CN206633743U - Spring link for the suspension system of vehicle - Google Patents

Abstract

A kind of spring link of the suspension system for vehicle is the utility model is related to, the spring link includes：Bottom；Paired side wall, spring link includes the first section and the second section along longitudinal direction, paired side wall includes the paired the first side wall part in the first section and the paired second sidewall part in the second section, the shape design of the first side wall part into making one part form primary deformation zone, primary deformation zone be when the first power is added in first section along direction from the top down or vice versa in whole spring link the maximum region of caused deflection；For the shape design of second sidewall part into making one part form second deformation zone, second deformation zone is the region of the caused deflection maximum in whole spring link when the second power is applied on spring link along longitudinal direction.By according to spring link of the present utility model, by forming two independent deformed areas, corresponding deflection can be more accurately adjusted for regional.

Description

Spring link for the suspension system of vehicle

Technical field

A kind of spring link of the suspension system for vehicle is the utility model is related to, especially including bottom and from bottom The integral type spring link of the paired side wall upwardly extended.

Background technology

Suspension system in vehicle refers to the whole supporting guiding system of connecting vehicle frame (or vehicle body) and wheel, so as to The various power that road surface is applied to wheel pass to vehicle frame (or vehicle body).Meanwhile suspension system also needs to play mitigation impact, declined Vibration damping moves, makes the good effect of the seating ride comfort that is more comfortable and ensuring vehicle of vehicle.In addition, suspension system typically should also Ensure that vehicle has good control stability.

According to the difference of the guiding mechanism of vehicle, suspension system can be divided into independent suspension, rigid axle suspension.Independent suspension is Wheel per side is all to be suspended on individually through resilient suspension below vehicle frame or vehicle body.The advantages of independent suspension is：Matter Amount is light, reduces the impact that vehicle body is subject to, and improve the traction of wheel；The small relatively slinky spring of rigidity can be used, is improved The comfortableness of automobile；Engine location can be reduced, centre of gravity of vehicle is also reduced, so as to improve the driving stability of automobile Property；Left and right wheelses are individually beated, mutually incoherent, can reduce the inclination and vibrations of vehicle body.

However, there is the shortcomings that complicated, cost is high, inconvenient maintenance for independent suspension.Modern Car is mostly to use Independent suspension, by the difference of its structure type, independent suspension can be divided into again wish-bone arm type, trailing arm type, multi link formula, candle formula and McPherson strut etc..Although the structure type and composition of suspension system are had nothing in common with each other, generally by flexible member, vibration damping Device, guiding mechanism etc. form.

The flexible member commonly used on vehicle includes leaf spring, helical spring, torsion-bar spring and gas spring, wherein, spiral shell Rotation spring is widely used in independent suspension.Effect of the shock absorber in vehicle is to decay to pass through the bullet in suspension by wheel rapidly Property element pass to the shock and vibration of vehicle body, improve the ride comfort of vehicle traveling.Generally, shock absorber in suspension systems with bullet Property element, such as helical spring type are installed in parallel.

Especially in multi link formula independent suspension, at least a spring link is used to support helical spring and/or vibration damping Device.The spring link can be made up of (mono-hull formula or more case types) spring link housing, and it has the side wheel of generally U-shaped It is wide.

A kind of for example, monocoque type of wheel suspension being formed by metallic plate, for motor vehicle as known to CN103338949 Spring link.The spring link has the first end section for being used to be connected on chassis crossrail, for being connected on wheel side The second end section that connects and section is widened for support spring, this is widened section and is arranged between two end segments simultaneously And a groove is limited with side wall protruding upward.The document especially suggested to be formed in section in widening for spring link Spire is as spring base, and formed with the bonding pad for connecting damper between spire and second end section Section.

A kind of in another example spring link similar to above-mentioned document as known to CN104203607.In order to realize it is relatively small Component weight and high part rigidity and optimal wheel suspension in terms of load are realized while favourable manufacturing cost, The document provides forms the surface portion of inside modification in side wall, the whole length of the longitudinal edge of the surface portion in the surface portion Spaced on degree, thus widening section has the cross section profile of C-shape；Formed and used between spring base and second end section In the jointing of connection damper.

, not only can be by from vertical direction, example during the actual motion of vehicle for various spring links The helical spring and/or the power of shock absorber being such as supported on spring link, and also suffer from the impact on longitudinal direction Power (for example, the longitudinal force from wheel in vehicle travel process).These power are often the high load forces changed, are connected in spring Bar do not have it is enough it is rigid in the case of can cause its deformation.

