CN110185870A - A kind of vibration absorber and vehicle pipeline vibration insulating system - Google Patents
A kind of vibration absorber and vehicle pipeline vibration insulating system Download PDFInfo
- Publication number
- CN110185870A CN110185870A CN201910437546.6A CN201910437546A CN110185870A CN 110185870 A CN110185870 A CN 110185870A CN 201910437546 A CN201910437546 A CN 201910437546A CN 110185870 A CN110185870 A CN 110185870A
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- CN
- China
- Prior art keywords
- connecting rod
- vibration
- vibrating member
- vibration absorber
- piston
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Classifications
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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
- F16L55/02—Energy absorbers; Noise absorbers
Abstract
The present invention discloses a kind of vibration absorber and vehicle pipeline vibration insulating system, vibration absorber is used for connection fixture and vibrating member, including main body and connecting rod, main body includes the fixed part connecting with fixing piece and the interconnecting piece that connect with vibrating member, interconnecting piece is equipped with multiple, to connect multiple positions of vibrating member, at least one in multiple interconnecting pieces is connected with connecting rod, to connect vibrating member by connecting rod, wherein, damping mechanism is equipped between interconnecting piece and connecting rod, damping mechanism is to provide the damping force to connecting rod, the vibration of vibrating member can be by connecting rod along its transfers to damping mechanism, therefore pass through the cooperation of connecting rod and damping mechanism, the vibrational energy of vibrating member can gradually be damped mechanism absorption, to achieve the effect that vibration damping.Vehicle pipeline vibration insulating system of the invention includes above-mentioned vibration absorber, and vibration absorber is set to vehicle pipeline, and vehicle pipeline constitutes vibrating member, can promote the NVH performance of vehicle.
Description
Technical field
The invention belongs to antivibration areas, and in particular to a kind of vibration absorber and vehicle pipeline vibration insulating system.
Background technique
The conventional means that vibration absorber is vibration and noise reducing is installed on vibrating member, in existing vibration absorber, in vibrating member
Upper usually only to have a fixed point, when vibrating member is longer, vibrating member is still easy to produce biggish vibration, makes vibration absorber
Expected effect is not achieved.
For engine, the pipeline like members of engine there is very big thin wall cavity part, modal frequency generally compared with
It is low, it is easy to be activated and generate noise, directly affects the NVH performance of engine and vehicle, therefore reduce by vibration absorber
The vibration of the pipeline like members of engine is extremely necessary.
Summary of the invention
The main object of the present invention is to propose a kind of vibration absorber and vehicle pipeline vibration insulating system, optimizes the vibration of vibrating member
Energy absorption process promotes the NVH performance of engine.
The present invention proposes a kind of vibration absorber, is used for connection fixture and vibrating member, and the vibration absorber includes:
Main body, including the fixed part being connect with the fixing piece and the interconnecting piece being connect with the vibrating member, the company
Socket part be equipped with it is multiple, to connect multiple positions of the vibrating member；And
Connecting rod, at least one in the multiple interconnecting piece are connected with the connecting rod, to by described in connecting rod connection
Vibrating member；
Wherein, damping mechanism is equipped between the interconnecting piece and the connecting rod, the damping mechanism is to provide to described
The damping force of connecting rod.
Optionally, the damping mechanism includes:
Piston cylinder, inside are formed with plunger shaft, transmission medium are filled in the plunger shaft, the transmission medium has can
Compressibility and mobility；And
Piston is movably installed in the plunger shaft；
Wherein, the piston cylinder offers the mounting hole being connected to the plunger shaft, and one end of the connecting rod seals and can
It is movably arranged at the mounting hole, the connecting rod protrudes into the plunger shaft from the mounting hole and connects with the piston
It connects, to drive the piston movable in the plunger shaft.
Optionally, the plunger shaft is divided into the rod chamber and rodless cavity for accommodating the connecting rod by the piston；
Between all sides of the piston and the inner sidewall of the plunger shaft be equipped with gap, to be connected to the rod chamber and
The rodless cavity, the piston cylinder offer the oil outlet being connected to the rodless cavity.
Optionally, the damping mechanism further includes regulation unit, and the regulation unit includes:
Delivery pipe is connect with the oil outlet；
Pressure pump is connect with the delivery pipe, is situated between to convey the pressure transmission to the rod chamber by the delivery pipe
Matter；
Control valve is set at the oil outlet, to control the opening and closing of the oil outlet；And
Controller, is electrically connected with vibrating detector, the control valve and the pressure pump, and the controller passes through vibration
The vibration characteristics of vibrating member described in dynamic detector acquisition, to according to the corresponding control valve and described of controlling of the vibration characteristics
Pressure pump.
