CN115217905A - Dual-mass flywheel and vehicle - Google Patents
Dual-mass flywheel and vehicle Download PDFInfo
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- CN115217905A CN115217905A CN202111386953.2A CN202111386953A CN115217905A CN 115217905 A CN115217905 A CN 115217905A CN 202111386953 A CN202111386953 A CN 202111386953A CN 115217905 A CN115217905 A CN 115217905A
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- 239000004696 Poly ether ether ketone Substances 0.000 claims abstract description 17
- 229920002530 polyetherether ketone Polymers 0.000 claims abstract description 17
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 15
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 15
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Images
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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/30—Flywheels
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/30—Flywheels
- F16F15/305—Flywheels made of plastics, e.g. fibre reinforced plastics [FRP], i.e. characterised by their special construction from such materials
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
In order to solve the problems of large friction damping and easy abrasion and breakage of a spring in the conventional dual-mass flywheel, the invention provides the dual-mass flywheel which comprises a main flywheel component, a secondary flywheel component, a self-lubricating spacer and the spring, wherein a cavity is formed between the main flywheel component and the secondary flywheel component, the self-lubricating spacer and the spring are positioned in the cavity, the self-lubricating spacer comprises main body resin and a fiber reinforced material arranged in the main body resin, and the main body resin comprises polyether ether ketone and polytetrafluoroethylene. Meanwhile, the invention also discloses a vehicle comprising the dual-mass flywheel. The dual-mass flywheel provided by the invention has good self-lubricating property, greatly reduces friction loss, improves torque transmission efficiency, does not need to add lubricating grease, reduces the cost, reduces the requirement of the dual-mass flywheel on air tightness, and improves the capability of the dual-mass flywheel to cope with the water immersion working condition.
Description
Technical Field
The invention belongs to the technical field of vehicles, and particularly relates to a dual-mass flywheel and a vehicle.
Background
With the increasing tightening of oil consumption regulations and emission regulations, hybrid power assemblies become an important technical route. The dual-mass flywheel is used as a part capable of solving the problem of vibration Noise (NVH) of a power assembly and improving the driving comfort of a vehicle, and is also increasingly applied to the power assembly of a hybrid vehicle type so as to improve the NVH level of the whole vehicle.
The dual mass flywheel divides a conventional flywheel into two parts, one part is reserved on the position of one side of an original engine and plays the role of the original flywheel for starting and transmitting the rotating torque of the engine, the other part is called a main flywheel, the other part is placed on one side of a transmission system and is used for improving the rotating inertia of the transmission, and the other part is called a secondary flywheel. An annular chamber is arranged between the two flywheels, a spring damper is arranged in the chamber, and the two flywheels are connected into a whole by the spring damper.
Because the cavity is generally of a casting structure, the surface of the cavity is difficult to smooth, and in order to ensure better tensile strength, elastic limit and higher fatigue strength, the spring shock absorber is generally made of 75SC medium carbon steel series, the outer side of the spring shock absorber and the inner wall of the outer side of the cavity can generate friction in the compression and extension processes, the friction between the spring and the cavity is used as a part of the damping of the dual-mass flywheel, the damping is more adverse to vibration reduction when the damping is larger in an acceleration working condition, meanwhile, the wear effect can be generated on the spring, the service life of the dual-mass flywheel is influenced, lubricating grease is generally added into the cavity for reducing the damping and avoiding the wear of the inner wall of the cavity to the spring shock absorber, meanwhile, the air tightness of the cavity needs to be kept, and the lubricating grease is lost after water is soaked, so that the dry friction between the dual-mass flywheel and the cavity is easily caused, and the spring is easy to break and lose efficacy. Therefore, the requirement on the laser welding air tightness of the main flywheel and the cover plate is very high, air tightness detection is required, and the production cost is high.
Disclosure of Invention
The invention provides a dual-mass flywheel and a vehicle, aiming at the problems of larger friction damping and easy abrasion and fracture of a spring in the conventional dual-mass flywheel.
