CN109538744A - A kind of electric vehicle input shaft spline self-lubricating device - Google Patents
A kind of electric vehicle input shaft spline self-lubricating device Download PDFInfo
- Publication number
- CN109538744A CN109538744A CN201811558681.8A CN201811558681A CN109538744A CN 109538744 A CN109538744 A CN 109538744A CN 201811558681 A CN201811558681 A CN 201811558681A CN 109538744 A CN109538744 A CN 109538744A
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- CN
- China
- Prior art keywords
- input shaft
- oil
- transmission input
- motor output
- spline
- 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.)
- Pending
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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
- F16H57/0412—Cooling or heating; Control of temperature
- F16H57/0415—Air cooling or ventilation; Heat exchangers; Thermal insulations
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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
- F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
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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
- F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
- F16H57/0441—Arrangements of pumps
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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
- F16H2057/02086—Measures for reducing size of gearbox, e.g. for creating a more compact transmission casing
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
A kind of electric vehicle input shaft spline self-lubricating device of the present invention, belong to electric powered motor transmission technique field, it include: motor output shaft, electric engine oil seal bushing, dynamo oil sealing, motor output shaft oil sealing layer, front motor casing, gearbox rear housing body, oil pump case, conical bearing, oil pump fixing bolt, Swing line oil pump, transmission input shaft, transmission input shaft oil sealing layer, motor output shaft, electric engine oil seal bushing, dynamo oil sealing are arranged inside front motor casing；Electric vehicle input shaft spline self-lubricating device of the present invention, it is connected by the external splines of motor output shaft with transmission input shaft internal spline, by gearbox input in internal Oil Guide cavity convey lubricating oil, the heat that the middle spline connection that runs at high speed generates, the damage for avoiding spline from generating by high temperature can be taken away.
Description
Technical field
The invention belongs to electric powered motor transmission technique field more particularly to a kind of electric vehicle input shaft spline self-lubricatings
Device.
Background technique
Since countries in the world gradually increase environmental protection attention degree, new energy electric motor vehicle is increasingly by national governments
With the attention of enterprise.With the fast development of science and technology, the revolving speed of motor is also higher and higher, and several hundred go to from originally shows
Up to ten thousand turns, while revolving speed is higher, leads to the problem of more, no matter from structure, material and processing method will match high turn
The performance requirement of speed.
The motor input shaft of new energy electric motor vehicle in high-speed rotation process, can generate a large amount of heat, input shaft spline
At high operating temperatures longtime running be easy to cause abrasion, damage of bursting apart, lubrication system in the prior art generallys use closed
Structure is infiltrated, in the process of running due to the intrusion of air and moisture, will lead to the benefit that lubricating oil volatilization lacks subsequent lubricating oil
It fills, therefore spline can generate corrosion and abrasion, influences whole service life.
Meanwhile motor output shaft is internal spline in traditional vehicle, transmission input shaft is external splines, and this configuration mode is unfavorable
It is lubricated in spline structure, adjustment is having also been made in the present invention on spline configuration mode.
Such as Chinese Patent Application No. are as follows: a kind of speed reducer input terminal spline of the patent disclosure of CN201521040678.9 from
Lubricating arrangement, including cabinet, planet carrier assembly, the input terminal of the planet carrier assembly with external splines on motor shaft equipped in being adapted to
Spline, cabinet end are connected on electric machine casing, and seal member, cabinet and planet carrier assembly are equipped between cabinet end and shell
Between outer chamber be connected to the inner chamber body where the internal spline of planet carrier assembly input terminal, be additionally provided between shell and motor shaft
Prevent lubricating oil in inner chamber body from entering the sealing element in motor.The self-lubricating device will make outer chamber and planet carrier assembly in cabinet
Inner chamber body conducting where input terminal internal spline, but its spline for being not directly adaptable to use New energy electric vehicle motor input shaft
Lubrication, also, lubricant effect is bad.
For another example Chinese Patent Application No. are as follows: it is defeated that the utility model patent of CN201521040678.9 discloses a kind of speed reducer
Enter to hold spline self-lubricating device, including cabinet, planet carrier assembly, the input terminal of the planet carrier assembly is equipped with and flower outer on motor shaft
The internal spline of key adaptation, cabinet end is connected on electric machine casing, is equipped with seal member between cabinet end and shell, cabinet and
Outer chamber between planet carrier assembly is connected to the inner chamber body where the internal spline of planet carrier assembly input terminal, shell and motor shaft
Between be additionally provided with and prevent lubricating oil in inner chamber body from entering the sealing element in motor.The self-lubricating device will make in cabinet outer chamber with
Where planet carrier assembly input terminal internal spline inner chamber body conducting, while between motor shaft and electric machine casing by sealing element every
From the lubricating oil for enabling outer chamber to inject can smoothly enter into inner chamber body and form closed space, can be to planet carrier assembly input terminal
Internal spline and motor shaft external splines sufficiently recycle lubrication, reduce the abrasion of spline group, but its structure is relative complex, mainly for
With planet carrier structure, it is not directly adaptable to use the self-lubricating of spline connection structure.
Present invention employs the lubricating systems of New-type electric machine output shaft and transmission input shaft, by modifying internal structure,
Spline lubrication oil duct is designed, so that lubricating oil inside gearbox is lubricated motor and gearbox spline, motor is avoided to transport for a long time
The high temperature damage connection spline generated in turning, greatly reduces maintenance cost, extends the use of new-energy automobile power assembly
Service life.
Summary of the invention
In view of the deficiencies of the prior art, it is an object of the present invention to provide a kind of electric vehicle input shaft spline self-lubricating device,
Electric vehicle input shaft spline is lubricated.
The electric vehicle input shaft spline self-lubricating device, comprising: motor output shaft, electric engine oil seal bushing, electric engine oil seal
Layer, motor output shaft oil sealing layer, front motor casing, gearbox rear housing body, oil pump case, conical bearing, oil pump fixing bolt, pendulum
Line oil pump, transmission input shaft, transmission input shaft oil sealing layer, motor output shaft, electric engine oil seal bushing, the setting of dynamo oil sealing
Inside front motor casing, motor output shaft is stepped, and electric engine oil seal bushing interference is mounted on the left of motor output shaft, motor
Oil sealing layer is arranged between electric engine oil seal bushing and front motor casing, and motor output shaft is connect with transmission input shaft, gearbox
Back casing is connect with front motor casing, and Swing line oil pump is fixed on gearbox rear housing body by oil pump case and oil pump fixing bolt,
Using positioning pin connection, transmission input shaft oil sealing layer is arranged in transmission input shaft and oil for Swing line oil pump and transmission input shaft
Between pump case；Transmission input shaft right end connects gearbox rear end gear, passes through cone axis on the outside of transmission input shaft right end
Hold connection gearbox rear housing body；The Oil Guide cavity of left and right connection is equipped with inside transmission input shaft.
Further, external splines is arranged in motor output shaft, and internal spline, the outer flower of motor output shaft is arranged in transmission input shaft
The connection of the internal spline of key and transmission input shaft.
Further, the oil Pump rotor of Swing line oil pump is equipped with a rectangular straight slot, and positioning pin is arranged in rectangular straight slot
Portion.
Further, the internal spline of transmission input shaft, right side are connected on the left of the Oil Guide cavity inside transmission input shaft
Gearbox rear end gear is connected, the side of transmission input shaft is additionally provided with oil hole, and connection Oil Guide cavity is distinguished at oil hole both ends
With Swing line oil pump.
Further, the stepped setting of Oil Guide cavity inside transmission input shaft.
Further, dynamo oil sealing, motor output shaft oil sealing layer use tc type outside framework oil seal layer, tc type outside framework oil seal layer
It is made of polytetrafluoroethylene (PTFE).
The beneficial effects of the present invention are:
1, electric vehicle input shaft spline self-lubricating device of the present invention, it is simple and compact for structure, reasonably adjust gearbox
Integral layout reduces volume, reduces costs.
2, electric vehicle input shaft spline self-lubricating device of the present invention, passes through the external splines and gearbox of motor output shaft
The connection of input shaft internal spline, lubricating oil can take away the heat that the middle spline connection that runs at high speed generates in cabinet, avoid spline because
The damage that high temperature generates.
3, electric vehicle input shaft spline self-lubricating device of the present invention is added oil sealing in input shaft front end, can be prevented
Gear-box lubricating oil leakage, causes the damage of power assembly.
Detailed description of the invention
Fig. 1 is the cross-sectional view of electric vehicle input shaft spline self-lubricating device of the present invention.
In figure: 1- motor output shaft, 2- electric engine oil seal bushing, 3- dynamo oil sealing, 4- motor output shaft oil sealing layer, 5- electricity
Machine procapsid, 6- gearbox rear housing body, 7- oil pump case, 8- conical bearing, 9- oil pump fixing bolt, 10- Swing line oil pump, 11-
Transmission input shaft, 12- transmission input shaft oil sealing layer, 13- oil hole, 14- gearbox rear end gear, 15- positioning pin, 16-
Oil Guide cavity.
Specific embodiment
Below according to Figure of description, the present invention will be further described.
As shown in Figure 1, the electric vehicle input shaft spline self-lubricating device, comprising: motor output shaft 1, electric engine oil seal lining
Cover 2, dynamo oil sealing 3, motor output shaft oil sealing layer 4, front motor casing 5, gearbox rear housing body 6, oil pump case 7, cone axis
Hold 8, oil pump fixing bolt 9, Swing line oil pump 10, transmission input shaft 11, transmission input shaft oil sealing layer 12, motor output shaft 1,
Electric engine oil seal bushing 2, dynamo oil sealing 3 are arranged inside front motor casing 5, and motor output shaft 1 is stepped, electric engine oil seal lining
It covering 2 interference and is mounted on 1 left side of motor output shaft, dynamo oil sealing 3 is arranged between electric engine oil seal bushing 2 and front motor casing 5,
Motor output shaft 1 is connect with transmission input shaft 11, and gearbox rear housing body 6 is connect with front motor casing 5, oil pump case 7 and oil
Swing line oil pump 10 is fixed on gearbox rear housing body 6 by pump fixing bolt 9, and Swing line oil pump 10 and transmission input shaft 11 are using fixed
Position pin 15 connects, and transmission input shaft oil sealing layer 12 is arranged between transmission input shaft 11 and oil pump case 7；Gearbox input
11 right end of axis connects gearbox rear end gear 14, after connecting gearbox by conical bearing 8 on the outside of 11 right end of transmission input shaft
Shell 6；The Oil Guide cavity 16 of left and right connection is equipped with inside transmission input shaft 11.
Further, external splines (not shown) is arranged in motor output shaft 1, and internal spline is arranged in transmission input shaft 11
The external splines of (not shown), motor output shaft 1 is connect with the internal spline of transmission input shaft 11.
Further, the oil Pump rotor (being not marked in figure) of Swing line oil pump 10 is equipped with a rectangular straight slot and (does not show in figure
Out), positioning pin 15 is arranged inside rectangular straight slot.
Further, the interior flower of transmission input shaft 11 is connected on the left of the Oil Guide cavity 16 inside transmission input shaft 11
Key, right side connect gearbox rear end gear 14, and the side of transmission input shaft 11 is additionally provided with oil hole 13,13 both ends of oil hole point
Other connection Oil Guide cavity 16 and Swing line oil pump 10.It can be effectively to the outer flower of motor output shaft 1 by setting Oil Guide cavity 16
The internal spline of key and transmission input shaft 11 carries out Oil Guide lubrication, cooling, reduces the damage that cooperation is generated by high temperature.
Further, the stepped setting of Oil Guide cavity 16 inside transmission input shaft 11.
Further, dynamo oil sealing 3, motor output shaft oil sealing layer 4 use tc type outside framework oil seal layer, tc type outside framework oil seal
Layer is made of polytetrafluoroethylene (PTFE).
In electric vehicle operational process, the Oil Guide that is pumped into lubricating oil by Swing line oil pump 10 inside transmission input shaft 11
Cavity 16, lubricating oil on the one hand flow to the left, by Oil Guide cavity 16 flow to motor output shaft 1 external splines and gearbox it is defeated
Enter the junction of the internal spline of axis 11, on the other hand flows to the knot of transmission input shaft 11 Yu gearbox rear end gear 14 to the right
At conjunction, while it being lubricated cooling, the internal spline of the external splines and transmission input shaft 11 that avoid motor output shaft 1 is because of high temperature
The damage of generation, while increasing the combination fluency of transmission input shaft 11 and gearbox rear end gear 14, promote working performance.
The present invention is not limited to above-mentioned embodiments, without departing from the essence of the present invention, art technology
Any deformation, improvement, the replacement that personnel are contemplated that each fall within protection scope of the present invention.
Claims (6)
1. a kind of electric vehicle input shaft spline self-lubricating device characterized by comprising motor output shaft, electric engine oil seal bushing,
Dynamo oil sealing, motor output shaft oil sealing layer, front motor casing, gearbox rear housing body, oil pump case, conical bearing, oil pump are solid
Determine bolt, Swing line oil pump, transmission input shaft, transmission input shaft oil sealing layer, motor output shaft, electric engine oil seal bushing, motor
Oil sealing layer is arranged inside front motor casing, and motor output shaft is stepped, and electric engine oil seal bushing interference is mounted on motor output
On the left of axis, dynamo oil sealing is arranged between electric engine oil seal bushing and front motor casing, motor output shaft and transmission input shaft
Connection, gearbox rear housing body are connect with front motor casing, and Swing line oil pump is fixed on speed change with oil pump fixing bolt by oil pump case
On case back casing, using positioning pin connection, transmission input shaft oil sealing layer is arranged in speed change for Swing line oil pump and transmission input shaft
Between case input shaft and oil pump case；Transmission input shaft right end connects gearbox rear end gear, outside transmission input shaft right end
Side connects gearbox rear housing body by conical bearing；The Oil Guide cavity of left and right connection is equipped with inside transmission input shaft.
2. a kind of electric vehicle input shaft spline self-lubricating device according to claim 1, which is characterized in that the motor is defeated
External splines is arranged in shaft, and internal spline, the external splines of motor output shaft and the interior flower of transmission input shaft is arranged in transmission input shaft
Key connection.
3. a kind of electric vehicle input shaft spline self-lubricating device according to claim 1, which is characterized in that the cycloid oil
The oil Pump rotor of pump is equipped with a rectangular straight slot, and positioning pin is arranged inside rectangular straight slot.
4. a kind of electric vehicle input shaft spline self-lubricating device according to claim 1, which is characterized in that the gearbox
The internal spline of connection transmission input shaft, right side connect gearbox rear end gear, speed change on the left of Oil Guide cavity inside input shaft
The side of case input shaft is additionally provided with oil hole, and connection Oil Guide cavity and Swing line oil pump are distinguished in oil hole both ends.
5. a kind of electric vehicle input shaft spline self-lubricating device according to claim 1, which is characterized in that the gearbox
The stepped setting of Oil Guide cavity inside input shaft.
6. a kind of electric vehicle input shaft spline self-lubricating device according to claim 1, which is characterized in that the dynamo oil
Sealing, motor output shaft oil sealing layer use tc type outside framework oil seal layer, and tc type outside framework oil seal layer is made of polytetrafluoroethylene (PTFE).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811558681.8A CN109538744A (en) | 2018-12-19 | 2018-12-19 | A kind of electric vehicle input shaft spline self-lubricating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811558681.8A CN109538744A (en) | 2018-12-19 | 2018-12-19 | A kind of electric vehicle input shaft spline self-lubricating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109538744A true CN109538744A (en) | 2019-03-29 |
Family
ID=65855655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811558681.8A Pending CN109538744A (en) | 2018-12-19 | 2018-12-19 | A kind of electric vehicle input shaft spline self-lubricating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109538744A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110086287A (en) * | 2019-06-04 | 2019-08-02 | 苏州绿控传动科技股份有限公司 | A kind of new-energy automobile power motor sealing structure |
| CN111043288A (en) * | 2019-12-31 | 2020-04-21 | 恒安(中国)纸业有限公司 | Speed reducer output shaft sealing gland and sealing process thereof |
| CN113530991A (en) * | 2021-06-30 | 2021-10-22 | 东风汽车零部件(集团)有限公司刃量具分公司 | Structure for shortening butt joint axial size of transfer case |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205190721U (en) * | 2015-12-14 | 2016-04-27 | 成都久和建设设备有限责任公司 | Speed reducer input spline is from lubricating arrangement |
| CN205423786U (en) * | 2015-12-14 | 2016-08-03 | 成都久和建设设备有限责任公司 | Reducer output end spline is from lubricating arrangement |
| CN206983728U (en) * | 2017-07-06 | 2018-02-09 | 株洲欧格瑞传动股份有限公司 | A kind of electric drive assembly with high speed shaft lubricating arrangement |
| US20180208043A1 (en) * | 2017-01-23 | 2018-07-26 | Auburn Gear, Llc | Electric motor and gearing assembly |
| CN108591289A (en) * | 2018-04-28 | 2018-09-28 | 合肥巨动力系统有限公司 | Using the spline coupling structure of oil lubrication |
-
2018
- 2018-12-19 CN CN201811558681.8A patent/CN109538744A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205190721U (en) * | 2015-12-14 | 2016-04-27 | 成都久和建设设备有限责任公司 | Speed reducer input spline is from lubricating arrangement |
| CN205423786U (en) * | 2015-12-14 | 2016-08-03 | 成都久和建设设备有限责任公司 | Reducer output end spline is from lubricating arrangement |
| US20180208043A1 (en) * | 2017-01-23 | 2018-07-26 | Auburn Gear, Llc | Electric motor and gearing assembly |
| CN206983728U (en) * | 2017-07-06 | 2018-02-09 | 株洲欧格瑞传动股份有限公司 | A kind of electric drive assembly with high speed shaft lubricating arrangement |
| CN108591289A (en) * | 2018-04-28 | 2018-09-28 | 合肥巨动力系统有限公司 | Using the spline coupling structure of oil lubrication |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110086287A (en) * | 2019-06-04 | 2019-08-02 | 苏州绿控传动科技股份有限公司 | A kind of new-energy automobile power motor sealing structure |
| CN111043288A (en) * | 2019-12-31 | 2020-04-21 | 恒安(中国)纸业有限公司 | Speed reducer output shaft sealing gland and sealing process thereof |
| CN113530991A (en) * | 2021-06-30 | 2021-10-22 | 东风汽车零部件(集团)有限公司刃量具分公司 | Structure for shortening butt joint axial size of transfer case |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20190329 |