CN105909770B - A kind of double clutch gearbox lubricating system volume control device - Google Patents
A kind of double clutch gearbox lubricating system volume control device Download PDFInfo
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- CN105909770B CN105909770B CN201610437208.9A CN201610437208A CN105909770B CN 105909770 B CN105909770 B CN 105909770B CN 201610437208 A CN201610437208 A CN 201610437208A CN 105909770 B CN105909770 B CN 105909770B
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- flow
- oil pump
- oil
- lubricating
- piston
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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
- F16H57/0435—Pressure control for supplying lubricant; Circuits or valves therefor
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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 double clutch gearbox lubricating system volume control device, including flow valve body, the flow valve is the cavity surrounded equipped with end cap, outer housing and seal member；Piston and spool are equipped in the cavity, piston connects elastomeric element, and the piston is equipped at least two metering orifices.This reality newly ensures that gear of the double-lubrication oil way system at normal vehicle operation middle gear case and motor effectively can be lubricated and be cooled down, under gearbox shift hunting and limiting condition, it is ensured that the lubrication and cooling of gearbox medium gear.Caused by preventing because of lubrication shortage of oil the problems such as gear failure, the design of by-pass prot is ensured under gearbox shift hunting and limiting condition, the effectively lubricating of gear and cooling at motor.The valve body structure is compact, solves the problems, such as that position and narrow space are not easy to assemble at gearbox.
Description
Technical field
The present invention relates to passenger-car gear box active lubrication fields, are exactly a kind of double clutch gearbox lube systems
System volume control device.
Background technique
Country's gearbox mostly uses at present traditional is splashed lubricating system by dynamic crankshaft.It is now big because of double clutch gearbox
Amount application and skill upgrading, domestic main engine plants begin to use gearbox active lubrication system.Active lubrication system has lubrication effect
Rate is high, is influenced lesser advantage by high and low temperature environment.
Summary of the invention
The technical problem to be solved by the present invention is to gear box oil bottom case internal speed-changing case lubricating oil to act on through oil pump, passes through oil transportation
Pipe reaches each oil site and lubricates gearbox gears.If only one oil site, flow depends on oil pump at oil site
Flow.But when multiple oil sites, the flow to each lubrication is needed to control: should guarantee the normal of gear at each oil site
Lubrication, will also guarantee the cooling under limiting condition in gearbox.
Double loop lubricating system, the fuel-displaced latter circuit of oil pump lead at motor, and in addition a circuit leads to gear-box.When
It, need to be to gear at double clutch motor for the normal lubrication and cooling for guaranteeing gear-box when limiting condition oil pump output oil amount maximum
Oil site flow is limited, and is guaranteeing that normal lubrication circumstances down-off is small as far as possible at this.
In order to solve the above technical problems, the present invention uses following technological means:
A kind of double clutch gearbox lubricating system volume control device, including flow valve, the flow valve be equipped with
The cavity that end cap, outer housing and seal member surround；Piston and spool are equipped in the cavity, piston connects elastomeric element,
The piston is equipped at least two metering orifices, and the piston includes mainstream metering-orifice, by-pass prot, spool chamber, spring boss
For secure resilient member, the spool chamber is cylindrical structure, and the spool is arranged in spool chamber, and spool passed through
Cooperation of being full of is fixed in cavity, and spool controls the opening and closing of mainstream metering-orifice.
Preferably, the further technical solution of the present invention is:
The seal member is O-ring.The function of sealing, but O-ring also may be implemented in other rubber rings such as apron
It is that sealing effect is best.
The elastomeric element is setting spring in the cavity, on the inside of one end connection end cap of spring, spring it is another
Hold connecting spring boss.Spring plays limit and resets effect.
The end cap and outer housing passes through the internal screw thread that the inner surface and the outer surface is arranged in and external screw thread is cooperatively connected.It is logical
The cooperation of internal and external threads is crossed, end cap and outer housing are tightly connected, inside forms cavity.
The flow valve is set on motor lubricating loop, and motor lubricating loop one end connects motor, one end connection oil
Pump, gearbox lubrication circuit one end tooth connection roller box, one end connect oil pump, oil pump connect gear box oil, motor lubricating loop and
Gearbox lubrication circuit forms lubricating system.
The present invention is suitable for dual lubrication circuit system after oil pump.By valve assembly in the lubricating loop for wherein leading to motor
In.Under normal circumstances, the valve is in the open state, towards motor at lubricating oil and can be played towards wheel lubricating oil in gear-box good
The function of good lubrication and cooling.But when gearbox work is frequently or under limiting condition, to guarantee inner gear of the gear box
Normal lubrication and cooling, it is necessary to the flow of lubrication that lead to motor will be limited under certain flow.
1. the application of the valve, it is ensured that gear of the double-lubrication oil way system at normal vehicle operation middle gear case and motor
Effectively it can be lubricated and be cooled down
2. under gearbox shift hunting and limiting condition, it is ensured that the lubrication and cooling of gearbox medium gear.Prevent because
The problems such as lubricating gear failure caused by shortage of oil
3. the design of by-pass prot ensures under gearbox shift hunting and limiting condition, the effectively lubricating of gear at motor
And it is cooling.
4. the valve body structure is compact, solve the problems, such as that position and narrow space are not easy to assemble at gearbox.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of specific embodiment of flow valve of the invention.
Fig. 2 is a kind of structural schematic diagram of specific embodiment of piston of the invention.
Fig. 3 is the principle of the present invention structural block diagram.
Description of symbols: 1- end cap；2- outer housing；3- piston；4- spool；5- spring；6-O type circle；7- bullet
Spring boss；8- spool chamber；9- by-pass prot；10- mainstream metering-orifice.
Specific embodiment
Below with reference to embodiment, the present invention is further illustrated.
Referring to Fig. 1 it is found that inventive flow valve is made of end cap 1, outer housing 2, piston 3, spool 4, spring 5, O-ring 6.
Spool 4 is fixed in the inner cavity of end cap 1 by interference fit, one end of spring 5 in conjunction with 1 inner cavity of end cap, the other end with
Cooperate at 3 boss of piston.Being threadedly engaged by inner and outer surfaces with outer housing 2 of end cap 1.O-ring 6 seals, and prevents work
Oil leakage during work.
Fig. 2 it is found that piston 3 of the invention is hollow cylindrical structure, by mainstream metering-orifice 10, by-pass prot 9, spool chamber 8,
Spring is formed with boss 7.Wherein mainstream metering-orifice 10 and spool 4 cooperate, and play the role of working connection switching.By-pass prot 9 is normally opened
Hole.Spring boss 7 plays the role of assembling fixed spring 5.
Spring 5 is in compressive state because of the relative positional relationship of piston 3 and end cap 1 in the case of assembly, and piston 3 is because of spring 5
Pretightning force is in diagram left end position.Mainstream metering-orifice 10 and spool 4 are in the open state in piston 3, and centre is formed between annular
Gap passes through convenient for lubricating oil.
Under gearbox normal operation, lubricating oil enters from left end oil inlet, passes through mainstream metering-orifice 10 and by-pass prot
9, it is flowed out through right side oil outlet.
When oil pump flow increases, the flow of lubrication for flowing into the valve body is increased, and the pressure for acting on 3 section of piston also increases
Add.When oil pressure is less than 5 pretightning force of spring, piston 3 is not moved, and mainstream metering-orifice 10 and spool 4 continue starting, and lubricating oil passes through annular
Gap and by-passing valve outflow.
When flow continues to increase, when acting on the oil pressure active force of 3 section of piston and being greater than the pretightning force of spring 5, piston 3 to
It moves right, gap becomes smaller between mainstream metering-orifice 10 and spool 4, but still has lubricating oil to flow out by annular gap.
When flow is sufficiently large or oil pump is in limiting condition, and piston 3 continues right lateral, and mainstream metering-orifice 10 and spool 4 are closed.
Lubricating oil only passes through by-pass prot 9 and flows out.
Fig. 3 it is found that the solution principle that flow valve is not added be lubricating oil from oil sump after oil pump pressurizes, pass through gear
Case lubricating loop, motor lubricating loop reach in gear-box and motor, lubricate corresponding gear and bearing.
The oil pump capacity of oil pump is bigger, and the flow in gearbox lubrication circuit and motor lubricating loop is also bigger.And gear-box
The flow proportional of lubricating loop and motor lubricating loop be it is constant, depend primarily on two end loops length and circuit it is interior
Diameter.
Such as: the internal diameter in two sections of circuits and length setting when original design, when oil pump oil pump capacity is 1L/min, motor profit
The flow for sliding back to road is 0.2L/min, and the flow in gearbox lubrication circuit is 0.8L/min.
When oil pump oil pump capacity increases to 5L/min, the flow of motor lubricating loop is 1L/min, gearbox lubrication circuit
Flow be 4L/min. and so on.Motor lubricating loop and the flow proportional in gearbox lubrication circuit are constant.This just makes
The lubricating oil that motor internal gear normally lubricates and cooling is required is had exceeded at the flow of motor lubricating loop in other instances
Amount, but the flow in gearbox lubrication circuit is lower than the lubricants capacity that inner gear of the gear box normally lubricates and cooling is required, causes
Inner gear of the gear box premature breakdown.
The solution principle that joined flow valve is the mechanically normally opened flow fusing valve of flow valve.In lubricating loop, two
End is connect by screw thread with circuit pipe fitting.
When oil pump oil pump capacity is smaller, flow valve is in the open state, and lubricating oil after oil pump pressurizes, passes through from oil sump
Motor lubricating loop, gearbox lubrication circuit reach in gear-box and motor, lubricate corresponding gear and bearing.Such as work as oil pump
When oil pump capacity is 1L/min, the flow of motor lubricating loop is 0.2L/min, and the flow in gearbox lubrication circuit is 0.8L/min.
When oil pump oil pump capacity increases, by the oil mass of motor lubricating loop, i.e. being up to limit value (acts on the work of piston 3
Firmly it is equal to the pretightning force of spring 5), flow valve working connection is the flow before closing are as follows: when oil pump oil pump capacity is 7.5L/min,
The flow of motor lubricating loop is 1.5L/min, and the flow in gearbox lubrication circuit is 6L/min.
When oil pump oil pump capacity continues growing, limit value is reached by the oil mass of motor lubricating loop and (acts on the work of piston 3
Firmly it is greater than the pretightning force of spring 5), the working connection of flow valve is closed, and lubricating oil is only capable of entering in motor by bleed off circuit,
The metered flow of bleed off circuit is 1L/min.Whole system flow at this time are as follows:
1) when oil pump oil pump capacity is 8L/min, the flow of motor lubricating loop is 1L/min, the stream in gearbox lubrication circuit
Amount is 7L/min.
2) when oil pump oil pump capacity is 10L/min, the flow of motor lubricating loop is 1L/min, the stream in gearbox lubrication circuit
Amount is 9L/min.
3) when oil pump oil pump capacity is 12L/min, the flow of motor lubricating loop is 1L/min, the stream in gearbox lubrication circuit
Amount is 11L/min.
It can guarantee that the flow of motor lubricating loop remains at rationally in the case where oil pump metered flow is certain in this way
Range of flow in, while guaranteeing that the flow in gearbox lubrication circuit is big as far as possible, it is ensured that gearbox limiting condition lower gear
Case internal gear normally lubricates and cooling, avoids inner gear of the gear box premature breakdown.
Since the foregoing is merely a specific embodiment of the invention, but protection of the invention is without being limited thereto, any skill
The technical staff in art field it is contemplated that the equivalent variation or substitution of the technical program technical characteristic, all covers of the invention
Within protection scope.
