CN102053033A - Pure bending loading device for testing mechanical property - Google Patents
Pure bending loading device for testing mechanical property Download PDFInfo
- Publication number
- CN102053033A CN102053033A CN2009101744713A CN200910174471A CN102053033A CN 102053033 A CN102053033 A CN 102053033A CN 2009101744713 A CN2009101744713 A CN 2009101744713A CN 200910174471 A CN200910174471 A CN 200910174471A CN 102053033 A CN102053033 A CN 102053033A
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- China
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- connecting rod
- ball bearing
- deep groove
- groove ball
- rotating shaft
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Abstract
The invention discloses a pure bending loading device for testing a mechanical property. The device is characterized by consisting of a long loading arm, a force sensor, a short loading arm, a connecting flange, a connecting rod, a constraint rotating shaft, connecting rod handles, a fixing corner bracket, a test piece connecting plate, a test piece, a photoelectric encoder, a connection rotating shaft and a deep groove ball bearing, wherein one end of the constraint rotating shaft is fixed on a foundation, and the other end of the constraint rotating shaft is in interference fit with a deep groove ball bearing inner sleeve; a deep groove ball bearing outer sleeve is compressed on the long loading arm through the connecting flange; the two ends of the connection rotating shaft are in interference fit with deep groove ball bearing inner sleeves on both sides of the connection rotating shaft respectively; deep groove ball bearing outer sleeves are compressed on the long loading arm through the connecting flange respectively; the connection rotating shaft is tightly connected with through holes at corresponding positions of the connecting rod handles; each pair of connecting rod handles is connected with each other through the connecting rod; an inner revolving shaft of the photoelectric encoder is tightly connected with the constraint rotating shaft; an outer sleeve of the photoelectric encoder is connected to the connecting flange; and the test piece is connected to the short loading arm through the test piece connecting plate and the fixing corner bracket. The device has a compact structure, and is convenient to install.
Description
Technical field
The invention belongs to the test unit technical field that auto parts and components are made, particularly be used for the pure bending charger of mechanical property test.
Background technology
At the vehicle body typical structure part, spray paint etc. to the influence degree of its mechanical property for verifying different manufacturing process such as drawing, electrophoresis, need carry out a kind of simple and don't can influence the test of its mechanical characteristic---as the simple bending mechanical property test.The simple bending mechanical property test more easily realizes on the theoretical analysis, when test loads, boundary condition apply the very big difficulty of existence.
Existing test all exists in various degree defective such as Fig. 1 for the processing of boundary condition.Test specimen 1 also is subjected to the shear action of external load 2 directions among Fig. 1 (a) except by bending, and centre-point load is also very big to the influence of the local mechanical characteristic of test specimen in addition.Fig. 1 (b) has eliminated the defective of Fig. 1 (a) although increased load arm 3, but still can make test specimen 1 be subjected to the compressive load effect of external load 2 directions.
Summary of the invention
The object of the invention provides a kind of pure bending charger that is used for mechanical property test.
Technical scheme of the present invention is achieved in that
The pure bending charger that is used for mechanical property test, it is characterized by: it is long-armed by loading, force transducer, loading galianconism, joint flange, connecting rod, constraint turning axle, connecting rod handle, fixedly corner bracket, test specimen web joint, test specimen, photoelectric encoder, connection turning axle, deep groove ball bearing are formed, constraint turning axle one end is fixed in ground, the other end and bearing inner sleeve have been realized interference fit, and bearing outside by joint flange be pressed in load long-armed; Connect rotating shaft terminal respectively with the bearing inner sleeve interference fit of its both sides, and corresponding bearing outside be connected respectively flange screw load long-armed, each connection turning axle has all been opened threaded hole in place in addition, can carry out screw threads for fastening by the through hole of relevant position on the connecting rod handle and connect; Can pass through connecting rod between every pair of connecting rod handle; Photoelectric encoder in it rotating shaft connect by screw threads for fastening with retraining turning axle or be connected turning axle, and its overcoat is by being threaded onto on the joint flange; Test specimen be installed mainly by the test specimen web joint and fixedly corner bracket be connected to and load on the galianconism.
Characteristics such as the present invention has compact conformation, and is easy for installation.
Description of drawings
Fig. 1 has the experiment loading unit sketch.
Fig. 2 is a structural representation of the present invention.
Fig. 3 is the local structure for amplifying synoptic diagram of the present invention.
Specific embodiments
Describe specific embodiments of the present invention in detail below in conjunction with accompanying drawing.
The pure bending charger that is used for mechanical property test, it is characterized by: it is long-armed 1 by loading, force transducer 2, load galianconism 3, joint flange 4, connecting rod 5, constraint turning axle 6, connecting rod handle 7, fixedly corner bracket 8, test specimen web joint 9, test specimen 10, photoelectric encoder 11, connection turning axle 12, deep groove ball bearing 13 are formed, constraint turning axle 6 one ends are fixed in ground, cover has been realized interference fit in the other end and the bearing 13, and bearing 13 overcoats are pressed in loading long-armed 1 by joint flange 4; Connect turning axle 12 two ends respectively with the bearing 13 of its both sides in the cover interference fit, and corresponding bearing 13 overcoats are connected flange 4 respectively and are pressed on and load long-armed 1; Photoelectric encoder 11 its interior rotating shafts are fastenedly connected with constraint turning axle 6, and its overcoat is connected on the joint flange 4; Test specimen 10 be installed mainly by test specimen web joint 9 and fixedly corner bracket 8 be connected to and load on the galianconism 3.
Described deep groove ball bearing (13) overcoat is connected flange (4) respectively and is pressed on the loading galianconism 3;
Can connect by force transducer 2 between described every pair of connecting rod handle (7);
Described photoelectric encoder (11) in it rotating shaft be connected turning axle 12 and connect by screw threads for fastening.
Embodiment:
Shown in Fig. 2,3, when at the identical power F of loading end effect size, by loading long-armed 1 and the connection campaign of turning axle 6,12, on the upper and lower strut 5 of homonymy, will be subjected to the mutually same effect of drawing a pressure of size, and then produce a moment of flexure on the galianconism 3 loading.Along with these two power of motion of mechanism can produce axial force loading on the galianconism 3, but its axial force is zero with withing joint efforts all the time, and loads galianconism 3 when its moment of flexure that is subjected to is passed to test specimen 10, has just formed a pair of couple, has finished the simple bending loading to test specimen.Can measure the relative rotation that loads long-armed 1 absolute corner and load galianconism 3 and connecting rod 5 by photoelectric encoder 11.
Claims (4)
1. the pure bending charger that is used for mechanical property test, it is characterized by: it is by loading long-armed (1), force transducer (2), load galianconism (3), joint flange (4), connecting rod (5), constraint turning axle (6), connecting rod handle (7), fixing corner bracket (8), test specimen web joint (9), test specimen (10), photoelectric encoder (11), connect turning axle (12), deep groove ball bearing (13) is formed, constraint turning axle (6) one ends are fixed in ground, cover has been realized interference fit in the other end and the deep groove ball bearing (13), and deep groove ball bearing (13) overcoat is pressed in loading long-armed (1) by joint flange (4); Connect turning axle (12) two ends respectively with the deep groove ball bearing (13) of its both sides in the cover interference fit, and corresponding deep groove ball bearing (13) overcoat is connected flange (4) respectively and is pressed on and loads long-armed (1), each connection turning axle (12) has all been opened threaded hole in place in addition, can carry out screw threads for fastening by the through hole of the last relevant position of connecting rod handle (7) and connect; Can connect by connecting rod (5) between every pair of connecting rod handle (7); Its interior rotating shaft of photoelectric encoder (11) is connected by screw threads for fastening with constraint turning axle (6), and its overcoat is by being threaded onto on the joint flange (4); Test specimen (10) be installed main by test specimen web joint (9) and fixedly corner bracket (8) be connected on the loading galianconism (3).
