CN109695661A - The purposes of the centrifugal force pendulum device of centrifugal force pendulum device and the type - Google Patents

The purposes of the centrifugal force pendulum device of centrifugal force pendulum device and the type Download PDF

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Publication number
CN109695661A
CN109695661A CN201811207979.4A CN201811207979A CN109695661A CN 109695661 A CN109695661 A CN 109695661A CN 201811207979 A CN201811207979 A CN 201811207979A CN 109695661 A CN109695661 A CN 109695661A
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CN
China
Prior art keywords
pendulum
centrifugal force
bracket
pendulum device
force pendulum
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CN201811207979.4A
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Chinese (zh)
Inventor
乌利齐·伯特伦
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Ford Global Technologies LLC
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Ford Global Technologies LLC
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Publication of CN109695661A publication Critical patent/CN109695661A/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/14—Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers
    • F16F15/1407—Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers the rotation being limited with respect to the driving means
    • F16F15/145—Masses mounted with play with respect to driving means thus enabling free movement over a limited range
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
    • F16F15/131—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses
    • F16F15/13107—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses for damping of axial or radial, i.e. non-torsional vibrations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
    • F16F15/131—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses
    • F16F15/133—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses using springs as elastic members, e.g. metallic springs
    • F16F15/1333—Spiral springs, e.g. lying in one plane, around axis of rotation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
    • F16F15/131—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses
    • F16F15/133—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses using springs as elastic members, e.g. metallic springs
    • F16F15/1336—Leaf springs, e.g. radially extending

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)

Abstract

The present invention relates to a kind of centrifugal force pendulum device (1), the centrifugal force pendulum device (1) has at least one can be around the pendulum bracket (3) of rotation axis (2) rotation, and have at least two to be set as moving on pendulum bracket (3), pendulum (the 4a for being located opposite to each other and being spaced apart with rotation axis (2), 4b), pendulum (4a, 4b) there is arch opening (6a, 6b), roller bearing pin (the 5a of pendulum bracket (3), 5b) it is joined to arch opening (6a, in 6b), thus pendulum (4a, 4b) energetically guided in kinematics.It is intended to provide a kind of centrifugal force pendulum device (1) of restarting optimization especially for internal combustion engine.This passes through centrifugal force pendulum device (1) Lai Shixian, wherein each pendulum (4a, 4b) it is assigned passive automatic control stop device (7), the passive automatic control stop device (7) includes stop weight (7a), stopping element (7b) and spring element (7c), distribute to pendulum (4a, the spring element (7c) of each stop device (7) 4b) is arranged in pendulum (4a, it radially outer 4b) and is mounted on pendulum bracket (3) in a manner of fixed on position, and stopping element (7b) is in the predetermined rotary speed n for being lower than pendulum bracket (3)carrier,fixWhen be joined in pendulum (4a, 4b) and pendulum (4a, 4b) be fixed on to the external position being farthest spaced apart with rotation axis (2) relative to pendulum bracket (3).

Description

The purposes of the centrifugal force pendulum device of centrifugal force pendulum device and the type
Technical field
The present invention relates to a kind of centrifugal force pendulum device, which has at least one can be around rotation axis rotation Pendulum bracket, and there are at least two pendulums, two pendulums are set as moving on pendulum bracket, be located opposite to each other simultaneously And be spaced apart with rotation axis, pendulum is open with arch, and the roller bearing pin of pendulum bracket is joined in arch opening, thus puts Hammer is energetically guided in kinematics.
The invention further relates to the purposes of the centrifugal force pendulum device of the type.
Background technique
It is growing day by day to the attention of vibration in the construction and design of motor vehicles and internal combustion engine.Especially, it attempts Influence the noise generated by internal combustion engine.The motivation of this development is derived to a true understanding, the i.e. purchase of consumer Buying decision is also jointly influenced by the noise of internal combustion engine and vehicle, especially from the perspective of comfort.Pass through hair The sound that vehicle body is propagated is introduced into bodyshell for the driver comfort of acoustics with especially important by motivation bearing arrangement Meaning.
