CN105334042A - Electro-hydraulic servo fatigue testing machine for steering spherical hinge - Google Patents
Electro-hydraulic servo fatigue testing machine for steering spherical hinge Download PDFInfo
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- CN105334042A CN105334042A CN201510894496.6A CN201510894496A CN105334042A CN 105334042 A CN105334042 A CN 105334042A CN 201510894496 A CN201510894496 A CN 201510894496A CN 105334042 A CN105334042 A CN 105334042A
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- 238000009661 fatigue test Methods 0.000 title abstract description 6
- 230000007246 mechanism Effects 0.000 claims abstract description 91
- 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
- 229910000831 Steel Inorganic materials 0.000 claims description 19
- 239000010959 steel Substances 0.000 claims description 19
- 238000012360 testing method Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 2
- 238000001228 spectrum Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 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 2
- 238000004088 simulation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to the field of material and part performance testing, in particular to an electro-hydraulic servo fatigue testing machine for a steering spherical hinge. The electro-hydraulic servo fatigue testing machine comprises an iron base plate. Four flexible supporting columns arranged in a square mode are arranged on the iron base plate. Two swinging mechanisms and two rotating mechanisms are connected with the upper ends of the flexible supporting columns. A longitudinal loading mechanism is further arranged on the iron base plate. The upper end of the longitudinal loading mechanism is connected with the two swinging mechanisms and the iron base plate. A vertical loading mechanism is further arranged on the iron base plate, the upper end of the vertical loading mechanism is connected with the rotating mechanisms, and a transverse loading mechanism is further arranged between the two swinging mechanisms. By means of the electro-hydraulic servo fatigue testing machine, practical working conditions of the steering spherical hinge can be completely simulated, the rotating force, the swinging force, the longitudinal force, the vertical force and the transverse force borne by the steering spherical hinge can be applied at the same time, and a load spectrum can also be input for coordination control; in addition, the scheme that four samples are distributed at the four angles of a square is adopted, and the aim that the four samples simultaneously bear loads in five directions without interference is well achieved.
Description
(1) technical field
The present invention relates to material and component performance test field, particularly a kind of electro-hydraulic servo turns to ball pivot fatigue tester.
(2) background technology
Steering linkage is used to connect vehicle front steering knuckle and tooth sector, during rotating of steering wheel, front-wheel can be made by being flapped toward another side.Steering linkage is divided into steering drag link and track rod.Track rod is a part for vehicle steering trapezoid, plays the intermal force turned to.Steering drag link is the bar that steering wheel torque arm is connected with steering knuckle left arm, just can control wheel after steering wheel power is passed to steering knuckle.
Ball-joint assembly is the critical component of steering linkage, and fatigue breakdown is the main damage forms of these parts.
General electo hydraulic servocontrolled fatigue testing machine can only simulate the stressing conditions of steering linkage direction or both direction, the domestic testing machine once having a go at three passages and load, but axially loaded exists some problems, and unsatisfactory.Due to the stressed complexity of steering linkage, bear swing, rotation, axial and radial power, simulate more difficult completely, domestic do not have the electo hydraulic servocontrolled fatigue testing machine simulating actual condition completely.Domestic steering linkage manufacturer and research and development institution, take the scheme of the stressed separately simulation of all directions substantially, when can cause test like this and actual condition have relatively large deviation, cause test figure inaccurate.
(3) summary of the invention
The present invention is in order to make up the defect of prior art, and provide a kind of simulation ball pivot actual condition, can apply swing, rotation, axial force and radial force, the electro-hydraulic servo of simulating actual condition completely turns to ball pivot fatigue tester simultaneously.
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, comprise iron bottom plate, described iron bottom plate is provided with four flexible support posts in arranged in squares, the upper end of described flexible support post connects two tilting mechanisms and two rotating mechanisms, two tilting mechanisms and two rotating mechanism intervals arrange and form a square, iron bottom plate is also provided with longitudinal load maintainer, the upper end of described longitudinal load maintainer is connected with two tilting mechanisms respectively, described longitudinal load maintainer is connected with iron bottom plate by two frameworks, iron bottom plate is also provided with Plumb load mechanism, the upper end of described Plumb load mechanism is connected with rotating mechanism, horizontal load maintainer is also provided with between two tilting mechanisms, described soft supporting post comprises the support set be fixed on iron bottom plate, support set upper end is fixedly connected with spring, spring inner sleeve has spring guide pillar, described spring guide pillar upper end is fixedly connected with spring, lower end is positioned at support set.
Described tilting mechanism is identical with rotating mechanism structure, all comprise the oscillating cylinder of a two shaft, the output shaft of described oscillating cylinder one end connects a fixture through after bearing seat, another fixture is connected through after another bearing seat after the output shaft connection torque sensor of the other end, and the output shaft of the other end is also provided with angular transducer, wherein tilting mechanism two ends are provided with U-shaped swinging block, all be provided with junction steel plate at the upper and lower of tilting mechanism and rotating mechanism, the junction steel plate wherein below rotating mechanism is fixedly connected with spring.
Described longitudinal load maintainer comprises longitudinal linear actuator of two rod, framework is installed with clutch shaft bearing seat, described clutch shaft bearing seat connects the support that energy axle turns, pedestal upper end is fixedly connected with the junction steel plate below tilting mechanism, pedestal lower end is provided with hinged seat, and the piston rod at described hinged seat and longitudinal linear actuator two ends is hinged.
Described Plumb load mechanism comprises the horizontal lever be fixed on iron bottom plate, described horizontal lever one end is hinged with vertical linear actuator, the upper end of described vertical linear actuator is fixedly connected with the junction steel plate below a rotating mechanism, the hinged loading frame of the other end of described horizontal lever, the upper end of described loading frame is fixedly connected with the junction steel plate below another rotating mechanism above it.
Described horizontal load maintainer comprises horizontal linear actuator, and described horizontal linear actuator two ends are fixedly connected with respectively by the junction steel plate of U-shaped Connection Block with tilting mechanism upper and lower.
The invention has the beneficial effects as follows:
1, the present invention can simulate the actual condition turning to ball pivot completely.
2, turn to the rotation suffered by ball pivot, swing, longitudinal, vertical and transverse force to apply simultaneously, also can input load spectrum cooperation control.
3, adopt the scheme of square four angles being arranged four samples, well achieve the problem that four samples do not interfere with each other by five directions load simultaneously.
(4) accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated:
Fig. 1 is main TV structure schematic diagram of the present invention;
Fig. 2 is plan structure schematic diagram of the present invention;
Fig. 3 is right TV structure schematic diagram of the present invention;
Fig. 4 is the main TV structure schematic diagram of flexible support post;
Fig. 5 is the right TV structure schematic diagram of flexible support post;
Fig. 6 is the main TV structure schematic diagram of tilting mechanism and rotating mechanism;
Fig. 7 is the plan structure schematic diagram of tilting mechanism and rotating mechanism annexation;
Fig. 8 is the main TV structure schematic diagram of horizontal charger and tilting mechanism annexation;
Fig. 9 is the plan structure schematic diagram of horizontal charger and tilting mechanism annexation;
Figure 10 is the main TV structure schematic diagram of longitudinal load maintainer and tilting mechanism annexation;
Figure 11 is the left TV structure schematic diagram of Figure 10;
Figure 12 is the main TV structure schematic diagram of Plumb load mechanism and rotating mechanism annexation
Figure 13 is the structural representation of sample (turning to ball pivot).
In figure, 1 iron bottom plate, 2 support sets, 3 springs, 4 spring guide pillars, 5 oscillating cylinders, 6 bearing seats, 7 fixtures, 8 torque sensors, 9 angular transducers, 10U type swinging block, 11 housings, 12 steering balls, 13 junction steel plates, 14 frameworks, 15 clutch shaft bearing seats, 16 supports, 17 hinged seats, 18 longitudinal linear actuators, 19 piston rods, 20 horizontal levers, 21 vertical linear actuators, 22 loading frames, 23 horizontal linear actuators, 24U Connection Block, 100 tilting mechanisms, 200 rotating mechanisms, 300 horizontal load maintainers, 400 longitudinal load maintainers, 500 Plumb load mechanisms, 600 turn to ball pivot.