However, in current existing spring link, only exist a deformed region or more precisely need will be whole Individual spring link resists the high load forces from vertical direction and from longitudinal direction as deformed region simultaneously.In this feelings Under condition, the practical distortion region in spring link can not accurately control, and due to the superposition of the load from multiple directions, easily So that spring link is deformed in an undesired manner, so as to produce the component to be added to strengthen the need of the spring link Ask, but this causes the increase of cost and weight again.

Therefore, existing in the suspension of vehicle can accurately control by the deformation after load but cost and again to a kind of Amount and the demand of increased spring link.

Utility model content

A kind of spring link of the suspension system for vehicle is the utility model is related to, the spring link includes：Bottom；With And paired side wall, spring link include the first section and the second section along longitudinal direction, paired side wall is included in the first section Paired the first side wall part and the paired second sidewall part in the second section, the shape structure of the first side wall part Cause to make one part to form primary deformation zone, primary deformation zone is that the first power is being added into described the along direction from the top down When in one section in whole spring link the maximum region of caused deflection；The shape design of second sidewall part is into making it A part forms second deformation zone, and second deformation zone is in whole spring when the second power is applied on spring link along longitudinal direction The maximum region of caused deflection in connecting rod.Carried out, can be directed to each by the way that deformation is divided in two single regions Region more accurately adjusts corresponding deflection, is made so that the structural strength of spring link meets design needs without increasing Cause this.

Advantageously, the spacing between paired the first side wall part reduces along direction from the top down, and/or Spacing between the paired second sidewall part of person reduces along direction from the top down.Between paired sidewall sections This tapered spacing can make it that sidewall sections are outwardly opened or pivoted when by power, so as to produce desired deflection.

On the one hand, the first side wall part includes the first upper sidewall portions and the first lower sidewall portion, the first A lower side wall portion Point extend upwardly from the bottom portion, and the first upper sidewall portions from the first lower sidewall portion upwards and relative to the first A lower side wall portion Divide and extend radially outward direction, thus, primary deformation zone includes the first upper sidewall portions, and the first upper sidewall portions are configured to Deformed in the presence of the first power in a manner of moving out away from each other.

On the other hand, second sidewall part includes the second upper sidewall portions and the second lower sidewall portion, the second lower wall Part extend upwardly from the bottom portion, and the second upper sidewall portions from the second lower sidewall portion upwards and relative to the second lower wall Partially radially outwardly extend, thus, second deformation zone includes the second upper sidewall portions, wherein, the second upper sidewall portions construction Deformed into the presence of the second power in a manner of moving out away from each other, and spring link can be at its second section around footpath Pivoted to axis.In other words, the sidewall sections of the second section can realize the pivot in both direction, to reach desired deformation Amount.

Advantageously, the first lower sidewall portion can be extended vertically upward from bottom or obliquely outward upwardly extended. Similarly, the second lower sidewall portion can be extended vertically upward from bottom or obliquely outward upwardly extended.It is equally advantageous Ground, first/second upper sidewall portions are extended in a manner of outside linear tilt from corresponding first/second lower sidewall portion. Such sidewall sections shape can be advantageous to it and desired deflection is produced when by power, such as smoothly radially outward beat Open.

Preferably, the first upper sidewall portions are extended with arcuate shape from the first lower sidewall portion, the curvature of arcuate shape It is centrally located between paired the first side wall part.Preferably, also, the second upper sidewall portions with arcuate shape from second downside Wall part is extended, and the center of curvature of arcuate shape is between paired second sidewall part or corresponding each second sidewall portion / outer.The stress that this arc-shaped curved surface can cause more relaxes and uniformly, therefore desirable for deformation curve realize deflection.

It is further contemplated that the first upper sidewall portions include different from each other multiple sections of curvature along its short transverse, with more The curve deformed when accurately adjusting stress.

In addition, the first section and the second section of the spring link also include respectively from the top of the first side wall part The flange part that the top water level land of portion and second sidewall part extends outward.Spring link when flange part is advantageous to mitigate stress Load state.

More preferably, spring link includes the first longitudinal direction end away from the second section and the second longitudinal direction close to the second section End, the second power are applied on spring link on first longitudinal direction end edge towards the direction of second longitudinal direction end, wherein, first Section is arranged to than the second section closer to first longitudinal direction end.

Particularly, the first lower sidewall portion can be configured to make the first power be applied to first via the first lower sidewall portion Duan Shang.Now, desired deformation is presented by being pivoted out opening in the first upper sidewall portions, and the change of the first lower sidewall portion Shape amount is then less than the deflection of the first upper sidewall portions, to avoid the undesirable situation such as bottom break from occurring.

In suspension systems, spring link is arranged between wheel and the axle carrier of the vehicle in the vertical, and first Longitudinal end is positioned at the wheel side, and second longitudinal direction end is positioned at the axle carrier side.

Advantageously, the first section is configured to the shock absorber and/or spring of supporting suspension system, and thus, the first section can be with Receive the first power with vertical direction component from shock absorber and/or spring.First section and shock absorber and/or spring it Between tie point can be for example on the first side wall part.Particularly advantageously, the first power is applied to first via tie point In lower sidewall portion and close to the opening position of the first upper sidewall portions, wherein, primary deformation zone includes the first upper sidewall portions And the first part above tie point in lower sidewall portion.

Particularly advantageously, spring link is made up of sheet metal of the yield strength more than 650 MPas, it is expected so as to meet Structural strength.

In spring link radially, the spacing between paired second sidewall part is equal to or less than the first paired side Spacing between wall part.Thus, it is possible to realize power in the first side wall part and second sidewall part in whole spring link Between expectation distribution.

Advantageously, the first lower sidewall portion may be configured to receive the first power, with enable the first upper sidewall portions relative to First lower sidewall portion radially outward pivots.Second sidewall part may be configured to cause second when spring link receives the second power Upper sidewall portions can radially outward pivot relative to the first lower sidewall portion.

Particularly, the direction of the second power applied is parallel with the central axial direction of spring link or horizontal stroke with vehicle It is parallel to plane.

Suitably, paired side wall can be along the curved surface for being longitudinally formed to include same curvature of spring link or including more The curved surface of individual different curvature, to cause the deflection of spring link to be distributed in the desired manner on its whole longitudinal length.

By reading following detailed description, these and various other feature and advantage will be apparent.

Brief description of the drawings

Consider the detailed description of multiple embodiments of the present utility model below in connection with drawings described below, can be more fully understood from The utility model, in the accompanying drawings：

Fig. 1 shows the side schematic view of the spring link according to one embodiment of the present utility model；

Fig. 2 shows the stereogram of the spring link according to one embodiment of the present utility model；And

Fig. 3 shows the schematic top plan view of the spring link according to one embodiment of the present utility model.

Embodiment

In the following description, with reference to the accompanying drawing for forming this specification part, wherein at least one by diagrammatically show Specific embodiment.The description below provides additional specific embodiment.It should be appreciated that it is conceivable that with make other embodiments and Without departing substantially from scope of the present disclosure or spirit.Therefore, it is described in detail below to have conditional meaning.Although this practicality is new Type not limited to this, but understanding to the various aspects of present disclosure will be obtained by the discussion to example provided below.

As used in this specification and the appended claims, term "or" is typically with the implication including "and/or" To use, unless the content in addition it is manifestly intended that.

" longitudinal direction of spring link " described in the utility model refers to along the length direction of spring link or its axial direction. When spring link is installed in suspension systems with being substantially transverse to vehicle longitudinal axis, " longitudinal direction " of the spring link is also substantially right Should be in the transverse direction (that is, perpendicular to the direction in Vehicle Speed direction) of vehicle.And described in the utility model " vehicle Longitudinal direction " then refers to travel direction when longitudinal center axis (or longitudinal center plane) direction of vehicle or its straight line travel.

" radial direction " of the sidewall sections of spring link described in the utility model be (referring to " R " direction in Fig. 3) Refer to the width in the direction, in other words spring link orthogonal with " longitudinal direction " of spring link.

" vertical direction " described in the utility model refers to that the road surface travelled with vehicle thereon or ground are in The direction of vertical relation.Because generally the flexible member of such as helical spring etc and/or shock absorber are not vertically installed at In suspension system, so the direction for the power that flexible member and/or shock absorber are put on spring link is entirely not necessarily " vertical Direction ", but the component along the power of " vertical direction " at least be present.

As shown in Figure 2, the general structure for the spring link 10 of the suspension system of vehicle is substantially similar to monoshell Formula spring link.Such spring link preferably can be by metal, the single type system such as aluminium, steel, aluminium alloy or other alloys Into, rather than by multiple parts spliced or be formed by connecting, to ensure enough rigidity and amount of deflection.Particularly advantageously, spring connects Bar 10 forms by sheet metal of the yield strength more than 650 MPas

Specifically, as shown in Figure 3, the spring link 10 includes bottom 15, and the bottom is preferably the shape of general planar Formula.Spring link 10 also includes paired side wall, and this upwards, is preferably extended vertically upward to side wall from bottom 15, and Along the longitudinal L extension of spring link, with cause if in terms of the longitudinally perpendicular section with spring link 10, if by bottom 15 and The spring link 10 that paired side wall is formed is the form of generally U-shaped groove.

