CN109878285A - A kind of flat spring and rubber spring compound suspension frame system - Google Patents
A kind of flat spring and rubber spring compound suspension frame system Download PDFInfo
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- CN109878285A CN109878285A CN201910102495.1A CN201910102495A CN109878285A CN 109878285 A CN109878285 A CN 109878285A CN 201910102495 A CN201910102495 A CN 201910102495A CN 109878285 A CN109878285 A CN 109878285A
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Abstract
The invention discloses a kind of flat springs and rubber spring compound suspension frame system, including main spring, auxiliary spring, clip, rubber friction noise reduction piece, upper mounting seat and lower mounting seat；Main spring is leaf spring, and auxiliary spring is rubber spring, and leaf spring is two-piece type metallic composite leaf spring, and two-piece type metallic composite leaf spring includes composite material plate spring and the metal leaf spring that is connected to above composite material plate spring.Upper mounting seat and lower mounting seat are separately connected at the top and bottom of rubber spring, rubber spring connects leaf spring by lower mounting seat.Flat spring and rubber spring compound suspension frame system in the present invention, have many advantages, such as that light-weight, the service life is long, vehicle driving ride comfort is good, realizes the lightweight of product；Solve the problems, such as that composite material bears multi-load and is easily layered.
Description
Technical field
The present invention relates to the productions and manufacturing technology field of automobile suspension system and components.
Background technique
As society increasingly payes attention to the energy conservation and environmental protection of automobile, automotive light weight technology, which undoubtedly becomes, reduces greenhouse gases row
It puts, reduces the important measures of energy consumption.Automobile leaf spring is with the invention of automobile and the development of automotive engineering, leaf spring
Material and technology continue to develop, and Tensile strength has reached 1400Mpa or more, and structure is realized from multiple-leaf spring to few leaf spring
The lightweight of Leaf Spring Suspension, but the weight of steel plate spring assembly is still extremely heavy, has great loss of weight space, becomes state
The hot spot of inside and outside scholar's research.
Fibre reinforced composites have many advantages, such as that light-weight, specific strength and specific stiffness height, fatigue limit are high, anticorrosion,
The extremely important effect of performer in automotive light weight technology manufacture.The master that fibre reinforced composites are applied to automobile chassis is held
It carries in component flat spring, weight can be significantly reduced, realize the target of loss of weight consumption reduction；Rubber spring is as load-carrying unit and elasticity
Element is widely used, and rubber spring has many advantages, such as that carrying is big, deformation is big, density is low and rigidity can design, and can substitute automobile
Leaf spring auxiliary spring in suspension system.
Control stability under light truck and the middle ride performance and loaded vehicle state blocked under complete vehicle curb condition in order to balance, rear overhang
Frame plate spring generallys use the steel plate spring assembly with second level rigidity.In general, light truck and it is middle block rear plate spring assembly main spring with
Auxiliary spring is made of three pieces steel leaf spring respectively, and auxiliary spring is on main spring, as shown in Figure 1.In zero load, the weight of vehicle body is by leading
Spring undertakes, and the rigidity of suspension is exactly the rigidity of main spring；When loaded vehicle, with the sinking of vehicle body, car body weight is by main spring and auxiliary spring
Shared, the rigidity of suspension are the sum of main spring and the rigidity of auxiliary spring.
Existing Leaf Spring Suspension System front suspension uses the leaf spring of level-one rigidity, by the above cross-section of two panels or change
Section steel plate spring groups at；Existing Leaf Spring Suspension System rear suspension uses the leaf spring of two stage stiffness, and main auxiliary spring is all
It is formed using the above cross-section of two panels or variable-section steel sheet spring, main spring is generally located in below auxiliary spring.Existing leaf spring
The major defect of suspension system is that weight is too heavy, increases fuel consumption, the service life of leaf spring is relatively low, often needs to change disconnected
Piece.
