CN206862614U - A kind of variation rigidity rigidity of plate spring fitting and Coupled Rigid-flexible device - Google Patents
A kind of variation rigidity rigidity of plate spring fitting and Coupled Rigid-flexible device Download PDFInfo
- Publication number
- CN206862614U CN206862614U CN201720581206.7U CN201720581206U CN206862614U CN 206862614 U CN206862614 U CN 206862614U CN 201720581206 U CN201720581206 U CN 201720581206U CN 206862614 U CN206862614 U CN 206862614U
- Authority
- CN
- China
- Prior art keywords
- leaf spring
- spring
- vehicle frame
- lifting lug
- rigidity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Vehicle Body Suspensions (AREA)
- Springs (AREA)
Abstract
A kind of variation rigidity rigidity of plate spring fitting and Coupled Rigid-flexible device is claimed in the utility model, including：Rear suspension assembly model and rear leaf spring and vibration damper assembly simplified model, the rear suspension assembly model includes leaf spring front lifting lug, leaf spring geometrical clamp, center fixing bolt, U-bolt, limited block, leaf spring rear lifting lug, rear lifting lug connection ring, rear shock absorber and symmetrical side leaf spring, the leaf spring front lifting lug connects leaf spring front lifting lug and vehicle frame by axle sleeve, the leaf spring geometrical clamp fixed joint leaf spring prevents leaf spring horizontal looseness, the center fixing bolt is in the center of leaf spring, U-bolt is fixedly connected with major-minor leaf spring with vehicle bridge, the limited block plays limitation leaf spring catenary motion under limiting condition, leaf spring rear lifting lug, rear lifting lug connection ring is connected leaf spring rear lifting lug with vehicle frame by hanger connection ring, rear shock absorber provides damping to spring mass system；The vibration damper assembly simplified model includes major-minor leaf spring body and leaf spring geometrical clamp.
Description
Technical field
The utility model belongs to car test techniqes field, particularly belongs to a kind of variation rigidity rigidity of plate spring fitting and hard and soft coupling
Attach together and put.
Background technology
Leaf spring has non-linear rigidity architectural characteristic, therefore exists at present with certain difficulty when simulating rigidity
Non-linear rigidity category, the precision of leaf spring simulation is very inaccurate, and the utility model proposes one kind to be fitted leaf spring
In the stiffness characteristics of the different operating modes such as unloaded and fully loaded, different the way of restraint is carried out according to different load working conditions, and then intend
Close for the close nonlinear stiffness characteristic of test result, there is certain engineering use value.
The content of the invention
The utility model aims to solve the problem that above problem of the prior art.Propose a kind of variation rigidity rigidity of plate spring fitting and just
Soft coupling device.The technical solution of the utility model is as follows：
A kind of variation rigidity rigidity of plate spring fitting and Coupled Rigid-flexible device, it includes：Rear suspension assembly model and rear leaf spring and
Vibration damper assembly simplified model, the rear suspension assembly model include leaf spring front lifting lug, leaf spring geometrical clamp, center fixing bolt, U
Type bolt, limited block, leaf spring rear lifting lug, rear lifting lug connection ring, rear shock absorber and symmetrical side leaf spring, the leaf spring front lifting lug pass through
Axle sleeve, which connects leaf spring front lifting lug and vehicle frame, the leaf spring geometrical clamp fixed joint leaf spring, prevents leaf spring horizontal looseness, and the center is consolidated
Bolt is determined in the center of leaf spring, for connecting mainboard spring, subplate spring, prevents major-minor leaf spring relative motion, U-bolt is main
Subplate spring is fixedly connected with vehicle bridge plays a part of fixed suspension and vehicle frame, and the limited block plays limitation leaf spring in limiting condition
Lower catenary motion, prevent that leaf spring from causing structural damage caused by large deformation campaign because of load excessive, leaf spring rear lifting lug, after hang
Ear connection ring is connected leaf spring rear lifting lug with vehicle frame by hanger connection ring, and rear shock absorber is provided spring mass system and damped
To the effect of Vibrant buffer；The vibration damper assembly simplified model includes major-minor leaf spring body and leaf spring geometrical clamp.
Including main spring and vehicle frame contiguous block, secondary bullet further, in addition to the connection analogue means of rear leaf spring and vehicle frame,
It is main after spring and vehicle frame contiguous block, rear shock absorber, U-bolt, auxiliary spring and vehicle frame contiguous block, after main spring and vehicle frame contiguous block
Spring needs simulation main spring to be connected with vehicle frame contiguous block, auxiliary spring and vehicle frame when being fitted with vehicle frame contiguous block non-linear rigidity
The way of restraint after block, auxiliary spring and vehicle frame contiguous block, after main spring and vehicle frame contiguous block, wherein main spring are connected with vehicle frame
Block, auxiliary spring enter in rigidity fit procedure the corresponding free degree of row constraint with vehicle frame contiguous block, and auxiliary spring connects with vehicle frame
After connecing block, the main spring free degree corresponding with entering row constraint after vehicle frame contiguous block in rigidity fit procedure.
Further, in addition to it is described after leaf spring and drive axle connection analogue means, including leaf spring, driving behind right side
Bridge, U-bolt, limited block, rear shock absorber, symmetrical side leaf spring, leaf spring and car are simulated behind right side during the Coupled Rigid-flexible of leaf spring
The connection of bridge and the annexation of the front and rear hanger and vehicle frame of leaf spring, the connection application of leaf spring center U-bolt and vehicle bridge are solid
Fixed secondary simulation connection, front and rear hanger according to actual motion relation use with the simulation connection of bushing power.
The advantages of the utility model and have the beneficial effect that：
1st, the rigidity model of fit of the unloaded leaf spring based on constraints and border is proposed.
2nd, propose and restrained boundary condition is fully loaded with based on variable boundary condition, and non-linear rigidity is fitted mould under full load condition
Type.
Brief description of the drawings
Fig. 1 is the utility model rear suspension assembly simulation schematic diagram；
Fig. 2 is leaf spring and vibration damper assembly model simplification schematic diagram after the utility model；
Fig. 3 is leaf spring and vehicle frame connection diagram after the utility model；
Fig. 4 is rear leaf spring and drive axle connection diagram；
Fig. 5 is leaf spring stress diagram after idle mode；
Fig. 6 is leaf spring stress diagram after fully loaded pattern；
Fig. 7 is rear leaf spring Coupled Rigid-flexible installation diagram.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
It is clear, describe in detail.Described embodiment is only part of the embodiment of the present utility model.
The utility model solve above-mentioned technical problem technical scheme be：
1st, rear suspension assembly
Commercial car rear suspension assembly is as shown in figure 1, by 1- leaf spring front lifting lug 2- leaf spring geometrical clamp 3- center fixing bolt 4-U
Type bolt 5- limited block 6- leaf spring rear lifting lug 7- rear lifting lug connection ring 8- rear shock absorber 9- symmetrical sides leaf spring forms.Structure 1 passes through
Axle sleeve, which connects leaf spring front lifting lug and vehicle frame, the fixed joint leaf spring of structure 2, prevents leaf spring horizontal looseness.Centre bit of the structure 3 in leaf spring
Put, connection mainboard spring, subplate spring plays prevents major-minor leaf spring relative motion.Structure 4 is by U-bolt major-minor leaf spring and vehicle bridge
It is fixedly connected and plays a part of fixed suspension and vehicle frame.Structure 5 plays limitation leaf spring catenary motion under limiting condition, prevents plate
Spring causes structural damage caused by large deformation campaign because of load excessive.Structure 6,7 is by hanger connection ring being hung after leaf spring
Ear is connected with vehicle frame.Structure 8 provides damping to spring mass system and plays a part of Vibrant buffer.
2nd, rear leaf spring and vibration damper assembly model simplification
Afterwards leaf spring and vibration damper assembly model simplification as shown in Figure 2, it is necessary to delete structure A- leaf spring front lifting lug axle sleeves 8- after
Damper 4-U types bolt B-leaf spring rear lifting lug connection ring, major-minor leaf spring body and leaf spring geometrical clamp are only retained after model simplification,
Remove the structures such as hanger axle sleeve, connection ring.
3rd, leaf spring and vehicle frame and the assembly simulation of drive shaft
Afterwards the connection diagram of leaf spring and vehicle frame as shown in figure 3, by 11- main springs and vehicle frame contiguous block 12- auxiliary springs with
After vehicle frame contiguous block 13- rear shock absorbers 14-U types bolt 15- auxiliary springs and vehicle frame contiguous block 16- main springs with after vehicle frame contiguous block
Composition, non-linear rigidity need the way of restraint of model configuration 11,12,15,16 when being fitted, wherein structure 11,12 is intended in rigidity
Enter the corresponding free degree of row constraint during conjunction can be without being modeled in detail, and structure 15,16 is similarly simulated with 11,12 structures.
The connection diagram of leaf spring and drive axle is as shown in figure 4, by leaf spring 22- drive axle 4-U type bolts behind 21- right sides afterwards
5- limited block 8- rear shock absorber 23- symmetrical sides leaf spring forms.Need to simulate leaf spring and vehicle bridge during the Coupled Rigid-flexible of leaf spring
The annexation of the front and rear hanger and vehicle frame of connection and leaf spring.The connection application fixed joint of leaf spring center U-bolt and vehicle bridge
Simulation connection, front and rear hanger is simulated according to actual motion relation can also use the simulation connection of bushing power.
The rigidity approximating method of leaf spring after 4 variation rigidities
4.1 idle mode rigidity approximating methods
1st, carry out rear spring model simplification, handle sheet metal between primary relationship, set metallic plate between
Coefficient of friction, define main contact surface, from contact surface.
2nd, force analysis is carried out to major and minor leaf spring, defines restriction relation and load application position.The leaf spring of idle mode by
Power as shown in figure 5, will enter at the front and rear hanger of mainboard spring row constraint constraint the 2-6 frees degree, it is allowed to the transverse shifting of leaf spring other
The free degree carries out staff cultivation, measures camber under the free state of leaf spring and carries out record initial value.
3rd, according to the design standard of leaf spring, the load under application idle mode is carried out, loading from 0-7800N gradually increases,
Maximum constraint is loaded in the limits of leaf spring stress, and records the camber variable quantity of each load point.
4th, according to each result of calculation, the parameters such as the modulus of elasticity of mainboard spring, density, coefficient of contact friction is adjusted and are carried out
Corrected Calculation result repeatedly, draws the rigidity value close with design rigidity, the alignment error control of modulus of elasticity positive and negative 5% with
Interior, coefficient of friction is controlled in the range of 0.1-0.3.Each Parameters variation amount and revision value are recorded, until calculating and fitting
In the consistent or close rigidity value of design rigidity.
4.2 fully loaded-overload pattern rigidity approximating methods
1st, carry out rear spring model simplification, handle sheet metal between primary relationship, set metallic plate between
Coefficient of friction, define main contact surface, from contact surface.
2nd, force analysis is carried out to major and minor leaf spring, defines restriction relation and load application position.The leaf spring of fully loaded pattern by
Power as shown in fig. 6, will enter at the front and rear hanger of mainboard spring row constraint constraint the 2-6 frees degree, it is allowed to the transverse shifting of leaf spring other
The free degree carries out staff cultivation, measures camber under the free state of leaf spring and carries out record initial value.
3rd, according to the design standard of leaf spring, carry out applying the load under fully loaded-overload pattern, load from 12000-22000N
Gradually increase increases the process of unloading simultaneously, loads from 22000-12000N.Load limit value of the Maximum constraint in leaf spring stress
In the range of, and record the camber variable quantity of each load point.The variable quantity of camber should be according to loading procedure and uninstall process
Average value is as mean arc High variation amount.The rigidity fitting of subplate spring and mainboard spring is divided into three phases mainboard spring, subplate spring point
From state, mainboard spring, subplate spring start contact condition, and mainboard spring, subplate spring completely attach to state.Load is applied to centre bolt
Place, and in the top of leaf spring, 200 × 200mm of intermediate region zone time concentrfated load.
4th, according to each result of calculation, the parameters such as the modulus of elasticity of mainboard spring, density, coefficient of contact friction is adjusted and are carried out
Corrected Calculation result repeatedly, draws the rigidity value close with design rigidity, the alignment error control of modulus of elasticity positive and negative 5% with
Interior, coefficient of friction is controlled in the range of 0.1-0.3.Each Parameters variation amount and revision value are recorded, until calculating and fitting
In the consistent or close rigidity value of design rigidity.
Fig. 6 is fully loaded with leaf spring stress diagram after pattern
5th, the Coupled Rigid-flexible method of variation rigidity
The neutral file of leaf spring is exported, retains the modes such as contact friction between leaf spring, the simulation of variation rigidity mainly by
The load of leaf spring and the camber of leaf spring define, and the stiffness characteristics of simulation no-load-fully loaded-overload operating mode are different by applying
Preload realization.
1st, in the range of linear rigidity, the neutral file of leaf spring idle mode is input to by the Coupled Rigid-flexible method of idle mode
In kinetic model, according to the camber of zero load, unloaded rigging position, leaf spring neutral file is assembled, apply unit force
Or the method for bushing power is in later half yellow U-bolt and the link position of drive axle, the stress of addition predetermined load simulation no-load
Relation, now the model of Coupled Rigid-flexible is exactly the stiffness coupling model under idle mode, and leaf spring neutral file offer rigidity is specific,
Preload and also embodied in kinetic model.