It is preferred that spring link 10 is installed in suspension systems in which can be substantially transverse to vehicle longitudinal axis, but it is not limited to This arrangement form.Generally, spring link 10 may include two ends, i.e. first longitudinal direction end 16 and second longitudinal direction along its longitudinal direction End 18, wherein, spring link 10 is transversely disposed between the wheel of vehicle and vehicle bridge.For example, spring link 10 with its One longitudinal end 16 is connected to the knuckle positioned at vehicle wheel side, and is connected to axle carrier with its second longitudinal direction end 18 (for example, rear abutment bracket) 60.

As shown in Figure 3, spring link 10 includes the first section 11 and second along its longitudinal L between two longitudinal ends Section 12.Advantageously, first section 11 is closer to first longitudinal direction end 16 (that is, closer to wheel side), and the second section 12 closer to second longitudinal direction end 18 (that is, closer to vehicle bridge side).

Correspondingly, the paired side wall of spring link includes the paired the first side wall part in the first section 11 21st, 22 and the paired second sidewall part 31,32 in the second section 12.Particularly preferably, paired the first side wall Part 21,22 and paired second sidewall part 31,32 are respectively configured on the longitudinal center plane of spring link be basic It is upper symmetrical.But asymmetric construction is also within the scope of the utility model.

Can be such that due to from outside (for example, from wheel, suspension system according to spring link 10 of the present utility model In other parts etc.) high load forces caused by deform and dividually produce in two regions, i.e. the first of spring link 10 In the section 12 of section 11 and second.

Specifically, the shape of the first side wall part 21,22 can be configured to make one part form primary deformation zone. In the utility model, primary deformation zone is meant that is being applied to the along direction from the top down or from bottom to top by the first power F1 Power, especially deflection maximum region are deformed when in one section 11 in spring link 10.

The power that the shock absorber 70 and/or spring 80 that first power is from suspension system apply to the first section 11. First power can be the power that vertically applies, but not limited to this (for example, shock absorber and/or spring typically somewhat favour it is vertical Straight axis is set in suspension systems), as long as the first power includes the component in vertical direction.

Especially, the first power can not be only from the power on upper and lower direction, can also be conversely, for from bottom to top Power, i.e. the first power can for example float in the range of positive and negative amplitude (positive and negative amplitude can be with equal or different).

The shape of second sidewall part 31,32 can be configured to make one part form second deformation zone.It is new in this practicality In type, second deformation zone produces in spring link 10 when being meant that and the second power F2 is applied on spring link 10 along longitudinal L Raw deformation force, the especially maximum region of deflection.

It is understood that it is maximum deformation that deflection maximum, which is not implied that in the case where applying the power of any size, Amount, and refer to that caused deflection is maximum in whole spring link in the case of a certain power.For example, ought be applied simultaneously When one power and the second power, caused deflection is the maximum deformation quantity for the first power in primary deformation zone, and is become second Caused deflection is the maximum deformation quantity for the second power in shape area.

Second power is probably any impulsive force from wheel side during the traveling of vehicle.Second power F2 for example exists Edge is applied on spring link 10 towards the direction of second longitudinal direction end 18 at first longitudinal direction end 16.

As shown in fig. 1, the whole sidewall sections of spring link 10 generally preferred rectangular strip plate shape, in whole side Multiple connecting holes are may be provided with wall part, removably to be fixed with other components in suspension system or its supporting member Connection.

In a kind of advantageous embodiment, the width between the first side wall part 21,22 is relative to whole spring link To be smaller for mean breadth between 10 side wall.Alternatively, the whole side wall of spring link 10 can be in the first side wall portion Reach Breadth Maximum at points 21,22, then constantly reduced towards the second sidewall part 31,32 of spring link 10, such as can be with Reach minimum widith at second sidewall part 31,32, finally become big (but this width again towards second longitudinal direction end portion width Spend the Breadth Maximum still less than side wall at the first side wall part 21,22).

Certainly, according to the profile of the whole sidewall sections of spring link 10 of the present utility model (from the profile in terms of top view) Not limited to this.For example, as shown in Figure 3, its whole profile can also be generally along a longitudinal substantially the same or similar width Degree.

