CN106427440B - Suspension fork mechanism and automobile - Google Patents
Suspension fork mechanism and automobile Download PDFInfo
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- CN106427440B CN106427440B CN201610937756.8A CN201610937756A CN106427440B CN 106427440 B CN106427440 B CN 106427440B CN 201610937756 A CN201610937756 A CN 201610937756A CN 106427440 B CN106427440 B CN 106427440B
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- suspension
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G1/00—Suspensions with rigid connection between axle and frame
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- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention discloses a kind of automobile of a kind of suspension fork mechanism and the application suspension fork mechanism.Linkage of the suspension fork mechanism that the present invention is provided using vehicle body connecting portion with wheel shaft connecting portion in the coupling of two chimeric nodes instead of traditional structure, thus more compact structure, it is easy to save the space taken, so that the space for being easy to take machinery is designed by minimum.Moreover, the suspension fork mechanism that the present invention is provided is due to compact conformation, thus make the distribution of mount point more intensive, so as to contribute to reduction assembly difficulty, lifting efficiency of assembling.In addition, the suspension fork mechanism that the present invention is provided for different automobile types architectural difference degree it is relatively low, can with structure with respect to unification main body frame adapt to various, so as to be easily achieved modularization and hardware and software platform, and the difficulty of multi-vehicle-type mixed production can be reduced and the efficiency of multi-vehicle-type mixed production is improved.
Description
Technical field
The present invention relates to a kind of automobile of a kind of suspension fork mechanism and the application suspension fork mechanism.
Background technology
With the development of automobile industry, modularization, hardware and software platform and the lightweight of automobile have turned into what automobile was researched and developed and produced
Important directions.And the suspension of automobile is as the important component of vehicle body, be related to the applying working condition of automobile, design research and development, zero
Part is manufactured and vehicle manufacture.
Traditional suspension coordinates the structure of support system using linkage mostly.Although historical development and technology by automobile
Upgrading innovation, the volume and structure of suspension have been greatly improved, but due to the limitation of principle and structure, the volume of suspension is
Through being difficult further to reduce.Thus, the larger space near wheel can all be taken by suspension, and especially automobile is laterally empty
Between, so as to be unfavorable for general arrangement and the man-machine environment of vehicle, it is difficult to designed by minimum in the space for taking machinery.
Moreover, coordinating the mount point of the traditional suspension for the structure for supporting system to disperse using linkage, filled in maintenance and complete machine
During matching somebody with somebody, generally require to be equipped with more than ten AGV for production line（Automated Guided Vehicle, automatic guiding transport
Car）Realize that high accuracy is lifted for scattered each mount point, so as to cause that assembly difficulty is big, efficiency is low.
In addition, traditional suspension can have larger difference due to the structure and assembling demand of linkage with the difference of vehicle
It is different, thus be difficult to realize modularization 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 modularization and hardware and software platform these aspects, the design research and development of suspension are inevitable
By many constraints, and the difficulty for thus causing design to be researched and developed is big, the cycle is long.
The 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 peaceful by minimizing design, contributing to reduction assembly difficulty and lifting efficiency of assembling and be easily achieved modularization
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 and chimeric with first guide part；
Second fitting portion, the second fitting portion is fixed on the vehicle body connecting portion and chimeric with second guide part；
First intermediate medium, first intermediate medium between the first fitting portion and first guide part
The free degree is provided at one chimeric node, to allow the described first chimeric node with the first fitting portion and first guide part
Between moved relative to slip along the axis of first guide part, the axis of first guide part it is chimeric with described first
Node is relative turn of the axis of branch spot wobble and the first fitting portion and first guide part around first guide part
It is dynamic；
Second intermediate medium, second intermediate medium between the second fitting portion and second guide part
The free degree is provided at two chimeric nodes, to allow the described second chimeric node with the second fitting portion and second guide part
Between the axis relative to slip along second guide part move, the axis of second guide part is with the described second chimeric section
Point for branch spot wobble and the second fitting portion and second guide part around second guide part relative turn of axis
It is dynamic.