In the prior art, application No. is the utility models of CN200920318672.1 to disclose a kind of cargo vehicle steeraxle
With variation rigidity hollow rubber spring compound suspension frame device, mainly by dumb iron, steel plate spring assembly, the hollow rubber of variation rigidity
Glue spring and damper are constituted, and dumb iron riveting or bolt are on vehicle frame;Steel plate spring assembly passes through riveting or bolt
On the leaf spring front and back support of the vehicle frame outside of belly, it is connected with vehicle frame;Variation rigidity hollow rubber spring passes through hollow rubber spring
Mounting plate is bolted in vehicle frame lower aerofoil, positioned at the top of steel plate spring assembly.Application No. is the inventions of CN201410257986.0
A kind of automobile and its plate spring suspension brackets assembly are disclosed, which includes leaf spring, and the both ends of leaf spring are fixed by first
Component is installed on vehicle body, and middle part is installed on vehicle bridge by the second fixation kit, and leaf spring is the longitudinally arranged monolithic along vehicle body
Composite material plate spring, and the both ends of leaf spring and the section at middle part are equal, what is parabolically changed between end and middle part thickens
Section.
Summary of the invention
The present invention provides a kind of flat spring and rubber spring on the basis of meeting leaf springs of car suspension system performance requirement
Compound suspension frame system has more preferably ride performance and carries out the lightweight of suspension system.
The technical scheme is that a kind of flat spring and rubber spring compound suspension frame system, including main spring and it is connected to
Auxiliary spring above main spring, main spring are leaf springs, and auxiliary spring is rubber spring, and leaf spring is two-piece type metallic composite leaf spring, two
Sheet metal composite material plate spring includes composite material plate spring and the metal leaf spring that is connected to above composite material plate spring.
The flat spring and rubber spring compound suspension frame system further includes rubber friction noise reduction piece, rubber friction noise reduction piece
The both ends upper surface of composite material plate spring is connected to by bolt and adhesive；Rubber friction noise reduction piece is rubber-metal structure,
Rubber friction noise reduction piece includes rubber friction noise reduction piece bottom plate and the abrasive rubber for being connected to rubber friction noise reduction piece substrate；
Rubber friction noise reduction piece is vulcanized by rubber friction noise reduction piece bottom plate and abrasive rubber.
The lower peace that the flat spring and rubber spring compound suspension frame system further includes upper mounting seat and be mounted on leaf spring
Fill seat；The top of rubber spring connects upper mounting seat.
Rubber spring bolts upper mounting seat.
Lower mounting seat is mounted on leaf spring upper surface；The upper surface and side of lower mounting seat are equipped with for installing U-bolt
Groove；Gap, and the upper surface of lower mounting seat and rubber are remained between the upper surface of lower mounting seat and the bottom surface of rubber spring
The bottom surface of glue spring can be in contact under loaded vehicle state.
Composite material plate spring is using the wide iso-stress structure to thicken or cross-section is long-pending；Rubber spring using natural rubber and
Filler vulcanizes.
Rubber spring width and main spring middle part are of same size, and axisymmetricly structure, the front and back of rubber spring are long for rubber spring
Degree is the 2 times or more of left and right width.
It is equipped with annular groove in the middle part of rubber spring, is equipped with multiple blind holes inside rubber spring.
The flat spring and rubber spring compound suspension frame system further includes clip, and composite material plate spring and metal leaf spring are logical
Cross clamp connection together.
Metal leaf spring is the leaf spring with grasswort, and composite material plate spring is fiber-reinforced composite material board spring.
Flat spring and rubber spring compound suspension frame system in the present invention, have it is light-weight, the service life is long, vehicle driving is smooth
The advantages that property is good.It has obviously advantage compared with present Vehicle Leaf-spring Suspension: compared to all-metal main and auxiliary type
Leaf spring, main spring use two-piece type metallic composite composite leaf spring, and auxiliary spring realizes the light of product using single rubber spring
Quantization；Compared to the main spring of single piece composite material, main spring first uses leaf spring, is primarily subjected to starting, braking and lateral force
And torque, second composite material plate spring are primarily subjected to vertical force, solve composite material receiving multi-load and are easily layered
The problem of；Composite material plate spring does not need to undertake lateral force caused by starting, braking and torque, and reliability is higher, and product is tired
The labor service life is higher.Compared to polyurethane buffering block, polyurethane buffering block can only undertake very small part load, and main function is
Limit；Compared to damping rubber block, rubber spring amount of deflection is big, and deformation leading portion rigidity is linear, deformation back segment rigidity in non-linear,
Rubber spring has three aspect effects of auxiliary spring carrying, buffering and limit concurrently.
In the present invention, composite material plate spring and rubber spring can provide certain damping, the suspension system of identical Static stiffness
System has more preferably ride performance；Composite material plate spring and rubber spring specific strength and specific stiffness are high, realize entire suspension system
The lightweight of system；Composite material plate spring and rubber spring global failure are a slow processes, the service life be 2 times of leaf spring with
On.Auxiliary spring is rubber spring, is mounted on the position of limit rubber block, and rubber spring width and main spring middle part are of same size,
Length will reach the 2 times or more of width on longitudinal direction, and increasing longitudinal length allows rubber spring to undertake more vertical loads, rubber
Glue spring rate is pressurized below in non-linear in rubber spring, and rigidity increases sharply, and is played the role of leaf spring and is limited.This hair
In bright, rubber friction noise reduction piece, rubber friction noise reduction are equipped between the main spring of first steel plate and second main spring of composite material
Piece transmits the vertical force between the main spring of two panels and eliminates the noise generated when rubbing between the main spring of two panels.
Detailed description of the invention
Fig. 1 is light truck in the prior art and middle clamp plate spring suspension frame structure figure；
Fig. 2 is flat spring and rubber spring compound suspension frame system schematic in the present invention；
Fig. 3 is the two-piece type metallic composite leaf spring schematic diagram in the present invention；
Fig. 4 a, Fig. 4 b are respectively the main view and left view schematic diagram of the rubber spring in the present invention；
Fig. 5 is the rubber spring scheme of installation in the present invention；
Fig. 6 is the rubber friction noise reduction piece structural schematic diagram in the present invention；
Fig. 7 is rubber spring load-displacement curves figure；
In figure: 1. two-piece type metallic composite leaf springs, 2. rubber springs, 3. upper mounting seats, 4. lower mounting seats,
11. metal leaf spring, 12. composite material plate springs, 13. clips, 14. rubber friction noise reduction pieces, 141. rubber friction noise reduction pieces
Bottom plate, 142. abrasive rubbers.
Specific embodiment
With reference to the accompanying drawings, the invention will be further described in conjunction with specific embodiments.
Please refer to Fig. 2 to Fig. 6, a kind of flat spring and rubber spring compound suspension frame system, including two-piece type Metals composite
Flitch spring 1(two-piece type metal and composite material plate spring), rubber spring 2, upper mounting seat 3 and lower mounting seat 4.Rubber spring bolt
(being bolted) in upper mounting seat, upper mounting seat is bolted in the side of longitudinal beam.Lower mounting seat and panel spring hold-down plate close
Two be one, and the lower mounting surface (lower surface) of lower mounting seat is pressed on leaf spring, and the upper surface and side of lower mounting seat are equipped with U-bolt
Groove, scheduled gap, the upper surface of lower mounting seat are remained between the upper surface of lower mounting seat and the bottom surface of rubber spring
It is contacted under loaded vehicle state with rubber spring.Two-piece type metallic composite leaf spring is flat spring and rubber spring compound suspension frame system
The main spring of system, rubber spring are the auxiliary spring of flat spring and rubber spring compound suspension frame system.
Rubber spring is located at the upper surface of two-piece type metallic composite leaf spring, and upper mounting seat is equipped on body frame stringer,
It is equipped with lower mounting seat on two-piece type metallic composite leaf spring top, the upper surface (upper horizontal surface) of lower mounting seat is located at rubber
The underface of spring bottom surface is equipped with certain interval between rubber spring and lower mounting seat, in empty wagons load between loaded vehicle load,
Gap is eliminated, and vehicle is carried jointly by two-piece type metallic composite leaf spring and rubber spring.
In automobile zero load, rubber spring and lower mounting seat are with the presence of gap, and the load of vehicle is by two-piece type metal composite
Material leaf spring undertakes.As the load increases, gap is gradually reduced until eliminating, at this moment, the load of vehicle is by two-piece type metal
Composite material plate spring and rubber spring shared.
As shown in figure 3, flat spring and the main spring of rubber spring compound suspension frame system are that two-piece type metallic composite is compound
Leaf spring (two-piece type metallic composite leaf spring), two-piece type metallic composite leaf spring include two flat springs: first is metal
Leaf spring 11, second is composite material plate spring 12.Metal leaf spring is the leaf spring with grasswort, and composite material plate spring is that fiber increases
Strong composite material plate spring.Composite material plate spring and metal leaf spring are linked together by clip 13, two-piece type metallic composite
Leaf spring both ends are nearby equipped with clip.For piece of metal leaf spring with grasswort above, leaf spring uses high-strength spring steel, leads to
Cross the intensity that surface stress ball blast improves leaf spring.Leaf spring has isotropism, and all directions intensity is all very high, mainly
Starting, braking and the lateral force and torque for bearing transmitting automobile, undertake least a portion of vertical load.Composite material plate spring undertakes master
The vertical load wanted.Using glass (or carbon fiber) enhancing/epoxy resin composite material production, material has each to different composite material
Property, in machine direction intensity close to high-strength spring steel, composite material plate spring is primarily subjected to vertical load.Rubber friction noise reduction piece
14 are connected to the upper surface location near the both ends of second composite material plate spring by bolt, nut and adhesive.Such as Fig. 6 institute
Show, rubber friction noise reduction piece is rubber-metal structure, and rubber friction noise reduction piece includes rubber friction noise reduction piece bottom plate 141 and connection
In the abrasive rubber 142 of rubber friction noise reduction piece substrate；Rubber friction noise reduction piece is by rubber friction noise reduction piece bottom plate and resistance to
Rubber milling vulcanizes.Rubber friction noise reduction piece is rubber-metal structure, is generated when rubbing between the main elimination main spring of two panels
Noise passes through the shear-deformable relative displacement realized between the main spring of two panels of rubber.
Two panels composite material plate spring passes through prepreg using glass (or carbon fiber) enhancing/epoxy resin composite material production
Be pressed and molded after laying, composite fiber laying is generally 0 degree, according to intensity need to small part laying use ± 45 degree into
Row reinforcement, reinforcing fiber volume content range are 50%-70%.Composite material plate spring using it is wide thicken or cross-section product etc. answer
Power structure.Rubber spring is used as main body using the high natural rubber of compressive strength, then filled increase intensity be easy to be sulfided into
Type.
As shown in Fig. 4 a, Fig. 4 b and Fig. 7, auxiliary spring is rubber spring, and rubber spring has auxiliary spring, buffering and limit concurrently
Effect.It is of same size in the middle part of rubber spring width and main spring, rubber spring axisymmetricly structure, front and back and tiled configuration axis pair
Claim, length (anterior-posterior length) will reach the 2 times or more of width (left and right width) on longitudinal direction, and increasing longitudinal length makes rubber spring can
To undertake more vertical loads.There is an annular groove in the middle part of rubber spring, multiple blind holes can be set inside rubber spring, increases rubber
Glue spring deflection.Rigidity is linear for the previous period for latex spring deformation, and for deformation back segment time rigidity in non-linear, deformation is last
Stage rigidity increases suddenly.Behind rubber spring compression, rigidity increases sharply, and plays the role of leaf spring limit.
The installation method of flat spring and rubber spring compound suspension frame system, includes the following steps: first, zero needed for being ready to
Component and tool materials；Second, upper mounting seat is bolted in the side of longitudinal beam；Third, by the upper end (top of rubber spring
Portion) it bolts in upper mounting seat；4th, it assembles main spring: rubber friction noise reduction piece is connected to by bolt, nut and adhesive
The both ends upper surface of composite material plate spring；Then, metal leaf spring is connected by centre bolt with nut with composite material plate spring
Together, centre bolt is located at main spring medium position；Clip is installed at main spring both ends；5th, install main spring and lower installation
Seat: lower mounting seat is mounted in the middle part of main spring, and the lower surface of lower mounting seat is pressed on metal leaf spring, the upper surface position of lower mounting seat
In the underface of rubber spring bottom surface, and make to remain with scheduled suitable gap between rubber spring and lower mounting seat；Lower peace
Dress seat is not connect with rubber spring, and moving down in heavy condition lower body and rubber spring can contact with lower mounting seat；6th, it checks
Debug and complete the installation of flat spring and rubber spring compound suspension frame system.
A kind of flat spring and rubber spring compound suspension frame system of the present invention, is a hair about plate spring suspension brackets
It is bright, have many advantages, such as that light-weight, the service life is long, vehicle driving ride comfort is good.The present invention utilizes fibre reinforced composites specific strength
The carrying of advantage and the rubber high with specific stiffness and elasticity capacity, composite material plate spring and rubber spring can provide certain resistance
The suspension system of Buddhist nun, identical Static stiffness have more preferably ride performance；Composite material plate spring and rubber spring specific strength and ratio
Rigidity is high, realizes the lightweight of entire suspension system；Composite material plate spring and rubber spring global failure are a slow process, longevity
Life is the 2 times or more of leaf spring.Rubber spring has the function of that front half section occur in rubber limited block, rubber spring load displacement
Linear rigidity, to certain displacement after rigidity start to increase suddenly.
Compared with prior art, the prior art is such as: a kind of automobile and plate spring suspension system, leaf spring and polyurethane buffering block group
It closes and uses, leaf spring is single piece composite material leaf spring, and polyurethane buffering block has the function of auxiliary spring, buffering and limit.The present invention
It is that plate spring structure is different from the difference of such prior art, the present invention is the compound leaf spring of two-piece type, and main spring first uses steel
Flat spring, is primarily subjected to starting, braking and lateral force and torque, second composite material plate spring are primarily subjected to vertical force, solves
Composite material bears the problem of multi-load has been layered.Compared to such prior art, composite material plate spring of the invention
Reed does not need to undertake lateral force caused by starting, braking and torque, and reliability is higher, and product fatigue life is higher.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., is all included in the scope of protection of the present invention.
Claims (10)
1. a kind of flat spring and rubber spring compound suspension frame system, including main spring and the auxiliary spring being connected to above main spring, main spring
It is leaf spring, auxiliary spring is rubber spring, characterized in that leaf spring is two-piece type metallic composite leaf spring, two-piece type metal composite
Material leaf spring includes composite material plate spring and the metal leaf spring that is connected to above composite material plate spring.
2. flat spring according to claim 1 and rubber spring compound suspension frame system, characterized in that further include rubber friction
Noise reduction piece, rubber friction noise reduction piece are connected to the both ends upper surface of composite material plate spring by bolt and adhesive；Rubber friction
Noise reduction piece is rubber-metal structure, and rubber friction noise reduction piece includes rubber friction noise reduction piece bottom plate and is connected to rubber friction noise reduction
The abrasive rubber of piece substrate；Rubber friction noise reduction piece is vulcanized by rubber friction noise reduction piece bottom plate and abrasive rubber.
3. flat spring according to claim 1 and rubber spring compound suspension frame system, characterized in that further include upper mounting seat
With the lower mounting seat being mounted on leaf spring；The top of rubber spring connects upper mounting seat.
