CN104235225A - Miniature multiple-disc clutch - Google Patents

Miniature multiple-disc clutch Download PDF

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Publication number
CN104235225A
CN104235225A CN201410473574.0A CN201410473574A CN104235225A CN 104235225 A CN104235225 A CN 104235225A CN 201410473574 A CN201410473574 A CN 201410473574A CN 104235225 A CN104235225 A CN 104235225A
Authority
CN
China
Prior art keywords
clutch
disc
spline
free
outside friction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410473574.0A
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Chinese (zh)
Inventor
王新龙
钟燕
蒋越华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NINGBO JIELONG POWER SCIENCE & TECHNOLOGY Co Ltd
Original Assignee
NINGBO JIELONG POWER SCIENCE & TECHNOLOGY Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NINGBO JIELONG POWER SCIENCE & TECHNOLOGY Co Ltd filed Critical NINGBO JIELONG POWER SCIENCE & TECHNOLOGY Co Ltd
Priority to CN201410473574.0A priority Critical patent/CN104235225A/en
Publication of CN104235225A publication Critical patent/CN104235225A/en
Pending legal-status Critical Current

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Abstract

An ATM (automatic manual transmission) has the characteristics of low price, high cost performance and the like, but the popularization and the application of the technology are restrained by problems such as impact of shifting and unsmoothness of shifting. The invention discloses a miniature multiple-disc clutch. The miniature multiple-disc clutch replaces a synchronizer on the AMT to serve as a speed changing unit, and the stable shifting of gears is realized through sliding friction between an inside friction disc and an outside friction disc in the miniature clutch. The miniature multiple-disc clutch is used for replacing the synchronizer, a transmission shifting system structure can be greatly simplified, shifting control logic is simplified, and the miniature multiple-disc clutch has the characteristics of safe and reliable work, low cost and the like and can be widely applied to DCT (dual clutch transmission) and AMT systems.