Preferably, the relative translational movement between the vehicle body connecting portion and the wheel shaft connecting portion, is situated between by the described first centre
The free degree collaboration that matter and second intermediate medium are provided is constrained to the instantaneous swing of the automobile of the application suspension fork mechanism
The sliding motion of axle centered on axis, wherein, the instantaneous axis of oscillation by the automobile the longitudinal Instantaneous center of suspension
Limited with the horizontal Instantaneous center of suspension.
Alternatively, the instantaneous axis of oscillation is located at infinite point in the length or width of the automobile.Or,
The instantaneous axis of oscillation is on the length direction of the automobile close to the front portion or rear portion of the automobile.Or, it is described instantaneous
Axis of oscillation is located 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, is situated between by the described first centre
The free degree collaboration that matter and second intermediate medium are provided is constrained to by the described first chimeric node and described second embedding
The hinge motion of axle centered on the axis of conjunction node.
Alternatively, at least one in first intermediate medium and second intermediate medium includes 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 the rigid cage that rigid rod and being assemblied in form the vehicle body connecting portion to portion；Second guide part is by shape
The rigid cage that the wheel shaft connecting portion is formed as rigid rod and being assemblied in；The first fitting portion be formed set hole,
And be integrally formed with the rigid cage of the formation wheel shaft connecting portion；The second fitting portion is formed set hole and and shape
Rigid cage into the vehicle body connecting portion is shaped in or is assemblied in form the rigid cage of 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 described above with least one in the rear suspension.
Preferably, the suspension fork mechanism, also, the vehicle body connecting portion are included in the front suspension and the rear suspension
Limit range of the relative rotation in the front suspension between the wheel shaft connecting portion, more than the vehicle body connecting portion and institute
State the limit range relatively rotated in suspension in the rear between wheel shaft connecting portion.
It can be seen that, suspension fork mechanism in above-described embodiment is using vehicle body connecting portion and wheel shaft connecting portion in two chimeric nodes
Coupling instead of the linkage in traditional structure, thus more compact structure, it is easy to the horizontal stroke of the space of saving occupancy, especially automobile
To space, so as to be conducive to general arrangement and the man-machine environment of vehicle, it is easy to designed by minimum in the space for taking machinery.
Moreover, the suspension fork mechanism in above-described embodiment is due to compact conformation, thus make the distribution of mount point more intensive, especially
It is, for realizing that the crucial mount point of coupling is focusing only at two chimeric points, so as to contribute to reduction assembly difficulty, lifting
Efficiency of assembling.
In addition, the main body frame of the suspension fork mechanism in above-described embodiment is only connected by the vehicle body connecting portion and wheel shaft that intercouple
Socket part constitute, thus its for different automobile types architectural difference degree it is relatively low, can with structure with respect to unification main body
Framework adapts to various, it might even be possible to think that main body frame of the structure with respect to unification has versatility to different automobile types；And
And, the suspension fork mechanism in above-described embodiment only has vehicle body connecting portion and wheel shaft connecting portion the two main elements, thus it makes pair
The demand for molding quantity is relatively low.So as to which the suspension fork mechanism in above-described embodiment is easily achieved modularization and hardware and software platform, and can drop
The difficulty of low multi-vehicle-type mixed production and the efficiency for improving multi-vehicle-type mixed production.
Based on this, when needing to take into account space, assembling and modularization and these aspects of hardware and software platform simultaneously, above-mentioned implementation
Constraint suffered by the design research and development of suspension fork mechanism in example is certainly less than traditional suspension, and thus reduction designs the tired of research and development
Cycle that is difficult, shortening design research and development.
Brief description of the drawings
Fig. 1 be one embodiment in suspension fork mechanism decomposition texture schematic diagram；
Fig. 2 a to Fig. 2 c are the assembling structure schematic diagram of suspension fork mechanism as shown in Figure 1；
Fig. 3 is 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
Schematic diagram；
Fig. 4 a and Fig. 4 b illustrate for the first example of the intermediate medium in the suspension fork mechanism as shown in Fig. 1 and Fig. 2 a to Fig. 2 c
Figure；
Fig. 5 is the equivalent structure schematic diagram of the first example as shown in figures 4 a and 4b；
Fig. 6 extends schematic diagram for the equivalent structure of the first example as shown in figures 4 a and 4b；
Fig. 7 a and Fig. 7 b show for 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
It is intended to；
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 show for 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
It is intended to；
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；
The equivalent structure schematic diagram that Figure 12 a to Figure 12 c move for sliding as shown in figure 11.
Embodiment
For the objects, technical solutions and advantages of the present invention are more clearly understood, develop simultaneously embodiment referring to the drawings, right
The present invention is further described.
Fig. 1 and Fig. 2 a to Fig. 2 c are referred to, in one embodiment, a kind of suspension fork mechanism includes：Vehicle body connecting portion 10,
Wheel shaft connecting portion 20, the first guide part 31, first fitting portion 41, the second guide part 32, in the middle of second fitting portion 42 and first
The intermediate medium 52 of medium 51 and second.
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, even if moreover,
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 with similar to goat's horn bracing strut（Or referred to as knuckle）Structure.But can be with
Understand, wheel shaft connecting portion 20 is not limited to rigid cage, even if moreover, wheel shaft connecting portion 20 is formed rigid support
Frame, the structure of the rigid cage also not shown in limitation Fig. 1 and Fig. 2 a to Fig. 2 c.
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, first fitting portion 41 and the first guide part 31 chimeric part each other, can be with
It is considered the first chimeric 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, second fitting portion 42 and the second guide part 32 chimeric part each other, can be with
It is considered the second chimeric node N2.
The first guide part 31 is 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, the guide part 32 of first fitting portion 41 and second is separately positioned on relative the two of wheel shaft connecting portion 20
End, also, the side that the first guide part 31 levels off between the opposite end of vehicle body connecting portion 10 is upwardly extended, the second guide part
32 sides leveled off between the opposite end of wheel shaft connecting portion 20 are upwardly extended.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, phase from the axis c2 of the second guide part 32 to 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
State arrangement, the direction of relative movement between the first chimeric point N1 point N2 chimeric with second of main definitions, 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, therefore, and 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 it is above-mentioned it is 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, correspondingly, and first is oriented to
The Qian He between Qian He and the second guide part 32 and second fitting portion 42 between portion 31 and first fitting portion 41, then can be with
Refer to that the hole axle of cylinder or conical surface form coordinates or sphere or curved form are hinged cooperation, and be not particularly limited assembly technology
And the margin of tolerance.
It is understood that above-mentioned fixation, which refers to fixed both sides, is not present 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；For another example
In Fig. 1 and Fig. 2 a to Fig. 2 c, first fitting portion 41 and formed wheel shaft connecting portion 20 rigid cage be integrally formed, it is second embedding
Conjunction portion 42 is integrally formed with forming the rigid cage of vehicle body connecting portion 10, i.e. be integrally formed the fixation of mode.
Moreover, fixation of the fixation of assembling mode with being integrally formed mode can phase double replacement.For example, Fig. 3 is referred to, the
Two fitting portions 42 can also be with forming vehicle body connecting portion 10 rigid support split be molded, and realize the two it by assembling mode
Between fixation.
First intermediate medium 51 and the second intermediate medium 52 are respectively used to be fitted together to node in the first chimeric node N1 and second
The free degree is provided at N2, or, it is understood that it is respectively used to definition for the first intermediate medium 51 and the second intermediate medium 52
One chimeric node N1 and second is fitted together to the node N2 free degree.Wherein：
The free degree that first intermediate medium 51 is provided at the first chimeric node N1 places, can allow first be fitted together to node N1 with
Being moved relative to slip along the axis c1 of the first guide part 31 between the guide part 31 of first fitting portion 41 and first, can allow
The axis c1 of first guide part 31 is fitted together to node N1 as branch spot wobble using first, and, it can also allow for the He of first fitting portion 41
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 first guide part 31
Limit or constrain the relative freedom between the first guide part 31 and first fitting portion 41 in the radial direction；
The free degree that second intermediate medium 52 is provided at the second chimeric node N2 places, can allow second be fitted together to node N2 with
The axis c2 relative to slip along the second guide part 32 between the guide part 32 of second fitting portion 42 and second is moved, and can allow
The axis c2 of two guide parts 32 using the second chimeric node N2 as branch spot wobble, and, can also allow for second fitting portion 42 and the
Two guide parts 32 are relatively rotated around the axis c2 of the second guide part 32；Also, the second intermediate medium 52 is in the second guide part 32
Limit or constrain in the radial direction the relative freedom between the second guide part 32 and second fitting portion 42.
Certainly, it is above-mentioned moved along axis c1 or c2, axis c1 or c2 swing and around axis c1 or c1 rotate all be 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 is moved, 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, in the current embodiment of application, the axis of the axis c1 of the first guide part 31 and the second guide part 32
C2 can be overlapped with the axis of first fitting portion 41 and the axis of second fitting portion 42 respectively, can also respectively with first fitting portion
41 axis and the eccentric axis of second fitting portion 42 are set.
In order to more fully understand the first intermediate medium 51 and the second intermediate medium 52 respectively in the first chimeric node N1 and the
The role of two chimeric node N2, are illustrated with reference to three examples.
There is certain versatility or substitutability because the first chimeric node N1 and second is fitted together to node N2, 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：
The rigid inner sleeve 500a of spherical hinge 500 and guide part 30a or 30b are slidably matched, so that guide part 30a or 30b
The relative free sliding degree fm along guide part 30a or 30b axis is formed between fitting portion 40.Also, spherical hinge 500 is firm
Inner sleeve 500a is in guide part 30a or 30b cross-sectional direction for property（I.e. guide part 30a or 30b be in the radial direction）Limitation or
Constrain guide part 30a or the 30b free degree.Correspondingly, although in the 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 rectangular cross section, but because the difference is present in by restraint of liberty degree
Cross-sectional 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
The mating spherical surfaces of fitting portion 40.
Moreover, the outer rigid housing 500b of spherical hinge 500 in guide part 30a or 30b cross-sectional direction relative to chimeric
The translation in portion 40 is restrained or forbids.
Therefore, exist between the outer rigid housing 500b of spherical hinge 500 and the inner chamber of fitting portion 40 around 3 solid axes
Rotary freedom fr and fs；Wherein, 3 solid axes described here, are the seat overlapped with the axis of spherical hinge 500 respectively
Parameter, the reference axis perpendicular to Fig. 5 papers direction and the reference axis in the paper direction parallel to Fig. 5, and shown in Fig. 5
Fr represents the rotary freedom using the reference axis of the axis coincidence of spherical hinge 500 as axle center, and fs is represented with vertical and flat simultaneously
Row is in the rotary freedom that the reference axis of Fig. 5 paper is axle center.
So as to which, intermediate medium utilizes the rotary freedom fs that spherical hinge 500 is provided, can make guide part 30a or 30b with it is embedding
The opposing oscillatory free degree for fulcrum with spherical hinge 500 is formed between conjunction portion 40；Also, intermediate medium is using spherical hinge 500
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 axis rotates against the free degree centered on 30b axis.