2nd, variation rigidity Coupled Rigid-flexible approximating method, rear leaf spring neutral file is extracted into the process that simulation is fully loaded and overloads,
Variation rigidity characteristic is realized, applies the circular order that the method preloaded is fully loaded load-overload load-fully loaded load unloading, plate
The camber of spring neutral file is full-loading condition camber, applies the load for preloading simulation full-loading condition by bushing power, in load
File in make varying load processing ,-overload-the fully loaded cyclic loading operating mode that makes load fully loaded, and only allow leaf spring vertical
Motion, free degree constraint is carried out to leaf spring.
3rd, leaf spring U-bolt being carried out into bushing power with drive axle to be connected, bushing force direction vertical direction has certain rigidity,
The progress varying load processing in bushing power is preloaded, leaf spring front lifting lug is fixedly connected or allowed around axle sleeve direction with vehicle frame
Rotate, the connected mode of rear leaf spring and vehicle frame is that the prismatic pair for allowing a direction translational is simulated.Simulation can be real more than
Variation rigidity characteristic after existing major-minor leaf spring contact.
In description of the present utility model, unless otherwise prescribed with restriction, it is necessary to explanation, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be mechanical connection or the company of electrical connection or two element internals
It is logical, can be joined directly together, can also be indirectly connected by intermediary, for the ordinary skill in the art, can
To understand the concrete meaning of above-mentioned term as the case may be.
The above embodiment is interpreted as being merely to illustrate the utility model rather than limitation guarantor of the present utility model
Protect scope.After the content of record of the present utility model has been read, technical staff can make various changes to the utility model
Or modification, these equivalence changes and modification equally fall into the utility model claims limited range.
Claims (3)
1. a kind of variation rigidity rigidity of plate spring fitting and Coupled Rigid-flexible device, it is characterised in that including：Rear suspension assembly model and after
Leaf spring and vibration damper assembly simplified model, the rear suspension assembly model include leaf spring front lifting lug (1), leaf spring geometrical clamp (2), in
Heart fixing bolt (3), U-bolt (4), limited block (5), leaf spring rear lifting lug (6), rear lifting lug connection ring (7), rear shock absorber (8)
And symmetrical side leaf spring (9), the leaf spring front lifting lug (1) connect leaf spring front lifting lug and vehicle frame, the leaf spring geometrical clamp by axle sleeve
(2) fixed joint leaf spring prevents leaf spring horizontal looseness, and the center fixing bolt (3) is in the center of leaf spring, for connecting master
Leaf spring, subplate spring, major-minor leaf spring relative motion is prevented, U-bolt (4), which is fixedly connected with major-minor leaf spring with vehicle bridge, plays fixed hang
The effect of frame and vehicle frame, the limited block (5) play limitation leaf spring catenary motion under limiting condition, prevent leaf spring because load
Excessive and cause structural damage caused by large deformation campaign, leaf spring rear lifting lug (6), rear lifting lug connection ring (7) are connected by hanger
Ring is connected leaf spring rear lifting lug with vehicle frame, and rear shock absorber (8) provides damping to spring mass system and plays a part of Vibrant buffer；
The vibration damper assembly simplified model includes major-minor leaf spring body and leaf spring geometrical clamp.
2. variation rigidity rigidity of plate spring fitting according to claim 1 and Coupled Rigid-flexible device, it is characterised in that after also including
The connection simulation of leaf spring and vehicle frame, including main spring and vehicle frame contiguous block (11), auxiliary spring and vehicle frame contiguous block (12), rear damping
After device (13), U-bolt (14), auxiliary spring and vehicle frame contiguous block after (15), main spring and vehicle frame contiguous block (16), main spring with
Vehicle frame contiguous block (11) non-linear rigidity needs simulation main spring to be connected with vehicle frame contiguous block (11), auxiliary spring and vehicle frame when being fitted
After block (12), auxiliary spring and vehicle frame contiguous block after (15), main spring and vehicle frame contiguous block (16) the way of restraint, wherein main spring
Enter the corresponding free degree of row constraint in rigidity fit procedure i.e. with vehicle frame contiguous block (11), auxiliary spring and vehicle frame contiguous block (12)
Can, auxiliary spring enters row constraint with (16) after (15), main spring and vehicle frame contiguous block after vehicle frame contiguous block in rigidity fit procedure
The corresponding free degree.
