CN207814290U - A kind of arc cluster spring of the oval tail end connection of goose - Google Patents
A kind of arc cluster spring of the oval tail end connection of goose Download PDFInfo
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- CN207814290U CN207814290U CN201721734793.5U CN201721734793U CN207814290U CN 207814290 U CN207814290 U CN 207814290U CN 201721734793 U CN201721734793 U CN 201721734793U CN 207814290 U CN207814290 U CN 207814290U
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- spring
- clamping ring
- inner spring
- outer spring
- ring
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Abstract
The utility model discloses a kind of arc cluster springs of the oval tail end connection of goose, including outer spring, inner spring, wherein outer spring includes outer spring clamping ring and outer spring active ring, spring wind is arranged at the end side of outer spring, outer spring clamping ring into round dead circle in outer spring clamping ring；Inner spring includes inner spring clamping ring and inner spring active ring, and inner spring clamping ring is arranged the spring wind ovalisation at the end side of inner spring, inner spring clamping ring and extremely encloses；Outer spring and inner spring are connected in such a way that the transverse side of inner spring clamping ring is caught in the gap of outer spring clamping ring.The utility model reduces outer spring and inner spring bonding pad stress, and the problem of sliding into outer spring no longer occurs in inner spring, significantly increases properties of product and quality stability, avoids the occurrence of spring failure.Compared to the product of the prior art, reduce operational sequence, reduces cost.
Description
Technical field
The utility model is related to the groups that a kind of double mass flywheel arc cluster spring, especially tail end are the oval connection of goose
Close spring.
Background technology
Double Mass Flywheel Type Torsional Vibration Damper, abbreviation double mass flywheel are to reduce automotive power transmission system twisting vibration
A highly effective device, shock-absorbing spring is taken out from the Moving plate of clutch, is then arranged into engine and flown by it
On wheel, and forming double Mass Flywheel Type Torsional Vibration Damper so that engine flywheel has multiple functions, not only with original
Function, but also have the function of torsional vibration damper, and due to the installation radius bigger of its shock-absorbing spring, the rigidity of spring is more
Small, relative torsional angle bigger, effectiveness in vibration suppression is more ideal.In addition, due to the uniqueness of its structure, its quality and rigidity can be utilized
Variation adjust the torsional oscillation inherent characteristic of power train, reduce the resonance speed of power train, and using its damping come attenuation factor
Vibration amplitude.
With the promotion of engine power, single-arc shaped damping spring cannot be satisfied technical need.It is driven simultaneously in different
It sails state and needs corresponding spring rate (Nm/ °).Inside and outside cluster spring can provide solution regarding to the issue above.Outer bullet
Spring provides primary rigidity, can meet engine start, low speed segment rigidity requirement, high regime is acted on simultaneously by inside and outside cluster spring.
The difference of arc spring and other straight springs is that the pitch in spring between outside is inconsistent, so as to cause spring surface stress
Unstable, inside is big, and outside is small.So comparatively the design of spring and processing request are higher.
Because double quality arc spring working environments are severe, stress is unstable, compared to more easy fracture for straight spring.Especially inner spring
It must be fixed with outer spring, fix such as inner spring and loosely slide into outer spring, then easily squeeze into the gap of outer spring, then can add
Fast spring breakage.
It is interference fitted in the prior art by inner spring and lid, then inner spring is inserted into outer spring.Realize that two-stage is rigid
It spends and fixes inner spring and outer spring.However, the position of such technical solution hd connecting spring is interference fit, transporting
There is static and dynamic stress during row, therefore is easy to be broken in this region.Meanwhile the installation of lid and spring needs volume
Outer machine and tooling increases process and increases manufacturing cost.Automobile industry quality stability is more demanding, core drive portion
The failure of part will cause product to be recalled from market, and company reputation is damaged or even personal safety accident.Therefore the above-mentioned skill of urgent need to resolve
Art problem.
Utility model content
In view of the drawbacks described above of the prior art, technical problem to be solved in the utility model is outside how being reduced or avoided
The stress of spring and inner spring bonding pad reduces process of the arc spring in production and assembly, reduces cost.
To achieve the goals above, the utility model provides a kind of arc cluster spring for double mass flywheel, packet
Include outer spring, inner spring, wherein outer spring includes outer spring clamping ring and outer spring active ring, and the setting of outer spring clamping ring exists
The end side of outer spring, for spring wind at round dead circle, inner spring includes inner spring clamping ring and inner spring at outer spring clamping ring
Active ring, inner spring clamping ring are arranged the spring wind ovalisation at the end side of inner spring, inner spring clamping ring and extremely enclose, outer bullet
Spring and inner spring are connected in such a way that the transverse side of inner spring clamping ring is caught in the gap of outer spring clamping ring.
Further, the transverse diameter of inner spring clamping ring is more than the diameter of inner spring active ring, inner spring connection
The ellipse short shaft diameter of circle is less than the diameter of inner spring active ring.
Further, the end face of inner spring clamping ring is not higher than the clamping ring end face of outer spring.
Further, the number of turns of outer spring clamping ring is 3~4 circles, and ring gap is 0~0.5mm.
Further, the number of turns of inner spring clamping ring is 3~4 circles.
Further, the spring filament diameter of outer spring is 4.0mm, and mean diameter of coil 23.5mm, free angle is 158 °, rigidity
It is 2.5Nm/ °, presses and angle is 103 °.
Further, the spring filament diameter of inner spring is 3.5mm, and inner spring clamping ring area elliptica major diameter is 16mm, short
Shaft diameter is 14mm, and free angle is 127 °, and stiffness is 6.6Nm/ °, presses and angle is 93 °.
Further, when outer spring compresses between 158 °~127 °, inner spring is in free state；When outer spring pressure
It reduces when 127 °, inner spring starts to be pressurized；When cluster spring is depressed into 103 °, outer spring reaches pressure and angle, combines bullet
Spring is compressed into maximum value.
Further, arc cluster spring has level-one rigidity when only outer spring works, in outer spring and inner spring
There is two level rigidity when working at the same time, by the length of adjusting outer spring and inner spring, level-one rigidity is adjusted, two level rigidity
Interface point and rigidity value.
Further, the material of arc cluster spring is TD SiCr, VD SiCr, VD SiCrV.
The beneficial effects of the utility model are：
The utility model reduces outer spring and inner spring bonding pad stress, and sliding into outer spring no longer occurs in inner spring
Problem significantly increases properties of product and quality stability, avoids the occurrence of spring failure.Compared to the product of the prior art, reduce
Operational sequence, reduces cost.
The technique effect of the design of the utility model, concrete structure and generation is made furtherly below with reference to attached drawing
It is bright, to be fully understood from the purpose of this utility model, feature and effect.
Description of the drawings
Fig. 1 is that a kind of structure of the arc spring of the oval tail end connection of goose of a preferred embodiment of the utility model is shown
It is intended to.
Fig. 2 is a kind of inside and outside bullet of the arc spring of the oval tail end connection of goose of a preferred embodiment of the utility model
The structural schematic diagram of spring bonding pad.
Fig. 3 a are a kind of interior bullets of the arc spring of the oval tail end connection of goose of a preferred embodiment of the utility model
The Structure of cross section schematic diagram of spring clamping ring.
Fig. 3 b are a kind of interior bullets of the arc spring of the oval tail end connection of goose of a preferred embodiment of the utility model
The structural schematic diagram of spring clamping ring.
Fig. 4 is a kind of inside and outside bullet of the arc spring of the oval tail end connection of goose of a preferred embodiment of the utility model
Spring torsional stiffnesses test chart.
Fig. 5 is in the arc spring that a kind of oval tail end of goose of a preferred embodiment of the utility model connects by interior bullet
Spring squeezes into the diagram of the torsional stiffnesses needed for outer spring and is intended to.
Reference sign
Outer spring 1
Inner spring 2
Outer spring clamping ring 3
Inner spring clamping ring 4
Outer spring active ring 5
Inner spring active ring 6
Specific implementation mode
The utility model is related to the groups that a kind of double mass flywheel arc cluster spring, especially tail end are the oval connection of goose
Close spring.The preferred embodiment of the utility model is described in detail below with reference to attached drawing.
As shown in Figure 1, the utility model provides a kind of arc cluster spring for double mass flywheel, including outer spring
1, inner spring 2, wherein outer spring 1 includes outer spring clamping ring 3 and outer spring active ring 5, and outer spring clamping ring 3 is arranged outside
The end side of spring 1, spring wind includes inner spring clamping ring 4 and interior bullet at round dead circle, inner spring 2 at outer spring clamping ring 3
Spring active ring 6, it is dead that the spring wind ovalisation at the end side of inner spring 2, inner spring clamping ring 4 is arranged in inner spring clamping ring 4
Circle, the transverse side of inner spring clamping ring 4 by being caught in the side in the gap of outer spring clamping ring 3 by outer spring 1 and inner spring 2
Formula is connected.