(5) embodiment
Accompanying drawing is specific embodiments of the invention.As shown in figure 1 to figure 13, this kind of electro-hydraulic servo turns to ball pivot fatigue tester, controlled by Electronic-hydraulic Servo Controller, it comprises iron bottom plate 1, iron bottom plate 1 is provided with four flexible support posts in arranged in squares, as Fig. 4, shown in Fig. 5, soft supporting post comprises the support set 2 be fixed on iron bottom plate 1, support set 2 is hollow structure, the upper end of support set 2 is fixedly connected with spring 3, spring 3 inner sleeve has spring guide pillar 4, spring guide pillar 4 upper end is fixedly connected with the upper end of spring 3, the lower end of spring guide pillar 4 is positioned at support set 2, when spring 3 is by compression, the lower end of spring guide pillar 4 moves down in support set 2, the upper end of four springs 3 connects two tilting mechanisms 100 and two rotating mechanisms 200, two tilting mechanisms 100 and two rotating mechanism 200 intervals arrange and form a square, two foursquare pair of parallel limits of the parallel composition of tilting mechanism 100, two parallel compositions of rotating mechanism 200 foursquare another to parallel edges, tilting mechanism 100 is identical with rotating mechanism 200 structure: as Fig. 5, shown in Fig. 6, all comprise the oscillating cylinder 5 of a two shaft, the output shaft of oscillating cylinder 5 one end connects a fixture 7 through after bearing seat 6, another fixture 7 is connected through after another bearing seat 6 after the output shaft connection torque sensor 8 of the other end, and the output shaft of the other end is also provided with angular transducer 9, angular transducer 9 is for measuring the angle of rotating and swinging, wherein fixture 7 outer end at tilting mechanism 100 two ends connects U-shaped swinging block 10, U-shaped swinging block 10 is for being connected with turning to the housing 11 of ball pivot 600, U-shaped swinging block 10 is bolted with housing 11 and fixture 7 is all prior art, do not repeat them here, fixture 7 on rotating mechanism 200 is for connecting the steering ball 12 turning to ball pivot 600, and drive steering ball 12 to rotate, junction steel plate 13 is all fixed with at the upper and lower of tilting mechanism 100 and rotating mechanism 200, junction steel plate 13 wherein below rotating mechanism 200 is fixedly connected with spring 3, tilting mechanism 100 then supports by longitudinal load maintainer 400: as Fig. 8, shown in Fig. 9, iron bottom plate 1 installs two frameworks 14, framework 14 is positioned at below tilting mechanism 100, a framework 14 below a tilting mechanism 100, the top fixed installation clutch shaft bearing seat 6 of each framework 14, a support 16 is arranged on clutch shaft bearing seat 6, support 16 is axle turnable, the top of support 16 is fixedly connected with the junction steel plate 13 below tilting mechanism 100, the lower end of support 16 is hinged seat 17, longitudinal linear actuator 18 of a hinged two rod between two hinged seats 17, the piston rod 19 of longitudinal linear actuator 18 is hinged with hinged seat 17, iron bottom plate 1 is also provided with Plumb load mechanism 500, as shown in figure 12, Plumb load mechanism 500 comprises the horizontal lever 20 be fixed on iron bottom plate 1, horizontal lever 20 is vertical with longitudinal linear actuator 18, at the hinged vertical linear actuator 21 in horizontal lever 20 one end, the upper end of vertical linear actuator 21 is fixedly connected with the junction steel plate 13 below a rotating mechanism 200, the hinged loading frame 22 of the other end of horizontal lever 20, the upper end of loading frame 22 is fixedly connected with the junction steel plate 13 below another rotating mechanism 200 above it, the action of vertical linear actuator 21 passes to another side by horizontal lever 20, realize the Plumb load of two cover rotating mechanisms 200, horizontal lever 20 is vertical with longitudinal linear actuator 18 arranges, and longitudinal linear actuator 18 is positioned at above horizontal lever 20,
Horizontal load maintainer 300 is provided with between two tilting mechanisms 100, as shown in Figure 8, Figure 9, horizontal load maintainer 300 comprises horizontal linear actuator 23, and the two ends of horizontal linear actuator 23 are fixedly connected with respectively by the junction steel plate 13 of U-shaped Connection Block 24 with tilting mechanism 100 upper and lower.
In whole system, total tilting mechanism 100, rotating mechanism 200, horizontal load maintainer 300, longitudinal load maintainer 400 and Plumb load mechanism 500 5 kinds of loading systems, under the cooperation control of Electronic-hydraulic Servo Controller, the power in swing, rotation, vertical, horizontal and vertical five directions can be applied to the ball pivot 600 that turns on four angles be arranged between tilting mechanism 100 and rotating mechanism 200, simulate the actual loading situation turning to ball pivot 600 well, and four samples are tested, and substantially increase conventional efficient simultaneously.
Except technical characteristic described in instructions, all the other technical characteristics are those skilled in the art's known technology.
