CN112610682A - Active lubricating and cooling system for new energy automobile transmission - Google Patents
Active lubricating and cooling system for new energy automobile transmission Download PDFInfo
- Publication number
- CN112610682A CN112610682A CN202011480824.5A CN202011480824A CN112610682A CN 112610682 A CN112610682 A CN 112610682A CN 202011480824 A CN202011480824 A CN 202011480824A CN 112610682 A CN112610682 A CN 112610682A
- Authority
- CN
- China
- Prior art keywords
- oil pump
- oil
- transmission
- cooling system
- new energy
- 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
- F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
-
- 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
- F16H57/0402—Cleaning of lubricants, e.g. filters or magnets
- F16H57/0404—Lubricant filters
-
- 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
- F16H57/0413—Controlled cooling or heating of lubricant; Temperature control therefor
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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
- F16H57/0417—Heat exchangers adapted or integrated in the gearing
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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
- F16H57/0436—Pumps
-
- 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
- F16N—LUBRICATING
- F16N13/00—Lubricating-pumps
- F16N13/20—Rotary pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/30—Casings or housings
Abstract
The invention discloses an active lubricating and cooling system of a new energy automobile transmission, which comprises an oil pump, a heat exchanger and an oil pipe, wherein the oil pump, the heat exchanger and the oil pipe are arranged in the transmission; the power input end of the oil pump is connected with an intermediate shaft in the transmission, and the intermediate shaft drives the oil pump to work. According to the invention, by means of the power of the intermediate shaft in the transmission, gear oil is sucked out through the oil pump, the gear oil is cooled through the heat exchanger, and finally, the oil hole is formed in the designated position on the oil guide pipe, so that the fixed-point positioning cooling lubrication is carried out on the interior of the transmission, and all parts in the transmission are fully lubricated and cooled, so that the transmission can adapt to various complex working conditions and road conditions, the consumption of lubricating oil can be reduced, and the working efficiency of the transmission is improved.
Description
Technical Field
The invention relates to the technical field of transmissions, in particular to an active lubricating and cooling system for a new energy automobile transmission.
Background
The existing lubricating and cooling system of the new energy pure electric vehicle transmission mainly adopts a gear oil splashing lubricating mode to lubricate and cool all parts in the transmission, the system requires more gear oil filling amount, the transmission has larger oil stirring loss and lower transmission efficiency, and meanwhile, under special working conditions, parts in the transmission can not be fully lubricated and cooled, so that the transmission fails in early stage.
Disclosure of Invention
The technical problem to be solved by the invention is to provide an active lubricating and cooling system for a new energy automobile transmission, which utilizes the power of an intermediate shaft in the transmission, sucks out gear oil through an oil pump, cools the gear oil through a heat exchanger, and finally performs fixed-point positioning cooling and lubricating on the interior of the transmission by arranging an oil hole at a designated position on an oil guide pipe.
In order to solve the technical problem, the invention provides an active lubricating and cooling system of a new energy automobile transmission, which comprises an oil pump, a heat exchanger and an oil pipe, wherein the oil pump, the heat exchanger and the oil pipe are arranged in the transmission; the power input end of the oil pump is connected with an intermediate shaft in the transmission, and the intermediate shaft drives the oil pump to work.
In a preferred embodiment of the present invention, the transmission further comprises a front housing and a rear housing detachably coupled to each other, and the front housing is coupled to a front cover by bolts.
In a preferred embodiment of the invention, the input end of the oil pump is communicated with a filter through an oil delivery channel arranged in the front cover, the filter is arranged below the front shell, and the filter collects and filters gear oil in the transmission.
In a preferred embodiment of the present invention, the oil pump further includes an oil pump inner rotor, an oil pump outer rotor, and an oil pump end cover, the oil pump inner rotor and the oil pump outer rotor are both disposed in the front cover, the oil pump inner rotor is connected to the middle shaft through an inner rotor driving shaft, the oil pump outer rotor is sleeved outside the oil pump inner rotor, and the oil pump end cover seals the oil pump inner rotor and the oil pump outer rotor and limits axial movement of the oil pump inner rotor and the oil pump outer rotor.