Description

A kind of miniature multidisc clutch
Technical field
Patent of the present invention relates to the miniature multidisc clutch of the one that automatic transmission uses.The joint element of active part and secondary part adopts multi-disc friction sheet.This clutch assembly carrys out transferring power by friction plate.Passive fluted disc and outside friction disc are by spline joint, and free-sliding spline and inner attrition piece pass through spline joint.Free-sliding spline and output shaft are fixed together.Inner attrition piece and outside friction disc can realize relative movement under the driving of piston.Under separated state, inner attrition piece and outside friction disc relatively rotate, unpowered output between passive fluted disc and output shaft.When needs Power output, the oil pressure of hydraulic circuit raises, and forces piston to left movement, and interior outside friction disc contacts with each other compression, and power is passed to output shaft through passive fluted disc, outside friction disc, inner attrition piece, free-sliding spline by power.
Background technique
What extensively adopt on automobile at present is the friction clutch (referred to as friction clutch) using spring compression.The torque that motor sends, by the rubbing action of flywheel and platen and driven disc surface of contact, passes to driven disc.When driver's let slip the clutch, by the transmission of parts, move after making diaphragm spring large end band dynamic pressure dish, now secondary part is separated with active part.
Clutch is can by need of work at any time by mechanical parts that driving shaft engages with driven shaft or is separated.Can be used to operate machine the starting of transmission system, stopping, speed change and commutation etc.Clutch is of a great variety, can be divided into according to job specification: 1. control type clutch.Its method of operating have machinery, electromagnetism, pneumatic with fluid power etc., as embedded clutch (the chimeric transmitting torque by tooth, tooth or key), friction clutch (utilizing frictional force transmitting torque), air flexible clutch (clutch engaging with the breathing of pressurized air tire to handle friction member or be separated), electromagnetic slip clutches (produce magnetic force with exciting curent and carry out transmitting torque), magnetic powder clutch (make magnetic magnetize with field coil, form magnetic chain with transmitting torque).2. automatic type clutch.Automatically complete with simple mechanical means and engage or separately action, (when transmitting torque reaches certain value, transmission shaft can be separated automatically to be divided into again safety clutch, thus prevent overload, strength member in machine is avoided to damage), centrifugal clutch is (when the rotating speed of driving shaft reaches certain value, make to connect voluntarily between transmission shaft due to the interaction energy of centrifugal force or can be separated voluntarily after exceeding a certain rotating speed), directional clutch (is free wheel device again, utilize engagement or the roller of ratchet-ratchet, the wedge action unidirectional delivery motion of voussoir or moment of torsion, when driving shaft reversion or rotating speed are lower than driven shaft, clutch just automatically separately).
The medium-to-high grade vehicle shifting system in market generally uses automatic gear shifting system, DCT(double-clutch automatic gearbox) owing to adopting double clutch construction, two clutch exchange work can realize gearshift steadily.But DCT still adopt synchronizer to realize transforming gear, adopt hydraulic pressure or pneumatic method control synchro work make it to realize from upper gear separations, presynchronization, synchronously, the process such as combination, gearshift procedure is selected to control very complicated, key technology is abroad in staff, and manufacture, the features such as maintenance cost is high, complex structure.The automation of AMT(manual transmission) be the simplest automatic transmission of one, have that cost is low, cost performance high.But the shift shock of AMT constrains the popularization of this technology.Patent of the present invention produces to solve the selecting shifting shock problem of AMT.In AMT system, adopt a kind of miniature multidisc clutch to replace synchronizer greatly can reduce the difficulty of control to the conversion realizing gear, transforming gear can be realized steady, with low cost, the features such as reliable performance.As adopted this miniature multidisc clutch can greatly simplify current Control system architecture on automatic transmission AMT, property of automatic shft is selected greatly to improve.
Summary of the invention
At present, client requires constantly to improve to the gearshift of speed changer device, requires all the more strict.Require that in power transmission transfer process, moment of torsion can not interrupt, moment of torsion exports steadily, solves shift process and impacts the key becoming automatic transmission application.
The technological scheme that patent of the present invention adopts is: the active part of clutch and secondary part carry out transmitting torque by the end-face friction of friction plate, can be separated between interior outside friction disc, also can engage gradually, mutually rotate between outside friction disc in allowing in cohesive process.Oil circuit pressurization is carried out when oil pump obtains instruction, pressure oil makes piston advances forward, pressing friction sheet, outside friction disc is connected with passive fluted disc, inner attrition piece is connected with free-sliding spline, and free-sliding spline is matched with output shaft by spline, and passive fluted disc is matched with output shaft by needle bearing, there is O RunddichtringO at piston two ends, ensure that the fluid in pistons work chamber does not leak.System medi-spring plays buffer function when friction plate combines, and ought friction plate needed to be separated, and the oil pressure pressure release in oil circuit, interior outside friction disc can realize being separated under spring force.
The beneficial effect of patent of the present invention is, adopt miniature multidisc clutch greatly can simplify gear selecting, gear change system structure to replace synchronizer, being rubbed by the cunning of interior outside friction disc to realize the smooth transition of Transmission gear.Particularly in AMT system as adopt two miniature multidisc clutches replace synchronizer, rubbed by the cunning between clutch, just can realize good shift quality.Solve existing market to AMT shift shock and the complaint of gearshift poor performance.Realize the automatic transmission of a kind of low cost, high shift property.Simultaneity factor has the features such as volume is little, maintenance is convenient, system reliability is strong, low cost of manufacture, has wide market prospects.
Accompanying drawing explanation
The structure of patent of the present invention is further illustrated below in conjunction with accompanying drawing.
1. jump ring, 2. assembly oil circuit 3. output shaft bearing, 4. needle bearing, 5. assembly oil cylinder cover, 6. piston, 7. output shaft, 8. rubber o-ring, 9. assembly spring, 10. rubber o-ring, 11. outside friction discs, 12. inner attrition pieces, 13. packing rings, 14. free-sliding splines, 15. passive fluted discs, 16. output shaft guide pin bushings.
Embodiment
Introduce by reference to the accompanying drawings: oil circuit mouth (2) Bonding pressure oil pipe line, pressure oil imports into thus.The right of pressure oil action oil cylinder, the piston (6) promoting assembly is moved to the left, impel outside friction disc (11) and inner attrition piece (12) end contact, inner attrition piece (12) and free-sliding spline (14) pass through splined, free-sliding spline (14) is affixed with output shaft (7) again, outside friction disc (11) and passive fluted disc (15) by together with spline joint, passive fluted disc (15) with by rolling bearing (4) empty set on output shaft (7).When not needing power transmission, mutually slide between passive fluted disc (15) and output shaft, the power on passive fluted disc can not be transferred to output shaft.When needs power transmission, interior outside friction disc end contact, power passes to output shaft (7) by passive fluted disc (15), outside friction disc (11), inner attrition piece (12), free-sliding spline (14).The transmission of power circuit that such formation one is complete.Output bearing (3) is installed with and covers at assembly, and output shaft guide pin bushing (16) is installed with on casing, and oil cylinder cover (5) plays cylinder seal effect.Assembly spring (9) in conjunction with time play buffer function, simultaneously stored energy, when not needing transferring power, promotes oil cylinder to the right, interior outside friction disc is separated.
Fig. 1 is miniature multidisc clutch.

