CN203908892U - Mechanical stress-corrosion coupling fatigue test device - Google Patents
Mechanical stress-corrosion coupling fatigue test device Download PDFInfo
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- CN203908892U CN203908892U CN201420309477.3U CN201420309477U CN203908892U CN 203908892 U CN203908892 U CN 203908892U CN 201420309477 U CN201420309477 U CN 201420309477U CN 203908892 U CN203908892 U CN 203908892U
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- pressure head
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- corrosive medium
- connecting rod
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Abstract
The utility model discloses a mechanical stress-corrosion coupling fatigue test device which comprises a base, a bracket, a motor, a speed reducer, a connecting rod, a pressure head, a test specimen and a hermetic corrosive medium box, wherein the bracket is arranged on the base; the motor is arranged at the center of the top of the bracket and is connected with the connecting rod through the speed reducer; the pressure head is arranged at the end part of the connecting rod and is in contact with the test specimen; the pressure head and the test specimen are arranged in the hermetic corrosive medium box which is arranged on the base; the pressure head is provided with a pressure sensor; and a corrosive liquid medium or a corrosive gas medium is contained in the hermetic corrosive medium box. The device has the beneficial effects that 1, the variety of corrosive media for the test is enlarged, so that the test environments of various media can be simulated; 2, a temperature control function is realized, so that the test in a temperature range from 0 DEG C to 80+/-2 DEG C can be carried out; and 3, a box heat preservation system is adopted, so that the test is small in temperature fluctuation and high in precision.
Description
Technical field
The utility model relates to a kind of fatigue experimental device, be specifically related to a kind of mechanical type stress-corrosion coupled fatigue test device.
Background technology
Reinforced concrete structure mainly bears action of static load conventionally, but in Practical Project, also has many structures as the structure such as bridge, crane girder, except bearing action of static load, also because bearing repetitive cycling load action, fatigure failure occurs.Whether the fatigue properties of structure are very complicated, identify exactly structure or member and damage, and determine position and the degree of damage, predict its fatigue lifetime, and this overall security tool for structure is of great significance.Up to the present, people to the research of concrete multi-shaft fatigue still not extensively and profoundly, only have and cut fatigue as the pressure of right cylinder three axle fatigues and cylinder under a side constraint opposite side circulation compressive fatigue, diaxon compressive fatigue, confined pressure and Structure Under Axial Compression, etc. several situations, and be all normal width fatigue substantially, research to luffing is little, and the research of diaxon and three axle tension fatigues is not also had at present.Concrete multi-shaft fluctuation is drawn in Dalian University of Technology and the experimental study of the drawingand pressing fatigue performance that fluctuates is carried out.Be that the difficulty of concrete multi-shaft torture test is larger to the less main cause of concrete multi-shaft Fatigue Test Research, the Development Techniques difficulty of multiaxle fatigue experimental system is large on the one hand, expense is high, is the several key technical problems that exist in test on the other hand.
At present also there are some problems in mechanical type stress-corrosion coupled fatigue test device on the market: experimental enviroment is more single, can not adapt to the experimental enviroment of medium, and its temperature environment is also relatively difficult to control, and test temperature fluctuation ratio is larger, and precision is low.
Utility model content
For the deficiency existing in prior art, the utility model object is to be to provide a kind of mechanical type stress-corrosion coupled fatigue test device, simple in structure, experimental enviroment is extensive, can be applied to the experimental enviroment of multiple different medium, equipment possesses temp. control function, and cabinet insulation system makes test temperature fluctuation little, has greatly improved the accuracy of test findings.
To achieve these goals, the utility model is to realize by the following technical solutions: a kind of mechanical type stress-corrosion coupled fatigue test device, comprise base, support, motor, speed reduction unit, connecting rod, pressure head, test specimen and airtight corrosive medium case, on base, be provided with support, support top center is provided with motor, motor is connected with connecting rod by speed reduction unit, interlinking lever end is provided with pressure head, pressure head contacts with test specimen, pressure head and test specimen are all arranged in airtight corrosive medium case, and airtight corrosive medium case is arranged on base; Described pressure head is the pressure head with pressure transducer; In described airtight corrosive medium case, be liquid corrosion medium or gas attack medium.
As preferably, described airtight corrosive medium case is connected with heating blower, and blower fan has temp. control function (0～80 DEG C ± 2 DEG C) blower fan and connects outside air or gas cylinder (nitrogen, carbon dioxide etc.).
As preferably, described corrosive medium cabinet exterior is coated with heat-insulation layer and heating tape, and heating tape is arranged between corrosive medium casing and heat-insulation layer, constant with guard box temperature.
The utlity model has following beneficial effect: 1. expanded the corrosive medium kind of test, can simulate the experimental enviroment of medium;
2. equipment has temp. control function, can carry out the test of 0～80 DEG C ± 2 DEG C of temperature ranges;
3. it is little that cabinet insulation system makes test temperature fluctuation, and precision is high.
Brief description of the drawings
Describe the utility model in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of airtight corrosive medium case of the present utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with embodiment, further set forth the utility model.
With reference to Fig. 1-2, this embodiment is by the following technical solutions: a kind of mechanical type stress-corrosion coupled fatigue test device, comprise base 1, support 2, motor 3, speed reduction unit 4, connecting rod 5, pressure head 6, test specimen 7 and airtight corrosive medium case 8, on base 1, be provided with support 2, support 2 top center are provided with motor 3, motor 3 is connected with connecting rod 5 by speed reduction unit 4, connecting rod 5 ends are provided with pressure head 6, pressure head 6 contacts with test specimen 7, pressure head 6 is all arranged in airtight corrosive medium case 8 with test specimen 7, and airtight corrosive medium case 8 is arranged on base 1; Described pressure head 6 is the pressure head with pressure transducer; In described airtight corrosive medium case 8, be liquid corrosion medium or gas attack medium.
It should be noted that described airtight corrosive medium case 8 is connected with heating blower 9, blower fan has temp. control function (0～80 DEG C ± 2 DEG C) blower fan and connects outside air or gas cylinder (nitrogen, carbon dioxide etc.).
In addition, described corrosive medium casing 10 outer walls are coated with insulation material and heating tape, constant with guard box temperature.
The principle of work of this embodiment: the four-column type structure stand that adopts very high rigidity, load support through chromium plating processing, hydraulic piston is through cure process and have the peak performance of very high surface working precision with warranty test machine, and this embodiment expanded the corrosive medium kind of test, can simulate the experimental enviroment of medium; Equipment has temp. control function, can carry out the test of 0～80 DEG C ± 2 DEG C of temperature ranges; Cabinet insulation system makes test temperature fluctuation little, and precision is high.
More than show and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and instructions, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. a mechanical type stress-corrosion coupled fatigue test device, it is characterized in that, comprise base (1), support (2), motor (3), speed reduction unit (4), connecting rod (5), pressure head (6), test specimen (7) and airtight corrosive medium case (8), on base (1), be provided with support (2), support (2) top center is provided with motor (3), motor (3) is connected with connecting rod (5) by speed reduction unit (4), connecting rod (5) end is provided with pressure head (6), pressure head (6) contacts with test specimen (7), pressure head (6) is all arranged in airtight corrosive medium case (8) with test specimen (7), airtight corrosive medium case (8) is arranged on base (1), described pressure head (6) is the pressure head with pressure transducer, in described airtight corrosive medium case (8), be liquid corrosion medium or gas attack medium.
2. a kind of mechanical type stress-corrosion coupled fatigue test device according to claim 1, is characterized in that, described airtight corrosive medium case (8) is connected with heating blower (9).
3. a kind of mechanical type stress-corrosion coupled fatigue test device according to claim 1, it is characterized in that, described corrosive medium casing (8) outer wall is coated with heat-insulation layer (11) and heating tape (10), and heating tape (10) are arranged between corrosive medium casing (8) and heat-insulation layer (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420309477.3U CN203908892U (en) | 2014-06-05 | 2014-06-05 | Mechanical stress-corrosion coupling fatigue test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420309477.3U CN203908892U (en) | 2014-06-05 | 2014-06-05 | Mechanical stress-corrosion coupling fatigue test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203908892U true CN203908892U (en) | 2014-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420309477.3U Expired - Fee Related CN203908892U (en) | 2014-06-05 | 2014-06-05 | Mechanical stress-corrosion coupling fatigue test device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104020065A (en) * | 2014-06-05 | 2014-09-03 | 长安大学 | Mechanical type stress-corrosion coupling fatigue test device |
| CN104655441A (en) * | 2015-01-30 | 2015-05-27 | 北京交通大学 | Tunnel model test rack |
| CN105571630A (en) * | 2015-12-17 | 2016-05-11 | 苏州莱测检测科技有限公司 | Fatigue test apparatus |
-
2014
- 2014-06-05 CN CN201420309477.3U patent/CN203908892U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104020065A (en) * | 2014-06-05 | 2014-09-03 | 长安大学 | Mechanical type stress-corrosion coupling fatigue test device |
| CN104655441A (en) * | 2015-01-30 | 2015-05-27 | 北京交通大学 | Tunnel model test rack |
| CN104655441B (en) * | 2015-01-30 | 2017-11-17 | 北京交通大学 | A kind of tunnel model test stand |
| CN105571630A (en) * | 2015-12-17 | 2016-05-11 | 苏州莱测检测科技有限公司 | Fatigue test apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Guan Bowen Inventor after: Tian Yaogang Inventor after: Sun Zengzhi Inventor after: Xiong Rui Inventor after: He Rui Inventor after: Wang Zhenjun Inventor after: Cong Peiliang Inventor after: Sheng Yanping Inventor after: Liu Kaiping Inventor after: Xing Mingliang Inventor before: Liu Kaiping Inventor before: Tian Yaogang Inventor before: Sun Zengzhi Inventor before: Xiong Rui Inventor before: He Rui Inventor before: Wang Zhenjun Inventor before: Cong Peiliang Inventor before: Sheng Yanping Inventor before: Guan Bowen Inventor before: Xing Mingliang |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LIU KAIPING SUN ZENGZHI XIONG RUI HE RUI WANG ZHENJUN CONG PEILIANG SHENG YANPING GUAN BOWEN XING MINGLIANG TIAN YAOGANG TO: GUAN BOWEN SUN ZENGZHI XIONG RUI HE RUI WANG ZHENJUN CONG PEILIANG SHENG YANPING LIU KAIPING XING MINGLIANG TIAN YAOGANG |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20150605 |
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| EXPY | Termination of patent right or utility model |