CN204477146U - The offset frequency composite spring structures such as variation rigidity - Google Patents
The offset frequency composite spring structures such as variation rigidity Download PDFInfo
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- CN204477146U CN204477146U CN201520006755.2U CN201520006755U CN204477146U CN 204477146 U CN204477146 U CN 204477146U CN 201520006755 U CN201520006755 U CN 201520006755U CN 204477146 U CN204477146 U CN 204477146U
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- variation rigidity
- buffer stopper
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Abstract
The utility model discloses the offset frequency composite spring structures such as a kind of variation rigidity, it comprises main spring, auxiliary spring and buffer stopper, and described main spring two ends are bent upwards, be connected with auxiliary spring in the middle part of it, and described buffer stopper arranges the two ends of described auxiliary spring.The rigidity sudden change and the auxiliary spring that solve two stage stiffness multiple laminated spring participate in the problem that carrying produces noise; Obtain desirable nonlinear elasticity characteristic, ensure that passenger vehicle scratching of leaf spring under any load diminishes, offset frequency change is little, substantially achieves and is using the offset frequencys such as interval variation rigidity.
Description
Technical field
The utility model relates to field of automobile, is specifically related to the offset frequency composite spring structures such as a kind of variation rigidity.
Background technique
Leaf spring bears normal load, becomes the elastic element of suspension system.General leaf spring, if do not have special structural measure, its nonlinear degree is very little, can regard as linear, and namely load linearly changes distortion, and namely rigidity is constant.Hookean spring is as the elastic element of suspension system, and its major defect is that the natural frequency of vibration of system changes when after the change of spring carrying capacity.If automobile is empty, fully loaded load difference is very large, under being just difficult to ensure various loaded-up condition, all obtain good smoothness (ride comfort).Automobile generally all leaves larger overload capacity when designing, and for ensureing the reliability of spring, general design rigidity is comparatively large, and cause empty fully loaded smoothness difference very large like this, time unloaded, offset frequency is much larger than 2, and smoothness is poor especially.
When ensureing that load is different, offset frequency is identical, and suspension system must be allowed to present certain nonlinear elasticity characteristic.
The compound leaf spring of current domestic lorry many employings two stage stiffness, passenger vehicle many employings bladder air suspension, to reaching nonlinear suspension flexibility characteristic.
The compound leaf spring of two stage stiffness is two sections of broken lines, and in use, offset frequency has sudden change, and during the contact of major-minor spring, noise is larger.The roll stiffness of air suspension is little, and rear suspension unsprung weight is comparatively large, complex structure, and technique assembly process is also complicated, and quality control is difficult, buying in early stage and later maintenance cost all higher.
Model utility content
The offset frequency composite spring structures such as the utility model overcomes the deficiencies in the prior art, the variation rigidity provide a kind of and can adjust empty fully loaded elastic characteristic, improving ride comfort.
Consider the problems referred to above of prior art, an aspect disclosed in the utility model, the utility model by the following technical solutions:
The offset frequency composite spring structures such as a kind of variation rigidity, it comprises main spring, auxiliary spring and buffer stopper, and described main spring two ends are bent upwards, be connected with auxiliary spring in the middle part of it, and described buffer stopper arranges the two ends of described auxiliary spring.
In order to realize the utility model better, further technological scheme is:
According to an embodiment of the present utility model, described buffer stopper is damping rubber block.
Compared with prior art, one of the beneficial effects of the utility model are:
The offset frequency composite spring structures such as a kind of variation rigidity of the present utility model, it adopts two stage stiffness leaf spring and damping rubber block to be combined into the offset frequency composite spring assemblies such as a kind of novel variation rigidity, its structure is simple, cost performance is high, main spring work is only had when zero load, after load increases, main spring distortion increases, at this moment damping rubber block contacts with main spring, the reaction force of buffer stopper passes to auxiliary spring, major-minor spring bearing load together with damping rubber block, when buffer stopper can not compress, the rigidity of leaf spring reaches maximum; By adjustment major-minor spring and the rigidity ratio of buffer stopper, make car load under various operating mode, load, suspension to scratch change substantially constant, the offset frequency composite spring assemblies such as composition; Extensively using at automobile especially passenger car field, being greatly improved making the driving comfortable type of automobile.
Accompanying drawing explanation
In order to clearer explanation present specification embodiment or technological scheme of the prior art, below the accompanying drawing used required in the description to embodiment or prior art is briefly described, apparently, the accompanying drawing that the following describes is only the reference to some embodiments in present specification, for those skilled in the art, when not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 shows according to offset frequency composite spring structural representations in a free state such as the variation rigidity of the utility model embodiment.
Fig. 2 shows the structural representation of the offset frequency composite springs such as variation rigidity under complete vehicle curb condition according to the utility model embodiment.
Fig. 3 shows according to offset frequency composite spring structural representations in a fully loaded state such as the variation rigidity of the utility model embodiment.
Wherein, the name corresponding to the reference character in accompanying drawing is called:
The main spring of 1-, 2-auxiliary spring, 3-buffer stopper.
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail, but mode of execution of the present utility model is not limited thereto.
As shown in Figure 1, Figure 2 and Figure 3, the offset frequency composite spring structures such as a kind of variation rigidity, it comprises main spring 1, auxiliary spring 2 and buffer stopper 3, and described main spring 1 two ends are bent upwards, be connected with auxiliary spring 2 in the middle part of it, and described buffer stopper 3 arranges the two ends of described auxiliary spring 2.Described buffer stopper 3 preferred rubber buffer stopper.
In Fig. 1, composite spring assembly is in free state; In Fig. 2, composite spring is under empty wagons operating mode, and main spring 1 starts to contact with auxiliary spring 2; In Fig. 3, composite spring under full-load conditions, and main spring 1 fully contacts with auxiliary spring 2, and buffer stopper 3 is compressed to the limit, and complex stiffness is maximum.
The advantage of the NEW TYPE OF COMPOSITE leaf spring that above embodiment describes is as follows:
1. solve the rigidity mutation problems of two stage stiffness multiple laminated spring;
2. solve noise problem during auxiliary spring 2 participation carrying;
3. obtain desirable nonlinear elasticity characteristic, guarantee that passenger vehicle scratching of leaf spring under any load (semi-load, fully loaded, overload) diminishes, offset frequency change is little, and basic realization is using the offset frequencys such as interval variation rigidity.
4. manufacturing process is simple, and cost is low, and cost performance is high.
Particularly, under the load of identical operating mode, this NEW TYPE OF COMPOSITE leaf spring and etc. the contrast of rigidity leaf spring special parameter as follows, the car load offset frequency of employing NEW TYPE OF COMPOSITE leaf spring is between 1.844-1.826, and the car load offset frequency of the rigidity leaf springs such as employing is between 2.374-1.661.Adopt the car load of two stage stiffness leaf spring, offset frequency is between 2.077-1.661.
Batch through two years of 9 meters and 11 meters two kinds of city bus vehicles uses, respond well, drive comfortable, part reliability is high, no longer occur that peak overload or Uneven road impact the problem of the leaf spring part caused, also do not occur the event damaging passenger because of excessive vibration.
The embodiment of another design:
Its elastic characteristic curve load and the relation of scratching change) as follows:
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiment, identical similar portion cross-reference between each embodiment.
Spoken of in this manual " embodiment ", " another embodiment ", " embodiment ", etc., refer to the specific features, structure or the feature that describe in conjunction with this embodiment and be included at least one embodiment of the application's generality description.Multiple place occurs that statement of the same race is not necessarily refer to same embodiment in the description.Furthermore, when describing specific features, structure or a feature in conjunction with any embodiment, what advocate is also drop in scope of the present utility model to realize this feature, structure or feature in conjunction with other embodiments.
