CN104500652B - For vehicle flywheel assembly and there is its engine and vehicle - Google Patents

Abstract

The invention discloses a flywheel assembly for a vehicle, an engine and a vehicle with the same. The flywheel assembly for a vehicle includes: a primary flywheel adapted to be fixed on the engine crankshaft of the vehicle; a secondary flywheel connected to the primary flywheel through an elastic element and adapted to The clutch is connected to the transmission of the vehicle; a switching device, the switching device is configured to selectively synchronize the primary flywheel and the secondary flywheel so that the primary flywheel and the secondary flywheel rotate synchronously. According to the flywheel assembly for a vehicle in the embodiment of the present invention, when the engine is started, the primary flywheel and the secondary flywheel are synchronized by the switching device, so as to avoid resonance between the primary flywheel and the secondary flywheel.

Description

Flywheel assembly for vehicle and engine and vehicle having same

technical field

The present invention relates to the technical field of vehicles, in particular to a flywheel assembly for a vehicle, an engine with the flywheel assembly and a vehicle with the engine or the flywheel assembly.

Background technique

In the related technology, during the ignition process of the engine, the engine speed gradually increases from zero to the idle speed (generally above 750 rpm), and the dual-mass flywheel including the primary flywheel and the secondary flywheel attenuates the engine speed through the elastic element between the two-stage flywheels. The torque fluctuates, and the resonance range of the dual-mass flywheel is lower than the engine idle speed in the vehicle state. When a vehicle using a dual-mass flywheel is ignited and started or the vehicle is short-started, the engine speed will pass through the dual-mass flywheel resonance point, causing dual-mass flywheel resonance, which affects the comfort of the vehicle's NVH and the service life of the dual-mass flywheel. There is an improvement space.

Contents of the invention

In view of this, the present invention aims to provide a flywheel assembly for a vehicle, thereby solving the problem of resonance between the primary flywheel and the secondary flywheel when the engine is started.

In order to achieve the above object, technical solution of the present invention is achieved in that way:

A flywheel assembly for a vehicle comprises: a primary flywheel adapted to be fixed on an engine crankshaft of the vehicle; a secondary flywheel connected to the primary flywheel through an elastic element and adapted to The clutch is connected to the transmission of the vehicle; a switching device, the switching device is configured to selectively synchronize the primary flywheel and the secondary flywheel so that the primary flywheel and the secondary flywheel rotate synchronously.

Further, the flywheel assembly for a vehicle further includes: a driving assembly connected to the switching device to drive the switching device to synchronize the primary flywheel and the secondary flywheel.

Further, the switching device includes: a primary flywheel hub, the primary flywheel hub is arranged on the primary flywheel; a secondary flywheel ring gear, the secondary flywheel ring gear is arranged on the secondary flywheel; A mating ring is constantly in mesh with the primary flywheel hub ring and is movable in an axial direction of the engine crankshaft to selectively intermesh with the secondary flywheel ring gear.

Further, the drive assembly includes: a drive motor; a push rod connected to the drive motor to move along the axial direction driven by the drive motor; a shift fork connected to the drive motor The slider is fixed on the shift fork and can slide relative to the engaging gear ring, and the shift fork pushes the engaging gear ring to move along the axial direction through the slider .

Further, a groove extending along the circumferential direction of the engaging gear ring is provided on the outer peripheral surface of the engaging gear ring, and the slider is slidably arranged in the groove.

Further, the drive motor is adapted to be the starter motor of the engine of the vehicle; the push rod is provided with a starter gear; the primary flywheel is provided with a primary flywheel starter ring gear suitable for meshing with the starter gear The primary flywheel starter ring gear is located on a side of the primary flywheel away from the secondary flywheel, and the primary flywheel gear hub is located on a side of the primary flywheel adjacent to the secondary flywheel.

The push rod can move along the axial direction between a first position and a second position. When the push rod is located at the first position, the starting gear meshes with the primary flywheel starting ring gear, and the The engaging ring gear is internally meshed with the secondary flywheel ring gear; when the push rod is at the second position, the starting gear is disengaged from the primary flywheel starting ring gear, and the engaging ring gear is in contact with the The secondary flywheel ring gear disengages.

Further, each tooth of the engaging gear ring is provided with a first guiding surface of the engaging gear ring and a second guiding surface of the engaging gear ring, and each tooth of the secondary flywheel ring gear is provided with a The first guide surface of the secondary flywheel ring gear matched with the first guide surface of the engaging gear ring and the second guide surface of the secondary flywheel ring gear matched with the second guide surface of the engaging gear ring.

Compared with the prior art, the flywheel assembly for vehicles according to the present invention has the following advantages: According to the flywheel assembly for vehicles in the embodiment of the present invention, the primary flywheel and the secondary flywheel are synchronized by setting the switching device when the engine starts , to avoid resonance between the primary flywheel and the secondary flywheel, improve the NVH performance of the vehicle and prolong the service life of the flywheel components.

Another object of the present invention is to propose an engine provided with the above-mentioned flywheel assembly for a vehicle.

The advantages of the engine and the above-mentioned flywheel assembly for vehicles are the same as those of the prior art, and will not be repeated here.

Another object of the present invention is to propose a vehicle, which is provided with the above-mentioned flywheel assembly for a vehicle or the above-mentioned engine.

The advantages of the vehicle and the above-mentioned flywheel assembly and engine for the vehicle are the same as those of the prior art, and will not be repeated here.

Description of drawings

The drawings constituting a part of the present invention are used to provide a further understanding of the present invention, and the schematic embodiments and descriptions of the present invention are used to explain the present invention, and do not constitute an improper limitation of the present invention. In the attached picture:

FIG. 1 is an exploded view of a flywheel assembly for a vehicle according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of an exploded structure of a flywheel assembly for a vehicle according to an embodiment of the present invention;

Fig. 3 is a three-dimensional structural schematic diagram of the flywheel assembly for a vehicle according to an embodiment of the present invention when the primary flywheel and the secondary flywheel are not synchronized;

Fig. 4 is a top view of the flywheel assembly for the vehicle shown in Fig. 3;

Fig. 5 is a three-dimensional structural schematic diagram of the flywheel assembly for a vehicle according to an embodiment of the present invention when the primary flywheel and the secondary flywheel are synchronized;

Fig. 6 is a top view of the flywheel assembly for the vehicle shown in Fig. 5;

Fig. 7 is a structural schematic diagram of a shift fork, a slider and an engaging gear ring of a flywheel assembly for a vehicle according to an embodiment of the present invention;

Fig. 8 is a schematic diagram of the structure of the engagement of the teeth of the ring gear and the teeth of the secondary flywheel ring gear;

FIG. 9 is a schematic diagram of the size and positional relationship of the flywheel assembly used in the vehicle according to the embodiment of the present invention.

Explanation of reference signs:

100-flywheel assembly for vehicle; 1-primary flywheel; 11-primary flywheel starter ring gear; 2-secondary flywheel; 3-switching device; 31-primary flywheel gear hub; 32-secondary flywheel ring gear; 321- 322-the second guide surface of the secondary flywheel ring gear; 33-joint gear ring; 331-groove; 332-joint gear ring first guide surface; 333-joint gear ring second Guide surface; 4-drive assembly; 42-push rod; 43-fork; 431-connection; 4311-installation hole; 432-first fork; 433-second fork; 44-slider; 441 -slider body; 442-connecting column; 45-starting gear; a-the width of the starting gear; b-the movable distance of the push rod; Gap between; d- the width of the primary flywheel starting ring gear; L1- the width of the secondary flywheel ring gear; L2- the gap between the secondary flywheel ring gear and the primary flywheel hub; L3- the width of the primary flywheel hub; L4 - the width of the teeth on the engagement ring; L5 - the distance between the side of the engagement ring adjacent to the secondary flywheel and the side of the primary flywheel hub adjacent to the secondary flywheel when the push rod is in the second position; L6 - the distance between the side of the engagement ring facing away from the secondary flywheel and the side of the primary flywheel hub facing away from the secondary flywheel when the pushrod is in the second position.

detailed description

It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

The flywheel assembly 100 for vehicles of the present invention will be described in detail below with reference to the accompanying drawings 1-9 and in conjunction with embodiments. The vehicle can be provided with an engine and a transmission, and a clutch is provided between the engine and the transmission, that is, the clutch is used to engage or separate the engine and the transmission, and when the engine and the transmission are engaged through the clutch, the power output by the engine can be transmitted to the transmission.

As shown in FIGS. 1-9 , a flywheel assembly 100 for a vehicle according to an embodiment of the present invention includes a primary flywheel 1 , a secondary flywheel 2 and a switching device 3 .

The primary flywheel 1 is adapted to be fixed on an engine crankshaft (not shown) of a vehicle so as to be suitable for starting the engine or transmitting the rotational torque of the engine through the engine crankshaft. The secondary flywheel 2 is connected with the primary flywheel 1 through an elastic element, and the secondary flywheel 2 is adapted to be connected with the transmission of the vehicle through a clutch so as to increase the moment of inertia of the transmission. It can be understood that the primary flywheel 1 and the secondary flywheel 2 are coaxially arranged and connected by an elastic element, and the elastic element includes a plurality of torsion springs.

The switching device 3 is arranged to selectively synchronize the primary flywheel 1 and the secondary flywheel 2 so that the primary flywheel 1 and the secondary flywheel 2 rotate synchronously. It can be understood that the primary flywheel 1 and the secondary flywheel 2 can be spaced apart along the axial direction of the engine crankshaft, and when the switching device 3 synchronizes the primary flywheel 1 and the secondary flywheel 2, the primary flywheel 1 and the secondary flywheel 2 are synchronized as a whole turn.

When the vehicle's engine is ignited and started or the engine is short-started (the engine is started with the key, but not fully started), the switching device 3 synchronizes the primary flywheel 1 and the secondary flywheel 2 so that the primary flywheel 1 and the secondary flywheel 2 rotate as a whole , that is, the flywheel assembly 100 at this time can be used as a single-mass flywheel, and the elastic element between the primary flywheel 1 and the secondary flywheel 2 does not work. Similarly, it avoids the resonance point where the engine speed passes through the flywheel assembly 100 , avoids resonance between the primary flywheel 1 and the secondary flywheel 2 , improves the NVH performance of the vehicle, and prolongs the service life of the flywheel assembly 100 .

In short, according to the flywheel assembly 100 for vehicles according to the embodiment of the present invention, by setting the switching device 3 to synchronize the primary flywheel 1 and the secondary flywheel 2 when the engine is started, the resonance between the primary flywheel 1 and the secondary flywheel 2 is avoided, The NVH performance of the whole vehicle is improved and the service life of the flywheel assembly 100 is prolonged.

A specific embodiment of a flywheel assembly 100 for a vehicle according to the present invention will be described in detail below with reference to FIGS. 1-9 . As shown in FIGS. 1-9 , a flywheel assembly 100 for a vehicle includes a primary flywheel 1 , a secondary flywheel 2 , a switching device 3 and a drive assembly 4 .

The primary flywheel 1 and the secondary flywheel 2 are arranged coaxially, and the driving assembly 4 is connected with the switching device 3 to drive the switching device 3 to act, so that the switching device 3 can selectively synchronize the primary flywheel 1 and the secondary flywheel 2 so that the primary flywheel 1 and The secondary flywheels 2 rotate synchronously.

Referring to FIGS. 1-6 , the switching device 3 may include a primary flywheel hub 31 , a secondary flywheel ring gear 32 and an engagement ring 33 . The primary flywheel gear hub 31 is arranged on the primary flywheel 1, and the primary flywheel gear hub 31 and the primary flywheel 1 can be rigidly connected, that is, the primary flywheel gear hub 31 and the primary flywheel 1 can rotate synchronously.

The secondary flywheel ring gear 32 is arranged on the secondary flywheel 2 , that is, the secondary flywheel ring gear 32 and the secondary flywheel 2 can rotate synchronously.

The engaging ring gear 33 is constantly in mesh with the primary flywheel hub 31 , and the engaging ring 33 is movable in the axial direction of the engine crankshaft to selectively internally mesh with the secondary flywheel ring gear 32 . The modulus, tooth shape, and radius of the base circle of the engaging gear ring 33 , the primary flywheel hub 31 and the secondary flywheel ring gear 32 are the same.

That is to say, the engagement ring 33 can move relative to the primary flywheel 1 along the axial direction of the engine crankshaft, and the engagement ring 33 can rotate together with the primary flywheel 1, and when the engagement ring 33 is internally meshed with the secondary flywheel ring gear 32 , the engagement ring 33 is internally meshed with the primary flywheel hub 31 and the secondary flywheel ring gear 32 at the same time, thereby synchronizing the primary flywheel hub 31 with the secondary flywheel ring gear 32 , and further synchronizing the primary flywheel 1 and the secondary flywheel 2 .

Specifically, as shown in FIGS. 2-5 , the engagement ring 33 is located between the primary flywheel 1 and the secondary flywheel 2 in the axial direction of the engine crankshaft, and the primary flywheel gear hub 31 is arranged on the primary flywheel 1 toward the secondary One side of the primary flywheel 2, the secondary flywheel ring gear 32 is arranged on the side of the secondary flywheel 2 facing the primary flywheel 1, and the engagement ring 33 is always in contact with the primary flywheel gear hub 31 during the axial movement of the engine crankshaft. engage. Engagement ring 33 is internally meshed or disengaged from secondary flywheel ring gear 32 by axial movement of the engine crankshaft of engagement ring 33 .

In order to facilitate the inner meshing of the engaging gear ring 33 and the secondary flywheel ring gear 32, each tooth of the engaging gear ring 33 is provided with a first guiding surface 332 of the engaging gear ring and a second guiding surface 333 of the engaging gear ring. Each tooth of the primary flywheel ring gear 32 is provided with a first guide surface 321 of the secondary flywheel ring gear which cooperates with the first guide surface 332 of the engagement ring gear and a secondary guide surface 321 which cooperates with the second guide surface 333 of the engagement ring gear. The second guide surface 322 of the flywheel ring gear. Optionally, the first guide surface 332 of the engagement ring, the second guide surface 333 of the engagement ring, the first guide surface 321 of the secondary flywheel ring gear and the second guide surface 322 of the secondary flywheel ring gear may be plane or arc surfaces.

It can be understood that, since the engaging ring gear 33 can rotate with the primary flywheel ring gear 31, when the engaging ring gear 33 is required to mesh with the secondary flywheel ring gear 32, the teeth of the engaging ring gear 33 and the teeth of the secondary flywheel ring gear 32 The teeth may be misaligned. For example, as shown in FIG. 8, the teeth of the secondary flywheel ring gear 32 are located on the right side of the teeth of the corresponding engaging ring gear 33. When the engaging ring gear 33 moves along the axial direction of the engine crankshaft, The first guide surface 332 cooperates with the first guide surface 321 of the secondary flywheel ring gear, and the teeth of the engagement ring gear 33 are guided to a position of internal meshing with the teeth of the secondary flywheel ring gear 32 .

Conversely, when the teeth of the secondary flywheel ring gear 32 are on the left side of the teeth of the corresponding engaging ring gear 33, when the engaging ring gear 33 moves along the axial direction of the engine crankshaft, the second guide surface 333 of the engaging ring ring and the secondary Cooperating with the second guide surface 322 of the flywheel ring gear, the teeth of the engagement ring gear 33 are guided to a position of internal meshing with the teeth of the secondary flywheel ring gear 32 .

From the above description, it can be seen that by setting the first guide surface 332 of the engagement ring, the second guide surface 333 of the engagement ring, the first guide surface 321 of the secondary flywheel ring gear, and the second guide surface 322 of the secondary flywheel ring gear, the engagement can be achieved. The gear ring 33 acts as a guide, so that the engaging gear ring 33 and the secondary flywheel ring gear 32 are smoothly internally meshed.

The drive assembly 4 may include a drive motor (not shown), a push rod 42 , a shift fork 43 and a slider 44 . In some specific examples of the present invention, the driving motor may be a starter motor of an engine of a vehicle, and the starter motor is used to start the engine. That is to say, the flywheel assembly 100 for a vehicle utilizes an existing starter motor, which saves manufacturing cost and saves layout space.

The push rod 42 can be connected with the driving motor to move along the axial direction of the engine crankshaft driven by the driving motor, wherein the axial direction of the engine crankshaft is the same as the axial direction of the push rod 42 .

The shift fork 43 is connected with the push rod 42, the slider 44 is fixed on the shift fork 43, and the slider 44 is slidable relative to the joint gear ring 33, and the shift fork 43 can push the joint gear ring 33 along the axial direction of the engine crankshaft through the slider 44. move.

