CN203432856U - Device for testing shear strength of laminated bamboo wood - Google Patents
Device for testing shear strength of laminated bamboo wood Download PDFInfo
- Publication number
- CN203432856U CN203432856U CN201320475497.3U CN201320475497U CN203432856U CN 203432856 U CN203432856 U CN 203432856U CN 201320475497 U CN201320475497 U CN 201320475497U CN 203432856 U CN203432856 U CN 203432856U
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- die
- test specimen
- test piece
- cylindrical cavity
- blanking die
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- 238000012360 testing method Methods 0.000 title claims abstract description 70
- 235000017166 Bambusa arundinacea Nutrition 0.000 title claims abstract description 21
- 235000017491 Bambusa tulda Nutrition 0.000 title claims abstract description 21
- 241001330002 Bambuseae Species 0.000 title claims abstract description 21
- 235000015334 Phyllostachys viridis Nutrition 0.000 title claims abstract description 21
- 239000011425 bamboo Substances 0.000 title claims abstract description 21
- 239000002023 wood Substances 0.000 title claims abstract description 21
- 238000010008 shearing Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 abstract description 5
- 238000004080 punching Methods 0.000 abstract 10
- 238000005452 bending Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 210000003371 toe Anatomy 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to a device for testing shear strength of laminated bamboo wood, and belongs to the field of constructional engineering. The device structurally comprises a punching die and a punching stick, wherein the punching die is of a cylindrical cavity structure with the opened upper end, the cylindrical cavity of the punching die is the same as the punching stick in the section size, a test piece hole from which a test piece can penetrate through the cylindrical structure is formed in the side wall of the cylindrical cavity structure of the punching die, spacing plates parallel to the horizontal line are respectively fixed at the upper edge and the lower edge of the test piece hole in the outer wall of the side wall of the cylindrical cavity structure of the punching die, the test piece penetrates through the spacing plates and the test piece hole, and the punching stick passes through an upper end opening of the punching die so as to be arranged in the punching die to punch the test piece. The impact of a bending moment on the test piece can be lowered in the experiment loading process, so that the test result can show the actual shear strength of the test piece relatively accurately.
Description
Technical field
The utility model relates to a kind of device of bamboo wood shearing strength value test, belongs to building engineering field.
Background technology
Bamboo wood has kept the characteristic of bamboo wood Physical and mechanical properties as a kind of novel furniture base material, have breadth large, be out of shape little, dimensionally stable, intensity are large, good rigidity, original feature such as wear-resistant, and can saw and cut, plane, engrave milling, mortise, boring, sanding, assembling and incrustation mode are processed.Good through certain hydro-thermal place finished product closure while producing due to bamboo wood, can effectively prevent from damaging by worms and going mouldy.With wood furniture comparison, because bamboo wood has stronger physical and mechanical property, therefore under equal carrying mechanical strength, Novel bamboo integrated timber furniture component can meet requirement of strength with less size, on furniture moulded, seem more light and handy, more can embody the rigidity of bamboo wood and the aesthetics of power.At present, bamboo wood shearing strength detects mainly by test specimen being processed into specific sophisticated types, utilizes common universal testing machine stretch or compress, and makes test specimen in the privileged site generation shear failure of special processing, carries out thus shearing strength indirect calculation.This method processing test specimen is comparatively numerous and diverse and test loading is directly perceived not.The utility model provides a kind of device of bamboo wood shearing strength value test, with it, carries out shear strength test, can reduce test specimen difficulty of processing, and process of the test is comparatively directly perceived, simple to operate, and result accurately, reliably.
Summary of the invention
The technical problems to be solved in the utility model is to measure the shearing strength value of bamboo wood, and a kind of device of bamboo wood shearing strength value test is provided.
The apparatus structure of bamboo wood shearing strength value test of the present utility model comprises: blanking die and die-cut rod, and the cylindrical cavity structure that blanking die is upper end open, the cylindrical cavity of blanking die is identical with the sectional dimension of die-cut rod; The sidewall 1 of the cylindrical cavity structure of blanking die has the test specimen hole 4 that can make test specimen pass blanking die, and on the test specimen hole 4 on sidewall 1, edge is all fixed with the limiting plate parallel with horizontal line 5 with lower edge; Test specimen is through limiting plate 5 and test specimen hole 4, and the upper end open of die-cut rod by blanking die is placed in blanking die and carries out die-cut test specimen.
The cylindrical cavity of described blanking die and the cross section of die-cut rod are rectangle.
The limiting plate 5 of described blanking die has pre-tieholen 6, and pre-tieholen 6 passes through fixedly test specimen of pretension screw 7 degrees of tightness.
One end of described die-cut rod is vertically fixed with for die-cut bearing plate 8.
Using method of the present utility model is: shown in Fig. 1～4, blanking die base plate 2 is smooth placement down, the test specimen hole 4 on sidewall is passed in shearing resistance test specimen one end, and stretch out another sidewall, by adjusting test specimen, make in upper and lower spacing plate, the test specimen between 5 is in the extension elongation of blanking die two side 1 direction about equally, adjust pretension screw 7, make it pass pre-tieholen 6 and hold out against test specimen.Then by the die-cut excellent bearing plate 8 shown in Fig. 2 upward, square toes one end is passed blanking die apical pore 3 down, and vertically glides until contact with test specimen along sidewall 1.By bearing plate 8 is applied to downward pressure, die-cut rod is sheared until test specimen destroys to test specimen.
The beneficial effects of the utility model are, can reduce the impact of the suffered moment of flexure of test specimen in test loading procedure, make test findings can represent more exactly the true shear resistance of test specimen.
Accompanying drawing explanation
Fig. 1 is the utility model blanking die schematic top plan view;
Fig. 2 is the utility model blanking die 1-1 schematic cross-section;
Fig. 3 is the utility model blanking die 2-2 schematic cross-section;
Fig. 4 is the die-cut bar structure schematic diagram of the utility model.
Each label implication in figure: 1-sidewall, 2-base plate, 3-apical pore, 4-test specimen hole, 5-limiting plate, the pre-tieholen of 6-, 7-pretension screw, 8-bearing plate.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Embodiment one: as shown in Fig. 1～4, the apparatus structure of the bamboo wood shearing strength value test of present embodiment comprises: blanking die and die-cut rod, blanking die is the cylindrical cavity structure of upper end open, and the cylindrical cavity of blanking die is identical with the sectional dimension of die-cut rod; The sidewall 1 of the cylindrical cavity structure of blanking die has the test specimen hole 4 that can make test specimen pass column construction, and on the test specimen hole 4 on sidewall 1, edge is all fixed with the limiting plate parallel with horizontal line 5 with lower edge; Test specimen is through limiting plate 5 and test specimen hole 4, and the upper end open of die-cut rod by blanking die is placed in blanking die and carries out die-cut test specimen.The cylindrical cavity of blanking die and the cross section of die-cut rod are rectangle.The limiting plate 5 of blanking die has pre-tieholen 6, and pre-tieholen 6 passes through fixedly test specimen of pretension screw 7 degrees of tightness.One end of die-cut rod is vertically fixed with for die-cut bearing plate 8.
Embodiment two: as shown in Fig. 1～4, the apparatus structure of the bamboo wood shearing strength value test of present embodiment comprises: blanking die and die-cut rod, blanking die is the cylindrical cavity structure of upper end open, and the cylindrical cavity of blanking die is identical with the sectional dimension of die-cut rod; The sidewall 1 of the cylindrical cavity structure of blanking die has the test specimen hole 4 that can make test specimen pass column construction, and on the test specimen hole 4 on sidewall 1, edge is all fixed with the limiting plate parallel with horizontal line 5 with lower edge; Test specimen is through limiting plate 5 and test specimen hole 4, and the upper end open of die-cut rod by blanking die is placed in blanking die and carries out die-cut test specimen.The cylindrical cavity of blanking die and the cross section of die-cut rod are square.The limiting plate 5 of blanking die has pre-tieholen 6, and pre-tieholen 6 passes through fixedly test specimen of pretension screw 7 degrees of tightness.One end of die-cut rod is vertically fixed with for die-cut bearing plate 8.
Below by reference to the accompanying drawings embodiment of the present utility model is explained in detail, but the utility model is not limited to above-mentioned embodiment, in the ken possessing those of ordinary skills, can also under the prerequisite that does not depart from aim of the present invention, make various variations.
Claims (4)
1. a device for bamboo wood shearing strength test, is characterized in that: structure comprises blanking die and die-cut rod, the cylindrical cavity structure that blanking die is upper end open, and the cylindrical cavity of blanking die is identical with the sectional dimension of die-cut rod; The sidewall (1) of the cylindrical cavity structure of blanking die has the test specimen hole (4) that can make test specimen pass blanking die, and the upper edge, test specimen hole (4) on sidewall (1) is all fixed with the limiting plate parallel with horizontal line (5) with lower edge; Test specimen is through limiting plate (5) and test specimen hole (4), and the upper end open of die-cut rod by blanking die is placed in blanking die and carries out die-cut test specimen.
2. the device of bamboo wood shearing strength test according to claim 1, is characterized in that: the cylindrical cavity of described blanking die and the cross section of die-cut rod are rectangle.
3. the device of bamboo wood shearing strength test according to claim 1, is characterized in that: the limiting plate of described blanking die (5) has pre-tieholen (6), and pre-tieholen (6) passes through fixedly test specimen of pretension screw (7) degree of tightness.
4. the device of bamboo wood shearing strength test according to claim 1, is characterized in that: one end of described die-cut rod is vertically fixed with for die-cut bearing plate 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320475497.3U CN203432856U (en) | 2013-08-06 | 2013-08-06 | Device for testing shear strength of laminated bamboo wood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320475497.3U CN203432856U (en) | 2013-08-06 | 2013-08-06 | Device for testing shear strength of laminated bamboo wood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203432856U true CN203432856U (en) | 2014-02-12 |
Family
ID=50061887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320475497.3U Expired - Fee Related CN203432856U (en) | 2013-08-06 | 2013-08-06 | Device for testing shear strength of laminated bamboo wood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203432856U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108037020A (en) * | 2017-10-17 | 2018-05-15 | 哈尔滨工业大学 | A kind of device for being used to test fibrous composite bar interface layer shear strength |
| 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 |
-
2013
- 2013-08-06 CN CN201320475497.3U patent/CN203432856U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108037020A (en) * | 2017-10-17 | 2018-05-15 | 哈尔滨工业大学 | A kind of device for being used to test fibrous composite bar interface layer shear strength |
| 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 |
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140212 Termination date: 20140806 |
|
| EXPY | Termination of patent right or utility model |