In addition, referring to Fig. 6, above-mentioned first example can be further expanded, i.e. the rigid inner sleeve 500a of spherical hinge 500
It can be connected between outer rigid housing 500b by cushion collar 500c, 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 be resilient bushing）600 are
Example：
The rigid inner sleeve 600a of flexible liner 600 and guide part 30a or 30b are slidably matched so that guide part 30a or
The relative free sliding degree fm along guide part 30a or 30b axis is formed between 30b and fitting portion 40；Moreover, in guide part
In 30a or 30b cross-sectional direction（I.e. guide part 30a or 30b be in the radial direction）, the rigid inner sleeve of flexible liner 600
600a is limited or the free degree between constraint guide part 30a or 30b and fitting portion 40.Correspondingly, although the circle in Fig. 7 a is horizontal
There is the difference on cross sectional shape in the guide part 30b of the rectangular cross section in the guide part 30a and Fig. 7 b in section, but due to the difference
It is different to be 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 coordinates with the cylinder of fitting portion 40.Wherein：
When the cylinder coordinate fall within gap cooperation the margin of tolerance in when, the outer rigid housing 600b of flexible liner 600 with
The rotary freedom fr using the reference axis of the axis coincidence of flexible liner 600 as axle center can be formed between fitting portion 40, also,
Cushion collar 600c between the outer rigid housing 600b of flexible liner 600 and rigid inner sleeve 600a can be made soft by compressional deformation
Formed between the rigid inner sleeve 600a and fitting portion 40 of property bushing 600 using the reference axis of paper vertical and parallel to Fig. 5 as
The rotary freedom fs in axle center；
And when the cylinder coordinates and fallen within the margin of tolerance of interference fit, rotary freedom fr and fs pass through buffering
600c compressional deformation formation is covered between the rigid inner sleeve 600a and fitting portion 40 of flexible liner 600.
So as to which, intermediate medium utilizes the rotary freedom fs that flexible liner 600 is provided, can make guide part 30a or 30b with
The opposing oscillatory free degree for fulcrum with flexible liner 600 is formed between fitting portion 40；Also, intermediate medium utilizes flexible liner
The 600 rotary freedom fr provided for intermediate medium, can make to be formed between guide part 30a or 30b and fitting portion 40 to be oriented to
Axis rotates against the free degree centered on portion 30a or 30b axis.
Moreover, the cylinder between the outer rigid housing 600b and fitting portion 40 of flexible liner 600, which coordinates, 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 being led
It is restrained relative to the translation of fitting portion 40 or forbid on to portion 30a or 30b cross-sectional direction.
In addition, for above-mentioned cylinder coordinates the in the case of of falling within the margin of tolerance of interference fit, also in the presence of a kind of possible
Deformation, i.e. save the outer rigid housing 600b of flexible liner 600, and make cushion collar 600c for example, by techniques such as vulcanizations
Fitting portion 40 is attached to, at this point it is possible to which being interpreted as 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：
The rigid inner sleeve 700a of spherical hinge 700 and guide part 30a or 30b are slidably matched, so that guide part 30a or 30b
The relative free sliding degree fm along guide part 30a or 30b axis is formed between fitting portion 40.Also, spherical hinge 700 is firm
Inner sleeve 700a is in guide part 30a or 30b cross-sectional direction for property（I.e. guide part 30a or 30b be in the radial direction）Limitation or
Constrain guide part 30a or the 30b free degree.Correspondingly, although in the 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 rectangular cross section, but because the difference is present in by restraint of liberty degree
Cross-sectional 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 it is chimeric
The cylinder of portion 40 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 and the cushion collar 700c mating spherical surfaces of spherical hinge 700 are enclosed with 700b.
Moreover, the outer rigid housing 700b of spherical hinge 700 in guide part 30a or 30b cross-sectional direction relative to chimeric
The translation in portion 40 is restrained or forbids.
Therefore, the rigid inner sleeve 700a of the spherical hinge 700 and outer rigid housing 700b of spherical hinge 700 and fitting portion 40 is interior
There is the rotary freedom fr and fs around 3 solid axes between chamber；Wherein, 3 solid axes described here, respectively
It is reference axis, the reference axis and the paper parallel to Figure 10 perpendicular to Figure 10 papers direction overlapped with the axis of spherical hinge 700
The reference axis in face direction, and the fr shown in Figure 10 represents the rotation using the reference axis of the axis coincidence of spherical hinge 700 as axle center
The free degree, fs represents the rotary freedom using the reference axis of paper vertical and parallel to Fig. 7 as axle center simultaneously.
So as to which, intermediate medium utilizes the rotary freedom fs that spherical hinge 700 is provided, can make guide part 30a or 30b with it is embedding
The opposing oscillatory free degree for fulcrum with spherical hinge 700 is formed between conjunction portion 40；Also, intermediate medium is using spherical hinge 700
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 axis rotates against the free degree centered on 30b axis.
By examples detailed above, provide as described above to be fitted together in the first chimeric node N1 and second at node N2
The self structure of the free degree, the first intermediate medium 51 and the second intermediate medium 52 can arbitrarily be set, and be not limited to certain
Specific structure or element.
Also, in above-mentioned example, rigid inner sleeve 500a, 600a and 700a axis are oriented to described previously first
The axis c2 of the axis c1 in portion 31 or the second guide part 32 can be overlapping, and outer rigid housing 600b, 600b and 700b
Axis then can be overlapping with the axis of first fitting portion 41 described previously or second fitting portion 42.
Figure 11 is referred to, based on the first intermediate medium 51 and the second intermediate medium 52 respectively in the first chimeric node N1 and the
The free degree for providing or defining at two chimeric node N2, the first chimeric node N1 and second is fitted together to node N2 can be respectively along Fig. 9
Shown track S1 and S2 movement, makes the relative translational movement that sliding mode is formed 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 using 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 relative to the sliding of vehicle body connecting portion 10.
That is, the relative translational movement formed between vehicle body connecting portion 10 and wheel shaft connecting portion 20, by the first intermediate medium 51 and
The free degree collaboration that two intermediate mediums 52 are provided is constrained to centered on the instantaneous axis of oscillation using the automobile of the suspension fork mechanism
The sliding motion of axle.
Instantaneous axis of oscillation described here, can be longitudinally instantaneous by the suspension of automobile according to the definition of automotive field
The centre of motion and the horizontal Instantaneous center of suspension are limited, i.e. instantaneous axis of oscillation may be considered the longitudinal transient motion of suspension
Center and the line of the horizontal Instantaneous center of suspension.
Moreover, 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. include sky
Between antarafacial situation and there is a situation where intersection point）, but due to the presence of the first intermediate medium 51 and the second intermediate medium 52, by
The movement interference for intersecting in axis c1 with c2 and being likely to form to vehicle body connecting portion 10 and wheel shaft connecting portion 20, can be by first
Between the intermediate medium 52 of medium 51 and second provide the free degree eliminate, make sliding between vehicle body connecting portion 10 and wheel shaft connecting portion 20
The relative translational movement of mode can be realized by the two coupling at the first chimeric chimeric node N2 of node N1 and second.
Wherein, as figure 12 a shows, when the first guide part 31 axis c1 and the second guide part 32 axis c2 spatially
Intersecting, instantaneous axis of oscillation Ci can be located at the side of the dorsad wheel shaft connecting portion 20 of vehicle body connecting portion 10（It 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（It can be understood as the outside on the width of automobile）, i.e. it is 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 it is upper parallel, now, because there is the possibility disturbed, thus this place in the axis c1 of the first guide part 31 and the second guide part 32
It is parallel under the parallel simply a kind of stable state stated, rather than constant absolute normality is kept, thus in the axis of the first guide part 31
When c1 is spatially parallel with the axis c2 of the second guide part 32, 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 the first chimeric node N1 and second be fitted together to the coupling at node N2 come
Realize.Now, Figure 12 c are referred to, instantaneous axis of oscillation Ci can consider on the width of automobile positioned at either side
Infinite point.
Figure 12 a to Figure 12 c are the perspective views on motor vehicle length direction, are existed 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
Line Ci position, the more importantly embodiment on the width of automobile.
Certainly, axis c1 and c2 intersect or the parallel and its instantaneous axis of oscillation Ci position that limits automobile length
There can also be similar embodiment on direction.That is, instantaneous axis of oscillation Ci can be located at nothing in the length or width of automobile
Poor distant place or the front portion or the rear portion close to automobile of close automobile.Also, instantaneous axis of oscillation Ci position is in the length of automobile
Spend direction embodiment from the embodiment on the width of automobile can with it is identical, can also be different.
