CN113883182A - Clutch pressure plate with heat dissipation structure - Google Patents
Clutch pressure plate with heat dissipation structure Download PDFInfo
- Publication number
- CN113883182A CN113883182A CN202111279809.9A CN202111279809A CN113883182A CN 113883182 A CN113883182 A CN 113883182A CN 202111279809 A CN202111279809 A CN 202111279809A CN 113883182 A CN113883182 A CN 113883182A
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- Prior art keywords
- heat dissipation
- pressure plate
- plane
- inclined plane
- dissipation ribs
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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
- F16D13/00—Friction clutches
- F16D13/58—Details
- F16D13/70—Pressure members, e.g. pressure plates, for clutch-plates or lamellae; Guiding arrangements for pressure members
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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
- F16D13/00—Friction clutches
- F16D13/58—Details
- F16D13/72—Features relating to cooling
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
The invention discloses a clutch pressure plate with a heat dissipation structure, belonging to the technical field of automobile dry friction type clutches, comprising a pressure plate body, a plurality of large heat dissipation ribs and small heat dissipation ribs are uniformly distributed on the pressure plate body in the circumferential direction, tooth crest bosses with consistent cross sections are arranged on the same distribution circle on the large heat dissipation ribs and the small heat dissipation ribs, and the ventilation slots which are communicated in the radial direction of the pressure plate body are arranged between every two heat dissipation ribs and every two small heat dissipation ribs, so that the pressure plate body does not generate ventilation resistance, has turbulent flow effect, increases the speed of air flowing from the surface of the pressure plate, accelerates heat exchange, has excellent heat dissipation capacity under the condition that the surface area is not greatly increased, solves the contradiction between heat dissipation and strength, because the cross-sectional shapes of the tooth top bosses on the large heat dissipation ribs and the small heat dissipation ribs are the same and are in the same distribution circle, the clutch pressure plate processing production device has the advantages of being convenient to process and produce the clutch pressure plate and improving the production efficiency of the clutch pressure plate.
Description
Technical Field
The invention belongs to the technical field of automobile dry friction type clutches, and particularly relates to a clutch pressure plate with a heat dissipation structure.
Background
The automobile dry friction type clutch realizes the transmission and disconnection of power through the separation and the connection of the clutch. During the engagement process of the clutch, friction is generated until the engine and the transmission are synchronous due to the fact that the rotation speeds of the engine and the transmission shaft are inconsistent. This process generates a large amount of heat on the flywheel face, the platen face, and the friction plate. The heat is continuously increased, the temperature is correspondingly increased, and the flywheel, the pressure plate and the friction plate are overheated, so that the faults of ablation, deformation and the like are caused.
To solve this problem, two methods are currently used: firstly, the temperature rise speed is slowed down by increasing the heat capacity of the pressure plate, namely increasing the weight of the pressure plate; one is to increase the rate of heat dissipation by increasing the surface area. However, limited installation space, the weight of the platen is only marginally increased, and a large increase in surface area affects mechanical strength. The two methods are mutually contradictory and restricted, and how to balance is a difficult problem in the industry.
Therefore, in the prior art, in order to increase the heat dissipation effect of the clutch pressure plate, the heat dissipation clutch pressure plate and the clutch disclosed in the publication "CN 206682185U", which includes a pressure plate body, and a first bump and a second bump disposed on the pressure plate body, the first bump and the second bump are alternately spaced to form a heat dissipation channel, so that the ventilation space of the heat dissipation channel is large and the surface bearing area of the pressure plate body is not sacrificed as much as possible, thereby better balancing the heat dissipation performance of the clutch with the performance changes such as mechanical strength and structural stability, but when the product is produced, because the heights and widths of the first section, the second section, the third section and the fourth section on the first bump and the front section, the middle section and the rear section on the second bump are all inconsistent, the precision requirement on the casting mold is high during the production and processing, and the product is not easy to process, the production efficiency of the pressure plate is reduced, the inner side and the outer side of the first lug and the second lug are respectively in a wide-narrow structure staggered arrangement, and when the pressure plate is cooled, certain resistance is caused to wind flow of a cooling channel, so that the cooling effect is influenced.
Disclosure of Invention
The present invention is directed to a clutch pressure plate with a heat dissipation structure to solve the above problems.
In order to achieve the purpose, the invention provides the following technical scheme:
a clutch pressure plate with a heat dissipation structure comprises a pressure plate body, wherein a plurality of lug bosses are equidistantly arranged on the outer wall of the pressure plate body in the circumferential direction, a plurality of large heat dissipation ribs and small heat dissipation ribs are uniformly distributed on the pressure plate body in the circumferential direction, and ventilation grooves which are communicated with an inner ring of the pressure plate body and have the same size are formed between the large heat dissipation ribs and the small heat dissipation ribs at intervals;
the big heat dissipation rib and the small heat dissipation rib are provided with tooth crest bosses with consistent cross sections in the same distribution circle.
Furthermore, the bearing surface of the pressure plate body is a conical surface through the arrangement of the large heat dissipation ribs and the small heat dissipation ribs.
Further, big heat dissipation muscle and little heat dissipation muscle all are the outside wide inboard narrow and radial direction extend and locate on the pressure disk body.
Further, the addendum boss on the small heat dissipation rib comprises an inner side inclined surface and an outer side inclined surface, the top end of the inner side inclined surface is connected with the top end of the outer side inclined surface to form a cone, the inner side of the addendum boss is provided with an arc surface connected with the bottom end of the inner side inclined surface in an annular mode, and the outer side of the addendum boss is provided with a plane connected with the bottom of the outer side inclined surface in an annular mode.
Furthermore, the tooth top boss on the large heat dissipation rib comprises a second outer side inclined surface and a second inner side inclined surface, the top end of the second outer side inclined surface is connected with the top end of the second inner side inclined surface to form a cone, a second plane is connected with the bottom end of the second inner side inclined surface, a third plane is connected with the second outer side inclined surface, the second inclined surface is connected with the inner edge end of the second plane, the inner edge of the second inclined surface and the inner edge of the cambered surface are on the same horizontal plane, the planes are equal in height to the third plane, and a limiting pin hole in which a limiting pin is inserted is formed in the second plane arranged on one group of large heat dissipation ribs.
Further, pressure disk body circumference direction is width direction, the both ends of ventilation groove narrow with in the middle part.
The invention has the technical effects and advantages that: according to the clutch pressure plate with the heat dissipation structure, the ventilation grooves with the consistent size are formed on the pressure plate body through the large heat dissipation ribs and the small heat dissipation ribs at intervals, so that ventilation resistance is not generated, the turbulence effect is achieved, the speed of air flowing from the surface of the pressure plate is increased, heat exchange is accelerated, the excellent heat dissipation capacity is achieved under the condition that the surface area is not greatly increased, the contradiction between heat dissipation and strength is solved, and the die for casting production of the pressure plate body is convenient to process;
be the same addendum boss that distributes the circle and set up the addendum boss that has outside addendum boss and inboard addendum boss on big heat dissipation muscle and little heat dissipation muscle, when increasing heat radiating area, can not influence the bearing capacity of pressure disk body, because the addendum boss is same height, and the addendum boss on big heat dissipation muscle and the little heat dissipation muscle is same distribution circle, and the axle center of addendum boss is unanimous with the axle center of pressure disk body, increases the processing convenience to the addendum boss, does benefit to the rapid tooling production of pressure disk body.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a schematic longitudinal cross-sectional structure of the present invention;
FIG. 4 is a schematic view of the structure A-A of the present invention;
fig. 5 is a schematic cross-sectional structure view of the large heat dissipation rib and the small heat dissipation rib of the present invention.
In the figure: 1. a platen body; 2. lug bosses; 3. a large heat dissipation rib; 4. a small heat dissipation rib; 5. a ventilation slot; 6. tooth top bosses; 7. An inner side bevel; 8. an outer side bevel; 9. a cambered surface; 10. a plane; 11. a second outer side bevel; 12. a second inner side bevel; 13. a second plane; 14. a third plane; 15. a second inclined plane; 16. and limiting pin holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a clutch pressure plate with a heat dissipation structure as shown in figures 1-5, which comprises a pressure plate body 1, wherein a plurality of lug bosses 2 are equidistantly arranged on the outer wall of the pressure plate body 1 in the circumferential direction, a plurality of large heat dissipation ribs 3 and small heat dissipation ribs 4 are uniformly distributed on the pressure plate body 1 in the circumferential direction, and ventilation grooves 5 which are communicated with the inner ring of the pressure plate body 1 and have the same size are formed between the large heat dissipation ribs 3 and the small heat dissipation ribs 4 at intervals;
the big heat dissipation rib 3 and the small heat dissipation rib 4 are provided with tooth top bosses 6 with consistent cross sections in the same distribution circle.
