CN208232730U - A kind of scalable guide rod - Google Patents
A kind of scalable guide rod Download PDFInfo
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- CN208232730U CN208232730U CN201820395480.XU CN201820395480U CN208232730U CN 208232730 U CN208232730 U CN 208232730U CN 201820395480 U CN201820395480 U CN 201820395480U CN 208232730 U CN208232730 U CN 208232730U
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- Prior art keywords
- connecting rod
- rod
- scalable guide
- guide rod
- bulbs
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- 239000011247 coating layer Substances 0.000 claims description 2
- 238000005299 abrasion Methods 0.000 abstract description 7
- 239000000725 suspension Substances 0.000 description 41
- 230000007246 mechanism Effects 0.000 description 8
- 230000008859 change Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 208000005408 Metatarsus Varus Diseases 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
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- 230000001568 sexual effect Effects 0.000 description 1
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- 238000011105 stabilization Methods 0.000 description 1
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Abstract
The utility model discloses a kind of scalable guide rods, including first connecting rod, second connecting rod and prismatic pair, the first end of the first connecting rod is connect with the first end of the second connecting rod by the prismatic pair, and the second end of the second end of the first connecting rod and the second connecting rod is all connected with two rod end bulbs.Pass through four rod end bulbs of the second end setting of the second end and second connecting rod in first connecting rod, so that scalable guide rod described in the utility model is when in face of the load of long-time, complexity, still it is able to maintain good working order, the friction and abrasion between guide rod and engaging lug or gasket are avoided, the service life of guide rod is improved.
Description
Technical field
The utility model relates to automobile suspension systems, and in particular, to a kind of scalable guide rod.
Background technique
Suspension is to guarantee there is elasticity between wheel or vehicle bridge and automobile bearing system (vehicle frame or monocoque body)
Load is contacted and can be transmitted, impact, decaying vibration are mitigated and adjusts the automobile related dress such as vehicle body position in the process of moving
The general name set.General suspension is mainly made of elastic element, damping device and guiding mechanism three parts.In some cases, certain
One components and plays two kinds or three kinds, for example leaf spring is simultaneous plays elastic element and guiding mechanism.Wherein lead
Power and torque reliable delivery all between wheel and vehicle body or vehicle frame are to ensure that the function of mechanism, and determine wheel relative to
The placement property of vehicle body or vehicle frame.The variation feelings of motion profile and wheel alignment parameter when guiding mechanism determines wheel hop
The position of roll center and trim center before and after condition and automobile, largely affect vehicle control stability and
Anti- trim ability.
The characteristics of according to guiding mechanism, automotive suspension can be mainly divided into rigid axle suspension and independent suspension two major classes.It is non-
Independent suspension is typically characterized by between left and right wheels by a buckstay or the connection of non-disconnected vehicle bridge, when unilateral wheel
When bounce, other side wheel is directly influenced.The stationarity of Non-separation suspension system and comfort are poor, but have again make simultaneously
The feature that valence is low, bearing capacity is big, the rear suspension of part pony car and lorry, motor bus are equipped with this suspension system at present.Solely
The wheel for being structurally characterized in that two sides of vertical suspension couples individually through resilient suspension with vehicle body or vehicle frame, and vehicle bridge is made into disconnection
Formula.Therefore, independent suspension has the advantage that 1. two sides wheel can move alone and is independent of each other, and improves handling；2. reducing
Nonspring carried mass is conducive to the ride comfort of automobile；3. using broken bridge of car, engine location can be reduced, reduces vehicle weight
The heart；4. wheel movement space is larger, suspension rate can be reduced, improves ride comfort.The above advantage makes independent suspension by widely
It applies on automobile, the deflecting roller of especially car has all generallyd use independent suspension, in order to improve driving safety, increasingly
The rear overhang of more sedan limousines also uses independent suspension.
In terms of the difference of suspension property, guiding mechanism accounts for very big factor, and the characteristics of motion of guiding mechanism directly affects vehicle
Take turns the variation of positional parameter.Although the structure of suspension is different, final purpose is all by various designs so that front-wheel
The variation of positional parameter during the motion is reasonable and small as far as possible.Currently, most widely used independent suspension is main on automobile
Have: McPherson strut, double cross arm independent suspension and multi-connecting-rod separated suspension.Generally speaking, current most economical applicable, sexual valence
It is MacPherson type than highest independent front suspension；It is multi link and double wish-bone arm type that high-performance adjustment and matched suspension, which can be done,；Knot
It is multi link formula that structure is most complicated, realizes function at most.