With crank driving mechanism or crankshaft as an example, will in more detail Brief Discussion vibrate the phenomenon that.
Crankshaft forms vibrational system together with the driveline components being connected to thereon.Here, by changing over time Rotary force so that the crankshaft is executed whirling vibration, which introduces song by the connecting rod being hinged on each crankshaft journal In axis.Here, the radiation for the sound that the whirling vibration of crankshaft is propagated due to vehicle body and lead to noise, and due also to vehicle body is passed The sound broadcast is introduced into bodyshell and internal combustion engine and leads to noise.Here, swashing within the scope of intrinsic frequency in crankshaft In the case where hair, in fact it could happen that high whirling vibration amplitude, this possibly even leads to permanent fault.The latter shows vibration also in portion It works in terms of the intensity of part.
The whirling vibration of crankshaft causes the rotation speed of internal combustion engine to fluctuate and also by timing mechanism or camshaft Transmission mechanism is transmitted to camshaft, and wherein camshaft itself also constitutes vibrational system and can make other system (especially It is remaining tappet gear) vibration.By the way that vibration is introduced into other auxiliary by bent shaft-driven traction mechanism driver It is equally possible in unit.In addition, the vibration of crankshaft is introduced in power drive system, it can by the power drive system Onwards transmission occurs into gearbox and transmission shaft until the tire of vehicle.
In order to reduce rotation speed fluctuation, usually increase the quality of vibrational system by the way that flywheel is arranged on crankshaft.By The quality of Yu Geng great, so system shows increased inertia.The rotary motion of crankshaft becomes more evenly.
If being usually fastened to crankshaft on side and being connected to the flywheel of gearbox by clutch on another side It is designed to double mass flywheel, then in addition flywheel executes the damper for reducing the whirling vibration between clutch and transmission mechanism Function.
In order to inhibit the whirling vibration in crankshaft or power drive system, rotary shock absorber, i.e. torsion damping can be provided Device.Due to relative motion of the quality relative to crankshaft of damper, thus the whirling vibration energy of a part by frictional work come It dissipates.
So-called centrifugal force pendulum device is used as torsional vibration damper to use pendulum (its of the centrifugal force pendulum device more and more It is not located in power flow) it is shifted against with the vibration of excitation in the case where excitation, and therefore lead to declining for the vibration Subtract or inhibits.In the case where traditional damper or absorber, only in specific frequency, (especially absorber is humorous for this effect Vibration frequency) under generate.In contrast, centrifugal force pendulum device (wherein restoring force is mainly determined by acting on the centrifugal force on pendulum) It is the adaptive absorber of rotation speed, intrinsic frequency changes with rotation speed, because centrifugal force depends on rotation speed. Therefore, by centrifugal force pendulum device, it is possible for absorbing fixed firing order rather than just fixed frequency.This especially exists There is advantage, wherein centrifugal force pendulum device may be adapted to and preferably any excitation of complete attenuation is secondary in the case where internal combustion engine Sequence.
10 2,006 028 556 A1 of German Prospectus DE describes a kind of legal pendulum dress in center of type It sets, which is arranged in the power drive system of motor vehicles and works wherein, and the pendulum device is for inhaling Receive or inhibit the whirling vibration in power drive system.It is described in 10 2,011 105 029 A1 of German Prospectus DE Other centrifugal force pendulum device.
The centrifugal force pendulum device of 10 2,006 028 556 A1 of DE has the pendulum bracket that can be rotated around rotation axis, and And there is at least one pendulum pair, the pendulum to comprising be set as moving on pendulum bracket, be located opposite to each other and with Rotation axis two pendulums spaced apart.Pendulum is movably coupled to and (is kinematically coupled) to pendulum bracket, wherein putting Hammer has arch opening, and the roller bearing on pendulum bracket is arranged in and installs and guides in arch opening.Arch is open to form rolling The raceway of axis and the movement for predefining pendulum.
