CN207190695U - A kind of foldable suspension fork mechanism applied to distributed-driving electric automobile - Google Patents
A kind of foldable suspension fork mechanism applied to distributed-driving electric automobile Download PDFInfo
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- CN207190695U CN207190695U CN201720687670.4U CN201720687670U CN207190695U CN 207190695 U CN207190695 U CN 207190695U CN 201720687670 U CN201720687670 U CN 201720687670U CN 207190695 U CN207190695 U CN 207190695U
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- connecting rod
- quarter butt
- arresting disk
- hydraulic cylinder
- wheel
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Abstract
The utility model provides a kind of foldable suspension fork mechanism applied to distributed-driving electric automobile, is made up of lower control arm, hydraulic cylinder, first connecting rod, position-arresting disk/limiting plate and second connecting rod；One end of lower control arm is connected with vehicle body ball pivot, the knuckle ball pivot connection of the other end and wheel；The tailpiece of the piston rod of hydraulic cylinder is articulated between first connecting rod and second connecting rod, and revolute pair is formed between three；The other end of first connecting rod is connected with vehicle body ball pivot, and the other end of second connecting rod and the other end of lower control arm are hinged, and the cylinder body end of hydraulic cylinder is connected with vehicle body ball pivot；Position-arresting disk/limiting plate is arranged on first connecting rod and second connecting rod hinged place, to limit the relative rotation between first connecting rod and second connecting rod, realizes the restriction to the vertical or horizontal position of wheel.The utility model solves the contradiction between big steering angle and preferable dynamic wheel positional parameter in conventional suspension designs, obtains more preferable control stability.
Description
Technical field
The utility model belongs to automotive suspension mechanism technology field, and in particular to one kind is applied to the distributed electronic vapour of driving
The foldable suspension fork mechanism of car.
Background technology
It is light in order to keep turning in current suspension design, it is desirable to have suitable kingpin offset (scrub radius,
That is horizontal range of the main pin axis in floor projection point and center of tire contact).If kingpin offset is larger, automobile can produce one
The individual larger torque around stub, steering operation, while the torque could be completed by needing during steering driver to apply larger power
Also tire wear can be increased, had a negative impact to braking.
If it is intended to meeting the condition of Kingpin inclination and kingpin offset simultaneously in existing suspension design, master will be made
The space position of pin lower extreme point be in the inner space of automotive wheel, in design structure, for hanging containing horizontal underarm
Frame, overhanging underarm can on geometric space limiting wheel angle range, automobile can not be obtained larger steering angle.For this
A little suspensions (such as McPherson strut, wishbone suspension) are if only change locus of the suspension underarm relative to wheel, though energy
Bigger steering angle is accessed, but suspension unbalance stress can be caused, dynamic wheel positional parameter effect is bad；For no horizontal stroke
Holding wheel alignment parameter that can be relatively good in Suspension Deformation to the suspension of underarm, such as candle type suspension, using suitable knot
Structure can also obtain bigger steering angle, but candle type suspension unbalance stress, and side force is born by stub and stub sleeve completely,
Serious wear, and candle type suspension wheel alignment parameter has just been fixed in design substantially, will not be with the different fortune of automobile
Row operating mode is automatically adjusted, and dynamic characteristic is poor, is seldom used at present.So in existing suspension system designs process
In, big steering angle is often difficult to get both with preferable dynamic wheel positional parameter.
At present because the limitation of steering angle, the radius of turn of automobile often increase with the increase of steering angle, automobile
It is difficult to complete wide-angle steering or pivot stud in smaller space.
The content of the invention
For above-mentioned deficiency of the prior art, the utility model provides one kind and is applied to distributed-driving electric automobile
Foldable suspension fork mechanism, automobile is accomplished pivot stud or cross running, while automobile can be made to obtain in motion
Obtain preferable wheel/stub positional parameter.It is as follows with reference to Figure of description, the technical solution of the utility model：
A kind of foldable suspension fork mechanism applied to distributed-driving electric automobile, installed in vehicle body 8 and corresponding wheel
Between knuckle, it is characterised in that：
The foldable suspension fork mechanism is engaged the vertical or horizontal setting realized to wheel with steering mechanism；
The foldable suspension fork mechanism is by lower control arm 6, hydraulic cylinder 7, first connecting rod 9, position-arresting disk 10 and second connecting rod 11
Composition；
One end of the lower control arm 6 is connected with the ball pivot of vehicle body 8, the ball pivot of knuckle 3 connection of the other end and wheel；
The tailpiece of the piston rod of the hydraulic cylinder 7 is articulated between first connecting rod 9 and second connecting rod 11, is formed and rotated between three
It is secondary；The other end of the first connecting rod 9 is connected with the ball pivot of vehicle body 8, and the other end of the second connecting rod 11 is another with lower control arm 6
One end is hinged, and the cylinder body end of the hydraulic cylinder 7 is connected with the ball pivot of vehicle body 8；
The position-arresting disk 10 is arranged on first connecting rod 9 and the hinged place of second connecting rod 11, to limit the company of first connecting rod 9 and second
Relative rotation scope between bar 11；
Two cambered ways are provided with the end face of the position-arresting disk 10, two quarter butts are provided with position-arresting disk 10, it is described short
One end of bar is articulated with the centre bore of position-arresting disk 10, the other ends of two quarter butts by spiral shell peg or pin respectively with first connecting rod 9
It is connected with second connecting rod 11, the spiral shell peg or pin is moved in corresponding cambered way respectively, by first connecting rod 9 and second
The restriction of relative rotation between connecting rod 11, realize the restriction to the vertical or horizontal position of wheel.