In a preferred embodiment of the invention, the inner rotor driving shaft and the intermediate shaft transmit power through flat key connection.
In a preferred embodiment of the present invention, the intermediate shaft is fixed to the front cover, the front housing and the rear housing by bearings.
In a preferred embodiment of the present invention, the oil conduit is further supported at one end thereof on the front housing and at the other end thereof on the rear housing.
In a preferred embodiment of the present invention, it is further comprised that the heat exchanger is detachably fixed to the front housing by bolts.
In a preferred embodiment of the present invention, the oil pipe further comprises a front end of the oil pipe communicated with the oil pump through the oil pipe adaptor, and a tail end of the oil pipe communicated with the heat exchanger through the clamp.
The invention has the beneficial effects that:
according to the invention, by means of the power of the intermediate shaft in the transmission, gear oil is sucked out through the oil pump, the gear oil is cooled through the heat exchanger, and finally, the oil hole is formed in the designated position on the oil guide pipe to perform fixed-point positioning cooling lubrication on the interior of the transmission; the gear oil is cooled by the heat exchanger and then input into the transmission, so that the purpose of cooling the gear oil is achieved, and gear pitting corrosion caused by overhigh temperature of the gear oil is avoided; and through setting up the oil pipe in the derailleur, the oilhole has been seted up to the assigned position on oil pipe, fixes a position the cooling lubrication to the inside of derailleur, fully lubricates and cools off each inside spare part of derailleur, makes the derailleur can adapt to various complicated operating mode, road conditions, can reduce the lubricating oil quantity simultaneously, promotes the work efficiency of derailleur.
Drawings
FIG. 1 is an active lubricating and cooling system of a new energy automobile transmission;
fig. 2 is a schematic flow diagram of the gear oil of the present invention.
The reference numbers in the figures illustrate: 1. a front cover; 2. a front housing; 3. a rear housing; 4. an oil guide pipe; 5. an oil pipe; 6. a filter; 7. an oil pump inner rotor; 8. an outer rotor of the oil pump; 9. an oil pump end cover; 10. an inner rotor drive shaft; 11. an intermediate shaft; 12. a heat exchanger.
Detailed Description
The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.
Referring to fig. 1, an embodiment of the active lubrication and cooling system for a new energy automobile transmission of the present invention includes an oil pump, a heat exchanger 12 and an oil pipe 5 for communicating the oil pump and the heat exchanger 12, an output end of the oil pump is communicated with an input end of the heat exchanger 12 through the oil pipe 5, a front end of the oil pipe 5 is communicated with the oil pump through an oil pipe adapter, a tail end of the oil pipe 5 is communicated with the heat exchanger 12 through a clamp, the oil pump extracts gear oil through a pressure difference and presses the gear oil into the heat exchanger 12, the heat exchanger 12 cools the gear oil, the gear oil cooled by the heat exchanger 12 is input into the transmission again, so as to achieve a purpose of cooling the gear oil, further avoid gear pitting corrosion caused by an excessively high temperature of the gear oil, and an oil guide pipe 4 is disposed at an output end of the heat exchanger 12, the oil guide pipe 4 is provided with oil holes which are arranged above all parts in the transmission to perform fixed-point positioning cooling and lubrication on the inside of the transmission, so that all parts in the transmission are fully lubricated and cooled, the using amount of lubricating oil can be reduced, and the working efficiency of the transmission is improved; the power input end of the oil pump is connected with the intermediate shaft 11 in the transmission, the intermediate shaft 11 drives the oil pump to work, the gear oil is sucked out through the oil pump by means of the power of the intermediate shaft 11 in the transmission, and the collection efficiency is higher.
Specifically, the derailleur in this embodiment includes procapsid 2 and the back casing 3 that can dismantle the split connection, there is protecgulum 1 through bolted connection on the procapsid 2, the oil pump sets up in protecgulum 1, heat exchanger 12 passes through bolt detachable to be fixed on procapsid 2, and the improvement in this embodiment is applicable to the new energy automobile derailleur among the prior art promptly, need not to dismantle the inner structure of derailleur main part, only needs to realize transforming through bolted connection protecgulum 1 and heat exchanger 12 on current procapsid 2.
Specifically, the input of oil pump is through setting up the oil transportation passageway and the filter 6 intercommunication in protecgulum 1, filter 6 sets up the below at casing 2 in the front, gear oil in the derailleur is collected, filtered to filter 6, filter 6 is inside to be set up and the filter screen, filters harmful impurity in the gear oil through filter 6, and filter 6 in this embodiment can adopt centrifugal oil cleaner or full-flow oil cleaner.
In this embodiment, the oil pump includes oil pump inner rotor 7, oil pump outer rotor 8, oil pump end cover 9, oil pump inner rotor 7, oil pump outer rotor 8 all set up in protecgulum 1, oil pump inner rotor 7 is connected with jackshaft 11 through inner rotor drive shaft 10, oil pump outer rotor 8 cover is established in the oil pump inner rotor 7 outside, through the pressure differential between oil pump inner rotor 7, the oil pump outer rotor 8, impresses the gear oil after filtering via filter 6 into heat exchanger 12, oil pump end cover 9 seals package to inner rotor oil pump 7, oil pump outer rotor 8 to restrict oil pump inner rotor 7, oil pump outer rotor 8's axial displacement.
Specifically, the inner rotor driving shaft 10 and the intermediate shaft 11 are connected through a flat key to transmit power, the inner rotor driving shaft 10 is a flat key shaft, a flat key groove matched with the inner rotor driving shaft 10 is formed in the end face of the intermediate shaft 11, the flat key groove is formed in the center of the end face of the intermediate shaft 11, and the flat key groove and the intermediate shaft are coaxially arranged.
Specifically, the intermediate shaft 11 is fixed to the front cover 1, the front housing 2, and the rear housing 3 by bearings.
Specifically, the oil conduit 4 is arranged in the whole transmission in a penetrating manner, one end of the oil conduit 4 is supported on the front housing 2, the other end of the oil conduit 4 is supported on the rear housing 3, and oil holes are correspondingly formed in the oil conduit 4 according to the positions of various parts in the transmission.
Referring to fig. 2, the specific flow directions of the gear oil in the transmission in the present embodiment are: gear oil in the filter 6 reaches an oil pump through an oil conveying channel in the front cover 1, under the action of pressure difference between an inner rotor 7 of the oil pump and an outer rotor 8 of the oil pump in the oil pump, the gear oil enters the heat exchanger 12 through the oil pipe 4, after the gear oil is cooled in the heat exchanger 12, the gear oil flows into a cavity of the front cover 1 from an oil outlet of the oil pipe 4, a part of the gear oil lubricates parts such as bearings, oil seals and the like, a part of the gear oil lubricates the oil pipe 5, the gear oil is sprayed to each gear surface in the transmission from an oil hole of the oil pipe 5, and finally the gear oil flows into the filter 6 at the bottom.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (9)
1. The active lubricating and cooling system of the new energy automobile transmission is characterized by comprising an oil pump, a heat exchanger and an oil pipe, wherein the oil pump, the heat exchanger and the oil pipe are arranged in the transmission; the power input end of the oil pump is connected with an intermediate shaft in the transmission, and the intermediate shaft drives the oil pump to work.
2. The active lubrication and cooling system of the transmission of the new energy automobile according to claim 1, wherein the transmission comprises a front shell and a rear shell which are detachably connected in a split mode, and a front cover is connected to the front shell through bolts.
3. The active lubrication and cooling system for the transmission of the new energy automobile as claimed in claim 2, wherein the input end of the oil pump is communicated with a filter through an oil delivery passage arranged in the front cover, the filter is arranged below the front shell, and the filter collects and filters gear oil in the transmission.
4. The active lubrication and cooling system of the new energy automobile transmission according to claim 2, wherein the oil pump includes an oil pump inner rotor, an oil pump outer rotor, and an oil pump end cap, the oil pump inner rotor and the oil pump outer rotor are both disposed in the front cap, the oil pump inner rotor is connected with the intermediate shaft through an inner rotor drive shaft, the oil pump outer rotor is sleeved outside the oil pump inner rotor, and the oil pump end cap seals the oil pump inner rotor and the oil pump outer rotor and limits axial movement of the oil pump inner rotor and the oil pump outer rotor.
5. The active lubrication and cooling system of the new energy automobile transmission according to claim 4, wherein the inner rotor driving shaft and the intermediate shaft transmit power through a flat key connection.
6. The active lubrication and cooling system of the new energy automobile transmission according to claim 2, wherein the intermediate shaft is fixed on the front cover, the front housing and the rear housing through bearings.
7. The active lubrication and cooling system for the transmission of the new energy automobile according to claim 2, wherein one end of the oil conduit is supported on the front housing, and the other end of the oil conduit is supported on the rear housing.
8. The active lubrication and cooling system for the transmission of the new energy automobile as claimed in claim 2, wherein the heat exchanger is detachably fixed to the front housing by bolts.
9. The active lubrication and cooling system for the new energy automobile transmission according to claim 1, wherein the front end of the oil pipe is communicated with the oil pump through an oil pipe adapter, and the tail end of the oil pipe is communicated with the heat exchanger through a clamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011480824.5A CN112610682A (en) | 2020-12-15 | 2020-12-15 | Active lubricating and cooling system for new energy automobile transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011480824.5A CN112610682A (en) | 2020-12-15 | 2020-12-15 | Active lubricating and cooling system for new energy automobile transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112610682A true CN112610682A (en) | 2021-04-06 |
Family
ID=75239748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011480824.5A Pending CN112610682A (en) | 2020-12-15 | 2020-12-15 | Active lubricating and cooling system for new energy automobile transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112610682A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113833837A (en) * | 2021-09-18 | 2021-12-24 | 西安法士特汽车传动有限公司 | Gearbox and pure electric loader power system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2637825Y (en) * | 2003-08-09 | 2004-09-01 | 上汽集团奇瑞汽车有限公司 | Four driven vehicle speed changing box having cooling and forced lubricating action |
| US20120061184A1 (en) * | 2010-09-14 | 2012-03-15 | Eaton Corporation | Transmission Pump |
| CN103994203A (en) * | 2014-05-26 | 2014-08-20 | 陕西法士特齿轮有限责任公司 | Transmission integrated oil pump |
| CN106594253A (en) * | 2017-01-23 | 2017-04-26 | 中国第汽车股份有限公司 | Heavy type speed changer cooling and lubricating system and cooling and lubricating method |
-
2020
- 2020-12-15 CN CN202011480824.5A patent/CN112610682A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2637825Y (en) * | 2003-08-09 | 2004-09-01 | 上汽集团奇瑞汽车有限公司 | Four driven vehicle speed changing box having cooling and forced lubricating action |
| US20120061184A1 (en) * | 2010-09-14 | 2012-03-15 | Eaton Corporation | Transmission Pump |
| CN103994203A (en) * | 2014-05-26 | 2014-08-20 | 陕西法士特齿轮有限责任公司 | Transmission integrated oil pump |
| CN106594253A (en) * | 2017-01-23 | 2017-04-26 | 中国第汽车股份有限公司 | Heavy type speed changer cooling and lubricating system and cooling and lubricating method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113833837A (en) * | 2021-09-18 | 2021-12-24 | 西安法士特汽车传动有限公司 | Gearbox and pure electric loader power system |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210406 |