Fig. 1 a, 1b and 1c show the centrifugal pendulum as disclosed in 10 2,006 028 556 A1 of DE with simplified signal Device, wherein Fig. 1 a shows the centrifugal force pendulum device in so-called nought state or neutral center, and Fig. 1 b, which is shown, to be in (i.e. internal combustion engine is not run or crankshaft does not revolve when the centrifugal force pendulum device and Fig. 1 c of operating position are shown in stationary vehicle When turning) position centrifugal force pendulum device.
Shown in centrifugal force pendulum device 1 have can around rotation axis 2 rotate pendulum bracket 3, and have be set as Two pendulums 4a, 4b of pendulum pair are moved and formed in the current situation on pendulum bracket 3.Pendulum 4a, 4b have arch Be open 6a, 6b, is located opposite to each other, is spaced apart with rotation axis 2, and passes through product in roller bearing pin 5a, 5b installation and kinematics Polar region guidance, roller bearing pin 5a, 5b are joined in opening 6a, 6b of pendulum bracket 3, wherein in the range of the invention, pendulum 4a, 4b are considered being spaced apart with rotation axis 2 in the case where their center of gravity has spacing with rotation axis 2.Arch opening 6a, 6b constitute raceway 6a, the 6b for being used for roller bearing pin 5a, 5b, and therefore predefine the movement of pendulum 4a, 4b.
When internal combustion engine is not run or pendulum bracket 3 is static, pendulum 4a, 4b can take position shown in Fig. 1 c It sets, and imbalance is consequently formed.Which results in some problems, especially when pendulum bracket 3 is set as rotating again, such as One activated internal combustion engine, and (i.e. once beginning rotary motion) during the start-up course, pendulum 4a, 4b must be first Pass through vibrational stabilization to operating position as shown in Figure 1 b.This leads to increased noise emissions, especially rolls together with pendulum bearing The top load of pivot pin.Increased abrasion is the further adverse effect of starting or the stable oscillation stationary vibration of pendulum.
The uncontrolled movement of pendulum is not only once activated or restart internal combustion engine, but also once pass Internal combustion engine is closed just to occur.
When lower than specific rotation speed ncarrierWhen, the gravity of pendulum due to rotation pendulum bracket and be more than to act on Centrifugal force on pendulum, so that the movement of pendulum is mainly determined by gravity.Correspondingly, the result is that click or increased noise Discharge.The related top load of pendulum bearing or roller bearing pin leads to increased abrasion.
In such a case it is necessary in view of the quantity of starting or the restarting of internal combustion engine increases, because being used for The modern of the operation that loiters (also referred to as starting/stop mode) of vehicle conceives deactivated internal combustion engine without being to continue with idle It is operated under speed, to reduce fuel consumption in the case where no electricity needs.In fact, this means that at least quiet in vehicle Internal combustion engine is deactivated when only.One of the operation application that loiters is in the traffic congestion for example on highway and highway The traffic encountered.In intown traffic, since the operation that there are non-coordinating traffic signals, loiters no longer is exception It is rule.In addition application is gate railroad grade crossing etc..Therefore, the quantity of start-up course increases.
Such design has been developed due to the above reasons, at least can limit or constrain pendulum one using the design Uncontrolled movement that is activated or closing internal combustion engine.
A kind of centrifugal pendulum for realizing this design is described in 10 2,014 224 329 A1 of German Prospectus DE Device.
In 10 2,014 224 329 A1 of DE, in the radially outer of pendulum, it is provided with locking device, the locking device Pendulum is acted in a manner of depending on centrifugal force, locking device is received by pendulum bracket, to move.
Here, locking device includes spring element, locking member and centrifugal weight.Spring element is preloaded so that when pendulum When hammering cradle stationary into shape, locking member is acted on the power in the inward direction (i.e. on the direction of rotation axis).When pendulum bracket When turnover (rotating), acts on the centrifugal force on centrifugal weight and on relevant locking member and change with rotation speed. If centrifugal force is more than spring force, centrifugal weight is opposite with spring force is moved radially outward for locking member connection, and puts Hammer can at least be vibrated in a manner of constraint.Pendulum the duration of oscillation freedom of motion with rotation speed increase or centrifugation The rising of power and be continuously increased.That is, the effect of locking device reduces with the increase of centrifugal force.On the other hand, with The reduction of centrifugal force, locking member gradually inwardly push pendulum.When pendulum cradle stationary, pendulum is with bullet in any position The power of spring element acts on.Due to generating and eliminating the frequency of the positive locking between pendulum and relevant barrier element again, It can be observed that the high level abrasion of retention device.
Summary of the invention
For above-mentioned background technique, the object of the present invention is to provide a kind of preamble according to claim 1 from Heart pendulum device can be overcome the problems, such as well known in the prior art by the centrifugal force pendulum device.
Another specific item of the invention is the purposes for illustrating the centrifugal force pendulum device of the type.
First specific item realizes that there is the centrifugal force pendulum device at least one can surround rotation axis by centrifugal force pendulum device The pendulum bracket of rotation, and have at least two to be set as moving on pendulum bracket, be located opposite to each other and with rotation Shaft axis pendulum spaced apart, pendulum are open with arch, and the roller bearing pin of pendulum bracket is joined in arch opening, thus put Hammer is energetically guided in kinematics, and centrifugal force pendulum device is distinguished by a fact, i.e., each pendulum is assigned passive stop Device, the passive stop device using centrifugal effect from controlling and include stop weight, stopping element and spring element,
The radially outer of pendulum is arranged in and with solid on position in the spring element for distributing to each stop device of pendulum Fixed mode is mounted on pendulum bracket, and
Stopping element is in the predetermined rotary speed n for being lower than pendulum bracketcarrier,fixWhen be joined in pendulum and relative to Pendulum is fixed on the external position being farthest spaced apart with rotation axis by pendulum bracket.
The pendulum of centrifugal force pendulum device according to the present invention is assigned a stop device, the stop device in each case Include stop weight, stopping element and spring element.Here, spring element unlike in the prior art by pendulum bracket with Moveable mode receives.According to the present invention, (such as clamping on side) is fixedly mounted on spring element position in pendulum On bracket.
By stopping element according to the present invention in the predetermined rotary speed n for being lower than pendulum bracketcarrier,fixWhen will be related Pendulum the fact that be fixed on the external position being farthest spaced apart with rotation axis relative to pendulum bracket, as long as predetermined Rotation speed is exceeded and once pendulum is released, pendulum can free mode vibrate.
If pendulum bracket is more than predetermined rotary speed ncarrier,fix, then stop weight is together with stopping element and spring force phase Instead radially outwardly advances and discharge pendulum.Here, as long as the rotation speed of pendulum bracket is higher than predetermined rotary speed ncarrier,fix, therefore stopping element no longer can influence or be constrained the movement of pendulum in a manner of energetically controlled, especially The pendulum can no longer be fixed.
That is, the effect of stop device will not reduce with the increase of centrifugal force, but subtracting with centrifugal force It is small and increase.According to the present invention, actively controlled pendulum can be vibrated in a manner of free or pendulum is fixed 's.
The frequency for generating and eliminating again the positive locking between pendulum and relevant stopping element can be significantly reduced, from And reduce the abrasion of stop device.
Stop device according to the present invention has been suitable for centrifugal force pendulum device in the market, i.e., for retouching in the prior art The repacking for the conventional centrifugal pendulum device stated, in some sense, it is only necessary to carry out small design modification.
Because according to the present invention, pendulum is fixed on the outermost position that they are farthest spaced apart with rotation axis Set, so, if pendulum bracket it is static or to be set as rotating again together with fixed pendulum when the rotation of low rotation speed or It is rotated with bigger speed, then pendulum bracket has extra high inertia or extra high used relative to rotation axis together with pendulum Property square.Higher inertia has been proved in terms of reducing the rotation speed fluctuation in power drive system or crankshaft be advantageous 's.
Using centrifugal force pendulum device according to the present invention, the first purpose that the present invention is based on is realized, that is to say, that provide A kind of centrifugal force pendulum device can be overcome the problems, such as well known in the prior art using the centrifugal force pendulum device.
Other advantageous embodiments that will combine dependent claims that centrifugal force pendulum device is discussed.
The following embodiment of centrifugal force pendulum device is advantageous, and wherein stop weight also serves as stopping element.In present case Under, there is the fact that quality using each component (therefore being also stopping element).In this respect, stopping element may be used as stop Weight, vice versa.
In this way, reduce the quantity of component, and simplify the structure of stop device.This further reduces dresses Set the cost of production.
The following embodiment of centrifugal force pendulum device is advantageous, and wherein pendulum has the recess portion for receiving stopping element.It is recessed Portion is preferably provided on the outside of pendulum, i.e., on that side in pendulum away from rotation axis.This, which corresponds to, is arranged in pendulum Radially outer spring element position.
As the alternative solution of recess portion, providing holes or ring, eyelet, clip or allow with stopping element positive locking and Therefore some other engagement devices of fixed pendulum are also possible.
The following embodiment of centrifugal force pendulum device is advantageous, and wherein spring element is leaf spring, side (i.e. at one end) It is fixedly mounted on pendulum bracket on position.
In this case, the following embodiment of centrifugal force pendulum device is advantageous, and wherein leaf spring is side (i.e. at one end) It is fixedly connected to pendulum bracket.
If using leaf spring as spring element, the following embodiment of centrifugal force pendulum device can be advantageous, wherein plate Spring receives stop weight in free end.
The following embodiment of centrifugal force pendulum device is also possible to advantageous, and wherein spring element is helical spring, the spiral bullet Spring is installed on pendulum bracket in a manner of fixed on position side (i.e. at one end).Then, helical spring preferably edge Its longitudinal axis (i.e. along the axis of screw) load and compression.
If using helical spring as spring element, the following embodiment of centrifugal force pendulum device can be advantageous, Middle helical spring is mounted at one end on pendulum bracket, and receives stop weight in another free end.
The following embodiment of centrifugal force pendulum device is advantageous, wherein there are two arches to be open for each pendulum tool.Pendulum bracket Two roller bearing pins be joined in opening, wherein between roller bearing pin and relevant opening, on the one hand have sufficiently large clearance Degree is so that roller bearing pin can be moved unhinderedly in the opening, still, on the other hand, not excessive clearance degree, so as to Prevent the click of roller bearing pin in the opening.Only in this way pendulum can be just considered as and energetically be drawn within the meaning of the present invention It leads.
The following embodiment of centrifugal force pendulum device is advantageous, and wherein the convex surface of arch opening is towards rotation axis.
The embodiment ensures that relevant pendulum is fixed relative to pendulum bracket or can be fixed on and rotate by stopping element Thus the external position that axis is farthest spaced apart enables the pendulum of release vibrate in a manner of free for the first time It is possibly realized.
The following embodiment of centrifugal force pendulum device is advantageous, wherein being lower than predetermined rotary speed ncarrier,fixWhen it is fixed every A pendulum is fixed on symmetric position relative to rotation axis.This can advantageously help to realize that fixed pendulum will not be relative to rotation The pendulum bracket turned forms imbalance.
The following embodiment of centrifugal force pendulum device is advantageous, wherein being lower than predetermined rotary speed ncarrier,fixWhen fixed pendulum Hammer will not form imbalance relative to the pendulum bracket of rotation.
Then, even if when pendulum cradle stationary or when internal combustion engine is not run, centrifugal pendulum dress according to the present invention The pendulum set does not use them to form unbalanced position yet.Therefore, (it is made problem well known in the prior art by a fact At, i.e., when static pendulum bracket is set as rotating again, as soon as such as activated internal combustion engine, pendulum must first from Non-equilibrium site is transferred to operating position) it is eliminated.
If static pendulum bracket is arranged to rotate, such as an activated internal combustion engine, then pendulum is working as cause It is located at them under condition and does not form unbalanced position.In this respect, the embodiment discussed is especially suitable in the mould that loiters The internal combustion engine that can be operated or operate under formula.
The following embodiment of centrifugal force pendulum device is advantageous, wherein the quality and spring element that use stop weight are at least One characteristic variable limits predetermined rotary speed ncarrier,fix。
The following embodiment of centrifugal force pendulum device is advantageous, wherein each pendulum has crescent curved basic configuration.
The following embodiment of centrifugal force pendulum device is advantageous, and wherein roller bearing pin and/or opening are coated.
The following embodiment of centrifugal force pendulum device is advantageous, and wherein roller bearing pin and/or opening are surface treated.
It can be used for setting the coefficient of friction in bearing arrangement and therefore according to the coating of above-described embodiment or surface treatment Centrifugal force pendulum device is adjusted, wherein restoring force is mainly by acting on the centrifugal force on pendulum but actually also by the frictional force in bearing Being limited to can scheduled firing order.Furthermore abrasion can be reduced.
The second sub-goal that the present invention is based on (especially illustrates the of the purposes of the centrifugal force pendulum device of the above-mentioned type Two sub-goals) it is realized since centrifugal force pendulum device is used for the power drive system of motor vehicles.
The following embodiment of this method is advantageous, and wherein centrifugal force pendulum device is used to pass with the power that motor vehicles are arranged in Double mass flywheel interaction in dynamic system.Here, centrifugal force pendulum device can combine (i.e. integrally) shape with double mass flywheel At.
If it is sharp to decay to attempt the main firing order for adapting centrifugal force pendulum device or its pendulum to internal combustion engine Hair vibration, then this is arranged in device and cannot be implemented or can only be difficult to realize on crankshaft or on rigid flywheel, Because engine inhomogeneities is too big, and causes angle of throw and quality that cannot be selected as enough due to small available space Greatly.
Under opposite, if in conjunction with double mass flywheel, effective attenuation is may be implemented in centrifugal force pendulum device.Here, centrifugation Pendulum device is connected to the primary side of double mass flywheel, that is, is connected to the element only by the initial vibration of a part.Then, in order to Compensate residual vibration, smaller pendulum and angle of throw be it is enough, thus reduce space requirement.
Here, the following embodiment of this method can be advantageous, wherein predetermined rotary speed ncarrier,fixIt is adapted to double The resonance frequency of mass flywheel.The resonance frequency of double mass flywheel can be located at for example 300 and 500 turns of crankshaft per minute it Between.
The following embodiment of this method is also advantageous, and wherein centrifugal force pendulum device is used for and power that motor vehicles are arranged in Fluid torque-converter interaction in transmission system.Fluid torque-converter is for example for automatic gear-box.
Detailed description of the invention
It will be based on an exemplary embodiment below and this hair is more fully described in a, 1b, 1c, 2a and 2b referring to Fig.1 It is bright.In the accompanying drawings:
Fig. 1 a schematically shows the centrifugal pendulum in nought state or center according to prior art with side view Device；
Fig. 1 b schematically shows centrifugal force pendulum device shown in Fig. 1 a in operating position with side view；
Fig. 1 c is schematically shown with side view shown in Fig. 1 a of position when not running in internal combustion engine Centrifugal force pendulum device；
Fig. 2 a schematically shows the first embodiment of centrifugal force pendulum device with side view, and wherein pendulum is fixed in neutrality Heart position；And
Fig. 2 b schematically shows centrifugal force pendulum device shown in Fig. 2 a with side view, wherein the pendulum that can move freely In operating position.
Specific embodiment
Fig. 1 a, 1b and 1c have been shown ... in a side view traditional centrifugal force pendulum device 1, and have been combined the prior art and carry out It discusses.
Fig. 2 a schematically shows the first embodiment of centrifugal force pendulum device 1 according to the present invention with side view, wherein putting Hammer 4a, 4b are fixed on neutral center.It is intended to the difference of discussion with centrifugal force pendulum device 1 according to prior art, is also joined thus According to Fig. 1 a, 1b and 1c and relevant description.Identical appended drawing reference has been used for identical component.
Each pendulum 4a, 4b tool has there are two arch opening 6a, 6b towards the convex surface of rotation axis 2, so that pendulum 4a, 4b can be fixed on external position.
The tool of centrifugal force pendulum device 1 of Fig. 2 a there are two passive stop device 7, two passive stop devices 7 from control and This utilizes centrifugal effect.
In this case, each crescent pendulum 4a, 4b are assigned stop device 7, wherein each stop device 7 includes Stop weight 7a, stopping element 7b and spring element 7c.
The radially outer of pendulum 4a, 4b is arranged in the spring element 7c of stop device 7, and pendulum therefore is arranged in and deviates from On that side of rotation axis 2.
Use be clamped at one end (being permanently connected in side) to pendulum bracket 3 leaf spring 7c' as spring element 7c, so as to be fixedly mounted on pendulum bracket 3 on the position spring element 7c.
In its another free end, leaf spring 7c' receives stop weight 7a, and stop weight 7a is used as simultaneously in the current situation Stopping element 7b.Medially and therefore in order to receive stopping element 7b, each pendulum 4a, 4b have a recess portion 7d, and recess portion 7d It is symmetrically disposed in pendulum 4a, 4b.
Fig. 2 a shows centrifugal force pendulum device 1, and wherein pendulum 4a, 4b is fixed on neutral center, wherein stopping element 7b Be joined in pendulum 4a, 4b and relative to pendulum bracket 3 by pendulum 4a, 4b be fixed on rotation axis 2 farthest between The outermost position separated.
As the predetermined rotary speed n for being more than pendulum bracket 3carrier,fixWhen, stop weight 7a (the i.e. stop of stop device 7 Element 7b) it is opposite with spring force in each case radially outwardly advance and discharge pendulum 4a, 4b, as shown in Figure 2 b.Only Want the rotation speed n of pendulum bracket 3carrierHigher than predetermined rotary speed ncarrier,fix, stopping element 7b cannot constrain with product The movement of pendulum 4a, 4b that the controllable mode in polar region vibrates especially no longer are fixed and are vibrated in a manner of energetically controllable Pendulum 4a, 4b.
Appended drawing reference
1 centrifugal force pendulum device
2 rotation axis
3 pendulum brackets
The first pendulum of 4a
The second pendulum of 4b
The roller bearing pin of 5a pendulum bracket
The roller bearing pin of 5b pendulum bracket
The arch of 6a pendulum is open, raceway
The arch of 6b pendulum is open, raceway
7 automatic control stop devices
7a stop weight
7b stopping element
7c spring element
7c' leaf spring
7d recess portion
ncarrierThe rotation speed of pendulum bracket
ncarrier,fixIt can be used for fixing the predetermined rotary speed of pendulum

Claims (16)

1. a kind of centrifugal force pendulum device (1), the centrifugal force pendulum device (1) has at least one can be around rotation axis (2) rotation Pendulum bracket (3), and have at least two to be set as moving on the pendulum bracket (3), be located opposite to each other and The pendulum (4a, 4b) being spaced apart with the rotation axis (2), the pendulum (4a, 4b) has arch opening (6a, 6b), described The roller bearing pin (5a, 5b) of pendulum bracket (3) is joined in the arch opening (6a, 6b), and thus the pendulum (4a, 4b) is transported Dynamic learn energetically guides, which is characterized in that each pendulum (4a, 4b) is assigned passive stop device (7), described passively to stop Dynamic device (7) and include stop weight (7a), stopping element (7b) and spring element (7c) from controlling using centrifugal effect,
Distribute to each stop device (7) of pendulum (4a, 4b) the spring element (7c) setting the pendulum (4a, It radially outer 4b) and is mounted in the pendulum bracket (3) in a manner of fixed on position, and
The stopping element (7b) is in the predetermined rotary speed n for being lower than the pendulum bracket (3)carrier,fixWhen be joined to it is described It is fixed on and the rotation axis in pendulum (4a, 4b) and relative to the pendulum bracket (3) by the pendulum (4a, 4b) (2) external position farthest spaced apart.
