CN106369070A - Clutch lubrication structure and method - Google Patents
Clutch lubrication structure and method Download PDFInfo
- Publication number
- CN106369070A CN106369070A CN201610986381.4A CN201610986381A CN106369070A CN 106369070 A CN106369070 A CN 106369070A CN 201610986381 A CN201610986381 A CN 201610986381A CN 106369070 A CN106369070 A CN 106369070A
- Authority
- CN
- China
- Prior art keywords
- piston
- clutch
- antithesis piece
- oil duct
- friction plate
- 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.)
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Classifications
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D25/00—Fluid-actuated clutches
- F16D25/06—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch
- F16D25/062—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces
- F16D25/063—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially
- F16D25/0635—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially with flat friction surfaces, e.g. discs
- F16D25/0638—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially with flat friction surfaces, e.g. discs with more than two discs, e.g. multiple lamellae
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D25/00—Fluid-actuated clutches
- F16D25/12—Details not specific to one of the before-mentioned types
- F16D25/123—Details not specific to one of the before-mentioned types in view of cooling and lubrication
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
The invention discloses a clutch lubrication structure and method. The clutch lubrication structure comprises a backboard connected to a transmission housing and a piston housing. The installation space formed by the backboard and the piston housing is internally provided with first dual discs and friction plates alternately. A second dual disc is arranged on the outer side of the friction plate located at the tail end. The piston housing is internally provided with a piston used for pushing the second dual disc. A piston oil duct of the piston communicates with an oil inlet channel. The piston is internally provided with a piston body which is matched with the piston oil duct. A back base used for pushing the second dual disc is arranged on the rear side of the piston body. A compression spring is arranged between the piston body and the back base. By means of the clutch lubrication structure and method, selective lubrication of a clutch can be realized, in other words, lubricating oil is available at the engaged stage of the clutch; however, no lubricating oil exists when the clutch does not work or after work of the clutch is completed; and therefore the dragging loss of the clutch can be reduced, design flow of an oil pump is lowered, and the transmission efficiency is improved.
Description
Technical field
The invention belongs to clutch field is and in particular to a kind of clutch lubrication structure and method.
Background technology
The main cause of impact life of clutch has abrasion and ablation, and therefore, sufficient lubrication is essential, and lubricating oil
Sustainable supply requires the expenditure of energy, and when especially clutch does not work, substantial amounts of lubricating oil leads between friction plate and antithesis piece
Frictional resistance is larger, and referred to as towing loss, thus reduce variator whole efficiency.Clutch combines starting stage, friction plate
Box antithesis piece Relative friction acutely, and produces substantial amounts of heat, and combination does not produce friction and heat after finishing substantially.
But the lubricating system generally adopting at present includes centrifugal lubrication and forced feed lubrication.Centrifugal lubricating mode is it is impossible to realize
Selectivity lubricates, and clutch work is consistent with lubrication oil supply amount when not working, and reduces transmission efficiency；Though forced feed lubrication mode
Selectivity lubrication can be realized by controller, but need to use control valve, and independent lubricant passage way, increase cost more.
Content of the invention
It is an object of the invention to provide a kind of clutch lubrication structure and method, to overcome above-mentioned prior art to exist
Defect, the present invention can realize clutch selectivity lubrication, that is, clutch combination stage has lubricating oil, and clutch does not work or
Non lubricant oil after the completion of clutch work, can reduce clutch towing loss, and reduce oil pump design discharge, improve variator
Efficiency.
For reaching above-mentioned purpose, the present invention adopts the following technical scheme that
A kind of clutch lubrication structure, including the backboard being connected on case of transmission and piston shell, backboard and piston
It has been arranged alternately the first antithesis piece and friction plate in the installing space that housing is formed, be provided with outside the friction plate of end
Second antithesis piece, is provided with the piston for promoting the second antithesis piece, the piston oil duct of piston and oil inlet passage in piston shell
Connection, is provided with the piston only with the cooperation of piston oil duct in piston, the rear side of piston only is provided with second right for promoting
The back seat of even piece, is provided with compression spring between piston only and back seat.
Further, the second antithesis piece is with diameter greater than the diameter of the first antithesis piece and friction plate, the second antithesis piece and backboard
Between be provided with return spring.
