A kind of ellipse driving wheel
Technical field
The invention belongs to automobile drive axle technical field more particularly to a kind of ellipse driving wheels.
Background technique
The wheel of car has used pure circle wheel at present, and circular wheel structure simple realization as wheel can not generation
The effect replaced.For car, wheel diameter is bigger and width is bigger, bigger with the producible stiction in ground, therefore
Brake and accelerating ability are stronger.When body of a motor car requires bodywork height to want small, wheel diameter can only be reduced and increase wheel
Width, but the increase of wheel width will occupy the horizontal space of vehicle body, it will greatly influence car passenger space or
The normal design in engine space is interfered, one kind can reduce bodywork height and the lesser wheel of width is that have very much must so designing
It wants.
The present invention design a kind of ellipse driving wheel solve the problems, such as it is as above.
Summary of the invention
To solve drawbacks described above in the prior art, the present invention discloses a kind of ellipse driving wheel, it is using following skill
Art scheme is realized.
A kind of ellipse driving wheel, it is characterised in that: it includes backboard, collateral ear, intermediate trunnion, rubber ring, stretches outside
Set, flexible interior bar, elliptic orbit, balance wheel, drive shaft, vehicle body supporting plate, shock-absorbing sleeve, damping spring, decoupling rod, decoupling rod support,
It is rotary connector, vehicle body support sleeve, guide groove, track shaft set, intermediate trunnion support, telescopic hole, annular groove, interior bar balance staff, oblique
Face, diametric plane, pendulum hole, card hole, wherein drive shaft one end is provided with annular groove, and seven interior bar balance staffs are circumferentially uniformly mounted to two slot of sliding slot
On wall, it is mounted on flexible interior bar on each interior bar balance staff, housing lower end of stretching has telescopic hole, and each flexible interior bar is inserted in
In the telescopic hole of corresponding flexible housing, each flexible housing top is mounted on guide groove;There is circular hole and installation among backboard
On track shaft set, elliptic orbit is mounted on the outer edge surface of backboard, and seven guide grooves are slidably matched with elliptic orbit;Each
Intermediate trunnion is equipped with by the support of intermediate trunnion on the outside of guide groove, seven intermediate trunnions pass through collateral ear be equipped with it is same ellipse
Round rubber ring, intermediate trunnion form hinge with corresponding collateral ear;Equably there is seven teeth, and the tooth of each tooth on balance wheel
Sharp two sides all have inclined-plane, and inclined-plane has diametric plane close to center of circle direction, and aspectant diametric plane is symmetrical between adjacent teeth;Seven
Six tooth sockets in seven tooth sockets between tooth all have pendulum hole, and six flexible interior bars in seven flexible interior bars both pass through relatively
The pendulum hole answered puts 1.5 times that the length that hole cross section is its rectangular long side is the long side length of flexible interior bar cross section, puts Kong Heng
The length of section short side is identical as the bond length of flexible interior bar cross section;Seven tooth sockets remove six teeth with identical pendulum hole
After slot, a remaining tooth socket has card hole, and a remaining flexible interior bar passes through card hole, size, the shape of card hole cross section
It is identical with size, the shape of flexible interior bar cross section;Vehicle body support sleeve is mounted on track shaft by rotary connector
It puts on, decoupling rod support is mounted on vehicle body support sleeve, and decoupling rod is mounted in decoupling rod support, and shock-absorbing sleeve is nested in damping
On bar outer edge surface, vehicle body supporting plate is mounted on shock-absorbing sleeve top;Damping spring is nested on the outside of decoupling rod and shock-absorbing sleeve, and damping bullet
Spring one end is connected on the downside of vehicle body supporting plate, and the other end is connected in decoupling rod support.
As the further improvement of this technology, above-mentioned rotary connector includes baffle ring, outer rim ring, snap ring, apical ring, wherein blocking
Ring is mounted on track shaft and puts on, and apical ring is mounted on vehicle body support sleeve one end, and outer rim ring is mounted on the outer edge surface of apical ring, gear
Ring is mounted on outer rim ring side, snap ring between apical ring and baffle ring and snap ring two sides respectively with apical ring and baffle ring sliding contact.
As the further improvement of this technology, above-mentioned vehicle body support sleeve one end is equipped with mounting flange.
