CN105334042B - A kind of electro-hydraulic servo turns to ball pivot fatigue tester - Google Patents
A kind of electro-hydraulic servo turns to ball pivot fatigue tester Download PDFInfo
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- CN105334042B CN105334042B CN201510894496.6A CN201510894496A CN105334042B CN 105334042 B CN105334042 B CN 105334042B CN 201510894496 A CN201510894496 A CN 201510894496A CN 105334042 B CN105334042 B CN 105334042B
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- 230000007246 mechanism Effects 0.000 claims abstract description 86
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 52
- 229910052742 iron Inorganic materials 0.000 claims abstract description 26
- 238000011068 loading method Methods 0.000 claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 19
- 239000010959 steel Substances 0.000 claims description 19
- 230000008450 motivation Effects 0.000 claims 1
- 230000002452 interceptive effect Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 238000001228 spectrum Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 9
- 238000009661 fatigue test Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
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Abstract
The present invention relates to material and component performance experiment field, more particularly to a kind of electro-hydraulic servo turns to ball pivot fatigue tester.It includes iron bottom plate, flexible support post of the iron bottom plate provided with four square arrangements, the upper end of flexible support post connects two swing mechanisms and two rotating mechanisms, longitudinal load maintainer is additionally provided with iron bottom plate, the upper end of longitudinal load maintainer is connected with two swing mechanisms and iron bottom plate respectively, Plumb load mechanism is additionally provided with iron bottom plate, the upper end of the Plumb load mechanism is connected with rotating mechanism, and horizontal load maintainer is additionally provided between two swing mechanisms.The present invention can simulate the actual condition for turning to ball pivot completely, rotation, swing suffered by steering ball pivot, longitudinal, vertical and cross force can apply simultaneously, also can input load spectrum coordinate control, and using the scheme that four samples are arranged on square four angles, the problem of four samples are simultaneously by five direction loadings without interfering with each other is realized well.
Description
（One）Technical field
The present invention relates to material and component performance experiment field, more particularly to a kind of electro-hydraulic servo turns to ball pivot fatigue test
Machine.
（Two）Background technology
Steering linkage is for connection to vehicle front knuckle and tooth sector, when steering wheel is rotated, can make front-wheel by one
While being flapped toward another side.Steering linkage is divided into steering drag link and track rod.Track rod is the one of vehicle steering trapezoid
Part, plays the intermal force of steering.Steering drag link is a bar of steering wheel torque arm and the connection of knuckle left arm, direction
Mechanomotive force, which is transmitted to after knuckle, can just control wheel.
Ball-joint assembly is the critical component of steering linkage, and fatigue damage is the main damage forms of the part.
General electo hydraulic servocontrolled fatigue testing machine can only simulate the stressing conditions of one direction of steering linkage or both direction,
The country once had a go at the testing machine of three passage loadings, but axially loaded has some problems, and unsatisfactory.Due to
Steering linkage stress is complicated, to bear to swing, rotate, power axially and radially, simulates completely relatively difficult, and the country is without can be complete
The electo hydraulic servocontrolled fatigue testing machine of full simulation actual condition.Domestic steering linkage manufacturer and research and development institution, take each substantially
The scheme that individual direction stress is separately simulated, can so cause during experiment and actual condition has relatively large deviation, cause test data not
Accurately.
（Three）The content of the invention
The present invention simulates ball pivot actual condition to make up the defect of prior art there is provided one kind, can apply pendulum simultaneously
Dynamic, rotation, axial force and radial load, the electro-hydraulic servo of simulation actual condition completely turn to ball pivot fatigue tester.
The present invention is achieved through the following technical solutions：
A kind of electro-hydraulic servo turns to ball pivot fatigue tester, it is characterized in that, including iron bottom plate, the iron bottom plate is provided with four
The flexible support post of the square arrangement of root, the upper end of the flexible support post connects two swing mechanisms and two rotating machines
Structure, two swing mechanisms and two rotating mechanisms are arranged at intervals and constitute a square, and longitudinal direction is additionally provided with iron bottom plate and is added
Mounted mechanism, the upper end of longitudinal load maintainer is connected with two swing mechanisms respectively, and longitudinal load maintainer passes through two
Framework is connected with iron bottom plate, and Plumb load mechanism, the upper end of the Plumb load mechanism and rotating machine are additionally provided with iron bottom plate
Structure is connected, and horizontal load maintainer is additionally provided between two swing mechanisms, and the flexible support post includes being fixed on iron bottom plate
Support set, support set upper side is fixedly connected in spring, spring and is cased with spring guide pillar, and the spring guide pillar upper end is fixed with spring
Connection, lower end is located in support set.
The swing mechanism is identical with rotating mechanism structure, all includes the oscillating cylinder of a double shafts, the oscillating cylinder one
The output shaft at end is passed through and a fixture is connected after bearing block, and another axle is passed through after the output shaft connection torque sensor of the other end
Connected after bearing and angular transducer is additionally provided with another fixture, and the output shaft of the other end, wherein swing mechanism two ends are set
There is U-shaped swinging block, junction steel plate, the wherein connection below rotating mechanism are designed with the upper and lower of swing mechanism and rotating mechanism
Steel plate is fixedly connected with spring.
Longitudinal load maintainer includes longitudinal linear actuator of double rods, and first bearing seat is installed with framework,
The support that the first bearing seat connection energy axle turns, pedestal upper end is fixedly connected with the junction steel plate below swing mechanism, support
Lower end is provided with hinged seat, and the hinged seat and the piston rod at longitudinal linear actuator two ends are hinged.
The Plumb load mechanism includes the horizontal lever being fixed on iron bottom plate, and described horizontal lever one end is hinged with vertical
To linear actuator, the upper end of the vertical linear actuator is fixedly connected with the junction steel plate below a rotating mechanism, institute
The other end for stating horizontal lever is hinged a loading frame, the upper end of the loading frame and another rotating mechanism lower section above it
Junction steel plate be fixedly connected.
The horizontal load maintainer includes horizontal linear actuator, and the horizontal linear actuator two ends are respectively by U-shaped
Connecting seat is fixedly connected with the junction steel plate of swing mechanism upper and lower.
The beneficial effects of the invention are as follows：
1st, the present invention can simulate the actual condition for turning to ball pivot completely.
2nd, suffered by steering ball pivot rotation, swing, longitudinal, vertical and cross force can apply simultaneously, also can input load spectrum
Coordinate control.
3rd, using the scheme that four samples are arranged on square four angles, four samples are realized well simultaneously by five
The problem of direction loading is without interfering with each other.
（Four）Brief description of the drawings
The present invention is further illustrated below in conjunction with the accompanying drawings：
Fig. 1 is main structure diagram of the invention；
Fig. 2 is overlooking the structure diagram of the invention；
Fig. 3 is right side structural representation of the invention；
Fig. 4 is the main structure diagram of flexible support post；
Fig. 5 is the right side structural representation of flexible support post；
Fig. 6 is the main structure diagram of swing mechanism and rotating mechanism；
Fig. 7 is the overlooking the structure diagram of swing mechanism and rotating mechanism annexation；
Fig. 8 is horizontal loading device and the main structure diagram of swing mechanism annexation；
Fig. 9 is horizontal loading device and the overlooking the structure diagram of swing mechanism annexation；
Figure 10 is longitudinal load maintainer and the main structure diagram of swing mechanism annexation；
Figure 11 is Figure 10 left view structural representation；
Figure 12 is the main structure diagram of Plumb load mechanism and rotating mechanism annexation
Figure 13 is sample（Turn to ball pivot）Structural representation.
In figure, 1 iron bottom plate, 2 support sets, 3 springs, 4 spring guide pillars, 5 oscillating cylinders, 6 bearing blocks, 7 fixtures, 8 torque sensings
Device, 9 angular transducers, 10 U-shaped swinging blocks, 11 housings, 12 steering balls, 13 junction steel plates, 14 frameworks, 15 first bearing seats, 16
Support, 17 hinged seats, 18 longitudinal linear actuators, 19 piston rods, 20 horizontal levers, 21 vertical linear actuators, 22 loading frames,
23 horizontal linear actuators, 24 U connecting seats, 100 swing mechanisms, 200 rotating mechanisms, 300 horizontal load maintainers, 400 longitudinal directions
Load maintainer, 500 Plumb load mechanisms, 600 turn to ball pivot.
（Five）Embodiment
Accompanying drawing is specific embodiment of the invention.As shown in figure 1 to figure 13, this kind of electro-hydraulic servo turns to ball pivot fatigue test
Machine, by Electronic-hydraulic Servo Controller control, it includes iron bottom plate 1, flexible support of the iron bottom plate 1 provided with four square arrangements
Post, as shown in Figure 4, Figure 5, flexible support post include the support set 2 being fixed on iron bottom plate 1, and support set 2 is hollow structure, branch
The upper end of support set 2, which is fixedly connected in spring 3, spring 3, is cased with spring guide pillar 4, and the upper end of spring guide pillar 4 and the upper end of spring 3 are fixed
Connection, the lower end of spring guide pillar 4 is located in support set 2, and when spring 3 is compressed, the lower end of spring guide pillar 4 is in support set 2
Move down；The upper end of four springs 3 connects two swing mechanisms 100 and two rotating mechanisms 200, two swing mechanisms 100
It is arranged at intervals with two rotating mechanisms 200 and constitutes a square, a pair of the parallel composition square of two swing mechanisms 100
Parallel edges, another pair parallel edges of the parallel composition square of two rotating mechanisms 200, swing mechanism 100 and the knot of rotating mechanism 200
Structure is identical：As shown in Figure 5, Figure 6, the oscillating cylinder 5 of a double shafts is all included, the output shaft of the one end of oscillating cylinder 5 passes through bearing block 6
Connect afterwards and connect another after passing through another bearing block 6 after a fixture 7, the output shaft connection torque sensor 8 of the other end
Fixture 7, and angular transducer 9 is also equipped with the output shaft of the other end, angular transducer 9 is used to measure what is rotated and swing
The outer end of fixture 7 of angle, the wherein two ends of swing mechanism 100 connects U-shaped swinging block 10, and U-shaped swinging block 10 is used for turning to ball pivot
600 housing 11 is connected, and U-shaped swinging block 10 and housing 11 are bolted and fixture 7 is all prior art, herein no longer
Repeat, the fixture 7 on rotating mechanism 200 is used to connect the steering ball 12 for turning to ball pivot 600, and drives steering ball 12 to rotate,
The upper and lower of swing mechanism 100 and rotating mechanism 200 is all fixed with the connection of junction steel plate 13, the wherein lower section of rotating mechanism 200
Steel plate 13 is fixedly connected with spring 3, and swing mechanism 100 is then supported by longitudinal load maintainer 400：As shown in Figure 8, Figure 9, in iron
Two frameworks 14 are installed, framework 14 is located at the lower section of swing mechanism 100, one framework in a lower section of swing mechanism 100 on bottom plate 1
14, first bearing seat 6 is fixedly mounted in the top of each framework 14, and a support 16 is arranged in first bearing seat 6, and support 16 can
Axle turns, and the top of support 16 is fixedly connected with the junction steel plate 13 of the lower section of swing mechanism 100, and the lower end of support 16 is hinged seat
17, longitudinal linear actuator 18 of a double rods, the piston rod of longitudinal linear actuator 18 are hinged between two hinged seats 17
19 are hinged with hinged seat 17；Plumb load mechanism 500 is also equipped with iron bottom plate 1, as shown in figure 12, Plumb load mechanism
The 500 horizontal levers 20 including being fixed on iron bottom plate 1, horizontal lever 20 is vertical with longitudinal linear actuator 18, in horizontal thick stick
The one end of bar 20 is hinged vertical linear actuator 21, the company of the upper end of vertical linear actuator 21 and a lower section of rotating mechanism 200
Connect steel plate 13 to be fixedly connected, the other end of horizontal lever 20 is hinged a loading frame 22, the upper end of loading frame 22 with above it
The junction steel plate 13 of another lower section of rotating mechanism 200 is fixedly connected, and the action of vertical linear actuator 21 passes through horizontal lever
20 pass to another side, realize the Plumb load of two sets of rotating mechanisms 200；Linear actuator 18 is vertical sets with longitudinal direction for horizontal lever 20
Put, longitudinal linear actuator 18 is located at the horizontal top of lever 20；
Provided with horizontal load maintainer 300, as shown in Figure 8, Figure 9, horizontal load maintainer between two swing mechanisms 100
300 include horizontal linear actuator 23, and the two ends of horizontal linear actuator 23 pass through U-shaped connecting seat 24 and swing mechanism respectively
The junction steel plate 13 of 100 upper and lowers is fixedly connected.
In whole system, swing mechanism 100, rotating mechanism 200, horizontal load maintainer 300, longitudinal load maintainer are had
400 and 500 5 kinds of loading systems of Plumb load mechanism, can be to installed in swing under the coordination control of Electronic-hydraulic Servo Controller
Steering ball pivot 600 on four angles between mechanism 100 and rotating mechanism 200 apply swing, rotate, it is vertical, horizontal and vertical
The power in five directions, simulates the actual loading situation for turning to ball pivot 600 well, and four samples are tested simultaneously, significantly
Improve conventional efficient.
In addition to technical characteristic described in specification, remaining technical characteristic is technology known to those skilled in the art.
Claims (5)
1. a kind of electro-hydraulic servo turns to ball pivot fatigue tester, it is characterized in that, including iron bottom plate（1）, the iron bottom plate（1）On set
There is the flexible support post of four square arrangements, the upper end of the flexible support post connects two swing mechanisms（100）With two
Individual rotating mechanism（200）, two swing mechanisms（100）With two rotating mechanisms（200）It is arranged at intervals and constitutes a square,
In iron bottom plate（1）On be additionally provided with longitudinal load maintainer（400）, longitudinal load maintainer（400）Upper end respectively with two pendulum
Motivation structure（100）Connection, longitudinal load maintainer（400）Pass through two frameworks（14）With iron bottom plate（1）Connection, in iron bottom plate
（1）On be additionally provided with Plumb load mechanism（500）, the Plumb load mechanism（500）Upper end and rotating mechanism（200）Connection,
In two swing mechanisms（100）Between be additionally provided with horizontal load maintainer（300）, the flexible support post is including being fixed on iron bottom plate
（1）On support set（2）, support set（2）Upper end is fixedly connected with spring（3）, spring（3）Inside it is cased with spring guide pillar（4）, the bullet
Spring guide pillar（4）Upper end and spring（3）It is fixedly connected, lower end is located at support set（2）It is interior.
2. electro-hydraulic servo according to claim 1 turns to ball pivot fatigue tester, it is characterized in that, the swing mechanism
（100）And rotating mechanism（200）Structure is identical, all includes the oscillating cylinder of a double shafts（5）, the oscillating cylinder（5）One end
Output shaft passes through bearing block（6）A fixture is connected afterwards（7）, the output shaft connection torque sensor of the other end（8）Afterwards through another
One bearing block（6）After connect another fixture（7）, and angular transducer is additionally provided with the output shaft of the other end（9）, wherein
Swing mechanism（100）Two ends are provided with U-shaped swinging block（10）, in swing mechanism（100）And rotating mechanism（200）Upper and lower all set
There is junction steel plate（13）, wherein rotating mechanism（200）The junction steel plate of lower section（13）With spring（3）It is fixedly connected.
3. electro-hydraulic servo according to claim 2 turns to ball pivot fatigue tester, it is characterized in that, longitudinal load maintainer
（400）Longitudinal linear actuator including double rods（18）, in framework（14）On be installed with first bearing seat（15）, described first
Bearing block（15）The support that connection energy axle turns（16）, support（16）Upper end and swing mechanism（100）The junction steel plate of lower section（13）
It is fixedly connected, support（16）Lower end is provided with hinged seat（17）, the hinged seat（17）With longitudinal linear actuator（18）Two ends
Piston rod（19）It is hinged.
4. electro-hydraulic servo according to claim 2 turns to ball pivot fatigue tester, it is characterized in that, the Plumb load mechanism
（500）Including being fixed on iron bottom plate（1）On horizontal lever（20）, the horizontal lever（20）One end is hinged with vertical straight line and made
Dynamic device（21）, the vertical linear actuator（21）Upper end and rotating mechanism（200）The junction steel plate of lower section（13）Gu
Fixed connection, the horizontal lever（20）The other end be hinged a loading frame（22）, the loading frame（22）Upper end with thereon
Another rotating mechanism of side（200）The junction steel plate of lower section（13）It is fixedly connected.
5. electro-hydraulic servo according to claim 2 turns to ball pivot fatigue tester, it is characterized in that, the horizontal load maintainer
（300）Including horizontal linear actuator（23）, the horizontal linear actuator（23）Two ends are respectively by U-shaped connecting seat with swinging
Mechanism（100）The junction steel plate of upper and lower（13）It is fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510894496.6A CN105334042B (en) | 2015-12-08 | 2015-12-08 | A kind of electro-hydraulic servo turns to ball pivot fatigue tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510894496.6A CN105334042B (en) | 2015-12-08 | 2015-12-08 | A kind of electro-hydraulic servo turns to ball pivot fatigue tester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105334042A CN105334042A (en) | 2016-02-17 |
| CN105334042B true CN105334042B (en) | 2017-09-29 |
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| CN201510894496.6A Expired - Fee Related CN105334042B (en) | 2015-12-08 | 2015-12-08 | A kind of electro-hydraulic servo turns to ball pivot fatigue tester |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106525588B (en) * | 2016-12-01 | 2023-06-23 | 华侨大学 | Multi-deformation-mode self-adaptive extensometer |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITMI20061000A1 (en) * | 2006-05-22 | 2007-11-23 | Milano Politecnico | ELASTIC COUPLING WITH SPHERICAL HINGE TRANSLATOR AND SENSOR OF FORCES AND MOMENTS PERFECTED WITH THIS JOINT |
| CN201222001Y (en) * | 2008-06-20 | 2009-04-15 | 浙江豪情汽车制造有限公司 | Durability test apparatus for automobile spherical hinge component |
| CN202149843U (en) * | 2011-07-27 | 2012-02-22 | 株洲时代新材料科技股份有限公司 | Rubber spherical hinge loading fatigue test device |
| CN202204665U (en) * | 2011-07-29 | 2012-04-25 | 中国第一汽车股份有限公司 | Endurance test device for suspension spherical hinge assembly |
| CN102735534B (en) * | 2012-07-07 | 2014-01-15 | 长春机械科学研究院有限公司 | Three-dimensional alternating load fatigue test device for rubber and plastic joint assembly |
| CN104697758B (en) * | 2013-12-04 | 2017-05-31 | 广州汽车集团股份有限公司 | Two power rod member test-beds |
| CN104374565B (en) * | 2014-11-28 | 2017-03-08 | 济南瑞晟机械有限公司 | A kind of electo hydraulic servocontrolled fatigue testing machine |
| CN205280336U (en) * | 2015-12-08 | 2016-06-01 | 济南瑞晟机械有限公司 | Servo ball pivot fatigue testing machine that turns to of electricity liquid |
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