CN108644366A - A kind of gearbox fuel feeding and lubricating system - Google Patents

A kind of gearbox fuel feeding and lubricating system Download PDF

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Publication number
CN108644366A
CN108644366A CN201810763952.7A CN201810763952A CN108644366A CN 108644366 A CN108644366 A CN 108644366A CN 201810763952 A CN201810763952 A CN 201810763952A CN 108644366 A CN108644366 A CN 108644366A
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China
Prior art keywords
valve
oil
cooling
connect
mechanical
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CN201810763952.7A
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Chinese (zh)
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CN108644366B (en
Inventor
王中华
尹良杰
郑海兵
杨士先
张标
黄光颖
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Anhui Jianghuai Automobile Group Corp
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Anhui Jianghuai Automobile Group Corp
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Priority to CN201810763952.7A priority Critical patent/CN108644366B/en
Publication of CN108644366A publication Critical patent/CN108644366A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/04Features relating to lubrication or cooling or heating
    • F16H57/0434Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/04Features relating to lubrication or cooling or heating
    • F16H57/0412Cooling or heating; Control of temperature
    • F16H57/0413Controlled cooling or heating of lubricant; Temperature control therefor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/04Features relating to lubrication or cooling or heating
    • F16H57/0434Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
    • F16H57/0441Arrangements of pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16NLUBRICATING
    • F16N11/00Arrangements for supplying grease from a stationary reservoir or the equivalent in or on the machine or member to be lubricated; Grease cups
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16NLUBRICATING
    • F16N39/00Arrangements for conditioning of lubricants in the lubricating system
    • F16N39/02Arrangements for conditioning of lubricants in the lubricating system by cooling

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Details Of Gearings (AREA)

Abstract

The invention discloses a kind of gearbox fuel feeding and lubricating systems, by being provided with two fuel feeding branches, one is system fuel feeding by engine-driven mechanical oil pump, another by electronic oil pump, system fuel feeding can be worked when engine does not start by electronic oil pump in order to control, control system oil can be provided, realize gear pre- engagement and clutch it is pre-filled, a part of fluid can also be distributed and arrive cooling system, meet vehicle static start-stop and the needs of slide start and stop.

Description

A kind of gearbox fuel feeding and lubricating system
Technical field
The present invention relates to vehicle gear box field more particularly to a kind of gearbox fuel feeding and lubricating systems.
Background technology
As Chinese market is got on the car being continuously increased of sales volume, for being matched with automatic gear-box vehicle on domestic market Demand is also being continuously increased simultaneously, and domestic majority main engine plants have also carried out the research and development of dual-clutch transmission.For hydraulic pressure The design of system oil supply system and lubricating system is a highly important link.
Invention content
The object of the present invention is to provide a kind of gearbox fuel feeding and lubricating system can to solve the problems of the prior art System control oil and cooling and lubricating oil are provided for gearbox.
A kind of gearbox fuel feeding of present invention offer and lubricating system, the gearbox fuel feeding and lubricating system include:Oil sump, Suction-type filter, the second check valve, mechanical oil pump, principal pressure solenoid valve, principal pressure mechanical slide valve, control system, cooling system System, the first check valve, electronic oil pump, reversal valve, third check valve;
Suction-type filter is connect with oil sump, suction-type filter successively with the second check valve, the oil inlet of mechanical oil pump Connection, mechanical oil pump also connect with engine, the oil outlet of mechanical oil pump respectively with the oil inlet of principal pressure solenoid valve, principal pressure The oil inlet of mechanical slide valve, the left end control mouth of principal pressure mechanical slide valve, control system connection, the first of principal pressure mechanical slide valve Oil outlet is connect with cooling system;
Suction-type filter is also connect with the oil inlet of the first check valve, electronic oil pump, reversal valve successively, and the of reversal valve One oil outlet is connect with third check valve, third check valve respectively with the oil inlet of principal pressure solenoid valve, principal pressure mechanical slide valve Oil inlet, principal pressure mechanical slide valve left end control mouth, control system connection, the second oil outlet and cooling system of reversal valve Connection, the oil outlet of principal pressure solenoid valve respectively with the right end control mouth of principal pressure mechanical slide valve, the left end control mouth of reversal valve Connection;
Cooling system is also connect with clutch, gear set respectively.
