CN202471524U - Bending creep test device for asphalt mixture - Google Patents
Bending creep test device for asphalt mixture Download PDFInfo
- Publication number
- CN202471524U CN202471524U CN2012200096354U CN201220009635U CN202471524U CN 202471524 U CN202471524 U CN 202471524U CN 2012200096354 U CN2012200096354 U CN 2012200096354U CN 201220009635 U CN201220009635 U CN 201220009635U CN 202471524 U CN202471524 U CN 202471524U
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- low
- temperature
- pressing head
- bending creep
- upper pressing
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Abstract
The utility model discloses a bending creep test device for an asphalt mixture. The bending creep test device comprises a stander, wherein a servo motor, a speed reducer and an upper pressing head which are sequentially connected with one another in a transmission manner are arranged on the stander; a high-temperature and low-temperature environment test box is arranged in the stander; the upper part of the upper pressing head extends into the high-temperature and low-temperature environment test box; a load sensor is arranged on the upper pressing head; a lower support corresponding to the upper pressing head is arranged in the high-temperature and low-temperature environment test box and comprises a left supporting head and a lower supporting head; a linear variable differential transformer (LVDT) sensor is arranged between the two supporting heads; and a heating device and a refrigeration device are arranged in the high-temperature and low-temperature environment test box. According to the bending creep test device, the servo motor drives the upper pressing head, so the accuracy of action of the pressing head and the constancy of pressure of the pressing head can be effectively kept; the high-temperature and low-temperature environment test box is relatively closed; and refrigeration and heating are integrated on one set of equipment, so space can be saved, and waste is avoided. The servo motor, the load sensor, the LVDT sensor, the refrigeration device and the heating device can be concentratively and automatically controlled through circuits; and the intelligentization degree of running of the equipment can be further increased.
Description
Technical field
The utility model 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 purpose of the utility model 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 utility model 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 utility model 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 the structural representation of the utility model.
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 utility model comprises 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 the indicative explaination to the utility model; Should not be construed as is the restriction to the utility model technical scheme; The utility model includes but are not limited to above embodiment, and it also can have other suitable conspicuous variations, also can select other suitable modes 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 |
|---|---|---|---|
| CN2012200096354U CN202471524U (en) | 2012-01-11 | 2012-01-11 | Bending creep test device for asphalt mixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200096354U CN202471524U (en) | 2012-01-11 | 2012-01-11 | Bending creep test device for asphalt mixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202471524U true CN202471524U (en) | 2012-10-03 |
Family
ID=46919676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200096354U Expired - Fee Related CN202471524U (en) | 2012-01-11 | 2012-01-11 | Bending creep test device for asphalt mixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202471524U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589985A (en) * | 2012-01-11 | 2012-07-18 | 泰安市路达公路仪器制造有限公司 | Bending creep testing device for asphalt mixture |
| CN103063515A (en) * | 2012-12-20 | 2013-04-24 | 清华大学 | Tensile creep test device for cement-based materials |
| CN104897477A (en) * | 2015-06-19 | 2015-09-09 | 河北工程大学 | Bitumen-like material creep test device |
| CN106769437A (en) * | 2017-03-31 | 2017-05-31 | 长安大学 | Asphalt transversely deforming measurement apparatus under a kind of temperature load coupling |
| CN107807055A (en) * | 2017-09-30 | 2018-03-16 | 东南大学 | A kind of asphalt multisequencing dynamic creep experimental data processing and analysis method |
-
2012
- 2012-01-11 CN CN2012200096354U patent/CN202471524U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589985A (en) * | 2012-01-11 | 2012-07-18 | 泰安市路达公路仪器制造有限公司 | Bending creep testing device for asphalt mixture |
| CN103063515A (en) * | 2012-12-20 | 2013-04-24 | 清华大学 | Tensile creep test device for cement-based materials |
| CN104897477A (en) * | 2015-06-19 | 2015-09-09 | 河北工程大学 | Bitumen-like material creep test device |
| CN106769437A (en) * | 2017-03-31 | 2017-05-31 | 长安大学 | Asphalt transversely deforming measurement apparatus under a kind of temperature load coupling |
| CN106769437B (en) * | 2017-03-31 | 2020-09-22 | 长安大学 | Bituminous mixture lateral deformation measuring device under temperature load coupling effect |
| CN107807055A (en) * | 2017-09-30 | 2018-03-16 | 东南大学 | A kind of asphalt multisequencing dynamic creep experimental data processing and analysis method |
| CN107807055B (en) * | 2017-09-30 | 2019-08-20 | 东南大学 | A kind of asphalt multisequencing dynamic creep experimental data processing and analysis method |
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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: 20121003 Termination date: 20130111 |