Claims (8)

1. a miniature multidisc clutch comprises: passive fluted disc, outside friction disc, inner attrition piece, free-sliding spline, needle bearing, output shaft, spring etc.; This clutch assembly carrys out transferring power by friction plate; Passive fluted disc and outside friction disc are by spline joint, and free-sliding spline and inner attrition piece pass through spline joint; Free-sliding spline and output shaft are fixed together by spline; Inner attrition piece and outside friction disc can realize relative movement under the driving of piston; Under separated state, inner attrition piece and outside friction disc relatively rotate, unpowered output between passive fluted disc and output shaft; When needs Power output, the oil pressure of hydraulic circuit raises, and forces piston to left movement, and interior outside friction disc contacts with each other compression, and power is passed to output shaft through passive fluted disc, outside friction disc, inner attrition piece, free-sliding spline by power.
2. clutch as claimed in claim 1, is characterized in that oil cylinder piston is promoted by external force oil pressure, its advantage thrust-neutral, and manipulation is convenient.
3. clutch as claimed in claim 1 is characterized in that oil cylinder is promoted by oil pressure, outside friction disc in oil cylinder extruding; Outside friction disc and passive fluted disc adopt spline joint, can left and right relative movement between outside friction disc and passive fluted disc.
4. clutch as claimed in claim 1, inner attrition piece adopts spline fitted mutually with free-sliding spline, can left and right relative movement between inner attrition piece and free-sliding spline.
5. clutch as claimed in claim 1, adopts spline fitted between free-sliding spline and output shaft, can not relative movement between free-sliding spline and output shaft.
6. clutch as claimed in claim 1, output shaft is matched by rolling bearing with passive fluted disc; When friction plate is separated, can relatively rotate both it, can not transferring power.
7. clutch as claimed in claim 1, the inside and outside of its oil cylinder all adopts O type rubber seal rings for seal, and pressure oil is not leaked.
8. clutch as claimed in claim 1, spring plays buffer function in friction plate engaging process; When not needing transferring power, oil cylinder resets under the action of the spring, and interior outside friction disc is separated.
CN201410473574.0A 2014-09-17 2014-09-17 Miniature multiple-disc clutch Pending CN104235225A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410473574.0A CN104235225A (en) 2014-09-17 2014-09-17 Miniature multiple-disc clutch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410473574.0A CN104235225A (en) 2014-09-17 2014-09-17 Miniature multiple-disc clutch

Publications (1)

Publication Number Publication Date
CN104235225A true CN104235225A (en) 2014-12-24

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CN201410473574.0A Pending CN104235225A (en) 2014-09-17 2014-09-17 Miniature multiple-disc clutch

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107687486A (en) * 2017-08-31 2018-02-13 芜湖禾丰离合器有限公司 A kind of hydraulic rotary joint mechanical drive clutch
CN111075853A (en) * 2019-12-31 2020-04-28 潍柴动力股份有限公司 Plate clutch

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5544105A (en) * 1978-09-19 1980-03-28 Ishikawajima Shibaura Kikai Kk Braking device of hydraulic clutch
CN101294606A (en) * 2007-04-25 2008-10-29 本田技研工业株式会社 Power unit for motorcycle
CN201884507U (en) * 2010-12-02 2011-06-29 中国一拖集团有限公司 Constant pressure wet-type multi-disc transfer case clutch for tractor
CN102996669A (en) * 2012-12-10 2013-03-27 北京理工大学 Clutch device for test bed with adjustable rated power
CN204186836U (en) * 2014-09-17 2015-03-04 宁波捷龙动力科技有限公司 A kind of miniature multidisc clutch

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5544105A (en) * 1978-09-19 1980-03-28 Ishikawajima Shibaura Kikai Kk Braking device of hydraulic clutch
CN101294606A (en) * 2007-04-25 2008-10-29 本田技研工业株式会社 Power unit for motorcycle
CN201884507U (en) * 2010-12-02 2011-06-29 中国一拖集团有限公司 Constant pressure wet-type multi-disc transfer case clutch for tractor
CN102996669A (en) * 2012-12-10 2013-03-27 北京理工大学 Clutch device for test bed with adjustable rated power
CN204186836U (en) * 2014-09-17 2015-03-04 宁波捷龙动力科技有限公司 A kind of miniature multidisc clutch

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107687486A (en) * 2017-08-31 2018-02-13 芜湖禾丰离合器有限公司 A kind of hydraulic rotary joint mechanical drive clutch
CN107687486B (en) * 2017-08-31 2019-07-02 芜湖禾丰离合器有限公司 A kind of hydraulic rotary joint mechanical drive clutch
CN111075853A (en) * 2019-12-31 2020-04-28 潍柴动力股份有限公司 Plate clutch

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Application publication date: 20141224