CN104669162A - Duplex clamp for bamboo tensile test and using method thereof - Google Patents
Duplex clamp for bamboo tensile test and using method thereof Download PDFInfo
- Publication number
- CN104669162A CN104669162A CN201510070585.9A CN201510070585A CN104669162A CN 104669162 A CN104669162 A CN 104669162A CN 201510070585 A CN201510070585 A CN 201510070585A CN 104669162 A CN104669162 A CN 104669162A
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- China
- Prior art keywords
- fixture
- holder
- bamboo wood
- test
- draftability
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a duplex clamp for a bamboo tensile test and a using method thereof. The duplex clamp comprises a first fixing piece, a second fixing piece, a first clamping piece and a second clamping piece, wherein the first fixing piece and the second fixing piece are buckled to form a cylindrical structure; two ends of the first clamping piece are connected with the side surface of the upper end of the first fixing piece and the side surface of the upper end of the second fixing piece respectively; the lower end of the second clamping piece is connected with the middle part of the first clamping piece; during fixing, bamboo to be tested is connected to the interior of the cylindrical structure in a sleeving way; the upper end of the second clamping piece is fixedly arranged on a tensile tester. According to the duplex clamp, the bamboo can be clamped.
Description
Technical field
The present invention relates to a kind of fixture and using method thereof, be specifically related to a kind of twin fixture for the test of bamboo wood draftability and using method thereof.
Background technology
Along with the development of society, the building being material with brick and concrete is in the large-area emergence in city and rural area, but the emergence of these buildings is based upon on the basis of highly energy-consuming, high pollution, therefore great destruction is caused to environment, recent years is along with the continuous enhancing of people's environmental consciousness, the theory of energy-conserving and environment-protective is rooted in the hearts of the people, if can to replace brick and concrete be material is make the developing direction that house or object have become society.Bamboo wood is due to fast growth, and easily reclaim after removing, therefore this obtains development energetically for several years, but according to the kind of bamboo and the difference at age, the performance of bamboo wood is also different, therefore needs to test the performance of bamboo wood, the especially tensile property of bamboo.
In the pertinent literature consulted in a large number about bamboo structure and the discovery of domestic, external bamboo structure specification, so far for the introduction do not had all the time in the research of bamboo property test about circle bamboo tensile test.Reason wherein may have: first, and circle bamboo diameter is comparatively large, does not have suitable tension equipment directly can clamp round bamboo and tests; Secondly, the diameter change of circle bamboo is uneven, sometimes presents with elliptical shape, does not have unified testing equipment to operate.
Summary of the invention
The object of the invention is to the shortcoming overcoming above-mentioned prior art, provide a kind of twin fixture for the test of bamboo wood draftability and using method thereof, this fixture and using method thereof can realize the clamping of bamboo wood.
For achieving the above object, the twin fixture for the test of bamboo wood draftability of the present invention comprises the first fixture, the second fixture, the first holder and the second holder;
Described first fixture and the second fixture are interlocked, and the first fixture and the second fixture constitute a cylindrical structure, the two ends of the first holder are connected with the side of the first fixture upper end and the side of the second fixture upper end respectively, the lower end of the second holder is connected with the middle part of the first holder, time fixing, bamboo to be tested is socketed in described cylindrical structure, and the upper end of the second holder is fixed on cupping machine.
Described first fixture and the second fixture form by superstructure and substructure, wherein, superstructure is arc-shaped structure, substructure is semicircular structure, and centering angle corresponding to superstructure is 60 °, first holder is connected with superstructure, and the inner side of substructure is provided with hangnail.
The length of described hangnail is 5mm, and the angle of hangnail and horizontal plane is 60 °.
All be fixed on connecting plate on the lateral surface at described first fixture two ends and on the lateral surface at the second fixture two ends, the first fixture and the second fixture are connected with the corresponding connecting plate on the second fixture through the connecting plate on the first fixture by bolt.
The quantity of the connecting plate at described first fixture two ends is 2;
The quantity of the connecting plate at described second fixture two ends is 2.
The two ends of described second holder are inserted in the side of the first fixture upper end and the side of the second fixture upper end respectively.
The height of described superstructure is 80mm, and width is 50mm, and wall thickness is 10mm.
