CN106427440A

CN106427440A - Suspension mechanism and automobile

Info

Publication number: CN106427440A
Application number: CN201610937756.8A
Authority: CN
Inventors: 王子欣
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-10-25
Filing date: 2016-10-25
Publication date: 2017-02-22
Anticipated expiration: 2036-10-25
Also published as: CN106427440B

Abstract

The invention discloses a suspension mechanism and an automobile applying the same. According to the suspension mechanism, coupling of an automobile body connecting portion and a wheel axle connecting portion at two embedded joints replaces a connecting rod system in a traditional structure, so that the structure is more compact, the occupied space is easily saved, and therefore the space occupied by a machine is designed to the minimum extent. Due to the fact that the suspension mechanism is compact in structure, installation points are distributed more intensively, so that the assembling difficulty is lowered, and the assembling efficiency is improved. In addition, the suspension mechanism can adapt to various automobile types with a main body frame of the relatively simplified structure due to the fact that the structural differentiation degree of different automobile types is low, so that modularization and platform are easy to achieve, the collinear production difficulty of multiple automobile types can be lowered, and the collinear production efficiency of the multiple automobile types can be improved.

Description

Suspension fork mechanism and automobile

Technical field

The present invention relates to a kind of suspension fork mechanism and applying a kind of automobile of the suspension fork mechanism.

Background technology

With the development of automobile industry, the modularity of automobile, hardware and software platform and lightweight become automobile research and development and production Important directions.And the suspension of automobile is used as the important component part of vehicle body, be related to the applying working condition of automobile, design research and development, zero Part manufacture and car load manufacture.

Traditional suspension coordinates the structure for supporting system mostly using linkage.Although historical development and the technology through automobile Upgrading innovation, the volume of suspension and structure have been greatly improved, but the restriction due to principle and structure, the volume of suspension is Through being difficult further to reduce.Thus, the larger space near wheel all can be taken by suspension, especially the horizontal sky of automobile Between, so as to be unfavorable for general arrangement and the man-machine environment of car load, it is difficult to which the space for taking machinery is designed by minimum.

And, coordinate the mount point dispersion of the traditional suspension for supporting the structure of system using linkage, in maintenance and whole machine dress During joining, generally require to be equipped with more than ten AGV for production line（Automated Guided Vehicle, guiding transport automatically Car）High accuracy is realized for scattered each mount point to lift, so as to cause, assembly difficulty is big, efficiency is low.

In addition, can there is larger difference with the difference of vehicle due to the structure of linkage and assembling demand in traditional suspension Different, thus be difficult to realize modularity and hardware and software platform layer, so that the difficulty of multi-vehicle-type mixed production is big, efficiency is low.

Obviously, in order to take into account space, assembling and modularity and hardware and software platform in terms of these, the design research and development of suspension are inevitable By many constraints, and thus cause the difficult big, cycle for designing research and development long.

Content of the invention

An embodiment provides a kind of suspension fork mechanism, the suspension fork mechanism can at least be conducive to accounting for machinery Space is designed by minimum, contributes to reducing assembly difficulty and lift efficiency of assembling and be easily achieved modularity peace Platform.Correspondingly, the suspension fork mechanism includes：

Vehicle body connecting portion；

Wheel shaft connecting portion；

First guide part, first guide part is fixed on the vehicle body connecting portion；

Second guide part, second guide part is fixed on the wheel shaft connecting portion；

First fitting portion, the first fitting portion is fixed on the wheel shaft connecting portion chimeric with first guide part；

Second fitting portion, the second fitting portion is fixed on the vehicle body connecting portion chimeric with second guide part；

First intermediate medium, first intermediate medium between the first fitting portion and first guide part first is embedding Close at node and degree of freedom is provided, to allow described first node to be fitted together to between the first fitting portion and first guide part Move along the axis of first guide part relative to slip, the axis of first guide part is fitted together to node with described first Relatively rotate around the axis of first guide part for propping up spot wobble and the first fitting portion and first guide part；

Second intermediate medium, second intermediate medium between the second fitting portion and second guide part second is embedding Close at node and degree of freedom is provided, to allow described second node to be fitted together to between the second fitting portion and second guide part Move along the axis of second guide part relative to slip, the axis of second guide part is fitted together to node with described second and is Prop up the axis of spot wobble and the second fitting portion with second guide part around second guide part to relatively rotate.

Preferably, the relative translational movement between the vehicle body connecting portion and the wheel shaft connecting portion, by described first middle Jie The degree of freedom collaboration that matter and second intermediate medium are provided is constrained to the instantaneous swing of the automobile for applying the suspension fork mechanism The sliding motion of axle centered on axis, wherein, the instantaneous axis of oscillation is by the suspension longitudinal direction Instantaneous center of the automobile Limit with the horizontal Instantaneous center of suspension.

Alternatively, the instantaneous axis of oscillation is located at infinite point in the length of the automobile or width.Or, The instantaneous axis of oscillation is near the front portion of the automobile or rear portion on the length direction of the automobile.Or, described instantaneous Axis of oscillation is positioned at the inner or outer side of the automobile on the width of the automobile.

