CN104890464B - Semi-independent suspension with inclined leaf springs - Google Patents
Semi-independent suspension with inclined leaf springs Download PDFInfo
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- CN104890464B CN104890464B CN201510330387.1A CN201510330387A CN104890464B CN 104890464 B CN104890464 B CN 104890464B CN 201510330387 A CN201510330387 A CN 201510330387A CN 104890464 B CN104890464 B CN 104890464B
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- leaf spring
- tilting leaf
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- 239000000725 suspension Substances 0.000 title claims abstract description 46
- 238000010586 diagram Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 6
- 230000001419 dependent effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 241001101025 Lilaeopsis Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 230000004899 motility Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The invention provides a semi-independent suspension with inclined leaf springs and belongs to the field of automobile engineering. The suspension comprises a frame, a half axle, and two semi-independent suspension devices on the two sides of the frame; the suspension device on each side comprises four inclined leaf springs; the first and fourth inclined leaf springs are symmetrical about the half axle, while the second and third inclined leaf springs are symmetrical about the half axle; the line of intersection of longitudinal symmetrical central planes determined by the first and fourth inclined leaf springs is parallel to or collinear to the line of intersection of longitudinal symmetrical central planes determined by the second and third inclined leaf springs. According to the semi-independent suspension, the wheels on the left and right two sides are directly connected without a hard shaft, and therefore, the semi-independent suspension is better than a traditional non-independent leaf spring suspension in manipulation stability and driving smoothness. Meanwhile, four leaf springs connected in parallel are capable of effectively bearing and alleviating impact to achieve better bearing capability and reliability; in addition, the distance between the bearing centers on the two sides and the steering range of the wheels are increased, and therefore, the whole vehicle is enabled to be better in low-speed flexibility.
Description
Technical field
The present invention relates to a kind of suspension being applied to vehicle, particularly to the semi-independent suspension of heavy-duty vehicle of employing leaf spring, belong to
In automotive engineering field.
Background technology
Suspension is to ensure that between wheel (or vehicle bridge) and vehicle frame (or vehicle body) have elastic contact and can transmit load, mitigation
Impact, decay vibration and regulation automobile vehicle body position in the process of moving etc. are about the general name of device.Suspension directly determines whole
The operational stability of car and ride performance.
General commercial car front-axle structure all uses dependent plate spring suspension system, owing to dependent plate spring suspension brackets both sides wheel passes through
Hard axle connects so that interferes during the wheel hop of both sides, causes car load control stability and ride performance poor；It is simultaneously
Ensureing bigger carrying centre-to-centre spacing, the lateral distance of vehicle frame and wheel limits the hard-over of wheel so that the low speed of automobile
Motility is poor.
Semi-independent or independent suspension can be prevented effectively from influencing each other between the wheel of both sides.Improve vehicle operational stability and
Ride performance.Chinese patent literature (publication number CN104175824A and CN103963590A) discloses a kind of semi-independent steel
Plate suspension, this suspension uses the arrangement of tilting leaf spring, has and improves wheel alignment parameter and increase the feature of carrying centre-to-centre spacing.
But the suspension leaf spring that above-mentioned patented technology relates to is multi-disc is combined between leaf spring, and leaf spring and knuckle permission relative motion,
It is easily caused leaf spring and knuckle serious wear during wheel hop, under extreme loads, possibly even occurs what wheel laterally came off
Accident.
Summary of the invention
It is an object of the invention to cause both sides wheel hop to influence each other for conventionally employed dependent plate spring suspension brackets and wheel maximum turns
Angle is limited, and semi-independent plate spring suspension brackets reliability involved by prior art and the problem of bearing capacity difference, it is provided that a kind of use
The semi-independent suspension frame structure of tilting leaf spring, it is ensured that the bearing capacity of vehicle and reliability, increases carrying centre-to-centre spacing, reduces wheel fixed
Position Parameters variation amount, reduces the inordinate wear of tire, and the further anti-roll capability improving car load, beneficially car load behaviour simultaneously
Make stability.
It is an object of the invention to be achieved through the following technical solutions:
A kind of semi-independent suspension using tilting leaf spring, including two semi-independent suspension dresses of vehicle frame, two semiaxis and vehicle frame both sides
Putting, the semi-independent draft hitch of every side includes leaf spring, vehicle bridge connecting elements, wheel and vehicle frame connecting elements；Vehicle frame connecting elements
Being fixed on vehicle frame, vehicle bridge connecting elements and semiaxis are affixed；Semiaxis is affixed with vehicle bridge connecting elements near wheel one end, the other end
Hinged by the first bearing pin and vehicle frame；
It is characterized in that: described leaf spring includes four tilting leaf springs, i.e. the tilting leaf spring of first, second tilting leaf spring, the 3rd
The tilting leaf spring of sheet and the 4th tilting leaf spring, every tilting leaf spring one end is connected with vehicle frame connecting elements, and the other end is connected with vehicle bridge
Component connects；The tilting leaf spring of described first and the 4th tilting leaf spring are about half axial symmetry, second tilting leaf spring and the 3rd
Tilting leaf spring about half axial symmetry, the intersection of longitudinally asymmetric median plane determined by the tilting leaf spring of first, the 4th tilting leaf spring
With second tilting leaf spring, the 3rd tilting leaf spring determined by the intersection of longitudinally asymmetric median plane is parallel to each other or conllinear.
The technical characteristic of the present invention also resides in, longitudinally asymmetric determined by the tilting leaf spring of described first and the 4th tilting leaf spring
The angular range of median plane is 60 °～120 °, longitudinally asymmetric median plane determined by second tilting leaf spring and the 3rd tilting leaf spring
Angular range be 60 °～120 °.
Preferably, determined by the tilting leaf spring of first and the 4th tilting leaf spring, the angle of longitudinally asymmetric median plane is 90 °, the
Determined by two tilting leaf springs and the 3rd tilting leaf spring, the angle of longitudinally asymmetric median plane is 90 °.
The present invention another be technically characterized in that semiaxis passes through the first bearing pin and is connected with vehicle frame, and on the first bearing pin, rubber is installed
Glue lining.
The another of the present invention is characterized in that: semiaxis is hinged with breakaway-element semiaxis by the second bearing pin near wheel one end, breakaway-element
Semiaxis is fixing with vehicle bridge connecting elements to be connected.
In technique scheme, between described every tilting leaf spring and vehicle frame connecting elements, it is provided with the first rubber mat plate；Every tilting
The second rubber mat plate it is provided with between leaf spring and vehicle bridge connecting elements；Or use every tilting leaf spring and vehicle bridge connecting elements to pass through spiral shell
Tether and connect, bolt is provided with rubber bushing.
The present invention compared with prior art, has the following advantages and salience effect: relative to SA, adopt in the present invention
Semi-independent tilting plate spring suspension brackets, effectively prevent the impact on opposite side wheel of the bob of single wheel, improve car
Ride performance；The tilting leaf spring simultaneously used designs with tradition longitudinal multi-disc leaf spring relatively, can effectively reduce vehicle and exist
The variable quantity of wheel alignment parameter in driving process, tilting leaf spring essence belongs to parallel-connection structure, it is ensured that the bearing capacity of vehicle and
Reliability, reduces the inordinate wear of tire, and its carrying centre-to-centre spacing is relatively big simultaneously, improves car load anti-roll capability, the most whole
Car control stability.Semi-independent plate spring suspension brackets involved by relatively prior art (CN104175824A and CN103963590A), this
In invention, semi-independent suspension is connected with semiaxis simultaneously, can not only improve suspension integral rigidity, improve wheel alignment parameter, and
Bearing capacity and the reliability of suspension system can be significantly increased；The most described leaf spring is monolithic leaf spring, it is possible to reduce processing, dress
Join technology difficulty, reduce production cost, and leaf spring two ends be all bolted, it is to avoid CN104175824A and
Leaf spring and the movable connection method of knuckle in CN103963590A, it can be ensured that the reliability of suspension system.