3. variation rigidity rigidity of plate spring fitting according to claim 2 and Coupled Rigid-flexible device, it is characterised in that also including institute
State the connection analogue means of rear leaf spring and drive axle, including it is leaf spring (21) behind right side, drive axle (22), U-bolt (4), spacing
Block (5), rear shock absorber (8), symmetrical side leaf spring (23), leaf spring and vehicle bridge are simulated behind right side during the Coupled Rigid-flexible of leaf spring (21)
Connection and leaf spring front and rear hanger and vehicle frame annexation, leaf spring center U-bolt and vehicle bridge connection application fix
Pair simulation connection, front and rear hanger according to actual motion relation use with the simulation connection of bushing power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720581206.7U CN206862614U (en) | 2017-05-24 | 2017-05-24 | A kind of variation rigidity rigidity of plate spring fitting and Coupled Rigid-flexible device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720581206.7U CN206862614U (en) | 2017-05-24 | 2017-05-24 | A kind of variation rigidity rigidity of plate spring fitting and Coupled Rigid-flexible device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206862614U true CN206862614U (en) | 2018-01-09 |
Family
ID=60825270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720581206.7U Active CN206862614U (en) | 2017-05-24 | 2017-05-24 | A kind of variation rigidity rigidity of plate spring fitting and Coupled Rigid-flexible device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206862614U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108959762A (en) * | 2018-06-29 | 2018-12-07 | 江铃汽车股份有限公司 | A kind of efficient bushing approximating method |
| CN109241666A (en) * | 2018-09-30 | 2019-01-18 | 江西远成汽车技术股份有限公司 | A kind of calculating method of stiffness of plate spring assembly, system and readable storage medium storing program for executing |
| CN117949155A (en) * | 2024-03-26 | 2024-04-30 | 中国科学院苏州生物医学工程技术研究所 | Flexible hinge rigidity detection method |
-
2017
- 2017-05-24 CN CN201720581206.7U patent/CN206862614U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108959762A (en) * | 2018-06-29 | 2018-12-07 | 江铃汽车股份有限公司 | A kind of efficient bushing approximating method |
| CN109241666A (en) * | 2018-09-30 | 2019-01-18 | 江西远成汽车技术股份有限公司 | A kind of calculating method of stiffness of plate spring assembly, system and readable storage medium storing program for executing |
| CN117949155A (en) * | 2024-03-26 | 2024-04-30 | 中国科学院苏州生物医学工程技术研究所 | Flexible hinge rigidity detection method |
| CN117949155B (en) * | 2024-03-26 | 2024-06-07 | 中国科学院苏州生物医学工程技术研究所 | Flexible hinge rigidity detection method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206862614U (en) | A kind of variation rigidity rigidity of plate spring fitting and Coupled Rigid-flexible device | |
| CN113465950B (en) | Vehicle suspension rack | |
| CN106951639B (en) | Rigidity-flexibility coupling simulation method for nonlinear rigidity steel plate spring | |
| CN107229785A (en) | A kind of commercial car steeraxle, vehicle frame and connector dynamics simulation device | |
| CN107356416A (en) | A kind of bogie axle casing static strength and fatigue experimental device | |
| CN106446387A (en) | Fatigue life prediction method of high-speed magnetic levitation train brake magnet connecting device | |
| CN102519736B (en) | Test board of automobile shock damper and steel plate spring, compatibility test system and method thereof | |
| Xu et al. | An analysis of the self-excited torsional vibration of high-speed train drive system | |
| CN103112508B (en) | Design method for optimum speed characteristics of trunk cab damper | |
| CN206106852U (en) | Swing arm bush and swing arm liner assembly | |
| CN214215473U (en) | Auxiliary supporting device for gearbox and vehicle | |
| CN116502343B (en) | Automobile suspension optimal design method, system, storage medium and equipment | |
| CN208812918U (en) | Car dependent rear suspension | |
| Jonsson | Simulation of dynamical behaviour of a front wheel suspension | |
| CN112406554B (en) | Three-stage buffering vibration reduction system and method for adapting to collision vibration of double-track suspended vehicle body | |
| CN100361833C (en) | Shock-proof suspension for engineering vehicle front bridge | |
| CN107449595A (en) | A kind of vehicle leaf spring Coupled Rigid-flexible analogy method | |
| Feng et al. | Push rod failure analysis of a mining heavy dump truck | |
| CN107719095A (en) | A kind of engine front mounting rubber cushion | |
| CN115204002A (en) | Engine explosion impact load calculation method and system | |
| CN112035953B (en) | Rigid-flexible coupling-based electric tricycle frame lightweight design method and system | |
| CN110589023A (en) | Structure for disabling helicopter focusing vibration isolation system | |
| CN109030206B (en) | Test simulation system for railway tunnel base structure and method for determining mechanical response | |
| CN207267436U (en) | A kind of commercial car Front Leaf Spring rigidity fitting and Coupled Rigid-flexible device | |
| CN111506979A (en) | Complete vibration isolation design method for automobile suspension system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |