CN106704460B - Vibration absorber and engineering truck - Google Patents
Vibration absorber and engineering truck Download PDFInfo
- Publication number
- CN106704460B CN106704460B CN201710088160.XA CN201710088160A CN106704460B CN 106704460 B CN106704460 B CN 106704460B CN 201710088160 A CN201710088160 A CN 201710088160A CN 106704460 B CN106704460 B CN 106704460B
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- Prior art keywords
- mandrel
- vibration
- vibration absorber
- cavity
- shell
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/005—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a wound spring and a damper, e.g. a friction damper
- F16F13/007—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a wound spring and a damper, e.g. a friction damper the damper being a fluid damper
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
- F16F13/06—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper
- F16F13/08—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper
- F16F13/085—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper characterised by features of plastics springs; Attachment arrangements
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
- F16F13/06—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper
- F16F13/20—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper characterised by comprising also a pneumatic spring
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Combined Devices Of Dampers And Springs (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The present invention relates to a kind of vibration absorber and engineering trucks, wherein, vibration absorber includes shell (6) and rubber spring, rubber spring includes the rubber bodies (2) that mandrel (1) and fitting are enclosed in mandrel (1) periphery, rubber spring is at least partially disposed in shell (6), and the first cavity (8) are formed between bottom and shell (6) inner wall, the outer end of mandrel (1) with vibration isolation object for connecting, shell (6) with fixing base for connecting, mandrel (1) inner end is connected with the first elastic construction being located in the first cavity (8), and/or the second elastic construction is equipped in rubber bodies (2).Vibration absorber of the invention organically combines other elastic constructions with rubber spring in structure, on the basis of carrying out vibration damping using rubber spring, it increases other elastic constructions and further absorbs vibration, can be improved vibration isolation rate, thus the vibration that more efficiently isolation vibration isolation object generates.
Description
Technical field
The present invention relates to engineering truck technical field more particularly to a kind of vibration absorbers and engineering truck.
Background technique
Engineering truck such as excavator, road roller, loading machine, land leveller etc. is widely used to building, road, mine at present
The construction sites such as mountain, harbour, since the pavement behavior and working environment of work-yard are more severe, thus engineering truck is working
During, it is often accompanied by huge temporary impact, generates low-frequency vibration and shaking.Not with engineering machinery driver group
Disconnected to expand, they also increasingly improve in the requirement to working environment, this just proposes higher requirement to the comfort of driver's cabin.
In order to which the driver's cabin to engineering truck carries out vibration isolation, is generally obstructed using damper and weaken vehicle frame to driver's cabin
It transmits vibrational energy and so as to improve the ride comfort of vehicle driving, and improves operation to accelerate the decaying of vehicle frame and cab vibration
The comfort of personnel.
What is used in the prior art is a kind of for the vibration absorber of cab vibration to be isolated for silicon oil damper, and structure is such as
Shown in Fig. 1, including：Mandrel 1a, rubber bodies 2a, interior panel 3a, shell 4a, dampened disk 5a and silicone oil 6a.Wherein, mandrel 1a is used to
Driver's cabin is connected, rubber bodies 2a is provided with around mandrel 1a, interior panel 3a is arranged in rubber bodies 2a, and dampened disk 5a is mounted on core
On axis 1a, the opening of mandrel 1a and rubber bodies 2a closing shell 4a form the cavity for accommodating silicone oil 6a, and silicone oil 6a is used to mandrel
1a and rubber bodies 2a provides support.
Although such silicon oil damper can play attenuation to the vibration of driver's cabin, in practical applications still
One of at least have the following disadvantages：
(1) it cannot be effectively isolated vibration, driver's cabin in the engineering truck course of work is not solved fundamentally yet and generate low frequency
The problem of shaking；
(2) such silicon oil damper rigidity is fixed, it is difficult to adapt to engineering truck complicated work in traveling especially operation process
The demand of condition, it is difficult to promote the comfort of engineering truck to the maximum extent.
(3) dynamic characteristic of silicon oil damper is affected by temperature larger, and rigidity and damping reduce as the temperature increases,
For a long time under big load, large impact when operation, vibration isolating effect can be decreased obviously silicone oil vibration absorber.
