CN110529535A - A kind of base steel composite fiber-reinforced resin material leaf springs of car - Google Patents
A kind of base steel composite fiber-reinforced resin material leaf springs of car Download PDFInfo
- Publication number
- CN110529535A CN110529535A CN201910778103.3A CN201910778103A CN110529535A CN 110529535 A CN110529535 A CN 110529535A CN 201910778103 A CN201910778103 A CN 201910778103A CN 110529535 A CN110529535 A CN 110529535A
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- China
- Prior art keywords
- fiber
- resin material
- prepreg
- car
- reinforced
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/021—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant characterised by their composition, e.g. comprising materials providing for particular spring properties
-
- 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
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/18—Leaf springs
Abstract
The present invention provides a kind of base steel composite fiber-reinforced resin material leaf springs of car, including high duty metal steel plate, grasswort, centre bore, fiber-reinforced composite resin material layer, glass fibre prepreg, carbon fiber prepreg and positioning bolt；The high duty metal surface of steel plate is enclosed with multilayer, multidirectional fiber-reinforced composite resin material layer, and fiber-reinforced composite resin material layer is laid with and is solidified by glass fibre prepreg and carbon fiber prepreg mixing；The high duty metal steel plate offers centre bore, and fiber-reinforced composite resin material layer and high duty metal steel plate in the pre-buried positioning bolt of central hole by making the two one through being molded vacuum forming, this a series of structure, it can satisfy the requirement of heavy duty truck, solve the problems, such as that the existing connection cracking of existing composite material plate spring and lateral stiffness are weak, security reliability is obviously improved.
Description
Technical field
The invention belongs to field of automobile parts and components, more specifically, in particular to a kind of base steel composite fiber-reinforced resin
Material leaf springs of car.
Background technique
Leaf spring is most widely used a kind of elastic element in automotive suspension, if it is but Length discrepancy wide by dry plate
The spring beam that is composed of alloy spring piece, have many advantages, such as that structure is simple, process flow is short, development difficulty is relatively low.
Large size load-carrying vehicle is mostly metallic steel scutum spring at present, and this leaf spring is fixed on vehicle after using two panels or multi-disc metal laminated
Suspension bottom, when wheel bears road shocks power, steel plate is deformed, and plays the role of buffering, vibration damping to vehicle.But it passes
The leaf spring of system steel exists than great, and the bad problem of fatigue life bad and resistance to environmental attack performance, higher self weight can drop
The cargo dead-weight of low vehicle, while biggish hidden danger is also brought to safety.Especially rise in oil price, environment are protected in recent years
The raising of shield and safety and comfort standard, leaf spring are difficult to meet the requirement of future automobile industry gradually.
Based on automotive light weight technology and ecological requirements, composite material plate spring comes into being.It is compound compared with conventional steel leaf spring
Material leaf spring has the characteristics that light weight, elastic strain are big, specific strain energy is high, fatigue life is long and " safe breaking property ".Currently,
Composite material plate spring has been used including the parts such as Volvo, benz and Nanjing IVECO vehicles vehicle.But by practical dress
Vehicle and road test verifying, single composite material plate spring have the following problems:
1, due to composite material self character and structure, leaf spring vertical stiffness technical requirements easily meet, but laterally
Rigidity is weaker.When heavy goods vehicles are in road conditions traveling of jolting, when leaf spring is by lateral impact forces or twisting resistance, it is possible to beyond multiple
Condensation material transverse direction bulk strength causes the safety problems such as leaf spring cracking, damage.
2, composite material and both ends metal connecting piece are mostly used and are bolted, due to vehicle in braking process leaf spring by
Shearing force it is larger, connecting portion composite material may by metal grasswort and connect bolt collective effect power break, thus
Influence vehicle safety performance.
Summary of the invention
In order to solve the above technical problem, the present invention provides a kind of base steel composite fiber-reinforced resin material leaf springs of car,
It is easy cracking, damage to solve above-mentioned existing single composite material plate spring, composite material is connect with its both ends metal connecting piece
The problem of place is easily broken off.
The present invention a kind of purpose and effect of base steel composite fiber-reinforced resin material leaf springs of car, by technology in detail below
Means are reached:
A kind of base steel composite fiber-reinforced resin material leaf springs of car, including high duty metal steel plate, grasswort, centre bore,
Fiber-reinforced composite resin material layer, glass fibre prepreg, carbon fiber prepreg and positioning bolt；The high duty metal steel
Plate is plate structure, and high duty metal steel plate both ends are machined with molding grasswort in conjunction；The high duty metal steel plate
It is coated with multilayer, multidirectional fiber-reinforced composite resin material layer, and fiber-reinforced composite resin material layer is by glass fibers
Dimension prepreg and carbon fiber prepreg mixing are laid with and solidify；The high duty metal steel plate offers centre bore, and fiber
Enhancing composite resin material layer and high duty metal steel plate in the pre-buried positioning bolt of central hole by making the two one through being molded
Vacuum forming.
Further, the high duty metal steel plate pulls intensity >=1700MPa.
Further, the glass fibre prepreg material is glass fibre, carbon fiber, aramid fiber or basalt fibre
In it is one or more.
Further, the carbon fiber prepreg material is epoxy resin or polyurethane.
Further, the laying direction of its prepreg of the fiber-reinforced composite resin material layer by leaf spring length direction into
Row multilayer place mat, and the laying angle of prepreg includes one of 0 °, 85 °, ± 45 ° or multiple combinations, and prepreg
Laying is with a thickness of 5-30mm.
Further, the molding vacuum forming process includes compression molding and vacuum flexible bag moulding, wherein mold process
Pressure be 4-16MPa, vacuum ranges are in 0.4-0.6MPa.
Further, the preparation method of a kind of base steel composite fiber-reinforced resin material leaf springs of car, this method
Steps are as follows:
1, by high duty metal steel plate according to blanking-alignment-drill centers-both ends grasswort-forming heat treatment bending forming,
Quenching, the compound leaf spring base steel core material of tempering-shot-peening process machine-shaping；
2, it is laid with fiber-reinforced composite resin material layer in base steel core surfaces, hole location pre-buried positioning bolt in center uses
Autoclave process solidification, obtains base steel composite fiber-reinforced resin material leaf springs of car.Fiber-reinforced composite resin material layer
It is laid with direction and presses leaf spring length direction, glass fibre prepreg thickness in monolayer is 0.6mm, and carbon fiber prepreg thickness in monolayer is
0.23mm, the scheme that is laid with are 04/851/04/851/04/851/04/851/04(0 ° of direction uses glass fibre prepreg, 85 ° of directions
Using carbon fiber prepreg, index number indicates to be laid with the number of plies).
Compared with prior art, the invention has the following beneficial effects:
The present invention changes its structure, Lay up design on the basis of existing automobile front suspension steel plate spring assembly
Into proposing a kind of new composite material plate spring structure, the structure is by high duty metal steel plate and fiber-reinforced composite resin material
The bed of material is combined by compression molding, and there is no the connectivity problems of composite material and metalwork, is guaranteeing leaf spring vertical stiffness
On the basis of, while plate spring assembly lateral stiffness is improved, solve the existing connection cracking of existing composite material plate spring and transverse direction
The problem of rigidity weakness, can satisfy the requirement of heavy duty truck, and security reliability is obviously improved.
Detailed description of the invention
Fig. 1 is main view plane complete section structural schematic diagram of the present invention.
Fig. 2 is half section structure diagram of the present invention.
In figure, the corresponding relationship of component names and accompanying drawing number are as follows:
1, high duty metal steel plate；101, grasswort；102, centre bore；2, fiber-reinforced composite resin material layer；201, glass
Glass fiber prepreg material；202, carbon fiber prepreg；3, positioning bolt.
Specific embodiment
Embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples.Following embodiment is used for
Illustrate the present invention, but cannot be used to limit the scope of the invention.
In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more；Term " on ",
The orientation or positional relationship of the instructions such as "lower", "left", "right", "inner", "outside", " front end ", " rear end ", " head ", " tail portion " is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second ", " third " etc. are used for description purposes only, and should not be understood as instruction or
Imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " connected " " connects
Connect " it shall be understood in a broad sense, for example, it may be being fixedly connected, it may be a detachable connection, or be integrally connected；It can be machine
Tool connection, is also possible to be electrically connected；It can be directly connected, it can also be indirectly connected through an intermediary.For this field
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Embodiment:
It is as shown shown in Figure 1 and Figure 2:
The present invention provides a kind of base steel composite fiber-reinforced resin material leaf springs of car, including high duty metal steel plate 1, volume
Ear 101, centre bore 102, fiber-reinforced composite resin material layer 2, glass fibre prepreg 201, carbon fiber prepreg 202 and fixed
Position bolt 3；The high duty metal steel plate 1 is plate structure, and 1 both ends of high duty metal steel plate are machined with molding in conjunction
Grasswort 101；The high duty metal steel plate 1 is coated with multilayer, multidirectional fiber-reinforced composite resin material layer 2, and
Fiber-reinforced composite resin material layer 2 is laid with and is solidified by glass fibre prepreg 201 and the mixing of carbon fiber prepreg 202；
The high duty metal steel plate 1 offers centre bore 102, and fiber-reinforced composite resin material layer 2 and high duty metal steel plate 1
Make the two one through being molded vacuum forming by positioning bolt 3 pre-buried at centre bore 102.
