CN103245556A - High-strength steel cylinder piece bending strength testing device - Google Patents
High-strength steel cylinder piece bending strength testing device Download PDFInfo
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- CN103245556A CN103245556A CN2013101647870A CN201310164787A CN103245556A CN 103245556 A CN103245556 A CN 103245556A CN 2013101647870 A CN2013101647870 A CN 2013101647870A CN 201310164787 A CN201310164787 A CN 201310164787A CN 103245556 A CN103245556 A CN 103245556A
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- bending strength
- cylinder piece
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Abstract
The invention relates to a high-strength steel cylinder piece bending strength testing device which is arranged on a cylinder piece to be tested. The high-strength steel cylinder piece bending strength testing device consists of a pressing head and supporting sleeves, which are matched with each other, wherein the pressing head is in an arched structure, is arranged above the middle of the cylinder piece to be tested, and is in linear contact with the cylinder piece to be tested; the supporting sleeves are arranged at two ends of the cylinder piece to be tested; and rounded rolling supporting points are arranged below the supporting sleeves. Compared with the prior art, the high-strength steel cylinder piece bending strength testing device has the advantage that a set of pressing head can perform static test or fatigue test on different testers for static force, fatigue and the like.
Description
Technical field
The present invention relates to a kind of test unit of testing static bending strength or fatigue strength, especially relate to a kind of plow-steel cylindrical element bending strength test device.
Background technology
In 4 or three-point bending barrel strength testing experiment, if jig Design, especially the pressure head design is incorrect, to cause improper destruction, FAQs is cylinder flattening, longitudinal cracking, non-maximal bending moment place cracking etc., therefore, a kind of test unit need be provided at present, above-mentioned existing technical matters can be solved well.
Summary of the invention
Purpose of the present invention is exactly to provide a kind of for the defective that overcomes above-mentioned prior art existence can satisfy a cover pressure head carries out static(al) or torture test at different tests machines such as static(al), fatigues plow-steel cylindrical element bending strength test device.
Purpose of the present invention can be achieved through the following technical solutions:
Plow-steel cylindrical element bending strength test device is installed on the tested cylindrical element, and this test unit is made up of supporting pressure head and support set,
Described pressure head is arched door shape structure, is arranged on the top at tested cylindrical element middle part, is line with tested cylindrical element and contacts;
Described support set is located at the two ends of tested cylindrical element, and the below of support set is provided with circle and rolls fulcrum.
Described pressure head below is line with the curved surface of tested cylindrical element and contact assurance loading moment of flexure.
The two ends that described support set is located at tested cylindrical element guarantee that moment of flexure is stable.
Described support set overlaps, traps by on symmetrically arranged and connect cover and forms with the screw of trapping, overlap on described and the external diameter of the internal diameter of trapping and tested cylindrical element identical, described screw is arranged on the both sides of overlapping and trapping.
Compared with prior art, the present invention can satisfy a cover pressure head and carry out static(al) or torture test at different tests machines such as static(al), fatigues, pressure head is positioned in the middle of two fulcrums, pressure head by two gate arch shapes is formed, two pressure heads are line with cylinder and contact, side-looking is linear load, just is being considered as linear load and making a concerted effort, and be respectively gross load power P half (0.5P).The support reaction that adopts circle to roll does not have horizontal force, satisfies vertical reaction R requirement.Stressed between two pressure heads and fulcrum satisfies the four-point bending requirement, in the middle of maximal bending moment Mmax is positioned at.Theoretical analysis is tired to be positioned at the maximal bending moment place with the static(al) fracture, if there is groove should break at maximal bending moment groove place, evidence static(al) and fatigue are broken all at middle maximal bending moment groove place, echo with theoretical analysis.
Description of drawings
The structural representation that Fig. 1 installs for the present invention;
Fig. 2 loads moment curve for the present invention;
Fig. 3 is the structural representation of pressure head;
Fig. 4 is the structural representation of support set.
Among the figure, 1 for pressure head, 2 for support set, 21 for last cover, 22 for trapping, 23 rolling, 4 be cylindrical element for circle for screw, 3.
Embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments.
Embodiment
Plow-steel cylindrical element bending strength test device is installed on the tested cylindrical element 4, its structure as shown in Figure 1, this test unit is made up of supporting pressure head 1 and support set 2.Pressure head 1 is arched door shape structure, as shown in Figure 3, is arranged on the top at tested cylindrical element 4 middle parts during test, is line with tested cylindrical element 4 and contacts, and guarantees to load moment of flexure.The two ends that support set 2 is located at tested cylindrical element 4 guarantee that moment of flexure is stable, avoid the improper destruction at two ends, be provided with circle and roll 3 as fulcrum below support set 2.Adopt loading moment of flexure situation of the present invention as shown in Figure 2, pressure head 1 contacts by line with the curved surface of tested cylindrical element 4, guarantee to be carried in the transversal section for line contacts, be point load in the front.And then assurance loads moment of flexure (Mmax).Support set 2 is by symmetrically arrangedly going up cover 21, trapping 22 and connect and go up cover 21 and form with 22 the screw 23 of trapping, last cover 21 and 22 the internal diameter of trapping are identical with the external diameter of tested cylindrical element 4, screw 23 is arranged on cover 21 and 22 the both sides of trapping, and also arranges to connect pad etc.