Relative to traditional automobile drive axle technology, elliptic wheel designed for it is understood that wheel in the present invention
Bigger, bigger to the frictional force on ground in brake, braking quality is better, requires bodywork height lower in vehicle shell structure
In the case of, the diameter of typical circular wheel is restricted, and elliptic wheel can be with compared to the circular arc of common circle wheel and ground contact position
It is very big, that is, allow the minor axis direction of elliptic wheel to contact ground, at this time because minor axis is vertical direction, the whole height very little of wheel,
Meet the requirement of vehicle body, it is most important that it is bigger compared to ordinary wheel with the frictional force on ground, be relatively beneficial to vehicle brake and
Accelerate;Wherein vehicle body is mounted on vehicle body support sleeve by damping spring, and shock-absorbing sleeve and decoupling rod nested designs are used to offset
Damping spring it is lateral stressed;Flexible interior bar, flexible housing, trunnion is driven to drive rubber by drive shaft in elliptic wheel design
Ring elliptical rotation, rubber ring and ground face contact reach traveling purpose, and drive shaft is driven by the transmission shaft on vehicle.Guide groove exists in invention
Slided on elliptic orbit, elliptic orbit is fixed on track shaft and puts on, the distance of guide groove distance center with elliptic orbit when
Variation is carved, the housing that stretches in movement stretches, and interior bar is mutually nested to adapt to elliptic orbit;After rubber ring is driven, rubber ring with it is ellipse
Connect with collateral ear between circular orbit by intermediate trunnion, rubber ring is installed and does elliptic motion at the position of collateral ear, rotation
Rubber ring during rotation the moment be in deformation in, to adapt to elliptic orbit.Guide groove on elliptic orbit in sliding process,
Changing by a small margin when rubber ring installs the angle of the position of collateral ear and the line of elliptical center, so design is flexible
Interior bar is mounted in the annular groove of drive shaft by interior bar balance staff, has adapted between flexible interior bar the purpose of angle change by a small margin.
The balance wheel of installation on the driving shaft plays the role of auxiliary drive and support reinforcing, embodies are as follows: flexible interior bar both passes through pendulum
Pendulum hole or card hole on wheel, pendulum boring ratio stretches, and interior bar is big, and flexible interior bar can move in pendulum hole, and pendulum hole will not interfere flexible
The swing by a small margin of interior bar, and card hole size and flexible interior bar size are almost the same, play to the flexible interior bar for passing through card hole
The purpose swung by a small margin is limited, this design is so that the flexible interior bar for passing through card hole drives rubber ring to turn in whole process
It is dynamic.Although the flexible interior bar of small angle oscillation can play the purpose of driving elliptic wheel but because angle is small between flexible interior bar
Amplitude variation causes to drive fluctuation;So selected one fixed flexible interior bar driving elliptic wheel reduces stirring for driving force,
Assist the driving of elliptic wheel.Track shaft set connects vehicle body support sleeve by rotary connector, so that elliptic orbit drive is whole
A elliptic wheel can be rotated relative to vehicle body around vehicle body support sleeve, and elliptic wheel is recessed according to the protrusion on ground and occurs centainly
On the one hand the rotation for adapting to ground surface or terrain realizes that the contact area on better damping and increase and ground reaches superpower acceleration and subtracts
On the other hand fast ability can guarantee on elliptic wheel to be constant with the position of ground face contact, contact point is constant on elliptic wheel
Can be beneficial to the reinforcement design of oval wheel frame, guarantee elliptic wheel on the Impact direction of contact point structure with super strength with
Increase the safety of elliptic wheel, and other non-contact point frame intensity requirements can be mitigated, reduces weight.This invention ensures that
Contact of the minor axis position of elliptic wheel with ground, the upper side and lower side of elliptic wheel is minor axis, and stretch housing at this two positions
Degree nested with flexible interior bar is maximum, and flexible housing is extend on the diametric plane of balance wheel towards center side, and balance wheel is added by diametric plane
Strong upper and lower two sides stretch housing and it is flexible in rod structure rigidity.So design one side two sides above and below elliptic wheel of balance wheel
The purpose of reinforcement structure rigidity is played, the swing of a flexible interior bar is on the other hand limited, plays auxiliary drive elliptic wheel
Purpose.The design on inclined-plane is beneficial to flexible housing and protrudes into balance wheel.
Detailed description of the invention
Fig. 1 is elliptic wheel structural schematic diagram.
Fig. 2 is elliptic wheel side view.
Fig. 3 is elliptic wheel structure sectional view.
Fig. 4 is elliptic wheel shock-damping structure schematic diagram.
Fig. 5 is guide groove scheme of installation.
Fig. 6 is groove structure schematic diagram.
Fig. 7 is swing wheel structure schematic diagram.
Fig. 8 is that elliptic wheel adapts to road surface schematic illustration.
Figure label title: 1, backboard, 3, collateral ear, 4, intermediate trunnion, 5, rubber ring, 6, flexible housing, 7, it is flexible in
Bar, 8, elliptic orbit, 9, balance wheel, 10, drive shaft, 11, vehicle body supporting plate, 12, shock-absorbing sleeve, 13, damping spring, 14, mounting flange,
16, decoupling rod, 17, decoupling rod support, 18, rotary connector, 19, vehicle body support sleeve, 20, guide groove, 21, baffle ring, 22, outer rim
Ring, 23, snap ring, 24, track shaft set, 25, the support of intermediate trunnion, 26, telescopic hole, 27, annular groove, 28, interior bar balance staff, 29, tiltedly
Face, 30, diametric plane, 31, pendulum hole, 32, card hole, 33, apical ring.
Specific embodiment
As shown in Fig. 1,4, it includes backboard 1, collateral ear 3, intermediate trunnion 4, rubber ring 5, flexible housing 6, flexible interior bar
7, elliptic orbit 8, balance wheel 9, drive shaft 10, vehicle body supporting plate 11, shock-absorbing sleeve 12, damping spring 13, decoupling rod 16, decoupling rod support
17, rotary connector 18, vehicle body support sleeve 19, guide groove 20, track shaft set 24, intermediate trunnion support 25, telescopic hole 26, ring
Slot 27, interior bar balance staff 28, inclined-plane 29, diametric plane 30, pendulum hole 31, card hole 32, wherein as shown in fig. 6,10 one end of drive shaft is provided with ring
Slot 27, seven interior bar balance staffs 28 are circumferential to be uniformly mounted on two cell wall of sliding slot, as shown in Figure 2,3, on each interior bar balance staff 28
It is mounted on flexible interior bar 7,6 lower end of housing of stretching has telescopic hole 26, and each flexible interior bar 7 is inserted in flexible housing accordingly
In 6 telescopic hole 26, as shown in figure 5, each flexible 6 top of housing is mounted on guide groove 20;As shown in figure 4, having among backboard 1
Have circular hole and be mounted on track shaft set 24 on, elliptic orbit 8 is mounted on the outer edge surface of backboard 1, seven guide grooves 20 with it is ellipse
Circular orbit 8 is slidably matched;Each 20 outside of guide groove is equipped with intermediate trunnion 4, seven intermediate branch by intermediate trunnion support 25
Ear 4 is equipped with same oval rubber ring 5 by collateral ear 3, and intermediate trunnion 4 forms hinge with corresponding collateral ear 3;Such as figure
Shown in 7, equably there are seven teeth, and the tooth tip two sides of each tooth all have inclined-plane 29 on balance wheel 9, inclined-plane 29 is close to center of circle side
To with diametric plane 30, between adjacent teeth, aspectant diametric plane 30 is symmetrically;Six teeth in seven tooth sockets between seven teeth
Slot all has pendulum hole 31, and six flexible interior bars 7 in seven flexible interior bars 7 both pass through corresponding pendulum hole 31, and pendulum hole 31 is transversal
Face is that the length of its rectangular long side is 1.5 times of long side length of flexible 7 cross section of interior bar, puts the length of 31 cross section short side of hole
It is identical as the bond length of flexible 7 cross section of interior bar;It is remaining after seven tooth sockets remove six tooth sockets with identical pendulum hole 31
One tooth socket has a card hole 32, and a remaining flexible interior bar 7 passes through card hole 32, the size of 32 cross section of card hole, shape and stretches
Size, the shape of 7 cross section of contracting interior bar are identical;As shown in Figure 3,4, vehicle body support sleeve 19 is pacified by rotary connector 18
On track shaft set 24, decoupling rod support 17 is mounted on vehicle body support sleeve 19, and decoupling rod 16 is mounted on decoupling rod branch
In support 17, shock-absorbing sleeve 12 is nested on 16 outer edge surface of decoupling rod, and vehicle body supporting plate 11 is mounted on 12 top of shock-absorbing sleeve;Damping spring 13
It is nested in 12 outside of decoupling rod 16 and shock-absorbing sleeve, and 13 one end of damping spring is connected to 11 downside of vehicle body supporting plate, other end connection
In decoupling rod support 17.
As shown in figure 3, above-mentioned rotary connector 18 includes baffle ring 21, outer rim ring 22, snap ring 23, apical ring 33, wherein snap ring
23 are mounted on track shaft set 24, and apical ring 33 is mounted on 19 one end of vehicle body support sleeve, and outer rim ring 22 is mounted on apical ring 33
On outer edge surface, baffle ring 21 is mounted on 22 side of outer rim ring, and snap ring 23 is between apical ring 33 and baffle ring 21 and 23 two sides of snap ring are divided
Not with 21 sliding contact of apical ring 33 and baffle ring.
As shown in figure 4, above-mentioned 19 one end of vehicle body support sleeve is equipped with mounting flange 14.Mounting flange 14 is convenient for being fixed on
On vehicle body.
