CN218543052U

CN218543052U - Dual-mass flywheel with sealing mechanism

Info

Publication number: CN218543052U
Application number: CN202222917510.8U
Authority: CN
Inventors: 张艳洁
Original assignee: Great Wall Motor Co Ltd
Current assignee: Great Wall Motor Co Ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-02-28
Anticipated expiration: 2032-10-31

Abstract

The utility model discloses a dual mass flywheel with sealing mechanism, dual mass flywheel includes primary mass, secondary mass and sealing mechanism, primary mass includes main flywheel and apron, the apron is located one side of main flywheel, the apron with main flywheel connects, the apron with be provided with spring assembly in the cavity between the main flywheel, spring assembly is connected with the biography power board, sealing mechanism includes first sealing ring and second sealing ring, first sealing ring install in one side that the biography power board is close to the apron, second sealing ring joint is in the secondary mass position, the utility model discloses can solve compact power automobile among the prior art because dual mass flywheel axial arrangement space is limited, be not convenient for secondary mass arrange, be unfavorable for anti-seismic whole car performance and flywheel sealing performance's technical problem.

Description

Dual-mass flywheel with sealing mechanism

Technical Field

The utility model relates to a vehicle accessories technical field, concretely relates to dual mass flywheel with sealing mechanism.

Background

On the current market, for the travelling comfort that improves the vehicle, more and more motorcycle types adopt the dual mass flywheel, and the dual mass flywheel is about to original flywheel and falls into two parts of primary quality and secondary quality, and two parts pass through elastic element and connect, use behind the dual mass flywheel, can make the torsional vibration and the gearbox of bent axle keep apart, especially can filter the low-speed regional unbalance of area, promote whole car anti-seismic performance, promote the travelling comfort of vehicle.

The dual-mass flywheel is arranged in a space formed by the engine and the gearbox shell, the space is relatively narrow, and parts of the dual-mass flywheel are arranged on the secondary side, so that the axial occupied space of the secondary side is increased, the mass inertia of the secondary flywheel is not increased, the vibration damping effect of the flywheel is reduced, and the anti-seismic performance of the whole vehicle is not facilitated.

Also in the dual mass flywheel according to the prior art, it is sometimes observed that water enters into the arcuate spring channels. In the region of the deflector plate and the diaphragm spring, water may be pressed into the curved spring channel at the speed of rotation. Water is pressed into the gap between the hub ring and the primary mass cover at rotational speed between the diaphragm spring and the driven hub. From there, water enters the arcuate spring passage. When the vehicle wades for a long time or the wading depth is large, the dual-mass flywheel inevitably enters water. Meanwhile, dust can enter the shell from the holes to pollute the lubricating grease of the dual mass flywheel, so that the lubricating grease is invalid, and the internal elements of the dual mass flywheel are easy to generate abnormal wear and abnormal sound, so that the service life of the dual mass flywheel is shortened.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a dual mass flywheel with sealing mechanism to solve among the prior art because dual mass flywheel axial arrangement space is limited, the secondary mass of being not convenient for arranges, is unfavorable for promoting whole car anti-seismic performance and flywheel sealing performance's technical problem.

The embodiment of the utility model provides a dual mass flywheel with sealing mechanism, dual mass flywheel includes elementary quality and secondary quality and sealing mechanism, elementary quality includes main flywheel and apron, the apron is located one side of main flywheel, the apron with main flywheel connects, the apron with be provided with spring assembly in the cavity between the main flywheel, spring assembly is connected with the biography power board, sealing mechanism includes first sealing ring and second sealing ring, first sealing ring install in the biography power board is close to one side of apron, the second sealing ring joint is in secondary quality position.

Preferably, the periphery of the first sealing ring is provided with a concave groove, and the inner diameter end of the cover plate is hermetically arranged in the concave groove.

Preferably, the secondary mass comprises a force transfer plate, a distance disc and a hub which are sequentially connected from inside to outside along the axial direction of the main flywheel, and an installation space for installing the first sealing ring is arranged between the distance disc and the hub.

Preferably, the sealing mechanism further comprises a second sealing ring, the outer periphery of the second sealing ring is provided with a clamping lug connected with the secondary mass in a sealing manner, and the inner periphery of the second sealing ring is connected with the mounting gasket in a sealing manner.

Preferably, the inner peripheral edge of the second sealing ring is provided with a sealing connection portion, and the sealing connection portion comprises a plurality of sealing surfaces to be in sealing connection with different parts of the mounting gasket.

Preferably, the inner peripheral edge of the second seal ring has a first thickness, and the other part of the inner periphery of the second seal ring has a second thickness, and the first thickness is smaller than the second thickness to form the stepped sealing connection part.

Preferably, the sealing connection portion includes a first sealing surface and a second sealing surface connected to each other, the first sealing surface is connected to the end portion of the mounting gasket in a sealing manner, and the second sealing surface is connected to the plate surface of the mounting gasket in a sealing manner.

Preferably, the other part of the inner periphery of the second sealing ring is also provided with a process hole.

Preferably, the clamping lugs are multiple, and the clamping lugs are arranged around the periphery of the second sealing ring at intervals.

Preferably, the dowel plate, the distance disc and the hub are provided with mounting holes for connecting the dowel plate, the distance disc and the hub, and the sealing mechanism further comprises a blocking cap for sealing the mounting holes.

The embodiment of the utility model provides a dual mass flywheel with sealing mechanism, through set up the concave groove in first sealing ring periphery, install the internal diameter end of apron in the concave groove and chucking, the concave groove cooperates with the internal diameter end of apron and constitutes multiaspect sealed, has improved the leakproofness; meanwhile, the inner diameter end of the cover plate is arranged on the periphery of the first sealing ring, so that the axial distance between the cover plate and the center of the main flywheel is reduced, the area easy to enter water is raised, the wading depth of the flywheel is improved, the phenomenon that the lubricating grease of the dual-mass flywheel is polluted by the entering water and dust of the dual-mass flywheel when a vehicle wades for a long time or the wading depth is large is effectively avoided, the lubricating grease is invalid, the internal elements of the dual-mass flywheel are abnormally worn and abnormally sounded, the service life of the dual-mass flywheel is greatly prolonged, the NVH performance of the vehicle is improved, and the comfort in the running of the vehicle is improved; meanwhile, the axial spatial arrangement of the dual-mass flywheel can be shortened, and the compact arrangement of a power assembly and the whole vehicle is facilitated.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In the drawings, which are not necessarily drawn to scale, like reference numerals may describe similar components in different views. Like reference numerals having letter suffixes or different letter suffixes may represent different instances of similar components. The drawings illustrate various embodiments generally by way of example and not by way of limitation, and together with the description and claims serve to explain the disclosed embodiments. The same reference numbers will be used throughout the drawings to refer to the same or like parts, where appropriate. Such embodiments are illustrative, and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method. The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

fig. 1 is a schematic structural view of a dual mass flywheel provided by the present invention;

FIG. 2 isbase:Sub>A schematic sectional view A-A (includingbase:Sub>A seal arrangement) ofbase:Sub>A dual mass flywheel as shown in FIG. 1;

fig. 3 is a partially enlarged schematic view of a dual mass flywheel provided by the present invention at a position B;

fig. 4 is a partially enlarged schematic view of a position C in a dual mass flywheel provided by the present invention;

fig. 5 is a schematic structural view of the first sealing ring provided by the present invention;

fig. 6 is a schematic structural view of a second sealing ring provided by the present invention;

wherein the figures include the following reference numerals:

1. a main flywheel; 2. a cover plate; 3. a ring gear; 4. a spring set; 5. a first seal ring; 51. a concave groove; 6. a force transmission plate; 7. a distance disk; 8. a hub; 9. a second seal ring; 91. clamping a lug; 92. sealing the connection part; 921. a first sealing surface; 922. a second sealing surface; 93. a fabrication hole; 11. installing a gasket; 12. and (5) plugging the cap.

Detailed Description

Various aspects and features of the present invention are described herein with reference to the drawings.

It will be understood that various modifications may be made to the embodiments of the present application. Accordingly, the foregoing description should not be construed as limiting, but merely as exemplifications of embodiments. Other modifications will occur to those skilled in the art which are within the scope and spirit of this invention.

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and, together with a general description of the invention given above, and the detailed description of the embodiments given below, serve to explain the principles of the invention.

These and other characteristics of the invention will become apparent from the following description of a preferred form of embodiment, given as a non-limiting example, with reference to the attached drawings.

It is also understood that, although the present invention has been described with reference to some specific examples, a person of skill in the art shall certainly be able to achieve many other equivalent forms of the invention, having the characteristics as set forth in the claims and hence all coming within the field of protection defined thereby.

The above and other aspects, features and advantages of the present invention will become more apparent in view of the following detailed description when taken in conjunction with the accompanying drawings.

Specific embodiments of the present invention are described hereinafter with reference to the accompanying drawings; however, it is to be understood that the disclosed embodiments are merely exemplary of the invention, which can be embodied in various forms. Well-known and/or repeated functions and constructions are not described in detail to avoid obscuring the invention in unnecessary or unnecessary detail. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present invention in virtually any appropriately detailed structure.