The the first quarter butt slideway 9L and the second quarter butt slideway 11L of two arcs are provided with the end face of the position-arresting disk 10,
The side of position-arresting disk 10 is radially provided with two fan grooves, two fan grooves and the first quarter butt slideway 9L and the second quarter butt slideway
11L positions are corresponding；It is radially mounted in the fan groove of the side of position-arresting disk 10 to have the first quarter butt 9A, the first quarter butt 9A
One end be articulated with the centre bore 10P of position-arresting disk, first connecting rod 9 and the first quarter butt 9A is connected to by bolt or alignment pin
First quarter butt hole 9P, and the bolt or alignment pin are arranged in the first quarter butt slideway 9L, the first quarter butt 9A is with first connecting rod 9
Rotated along the first quarter butt slideway 9L；Radially mounted in the fan groove of the opposite side of position-arresting disk 10 to have the second quarter butt 11A, second is short
Bar 11A one end is articulated with the centre bore 10P of position-arresting disk, and the quarter butt 11A of second connecting rod 11 and second passes through bolt or positioning
Pin is connected to the second quarter butt hole 11P, and the second quarter butt 11A rotates along the second quarter butt slideway 11L with second connecting rod 11；
The position-arresting disk 10 is fixed on the company of first connecting rod 9 and second connecting rod 11 by the installation bolt in centre bore 10P
Meet place.
A kind of foldable suspension fork mechanism applied to distributed-driving electric automobile, installed in vehicle body 8 and corresponding wheel
Between knuckle, it is made up of lower control arm 6, hydraulic cylinder 7, first connecting rod 9, limiting plate 11B and second connecting rod 11；
One end of the lower control arm 6 is connected with the ball pivot of vehicle body 8, the ball pivot of knuckle 3 connection of the other end and wheel；
The tailpiece of the piston rod of the hydraulic cylinder 7 is articulated between first connecting rod 9 and second connecting rod 11, is formed and rotated between three
It is secondary；The other end of the first connecting rod 9 is connected with the ball pivot of vehicle body 8, and the other end of the second connecting rod 11 is another with lower control arm 6
One end is hinged, and the cylinder body end of the hydraulic cylinder 7 is connected with the ball pivot of vehicle body 8；
The limiting plate 11B be arranged on is connected with first connecting rod 9 on the second connecting rod 11 of one end, by with first connecting rod
9 interfere to limit the relative rotation scope between first connecting rod 9 and second connecting rod 11, by first connecting rod 9 and second
The restriction of relative rotation between connecting rod 11, realize the restriction to the vertical or horizontal position of wheel.
The steering mechanism being engaged with foldable suspension fork mechanism is described to exempt from drag link turning machine to exempt from drag link steering mechanism
Structure by reducing gear 15, steering power mechanism 16, damper sleeve 17, bush connecting rod 18, upper steering arm 19, lower steering arm 20,
Rack rod 21, rzeppa joint 22 and bearing 23 form；
The steering power mechanism 16 is by motor 16B and shaft coupling 16A is coaxially connected forms；The reducing gear 15 is by tooth
15A, leading screw 15B and nut 15C compositions are taken turns, wherein, the leading screw 15B and shaft coupling 16A are coaxially connected, and nut 15C is arranged on
On leading screw 15B, and nut 15C outer surface is machined with cylinder rack, and the central shaft of the gear 15A is vertical with leading screw 15B to be set
Put, gear 15A is meshed to form rack-and-pinion with nut 15C outer surface；
The rzeppa joint 22, bearing 23 and damper sleeve 17 are sequentially arranged under reducing gear 15 from top to bottom
On the central shaft of side, described one end of bush connecting rod 18 is fixedly connected in the side wall of damper sleeve 17, the bush connecting rod 18
The other end, upper steering arm 19, one end of lower steering arm 20 and rack rod 21 are hinged successively, and the other end of rack rod 21 is with turning
3 it is fixedly connected to section, the upper steering arm 19 and lower steering arm 20 are along the axially arranged of shock absorber 4.