Claims (5)
1. an electro-hydraulic servo turns to ball pivot fatigue tester, it is characterized in that, comprise iron bottom plate (1), described iron bottom plate (1) is provided with four flexible support posts in arranged in squares, the upper end of described flexible support post connects two tilting mechanisms (100) and two rotating mechanisms (200), two tilting mechanisms (100) and two rotating mechanism (200) intervals arrange and form a square, iron bottom plate (1) is also provided with longitudinal load maintainer (400), the upper end of described longitudinal load maintainer (400) is connected with two tilting mechanisms (100) respectively, described longitudinal load maintainer (400) is connected with iron bottom plate (1) by two frameworks (14), iron bottom plate (1) is also provided with Plumb load mechanism (500), the upper end of described Plumb load mechanism (500) is connected with rotating mechanism (200), horizontal load maintainer (300) is also provided with between two tilting mechanisms (100), described soft supporting post comprises the support set (2) be fixed on iron bottom plate (1), support set (2) upper end is fixedly connected with spring (3), spring (3) inner sleeve has spring guide pillar (4), described spring guide pillar (4) upper end is fixedly connected with spring (3), lower end is positioned at support set (2).
2. electro-hydraulic servo according to claim 1 turns to ball pivot fatigue tester, it is characterized in that, described tilting mechanism (100) is identical with rotating mechanism (200) structure, all comprise the oscillating cylinder (5) of a two shaft, the output shaft of described oscillating cylinder (5) one end connects a fixture (7) afterwards through bearing seat (6), the output shaft of the other end connects torque sensor (8) and connects another fixture (7) afterwards through another bearing seat (6) afterwards, and the output shaft of the other end is also provided with angular transducer (9), wherein tilting mechanism (100) two ends are provided with U-shaped swinging block (10), junction steel plate (13) is all provided with at the upper and lower of tilting mechanism (100) and rotating mechanism (200), wherein the junction steel plate (13) of rotating mechanism (200) below is fixedly connected with spring (3).
3. electro-hydraulic servo according to claim 2 turns to ball pivot fatigue tester, it is characterized in that, described longitudinal load maintainer (400) comprises longitudinal linear actuator (18) of two rod, framework (14) is installed with clutch shaft bearing seat (15), described clutch shaft bearing seat (15) connects the support (16) that energy axle turns, support (16) upper end is fixedly connected with the junction steel plate (13) of tilting mechanism (100) below, support (16) lower end is provided with hinged seat (17), described hinged seat (17) is hinged with the piston rod (19) at longitudinal linear actuator (18) two ends.
4. electro-hydraulic servo according to claim 2 turns to ball pivot fatigue tester, it is characterized in that, described Plumb load mechanism (500) comprises the horizontal lever (20) be fixed on iron bottom plate (1), described horizontal lever (20) one end is hinged with vertical linear actuator (21), the upper end of described vertical linear actuator (21) is fixedly connected with the junction steel plate (13) of rotating mechanism (200) below, the hinged loading frame (22) of the other end of described horizontal lever (20), the upper end of described loading frame (22) is fixedly connected with the junction steel plate (13) of another rotating mechanism (200) below above it.
5. electro-hydraulic servo according to claim 2 turns to ball pivot fatigue tester, it is characterized in that, described horizontal load maintainer (300) comprises horizontal linear actuator (23), and described horizontal linear actuator (23) two ends are fixedly connected with the junction steel plate (13) of tilting mechanism (100) upper and lower respectively by U-shaped Connection Block.
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 |
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| Publication Number | Publication Date |
|---|---|
| CN105334042A true CN105334042A (en) | 2016-02-17 |
| CN105334042B 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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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106525588A (en) * | 2016-12-01 | 2017-03-22 | 华侨大学 | Self-adaptive type extensometer with multiple deformation modes |
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| WO2007135551A2 (en) * | 2006-05-22 | 2007-11-29 | Politecnico Di Milano | Elastic joint with a translating spherical hinge and force and moment sensor improved by means of the said joint |
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-
2015
- 2015-12-08 CN CN201510894496.6A patent/CN105334042B/en not_active Expired - Fee Related
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106525588A (en) * | 2016-12-01 | 2017-03-22 | 华侨大学 | Self-adaptive type extensometer with multiple deformation modes |
| CN106525588B (en) * | 2016-12-01 | 2023-06-23 | 华侨大学 | Multi-deformation-mode self-adaptive extensometer |
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| Publication number | Publication date |
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| CN105334042B (en) | 2017-09-29 |
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Granted publication date: 20170929 |