Although conventional independent suspension can functionally meet suspension design requirement at present, work as wheel hop
When, wheel alignment parameter can change.In practical applications, the variation of any positional parameter of wheel all can be to automobile operation stabilization
Property or other aspect performances have an adverse effect, such as wheelspan variation will lead to automobile straight-line travelling ability decline, simultaneously
Also cause rolling resistance increase and the influence to steering system；The variation of camber angle will lead to abnormal tyre abrasion.Mai Fu
It is inferior that damper lower fulcrum changes therewith with sideway arm swing, the oblique angle of main pin axis when being suspended in wheel and moving up and down, because
This its wheel alignment parameter has a greater change in Suspension movement.Double fork arm type equal suspensions, can by rationally designing upper lower cross arm
So that wheel and stub Parameters variation are little；It, cannot fundamentally solution portion but due to being limited by guiding mechanism motion principle
Positional parameter is divided to change excessive problem.Resonable refer to of multi-link lever suspension fork motion profile is essentially all complicated space curve,
So that situation of change of wheel alignment parameter during wheel moves up and down is more outstanding than traditional McPherson suspension and double transverse arms
Frame etc. is more severe；And suspension adjustment and matched difficulty are big, and movement and power performance are very sensitive to structural parameters, if
It is improper to match, and the variation range of wheel alignment parameter can be very big.
The rod end of currently used suspension guide rod is turning joint, although turning joint can preferably be born along hinge
Radial load, but when bearing along the load of hinge axial direction, performance is bad, be easy to cause guide rod and engaging lug or
Friction and abrasion between person's gasket.After longevity of service, be easy to cause between suspension guide rod and engaging lug generate it is empty
Gap works undesirable, influences suspension property and vehicle maneuvering performance.
Utility model content
In view of problem above, the purpose of the utility model is to provide a kind of scalable guide rods, to solve existing suspension
When guide rod is born along rod end turning joint axial load, easily causes and rubs and wear between guide rod and engaging lug or gasket,
The problem of to influence suspension property and vehicle maneuvering performance.
To achieve the goals above, the one aspect of the utility model is to provide a kind of scalable guide rod, including first
The first end of connecting rod, second connecting rod and prismatic pair, the first end of the first connecting rod and the second connecting rod passes through the movement
The second end of pair connection, the second end of the first connecting rod and the second connecting rod is all connected with two rod end bulbs.
Preferably, there is inner hole, the second end of the first connecting rod and described second connect in the rod end of the rod end bulb
The second end of bar is provided with link block, second end or the second connecting rod of the two sides of each link block from the first connecting rod
The both ends of end face of second end stretch out, and a through-hole is respectively arranged on the both ends of stretching, bolt is respectively from described the
The direction of one end passes through the through-hole towards the second end and is inserted into the inner hole, connects with the screw-internal thread fit in the inner hole
It connects.
Preferably, the rod end for two rod end bulbs connecting with the same link block is parallel to each other, and the length phase of rod end
Deng.
Preferably, the end face of the second end of the first connecting rod and/or the second end of the second connecting rod, which is provided with, concaves towards
First groove in the direction of the first end, on the link block surface opposite with the first connecting rod or the second connecting rod
It is provided with protrusion, the protrusion is connected with first groove interference fit,
Alternatively, the link block surface opposite with the first connecting rod or the second connecting rod is provided with the second groove,
The first connecting rod or the second connecting rod and second groove interference fit connect.
Preferably, the first connecting rod and/or the second connecting rod are integrally formed with corresponding link block.
Preferably, the flexural pivot axis for two rod end bulbs connecting with the same end is parallel to each other, and with the first connecting rod
Or the upper surface of the second connecting rod is vertical.
Preferably, the flexural pivot axis for two rod end bulbs being connect with the same end on the same line, and with described first
The axis of connecting rod or the second connecting rod is in the same plane.
Preferably, the centre of sphere line for two rod end bulbs being connect with the second end of the first connecting rod and with described second
The centre of sphere line of two rod end bulbs of the second end connection of connecting rod is parallel.
