CN105909770A - Flow control device for lubricating system of dual-clutch transmission - Google Patents
Flow control device for lubricating system of dual-clutch transmission Download PDFInfo
- Publication number
- CN105909770A CN105909770A CN201610437208.9A CN201610437208A CN105909770A CN 105909770 A CN105909770 A CN 105909770A CN 201610437208 A CN201610437208 A CN 201610437208A CN 105909770 A CN105909770 A CN 105909770A
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- Prior art keywords
- control device
- piston
- flow
- gear
- lubricating system
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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
- 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 flow control device for a lubricating system of a dual-clutch transmission. The flow control device comprises a flow valve body. A flow valve is a cavity defined by an end cover, an outer shell and a sealing part. A piston and a valve element are arranged in the cavity. The piston is connected with an elastic part. At least two flow holes are formed in the piston. By means of the flow control device, it is ensured that gears at the position of a gearbox and the position of a motor of the double-lubricating-oil-way system can be effectively lubricated and cooled during normal running of a vehicle, and it is ensured that the gear in the gearbox is lubricated and cooled in the situation that the gearbox shifts gears frequently and the limiting condition exists. The problem that the gears are damaged due to insufficient lubricating oil is avoided, and it is ensured that the gear at the position of the motor can be effectively lubricated and cooled in the situation that the gearbox frequently shifts the gears and the limiting condition exists due to the design of a bypass hole. The structure of the valve body is compact, and the problems that the position and the space at the position of the gearbox are narrow, and assembly is not easy are solved.
Description
Technical field
The present invention relates to passenger-car gear box active lubrication field, be exactly a kind of double clutch gearbox lubricating system flow
Control device.
Background technology
The current many employings of domestic change speed gear box traditional by dynamic crankshaft splash lubrication mode.Now because of the extensive application of double clutch gearbox
And skill upgrading, domestic main engine plants begin to use change speed gear box active lubrication system.It is high that active lubrication system has lubricating efficiency, is subject to
The advantage that high and low temperature environment impact is less.
Summary of the invention
The technical problem to be solved in the present invention be gear box oil drain pan internal speed-changing case lubricating oil through oil pump effect, arrived by petroleum pipeline
Change speed gear box internal gear is lubricated by each oil site.If only one of which oil site, at oil site, flow depends on the flow of oil pump.But
When multiple oil site, need the flow of each lubrication is controlled: should ensure that each lubrication points out the normal lubrication of gear, also
Cooling in change speed gear box under limiting condition to be ensured.
Double loop lubricating system, the fuel-displaced rear loop of oil pump leads at motor, and an other loop leads to gear-box.Work as the limit
During operating mode oil pump oil transportation amount maximum, for ensureing normal lubrication and the cooling of gear-box, need to be to gear lubrication point at double clutch motor
Flow limits, and is ensureing that at this, normal lubrication circumstances down-off is the least.
For solving above-mentioned technical problem, the present invention uses following technological means:
A kind of double clutch gearbox lubricating system volume control device, including flow valve body, described flow valve is for being provided with end
The cavity that lid, shell body and seal member surround；Being provided with piston and spool in described cavity, piston connects elastomeric element, institute
The piston stated is provided with at least two metering orifices.
As preferably, the present invention further technical scheme is:
Described seal member is O.Other rubber rings such as apron can also realize the function sealed, but O is close
Envelope effect is best.
Described elastomeric element is the spring being arranged in cavity, and one end of spring connects inside end cap, and the other end of spring connects
At piston boss.Spring plays spacing and reset effect.
Described piston includes main flow metering-orifice, by-pass prot, spool chamber, spring boss, and described spool chamber is cylindrical structure.
Described spool is arranged in spool chamber, and spool is fixed in cavity by interference fit, and spool controls main flow metering-orifice
Open and close.
Described end cap and shell body are connected by the female thread and external screw thread being arranged on inner surface and outer surface.By inside and outside
The cooperation of screw thread, is tightly connected end cap and shell body, is internally formed cavity.
Described flow valve is arranged on motor gear lubricating loop, and motor gear lubricating loop one end connects motor, and one end connects
Oil pump, one end, gearbox lubrication loop connects gear-box, and one end connects oil pump, and oil pump connects gear box oil.
The present invention is applicable to dual lubrication circuit system after oil pump.This valve is assemblied in the lubricating loop wherein leading to motor.Normally
In the case of, this valve is in opening, lubricating oil and lead to and take turns lubricating oil in gear-box and all can play good lubrication at motor
And the function of cooling.But when change speed gear box work frequently or is under limiting condition, for ensureing the normal lubrication of inner gear of the gear box
And cooling, it is necessary to the flow of lubrication towards motor is limited under certain flow.