As illustrated in fig. 1-3, in paired the first side wall part 21,22, spacing between them can along from Upper downwardly direction (for example, along Z-direction) reduces.But the spacing between paired the first side wall part 21,22 be not limited to by Step ground reduces, but can include the constant part of spacing.In other words, in the utility model, " spacing diminution " refers to from upper A kind of trend generally reduced downwards.The increase of spacing is not completely excluded at some sites.

For example, the first side wall part 21,22 can include first upper sidewall portions 21a, 22a and the first lower sidewall portion 21b、22b.First lower sidewall portion 21b, 22b extends directly up from bottom 15, and first upper sidewall portions 21a, 22a is from One lower sidewall portion 21b, 22b continue up extension and especially relative to the first lower sidewall portion 21b, 22b radially to Outer direction extension.In other words, lower sidewall portion 21b, 22b of gap ratio first between first upper sidewall portions 21a, 22a it Between spacing it is big.

Advantageously, the first paired lower sidewall portion 21b, 22b extends vertically upwards from bottom 15, to cause both Between spacing keep constant or be basically unchanged.In contrast to this, first paired upper sidewall portions 21a, 22a is respectively from paired The first lower sidewall portion 21b, 22b rise constantly radially outward expand upwardly extend, to cause spacing between the two constantly to become Greatly.

Alternatively, the first paired lower sidewall portion 21b, 22b can also be from bottom 15 obliquely (obliquely outward) Upwardly extend, to cause spacing to be between the two continuously increased.Meanwhile first paired upper sidewall portions 21a, 22a respectively from The first paired lower sidewall portion 21b, 22b rises to be upwardly extended with similarly constantly radially outward expanding, to cause between the two Spacing constantly becomes big.But in this case, it is preferable that the gradient of the first lower sidewall portion 21b, 22b is less than (including slightly smaller In or significantly less than) first upper sidewall portions 21a, 22a gradient.

It is contemplated that when paired first upper sidewall portions 21a, 22a (or the first lower sidewall portion 21b, 22b Equally) outwards and be inclined upwardly extension when, first paired upper sidewall portions 21a, 22a (or the first lower sidewall portion 21b, 22b is similarly) it can linearly tilt extension.However, first upper sidewall portions 21a, 22a in pairs (or the first downside Wall part 21b, 22b is same) can also along its short transverse include it is at least one, preferably multiple curvature sections, their curvature Can be with mutually the same or different, but the general trend that these curvature sections are formed still is so that the first paired upper sidewall portions Spacing increase between 21a, 22a (or first paired lower sidewall portion 21b, 22b), rather than reduce.

Thus, it may be such that first paired upper sidewall portions 21a, 22a forms foregoing primary deformation zone.Specifically, when When spring link 10 is by the first power F1, first paired upper sidewall portions 21a, 22a can be in the presence of the first power with remote From the mode moved radially outwards from each other, for example deformed in a manner of " outwardly opening ".

For example, in the shock absorber 70 and/or spring 80 that are set in the first power F1 applied direction and suspension system The coincidence or parallel of heart axis direction, it has the component in vertical direction, and the component typically occupies sizable ratio (i.e., The first power F1 is smaller relative to the angle of vertical line).

Especially, the tie point 90 between the first section 11 and shock absorber 70 and/or spring 80 is located at the first side wall part On 21,22, particularly the first lower sidewall portion 21b, 22b it is upper, especially close to the opening position of the first upper sidewall portions.Change speech It, in the case, it is upper and close to the first upper side wall portion that the first power F1 is applied directly to the first lower sidewall portion 21b, 22b Divide 21a, 22a opening position, be thus advantageous to first upper sidewall portions 21a, 22a and produce radially outer deformation.

According in spring link 10 of the present utility model, it is possible to achieve produced when applying the first power F1 by primary deformation zone Raw deflection is the maximum deformation quantity in spring link 10.

Referring again to Fig. 1-3, in paired second sidewall part 31,32, the spacing between them can also edge Direction (for example, along Z-direction) from the top down reduces.But the spacing between paired second sidewall part 31,32 is not limited to Reduce step by step, but the constant part of spacing can be included.In other words, in the utility model, " spacing diminution " refer to from A kind of upper trend generally reduced downwards.

For example, paired second sidewall part 31,32 can include respectively second paired upper sidewall portions 31a, 32a and The second paired lower sidewall portion 31b, 32b.Second lower sidewall portion extends directly up from bottom 15, and the second upper side wall Part 31a, 32a from the second lower sidewall portion 31b, 32b continue up extension and relative to the second lower sidewall portion 31b, 32b extends radially outward direction.In other words, the A lower side wall portion of gap ratio second between second upper sidewall portions 31a, 32a Divide spacing between 31b, 32b big or at least equal therewith.

Advantageously, the second paired lower sidewall portion 31b, 32b extends vertically upwards from bottom 15, to cause both Between spacing keep constant or be basically unchanged.In contrast to this, second paired upper sidewall portions 31a, 32a is respectively from paired The second lower sidewall portion 31b, 32b rise constantly radially outward expand upwardly extend, to cause spacing between the two constantly to become Greatly.

In special preferred embodiment, the second paired lower sidewall portion 31b, 32b can also tilt from bottom 15 Ground (obliquely outward) upwardly extends, to cause spacing to be between the two continuously increased.Meanwhile the second paired upper sidewall portions 31a, 32a are similarly constantly upwardly extended with radially outward expanding from the second paired lower sidewall portion 31b, 32b respectively, with So that spacing between the two constantly becomes big.But in this case, more preferably, the second lower sidewall portion 31b, 32b is oblique Degree is less than (including slightly smaller than or significantly less than) second upper sidewall portions 31a, 32a gradient.

With the description above with respect to the first side wall part 21,22 similarly, as second paired upper sidewall portions 31a, 32a (or the second lower sidewall portion 31b, 32b is similarly) outwards and be inclined upwardly extension when, the second paired upper sidewall portions 31a, 32a (or the second lower sidewall portion 31b, 32b is similarly) linearly can (i.e., linearly) tilt extension.However, Paired second upper sidewall portions 31a, 32a (or the second lower sidewall portion 31b, 32b is same) can also include it is at least one, Preferably multiple curvature sections, their curvature can be with mutually the same or different, but the general trend that these curvature sections are formed is still Between being so so that between second paired upper sidewall portions 31a, 32a (or second paired lower sidewall portion 31b, 32b) Away from being continuously increased.

It is preferred that so that second upper sidewall portions 31a, 32a forms second deformation zone.Specifically, the second upper side wall portion 31a, 32a is divided to be configured to deform in a manner of moving out away from each other in the presence of the second power F2.In other words, second sidewall Part 31,32 can be configured in spring link (for example, the longitudinal direction one at its longitudinal end, especially away from the second section At end) receive the second power F2 when enable second upper sidewall portions 31a, 32a relative to the second lower sidewall portion 31b, 32b footpath To being pivoted out.Meanwhile spring link 10 can also be carried out at its second section 12 around an axis that radially direction extends Pivot.Spring link cause around the pivot of longitudinal axis the part near the longitudinal axis of the bottom of spring link with Vertical drop increase between at least one longitudinal end of spring link (i.e., causes spring link in " being bent upwards " Trend).

For example, second power F2 can be at the first longitudinal direction end 16 of spring link 10 along towards second longitudinal direction end 18 Direction be applied on spring link 10.In other words, the second power F2 applied direction can preferably with spring link 10 Central axial direction it is parallel or transverse plane with vehicle is parallel.That is, the second power F2 is from spring link 10 It is accepted at first longitudinal direction end 16, but is just produced until at the second section 12 due to primary deformable caused by the second power F2. More unfavorable metamorphosis occurs for the vehicle bridge that can so avoid near the second longitudinal direction end of spring link or locating.

According in spring link 10 of the present utility model, it is possible to achieve produced when applying the first power F2 by second deformation zone Raw deflection is the maximum deformation quantity in spring link 10, or starts to be deformed at first in second deformation zone.

In addition, in first upper sidewall portions 21a, 22a and/or second upper sidewall portions 31a, 32a with arcuate shape from right In the case that the first lower sidewall portion 21b, 22b and/or the second lower sidewall portion 31b, 32b answered are extended, arcuate shape The center of curvature is located within paired first/second sidewall sections (that is, outwardly profile), but can also be located at paired First/second sidewall sections outside (that is, the profile inwardly concaved).

It is preferred that the first section 11 and the second section 12 of spring link 10 also include respectively from the first side wall part 21, The flange part 41,42 that 22 top and the top water level land of second sidewall part 31,32 extend outward, as clearly may be used in Fig. 3 See.Flange part 41,42 can be designed to plane or the curved surface formed by identical or different curvature, and can also carry flange Side, corresponding deformation is produced during so as to be more beneficial for bearing load power in the first section 11 and/or the second section 12.