Summary of the invention
It, can when the vibration absorber is for engineering truck the purpose of the present invention is to propose to a kind of vibration absorber and engineering truck
The vibration generated in engineering truck traveling and the course of work is more efficiently isolated.
To achieve the above object, first aspect present invention provides a kind of vibration absorber, including shell and rubber spring, institute
Stating rubber spring includes the rubber bodies that mandrel and fitting are enclosed in the mandrel periphery, and the rubber spring is at least partially disposed at institute
It states in shell, and forms the first cavity between bottom and the inner walls, the outer end of the mandrel is used to connect with vibration isolation object
It connects, the mandrel inner end, which is connected with, is located at intracorporal first elastic construction of first chamber, and first elastic construction is located at institute
State in the first cavity and/or be equipped in the rubber bodies the second elastic construction.
Further, first elastic construction is metal spring, and one end of the metal spring is interior with the mandrel
End connection, the other end are resisted against on the inner bottom surface of the shell.
Further, the metal spring is helical spring, the diameter of the helical spring from the inner end of the mandrel to
The inner bottom surface of the shell is gradually increased.
Further, second elastic construction is air spring, is equipped in the rubber bodies and connects with first cavity
The second logical cavity, the air spring include being filled in the intracorporal gas of the second chamber.
Further, the rubber spring further includes at least partly being embedded in the intracorporal insert of the rubber, described embedding
Entering part includes the first reinforcement part, and first reinforcement part is between second cavity and the bottom surface of the rubber bodies.
Further, the insert further includes sidewall portion and the second reinforcement part, the both ends of the sidewall portion respectively with institute
The first reinforcement part and the connection of the second reinforcement part are stated, the sidewall portion is cylindrical in shape and is centered around the periphery of second cavity side,
First reinforcement part and the second reinforcement part are horizontally disposed, and the rubber bodies are stretched out in second reinforcement part part, are used for and institute
It states shell and the mounting portion connecting with the fixing base is collectively formed.
Further, be filled with damping liquid in first cavity, the damping liquid fill to the rubber bodies
Lower surface flush.
It further, further include dampened disk, the dampened disk is connected to the inner end of the mandrel and is immersed in the damping
In liquid, the dampened disk is equipped with damping hole, is used to form past for damping liquid when the mandrel is moved with vibration isolation object
The dynamic channel of resurgent.
Further, between the outer profile of the dampened disk and the inner sidewall of the shell and the dampened disk it is upper
Gap is all had between surface and the lower surface of the rubber bodies.
Further, the dampened disk includes the disk edge being inclined outwardly with side wall of trying to get to the heart of a matter, and the damping hole is located at the disk
On bottom, Open Side Down is set in the mandrel inner end for the dampened disk.
To achieve the above object, second aspect of the present invention provides a kind of engineering truck, including described in above-described embodiment
Vibration absorber.
Based on the above-mentioned technical proposal, the vibration absorber of the embodiment of the present invention is connected in mandrel inner end and is located at the first cavity
It is equipped with the second elastic construction in the first interior elastic construction and/or rubber bodies, the vibration absorber is by rubber spring and other elasticity
Structure is organically combined in structure, on the basis of carrying out vibration damping using rubber spring, increases other elastic constructions
Vibration is further absorbed, can be improved vibration isolation rate, so that the vibration more efficiently generated to vibration isolation object is isolated.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings：
Fig. 1 is the structural schematic diagram of vibration absorber in the prior art；
Fig. 2 is the cross-sectional view of one embodiment of vibration absorber of the present invention；
Fig. 3 is the top view of vibration absorber shown in Fig. 2；
Fig. 4 is the perspective view of vibration absorber shown in Fig. 2；
Fig. 5 is the cross-sectional view of rubber spring in vibration absorber shown in Fig. 2；
Fig. 6 is the structural schematic diagram of one embodiment of insert in vibration absorber shown in Fig. 2.
Description of symbols
1a, mandrel；2a, rubber；3a, interior panel；4a, shell；5a, dampened disk；6a, silicone oil；
1, mandrel；2, rubber bodies；3, the second cavity；4, insert；5, sealing element；6, shell；7, dampened disk；8, the first chamber
Body；9, damping liquid；10, helical spring；21, groove；41, the first reinforcement part；42, sidewall portion；43, the second reinforcement part；44, pacify
Fill hole；61, holding section；71, it tries to get to the heart of a matter；72, disk edge；73, damping hole.
Specific embodiment
The present invention described further below.In the following paragraphs, the different aspect of embodiment is defined in more detail.So
The various aspects of restriction can be combined with any other one aspect or many aspects, can not be combined unless explicitly stated otherwise.Especially,
It is considered as preferred or advantageous any feature can be considered as preferred or advantageous feature group with other one or more
It closes.
The terms descriptions merely for convenience such as " first " that occurs in the present invention, " second " have same names to distinguish
Different building blocks, be not offered as successively or primary-slave relation.
In the description of the present invention, it is to be understood that, term "inner", "outside", "upper", "lower", " left side " and " right side " etc. refer to
The orientation or positional relationship shown is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of the description present invention, without
It is that the device of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For limiting the scope of the invention.
As shown in Fig. 2, the invention proposes a kind of improved vibration absorber, in a schematical embodiment, including
Shell 6 and rubber spring, rubber spring include the rubber bodies 2 that mandrel 1 and fitting are enclosed in 1 periphery of mandrel, and rubber spring is at least
Part is located in shell 6, and the first cavity 8 is enclosed between 6 inner wall of bottom and shell, and shell 6 (is exposed in the outer end of mandrel 1
Outer one end) for being connect with vibration isolation object, shell 6 with fixing base for connecting, and 1 inner end of mandrel is (positioned at the one of shell 6
End) it is connected with the first elastic construction being located in the first cavity 8 the second elastic construction or first perhaps is set in rubber bodies 2
Elastic construction and the second elastic construction are arranged simultaneously.For example, carrying out vibration damping, then vibration isolation object to the driver's cabin to engineering truck
For driver's cabin, fixing base is the pedestal on vehicle frame or vehicle frame.
Wherein, the first elastic construction can play damping effect, the first elasticity when mandrel 1 is moved back and forth with vibration isolation object
Structure is equivalent to be arranged in series with rubber spring.Second elastic construction can make rubber with the reciprocating motion of vibration isolation object in mandrel 1
Damping effect is played while spring deforms.Such vibration absorber by the first elastic construction and/or the second elastic construction with
Rubber spring carries out organic assembling, and on the basis of carrying out vibration damping using rubber spring, it is further to increase other elastic constructions
Vibration is absorbed, can be improved vibration isolation rate, thus the vibration that more efficiently isolation vibration isolation object generates.
In this embodiment, the first elastic construction is metal spring, and one end of metal spring is connect with the inner end of mandrel 1,
The other end can be resisted against on the inner bottom surface of shell 6, and metal spring is in compressive state in vibration absorber.The outer end of mandrel 1
When being in original state (being not affected by vibration) after connecting with vibration isolation object, mandrel 1 will be made vibration absorber by external load function
Generate precompressed compression deformation, and make constitutional balance inside vibration absorber in a certain position, in the process metal spring relative to
State when mandrel 1 is not connected with vibration isolation object generates further compressive deformation.When vibration isolation object is impacted by low-frequency vibration,
Mandrel 1 is moved back and forth with vibration isolation object, so that metal spring be driven to change pressure repeatedly relative to the equilbrium position under original state
Contracting amount size, to absorb the energy that vibration generates, so that the vibration born to vibration isolation object buffers.
The rigidity of metal spring is larger, the damping that generates during self-deformation and to vibration bring amplitude attenuation
It is smaller, primarily serve the effect for mitigating impact.Metal spring is arranged in series with rubber spring, is conducive to reduce the whole of vibration absorber
Body rigidity can be effectively isolated low-frequency vibration.The rigidity of metal spring can be adjusted according to the demand of carrying, to adapt to not
With the demand of operating condition.
Preferably, metal spring is helical spring 10, and the diameter of helical spring 10 is in from the inner end of mandrel 1 to shell 6
Bottom surface is gradually increased.Alternatively, butterfly spring, flat spring etc. also may be selected in metal spring.Metal spring is reciprocal with mandrel 1
During movement generates compressive deformation, the rigidity of metal spring becomes larger with the increase of load, makes the entirety of vibration absorber
Rigidity becomes larger, and can be automatically adjusted according to the demand of carrying, to meet the vibration damping demand under different loads.If this subtracts
Device shake in engineering truck, can preferably adapt to the demand of engineering truck complex working condition in traveling and operation process, and
Promote the comfort of engineering truck.