Further, the friction plate internal tooth of friction plate is connected with braked part.
Further, the end of back seat is arranged with circlip.
Further, the first antithesis piece external tooth of the first antithesis piece and the second antithesis piece external tooth of the second antithesis piece and piston
The internal tooth of housing is connected.
Further, backboard and piston shell are bolted on case of transmission.
Further, the center of back seat has oilhole, and oilhole is connected with the second antithesis piece oil duct of the second antithesis piece.
A kind of clutch lubrication method, when clutch does not work, piston only blocks piston under compression spring effect
Oil duct, lubricating oil can not reach the first antithesis piece oil duct of the first antithesis piece and the friction plate oil duct of friction plate, and then realize from
When clutch does not work, non lubricant oil between antithesis piece and friction plate；
When clutch works, lubricating oil reaches piston only, when oil pressure reaches marginal value, piston through piston oil duct
Body overcomes compression spring active force, and piston oil duct is opened, and it is right that the centre bore through piston oil duct and back seat for the lubricating oil reaches second
Even piece oil duct, friction plate oil duct and the first antithesis piece oil duct and then lubrication antithesis piece and friction plate, and take away Relative friction generation
Heat.
Compared with prior art, the present invention has a following beneficial technique effect:
Apparatus of the present invention are provided with the piston only with the cooperation of piston oil duct in piston, and the rear side of piston only is provided with
For promoting the back seat of the second antithesis piece, between piston only and back seat, it is provided with compression spring, during clutch work, piston only
Open piston oil duct, after the completion of clutch does not work or works, piston only blocks piston oil duct, it is possible to achieve clutch selects
Property lubrication, that is, clutch combination stage has lubricating oil, and clutch does not work or clutch work after the completion of non lubricant oil, and
Structure is simple, and it is convenient to realize, and is not required to independent lubrication channel, will brake and lubricant passage way unification, and lubricate into respect to automatically controlled selectivity
This is relatively low.
Further, be provided with return spring between the second antithesis piece and backboard, for assist the first antithesis piece, friction plate with
And second antithesis piece return.
Further, the end of back seat is arranged with circlip, in order to limit the axial movement of back seat.
The inventive method combines a large amount of lubricating oil of starting stage offer in clutch, and clutch does not work or clutch knot
Conjunction reduces lubrication oil supply amount after finishing, and not only can meet clutch lubrication demand moreover it is possible to improve variator whole efficiency, real
Existing above-mentioned selectivity lubrication can reduce clutch towing loss, and reduces oil pump design discharge, improves transmission efficiency.
Brief description
Fig. 1 is the lubrication system schematic diagram of the present invention；
Fig. 2 is the second antithesis piece structural representation；
Fig. 3 is the first antithesis piece structural representation；
Fig. 4 is friction plate structure schematic diagram；
Fig. 5 is the relative maximum oil duct installation diagram of friction plate and the first antithesis piece；
Fig. 6 is the relatively minimal oil duct installation diagram of friction plate and the first antithesis piece.
Wherein, 1. oil inlet passage；2. piston shell；3. piston only；4. compression spring；5. piston；6. back seat；7. elasticity
Back-up ring；8. case of transmission；9. return spring；10. backboard；11. bolts；12. friction plates；13. first antithesis pieces；14. are made
Moving part；15. first antithesis piece oil ducts；16. second antithesis pieces；17. friction plate oil ducts；18. second antithesis piece oil ducts；19. pistons
Oil duct；20. second antithesis piece external tooths；21. first antithesis piece external tooths；22. friction plate internal tooths；23. relative maximum oil ducts；24. phases
To minimum oil duct.
Specific embodiment
Below in conjunction with the accompanying drawings the present invention is described in further detail:
Referring to Fig. 1-Fig. 6, a kind of clutch lubrication structure, including the back of the body being connected to by bolt 11 on case of transmission 8
It has been arranged alternately the first antithesis piece 13 in the installing space that plate 10 and piston shell 2, backboard 10 and piston shell 2 are formed and rubbed
Pad 12, is provided with the second antithesis piece 16, the first antithesis piece external tooth of the first antithesis piece 13 outside the friction plate 12 of end
21 and second second antithesis piece external tooth 20 of antithesis piece 16 be connected with the internal tooth of piston shell 2, the second antithesis piece 16 diameter
More than the diameter of the first antithesis piece 13 and friction plate 12, between the second antithesis piece 16 and backboard 10, it is provided with return spring 9, friction plate
12 friction plate internal tooth 22 is connected with braked part 14, is provided with the piston for promoting the second antithesis piece 16 in piston shell 2
5, the piston oil duct 19 of piston 5 is connected with oil inlet passage 1, is provided with the piston only 3 with piston oil duct 19 cooperation in piston 5,
The rear side of piston only 3 is provided with the back seat 6 for promoting the second antithesis piece 16, is provided with compression between piston only 3 and back seat 6
Spring 4, the end of back seat 6 is arranged with circlip 7, and the center of back seat 6 has an oilhole, and the of oilhole and the second antithesis piece 16
Two antithesis piece oil ducts 18 connect.
A kind of clutch lubrication method, when clutch does not work, piston only 3 blocks work under compression spring 4 effect
Plug oil duct 19, lubricating oil can not reach the first antithesis piece oil duct 15 of the first antithesis piece 13 and the friction plate oil duct of friction plate 12
17, and then when realizing clutch and not working, non lubricant oil between antithesis piece 13 and friction plate 12；
When clutch works, lubricating oil reaches piston only 3 through piston oil duct 19, when oil pressure reaches marginal value,
Piston only 3 overcomes compression spring 4 active force, and piston oil duct 19 is opened, the centre bore through piston oil duct 19 and back seat 7 for the lubricating oil
Reach the second antithesis piece oil duct 18, friction plate oil duct 17 and the first antithesis piece oil duct 15 and then lubricate antithesis piece 13 and friction plate
12.
Below the implementation process of the present invention is described in further detail:
The backboard 10 of the present invention, piston shell 2 are connected on case of transmission 8 by bolt 11, described second antithesis piece
16 the second antithesis piece external tooth 20 and the first antithesis piece external tooth 21 of the first antithesis piece 13 are combined with the internal tooth of piston shell 2, phase
Case of transmission 8 is no rotated but can slide axially.
Return spring 9 one end is connected with the second antithesis piece 16, and the other end is connected with backboard 10, described first antithesis piece 13 with
The assembling of friction plate 12 interval, both can relatively rotate, and the first antithesis piece oil duct 15 and friction plate oil duct 17 are in relative rotational motion
In, relative maximum oil duct 23 and relatively minimal oil duct 24 in oil duct sectional area.Friction plate internal tooth 22 is connected with braked part 14,
Can rotate together with braked part 14.
Lubricating oil reaches the right side of piston 5 through oil inlet passage 1, and when pressure reaches certain value, piston 5 overcomes return spring
9 spring forces are moved to the left, and promote the second antithesis piece 16, return spring 9 to the first antithesis piece 13 to contact with friction plate 12 and produce
Frictional force, raises with lubricating oil pressure, frictional force is increasing finally to make the first antithesis piece 13 rotate together with friction plate 12,
Relatively rotate disappearance；Between first antithesis piece 13 and friction plate 12, gap also disappears therewith.After lubricating oil pressure revocation, second is right
Even piece 16 and piston 5 return under return spring 9 effect, the first antithesis piece 13 and friction plate 12 relatively rotate, and frictional force disappears.
Compression spring 4 one end is connected with piston only 3, and the other end is connected with back seat 6, and back seat 6, compression spring 4, piston are originally
Body 3 is arranged in inside piston 5, limits back seat 6 with circlip 7 and moves axially, back seat 6 center has oilhole.
When clutch does not work, described piston only 3 blocks piston oil duct 19, lubricating oil under compression spring 4 effect
When can not reach the first antithesis piece oil duct 15 and friction plate oil duct 17, and then realize clutch and do not work, the first antithesis piece 13 He
Non lubricant oil between friction plate 12.
When clutch works, lubricating oil can reach piston only 3 through piston oil duct 19, when oil pressure reaches certain value
When, reach piston only 3 and overcome compression spring 4 active force to move to left, piston oil duct 19 is opened, and lubricating oil is through piston oil duct 19, back seat 7
Centre bore reach the second antithesis piece oil duct 18, friction plate oil duct 17 and the first antithesis piece oil duct 15 and then lubricate to the first even piece
13 and friction plate 12, and take away the heat of Relative friction generation.