Hydraulic cylinder locking system is installed on the hydraulic cylinder 7.
Compared with prior art, the beneficial effects of the utility model are：
1st, the structure letter of a kind of foldable suspension fork mechanism applied to distributed-driving electric automobile described in the utility model
It is single, occupy little space, larger steering angle can be obtained in vehicle static or low speed, improves the mobility of automobile and passing through property.
2nd, a kind of structure of foldable suspension fork mechanism applied to distributed-driving electric automobile described in the utility model is tight
Gather, there is appropriate kingpin offset, turn to light, insensitivity raising.
3rd, a kind of foldable suspension fork mechanism applied to distributed-driving electric automobile described in the utility model obtain compared with
On the basis of big steering angle, additionally it is possible to more suitable wheel alignment parameter is provided, solves in conventional suspension designs and turns to greatly
Contradiction between angle and preferable dynamic wheel positional parameter, obtains more preferable control stability.
4th, a kind of foldable suspension fork mechanism applied to distributed motor automobile described in the utility model is more traditional outstanding
Frame is preferable compared to stress condition.
5th, a kind of foldable suspension applied to distributed motor automobile described in the utility model improves Automobile Design
The free degree, while the part such as rod member, rubber bushing is conveniently replaceable.
Brief description of the drawings
Fig. 1 is the stereochemical structure that foldable suspension fork mechanism described in the utility model is connected with transverse tie rod type steering mechanism
Schematic diagram；
Fig. 2 is first connecting rod, second connecting rod, hydraulic cylinder and position-arresting disk in foldable suspension fork mechanism described in the utility model
Between connection relationship diagram；
Fig. 3 is the external structure schematic diagram of position-arresting disk in foldable suspension fork mechanism described in the utility model；
Fig. 4 is the internal structure schematic diagram of position-arresting disk in foldable suspension fork mechanism described in the utility model；
Fig. 5 a are in foldable suspension fork mechanism described in the utility model, during using position-arresting disk, structure when suspension is unfolded
Principle sketch；
Fig. 5 b are in foldable suspension fork mechanism described in the utility model, and during using position-arresting disk, suspension completes the knot after folding
Structure principle sketch；
Fig. 6 is in foldable suspension fork mechanism described in the utility model, and during using position-arresting disk, suspension completes part three after folding
Tie up structural representation；
Fig. 7 is in foldable suspension fork mechanism described in the utility model, during using limiting plate, partial 3-D when suspension is unfolded
Structural representation；
Fig. 8 is in foldable suspension fork mechanism described in the utility model, during using limiting plate, part planar when suspension is unfolded
Structural representation；
Fig. 9 is in foldable suspension fork mechanism described in the utility model, during using limiting plate, partial 3-D when suspension folds
Structural representation；
Figure 10 is shown using the external structure for exempting from drag link steering mechanism of foldable suspension fork mechanism described in the utility model
It is intended to；
Figure 11 is shown using the internal structure for exempting from drag link steering mechanism of foldable suspension fork mechanism described in the utility model
It is intended to.
In figure：
1 wheel, 2 brake discs, the shock absorber of 3 knuckle 4,5 track rods,
6 lower control arms, 7 hydraulic cylinders, 8 vehicle bodies, 9 first connecting rods, 10 position-arresting disks,
11 second connecting rods, 12 wheel hub motors, 13 caliper bearings, 14 calipers, 15 reducing gears,
16 steering power mechanisms, 17 damper sleeves, 18 bush connecting rods, steering arm on 19,20 times steering arms,
21 rack rods, 22 rzeppa joints, 23 bearings；
The quarter butts of 9A first, the first quarter butts of 9P hole, 9L the first quarter butt slideway 10P centre bores, the quarter butts of 11A second,
11B limiting plates, the second quarter butts of 11P hole, 11L the second quarter butt slideways, 15A gears, 15B leading screws,
15C nuts, 16A shaft couplings, 16B motors.
Embodiment
For the technical solution of the utility model and its caused beneficial effect is expanded on further, with reference to Figure of description,
Specific embodiment of the present utility model is as follows：
As depicted in figs. 1 and 2, the utility model provides a kind of applied to the foldable outstanding of distributed-driving electric automobile
Frame mechanism, the foldable suspension fork mechanism are arranged between vehicle body 8 and the knuckle 3 at corresponding wheel, new in this applicable practicality
Foldable suspension fork mechanism described in type is traditional transverse tie rod type steering mechanism.In transverse tie rod type steering mechanism, driving is turned to
Power will be delivered to knuckle 3 to complete steering operation along track rod 5, and by ball pivot.The foldable suspension fork mechanism
McPherson strut or wishbone suspension structure can be used, in this embodiment, it is preferred that using McPherson strut, it is described
Foldable suspension fork mechanism is made up of lower control arm 6, hydraulic cylinder 7, first connecting rod 9, position-arresting disk 10 and second connecting rod 11.
