CN205192874U - Bituminous mixture bending creep test device - Google Patents
Bituminous mixture bending creep test device Download PDFInfo
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- CN205192874U CN205192874U CN201520806965.XU CN201520806965U CN205192874U CN 205192874 U CN205192874 U CN 205192874U CN 201520806965 U CN201520806965 U CN 201520806965U CN 205192874 U CN205192874 U CN 205192874U
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Abstract
The utility model provides a bituminous mixture bending creep test device, includes servo motor, speed reducer and frame, is provided with the high and low temperature environment proof box in the frame, high and low temperature environment proof box upper end connect and go up the pressure equipment and put, the lower extreme is provided with puts corresponding strutting arrangement with last pressure equipment, last pressure equipment put and be provided with load cell, load cell connect depression bar and pressure head, the depression bar on be provided with the stopper, strutting arrangement including supporting head and bracing piece, support head and bracing piece between be provided with the backup pad, the bracing piece lower extreme connect elevating gear, bracing piece and high and low temperature environment proof box between be provided with the sealing washer, the high and low temperature environment proof box in be provided with temperature sensor and rose position protection piece, high and low temperature environment proof box bottom connect circulation tank, security performance that the accuracy that can reach assurance test again can assurance test.
Description
Technical field
The utility model relates to a kind of pitch detecting instrument, is exactly specifically a kind of bending creep testing device for asphalt mixture.
Background technology
Bituminous pavement, under Driving Loading, can make road surface produce larger detrusion, occur wave, passes, embraces, rut.Temperature influence, upon a drop in temperature, bituminous pavement can shrink, namely road surface can ftracture, low-temperature shrink crack is relevant with the low temperature quality of pitch and the contraction of asphalt, creep test is the comparatively good method of Research on Asphalt Mixture low-temperature cracking-resistance, and bending creep is tested because its loading is little, test is simply the best mode of test asphalt creep, but need to heat test specimen or freeze in process of the test, test fast under high-temperature water or after test specimen is heated in hot test, need during low-temperature test to carry out carrying out in refrigerating environment, therefore the above condition of demand fulfillment, and in process of the test, need overload protection and position limitation protection, the degree of accuracy of guarantee test and security.
Summary of the invention
The purpose of this utility model is to provide a kind of bending creep testing device for asphalt mixture, can either the accuracy of warranty test again can the security performance of warranty test.
The technical scheme in the invention for solving the technical problem is: a kind of bending creep testing device for asphalt mixture, comprise servomotor, reductor and frame, frame is provided with high-low-temperature environmental testing case, described high-low-temperature environmental testing case upper end connects upper pressure device, lower end is provided with the bracing or strutting arrangement corresponding with upper pressure device, described upper pressure device is provided with load sensor, described load sensor connects depression bar and pressure head, described depression bar is provided with limited block, described bracing or strutting arrangement comprises supporting member and support bar, back up pad is provided with between described supporting member and support bar, described support bar lower end connects jacking gear, O-ring seal is provided with between described support bar and high-low-temperature environmental testing case, temperature sensor is provided with and the position protection block that rose in described high-low-temperature environmental testing case, cyclic water tank is connected bottom described high-low-temperature environmental testing case, in described high-low-temperature environmental testing case, electric heating tube and evaporator are installed, the external refrigerating plant of described evaporator.
As optimization, described jacking gear is hydraulic cylinder, and described hydraulic cylinder realizes the lifting of whole bracing or strutting arrangement by the lifting controlling support bar.
As optimization, described rising is crossed position protection block and is arranged on back up pad highest position, realizes, to the position limitation of bracing or strutting arrangement uphill process, shielding.
As optimization, described temperature sensor is connected with temperature control system, and temperature control system connects electric heating tube and refrigerating plant.
The beneficial effects of the utility model are: compared with prior art, a kind of bending creep testing device for asphalt mixture of the present utility model, utilize driven by servomotor pressure head, effectively can keep the constant of pressure head accuracy of action and pressure, high-low temperature test chamber relative closure, it freezes and heats on one device integrated, can space be saved and avoid waste, when carrying out hot test by liftable supporter, whole test specimen is placed in hot environment and tests, also bracing or strutting arrangement is risen rapidly after can first being heated in high-temperature water by test specimen, test, save time, effectively ensure that the effect of test, can directly test during low-temperature test, and be provided with temperature sensor, temperature in accurate pulpit, limited location block and the position protection block that rose at the trial, realize the security of equipment operation.
Accompanying drawing explanation
Fig. 1 is the utility model overall construction drawing;
Wherein, 1 servomotor, 2 reductors, 3 frames, 4 high-low-temperature environmental testing casees, 5 load sensors, 6 depression bars, 7 pressure heads, 8 limited blocks, 9 supporting members, 10 support bars, 11 back up pads, 12 jacking gears, 13 O-ring seals, 14 temperature sensors, 15 rose position protection block, 16 cyclic water tanks, 17 electric heating tubes, 18 evaporators.