Wherein, the high duty metal steel plate 1 pulls intensity >=1700MPa.
Wherein, 201 material of glass fibre prepreg is glass fibre, carbon fiber, aramid fiber or basalt fibre
In it is one or more.
Wherein, 202 material of carbon fiber prepreg is epoxy resin or polyurethane, and above-mentioned fibrous composite has peace
The characteristic being broken entirely will not occur to destroy suddenly, have better anti-fatigue performance compared with metal material leaf spring.
Wherein, the laying direction of 2 its prepreg of fiber-reinforced composite resin material layer is carried out by leaf spring length direction
Multilayer place mat, and the laying angle of prepreg includes one of 0 °, 85 °, ± 45 ° or multiple combinations, and the paving of prepreg
It folds with a thickness of 5-30mm.
Wherein, the molding vacuum forming process includes compression molding and vacuum flexible bag moulding, wherein the pressure of mold process
Power is 4-16MPa, and vacuum ranges are in 0.4-0.6MPa.
Wherein, a kind of the step of preparation method of base steel composite fiber-reinforced resin material leaf springs of car, this method
It is as follows:
High duty metal steel plate 1 is (curved according to the blanking-alignment-both ends drill centers 102- grasswort 101- forming heat treatment
Song forming, quenching, tempering)-shot-peening the compound leaf spring base steel core material of process machine-shaping；
It is laid with fiber-reinforced composite resin material layer 2 in base steel core surfaces, the pre-buried positioning bolt 3 of centre bore 102 uses
Autoclave process solidification, obtains base steel composite fiber-reinforced resin material leaf springs of car.Fiber-reinforced composite resin material layer 2
It is laid with direction and presses leaf spring length direction, 201 thickness in monolayer of glass fibre prepreg is 0.6mm, 202 single monolayer thick of carbon fiber prepreg
Degree is 0.23mm, and the scheme that is laid with is 04/851/04/851/04/851/04/851/04(0 ° of direction uses glass fibre prepreg 201,
85 ° of directions use carbon fiber prepreg 202, and index number indicates to be laid with the number of plies).
The specifically used mode and effect of the present embodiment:
Base steel composite fiber-reinforced resin material leaf springs of car is by high duty metal steel plate 1 and fiber-reinforced composite resin material
The bed of material 2 is combined by compression molding, which is not present the connectivity problem of composite material and metalwork, is guaranteeing that leaf spring is vertical
To on the basis of rigidity, while plate spring assembly lateral stiffness is improved, extends the fatigue life of leaf spring, meet heavy duty truck
Requirement, security reliability is obviously improved, and improves vehicle comfort and fuel economy, and to realizing composite material
Flat spring formally apply with vehicle lightweight, be of great significance.
The embodiment of the present invention is given for the purpose of illustration and description, and is not exhaustively or by this to send out
It is bright to be limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Choosing
Selecting and describe embodiment is and to make those skilled in the art to more preferably illustrate the principle of the present invention and practical application
It will be appreciated that the present invention is to design various embodiments suitable for specific applications with various modifications.
Claims (6)
1. a kind of base steel composite fiber-reinforced resin material leaf springs of car, it is characterised in that: the base steel composite fiber-reinforced resin
Material leaf springs of car includes high duty metal steel plate (1), grasswort (101), centre bore (102), fiber-reinforced composite resin material
Layer (2), glass fibre prepreg (201), carbon fiber prepreg (202) and positioning bolt (3)；The high duty metal steel plate
It (1) is plate structure, and high duty metal steel plate (1) both ends are machined with molding grasswort (101) in conjunction；The high intensity
Metal foil (1) is coated with multilayer, multidirectional fiber-reinforced composite resin material layer (2), and fiber-reinforced composite resin
Material layer (2) is laid with and is solidified by glass fibre prepreg (201) and carbon fiber prepreg (202) mixing；The high intensity
Metal foil (1) offers centre bore (102), and fiber-reinforced composite resin material layer (2) and high duty metal steel plate (1) are logical
Crossing the pre-buried positioning bolt (3) at centre bore (102) makes the two one through being molded vacuum forming.