In conclusion in the present invention elliptic wheel designed for being rubbed to ground in brake it is understood that wheel is bigger
Wipe power it is bigger, braking quality is better, vehicle shell structure require the lower situation of bodywork height under, typical circular wheel it is straight
Diameter is restricted, and elliptic wheel can be very big compared to the circular arc of common circle wheel and ground contact position, that is, allows the minor axis side of elliptic wheel
To contact ground, at this time because minor axis is vertical direction, the whole height very little of wheel meets the requirement of vehicle body, most important
Be it is bigger compared to ordinary wheel with the frictional force on ground, be relatively beneficial to vehicle brake and acceleration;Wherein vehicle body passes through damping bullet
Spring 13 is mounted on vehicle body support sleeve 19, and shock-absorbing sleeve 12 and 16 nested designs of decoupling rod are used to offset the transverse direction of damping spring 13
Stress;Flexible interior bar 7, flexible housing 6, trunnion is driven to drive rubber ring 5 is oval to turn by drive shaft 10 in elliptic wheel design
Dynamic, rubber ring 5 and ground face contact reach traveling purpose, and drive shaft 10 is driven by the transmission shaft on vehicle.Guide groove 20 is ellipse in invention
It is slided on circular orbit 8, elliptic orbit 8 is fixed on track shaft set 24, and the distance of 20 distance center of guide groove is with elliptic orbit 8
Change constantly, the housing 6 that stretches in movement stretches, and interior bar 7 is mutually nested to adapt to elliptic orbit 8;After rubber ring 5 is driven, rubber
It is connected between rubber ring 5 and elliptic orbit 8 by intermediate trunnion 4 and collateral ear 3, rubber ring 5 is installed to be done at the position of collateral ear 3
Elliptic motion, the moment is in deformation the rubber ring 5 of rotation during rotation, to adapt to elliptic orbit 8.Guide groove 20 is in ellipse
On track 8 in sliding process, by a small margin when rubber ring 5 installs the angle of the position of collateral ear 3 and the line of elliptical center
Variation, so the flexible interior bar 7 of design is mounted in the annular groove 27 of drive shaft 10 by interior bar balance staff 28, adapt in flexible
The purpose of angle change by a small margin between bar 7.The balance wheel 9 being mounted in drive shaft 10 plays the work of auxiliary drive and support reinforcing
With concrete embodiment are as follows: flexible interior bar 7 both passes through pendulum hole 31 or card hole 32 on balance wheel 9, and pendulum hole 31 is bigger than flexible interior bar 7, stretches
Contracting interior bar 7 can move in pendulum hole 31, and pendulum hole 31 will not interfere the swing by a small margin of flexible interior bar 7, and 32 size of card hole with
Flexible 7 size of interior bar is almost the same, plays the purpose that limitation is swung by a small margin to the flexible interior bar 7 for passing through card hole 32, this
Design is so that the flexible interior bar 7 for passing through card hole 32 drives rubber ring 5 to rotate in whole process.Although small angle oscillation is flexible
Interior bar 7 can play the purpose of driving elliptic wheel because angle changes by a small margin between flexible interior bar 7, cause to drive Reeb
It is dynamic;So a selected fixed flexible interior bar 7 drives elliptic wheel to reduce stirring for driving force, the driving of elliptic wheel is assisted.Rail
Road shaft set 24 connects vehicle body support sleeve 19 by rotary connector 18, so that elliptic orbit 8 drives entire elliptic wheel can be with
Relative to vehicle body around vehicle body support sleeve 19 rotate, elliptic wheel according to ground protrusion recess and certain adaptation ground occurs
On the one hand the rotation of shape is realized better damping and is increased and the contact area on ground reaches superpower and adds as shown in a in Fig. 8
On the other hand fast slowing down power(SDP) can guarantee to be constant, contact point on elliptic wheel with the position of ground face contact on elliptic wheel
The constant reinforcement design that can be beneficial to oval wheel frame, guarantees elliptic wheel knot with super strength on the Impact direction of contact point
Structure can mitigate other non-contact point frame intensity requirements to increase the safety of elliptic wheel, reduce weight;If oval
Wheel does not rotate, and the contact point on the elliptic wheel as shown in the b in Fig. 8 and ground is variation, is not easy to elliptic wheel Frame Design.This hair
Contact of the bright minor axis position that ensure that elliptic wheel with ground, the upper side and lower side of elliptic wheel is minor axis, at this two positions
The flexible degree nested with flexible interior bar 7 of housing 6 is maximum, and flexible housing 6 is extend on the diametric plane 30 of balance wheel 9 towards center side,
Balance wheel 9 strengthens the rigidity of upper and lower two sides flexible housing 6 and flexible 7 structure of interior bar by diametric plane 30.So the design one of balance wheel 9
The purpose of reinforcement structure rigidity is played in aspect two sides above and below elliptic wheel, on the other hand limits the swing of a flexible interior bar 7,
Play the purpose of auxiliary drive elliptic wheel.The design on inclined-plane 29 is beneficial to flexible housing 6 and protrudes into balance wheel 9.