CN103057369B - Arrangement structure of suspension limit bumper block and vehicle suspension system - Google Patents
Arrangement structure of suspension limit bumper block and vehicle suspension system Download PDFInfo
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- CN103057369B CN103057369B CN201110324604.8A CN201110324604A CN103057369B CN 103057369 B CN103057369 B CN 103057369B CN 201110324604 A CN201110324604 A CN 201110324604A CN 103057369 B CN103057369 B CN 103057369B
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- bumper block
- limit bumper
- arrangement structure
- limiting buffer
- suspension
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Abstract
An arrangement structure of a suspension limit bumper block comprises a first limit bumper block (1) and a second limit bumper block (3), and the first limit bumper block (1) and the second limit bumper block (3) correspond to a steel plate spring (4). The second limit bumper block is arranged between the first limit bumper block (1) and a steel plate spring lifting lug which corresponds to the second limit bumper block. Besides, the invention further provides a vehicle suspension system. The arrangement structure of the suspension limit bumper block adds the second limit bumper block in a wave crest area of the deformation of the steel plate spring, limits the deformation scope of the steel plate spring, enables left braking force and right braking force to be balanced, effectively solves or remits a problem of braking deviation, improves safety of a whole vehicle, obviously improves ride comfort and comfort of the whole vehicle and effectively protects service life of suspension system parts. Besides, the arrangement structure of the suspension limit bumper block is simple in structure and low in cost and possesses good technology application value.
Description
Technical field
The present invention relates to a kind of arrangement structure of suspension limit bumper block.In addition, the invention still further relates to a kind of automobile suspension system.
Background technology
Braking deviation is a kind of abnormal brake condition of danger close, and the reason that braking deviation occurs has a lot.With regard to automobile suspension system, carry out force analysis when braking deviation, the situation that braking deviation occurs usually is the stressed difference of left and right suspension, and the reason that this thing happens is that different distortion occurs left and right steel spring, cause load-carrying to offset, cause the generation of braking deviation situation.
Current big-and-middle-sized vehicle, what such as the suspension system of passenger vehicle, medium-sized and heavy duty truck etc. generally adopted is dependent suspension steel spring structure, and it mainly comprises steel spring, shock absorber, guiding mechanism and limiting buffer block etc.What generally apply now is single limiting buffer block; the Main Function of limiting buffer block is poor in road conditions or overload travels; prevent impact load from causing steel spring to transship; thus protection shock absorber; keep the reasonable clearance between wheel and wheel cover and between front axle tie rod and driving engine; improve the ride comfort of car load, make vehicle have good traveling comfort.
But the arrangement structure of the single limiting buffer block of above-mentioned layout can not prevent braking deviation problem.Notoriously, suspension system has very large impact to the riding comfort of vehicle, the service life of parts, road-holding property, safety, production efficiency and maintenance cost etc.The quality of automobile suspension system arrangement structure, especially has vital effect to vehicle safety.As mentioned above, braking deviation problem is normally caused by both sides spring deflection difference, because steel spring needs to produce elastic deformation with cushion load, therefore can not carry out rigid constraint to limit its distortion to steel spring.But in vehicle traveling process, road conditions are changeable, add both sides steel spring elastic deformation coefficient is not quite identical due to reasons such as production, installations, and therefore automobile both sides spring deflection is inconsistent almost cannot avoid.In this case, if distortion will be prevented seriously inconsistent and cause braking deviation problem, need to carry out certain distortion restriction to both sides steel spring, to make the inconsistent situation of distortion remain in certain limit, avoid the generation of braking deviation problem.
In this case, as the limiting buffer block of spring deflection locating part, it not only should play the basic role of buffering steel spring overload, the distortion more tackling steel spring plays flexible guide restriction to a certain extent, maintains inconsistent for the distortion of both sides steel spring in certain limit.But the arrangement structure of existing single bump rubber obviously can not play this effect, it is helpless to solve or alleviate braking deviation problem, more has influence on the safety performance of automobile suspension system to a certain extent.
Because the above-mentioned defect of prior art, need to provide a kind of novel arrangement structure of suspension limit bumper block.
Summary of the invention
Technical matters to be solved by this invention to provide a kind of arrangement structure of suspension limit bumper block, this arrangement structure of suspension limit bumper block can not only prevent steel spring overload, shock absorbing load, and guiding restriction can be played to the distortion of steel spring, thus effectively prevent or alleviate braking deviation phenomenon.
On the basis of above-mentioned technical matters, the further technical matters to be solved of the present invention is to provide a kind of automobile suspension system, and this automobile suspension system effectively can prevent or alleviate braking deviation phenomenon, thus improves the safety of vehicle.
In order to solve the problems of the technologies described above, the invention provides a kind of arrangement structure of suspension limit bumper block, comprise the first limiting buffer block arranged corresponding to steel spring, described arrangement structure of suspension limit bumper block also comprises the second limiting buffer block, and this second limiting buffer block is arranged between the hinge of leaf spring of described first limiting buffer block and this first limiting buffer block close.
Preferably, described second limiting buffer block is arranged corresponding to the deformation wave peak position of described steel spring.
Preferably, the setting position of described second limiting buffer block is lower than described first limiting buffer block.
Particularly, described second limiting buffer block is installed on chassis side rail by mounting bracket.
Selectively, described first limiting buffer block is arranged on the shock absorber installing bracket of shock absorber.
Preferably, described second limiting buffer block is hollow structure.
On the basis of technique scheme, the present invention also provides a kind of automobile suspension system, and this automobile suspension system has above-mentioned suspension limiting stopper arrangement structure of the present invention.
Pass through technique scheme; arrangement structure of suspension limit bumper block of the present invention adds the second limiting buffer block in the peak regions of spring deflection; thus limit the deformation range of steel spring; make left and right braking force balanced; effectively solve or alleviate the problem of braking deviation; thus improve the safety of car load, significantly improve ride comfort and the traveling comfort of car load, effectively protect the service life of suspension system parts.In addition, structure of the present invention is simple, with low cost, has good technology using value.
Other features and advantages of the present invention are described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Following accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification sheets, and itself and following detailed description of the invention one are used from explanation the present invention, but protection scope of the present invention is not limited to following the drawings and the specific embodiments.In the accompanying drawings:
Fig. 1 is the schematic diagram of the arrangement structure of suspension limit bumper block of the specific embodiment of the invention.
Fig. 2 is the deformation analysis contrast schematic diagram of suspension limiting buffer arrangement structure.
Description of reference numerals:
1 first limiting buffer block; 2 shock absorbers;
3 second limiting buffer blocks; 4 steel springs;
5 chassis side raiies.
Detailed description of the invention
Be described in detail to the specific embodiment of the present invention below in conjunction with accompanying drawing, should be understood that, detailed description of the invention described herein is only for instruction and explanation of the present invention, and protection scope of the present invention is not limited to following detailed description of the invention.
Fig. 1 shows the schematic diagram of the arrangement structure of suspension limit bumper block of the specific embodiment of the invention.In figure, the first limiting buffer block 1 arranges on damper bracket, this is the limiting buffer block that existing big-and-middle-sized vehicle is generally arranged, the two ends hanger of steel spring 4 is arranged on chassis side rail 5 by plate spring lifting lug frame, shock absorber 2 is arranged near steel spring 4, and it mainly plays cushion load with the effect of vibration damping.
