CN107740830A - The compound plate spring assembly of few piece - Google Patents
The compound plate spring assembly of few piece Download PDFInfo
- Publication number
- CN107740830A CN107740830A CN201710827125.5A CN201710827125A CN107740830A CN 107740830 A CN107740830 A CN 107740830A CN 201710827125 A CN201710827125 A CN 201710827125A CN 107740830 A CN107740830 A CN 107740830A
- Authority
- CN
- China
- Prior art keywords
- plate
- plate spring
- spring assembly
- few piece
- backing plate
- 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.)
- Pending
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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
- F16F1/18—Leaf springs
- F16F1/20—Leaf springs with layers, e.g. anti-friction layers, or with rollers between the leaves
-
- 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
- F16F1/26—Attachments or mountings
- F16F1/30—Attachments or mountings comprising intermediate pieces made of rubber or similar elastic material
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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
- F16F2238/00—Type of springs or dampers
- F16F2238/02—Springs
- F16F2238/022—Springs leaf-like, e.g. of thin, planar-like metal
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Springs (AREA)
Abstract
The present invention relates to a kind of compound plate spring assembly of few piece.Few compound plate spring assembly of piece includes composite material plate spring body, metal leaf spring and metal platen, wherein, the first backing plate is provided between the metal platen and composite material plate spring body.
Description
Technical field
The present invention relates to auto parts and components field, more particularly to a kind of compound plate spring assembly of few piece.
Background technology
Flat spring is the flexible member commonly used in automobile suspension system, if usually by the alloy bullet of the wide Length discrepancy of dry plate
Spring steel combines and forms one group and be similar to equicohesive spring beam.Traditional steel spring plate spring account for vehicle weight 5%~
7%, its weight is larger, adds the energy consumption of automobile.In order to improve the performance of leaf spring, mitigate weight, improve the life-span, occur
Variable-section steel sheet spring, single-leaf spring etc..And in recent years, people constantly pursue automotive light weight technology, composite material plate spring
Automobile industry is obtained because of its special superiority more and more to pay close attention to.The piece number of composite leaf spring is also fewer and fewer, weight
Amount is more and more lighter.
But composite material plate spring still has some problems in application process at present.For example, composite panel bullet
The anti-wear performance of spring is poor.Therefore, in heavy duty, composite material plate spring easily produces rigidity with the metal connecting piece on periphery and connect
Tactile or frictional impact, and stress concentration is easily produced at connecting portion.Thus considerably reduce composite panel
The service life of spring.
Therefore, macromolecule material would generally be set between composite material plate spring and each metal connecting piece in the prior art
The bed of material, such as polyurethane, rubber pad.
The U of CN 204674325 and the U of CN 204878480 are disclosed by composite material plate spring and metal platen
Between flexible gasket is set to avoid rigid contact between metallic plate and composite material plate spring, friction and the skill of stress concentration
Art scheme.But flexible material understands wear and aging and produces permanent deformation, after a period of time, the pretightning force meeting of U-bolt
Reduce, so as to have influence on the use of composite material plate spring.
The A of CN 106274330 propose a kind of technical scheme of optimization.Specifically, fastening is set in metal platen
The both ends in face, i.e. metal platen are close to the side of composite material plate spring and are arranged to chamfering or inclined-plane, and in fastening face
It is stained with or vulcanizes upper polymer material layer, such as polyurethane, rubber.To a certain extent, this means avoid composite
Friction and shock effect of the flat spring with metal platen connecting portion.But under case of heavy load, metal platen both ends and high score
Still unavoidable stress concentration can be produced at sub- material, composite material plate spring body is damaged.
CN 106704434 discloses a kind of major-minor formula flat spring assembly.Wherein, auxiliary spring is arranged to downwardly convex circular arc
Shape, and the centre position of the upper and lower surface in auxiliary spring is disposed with elastomeric pad.It is adjacent that this can solve two panels to a certain extent
Friction between flat spring.But in the presence of larger pretightning force, flat spring also occurs that deformation.Moreover, in case of heavy load
Under, more serious deformation or even cracking and fracture can occur for leaf spring.This can cause the reduction of pretightning force, and then reduce leaf spring
Service life.
The content of the invention
For at least some technical problems as described above, the present invention is intended to provide a kind of lacking for automobile suspension system
The compound plate spring assembly of piece.This few compound plate spring assembly of piece can be effectively prevented from flat spring metal platen and plate bullet in heavy duty
The rigid contact and stress concentration of spring body, and vehicle weight can be mitigated, reduce oil consumption.
Therefore, according to the first aspect of the invention, there is provided a kind of compound plate spring assembly of few piece.Including composite panel bullet
Spring body, metal leaf spring and metal platen, wherein, is provided between the metal platen and composite material plate spring body
One backing plate.
According to a preferred embodiment, first backing plate includes metallic plate and polymer material layer, the macromolecule
Material layer is fixed as one by bonding or vulcanizing with the metallic plate.
According to a preferred embodiment, the one side of the metallic plate is smooth plane, and is pasted with the metal platen
Close, another side is rough surface, and the polymer material layer is connected on the rough surface.
According to a preferred embodiment, the polymer material layer is connected to the coarse table by acrylic acid adhesive
On face.
According to a preferred embodiment, first backing plate is formed by polymer material layer, and the macromolecule material
The bed of material is directly bonded in the metal platen.
According to a preferred embodiment, the one side of the metal platen is smooth plane, and another side is rough surface,
First backing plate is connected on the rough surface.
According to a preferred embodiment, the both ends of the rough surface of the metal platen are all provided with being set to inclined-plane, and institute
State the inclined-plane that the both ends on the surface engaged with the rough surface of metal platen of the first backing plate are contoured to correspond to.
According to a preferred embodiment, first backing plate is provided with central through hole.
According to a preferred embodiment, the second pad is provided between the composite material plate spring body and metal leaf spring
Plate.
According to a preferred embodiment, second backing plate is continuous fiber reinforced thermoplastic backing plate, enhancing therein
Material is that glass or carbon are fine, and for fiber content between 40%~70%, hardness is 35 to 90 Shore Ds.
Brief description of the drawings
Embodiments of the invention are described in detail below in conjunction with the accompanying drawings, in figure：
Fig. 1 is the structural representation according to the first embodiment of the first backing plate for being used for the compound plate spring assembly of few piece of the present invention
Figure.
Fig. 2 is the schematic diagram of the compound plate spring assembly of few piece comprising the first backing plate shown in Fig. 1.
Fig. 3 shows the sectional view of the compound plate spring assembly of few piece shown in Fig. 2.
Fig. 4 is the structural representation according to the second embodiment of the first backing plate of the present invention.
Fig. 5 and Fig. 6 respectively illustrates the sectional view of two kinds of modifications of the first backing plate shown in Fig. 4.
Fig. 7 and Fig. 8 respectively illustrates two realities of the second backing plate for being used for the compound plate spring assembly of few piece according to the present invention
Apply the schematic diagram of example.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
Fig. 1 shows the first backing plate 110 for being used for few piece composite material plate spring assembly 100 (see Fig. 2) according to the present invention.
First backing plate 110 includes metallic plate 101, and the polymer material layer 102 being arranged on the surface of metallic plate 101.Wherein,
Polymer material layer 102 is fixed as one by the modes such as bonding, vulcanization and metallic plate 101.
In the present embodiment, the first surface of metallic plate 101, such as upper surface 111 in Fig. 1 are arranged to smooth flat
Face, and the lower surface 112 in relative second surface, such as Fig. 1 is by sandblasting that either polishing or phosphorating treatment are roughened.
So, the bonding adhesive force of second surface is improved.Polymer material layer 102 is set by the mode such as bonding or vulcanization
On the second surface of metallic plate 101, whole first backing plate 110 is formd.
In one embodiment, the thickness of metallic plate 101 is 1 to 4 millimeter.This thickness can reduce cost, be easy to pacify
Dress, while meet the light-weighted requirement of flat spring.Polymer material layer 102 can be the flexible macromolecules such as polyurethane, rubber
Material.Preferably, bonded between metallic plate 101 and polymer material layer 102 using adhesive.Adhesive can use third
Olefin(e) acid adhesive, thickness are, for example, 0.3 to 0.8 millimeter, so as to certain toughness and intensity.The peel strength of adhesive can
7MP is selected larger than, hardening time is, for example, 5 to 15 minutes.
First backing plate 110 is additionally provided with centre bore 131, and its effect will be described below.
Fig. 2 shows the few piece composite material plate spring assembly 100 for including above-mentioned first backing plate 110 according to invention.Together
When, Fig. 3 shows the sectional view of few piece composite material plate spring assembly 100.As shown in Figures 2 and 3, answered according to few piece of the present invention
Condensation material plate spring assembly 100 includes metal platen 106, composite material plate spring body 104 and metal leaf spring 105.Metal pressure
Plate 106, composite material plate spring body 104 and metal leaf spring 105 offer centre bore 132,134 and 135 respectively.Center spiral shell
Bolt 7 is each passed through the centre bore 132 of metal platen 106, composite material plate spring body 104 and metal leaf spring 105,134 and
135, and be engaged with nut 108 and metal platen 106, composite material plate spring body 104 and metal leaf spring 105 are installed
It is fixed together.
According to the present invention, it is provided with as shown in Figure 1 between composite material plate spring body 104 and metal platen 106
First backing plate 110.Wherein, the first surface of the first backing plate 110 contacts with metal platen 106, and polymer material layer 102 is with answering
Condensation material flat spring body 104 is bonded.Centre bolt 107 passes through from the centre bore 131 of the first backing plate 110.
According to the present invention, the first backing plate 110 is arranged between metal platen 106 and composite material plate spring body 104, kept away
The rigid contact of metal platen 106 and composite material plate spring body 104 is exempted from.Also, the high polymer material of the first backing plate 110
Layer 102 is made of polyurethane or rubber, and is bonded with composite material plate spring body 104.In such manner, it is possible to ensure composite
After long-play, polymer material layer 102 will not be deformed and extrude flat spring, and the pre- of bolt 107 can be effectively ensured
Clamp force.Meanwhile this structure can alleviate the friction impact between metal platen 106 and composite material plate spring body 104, and
And avoid the stress concentration of metal platen 106 and the connecting portion of composite material plate spring body 104.Therefore, according to the present invention, energy
Enough reduce the damage to composite material plate spring 104, improve the service life and reliability of composite material plate spring 104.
In a preferred embodiment, the is provided between metal leaf spring 105 and composite material plate spring body 104
Two backing plates 103.Second backing plate 103 is, for example, continuous fiber reinforced thermoplastic backing plate, and its thickness is preferably 1 to 4 millimeter, and hardness is excellent
Elect 35 to 90 Shore Ds as.Fig. 7 and 8 respectively illustrates two examples of the second backing plate 103, wherein, Fig. 7 show second
Backing plate 103 is formed as having rectangular rectangular slab, and the second backing plate 103 that Fig. 8 is shown is formed as through chamfered and with circle
The rectangular slab at angle.It is readily appreciated that, the second backing plate 103 also is provided with centre bore 133, is extended there through for centre bolt 107.
Second backing plate 103 is arranged between composite material plate spring 104 and metal leaf spring 105, avoids composite panel
Rigid contact and friction impact are produced between spring 104 and metal leaf spring 105.Because the second backing plate 103 has certain rigidity
With wearability, therefore in few piece composite material plate spring assembly 100 using after a period of time, the second backing plate 103 will not be deformed.
In this case, composite material plate spring body 104 will not wear, and can effectively ensure that the pretightning force of bolt, so as to
Improve the service life of composite material plate spring 104.
Fig. 4 shows the first backing plate 120 for being used for the compound plate spring assembly 100 of few piece according to a second embodiment of the present invention,
Fig. 5 shows the structure sectional view of first backing plate 120.The first backing plate 120 according to a second embodiment of the present invention with according to this
The difference of first backing plate 110 of invention first embodiment is that first backing plate 120 is to use single high polymer material
The metallic plate 101 that layer comes in alternate embodiment one and the polymer material layer being arranged on the surface of metallic plate 101.Namely
Say, in the second embodiment of the present invention, the first backing plate 120 is made up of polymer material layer completely.
In the present embodiment, the first surface of metal platen 106, such as upper surface 121 in Fig. 4 are arranged to smooth flat
Face, and the lower surface 122 in relative second surface, such as Fig. 4 is by sandblasting that either polishing or phosphorating treatment are roughened.
So, the bonding adhesive force of the second surface of metal platen 106 is improved.First backing plate 120 (i.e. polymer material layer)
It is arranged on the second surface of metal platen 106 by the mode such as bonding or vulcanization, is fixed as one with metal platen 106.
As shown in figure 5, according to the present invention, the first backing plate 120 is additionally provided with centre bore 136.The centre bore 136 is by metal pressure
The centre bore of plate 106 forms through whole first backing plate 120, is extended there through for centre bolt 107.
Fig. 6 show according to the second embodiment of the present invention in the first backing plate 120 another structure sectional view.
In such case, the both ends of the second surface of metal platen 106 are arranged to inclined-plane 123.Correspondingly, the first backing plate 120 with gold
The inclined-plane that the both ends on the surface that the second surface of category pressing plate 106 engages are contoured to correspond to.The structure of this inclined-plane engagement is not only
Deformation is serious after polymer material layer 102 can be avoided compressed, moreover it is possible to reduces the stress concentration at both ends, improves composite panel
The service life of spring.
According to another aspect of the present invention, there is provided a kind of method for installing the compound plate spring assembly 100 of few piece.
First, the processing of centre bore is carried out.Specifically, the first backing plate 110, metal platen 106, the second backing plate 103,
Composite material plate spring 104, the medium position of metal leaf spring 105 process centre bore 131,132,133,134,135 respectively.This
The diameter of a little centre bores is preferably equal.
Then, the compound plate spring assembly 100 of the few piece of installation is reassembled.Here, by each part according to metal platen 106, first
Backing plate 110, composite material plate spring body 104, the second backing plate 103, the order of metal leaf spring 105, with centre bolt 107 once
Installation is attached through centre bore 131,132,133,134,135, and is tightened with nut 108.Thus, obtained according to this hair
The compound plate spring assembly 100 of bright few piece.
According to the present invention the compound plate spring assembly 100 of few piece in, by the first backing plate 110 be arranged on metal platen 106 with
Between composite material plate spring body 104, the rigid contact of metal platen 106 and composite material plate spring body 104 is avoided.
Meanwhile the second backing plate 103 is arranged between composite material plate spring 104 and metal leaf spring 105, avoid composite panel bullet
Rigid contact and friction impact are produced between spring 104 and metal leaf spring 105.Thus, the service life of flat spring is substantially increased
With reliability.
Finally it should be noted that the foregoing is only the preferred embodiments of the invention, do not form to the present invention
Any restrictions.Although the present invention is described in detail with reference to foregoing embodiments, for the technology of this area
For personnel, the technical scheme described in previous embodiment can still be modified, or to which part technical characteristic
Carry out equivalent substitution.Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., all should wrap
Within protection scope of the present invention.
Claims (10)
1. a kind of compound plate spring assembly of few piece, including composite material plate spring body (104), metal leaf spring (105) and metal pressure
Plate (106), wherein, the first backing plate (110) is provided between the metal platen and the composite material plate spring body.
2. the compound plate spring assembly of few piece according to claim 1, it is characterised in that：First backing plate (110) includes gold
Belong to plate (101) and polymer material layer (102), the polymer material layer is fixed by bonding or vulcanizing with the metallic plate
It is integrated.
3. the compound plate spring assembly of few piece according to claim 2, it is characterised in that：The one side of the metallic plate is smooth
Plane, and be bonded with the metal platen, another side is rough surface, and the polymer material layer is connected to the rough surface
On.
4. the compound plate spring assembly of few piece according to claim 3, it is characterised in that：The polymer material layer passes through propylene
Sour adhesive is connected on the rough surface.
5. few piece composite material plate spring assembly according to claim 1, it is characterised in that：First backing plate (120) by
Polymer material layer is formed, and the polymer material layer is directly bonded in the metal platen.
6. the compound plate spring assembly of few piece according to claim 5, it is characterised in that：The one side of the metal platen is smooth
Plane, another side is rough surface, and first backing plate (120) is connected on the rough surface.
7. the compound plate spring assembly of few piece according to claim 6, it is characterised in that：The rough surface of the metal platen
Both ends are all provided with being set to inclined-plane, and the two of the surface engaged with the rough surface of metal platen of first backing plate (120)
Hold the inclined-plane being contoured to correspond to.
8. the compound plate spring assembly of few piece as claimed in any of claims 1 to 7, it is characterised in that：First pad
Plate is provided with central through hole.
9. the compound plate spring assembly of few piece as claimed in any of claims 1 to 8, it is characterised in that：Described compound
The second backing plate (103) is provided between plate of material spring body and metal leaf spring.
10. the compound plate spring assembly of few piece according to claim 9, it is characterised in that：Second backing plate is continuous fiber
Strengthen thermoplastic dunnage, reinforcing material therein is that glass or carbon are fine, and fiber content is between 40%~70%, hardness 35
To 90 Shore Ds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710827125.5A CN107740830A (en) | 2017-09-14 | 2017-09-14 | The compound plate spring assembly of few piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710827125.5A CN107740830A (en) | 2017-09-14 | 2017-09-14 | The compound plate spring assembly of few piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107740830A true CN107740830A (en) | 2018-02-27 |
Family
ID=61235760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710827125.5A Pending CN107740830A (en) | 2017-09-14 | 2017-09-14 | The compound plate spring assembly of few piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107740830A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2649296A (en) * | 1950-05-25 | 1953-08-18 | Harold T Dow | Leaf spring assembly |
| JPS62160907A (en) * | 1986-01-07 | 1987-07-16 | Mitsubishi Steel Mfg Co Ltd | Vehicular suspension device |
| DE9190097U1 (en) * | 1990-06-28 | 1992-05-07 | Jenbacher Transportsysteme AG, Jenbach | Spring package |
| CN204878480U (en) * | 2015-07-20 | 2015-12-16 | 漯河君叁材料高科有限公司 | Combined material board spring clamping plate structure |
| CN106274330A (en) * | 2016-08-05 | 2017-01-04 | 株洲时代新材料科技股份有限公司 | Pressing plate and installation method for automotive composite material flat spring |
-
2017
- 2017-09-14 CN CN201710827125.5A patent/CN107740830A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2649296A (en) * | 1950-05-25 | 1953-08-18 | Harold T Dow | Leaf spring assembly |
| JPS62160907A (en) * | 1986-01-07 | 1987-07-16 | Mitsubishi Steel Mfg Co Ltd | Vehicular suspension device |
| DE9190097U1 (en) * | 1990-06-28 | 1992-05-07 | Jenbacher Transportsysteme AG, Jenbach | Spring package |
| CN204878480U (en) * | 2015-07-20 | 2015-12-16 | 漯河君叁材料高科有限公司 | Combined material board spring clamping plate structure |
| CN106274330A (en) * | 2016-08-05 | 2017-01-04 | 株洲时代新材料科技股份有限公司 | Pressing plate and installation method for automotive composite material flat spring |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180227 |