CN203037544U - Mechanical pushing fatigue testing machine - Google Patents
Mechanical pushing fatigue testing machine Download PDFInfo
- Publication number
- CN203037544U CN203037544U CN 201220664441 CN201220664441U CN203037544U CN 203037544 U CN203037544 U CN 203037544U CN 201220664441 CN201220664441 CN 201220664441 CN 201220664441 U CN201220664441 U CN 201220664441U CN 203037544 U CN203037544 U CN 203037544U
- Authority
- CN
- China
- Prior art keywords
- test
- testing machine
- counter
- fatigue
- oval wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000009661 fatigue test Methods 0.000 title abstract description 17
- 238000012360 testing method Methods 0.000 claims description 46
- 238000005260 corrosion Methods 0.000 claims description 32
- 230000007797 corrosion Effects 0.000 claims description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 abstract description 17
- 239000010959 steel Substances 0.000 abstract description 17
- 238000006073 displacement reaction Methods 0.000 abstract description 13
- 230000007246 mechanism Effects 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000003638 chemical reducing agent Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012857 repacking Methods 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000012669 compression test Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000036244 malformation Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000013341 scale-up Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a mechanical pushing fatigue testing machine and belongs to the field of structure experimental mechanics. The mechanical pushing fatigue testing machine mainly comprises a steel frame, a power mechanism, a speed reduction mechanism, an oval wheel disc mechanism, an adjusting mechanism and a corroding device. The technical scheme includes that the power mechanism changes output speed through a speed reducer so as to adapt to needs of an operating mechanism, circular motion is converted into linear motion by motion of an oval wheel disc, a pushing rod is connected with an elastic component, counter force can be adjusted by adjusting the elastic component and the length of the pushing rod, and accordingly, application of accurate reciprocation fatigue load is realized. Meanwhile, if the elastic component is removed, fatigue test of displacement control can be realized. The mechanical pushing fatigue testing machine has the advantage of high accuracy.
Description
Technical field
The utility model relates to the multi-functional corrosion fatigue testing machine of a kind of mechanical pushing tow, belongs to the structural experiment mechanics field.
Background technology
In aviation, navigation, traffic, bridge, building, the port engineering structure, the beam of various materials and flexible member are typical primary structure member, they all are under the repetition stress under the various environment for a long time, thereby this class A of geometric unitA fatigue strength under various environment is the important subject in the structural mechanics.Particularly in the modern project structural design, must study the strength problem of member under complex environment and load, press for and in the laboratory, realize this load and ambient condition, examine the fatigue strength of member, set up for next step theory and prepare.
For a long time, realize that for this class A of geometric unitA corrosion fatigue test is very difficult cheaply.Can realize by the servo apply hydraulic pressure fatigue tester at present, but because these equipment price costlinesses, environment for use is had strict requirement, and high energy consumption, the long-time use need very high experimentation cost.
Some existing mechanical erosion fatigue testers, because the simple employing displacement control of its charger loads, so in elastic range, malformation is less, the precision of load is realized by displacement accuracy fully, the wearing and tearing of testpieces in adding torture test, accuracy requirement that therefore can't warranty test load, cause test effect not good, especially for the small size test specimen.
The utility model content
The mechanical type pushing tow fatigue tester that provides a kind of precision high is provided the purpose of this utility model.
A kind of mechanical type pushing tow fatigue tester is characterized in that: comprise bracing frame, charger; Wherein charger comprise the horizontal motor that is fixedly installed in bracing frame, the power source axle that links to each other with horizontal motor by reductor, the oval wheel that is installed on the power source axle; Also comprise the linear bearing and the counter-force sleeve that are fixedly installed in bracing frame and are positioned at the oval wheel below successively; Above-mentioned counter-force sleeve top has first hole, pad, spring, loading pressure head is installed successively, at the adjustable adjustable plate of counter-force tube inner height in the counter-force sleeve from top to bottom, has second hole on the adjustable plate; Second hole that stretch out on the adjustable plate lower end of above-mentioned loading pressure head contacts with testpieces; In the above-mentioned linear bearing propulsion arm is installed, the propulsion arm upper end contacts with oval wheel, and strong sensor is installed in the lower end; First hole that counter-force sleeve top is passed in power sensor lower end contacts with pad.
Described mechanical type pushing tow fatigue tester is characterized in that: this testing machine changes and comprises corrosion device, and corrosion device is made up of water pump and the corrosion case that is positioned at loading pressure head below.