4. flat spring according to claim 3 and rubber spring compound suspension frame system, characterized in that on rubber spring bolt
Mounting base.
5. flat spring according to claim 3 and rubber spring compound suspension frame system, characterized in that lower mounting seat is mounted on
Leaf spring upper surface；The upper surface and side of lower mounting seat are equipped with the groove for installing U-bolt；The upper surface of lower mounting seat
Gap is remained between the bottom surface of rubber spring, and the upper surface of lower mounting seat and the bottom surface of rubber spring are under loaded vehicle state
It can be in contact.
6. flat spring according to claim 1 and rubber spring compound suspension frame system, characterized in that composite material plate spring is adopted
With the wide iso-stress structure to thicken or cross-section is long-pending；Rubber spring is vulcanized using natural rubber and filler.
7. flat spring according to claim 1 and rubber spring compound suspension frame system, characterized in that rubber spring width with
Of same size in the middle part of main spring, axisymmetricly structure, the anterior-posterior length of rubber spring are the 2 times or more of left and right width to rubber spring.
8. flat spring according to claim 1 and rubber spring compound suspension frame system, characterized in that set in the middle part of rubber spring
There is annular groove, is equipped with multiple blind holes inside rubber spring.
9. flat spring according to claim 1 and rubber spring compound suspension frame system, characterized in that it further include clip, it is multiple
Condensation material leaf spring is together with metal leaf spring is by clamp connection.
10. flat spring according to claim 1 and rubber spring compound suspension frame system, characterized in that metal leaf spring is band
The leaf spring of grasswort, composite material plate spring are fiber-reinforced composite material board springs.
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| CN201910102495.1A CN109878285A (en) | 2019-02-01 | 2019-02-01 | A kind of flat spring and rubber spring compound suspension frame system |
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| CN201910102495.1A CN109878285A (en) | 2019-02-01 | 2019-02-01 | A kind of flat spring and rubber spring compound suspension frame system |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112026825A (en) * | 2020-09-25 | 2020-12-04 | 中车长春轨道客车股份有限公司 | Composite plate spring structure for primary suspension system of railway vehicle |
| CN112046534A (en) * | 2020-09-25 | 2020-12-08 | 中车长春轨道客车股份有限公司 | Primary suspension system of railway vehicle adopting composite plate spring |
| CN112721559A (en) * | 2020-12-31 | 2021-04-30 | 浙江林氏汽车零部件有限公司 | Automobile rubber support |
| CN113059972A (en) * | 2020-01-02 | 2021-07-02 | 株洲时代新材料科技股份有限公司 | Lightweight suspension device |
| CN113059974A (en) * | 2020-01-02 | 2021-07-02 | 株洲时代新材料科技股份有限公司 | Composite plate spring protection device |
| CN113059973A (en) * | 2020-01-02 | 2021-07-02 | 博戈橡胶塑料（株洲）有限公司 | Combined suspension device |
| CN113602050A (en) * | 2021-08-12 | 2021-11-05 | 安徽江淮汽车集团股份有限公司 | Integral bridge type suspension |
| CN113733840A (en) * | 2021-08-31 | 2021-12-03 | 东风商用车有限公司 | Noise reduction sheet for commercial vehicle and preparation method thereof |
| CN114056019A (en) * | 2020-08-04 | 2022-02-18 | 现代自动车株式会社 | Leaf spring device and installation method thereof |
| CN114861300A (en) * | 2022-04-15 | 2022-08-05 | 中国第一汽车股份有限公司 | Variable-thickness composite plate spring refined modeling method |
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| CN203198671U (en) * | 2013-04-28 | 2013-09-18 | 株洲时代新材料科技股份有限公司 | Spring suspension frame |
| CN205298363U (en) * | 2016-01-06 | 2016-06-08 | 中国重汽集团济南动力有限公司 | A plate spring assembly for truck suspension |
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Application publication date: 20190614 |