One end of the lower control arm 6 is connected by oscillating bearing with the ball pivot of vehicle body 8, the other end and car of lower control arm 6
The ball pivot of knuckle 3 connection of wheel.
The first connecting rod 9 and second connecting rod 11 are by bolted splice, and the piston rod end of the hydraulic cylinder 7 is also by this
Bolted splice forms revolute pair between first connecting rod 9 and second connecting rod 11 between three；The position-arresting disk 10 is also by the spiral shell
Bolt is arranged on first connecting rod 9 and the outside of second connecting rod 11, to limit the relative rotation between first connecting rod 9 and second connecting rod 11.
The other end of the first connecting rod 9 is hinged with vehicle body 8 by oscillating bearing, the other end of the second connecting rod 11 with
The other end of lower control arm 6 is hinged, and the cylinder body end of the hydraulic cylinder 7 is connected by oscillating bearing with the ball pivot of vehicle body 8, and hydraulic cylinder
7 between lower control arm 6 and first connecting rod 9 and close to the side of lower control arm 6；The position-arresting disk is installed on first by bolt
The hinged place of connecting rod 9 and second connecting rod 11.Hydraulic cylinder locking system is also equipped with the hydraulic cylinder 7.
The cylinder body end of above-mentioned lower control arm 6, first connecting rod 9 and hydraulic cylinder 7 is connected by oscillating bearing and the ball pivot of vehicle body 8
Connect, in addition to using oscillating bearing, can also use the flexible connection modes such as bulb or rubber bushing to realize the ball pivot connection between part.
It is hollow structure on the inside of the both ends of the second connecting rod 11, adjacent rod member reserves space when being folded for suspension,
Avoid producing movement interference between rod member after folding.
Hydraulic cylinder 7 described in the utility model, on the premise of hydraulic drive condition is met, it is replaced by dual Piston hydraulic pressure
Cylinder.
Foldable suspension fork mechanism described in the utility model, without particular/special requirement, therefore can select fixed pincers to the species of brake
Disk brake, drum brake or disc brake with floating caliper.It is and described in the utility model as shown in figure 1, in the present embodiment
What foldable suspension fork mechanism was used cooperatively is disc brake with floating caliper, and the disc brake with floating caliper includes brake disc 2, caliper
14 and caliper bearing 13.The automobile of foldable suspension fork mechanism described in the utility model is installed, its shock absorber 4 passes through bolt
It is fixed on knuckle 3.Helical spring corresponding to shock absorber 4 is fixed in spring base, and spring base is connected by bolt and shock absorber 4
Connect.The underlying brace of shock absorber 4 is fixed on knuckle by sleeve and bolt with realizing.If it is desired, can be in shock absorber 4
Pillar below addition QS.Further, since foldable suspension fork mechanism described in the utility model is only related to existing
Suspension lower swing arm associated structures are improved, to the grade miscellaneous part of shock absorber 4 structure without other particular design, therefore full
On the premise of sufficient design requirement, wishbone suspension structure can be also used.
As shown in Figure 3 and Figure 4, the first quarter butt slideway 9L and second of two arcs is provided with the end face of the position-arresting disk 10
Quarter butt slideway 11L；First quarter butt slideway 9L and the second quarter butt slideway 11L and position-arresting disk 10 are concentric, on the side edge of position-arresting disk 10
Two fan grooves radially are provided with, described two fan grooves are corresponding with the first quarter butt slideway 9L and the second quarter butt slideway 11L positions；
Radially mounted one end for having the first quarter butt 9A, the first quarter butt 9A is articulated with spacing in the fan groove of the side of position-arresting disk 10
At the centre bore 10P of disk, the quarter butt 9A of first connecting rod 9 and first is connected to the first quarter butt hole 9P by bolt or alignment pin, and
The bolt or alignment pin are arranged in the first quarter butt slideway 9L, and the first quarter butt 9A is as first connecting rod 9 is along the first quarter butt slideway
9L is rotated；Radially mounted in the fan groove of the opposite side of position-arresting disk 10 to have the second quarter butt 11A, the second quarter butt 11A one end is same
Sample is articulated with the centre bore 10P of position-arresting disk, and second connecting rod 11 and the second quarter butt 11A is connected to by bolt or alignment pin
Second quarter butt hole 11P, the second quarter butt 11A rotate along the second quarter butt slideway 11L with second connecting rod 11.
