CN102589985A - Bending creep testing device for asphalt mixture - Google Patents
Bending creep testing device for asphalt mixture Download PDFInfo
- Publication number
- CN102589985A CN102589985A CN2012100065581A CN201210006558A CN102589985A CN 102589985 A CN102589985 A CN 102589985A CN 2012100065581 A CN2012100065581 A CN 2012100065581A CN 201210006558 A CN201210006558 A CN 201210006558A CN 102589985 A CN102589985 A CN 102589985A
- Authority
- CN
- China
- Prior art keywords
- pressing head
- low temperature
- temperature environment
- upper pressing
- testing box
- 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.)
- Pending
Links
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a bending creep testing device for an asphalt mixture. The device comprises a rack, wherein a servo motor, a speed reducer and an upper pressing head, which are in sequential transmission connection, are arranged on the rack; a high and low temperature environment testing box is arranged in the rack; the upper part of the upper pressing head extends into the high and low temperature environment testing box; the upper pressing head is provided with a load sensor; a lower supporting seat which is opposite to the upper pressing head is arranged in the high and low temperature environment testing box; the lower supporting seat comprises a left supporting head and a right supporting head; a linear variable differential transformer (LVDT) sensor is arranged between the two supporting heads; and the high and low temperature environment testing box is provided with a corresponding heating device and a corresponding refrigerating device. The bending creep testing device for the asphalt mixture has the advantages that the upper pressing head is driven by the servo motor, the motion accuracy of the pressing head and the constancy of pressure can be effectively kept, the high and low temperature environment testing box is relatively closed, refrigerating and heating functions are integrated on equipment, space can be saved, and waste is avoided; and the servo motor, the load sensor, the LVDT sensor, the refrigerating device and the heating device can be automatically controlled in a centralized mode through a circuit, and the degree of intelligence of operation of the equipment is improved.
Description
Technical field
The present invention is a kind of asphalt bending creep test device, and it is used to measure the strain rate of hot-mix asphalt mixture test specimen bending creep under set point of temperature and loading stress level conditions, with the deformation performance of Evaluation of asphalt mixture.
Background technology
Existing asphalt bending creep test device, its pressuring method mostly adopts lever-type structure, and the pressurization accuracy and the automaticity of equipment are not high, have influenced test efficiency greatly; There is its temperature control to be difficult to satisfy testing requirements again.
Summary of the invention
The object of the invention provides a kind of accuracy, automaticity height, easy to operate asphalt bending creep test device with regard to being to be directed against the defective of above-mentioned prior art.
Its technical solution is following: comprise frame; Frame is provided with servomotor, reductor and the seaming chuck of order driving coupling; Be provided with the high-low-temperature environmental testing case in the frame, seaming chuck is probeed in the said high-low temperature test chamber by top, and seaming chuck is furnished with load sensor; Corresponding seaming chuck is provided with undersetting in the high-low-temperature environmental testing case, and two supporting members about said undersetting comprises are provided with the LVDT sensor between two supporting members; Said high-low-temperature environmental testing case also is furnished with corresponding heating arrangement and refrigerating plant.
The present invention is placed on ready-made asphalt material test specimen on the undersetting earlier in use, is supported by two supporting members; And make displacement transducer contact the test specimen bottom; And start heating or refrigerating plant as required, and reach the required environment temperature requirement of test, then start servomotor; Its drive pressure head is moved downward press down test specimen; The process of the pressing down unanimity that should keep-up pressure, but the distortion situation of displacement transducer instant recording test specimen can be analyzed the bending creep characteristic of test specimen according to the data of LVDT sensor and load sensor afterwards.
The invention provides a kind of equipment that carries out the pitch bending creep test preferably; It utilizes the driven by servomotor seaming chuck; Can effectively keep the constant of pressure head accuracy of action and pressure; High-low-temperature environmental testing case relative closure, its refrigeration and heating are integrated on the equipment, can save the space and avoid waste.Above-mentioned servomotor, load sensor, LVDT sensor and refrigeration and heating arrangement can be concentrated control automatically through circuit, further improve the intelligent degree of equipment operation.
Be provided with vertical fair water fin in the high-low-temperature environmental testing case, be provided with blower fan behind the fair water fin.Above-mentioned blower fan and fair water fin can promote flowing of high-low-temperature environmental testing case air, improve refrigeration or heats, guarantee the homogeneity of temperature.
Description of drawings
Fig. 1 is a structural representation of the present invention.
1. servomotor 2. reductors 3. ball screw assembly,s 4. support 5. guiding, 6. load sensors
7. seaming chuck 8. undersettings 9. LVDT sensors 10. frames 11. high-low temperature test chambers 12. heating tubes 13. refrigeration compressors 14. condensers 15. expansion valves 16. evaporators 17. fair water fins 18. blower fans.