Preferably, the cooling system includes:First cooling solenoid valve, filter-press, cooling pressure regulating slide valve, Second cooling solenoid valve;
The oil inlet of first cooling solenoid valve is connect with the first oil outlet of principal pressure mechanical slide valve, the first cooling solenoid valve The first oil outlet connect with filter-press, filter-press respectively with second cooling the first oil inlet of solenoid valve, cooling The right end control mouth connection of the oil inlet, cooling pressure regulating slide valve of pressure regulating slide valve;
First oil outlet of the second cooling solenoid valve connects with the left end control mouth of clutch, cooling pressure regulating slide valve respectively It connects, the second oil outlet of the second cooling solenoid valve is connect with gear set, the second oil inlet and reversal valve of the second cooling solenoid valve The second oil outlet connection, second cooling solenoid valve third oil outlet connect with clutch;
The oil outlet of cooling pressure regulating slide valve is connect with the oil inlet of nearlyr oil pumps.
Preferably, the gearbox fuel feeding and lubricating system further include temperature sensor and cooler, the temperature passes Sensor is connect with the first cooling solenoid valve, and one end of cooler is connect with the second oil outlet of the first cooling solenoid valve, the other end It is connect with filter-press.
Preferably, the gearbox fuel feeding and lubricating system further include by-passing valve, the by-passing valve is connected in parallel on pressure mistake The both ends of filter.
Preferably, the second oil outlet of principal pressure mechanical slide valve and the oil inlet of mechanical oil pump connect.
Preferably, the gearbox fuel feeding and lubricating system further include safety unloading valve, described safety unloading valve one end It is connect with the oil outlet of mechanical oil pump, the oil inlet connection of the other end and mechanical oil pump.
Preferably, the gearbox fuel feeding and lubricating system further include primary pressure sensor, primary pressure sensor and machine The oil outlet of tool oil pump connects.
Gearbox fuel feeding provided by the invention and lubricating system, by being provided with two fuel feeding branches, one by starting The mechanical oil pump of machine driving is system fuel feeding, another by electronic oil pump system fuel feeding in order to control, when engine does not start, Can be worked by electronic oil pump, can provide control system oil, realize gear pre- engagement and clutch it is pre-filled, also may be used To distribute a part of fluid to cooling system, the needs of meeting vehicle static start-stop and slide start and stop.
Description of the drawings
Fig. 1 is gearbox fuel feeding provided in an embodiment of the present invention and the structural schematic diagram of lubricating system;
Fig. 2 is the partial schematic diagram of gearbox fuel feeding and lubricating system that further embodiment of this invention provides;
Fig. 3 is the partial schematic diagram of gearbox fuel feeding and lubricating system that further embodiment of this invention provides;
Reference sign:
1- oil sumps, 2- suction-type filters, the first check valves of 3-, the second check valves of 4-, engine, 6- mechanical oil pumps, electricity Seed oil pumps, 8- reversal valves, 9- safety unloading valves, 10- primary pressure sensors, 11- principal pressure mechanical slide valves, 12- principal pressure electromagnetism Valve, 13- third check valves, 14- first cool down solenoid valve, 15- temperature sensors, 16- coolers, 17- by-passing valves, 18- pressure Filter, 19- second cool down solenoid valve, 20- cooling pressure regulating slide valves, 21- clutches, 22- gear sets, 23- control systems.
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached The embodiment of figure description is exemplary, and is only used for explaining the present invention, and is not construed as limiting the claims.