Accompanying drawing explanation
Fig. 1 is the population structure schematic diagram of the present invention.
Fig. 2 is a piece of tilting leaf spring two ends connection diagrams.
Fig. 3 is four canted-plate spring structures and semiaxis and vehicle frame connection diagram.
Fig. 4 is that tilting leaf spring uses rubber bushing attachment structure schematic diagram with vehicle bridge connecting elements.
Fig. 5 is tilting leaf spring and rubber bushing attachment structure schematic diagram.
Fig. 6 is the structural representation of semiaxis type of attachment.
Fig. 7 is the structural representation of semiaxis another kind type of attachment.
Fig. 8 is semiaxis and the frame joint structure schematic diagram of another kind of type of attachment.
Fig. 9 is off the another kind of structural representation of formula semiaxis and vehicle bridge connecting elements.
In figure: 1 vehicle frame；The tilting leaf spring of 2a first；Second tilting leaf spring of 2b；The 3rd tilting leaf spring of 2c；2d—
4th tilting leaf spring；3 vehicle frame connecting elements；4 wheels；5 vehicle bridge connecting elements；6 semiaxis；7 first bearing pins；
8a the first rubber mat plate；8b the second rubber mat plate；9 first rubber bushings；10 second rubber bushings；11 second
Bearing pin；12 breakaway-element semiaxis.
Detailed description of the invention
Structural principle and detailed description of the invention to the present invention are described further below in conjunction with the accompanying drawings.
Fig. 1 is the overall construction drawing of the present invention, and its overall structure is about m plane (m plane is the longitudinally asymmetric median plane of vehicle frame 1)
Symmetry, this semi-independent suspension of tilting leaf spring includes two semi-independent draft hitch of vehicle frame 1, semiaxis 6 and vehicle frame both sides, each
Semi-independent draft hitch includes leaf spring, vehicle bridge connecting elements 5, wheel 4 and vehicle frame connecting elements 3.Semiaxis 6 one end passes through first
7 and vehicle frame 1 connect, the other end consolidates with vehicle bridge connecting elements 5.Vehicle frame connecting elements 3 is linked by bolt and vehicle frame 1,
Vehicle bridge connecting elements 5 consolidates with semiaxis 6；Leaf spring includes four tilting leaf springs, i.e. first tilting leaf spring 2a, second tilting
Leaf spring 2b, the 3rd tilting leaf spring 2c and the 4th tilting leaf spring 2d, every tilting leaf spring one end and vehicle frame connecting elements 3 are even
Connecing, the other end and vehicle bridge connecting elements 5 connect；Described first tilting leaf spring 2a and the 4th tilting leaf spring 2d is about semiaxis
Symmetry, second tilting leaf spring 2b and the 3rd tilting leaf spring 2c are about half axial symmetry；First tilting leaf spring 2a, the 4th
The intersection of longitudinally asymmetric median plane determined by tilting leaf spring 2d and second tilting leaf spring 2b, the 3rd tilting leaf spring 2c institute are really
The intersection of fixed longitudinally asymmetric median plane is parallel to each other or conllinear.
Determined by described first tilting leaf spring 2a and the 4th tilting leaf spring 2d, the angular range of longitudinally asymmetric median plane is
60 °～120 °, the angular range of longitudinally asymmetric median plane determined by second tilting leaf spring 2b and the 3rd tilting leaf spring 2c is
60 °～120 °.Preferably, the folder of longitudinally asymmetric median plane determined by first tilting leaf spring 2a and the 4th tilting leaf spring 2d
Angle is 90 °, and determined by second tilting leaf spring 2b and the 3rd tilting leaf spring 2c, the angle of longitudinally asymmetric median plane is 90 °.
This arrangement takes full advantage of the confined space of vehicle, simultaneously it is also possible that tilting plate spring suspension brackets has preferable rigidity with strong
Degree.
Fig. 2 is a piece of tilting leaf spring two ends connection diagrams, and wherein first tilting leaf spring 2a one end is provided with the first rubber mat plate
8a, is then bolted with vehicle frame connecting elements 3；The other end is provided with the second rubber mat plate 8b, is then connected with vehicle bridge
Component 5 is bolted；Rubber bushing can be with cushion load, raising vehicle riding comfort.
Fig. 3 is four pieces of canted-plate spring structures and semiaxis and vehicle frame connection diagram, and one end of every tilting leaf spring is bolted
On vehicle frame connecting elements 3, the other end is also to be bolted to connect on framework 5 in vehicle bridge, vehicle bridge connecting elements 5 and half
Axle 6 consolidates, and vehicle frame connecting elements 3 is bolted with vehicle frame 1.The type of attachment of four leaf springs is identical.
Fig. 4 is that tilting leaf spring uses rubber bushing attachment structure schematic diagram with vehicle bridge connecting elements, and wherein Fig. 5 is that Fig. 4 is about π
The profile of the plane longitudinally asymmetric median plane of the 4th tilting leaf spring (the π plane be)；Every tilting leaf spring is by bolt and car
Bridging connection member connects, and is provided with the first rubber bushing on bolt, and rubber bushing and rubber mat plate functional similarity have slow
With shock loading and the function avoiding stress to concentrate.
Fig. 6 is the structural representation of semiaxis type of attachment, and semiaxis 6 one end consolidates with vehicle bridge connecting elements 5, and the other end is by the
One bearing pin 7 is connected with vehicle frame 1, and is provided with the second rubber bushing 10 on the first bearing pin 7.
Fig. 7 is the structural representation of semiaxis another kind type of attachment, semiaxis 6 near wheel one end and breakaway-element semiaxis 12 by the
Two bearing pins 11 are hinged, and breakaway-element semiaxis 12 consolidates with vehicle bridge connecting elements 5, and the other end is by the first bearing pin 7 with vehicle frame 1 even
Connect, and the second rubber bushing 10 is installed on the first bearing pin 7.
Fig. 8 is semiaxis and the frame joint structure schematic diagram of another kind of type of attachment, its overall structure about vehicle frame longitudinally asymmetric in
Heart face m is symmetrical.Semiaxis is divided into left and right two parts, and left and right two parts are connected by the second bearing pin 11.This arrangement can be effective
The bob reducing wheel time the change impact on wheel alignment parameter of semiaxis attitude angle.
Tilting leaf spring with the another embodiment of the connected mode of vehicle bridge connecting elements 5 is: tilting leaf spring ends is processed as grasswort knot
Structure, is then connected with vehicle bridge connecting elements 5 by bolt；As shown in Figure 4, for the structure of tilting leaf spring Yu vehicle bridge connecting elements
Schematic diagram；Fig. 5 is the sectional view along π plane, and tilting leaf spring is connected with vehicle bridge connecting elements 5 by bolt, and on bolt
Rubber bushing 9 is installed.
In the present invention, the arrangement preferred version of two semiaxis of propons is: about vehicle frame, two semiaxis are longitudinally asymmetric about vehicle frame 1
Median plane m is symmetrical, and the axis of two semiaxis in left and right is at grade, or two, left and right semiaxis is reverse V-shaped layout.The party
Case not only increase vehicle by property, also improve the bearing capacity of vehicle simultaneously.
In the present invention, the preferred type of attachment of semiaxis is breakaway-element: semiaxis is divided into left and right two parts, i.e. breakaway-element semiaxis 12 and semiaxis
6, and semiaxis 6 is longer than breakaway-element semiaxis 12, both are connected by the second bearing pin 11.This arrangement can effectively reduce car
The semiaxis attitude angle change impact on wheel alignment parameter during the bob taken turns.
Using the semi-independent suspension frame structure of tilting leaf spring in the present invention, relative to tradition dependent longitudinal multi-disc leaf spring design, it is permissible
Effectively reducing the variable quantity of vehicle wheel alignment parameter in the process of moving, the most tilting leaf spring essence belongs to parallel-connection structure, it is ensured that
The bearing capacity of vehicle and reliability, reduce the inordinate wear of tire, and its carrying centre-to-centre spacing is relatively big simultaneously, improves car load and resists
Roll capability, beneficially car load control stability.Involved by relatively prior art CN104175824A and CN103963590A
Semi-independent plate spring suspension brackets, in the present invention, both sides suspension is connected with semiaxis simultaneously, can not only improve suspension integral rigidity, improve car
Wheel positional parameter, and bearing capacity and the reliability of suspension system can be significantly increased；The most described leaf spring is monolithic leaf spring,
Processing, assembly technology difficulty can be reduced, reduce production cost, and leaf spring two ends are all bolted, it is to avoid
The movable connection method of leaf spring and knuckle in CN104175824A and CN103963590A, it can be ensured that suspension system reliable
Property.
In the present invention, the miscellaneous parts such as bolt, hub, brakes it are not involved with.Can have according to different automobile types
The applying working condition of body, the known parameters such as concrete size of each parts select the suitable kind of associated components and parameters unit to be designed,
Reason is the substitutive characteristics that these parts are not involved with present configuration.
Claims (7)
1. use a semi-independent suspension for tilting leaf spring, including vehicle frame (1), two semiaxis (6) and the two and half of vehicle frame both sides
Independent suspension frame unit, the semi-independent draft hitch of every side includes that leaf spring, vehicle bridge connecting elements (5), wheel (4) and vehicle frame connect
Component (3)；Vehicle frame connecting elements (3) is fixed on vehicle frame (1), and vehicle bridge connecting elements (5) and semiaxis (6) are affixed；
Semiaxis (6) is affixed with vehicle bridge connecting elements (5) near wheel one end, and the other end passes through the first bearing pin (7) and vehicle frame (1)
Hinged；
It is characterized in that: described leaf spring includes four tilting leaf springs, i.e. the tilting leaf spring of first (2a), second tilting leaf spring (2b),
3rd tilting leaf spring (2c) and the 4th tilting leaf spring (2d), every tilting leaf spring one end is with vehicle frame connecting elements (3) even
Connecing, the other end is connected with vehicle bridge connecting elements (5)；The tilting leaf spring of described first (2a) and the 4th tilting leaf spring (2d)
Symmetrical about semiaxis (6), second tilting leaf spring (2b) is symmetrical about semiaxis (6) with the 3rd tilting leaf spring (2c),
The intersection of longitudinally asymmetric median plane determined by the tilting leaf spring of first (2a), the 4th tilting leaf spring (2d) and second tilting
The intersection of longitudinally asymmetric median plane determined by leaf spring (2b), the 3rd tilting leaf spring (2c) is parallel to each other or conllinear.
2. according to a kind of semi-independent suspension using tilting leaf spring described in claim 1, it is characterised in that: first canted-plate
Determined by spring (2a) and the 4th tilting leaf spring (2d), the angular range of longitudinally asymmetric median plane is 60°～120°, second
Determined by tilting leaf spring (2b) and the 3rd tilting leaf spring (2c), the angular range of longitudinally asymmetric median plane is 60°～120°。
3. according to a kind of semi-independent suspension using tilting leaf spring described in claim 2, it is characterised in that: first canted-plate
Determined by spring 2a and the 4th tilting leaf spring 2d, the angle of longitudinally asymmetric median plane is 90 °, second tilting leaf spring 2b with
Determined by 3rd tilting leaf spring 2c, the angle of longitudinally asymmetric median plane is 90 °.
4. according to a kind of semi-independent suspension using tilting leaf spring described in claim 1,2 or 3, it is characterised in that: described
Semiaxis (6) is connected with vehicle frame by the first bearing pin (7), and is provided with rubber bushing (10) on the first bearing pin.