1. the application of this valve, it is ensured that double-lubrication oil way system gear at normal vehicle operation middle gear case and motor all can obtain
To effective lubrication and cooling
2. under change speed gear box shift hunting and limiting condition, it is ensured that the lubrication of gearbox medium gear and cooling.Prevent because of lubricating oil
The problems such as the gear failure that deficiency causes
3. the design of by-pass prot ensure that under change speed gear box shift hunting and limiting condition, the effectively lubricating of gear and cold at motor
But.
4. this valve body structure is compact, solves the problem that position and narrow space at change speed gear box are difficult to assembling.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of detailed description of the invention of flow valve of the present invention.
Fig. 2 is the structural representation of a kind of detailed description of the invention of piston of the present invention.
Fig. 3 is the theory structure block diagram of the present invention.
Description of reference numerals: 1-end cap；2-shell body；3-piston；4-spool；5-spring；6-O type circle；7-bullet
Spring boss；8-spool chamber；9-by-pass prot；10-main flow metering-orifice.
Detailed description of the invention
Below in conjunction with embodiment, further illustrate the present invention.
Seeing Fig. 1 to understand, inventive flow valve is by end cap 1, shell body 2, piston 3, spool 4, spring 5, O 6 groups
Become.Spool 4 is fixed in the inner chamber of end cap 1 by interference fit, and one end of spring 5 is combined, separately with end cap 1 inner chamber
One end coordinates at piston 3 boss.End cap 1 and the shell body 2 threaded engagement by inner and outer surfaces.O 6 sealing
Effect, prevents oil leakage in work process.
Fig. 2 understand, the piston 3 of the present invention is the cylindrical structure of hollow, by main flow metering-orifice 10, by-pass prot 9, spool chamber 8,
Spring boss 7 forms.Wherein main flow metering-orifice 10 coordinates with spool 4, plays the effect of working connection switching.By-pass prot 9
Normally opened hole.Spring boss 7 plays the effect of the fixing spring 5 of assembling.
In the case of assembling, spring 5 is in compressive state because of the relative position relation of piston 3 and end cap 1, and piston 3 is pre-because of spring 5
Clamp force is in diagram high order end position.In piston 3, main flow metering-orifice 10 and spool 4 are in opening, intermediate formation annular gap
It is easy to lubricating oil pass through.
Under change speed gear box normal operation, lubricating oil enters from left end oil-in, by main flow metering-orifice 10 and by-pass prot 9, warp
Right side oil-out flows out.
When oil pump flow increases, the flow of lubrication flowing to this valve body strengthens, and the pressure acting on piston 3 section also increases.
When oil pressure is less than spring 5 pretightning force, piston 3 does not moves, and main flow metering-orifice 10 and spool 4 continue on, and lubricating oil is by annular
Gap and bypass valve flow out.
When flow continues to increase, when acting on the oil pressure active force of piston 3 section more than the pretightning force of spring 5, piston 3 is to the right
Mobile, between main flow metering-orifice 10 and spool 4, gap diminishes, but still has lubricating oil to be flowed out by annular gap.
When flow is sufficiently large or oil pump is in limit state, piston 3 continues right lateral, main flow metering-orifice 10 and spool 4 and closes.Main
Traffic channel is closed, and only low discharge lubricating oil is flowed out by by-pass prot 9 and continues lubrication effect
Fig. 3 understands, and is lubricating oil from oil sump after oil pump pressurizes at the solution principle not adding flow valve, is moistened by gear-box
Slide back to road, motor lubricating loop arrives in gear-box and motor, lubricates corresponding gear and bearing.
The oil pump capacity of oil pump is the biggest, and the flow in gearbox lubrication loop and motor lubricating loop is the biggest.And gearbox lubrication returns
The flow proportional of road and motor lubricating loop is constant, depends primarily on the length of two end loops and the internal diameter in loop.
Such as: during original design, internal diameter and the length in two sections of loops set, when oil pump oil pump capacity is 1L/min, gearbox lubrication
The flow in loop is 0.2L/min, and the flow of motor lubricating loop is 0.8L/min.
When oil pump oil pump capacity increases to 5L/min, the flow in gearbox lubrication loop is 1L/min, the flow of motor lubricating loop
For 4L/min. by that analogy.The flow proportional of gearbox lubrication loop and motor lubricating loop is constant.This has resulted in
Lubricants capacity needed for the flow in gearbox lubrication loop normally lubricates beyond motor internal gear and cools down in the case of having, but electric
The flow of machine lubricating loop is lower than the lubricants capacity needed for inner gear of the gear box normally lubricates and cools down, and causes gear-box internal tooth
Wheel premature breakdown.
The solution principle adding flow valve is flow valve mechanical type normally opened flow fusing valve.Being contained in lubricating loop, two ends are passed through
Screw thread is connected with loop pipe joint.
When oil pump oil pump capacity is less, flow valve is in opening, and lubricating oil after oil pump pressurizes, passes through gear from oil sump
Case lubricating loop, motor lubricating loop arrive in gear-box and motor, lubricate corresponding gear and bearing.As when oil pump oil pump capacity
During for 1L/min, the flow in gearbox lubrication loop is 0.2L/min, and the flow of motor lubricating loop is 0.8L/min.
When oil pump oil pump capacity increases, i.e. it is up to limit value by the oil mass of motor lubricating loop and (i.e. acts on the active force of piston 3
Pretightning force equal to spring 5), flow valve working connection is that the flow before closing is: when oil pump oil pump capacity is 7.5L/min, tooth
The flow of roller box lubricating loop is 1.5L/min, and the flow of motor lubricating loop is 6L/min.
When oil pump oil pump capacity continues to increase, reach limit value by the oil mass of motor lubricating loop and (i.e. act on the active force of piston 3
Pretightning force more than spring 5), the working connection of flow valve is closed, and lubricating oil is only capable of entering in motor by bleed off circuit, other
The metered flow of logical oil circuit is 1L/min.Now whole system flow is:
1). when oil pump oil pump capacity is 8L/min, the flow in gearbox lubrication loop is 1L/min, and the flow of motor lubricating loop is
7L/min.
2). when oil pump oil pump capacity is 10L/min, the flow in gearbox lubrication loop is 1L/min, the flow of motor lubricating loop
For 9L/min.
3). when oil pump oil pump capacity is 12L/min, the flow in gearbox lubrication loop is 1L/min, the flow of motor lubricating loop
For 11L/min.
So can ensure in the case of oil pump metered flow is certain, the flow in gearbox lubrication loop remains at reasonably stream
In weight range, ensure that the flow of motor lubricating loop is the biggest, it is ensured that change speed gear box limiting condition lower tooth roller box internal gear simultaneously
Normal lubrication and cooling, it is to avoid inner gear of the gear box premature breakdown.
Owing to the foregoing is only the detailed description of the invention of the present invention, but the protection of the present invention is not limited to this, any the art
Technical staff it is contemplated that the change of equivalent of the technical program technical characteristic or replacement, all contain in protection scope of the present invention
Within.
Claims (7)
1. a double clutch gearbox lubricating system volume control device, including flow valve body, described flow valve for be provided with end cap,
The cavity that shell body and seal member surround；It is characterized in that: be provided with piston and spool in described cavity, piston connects elasticity
Parts, described piston is provided with at least two metering orifices.
A kind of double clutch gearbox lubricating system volume control device the most according to claim 1, it is characterised in that: described
Seal member is O.
A kind of double clutch gearbox lubricating system volume control device the most according to claim 1, it is characterised in that: described
Elastomeric element is the spring being arranged in cavity, and one end of spring connects inside end cap, and the other end of spring connects at piston boss.
A kind of double clutch gearbox lubricating system volume control device the most according to claim 1, it is characterised in that: described
Piston includes main flow metering-orifice, by-pass prot, spool chamber, spring boss, and described spool chamber is cylindrical structure.
A kind of double clutch gearbox lubricating system volume control device the most according to claim 1, it is characterised in that: described
Spool is arranged in spool chamber, and spool is fixed in cavity by interference fit, spool control main flow metering-orifice play open and close
Close.
A kind of double clutch gearbox lubricating system volume control device the most according to claim 1, it is characterised in that: described
End cap and shell body are connected by the female thread and external screw thread being arranged on inner surface and outer surface.
A kind of double clutch gearbox lubricating system volume control device the most according to claim 1, it is characterised in that: described
Flow valve is arranged on motor gear lubricating loop, and motor gear lubricating loop one end connects motor, and one end connects oil pump, gear
Case lubricating loop one end connects gear-box, and one end connects oil pump, and oil pump connects gear box oil.
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105909770A true CN105909770A (en) | 2016-08-31 |
| CN105909770B CN105909770B (en) | 2019-03-15 |
Family
ID=56750394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610437208.9A Active CN105909770B (en) | 2016-06-17 | 2016-06-17 | A kind of double clutch gearbox lubricating system volume control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105909770B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969251A (en) * | 2017-03-21 | 2017-07-21 | 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 |
Citations (8)
| 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 |
| 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 |
| 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 |
-
2016
- 2016-06-17 CN CN201610437208.9A patent/CN105909770B/en active Active
Patent Citations (8)
| 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 |
| 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 |
| 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 |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969251A (en) * | 2017-03-21 | 2017-07-21 | 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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105909770B (en) | 2019-03-15 |
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