As shown in Figs. 1-3, the embodiment of the present invention provides a kind of gearbox fuel feeding and lubricating system, the gearbox fuel feeding and Lubricating system includes:Oil sump 1, suction-type filter 2, the second check valve 4, mechanical oil pump 6, principal pressure solenoid valve 12, principal pressure Mechanical slide valve 11, control system 23, cooling system, the first check valve 3, electronic oil pump 7, reversal valve 8, third check valve 13;
Suction-type filter 2 is connect with oil sump 1, suction-type filter 2 successively with the second check valve 4, mechanical oil pump 6 into Hydraulic fluid port connects, and mechanical oil pump 6 is also connect with engine 5, the oil outlet oil inlet with principal pressure solenoid valve 12 respectively of mechanical oil pump 6 Mouth, the connection of the left end control mouth of the oil inlet of principal pressure mechanical slide valve 11, principal pressure mechanical slide valve 11, control system 23, main pressure First oil outlet of power mechanical slide valve 11 is connect with cooling system;
Suction-type filter 2 is also connect with the oil inlet of the first check valve 3, electronic oil pump 7, reversal valve 8 successively, reversal valve 8 the first oil outlet is connect with third check valve 13, third check valve 13 respectively with the oil inlet of principal pressure solenoid valve 12, main pressure The oil inlet of power mechanical slide valve 11, the left end control mouth of principal pressure mechanical slide valve 11, control system 23 connect, and the of reversal valve 8 Two oil outlets are connect with cooling system, and the oil outlet of principal pressure solenoid valve 12 is controlled with the right end of principal pressure mechanical slide valve 11 respectively The left end control mouth connection of mouth, reversal valve 8;
Cooling system is also connect with clutch 21, gear set 22 respectively.
Preferably, the cooling system includes:First cooling solenoid valve 14, filter-press 18, cooling pressure are adjusted Guiding valve 20, second cools down solenoid valve 19;
The oil inlet of first cooling solenoid valve 14 is connect with the first oil outlet of principal pressure mechanical slide valve 11, the first cooling electricity First oil outlet of magnet valve 14 is connect with filter-press 18, and filter-press 18 cools down the first of solenoid valve 19 with second respectively The right end control mouth connection of oil inlet, the oil inlet of cooling pressure regulating slide valve 20, cooling pressure regulating slide valve 20;
The first oil outlet left end control with clutch 21, cooling pressure regulating slide valve 20 respectively of second cooling solenoid valve 19 Donsole connect, second cooling solenoid valve 19 the second oil outlet connect with gear set 22, second cool down solenoid valve 19 second into Hydraulic fluid port is connect with the second oil outlet of reversal valve 8, and the third oil outlet of the second cooling solenoid valve 19 is connect with clutch 21;
The oil outlet of cooling pressure regulating slide valve 20 is connect with the oil inlet of nearlyr oil pumps.
Preferably, the gearbox fuel feeding and lubricating system further include temperature sensor 15 and cooler 16, the temperature Degree sensor 15 is connect with the first cooling solenoid valve 14, second oil outlet of one end of cooler 16 and the first cooling solenoid valve 14 Connection, the other end are connect with filter-press 18.
Preferably, the gearbox fuel feeding and lubricating system further include by-passing valve 17, the by-passing valve 17 is connected in parallel on pressure The both ends of power filter 18.
Preferably, the second oil outlet of principal pressure mechanical slide valve 11 is connect with the oil inlet of mechanical oil pump 6.
Preferably, the gearbox fuel feeding and lubricating system further include safety unloading valve 9, the safety unloading valve 9 one End is connect with the oil outlet of mechanical oil pump 6, and the other end is connect with the oil inlet of mechanical oil pump 6.
Preferably, the gearbox fuel feeding and lubricating system further include primary pressure sensor 10, primary pressure sensor 10 It is connect with the oil outlet of mechanical oil pump 6.