Said structure is the conventional arrangement structure on existing vehicle, when adopting above-mentioned single limiting buffer block, shown in Figure 2, in figure, dotted line represents the variation tendency of vehicle stressed rear distortion of steel spring 4 when braking, as can see from Figure 2, when steel spring 4 deforms being subject to impact load, steel spring 4 should be take axletree as fulcrum generation symmetric deformation under normal circumstances, but owing to being subject to the restriction of the first limiting buffer block 1, make steel spring 4 that the distortion of sine wave shape shown in dotted lines in Figure 2 occur.In this case, larger deformation distance is there is due to the steel spring under normal loaded state and between the crest of the deformed sine wave shape on the right side of Fig. 2, therefore the possibility that the spring deflection of vehicle both sides is inconsistent increases greatly, such as when side steel spring is subject to greater impact load and the impact load that opposite side steel spring is subject to is little, now be subject to the distortion that the sine wave shape shown in Fig. 2 dotted line occurs the larger steel spring of impact load 4, and the steel spring 4 of opposite side is little owing to being out of shape, the steel spring 4 of this opposite side can not encounter the first limiting buffer block 1 substantially, thus the distortion of the sine wave shape shown in Fig. 2 can not be there is, and just there is normal slight symmetric deformation, now the spring deflection of vehicle both sides is inconsistent, very easily there is running out the way problem.
For this reason, arrangement structure of suspension limit bumper block of the present invention also comprises the second limiting buffer block 3, this second limiting buffer block 3 is arranged between the hinge of leaf spring of described first limiting buffer block 1 and this first limiting buffer block 1 close, preferably, the setting position of this second limiting buffer block 3, lower than described first limiting buffer block 1, more effectively can limit the deformation range of steel spring like this.
Preferably, this second limiting buffer block 3 is arranged corresponding to the deformation wave peak position of described steel spring 4, the better effects if of the guiding restriction spring deflection that this setting position plays.
Second limiting buffer block 3 can adopt various ways to install, and selectively, as shown in Figure 1, it can be installed on chassis side rail 5 by mounting bracket.Certainly, it also can adopt other form to install, such as can by a longer support installing on the stationary housing of shock absorber 2, and this can select according to installation situation for those skilled in the art.
Shown in Figure 2, preferably, the second limiting buffer block 3 has hollow structure, and the second limiting buffer block 3 of this hollow structure can play better buffer action, make the second limiting buffer block 3 more soft smooth-going when guiding restriction steel spring 4 to be out of shape, obvious impact can not occur.
Shown in Figure 2, in figure, solid line is the variation tendency line of steel spring 4 stress deformation when adopting two limiting buffer block rear vehicle braking.As can be seen from figure obviously, compared with the steel spring stress deformation trend of the single limiting buffer block structure shown in dotted line, after adding two limiting buffer block, the distortion of steel spring 4 obtains obvious suppression, even if the steel spring load that is subject in vehicle both sides is inconsistent like this, but owing to having the restriction of the second limiting buffer block 3, vehicle both sides steel spring significantly can reduce for the scope of distortion, even if the impact that side steel spring is subject to or torsion loads larger, compared with the steel spring of opposite side, it also can only continue in the region corresponding to the first limiting buffer block 1 to be upwards out of shape, and its amplitude of deformation also will be subject to the spacing of the first limiting buffer block 1, therefore the degree that both sides spring deflection is inconsistent is effectively suppressed, thus make two ends, car load left and right stress equalization, effective solution or alleviate the problem of braking deviation.
Arrangement structure of suspension limit bumper block of the present invention is mainly applicable to large and medium-sized vehicle, such as passenger vehicle, truck etc., but this Applicable scope is not absolute, as long as application purpose according to the invention, suspension limiting buffer arrangement structure of the present invention goes for the various vehicles needing to adopt this arrangement structure.
For this reason, on the basis of technique scheme, the present invention also provides a kind of automobile suspension system, and this automobile suspension system adopts above-mentioned arrangement structure of suspension limit bumper block of the present invention.
As can be seen from upper description, the present invention applies two limiting buffer block structure and solves or alleviate braking deviation problem, it passes through the force analysis of suspension system and the deformation analysis of steel spring, in the peak regions of spring deflection (namely above-mentioned first limiting buffer block 1 and near this first limiting buffer block 1 hinge of leaf spring between) add the second limiting buffer block 3, thus limit the deformation range of steel spring, make left and right braking force balanced, effectively solve or alleviate the problem of braking deviation, thus improve the safety of car load, significantly improve ride comfort and the traveling comfort of car load, effectively protect the service life of components of suspension systems.In addition, structure of the present invention is simple, with low cost, has good technology using value.
Below the preferred embodiment of the present invention is described in detail by reference to the accompanying drawings; but; the present invention is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition, each the concrete technical characteristic described in above-mentioned detailed description of the invention, in reconcilable situation, can be combined by any suitable mode.In order to avoid unnecessary repetition, the present invention illustrates no longer separately to various possible array mode.
In addition, also can carry out combination in any between various different embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (7)
1. arrangement structure of suspension limit bumper block, comprise the first limiting buffer block (1) arranged corresponding to steel spring (4), it is characterized in that, described arrangement structure of suspension limit bumper block also comprises the second limiting buffer block (3), and this second limiting buffer block is arranged between the hinge of leaf spring of described first limiting buffer block (1) and this first limiting buffer block close.
2. arrangement structure of suspension limit bumper block according to claim 1, is characterized in that, described second limiting buffer block (3) is arranged corresponding to the deformation wave peak position of described steel spring (4).
3. arrangement structure of suspension limit bumper block according to claim 1, is characterized in that, the setting position of described second limiting buffer block (3) is lower than described first limiting buffer block (1).
4. arrangement structure of suspension limit bumper block according to claim 1, is characterized in that, described second limiting buffer block (3) is installed on chassis side rail (5) by mounting bracket.
5. arrangement structure of suspension limit bumper block according to claim 1, is characterized in that, described first limiting buffer block (1) is arranged on the shock absorber installing bracket of shock absorber (2).
6. arrangement structure of suspension limit bumper block according to any one of claim 1 to 5, is characterized in that, described second limiting buffer block (3) is hollow structure.
7. automobile suspension system, is characterized in that, this automobile suspension system has arrangement structure of suspension limit bumper block according to any one of claim 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110324604.8A CN103057369B (en) | 2011-10-24 | 2011-10-24 | Arrangement structure of suspension limit bumper block and vehicle suspension system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110324604.8A CN103057369B (en) | 2011-10-24 | 2011-10-24 | Arrangement structure of suspension limit bumper block and vehicle suspension system |
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| Publication Number | Publication Date |
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| CN103057369A CN103057369A (en) | 2013-04-24 |
| CN103057369B true CN103057369B (en) | 2015-02-18 |
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| CN201110324604.8A Active CN103057369B (en) | 2011-10-24 | 2011-10-24 | Arrangement structure of suspension limit bumper block and vehicle suspension system |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106295087B (en) * | 2016-10-18 | 2019-03-26 | 山东理工大学 | The non-equal structures in end lack the design method of piece root reinforced type leaf spring limit amount of deflection |
| CN109515090A (en) * | 2018-11-12 | 2019-03-26 | 浙江中车电车有限公司 | A kind of few-leaf-spring suspension system |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| AU713620B2 (en) * | 1995-10-11 | 1999-12-09 | Terrapid Technologies Cc | A vehicle |
| WO2006138750A1 (en) * | 2005-06-22 | 2006-12-28 | Richard Bruce Cochrane | Independent suspention system |
| CN2834977Y (en) * | 2005-11-11 | 2006-11-08 | 北汽福田汽车股份有限公司 | An automobile suspension buffer block and vehicle employed the same |
| US20070187919A1 (en) * | 2006-02-13 | 2007-08-16 | Textron Inc. | Height adjustment blocks for leaf spring suspension |
| CN201046656Y (en) * | 2007-06-21 | 2008-04-16 | 北京阳光之路特种车辆技术有限公司 | Liftable automobile resilient suspension apparatus |
| CN202294128U (en) * | 2011-10-24 | 2012-07-04 | 北汽福田汽车股份有限公司 | Suspension frame limit buffer stopper arrangement structure and vehicle suspension frame system |
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