Claims (6)
1. a kind of double clutch gearbox lubricating system volume control device, including flow valve, the flow valve is equipped with end
The cavity that lid, outer housing and seal member surround；It is characterized by: piston and spool are equipped in the cavity, piston connection
Elastomeric element, the piston are equipped at least two metering orifices, and the piston includes mainstream metering-orifice, by-pass prot, spool chamber, bullet
Spring boss, the spool chamber are cylindrical structure, and the spool is arranged in spool chamber, and spool passes through interference fit dress
With being fixed in cavity, spool controls the opening and closing of mainstream metering-orifice, and the elastomeric element is the bullet of setting in the cavity
Spring, one end connection end cap inside of spring, the other end connecting spring boss of spring.
2. a kind of double clutch gearbox lubricating system volume control device according to claim 1, it is characterised in that: institute
The end cap and outer housing stated pass through the internal screw thread that the inner surface and the outer surface is arranged in and external screw thread is cooperatively connected.
3. a kind of double clutch gearbox lubricating system volume control device according to claim 1, it is characterised in that: institute
The flow valve stated is set on motor lubricating loop, and motor lubricating loop one end connects motor, and one end connects oil pump, gear-box profit
Road one end tooth connection roller box is slid back to, one end connects oil pump, and oil pump connects gear box oil, and motor lubricating loop and gearbox lubrication return
Road forms lubricating system.
4. a kind of double clutch gearbox lubricating system volume control device according to claim 3, it is characterised in that: institute
For the spring stated because the relative positional relationship of piston and end cap is in compressive state, piston is in left end position because of initial tension of spring
It sets, mainstream metering-orifice and spool are in the open state in piston, and centre forms annular gap.
5. a kind of working method of double clutch gearbox lubricating system volume control device according to claim 4, institute
The working method stated is as follows:
Under gearbox normal operation, lubricating oil enters from the oil inlet of outer housing left end, passes through mainstream metering-orifice and bypass
Hole, the oil outlet outflow through end cap right end；
When oil pump flow increases, the flow of lubrication for flowing into flow valve is increased, and the pressure for acting on piston section also increases, oil
When pressure is less than initial tension of spring, piston is not moved, and mainstream metering-orifice and spool continue starting, and lubricating oil passes through annular gap and bypass
Hole outflow；
When flow continues to increase, when acting on the oil pressure active force of piston section and being greater than the pretightning force of spring, piston moves right,
Mainstream metering-orifice and valve core chamber gap become smaller, but still have lubricating oil to flow out by annular gap；
When flow is sufficiently large or oil pump is in limiting condition, and piston continues right lateral, and mainstream metering-orifice and spool are closed, and lubricating oil is only
It is flowed out by by-pass prot.
6. a kind of double clutch gearbox lubricating system volume control device working method according to claim 5, special
Sign is: when the oil pump oil pump capacity is smaller, flow valve is in the open state, lubricating oil from oil sump after oil pump pressurizes,
It is reached in motor and gear-box by motor lubricating loop, gearbox lubrication circuit, lubricates corresponding gear and bearing, work as oil pump
When oil pump capacity is 1L/min, the flow of motor lubricating loop is 0.2L/min, and the flow in gearbox lubrication circuit is 0.8L/min；
When oil pump oil pump capacity increases, the oil mass by motor lubricating loop is to be up to limit value, and flow valve mainstream metering-orifice closes at this time
Flow before closing is when oil pump oil pump capacity is 7.5L/min, and the flow of motor lubricating loop is 1.5L/min, gearbox lubrication