Although be described the utility model with reference to multiple explanatory embodiment of the present utility model here, but, should be appreciated that, those skilled in the art can design a lot of other amendment and mode of execution, these amendments and mode of execution will drop within spirit disclosed in the present application and spirit.More particularly, in the scope of and claim open in the application, multiple modification and improvement can be carried out to the constituent elements of subject combination layout and/or layout.Except the modification of carrying out constituent elements and/or layout is with except improvement, to those skilled in the art, other purposes also will be obvious.
Claims (2)
1. the offset frequency composite spring structure such as variation rigidity, it is characterized in that it comprises main spring (1), auxiliary spring (2) and buffer stopper (3), two ends are bent upwards described main spring (1), be connected with auxiliary spring (2) in the middle part of it, and described buffer stopper (3) arranges the two ends of described auxiliary spring (2).
2. the offset frequency composite spring structure such as variation rigidity according to claim 1, is characterized in that described buffer stopper (3) is damping rubber block.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520006755.2U CN204477146U (en) | 2015-01-06 | 2015-01-06 | The offset frequency composite spring structures such as variation rigidity |
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| CN201520006755.2U CN204477146U (en) | 2015-01-06 | 2015-01-06 | The offset frequency composite spring structures such as variation rigidity |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696403A (en) * | 2015-01-06 | 2015-06-10 | 成都客车股份有限公司 | Composite spring structure realizing equal offset frequency of variable stiffness |
| CN106545609A (en) * | 2017-01-12 | 2017-03-29 | 山东理工大学 | The simulation calculation method of the offset frequency progressive rate rigidity of plate spring characteristic such as two-stage auxiliary spring formula is non- |
| CN106585310A (en) * | 2017-01-12 | 2017-04-26 | 山东理工大学 | Contact load coupling design method of two-stage auxiliary spring type nonequivalent off frequency gradual change rigid plate spring |
| CN106682339A (en) * | 2017-01-03 | 2017-05-17 | 山东理工大学 | Simulation calculation method for non-equal offset frequency first grade variable stiffness leaf spring root maximum stress |
| CN106838086A (en) * | 2017-01-03 | 2017-06-13 | 山东理工大学 | The contact load adaptation design method of the offset frequency first-order gradient rigidity plate spring suspension brackets such as non- |
-
2015
- 2015-01-06 CN CN201520006755.2U patent/CN204477146U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696403A (en) * | 2015-01-06 | 2015-06-10 | 成都客车股份有限公司 | Composite spring structure realizing equal offset frequency of variable stiffness |
| CN106682339A (en) * | 2017-01-03 | 2017-05-17 | 山东理工大学 | Simulation calculation method for non-equal offset frequency first grade variable stiffness leaf spring root maximum stress |
| CN106838086A (en) * | 2017-01-03 | 2017-06-13 | 山东理工大学 | The contact load adaptation design method of the offset frequency first-order gradient rigidity plate spring suspension brackets such as non- |
| CN106545609A (en) * | 2017-01-12 | 2017-03-29 | 山东理工大学 | The simulation calculation method of the offset frequency progressive rate rigidity of plate spring characteristic such as two-stage auxiliary spring formula is non- |
| CN106585310A (en) * | 2017-01-12 | 2017-04-26 | 山东理工大学 | Contact load coupling design method of two-stage auxiliary spring type nonequivalent off frequency gradual change rigid plate spring |
| CN106545609B (en) * | 2017-01-12 | 2018-05-25 | 山东理工大学 | The simulation calculation method for the offset frequencys progressive rate rigidity of plate spring characteristics such as two-stage auxiliary spring formula is non- |
| CN106585310B (en) * | 2017-01-12 | 2018-11-02 | 山东理工大学 | The contact load matched design method for the offset frequencys progressive rate leaf springs such as two-stage auxiliary spring formula is non- |
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