Described mechanical type pushing tow fatigue tester carries out test specimen corrosion fatigue test method, it is characterized in that may further comprise the steps: (1), configuration etchant solution, test specimen is put into the corrosion case, by the turnover of water pump control etchant solution; (2), the ellipse of revolution wheel disc, regulate the oval wheel position by demand after, with oval wheel and power source shaft locking; (3), start power source, utilize the stroke of adjustable plate regulating spring; (4), by the further stroke of fine setting flexible member, adjust the entire length of propulsion arm, satisfy test specimen and load demand; Carry out the test specimen corrosion fatigue test.
The ultimate principle of this corrosion fatigue testing machine utility model is actuating unit, the reducing gear collaborative work, mainly load by mechanical type pushing tow multifunctional loading unit, corrode by corrosion device then, load the combination of namely adopting mechanical motion and flexible member, by flexible member power and the principle that is deformed into direct ratio, the stroke of scale-up displacement, reduce the structure wearing and tearing, the load error that mechanical clearance causes, pass through oval wheel, lock(ing) bolt, propulsion arm, flexible member,, realize beam, plate, the tired method that loads of the repetition of the degree of precision of structural details such as spring.
Major advantage:Realize corrosion and tired acting in conjunction at same test unit; With a kind of combination of adopting mechanical motion and flexible member, by oval wheel, lock(ing) bolt, propulsion arm, flexible member, realize the tired method that loads of the repetition of structural details such as beam, plate, spring; On same set of test unit, two kinds of test methods of realizable force control and position control; Test unit is simple in structure, dependable performance, and equipment manufacturing cost is low; Test unit is the low energy consumption product, and energy-conserving and environment-protective, experimentation cost are cheap; Be applicable to the corrosion fatigue test under the particular surroundings that test frequency is low, the test period is long.
The expection benefit:The particular surroundings (corrosion environments such as high low temperature, salt fog and sulphuric dioxide) that this test unit has solved and required in the structural mechanics that test frequency is low, the test period is long is the technical barrier of low-cost torture test down, for the Corrosion Fatigue Properties research of structure and material provides a kind of simple and easy to do test method and device.The unmanned corrosion fatigue test device of the low energy consumption of designing, high reliability is used the test battery device, the test method of realizable force and the tired loading of displacement control and corrosion fatigue coupling.And the test unit principle is clear, and compact conformation is easy to use, and low cost of manufacture is reusable, is very suitable for the test of the torture test part in enormous quantities of new material, structure, has very high engineering using value.
Description of drawings
Fig. 1 is the test unit front view;
Fig. 2 is test unit side view (main member);
Fig. 3 testing machine bending test synoptic diagram;
Fig. 4 testing machine shear test synoptic diagram;
The attached test apparatus of Fig. 5 corrosion fatigue machine;
The number in the figure title: 1. reductor bolt hole 2. power source axles 3. oval wheels 4. clamping screws 5. reductor supports 6. propulsion arms 7. linear bearings 8. power sensors 9. pads 10. flexible members 11. counter-force shells 12. adjustable plates 13. load test part pads 14. testpieces 15. corrosion fatigue test casees 16. bracing frames, 17. load pressure heads 18. rigidity steel plates 19. reserve tanks 20. water pumps 21. reductors 22. motors 23. threaded rods 24. center pits 25. steel plates 26. testpieces 27. clamp devices 28. testpieces
Embodiment
The effect of each main associated components
Oval wheel: the propulsion arm that moves through of oval wheel makes circular motion originally, changes the rectilinear motion of pushing tow into, makes charger that the pressure of orthoscopic is provided.
Linear bearing: make two raceways that the rolling bearing of linear relative movement be arranged at rotating direction.
Propulsion arm: the transfer device of power, change the curve displacement difference of oval wheel into power, be directly delivered to loading specimen.
Motor: change electric energy the device of mechanical energy into, for whole corrosion fatigue machine provides power source.
Reductor: be that power is passed on mechanism, utilize the velocity transducer of gear, the winding number of engine is decelerated to desired winding number, and obtain the mechanism of big torque, also reduced the inertia of load simultaneously.
Flexible member: regulate and control the size of counter-force by flexible member, thereby reach the purpose of power control.
Other experimental section synoptic diagram of corrosion fatigue machine
This corrosion fatigue machine is the multi-functional corrosion fatigue testing machine of mechanical type pushing tow, when carrying out corrosion fatigue, attached apparatus is simply reequiped or used to machine, can carry out otherwise experiment.As Fig. 3, Fig. 4, shown in Figure 5, fatigue machine can carry out experiments such as bending test, shear test, tension test and compression test.