Preferably, the relative rotation between the vehicle body connecting portion and the wheel shaft connecting portion, by described first middle Jie The degree of freedom collaboration that matter and second intermediate medium are provided is constrained to be fitted together to node and described second embedding through described first The hinge motion of axle centered on the axis of conjunction node.

Alternatively, at least one of first intermediate medium and second intermediate medium include spherical hinge or flexibility Bushing.

Alternatively, the vehicle body connecting portion and the wheel shaft connecting portion each are formed as rigid cage；Described first leads It is formed rigid rod to portion and is assemblied in the rigid cage to form the vehicle body connecting portion；Second guide part is by shape Become rigid rod and be assemblied in the rigid cage to form the wheel shaft connecting portion；The first fitting portion be formed cover hole, And be integrally formed with the rigid cage for forming the wheel shaft connecting portion；The second fitting portion is formed to cover hole and shape Become the rigid cage of the vehicle body connecting portion to be shaped in or be assemblied in the rigid cage to form the vehicle body connecting portion.

An alternative embodiment of the invention provides a kind of automobile, including front suspension and rear suspension, also, the front suspension Include suspension fork mechanism as above with least one of the rear suspension.

Preferably, the suspension fork mechanism, also, the vehicle body connecting portion are all included in the front suspension and the rear suspension And limit range of the relative rotation between the wheel shaft connecting portion in the front suspension, more than the vehicle body connecting portion and institute State the limit range for relatively rotating in suspension in the rear between wheel shaft connecting portion.

It can be seen that, the suspension fork mechanism in above-described embodiment is using vehicle body connecting portion with wheel shaft connecting portion in two chimeric nodes Coupling instead of linkage in traditional structure, thus more compact structure, it is easy to save the horizontal stroke of the space, the especially automobile that take To space, so as to be conducive to general arrangement and the man-machine environment of car load, it is easy to which the space for taking machinery is designed by minimum.

And, the suspension fork mechanism in above-described embodiment is due to compact conformation, thus makes the distribution of mount point more intensive, especially Which is that the crucial mount point for realizing coupling is focusing only at two chimeric points, so as to contribute to reducing assembly difficulty, lifting Efficiency of assembling.

In addition, the main body frame of the suspension fork mechanism in above-described embodiment is only connected with wheel shaft by the vehicle body connecting portion for intercoupling Socket part is constituted, thus its architectural difference degree for being directed to different automobile types relatively low, can be with the main body of the relative unification of structure Framework adapts to various, it might even be possible to think that structure has versatility with respect to the main body frame of unification to different automobile types；And And, the suspension fork mechanism in above-described embodiment only have vehicle body connecting portion and the two main elements of wheel shaft connecting portion, thus its make right The demand of die sinking quantity is relatively low.So as to the suspension fork mechanism in above-described embodiment is easily achieved modularity and hardware and software platform, and can drop The difficulty of low multi-vehicle-type mixed production and the efficiency of raising multi-vehicle-type mixed production.

Based on this, when needing while when taking into account space, assembling and modularity and hardware and software platform in terms of these, above-mentioned enforcement The constraint that the design research and development of the suspension fork mechanism in example are suffered is certainly less than traditional suspension, and thus reduces the tired of design research and development Cycle that is difficult, shortening design research and development.

Description of the drawings

Fig. 1 is the decomposition texture schematic diagram of the suspension fork mechanism in one embodiment；

Fig. 2 a to Fig. 2 c is the assembling structure schematic diagram of suspension fork mechanism as shown in Figure 1；

Fig. 3 is showing for a kind of optional alternative structure of the vehicle body connecting portion of the suspension fork mechanism as shown in Fig. 1 and Fig. 2 a to Fig. 2 c It is intended to；

Fig. 4 a and Fig. 4 b are the first example schematic of the intermediate medium in suspension fork mechanism as shown in Fig. 1 and Fig. 2 a to Fig. 2 c；

Fig. 5 is the equivalent structure schematic diagram of the first example as shown in figures 4 a and 4b；

Fig. 6 is the equivalent structure extension schematic diagram of the first example as shown in figures 4 a and 4b；

Fig. 7 a and Fig. 7 b are that the second example of the intermediate medium in the suspension fork mechanism as shown in Fig. 1 and Fig. 2 a to Fig. 2 c is illustrated Figure；

Fig. 8 is the equivalent structure schematic diagram of the second example as shown in figs. 7 a and 7b；

Fig. 9 a and Fig. 9 b are that the 3rd example of the intermediate medium in the suspension fork mechanism as shown in Fig. 1 and Fig. 2 a to Fig. 2 c is illustrated Figure；

Figure 10 is the equivalent structure schematic diagram of the 3rd example as shown in figures 9 a and 9b；

Figure 11 is the motion principle schematic diagram of the suspension fork mechanism as shown in Fig. 1 and Fig. 2 a to Fig. 2 c；

Figure 12 a to Figure 12 c is the equivalent structure schematic diagram of sliding motion as shown in figure 11.

Specific embodiment

For making the objects, technical solutions and advantages of the present invention become more apparent, develop simultaneously embodiment referring to the drawings, right The present invention is further described.

Fig. 1 and Fig. 2 a to Fig. 2 c is referred to, in one embodiment, a kind of suspension fork mechanism includes：Vehicle body connecting portion 10, In the middle of wheel shaft connecting portion 20, the first guide part 31, first fitting portion 41, the second guide part 32, second fitting portion 42 and first Medium 51 and the second intermediate medium 52.

Vehicle body connecting portion 10 is mainly used in the connection of suspension fork mechanism and body portion, in this embodiment, vehicle body connecting portion 10 are formed rigid cage.But it is understood that, vehicle body connecting portion 10 is not limited to rigid cage, and, even if Vehicle body connecting portion 10 is formed rigid cage, and the rigid cage is also not limited to shown in Fig. 1 and Fig. 2 a to Fig. 2 c Structure.

Wheel shaft connecting portion 20 is mainly used in the connection of suspension fork mechanism and wheel portion, in this embodiment, wheel shaft connecting portion 20 are equally formed rigid cage and have similar to Cornu Caprae seu Oviss bracing strut（Or referred to as knuckle）Structure.But it is permissible It is understood by, wheel shaft connecting portion 20 is not limited to rigid cage, and, even if wheel shaft connecting portion 20 is formed rigid support Frame, the rigid cage does not limit to the structure shown in Fig. 1 and Fig. 2 a to Fig. 2 c yet.

First guide part 31 and first fitting portion 41 are accordingly respectively arranged at vehicle body connecting portion 10 and wheel shaft connecting portion 20.That is, the first guide part 31 is fixed on vehicle body connecting portion 10, and first fitting portion 41 is fixed on wheel shaft connecting portion 20, also, first Fitting portion 41 is chimeric with the first guide part 31.Wherein, the part chimeric each other with the first guide part 31 of first fitting portion 41, permissible It is considered that first is fitted together to node N1.

Second guide part 32 and second fitting portion 42 are accordingly respectively arranged at wheel shaft connecting portion 20 and vehicle body connecting portion 10.That is, the second guide part 32 is fixed on vehicle body connecting portion 10, and second fitting portion 42 is fixed on wheel shaft connecting portion 20, also, second Fitting portion 42 is chimeric with the second guide part 32.Wherein, the part chimeric each other with the second guide part 32 of second fitting portion 42, permissible It is considered that second is fitted together to node N2.

The first guide part 31 be can be seen that from Fig. 1 and Fig. 2 a to Fig. 2 c and second fitting portion 42 is separately positioned on vehicle body The opposite end of connecting portion 10, first fitting portion 41 and the second guide part 32 are separately positioned on relative the two of wheel shaft connecting portion 20 End, also, the side that the first guide part 31 is leveled off between the opposite end of vehicle body connecting portion 10 upwardly extend, the second guide part 32 sides for leveling off between the opposite end of wheel shaft connecting portion 20 upwardly extend.That is, the axis c1 of the first guide part 31 is to car Line direction between the opposite end of body connecting portion 10 is drawn close, and the axis c2 of the second guide part 32 is to the phase of wheel shaft connecting portion 20 Line direction between two ends is drawn close.

It is understood that the first guide part 31, first fitting portion 41, the second guide part 32, second fitting portion 42 is upper Arrangement is stated, main definitions first are fitted together to the direction of relative movement between point N1 point N2 chimeric with second, and first is fitted together to Direction of relative movement between point N1 point N2 chimeric with second is not limited to this one kind, and therefore, the first guide part 31, first is fitted together to Portion 41, the second guide part 32, the arrangement of second fitting portion 42 are necessarily also not necessarily limited to the above-mentioned side provided in the embodiment Formula.

It is understood that above-mentioned chimeric refer to chimeric both sides and there is ground in match with one another matching relationship, and It is not particularly limited the factors such as technique or tolerance.For example, in Fig. 1 and Fig. 2 a to Fig. 2 c, the first guide part 31 and second is oriented to Portion 32 each is formed as rigid rod, and first fitting portion 41 and second fitting portion 42 each are formed as covering hole, and correspondingly, first is oriented to Qian He between Qian He between portion 31 and first fitting portion 41 and the second guide part 32 and second fitting portion 42, then permissible Hole axle cooperation or the hinged cooperation of sphere or curved form of cylinder or conical surface form is referred to, and is not particularly limited assembly technology And the margin of tolerance.

It is understood that the both sides that above-mentioned fixation refers to fixation do not have relative movement, and it is not to refer in particular to Technique.For example, in Fig. 1 and Fig. 2 a to Fig. 2 c, the first guide part 31 is assemblied in the rigid support to form vehicle body connecting portion 10 Frame, the second guide part 32 are assemblied in the rigid cage to form wheel shaft connecting portion 20, i.e. the fixation of assembling mode；Again for example, exist In Fig. 1 and Fig. 2 a to Fig. 2 c, first fitting portion 41 and the rigid cage for forming wheel shaft connecting portion 20 are integrally formed, second embedding Conjunction portion 42 is integrally formed with the rigid cage for forming vehicle body connecting portion 10, i.e. be integrally formed the fixation of mode.

And, the fixation of the fixation of assembling mode and the mode that is integrally formed can phase double replacement.For example, Fig. 3 is referred to, the Two fitting portions 42 can also with the rigid support split molding for forming vehicle body connecting portion 10, and by assembling mode realize both it Between fixation.

First intermediate medium 51 and the second intermediate medium 52 are respectively used to be fitted together to the chimeric node of node N1 and second first Degree of freedom is provided at N2, or, it is understood that it is respectively used to define for the first intermediate medium 51 and the second intermediate medium 52 One is fitted together to the degree of freedom that node N1 and second is fitted together to node N2.Wherein：

First intermediate medium 51 can allow first to be fitted together to node N1 with first in the first degree of freedom for being fitted together to offer at node N1 The axis c1 relative to slip along the first guide part 31 between fitting portion 41 and the first guide part 31 is moved, and can allow first The axis c1 of guide part 31 is fitted together to node N1 as a spot wobble with first, and, can also allow for first fitting portion 41 and first Guide part 31 is relatively rotated around the axis c1 of the first guide part 31；Also, the first intermediate medium 51 is in the footpath of the first guide part 31 Limit on direction or constrain the relative freedom between the first guide part 31 and first fitting portion 41；

Second intermediate medium 52 can allow second to be fitted together to node N2 with second in the second degree of freedom for being fitted together to offer at node N2 The axis c2 relative to slip along the second guide part 32 between fitting portion 42 and the second guide part 32 is moved, and second can be allowed to lead Node N2 is fitted together to as a spot wobble to the axis c2 in portion 32 with second, and, can also allow for second fitting portion 42 and lead with second Relatively rotate to portion 32 around the axis c2 of the second guide part 32；Also, the second intermediate medium 52 is in the radial direction of the second guide part 32 Limit on direction or constrain the relative freedom between the second guide part 32 and second fitting portion 42.

Certainly, above-mentioned swing along axis c1 or c2 movement, axis c1 or c2 and rotate around axis c1 or c1 be all with First fitting portion 41 or second fitting portion 42 are fixed reference frame.When using the first guide part 31 or the second guide part 32 as During fixed reference frame, above-mentioned movement, swing and rotation is it is also assumed that be chimeric along first fitting portion 41 or second Portion 42 moves, the axis oscillating of first fitting portion 41 or second fitting portion 42 and around first fitting portion 41 or second fitting portion Axis rotate.Also, when current embodiment is applied, the axis of the axis c1 of the first guide part 31 and the second guide part 32 C2 can respectively with the axis of first fitting portion 41 and the dead in line of second fitting portion 42, it is also possible to respectively with first fitting portion The eccentric axis of 41 axis and second fitting portion 42 are arranged.

In order to more fully understand that the first intermediate medium 51 and the second intermediate medium 52 be fitted together to node N1 and the first respectively Two are fitted together to node N2 role, are illustrated with reference to three examples.

As the first chimeric node N1 and second is fitted together to node N2, there is certain versatility or substitutability, therefore, During illustration, the first guide part 31 and the second guide part 32 are referred to as guide part, by first fitting portion 41 and second Fitting portion 42 is referred to as fitting portion, and, the first intermediate medium 51 and the second intermediate medium 52 are referred to as intermediate medium.

Referring first to Fig. 4 a and Fig. 4 b and Fig. 5, so that intermediate medium includes spherical hinge 500 as an example：

Rigid inner sleeve 500a of spherical hinge 500 is slidably matched with guide part 30a or 30b so that guide part 30a or 30b with embedding The relative free sliding degree fm of the axis along guide part 30a or 30b is formed between conjunction portion 40.Also, in the rigidity of spherical hinge 500 Set 500a is in the cross-sectional direction of guide part 30a or 30b（I.e. guide part 30a or 30b be in the radial direction）Limit or constrain The degree of freedom of guide part 30a or 30b.Correspondingly, although the rectangle in guide part 30a and Fig. 4 b of the circular cross section in Fig. 4 a There is the difference on cross sectional shape in the guide part 30b of cross section, but as the difference is present in by the transversal of restraint of liberty degree Face direction, thus the difference does not interfere with the realization of scheme.

The outer rigid housing 500b of spherical hinge 500 is fixed in fitting portion 40, and the outer rigid housing 500b of spherical hinge 500 with 40 mating spherical surfaces of fitting portion.

And, the outer rigid housing 500b of spherical hinge 500 is with respect to chimeric in the cross-sectional direction of guide part 30a or 30b The translation in portion 40 is restrained or forbids.

Therefore, exist around 3 solid axes between the outer rigid housing 500b of spherical hinge 500 and the inner chamber of fitting portion 40 Rotary freedom fr and fs；Wherein, 3 solid axes described here, are the seat with the dead in line of spherical hinge 500 respectively The coordinate axess of parameter, the coordinate axess perpendicular to Fig. 5 paper direction and the paper direction parallel to Fig. 5, and illustrate in Fig. 5 Fr represents the rotary freedom with the coordinate axess of the dead in line of spherical hinge 500 as axle center, and fs is while represent with vertical and flat The coordinate axess of the capable paper in Fig. 5 are the rotary freedom in axle center.