Preferably, the first end of the first connecting rod is provided with free-sliding spline axis, the first end setting of the second connecting rod
There is free-sliding spline axle sleeve, the free-sliding spline axis and the free-sliding spline axle sleeve are cooperatively connected.
Preferably, the inner surface of the outer surface of the free-sliding spline axis and the free-sliding spline axle sleeve is coated with macromolecule painting
Layer.
Compared with prior art, the utility model has the following advantages and beneficial effects:
The utility model is applied to independent suspension, by being arranged in the second end of first connecting rod and the second end of second connecting rod
Four rod end bulbs so that scalable guide rod described in the utility model in face of for a long time, complicated service load when, according to
It so is able to maintain good working order, avoids friction and abrasion between guide rod and engaging lug or gasket, improves guiding
The service life of bar.
By the scalable guide rod, so that wheel can only realize the outer of wheel along linear motion in bounce
Inclination angle, kingpin inclination and back rake angle, toeing-in, wheel posterior cord, left and right wheels away from and the positional parameters such as wheel base in vehicle
Wheel is held essentially constant during moving up and down, to improve the handling of vehicle, reduces the abrasion of tire.
Detailed description of the invention
Fig. 1 is scalable guide rod preferred embodiment structural schematic diagram described in the utility model；
Fig. 2 is another example structure schematic diagram of scalable guide rod described in the utility model.
Specific embodiment
Embodiment described in the utility model described below with reference to the accompanying drawings.Those skilled in the art can recognize
Know, it, can be with a variety of different modes or combinations thereof to institute without departing from the spirit and scope of the utility model
The embodiment of description is modified.Therefore, attached drawing and description are regarded as illustrative in nature, rather than for limiting claim
Protection scope.In addition, in the present specification, attached drawing is drawn not in scale, and identical appended drawing reference indicates identical portion
Point.
The present embodiment is described in detail below with reference to Fig. 1-Fig. 2.
Fig. 1 is scalable guide rod preferred embodiment structural schematic diagram described in the utility model, and Fig. 2 is the utility model institute
Another example structure schematic diagram of scalable guide rod is stated, as depicted in figs. 1 and 2, scalable guide rod described in the utility model
Including first connecting rod 2, second connecting rod 3 and prismatic pair, the first end of first connecting rod 2 and the first end of second connecting rod 3 pass through movement
Pair connection, the second end of first connecting rod 2 and the second end of second connecting rod 3 are all connected with two rod end bulbs 4.
Four rod end bulbs are connected by the end of two connecting rods in scalable guide rod, by the one of existing turning joint
Point stress, is converted into two points stress, allows the scalable guide rod in the utility model to undertake the load of hinge axial direction, makes
Guide rod still is able to keep preferable working condition, reliability and service life obtain in the working environment of complicated applied force
To raising.
Wherein, rod end bulb 4 is convenient for the connection in independent suspension between vehicle body and knuckle or steering column, and rod end ball
Head easily purchase, it is cheap, reduce the manufacturing cost of scalable guide rod.
As shown in Figure 1, there is inner hole, in the second end and second connecting rod 3 of first connecting rod 2 in the rod end of rod end bulb 4
Second end is provided with link block 5, and the two sides of each link block 5 are from the second end of first connecting rod 2 or the second end of second connecting rod 3
The both ends of end face stretch out, and be respectively arranged with a through-hole at the both ends of stretching, and the aperture of through-hole is greater than the outer of bolt 41
Diameter, position of the position of through-hole not with first connecting rod 2 or second connecting rod 3 interfere, and four bolts 41 are respectively from first connecting rod 2
Or the direction of the first end of second connecting rod 3 passes through the through-hole of link block 5 towards the direction of second end, is inserted into corresponding rod end bulb
In inner hole in 4 rod end, and bolt 41 is connect with the screw-internal thread fit of rod end inner hole.
Wherein, rod end bulb 4 uses standard component, and even single part is impaired, can also replace rapidly, reduces to suspension
The influence of overall applicability.And using the rod end bulb of standard, the person that is also convenient for entire vehicle design replaces different bars for different situations
Hold bulb.
When selecting and installing rod end bulb, it is preferable that the bar for two rod end bulbs 4 being connect with the same link block 5
End is parallel to each other, and the equal length of two rod ends.
The link block 5 of the second end of first connecting rod 2 or second connecting rod 3 and its end can there are many connection type, first
Connecting rod 2 or second connecting rod 3 and link block 5 can be independent two components, be also possible to an integrally formed entirety.
When first connecting rod 2 or second connecting rod 3 and link block 5 are independent two components, the second end of first connecting rod 2
And/or the end face of the second end of second connecting rod 3 is provided with the first groove for concaving towards the direction of the corresponding first end of connecting rod, connection
Protrusion is provided on the surface opposite with first connecting rod 2 or second connecting rod 3 of block 5, the protrusion is matched with the first groove interference
Close connection.
Alternatively, the surface opposite with first connecting rod 2 or second connecting rod 3 of link block 5 is provided with the second groove, first connecting rod 2
Or second connecting rod 3 and the second groove interference fit connect.
For the ease of installation of the scalable guide rod in suspension entirety, as illustrated in fig. 1, it is preferred that with same
The flexural pivot axis of two rod end bulbs 4 of connection is held to be parallel to each other, and vertical with the upper surface of first connecting rod 2 or second connecting rod 3,
That is, when installing rod end bulb, guarantee that the flexural pivot axis of rod end bulb is parallel to each other, and with first connecting rod 2 or second connecting rod 3
Upper surface is vertical and then tightens bolt 41.
Alternatively, the flexural pivot axis for two rod end bulbs 4 connecting with the same end is not parallel to each other, but in same straight line
On, and in the same plane with the axis of first connecting rod 2 or second connecting rod 3.For example, as shown in Figure 1, connect with the same end two
The flexural pivot axis of a rod end bulb 4 is in the state that is parallel to each other, can also by be oppositely arranged two rod end bulbs 4 simultaneously to
Relative direction is rotated by 90 °, as shown in Fig. 2, the flexural pivot axis of two rod end bulbs 4 is made to be in state on the same line,
Bolt 41 is tightened again, also can achieve the mounting condition of the scalable guide rod.
For the ease of under the action of the scalable guide rod, constraining the direction of motion of the wheel in hopping process, control
The motion profile of wheel processed, so that wheel can only be along linear motion in bounce, it is preferable that the second end with first connecting rod 2
The centre of sphere line of two rod end bulbs of connection and the centre of sphere line for two rod end bulbs being connect with the second end of second connecting rod 3
In parallel, so that the centre of sphere of four rod end bulbs of the scalable guide rod in the same plane.
In the utility model, the prismatic pair of the scalable guide rod can be various forms of linear guiding structures, can
With free elongation.For example, prismatic pair can be free-sliding spline pair, it is also possible to rolling spline pair, and it is without being limited thereto.Preferably,
The first end of first connecting rod 2 is provided with free-sliding spline axis, and the first end of second connecting rod 3 is provided with free-sliding spline axle sleeve, sliding flower
Key axis and free-sliding spline axle sleeve are cooperatively connected, to realize the relative motion between first connecting rod and second connecting rod, realize guiding
Bar is freely extended along axial.
For the ease of the lubrication between free-sliding spline axis and free-sliding spline axle sleeve, abrasion between the two is reduced, it is preferable that
The outer surface of free-sliding spline axis and the inner surface of free-sliding spline axle sleeve are coated with polymeric coating layer.
The installation process of scalable guide rod described in the utility model is as follows:
When installation, the cunning of the first end setting of free-sliding spline axis and second connecting rod 3 that the first end of first connecting rod 2 is arranged
Dynamic hub splines is cooperatively connected, to connect first connecting rod 2 and second connecting rod 3.According to the design requirement of vehicle, selection criteria
Rod end bulb is as flexural pivot, two that the link block 5 that two bolts 41 are each passed through the second end of first connecting rod 2 is arranged
It in through-hole, is inserted into the rod end of corresponding rod end bulb, the flexural pivot axis for adjusting two rod end bulbs is parallel to each other, and with
The upper surface of one connecting rod 2 is mutually perpendicular to, and tightens bolt 41, is connect with the screw-internal thread fit in rod end inner hole, and first connecting rod is completed
The installation of two rod end bulbs of second end.Similarly, then in the same way two rod ends of second connecting rod second end are installed
Bulb, and when adjusting the position of two rod end bulbs of second connecting rod second end, not only to guarantee the ball of two rod end bulbs
Hinged shaft line is parallel to each other, and vertical with the upper surface of second connecting rod, and to guarantee two rod ends in second connecting rod second end
The centre of sphere line of bulb and the centre of sphere line of two rod end bulbs of installed first connecting rod second end are parallel to each other, to protect
Demonstrate,prove the centre of sphere of four rod end bulbs in the same plane.