2. base steel composite fiber-reinforced resin material leaf springs of car as described in claim 1, it is characterised in that: the high-intensitive gold
Belong to steel plate (1) pulls intensity >=1700MPa.
3. base steel composite fiber-reinforced resin material leaf springs of car as described in claim 1, it is characterised in that: the glass fibre
Prepreg (201) material is one or more in glass fibre, carbon fiber, aramid fiber or basalt fibre.
4. base steel composite fiber-reinforced resin material leaf springs of car as described in claim 1, it is characterised in that: the carbon fiber is pre-
Leaching material (202) material is epoxy resin or polyurethane.
5. base steel composite fiber-reinforced resin material leaf springs of car as described in claim 1, it is characterised in that: the fiber reinforcement
The laying direction of composite resin material layer (2) its prepreg carries out multilayer place mat, and the laying of prepreg by leaf spring length direction
Angle includes one of 0 °, 85 °, ± 45 ° or multiple combinations, and the laying of prepreg is with a thickness of 5-30mm.
6. base steel composite fiber-reinforced resin material leaf springs of car as described in claim 1, it is characterised in that: the molding vacuum
Forming process includes compression molding and vacuum flexible bag moulding, and wherein the pressure of mold process is 4-16MPa, and vacuum ranges exist
0.4-0.6MPa。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910778103.3A CN110529535A (en) | 2019-08-22 | 2019-08-22 | A kind of base steel composite fiber-reinforced resin material leaf springs of car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910778103.3A CN110529535A (en) | 2019-08-22 | 2019-08-22 | A kind of base steel composite fiber-reinforced resin material leaf springs of car |
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| CN110529535A true CN110529535A (en) | 2019-12-03 |
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| CN201910778103.3A Pending CN110529535A (en) | 2019-08-22 | 2019-08-22 | A kind of base steel composite fiber-reinforced resin material leaf springs of car |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112339519A (en) * | 2020-11-13 | 2021-02-09 | 奇瑞汽车股份有限公司 | Automobile chassis connecting rod and preparation method thereof, transverse stabilizer bar assembly and automobile |
| CN112949111A (en) * | 2021-01-29 | 2021-06-11 | 东风银轮(十堰)非金属部件有限公司 | Design optimization method for leaf spring |
| CN112941428A (en) * | 2021-01-14 | 2021-06-11 | 苏州鸿翼卫蓝新材科技有限公司 | Preparation method of composite plate spring |
| CN113525444A (en) * | 2021-08-19 | 2021-10-22 | 南京工业大学 | Train is left-hand thread structure combined material leaf spring for bogie |
| CN115139500A (en) * | 2022-06-07 | 2022-10-04 | 北京工业大学 | Fiber reinforced composite material automobile plate spring and preparation method thereof |
-
2019
- 2019-08-22 CN CN201910778103.3A patent/CN110529535A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112339519A (en) * | 2020-11-13 | 2021-02-09 | 奇瑞汽车股份有限公司 | Automobile chassis connecting rod and preparation method thereof, transverse stabilizer bar assembly and automobile |
| CN112941428A (en) * | 2021-01-14 | 2021-06-11 | 苏州鸿翼卫蓝新材科技有限公司 | Preparation method of composite plate spring |
| CN112949111A (en) * | 2021-01-29 | 2021-06-11 | 东风银轮(十堰)非金属部件有限公司 | Design optimization method for leaf spring |
| CN112949111B (en) * | 2021-01-29 | 2022-08-23 | 东风银轮(十堰)非金属部件有限公司 | Design optimization method for leaf spring |
| CN113525444A (en) * | 2021-08-19 | 2021-10-22 | 南京工业大学 | Train is left-hand thread structure combined material leaf spring for bogie |
| CN115139500A (en) * | 2022-06-07 | 2022-10-04 | 北京工业大学 | Fiber reinforced composite material automobile plate spring and preparation method thereof |
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Legal Events
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| PB01 | Publication | ||
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Application publication date: 20191203 |