As shown in Figure 2,3, outer spring 1 is similar to the connection of screw and nut, outer spring clamping ring with the connection of inner spring 2
It is wound into the dead circle of circle of 3~4 circles at 3, retains the gap of 0~0.5mm.Inner spring 2 is also in the ellipse of 3~4 circle of end winding
Shape is extremely enclosed, and transverse side is just caught in the gap that outer spring extremely encloses, and transverse diameter is more than the straight of inner spring active ring 6
Diameter, ellipse short shaft diameter are less than the diameter of inner spring active ring 6.
As shown in figure 3, the oval minor axis diameter of inner spring clamping ring 4 is less than the diameter of inner spring active ring 6, this design
For ease of inner spring 2 is packed into outer spring 1.In 2 installation process of outer spring 1 and inner spring, the ellipse of inner spring clamping ring 4 is long
The functional diameter (FD) diminution that is squeezed of axis side, the minor axis diameter increase of inner spring clamping ring 4 at this time, it is necessary to assure during the installation process
Transverse and minor axis diameter, which are both less than 1 inner ring diameter of outer spring, can just be installed into outer spring 1.It installs, inner spring connects
Adapter ring 4 is not being returned back to original size by external force duration, minor axis diameter, and inner spring transverse side is caught in outer spring connection at this time
In the gap of circle 3.
Preferably, the number of turns of 1 clamping ring of outer spring is 3~4 circles, and ring gap is 0~0.5mm.The circle of 2 clamping ring of inner spring
Number is 3~4 circles.
The end face of inner spring clamping ring 4 is not higher than the end face of outer spring clamping ring 3.The shape of inner spring 2 and outer spring 1 is
Arc, so after spring installs, inner spring 2 can not rotate in outer spring 1, therefore the slide-in of inner spring 2 will not occur
The phenomenon that outer spring 1.
As shown in figure 4, the arc spring that outer spring 1 and inner spring 2 combine, the rigidity when only outer spring 1 works are
Level-one rigidity, the rigidity when outer spring 1 and inner spring 2 work at the same time are two level rigidity；It therefore, can be by adjusting outer spring
1 and 2 length and diameter of inner spring, adjust cluster spring level-one rigidity in the present embodiment, the interface point and rigidity value of two level rigidity.
The spring filament diameter of outer spring 1 is 4.0mm in the present embodiment, and mean diameter of coil 23.5mm, free angle is 158 °, just
Degree is 2.5Nm/ °, presses and angle is 103 °.The spring filament diameter of inner spring 2 is 3.5mm, and 4 area elliptica long axis of inner spring clamping ring is straight
Diameter is 16mm, and minor axis diameter 14mm, free angle is 127 °, and stiffness is 6.6Nm/ °, presses and angle is 93 °.
When outer spring 1 compresses between 158 °~127 °, inner spring 2 is in free state；When the compression of outer spring 1 is less than
At 127 °, inner spring 2 starts to be pressurized；When cluster spring is depressed into 103 °, outer spring 1 reaches pressure and angle, cluster spring quilt
It is compressed to maximum value.
To ensure that the stabilization of size, spring are needed to carry out hot setting, i.e., first heated spring, then be pressed onto at spring with mold
In pressure and state.Inside and outside spring assembling process is realized during the setting of spring heat, and additional process is not increased.
Fig. 5 is the torque diagram squeezed into inner spring needed for outer spring.Push rod squeezes spring terminal in interior outer spring connecting pin
Face, at this time outer spring angle reduction, torque increase.When torque increases to 300Nm, outer spring is in pressure and state, continues growing
Inner spring is pressed into outer spring by pressure when torque reaches 760Nm, the torque rapid decrease shown at this time, i.e. inner spring and cunning
Enter outer spring.300Nm is the peak torque of outer spring, and 760Nm is the power being pressed into inner spring needed for outer spring.760Nm
More than spring peak torque 300Nm, so inner spring will not be squeezed into outer spring because of the operating of spring itself.
Compared with the interference fit for beating lid, the oval tail end connection of goose in the present embodiment is to prevent spring using mechanical structure
It is mobile.Under same pulling capacity standard, the design can effectively reduce the surface stress with cap contacts region spring.
The material of spring is TD SiCr, VD SiCr, VD SiCrV in the utility model.
The preferred embodiment of the utility model described in detail above.It should be appreciated that the ordinary skill people of this field
Member according to the present utility model can conceive without creative work makes many modifications and variations.Therefore, all this technology necks
Technical staff passes through logic analysis, reasoning or limited reality on the basis of existing technology according to the design of the utility model in domain
Available technical solution is tested, it all should be in the protection domain being defined in the patent claims.
Claims (10)
1. a kind of arc cluster spring of the oval tail end connection of goose, which is characterized in that including outer spring, inner spring, wherein
The outer spring includes outer spring clamping ring and outer spring active ring, and the outer spring clamping ring is arranged in the outer spring
End side, at the outer spring clamping ring spring wind at round dead circle,
The inner spring includes inner spring clamping ring and inner spring active ring, and the inner spring clamping ring is arranged in the inner spring
End side, spring wind ovalisation is extremely enclosed at the inner spring clamping ring,
The outer spring and inner spring are caught in the outer spring clamping ring by the transverse side of the inner spring clamping ring
The mode in gap is connected.
2. the arc cluster spring of the oval tail end connection of goose according to claim 1, which is characterized in that the inner spring connects
The transverse diameter of adapter ring is more than the diameter of the inner spring active ring, and the ellipse short shaft diameter of the inner spring clamping ring is small
In the diameter of the inner spring active ring.
3. the arc cluster spring of the oval tail end connection of goose according to claim 1, which is characterized in that the inner spring connects
The end face of adapter ring is not higher than the clamping ring end face of the outer spring.
4. the arc cluster spring of the oval tail end connection of goose according to claim 1, which is characterized in that the outer spring connects
The number of turns of adapter ring is 3~4 circles, and ring gap is 0~0.5mm.
5. the arc cluster spring of the oval tail end connection of goose according to claim 1, which is characterized in that the inner spring connects
The number of turns of adapter ring is 3~4 circles.
6. the arc cluster spring of the oval tail end connection of goose according to claim 1, which is characterized in that the outer spring
Spring filament diameter is 4.0mm, and mean diameter of coil 23.5mm, free angle is 158 °, and rigidity is 2.5Nm/ °, presses and angle is 103 °.
7. the arc cluster spring of the oval tail end connection of goose according to claim 1, which is characterized in that the inner spring
Spring filament diameter is 3.5mm, and inner spring clamping ring area elliptica major diameter is 16mm, minor axis diameter 14mm, and free angle is
127 °, stiffness is 6.6Nm/ °, presses and angle is 93 °.
8. the arc cluster spring of the oval tail end connection of goose according to claim 1, which is characterized in that when the outer spring
When being compressed between 158 °~127 °, the inner spring is in free state；It is described when outer spring compression is less than 127 °
Inner spring starts to be pressurized；When the cluster spring is depressed into 103 °, the outer spring reaches pressure and angle, the cluster spring
It is compressed into maximum value.
9. the arc cluster spring of the oval tail end connection of goose according to claim 1, which is characterized in that the arc combination
Spring has level-one rigidity when only outer spring works, and has two level rigidity when outer spring and inner spring work at the same time, and leads to
The length of the outer spring and inner spring is overregulated, level-one rigidity, the interface point and rigidity value of two level rigidity is adjusted.
10. the arc cluster spring of the oval tail end connection of goose according to claim 1, which is characterized in that the arc group
The material for closing spring is TD SiCr, or VD SiCr, or VD SiCrV.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721734793.5U CN207814290U (en) | 2017-12-13 | 2017-12-13 | A kind of arc cluster spring of the oval tail end connection of goose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721734793.5U CN207814290U (en) | 2017-12-13 | 2017-12-13 | A kind of arc cluster spring of the oval tail end connection of goose |
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| Publication Number | Publication Date |
|---|---|
| CN207814290U true CN207814290U (en) | 2018-09-04 |
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ID=63332159
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721734793.5U Active CN207814290U (en) | 2017-12-13 | 2017-12-13 | A kind of arc cluster spring of the oval tail end connection of goose |
Country Status (1)
| Country | Link |
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| CN (1) | CN207814290U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882903A (en) * | 2017-12-13 | 2018-04-06 | 毕克礼斯精密部件（太仓）有限公司 | A kind of arc cluster spring of the avette tail end connection of goose |
-
2017
- 2017-12-13 CN CN201721734793.5U patent/CN207814290U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882903A (en) * | 2017-12-13 | 2018-04-06 | 毕克礼斯精密部件（太仓）有限公司 | A kind of arc cluster spring of the avette tail end connection of goose |
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