So as to, intermediate medium using the offer of spherical hinge 500 rotary freedom fs, can make guide part 30a or 30b with embedding The opposing oscillatory degree of freedom with spherical hinge 500 as fulcrum is formed between conjunction portion 40；Also, intermediate medium using spherical hinge 500 is The rotary freedom fr that intermediate medium is provided, can make to be formed with guide part 30a between guide part 30a or 30b and fitting portion 40 Or centered on the axis of 30b axis rotate against degree of freedom.

In addition, referring to Fig. 6, above-mentioned first example can be further expanded, i.e. rigid inner sleeve 500a of spherical hinge 500 Can be connected by cushion collar 500c between outer rigid housing 500b, this can be understood as the rigid inner sleeve in the first example Rigid constraint between 500a and outer rigid housing 500b replaces with the flexible constraint based on cushion collar 500c.

Referring again to Fig. 7 a and Fig. 7 b and Fig. 8, flexible liner is included with intermediate medium（Or referred to as resilient bushing）600 are Example：

Rigid inner sleeve 600a of flexible liner 600 is slidably matched with guide part 30a or 30b so that guide part 30a or 30b with The relative free sliding degree fm of the axis along guide part 30a or 30b is formed between fitting portion 40；And, in guide part 30a or In the cross-sectional direction of 30b（I.e. guide part 30a or 30b be in the radial direction）, the rigid inner sleeve 600a limit of flexible liner 600 Degree of freedom between system or constraint guide part 30a or 30b and fitting portion 40.Correspondingly, although the circular cross section in Fig. 7 a There is the difference on cross sectional shape in the guide part 30b of the rectangular cross section in guide part 30a and Fig. 7 b, but as the difference is present In by the cross-sectional direction of restraint of liberty degree, thus the difference does not interfere with the realization of scheme.

The outer rigid housing 600b of flexible liner 600 is fixed in fitting portion 40, and the outer rigid housing of flexible liner 600 600b is coordinated with 40 cylinder of fitting portion.Wherein：

When the cylinder coordinates in the margin of tolerance for fall within gap cooperation, the outer rigid housing 600b of flexible liner 600 with chimeric The rotary freedom fr with the coordinate axess of the dead in line of flexible liner 600 as axle center can be formed between portion 40, also, flexible Cushion collar 600c between the outer rigid housing 600b of bushing 600 and rigid inner sleeve 600a can make flexible liner by compressional deformation Formed between rigid inner sleeve 600a of set 600 and fitting portion 40 with the coordinate axess of vertical and paper parallel to Fig. 5 as axle center Rotary freedom fs；

And when the cylinder coordinates and falls within the margin of tolerance of interference fit, rotary freedom fr and fs is all by cushion collar The compressional deformation of 600c is formed between rigid inner sleeve 600a of flexible liner 600 and fitting portion 40.

So as to, intermediate medium using the offer of flexible liner 600 rotary freedom fs, can make guide part 30a or 30b with The opposing oscillatory degree of freedom with flexible liner 600 as fulcrum is formed between fitting portion 40；Also, intermediate medium utilizes flexible liner The 600 rotary freedom fr for providing for intermediate medium, can make to be formed between guide part 30a or 30b and fitting portion 40 to be oriented to Centered on the axis of portion 30a or 30b, axis rotates against degree of freedom.

And, the cylinder cooperation between the outer rigid housing 600b of flexible liner 600 and fitting portion 40 falls within gap cooperation The margin of tolerance in or interference fit the margin of tolerance in, can think that the outer rigid housing 600b of flexible liner 600 is leading Restrained with respect to the translation of fitting portion 40 or forbid in the cross-sectional direction of portion 30a or 30b.

In addition, coordinating, for above-mentioned cylinder, the in the case of of falling within the margin of tolerance of interference fit, also exist a kind of possible Deformation, i.e. save the outer rigid housing 600b of flexible liner 600, and make cushion collar 600c by the technique such as example vulcanizing Fitting portion 40 is attached to, at this point it is possible to be interpreted as that intermediate medium is integrally formed at fitting portion 40.

Referring again to Fig. 9 a and Fig. 9 b and Figure 10, so that intermediate medium includes spherical hinge 700 as an example：

Rigid inner sleeve 700a of spherical hinge 700 is slidably matched with guide part 30a or 30b so that guide part 30a or 30b with embedding The relative free sliding degree fm of the axis along guide part 30a or 30b is formed between conjunction portion 40.Also, in the rigidity of spherical hinge 700 Set 700a is in the cross-sectional direction of guide part 30a or 30b（I.e. guide part 30a or 30b be in the radial direction）Limit or constrain The degree of freedom of guide part 30a or 30b.Correspondingly, although the rectangle in guide part 30a and Fig. 9 b of the circular cross section in Fig. 9 a There is the difference on cross sectional shape in the guide part 30b of cross section, but as the difference is present in by the transversal of restraint of liberty degree Face direction, thus the difference does not interfere with the realization of scheme.

The outer rigid housing 700b of spherical hinge 700 is fixed in fitting portion 40, the outer rigid housing 700b of spherical hinge 700 with chimeric 40 cylinder of portion coordinates, also, cylinder cooperation is fallen within the margin of tolerance of interference fit；The outer rigid housing of spherical hinge 700 Cushion collar 700c, rigid inner sleeve 700a of spherical hinge 700 and cushion collar 700c mating spherical surfaces are enclosed with 700b.

And, the outer rigid housing 700b of spherical hinge 700 is with respect to chimeric in the cross-sectional direction of guide part 30a or 30b The translation in portion 40 is restrained or forbids.

Therefore, in rigid inner sleeve 700a of spherical hinge 700 and the outer rigid housing 700b of spherical hinge 700 and fitting portion 40 There is the rotary freedom fr and fs around 3 solid axes between chamber；Wherein, 3 solid axes described here, respectively It is and the coordinate axess of the dead in line of spherical hinge 700, the coordinate axess perpendicular to Figure 10 paper direction and the paper parallel to Figure 10 The coordinate axess in face direction, and the fr for illustrating in Figure 10 represents the rotation with the coordinate axess of the dead in line of spherical hinge 700 as axle center Degree of freedom, fs is while represent the rotary freedom with the coordinate axess of vertical and paper parallel to Fig. 7 as axle center.

So as to, intermediate medium using the offer of spherical hinge 700 rotary freedom fs, can make guide part 30a or 30b with embedding The opposing oscillatory degree of freedom with spherical hinge 700 as fulcrum is formed between conjunction portion 40；Also, intermediate medium using spherical hinge 700 is The rotary freedom fr that intermediate medium is provided, can make to be formed with guide part 30a between guide part 30a or 30b and fitting portion 40 Or centered on the axis of 30b axis rotate against degree of freedom.

By examples detailed above, provide as above to be fitted together at the chimeric node N2 of node N1 and second first Degree of freedom, the self structure of the first intermediate medium 51 and the second intermediate medium 52 arbitrarily can be arranged, and be not limited to certain Specific structure or element.

Also, in above-mentioned example, the axis of rigid inner sleeve 500a, 600a and 700a is oriented to described previously first The axis c2 of the axis c1 in portion 31 or the second guide part 32 can be overlapped, and outer rigid housing 600b, 600b and 700b Axis then can be Chong Die with the axis of first fitting portion described previously 41 or second fitting portion 42.

Figure 11 is referred to, node N1 and the are fitted together to first respectively based on the first intermediate medium 51 and the second intermediate medium 52 Two are fitted together at node N2 the degree of freedom for providing or defining, and first is fitted together to the chimeric node N2 of node N1 and second can be respectively along Fig. 9 Shown track S1 and S2 movement, makes to form the relative translational movement of sliding mode between vehicle body connecting portion 10 and wheel shaft connecting portion 20. Also, when vehicle body connecting portion 10 is fixedly connected with the body portion of the automobile for applying the suspension fork mechanism, it is believed that be wheel shaft The axle centered on the instantaneous axis of oscillation of the automobile of connecting portion 20 is moved with respect to 10 sliding of vehicle body connecting portion.

That is, the relative translational movement for being formed between vehicle body connecting portion 10 and wheel shaft connecting portion 20, by the first intermediate medium 51 and the The degree of freedom collaboration that two intermediate medium 52 is provided is constrained to centered on the instantaneous axis of oscillation of the automobile for applying the suspension fork mechanism The sliding motion of axle.

Instantaneous axis of oscillation described here, according to the definition of automotive field, can be instantaneous by the suspension longitudinal direction of automobile The centre of motion and the horizontal Instantaneous center of suspension are limited, i.e. instantaneous axis of oscillation may be considered suspension longitudinal direction transient motion Center and the line of the horizontal Instantaneous center of suspension.

And, as can be seen that the axis c1 of the first guide part 31 is led with second from Fig. 1, Fig. 2 a to Fig. 2 c and Figure 11 Spatially intersect to the axis c2 in portion 32（" spatially intersecting " mentioned in this article can be understood as non-parallel, i.e. comprising sky Between the situation of antarafacial and there is the situation of intersection point）, but the presence due to the first intermediate medium 51 and the second intermediate medium 52, by In the movement interference that axis c1 is intersected with c2 and vehicle body connecting portion 10 and wheel shaft connecting portion 20 are likely to form, can be by first Between the degree of freedom that provides of medium 51 and the second intermediate medium 52 eliminate, make sliding between vehicle body connecting portion 10 and wheel shaft connecting portion 20 The relative translational movement of mode can be fitted together to the coupling at the chimeric node N2 of node N1 and second by the two first to realize.

Wherein, as figure 12 a shows, when the axis c1 of the first guide part 31 and the second guide part 32 axis c2 spatially Intersecting, instantaneous axis of oscillation Ci may be located at the side of the dorsad wheel shaft connecting portion 20 of vehicle body connecting portion 10（Can be understood as automobile Width on inner side）, i.e. instantaneous axis of oscillation Ci is built-in on the width of automobile；As shown in Figure 12b, when The axis c2 of the axis c1 of one guide part 31 and the second guide part 32 spatially intersects, and instantaneous axis of oscillation Ci can also be located at The side of the dorsad vehicle body connecting portion 10 of wheel shaft connecting portion 20（Can be understood as the outside on the width of automobile）, i.e. instantaneous Axis of oscillation Ci is external on the width of automobile.