As a kind of preferred scheme, on the width of automobile, axis c1 and c2 phase intersecting and merging 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 nothing
Poor distant place.It is understood that so-called preferred scheme have compared to other schemes in practical application it is further more excellent
The scheme of effect, is not that necessity of present example is limited.
Figure 11 is please reviewed again, and the first chimeric node N1 and second is fitted together to node N2 and may be used as vehicle body connecting portion 10 and wheel shaft
The fulcrum of relative rotation between connecting portion 20, and it is embedding first respectively based on the first intermediate medium 51 and the second intermediate medium 52
Close node N1 and second and the free degree for providing or defining at node N2 is provided, between vehicle body connecting portion 10 and wheel shaft connecting portion 20
Relatively rotate, the free degree collaboration provided by the first intermediate medium 51 and the second intermediate medium 52 is constrained to be fitted together to by first
Node N1 and second is fitted together to the hinge motion R0 of axle centered on node N2 axis c0, and such hinge motion R0 is obviously also
It is fitted together to the coupling at node N2 to realize in the first chimeric node N1 and second by vehicle body connecting portion 10 and wheel shaft connecting portion 20
'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 free degree that the first intermediate medium 51 and the second intermediate medium 52 are provided, above-mentioned stable state can
To be changed 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 it is parallel between switching.For example, the intersecting of stable state under some special angle can
To be changed into the unstable state of other angles or face state or instantaneous intersecting, unstable state can also be changed into or face state or instantaneous parallel.
For another 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 instantaneously intersecting angle is not unique.
The suspension fork mechanism that above-described embodiment is provided goes for the front suspension and rear suspension of automobile.Correspondingly, another
There is provided in a kind of automobile, including front suspension and rear suspension, also, the front suspension and the rear suspension in individual embodiment
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
By the relative translational movement for the sliding mode for coupling realization between axle connecting portion 20.
Also, front suspension, which will undertake the steering of wheel, rear suspension, will undertake the small toe-in of wheel, the partial function can be with
Moved corresponding to the hinge for the sliding mode realized between vehicle body connecting portion 10 and wheel shaft connecting portion 20 by coupling.Wherein, by
Have clearly a need for being much larger than small prenex free degree scope in wheel steering, it is therefore, upper when including in front suspension and rear suspension
When stating the suspension fork mechanism of embodiment offer, the relative rotation between vehicle body connecting portion 10 and wheel shaft connecting portion 20 is in front suspension
Limit range needs the limit of the relative rotation in rear suspension being more than between vehicle body connecting portion 10 and the wheel shaft connecting portion 20
Scope.
For the difference of this limit range, it is only necessary to adjust the characteristic of the first couplant 51 and the second couplant 52
It can be achieved, 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
There is versatility with rear suspension.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements done etc. should be included within the scope of protection of the invention.
Claims (10)
1. a kind of suspension fork mechanism, it is characterised in that the suspension fork mechanism includes：
Vehicle body connecting portion（10）With wheel shaft connecting portion（20）, the vehicle body connecting portion（10）With the wheel shaft connecting portion（20）Equal quilts
Be formed as rigid cage；
First guide part（31）, first guide part（31）It is fixed on the vehicle body connecting portion（10）, and described first lead
To portion（31）Axis（c1）To the vehicle body connecting portion（10）Opposite end between line direction draw close；
Second guide part（32）, second guide part（32）It is fixed on the wheel shaft connecting portion（20）, and described second lead
To portion（32）Axis（c2）To the wheel shaft connecting portion（20）Opposite end between line direction draw close；
First fitting portion（41）, the first fitting portion（41）It is fixed on the wheel shaft connecting portion（20）And led with described first
To portion（31）It is chimeric；
Second fitting portion（42）, the second fitting portion（42）It is fixed on the vehicle body connecting portion（10）And led with described second
To portion（32）It is chimeric；
First intermediate medium（51）, first intermediate medium（51）In the first fitting portion（41）With first guide part
（31）Between the first chimeric node（N1）Place provides the free degree, to allow the described first chimeric node（N1）It is embedding with described first
Conjunction portion（41）With first guide part（31）Between with respect to slip along first guide part（31）Axis（c1）Move
Dynamic, first guide part（31）Axis（c1）With the described first chimeric node（N1）For branch spot wobble and described first
Fitting portion（41）With first guide part（31）Around first guide part（31）Axis（c1）Relatively rotate；
Second intermediate medium（52）, second intermediate medium（52）In the second fitting portion（42）With second guide part
（32）Between the second chimeric node（N2）Place provides the free degree, to allow the described second chimeric node（N2）It is embedding with described second
Conjunction portion（42）With second guide part（32）Between relative slip along second guide part（32）Axis（c2）Mobile,
Second guide part（32）Axis（c2）With the described second chimeric node（N2）It is that branch spot wobble and described second are fitted together to
Portion（42）With second guide part（32）Around second guide part（32）Axis（c2）Relatively rotate.