Embodiment
The technology contents of below not addressing all can adopt or use for reference prior art.
As shown in Figure 1; The present invention includes frame 10; Frame 10 is provided with servomotor 1, reductor 2 and the seaming chuck 7 of order driving coupling; Be provided with high-low-temperature environmental testing case 11 in the frame 10, seaming chuck 7 is probeed in the said high-low-temperature environmental testing case 11 by top, and seaming chuck 7 is furnished with load sensor 6; Corresponding seaming chuck 7 is provided with undersetting 8 in the high-low-temperature environmental testing case 11, and two supporting members about said undersetting 8 comprises are provided with LVDT sensor 9 between two supporting members; Said high-low-temperature environmental testing case 11 also is furnished with corresponding heating arrangement and refrigerating plant, and heating arrangement is that heating tube 12. refrigerating plants comprise 13. refrigeration compressors, 14. condensers, 15. expansion valves, 16. evaporators.
Be provided with vertical fair water fin 17 in the high-low-temperature environmental testing case, be provided with blower fan 18 behind the fair water fin 17.
In this embodiment, connect through ball screw assembly, between seaming chuck and the reductor, can effectively guarantee the precision and the stability of moving.
Above-mentioned high-low-temperature environmental testing case also should coat heat-insulation layer outward, to strengthen its heat insulation effect.
It is to be noted; Above-mentioned embodiment only is to indicative explaination of the present invention; Should not be construed as is the restriction to technical scheme of the present invention; The present invention includes but be not limited only to above embodiment, it also can have other suitable conspicuous variations, also can select other modes that suit etc. in the prior art like refrigeration and heating arrangement.
Claims (1)
1. asphalt bending creep test device; It is characterized in that: said asphalt bending creep test device comprises frame; Frame is provided with servomotor, reductor and the seaming chuck of order driving coupling; Be provided with the high-low-temperature environmental testing case in the frame, seaming chuck is probeed in the said high-low-temperature environmental testing case by top, and seaming chuck is furnished with load sensor; Corresponding seaming chuck is provided with undersetting in the high-low-temperature environmental testing case, and two supporting members about said undersetting comprises are provided with the LVDT sensor between two supporting members; Said high-low-temperature environmental testing case also is furnished with corresponding heating arrangement and refrigerating plant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100065581A CN102589985A (en) | 2012-01-11 | 2012-01-11 | Bending creep testing device for asphalt mixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100065581A CN102589985A (en) | 2012-01-11 | 2012-01-11 | Bending creep testing device for asphalt mixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102589985A true CN102589985A (en) | 2012-07-18 |
Family
ID=46478929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100065581A Pending CN102589985A (en) | 2012-01-11 | 2012-01-11 | Bending creep testing device for asphalt mixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102589985A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105865936A (en) * | 2016-03-28 | 2016-08-17 | 攀钢集团研究院有限公司 | Low temperature bending detection method of metal material |
| CN105973717A (en) * | 2016-06-17 | 2016-09-28 | 哈尔滨工业大学 | Comprehensive bituminous-mixture low-temperature-performance detection device |
| CN107219129A (en) * | 2017-05-19 | 2017-09-29 | 无锡威孚力达催化净化器有限责任公司 | A kind of device for measuring metallic materials high temperature creep property |
| CN107831067A (en) * | 2017-10-31 | 2018-03-23 | 河南理工大学 | A kind of variable Three Point Bending Creep Test method of rock |
| CN108627402A (en) * | 2018-05-09 | 2018-10-09 | 哈尔滨工业大学 | A kind of test equipment and method of analysis pitch freezing crack performance |
| CN108871971A (en) * | 2018-07-05 | 2018-11-23 | 内蒙古工业大学 | Resin based three-dimensional orthogonal woven composite material bending fatigue stress level-set method |
| CN116296881A (en) * | 2023-02-20 | 2023-06-23 | 江苏维宇隆体育产业发展有限公司 | Sports wood floor check out test set |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5187987A (en) * | 1991-11-19 | 1993-02-23 | The Pennsylvania Research Corporation | Bending beam creep test device with piston having a gas bearing |
| CN202471524U (en) * | 2012-01-11 | 2012-10-03 | 泰安市路达公路仪器制造有限公司 | Bending creep test device for asphalt mixture |
-
2012