In addition, also there is a kind of situation, i.e. the axis c2 of the axis c1 of the first guide part 31 and the second guide part 32 is in sky Between upper parallel, now, because there is the possibility of disturbance in the axis c1 of the first guide part 31 and the second guide part 32, thus this place Parallel under the parallel simply a kind of stable state that states, rather than constant absolute normality is kept, thus the axis in the first guide part 31 When c1 and the axis c2 of the second guide part 32 are spatially parallel, sliding mode between vehicle body connecting portion 10 and wheel shaft connecting portion 20 Relative translational movement still can be understood as by the two first be fitted together to node N1 and second be fitted together to node N2 at coupling come Realize.Now, refer to Figure 12 c, instantaneous axis of oscillation Ci to can consider on the width of automobile positioned at either side Infinite point.

Figure 12 a to Figure 12 c is the perspective view on motor vehicle length direction, exists in order to embody instantaneous axis of oscillation Ci The position of vehicle width direction, this also means that, above-mentioned intersecting or parallel limited instantaneous swinging axle by axis c1 and c2 The position of line Ci, the more importantly embodiment on the width of automobile.

Certainly, axis c1 and c2 intersect or the parallel and its position of instantaneous axis of oscillation Ci that limits automobile length There can also be similar embodiment on direction.That is, instantaneous axis of oscillation Ci is may be located at no in the length of automobile or width The front portion or the rear portion near automobile of poor distant place or close automobile.Also, the position of instantaneous axis of oscillation Ci is in the length of automobile Degree direction embodiment from the width of automobile embodiment can identical, can also be different.

As a kind of preferred version, on the width of automobile, the phase intersecting and merging of axis c1 and c2 limit instantaneous swinging axle Line Ci is internal or external, and on the length direction of automobile, axis c1 is parallel with c2 and limits instantaneous axis of oscillation Ci positioned at no Poor distant place.It is understood that so-called preferred version is compared to other schemes in practical application with further more excellent The scheme of effect, is not necessity restriction to present example.

Please again Figure 11 is reviewed, first is fitted together to the chimeric node N2 of node N1 and second can serve as vehicle body connecting portion 10 and wheel shaft The fulcrum of the relative rotation between connecting portion 20, and it is based on the first intermediate medium 51 and the second intermediate medium 52 is embedding first respectively Close node N1 and second and the degree of freedom for providing or defining is provided at node N2, between vehicle body connecting portion 10 and wheel shaft connecting portion 20 Relatively rotate, the degree of freedom collaboration for being provided by the first intermediate medium 51 and the second intermediate medium 52 is constrained to be fitted together to through first The hinge motion R0 of axle centered on the axis c0 of the chimeric node N2 of node N1 and second, and such hinge motion R0 is obviously also The coupling at the chimeric node N2 of node N1 and second is fitted together to by vehicle body connecting portion 10 and wheel shaft connecting portion 20 first to realize 's.

It is understood that the above-mentioned intersecting and parallel stable state that can be regarded as under certain operating mode, and should not be viewed as It is changeless steady state.Due to the degree of freedom that the first intermediate medium 51 and the second intermediate medium 52 are provided, above-mentioned stable state can To change with the relative motion between vehicle body connecting portion 10 and wheel shaft connecting portion 20.Change described here, Ke Yishi Intersecting angle change, or mutually give parallel between switching.For example, the intersecting of the stable state under certain special angle can To be changed into the unstable state of other angles or face state or instantaneous intersecting, it is also possible to be changed into unstable state or face state or instantaneously parallel. Again for example, the parallel of stable state can be changed into unstable state at any angle or face state or instantaneous intersecting, and this unstable state or Face state or instantaneous intersecting angle is not unique.

The suspension fork mechanism that above-described embodiment is provided goes for front suspension and the rear suspension of automobile.Correspondingly, another In individual embodiment, there is provided a kind of automobile, including front suspension and rear suspension, also, in the front suspension and the rear suspension At least one includes the suspension fork mechanism that above-described embodiment is provided.

Front suspension and rear suspension are borne by the jump up and down of wheel, and the partial function can correspond to vehicle body connecting portion 10 and wheel The relative translational movement of the sliding mode that is realized by coupling between axle connecting portion 20.

Also, front suspension will undertake the small toe-in that the steering of wheel, rear suspension will undertake wheel, the partial function is permissible Moved by coupling the hinge of the sliding mode that realizes corresponding between vehicle body connecting portion 10 and wheel shaft connecting portion 20.Wherein, by Have clearly a need for much larger than small prenex degree of freedom scope in wheel steering, therefore, when all including in front suspension and rear suspension When stating the suspension fork mechanism that embodiment is provided, the relative rotation between vehicle body connecting portion 10 and wheel shaft connecting portion 20 is in front suspension Limit range needs the limit more than the relative rotation between vehicle body connecting portion 10 and the wheel shaft connecting portion 20 in rear suspension Scope.

Difference for this limit range, it is only necessary to adjust the characteristic of the first couplant 51 and the second couplant 52 Can achieve, and the frame structure of suspension fork mechanism need not be adjusted.It can be seen that, the suspension fork mechanism that above-described embodiment is provided is for front suspension With rear suspension, there is versatility.

Presently preferred embodiments of the present invention is the foregoing is only, not in order to limit the present invention, all essences in the present invention Within god and principle, any modification, equivalent substitution and improvement that is done etc., should be included within the scope of protection of the invention.

Claims

1. a kind of suspension fork mechanism, it is characterised in that the suspension fork mechanism includes：

Vehicle body connecting portion（10）；

Wheel shaft connecting portion（20）；

First guide part（31）, first guide part（31）It is fixed on the vehicle body connecting portion（10）；

Second guide part（32）, second guide part（32）It is fixed on the wheel shaft connecting portion（20）；

First fitting portion（41）, the first fitting portion（41）It is fixed on the wheel shaft connecting portion（20）, and lead with described first To portion（31）Chimeric；

Second fitting portion（42）, the second fitting portion（42）It is fixed on the vehicle body connecting portion（10）, and lead with described second To portion（32）Chimeric；

First intermediate medium（51）, first intermediate medium（51）In the first fitting portion（41）With first guide part （31）Between first be fitted together to node（N1）Place provides degree of freedom, to allow described first to be fitted together to node（N1）Embedding with described first Conjunction portion（41）With first guide part（31）Between with respect to slip along first guide part（31）Axis movement, institute State the first guide part（31）Axis with described first be fitted together to node（N1）For spot wobble and the first fitting portion（41） With first guide part（31）Around first guide part（31）Axis relatively rotate；

Second intermediate medium（52）, second intermediate medium（52）In the second fitting portion（42）With second guide part （32）Between second be fitted together to node（N2）Place provides degree of freedom, to allow described second to be fitted together to node（N2）Embedding with described second Conjunction portion（42）With second guide part（32）Between relative slip along second guide part（32）Axis movement, described Second guide part（32）Axis with described second be fitted together to node（N2）For spot wobble and the second fitting portion（42）With Second guide part（32）Around second guide part（32）Axis relatively rotate.

2. suspension fork mechanism according to claim 1, it is characterised in that the vehicle body connecting portion（10）Connect with the wheel shaft Portion（20）Between relative translational movement, by first intermediate medium（51）With second intermediate medium（52）The degree of freedom of offer Collaboration is constrained to the sliding motion of axle centered on the instantaneous axis of oscillation of the automobile for applying the suspension fork mechanism, wherein, described Instantaneous axis of oscillation is limited by the suspension longitudinal direction Instantaneous center of the automobile and the horizontal Instantaneous center of suspension.

3. suspension fork mechanism according to claim 2, it is characterised in that the instantaneous axis of oscillation is in the length of the automobile Or positioned at infinite point on width.

4. suspension fork mechanism according to claim 2, it is characterised in that the instantaneous axis of oscillation is in the length of the automobile Near the front portion of the automobile or rear portion on direction.

5. suspension fork mechanism according to claim 2, it is characterised in that the instantaneous axis of oscillation is in the width of the automobile Positioned at the inner or outer side of the automobile on direction.

6. suspension fork mechanism according to claim 1, it is characterised in that the vehicle body connecting portion（10）Connect with the wheel shaft Portion（20）Between relative rotation, by first intermediate medium（51）With second intermediate medium（52）The degree of freedom of offer Collaboration is constrained to be fitted together to node through described first（N1）Node is fitted together to described second（N2）Axis centered on axle conjunction Page motion.

7. suspension fork mechanism according to claim 1, it is characterised in that first intermediate medium（51）In described second Between medium（52）At least one of include spherical hinge or flexible liner.

8. suspension fork mechanism according to claim 1, it is characterised in that

The vehicle body connecting portion（10）With the wheel shaft connecting portion（20）It each is formed as rigid cage；

First guide part（31）It is formed rigid rod and is assemblied in form the vehicle body connecting portion（10）Rigid support Frame；

Second guide part（32）It is formed rigid rod and is assemblied in form the wheel shaft connecting portion（20）Rigid support Frame；

The first fitting portion（41）Be formed to cover hole and with form the wheel shaft connecting portion（20）Rigid cage one Molding；

The second fitting portion（42）Be formed to cover hole and with form the vehicle body connecting portion（10）Rigid cage one Take shape in or be assemblied in form the vehicle body connecting portion（10）Rigid cage.

9. a kind of automobile, it is characterised in that including front suspension and rear suspension, also, in the front suspension and the rear suspension At least one includes the suspension fork mechanism as any one of claim 1 to 8.

10. automobile according to claim 9, it is characterised in that all include in the front suspension and the rear suspension described Suspension fork mechanism, also, the vehicle body connecting portion（10）With the wheel shaft connecting portion（20）Between relative rotation in the front overhang Limit range in frame, more than the vehicle body connecting portion（10）With the wheel shaft connecting portion（20）Between relative rotation described Limit range in rear suspension.