The using method of the twin fixture for the test of bamboo wood draftability of the present invention comprises the following steps:
1) bamboo wood to be tested is got, get two twin fixtures for the test of bamboo wood draftability, the twin fixture two being used for the test of bamboo wood draftability is separately fixed at the two ends of bamboo wood to be tested, and fixing method is identical, concrete, hangnail in first fixture is inserted in a side of bamboo end to be tested, then the side on the first fixture is fixed in one end of the first holder, the hangnail in the second fixture is inserted in the another side of bamboo end to be tested, the other end of the first holder is fixed on the side on the second fixture simultaneously again; First fixture and the second fixture are fixedly connected with, then the middle part of one end of the second holder with the first holder is connected;
2) other end of the second holder on upper and lower for bamboo wood to be tested two ends is separately fixed on cupping machine, is then completed the draftability test of bamboo wood to be tested by cupping machine.
The present invention has following beneficial effect:
Twin fixture for the test of bamboo wood draftability of the present invention and using method thereof are when clamping bamboo wood to be tested, first fixture and the second fixture are fastened on the side of bamboo end to be tested, and the hangnail on the hangnail on the first fixture and the second fixture is inserted in the side of bamboo wood to be tested, again the first fixture and the second fixture are connected, then by the first holder, the second holder is connected with the first fixture and the second fixture, thus realize the fixing of bamboo wood to be tested, be applicable to the round bamboo of various sizes, clamping not strongly that bamboo wood diameter change inequality simultaneously can be avoided to bring is solid, at the trial, only need the second holder be fixed on cupping machine, the draftability test of bamboo wood to be tested can be completed, structure is simple, easy to operate, practical.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Wherein, 1 be the first fixture, 2 be the second fixture, 3 be the first holder, 4 be the second holder, 5 be substructure, 6 be superstructure, 7 be connecting plate.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail:
With reference to figure 1, the twin fixture for the test of bamboo wood draftability of the present invention comprises the first fixture 1, second fixture 2, first holder 3 and the second holder 4, described first fixture 1 and the second fixture 2 are interlocked, and the first fixture 1 and the second fixture 2 constitute a cylindrical structure, the two ends of the first holder 3 are connected with the side of the first fixture 1 upper end and the side of the second fixture 2 upper end respectively, the lower end of the second holder 4 is connected with the middle part of the first holder 3, time fixing, bamboo to be tested is socketed in described cylindrical structure, the upper end of the second holder 4 is fixed on cupping machine, described first fixture 1 and the second fixture 2 form by superstructure 6 and substructure 5, wherein, superstructure 6 is arc-shaped structure, substructure 5 is semicircular structure, and the centering angle of superstructure 6 correspondence is 60 °, first holder 3 is connected with superstructure 6, the inner side of substructure 5 is provided with hangnail, the length of hangnail is 5mm, and the angle of hangnail and horizontal plane is 60 °, all be fixed on connecting plate 7 on the lateral surface at the first fixture 1 two ends and on the lateral surface at the second fixture 2 two ends, the first fixture 1 and the second fixture 2 are connected with the corresponding connecting plate 7 on the second fixture 2 through the connecting plate 7 on the first fixture 1 by bolt, the quantity of the connecting plate 7 at the first fixture 1 two ends is 2, the quantity of the connecting plate 7 at the second fixture 2 two ends is 2, the two ends of the second holder 4 are inserted in the side of the first fixture 1 upper end and the side of the second fixture 2 upper end respectively, it should be noted that, substructure 5 is positioned at the center of substructure 5 upper end with the joint face of superstructure 6.
The height of described superstructure 6 is 80mm, and width is 50mm, and wall thickness is 10mm.
The using method of the twin fixture for the test of bamboo wood draftability of the present invention comprises the following steps:
1) bamboo wood to be tested is got, get two twin fixtures for the test of bamboo wood draftability, the twin fixture two being used for the test of bamboo wood draftability is separately fixed at the two ends of bamboo wood to be tested, and fixing method is identical, concrete, hangnail in first fixture 1 is inserted in a side of bamboo end to be tested, then the side on the first fixture 1 is fixed in one end of the first holder 3, again the hangnail in the second fixture 2 is inserted in the another side of bamboo end to be tested, the other end of the first holder 3 is fixed on the side on the second fixture 2 simultaneously, first fixture 1 and the second fixture 2 are fixedly connected with, then the middle part of one end of the second holder 4 with the first holder 3 is connected,
2) other end of the second holder 4 on upper and lower for bamboo wood to be tested two ends is separately fixed on cupping machine, is then completed the draftability test of bamboo wood to be tested by cupping machine.