2. the pure bending charger that is used for mechanical property test according to claim 1 is characterized by: described deep groove ball bearing (13) overcoat is connected flange (4) respectively and is pressed on the loading galianconism (3).
3. according to claim 1 or the described pure bending charger that is used for mechanical property test of claim 2, it is characterized by: can connect by force transducer (2) between described every pair of connecting rod handle (7);
4. according to claim 1 or the described pure bending charger that is used for mechanical property test of claim 2, it is characterized by: described photoelectric encoder (11) in it rotating shaft be connected turning axle (12) and connect by screw threads for fastening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101744713A CN102053033A (en) | 2009-11-04 | 2009-11-04 | Pure bending loading device for testing mechanical property |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101744713A CN102053033A (en) | 2009-11-04 | 2009-11-04 | Pure bending loading device for testing mechanical property |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102053033A true CN102053033A (en) | 2011-05-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101744713A Pending CN102053033A (en) | 2009-11-04 | 2009-11-04 | Pure bending loading device for testing mechanical property |
Country Status (1)
| Country | Link |
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| CN (1) | CN102053033A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196747A (en) * | 2013-04-09 | 2013-07-10 | 贺州学院 | Teaching simulation test method of pure bending beam |
| CN110108575A (en) * | 2019-01-03 | 2019-08-09 | 北京交通大学 | Bolt pure bending fatigue test tool and system |
| CN112082865A (en) * | 2020-09-14 | 2020-12-15 | 哈尔滨工程大学 | Novel device for buckling test of inclined strut |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101144764A (en) * | 2007-09-11 | 2008-03-19 | 中北大学 | Dynamic and static mechanics integrated test platform |
| CN101158629A (en) * | 2007-10-26 | 2008-04-09 | 北京工业大学 | Scanning electron microscope electron back scattering diffraction in-situ stretching device and measuring method |
| EP1980835A1 (en) * | 2007-04-11 | 2008-10-15 | ETH Zürich | Appartus for measuring bending stiffness |
| CN201555777U (en) * | 2009-11-04 | 2010-08-18 | 中国第一汽车集团公司 | Pure bending loading device for mechanical property tests |
| CN202693429U (en) * | 2012-05-17 | 2013-01-23 | 吉林大学 | Material mechanical property testing platform for small sample in stretching and bending combined loading mode |
-
2009
- 2009-11-04 CN CN2009101744713A patent/CN102053033A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1980835A1 (en) * | 2007-04-11 | 2008-10-15 | ETH Zürich | Appartus for measuring bending stiffness |
| CN101144764A (en) * | 2007-09-11 | 2008-03-19 | 中北大学 | Dynamic and static mechanics integrated test platform |
| CN101158629A (en) * | 2007-10-26 | 2008-04-09 | 北京工业大学 | Scanning electron microscope electron back scattering diffraction in-situ stretching device and measuring method |
| CN201555777U (en) * | 2009-11-04 | 2010-08-18 | 中国第一汽车集团公司 | Pure bending loading device for mechanical property tests |
| CN202693429U (en) * | 2012-05-17 | 2013-01-23 | 吉林大学 | Material mechanical property testing platform for small sample in stretching and bending combined loading mode |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196747A (en) * | 2013-04-09 | 2013-07-10 | 贺州学院 | Teaching simulation test method of pure bending beam |
| CN110108575A (en) * | 2019-01-03 | 2019-08-09 | 北京交通大学 | Bolt pure bending fatigue test tool and system |
| CN112082865A (en) * | 2020-09-14 | 2020-12-15 | 哈尔滨工程大学 | Novel device for buckling test of inclined strut |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110511 |