CN102661331A - High/low-speed groove clutch friction plate - Google Patents
High/low-speed groove clutch friction plate Download PDFInfo
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- CN102661331A CN102661331A CN2012101437011A CN201210143701A CN102661331A CN 102661331 A CN102661331 A CN 102661331A CN 2012101437011 A CN2012101437011 A CN 2012101437011A CN 201210143701 A CN201210143701 A CN 201210143701A CN 102661331 A CN102661331 A CN 102661331A
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- friction plate
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- clutch friction
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Abstract
The invention belongs to the technical field of vehicle gearboxes and relates to a clutch friction plate, in particular to a high/low-speed groove clutch friction plate. Spiral grooves are formed on a circular ring surface of the clutch friction plate along the circumferential direction in equal distance; through grooves are formed along the radial direction of the clutch friction plate in equal distance; semi-through grooves are formed along the radial direction of the clutch friction plate in equal distance; and the through grooves and the semi-through grooves are formed at intervals and are communicated with the spiral grooves. In the joint process, the clutch friction plate has a lubricating function, large-area dry friction of the friction plate is avoided, and wear of the friction plate is reduced; and during an empty load, radial flow of oil is accelerated, and the probability of forming a complete oil film is reduced, so that the clutch friction plate has the advantage of reducing the drag torque at low speed.
Description
Technical field
The invention belongs to the vehicle gear box technical field, relate to a kind of clutch friction plate, particularly a kind of high low speed groove clutch friction plate.
Background technique
In existing technology, wet clutch is a kind of device that transmits and cut off moment of torsion that extensively adopts in the heavy-duty vehicle gearbox, and for increasing torque transmitted, multi-disc is formed usually.Along with the raising of heavy-duty vehicle engine speed and gearbox specific power, the friction plate of wet clutch and the speed difference of separating between the steel disc increase, thereby cause bigger band row's torque and power loss, influence the efficient of transmission system; Long-play causes the lubricant oil temperature rise to improve more easily, and lubricant oil decomposes rotten.Evidence; Because have free clearance between clutch friction plate and the separator, along with the further raising of speed difference, violent vibration can take place in friction plate and separator; Cause mutual collision friction; Cause violent rising, have a strong impact on transmission efficiency and lubricant life, more cause the inner vibration noise of gearbox with row's torque and power loss.
The cooling of wet clutch friction plate mainly is that lubricant oil flows through rubbing surface heat is taken away, and plays effect lubricated and cooling.Rubbing surface is designed with the Oil Guide groove usually, when zero load, plays the effect of frizing on the one hand, destroys complete oil film and forms, and reduces unloaded band row's torque and power loss; On the other hand, in engaging process, form grease channel, play the effect that cooling and friction material come off and drain.Along with the raising of clutch speed difference, the trench design of friction plate is most important, greatly the collision friction between influence band row torque, power loss and clutch friction plate.
Summary of the invention
The objective of the invention is to overcome the defective that exists in the existing technology; Design a kind of high low speed groove clutch friction plate; Lowering zero load band row torque, the power loss of clutch, and the collision friction can effectively suppress high speed the time, the transmission efficiency that improves gearbox with lower vibration noise.
To achieve these goals; Technological scheme of the present invention is a kind of high low speed groove clutch friction plate of design; Circumferentially equidistantly be provided with spiral chute in clutch friction plate toroidal surface upper edge; Radially equidistantly be provided with groove and half groove along clutch friction plate, said groove and half groove are set in distance, and said groove and half groove all connect with spiral chute.
The spiral fluted shape of cross section be the square, rectangular and trapezoidal in any, the spiral fluted degree of depth is 0.5mm, the spiral fluted width is 1～1.2mm, the spacing of adjacent spiral chute 3 is 5～6mm.
The shape of cross section of groove be square, rectangular and trapezoidal in any, the angle of inclination that the formation of groove and clutch friction plate center line is 0～45 °, the degree of depth of groove is 0.5mm, the width of groove is 8～10mm, quantity is 12.
The shape of cross section of half groove is any in square and the rectangular, and half groove and clutch friction plate 1 center line form 0～30 ° angle of inclination, and the degree of depth of half groove is 1～2mm, and the width of half groove is 8～10mm, and quantity is 12.
The present invention is achieved in that the circumferentially equidistantly distribution of spiral chute along clutch friction plate, is used for trapped fuel, and friction plate is lubricated in the assurance clutch's jointing process, makes clutch friction plate be in the mixed friction state; Groove is linked up internal diameter and external diameter, and radial equipartition is used for rapid oil extraction and frizing, reduces the band row torque under the lower-speed state; Half groove is linked up the internal diameter and the middle footpath of clutch friction plate, and being separated by with groove is uniformly distributed with, owing to change oily flow path direction, utilizes the inertia of oil stream that extra damping force is provided, the collision model of friction plate when suppressing high speed, the band row torque when reducing high speed.
Advantage of the present invention and beneficial effect are: one, spiral chute is unfavorable for oil extraction and reduces band row torque; But help trapped fuel and lubrication; Utilize the trapped fuel in the spiral chute for this reason, in engaging process, play and possess lubricated effect; Avoid the large-area dry friction of friction plate, reduce the wearing and tearing of friction plate; Two, groove is beneficial to oil extraction and frizing, when zero load, the Radial Flow of quickening fluid with reduce the chance that complete oil film forms, thereby band row torque when reducing low speed; Three, half groove is unfavorable for oil extraction; But can make full use of in the fluid high speed Radial Flow process, run into the sealing step, the flip-flop flow direction; Form the axial flow of oil stream; Increased the fluid damping between the clutch friction plate axial impact, the collision friction when having suppressed high speed greatly reduces band row's torque and power loss.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 for the A of Fig. 1 of the present invention to structural representation;
Fig. 3 for the B of Fig. 1 of the present invention to structural representation;
Fig. 4 for the C of Fig. 1 of the present invention to structural representation.
Wherein, 1-clutch friction plate; The 2-groove; The 3-spiral chute; 4-half groove.
Embodiment
Further describe below in conjunction with accompanying drawing and embodiment's specific embodiments of the invention, following examples only are used for technological scheme of the present invention more clearly is described, and can not limit protection scope of the present invention with this.
Extremely shown in Figure 4 like Fig. 1; The technological scheme of practical implementation of the present invention is: a kind of high low speed groove clutch friction plate; Circumferentially equidistantly be provided with spiral chute 3 in clutch friction plate 1 toroidal surface upper edge; Radially equidistantly be provided with groove 2 and half groove 4 along clutch friction plate 1, said groove 2 and half groove 4 are set in distance, and said groove 2 and half groove 4 all connect with spiral chute 3.
The shape of cross section of spiral chute 3 be the square, rectangular and trapezoidal in any, the degree of depth of spiral chute 3 is 0.5mm, the width of spiral chute 3 is 1～1.2mm, the spacing of adjacent spiral chute 3 is 5～6mm.
The shape of cross section of groove 2 be square, rectangular and trapezoidal in any, groove 2 forms 0～45 ° angle of inclination with clutch friction plate 1 center line, the degree of depth of groove 2 is 0.5mm, the width of groove 2 is 8～10mm, quantity is 12.
The shape of cross section of half groove 4 is any in square and the rectangular, and half groove 4 forms 0～30 ° angle of inclination with clutch friction plate 1 center line, and the degree of depth of half groove 4 is 1～2mm, and the width of half groove 4 is 8～10mm, and quantity is 12.
The above only is a preferential mode of execution of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from know-why of the present invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (4)
1. one kind high low speed groove clutch friction plate; It is characterized in that: circumferentially equidistantly be provided with spiral chute (3) in clutch friction plate (1) toroidal surface upper edge; Radially equidistantly be provided with groove (2) and half groove (4) along clutch friction plate (1); Said groove (2) and half groove (4) are set in distance, and said groove (2) and half groove (4) all connect with spiral chute (3).
2. a kind of high low speed groove clutch friction plate according to claim 1; It is characterized in that: the shape of cross section of spiral chute (3) for the square, rectangular and trapezoidal in any; The degree of depth of spiral chute (3) is 0.5mm; The width of spiral chute (3) is 1～1.2mm, and the spacing of adjacent spiral chute (3) is 5～6mm.
3. a kind of high low speed groove clutch friction plate according to claim 1 and 2; It is characterized in that: the shape of cross section of groove (2) for the square, rectangular and trapezoidal in any; Groove (2) forms 0～45 ° angle of inclination with clutch friction plate (1) center line; The degree of depth of groove (2) is 0.5mm, and the width of groove (2) is 8～10mm, and quantity is 12.