Fig. 3 testing machine bending test synoptic diagram; Repacking explanation: adjust the propulsion arm of corrosion fatigue testing machine, then testpieces is placed (distance can be adjusted) on the bearing, utilize machine to drive propulsion arm, can apply concentrated force, thereby carry out bending test.
Fig. 4 testing machine shear test synoptic diagram; Repacking explanation: adjust the distance of test specimen bearing, make as above figure state of testpieces by clamp device again, again portal frame such as figure are clamped testpieces, drive propulsion arm by oval wheel and apply shearing to test specimen.
The attached experiment apparatus threaded rod of Fig. 5 corrosion fatigue machine has nut, plays the purpose that supports whole apparatus, can regulate distance between each steel plate by nut.Center pit can allow testpieces pass steel plate, makes testpieces be stable between each steel plate.
Repacking explanation: utilize the attached experiment apparatus of the multi-functional corrosion fatigue machine of mechanical type pushing tow as shown in the figure, can carry out the tensile and compression test of testpieces.Utilize anchor clamps and ground tackle to be fixed in steel plate testpieces
And steel plate
Between, lifting jack places steel plate then
And steel plate
Between, using lifting jack, lifting jack will be with steel plate
Upwards the top namely is equivalent to steel plate
A pulling force that makes progress just played the effect of tension test part, and the size of pulling force can record by mechanics sensor.Same, if testpieces is still placed steel plate
And steel plate
Between, but lifting jack is placed steel plate
And steel plate
Between, using lifting jack, lifting jack can be with steel plate
To pressing down, namely be equivalent to pressure of testpieces, and the size of pressure also can record by mechanics sensor.
Realize ultimate principle of the present utility model
This corrosion fatigue testing machine is realized the tired purpose that loads mainly by the work that cooperatively interacts of actuating unit, reducing gear, load maintainer; Add the work of corrosion device afterwards, corrode when being implemented in fatigue.Because the structural fatigue test is all carried out in the elastic range of material, therefore under the effect of load, the distortion of structure is very little, so the displacement deformation to the corrosion fatigue machine is had relatively high expectations, especially the displacement deformation of oval wheel formation requires to have very high repeatable accuracy, simultaneously owing to the surface fatigue wearing and tearing of testpieces and the rigidity degradation reason of testpieces itself, all can cause testpieces under identical displacement effect and the bigger load error of appearance.The purpose of introducing flexible member in the utility model is exactly the moderate finite deformation by flexible member, form needed load and carry out torture test, reduce the load error that above-mentioned cause causes, well solved direct employing charger, reducing gear, the linkage assembly insurmountable load precision problem in the tired load test that moves back and forth.
Tired charger adopts the mode of oval wheel pushing tow connecting rod, has well solved displacement and has played the problem of adjusting by 0 displacement, can be implemented in the little displacement torture test under the displacement control.
Claims (2)
1. a mechanical type pushing tow fatigue tester is characterized in that: comprise bracing frame (16), charger; Wherein charger comprise the horizontal motor (22) that is fixedly installed in bracing frame, the power source axle (2) that links to each other with horizontal motor (22) by reductor (21), the oval wheel (3) that is installed on power source axle (2); Also comprise the linear bearing (7) and the counter-force sleeve (11) that are fixedly installed in bracing frame (5) and are positioned at oval wheel (3) below successively; Above-mentioned counter-force sleeve (11) top has first hole, pad (9), spring (10) are installed in the counter-force sleeve (11) from top to bottom successively, are loaded pressure head (17), at the adjustable adjustable plate (12) of counter-force tube inner height, has second hole on the adjustable plate; Second hole that stretch out on the adjustable plate lower end of above-mentioned loading pressure head (17) contacts with testpieces; Propulsion arm (6) is installed in the above-mentioned linear bearing (7), and the propulsion arm upper end contacts with oval wheel, and strong sensor (8) is installed in the lower end; First hole that counter-force sleeve top is passed in power sensor lower end contacts with pad (9).