Due to the first quarter butt hole 9P and the second quarter butt hole 11P presence, the first quarter butt 9A and the second quarter butt 11A only can be with
First connecting rod 9 and second connecting rod 11 make the rotation around centre bore 10P, both slewing areas by the first quarter butt slideway 9L and
Second quarter butt slideway 11L determines that the limit point at the first quarter butt slideway 9L and the second quarter butt slideway 11L both ends limits wheel and is in respectively
Horizontal longitudinal direction and in position during horizontal cross, i.e. when pushing away in the driving of hydraulic cylinder 7 and first connecting rod 9 and second connecting rod 11
Under dynamic, wheel is in longitudinally disposed, and when realizing longitudinal driving state, first connecting rod 9 and second connecting rod 11 arrive separately at the first quarter butt
Slideway 9L and the limit point of second quarter butt slideway 11L one end；When in the driving of hydraulic cylinder 7 and first connecting rod 9 and second connecting rod 11
Pulling under, wheel in laterally, pack up or during cross running state by realization, and first connecting rod 9 and second connecting rod 11 arrive separately at the
One quarter butt slideway 9L and the second quarter butt slideway 11L other ends limit point.
In the present embodiment, under the first quarter butt slideway 9L and the second quarter butt slideway 11L restriction, first connecting rod 9 and
Two connecting rods 11 make angle between first connecting rod 9 and second connecting rod 11 under the drive of hydraulic cylinder 7, when the piston rod of hydraulic cylinder 7 stretches out
For 180 degree, i.e., the two in same straight line make wheel in it is longitudinally disposed when, the first quarter butt slideway 9L of position-arresting disk 10 and second is short
Bar slideway 11L reaches a limit point, and limitation first connecting rod 9 and second connecting rod 11 can not continue folded against；When hydraulic cylinder 7 is lived
Stopper rod is retracted when making first connecting rod 9 and second connecting rod 11 inwardly be folded to make the wheel be rotated by 90 ° in the position laterally set, limit
The the first quarter butt slideway 9L and the second quarter butt slideway 11L of position disk 10 reach another limit point, limit first connecting rod 9 and second
Connecting rod 11 can not continue folded against.
The position-arresting disk 10 is fixed on the company of first connecting rod 9 and second connecting rod 11 by the installation bolt in centre bore 10P
Place is met, and the position-arresting disk 10 will not rotate with the first quarter butt 9A and the second quarter butt 11A, position-arresting disk 10 only can be in hydraulic cylinder 7
Piston rod drive under move along a straight line.
In above-mentioned position-arresting disk 10, by limiting the first quarter butt slideway 9L and the second quarter butt slideway 11L radian, and then limit
Fixed first quarter butt 9A and the second quarter butt 11A rotation angle range, the final corner model for limiting first connecting rod 9 and second connecting rod 11
Enclose, the structure of above-mentioned position-arresting disk is simple, occupies little space.
As shown in Figure 5 a, when automobile normal running, select suspension fork mechanism described in the utility model carrying out stretching, extension operation,
Open suspension fork mechanism；The protruding motion of piston rod of hydraulic cylinder 7, and action is delivered to the He of first connecting rod 9 by bulb
Second connecting rod 11, first connecting rod 9 and second connecting rod 11 is set to rotate against stretching, extension, when first connecting rod 9 and second connecting rod 11 move to
When on straight line, now the first quarter butt slideway 9L and the second quarter butt slideway 11L of position-arresting disk 10 connect to first connecting rod 9 and second
Bar 11 carries out spacing, limits first connecting rod 9 and second connecting rod 11 and continues counter motion and fold, makes first connecting rod 9 and second connecting rod
11 keep linear state, and then ensure the accuracy of first connecting rod 9 and the space motion location of second connecting rod 11.Meanwhile second connects
Bar 11 drives lower control arm 6 to deploy laterally, lower control arm 6, second connecting rod 11 and first connecting rod 9 is flexed outward motion extremely
Extreme position, three are simultaneously in rest equilibrium state.Now, by hydraulic cylinder locking system locking hydraulic cylinder 7, whole suspension machine is made
Structure is steadily fixed, and now the lower control arm 6 in suspension, hydraulic cylinder 7, first connecting rod 9, second connecting rod 11 and position-arresting disk 10 form
Suspension fork mechanism normal work can be carried out as traditional suspension.
As shown in Fig. 5 b and Fig. 6, when vehicle stationary or when running at a low speed, select to enter suspension fork mechanism described in the utility model
Row shrinkage operation, folds suspension fork mechanism；The inside contractile motion of piston rod of hydraulic cylinder 7, and action is another by piston rod
End end is delivered to first connecting rod 9 and second connecting rod 11, pulls first connecting rod 9 and second connecting rod 11 to contract, first connecting rod
9 hydraulic cylinder 7 is overall to be shunk to the side of vehicle body 8 to being driven during contract, and second connecting rod 11 is to driving lower control arm 6 during contract
To contract, until the piston rod of hydraulic cylinder 7 is inwardly retracted to up to stroke end, during this, installation corresponding with lower control arm 6
Tire under the driving of hydraulic cylinder 7 rotary angle of 90 DEG, now, the first quarter butt slideway 9L and the second quarter butt slideway of position-arresting disk 10
11L carries out spacing to first connecting rod 9 and second connecting rod 11, limits first connecting rod 9 and second connecting rod 11 and continues opposed, inwardly directed folding,
And then ensure the accuracy of first connecting rod 9 and the space motion location of second connecting rod 11.Now, hydraulic cylinder locking system locking is passed through
Hydraulic cylinder 7, now tire switch to lateral attitude from lengthwise position rotary angle of 90 DEG, as shown in fig. 6, by controlling wheel hub motor 12 simultaneously
Coordinate steering, it is possible to achieve pivot stud or the cross running operation of automobile.
Above-mentioned position-arresting disk 10 ensures the accurate of first connecting rod 9 and the relative motion position of second connecting rod 11 as position-limit mechanism
Property, and then ensure that wheel is accurate in vertical or horizontal position.In addition, limiting plate also can be selected as position-limit mechanism, together
Sample can realize the accuracy of first connecting rod 9 and the relative motion position of second connecting rod 11.
As shown in fig. 7, the limiting plate 11B is arranged on second connecting rod 11, the limiting plate 11B is arranged on to be connected with first
Bar 9 is connected on the second connecting rod 11 of one end, and when the tailpiece of the piston rod of hydraulic cylinder 7 is protruding, promotion first connecting rod 9 and second connects
When bar 11 is moved on straight line, as shown in figure 8, Fig. 8 is Fig. 7 planar rear view, limiting plate 11B has blocked first connecting rod 9
End, it is spacing if first connecting rod 9 is rotated further and the inner side plane of second connecting rod 11 can be close to limiting plate 11B interferes
Plate 11B carries out spacing to first connecting rod 9, and limitation first connecting rod 9 can not be rotated further, now first connecting rod 9 and second connecting rod 11
Drive under, wheel will be in longitudinally disposed；Similarly, as shown in figure 9, when the piston of hydraulic cylinder 7 is to contract, first connecting rod is pulled
9 with second connecting rod 11 fold rotate when, if first connecting rod 9 continue fold rotation can be interfered with limiting plate 11B upper edge, limit
Position plate 11B carries out spacing to first connecting rod 9, first connecting rod 9 is not rotated further, now first connecting rod 9 and second connecting rod 11
Drive under, wheel will be rotated by 90 ° angle switch in laterally set.Above by adding limiting plate 11B institutes on second connecting rod 11
The position-limit mechanism of composition is simple in construction, occupies little space, but material wear ability and impact resistance requirement to limiting plate 11B
It is higher.
As it was previously stated, foldable suspension fork mechanism described in the utility model is applied to traditional transverse tie rod type steering mechanism,
As shown in Fig. 1, in transverse tie rod type steering mechanism, turning to driving force will be delivered to along track rod 5, and by ball pivot
Knuckle 3 completes steering operation.
As shown in Figure 10, foldable suspension fork mechanism described in the utility model applies also for another new steering mechanism
In, Ji Mian drag links steering mechanism, the drag link steering mechanism that exempts from is by reducing gear 15, steering power mechanism 16, shock absorber
Sleeve 17, bush connecting rod 18, upper steering arm 19, lower steering arm 20, rack rod 21, rzeppa joint 22 and bearing 23
Composition.Concrete structure and embodiment are as follows：
As shown in Figure 10, steering power mechanism 16 is connected with reducing gear 15, and the rzeppa joint 22, which is arranged on, to be subtracted
On the central shaft of the fast lower section of mechanism 15, bearing 23 is coaxially mounted to the lower section of rzeppa joint 22, decelerator sleeve 17 and axle
The inner ring for holding 23 is fixed, and makes central axis of the decelerator sleeve 17 along reducing gear 15；The one end of bush connecting rod 18 is fixedly connected
In the side wall of damper sleeve 17, the upper end of the other end and upper steering arm 19 is hinged, the lower end of steering arm 19 and lower steering arm
20 upper end is hinged, and the lower end and one end of rack rod 21 of lower steering arm 20 are hinged, the other end of rack rod 21 and steering
The outside of section 3 is fixedly connected, and the upper steering arm 19 and lower steering arm 20 are along the axially arranged of shock absorber 4.
As shown in figure 11, the steering power mechanism 16 is by motor 16B and shaft coupling 16A is coaxially connected forms；It is described to subtract
Fast mechanism 15 is made up of gear 15A, leading screw 15B and nut 15C, wherein, the leading screw 15B and shaft coupling 16A are coaxially connected, spiral shell
Female 15C is arranged on leading screw 15B, and nut 15C outer surface is machined with cylindrical rack structure, the center of the gear 15A
Axle is vertically arranged with leading screw 15B, and gear 15A is meshed to form rack-and-pinion with nut 15C outer surface.
As shown in figure 11, turn signal is delivered to automobile electronic control unit ECU by steering wheel, and the steering power mechanism 16 connects
Receive the turn signal that automobile electronic control unit ECU is sent and export power, turn signal is sent to motor 16B, motor output by ECU
Power is delivered to leading screw 15B by axle by shaft coupling 16A, and nut 15C is engaged to form rack pinion pair with gear 15A, entered
And power is transferred to gear 15A.
As shown in Figure 10, the gear 15A central shafts pass through rzeppa joint 22 and bearing 23, and drive shock absorber set
Cylinder 17 rotates, power by the bush connecting rod 18 that is sequentially connected with damper sleeve 17, upper steering arm 19, lower steering arm 20 and
Rack rod 21 is sequentially delivered to knuckle 3, and then completes steering operation with motor car wheel.
At the same time, hinged upper steering arm 19 and lower steering arm 20 are adapted with shock absorber 4, in spring-compressed
Afterwards, steering mechanism two remains able to complete steering operation, is unaffected, while rzeppa joint 22 ensure that spring pressure
During contracting, lower section shock absorber 4 still has the free degree rotated around shock absorber axis.
Compared with traditional transverse tie rod type steering mechanism, exempt from the limitation that drag link steering mechanism eliminates track rod,
The chassis arrangement of automobile can have bigger performance space, suitable for the higher electric car of integrated level, exempt from drag link steering mechanism
Cross running is easily achieved, still, compared to traditional transverse tie rod type steering mechanism, exempts from the unsprung mass of drag link steering mechanism
Increase, dynamic response capability are declined slightly and exempt from algorithm essence of the drag link steering mechanism to the electronic control unit (ECU) of automobile
Degree and reliability requirement are higher.
In summary, the utility model realizes the big steering angle of wheel by changing traditional suspension lower suspension arm structure, together
When kingpin offset size it is suitable, steering is not had much affect, the better wheel of dynamic characteristic can be obtained and determined
Position parameter.Solve in Automobile Design, big steering angle and the contradiction of preferable wheel dynamic parameter.
Claims (5)
- A kind of 1. foldable suspension fork mechanism applied to distributed-driving electric automobile, installed in vehicle body (8) and corresponding wheel Between knuckle, it is characterised in that：The foldable suspension fork mechanism is engaged the vertical or horizontal setting realized to wheel with steering mechanism；The foldable suspension fork mechanism is connected by lower control arm (6), hydraulic cylinder (7), first connecting rod (9), position-arresting disk (10) and second Bar (11) forms；One end of the lower control arm (6) is connected with vehicle body (8) ball pivot, knuckle (3) ball pivot connection of the other end and wheel；The tailpiece of the piston rod of the hydraulic cylinder (7) is articulated between first connecting rod (9) and second connecting rod (11), is formed and turned between three Dynamic pair；The other end of the first connecting rod (9) is connected with vehicle body (8) ball pivot, the other end and the lower control of the second connecting rod (11) The other end of arm (6) processed is hinged, and the cylinder body end of the hydraulic cylinder (7) is connected with vehicle body (8) ball pivot；The position-arresting disk (10) is arranged on first connecting rod (9) and second connecting rod (11) hinged place, to limit first connecting rod (9) and Relative rotation scope between two connecting rods (11)；Two cambered ways are provided with the end face of the position-arresting disk (10), two quarter butts are provided with position-arresting disk (10), it is described short One end of bar is articulated with the centre bore of position-arresting disk (10), the other ends of two quarter butts by spiral shell peg or pin respectively with first connecting rod (9) it is connected with second connecting rod (11), the spiral shell peg or pin is moved in corresponding cambered way respectively, by first connecting rod (9) between second connecting rod (11) relative rotation restriction, realize the restriction to the vertical or horizontal position of wheel.
- A kind of 2. foldable suspension fork mechanism applied to distributed-driving electric automobile as claimed in claim 1, it is characterised in that：The the first quarter butt slideway (9L) and the second quarter butt slideway (11L) of two arcs are provided with the end face of the position-arresting disk (10), Two fan grooves, two fan grooves and the first quarter butt slideway (9L) and the second quarter butt are radially provided with the side of position-arresting disk (10) Slideway (11L) position is corresponding；It is radially mounted in the fan groove of the position-arresting disk (10) side to have the first quarter butt (9A), One end of one quarter butt (9A) is articulated with centre bore (10P) place of position-arresting disk, and first connecting rod (9) passes through bolt with the first quarter butt (9A) Or alignment pin is connected to the first quarter butt hole (9P), and the bolt or alignment pin are arranged in the first quarter butt slideway (9L), the One quarter butt (9A) rotates along the first quarter butt slideway (9L) with first connecting rod (9)；In the fan groove of position-arresting disk (10) opposite side Radially mounted to have the second quarter butt (11A), one end of the second quarter butt (11A) is articulated with centre bore (10P) place of position-arresting disk, and Two connecting rods (11) are connected to the second quarter butt hole (11P), the second quarter butt with the second quarter butt (11A) by bolt or alignment pin (11A) rotates along the second quarter butt slideway (11L) with second connecting rod (11)；The position-arresting disk (10) is by centre bore (10P) interior installation bolt, being fixed on first connecting rod (9) and second connecting rod (11) Junction.
