CN101493172B - Vibration damper - Google Patents
Vibration damper Download PDFInfo
- Publication number
- CN101493172B CN101493172B CN2009100096094A CN200910009609A CN101493172B CN 101493172 B CN101493172 B CN 101493172B CN 2009100096094 A CN2009100096094 A CN 2009100096094A CN 200910009609 A CN200910009609 A CN 200910009609A CN 101493172 B CN101493172 B CN 101493172B
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- Prior art keywords
- chamber
- damper
- vibration damper
- structure body
- passage
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- 239000007788 liquid Substances 0.000 claims abstract description 21
- 238000013016 damping Methods 0.000 claims abstract description 15
- 210000003850 cellular structure Anatomy 0.000 claims description 5
- 230000001413 cellular effect Effects 0.000 description 11
- 239000000463 material Substances 0.000 description 11
- 238000003825 pressing Methods 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000003044 adaptive effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000000862 absorption spectrum Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/008—Reduction of noise or vibration
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D25/00—Fluid-actuated clutches
- F16D25/08—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/04—Devices damping pulsations or vibrations in fluids
- F16L55/045—Devices damping pulsations or vibrations in fluids specially adapted to prevent or minimise the effects of water hammer
- F16L55/05—Buffers therefor
- F16L55/052—Pneumatic reservoirs
- F16L55/053—Pneumatic reservoirs the gas in the reservoir being separated from the fluid in the pipe
- F16L55/054—Pneumatic reservoirs the gas in the reservoir being separated from the fluid in the pipe the reservoir being placed in or around the pipe from which it is separated by a sleeve-shaped membrane
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
- F16D2048/0215—Control by fluid pressure for damping of pulsations within the fluid system
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The present invention relates to a vibration damper for hydraulic vibration of liquids in a damping pressure pipeline, especially a pressure line between an active cylinder and a driven cylinder of a clutch operating device. The vibration damper has a compact structural form and high operational reliability by means of including a cavity, two joints for connecting the pressure pipeline and a damper structural body arranged in the cavity, wherein the joints are arranged in the cavity, thereby the cavity is capable of being connected in series with the pressure pipeline, the damper structural body has a main channel between the two joints in a longitudinal direction of the cavity, and at least a discharge channel is branched from the main channel.
Description
Technical field
The present invention relates to a kind of vibration damper, be used for the damping pressure pipeline, the especially active cylinder of clutch operating device and the hydraulic vibration of the liquid in the pressure piping between the slave cylinder.In addition, the present invention relates to a kind of clutch operating device, this clutch operating device has corresponding vibration damper.
Background technique
By prior art known be used for the vibration damper of the pressure piping of clutch actuation system.A kind of known vibration damper comprises a tank on the branch road that is connected to pressure piping, and this tank is the vibration of damping in definite frequency range of helmholtz resonator resonant frequency as helmholtz resonator.The size that resonant frequency can be by selecting tank, the size of the branch road especially length of branch road and the mechanical property of diameter and tank are regulated.
In known vibration damper, produce variety of issue, for example on tank, may produce leakage.Therefore, at the tank that is connected on the pressure piping that is used for damped vibration an elastomer diaphragm is set, but this elastomer diaphragm blow-by.If in pressure piping, produce the hydraulic vibration of different frequency, then can produce another shortcoming, because traditional vibration damper is not to arrange for dampings on the wide frequency ranges or a plurality of frequencies usually.Another shortcoming is that damper is connected on the pressure piping by releasing pipeline, produces thus the locational requirement that needs consideration.
Summary of the invention
Therefore, task of the present invention is, improve above-mentioned vibration damper or clutch operating device, wherein, especially will provide a kind of vibration damper for the hydraulic vibration in the liquid of damping pressure pipeline, this vibration damper has simple structural type and has high working stability.In addition, task of the present invention is, provides a kind of vibration damper, but by the wider frequency spectrum of this vibration damper damping.