, under the effect of piston 5 pressure, both gaps are less and less, when between the two no for first antithesis piece 13 and friction plate 12
When relatively rotating, all oil ducts form airtight cavity (having very thin oil duct on backboard 10), and the pressure in oil duct can raise, and works as pressure
When power is increased to suitable with oil inlet passage 1 pressure, piston only 3 the right and left pressure is equal, and piston only 3 is in compression spring 4
Move to right under effect, seal piston oil duct 19, lubrication channel blocks, realize non lubricant oil after the completion of braking.
Claims (8)
1. a kind of clutch lubrication structure is it is characterised in that include backboard (10) and the piston being connected on case of transmission (8)
It has been arranged alternately the first antithesis piece (13) and friction in the installing space that housing (2), backboard (10) and piston shell (2) are formed
Piece (12), is provided with the second antithesis piece (16) outside the friction plate (12) of end, and piston shell is provided with for pushing away in (2)
The piston (5) of dynamic second antithesis piece (16), the piston oil duct (19) of piston (5) is connected with oil inlet passage (1), and piston sets in (5)
It is equipped with the piston only (3) coordinating with piston oil duct (19), the rear side of piston only (3) is provided with for promoting the second antithesis piece
(16) back seat (6), is provided with compression spring (4) between piston only (3) and back seat (6).
2. a kind of clutch lubrication structure according to claim 1 it is characterised in that the second antithesis piece (16) with diameter greater than
First antithesis piece (13) and the diameter of friction plate (12), are provided with return spring (9) between the second antithesis piece (16) and backboard (10).
3. a kind of clutch lubrication structure according to claim 1 is it is characterised in that the friction plate internal tooth of friction plate (12)
(22) it is connected with braked part (14).
4. a kind of clutch lubrication structure according to claim 1 is it is characterised in that the end of back seat (6) is arranged with bullet
Property back-up ring (7).
5. a kind of clutch lubrication structure according to claim 1 is it is characterised in that the first couple of the first antithesis piece (13)
Second antithesis piece external tooth (20) of even piece external tooth (21) and the second antithesis piece (16) and the internal tooth of piston shell (2) are connected.
6. a kind of clutch lubrication structure according to claim 1 is it is characterised in that backboard (10) and piston shell (2)
It is connected on case of transmission (8) by bolt (11).
7. a kind of clutch lubrication structure according to claim 1 is it is characterised in that the center of back seat (6) has oilhole,
And oilhole is connected with the second antithesis piece oil duct (18) of the second antithesis piece (16).
8. a kind of clutch lubrication method of the clutch lubrication structure described in employing claim 1 is it is characterised in that work as clutch
When device does not work, piston only (3) blocks piston oil duct (19) under compression spring (4) effect, and lubricating oil can not reach first
First antithesis piece oil duct (15) of antithesis piece (13) and the friction plate oil duct (17) of friction plate (12), and then realize clutch not work
When making, non lubricant oil between antithesis piece (13) and friction plate (12)；
When clutch works, lubricating oil reaches piston only (3) through piston oil duct (19), when oil pressure reaches marginal value,
Piston only (3) overcomes compression spring (4) active force, and piston oil duct (19) is opened, and lubricating oil is through piston oil duct (19) and back seat
(7) centre bore reaches the second antithesis piece oil duct (18), friction plate oil duct (17) and the first antithesis piece oil duct (15) and then lubricates
Antithesis piece (13) and friction plate (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610986381.4A CN106369070B (en) | 2016-11-09 | 2016-11-09 | A kind of clutch lubrication structure and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610986381.4A CN106369070B (en) | 2016-11-09 | 2016-11-09 | A kind of clutch lubrication structure and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106369070A true CN106369070A (en) | 2017-02-01 |