The technical scheme adopted by the invention for solving the technical problems is as follows:
on one hand, the invention provides a dual-mass flywheel which comprises a flywheel assembly, a secondary flywheel assembly, a self-lubricating spacer and a spring, wherein the flywheel assembly and the secondary flywheel assembly can be mutually rotatably arranged, a cavity is formed between the flywheel assembly and the secondary flywheel assembly, the self-lubricating spacer and the spring are positioned in the cavity, the spring abuts against the flywheel assembly and the secondary flywheel assembly, the self-lubricating spacer is positioned between the spring and the inner wall of the cavity, the self-lubricating spacer comprises main body resin and fiber reinforced materials arranged in the main body resin, and the main body resin comprises polyether ether ketone and polytetrafluoroethylene.
Optionally, the main resin comprises the following components by weight:
50-90 parts of polyether-ether-ketone and 10-50 parts of polytetrafluoroethylene.
Optionally, the addition amount of the fiber reinforced material is 1% to 50% based on 100% of the total mass of the self-lubricating spacer.
Optionally, the fibrous reinforcement material comprises one or more of carbon fibers, nylon fibers and glass fibers.
Optionally, the self-lubricating spacer is of an arc-shaped sheet structure, the spring is an arc-shaped spring, and the spring is located on the inner side of the self-lubricating spacer.
Optionally, the flywheel subassembly is including flywheel and apron, secondary flywheel subassembly includes secondary flywheel, the apron is the loop configuration, the apron is located flywheel with between the secondary flywheel, the outer lane of apron with flywheel's outer lane is connected, the cavity form in the apron with between the flywheel, the cavity is the ring-type, the self-lubricating spacer with the quantity of spring is a plurality of, and is a plurality of the self-lubricating spacer is in the interval sets up on the outside inner wall of cavity, and is a plurality of the spring sets up in a plurality of on the self-lubricating spacer one-to-one, the spring is used for the transmission flywheel with moment of torsion between the secondary flywheel.
Optionally, the secondary flywheel assembly further includes a driving disc, the driving disc is located in the inner ring of the cavity, the secondary flywheel is of an annular structure, the inner ring of the secondary flywheel protrudes towards the main flywheel and is connected with the driving disc, the spring is respectively abutted to the driving disc and the main flywheel, a plurality of first positioning structures are arranged in the cavity, a plurality of second positioning structures are arranged on the outer edge of the driving disc, the first positioning structures are abutted to one end portion of the spring, and the second positioning structures are abutted to the other end portion of the spring.
Optionally, the secondary flywheel assembly further includes a disc spring and a rear end damping ring, an inner ring of the secondary flywheel extends to the cover plate and between the main flywheel, the disc spring is located between the secondary flywheel and the driving disc, the inner ring of the disc spring is connected with the inner ring of the secondary flywheel, and an outer ring of the disc spring is abutted to the inner ring of the cover plate through the rear end damping ring.
Optionally, the flywheel assembly still including the crankshaft bolt backing plate, secondary flywheel assembly still includes limited round friction pulley and front end damping ring, the outer lane of limited round friction pulley with the inner circle of secondary flywheel is connected, the inner circle of limited round friction pulley is used for connecting the derailleur, crankshaft bolt backing plate connect in go up towards on the flywheel the one side of secondary flywheel, front end damping ring is located limited round friction pulley with between the crankshaft bolt backing plate.
Optionally, the dual-mass flywheel further includes a starting gear ring, and the starting gear ring is sleeved on the periphery of the main flywheel.
In another aspect, the invention provides a vehicle comprising a dual mass flywheel as described above.
According to the dual-mass flywheel provided by the invention, the self-lubricating spacer is arranged in the cavity to isolate the spring from the inner wall of the cavity, so that the spring is prevented from being in direct contact friction with the inner wall of the cavity when being compressed and extended, the self-lubricating spacer adopts polyether-ether-ketone and polytetrafluoroethylene as main body resins, and a fiber reinforced material is added, so that the self-lubricating spacer has excellent low friction performance and abrasion resistance while meeting enough structural strength, and particularly, the self-lubricating spacer has good self-lubricating property, the friction coefficients between the self-lubricating spacer and the spring are all about 0.04, the friction loss is greatly reduced, the torque transmission efficiency is improved, lubricating grease is not required to be added into the cavity, the requirement of the dual-mass flywheel on air tightness is reduced while the cost is reduced, the capacity of the dual-mass flywheel for coping with the water immersion working condition is improved, the dynamic damping of the dual-mass flywheel is reduced, the vibration isolation performance of the dual-mass flywheel is more excellent, and the NVH performance is improved.
Drawings
FIG. 1 is a perspective cross-sectional view of a dual mass flywheel provided by the present invention;
FIG. 2 is a side sectional view of a dual mass flywheel provided by the present invention;
FIG. 3 is a side view of a dual mass flywheel provided by the present invention;
FIG. 4 is a front view of a dual mass flywheel provided by the present invention.
The reference numbers in the drawings of the specification are as follows:
1. a primary flywheel assembly; 11. a main flywheel; 111. a first positioning structure; 12. a cover plate; 13. a crankshaft bolt washer; 2. a secondary flywheel assembly; 21. a secondary flywheel; 22. a rear end damping ring; 23. a disc spring; 24. a drive disc; 241. a second positioning structure; 25. a front end damping ring; 26. a torque-limiting friction wheel; 3. a spring; 4. a self-lubricating spacer; 5. a chamber; 6. the ring gear is started.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms upper, lower, front, rear, left, right, top, bottom, inner, outer, and the like indicate orientations or positional relationships based on those shown in the drawings only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
Referring to fig. 1 to 4, an embodiment of the present invention provides a dual mass flywheel, including a flywheel assembly 1, a secondary flywheel assembly 2, a self-lubricating spacer 4 and a spring 3, where the flywheel assembly 1 and the secondary flywheel assembly 2 are rotatably disposed with each other, a chamber 5 is formed between the flywheel assembly 1 and the secondary flywheel assembly 2, the self-lubricating spacer 4 and the spring 3 are located in the chamber 5, the spring 3 abuts against the flywheel assembly 1 and the secondary flywheel assembly 2, the self-lubricating spacer 4 is located between the spring 3 and an inner wall of the chamber 5, the self-lubricating spacer 4 includes a main body resin and a fiber reinforcement material disposed in the main body resin, and the main body resin includes polyetheretherketone and polytetrafluoroethylene.
The dual mass flywheel is in be provided with self-lubricating spacer 4 in order to keep apart in the cavity 5 spring 3 with the inner wall of cavity 5 avoids spring 3 when compression and extension and the inner wall direct contact friction of cavity 5, self-lubricating spacer 4 adopts polyetheretherketone and polytetrafluoroethylene as main part resin, adds the fiber reinforcement, when satisfying sufficient structural strength, has excellent low friction performance and wear resistance, especially, this self-lubricating spacer 4 has good self-lubricity, the coefficient of friction between self-lubricating spacer 4 and the spring 3 is about 0.04, reduce friction loss by a wide margin, improve torque transmission efficiency, need not add lubricated grease in cavity 5, also reduced the requirement of dual mass flywheel to the gas tightness when reducing the cost, improve the ability of dual mass flywheel reply immersion operating mode, reduce the dynamic damping of dual mass flywheel, make dual mass flywheel vibration isolation performance more superior, promote NVH performance.
In some embodiments, the host resin comprises the following components by weight:
50-90 parts of polyether-ether-ketone and 10-50 parts of polytetrafluoroethylene.
The main body resin is mainly made of polyether-ether-ketone, polytetrafluoroethylene is added as a blending material, specifically, the polyether-ether-ketone powder material and the polytetrafluoroethylene powder material are blended and then melt-extruded to form the polyether-ether-ketone/polytetrafluoroethylene composite material, when the polyether-ether-ketone/polytetrafluoroethylene composite material is in the content ratio range, the wear rate and the friction coefficient are low, the polyether-ether-ketone particles are mainly blocked by the polytetrafluoroethylene during forming and are trapped in a network fiber structure formed by the polytetrafluoroethylene, the interlocking structure inhibits the raw materials from falling off during friction, and the larger polyether-ether-ketone particles also play a role in preventing crack propagation. When the content of the polyether-ether-ketone is too low, the structure cannot be formed; when the content of the polyether-ether-ketone is too high, the surface lubrication effect of the self-lubricating spacer 4 is insufficient, and the abrasive dust is easy to fall off.
In some embodiments, the fibrous reinforcing material is added in an amount of 1% to 50% based on 100% by mass of the self-lubricating separator 4.
The fiber reinforced material is added into the self-lubricating spacer 4, so that the requirement on the mechanical strength of the self-lubricating spacer 4 can be improved, specifically, the tensile strength of the self-lubricating spacer 4 is more than or equal to 240Mpa, the compression strength is more than or equal to 299Mpa, the vitrification transfer temperature is more than or equal to 150 ℃, the melting point is more than or equal to 340 ℃, the bending strength is more than or equal to 350Mpa, the bending modulus is more than or equal to 18800Mpa, the water absorption rate is less than or equal to 1, and the service life under a long-term friction working condition can be ensured.
In some embodiments, the fiber reinforcement material comprises one or more of carbon fibers, nylon fibers, and glass fibers.
As shown in fig. 2, in the present embodiment, the self-lubricating spacer 4 is an arc-shaped sheet structure, the spring 3 is an arc-shaped spring, and the spring 3 is located inside the self-lubricating spacer 4.
The self-lubricating spacer 4 is arranged to be of an arc-shaped sheet structure, so that the self-lubricating spacer can adapt to the arrangement of the arc-shaped structure of the inner wall of the cavity 5, and the space occupation in the cavity 5 is reduced; on the other hand, the spring 3 is also adapted to the shape of the spring 3, and the interference in the deformation process of the spring 3 is reduced.
As shown in fig. 1 and fig. 2, in this embodiment, the flywheel assembly 1 includes a primary flywheel 11 and a cover plate 12, the secondary flywheel assembly 2 includes a secondary flywheel 21, the primary flywheel 11 is used for torque input of an engine, the secondary flywheel 21 is used for converted torque output, the cover plate 12 is in an annular structure, the cover plate 12 is located between the primary flywheel 11 and the secondary flywheel 21, an outer ring of the cover plate 12 is connected to an outer ring of the primary flywheel 11, the chamber 5 is formed between the cover plate 12 and the primary flywheel 11, the chamber 5 is in an annular shape, a first annular protrusion is formed on the cover plate 12 in a direction away from the primary flywheel 11, a second annular protrusion is formed on the primary flywheel 11 in a direction away from the cover plate 12, and the first annular protrusion and the second annular protrusion surround to form the chamber 5, self-lubricating spacer 4 with the quantity of spring 3 is a plurality of, and is a plurality of self-lubricating spacer 4 is in interval setting on the outside inner wall of cavity 5, and is a plurality of spring 3 sets up in a plurality of one-to-one on the self-lubricating spacer 4, spring 3 is used for the transmission main flywheel 11 with torque between the secondary flywheel 21, will self-lubricating spacer 4 set up in mainly because spring 3 has the pressure of radially expanding outward towards it when compression and extension on the outside inner wall of cavity 5, and then spring 3 with cavity 5's contact position mainly lies in on the outside inner wall of cavity 5, and cavity 5's inner circle is owing to need supply the rotation that driving-disc 24's outer lane stretched into, consequently cavity 5's inner circle needs be the fretwork setting.
Specifically, in this embodiment, the number of the springs 3 is 2, and correspondingly, the number of the self-lubricating spacers 4 is also 2.
In other embodiments, said springs 3 may be single or multiple, a single self-lubricating spacer 4 may be provided on the outside of a single said spring 3, or a single self-lubricating spacer 4 may be provided on the outside of a plurality of said springs 3.
In different embodiments, the spring 3 may directly abut against the secondary flywheel 21, or may form a torque transmission with the secondary flywheel 21 through other components, such as a driving disc 24.
As shown in fig. 1 and fig. 2, in this embodiment, the secondary flywheel assembly 2 further includes a driving disc 24, the driving disc 24 is located in an inner ring of the chamber 5, the secondary flywheel 21 is an annular structure, the inner ring of the secondary flywheel 21 protrudes toward the main flywheel 11 and is connected to the driving disc 24, the springs 3 respectively abut against the driving disc 24 and the main flywheel 11, a plurality of first positioning structures 111 are disposed in the chamber 5, a plurality of second positioning structures 241 are disposed on an outer edge of the driving disc 24, the first positioning structures 111 abut against one end portion of the springs 3, and the second positioning structures 241 abut against the other end portion of the springs 3.
As shown in fig. 1, in this embodiment, the number of the first positioning structures 111 is 2, the first positioning structures 111 are obtained by recessing the main flywheel 11 and the cover plate 12 at corresponding positions toward the chamber 5, 2 of the first positioning structures 111 are located in the same radial direction to partition the chamber 5 into 2 semi-annular cavities, 2 of the springs 3 and 2 of the self-lubricating spacers 4 are located in the 2 semi-annular cavities respectively, the second positioning structure 241 is a protruding structure formed on the outer ring of the driving disc 24, the number of the second positioning structures 241 is 2, and 2 of the second positioning structures 241 are located at the positions of the 2 of the first positioning structures 111 respectively, when the torque between the main flywheel 11 and the driving disc 24 changes, the second positioning structures 241 and the first positioning structures 111 generate relative rotational displacement, so as to compress or extend the springs 3, so as to form a buffering effect, and ensure smooth output of the torque.
As shown in fig. 1 and fig. 2, in this embodiment, the secondary flywheel assembly 2 further includes a disc spring 23 and a rear end damping ring 22, the disc spring 23 is a special spring that is tapered in an axial direction and bears a load, an inner ring of the secondary flywheel 21 extends to a position between the cover plate 12 and the main flywheel 11, the disc spring 23 is located between the secondary flywheel 21 and the driving plate 24, an inner ring of the disc spring 23 is connected to an inner ring of the secondary flywheel 21, an outer ring of the disc spring 23 abuts against the inner ring of the cover plate 12 through the rear end damping ring 22, and the disc spring 23 forms a limiting effect between the secondary flywheel 21 and the cover plate 12, so as to prevent the secondary flywheel 21 from being separated from the cover plate 12, and meanwhile, the disc spring supports the rear end damping ring 22 to abut against the cover plate 12.
In this embodiment, the flywheel assembly 1 further includes a crankshaft bolt pad 13, the secondary flywheel assembly 2 further includes a torque-limiting friction wheel 26 and a front end damping ring 25, an outer ring of the torque-limiting friction wheel 26 is connected with an inner ring of the secondary flywheel 21, the inner ring of the torque-limiting friction wheel 26 is used for connecting a transmission to achieve torque output, specifically, the inner ring of the torque-limiting friction wheel 26 is provided with a spline, the crankshaft bolt pad 13 is connected to the primary flywheel 11 and faces one surface of the secondary flywheel 21, the crankshaft bolt pad 13 is used for fixing a crankshaft of the engine, the crankshaft of the engine is used for torque input, and the front end damping ring 25 is located between the torque-limiting friction wheel 26 and the crankshaft bolt pad 13.
The inner ring of the secondary flywheel 21, the inner ring of the disc spring 23, the inner ring of the drive disk 24, and the outer ring of the torque-limiting friction wheel 26 are fixed integrally by rivets.
Because the flywheel assembly 1 and the secondary flywheel assembly 2 can generate relative rotation when the engine works, the front end damping ring 25 and the rear end damping ring 22 have friction damping characteristics, and are matched with the damping characteristics of the spring 3 to damp torque fluctuation of the engine-transmission.
As shown in fig. 3 and 4, in the present embodiment, the dual mass flywheel further includes a starting ring gear 6, and the starting ring gear 6 is sleeved on the outer periphery of the main flywheel 11.
The starting ring gear 6 is used for starting and driving the engine by a starter, and in other embodiments, when the starter is not provided as a starting mode, the starting ring gear 6 may not be provided.
Another embodiment of the present invention provides a vehicle including a dual mass flywheel as described above.
Due to the adoption of the dual-mass flywheel, the vehicle has stable torque output performance and good NVH performance, and meanwhile, due to the fact that lubricating oil does not need to be added, the requirement on the air tightness of the dual-mass flywheel is also lowered, and further the production and test cost is reduced.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (11)
1. The utility model provides a dual mass flywheel, its characterized in that includes flywheel subassembly, secondary flywheel subassembly, self-lubricating spacer and spring, the flywheel subassembly with but secondary flywheel subassembly rotation each other sets up, the flywheel subassembly with be formed with the cavity between the secondary flywheel subassembly, the self-lubricating spacer with the spring is located in the cavity, the spring butt flywheel subassembly with secondary flywheel subassembly, the self-lubricating spacer is located the spring with between the inner wall of cavity, the self-lubricating spacer include the main part resin and set up in fibre reinforced material in the main part resin, the main part resin includes polyether ether ketone and polytetrafluoroethylene.
2. A twin mass flywheel as defined in claim 1 in which the host resin comprises the following components by weight:
50-90 parts of polyether-ether-ketone and 10-50 parts of polytetrafluoroethylene.
3. A twin mass flywheel as defined in claim 1 in which the fibrous reinforcing material is added in an amount of 1 to 50% based on 100% of the total mass of the self-lubricating spacer.
4. A twin mass flywheel as defined in claim 1 in which the fibre reinforcement comprises one or more of carbon fibre, nylon fibre and glass fibre.
5. A twin mass flywheel as defined in claim 1 in which the self-lubricating spacer is of arcuate sheet construction and the springs are arcuate springs located inboard of the self-lubricating spacer.
6. A dual mass flywheel as defined in claim 5 wherein, said flywheel assembly comprises a flywheel and a cover plate, said flywheel assembly comprises a secondary flywheel, said cover plate is of an annular structure, said cover plate is located between said flywheel and said secondary flywheel, said cover plate is connected with said outer ring of said flywheel, said cavity is formed between said cover plate and said flywheel, said cavity is annular, said self-lubricating spacers and said springs are in a plurality, said self-lubricating spacers are spaced on the inner wall of the outer side of said cavity, said springs are correspondingly disposed on said self-lubricating spacers, said springs are used for transmitting the torque between said flywheel and said secondary flywheel.
7. The dual mass flywheel of claim 6, wherein the secondary flywheel assembly further comprises a drive plate, the drive plate is located in an inner ring of the chamber, the secondary flywheel is in an annular structure, the inner ring of the secondary flywheel protrudes towards the main flywheel and is connected with the drive plate, the spring is respectively abutted against the drive plate and the main flywheel, a plurality of first positioning structures are arranged in the chamber, a plurality of second positioning structures are arranged on the outer edge of the drive plate, the first positioning structures are abutted against one end of the spring, and the second positioning structures are abutted against the other end of the spring.
8. The dual mass flywheel of claim 7 wherein the secondary flywheel assembly further comprises a belleville spring and a rear damping ring, the inner race of the secondary flywheel extends between the cover plate and the main flywheel, the belleville spring is located between the secondary flywheel and the drive plate, the inner race of the belleville spring is connected to the inner race of the secondary flywheel, and the outer race of the belleville spring abuts against the inner race of the cover plate through the rear damping ring.
9. A dual mass flywheel as defined in claim 6 wherein said flywheel assembly further includes a crankshaft bolt pad, said secondary flywheel assembly further includes a torque limited friction wheel and a front end damping ring, an outer ring of said torque limited friction wheel is connected to an inner ring of said secondary flywheel, said inner ring of said torque limited friction wheel is used for connecting a transmission, said crankshaft bolt pad is connected to a surface of said primary flywheel facing said secondary flywheel, said front end damping ring is located between said torque limited friction wheel and said crankshaft bolt pad.
10. The dual mass flywheel of claim 6, further comprising a starter ring gear, wherein the starter ring gear is disposed around the main flywheel.
11. A vehicle comprising a dual mass flywheel according to any of claims 1 to 10.
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| CN202111386953.2A CN115217905A (en) | 2021-11-22 | 2021-11-22 | Dual-mass flywheel and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111386953.2A CN115217905A (en) | 2021-11-22 | 2021-11-22 | Dual-mass flywheel and vehicle |
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