This problem solves by a kind of vibration damper, this vibration damper is used for the damping pressure pipeline, especially the hydraulic vibration of the active cylinder of clutch operating device and the liquid in the pressure piping between the slave cylinder, wherein, this vibration damper comprises a chamber, two joint and damper structure bodies that are arranged on the chamber that are used for the Bonding pressure pipeline, wherein, these joints are arranged on the chamber, thus, the chamber can be connected in series with pressure piping, this damper structure body branches out at least one from this main passage and releases passage having a main passage on the longitudinal direction in chamber between these two joints.At this, be arranged in the chamber and mean: the damper structure body is received in inside, chamber fully.Preferred damper structure body is constructed like this: so that this damper structure body is filled with in the chamber in the working state of liquid fully by Breakup of Liquid Ring around washing away.This is normal working state, for example comprises that the system that is used for operated clutch of pressure piping is in the state of the work of being ready to this moment.The main passage preferably is in the inside of damper structure body, and in other words, this main passage is not arranged on the edge of damper structure body.Releasing passage preferably branches out from the main passage diametrically or basically diametrically.Releasing passage can be the blind passage that releases, and in other words, releasing passage is not to be connected with other volume; Perhaps releasing passage can be connected with other volume.But in the case, this volume also is arranged on inside, chamber.The invention provides the simple especially advantage of structure.Another advantage is that locational requirement is lower, because vibration damper can in series be installed in the pressure piping.In addition, vibration damper can be installed in the pressure piping in any one direction, makes thus assembling easily.
Preferred damper structure body has such size and is arranged on like this in the chamber: so that between the wall in chamber and damper structure body fringe region of formation.This fringe region forms a volume, has liquid in normal working state in this volume.Preferred this release passage or in a plurality of situations of releasing passage these to release passage be the main passage with fringe region between unique the connection.Simple helmholtz resonator is provided in this way.
In favourable form of implementation, the chamber comprises an elastic member.Main relevant with the elastic characteristic in chamber with the resonant frequency of the helmholtz resonator of chamber formation by having the damper structure body that releases passage.Can change resonant frequency or additional resonant frequency can be provided by one or more additional elastic members are set in the wall in inside, chamber or chamber, in order to widen the frequency range of damping.Can realize that by adaptive elastic characteristic and size of especially releasing passage the given frequency of the vibration in this resonant frequency or these resonant frequencies and the pressure piping is suitable.Resonant frequency is advantageously by the rigidity in the adaptive volume that releases the diameter of passage, the length of releasing passage, liquid, chamber or by selecting elastic member suitable with the damped frequency of expectation.
Advantageously, liquid can flow at the longitudinal direction in chamber in the edge region.This provides advantage: fringe region can be connected with one of joint.Thus, one of at least being in direct liquid and being connected in preferred fringe region and these two joints.Form a through flow cross section at the edge in chamber in this way, this through flow cross section can be used for liquid being transported to the damper structure body or discharging from this damper structure body.
Release passage and advantageously generate being connected between main passage and the fringe region.Can form a helmholtz resonator by releasing passage and fringe region volume in this way, wherein, advantage is: whole device is received in inside, chamber, guarantees thus high functional reliability.In addition, obtain in this way the compact structure form.
Chamber or damper structure body are advantageously columned.Both columned such as fruit caving and damper structure body, then obtain special advantage, because obtain in this way simple and compact structure.
Being in inner main passage, damper structure body and chamber preferably arranges with one heart.This also is applicable to fringe region, and this fringe region preferably also arranges with described feature with one heart.This provides structural type compact especially and the advantage of resistivity arranged.
Preferred main passage is being configured to run through on the longitudinal direction in chamber between these two joints.In the situation of columned chamber and columned damper structure body, obtain in this way having the concentric structure of the main passage that is in the center, wherein, these of damper structure body release passage, and maybe this releases passage and radially arranges around the main passage.
Preferred main passage is intercepted in a longitudinal direction by a baffling device.In other words, joint does not advantageously directly connect by the main passage.Realize in this way: liquid and pressure wave vibration can only or basically arrive another joint by releasing passage from a joint.For this reason, the main passage is connected with fringe region by releasing passage.Fringe region now can or directly on an end in chamber with or not be not in direct-connected joint the main passage and be connected.Fringe region and can provide in an end in chamber direct for example connection the between the joint, its mode are that the damper structure body arranges and structure like this: so that this damper structure body does not meet the boundary with the end wall that this joint wherein is set.Another possibility is: the liquid connection from fringe region to another joint also extends through releases passage.This for example can realize like this: use the damper structure body with the main passage that is in the center, wherein, the damper structure body has a plurality of passages that release, and these release passage and branch out from the main passage diametrically and be connected with fringe region.By for example center between two joints or basically the baffling device of the main passage at center realize: liquid only connects can be by releasing passage and through fringe region and return again in the another part that enters the main passage by releasing passage.Realize in this way especially effectively vibration damping, this vibration damping is because by the different cross section in the path of vibration damper and highway section situation but wide band.
Preferably constructing in the radial direction a plurality of passages that release from the main passage.The advantage that this provides the pressure wave that releases in the passage to receive with being diffused, thus, the pressure wave with wide spectrum can be absorbed.Preferably all or basically all releasing passage is connected with fringe region.
Advantageously with honeycomb go out a plurality of from the main passage at the extended passage that releases in the radial direction.Cellular structure is made of the hexagonal passage that releases, and these hexagonal passages that release directly recline each other mutually, thus, limits a wall that releases the border of passage and also limits the border that another releases passage.These are only different on the edge of damper structure body, and on this edge, a wall that releases passage also is border rather than another border of releasing passage of damper structure body simultaneously.The baffling device of main passage can be constructed like this: so that this baffling device makes whole damper structure body seal in an end of damper structure body as dish, thus, the main passage is also at Central Closed.Dish this aspect diameter or the cross section less than the inner room in chamber, in order to be provided to connection in the fringe region at the edge.Dish is therefore preferred not to be stopped with the inwall in chamber.In addition, dish is spaced apart with the end wall in chamber, can realize that thus the joint from be arranged on end wall connects to the liquid of fringe region.Cellular structure has in the concentric situation of the structure in damper structure body and chamber and is the funnelform hexagonal passage that releases around the main passage.Funnel shaped is take the cylindrical shape of damper structure body as condition.When leaving the quantity of releasing passage of main passage towards the fringe region direction and keep identical, cross section keeps in the identical situation to increasing aspect external its size, in order to form cylindrical shape at wall thickness.Use cellular structure can realize simple especially manufacturing and the special stable structure of damper structure body.
Another independent theme of the present invention is clutch operating device, and this clutch operating device has the vibration damper in the pressure piping of being arranged on that an active cylinder, slave cylinder, make one of pressure piping that active cylinder is connected with slave cylinder and an above-mentioned preferred implementing form.The vibration that this clutch operating device provides clutch operating device inside is by effectively and the advantage of reliable operation ground damping.
Advantageously, the damper structure body is made of cellular structure basically.
Description of drawings
The below describes embodiments of the invention in detail by means of accompanying drawing.Accompanying drawing represents:
Fig. 1 has the explanatory view of the clutch operating device of the hydraulic work mode consistent with viewpoint of the present invention;
Fig. 2 is according to the explanatory view of the present invention's first form of implementation of vibration damper of the present invention;
Another explanatory view of the damper structure body of the vibration damper of Fig. 3 Fig. 1;
Another explanatory view according to the damper structure body of form of implementation of the present invention of Fig. 4;
The mechanical isoboles of the simplification of vibration damper shown in Fig. 5 Fig. 2;
Another schematic three-dimensional views of dissecing according to vibration damper of the present invention of Fig. 6;
Another of the damper structure body of the vibration damper of Fig. 7 Fig. 6 simplified view; And
Fig. 8 is according to another key diagram that dissects according to form of implementation of the present invention of vibration damper of the present invention.
Embodiment
An example according to the clutch operating device 1 of hydraulic pressure of the present invention that is used for Motor Vehicle has been shown among Fig. 1.Clutch operating device 1 comprises an active cylinder 2, and the pressure piping 3 of this active cylinder by a hydraulic pressure is in fluid with slave cylinder and is connected.May by the pressure vibration of engine luggine generation, in pressure piping, in series be provided with one according to vibration damper 4 of the present invention in order for example to absorb.Come vibration damper 4 is described in detail in conjunction with Fig. 2 to Fig. 8.
Slave cylinder is configured to central annular slave cylinder (CSC).In the slave cylinder housing 5 of ring-type, supporting the slave cylinder piston 6 of a ring-type.The slave cylinder housing 5 of ring-type and 6 one of the sealing of the slave cylinder piston of ring-type also are the pressure chambers 7 of ring-type.Slave cylinder 4 is supporting and is operating a belleville spring 9 by a release bearing 8.Belleville spring 9 is used for operated clutch 10.
This clutch 10 also comprises belleville spring 9, pressing plate 11, back-pressure plate 12 and clutch disk 13 except other part.Belleville spring 9 is pre-tensioner like this: so that this belleville spring is clamped between pressing plate 11 and the back-pressure plate 12 on the pre-tensioner direction pressing plate 11 being pressed and make in the case without the clutch disk 13 that is connected with transmission input shaft with relatively rotating towards back-pressure plate 12.For this reason, pressing plate 11 and back-pressure plate 12 without being connected with the bent axle at this unshowned internal-combustion engine as the Motor Vehicle driver element with relatively rotating.Therefore, when slave cylinder 4 was loaded pressure, belleville spring 9 moved like this: so that this belleville spring makes pressing plate 11 reduce and therefore make on the one hand clutch disk 13 with sealed connection of friction between pressing plate 11 and the back-pressure plate 12 unclamps on the other hand towards the impacting force of pressing plate 12 directions against its pre-tensioner direction.
The active cylinder 2 of Fig. 1 comprises an active cylinder piston 14, and this active cylinder piston operates by depression bar 16 by means of clutch pedal 15.The active cylinder housing 17 of active cylinder 2 and the active cylinder piston 14 that is arranged on movingly in this active cylinder housing are sealed a pressure chamber 18.In system during without pressure, servo-actuated container 19 and pressure chamber's 18 hydraulic connectings.Except vibration damper 4, the hydrovalve 20 that is arranged in the pressure piping 3 is used for making the quick return motion of clutch pedal 15 to be restricted aspect the effect of the clutch operating device 1 of hydraulic pressure at it.When operated clutch 10, avoid thus high engaging speed.
In the following explanation to Fig. 2 to Fig. 8, identical reference number is used for identical or similar part.Especially reference number 4 always is used for according to different vibration damper of the present invention, and wherein, pointed is, can use described whole forms of implementation below the vibration damper 4 in the clutch operating device 1 of Fig. 1.
Schematically show the view that dissects of a vibration damper 4 among Fig. 2.Vibration damper 4 comprises two joints 21 and 22, i.e. the joint 22 in the joint 21 of a slave end and a master end.Slave end means at this: the joint 21 of slave end is connected with slave cylinder by pressure piping.The master end has corresponding meaning.Joint 21 and 22 be arranged for can be on these joints two parts of Bonding pressure pipeline 3, i.e. a slave end part and a master end part.
In addition, vibration damper 4 comprises a chamber 23 and a damper structure body 24.Chamber 23 and damper structure body 24 are columned and arrange with one heart that thus, the damper structure body is arranged on the inside in chamber 23.Damper structure body 24 is formed centrally a passage 25 therein, and this passage also arranges with one heart with respect to chamber 23 and arranges alignedly with joint 21 and 22. Joint 21 and 22 be arranged on two of chamber 23 distolateral on.Damper structure body 24 has the outer diameter less than the inner diameter in chamber 23 between two of chamber 23 inwalls opposite each other, thus, forms a fringe region 26 between the inwall in damper structure body 24 and chamber 23.On two end faces, damper structure body 25 stops with the distolateral inwall in chamber 23 with flushing, thus, does not form liquid for hydraulic fluid between edge region 26 and joint 21 and 22 and be connected on chamber 23 distolateral.
25 branch out a sealing channel 27 from the main passage, and the sealing passage makes main passage 25 be connected with fringe region 26.Provide a helmholtz resonator by the passage 27 that releases that is connected with fringe region, this helmholtz resonator absorb be present in the chamber 23 and joint 21 and 22 in hydraulic fluid in pressure vibration.The advantage of the vibration damper 4 of Fig. 2 is that this vibration damper in series is installed in the pressure piping in the locational requirement lowland.In addition, vibration damper 4 provides advantage: this vibration damper has high functional reliability.
Do not schematically show the 3-D view of the damper structure body 24 of Fig. 2 with dissecing again among Fig. 3.No longer elaborate, reference pin is to the explanation of Fig. 2, wherein, in Fig. 3 with Fig. 2 in the identical part of identical reference number mark.
An a little damper structure body 24 of modification has been shown among Fig. 4, and this damper structure body is different from the damper structure body of Fig. 3 and have a plurality of layers of passage 27.Identical reference number is identical or similar part among mark and Fig. 2 and Fig. 3 also.The passage 27 that releases of the damper structure body 24 of Fig. 4 arranges around this main passage with respect to main passage 25 with uniform pattern radial orientedly.By the vibration in a plurality of hydraulic fluids that release in the passage 27 realization broad frequency band ground damping pressure pipings 3 is set.The damper structure body 24 of Fig. 4 this be arranged for Fig. 2 according to vibration damper of the present invention in substitute the damper structure body shown in the there.
Fig. 5 shows the mechanical simplicity model of vibration damper shown in Fig. 2 24, and identical reference number is identical part among mark and Fig. 2 also.Additionally show a quality 30 and a spring 31.The liquid in the passage 27 is released in quality 30 representatives, and spring 31 represents the rigidity of container, and the effect of vibration of quality 30 is on this container.In the situation of as shown in Figure 4 damper structure body, in a mechanical equivalent diagram, a plurality of quality 30 and a plurality of spring 31 can be shown.Clearly at this be, relevant with the diameter that releases passage 27 and length by releasing the absorption frequency that passage 27 realizes.In this way, have for example the releasing passage 27 (referring to Fig. 4) and can realize of different-diameter of different size by a plurality of: provide the helmholtz resonator with different resonant frequencies.Wide band absorption spectrum is provided in this way, perhaps can realizes absorbing in a plurality of diverse frequencies.
Schematically show the 3-D view that dissects according to another form of implementation of vibration damper 4 of the present invention among Fig. 6, wherein, identical reference number is identical or similar part among mark and Fig. 1 to Fig. 5 also.Especially the vibration damper 4 of Fig. 6 also has a chamber 23 and two joints 21 and 22 as the vibration damper among Fig. 2.Being provided with one heart one in columned chamber 23 also is columned damper structure body 40.But different from the damper structure body of Fig. 2, the damper structure body of Fig. 6 40 is made of cellular material.At this, cellular material surrounds a main passage 25 that is in the center as damper structure body 40, and also 23 longitudinal direction arranges and is orientated alignedly with the joint 21 and 22 that is arranged on the center in the chamber in this main passage.Cellular material arranges like this, releases passage 41 so that this cellular material forms some, and these release passage and 25 extend to fringe region 26 from the main passage.Fringe region 26 is between the inwall that is configured in damper structure body 40 and chamber 23 among the embodiment of Fig. 2.Fringe region 26 does not have direct connection to joint 21 with being connected yet.Fringe region 26 and forming unique the connection by the passage 41 that releases in the cellular material between joint 21 and 22.
Among Fig. 7 individually and do not show the damper structure body 40 of Fig. 6 with dissecing.The reference number of reference number and Fig. 6 is corresponding, thus no longer repeat specification.Realize wide band damping by the damper structure body 40 made from cellular material.Cellular material can be made of stable aluminium and steel, wherein, but also cheaper plastics of user cost.
The 3-D view that dissects according to another form of implementation of vibration damper 4 of the present invention has been shown among Fig. 8, and wherein, identical reference number is identical or similar part among mark and Fig. 6 also.But the vibration damper 4 of Fig. 8 is compared the damper structure body 40 made from cellular material with modification with form of implementation shown in Fig. 6.Damper structure body 40 is shorter than chamber 23, thus, this damper structure body not from the chamber 23 distolateral another of chamber 23 of being stretched over distolateral.On the side of the joint 21 of slave cylinder side, damper structure body 40 does not reach that this is distolateral.Forming direct liquid thus between the joint 21 of slave cylinder side and fringe region 26 is connected.This connects by 43 formation of free chamber.This free chamber 43 directly is not connected with main passage 25.
Be provided with a baffling device 44 in the embodiment of Fig. 8, this baffling device makes damper structure body 40 towards joint 21 sealings of slave cylinder side.The diameter of baffling device 44 is corresponding to the diameter of damper structure body 40, and in other words, the diameter of baffling device 44 is less than the inner diameter in chamber 23, thus, keeps forming between concentric fringe region 26 and free chamber 43 and is connected.Baffling device 44 extend in the main passage 25 with the hitching post 45 of a weak point.This guarantees the concentric position of baffling device 44 on the end of damper structure body 40.Realize in this way: be used between the joint 21 of slave end and the joint 22 in master end only being connected of liquid releasing passage 41 formation by cellular material.Also realize in this way wide band damping.In conjunction with concentric structural type---wherein, chamber 23, fringe region 26, damper structure body 24, main passage 25 and baffling device 44 arrange with one heart, also realize stable setting type.In addition, this setting type is saved the position.
The reference number inventory
1 clutch operating device
2 active cylinder
3 pressure pipings
4 vibration dampers
5 slave cylinder housings
6 slave cylinder pistons
7 pressure chambers
8 release bearings
9 belleville springs
10 clutches
11 pressing plates
12 back-pressure plates
13 clutch disks
14 active cylinder piston
15 clutch pedals
16 depression bars
17 active cylinder housings
18 pressure chambers
19 servo-actuated containers
20 hydrovalves
The joint of 21 slave cylinder sides
The joint of 22 active cylinder sides
23 chambeies
24 damper structure bodies
25 main passages
26 fringe regions
27 release passage
40 damper structure bodies (having cellular material)
41 passages (in cellular material)
Free chambers 43
44 baffling devices
45 hitching posts
Claims (14)
1. vibration damper (4), the hydraulic vibration that is used for the liquid of damping pressure pipeline (3), wherein, this vibration damper (4) comprises a chamber, two joints (21 that are used for connecting this pressure piping (3), 22) and a damper structure body (24 that is arranged in this chamber (23), 40), wherein, these joints (21,22) be arranged on this chamber (23), thus, this chamber (23) can be connected in series with this pressure piping (3), and this damper structure body has a main passage (25) on the longitudinal direction of this chamber (23) between these two joints (21,22), branch out at least one from this main passage and release passage (27,41).
2. according to claim 1 vibration damper (4), it is characterized in that: this damper structure body (24,40) has such size and being arranged on like this in this chamber (23): so that between the wall of this chamber (23) and this damper structure body (24,40), form a fringe region (26).
3. according to claim 2 vibration damper (4), it is characterized in that: liquid can flow at the longitudinal direction of this chamber (23) in this fringe region (26).
4. according to claim 2 vibration damper (4) is characterized in that: the described passage (27,41) that releases forms being connected between this main passage (25) and this fringe region (26).
5. according to claim 1 and 2 vibration damper (4), it is characterized in that: this chamber (23) comprise an elastic member.
6. according to claim 1 and 2 vibration damper (4), it is characterized in that: this chamber (23) and/or this damper structure body (24,40) are columned.
7. according to claim 1 and 2 vibration damper (4) is characterized in that: be in inner main passage (25), this damper structure body (24,40) and this chamber (23) and arrange with one heart.
8. according to claim 1 and 2 vibration damper (4) is characterized in that: this main passage (25) are being configured to run through on the longitudinal direction of this chamber (23) between these two joints (21,22).
9. according to claim 1 and 2 vibration damper (4), it is characterized in that: this main passage (25) are intercepted in a longitudinal direction by a baffling device (44,45).
10. according to claim 1 and 2 vibration damper (4) is characterized in that: constructing in the radial direction a plurality of passages (27,41) that release from this main passage (25).
11. vibration damper according to claim 1 and 2 (4) is characterized in that: going out a plurality of passages (27,41) that release with honeycomb in the radial direction from this main passage (25).
12. vibration damper according to claim 1 and 2 (4) is characterized in that: this damper structure body (40) is made of cellular structure basically.
13. vibration damper according to claim 1 (4) is characterized in that: described pressure piping (3) is the active cylinder of clutch operating device (1) and the pressure piping between the slave cylinder.
14. clutch operating device (1), have an active cylinder, slave cylinder, one make pressure piping (3) that this active cylinder is connected with this slave cylinder and one be arranged in this pressure piping (3) according to claim 1 to one of 13 vibration damper (4).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008005914 | 2008-01-24 | ||
| DE102008005914.5 | 2008-01-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101493172A CN101493172A (en) | 2009-07-29 |
| CN101493172B true CN101493172B (en) | 2013-03-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100096094A Expired - Fee Related CN101493172B (en) | 2008-01-24 | 2009-01-23 | Vibration damper |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101493172B (en) |
| DE (1) | DE102009004706B4 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009033837B4 (en) | 2008-07-31 | 2021-08-12 | Schaeffler Technologies AG & Co. KG | Hydraulic system with damping device |
| EP2369197B1 (en) * | 2010-03-12 | 2012-09-19 | Iveco S.p.A. | Double actuation system for truck clutch |
| DE112012000756A5 (en) * | 2011-02-10 | 2013-11-28 | Schaeffler Technologies AG & Co. KG | attenuator |
| EP2686570B1 (en) * | 2011-03-15 | 2014-12-17 | Schaeffler Technologies GmbH & Co. KG | Damping device |
| DE112012001259A5 (en) * | 2011-03-15 | 2013-12-19 | Schaeffler Technologies AG & Co. KG | attenuator |
| DE102011076646A1 (en) * | 2011-05-27 | 2012-11-29 | Mahle International Gmbh | snubbers |
| DE102015203231A1 (en) | 2015-02-24 | 2016-08-25 | Schaeffler Technologies AG & Co. KG | vibration absorber |
| CN112901889B (en) * | 2021-01-27 | 2022-03-22 | 中联重科股份有限公司 | Pipeline support vibration damping device and method and engineering machinery |
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| CN85200121U (en) * | 1985-04-01 | 1985-09-10 | 西安交通大学 | Fluid noise filter |
| FR2640351A1 (en) * | 1988-12-13 | 1990-06-15 | Total Petroles | RECTIFIER OF THE FLOW OF A FLUID IN A PIPELINE |
| CN2089112U (en) * | 1991-02-07 | 1991-11-20 | 宋振华 | Noise and wave absorbers for hydraulic system |
| EP0304776B1 (en) * | 1987-08-26 | 1992-05-20 | W.R. Grace & Co.-Conn. | Reinforced metallic honeycomb structure |
| CN1653272A (en) * | 2002-05-14 | 2005-08-10 | 卢克摩擦片和离合器两合公司 | Hydraulisches system |
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|---|---|---|---|---|
| DE10129910C1 (en) * | 2001-06-21 | 2002-11-14 | Zf Sachs Ag | Damping device, for pressure oscillation in automobile hydraulic system, has housing containing apertured positioning element between two membranes clamped by housing cover |
| DE102004052359A1 (en) * | 2004-10-28 | 2006-05-04 | Daimlerchrysler Ag | Pulsation damper for reduction of oscillations in fluid flow has line section, which is partly enclosed by diaphragm, housing and openings whereby housing is multipart and line section is clamped between housing |
-
2009
- 2009-01-15 DE DE102009004706.9A patent/DE102009004706B4/en not_active Expired - Fee Related
- 2009-01-23 CN CN2009100096094A patent/CN101493172B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85200121U (en) * | 1985-04-01 | 1985-09-10 | 西安交通大学 | Fluid noise filter |
| EP0304776B1 (en) * | 1987-08-26 | 1992-05-20 | W.R. Grace & Co.-Conn. | Reinforced metallic honeycomb structure |
| FR2640351A1 (en) * | 1988-12-13 | 1990-06-15 | Total Petroles | RECTIFIER OF THE FLOW OF A FLUID IN A PIPELINE |
| CN2089112U (en) * | 1991-02-07 | 1991-11-20 | 宋振华 | Noise and wave absorbers for hydraulic system |
| CN1653272A (en) * | 2002-05-14 | 2005-08-10 | 卢克摩擦片和离合器两合公司 | Hydraulisches system |
| CN1752360A (en) * | 2004-09-20 | 2006-03-29 | 株式会社东全 | Small water attack preventor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101493172A (en) | 2009-07-29 |
| DE102009004706B4 (en) | 2020-12-17 |
| DE102009004706A1 (en) | 2009-07-30 |
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