Claims (8)
1., for a twin fixture for bamboo wood draftability test, it is characterized in that, comprise the first fixture (1), the second fixture (2), the first holder (3) and the second holder (4);
Described first fixture (1) and the second fixture (2) are interlocked, and the first fixture (1) and the second fixture (2) constitute a cylindrical structure, the two ends of the first holder (3) are connected with the side of the first fixture (1) upper end and the side of the second fixture (2) upper end respectively, the lower end of the second holder (4) is connected with the middle part of the first holder (3), time fixing, bamboo to be tested is socketed in described cylindrical structure, and the upper end of the second holder (4) is fixed on cupping machine.
2. the twin fixture for the test of bamboo wood draftability according to claim 1, it is characterized in that, described first fixture (1) and the second fixture (2) form by superstructure (6) and substructure (5), wherein, superstructure (6) is arc-shaped structure, substructure (5) is semicircular structure, and the centering angle of superstructure (6) correspondence is 60 °, first holder (3) is connected with superstructure (6), and the inner side of substructure (5) is provided with hangnail.
3. the twin fixture for the test of bamboo wood draftability according to claim 2, it is characterized in that, the length of described hangnail is 5mm, and the angle of hangnail and horizontal plane is 60 °.
4. the twin fixture for the test of bamboo wood draftability according to claim 1, it is characterized in that, all be fixed on connecting plate (7) on the lateral surface at described first fixture (1) two ends and on the lateral surface at the second fixture (2) two ends, the first fixture (1) and the second fixture (2) are connected with the corresponding connecting plate (7) on the second fixture (2) through the connecting plate (7) on the first fixture (1) by bolt.
5. the twin fixture for the test of bamboo wood draftability according to claim 4, is characterized in that,
The quantity of the connecting plate (7) at described first fixture (1) two ends is 2;
The quantity of the connecting plate (7) at described second fixture (2) two ends is 2.
6. the twin fixture for the test of bamboo wood draftability according to claim 1, it is characterized in that, the two ends of described first holder (3) are inserted in the side of the first fixture (1) upper end and the side of the second fixture (2) upper end respectively.
7. the twin fixture for the test of bamboo wood draftability according to claim 1, it is characterized in that, the height of described superstructure (6) is 80mm, and width is 50mm, and wall thickness is 10mm.
8. for a using method for the twin fixture of bamboo wood draftability test, it is characterized in that, based on the twin fixture for the test of bamboo wood draftability according to claim 2, comprise the following steps:
1) bamboo wood to be tested is got, get two twin fixtures for the test of bamboo wood draftability, the twin fixture two being used for the test of bamboo wood draftability is separately fixed at the two ends of bamboo wood to be tested, and fixing method is identical, concrete, hangnail in first fixture (1) is inserted in a side of bamboo end to be tested, then the side on the first fixture (1) is fixed in one end of the first holder (3), again the hangnail in the second fixture (2) is inserted in the another side of bamboo end to be tested, the other end of the first holder (3) is fixed on the side on the second fixture (2) simultaneously, first fixture (1) and the second fixture (2) are fixedly connected with, then the middle part of one end of the second holder (4) with the first holder (3) is connected,