Wherein, above-mentioned reversal valve 8 is two-bit triplet mechanical slide valve, and principal pressure mechanical slide valve 11 is slided for 3-position-3-way machinery Valve, principal pressure solenoid valve 12 are two-bit triplet solenoid valve, and the first cooling solenoid valve 14 is that two-bit triplet solenoid valve second cools down electricity Magnet valve 19 is 3 position-5 way solenoid valve, and-cooling pressure regulating slide valve 20 is 2/2-way mechanical slide valve;
Concrete operating principle is described as follows:
Fluid into suction-type filter 2, is then divided into two branches, wherein first branch after being exported in oil sump 1 Fluid reaches the oil inlet 6A of mechanical oil pump 6, mechanical oil pump 6 is under the driving of engine 5, by low pressure by the second check valve 4 Fluid be converted into high pressure oil, reach the oil outlet 6B of mechanical oil pump 6;
After oil outlet 6B outflow, be divided into five branches, the fluid of the first branch flow to principal pressure solenoid valve 12 into Then hydraulic fluid port 12P reaches oil outlet 12B by principal pressure solenoid valve 12, then flows to the right side of principal pressure mechanical slide valve 11 respectively The left end control mouth 8A of control mouth 11A2 and reversal valve 8, the fluid of the second branch is held to flow to the oil inlet of principal pressure mechanical slide valve 11 Mouth 11P, the fluid of third branch flow to the left end control mouth 11A1 of principal pressure mechanical slide valve 11, and the fluid of the 4th branch flows to control In system 23 processed, system 23 provides pressure and controls fluid in order to control.5th branch fluid flows to the side of safety unloading valve 9, When the pressure of control system 23 reaches certain pressure, such as 35bar, the off-load of pressure may be implemented, fluid returns to machinery oil The import 6A of pump 6;
The second branch fluid separated from suction-type filter 2, by the first check valve 3, into the oil inlet of electronic oil pump 7 Mouthful, electronic oil pump 7 is transported to the oil outlet of electronic oil pump 7 under the driving of motor, in the low pressure oil of oil inlet, is transformed into high pressure Oil then proceedes to the oil inlet 8P for flowing to reversal valve 8, and when reversal valve 8 is operated in first position (current location), fluid is logical Reversal valve 8 is crossed, the first oil outlet 8B1 is reached, then passes through third check valve 13, is then similarly distributed into four branches, the One branch fluid flows to the oil inlet 12P of principal pressure solenoid valve 12, and the fluid of the second branch flows to principal pressure mechanical slide valve 11 The fluid of oil inlet 11P, third branch flow to the left end control mouth 11A1 of principal pressure mechanical slide valve 11, the fluid stream of the 4th branch Into control system 23.When the pressure that reversal valve 8 is exported by principal pressure solenoid valve 12 acts on, when pressure is more than 6bar, Reversal valve 8 is switched to the second operating position, and the pressure oil that electronic oil pump 7 exports flows to the second oil outlet 8B2 by reversal valve 8, The second oil inlet 19P2 of the second cooling solenoid valve 19 is then flowed to, the third oil outlet of the second cooling solenoid valve 19 is then passed through 19B3 then flows into the cooling branch of clutch 21, the lubrication for supplementing clutch 21.
The fluid distributed from the second branch reaches the oil inlet 11P of principal pressure mechanical slide valve 11, by principal pressure guiding valve After adjusting, a part of fluid can flow to the first oil outlet 11B1 of principal pressure mechanical slide valve 11, and another part fluid flows to Second oil outlet 11B2 of principal pressure mechanical slide valve 11;The inlet port of mechanical oil pump 6 is returned from the fluid of the second oil outlet 11B2 6A。
The fluid for flowing to the first oil outlet 11B1 continues to flow, and flows to the oil inlet 14P of the first cooling solenoid valve 14, and first Under current location, oil inlet 14P is connected cooling solenoid valve 14 with the first oil outlet 14B1, and fluid reaches the first cooling solenoid valve 14 the first oil outlet 14B1, then flows to filter-press 18, cooler 16 is provided in the branch of setting connected in parallel.When When temperature in use sensor 15 detects that the temperature of oil sump 1 is more than 90 degree, the first cooling solenoid valve 14 starts work so that oil inlet Mouth 14P and the second oil outlet 14B2 conductings so that the fluid of high temperature can pass through cooler 16 and carry out heat exchange so that gearbox The operating temperature of oil sump 1 is maintained in rational working range.In the branch being arranged in parallel with filter-press 18, it is provided with side Port valve 17, when filter-press 18 blocks, fluid can be flowed through from by-passing valve 17.
By the fluid of filter-press 18, then fluid is divided into two branches, and the first branch flows to the second cooling electromagnetism First oil inlet 19P1 of valve 19, when the second cooling solenoid valve 19 is operated in current location, fluid is by the second cooling electromagnetism After valve 19, the first oil outlet 19B1 of the second cooling solenoid valve 19 is reached, then a part can flow to cooling pressure and adjust cunning The left end control mouth 20A2 of valve 20, a part of fluid flow to the cooling branch of clutch 21, carry out clutch 21 and cool down;
When the second cooling solenoid valve 19 is operated in the second position, the fluid of the first branch can reach the second cooling simultaneously Second oil outlet 19B2 of solenoid valve 19, fluid flow to the cooling branch of gear set 22, and forced feed lubrication is carried out to gear pair.
When the second cooling solenoid valve 19 is operated in the third place, the fluid provided from the first oil inlet 19P1 meets need It asks, realizes and cut off to the branch of third oil outlet 19B3 from the second oil inlet 19P2, to prevent electronic oil pump 7 from not working, draw The fluid risen is flow backwards.
The fluid of the second branch flows to the oil inlet 20P and right end control mouth 20A1 of cooling pressure regulating slide valve 20 simultaneously, Pressure difference is formed with 20 left end control mouth 20A2 fluid of cooling pressure regulating slide valve is flowed to, when the pressure difference of both sides is more than 4bar, So that the oil inlet 20P and oil outlet 20B of cooling pressure regulating slide valve 20 realize conducting, extra fluid can be made to return to machine The inlet port 6A of tool oil pump 6.
The collaborative work principle of mechanical oil pump 6 and electronic oil pump 7:
1) when engine 5 does not work, mechanical oil pump 6 does not work, and electronic oil pump 7 works, the work present bit of reversal valve 8 It sets, the pressure of system branch is less than 8bar, and the fluid that electronic oil pump 7 exports is input to third check valve 13 by reversal valve 8, to Control system 23 provides control oil and provides lubricating oil to cooling system by principal pressure mechanical slide valve 11.The control of offer It can be used for 21 pre-oiling of engagement in advance and clutch of gear with oil.
2) when engine 5 starts work, rotating speed is controlled in 800~1500rpm, and mechanical oil pump 6 is started to work, electronics oil Pump 7 works at the same time, and the pressure of system branch is less than 8bar, and reversal valve 8 is still operated in current location, mechanical oil pump 6 and electronics oil Pump 7 can provide the oil of control system 23 for system branch simultaneously.
3) when engine 5 starts work, rotating speed is controlled in 800~1500rpm, and mechanical oil pump 6 is started to work, electronics oil Pump 7 works at the same time, and the pressure of system branch is more than 8bar, and reversal valve 8 realizes the switching second position, 6 system branch of mechanical oil pump The oil of control system 23 is provided.Electronic oil pump 7 provides fluid, and supplement clutch 21 lubricates.
4) when engine 5 works, rotating speed is controlled in 1500~2000rpm, and mechanical oil pump 6 works, and electronic oil pump 7 is simultaneously The pressure of work, system branch is more than 8bar, and reversal valve 8 realizes that the switching second position, 6 system branch of mechanical oil pump provide control The oil of system 23, electronic oil pump 7 provide fluid, and supplement clutch 21 lubricates.
5) when engine 5 works, after rotating speed is more than 2000rpm, mechanical oil pump 6 works, and the fluid provided, which has met, is The demand of system, electronic oil pump 7 are stopped, and no longer provide fluid output.