- A kind of 3. foldable suspension fork mechanism applied to distributed-driving electric automobile, installed in vehicle body (8) and corresponding wheel Between knuckle, it is characterised in that：It is made up of lower control arm (6), hydraulic cylinder (7), first connecting rod (9), limiting plate (11B) and second connecting rod (11)；One end of the lower control arm (6) is connected with vehicle body (8) ball pivot, knuckle (3) ball pivot connection of the other end and wheel；The tailpiece of the piston rod of the hydraulic cylinder (7) is articulated between first connecting rod (9) and second connecting rod (11), is formed and turned between three Dynamic pair；The other end of the first connecting rod (9) is connected with vehicle body (8) ball pivot, the other end and the lower control of the second connecting rod (11) The other end of arm (6) processed is hinged, and the cylinder body end of the hydraulic cylinder (7) is connected with vehicle body (8) ball pivot；The limiting plate (11B), which is arranged on, to be connected with first connecting rod (9) on the second connecting rod (11) of one end, by connecting with first Bar (9) is interfered to limit the relative rotation scope between first connecting rod (9) and second connecting rod (11), by first connecting rod (9) between second connecting rod (11) relative rotation restriction, realize the restriction to the vertical or horizontal position of wheel.
- 4. a kind of foldable suspension fork mechanism applied to distributed-driving electric automobile as any one of claim 1-3, It is characterized in that：The steering mechanism being engaged with foldable suspension fork mechanism to exempt from drag link steering mechanism, it is described exempt from drag link steering mechanism by Reducing gear (15), steering power mechanism (16), damper sleeve (17), bush connecting rod (18), upper steering arm (19), lower steering Arm (20), rack rod (21), rzeppa joint (22) and bearing (23) composition；The steering power mechanism (16) is by motor (16B) and shaft coupling (16A) is coaxially connected forms；The reducing gear (15) It is made up of gear (15A), leading screw (15B) and nut (15C), wherein, the leading screw (15B) and shaft coupling (16A) are coaxially connected, Nut (15C) is arranged on leading screw (15B), and the outer surface of nut (15C) is machined with cylinder rack, the gear (15A) Central shaft is vertically arranged with leading screw (15B), and gear (15A) is meshed to form rack-and-pinion with the outer surface of nut (15C)；The rzeppa joint (22), bearing (23) and damper sleeve (17) are sequentially arranged at reducing gear from top to bottom (15) on the central shaft below, described bush connecting rod (18) one end is fixedly connected in the side wall of damper sleeve (17), described Bush connecting rod (18) other end, upper steering arm (19), one end of lower steering arm (20) and rack rod (21) are hinged successively, support The other end of connecting rod (21) is fixedly connected with knuckle (3), and the upper steering arm (19) and lower steering arm (20) are along shock absorber (4) axially arranged.
- 5. a kind of foldable suspension fork mechanism applied to distributed-driving electric automobile as any one of claim 1-3, It is characterized in that：Hydraulic cylinder locking system is installed on the hydraulic cylinder (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720687670.4U CN207190695U (en) | 2017-06-14 | 2017-06-14 | A kind of foldable suspension fork mechanism applied to distributed-driving electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720687670.4U CN207190695U (en) | 2017-06-14 | 2017-06-14 | A kind of foldable suspension fork mechanism applied to distributed-driving electric automobile |
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| Publication Number | Publication Date |
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| CN207190695U true CN207190695U (en) | 2018-04-06 |
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|---|---|---|---|
| CN201720687670.4U Withdrawn - After Issue CN207190695U (en) | 2017-06-14 | 2017-06-14 | A kind of foldable suspension fork mechanism applied to distributed-driving electric automobile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107139669A (en) * | 2017-06-14 | 2017-09-08 | 吉林大学 | A kind of foldable suspension fork mechanism applied to distributed-driving electric automobile |
-
2017
- 2017-06-14 CN CN201720687670.4U patent/CN207190695U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107139669A (en) * | 2017-06-14 | 2017-09-08 | 吉林大学 | A kind of foldable suspension fork mechanism applied to distributed-driving electric automobile |
| CN107139669B (en) * | 2017-06-14 | 2018-08-03 | 吉林大学 | A kind of foldable suspension fork mechanism applied to distributed-driving electric automobile |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180406 Effective date of abandoning: 20180803 |