7, the outer peripheral surface of the engaging gear ring 33 may be provided with a groove 331 extending in the circumferential direction of the engaging gear ring 33, and the slider 44 is slidably disposed in the groove 331, that is to say, the engaging gear ring 33 can rotate around the central axis of engaging gear ring 33 relative to slider 44 .

In a specific embodiment of the present invention, as shown in FIG. 7, the shift fork 43 may include a connecting portion 431, a first fork portion 432 and a second fork portion 433, and the first fork portion 432 and the second fork portion The parts 433 are all connected to the connecting part 431 , and the first fork part 432 and the second fork part 433 are arranged symmetrically with respect to the connecting part 431 .

As shown in FIG. 1 , an installation hole 4311 is provided on the shift fork 43 , specifically, the installation hole 4311 is provided on the connecting portion 431 . The push rod 42 is fixed in the installation hole 4311 , and one end extends out of the installation hole 4311 . In some optional embodiments, the mounting hole 4311 can be a round hole, and a part of the push rod 42 is formed as a cylinder that fits the mounting hole 4311. In some other optional embodiments, the mounting hole 4311 can be The polygonal hole, correspondingly, a part of the push rod 42 is formed as a cylindrical body with a polygonal cross-section adapted to the mounting hole 4311 .

As shown in FIG. 7 , the slider 44 may include a slider body 441 and a connecting column 442 disposed on the slider body 441 and adapted to be connected with the shift fork 43 . The connecting column 442 is threaded or welded or riveted on the shift fork 43 .

There can be two sliders 44, one of which can be connected to the first fork 432 through the connecting column 442 of the slider 44, and the other slider 44 can be connected to the first fork 432 through the connecting column 442 of the slider 44. The second fork 433, and the angle between the two sliders 44 is 180 degrees, that is to say, the first fork 432 and the second fork 433 surround the half of the toothed ring 33 in the first fork. In the area defined by the fork 432 and the second fork 433 . Therefore, the push rod 42 can more stably push the engagement ring 33 to move through the slider 44 , so that the internal meshing process between the engagement ring 33 and the secondary flywheel ring gear 32 is more stable.

1 and 2, the push rod 42 is provided with a starting gear 45, the primary flywheel 1 is provided with a primary flywheel starting ring gear 11 suitable for meshing with the starting gear 45, the primary flywheel starting ring gear 11 and the primary flywheel teeth The hubs 31 are respectively located on both sides of the primary flywheel 1. For example, as shown in FIG. One side of flywheel 2.

3-6, the starter motor is rigidly connected to the push rod 42, that is to say, the starter motor drives the push rod 42 to move, the shift fork 43 is rigidly connected to the push rod 42, and the shift fork 43 is connected to the starter motor through the push rod 42. Driven by the engine crankshaft, the shift fork 43 drives the engagement ring 33 to move along the engine crankshaft axis through the slider 44.

In a specific embodiment of the present invention, the push rod 42 can move between the first position and the second position along the axial direction of the crankshaft of the engine. When the push rod 42 is in the first position, the starter gear 45 and the primary flywheel starter ring gear 11 meshes, and the engaging ring gear 33 internally meshes with the secondary flywheel ring gear 32. When the push rod 42 is at the second position, the starting gear 45 is disengaged from the primary flywheel starting ring gear 11 , and the engagement ring 33 is disengaged from the secondary flywheel ring gear 32 . That is to say, as shown in Figures 3 and 4, when the engine is at rest, the push rod 42 is in the second position, the engagement ring 33 is internally meshed with the primary flywheel hub 31, and at this time the engagement ring 33 is engaged with the secondary flywheel The ring gear 32 is separated, and the starting gear 45 on the push rod 42 is also separated from the primary flywheel starting ring gear 11 simultaneously.

As shown in Figure 5 and Figure 6, when the engine is ignited, the push rod 42 moves (for example, moves forward) along the axial direction of the crankshaft of the engine, and drives the starter gear 45 to move until the push rod 42 moves to the first position, the push rod The starter gear 45 on 42 is externally meshed with the primary flywheel starter ring gear 11. During the movement of the push rod 42, the push rod 42 also pushes the shift fork 43 to move (for example, move forward) along the axial direction of the crankshaft of the engine, thereby driving the engagement The ring gear 33 moves, and when the push rod 42 moves to the first position, the engaging ring gear 33 engages with the gear hub 31 of the primary flywheel and the ring gear 32 of the secondary flywheel at the same time. At this time, the secondary flywheel 2 is synchronized with the primary flywheel 1 Rotating, the flywheel assembly 100 is in the state of a single-mass flywheel.

When the engine start is completed, the push rod 42 moves in the opposite direction (for example, moves backward) along the axial direction of the crankshaft of the engine, and the starter gear 45 on the push rod 42 disengages from the primary flywheel starter ring gear 11, while the push rod 42 drags the shift fork 43 reversely moves (for example, moves backward) along the axial direction of the crankshaft of the engine, thereby driving the engaging ring gear 33 to retreat, disengaging the engaging ring gear 33 from the secondary flywheel ring gear 32, and then recovering the performance of the dual mass flywheel.

From the above description, it can be seen that the starter gear 45 is synchronously meshed with the primary flywheel starter ring gear 11 and the engagement ring 33 is synchronously engaged with or synchronously separated from the secondary flywheel ring gear 32, that is, when the starter gear 45 meshes with the primary flywheel starter ring gear 11, the engaging gear The ring 33 is also meshed with the secondary flywheel ring gear 32 , and when the starter gear 45 is separated from the primary flywheel starter ring gear 11 , the engagement ring 33 is also separated from the secondary flywheel ring gear 32 .

In order to achieve the synchronous meshing and synchronous separation of the above two sets of gear structures (wherein the starting gear 45 and the primary flywheel starting ring gear 11 are one set, and the engaging gear ring 33 and the secondary flywheel ring gear 32 are another set), it can be reasonably designed The movable distance b of the push rod 42, and the installation position and width of the primary flywheel gear hub 31, the primary flywheel starting ring gear 11, the secondary flywheel ring gear 32, the engaging gear ring 33, and the starting gear 45 are reasonably designed, wherein the push rod 42 The movable distance b is the distance between the first position and the second position.

As shown in Figure 9, a is the width of the starting gear 45; b is the movable distance of the push rod 42; c is the gap between the starting gear 45 and the primary flywheel starting ring gear 11 when the push rod 42 is in the second position; d is the width of the primary flywheel starting ring gear 11; L1 is the width of the secondary flywheel ring gear 32; L2 is the gap between the secondary flywheel ring gear and the primary flywheel hub; L3 is the width of the primary flywheel hub; L4 is The width of the teeth on the engagement ring 33; L5 is the distance between the side of the engagement ring 33 adjacent to the secondary flywheel 2 and the side of the primary flywheel gear hub 31 adjacent to the secondary flywheel 2 when the push rod 42 is in the second position L6 is the distance between the side of the engagement ring 33 away from the secondary flywheel 2 and the side of the primary flywheel hub 31 away from the secondary flywheel 2 when the push rod 42 is in the second position.

In order to achieve the synchronous meshing and synchronous separation of the above two sets of gear structures (wherein, the starting gear 45 and the primary flywheel starting ring gear 11 are one set, and the engaging gear ring 33 and the secondary flywheel ring gear 32 are another set), a, b , c, d, L1, L2, L3, L4, L5, L6, satisfying the following relationship:

(1): L3=L4+L5+L6;

(2): L3=(1.2～1.5)*L4;

(3): b=L5+L2+(1/3～2/3)*L4;

(4): L1>1.2d;

(5): a≥1.2d;

(6): c+d<b<c+a.

Preferably, L5=L6=(L3-L4)/2, b=L5+L2+L4/2, thereby ensuring the above two sets of gear structures (wherein the starting gear 45 and the primary flywheel starting ring gear 11 are one set , the joint gear ring 33 and the secondary flywheel ring gear 32 are another set) in the case of synchronous meshing and synchronous separation, the design difficulty of the flywheel assembly 100 is lower and the structure is more compact.

The present invention also proposes an engine, which is provided with the flywheel assembly 100 for vehicles described in the above-mentioned embodiments, by providing a switching device 3 that can selectively synchronize the primary flywheel 1 and the secondary flywheel 2 of the flywheel assembly 100, Therefore, when the engine is ignited or started in a short period of time, resonance between the engine and the transmission is avoided, NVH performance is improved, and the service life of the flywheel assembly 100 is long.

The present invention also proposes a vehicle, which is provided with the above-mentioned flywheel assembly 100 for the vehicle or the above-mentioned engine, by setting the switching device 3 that can selectively synchronize the primary flywheel 1 and the secondary flywheel 2 of the flywheel assembly 100, so that When the engine is ignited or short-started, resonance between the engine and the transmission is avoided, NVH performance is improved, and the service life of the flywheel assembly 100 is long.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims (7)

1. A kind of 1. flywheel assembly (100) for vehicle, it is characterised in that including：

   Primary flywheel (1), the primary flywheel (1) are suitable to be fixed on the engine crankshaft of the vehicle；

   Secondary flywheel (2), the secondary flywheel (2) be connected by flexible member with the primary flywheel (1) and suitable for by from Clutch is connected with the speed changer of the vehicle；

   Switching device (3), the switching device (3) are arranged to the optionally synchronous primary flywheel (1) and the secondary Flywheel (2) is so that the primary flywheel (1) and secondary flywheel (2) synchronous axial system；

   The switching device (3) includes：

   Primary flywheel teeth hub (31), the primary flywheel teeth hub (31) are located on the primary flywheel (1)；

   Secondary flywheel ring gear (32), the secondary flywheel ring gear (32) are located on the secondary flywheel (2)；

   Engage ring gear (33), the engagement ring gear (33) and the normal internal messing of the primary flywheel teeth hub (31), and the engagement Ring gear (33) can along the axial movement of engine crankshaft with optionally with secondary flywheel ring gear (32) internal messing；

   Drive component (4), the drive component (4) are connected with the switching device (3) to drive the switching device (3) synchronous The primary flywheel (1) and the secondary flywheel (2)；

   The drive component (4) includes：

   Motor；

   Push rod (42), the push rod (42) are connected with the motor with axial direction described in the driving lower edge in the motor It is mobile；

   Shift fork (43), the shift fork (43) are connected with the push rod (42)；

   Sliding block (44), the sliding block (44) be fixed on the shift fork (43) and relatively it is described engagement ring gear (33) slidably, institute State shift fork (43) and the engagement ring gear (33) is promoted along the axial movement by the sliding block (44)；

   The push rod (42) is provided with starter toothed wheel (45)；

   The primary flywheel (1) is provided with the primary flywheel starting gear ring (11) for being suitable to engage with the starter toothed wheel (45), institute State the side that primary flywheel starting gear ring (11) is located at the remote secondary flywheel (2) of the primary flywheel (1), the primary Flywheel teeth hub (31) is located at the side of the neighbouring secondary flywheel (2) of the primary flywheel (1).
2. 2. the flywheel assembly (100) according to claim 1 for vehicle, it is characterised in that the engagement ring gear (33) Outer peripheral face be provided with circumferentially extending groove (331) along engagement ring gear (33), the sliding block (44) is slidably disposed in institute State in groove (331).
3. 3. the flywheel assembly (100) according to claim 1 for vehicle, it is characterised in that the motor is suitable to For the starting motor of the engine of the vehicle.
4. 4. the flywheel assembly (100) according to claim 1 for vehicle, it is characterised in that the push rod (42) can edge The axial direction is moved between the first location and the second location, when the push rod (42) is located at the first position, the starting Gear (45) engages with the primary flywheel starting gear ring (11), and the engagement ring gear (33) and the secondary flywheel ring gear (32) internal messing；When the push rod (42) is located at the second place, the starter toothed wheel (45) starts with the primary flywheel Gear ring (11) departs from, and the engagement ring gear (33) departs from the secondary flywheel ring gear (32).
5. 5. the flywheel assembly (100) for vehicle according to any one of claim 1-4, it is characterised in that described to connect Close to be equipped with the spigot surface of engagement ring gear first (332) being oppositely arranged on each tooth of ring gear (33) and engage ring gear second and be oriented to Face (333), is equipped with each tooth of secondary flywheel ring gear (32) and time for engaging the spigot surface of ring gear first (332) cooperation The level spigot surface of flywheel ring gear first (321) and with the secondary flywheel ring gear for engage spigot surface of ring gear second (333) and coordinating Two spigot surfaces (322).
6. 6. a kind of engine, it is characterised in that the engine is provided with to be used for according to any one of claim 1-5 The flywheel assembly (100) of vehicle.
7. 7. a kind of vehicle, it is characterised in that be provided with the flywheel group for vehicle according to any one of claim 1-5 Part (100) or engine according to claim 6.