In addition, can also change employed pressure head and support set, can carry out 4 points (3 points) bending test of other shape beams, as be replaced by round rolling, can carry out " worker " font, the bending test of rectangle, plate.Supporting pressure head web member can satisfy a cover pressure head and carry out static(al) or torture test at different tests machines such as static(al), fatigues.
Claims (4)
1. plow-steel cylindrical element bending strength test device is installed on the tested cylindrical element, it is characterized in that, this test unit is made up of supporting pressure head and support set,
Described pressure head is arched door shape structure, is arranged on the top at tested cylindrical element middle part, is line with tested cylindrical element and contacts;
Described support set is located at the two ends of tested cylindrical element, and the below of support set is provided with circle and rolls fulcrum.
2. plow-steel cylindrical element bending strength test device according to claim 1 is characterized in that, described pressure head below is line with the curved surface of tested cylindrical element and contact assurance loading moment of flexure.
3. plow-steel cylindrical element bending strength test device according to claim 1 is characterized in that, the two ends that described support set is located at tested cylindrical element guarantee that moment of flexure is stable.
4. according to claim 1 or 3 described plow-steel cylindrical element bending strength test devices, it is characterized in that, described support set overlaps, traps by on symmetrically arranged and connect cover and forms with the screw of trapping, the external diameter of the internal diameter that overlaps on described and trap and tested cylindrical element coincide, and described screw is arranged on the both sides of overlapping and trapping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310164787.0A CN103245556B (en) | 2013-05-07 | 2013-05-07 | Plow-steel cylindrical element bending strength test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310164787.0A CN103245556B (en) | 2013-05-07 | 2013-05-07 | Plow-steel cylindrical element bending strength test device |
Publications (2)
| Publication Number | Publication Date |
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| CN103245556A true CN103245556A (en) | 2013-08-14 |
| CN103245556B CN103245556B (en) | 2016-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310164787.0A Expired - Fee Related CN103245556B (en) | 2013-05-07 | 2013-05-07 | Plow-steel cylindrical element bending strength test device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105372047A (en) * | 2015-10-14 | 2016-03-02 | 芜湖汉峰科技有限公司 | Reservoir welding performance detection device |
| CN105806602A (en) * | 2016-03-16 | 2016-07-27 | 中国直升机设计研究所 | Anti-icing and deicing main blade fatigue test device |
| CN109765106A (en) * | 2019-01-08 | 2019-05-17 | 上海航天精密机械研究所 | Three-dimensional loading system and method applied to cylindrical product |
| CN113702199A (en) * | 2021-08-23 | 2021-11-26 | 上海业领电子商务有限公司 | Special steel compressive strength detection device |
Citations (6)
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| US5609198A (en) * | 1993-12-23 | 1997-03-11 | Georg Fischer Giessereianlagen Ag | Apparatus for measuring the properties of mold materials |
| CN201177588Y (en) * | 2008-03-21 | 2009-01-07 | 江苏武进液压启闭机有限公司 | Ceramic piston-rod anti-fatigue curve performance test machine |
| CN201195176Y (en) * | 2008-05-22 | 2009-02-18 | 中铁十一局集团第一工程有限公司 | Bending machines |
| CN201497676U (en) * | 2009-01-12 | 2010-06-02 | 攀钢集团研究院有限公司 | Bending fixture used for prefabricating fatigue crack |
| CN201681016U (en) * | 2009-12-14 | 2010-12-22 | 中国飞机强度研究所 | Four point bending flexible supporting device |
| CN102620987A (en) * | 2012-03-14 | 2012-08-01 | 安徽农业大学 | Clamp for crop stem bending test |
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2013
- 2013-05-07 CN CN201310164787.0A patent/CN103245556B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5609198A (en) * | 1993-12-23 | 1997-03-11 | Georg Fischer Giessereianlagen Ag | Apparatus for measuring the properties of mold materials |
| CN201177588Y (en) * | 2008-03-21 | 2009-01-07 | 江苏武进液压启闭机有限公司 | Ceramic piston-rod anti-fatigue curve performance test machine |
| CN201195176Y (en) * | 2008-05-22 | 2009-02-18 | 中铁十一局集团第一工程有限公司 | Bending machines |
| CN201497676U (en) * | 2009-01-12 | 2010-06-02 | 攀钢集团研究院有限公司 | Bending fixture used for prefabricating fatigue crack |
| CN201681016U (en) * | 2009-12-14 | 2010-12-22 | 中国飞机强度研究所 | Four point bending flexible supporting device |
| CN102620987A (en) * | 2012-03-14 | 2012-08-01 | 安徽农业大学 | Clamp for crop stem bending test |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105372047A (en) * | 2015-10-14 | 2016-03-02 | 芜湖汉峰科技有限公司 | Reservoir welding performance detection device |
| CN105806602A (en) * | 2016-03-16 | 2016-07-27 | 中国直升机设计研究所 | Anti-icing and deicing main blade fatigue test device |
| CN109765106A (en) * | 2019-01-08 | 2019-05-17 | 上海航天精密机械研究所 | Three-dimensional loading system and method applied to cylindrical product |
| CN113702199A (en) * | 2021-08-23 | 2021-11-26 | 上海业领电子商务有限公司 | Special steel compressive strength detection device |
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| Publication number | Publication date |
|---|---|
| CN103245556B (en) | 2016-04-06 |
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Granted publication date: 20160406 Termination date: 20190507 |