2) other end of the second holder (4) on upper and lower for bamboo wood to be tested two ends is separately fixed on cupping machine, is then completed the draftability test of bamboo wood to be tested by cupping machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510070585.9A CN104669162A (en) | 2015-02-10 | 2015-02-10 | Duplex clamp for bamboo tensile test and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510070585.9A CN104669162A (en) | 2015-02-10 | 2015-02-10 | Duplex clamp for bamboo tensile test and using method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104669162A true CN104669162A (en) | 2015-06-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510070585.9A Pending CN104669162A (en) | 2015-02-10 | 2015-02-10 | Duplex clamp for bamboo tensile test and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104669162A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107957371A (en) * | 2017-12-18 | 2018-04-24 | 西安建筑科技大学 | A kind of fixture for bamboo chip tension test |
| CN108132191A (en) * | 2017-12-18 | 2018-06-08 | 西安建筑科技大学 | A kind of raw bamboo band circumferential direction shear test device |
| CN107941632B (en) * | 2017-12-18 | 2024-04-12 | 西安建筑科技大学 | Raw bamboo grain-oriented shear test device |
Citations (9)
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|---|---|---|---|---|
| JPS6432147A (en) * | 1987-07-16 | 1989-02-02 | Schenck Ag Carl | Test piece clamper for material tester |
| RU2282173C1 (en) * | 2005-01-11 | 2006-08-20 | Открытое акционерное общество "Точприбор" | Clamp for fastening specimens in tension testing |
| RU2314513C1 (en) * | 2006-04-19 | 2008-01-10 | Научно-исследовательский и конструкторский центр испытательных машин (ООО "НИКЦИМ Точмашприбор") | Device for mechanical testing of materials |
| CN201740696U (en) * | 2010-06-21 | 2011-02-09 | 西安工业大学 | Device for clamping tensile test piece |
| CN101979991A (en) * | 2010-09-16 | 2011-02-23 | 南京林业大学 | Test specimen for testing tensile property of bamboo or wooden material |
| JP4700546B2 (en) * | 2006-04-12 | 2011-06-15 | 新日本製鐵株式会社 | High temperature tensile test jig |
| CN202256038U (en) * | 2011-09-09 | 2012-05-30 | 南阳汉冶特钢有限公司 | Fixture for tensile test of short sample |
| CN203680131U (en) * | 2014-01-09 | 2014-07-02 | 深圳三思纵横科技股份有限公司 | Novel fixture device for tensioning of carbon fiber bar |
| CN203929507U (en) * | 2014-06-30 | 2014-11-05 | 武汉钢铁(集团)公司 | Combined metal pole cryogenic tensile test fixture |
-
2015
- 2015-02-10 CN CN201510070585.9A patent/CN104669162A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6432147A (en) * | 1987-07-16 | 1989-02-02 | Schenck Ag Carl | Test piece clamper for material tester |
| RU2282173C1 (en) * | 2005-01-11 | 2006-08-20 | Открытое акционерное общество "Точприбор" | Clamp for fastening specimens in tension testing |
| JP4700546B2 (en) * | 2006-04-12 | 2011-06-15 | 新日本製鐵株式会社 | High temperature tensile test jig |
| RU2314513C1 (en) * | 2006-04-19 | 2008-01-10 | Научно-исследовательский и конструкторский центр испытательных машин (ООО "НИКЦИМ Точмашприбор") | Device for mechanical testing of materials |
| CN201740696U (en) * | 2010-06-21 | 2011-02-09 | 西安工业大学 | Device for clamping tensile test piece |
| CN101979991A (en) * | 2010-09-16 | 2011-02-23 | 南京林业大学 | Test specimen for testing tensile property of bamboo or wooden material |
| CN202256038U (en) * | 2011-09-09 | 2012-05-30 | 南阳汉冶特钢有限公司 | Fixture for tensile test of short sample |
| CN203680131U (en) * | 2014-01-09 | 2014-07-02 | 深圳三思纵横科技股份有限公司 | Novel fixture device for tensioning of carbon fiber bar |
| CN203929507U (en) * | 2014-06-30 | 2014-11-05 | 武汉钢铁(集团)公司 | Combined metal pole cryogenic tensile test fixture |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107957371A (en) * | 2017-12-18 | 2018-04-24 | 西安建筑科技大学 | A kind of fixture for bamboo chip tension test |
| CN108132191A (en) * | 2017-12-18 | 2018-06-08 | 西安建筑科技大学 | A kind of raw bamboo band circumferential direction shear test device |
| CN108132191B (en) * | 2017-12-18 | 2019-12-10 | 西安建筑科技大学 | Circumferential shear test device for raw bamboo cross grain |
| CN107957371B (en) * | 2017-12-18 | 2023-09-15 | 西安建筑科技大学 | Clamp for bamboo chip tensile test |
| CN107941632B (en) * | 2017-12-18 | 2024-04-12 | 西安建筑科技大学 | Raw bamboo grain-oriented shear test device |
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Application publication date: 20150603 |
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