention relates to power transmission shaft dynamic sealing technology field, relate in particular to a kind of power transmission shaft dynamic sealing device.
Background technology
The difference that engine truck drive unit lubrication system is arranged causes engine truck driving device motorDriving end hermetically-sealed construction is varied, for the locomotive of motor-driven end bearing and driving gear independent lubricatingBogie drive system, its traditional motor-driven end hermetically-sealed construction is simpler, and in realityThe motor mudhole oil leakage phenomenon that exists in service, along with the novel locomotive motor speed of subsequent design is furtherRaising, the motor mudhole oil leakage phenomenon that adopts traditional motor-driven end hermetically-sealed construction to cause is tight all the moreHeavy.
Therefore, how providing a kind of power transmission shaft dynamic sealing device, to avoid the leakage of oil of motor mudhole, is orderThe technical problem that front those skilled in the art are urgently to be resolved hurrily.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of power transmission shaft dynamic sealing device, to avoid motorMudhole leakage of oil.
In order to achieve the above object, the invention provides following technical scheme:
A kind of power transmission shaft dynamic sealing device, comprises bearing inner race back-up ring, seal cover, gland and oil return pipe,Wherein, described bearing inner race retainer-ring press mounting, on power transmission shaft, forms between described seal cover and described power transmission shaftThe first gap, forms the second gap between the left side of described bearing inner race back-up ring and described seal cover, described closeIn capping, be provided with the first spill port, be provided with the second spill port on described gland, described oil return pipe passes throughDividing plate is divided into oil return line and lower oil return line, and described the first spill port is by described the first gap and described last timeOil circuit is communicated with, and described the second spill port is communicated with described the second gap with described lower oil return line.
Preferably, above-mentioned the first spill port comprises two sub-drainback passages.
Preferably, the bottom of above-mentioned gland contacts with gear-box eckband static seal, the bottom of described oil return pipeHave first fold crook, being connected of described gland and described gear-box eckband dodged out in described first fold crookPlace.
Preferably, the top of above-mentioned oil return pipe has the second bending part, and described the second bending part is dodged out positionGear on described power transmission shaft.
Preferably, above-mentioned seal cover is connected by a circle rivet with described gland.
Preferably, above-mentioned oil return pipe is connected by rivet with described gland.
Preferably, on above-mentioned gland, being provided with the U-shaped oil trap of twice is communicated with described the second spill port.
Power transmission shaft dynamic sealing device provided by the invention, comprise bearing inner race back-up ring, seal cover, gland andOil return pipe, wherein, described bearing inner race retainer-ring press mounting on power transmission shaft, described seal cover and described transmissionBetween centers forms the first gap, between the left side of described bearing inner race back-up ring and described seal cover, forms the second gap,On described seal cover, be provided with the first spill port, on described gland, be provided with the second spill port, described oil returnPipe is divided into upper oil return line and lower oil return line by dividing plate, and described the first spill port is by described the first gap and instituteState oil return line and be communicated with, described the second spill port is communicated with described the second gap with described lower oil return line.
When use, power transmission shaft driven gear rotates, in the time having lubricating oil to enter from the first gap, and oneDivide and enter into the first spill port, then realize oil return through upper oil return line, the first spill port oil return ability is notWhen foot, parts of lubricating oil enters into the second gap, then enters into lower oil return line through the second spill portIn realize oil return, thereby realized shunting oil return, can not cause lubricating oil to be let out because lubricating oil return has some setbacksReveal, thereby avoid the leakage of oil of motor mudhole.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below will be to realityThe accompanying drawing of executing required use in example or description of the Prior Art is briefly described, apparently, belowAccompanying drawing in description is some embodiments of the present invention, for those of ordinary skill in the art, notPay under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The sectional structure schematic diagram of the power transmission shaft dynamic sealing device that Fig. 1 provides for the embodiment of the present invention.
In upper Fig. 1:
Bearing inner race back-up ring 1, power transmission shaft 2, gland 3, the second spill port 31, U-shaped oil trap 32, closeCapping 4, the first spill port 41, oil return pipe 5, upper oil return line 51, lower oil return line 52, first fold crook53, the second bending part 54, gear 6, gear-box eckband 7, the first gap 8, the second gap 9, motorMudhole 10.
Detailed description of the invention
The embodiment of the present invention provides a kind of power transmission shaft dynamic sealing device, to avoid the leakage of oil of motor mudhole.
For making object, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with thisAccompanying drawing in bright embodiment, is clearly and completely described the technical scheme in the embodiment of the present invention,Obviously, described embodiment is the present invention's part embodiment, instead of whole embodiment. Based onEmbodiment in the present invention, those of ordinary skill in the art obtain not making under creative work prerequisiteThe every other embodiment obtaining, belongs to the scope of protection of the invention.
Please refer to Fig. 1, Fig. 1 shows for the sectional structure of the power transmission shaft dynamic sealing device that the embodiment of the present invention providesIntention.
The power transmission shaft dynamic sealing device that the embodiment of the present invention provides, comprise bearing inner race back-up ring 1, seal cover 4,Gland 3 and oil return pipe 5, wherein, bearing inner race back-up ring 1 is fitted on power transmission shaft 2, seal cover 4 and biography2 of moving axis form the first gap 8, form the second gap between the left side of bearing inner race back-up ring 1 and seal cover 49, on seal cover 4, be provided with the first spill port 41, on gland 3, be provided with the second spill port 31, oil returnPipe 5 is divided into upper oil return line 51 and lower oil return line 52, the first spill ports 41 by the first gap 8 by dividing plateBe communicated with upper oil return line 51, the second spill port 31 is communicated with the second gap 9 with lower oil return line 52.
When use, power transmission shaft 2 driven gears 6 rotate, in the time having lubricating oil to enter from the first gap 8,A part enters into the first spill port 41, then in upper oil return line 51, realizes oil return, the first oil returnWhen hole oil return scarce capacity, parts of lubricating oil enters into the second gap 9, then through the second spill port31 enter into lower oil return line 52 realizes oil return, thereby has realized shunting oil return, and oil return better effects if is returnedSpeed oil is more unobstructed, can not cause oil leakage because lubricating oil return has some setbacks, thereby avoid electricity10 leakage of oils of machine mudhole.
In order to improve oil return effect, the first spill port 41 comprises two sub-drainback passages, can be from firstIn gap 8, obtain more lubricating oil.
Wherein, the bottom of gland 3 contacts with gear-box eckband 7 static seals, and the bottom of oil return pipe 5 hasFirst fold crook 53, the junction of gland 3 and gear-box eckband 7 is dodged out in first fold crook 53. RefluxPipe bending design avoids gland 3 and the gluing in gear-box eckband 7 installation processes to stop up, and has assembling sideJust feature. Meanwhile, the top of oil return pipe 5 also has the second bending part 54, the second bending parts 54 and dodgesOpen the gear 6 being positioned on power transmission shaft 2, can not interfere with the normal work of gear 6.
Concrete, seal cover 4 is connected by a circle rivet with gland 3, can improve bonding strength, and protectCard sealing effectiveness. Oil return pipe 5 also can be connected by rivet with gland 3, easy to assembly.
Concrete, on gland 3, be provided with the U-shaped oil trap 32 of twice and be communicated with the second spill port 31, energyEnsure that lubricating oil all refluxes, thereby avoided the leakage of oil of motor mudhole 10.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field can be realized or useThe present invention. To be aobvious and easy for those skilled in the art to the multiple amendment of these embodimentSee, General Principle as defined herein can be in the situation that not departing from the spirit or scope of the present invention,Realize in other embodiments. Therefore, the present invention will can not be restricted to these embodiment shown in this article,But to meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (7)
1. a power transmission shaft dynamic sealing device, is characterized in that, comprises bearing inner race back-up ring, sealingLid, gland and oil return pipe,
Wherein, described bearing inner race retainer-ring press mounting is on power transmission shaft, between described seal cover and described power transmission shaftForm the first gap, between the left side of described bearing inner race back-up ring and described seal cover, form the second gap,
On described seal cover, be provided with the first spill port, on described gland, be provided with the second spill port, described inOil return pipe is divided into upper oil return line and lower oil return line by dividing plate,
Described the first spill port is communicated with described the first gap with described upper oil return line, described the second spill portDescribed the second gap is communicated with described lower oil return line.
2. power transmission shaft dynamic sealing device according to claim 1, is characterized in that, described firstSpill port comprises two sub-drainback passages.
3. power transmission shaft dynamic sealing device according to claim 1, is characterized in that, described glandBottom contact with gear-box eckband static seal, the bottom of described oil return pipe has first fold crook, described inThe junction of described gland and described gear-box eckband is dodged out in first fold crook.
4. power transmission shaft dynamic sealing device according to claim 1, is characterized in that, described oil returnThe top of pipe has the second bending part, and described the second bending part is dodged and opened the tooth being positioned on described power transmission shaftWheel.
5. power transmission shaft dynamic sealing device according to claim 1, is characterized in that, described sealingLid is connected by a circle rivet with described gland.
6. power transmission shaft dynamic sealing device according to claim 1, is characterized in that, described oil returnPipe is connected by rivet with described gland.
7. power transmission shaft dynamic sealing device according to claim 1, is characterized in that, described glandOn be provided with the U-shaped oil trap of twice and be communicated with described the second spill port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410125827.5A CN103953721B (en) | 2014-03-31 | 2014-03-31 | A kind of power transmission shaft dynamic sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410125827.5A CN103953721B (en) | 2014-03-31 | 2014-03-31 | A kind of power transmission shaft dynamic sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103953721A CN103953721A (en) | 2014-07-30 |
| CN103953721B true CN103953721B (en) | 2016-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410125827.5A Active CN103953721B (en) | 2014-03-31 | 2014-03-31 | A kind of power transmission shaft dynamic sealing device |
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| CN (1) | CN103953721B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455347A (en) * | 2014-11-28 | 2015-03-25 | 苏州市吴中区大陆电子设备厂 | Bearing sealing device |
| CN108150615B (en) * | 2018-02-01 | 2020-06-30 | 西安航天动力研究所 | Submerged planetary reducer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691783A (en) * | 2012-06-06 | 2012-09-26 | 浙江通力重型齿轮股份有限公司 | Planet bearing lubricating device in gear box |
| CN202833989U (en) * | 2012-07-27 | 2013-03-27 | 江苏泰隆减速机股份有限公司 | Sealing device for transmission shaft |
| CN203796911U (en) * | 2014-03-31 | 2014-08-27 | 南车株洲电力机车有限公司 | Dynamic sealing device for transmission shaft |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02173458A (en) * | 1988-12-23 | 1990-07-04 | Aisin Aw Co Ltd | Shaft structure in automatic transmission |
| US6338285B2 (en) * | 1996-06-17 | 2002-01-15 | Nsk Ltd. | Feed screw device |
-
2014
- 2014-03-31 CN CN201410125827.5A patent/CN103953721B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691783A (en) * | 2012-06-06 | 2012-09-26 | 浙江通力重型齿轮股份有限公司 | Planet bearing lubricating device in gear box |
| CN202833989U (en) * | 2012-07-27 | 2013-03-27 | 江苏泰隆减速机股份有限公司 | Sealing device for transmission shaft |
| CN203796911U (en) * | 2014-03-31 | 2014-08-27 | 南车株洲电力机车有限公司 | Dynamic sealing device for transmission shaft |
Also Published As
| Publication number | Publication date |
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| CN103953721A (en) | 2014-07-30 |
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