| CN106369070B CN106369070B (en) | 2019-02-12 |
Family
ID=57894327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610986381.4A Active CN106369070B (en) | 2016-11-09 | 2016-11-09 | A kind of clutch lubrication structure and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106369070B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058321A (en) * | 2018-08-01 | 2018-12-21 | 格特拉克（江西）传动系统有限公司 | A kind of wet-type dual-clutch elastic piston reply structure |
| CN110686019A (en) * | 2019-09-25 | 2020-01-14 | 西安法士特汽车传动有限公司 | Self-adaptive lubricating system of clutch |
| CN114542620A (en) * | 2022-02-25 | 2022-05-27 | 西安双特智能传动有限公司 | Double-lubrication single-side friction material disc clutch |
| CN117948399A (en) * | 2024-03-27 | 2024-04-30 | 陕西法士特汽车传动集团有限责任公司 | Piston control multifunctional differential for agricultural machinery power shift transmission |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2331315A1 (en) * | 1973-06-20 | 1975-01-23 | Voith Getriebe Kg | Multi-plate clutch for gear box drive - provides cooling radial and spiral pressure supplied oil grooves in clutch plates |
| SU1180578A1 (en) * | 1984-05-08 | 1985-09-23 | Белорусский Ордена Трудового Красного Знамени Политехнический Институт | Friction clutch |
| US5495927A (en) * | 1994-06-24 | 1996-03-05 | General Motors Corporation | Controlled cooling apparatus for torque transfer devices |
| DE19734840A1 (en) * | 1997-08-12 | 1999-02-18 | Zahnradfabrik Friedrichshafen | Vehicle automatic gear box has clutch disk packet containing oil passages |
| KR20010066674A (en) * | 1999-12-31 | 2001-07-11 | 이계안 | Clutch Assembly for Automatic Transmission |
| RU2251632C1 (en) * | 2003-09-12 | 2005-05-10 | Московский государственный технический университет "МАМИ" | Force - cooled friction clutch |
| CN206274052U (en) * | 2016-11-09 | 2017-06-23 | 西安法士特汽车传动有限公司 | A kind of clutch lubrication structure |
-
2016
- 2016-11-09 CN CN201610986381.4A patent/CN106369070B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2331315A1 (en) * | 1973-06-20 | 1975-01-23 | Voith Getriebe Kg | Multi-plate clutch for gear box drive - provides cooling radial and spiral pressure supplied oil grooves in clutch plates |
| SU1180578A1 (en) * | 1984-05-08 | 1985-09-23 | Белорусский Ордена Трудового Красного Знамени Политехнический Институт | Friction clutch |
| US5495927A (en) * | 1994-06-24 | 1996-03-05 | General Motors Corporation | Controlled cooling apparatus for torque transfer devices |
| DE19734840A1 (en) * | 1997-08-12 | 1999-02-18 | Zahnradfabrik Friedrichshafen | Vehicle automatic gear box has clutch disk packet containing oil passages |
| KR20010066674A (en) * | 1999-12-31 | 2001-07-11 | 이계안 | Clutch Assembly for Automatic Transmission |
| RU2251632C1 (en) * | 2003-09-12 | 2005-05-10 | Московский государственный технический университет "МАМИ" | Force - cooled friction clutch |
| CN206274052U (en) * | 2016-11-09 | 2017-06-23 | 西安法士特汽车传动有限公司 | A kind of clutch lubrication structure |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058321A (en) * | 2018-08-01 | 2018-12-21 | 格特拉克（江西）传动系统有限公司 | A kind of wet-type dual-clutch elastic piston reply structure |
| CN110686019A (en) * | 2019-09-25 | 2020-01-14 | 西安法士特汽车传动有限公司 | Self-adaptive lubricating system of clutch |
| CN114542620A (en) * | 2022-02-25 | 2022-05-27 | 西安双特智能传动有限公司 | Double-lubrication single-side friction material disc clutch |
| CN117948399A (en) * | 2024-03-27 | 2024-04-30 | 陕西法士特汽车传动集团有限责任公司 | Piston control multifunctional differential for agricultural machinery power shift transmission |
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| Publication number | Publication date |
|---|---|
| CN106369070B (en) | 2019-02-12 |
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Inventor after: Xu Guojie Inventor after: Yan Jianbo Inventor after: Liu Yi Inventor after: Wang Yafeng Inventor after: Zhang Haitao Inventor after: Peng Liyin Inventor after: Ge Jingguang Inventor before: Xu Guojie Inventor before: Peng Liyin Inventor before: Ge Jingguang |
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