The flow in circuit is 6L/min；
When oil pump oil pump capacity continues growing, limit value is reached by the oil mass of motor lubricating loop, the main flow bore closure of flow valve,
Lubricating oil is only capable of entering in motor by by-pass prot, and the metered flow of by-pass prot is 1L/min, at this time whole system flow are as follows:
1) when oil pump oil pump capacity is 8L/min, the flow of motor lubricating loop is 1L/min, and the flow in gearbox lubrication circuit is
7L/min；
2) when oil pump oil pump capacity is 10L/min, the flow of motor lubricating loop is 1L/min, and the flow in gearbox lubrication circuit is
9L/min；
3) when oil pump oil pump capacity is 12L/min, the flow of motor lubricating loop is 1L/min, and the flow in gearbox lubrication circuit is
11L/min。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610437208.9A CN105909770B (en) | 2016-06-17 | 2016-06-17 | A kind of double clutch gearbox lubricating system volume control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610437208.9A CN105909770B (en) | 2016-06-17 | 2016-06-17 | A kind of double clutch gearbox lubricating system volume control device |
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| Publication Number | Publication Date |
|---|---|
| CN105909770A CN105909770A (en) | 2016-08-31 |
| CN105909770B true CN105909770B (en) | 2019-03-15 |
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| CN201610437208.9A Active CN105909770B (en) | 2016-06-17 | 2016-06-17 | A kind of double clutch gearbox lubricating system volume control device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969251B (en) * | 2017-03-21 | 2019-05-24 | 宁波上中下自动变速器有限公司 | A kind of flow divider and its hydraulic system of lubrication for vehicle |
| CN109882582A (en) * | 2019-03-05 | 2019-06-14 | 宁波双驰电子有限公司 | A kind of double clutch gearbox active lubrication valve |
| CN110131394A (en) * | 2019-04-19 | 2019-08-16 | 浙江大行科技有限公司 | A kind of speed changing box lubricating system flow control valve |
| CN110206875A (en) * | 2019-04-29 | 2019-09-06 | 浙江大行科技有限公司 | A kind of speed changing box lubricating system flow control valve |
| CN111927944A (en) * | 2020-08-18 | 2020-11-13 | 广州汽车集团股份有限公司 | Transmission flow control method and device and storage medium |
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| US4437493A (en) * | 1981-08-19 | 1984-03-20 | Kuniteru Okuda | Constant flow control valve |
| US5215178A (en) * | 1991-03-25 | 1993-06-01 | Mcneilus Truck And Manufacturing, Inc. | Safety valve for discharge chutes on cement mixer |
| JP2000161512A (en) * | 1998-11-25 | 2000-06-16 | Saginomiya Seisakusho Inc | Constant flow rate valve |
| JP2006125558A (en) * | 2004-10-29 | 2006-05-18 | Koatsu Co Ltd | Constant flow valve |
| CN104747700A (en) * | 2015-03-25 | 2015-07-01 | 山东钢铁股份有限公司 | Gear box lubricating system |
| CN205689743U (en) * | 2016-06-17 | 2016-11-16 | 福士汽车零部件（济南）有限公司 | A kind of double clutch gearbox lubricating system volume control device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201568558U (en) * | 2009-12-07 | 2010-09-01 | 重庆齿轮箱有限责任公司 | Oil circuit lubricating system inside gearbox |
| CN202431941U (en) * | 2012-01-04 | 2012-09-12 | 安徽江淮汽车股份有限公司 | Forced cooling lubrication system used in double clutch automatic gearbox |
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2016
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4437493A (en) * | 1981-08-19 | 1984-03-20 | Kuniteru Okuda | Constant flow control valve |
| US5215178A (en) * | 1991-03-25 | 1993-06-01 | Mcneilus Truck And Manufacturing, Inc. | Safety valve for discharge chutes on cement mixer |
| JP2000161512A (en) * | 1998-11-25 | 2000-06-16 | Saginomiya Seisakusho Inc | Constant flow rate valve |
| JP2006125558A (en) * | 2004-10-29 | 2006-05-18 | Koatsu Co Ltd | Constant flow valve |
| CN104747700A (en) * | 2015-03-25 | 2015-07-01 | 山东钢铁股份有限公司 | Gear box lubricating system |
| CN205689743U (en) * | 2016-06-17 | 2016-11-16 | 福士汽车零部件（济南）有限公司 | A kind of double clutch gearbox lubricating system volume control device |
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| CN105909770A (en) | 2016-08-31 |
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