2. suspension fork mechanism according to claim 1, it is characterised in that the vehicle body connecting portion（10）With wheel shaft connection
Portion（20）Between relative translational movement, by first intermediate medium（51）With second intermediate medium（52）The free degree of offer
Collaboration is constrained to the sliding motion of the axle centered on the instantaneous axis of oscillation of the automobile of the application suspension fork mechanism, wherein, it is described
Instantaneous axis of oscillation is limited by the longitudinal Instantaneous center of suspension and the horizontal Instantaneous center of suspension of the automobile.
3. suspension fork mechanism according to claim 2, it is characterised in that length of the instantaneous axis of oscillation in the automobile
Or it is located at infinite point on width.
4. suspension fork mechanism according to claim 2, it is characterised in that length of the instantaneous axis of oscillation in the automobile
Close to the front portion or rear portion of the automobile on direction.
5. suspension fork mechanism according to claim 2, it is characterised in that width of the instantaneous axis of oscillation in the automobile
It is located 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）With wheel shaft connection
Portion（20）Between relative rotation, by first intermediate medium（51）With second intermediate medium（52）The free degree of offer
Collaboration is constrained to by the described first chimeric node（N1）With the described second chimeric node（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）In at least one include spherical hinge or flexible liner.
8. suspension fork mechanism according to claim 1, it is characterised in that
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）It is formed set hole and with forming the wheel shaft connecting portion（20）Rigid cage one
Shaping；
The second fitting portion（42）It is formed set hole and with forming 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 in front suspension and rear suspension, also, 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 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610937756.8A CN106427440B (en) | 2016-10-25 | 2016-10-25 | Suspension fork mechanism and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610937756.8A CN106427440B (en) | 2016-10-25 | 2016-10-25 | Suspension fork mechanism and automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106427440A CN106427440A (en) | 2017-02-22 |
| CN106427440B true CN106427440B (en) | 2017-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610937756.8A Active CN106427440B (en) | 2016-10-25 | 2016-10-25 | Suspension fork mechanism and automobile |
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| CN (1) | CN106427440B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1241228B (en) * | 1990-05-15 | 1993-12-29 | Fiat Auto Spa | SUSPENSION WITH INTERCONNECTED SWINGING ARMS FOR A WHEEL OF A VEHICLE. |
| JP5250496B2 (en) * | 2009-07-29 | 2013-07-31 | 本田技研工業株式会社 | Vehicle suspension system |
| CN201604491U (en) * | 2010-01-19 | 2010-10-13 | 上海锦奔汽车***有限公司 | Maintenance-free type ball hinge for upper control arm and lower control arm of independent suspension system |
| CN105480040B (en) * | 2015-12-15 | 2019-04-05 | 方盛车桥（柳州）有限公司 | Independent suspension rack front axle with virtual stub structure |
| CN105856996B (en) * | 2016-03-30 | 2018-05-22 | 北京航天发射技术研究所 | A kind of independent suspension system for superduty chassis |
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2016
- 2016-10-25 CN CN201610937756.8A patent/CN106427440B/en active Active
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| Publication number | Publication date |
|---|---|
| CN106427440A (en) | 2017-02-22 |
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