5. according to a kind of semi-independent suspension using tilting leaf spring described in claim 1,2 or 3, it is characterised in that: semiaxis (6)
Hinged with breakaway-element semiaxis (12) by the second bearing pin (11) near wheel one end, breakaway-element semiaxis (12) is connected with vehicle bridge
Component (5) is fixing to be connected.
6. according to a kind of semi-independent suspension using tilting leaf spring described in claim 1, it is characterised in that: every tilting leaf spring
And between vehicle frame connecting elements (3), it is provided with the first rubber mat plate (8a)；Between every tilting leaf spring and vehicle bridge connecting elements (5)
It is provided with the second rubber mat plate (8b).
7. according to a kind of semi-independent suspension using tilting leaf spring described in claim 1, it is characterised in that: every tilting leaf spring
It is bolted with vehicle bridge connecting elements (5), bolt is provided with rubber bushing (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510330387.1A CN104890464B (en) | 2015-06-15 | 2015-06-15 | Semi-independent suspension with inclined leaf springs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510330387.1A CN104890464B (en) | 2015-06-15 | 2015-06-15 | Semi-independent suspension with inclined leaf springs |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104890464A CN104890464A (en) | 2015-09-09 |
| CN104890464B true CN104890464B (en) | 2017-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510330387.1A Active CN104890464B (en) | 2015-06-15 | 2015-06-15 | Semi-independent suspension with inclined leaf springs |
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| Country | Link |
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| CN (1) | CN104890464B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105365485A (en) * | 2015-10-29 | 2016-03-02 | 海宁市恺能汽配有限公司 | Non-drive rear axle for vehicle |
| CN106394154B (en) * | 2016-11-30 | 2019-04-30 | 东风商用车有限公司 | Single front axle structure with independent suspension for commercial vehicle |
| CN106476556B (en) * | 2016-11-30 | 2018-12-07 | 东风商用车有限公司 | Leaf spring and knuckle linking bridge suitable for put leaf spring suspension to one side |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3644803A1 (en) * | 1986-01-07 | 1987-07-16 | Mitsubishi Steel Mfg | AXLE SUSPENSION FOR VEHICLES |
| DE19801668B4 (en) * | 1998-01-17 | 2005-06-23 | Daimlerchrysler Ag | Independent wheel suspension with at least two consecutively arranged transverse leaf springs |
| CN203019999U (en) * | 2012-12-19 | 2013-06-26 | 北汽福田汽车股份有限公司 | Rear suspension frame and automobile |
| CN203957770U (en) * | 2014-07-30 | 2014-11-26 | 安徽江淮汽车股份有限公司 | The connection structure of a kind of dependent suspension vehicle bridge and leaf spring |
| CN204736668U (en) * | 2015-06-15 | 2015-11-04 | 清华大学 | Adopt half independent suspension of putting leaf spring to one side |
-
2015
- 2015-06-15 CN CN201510330387.1A patent/CN104890464B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3644803A1 (en) * | 1986-01-07 | 1987-07-16 | Mitsubishi Steel Mfg | AXLE SUSPENSION FOR VEHICLES |
| DE19801668B4 (en) * | 1998-01-17 | 2005-06-23 | Daimlerchrysler Ag | Independent wheel suspension with at least two consecutively arranged transverse leaf springs |
| CN203019999U (en) * | 2012-12-19 | 2013-06-26 | 北汽福田汽车股份有限公司 | Rear suspension frame and automobile |
| CN203957770U (en) * | 2014-07-30 | 2014-11-26 | 安徽江淮汽车股份有限公司 | The connection structure of a kind of dependent suspension vehicle bridge and leaf spring |
| CN204736668U (en) * | 2015-06-15 | 2015-11-04 | 清华大学 | Adopt half independent suspension of putting leaf spring to one side |
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| Publication number | Publication date |
|---|---|
| CN104890464A (en) | 2015-09-09 |
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