Embodiment
As shown in Figure 1 in embodiment, a kind of bending creep testing device for asphalt mixture, comprise servomotor 1, reductor 2 and frame 3, frame 3 is provided with high-low-temperature environmental testing case 4, high-low-temperature environmental testing case 4 upper end connects upper pressure device, lower end is provided with the bracing or strutting arrangement corresponding with upper pressure device, upper pressure device is provided with load sensor 5, load sensor 5 connects depression bar 6 and pressure head 7, depression bar 6 is provided with limited block 8, bracing or strutting arrangement comprises supporting member 9 and support bar 10, back up pad 11 is provided with between supporting member 9 and support bar 10, support bar 10 lower end connects jacking gear 12, O-ring seal 13 is provided with between support bar 10 and high-low-temperature environmental testing case 4, temperature sensor 14 is provided with and the position protection block 15 that rose in high-low-temperature environmental testing case 4, cyclic water tank 16 is connected bottom high-low-temperature environmental testing case 4, electric heating tube 17 and evaporator 18 are installed in high-low-temperature environmental testing case 4, the external refrigerating plant of evaporator 18.
Jacking gear 12 is hydraulic cylinder, and hydraulic cylinder realizes the lifting of whole bracing or strutting arrangement by the lifting controlling support bar 10.
The position protection block 15 that rose is arranged on back up pad 11 highest position, realizes, to the position limitation of bracing or strutting arrangement uphill process, shielding.
Temperature sensor 14 is connected with temperature control system, and temperature control system connects electric heating tube 17 and refrigerating plant.
Above-mentioned embodiment is only concrete case of the present utility model; scope of patent protection of the present utility model includes but not limited to product form and the style of above-mentioned embodiment; any meet the utility model claims a kind of bending creep testing device for asphalt mixture and any person of an ordinary skill in the technical field to its suitable change done or modification, all should fall into scope of patent protection of the present utility model.
Claims (4)
1. a bending creep testing device for asphalt mixture, comprise servomotor (1), reductor (2) and frame (3), frame (3) is provided with high-low-temperature environmental testing case (4), it is characterized in that: described high-low-temperature environmental testing case (4) upper end connects upper pressure device, lower end is provided with the bracing or strutting arrangement corresponding with upper pressure device, described upper pressure device is provided with load sensor (5), described load sensor (5) connects depression bar (6) and pressure head (7), described depression bar (6) is provided with limited block (8), described bracing or strutting arrangement comprises supporting member (9) and support bar (10), back up pad (11) is provided with between described supporting member (9) and support bar (10), described support bar (10) lower end connects jacking gear (12), O-ring seal (13) is provided with between described support bar (10) and high-low-temperature environmental testing case (4), temperature sensor (14) is provided with and position protection block (15) of rising in described high-low-temperature environmental testing case (4), described high-low-temperature environmental testing case (4) bottom connects cyclic water tank (16), electric heating tube (17) and evaporator (18) are installed in described high-low-temperature environmental testing case (4), described evaporator (18) external refrigerating plant.
2. a kind of bending creep testing device for asphalt mixture according to claim 1, is characterized in that: described jacking gear (12) is hydraulic cylinder, and described hydraulic cylinder realizes the lifting of whole bracing or strutting arrangement by the lifting controlling support bar (10).
3. a kind of bending creep testing device for asphalt mixture according to claim 1; it is characterized in that: described rising is crossed position protection block (15) and is arranged on back up pad (11) highest position; realize the position limitation to bracing or strutting arrangement uphill process, shield.
4. a kind of bending creep testing device for asphalt mixture according to claim 1, is characterized in that: described temperature sensor (14) is connected with temperature control system, and temperature control system connects electric heating tube (17) and refrigerating plant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520806965.XU CN205192874U (en) | 2015-10-17 | 2015-10-17 | Bituminous mixture bending creep test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520806965.XU CN205192874U (en) | 2015-10-17 | 2015-10-17 | Bituminous mixture bending creep test device |
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| Publication Number | Publication Date |
|---|---|
| CN205192874U true CN205192874U (en) | 2016-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520806965.XU Active CN205192874U (en) | 2015-10-17 | 2015-10-17 | Bituminous mixture bending creep test device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105842058A (en) * | 2016-05-13 | 2016-08-10 | 重庆交通大学 | Asphalt mixture beam specimen bending fatigue test fixture |
| CN107063903A (en) * | 2017-03-31 | 2017-08-18 | 长安大学 | A kind of experimental rig for assessing Thermal Crack of Asphalt |
| CN107478520A (en) * | 2017-08-25 | 2017-12-15 | 滁州职业技术学院 | Low temperature environment building material experiment device |
| 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 |
| CN110057511A (en) * | 2019-05-28 | 2019-07-26 | 上海乔治费歇尔亚大塑料管件制品有限公司 | The experimental provision and experimental method of bending air-leakage test for steel modeling conversion |
| CN114136777A (en) * | 2021-11-19 | 2022-03-04 | 中南安全环境技术研究院股份有限公司 | Device for detecting cracking resistance of asphalt mixture and test method |
-
2015
- 2015-10-17 CN CN201520806965.XU patent/CN205192874U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105842058A (en) * | 2016-05-13 | 2016-08-10 | 重庆交通大学 | Asphalt mixture beam specimen bending fatigue test fixture |
| CN107063903A (en) * | 2017-03-31 | 2017-08-18 | 长安大学 | A kind of experimental rig for assessing Thermal Crack of Asphalt |
| CN107478520A (en) * | 2017-08-25 | 2017-12-15 | 滁州职业技术学院 | Low temperature environment building material experiment device |
| 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 |
| CN110057511A (en) * | 2019-05-28 | 2019-07-26 | 上海乔治费歇尔亚大塑料管件制品有限公司 | The experimental provision and experimental method of bending air-leakage test for steel modeling conversion |
| CN114136777A (en) * | 2021-11-19 | 2022-03-04 | 中南安全环境技术研究院股份有限公司 | Device for detecting cracking resistance of asphalt mixture and test method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |