阅读说明：本技术 双质量飞轮及该类型的双质量飞轮的使用 (The use of double mass flywheel and the double mass flywheel of the type ) 是由 马丁·德·沃斯 克劳斯·P·P·奎珀 哈拉尔德·施托夫费尔斯 贝恩德·斯坦纳 于 2019-05-09 设计创作，主要内容包括：本发明涉及一种尤其用于机动车辆的传动系的双质量飞轮,该双质量飞轮具有至少两个飞轮质量,该至少两个飞轮质量抵抗弹簧负载装置的弹簧力围绕双质量飞轮的公共旋转轴线可相互限制地旋转,其中-弹簧负载装置包括至少一个指形杠杆臂,该杠杆臂安装在第一飞轮质量上,并且相距公共旋转轴线一定距离地伸展,-为每个指形杠杆臂分配围绕旋转轴线可旋转地被安装的滚轮,该滚轮在杠杆臂的背离公共旋转轴线的外表面和第二飞轮质量的面向公共旋转轴线的内圆周表面之间布置并夹紧,并且-该外表面和该内圆周表面形成轨道,在第一飞轮质量和第二飞轮质量彼此相对旋转时,滚轮在该轨道上滚动。(The present invention relates to a kind of double mass flywheels of power train particularly for motor vehicles, the double mass flywheel has at least two flywheel masses, the spring force that at least two flywheel mass resists load on spring device can rotate with mutually limiting around the common rotating shaft line of double mass flywheel, wherein-load on spring device includes at least one finger-type lever arm, the lever arm is mounted in the first flywheel mass, and it is stretched at a distance of common rotating shaft line certain distance, the idler wheel being rotatably mounted for the distribution of each finger-type lever arm around rotation axis, the idler wheel being arranged and being clamped between the outer surface of common rotating shaft line and the inner circumferential surface towards common rotating shaft line of the second flywheel mass lever arm, and the outer surface and the inner circumferential surface form track, it is relative to each other in the first flywheel mass and the second flywheel mass When rotation, idler wheel rolls on that track.)

1. a kind of double mass flywheel (1) of power train particularly for motor vehicles, the double mass flywheel has at least two Flywheel mass (4,5), the spring force that at least two flywheel mass resists load on spring device (3) fly around double quality Take turns (1) common rotating shaft line (2) mutually limit it is rotatable, wherein

The load on spring device (3) includes at least one finger-type lever arm (6), and the lever arm is mounted on the first flywheel matter It measures on (4), and is stretched at a distance of common rotating shaft line (2) certain distance,

For the idler wheel (7) that each finger-type lever arm (6) distribution is rotatably mounted around rotation axis (7a), the rolling Take turns the lever arm (6) away from the common rotating shaft line (2) outer surface (6a) and the second flywheel mass (5) towards It arranges and clamps between the inner circumferential surface (5a) of the common rotating shaft line (2), and

The outer surface (6a) and the inner circumferential surface (5a) form track (9,10), in first flywheel mass (4) and When second flywheel mass (5) rotates relative to one another, the idler wheel (7) rolls on the track,

It is characterized by: the idler wheel (7) is furnished with eccentric mass (8), wherein the eccentric mass (8) is the weight with center of gravity (8), the rotation axis (7a) of the center of gravity and the idler wheel (7) has distance.

2. double mass flywheel (1) according to claim 1, it is characterised in that: the load on spring device (3) includes two The finger-type lever arm (6).

3. double mass flywheel (1) according to claim 1, it is characterised in that: the load on spring device (3) includes three The finger-type lever arm (6).

4. double mass flywheel (1) according to claim 1, it is characterised in that: the load on spring device (3) includes four The finger-type lever arm (6).

5. according to the described in any item double mass flywheels of preceding claims (1), it is characterised in that: at least one described finger-type thick stick Lever arm (6) is fixedly connect with first flywheel mass (4).

6. double mass flywheel (1) according to claim 5, it is characterised in that: at least one finger-type lever arm (6) benefit It is connect with common support ring (6b) with first flywheel mass (4).

7. double mass flywheel (1) according to claim 5 or 6, it is characterised in that: at least one described finger-type lever arm (6) it is designed as the form for the flexural spring fixed at one end.

8. according to the described in any item double mass flywheels of preceding claims (1), it is characterised in that: at least one described finger-type thick stick Lever arm (6) is stretched in a manner of tangent at a distance of common rotating shaft line (2) certain distance.

9. according to the described in any item double mass flywheels of preceding claims (1), it is characterised in that: at least one described finger-type thick stick Lever arm (6) movably and is pivotably mounted on first flywheel mass (4), wherein for each lever arm (6) The compressed spring of the load on spring device (3) is distributed, the compressed spring is right on the direction of the idler wheel (7) distributed Lever arm (6) applied force.

10. double mass flywheel (1) according to claim 9, it is characterised in that: on the one hand the compressed spring is supported on institute It states on the first flywheel mass (4), is on the other hand supported on the lever arm (6) distributed.

11. according to the described in any item double mass flywheels of preceding claims (1), it is characterised in that: the eccentric mass (8) sets It is calculated as semicircular.

12. double mass flywheel (1) according to any one of claim 1 to 10, it is characterised in that: the eccentric mass (8) it is designed as sickle-shaped.

13. according to the described in any item double mass flywheels of preceding claims (1), it is characterised in that: eccentric mass (8) rotation Turn fixedly to connect with the idler wheel (7).

14. a kind of use according to the described in any item double mass flywheels of preceding claims (1), it is characterised in that: described double Mass flywheel (1) uses in the power train of motor vehicles.

15. use according to claim 14, it is characterised in that: the crankshaft of the first flywheel mass (4) and internal combustion engine Connection.

16. use according to claim 14 or 15, it is characterised in that: the second flywheel mass (5) and the motor vehicles The power train speed changer connection.

Technical field

The present invention relates to a kind of double mass flywheel of power train particularly for motor vehicles, which has extremely Few two flywheel masses, at least two flywheel mass resist the spring force of load on spring device around the public of double mass flywheel Rotation axis can rotate with mutually limiting, wherein

Load on spring device includes at least one finger-type lever arm, which is mounted in the first flywheel mass, and It is stretched at a distance of common rotating shaft line certain distance,

For the idler wheel that the distribution of each finger-type lever arm is rotatably mounted around rotation axis, the idler wheel is in lever arm The cloth between the outer surface of common rotating shaft line and the inner circumferential surface towards common rotating shaft line of the second flywheel mass It sets and clamps, and

The outer surface and the inner circumferential surface form track, relative to each other in the first flywheel mass and the second flywheel mass When rotation, idler wheel rolls on that track.

In addition, the present invention relates to the uses of this kind of centrifugal pendulum mechanism.

Background technique

Vibration becomes more and more important in the construction and design of motor vehicles and internal combustion engine.With crank mechanism or song Oscillation phenomenon will be explained in further detail in the example of axis.

Crankshaft constitutes vibrational system together with geartrain components connected to it.Crankshaft passes through the rotary force changed over time Twisting vibration is motivated, which introduces crankshaft by the connecting rod being hinged on each crank-pin.The twisting vibration of crankshaft causes By noise caused by structure acoustic radiation and pass through noise caused by the structural noise in vehicle body and internal combustion engine.Work as song When axis is motivated within the scope of intrinsic frequency, this will lead to high twisting vibration amplitude, in some instances it may even be possible to lead to fatigue failure.The latter (i.e. fatigue failure) shows that vibration is also worked in terms of the intensity of component.

The twisting vibration of crankshaft leads to the fluctuation of speed of internal combustion engine, and also passes through transmission control or camshaft actuated It is transmitted to camshaft, wherein camshaft itself is also vibrational system, and can motivate other systems (especially another valve Mechanism) vibration.It is equally possible by the way that vibration is introduced other ancillary equipments by bent shaft-driven traction mechanism drive.This Outside, the vibration of crankshaft is introduced in power train, can complete to continue to transmit to gearbox and drive shaft by power train And the transmitting of the tire to vehicle.

In order to reduce the fluctuation of speed, routinely increase the quality of vibrational system by arranging flywheel on crankshaft.Due to Quality is larger, and system inertia increases.The rotary motion of crankshaft becomes more uniform.

If flywheel (be typically mounted on the side of crankshaft and be connected to the other side of speed changer by clutch) is designed as Double mass flywheel, then flywheel also has the function of reducing the damper of the twisting vibration between clutch and gearbox.

Double mass flywheel is for example described in 102,010 054303 A1 of German Prospectus DE and is of the invention Theme.

According to 102010054303 A1 of DE, each finger-type lever arm tool there are two the leg arranged at an angle to each other and It is bolted pivotly and is mounted on the first flywheel at a distance of the common rotating shaft line certain distance of flywheel mass. Each finger-type lever arm is by the compressed spring applied force of load on spring device, and wherein on the one hand compressed spring is supported on the first flywheel In quality, on the other hand it is supported on the inside towards common rotating shaft line of lever arm.In the slave common rotating shaft of lever arm Arranging and clamping between the inner circumferential surface towards common rotating shaft line of outer surface and the second flywheel mass that line deviates from can revolve Turn the idler wheel of ground installation.The inner circumferential surface of the outer surface of lever arm and the second flywheel mass forms track, when the first flywheel matter When amount and the second flywheel mass rotate relative to one another, idler wheel rolls on that track.

In order to inhibit the twisting vibration of crankshaft or power train, torsional vibration damper, i.e. torsional vibration damper can also be provided. Relative motion due to damper quality relative to crankshaft reduces a part of whirling vibration energy by frictional work.

More and more continually use so-called centrifugal pendulum mechanism as torsional vibration damper, they not in kinetic current Pendulum mass can resist excited vibration when being activated and move, and lead to the disappearance or damping of vibration with this.Traditional In damper or absorber, this effect only occurs under a certain frequency (i.e. the resonant frequency of absorber).However, for centrifugation Power pendulum device (restoring force is mainly determined by acting on the centrifugal force in pendulum mass in the apparatus) is related to speed adaptive and inhales Device is received, intrinsic frequency changes with speed, because centrifugal force depends on speed.Can therefore it be disappeared by means of centrifugal pendulum mechanism Except the order of fixed excitation is rather than just fixed frequency.This especially has the advantage that in internal combustion engine, sends out in internal combustion Centrifugal pendulum mechanism is adapted to any excitation order in motivation and preferably centrifugal pendulum mechanism disappears vibration completely.

102006028556 A1 of German Prospectus DE describes in the power train of motor vehicles arrangement and effectively This type centrifugal pendulum mechanism, the centrifugal pendulum mechanism be used for absorb or damping transmission system in whirling vibration.Germany is open 102011105029 A1 of specification DE describes another centrifugal pendulum mechanism.

The centrifugal pendulum mechanism of 102006028556 A1 of DE, which has, surrounds the rotatable pendulum mass load-bearing part of rotation axis With at least one pendulum mass pair, the pendulum mass to include be arranged on pendulum mass load-bearing part and be positioned relative to each other and At a distance of two pendulum masses of rotation axis certain distance.Pendulum mass movably connect (i.e. movement coupling with pendulum mass load-bearing part Close), wherein pendulum mass have arc groove, in the groove on pendulum mass load-bearing part installation and guide roller.Arc groove The track of idler wheel is formed, and the movement of pendulum mass is provided.

It shuts down in internal combustion engine or in the case where static pendulum mass load-bearing part, pendulum mass may be at their shapes At unbalanced position.This problem is when especially pendulum mass load-bearing part rotates again (such as in starting internal combustion engine When), and pendulum mass must just be rocked to operating position (when introducing rotary motion) in its start-up course.The result is that increasing Noise emissions together with pendulum mass bearing (especially bearing pin) high load capacity.Increased abrasion is starting or swing pendulum mass Another adverse effect.

Not only when starting or restarting internal combustion engine, but also when stopping engine, pendulum mass can all occur uncontrolled The movement of system.When being lower than certain speed, the gravity of pendulum mass has been more than the pendulum mass load-bearing part due to rotation and has acted on pendulum Centrifugal force in quality, so that the movement of pendulum mass is largely determined by gravity.It as a result is again click or increased Noise emissions.The related high load of pendulum mass bearing or roller pin causes abrasion to increase.

In this case it should be noted that the starting of internal combustion engine or restart number increase because be used for vehicle Stopping and operation operation Modern Concepts (also referred to as starting/stop mode) close engine rather than dally it not have Fuel consumption is reduced when transient dynamics demand.

Such design has been developed due to the above reasons, can start or stop internal-combustion engine using the design The uncontrolled movement of pendulum mass is at least limited or constrained when machine.

102014224329 A1 of German Prospectus DE describes the centrifugal pendulum mechanism for realizing this design, according to The specification provides effective locking device depending on centrifugal force radially outside pendulum mass for pendulum mass, which is put Quality load-bearing part is removably received by.

Summary of the invention

In view of above-mentioned background, the object of the present invention is to provide a kind of double matter as described in the preamble according to claim 1 Flywheel is measured, is further improved compared with the existing technology.

Another specific item of the invention is the use for showing this double mass flywheel.

The double mass flywheel by the power train particularly for motor vehicles of first specific item solves, double mass flywheel tool There are at least two flywheel masses, which resists the spring force of load on spring device around double mass flywheel Common rotating shaft line can rotate with mutually limiting, wherein

Load on spring device includes at least one finger-type lever arm, which is mounted in the first flywheel mass, and It is stretched at a distance of common rotating shaft line certain distance,

For the idler wheel that the distribution of each finger-type lever arm is rotatably mounted around rotation axis, the idler wheel is in lever arm The cloth between the outer surface of common rotating shaft line and the inner circumferential surface towards common rotating shaft line of the second flywheel mass It sets and clamps, and

The outer surface and the inner circumferential surface form track, relative to each other in the first flywheel mass and the second flywheel mass When rotation, idler wheel rolls on that track,

And it is characterized in that, idler wheel is furnished with eccentric mass, wherein eccentric mass is the weight with center of gravity, the center of gravity with The rotation axis of idler wheel has distance.

According to the present invention, the idler wheel of the finger-type lever arm of double mass flywheel is distributed to equipped with eccentric mass, that is to say, that is set Be equipped with weight, the weight relative to idler wheel rotation axis off-center place or arrange.

If the first flywheel mass and the second flywheel mass for example due to the rotation speed change of the crankshaft of internal combustion engine or turn Speed fluctuation rotates relative to one another, then eccentric mass is set (i.e. eccentric and revolve into rotation due to the idler wheel that then rolls Turn), and turn to side or the other side.Eccentric mass be activated to vibrate and when motivating it is mobile and play resistance in this way Buddhist nun's effect.

The pendulum mass that eccentric mass is similar to centrifugal pendulum mechanism works, and as follows, passes through the shifting of eccentric mass The fluctuation of speed of the position damping due to displacement triggering.

Different from the pendulum mass of some centrifugal pendulum mechanisms, any uncontrolled movement will not occur for eccentric mass, this The uncontrolled movement of class will lead to click or increase noise and cause higher abrasion.

The double mass flywheel that conception according to the present invention is suitable for having sold on the market, i.e., for for the prior art Described in traditional double mass flywheel improvement, in the sense, it is only necessary to slight structure change is carried out, wherein relating to And provide eccentric mass.

Using double mass flywheel according to the present invention, the first purpose of this invention is realized, that is, the double quality provided fly Wheel, is further improved compared with the existing technology.

Other advantageous embodiments of double mass flywheel are discussed in conjunction with dependent claims.

Spring load device includes that two finger-type lever arms are advantageous in the embodiment of double mass flywheel.

Using more than one finger-type lever arm, that is, two or more finger-type lever arms are utilized, double quality may be implemented The specific symmetry of flywheel, this specific symmetry can not achieve when only providing a finger-type lever arm.

The symmetry of the above-mentioned type ensures the distribution of weight more evenly of double mass flywheel, wherein especially can be to avoid shape At imbalance.In addition, there is advantage in double mass flywheel or in terms of effect thereon or the power applied.The result is that more favorable power Distribution.

Therefore, because above-mentioned reason, spring load device includes three finger-type levers in the embodiment of double mass flywheel Arm or four finger-type lever arms are advantageous, and also provide five or six finger-type lever arms when necessary.

It is to have that at least one finger-type lever arm, which is fixedly connected to the first flywheel mass, in the embodiment of double mass flywheel Benefit.Then, at least one lever arm is irremovably connected to the first flywheel mass.In order to still formed spring effect and The idler wheel distributed can be clamped or applied force, and finger-type lever arm must be elastically deformable, preferably in side The form of the flexural spring or leaf spring that are clamped or bias.Dispensable or conventional additional springs be no longer it is required, should Additional springs are supported in the first flywheel mass and on the direction of idler wheel to lever arm applied force.Lever arm itself is in this reality It applies the spring for forming load on spring device in example or forms load on spring device.

In this case, at least one finger-type lever arm is connected using common support ring in the embodiment of double mass flywheel The first flywheel mass is connected to be advantageous.

In this case, multiple lever arms can be integrally attached to common support ring, so that provided lever arm Global facility is formed with support ring.The latter's (global facility) leads to the reduction of number of components and especially convenient for double mass flywheel Assembling.

At least one finger-type lever arm is designed as one in the embodiment of double mass flywheel as already mentioned above The fixed flexural spring in side is advantageous.

In principle, in the embodiment of double mass flywheel at least one finger-type lever arm in a manner of tangent at a distance of public rotation It stretches to shaft axis certain distance and is advantageous.

At least one finger-type lever arm movably and is pivotably mounted on first in the embodiment of double mass flywheel Be also possible in flywheel mass it is advantageous, wherein for each lever arm distribute load on spring device compressed spring, the compression bullet Spring is on the direction of the idler wheel distributed to lever arm applied force.

In this case, in the embodiment of double mass flywheel on the one hand compressed spring is supported on the first flywheel mass On, it is on the other hand supported on distributed lever arm and is advantageous.

Eccentric mass is designed as semicircular be advantageous in the embodiment of double mass flywheel.Eccentric mass is relative to rolling The rotation axis of wheel forms imbalance, can be formed by shape similar with the counterweight on crankshaft, this is to balance rotation Pignus pignoris amount or inertia force and provide.

Here, eccentric mass is not necessarily shape that is semicircular, but usually can have circle segments.

Therefore, eccentric mass is sickle-shaped is also advantageous in the embodiment of double mass flywheel.

Eccentric mass is connected in a rotationally fixed manner on idler wheel and is advantageous in the embodiment of double mass flywheel.So Afterwards, eccentric mass is not to be removably couplable on idler wheel, and be rigidly fixed on idler wheel and couple with roller motion, Wherein eccentric mass receives the constraint of the idler wheel of rolling, i.e., is controlled by it.

The second specific item that the present invention is based on, that is, it indicates the use of the double mass flywheel of aforementioned type, is by will be double What mass flywheel was used to realize in the power train of motor vehicles.

The first flywheel mass is connected with the crankshaft of internal combustion engine and is advantageous in embodiment.Then, the first flywheel Quality serves as primary flywheel quality, that is, is used as input part.

It is also advantageous that the speed changer of the second flywheel mass and the power train of motor vehicles connects in embodiment.With Afterwards, the second flywheel mass serves as secondary flywheel quality, that is, is used as output block.

Detailed description of the invention

It hereinafter, will the present invention will be described in more detail by embodiment and according to Fig. 1, Fig. 2 and Fig. 3.In figure:

Fig. 1 schematically shows the segment of the first embodiment of double mass flywheel with side view, double mass flywheel tool There is centrally located eccentric mass；

Fig. 2 shows the schematic side elevation of the embodiment of double mass flywheel shown in Fig. 1, which has Positioned at the eccentric mass of the first inflection point；With

Fig. 3 shows the schematic side elevation of the embodiment of double mass flywheel shown in Fig. 1, which is located at The eccentric mass of second inflection point.

Specific embodiment

Fig. 1 schematically shows the segment of the first embodiment of double mass flywheel 1 with side view, double mass flywheel tool There is centrally located eccentric mass 8.

There are two flywheel mass 4,5, at least two flywheel masses 4,5 to surround common rotating shaft line 2 for the tool of double mass flywheel 1 It can rotate with mutually limiting, wherein the spring force of load on spring device 3 is resisted or offset in rotary motion.

Load on spring device 3 includes both of the aforesaid finger-type lever arm 6, and lever arm is integrally formed with common support ring 6b, and And therefrom show lever arm 6.Lever arm 6 is fixedly connect with the first flywheel mass 4 using common support ring 6b.

Finger-type lever arm 6 is in the form design of the fixed flexural spring in side, flexural spring phase in a manner of tangent Stretch to 2 certain distance of common rotating shaft line away from flywheel mass 4,5.

Idler wheel 7 is distributed for each finger-type lever arm 6, which is rotatably mounted around rotation axis 7a, and should Idler wheel lever arm 6 away from common rotating shaft line 2 outer surface 6a and second flywheel mass 5 towards common rotating shaft line 2 Inner circumferential surface 5a between arrange and clamp.

Outer surface 6a and inner circumferential surface 5a forms track 9,10, in the first flywheel mass 4 and the second flywheel mass 5 When rotating relative to one another, idler wheel 7 rolls on that track.

Idler wheel 7 is furnished with eccentric mass 8, and wherein eccentric mass 8 is above-mentioned semicircular weight 8, the center of gravity and rolling of the weight The rotation axis 7a of wheel 7 has distance.

Fig. 2 schematically shows implementation shown in Fig. 1 of the double mass flywheel 1 with eccentric mass 8 with side view Example, the eccentric mass 8 are located at the first inflection point.It will attempt to explain difference related with the moment shown in FIG. 1, therefore with reference to figure 1 and associated description.Identical appended drawing reference is used for identical component.

At the time of shown in Fig. 2, eccentric mass 8 is deflected to the right, wherein due to the rotary motion according to white curved arrow, Eccentric mass 8 generates or causes the damping inertia force for corresponding to the straight arrow of black for being directed toward right side.

Fig. 3 schematically shows the embodiment of double mass flywheel 1 shown in Fig. 1 with side view, the eccentric mass 8 In the second inflection point.It will attempt to explain difference relevant to the moment shown in Fig. 1, therefore refer to Fig. 1 and associated description.Phase Same appended drawing reference is used for identical component.

At the time of shown in Fig. 3, eccentric mass 8 deflects to the left, wherein due to the rotary motion according to white curved arrow, Eccentric mass 8 generates or causes the damping inertia force for corresponding to the straight arrow of black for being directed toward left side.

Reference signs list:

1 double mass flywheel

2 common rotating shaft lines

3 load on spring devices

4 first flywheel masses, primary flywheel quality, input part

5 second flywheel masses, secondary flywheel quality, output block

The inner circumferential surface of the second flywheel mass of 5a

6 finger-type lever arms

The outer surface of 6a finger-type lever arm

6b common support ring

7 idler wheels

The rotation axis of 7a idler wheel

The weight of 8 eccentric mass, eccentric mass

The track of 9 idler wheels

The track of 10 idler wheels