4. a kind of high low speed groove clutch friction plate according to claim 1 and 2; It is characterized in that: the shape of cross section of half groove (4) is any in square and the rectangular; Half groove (4) forms 0～30 ° angle of inclination with clutch friction plate (1) center line; The degree of depth of half groove (4) is 1～2mm, and the width of half groove (4) is 8～10mm, and quantity is 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101437011A CN102661331A (en) | 2012-05-09 | 2012-05-09 | High/low-speed groove clutch friction plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101437011A CN102661331A (en) | 2012-05-09 | 2012-05-09 | High/low-speed groove clutch friction plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102661331A true CN102661331A (en) | 2012-09-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101437011A Pending CN102661331A (en) | 2012-05-09 | 2012-05-09 | High/low-speed groove clutch friction plate |
Country Status (1)
| Country | Link |
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| CN (1) | CN102661331A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107771254A (en) * | 2015-07-30 | 2018-03-06 | 舍弗勒技术股份两合公司 | Friction means |
| CN109139733A (en) * | 2018-11-09 | 2019-01-04 | 中国船舶重工集团公司第七0三研究所 | A kind of high revolving speed friction element |
| CN114254440A (en) * | 2021-12-29 | 2022-03-29 | 武汉科技大学 | Method for optimizing groove-shaped line on surface of friction plate of wet clutch |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB663929A (en) * | 1949-03-09 | 1951-12-27 | Caterpillar Tractor Co | Wet plate clutch |
| US4027758A (en) * | 1974-11-15 | 1977-06-07 | Ab Bofors | Wet disc clutch and method of force cooling the same |
| JPS6131722A (en) * | 1984-07-20 | 1986-02-14 | Toyota Motor Corp | Clutch facing |
| US5176236A (en) * | 1992-01-09 | 1993-01-05 | Borg-Warner Automotive Transmission & Engine Components Corporation | Facing material for wet clutch plate and methods for fabricating and applying same |
| US7650977B2 (en) * | 2005-07-20 | 2010-01-26 | Nsk-Warner K.K. | Friction plate for wet-type multi-plate clutch |
| CN102162493A (en) * | 2010-02-22 | 2011-08-24 | 瓦莱奥摩擦材料公司 | Annular friction lining for a dry clutch |
-
2012
- 2012-05-09 CN CN2012101437011A patent/CN102661331A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB663929A (en) * | 1949-03-09 | 1951-12-27 | Caterpillar Tractor Co | Wet plate clutch |
| US4027758A (en) * | 1974-11-15 | 1977-06-07 | Ab Bofors | Wet disc clutch and method of force cooling the same |
| JPS6131722A (en) * | 1984-07-20 | 1986-02-14 | Toyota Motor Corp | Clutch facing |
| US5176236A (en) * | 1992-01-09 | 1993-01-05 | Borg-Warner Automotive Transmission & Engine Components Corporation | Facing material for wet clutch plate and methods for fabricating and applying same |
| US7650977B2 (en) * | 2005-07-20 | 2010-01-26 | Nsk-Warner K.K. | Friction plate for wet-type multi-plate clutch |
| CN102162493A (en) * | 2010-02-22 | 2011-08-24 | 瓦莱奥摩擦材料公司 | Annular friction lining for a dry clutch |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107771254A (en) * | 2015-07-30 | 2018-03-06 | 舍弗勒技术股份两合公司 | Friction means |
| CN107771254B (en) * | 2015-07-30 | 2020-12-04 | 舍弗勒技术股份两合公司 | Friction member |
| CN109139733A (en) * | 2018-11-09 | 2019-01-04 | 中国船舶重工集团公司第七0三研究所 | A kind of high revolving speed friction element |
| CN114254440A (en) * | 2021-12-29 | 2022-03-29 | 武汉科技大学 | Method for optimizing groove-shaped line on surface of friction plate of wet clutch |
| CN114254440B (en) * | 2021-12-29 | 2024-04-09 | 武汉科技大学 | Optimization method for groove-shaped line of oil groove on surface of friction plate of wet clutch |
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Application publication date: 20120912 |