The bearing surface of the pressure plate body 1 is a conical surface through the arrangement of the large heat dissipation ribs 3 and the small heat dissipation ribs 4. The thickness ratio between the inner ring and the outer ring of the pressure plate body 1 is 0.7-0.95.
Big heat dissipation muscle 3 and little heat dissipation muscle 4 all are the wide inboard narrow and radial direction extension in the outside and locate on pressure disk body 1. The width ratio of the widest part to the narrowest part of the large heat dissipation rib 3 is 1.5-2.2, and the width ratio of the widest part to the narrowest part of the small heat dissipation rib 4 is 2.0-3.0.
The tooth top boss 6 on the small heat dissipation rib 4 comprises an inner side inclined plane 7 and an outer side inclined plane 8, the top end of the inner side inclined plane 7 is connected with the top end of the outer side inclined plane 8 to form a cone, the inner side of the tooth top boss 6 is provided with an arc surface 9 connected with the bottom end of the inner side inclined plane 7 in an annular mode, the arc radius of the arc surface 9 is R180-R250, and the outer side of the tooth top boss 6 is provided with a plane 10 connected with the bottom of the outer side inclined plane 8 in an annular mode. The outer side of the outer side inclined plane 8 on the small heat dissipation rib 4 is provided with a plane 10, so that the tooth crest boss 6 is sequentially provided with a cambered surface 9 and the outer side inclined plane 8 which tend to be planar from the inner side to the outer side direction along the circle center, and the ratio of the maximum height from the conical surface of the pressure plate body 1 to the bottom of the pressure plate body 1 to the height from the plane 10 to the bottom of the pressure plate body 1 is 0.55-0.85 in the axial direction.
The tooth top boss 6 on the large heat dissipation rib 3 comprises a second outer side inclined surface 11 and a second inner side inclined surface 12, the top end of the second outer side inclined surface 11 is connected with the top of the second inner side inclined surface 12 to form a cone, the bottom end of the second inner side inclined surface 12 is connected with a second plane 13, the second outer side inclined surface 11 is connected with a third plane 14, the second inclined surface 15 is connected with the inner edge end of the second plane 13, the inner edge of the second inclined surface 15 and the inner edge of the cambered surface 9 are on the same horizontal plane, the plane 10 is equal in height to the third plane 14, and the second plane 13 arranged on one group of the large heat dissipation ribs 3 is provided with a limit pin hole 16 in which a limit pin is inserted. The addendum boss 6 on the big heat dissipation muscle 3 is the annular inclined plane of outer low interior height, big heat dissipation muscle 3 and little heat dissipation muscle 4 are the radial circular arc such as section in the anticlockwise projection of side, the clockwise face of big heat dissipation muscle 3 is connected the constitution by the multistage circular arc is tangent in the axial, wherein, the projection circular arc size that second plane 13 on the inboard inclined plane 12 of second that sets up on the big heat dissipation muscle 3 corresponds is R14 ~ R25, big heat dissipation muscle 3 and little heat dissipation muscle 4 are the radial circular arc such as section in the anticlockwise projection of side in the axial, thereby realize easily casting big heat dissipation muscle 3 and little heat dissipation muscle 4 and the addendum boss 6 of locating on big heat dissipation muscle 3 and the little heat dissipation muscle 4 on the pressure disk body 1.
The two ends of the ventilation groove 5 are narrow and in the middle. The circumferential direction of pressure disk body 1 is width direction, and the width ratio of the outer section, middle section and the inner section of ventilation groove 5 is 3: 5: 4, make pressure disk body 1 can not cause the hindrance to the circulation of wind when ventilation slot 5 is through ventilation cooling.