- 2012-01-11 CN CN2012100065581A patent/CN102589985A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5187987A (en) * | 1991-11-19 | 1993-02-23 | The Pennsylvania Research Corporation | Bending beam creep test device with piston having a gas bearing |
| CN202471524U (en) * | 2012-01-11 | 2012-10-03 | 泰安市路达公路仪器制造有限公司 | Bending creep test device for asphalt mixture |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105865936A (en) * | 2016-03-28 | 2016-08-17 | 攀钢集团研究院有限公司 | Low temperature bending detection method of metal material |
| CN105865936B (en) * | 2016-03-28 | 2019-05-03 | 攀钢集团研究院有限公司 | The low-temperature bending detection method of metal material |
| CN105973717A (en) * | 2016-06-17 | 2016-09-28 | 哈尔滨工业大学 | Comprehensive bituminous-mixture low-temperature-performance detection device |
| CN105973717B (en) * | 2016-06-17 | 2018-10-09 | 哈尔滨工业大学 | A kind of comprehensive low temperature performance of asphalt detection device |
| CN107219129A (en) * | 2017-05-19 | 2017-09-29 | 无锡威孚力达催化净化器有限责任公司 | A kind of device for measuring metallic materials high temperature creep property |
| CN107831067A (en) * | 2017-10-31 | 2018-03-23 | 河南理工大学 | A kind of variable Three Point Bending Creep Test method of rock |
| CN108627402A (en) * | 2018-05-09 | 2018-10-09 | 哈尔滨工业大学 | A kind of test equipment and method of analysis pitch freezing crack performance |
| CN108871971A (en) * | 2018-07-05 | 2018-11-23 | 内蒙古工业大学 | Resin based three-dimensional orthogonal woven composite material bending fatigue stress level-set method |
| CN108871971B (en) * | 2018-07-05 | 2021-03-02 | 内蒙古工业大学 | Method for horizontally setting bending fatigue stress of resin-based three-dimensional orthogonal woven composite material |
| CN116296881A (en) * | 2023-02-20 | 2023-06-23 | 江苏维宇隆体育产业发展有限公司 | Sports wood floor check out test set |
| CN116296881B (en) * | 2023-02-20 | 2023-09-29 | 江苏维宇隆体育产业发展有限公司 | Sports wood floor check out test set |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102589985A (en) | Bending creep testing device for asphalt mixture | |
| CN202471524U (en) | Bending creep test device for asphalt mixture | |
| CN105673621B (en) | A kind of aviation actuator reciprocation sealing multi-state comprehensive simulation test system | |
| CN105372171B (en) | Concrete cracking overall process experimental rig based on true environment | |
| CN104697872B (en) | The micro-nano mark test method of continuous regulating temperature type high vacuum low temperature and device | |
| CN102798573B (en) | Cryogenic environment material mechanical performance detection test device | |
| CN2919253Y (en) | Portable lever low-temperature concretion meter | |
| CN105352876A (en) | Real environment-based concrete cracking whole process test apparatus and method | |
| CN104089828A (en) | Multifunctional microcomponent extensograph | |
| CN203494530U (en) | Constant-temperature water bathing device for detecting quality of asphalt | |
| CN2919232Y (en) | Shearing apparatus in low temperature | |
| CN202485997U (en) | Superminiature minimally-invasive high-temperature creep fatigue testing machine | |
| CN109163982A (en) | A kind of thermal environment bilateral loading equipment and test method | |
| CN103464232A (en) | Thermostatic waterbath device for detecting asphalt quality | |
| CN102175537A (en) | Thermal medium bulging test machine | |
| CN102269675B (en) | Biaxial tensile testing device with thirdly directional stress provided by fluid pressure and application thereof | |
| CN105784559A (en) | True triaxial fluid-structure interaction coal body seepage test device | |
| CN104198371B (en) | A kind of Fluid pressure provides thick to the sheet material frictional behaviour experimental rig of stress and its application | |
| CN104913870B (en) | Friction measuring device and friction measuring method | |
| CN204389102U (en) | Dual force source superposing type multi-dimension force sensor calibrating installation | |
| CN208171615U (en) | Tire high/low temperature load testing machine | |
| CN104502206A (en) | Liquid-resistant creep testing machine | |
| CN204855428U (en) | Coefficient of heat conductivity tester | |
| CN104181053A (en) | Device and method for testing plate wrinkling performance under thickness-direction stress | |
| CN101788452A (en) | Dynamic corrosion test method and equipment thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 271000 No. 1708, Fengxiang Road, hi tech Development Zone, Shandong, Tai'an Applicant after: Shandong Luda Test Instrument Co., Ltd. Address before: 271000 No. 1708, Fengxiang Road, hi tech Development Zone, Shandong, Tai'an Applicant before: Luda Road Instrument Manufacturing Co., Ltd., Tai'an City |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: LUDA ROAD INSTRUMENT MANUFACTURING CO., LTD. TAIAN CITY TO: SHANDONG LUDATEST INSTRUMENT CO., LTD. |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120718 |