The description may use the phrases "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," which may each refer to one or more of the same or different embodiments in accordance with the present invention.

The invention will be further described with reference to the drawings and specific embodiments.

As shown in fig. 1 and fig. 2, an embodiment of the present invention provides a dual mass flywheel with a sealing mechanism, the dual mass flywheel includes a primary mass and a secondary mass, the primary mass includes a main flywheel 1 and a cover plate 2, the main flywheel 1 is fixedly connected to a crankshaft for starting and transmitting a rotational torque of an engine, the cover plate 2 is disposed on one side of the main flywheel 1, the cover plate 2 is connected to the main flywheel 1, the main flywheel 1 is provided with a gear ring 3, the gear ring 3 and the cover plate 2 are welded to the main flywheel 1, the gear ring 3 is matched with a starter to start the engine, the gear ring 3 is directly connected to the starter, the starter drives the dual mass flywheel to rotate, and accordingly the crankshaft of the engine is driven to rotate and start; the cover plate 2 and the main flywheel 1 are connected to form a spring cavity, a spring group 4 is installed in the spring cavity, the main flywheel 1 drives the spring group 4 in the working process, the spring group 4 transmits torque through compression deformation, the dual-mass flywheel is easy to wear, lubricating grease is filled in the spring cavity where the spring group 4 is located, the lubricating grease has high requirements on wear-resistant lubrication, the high-dropping-point lubricating grease has high viscosity and can overcome high-speed centrifugal force, the fatigue life of the spring group 4 is most critical when the dual-mass flywheel of a vehicle transmission system is used, and the lubricating grease for protecting the spring group 4 is added in the design of the dual-mass flywheel so as to improve the service life of the spring group 4; however, the wear-resistant lubricating grease can be emulsified and deteriorated after being corroded by water or dust, and the lubricating effect is lost; a dual mass flywheel with good sealing is required to improve the life span of the dual mass flywheel.

As shown in fig. 2, fig. 3 and fig. 5, the embodiment of the present invention provides a sealing mechanism including a first sealing ring 5, the periphery of the first sealing ring 5 is provided with a concave groove 51, the inner diameter end of the cover plate 2 is sealingly installed in the concave groove 51, so as to achieve the effect of sealing the cover plate 2.

The sealing mechanism provided by the embodiment of the utility model has the advantages that the concave groove 51 is arranged on the periphery of the first sealing ring 5, the inner diameter end of the cover plate 2 is arranged in the concave groove 51 and is clamped, the concave groove 51 and the inner diameter end of the cover plate 2 are matched to form multi-surface sealing, and the sealing performance is improved; meanwhile, the inner diameter end of the cover plate 2 is arranged on the periphery of the first sealing ring 5, so that the axial distance between the cover plate 2 and the center of the main flywheel 1 is reduced, an area easy to enter water is raised, the wading depth of the flywheel is improved, the phenomenon that the lubricating grease of the dual-mass flywheel is polluted by the water and dust of the dual-mass flywheel due to the fact that the lubricating grease is invalid and the internal elements of the dual-mass flywheel are abnormally worn and generate abnormal sound when a vehicle wades for a long time or the wading depth is large is effectively avoided, the service life of the dual-mass flywheel is greatly prolonged, the anti-seismic performance of the vehicle is improved, and the comfort of the vehicle in running is improved; meanwhile, the axial spatial arrangement of the dual-mass flywheel can be shortened, and the compact arrangement of a power assembly and the whole vehicle is facilitated.

During double mass flywheel hypervelocity during operation, the spring cavity receives an outside centrifugal force under the medium pressure effect, pressure is higher in the system receives outside thrust more greatly, the specific pressure of sealed face just is lower more, and under the high-speed environment of high temperature, it is very high to sealed effect requirement, the fragile sealed face, in the embodiment, through multiaspect seal structure, the impaired risk of sealed face has been reduced, the sealed result of use of double mass flywheel has been improved, because its simple structure, reliable operation, can guarantee the stability of double mass flywheel during operation under the super high pressure.

The shape of the concave groove 51 is set according to the shape of the inner diameter end of the cover plate, for example, the concave groove 51 is preferably a U-shaped groove in the present embodiment, and can be hermetically matched with the end surface of the inner diameter end of the cover plate and the side surface close to the end surface to realize three-side sealing. In other embodiments, the concave groove 51 may also be an arc-shaped groove or a V-shaped groove, which is not limited in the present invention.

Further, secondary quality includes the edge dowel steel 6, distance dish 7 and wheel hub 8 that main flywheel 1's axial direction connects gradually from inside to outside, dowel steel 6 and spring assembly 4 contact transmission moment of torsion, distance dish 7 is used for increasing the flywheel inner space, dowel steel 6 links firmly together through mounting hole 11 with wheel hub 8, distance dish 7, and it is sealed that the follow-up stifled cap 12 shutoff with mounting hole 9 is dead, further promotes the leakproofness, be equipped with between distance dish 7 and the wheel hub 8 and be used for the installation space of first sealing ring 5.

In practice, as shown in fig. 2 and 3, an L-shaped groove is formed from one end of the disk 7 close to the hub 8, and cooperates with the disk surface of the hub 8 to form an annular mounting space; an annular groove for installing the first sealing ring 5 can be formed in the annular periphery of the distance disc 7 to form an installation space, the structure shortens the overall axial space arrangement of the flywheel, improves the wading depth of the flywheel, effectively avoids water or dust entering the flywheel and improves the sealing performance of the flywheel; meanwhile, the technical problem that secondary mass arrangement is inconvenient for a compact power vehicle due to the fact that the axial arrangement space of the dual-mass flywheel is limited in the prior art is solved, and the anti-seismic performance of the whole vehicle can be improved. Vehicle with a steering wheel

Further, as shown in fig. 2, 4 and 6, the sealing mechanism further includes a second sealing ring 9, a clamping lug 91 connected with the secondary mass in a sealing manner is arranged on the outer periphery of the second sealing ring 9, and the inner periphery of the second sealing ring 9 is connected with the mounting gasket 10 in a sealing manner. The second sealing ring 9 is connected with the secondary mass in a sealing mode through the clamping lug 91 arranged on the outer periphery of the second sealing ring 9, the inner periphery of the second sealing ring 9 is connected with the mounting gasket 10 in a sealing mode, the second sealing ring 9 is reliably sealed, meanwhile, the second sealing ring 9 is matched with the secondary mass and the mounting gasket 10, basic retardation is provided, namely, a damping function can be achieved through friction, meanwhile, the design of parts can be reduced, the axial space arrangement of the dual-mass flywheel is shortened, for example, the axial arrangement space of an elastic element (such as a diaphragm spring) can be reduced, the axial arrangement space of the secondary mass can be increased in the limited overall arrangement space, and the compact arrangement of a power assembly and a whole vehicle is facilitated.

Further, the inner peripheral edge of the second sealing ring 9 is provided with a sealing connection portion 92, and the sealing connection portion 92 includes a plurality of sealing surfaces to be in sealing connection with different parts of the mounting gasket 10, so that the sealing performance of the second sealing ring 9 is improved by the cooperation of the plurality of sealing surfaces and the mounting gasket 10.

Further, as shown in fig. 6, the inner peripheral edge of the second seal ring 9 has a first thickness, and the other portion of the inner periphery of the second seal ring 9 has a second thickness, and the first thickness is smaller than the second thickness to form the seal connecting portion 92 in a stepped shape. The sealing connection with the mounting gasket 10 is facilitated by forming a sealing connection 92 at the inner peripheral edge of the second seal ring 9.

The sealing connection portion 92 comprises a first sealing surface 921 and a second sealing surface 922 which are connected with each other, the first sealing surface 921 is connected with the end portion of the mounting gasket 10 in a sealing mode, the second sealing surface 922 is connected with the plate surface of the mounting gasket 10 in a sealing mode, the first sealing surface 921 and the second sealing surface 922 are vertically distributed, when the sealing effect is achieved, basic retardation is provided by the aid of the matching relation between the first sealing surface 921 and the second sealing surface 922 and the mounting gasket 10, design of parts is reduced, and axial space arrangement of the dual-mass flywheel is shortened.

The other part of the inner periphery of the second sealing ring 9 is also provided with a fabrication hole 93 for connecting or sealing with other parts. The process hole 93 is preferably a blind hole, and the sealing effect of the second sealing ring 9 can be further improved by matching with other parts.

Furthermore, in some embodiments, the number of the clamping lugs 91 is multiple, and the plurality of clamping lugs 91 are arranged around the periphery of the second sealing ring 9 at intervals, so that the second sealing ring 9 is prevented from falling off, and the sealing performance of the second sealing ring is improved.

The embodiment of the utility model provides a still provide a dual mass flywheel including above-mentioned sealing mechanism. The double-mass flywheel is arranged on the vehicle, so that the phenomenon that the lubricating grease of the double-mass flywheel is polluted by water and dust of the double-mass flywheel due to the fact that the lubricating grease is invalid and internal elements of the double-mass flywheel are abnormally abraded and generate abnormal sound when the vehicle wades for a long time or the wading depth is large is avoided, and the service life of the double-mass flywheel is greatly prolonged; meanwhile, the NVH performance of the vehicle and the comfort of the vehicle in operation are greatly improved. After the vehicle uses dual mass flywheel, can make the torsional vibration of bent axle and gearbox keep apart, especially can filter the regional unbalance of low-speed, promote the NVH performance of vehicle, promote the travelling comfort of vehicle in service.

The above description is only a preferred embodiment of the invention and is intended to illustrate the technical principles applied. It will be appreciated by those skilled in the art that the scope of the disclosure herein is not limited to the particular combination of features described above, and that other embodiments can be made by any combination of features described above or their equivalents without departing from the spirit of the disclosure. For example, the above features and (but not limited to) technical features having similar functions disclosed in the present invention are mutually replaced to form the technical solution.

Further, while operations are depicted in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order. Under certain circumstances, multitasking and parallel processing may be advantageous. Likewise, although several specific implementation details are included in the above discussion, these should not be construed as limiting the scope of the invention. Certain features that are described in the context of separate embodiments can also be implemented in combination in a single embodiment. Conversely, various features that are described in the context of a single embodiment can also be implemented in multiple embodiments separately or in any suitable subcombination.

Although the subject matter has been described in language specific to structural features and/or methodological acts, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are disclosed as example forms of implementing the claims.

The above detailed description of the embodiments of the present invention is not limited to these specific embodiments, and those skilled in the art can make various modifications and modified embodiments based on the concept of the present invention, and these modifications and modified embodiments should fall within the scope of the present invention.

Claims

1. The utility model provides a dual mass flywheel with sealing mechanism, a serial communication port, dual mass flywheel includes primary mass, secondary mass and sealing mechanism, primary mass includes main flywheel (1) and apron (2), apron (2) are located one side of main flywheel (1), apron (2) with main flywheel (1) is connected, apron (2) with be provided with spring assembly (4) in the cavity between main flywheel (1), spring assembly (4) are connected with biography power board (6), sealing mechanism includes first sealing ring (5) and second sealing ring (9) _， The first sealing ring (5) is arranged on one side, close to the cover plate (2), of the force transmission plate (6), and the second sealing ring (9) is clamped at the secondary mass part.

2. A twin mass flywheel with sealing mechanism as defined in claim 1 wherein the outer periphery of the first sealing ring (5) is provided with a concave groove (51), and the inner diameter end of the cover plate (2) is sealingly mounted in the concave groove (51).

3. A twin mass flywheel with sealing mechanism according to claim 1 where the secondary mass comprises a force transfer plate (6), a distance disc (7) and a hub (8) connected in series from inside to outside in the axial direction of the primary flywheel, where between the distance disc (7) and the hub (8) is located a mounting space for mounting the first sealing ring (5).

4. A twin mass flywheel with sealing mechanism as claimed in claim 1 characterised in that the outer periphery of the second sealing ring (9) is provided with a snap lug (91) in sealing connection with the secondary mass and the inner periphery of the second sealing ring (9) is in sealing connection with a mounting washer (10).

5. A twin mass flywheel with a sealing mechanism as defined in claim 4 in which the inner peripheral edge of the second sealing ring (9) is provided with a sealing connection (92), the sealing connection (92) comprising a plurality of sealing faces to sealingly connect with different parts of the mounting pad (10).

6. A twin mass flywheel with sealing mechanism as defined in claim 5 in which the inner peripheral edge of the second sealing ring (9) has a first thickness and the other part of the inner periphery of the second sealing ring (9) has a second thickness, the first thickness being less than the second thickness to form the sealing connection (92) in a step shape.

7. A dual mass flywheel having a sealing mechanism according to claim 6 wherein the sealing connection (92) comprises a first sealing surface (921) and a second sealing surface (922) connected to each other, the first sealing surface (921) being in sealing connection with the end of the mounting pad (10), and the second sealing surface (922) being in sealing connection with the plate surface of the mounting pad (10).

8. A twin mass flywheel with sealing mechanism as defined in claim 7 in which the other part of the inner periphery of the second sealing ring (9) is also provided with a fabrication hole (93).

9. A twin mass flywheel with a seal mechanism as defined in claim 4 in which the lugs (91) are plural, the lugs (91) being spaced around the periphery of the second seal ring (9).

10. A twin mass flywheel with sealing mechanism as defined in claim 3 where the transfer plate (6), distance disc (7) and hub (8) are provided with mounting holes (11) to connect the three, the sealing mechanism further comprising a plug cap (12) to seal the mounting holes (11).