Particularly advantageously, on the radial direction R of spring link 10, the spacing between paired second sidewall part 31,32 It is smaller or roughly equal with it than the spacing between paired the first side wall part 21,22.But the utility model not limited to this, Can be along the longitudinal direction of spring link 10, in terms of the side of spring link, the spacing between sidewall sections keeps constant, or from the One longitudinal end 16 is constantly reduced to second longitudinal direction end 18 or increase.

By corresponding to the first power for putting on spring link 10 from the top down or from bottom to top and along be longitudinally applied in The second power on spring link 10 and maximum distortion is produced in primary deformation zone and second deformation zone respectively, spring can be caused Connecting rod 10 is deformed when by high load forces in different regions.With elastic link integrally as the existing of deformed article Technology is compared, and this deformation is advantageous to the whole of suspension system by ensuring in suspension system other parts or partial validity Body stability.

Especially, by being divided in two regions (for example, first section and the second section of spring link) to enter deformation OK, corresponding deflection can be more accurately adjusted for each region, so as to realize reliable stress deformation situation.In this feelings Under condition, can eliminate to increasing additional component to strengthen the demand of whole suspension system rigidity, so as to reduce weight and into This.

Therefore, many embodiments of spring link are disclosed.Above-mentioned realization and other realizations are in appended claims In the range of.It will be appreciated by those skilled in the art that the disclosure can be implemented using the embodiment outside disclosure.For explanation And unrestricted purpose gives the disclosed embodiments, and the utility model is limited solely by appended claims.

Claims (24)

1. a kind of spring link (10) of suspension system for vehicle, the spring link include：

Bottom (15)；And

Paired side wall, the side wall in pairs extend upwards and along the longitudinal direction (L) of the spring link from the bottom (15),

The spring link (10) includes the first section (11) and the second section (12), the paired side wall along the longitudinal direction (L) Including the paired the first side wall part (21,22) in first section (11) and positioned at second section (12) Interior paired second sidewall part (31,32),

Wherein, the shape design of the first side wall part (21,22) into make one part formed primary deformation zone, described first Deformed area be when the first power (F1) is applied on first section (11) along direction from the top down or from top to bottom The maximum region of caused deflection in whole spring link (10)；

Wherein, the shape design of the second sidewall part (31,32) into make one part formed second deformation zone, described second Deformed area is in whole spring link when the second power (F2) is applied on the spring link (10) along the longitudinal direction (L) (10) the maximum region of caused deflection in.

2. spring link (10) as claimed in claim 1, it is characterised in that paired the first side wall part (21,22) is each other Between spacing along from the top down direction reduce, and/or between paired second sidewall part (31,32) between Direction away from edge from the top down reduces.

3. spring link (10) as claimed in claim 1, it is characterised in that the first side wall part (21,22) includes the One upper sidewall portions (21a, 22a) and the first lower sidewall portion (21b, 22b),

First lower sidewall portion (21b, 22b) upwardly extends from the bottom (15), and

First upper sidewall portions (21a, 22a) are from first lower sidewall portion (21b, 22b) upwards and relative to institute The first lower sidewall portion (21b, 22b) is stated radially outward direction to extend, thus, the primary deformation zone includes described first Upper sidewall portions (21a, 22a), wherein, first upper sidewall portions (21a, 22a) are configured in first power (F1) Deformed under effect in a manner of moving out away from each other.

4. spring link (10) as claimed in claim 1, it is characterised in that the second sidewall part (31,32) includes the Two upper sidewall portions (31a, 32a) and the second lower sidewall portion (31b, 32b),

Second lower sidewall portion (31b, 32b) upwardly extends from the bottom (15), and

Second upper sidewall portions (31a, 32a) are from second lower sidewall portion (31b, 32b) upwards and relative to institute The second lower sidewall portion (31b, 32b) is stated to extend radially out, thus, the second deformation zone includes second upper side wall Partly (31a, 32a), wherein, second upper sidewall portions (31a, 32a) are configured in the presence of second power (F2) Deformed in a manner of moving out away from each other, and the spring link (10) can be at its second section (12) place around a radial axle Line pivots.

5. spring link (10) as claimed in claim 3, it is characterised in that first lower sidewall portion (21b, 22b) from The bottom (15) extends vertically upward or obliquely outward upwardly extended.

6. spring link (10) as claimed in claim 3, it is characterised in that first upper sidewall portions (21a, 22a) with Arcuate shape extends from first lower sidewall portion (21b, 22b), and the center of curvature of the arcuate shape is positioned at paired the Between one sidewall sections (21,22).

7. spring link (10) as claimed in claim 6, it is characterised in that the first upper sidewall portions (21a, 22a) edge Its short transverse includes different from each other multiple sections of curvature.

8. spring link (10) as claimed in claim 4, it is characterised in that second upper sidewall portions (31a, 32a) with Arcuate shape extends from second lower sidewall portion (31b, 32b), and the center of curvature of the arcuate shape is positioned at paired the Between two sidewall sections (31,32) or outside corresponding each second sidewall part.

9. spring link (10) as claimed in claim 4, it is characterised in that second lower sidewall portion (31b, 32b) from The bottom (15) extends vertically upward or obliquely outward upwardly extended.

10. spring link (10) as claimed in claim 1, it is characterised in that described first of the spring link (10) Section (11) and second section (12) also include respectively from the top of the first side wall part (21,22) and second side The flange part (41,42) that the top water level land of wall part (31,32) extends outward.

11. spring link (10) as claimed in claim 1, it is characterised in that the spring link (10) is included away from described The first longitudinal direction end (16) of second section (12) and close to the second longitudinal direction end (18) of second section (12), described the Two power (F2) are applied to the bullet at first longitudinal direction end (16) place along towards the direction of the second longitudinal direction end (18) On spring connecting rod (10), wherein, first section (11) is arranged to more vertical closer to described first than second section (12) To end (16).

12. spring link (10) as claimed in claim 3, it is characterised in that the first lower sidewall portion (21b, 22b) structure Cause to make first power (F1) be applied on first section (11) via first lower sidewall portion.

13. spring link (10) as claimed in claim 11, it is characterised in that in the suspension system, the spring connects Bar (10) is arranged between the wheel of the vehicle and axle carrier (60), wherein, the first longitudinal direction end (16) is positioned at The wheel side, and the second longitudinal direction end (18) is positioned at the axle carrier (60) side.

14. the spring link (10) as any one of claim 1-2,4-5,8-13, it is characterised in that described first Section (11) is configured to support the shock absorber (70) and/or spring (80) of the suspension system, and the shock absorber is come to receive (70) and/or the spring (80) the first power (F1) with vertical direction component.

15. the spring link (10) as any one of claim 3,6-7, it is characterised in that first section (11) Be configured to support the shock absorber (70) and/or spring (80) of the suspension system, to receive from the shock absorber (70) and/or The first power (F1) with vertical direction component of the spring (80).

16. spring link (10) as claimed in claim 14, it is characterised in that first section (11) and the shock absorber (70) tie point (90) and/or between the spring (80) is located on the first side wall part (21,22).

17. spring link (10) as claimed in claim 15, it is characterised in that first section (11) and the shock absorber (70) tie point (90) and/or between the spring (80) is located on the first side wall part (21,22).

18. spring link (10) as claimed in claim 1, it is characterised in that the spring link (10) is big by yield strength Formed in 650 MPas of sheet metals.

19. spring link (10) as claimed in claim 17, it is characterised in that first power (F1) is via the tie point It is applied on first lower sidewall portion (21b, 22b) and close to the position of first upper sidewall portions (21a, 22a) Place, wherein, the primary deformation zone in first upper sidewall portions and first lower sidewall portion including being located at institute State the part above tie point.

20. spring link (10) as claimed in claim 1, it is characterised in that the radial direction (R) in the spring link (10) On, the spacing between paired second sidewall part (31,32) is equal to or less than between paired the first side wall part (21,22) Spacing.

21. spring link (10) as claimed in claim 12, it is characterised in that first lower sidewall portion (21b, 22b) It is configured to receive first power (F1), to cause first upper sidewall portions (21a, 22a) can be relative under described first Sidewall sections (21b, 22b) radially outward pivot.

22. spring link (10) as claimed in claim 4, it is characterised in that the second sidewall part (31,32) is configured to Second upper sidewall portions (31a, 32a) described in when the spring link receives the second power (F2) can be relative to described second Lower sidewall portion (31b, 32b) radially outward pivots.

23. spring link (10) as claimed in claim 1, it is characterised in that the direction of second power (F2) applied It is parallel with the central axial direction of the spring link or parallel with the transverse plane of the vehicle.

24. spring link (10) as claimed in claim 1, it is characterised in that the side wall in pairs is along the spring link (10) the curved surface for being longitudinally formed to include same curvature or the curved surface for including multiple different curvatures.