2. centrifugal force pendulum device (1) as described in claim 1, which is characterized in that the stop weight (7a) is used as stopping element (7b)。
3. centrifugal force pendulum device (1) as claimed in claim 1 or 2, which is characterized in that the pendulum (4a, 4b) has for connecing Receive the recess portion (7d) of the stopping element (7b).
4. centrifugal force pendulum device (1) as described in any one of the preceding claims, which is characterized in that the spring element (7c) is Leaf spring (7c'), the leaf spring (7c') are fixedly mounted on the pendulum bracket (3) on position in side.
5. centrifugal force pendulum device (1) as claimed in claim 4, which is characterized in that the leaf spring (7c') is permanently connected in side To the pendulum bracket (3).
6. centrifugal force pendulum device (1) as described in claim 4 or 5, which is characterized in that the leaf spring (7c') receives in free end The stop weight (7a).
7. centrifugal force pendulum device (1) as described in any one of the preceding claims, which is characterized in that each pendulum (4a, 4b) tool There are two arch openings (6a, 6b).
8. centrifugal force pendulum device (1) as described in any one of the preceding claims, which is characterized in that arch opening (6a, Convex surface 6b) is towards the rotation axis (2).
9. centrifugal force pendulum device (1) as described in any one of the preceding claims, which is characterized in that be lower than predetermined rotary speed ncarrier,fixWhen fixed each pendulum (4a, 4b) be fixed on symmetric position relative to the rotation axis (2).
10. centrifugal force pendulum device (1) as described in any one of the preceding claims, which is characterized in that be lower than the predetermined rotation Speed ncarrier,fixWhen the fixed pendulum (4a, 4b) will not be formed relative to the pendulum bracket (3) of rotation it is uneven.
11. centrifugal force pendulum device (1) as described in any one of the preceding claims, which is characterized in that use the stop weight The quality of (7a) and at least one characteristic variable of the spring element (7c) limit the predetermined rotary speed ncarrier,fix。
12. centrifugal force pendulum device (1) as described in any one of the preceding claims, which is characterized in that each pendulum (4a, 4b) tool There is crescent curved basic configuration.
13. a kind of purposes of centrifugal force pendulum device (1) as described in any one of the preceding claims, which is characterized in that it is described from Heart pendulum device (1) is used for the power drive system of motor vehicles.
14. purposes as claimed in claim 13, which is characterized in that the centrifugal force pendulum device (1) is used for and is arranged in motor vehicle The power drive system in double mass flywheel interaction.
15. purposes as claimed in claim 14, which is characterized in that the predetermined rotary speed ncarrier,fixSuitable for double matter Measure the resonance frequency of flywheel.
16. purposes as claimed in claim 13, which is characterized in that the centrifugal force pendulum device (1) is used for and is arranged in motor vehicle The power drive system in fluid torque-converter interaction.
CN201811207979.4A 2017-10-24 2018-10-17 The purposes of the centrifugal force pendulum device of centrifugal force pendulum device and the type Pending CN109695661A (en)

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DE102017218968.1A DE102017218968A1 (en) 2017-10-24 2017-10-24 Centrifugal pendulum device and use of such a centrifugal pendulum device

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* Cited by examiner, † Cited by third party
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DE102006028556B4 (en) 2005-07-11 2019-10-10 Schaeffler Technologies AG & Co. KG Torque transfer device
DE102011105029A1 (en) 2010-06-29 2011-12-29 Schaeffler Technologies Gmbh & Co. Kg Centrifugal pendulum device
DE102012025327B4 (en) * 2012-12-22 2017-03-30 Audi Ag Centrifugal pendulum device and drive train of a motor vehicle
DE102014219033A1 (en) * 2014-09-22 2016-03-24 Schaeffler Technologies AG & Co. KG torsional vibration dampers
DE102014224329A1 (en) 2014-11-28 2016-06-02 Schaeffler Technologies AG & Co. KG centrifugal pendulum

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