The utility model is applied to independent suspension, and camber angle, the stub of wheel are realized by the scalable guide rod
Leaning angle and back rake angle, toeing-in, wheel posterior cord, left and right wheels away from and the positional parameters such as wheel base moved up and down in wheel
It is held essentially constant in the process, to improve the handling of vehicle, reduces the abrasion of tire.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, for this field
Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model,
Any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of scalable guide rod, which is characterized in that including first connecting rod, second connecting rod and prismatic pair, the first connecting rod
First end connect with the first end of the second connecting rod by the prismatic pair, the second end of the first connecting rod and described the
The second end of two connecting rods is all connected with two rod end bulbs.
2. scalable guide rod according to claim 1, which is characterized in that have in the rod end of the rod end bulb interior
The second end of hole, the second end of the first connecting rod and the second connecting rod is provided with link block, the two sides of each link block
It is stretched out from the both ends of the end face of the second end of the second end or second connecting rod of the first connecting rod, and on the both ends of stretching
It is respectively arranged with a through-hole, bolt passes through the through-hole towards the second end from the direction of the first end respectively and is inserted into institute
It states in inner hole, is connect with the screw-internal thread fit in the inner hole.
3. scalable guide rod according to claim 2, which is characterized in that two rod ends being connect with the same link block
The rod end of bulb is parallel to each other, and the equal length of rod end.
4. scalable guide rod according to claim 2, which is characterized in that the second end of the first connecting rod and/or institute
The end face for stating the second end of second connecting rod is provided with first groove in the direction for concaving towards the first end, the link block with it is described
Protrusion is provided on first connecting rod or the opposite surface of the second connecting rod, the protrusion connects with first groove interference fit
It connects,
Alternatively, the link block surface opposite with the first connecting rod or the second connecting rod is provided with the second groove, it is described
First connecting rod or the second connecting rod and second groove interference fit connect.
5. scalable guide rod according to claim 2, which is characterized in that the first connecting rod and/or second company
Bar is integrally formed with corresponding link block.
6. scalable guide rod according to claim 1, which is characterized in that two rod end bulbs being connect with the same end
Flexural pivot axis is parallel to each other, and vertical with the upper surface of the first connecting rod or the second connecting rod.
7. scalable guide rod according to claim 1, which is characterized in that two rod end bulbs being connect with the same end
Flexural pivot axis on the same line, and in the same plane with the axis of the first connecting rod or the second connecting rod.
8. scalable guide rod according to claim 1, which is characterized in that connect with the second end of the first connecting rod
The centre of sphere line of two rod end bulbs and the centre of sphere line for two rod end bulbs connecting with the second end of the second connecting rod are flat
Row.
9. scalable guide rod according to claim 1, which is characterized in that the first end of the first connecting rod is provided with cunning
Dynamic splined shaft, the first end of the second connecting rod are provided with free-sliding spline axle sleeve, the free-sliding spline axis and the free-sliding spline
Axle sleeve is cooperatively connected.
10. scalable guide rod according to claim 9, which is characterized in that the outer surface of the free-sliding spline axis and institute
The inner surface for stating free-sliding spline axle sleeve is coated with polymeric coating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820395480.XU CN208232730U (en) | 2018-03-22 | 2018-03-22 | A kind of scalable guide rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820395480.XU CN208232730U (en) | 2018-03-22 | 2018-03-22 | A kind of scalable guide rod |
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| Publication Number | Publication Date |
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| CN208232730U true CN208232730U (en) | 2018-12-14 |
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| CN201820395480.XU Expired - Fee Related CN208232730U (en) | 2018-03-22 | 2018-03-22 | A kind of scalable guide rod |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108583186A (en) * | 2018-03-22 | 2018-09-28 | 清华大学 | A kind of scalable guide rod |
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2018
- 2018-03-22 CN CN201820395480.XU patent/CN208232730U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108583186A (en) * | 2018-03-22 | 2018-09-28 | 清华大学 | A kind of scalable guide rod |
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