The operation principle of second cooling solenoid valve 19:
1) it is, for example, less than 1200rpm when 5 rotating speed of engine is relatively low, the fluid that mechanical oil pump 6 exports is fewer, first It first needs to ensure that 21 lubrication needs of clutch, the second cooling solenoid valve 19 are operated in first position, i.e. current location;
2) when 5 rotating speed of engine, it is more than 1200rpm, is less than 2000rpm, the flow that mechanical oil pump 6 exports increases, with electricity 7 cooperation of seed oil pump has met the demand of the lubrication of clutch 21, and the second cooling solenoid valve 19 is operated in the second position, can be with So that the first oil inlet 19P1 and the first oil outlet 19B1 and the second oil outlet 19B2 can be realized simultaneously conducting.
3) when 5 rotating speed of engine, it is more than after 2000rpm, the requirement that mechanical oil pump 6 exports can meet system Demand, the second cooling work of solenoid valve 19 is the third place so that the second oil inlet 19P2 and the 19B3 realizations of third oil outlet are cut It is disconnected.It prevents from not working because of electronic oil pump 7, causes the refluence of the cooling branch fluid of clutch 21.
What technical solution of the present invention was brought has the beneficial effect that:
1, by being provided with two fuel feeding branches, one is system fuel feeding by the mechanical oil pump 6 that engine 5 drives, separately One by electronic oil pump 7,23 fuel feeding of system can be worked when engine 5 does not start by electronic oil pump 7 in order to control, can be with There is provided control system 23 with oil, realize gear pre- engagement and clutch 21 it is pre-filled, a part of fluid can also be distributed and arrived Cooling system, the needs of meeting vehicle static start-stop and slide start and stop;
2, the second cooling of setting solenoid valve 19, passes through the judgement of 5 rotating speed of engine, it is ensured that in 5 rotating ratio of engine In the case of lower, the second cooling solenoid valve 19 is operated in current location, the preferential lubrication for ensureing clutch 21, prevent from causing from 21 ablation of clutch;Provided with reversal valve 8, which is controlled by principal pressure solenoid valve 12, at first position, to System branch realizes fuel feeding, at the second position, to cooling system fuel feeding.Meanwhile it being provided with third check valve 13, it prevents from only having When 7 fuel feeding of mechanical oil pump 6 and electronic oil pump, system fluid is caused to return in the branch of electronic oil pump 7;
3, the first cooling solenoid valve 14 of setting and temperature sensor 15, by detecting the temperature of oil sump 1, if being less than 90 Degree, cooling oil can make fluid rapidly be raised to 90 degree of the ideal operating temperature of gearbox without subcooler 16.
The structure, feature and effect of the present invention, the above institute are described in detail based on the embodiments shown in the drawings Only presently preferred embodiments of the present invention is stated, but the present invention is not to limit practical range, every structure according to the present invention shown in drawing Change made by thinking, or is revised as the equivalent embodiment of equivalent variations, when not going beyond the spirit of the description and the drawings, It should all be within the scope of the present invention.

Claims (7)

1. a kind of gearbox fuel feeding and lubricating system, which is characterized in that the gearbox fuel feeding and lubricating system include:Oil sump, Suction-type filter, the second check valve, mechanical oil pump, principal pressure solenoid valve, principal pressure mechanical slide valve, control system, cooling system System, the first check valve, electronic oil pump, reversal valve, third check valve;
Suction-type filter is connect with oil sump, and suction-type filter is connect with the oil inlet of the second check valve, mechanical oil pump successively, Mechanical oil pump is also connect with engine, and the oil outlet of mechanical oil pump is mechanical with the oil inlet of principal pressure solenoid valve, principal pressure respectively The oil inlet of guiding valve, the left end control mouth of principal pressure mechanical slide valve, control system connection, the first of principal pressure mechanical slide valve are fuel-displaced Mouth is connect with cooling system;
Suction-type filter is also connect with the oil inlet of the first check valve, electronic oil pump, reversal valve successively, and the first of reversal valve goes out Hydraulic fluid port is connect with third check valve, third check valve respectively with the oil inlet of principal pressure solenoid valve, principal pressure mechanical slide valve into Hydraulic fluid port, the left end control mouth of principal pressure mechanical slide valve, control system connection, the second oil outlet and the cooling system of reversal valve connect It connects, the oil outlet of principal pressure solenoid valve connects with the right end control mouth of principal pressure mechanical slide valve, the left end control mouth of reversal valve respectively It connects;
Cooling system is also connect with clutch, gear set respectively.
2. gearbox fuel feeding according to claim 1 and lubricating system, which is characterized in that the cooling system includes:The One cooling solenoid valve, filter-press, cooling pressure regulating slide valve, the second cooling solenoid valve;
The oil inlet of first cooling solenoid valve is connect with the first oil outlet of principal pressure mechanical slide valve, and first cools down the of solenoid valve One oil outlet is connect with filter-press, the first oil inlet, the cooling pressure that filter-press cools down solenoid valve with second respectively The right end control mouth connection of the oil inlet, cooling pressure regulating slide valve of regulating slide valve;
First oil outlet of the second cooling solenoid valve is connect with the left end control mouth of clutch, cooling pressure regulating slide valve respectively, Second oil outlet of the second cooling solenoid valve is connect with gear set, and second cools down the of the second oil inlet of solenoid valve and reversal valve Two oil outlets connect, and the third oil outlet of the second cooling solenoid valve is connect with clutch;
The oil outlet of cooling pressure regulating slide valve is connect with the oil inlet of nearlyr oil pumps.
3. gearbox fuel feeding according to claim 2 and lubricating system, which is characterized in that the gearbox fuel feeding and lubrication System further includes temperature sensor and cooler, and the temperature sensor is connect with the first cooling solenoid valve, one end of cooler It is connect with the second oil outlet of the first cooling solenoid valve, the other end is connect with filter-press.
4. gearbox fuel feeding according to claim 3 and lubricating system, which is characterized in that the gearbox fuel feeding and lubrication System further includes by-passing valve, and the by-passing valve is connected in parallel on the both ends of filter-press.
5. gearbox fuel feeding according to claim 1 and lubricating system, which is characterized in that the second of principal pressure mechanical slide valve The oil inlet of oil outlet and mechanical oil pump connects.
6. gearbox fuel feeding according to claim 1 and lubricating system, which is characterized in that the gearbox fuel feeding and lubrication System further includes safety unloading valve, the oil outlet connection of described safety unloading valve one end and mechanical oil pump, the other end and machinery oil The oil inlet of pump connects.
7. gearbox fuel feeding according to claim 1 and lubricating system, which is characterized in that the gearbox fuel feeding and lubrication System further includes primary pressure sensor, the oil outlet connection of primary pressure sensor and mechanical oil pump.
CN201810763952.7A 2018-07-12 2018-07-12 Oil supply and lubrication system for gearbox Active CN108644366B (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109139895A (en) * 2018-11-16 2019-01-04 安徽江淮汽车集团股份有限公司 A kind of double pump fuel feeding and lubricating and cooling system
CN109268346A (en) * 2018-11-13 2019-01-25 安徽江淮汽车集团股份有限公司 A kind of oil pump performance test loop
CN110388452A (en) * 2019-07-26 2019-10-29 奇瑞汽车股份有限公司 Hydraulic feed system, control method and automobile
CN113757354A (en) * 2021-10-11 2021-12-07 安徽江淮汽车集团股份有限公司 Control method and device for electronic oil pump of automatic gearbox
CN113790259A (en) * 2021-09-14 2021-12-14 安徽江淮汽车集团股份有限公司 Oil supply and lubricating and cooling system
CN114151535A (en) * 2021-10-29 2022-03-08 东风商用车有限公司 Gearbox lubricating system
CN117537066A (en) * 2024-01-10 2024-02-09 北京航空航天大学 Forced cooling lubrication hydraulic control system for motor and starting clutch of hybrid transmission

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