According to the clutch pressure plate with the heat dissipation structure, the ventilation grooves 5 with the same size are formed on the pressure plate body 1 at intervals between the large heat dissipation ribs 3 and the small heat dissipation ribs 4, the ventilation grooves 5 are molded while the pressure plate body 1 is cast, secondary or repeated processing is not needed, and the production efficiency is high;
because the clockwise side of little heat dissipation muscle 4 is the same with the clockwise side of big heat dissipation muscle 3 in the axial projection shape and size in the axial, big heat dissipation muscle 3 and little heat dissipation muscle 4 set up and form ventilation groove 5 with the axial, the width of ventilation groove 5 forms the setting for the narrow wide proportion in the middle of the both ends, reduce the resistance to air convection production, be favorable to the heat dissipation of air convection, big heat dissipation muscle 3 and little heat dissipation muscle 4 set up and form ventilation groove 5 with the axial has the vortex effect, increase the speed that the air flowed through from the pressure disk surface, the heat exchange accelerates, make it have outstanding heat-sinking capability under the condition that the surface area does not increase by a wide margin, the contradiction of heat dissipation and intensity has been solved.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (6)
1. The utility model provides a heat radiation structure clutch pressure plate, includes pressure plate body (1), its characterized in that: a plurality of lug bosses (2) are arranged on the outer wall of the pressure plate body (1) at equal intervals in the circumferential direction, a plurality of large heat dissipation ribs (3) and small heat dissipation ribs (4) are uniformly distributed on the pressure plate body (1) in the circumferential direction, and ventilation grooves (5) which are communicated with the inner ring of the pressure plate body (1) and have the same size are formed between the large heat dissipation ribs (3) and the small heat dissipation ribs (4) at intervals;
the large heat dissipation ribs (3) and the small heat dissipation ribs (4) are provided with tooth crest bosses (6) with consistent cross sections in the same distribution circle.
2. The clutch pressure plate with heat dissipation structure as recited in claim, wherein: the bearing surface of the pressure plate body (1) is a conical surface through the arrangement of the large heat dissipation ribs (3) and the small heat dissipation ribs (4).
3. The clutch pressure plate with heat dissipation structure as recited in claim, wherein: big heat dissipation muscle (3) and little heat dissipation muscle (4) all are the wide inboard narrow and radial direction extension in the outside and locate on pressure disk body (1).
4. The clutch pressure plate with heat dissipation structure as recited in claim, wherein: tooth top boss (6) on little heat dissipation muscle (4) include inboard inclined plane (7) and outside inclined plane (8), the top of inboard inclined plane (7) with the top of outside inclined plane (8) meets and is the toper, tooth top boss (6) inboard is the annular and is equipped with cambered surface (9) of being connected with the bottom of inboard inclined plane (7), tooth top boss (6) outside annular is equipped with plane (10) that are connected with outside inclined plane (8) bottom.
5. The clutch pressure plate with heat dissipation structure as recited in claim, wherein: the tooth top boss (6) on the large heat dissipation rib (3) comprises a second outer side inclined plane (11) and a second inner side inclined plane (12), the top end of the second outer side inclined plane (11) is connected with the top of the second inner side inclined plane (12) to form a cone, the bottom end of the second inner side inclined plane (12) is connected with a second plane (13), the second outer side inclined plane (11) is connected with a third plane (14), the inner edge end of the second plane (13) is connected with a second inclined plane (15), the inner edge of the second inclined plane (15) and the inner edge of the cambered surface (9) are on the same horizontal plane, the plane (10) and the third plane (14) are equal in height, and a limit pin hole (16) with a limit pin is inserted into the second plane (13) arranged on one group of the large heat dissipation ribs (3).
6. The clutch pressure plate with heat dissipation structure as recited in claim, wherein: the pressure disk body (1) circumference direction is width direction, the both ends of ventilation groove (5) narrow with in the middle part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111279809.9A CN113883182A (en) | 2021-11-01 | 2021-11-01 | Clutch pressure plate with heat dissipation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111279809.9A CN113883182A (en) | 2021-11-01 | 2021-11-01 | Clutch pressure plate with heat dissipation structure |
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| Publication Number | Publication Date |
|---|---|
| CN113883182A true CN113883182A (en) | 2022-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111279809.9A Pending CN113883182A (en) | 2021-11-01 | 2021-11-01 | Clutch pressure plate with heat dissipation structure |
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| CN (1) | CN113883182A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114738403A (en) * | 2022-04-08 | 2022-07-12 | 中国铁道科学研究院集团有限公司 | Brake disc |
-
2021
- 2021-11-01 CN CN202111279809.9A patent/CN113883182A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114738403A (en) * | 2022-04-08 | 2022-07-12 | 中国铁道科学研究院集团有限公司 | Brake disc |
| CN114738403B (en) * | 2022-04-08 | 2024-04-26 | 中国铁道科学研究院集团有限公司 | Brake disc |
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