Optionally, according to the adoptable material of metal spring, metal spring can be steel spring (such as spring steel and stainless
Steel), copper spring etc., it is all that form spring made of the metal material of spring within the scope of the present invention.
As shown in Fig. 2, the second elastic construction is air spring, the second chamber being connected to the first cavity 8 is equipped in rubber bodies 2
Body 3, air spring include the gas being filled in the second cavity 3, such as air or other types of gas.Specifically, second
Cavity 3 can be designed as the monoblock type cavity for surrounding the setting of mandrel 1, or around multiple separate type cavitys of mandrel setting, rubber
Colloid 2 still has wall thickness between side wall and mandrel 1 of 3 part of the second cavity close to mandrel 1, can be improved rubber bodies 2 and core
The bond strength of axis 1.Rubber bodies 2 are successively decreased in the wall thickness that 3 part of the second cavity is connect with mandrel 1 from 1 outer end of mandrel to inner end, with
Just the connected component of the first cavity 8 and the second cavity 3 is formed, which, which can be, is located at surrounding for 2 inner surface of rubber bodies
The cavity of mandrel 1.
Mandrel 1 drives rubber bodies 2 to occur shear-deformable when moving back and forth with vibration isolation object, while making the second chamber
The volume of body 3 increases or reduces, to carry out damping vibration attenuation to vibration amplitude.Air spring can design lower rigidity value, tool
There is preferable low frequency vibration isolation performance；And air spring has comparatively ideal nonlinear elasticity characteristic, and it can be according to vibration characteristics
Demand obtains corresponding elastic characteristic curve by the design of 3 size of the second cavity or shape；In addition the rigidity meeting of air spring
Become larger with the increase of load.If the vibration absorber is used for engineering truck, it is suitable for vehicle and works under different loads
Vibration isolation demand, make vehicle operation it is more steady.
Preferably, the second cavity 3 is located at the medium position of 2 thickness direction of rubber bodies, whole to rubber bodies 2 to minimize
The influence of rigidity.
It will affect the rigidity of rubber bodies 2 in view of opening up the second cavity 3 in rubber bodies 2, in order on this basis to rubber
Colloid 2 is reinforced, and in conjunction with Fig. 2, Fig. 5 and Fig. 6, rubber spring may also include the insertion being at least partly embedded in rubber bodies 2
Part 4, insert 4 include the first reinforcement part 41, and the first reinforcement part 41, can between the second cavity 3 and the bottom surface of rubber bodies 2
Reinforce the rigidity that rubber bodies 2 are located at 3 lower area of the second cavity.
Further, insert 4 further includes sidewall portion 42 and the second reinforcement part 43, and the both ends of sidewall portion 42 are respectively with first
Reinforcement part 41 and the connection of the second reinforcement part 43, the settable knuckle in coupling part, sidewall portion 42 are cylindrical in shape and are centered around second
The periphery of 3 side of cavity, the first reinforcement part 41 and the second reinforcement part 43 are horizontally disposed, and rubber bodies are stretched out in 43 part of the second reinforcement part
2, for the mounting portion connecting with fixing base to be collectively formed with shell 6.As seen from Figure 6, center is integrally formed in insert 4
The cylinder-shaped tray type structure of aperture, insert 4 and mandrel 1 are coaxially disposed.
In Fig. 3 and vibration absorber shown in Fig. 4, the main part of shell 6 is top opening, the closed cylindrical shape in bottom
Structure, the outer profile that outward bending is equipped at open end is rectangular flange, and the second reinforcement part 43 stretches out the outer of 2 part of rubber bodies
Profile be also it is rectangular, the second reinforcement part 43 is located on the flange of shell 6 and is bonded with shell 6, to form the peace of vibration absorber
Flange is filled, four angles of mounting flange are equipped with mounting hole 44, for vibration absorber to be mounted on fixing base by fastener
On.In order to which the flange of shell 6 and the second reinforcement part 43 are fixed together, the outer edge of 6 flange of shell can local setting card
Conjunction portion 61, specifically, holding section 61 can be L-shaped grab, and horizontal part is limited in the upper surface of the second reinforcement part 43, vertical portion
It is sticked in the side of 6 flange of shell and the second reinforcement part 43.
On the basis of the above embodiments, closed first is enclosed between 6 inner wall of the bottom of rubber spring and shell
Cavity 8 is filled with damping liquid 9 in the first cavity 8, such as silicone oil or other viscous liquids etc. may be selected in damping liquid 9,
The filling of damping liquid 9 is extremely flushed with the lower surface of rubber bodies 2.Due to the Incoercibility of damping liquid 9, can exist to rubber spring
Support is provided during vibration damping.The leakage of damping liquid 9 in order to prevent is set between the side wall of rubber bodies 2 and the inner wall of shell 6
There is sealing element 5, for example, sealing element 5 is the sealing ring of annular.
In order to realize vibration damping using damping liquid 9, as shown in Fig. 2, vibration absorber of the invention further includes dampened disk
7, dampened disk 7 is connected to the inner end of mandrel 1 and is immersed in damping liquid 9, and metal spring is located at the lower part of dampened disk 7, damping
Disk 7 is equipped with damping hole 73, is used to form the channel back and forth flowed when mandrel 1 is moved with vibration isolation object for damping liquid 9.When
When damping liquid 9 back and forth flows in damping hole 73, the throttle effect consumption vibrational energy of damping hole 73 can be utilized.
The embodiment can increase damping using the reciprocating compression of damping liquid 9 flowed back and forth with gas, can be effective
Ground inhibits resonant amplitude, accelerates the decaying of low frequency impact load.If the vibration absorber is used in engineering truck, can effectively solve
The problem of certainly existing driver's cabin shakes.Air spring at work, due to the incompressible characteristic of damping liquid 9, with
The increase of oscillating load amount, rubber bodies 2 occur shear-deformable, reduce the volume of the second cavity 3, and the rigidity of air spring increases
Add, the bearing capacity of air spring is also increase accordingly at this time；When oscillating load amount reduces, the bearing capacity of air spring also phase
It should reduce.In this way, making vibration that smoothly flexible transmitting occur, to make vibration amplitude compressed air to do work by mechanical energy
Effectively inhibited.
Preferably, dampened disk 7 and mandrel 1 are coaxially disposed, and multiple damping holes 73 along the circumferential direction uniformly divide in dampened disk 7
Cloth makes vibration absorber in week so that the power that damping liquid 9 acts on dampened disk 7 in flow process is consistent in the circumferential
Effectiveness in vibration suppression upwards everywhere is more balanced.
Preferably, between the outer profile of dampened disk 7 and the inner sidewall of the shell 6 and upper surface of dampened disk 7 and rubber bodies
Gap is all had between 2 lower surface, to guarantee dampened disk 7 in the process of reciprocating, damping liquid 9 can flow suitable
Freely.
In a kind of specific structure, dampened disk 7 is disk structure, including 71 and the disk edge that is inclined outwardly of side wall of trying to get to the heart of a matter
72, damping hole 73, which is located at, tries to get to the heart of a matter on 71, tries to get to the heart of a matter and is additionally provided with mounting hole on 71, so that dampened disk 7 is set in mandrel 1 by mounting hole
Inner end.Dampened disk 7 and mandrel 1 can be connected by interference fit, and dampened disk 7 can also be embedded to the annular groove in 1 inner end of mandrel
In.Preferably, Open Side Down is set in 1 inner end of mandrel for dampened disk 7, this is because vibration absorber when dampened disk 7 moves downward
Rigidity is smaller, and the rigidity of vibration absorber is larger when moving upwards, in vibration processes mandrel 1 can drive dampened disk 7 move downward compared with
Big amplitude, Open Side Down for dampened disk 7, has better damping.
In the present invention more preferably embodiment, still referring to FIG. 2, shell 6 is cylindrical structure, correspondingly, rubber bodies 2 are cylinder
Shape structure, and it is coaxially set in the outer surface of mandrel 1, and rubber bodies 2 are located at the upper surface A outside shell 6 and are higher than the upper of mandrel 1
End face B, the upper surface of rubber bodies 2 are equipped with groove 21, and groove 21 is formed around the periphery for being located at mandrel 1, the outer edge of groove 21
In the upper surface A of rubber bodies 2, after arc-shaped setting groove 21, inside edge transition is connected to the outer end face B of mandrel 1.
In this embodiment, when the load and larger percussion that vibration absorber is born, mandrel 1 can generate biggish axis
To displacement.When mandrel 1, which moves downward, compresses metal spring, it is sufficient to cause vibration isolation object contact to the upper surface of rubber bodies 2
A, after contact, rigidity when vibration absorber compresses mainly is provided by the compressive deformation of rubber bodies 2, is compressed and is become due to rubber bodies 2
Rigidity is larger when shape, it is thus possible to play the role of axial limiting and buffering, it is biggish in axially generation to limit vibration absorber
Compression displacement.When mandrel 1, which moves upwards, reduces the decrement of metal spring, it is sufficient to dampened disk 7 be caused to touch rubber bodies 2
Lower end surface, after contact, vibration absorber stretch when rigidity be mainly located at below the second cavity 3 by dampened disk 7, rubber bodies 2
4 collective effect of part and insert, since the rigidity of dampened disk 7,2 lower part of rubber bodies and insert 4 is larger, Er Qieqian
The first reinforcement part 41 for entering part 4 can be supported dampened disk 7, will equally play the role of axial limiting and buffering at this time,
Biggish stretching displacement is axially being generated to limit vibration absorber.Thus the embodiment can reduce vibration isolation object and generate low frequency rolling
It is dynamic, increase stability.
Illustrate the working principle and advantage of vibration absorber of the present invention with specific embodiment shown in Fig. 2 below.The vibration damping
Device organically combines air spring, metal spring, rubber spring and damping liquid 9 in structure, has played each
From the advantages of, there is lower vibration isolation rigidity, lower intrinsic frequency, biggish damping can be improved vibration isolation rate, be effectively isolated
Low-frequency vibration.Moreover, the synthesis of vibration absorber of the invention by air spring, metal spring, rubber spring and damping liquid 9
Effect, can be when by biggish load or impact, and vibrational energy of decaying rapidly, damper compared with the prior art comes
It says, dynamic response is rapider, and die-away time is short, and temperature rises slowly, thus the vibration absorber is for a long time in biggish load or punching
When hitting lower operation, vibration isolating effect will not be decreased obviously.
It is convenient that description is intended merely to when providing each embodiment above, a certain structure is included into a certain specific vibration damping knot
In structure, but some structural members may be shared between in fact different vibration-proof structures.For example, the rubber spring in Fig. 2 may include
Mandrel 1, rubber bodies 2 and insert 4；Air spring may include rubber bodies 2, gas and damping liquid 9 in the second cavity 3.
The vibration of driver's cabin is absorbed to install vibration absorber of the invention in engineering truck, when in use, will be subtracted
The shell 6 of vibrating device is fixed on vehicle frame or pedestal by mounting hole 44, and the upper end of mandrel 1 is connect with cab bottom, at this time
Vibration absorber will be preloaded effect by one and generate precompressed compression deformation, and rubber spring, dampened disk 7, metal spring will at this time
Balance is in a certain position.
When there is low-frequency vibration impact on vehicle frame or pedestal, the mandrel 1 that will drive in vibration absorber first is up and down reciprocatingly transported
It is dynamic, generate rubber bodies 2 shear-deformable, the volume of the second cavity 3 will be with increasing or reducing, since damping liquid 9 can not
Compression, rubber bodies 2, the gas in the second cavity 3 and damping liquid 9 form air spring at this time, while the up and down motion of mandrel 1 makes
The deflection of metal spring changes, since rigidity of the metal spring in compression becomes larger as load increases, to make
Vibration absorber overall stiffness becomes larger, to adapt to carry out different loads the demand of vibration damping.
When dampened disk 7 is in effective stroke, i.e., before the lower surface that dampened disk 7 contacts rubber bodies 2, mandrel 1 it is past
Multiple movement can make shear-deformable, metal spring the compressive deformation of rubber bodies 2 and the compression of air spring gas is to subtract jointly
Vibrating device provides required rigidity.Moreover, the reciprocating motion of mandrel 1 drives dampened disk 7 to move up and down, pass through damping liquid 9
Damping hole 73 on dampened disk 7 flows back and forth, while the also flowing with damping liquid 9 of the gas reciprocating compression in the second cavity 3
Damping needed for cooperatively providing can make vibration that smoothly flexible transmitting occur, play isolation low-frequency vibration and rapidly decaying
The effect of vibrational energy.
In addition, the present invention also provides a kind of engineering truck, including vibration absorber described in above-described embodiment.Preferably,
Vibration absorber is mounted on under-cab, the vibration being subject to for weakening driver's cabin.Alternatively, vibration absorber also it is mountable
Other positions for needing vibration damping in engineering truck.
For installing the engineering truck of vibration absorber of the present invention in under-cab, can at least have one of following advantages：
(1) air spring, metal spring, rubber spring and damping liquid 9 there is into unit due to vibration absorber of the invention
It is combined, can effectively damp low frequency vibrate, and vibrational energy of decaying rapidly, it is thus possible to obstruct and weaken vehicle frame to driving
The vibrational energy of room transmitting, accelerates the decaying of vibration, with the ride comfort of betterment works vehicle driving and improves relaxing for operator
Adaptive.
(2) vibration absorber can hinder vibration by the flowing back and forth of the reciprocating compression and damping liquid 9 of air spring
Buddhist nun, which makes to vibrate while decaying, occurs smoothly flexible transmitting, can effectively reduce influence of the driver's cabin low frequency shaking to human body.
(3) metal spring of variation rigidity is provided in vibration absorber, rigidity can be automatically adjusted with magnitude of load, Neng Gouman
Vibration damping demand of the sufficient engineering truck under various working.
(4) when engineering truck encounters biggish dynamic loading and shock loading, vibration absorber can play axis to driver's cabin
To limit and buffer function, prevent shock loading from damaging to the connecting portion of driver's cabin and car body.
A kind of vibration absorber provided by the present invention and engineering truck are described in detail above.It is used herein
Principle and implementation of the present invention are described for specific embodiment, and the explanation of above example is only intended to help to manage
Solve method and its core concept of the invention.It should be pointed out that for those skilled in the art, not departing from
, can be with several improvements and modifications are made to the present invention under the premise of the principle of the invention, these improvement and modification also fall into this hair
In bright scope of protection of the claims.
Claims (10)
1. a kind of vibration absorber, which is characterized in that including shell (6) and rubber spring, the rubber spring include mandrel (1) and
Fitting is enclosed in the rubber bodies (2) of the mandrel (1) periphery, and the rubber spring is at least partially disposed in the shell (6), and
It being formed the first cavity (8) between bottom and the shell (6) inner wall, the outer end of the mandrel (1) is used to connect with vibration isolation object,
The shell (6) with fixing base for connecting；
Mandrel (1) inner end is connected with the first elastic construction being located in first cavity (8), while the rubber bodies
(2) the second elastic construction is equipped in；Or the second elastic construction is only equipped in the rubber bodies (2)；
Wherein, second elastic construction is air spring, is equipped in the rubber bodies (2) and is connected to first cavity (8)
The second cavity (3), the air spring includes the gas that is filled in second cavity (3), the mandrel (1) with
When vibration isolation object moves back and forth, the rubber bodies (2) are driven to occur shear-deformable, while making the volume of second cavity (3)
It increases or reduces, to carry out damping vibration attenuation to vibration amplitude.
2. vibration absorber according to claim 1, which is characterized in that first elastic construction is metal spring, described
One end of metal spring is connect with the inner end of the mandrel (1), and the other end is resisted against on the inner bottom surface of the shell (6).
3. vibration absorber according to claim 2, which is characterized in that the metal spring is helical spring (10), described
The diameter of helical spring (10) is gradually increased from the inner end of the mandrel (1) to the inner bottom surface of the shell (6).
4. vibration absorber according to claim 1, which is characterized in that the rubber spring further includes at least partly being embedded
Insert (4) in the rubber bodies (2), the insert (4) include the first reinforcement part (41), first reinforcement part (41)
Between second cavity (3) and the bottom surface of the rubber bodies (2).
5. vibration absorber according to claim 4, which is characterized in that the insert (4) further include sidewall portion (42) and
Second reinforcement part (43), the both ends of the sidewall portion (42) connect with first reinforcement part (41) and the second reinforcement part (43) respectively
Connect, the sidewall portion (42) is cylindrical in shape and is centered around the periphery of the second cavity (3) side, first reinforcement part (41) and
Second reinforcement part (43) is horizontally disposed, and second reinforcement part (43) partially stretches out the rubber bodies (2), is used for and the shell
(6) mounting portion connecting with the fixing base is collectively formed.
6. any vibration absorber according to claim 1~5, which is characterized in that filled with resistance in first cavity (8)
Buddhist nun's liquid (9), damping liquid (9) filling are extremely flushed with the lower surface of the rubber bodies (2).
7. vibration absorber according to claim 6, which is characterized in that further include dampened disk (7), the dampened disk (7) is even
It being connected to the inner end of the mandrel (1) and is immersed in the damping liquid (9), the dampened disk (7) is equipped with damping hole (73),
It is used to form the channel back and forth flowed when the mandrel (1) is moved with vibration isolation object for damping liquid (9).
8. vibration absorber according to claim 7, which is characterized in that the outer profile and the shell of the dampened disk (7)
(6) between being all had between inner sidewall and between the upper surface of the dampened disk (7) and the lower surface of the rubber bodies (2)
Gap.
9. vibration absorber according to claim 7, which is characterized in that the dampened disk (7) includes try to get to the heart of a matter (71) and side wall
The disk that is inclined outwardly along (72), the damping hole (73) be located at it is described try to get to the heart of a matter on (71), Open Side Down is arranged for the dampened disk (7)
In the mandrel (1) inner end.
10. a kind of engineering truck, which is characterized in that including any vibration absorber of claim 1~9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710088160.XA CN106704460B (en) | 2017-02-20 | 2017-02-20 | Vibration absorber and engineering truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710088160.XA CN106704460B (en) | 2017-02-20 | 2017-02-20 | Vibration absorber and engineering truck |
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| Publication Number | Publication Date |
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| CN106704460A CN106704460A (en) | 2017-05-24 |
| CN106704460B true CN106704460B (en) | 2018-11-23 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107740840B (en) * | 2017-11-20 | 2024-05-28 | 江苏徐工国重实验室科技有限公司 | Shock absorber and engineering vehicle |
| CN107989956A (en) * | 2017-11-30 | 2018-05-04 | 山推工程机械股份有限公司 | A kind of assemble method of silicon oil damper, bull-dozer and silicon oil damper |
| CN107989955A (en) * | 2017-11-30 | 2018-05-04 | 山推工程机械股份有限公司 | A kind of assemble method of silicon oil damper, bull-dozer and silicon oil damper |
| CN108591355B (en) * | 2018-06-27 | 2024-06-18 | 佛山科学技术学院 | Vertical vibration isolation support |
| CN110360412B (en) * | 2019-07-19 | 2024-07-02 | 江苏徐工工程机械研究院有限公司 | Hydraulic vibration damper and engineering machinery |
| WO2021043281A1 (en) * | 2019-09-06 | 2021-03-11 | 株洲时代新材料科技股份有限公司 | Liquid combined spring and rigidity and damping adjusting method therefor |
| CN110566626A (en) * | 2019-09-06 | 2019-12-13 | 株洲时代新材料科技股份有限公司 | Liquid composite spring |
| CN115257680B (en) * | 2022-09-05 | 2024-04-16 | 马天和 | Damping type electromechanical braking unit suitable for urban rail vehicle |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3526117B2 (en) * | 1994-11-07 | 2004-05-10 | 株式会社小松製作所 | Liquid filled suspension |
| CN201757150U (en) * | 2010-07-20 | 2011-03-09 | 常州市东海橡胶厂有限公司 | Silicon oil shock absorber |
| CN202280102U (en) * | 2011-10-31 | 2012-06-20 | 中联重科股份有限公司 | Floor frame mounting structure, bulldozer and excavator |
| CN102494078A (en) * | 2011-12-28 | 2012-06-13 | 常州市东海橡胶厂有限公司 | High-energy consumption viscoelastic silicone oil cabin vibration damper |
| CN103994170B (en) * | 2014-06-06 | 2016-05-18 | 无锡圣丰减震器有限公司 | damping silicon oil shock absorber |
| CN206592472U (en) * | 2017-02-20 | 2017-10-27 | 徐工集团工程机械有限公司 | Vibration absorber and engineering truck |
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