2. mechanical type pushing tow fatigue tester according to claim 1, it is characterized in that: this testing machine changes and comprises corrosion device, and corrosion device is by water pump (20) and be positioned at the corrosion case (15) that loads pressure head (17) below and form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220664441 CN203037544U (en) | 2012-12-06 | 2012-12-06 | Mechanical pushing fatigue testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220664441 CN203037544U (en) | 2012-12-06 | 2012-12-06 | Mechanical pushing fatigue testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203037544U true CN203037544U (en) | 2013-07-03 |
Family
ID=48689655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220664441 Expired - Fee Related CN203037544U (en) | 2012-12-06 | 2012-12-06 | Mechanical pushing fatigue testing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203037544U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102980822A (en) * | 2012-12-06 | 2013-03-20 | 南京航空航天大学 | Mechanical type pushing fatigue tester and corrosion fatigue testing method |
| CN105004620A (en) * | 2015-07-16 | 2015-10-28 | 浙江工业大学 | High-frequency fatigue testing machine dynamic load error compensation method |
| CN106323775A (en) * | 2016-09-08 | 2017-01-11 | 天津航天瑞莱科技有限公司 | Fatigue test apparatus for performing displacement constraint with spacing mechanism |
| CN111829763A (en) * | 2020-04-28 | 2020-10-27 | 同济大学 | Electric spring fatigue testing device of containing type node |
| CN112304773A (en) * | 2020-09-28 | 2021-02-02 | 烟台泰悦流体科技有限公司 | Fatigue test device for flexible pipe in bending state |
-
2012
- 2012-12-06 CN CN 201220664441 patent/CN203037544U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102980822A (en) * | 2012-12-06 | 2013-03-20 | 南京航空航天大学 | Mechanical type pushing fatigue tester and corrosion fatigue testing method |
| CN105004620A (en) * | 2015-07-16 | 2015-10-28 | 浙江工业大学 | High-frequency fatigue testing machine dynamic load error compensation method |
| CN105004620B (en) * | 2015-07-16 | 2017-09-26 | 浙江工业大学 | A kind of dynamic load error compensating method of HF fatigue testing machine |
| CN106323775A (en) * | 2016-09-08 | 2017-01-11 | 天津航天瑞莱科技有限公司 | Fatigue test apparatus for performing displacement constraint with spacing mechanism |
| CN106323775B (en) * | 2016-09-08 | 2023-05-26 | 天津航天瑞莱科技有限公司 | Fatigue test device for carrying out displacement constraint by limiting mechanism |
| CN111829763A (en) * | 2020-04-28 | 2020-10-27 | 同济大学 | Electric spring fatigue testing device of containing type node |
| CN111829763B (en) * | 2020-04-28 | 2022-05-06 | 同济大学 | Electric spring fatigue testing device of containing type node |
| CN112304773A (en) * | 2020-09-28 | 2021-02-02 | 烟台泰悦流体科技有限公司 | Fatigue test device for flexible pipe in bending state |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102980822A (en) | Mechanical type pushing fatigue tester and corrosion fatigue testing method | |
| CN203037544U (en) | Mechanical pushing fatigue testing machine | |
| CN103868812B (en) | A kind of variable load rolling friction abrasion machine | |
| CN102519716B (en) | Test stand for performance of linear electromechanical actuator | |
| US20210131911A1 (en) | Test device for quasi zero stiffness isolator | |
| CN103175728B (en) | The power true triaxil tester of soil | |
| CN201974262U (en) | Microminiature aircraft power testing system | |
| CN105628371A (en) | Blade fatigue performance tester | |
| CN107290104B (en) | Automatic calibration device and calibration method for flexible film array pressure sensor | |
| CN202582832U (en) | Couple type torque standardizing machine | |
| CN202548015U (en) | Hydraulic mechanical property measurement device for composite load loading mode material | |
| CN103616128A (en) | Six-dimension force sensor calibration device and loading unit thereof | |
| WO2021248725A1 (en) | Integrated test device capable of loading tension or pressure and vibration | |
| CN102998074A (en) | Device and method for testing vibration performance of basic translation flexible beam | |
| CN104266910A (en) | Method and device for loading fatigue test force | |
| CN104864061A (en) | Electrohydraulic hybrid drive lead screw transmission system and control method thereof | |
| CN105738021A (en) | Linear steering engine loading device | |
| CN101881679A (en) | Airplane steering wheel multi-axis force measurement component and measurement method thereof | |
| CN204389102U (en) | Dual force source superposing type multi-dimension force sensor calibrating installation | |
| CN102539245B (en) | Portable rapid testing device for strength of concrete test block | |
| CN108332978A (en) | A kind of tension-torsion fatigue test board for Automobile flywheel disk | |
| CN109283067B (en) | Two-way shear test device of sheet metal | |
| CN202886177U (en) | Comprehensive testing machine for electro-hydraulic servo steel strands | |
| CN212621436U (en) | Electronic jar capability test device | |
| CN103926039A (en) | Electromechanical type force source device allowing bi-directional loading |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130703 Termination date: 20161206 |