Optionally, the transmission medium is oil liquid.
Optionally, the side surface cover of the piston is equipped with multiple piston rings.
Optionally, the connecting rod has to be rotatablely installed in the turning end of the vibrating member.
Optionally, the turning end of the connecting rod is equipped with the installation part to be installed on the vibrating member, and the connecting rod turns
Moved end is rotatablely installed in the installation part.
The present invention also proposes a kind of vehicle pipeline vibration insulating system, including vehicle pipeline and the vibration absorber, the vibration damping
Device is set to the vehicle pipeline, and the vehicle pipeline constitutes the vibrating member.
Optionally, the vibration absorber includes the regulation unit, the controller and vehicle of the regulation unit
Electronic control unit is electrically connected, to the engine speed by electronic control unit acquisition vehicle, and according to starting
Machine revolving speed is corresponding to control the control valve and pressure pump.
In technical solution provided by the invention, vibrating member is connect by the fixed part of main body with fixing piece, improves itself
Rigidity, avoid its under lesser excitation just generate vibration, main body further includes multiple interconnecting pieces connecting with vibrating member, makes to shake
Moving part conducts the vibration of itself in a wider context, and in other embodiments, fixed part can be with multiple or one of company
Socket part is connected to form one, and further promotes the rigidity of vibrating member, and interconnecting piece is connected by damping mechanism and connecting rod and vibrating member
It connects, therefore vibrating member and main body are formed and be flexibly connected, allows the vibration of vibrating member by connecting rod along its transfers to damping
Mechanism is specifically formed with vibration-damping system in damping mechanism, vibration-damping system belongs to dissipative system, is that energy is continuous
The vibration processes of reduction, amplitude reduce at any time, therefore pass through the cooperation of connecting rod and damping mechanism, the vibrational energy of vibrating member
Amount can gradually be damped mechanism absorption, to achieve the effect that vibration damping, in the present embodiment, vibration absorber improves the whole of vibrating member
Body rigidity, damping mechanism improve the whole flexibility of vibrating member, optimize the vibration damping process of vibrating member.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the schematic perspective view of the vibration absorber of one embodiment of the invention；
Fig. 2 is the partial structure diagram in Fig. 1.
Drawing reference numeral explanation:
| Label | Title | Label | Title |
| 100 | Vibrating member | 320 | Connecting rod |
| 110 | Bracket | 321 | Bulb |
| 111 | Bolt | 330 | Control valve |
| 120 | Installation part | 340 | Rodless cavity |
| 121 | Ball cup | 341 | Oil outlet |
| 210 | Interconnecting piece | 350 | Rod chamber |
| 220 | Fixed part | 360 | Piston |
| 300 | Damping mechanism | 361 | Piston ring |
| 310 | Piston cylinder | 370 | Delivery pipe |
| 311 | Sealing ring | 380 | Pressure pump |
| 312 | Rear cover |
The object of the invention is realized, the embodiments will be further described with reference to the accompanying drawings for functional characteristics and advantage.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that if relating to directionality instruction (such as up, down, left, right, before and after ...) in the embodiment of the present invention,
Then directionality instruction be only used for explain under a certain particular pose (as shown in the picture) between each component relative positional relationship,
Motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.
In addition, being somebody's turn to do " first ", " second " etc. if relating to the description of " first ", " second " etc. in the embodiment of the present invention
Description be used for description purposes only, be not understood to indicate or imply its relative importance or implicitly indicate indicated skill
The quantity of art feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy
Sign.It in addition, the technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
It is enough realize based on, will be understood that the knot of this technical solution when conflicting or cannot achieve when occurs in the combination of technical solution
Conjunction is not present, also not the present invention claims protection scope within.
Fig. 1-Fig. 2 is please referred to, an a kind of embodiment of vibration absorber proposed by the present invention, vibration absorber is for being connected and fixed
Part and vibrating member 100, including main body and connecting rod 320, main body include the fixed part 220 and and vibrating member connecting with fixing piece
100 connection interconnecting pieces 210, interconnecting piece 210 be equipped with it is multiple, to connect multiple positions of vibrating member 100, multiple interconnecting pieces
At least one in 210 is connected with connecting rod 320, to connect vibrating member 100 by connecting rod 320, wherein interconnecting piece 210 and connecting rod
Damping mechanism 300 is equipped between 320, damping mechanism 300 is to provide the damping force to connecting rod 320.In the present embodiment, vibrating member
100 are connect by the fixed part 220 of main body with fixing piece, and the rigidity of itself is improved, it is avoided just to produce under lesser excitation
Raw vibration, main body further includes multiple interconnecting pieces 210 connecting with vibrating member 100, conducts vibrating member 100 in a wider context certainly
The vibration of body, in other embodiments, fixed part 220 can be connected to form one with multiple or one of interconnecting piece 210,
The rigidity of vibrating member 100 is further promoted, interconnecting piece 210 is connect by damping mechanism 300 and connecting rod 320 with vibrating member 100,
Therefore vibrating member 100 and main body, which are formed, is flexibly connected, and allows the vibration of vibrating member 100 by connecting rod 320 along its transfers
To damping mechanism 300, specifically, vibration-damping system is formed in damping mechanism 300, vibration-damping system belongs to dissipative system
System, is the vibration processes of the continuous reduction of energy, and amplitude reduces at any time, therefore passes through connecting rod 320 and damping mechanism 300
Cooperation, the vibrational energy of vibrating member 100 can gradually be damped the absorption of mechanism 300, thus achieve the effect that vibration damping, the present embodiment
In, vibration absorber improves the overall stiffness of vibrating member 100, and damping mechanism 300 improves the whole flexibility of vibrating member 100, excellent
The vibration damping process of vibrating member 100 is changed.
Further, damping mechanism 300 includes piston cylinder 310 and piston 360, and piston cylinder 310 is fixed at interconnecting piece
210, it is equipped with plunger shaft inside piston cylinder 310, transmission medium is filled in plunger shaft, transmission medium has compressibility and flowing
Property, piston 360 are movably installed in plunger shaft, and piston cylinder 310 offers the mounting hole being connected to plunger shaft, connecting rod 320
One end sealing and be movably installed at mounting hole, protrude at 320 self installation hole of connecting rod in plunger shaft and connect with piston 360
It connects, the activity in plunger shaft with band piston 360, and converts the vibration of vibrating member 100 to the sliding of piston 360, make to vibrate
The vibrational energy of part 100 is gradually converted into energy of thermal motion.
Plunger shaft is divided into the rod chamber 350 and rodless cavity 340 for accommodating connecting rod 320, the week of piston 360 by piston 360
Gap is equipped between side and the inner sidewall of plunger shaft, to be connected to rod chamber 350 and rodless cavity 340, piston cylinder 310 is offered
The oil outlet 341 being connected to rodless cavity 340, transmission medium can be by the slidings of piston 360 in rodless cavity 340 and rod chamber 350
Between flow back and forth, wherein the glide direction of the extending direction of plunger shaft and piston 360 makes along the axial direction setting of connecting rod 320
The vibration of vibrating member 100 is as much as possible along the transfers of connecting rod 320 to piston 360.
Transmission medium is filled in rodless cavity 340 and rod chamber 350, connecting rod 320 transmits the vibration of vibrating member 100
When to piston 360, piston 360 slidably reciprocates in plunger shaft, while repeatedly extruding the biography in rodless cavity 340 and rod chamber 350
Medium is pressed, since transmission medium has compressibility and mobility, connecting rod 320, piston 360 and transmission medium constitute damping vibration
Dynamic system, is made by the viscosity resistance between friction, piston 360 and the transmission medium between 310 inner wall of piston 360 and piston cylinder
The vibrational energy of vibrating member 100 is gradually converted into energy of thermal motion, in addition, piston 360 sliding when so that 340 He of rodless cavity
Transmission medium in rod chamber 350 is flowed back and forth by the gap between 310 inner wall of piston 360 and piston cylinder, strengthens damping
Effect.
Further, in this embodiment transmission medium is oil liquid, there is lubricating action, piston 360 covers on its sliding surface
Equipped with multiple piston rings 361, due to the gap between 310 inner wall of piston 360 and piston cylinder be it is very small, so piston ring
361 can reinforce mobility of the oil liquid in rodless cavity 340 and rod chamber 350 when piston 360 slidably reciprocates.
In the present embodiment, piston cylinder 310 is arranged with sealing ring 311 at mounting hole, strengthens the sealing of piston cylinder 310
Property, piston cylinder 310 is additionally provided with dismountable rear cover 312, is easy to install and maintain.
Further, damping mechanism 300 further include regulation unit, regulation unit include delivery pipe 370, pressure pump 380,
Control valve 330 and controller (attached drawing is not shown), delivery pipe 370 are connect with oil outlet 341, pressure pump 380 and delivery pipe 370
Connection, to convey transmission medium to rodless cavity 340 by delivery pipe 370, control valve 330 is set at oil outlet 341, to control
The opening and closing of oilhole 341 is produced, or also can control the opening and closing of delivery pipe 370, controller is (attached not shown with vibrating detector
Out), control valve 330 and pressure pump 380 are electrically connected, and controller is special by the vibration that vibrating detector obtains vibrating member 100
Property, the vibration of vibrating member 100 can be obtained according to the corresponding control control valve 330 of vibration characteristics and pressure pump 380, vibrating detector
Dynamic characteristic, such as amplitude, frequency etc., to according to the corresponding control control valve 330 of above-mentioned vibration characteristics and pressure pump 380.
Specifically, when the vibrational energy of vibrating member 100 changes, damping machine can accordingly be changed by regulating and controlling unit
The damping of structure 300, such as adjustment damped coefficient, adjustment process can be when vibrational energy becomes larger, and pressure pump 380 is to nothing
It is pumped into transmission medium in rod cavity 340, increases the pressure in plunger shaft, control valve 330, which may make, keeps closing in rodless cavity 340,
So that transmission medium is kept pressure, and then achievees the effect that more effectively to absorb vibration, when vibrational energy becomes smaller, control valve 330
The transmission medium in rodless cavity 340 can be made to flow back on a small quantity, the pressure in rodless cavity 340 and rod chamber 350 is made to reach balance, this
In embodiment, control valve 330 can be the check valve with reverse circulated function.
In other embodiments, pressure pump 380 can also be made to pass through defeated by the cooperation of pressure pump 380 and control valve 330
Send pipe 370 that transmission medium is inputted or be sucked out into rod chamber 350.
Referring to Fig. 1, connecting rod 320 has being rotatablely installed in the turning end of vibrating member 100, realize vibrating member 100 with
The flexible connection of connecting rod 320.
Correspondingly, the turning end of connecting rod 320 is equipped with the installation part 120 to be installed on vibrating member 100, and connecting rod 320 turns
Moved end rotational installation can avoid the surface texture for destroying or changing vibrating member 100 in installation part 120, and installation part 120 can be
One piece of thin plate, is fixed on the surface of vibrating member 100 by welding.
More specifically, the turning end of connecting rod 320 is equipped with bulb 321 in the present embodiment, the corresponding bulb 321 of installation part 120 is set
There are bulb 321 121, bulb 321 is rotatably installed on bulb 321 121.
In the present embodiment, the surface of vibrating member 100 is fixed with bracket 110, is removably installed in branch by bolt 111
Frame 110, bracket 110 are fixed on the surface of vibrating member 100 by welding, can avoid destroying or changing vibrating member 100
Surface texture.
The present invention also proposes a kind of vehicle pipeline vibration insulating system, which includes vehicle pipeline and above-mentioned
Vibration absorber, vibration absorber are set to vehicle pipeline, and wherein vehicle pipeline constitutes vibrating member.
Further, further include the regulation unit in vibration absorber, regulate and control the electronics of the controller and vehicle in unit
Control unit is electrically connected, to obtain the vibration characteristics of vehicle pipeline by electronic control unit, and according to vibration characteristics pair
Should control control valve 330 and pressure pump 380, in the present embodiment, vibration characteristics be the Oscillation Amplitude that can be used for characterizing vehicle pipeline,
The characteristic value of frequency or vibrational energy can usually be obtained by the electronic control unit of vehicle, in other embodiments, can also
So that controller is directly electrically connected with vibrating sensor etc., to obtain vibration characteristics.
Further, in this embodiment what controller obtained is that engine turns when vibration absorber is installed on engine pipelines
Speed, due to revolving speed difference, engine crankshaft rotation, piston 360 move back and forth and combustion chambers burn noise equal excitation is in engine
The vibrational energy that pipeline generates is also different, is effective promotion vehicle NVH according to the corresponding control vibration absorber of engine speed therefore
The mode of performance, specifically, control process can be according to control of engine speed valve 330 and pressure pump 380, when engine turns
When speed is no more than 3000rpm, controller adjusts the pressure of the transmission medium in damping mechanism 300 to 0.5-0.8Mpa, starts
When machine revolving speed is more than 3000rpm, controller adjusts the pressure of the transmission medium in damping mechanism 300 to 1.0-1.5Mpa.
The mode that controller obtains revolving speed is not construed as limiting, in other embodiments, can also be directly electric with speed probe
Property connection, to obtain revolving speed.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all at this
Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical areas in scope of patent protection of the invention.
Claims (10)
1. a kind of vibration absorber is used for connection fixture and vibrating member characterized by comprising
Main body, including the fixed part being connect with the fixing piece and the interconnecting piece being connect with the vibrating member, the interconnecting piece
Equipped with multiple, to connect multiple positions of the vibrating member；And
Connecting rod, at least one in the multiple interconnecting piece are connected with the connecting rod, connect the vibration to pass through the connecting rod
Part；
Wherein, damping mechanism is equipped between the interconnecting piece and the connecting rod, the damping mechanism is to provide to the connecting rod
Damping force.
2. vibration absorber as described in claim 1, which is characterized in that the damping mechanism includes:
Piston cylinder, inside are formed with plunger shaft, transmission medium are filled in the plunger shaft, and the transmission medium has compressible
Property and mobility；And
Piston is movably installed in the plunger shaft；
Wherein, the piston cylinder offers the mounting hole being connected to the plunger shaft, one end sealing of the connecting rod and movable
Ground is installed at the mounting hole, and the connecting rod is protruded into the plunger shaft from the mounting hole and connect with the piston,
To drive the piston movable in the plunger shaft.
3. vibration absorber as claimed in claim 2, which is characterized in that the plunger shaft has been divided into receiving by the piston
State the rod chamber and rodless cavity of connecting rod；
Gap is equipped between all sides of the piston and the inner sidewall of the plunger shaft, to be connected to the rod chamber and described
Rodless cavity, the piston cylinder offer the oil outlet being connected to the rodless cavity.
4. vibration absorber as claimed in claim 3, which is characterized in that the damping mechanism further includes regulation unit, the tune
Controlling unit includes:
Delivery pipe is connect with the oil outlet；
Pressure pump is connect with the delivery pipe, to convey the transmission medium to the rod chamber by the delivery pipe；
Control valve is set at the oil outlet, to control the opening and closing of the oil outlet；And
Controller is electrically connected with vibrating detector, the control valve and the pressure pump, and the controller passes through vibration inspection
The vibration characteristics that device obtains the vibrating member is surveyed, to control the control valve and the pressure according to the vibration characteristics is corresponding
Pump.
5. vibration absorber as claimed in claim 2, which is characterized in that the transmission medium is oil liquid.
6. vibration absorber as claimed in claim 2, which is characterized in that the side surface cover of the piston is equipped with multiple piston rings.
7. vibration absorber as described in claim 1, which is characterized in that the connecting rod has to be rotatablely installed in the vibration
The turning end of part.
8. vibration absorber as claimed in claim 7, which is characterized in that the turning end of the connecting rod is equipped with described to be installed on
The turning end of the installation part of vibrating member, the connecting rod is rotatablely installed in the installation part.
9. a kind of vehicle pipeline vibration insulating system, which is characterized in that including vehicle pipeline and as claim 1-8 is described in any item
Vibration absorber, the vibration absorber are set to the vehicle pipeline, and the vehicle pipeline constitutes the vibrating member.
10. vehicle pipeline vibration insulating system as claimed in claim 9, which is characterized in that the vibration absorber includes that right such as is wanted
Regulation unit described in asking 4, the controller of the regulation unit and the electronic control unit of vehicle are electrically connected, to logical
The engine speed that the electronic control unit obtains vehicle is crossed, and controls the control valve and pressure according to engine speed is corresponding
Power pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910437546.6A CN110185870B (en) | 2019-05-23 | 2019-05-23 | Vibration damper and vehicle pipeline vibration damping system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910437546.6A CN110185870B (en) | 2019-05-23 | 2019-05-23 | Vibration damper and vehicle pipeline vibration damping system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110185870A true CN110185870A (en) | 2019-08-30 |
| CN110185870B CN110185870B (en) | 2020-11-03 |
Family
ID=67717698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910437546.6A Active CN110185870B (en) | 2019-05-23 | 2019-05-23 | Vibration damper and vehicle pipeline vibration damping system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110185870B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112461359A (en) * | 2020-12-17 | 2021-03-09 | 安徽江淮汽车集团股份有限公司 | Mounting structure and noise testing device |
| CN113864564A (en) * | 2021-09-22 | 2021-12-31 | 浙江零跑科技股份有限公司 | Multiple damping intercooling pipeline |
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| CN113864564A (en) * | 2021-09-22 | 2021-12-31 | 浙江零跑科技股份有限公司 | Multiple damping intercooling pipeline |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110185870B (en) | 2020-11-03 |
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