CN109297694A - A kind of anti-side rolling torsion rod fatigue experimental device and method - Google Patents
A kind of anti-side rolling torsion rod fatigue experimental device and method Download PDFInfo
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- CN109297694A CN109297694A CN201811171421.5A CN201811171421A CN109297694A CN 109297694 A CN109297694 A CN 109297694A CN 201811171421 A CN201811171421 A CN 201811171421A CN 109297694 A CN109297694 A CN 109297694A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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Abstract
The invention discloses a kind of anti-side rolling torsion rod fatigue experimental device and methods.Anti-side rolling torsion rod fatigue experimental device includes platform, augmentor, double crossbeam lever mechanisms, adjustable support；The right end of double crossbeam lever mechanisms connects augmentor；Front and back near double crossbeam lever mechanisms left end is respectively equipped with an adjustable support.Two front and back organized side by side couple are sidewindered crossbeam midpoint and are hinged on the same rotating stand, sidewinder at every and connect anti-side rolling torsion rod between crossbeam bottom surface and platform, connect anti-side rolling torsion rod between crossbeam, adjustable support and platform sidewindering；By the way that crossbeam right end application load is sidewindered, simulation real working condition carries out single-point bilateral loading to anti-side rolling torsion rod.It, can be simultaneously to more anti-side rolling torsion rods progress fatigue tests, it can be achieved that the suspension and fixation of a variety of different model anti-side rolling torsion rods, achieve the purpose that promote fatigue test efficiency using the present invention.
Description
Technical field
The present invention relates to experimental technique field, especially a kind of anti-side rolling torsion rod fatigue experimental device and method.
Background technique
With the fast development of China's rail traffic industry, high speed, comfortably has become rail vehicle design and manufacture at safety
Development trend.Anti-side rolling torsion rod and air spring united application are in two suspension of rail vehicle, so that the safety of vehicle, relaxing
Appropriateness has large increase.For anti-side rolling torsion rod as component important in bogie secondary suspension, effect is to overcome air bullet
The shortcomings that spring vertical stiffness causes the angle of roll to increase less constrains carbody sidewindering relative to bogie.Anti-side rolling torsion rod exists
Its performance must be detected before, especially rigidity and fatigue behaviour, for the comfortableness and security for ensuring vehicle, more
It needs to carry out it reasonable, comprehensive test.
In the prior art, need to carry out experiment on fatigue properties there are many model anti-side rolling torsion rod, and every kind of product needs to carry out
10000000 experiment on fatigue properties cause laboratory's existing weaponry and equipment to be difficult to meet the requirement that new product is quickly researched and developed, while existing
Load test is mostly to replace biaxial loadings to be tested using traditional unidirectional loading method of single-point, with vehicle actual condition
There are some differences.How according to the practical application operating condition of anti-side rolling torsion rod, from the angle of engineering practice, develop it is a kind of not
Be only capable of promoting tired efficiency, and can be carried out the experimental rig of bilateral loading again, to shorten the anti-side rolling torsion rod R&D cycle,
Experimentation cost is reduced to have very important significance.Anti-side rolling torsion rod mechanical property test can be divided into machinery by driving method at present
It loads and 2 kinds of hydraulic loaded.It is that single-point is unidirectional, two o'clock is two-way, 3 three-dimensionals load 3 kinds by loading method.This this loading method
It generally requires 2~3 hydraulic cylinders or eccentric wheel mechanism applies load or displacement carries out fatigue test, these loading methods occupy
It is more to test resource, low efficiency.
Application No. is the utility models of CN200820158556.3 to disclose a kind of rail traffic anti-side rolling torsion rod fatigue
Testing machine, including rack, workbench and electrical control cabinet, rack is " ⊥ " shape structure, in the center protrusion portion of rack " ⊥ " shape
Upper support device is housed at the top of point;Workbench is equipped in the center protrusion part side of " ⊥ " shape;In the center protrusion of " ⊥ " shape
The part other side is equipped with toothed gearing electric motor;Pass through lever on side of the center protrusion part of " ⊥ " shape by workbench side
Support base is equipped with lever assembly;And belt pulley is housed on toothed gearing electric motor output shaft, toothed gearing electric motor is driven by belt
Device is connect with upper support device, drives support shaft in upper support device to rotate by belt drive unit.Pacify in upper support shaft
Equipped with crank disc, crank-pin, upper support device is connect further through linkage with lever assembly, upper support device, linkage
Crank and rocker mechanism, perpendicular arrangement are formed with lever assembly, crank and rocker mechanism drives two end of anti-side rolling torsion rod by lever
Make opposite twist motion.Application No. is the utility models of CN201520344577.4 to be related to a kind of anti-rolling torsion bar system test dress
It sets, including load cylinder, tooling connecting rod, wears pin, support base, erecting bed, threaded rod, mounting plate, anti-rolling torsion bar system, support
Seat is fixed on erecting bed, and support base upper end is fastenedly connected with anti-rolling torsion bar system, and the lower end of 4 threaded rods is fixed on installation
On platform, upper end is fastenedly connected with mounting plate, and load cylinder is fastenedly connected with right end tooling connecting rod, left end tooling connecting rod and mounting plate
It is slidably connected, left and right tooling connecting rod is fastenedly connected with two bottom end bearing joints, two bottom end bearing joints and anti-rolling torsion bar system
Both ends are by wearing pin connection.The above prior art cannot simulate real working condition and carry out the examination of single-point biaxial loadings to anti-side rolling torsion rod
It tests.
Summary of the invention
The present invention provides a kind of anti-side rolling torsion rod fatigue experimental device and methods, can simulate real working condition confrontation and sidewinder
Torsion bar carries out single-point bilateral loading.
The technical scheme is that a kind of anti-side rolling torsion rod fatigue experimental device, including platform, to be mounted on platform upper right
The augmentor in portion, the double crossbeam lever mechanisms being mounted on platform, the adjustable support for being mounted on left part on platform；Double cross
The right end of beam lever mechanism connects augmentor；Front and back near double crossbeam lever mechanisms left end is respectively equipped with one can
It adjusts support device: being respectively preceding adjustable support and rear adjustable support.
Anti-side rolling torsion rod includes that torsion bar shaft, torsion arm, two support bases and two link assemblies, link assembly include connecting rod
Upper end flexural pivot mandrel, anti-side rolling torsion rod altogether there are four: anti-side rolling torsion rod one, anti-side rolling torsion rod two, anti-side rolling torsion rod three, anti-side rolling
Torsion bar four；Double crossbeam lever mechanisms include sidewindering crossbeam, rotating stand, rotation axis, rotation articulated shaft, mounting base, installation
Suspension arrangement on platform；The adjustable support includes the Adjustable bracing bar being mounted on platform, is mounted on adjustable supporting
The dynamic crossbeam of strut upper end, the fixation device being mounted on dynamic crossbeam；
Rotating stand is mounted on medium position above platform, and sidewindering crossbeam has two: rolling crossbeam positioned at the front side of front and is located at
Subsequent rear side rolls crossbeam；Two sidewinder crossbeam front and back and are arranged side by side, and two midpoints for sidewindering crossbeam are installed by rotation axis
On rotating stand, two right ends for sidewindering crossbeam pass through rotation articulated shaft connection augmentor；Every sidewinders crossbeam bottom surface
If there are three the mounting bases for connecting small end flexural pivot mandrel；
Positioned at front side rolling crossbeam bottom surface three mounting bases from left to right successively are as follows: the preceding mounting base positioned at rotating stand left
One, the preceding mounting base two positioned at rotating stand left and the preceding mounting base three positioned at rotating stand right are rolled in front side on platform
The first from left right side is equipped with two suspension arrangements: front-end equipment two and front-end equipment three, preceding mounting base two, preceding installation in front of crossbeam
Seat three, front-end equipment two, front-end equipment three be used for be separately connected anti-side rolling torsion rod one two small end flexural pivot mandrels,
Two support bases；
Positioned at rear side rolling crossbeam bottom surface three mounting bases from left to right successively are as follows: the rear mounting base positioned at rotating stand left
One, the rear mounting base two positioned at rotating stand left and the rear mounting base three positioned at rotating stand right are rolled in rear side on platform
One the first from left right side of crossbeam rear is equipped with two suspension arrangements: rear linkage two and rear linkage three, rear mounting base two, rear installation
Seat three, rear linkage two, rear linkage three be used for be separately connected anti-side rolling torsion rod two two small end flexural pivot mandrels,
Two support bases；
Lower section is equipped with suspension arrangement: front-end equipment one near the rolling crossbeam left end of front side on platform；In preceding adjustable support
Dynamic below the crossbeam platform be equipped with suspension arrangement: front-end equipment four；The fixation of preceding mounting base one, preceding adjustable support
Device, front-end equipment one, front-end equipment four are separately connected two small end flexural pivot mandrels of anti-side rolling torsion rod three, two
Support base；
Lower section is equipped with suspension arrangement: rear linkage one near rear side rolling crossbeam left end on platform；In rear adjustable support
Dynamic below the crossbeam platform be equipped with suspension arrangement: rear linkage four；The fixation of mounting base one, rear adjustable support afterwards
Device, rear linkage one, rear linkage four are separately connected two small end flexural pivot mandrels of anti-side rolling torsion rod four, two
Support base.
Double crossbeam lever mechanisms further include axle sleeve, oil fuel tube, M16 fastening bolt, self-lubricating bearing, limited block, M10
Fastening bolt；The rotation axis is mounted on rotating stand by self-lubricating bearing and axle sleeve；It is uniformly distributed on the surface of axle sleeve
There is through-hole, is machined with curved channel in the inner and outer surfaces of axle sleeve, curved channel connects through-hole, through-hole and note among axle sleeve
Oil pipe connection, oil fuel tube upper end tube nozzle, which extends to, sidewinders outside beam surface；Rotation axis end periphery is additionally provided with limited block, limited block
It is fixed on rotating stand by M10 fastening bolt, axle sleeve is fixed on rotating stand by M16 fastening bolt.
The crossbeam that sidewinders is cuboid, sidewinders crossbeam bottom surface and is equipped with T-slot along its length, the mounting base be with
The T-type mounting blocks that T-slot matches, T-type mounting blocks upper end are mounted in T-slot, the left and right two of T-type mounting blocks end portion
Side is equipped with U-shaped hole；The scale being provided on crossbeam for fixed and positioned T-type mounting blocks is sidewindered, is additionally provided on T-type mounting blocks
For fixing the fastening bolt of T-type mounting blocks, when unclamping fastening bolt, T-type mounting blocks can move in T-slot；
The longitudinal section of rotating stand is trapezoidal.
Adjustable bracing bar has four, moves to be equipped with along the longitudinal direction in the middle part of crossbeam and lead to for the strip of fixing device for installing
Before hole, fixed device are mounted at long stripes through hole by bolt, and fixed device can be in long stripes through hole when release bolt
After move.
The augmentor includes side frame, head piece, fixed frame, vertical oil cylinder, column；Side frame and column one are previous
After be mounted on platform, head piece is mounted on side frame and column top by fixed frame；Vertical oil cylinder is connected in head piece
Below portion；The right end of double crossbeam lever mechanisms connects vertical oil cylinder.
The augmentor further includes tail portion bulb, the displacement sensor being mounted on by vertical oil cylinder, is mounted on vertical oil
The load transducer of cylinder lower end；Vertical oil cylinder connects head piece by tail portion bulb.
A kind of anti-side rolling torsion rod fatigue test method, two front and back organized side by side couple are sidewindered crossbeam midpoint and are hinged on
On the same rotating stand, rotating stand is mounted on platform, is sidewindered and is respectively arranged on the platform of the front and back of crossbeam left end
One adjustable support sidewinders crossbeam right end and connects augmentor for applying load；Sidewindered at every crossbeam bottom surface and
An anti-side rolling torsion rod is connected between platform, sidewindering in front connected between crossbeam, adjustable support and platform one it is anti-
Side rolling torsion rod sidewinders one anti-side rolling torsion rod of connection between crossbeam, adjustable support and platform below；By to sidewindering
Crossbeam right end applies load, forms beat and sidewinders load, realizes and carries out fatigue test to more anti-side rolling torsion rods simultaneously, simulation is true
Real operating condition carries out single-point bilateral loading to anti-side rolling torsion rod.
Traditional oscillating bearing is replaced using oil-containing sliding shaft sleeve and self-lubricating bearing, utilizes rotation axis and group pair side by side
Crossbeam is sidewindered to be assembled；It designs a kind of tail portion and front end has the hydraulic cylinder of articulated mounting and applies to the right end for sidewindering crossbeam
Add Tensile or Compressive Loading, once drives two to sidewinder crossbeam using hydraulic cylinder and carry out bilateral loading；By sidewindering crossbeam
Bottom surface is laterally arranged T-slot and installs T-type mounting blocks in T-slot, to meet anti-side rolling torsion rod link assembly upper end flexural pivot core
Axis center is away from longitudinally adjustable demand；It is vertical to realize by mobile T-type mounting blocks and using the scale sidewindered on crossbeam is fixed on
Positioning can be reconciled to mounting distance, to realize the suspension and fixation of a variety of different model anti-side rolling torsion rods, reach promotion fatigue
The purpose of test efficiency.
It is tested using above-mentioned anti-side rolling torsion rod fatigue experimental device；
Sidewindering among crossbeam and both ends processing mounting holes and snugly assembling sleeve, then in axle sleeve press fitting from profit
Plain besring, the inside and outside oil storage tank of self-lubricating bearing and through hole fill lubricating oil, and self-lubricating bearing intermediate throughholes pass through oiling
Pipe is extended down on the outside of crossbeam top surface；Rotation axis is assembled with interference fit type and self-lubricating bearing；Rotating stand is designed to one kind two
Half structure installs two respectively and sidewinders crossbeam, and that assembles rotation axis sidewinders crossbeam from top integral hoisting on rotating stand, benefit
Rotation axis is clamped with rotating stand upper cover plate and bolt and is bolted, while the processing limit of rotation axis left end two sides lacks
Mouthful, limited block is installed on spacing breach and limited block is fixed on by rotating stand two sides by bolt, prevents rotation axis play,
The fastening at rotation axis both ends is realized simultaneously；Flow passage structure is set on axle sleeve: hollow cylinder axle sleeve being processed by brass, in axle sleeve
Uniformly distribution through-hole, while processing curved channel in the inner and outer surfaces of axle sleeve, for connecting through-hole, realize bearing
The self-lubricating and heat dissipation of gross area, while axle sleeve intermediate throughholes are connect with external oil fuel tube, convenient for lubricating oil is replenished in time.
Using the present invention, fatigue test can be carried out, it can be achieved that a variety of different model anti-side to more anti-side rolling torsion rods simultaneously
The suspension and fixation for rolling torsion bar achieve the purpose that promote fatigue test efficiency.Using self-lubricating bearing and flow passage structure, can improve
Double crossbeam lever mechanism fatigue lives realize the self-lubricating and heat dissipation of bearing gross area, while axle sleeve intermediate throughholes and external note
Oil pipe connection, convenient for lubricating oil is replenished in time.Compared to conventional slip bearing, have self-lubricating, thermal diffusivity is good, structure is simple, tired
Labor service life high advantage.
Using the present invention, real working condition can be simulated, single-point bilateral loading, test anti-side rolling are carried out to anti-side rolling torsion rod
Fatigue behaviour of the torsion bar under different operating conditions.By designing a kind of double crossbeam lever mechanisms, two groups of biaxial loadings or four are installed
The anti-side rolling torsion rod unidirectionally loaded is made double by one end application load of the hydraulic cylinder (vertical oil cylinder) to double crossbeam lever mechanisms
Crossbeam lever formation beat, which sidewinders load, tests one or more anti-side rolling torsion rod.This mode structure is simple, reliable
Property and fatigue life it is high, occupy that test resource is small, test efficiency also can be improved, shorten the development cycle.
Detailed description of the invention
Fig. 1 is the anti-side rolling torsion rod fatigue experimental device schematic perspective view in the present invention；
Fig. 2 is the anti-side rolling torsion rod fatigue experimental device left view structural representation in the present invention；
Fig. 3 is anti-side rolling torsion rod fatigue experimental device main view (section view) structural schematic diagram (line A-A along Fig. 2) in the present invention；
Fig. 4 is the anti-side rolling torsion rod fatigue experimental device overlooking structure diagram in the present invention；
Fig. 5 is rotating stand in the present invention and sidewinders beam connecting structure (broken section) stereoscopic schematic diagram；
Fig. 6 is rotating stand in the present invention and sidewinders beam connecting structure main view (section view) schematic diagram；
Fig. 7 is rotating stand in the present invention and sidewinders beam connecting structure left view schematic diagram；
Fig. 8 is rotating stand in the present invention and sidewinders beam connecting structure schematic top plan view；
In figure: sidewindering crossbeam 1-1, rotating stand 1-2, rotation axis 1-3, axle sleeve 1-4, rotation articulated shaft 1-5, mounting base 1-6, hang
Hang device 1-7, oil fuel tube 1-8, M16 fastening bolt 1-9, self-lubricating bearing 1-10, limited block 1-11, M10 fastening bolt 1-12；
Adjustable bracing bar 2-1, dynamic crossbeam 2-2, fixed device 2-3；
Platform 3-1, side frame 3-2, head piece 3-3, fixed frame 3-4, tail portion bulb 3-5, displacement sensor 3-6, vertical oil cylinder
3-7, load transducer 3-8, column 3-9.
Specific embodiment
Please refer to Fig. 1 to Fig. 8, a kind of anti-side rolling torsion rod fluid pressure type single-point bidirectional loading, including platform 3-1,
Be mounted on the augmentor of right part on platform, double crossbeam lever mechanisms for being mounted on platform, be mounted on left part on platform can
Adjust support device.
Double crossbeam lever mechanisms are mainly by sidewindering crossbeam 1-1, rotating stand 1-2, rotation axis 1-3, axle sleeve 1-4, rotating hinge
Spindle 1-5, mounting base 1-6, suspension arrangement 1-7, oil fuel tube 1-8, M16 fastening bolt 1-9, self-lubricating bearing 1-10, limited block
1-11, M10 fastening bolt 1-12 composition.It is that installation anti-side rolling torsion rod is formed simultaneously and sidewinders angle that it, which is acted on,.Suspension arrangement installation
On platform.Rotating stand is trapezoidal support, and longitudinal section is trapezoidal.
Adjustable support mainly by be mounted on platform Adjustable bracing bar 2-1, be mounted on Adjustable bracing bar upper end
Dynamic crossbeam 2-2, the fixation device 2-3 composition being mounted on dynamic crossbeam.It is that suspension different model single-point load test is anti-that it, which is acted on,
Side rolling torsion rod connecting rod.Front and back near double crossbeam lever mechanisms left end is respectively equipped with an adjustable support: respectively
For preceding adjustable support and rear adjustable support.Adjustable bracing bar has four, moves to be equipped with along the longitudinal direction in the middle part of crossbeam and use
In the long stripes through hole of fixing device for installing, fixed device is mounted at long stripes through hole by bolt, and is unclamped solid when bolt
Determining device can be moved forward and backward in long stripes through hole.
Augmentor is mainly by side frame 3-2, head piece 3-3, fixed frame 3-4, tail portion bulb 3-5, displacement sensor 3-
6, vertical oil cylinder 3-7, load transducer 3-8, column 3-9 composition.It, which is acted on, applies load or displacement to lever mechanism, adopts simultaneously
Collect load or racking test data.Side frame and column are one in front and one in back mounted on platform, and head piece is mounted on by fixed frame
Side frame and column top；Vertical oil cylinder is connected in the middle part of head piece below；Vertical oil cylinder connects head piece by tail portion bulb；
Displacement sensor is mounted on by vertical oil cylinder, and load transducer is mounted on vertical oil cylinder lower end.
Anti-side rolling torsion rod includes that torsion bar shaft, torsion arm, two support bases and two link assemblies, link assembly include connecting rod
Upper end flexural pivot mandrel, anti-side rolling torsion rod altogether there are four: anti-side rolling torsion rod one, anti-side rolling torsion rod two, anti-side rolling torsion rod three, anti-side rolling
Torsion bar four (according to test needs, is also possible to one, two or three).
Rotating stand is mounted on medium position above platform, and sidewindering crossbeam has two: positioned at front front side rolling crossbeam and
Crossbeam is rolled positioned at subsequent rear side；Two sidewinder crossbeam front and back and are arranged side by side, and two midpoints for sidewindering crossbeam pass through rotation axis
It is mounted on rotating stand, two right ends for sidewindering crossbeam pass through rotation articulated shaft connection augmentor；Every sidewinders crossbeam
Bottom surface sets that there are three for connecting the mounting base of small end flexural pivot mandrel.
Positioned at front side rolling crossbeam bottom surface three mounting bases from left to right successively are as follows: the preceding installation positioned at rotating stand left
Seat one, the preceding mounting base two positioned at rotating stand left and the preceding mounting base three positioned at rotating stand right, in front side on platform
It rolls the first from left right side in front of crossbeam and is equipped with two suspension arrangements: front-end equipment two and front-end equipment three, preceding mounting base two, preceding peace
Dress seat three, front-end equipment two, front-end equipment three are used to be separately connected two small end flexural pivot cores of anti-side rolling torsion rod one
Axis, two support bases.
Positioned at rear side rolling crossbeam bottom surface three mounting bases from left to right successively are as follows: the rear installation positioned at rotating stand left
Seat one, the rear mounting base two positioned at rotating stand left and the rear mounting base three positioned at rotating stand right, in rear side on platform
It rolls one the first from left right side of crossbeam rear and is equipped with two suspension arrangements: rear linkage two and rear linkage three, rear mounting base two, rear peace
Dress seat three, rear linkage two, rear linkage three are used to be separately connected two small end flexural pivot cores of anti-side rolling torsion rod two
Axis, two support bases.
Lower section is equipped with suspension arrangement: front-end equipment one near the rolling crossbeam left end of front side on platform；In preceding adjustable supports
The platform of the dynamic below the crossbeam of device is equipped with suspension arrangement: front-end equipment four；Preceding mounting base one, preceding adjustable support
Fixed device, front-end equipment one, front-end equipment four be separately connected anti-side rolling torsion rod three two small end flexural pivot mandrels,
Two support bases.
Lower section is equipped with suspension arrangement: rear linkage one near rear side rolling crossbeam left end on platform；In rear adjustable supports
The platform of the dynamic below the crossbeam of device is equipped with suspension arrangement: rear linkage four；Mounting base one, rear adjustable support afterwards
Fixed device, rear linkage one, rear linkage four be separately connected anti-side rolling torsion rod four two small end flexural pivot mandrels,
Two support bases.
Sidewindering crossbeam is cuboid, sidewinders crossbeam bottom surface and is equipped with T-slot along its length, and the mounting base is and T-type
The T-type mounting blocks that slot matches, T-type mounting blocks upper end are mounted in T-slot, and the left and right sides of T-type mounting blocks end portion is equal
Equipped with U-shaped hole；The scale being provided on crossbeam for fixed and positioned T-type mounting blocks is sidewindered, is additionally provided with and is used on T-type mounting blocks
The fastening bolt of fixed T-type mounting blocks, when unclamping fastening bolt, T-type mounting blocks can move in T-slot.
It is a kind of improve lever mechanism fatigue life device (rotating stand of double crossbeam lever mechanisms is connected with crossbeam is sidewindered
Structure), mainly by rotating stand 1-2, rotation axis 1-3, axle sleeve 1-4, sidewinder crossbeam 4, oil fuel tube 1-8, M16 fastening bolt 1-9,
Self-lubricating bearing 1-10, limited block 1-11, M10 fastening bolt 1-12 composition.Rotation axis is installed by self-lubricating bearing and axle sleeve
On rotating stand；It is evenly distributed with through-hole on the surface of axle sleeve, is machined with curved channel, arc in the inner and outer surfaces of axle sleeve
Shape channel connects through-hole, and the through-hole among axle sleeve is connect with oil fuel tube, and oil fuel tube upper end tube nozzle, which extends to, sidewinders outside beam surface；
Rotation axis end periphery is additionally provided with limited block, and limited block is fixed on rotating stand by M10 fastening bolt, and axle sleeve passes through M16
Fastening bolt is fixed on rotating stand.
A kind of anti-side rolling torsion rod fatigue test method include anti-side rolling torsion rod fluid pressure type single-point bilateral loading method and
A method of improving lever mechanism fatigue life.
Anti-side rolling torsion rod fluid pressure type single-point bilateral loading method: crossbeam parallel connection group pair is sidewindered in design two, by front and back
Two of group pair are sidewindered crossbeam midpoint and are hinged on the same rotating stand side by side, and rotating stand is mounted on platform, side
It rolls and an adjustable support is respectively set on the platform of the front and back of crossbeam left end, sidewinder the connection of crossbeam right end for applying
The augmentor of load；One anti-side rolling torsion rod of connection is sidewindered between crossbeam bottom surface and platform at every, in front sidewinder cross
An anti-side rolling torsion rod is connected between beam, adjustable support and platform, below sidewinder crossbeam and adjustable support and
An anti-side rolling torsion rod is connected between platform；By forming beat and sidewindering load, realize same to crossbeam right end application load is sidewindered
When fatigue tests are carried out to more anti-side rolling torsion rods, simulation real working condition carries out single-point bilateral loading to anti-side rolling torsion rod.
Traditional oscillating bearing is replaced using oil-containing sliding shaft sleeve and self-lubricating bearing, utilizes rotation axis and group pair side by side
Crossbeam is sidewindered to be assembled；It designs a kind of tail portion and front end has the hydraulic cylinder (vertical oil cylinder) of articulated mounting to sidewindering cross
The right end of beam applies Tensile or Compressive Loading, while the advantage big using hydraulic cylinder output loads, frequency is high drives two sides come primary
It rolls crossbeam and carries out bilateral loading；By sidewindering crossbeam bottom surface laterally setting T-slot and the installation T-type peace in T-slot
Fill block, come meet anti-side rolling torsion rod link assembly upper end flexural pivot mandrel center away from it is longitudinally adjustable the needs of；Pass through mobile T-type installation
It block and sidewinders scale on crossbeam using being fixed on and realizes that longitudinally mounted distance can reconcile positioning, to realize a variety of different shapeds
The suspension and fixation of number anti-side rolling torsion rod achieve the purpose that promote fatigue test efficiency.
It is tested using above-mentioned anti-side rolling torsion rod fatigue experimental device.
The method for improving lever mechanism fatigue life is: sidewindering among crossbeam with both ends processing mounting holes and with tight fit
Mode assembling sleeve, is then pressed self-lubricating bearing in axle sleeve, and the inside and outside oil storage tank of self-lubricating bearing and through hole fill profit
Lubricating oil, and self-lubricating bearing intermediate throughholes are extended down on the outside of crossbeam top surface by oil fuel tube；Rotation axis is with interference fit type and certainly
Lubricate bearing assembly；Rotating stand is designed to a kind of two halves structure, installs two respectively and sidewinders crossbeam, assembles sidewindering for rotation axis
Crossbeam, on rotating stand, clamps rotation axis using rotating stand upper cover plate and bolt and is consolidated by bolt from top integral hoisting
It is fixed, while rotation axis left end two sides process spacing breach, and limited block is installed on spacing breach and is consolidated limited block by bolt
Due to rotating stand two sides, rotation axis play is prevented, while realizing the fastening at rotation axis both ends；Runner knot is set on axle sleeve
Structure: being processed into hollow cylinder axle sleeve by brass, in the uniformly distribution through-hole of axle sleeve, while in the inner and outer surfaces of axle sleeve
Process curved channel, for connecting through-hole, realize the self-lubricating and heat dissipation of bearing gross area, at the same axle sleeve intermediate throughholes with it is external
Oil fuel tube connection, convenient for lubricating oil is replenished in time.Compared to conventional slip bearing, have self-lubricating, thermal diffusivity is good, structure is simple,
Fatigue life high advantage.
Below by way of compared with the prior art compared with further to main feature of the invention and innovative point work several points explanation:
1, existing anti-side rolling torsion rod experimental technique be mostly single-point is unidirectional, two o'clock is two-way, 33 kinds of three-dimensional.Wherein single-point is unidirectional
Load test refers to one end of fixed anti-side rolling torsion rod, applies its mechanical property of load test to right end by oil cylinder.Two o'clock is double
Refer to load test through two hydraulic cylinders or by way of designing a kind of activation lever by eccentric wheel to anti-side rolling torsion rod into
Row biaxial loadings load, tests its mechanical property.3 three-dimensional load tests refer to through three hydraulic cylinders or design a kind of hang down
To with two sets of machinery loading devices of level, while three directions in vertical both sides to anti-side rolling torsion rod and level apply load, survey
Try its mechanical property.
The present invention provides a kind of fluid pressure type anti-side rolling torsion rod single-point biaxial loadings groups to experimental rig and method.Design one
The double crossbeam lever mechanisms of kind, install two groups of biaxial loadings or four anti-side rolling torsion rods unidirectionally loaded, (vertical by hydraulic cylinder
Oil cylinder) to the right ends of double crossbeam lever mechanisms apply load so that double crossbeam levers is formed beats to sidewinder load anti-to one or more
Side rolling torsion rod is tested.This mode structure is simple, reliability and fatigue life are high, occupies that test resource is small, also can be improved
Test efficiency shortens the development cycle.
2, existing lever mechanism is usually and cooperates in the centre of beat crossbeam and both ends installation roller bearing and mandrel, or adopt
The beat for realizing crossbeam and mandrel is cooperated to move with traditional pin hole.This structure is due to bearing structure, heat dissipation and self-lubricating property
The deficiencies of poor, causes fatigue life to be difficult to meet test requirements document.
The present invention provides a kind of device and methods for improving lever mechanism fatigue life.It is sidewindering among crossbeam and both ends
Then processing mounting holes and snugly assembling sleeve are pressed a kind of novel self-lubricating bearing, self-lubricating in axle sleeve
The inside and outside oil storage tank of bearing and through hole fill lubricating oil, and bearing intermediate throughholes are extended down to by oil fuel tube and sidewinder crossbeam appearance
Face.Rotation axis is assembled in a manner of transition fit with self-lubricating bearing, can be rotated freely, rotating stand is designed to a kind of double half hitch
Structure (half install one sidewinder crossbeam, the other half installation another sidewinder crossbeam), install rotation axis sidewinder crossbeam from turn
Integral hoisting clamps rotation axis using rotating stand upper cover plate and bolt and is consolidated by bolt on rotating stand above dynamic support
It is fixed, while rotation axis left end two sides are machined with spacing breach, limited block is installed on spacing breach and is fixed by bolts in turns
Dynamic support two sides, prevent rotation axis play, while realizing the fastening at rotation axis both ends again.
3, existing sliding bearing is usually not in the solid construction of periphery punching, this structure heat dissipation and self-lubricating
Performance is poor, is prone to wear.
The present invention provides a kind of novel self-lubricating bearings and flow passage structure.Design a kind of sky being process by brass
Heart cartridge sleeve is machined with curved channel in the uniformly distribution through-hole of axle sleeve, while in the inner and outer surfaces of axle sleeve, uses
It connects through-hole, realizes the self-lubricating and heat dissipation of bearing gross area, while intermediate throughholes are connect with external oil fuel tube, are replenished in time
Lubricating oil compared to conventional slip bearing, has the advantages that self-lubricating, thermal diffusivity is good, structure is simple, fatigue life is high.
4, existing that Mechanical Fatigue Test Machine is mostly applied to using lever mechanism load anti-side rolling torsion rod test, due to machine
The load that tool eccentric wheel mechanism is exported is generally all smaller, and single-beam lever mechanism can only be driven to carry out fatigue to anti-side rolling torsion rod
Test, and mechanism rotational articulated device is mostly to cause the deficiencies such as test noise is big, fatigue life is low using oscillating bearing.
The present invention provides a kind of novel double crossbeam lever mechanisms and multi-point suspended experimental rig and method.Design two
Crossbeam parallel connection group pair is sidewindered, is supported by trapezoidal support (rotating stand), is replaced using oil-containing sliding shaft sleeve and self-lubricating bearing
Traditional oscillating bearing is assembled using rotation axis and group to crossbeam is sidewindered, and a kind of novel double crossbeam lever mechanisms are formed.
It designs a kind of tail portion and front end has hinged hydraulic cylinder and applies to the right end for sidewindering crossbeam of double crossbeam lever mechanisms and draws
Compressive load, at the same the advantage big using hydraulic cylinder output loads, frequency is high come once drive two sidewinder crossbeam carry out it is two-way
Load test.This mode tests that noise is low, fatigue life is high.Multi-point suspended experimental rig and method refer in the case where sidewindering crossbeam
End design has for the T-slot for being transversely mounted distance and being adjusted, while being also devised with and sidewindering what crossbeam T-slot matched
T-type mounting blocks, T-type mounting blocks end portion two sides are equipped with U-shaped hole, meet small end flexural pivot mandrel center away from longitudinally adjustable, T
Type mounting blocks upper end is connected and fixed, plus the scale sidewindered on crossbeam is fixed on by T-bolt, nut and T-slot, real together
The existing longitudinally mounted distance of T-type mounting blocks can reconcile positioning, to can realize the suspension of a variety of different model anti-side rolling torsion rods and consolidate
It is fixed, achieve the purpose that promote fatigue test efficiency.
5, the prior art can only once carry out fatigue, and each model anti-side rolling torsion rod to a kind of model anti-side rolling torsion rod
It is both needed to design different test tools.
The present invention provides a kind of novel anti-side rolling torsion rod polytypic mixing groups to fatigue experimental device and method.Design
The independent double crossbeam lever mechanisms of double crossbeam double-T shaped slots are set in one kind, the fixed test platform of underlying multiple spot is above set and sidewinders cross
For beam for fixing anti-side rolling torsion rod left linkages, underlying platform is used to fix the support base of anti-side rolling torsion rod, by logical when test
Different model anti-side rolling torsion rod is subjected to test installation by the position after angle of roll conversion with test tool, utilizes vertical oil cylinder band
The deflection angle that dynamic double crossbeam lever mechanisms generate carries out fatigue test to the anti-side rolling torsion rod of 4 kinds of different models.
6, the single-ended unidirectional load test of prior art anti-side rolling torsion rod is usually used one end torsion arm by traditional
Press strip mode is fixed with test platform, is applied load to another end link and is carried out fatigue test, and this loading method structure is simple,
But the rigidity property of a connecting rod can only be tested, test data inaccuracy.
The present invention provides a kind of novel single-ended fixedly adjustable formula support devices of anti-side rolling torsion rod and method.Design one kind
Vertical height and center is transversely mounted away from adjustable support device, by the direct fixed conversion of original torsion arm at passing through connecting rod
It is hung with adjustable support, the practical entrucking operating condition of simulating vehicle, and this adjustable supporting can meet difference
The suspension requirement of length, different model connecting rod.
7, the present invention provides a kind of novel anti-side rolling torsion rod fluid pressure type closed-loop controls to replace mechanical opened loop control.Mesh
2 kinds of common control modes of preceding automation control area are closed-loop control and opened loop control, closed-loop control: in feedback control respectively
In system, controlled variable is sent into input terminal, is compared with setting value, controls controlled variable according to deviation, whole system is formed
One closed loop.Advantage is controlled by deviation, and deviation is reduced or eliminated, and reaches controlled variable and the consistent mesh of setting value
's.Opened loop control: not needing to measure controlled variable, is only controlled according to input signal, the disadvantage is that due to accident
Controlled variable is measured, is not also compared with setting variable, after system is interfered, controlled variable deviates target value.It is existing
Although mechanical fatigue tester for anti side rolling rod is able to carry out biaxial loadings fatigue test, but he can not to carry out biaxial loadings rigid
Degree test, because he is a kind of experimental rig of opened loop control, this device can only export mechanical displacement, when machanical fastener pine
Dynamic when displacement being made to change, due to not having the feedback of displacement and load, output displacement value can deviate set target value, influence to try
Test data accuracy.More importantly he can not acquire load, displacement data, can not carry out stiffness test.Therefore confrontation is sidewindered
Torsion bar carries out single-point bilateral loading, and it is existing to replace to need to design a kind of fluid pressure type experimental rig with closed loop control function
The mechanical experimental rig having, realize displacement and load test data acquisition, with into complete load, Displacement Feedback value and setting
Value is compared, and forms a closed loop, is carried out single-point biaxial loadings rigidity or fatigue test to anti-side rolling torsion rod, is greatly improved examination
Test data accuracy.
The present invention provides a kind of novel anti-side rolling torsion rod fatigue test technology schemes, carry out single-point to anti-side rolling torsion rod
Fatigue behaviour of the anti-side rolling torsion rod under different operating conditions is tested in biaxial loadings fatigue test.Successful implementation of the invention is filled up
One technical field blank carries out test for anti-side rolling torsion rod and provides test battery device and method.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., is all included in the scope of protection of the present invention.
Claims (10)
1. a kind of anti-side rolling torsion rod fatigue experimental device, including platform and the augmentor for being mounted on right part on platform, feature
Being further includes the double crossbeam lever mechanisms being mounted on platform, the adjustable support for being mounted on left part on platform；Double crossbeam thick sticks
The right end of linkage connects augmentor；Front and back near double crossbeam lever mechanisms left end is respectively equipped with an adjustable supporting
Support arrangement: being respectively preceding adjustable support and rear adjustable support.
2. anti-side rolling torsion rod fatigue experimental device according to claim 1, characterized in that anti-side rolling torsion rod includes torsion bar
Axis, torsion arm, two support bases and two link assemblies, link assembly include small end flexural pivot mandrel, and anti-side rolling torsion rod is total
There are four: anti-side rolling torsion rod one, anti-side rolling torsion rod two, anti-side rolling torsion rod three, anti-side rolling torsion rod four；Double crossbeam lever mechanisms
Including sidewindering crossbeam, rotating stand, rotation axis, rotation articulated shaft, mounting base, the suspension arrangement being mounted on platform；It is described can
Adjust support device include the Adjustable bracing bar being mounted on platform, the dynamic crossbeam for being mounted on Adjustable bracing bar upper end, be mounted on it is dynamic
Fixation device on crossbeam；
Rotating stand is mounted on medium position above platform, and sidewindering crossbeam has two: rolling crossbeam positioned at the front side of front and is located at
Subsequent rear side rolls crossbeam；Two sidewinder crossbeam front and back and are arranged side by side, and two midpoints for sidewindering crossbeam are installed by rotation axis
On rotating stand, two right ends for sidewindering crossbeam pass through rotation articulated shaft connection augmentor；Every sidewinders crossbeam bottom surface
If there are three the mounting bases for connecting small end flexural pivot mandrel；
Positioned at front side rolling crossbeam bottom surface three mounting bases from left to right successively are as follows: the preceding mounting base positioned at rotating stand left
One, the preceding mounting base two positioned at rotating stand left and the preceding mounting base three positioned at rotating stand right are rolled in front side on platform
The first from left right side is equipped with two suspension arrangements: front-end equipment two and front-end equipment three, preceding mounting base two, preceding installation in front of crossbeam
Seat three, front-end equipment two, front-end equipment three be used for be separately connected anti-side rolling torsion rod one two small end flexural pivot mandrels,
Two support bases；
Positioned at rear side rolling crossbeam bottom surface three mounting bases from left to right successively are as follows: the rear mounting base positioned at rotating stand left
One, the rear mounting base two positioned at rotating stand left and the rear mounting base three positioned at rotating stand right are rolled in rear side on platform
One the first from left right side of crossbeam rear is equipped with two suspension arrangements: rear linkage two and rear linkage three, rear mounting base two, rear installation
Seat three, rear linkage two, rear linkage three be used for be separately connected anti-side rolling torsion rod two two small end flexural pivot mandrels,
Two ends of torsion bar shaft；
Lower section is equipped with suspension arrangement: front-end equipment one near the rolling crossbeam left end of front side on platform；In preceding adjustable support
Dynamic below the crossbeam platform be equipped with suspension arrangement: front-end equipment four；The fixation of preceding mounting base one, preceding adjustable support
Device, front-end equipment one, front-end equipment four are separately connected two small end flexural pivot mandrels of anti-side rolling torsion rod three, two
Support base；
Lower section is equipped with suspension arrangement: rear linkage one near rear side rolling crossbeam left end on platform；In rear adjustable support
Dynamic below the crossbeam platform be equipped with suspension arrangement: rear linkage four；The fixation of mounting base one, rear adjustable support afterwards
Device, rear linkage one, rear linkage four are separately connected two small end flexural pivot mandrels of anti-side rolling torsion rod four, two
Support base.
3. anti-side rolling torsion rod fatigue experimental device according to claim 2, characterized in that double crossbeam lever mechanisms are also
Including axle sleeve, oil fuel tube, M16 fastening bolt, self-lubricating bearing, limited block, M10 fastening bolt；The rotation axis passes through from profit
Plain besring and axle sleeve are mounted on rotating stand；It is evenly distributed with through-hole on the surface of axle sleeve, is added in the inner and outer surfaces of axle sleeve
Work has curved channel, and curved channel connects through-hole, and the through-hole among axle sleeve is connect with oil fuel tube, and oil fuel tube upper end tube nozzle extends to
It sidewinders outside beam surface；Rotation axis end periphery is additionally provided with limited block, and limited block is fixed on rotating stand by M10 fastening bolt
On, axle sleeve is fixed on rotating stand by M16 fastening bolt.
4. anti-side rolling torsion rod fatigue experimental device according to claim 2, characterized in that the crossbeam that sidewinders is cuboid
Shape sidewinders crossbeam bottom surface and is equipped with T-slot along its length, and the mounting base is the T-type mounting blocks matched with T-slot, T-type peace
Dress block upper end is mounted in T-slot, is equipped with U-shaped hole at left and right sides of T-type mounting blocks end portion；It sidewinders and is arranged on crossbeam
There is the scale for fixed and positioned T-type mounting blocks, the fastening bolt for fixing T-type mounting blocks be additionally provided on T-type mounting blocks,
When unclamping fastening bolt, T-type mounting blocks can move in T-slot；
The longitudinal section of rotating stand is trapezoidal.
5. anti-side rolling torsion rod fatigue experimental device according to claim 2, characterized in that Adjustable bracing bar has four, moves
The long stripes through hole for fixing device for installing is equipped in the middle part of crossbeam along the longitudinal direction, fixed device is mounted on strip by bolt
Shape through hole, and fixed device can be moved forward and backward in long stripes through hole when release bolt.
6. anti-side rolling torsion rod fatigue experimental device according to claim 1, characterized in that the augmentor includes side machine
Frame, head piece, fixed frame, vertical oil cylinder, column；Side frame and column are one in front and one in back mounted on platform, and head piece passes through solid
Determine frame and is mounted on side frame and column top；Vertical oil cylinder is connected in the middle part of head piece below；The right end of double crossbeam lever mechanisms
Connect vertical oil cylinder.
7. anti-side rolling torsion rod fatigue experimental device according to claim 6, characterized in that the augmentor further includes tail
Portion's bulb, the displacement sensor being mounted on by vertical oil cylinder, the load transducer for being mounted on vertical oil cylinder lower end；Vertical oil cylinder is logical
Cross tail portion bulb connection head piece.
8. a kind of anti-side rolling torsion rod fatigue test method, characterized in that two organized front and back side by side couple sidewinder crossbeam midpoint
It is hinged on the same rotating stand, rotating stand is mounted on platform, sidewinders the platform of the front and back of crossbeam left end
Upper one adjustable support of each setting sidewinders crossbeam right end and connects augmentor for applying load；Cross is sidewindered at every
An anti-side rolling torsion rod is connected between soffit and platform, sidewindering in front connects between crossbeam, adjustable support and platform
An anti-side rolling torsion rod is connect, sidewinders one anti-side rolling torsion rod of connection between crossbeam, adjustable support and platform below；It is logical
It crosses to crossbeam right end application load is sidewindered, forms beat and sidewinder load, realize and fatigue examinations are carried out to more anti-side rolling torsion rods simultaneously
It tests, simulation real working condition carries out single-point bilateral loading to anti-side rolling torsion rod.
9. anti-side rolling torsion rod fatigue test method according to claim 8, characterized in that using oil-containing sliding shaft sleeve and certainly
It lubricates bearing and replaces traditional oscillating bearing, assembled using the crossbeam that sidewinders of rotation axis and group pair side by side；Design a kind of tail
The hydraulic cylinder that portion and front end have articulated mounting applies Tensile or Compressive Loading to the right end for sidewindering crossbeam, primary using hydraulic cylinder
It drives two to sidewinder crossbeam and carries out bilateral loading；By sidewindering crossbeam bottom surface laterally setting T-slot and in T-slot
Install T-type mounting blocks, come meet anti-side rolling torsion rod link assembly upper end flexural pivot mandrel center away from it is longitudinally adjustable the needs of；Pass through shifting
It dynamic T-type mounting blocks and sidewinders scale on crossbeam using being fixed on and realizes that longitudinally mounted distance can reconcile positioning, to realize
The suspension and fixation of a variety of different model anti-side rolling torsion rods achieve the purpose that promote fatigue test efficiency.
10. anti-side rolling torsion rod fatigue test method according to claim 8, characterized in that using described in claim 1
Anti-side rolling torsion rod fatigue experimental device is tested；
Sidewindering among crossbeam and both ends processing mounting holes and snugly assembling sleeve, then in axle sleeve press fitting from profit
Plain besring, the inside and outside oil storage tank of self-lubricating bearing and through hole fill lubricating oil, and self-lubricating bearing intermediate throughholes pass through oiling
Pipe is extended down on the outside of crossbeam top surface；Rotation axis is assembled with interference fit type and self-lubricating bearing；Rotating stand is designed to one kind two
Half structure installs two respectively and sidewinders crossbeam, and that assembles rotation axis sidewinders crossbeam from top integral hoisting on rotating stand, benefit
Rotation axis is clamped with rotating stand upper cover plate and bolt and is bolted, while the processing limit of rotation axis left end two sides lacks
Mouthful, limited block is installed on spacing breach and limited block is fixed on by rotating stand two sides by bolt, prevents rotation axis play,
The fastening at rotation axis both ends is realized simultaneously；Flow passage structure is set on axle sleeve: hollow cylinder axle sleeve being processed by brass, in axle sleeve
Uniformly distribution through-hole, while processing curved channel in the inner and outer surfaces of axle sleeve, for connecting through-hole, realize bearing
The self-lubricating and heat dissipation of gross area, while axle sleeve intermediate throughholes are connect with external oil fuel tube, convenient for lubricating oil is replenished in time.
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| CN201811171421.5A CN109297694B (en) | 2018-10-09 | 2018-10-09 | Anti-side-rolling torsion bar fatigue test device and method |
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| CN110044738A (en) * | 2019-04-11 | 2019-07-23 | 河海大学 | The fatigue experimental device and its application method that weld seam Multiaxial stress controllably applies |
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