CN205677939U - A kind of dismountable nail carries measures bolt - Google Patents
A kind of dismountable nail carries measures bolt Download PDFInfo
- Publication number
- CN205677939U CN205677939U CN201620580843.8U CN201620580843U CN205677939U CN 205677939 U CN205677939 U CN 205677939U CN 201620580843 U CN201620580843 U CN 201620580843U CN 205677939 U CN205677939 U CN 205677939U
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- CN
- China
- Prior art keywords
- bolt
- foil gauge
- dismountable
- measures
- half bolt
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
This utility model provides a kind of dismountable nail to carry and measures bolt, for clamping upper interlayer (10) and lower interlayer (11), measure bolt load, including half bolt one (1), half bolt two (2), nut (3), packing ring (4), half bolt one (1) planar side has fluted (5) from end face to planar side center, foil gauge one (6) and foil gauge two (7) is arranged in groove (5), external data line can penetrate in groove (5) from end face and be connected with foil gauge one (6) and foil gauge two (7), clamping stagnation is realized by key (8) with coordinating of keyway (9) between half bolt one (1) with half bolt two (2).Dismountable provided by the utility model nail carries measures bolt, directly measures the shear strain within bolt and normal strain vertically, and then directly calculates the shear-type load on bolt and axial tensile loads.
Description
Technical field
This utility model belongs to field of airplane structure, is specifically related to dismountable nail and carries measurement bolt.
Background technology
In aircaft configuration joint test, traditional nail carries method of testing and belongs to indirectly testing method, i.e. by connected piece table
The stress distribution in face estimates roughly the load distribution on bolt, and connected piece closes on hole edge area cannot paste foil gauge, therefore its
Computational accuracy is poor.Above-mentioned method of testing, needs to paste multiple foil gauge, the position of foil gauge and the deviation of directivity around a bolt
Impact on result of calculation is bigger.
It addition, tradition nail carries the shearing that method of testing is only capable of estimating roughly on bolt, it is impossible to measure the axle that bolt is born
To load.
Utility model content
The purpose of this utility model is to provide a kind of dismountable nail to carry bolt, directly test shear strain within bolt
Normal strain vertically, and then directly calculate the shear-type load on bolt and axial tensile loads.
The purpose of this utility model is achieved through the following technical solutions: a kind of dismountable nail carries measures bolt, is used for clamping
Upper interlayer and lower interlayer, measure bolt load, including: half bolt one, half bolt two, nut, packing ring, described half bolt one and institute
State half bolt two to be connected with keyway by key, the integral bolt of shape, described half bolt one flat face side from end face to straight
Center, face has groove, is disposed with foil gauge one and foil gauge two in described groove, and external data line penetrates described recessed from end face
It is connected with described foil gauge one and described foil gauge two in groove.
Preferably, divide equally vertically for bolt cross section is semicircle two of described half bolt one and described half bolt two
Point.
Preferably, all there is unified external screw thread at the two ends of described half bolt one and described half bolt two.
Preferably, described foil gauge one is made up of the foil gauge that two sizes are identical, and two these foil gauges are arranged symmetrically with
Both sides in the die joint that described upper interlayer is constituted with described lower sandwich contact.
A kind of dismountable provided by the utility model nail carries having the beneficial effects that of bolt, and foil gauge is arranged in bolt
Portion, can directly obtain the strain numerical value of bolt body, and precision is higher.It is only capable of approximation with traditional measurement method and obtains cutting on bolt
Cutting load to compare, this utility model can obtain shear-type load, it is also possible to obtain axial tensile loads.It addition, a bolt nail
The measurement carried only needs one group of shear strain sheet and one group of axial strain sheet, and the foil gauge quantity consumed in test is few.
Accompanying drawing explanation
Fig. 1 is that dismountable of the present utility model nail carries bolt scheme of installation；
Fig. 2 is that dismountable of the present utility model nail carries bolt sectional view；
Fig. 3 is that dismountable of the present utility model nail carries bolt half bolt one front view；
Fig. 4 is that dismountable of the present utility model nail carries bolt half bolt two front view；
Reference:
1-half bolt one, 2-half bolt two, 3-nut, 4-packing ring, 5-groove, 6-foil gauge one, 7-foil gauge two, 8-
Interlayer under key, 9-keyway, the upper interlayer of 10-, 11-.
Detailed description of the invention
Clearer, below in conjunction with this utility model for the purpose making this utility model implement, technical scheme and advantage
Accompanying drawing in embodiment, is further described in more detail the technical scheme in this utility model embodiment.In the accompanying drawings, ad initio
Represent same or similar element to same or similar label eventually or there is the element of same or like function.Described reality
Executing example is a part of embodiment of the present invention rather than whole embodiments.The embodiment described below with reference to accompanying drawing is to show
Example, it is intended to be used for explaining this utility model, and it is not intended that to restriction of the present utility model.Based in this utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise,
Broadly fall into the scope of this utility model protection.
Below in conjunction with the accompanying drawings this utility model dismountable nail is carried measurement bolt to be described in further details.
As depicted in figs. 1 and 2, dismountable nail carries measurement bolt and is used for clamping interlayer 10 and lower interlayer 11, measures bolt
Load, selects including half bolt one 1, half bolt 22, nut 3 and packing ring 4, half bolt 1 of the present embodiment and half bolt 22
Semicircle, half bolt 1 flat face side (inner side) center fluted 5, arrange foil gauge 1 and foil gauge two in groove 5
7, wherein, foil gauge 6 is made up of the foil gauge that two sizes are identical, and groove 5 leads directly to the top of half bolt 1, external data line
Can penetrate in groove 5 from top and be connected with foil gauge 1 and foil gauge 27, the surrounding of groove 5 has the key 8 of protrusion, such as Fig. 3 institute
Show, inside half bolt 22, have keyway 9, as shown in Figure 4, half bolt 1 at the correspondence position with the key 8 of half bolt 1 protrusion
Realize clamping stagnation by key 8 with coordinating of keyway 9 with between half bolt 22, prevent that slip and rotation, half bolt occur between the two
1 and half the two ends of bolt 22 all have unified external screw thread, coordinate with the female thread of nut 3, by the constraint of nut 3,
Preventing half bolt 1 from separating with half bolt 22, packing ring 4 is for regulating the thickness of interlayer 10 and lower interlayer 11.
During installation, at the groove 5 within half bolt 1, first arrange foil gauge 1, foil gauge 27 and data wire, strain
Sheet 1 is used for measuring shear strain, and foil gauge 27 is used for measuring axial strain, then half bolt 1 and half bolt 22 is buckled
It is connected together, makes the convex key 8 of half bolt 1 embed in the keyway 9 of half bolt 22, afterwards by half bolt 1 and half bolt 22
It is integrally placed in the hole of interlayer 10 and lower interlayer 11, finally at bolt two ends mounting gasket 4 and nut 3, by adjusting up and down
The size of two ends packing ring 4 and quantity, ensure in foil gauge 1 that the foil gauge that two sizes are identical is symmetrically arranged in interlayer 10
The both sides of the die joint constituted are contacted with lower interlayer 11.
Above-mentioned install after, can load and measure shear strain within bolt and axial strain, by multiple spiral shells
The i.e. available corresponding bolt load allocation proportion of the Proportion of strain value of bolt.
The above, detailed description of the invention the most of the present utility model, but protection domain of the present utility model does not limit to
In this, any those familiar with the art in the technical scope that this utility model discloses, the change that can readily occur in
Change or replace, all should contain within protection domain of the present utility model.Therefore, protection domain of the present utility model should be with described
Scope of the claims is as the criterion.
Claims (4)
1. dismountable nail carries and measures a bolt, is used for clamping interlayer (10) and lower interlayer (11), measures bolt load, and it is special
Levy and be, including: half bolt one (1), half bolt two (2), nut (3), packing ring (4), described half bolt one (1) and described half spiral shell
Bolt two (2) is connected with keyway (9) by key (8), and the integral bolt of shape, described half bolt one (1) flat face side is from end face
Have groove (5) to flat face center, in described groove (5), be disposed with foil gauge one (6) and foil gauge two (7), external data
Line penetrates in described groove (5) from end face and is connected with described foil gauge one (6) and described foil gauge two (7).
Dismountable the most according to claim 1 nail carries measures bolt, it is characterised in that described half bolt one (1) and described
Half bolt two (2) is two parts that cross section is semicircle that bolt is divided equally vertically.
Dismountable the most according to claim 1 nail carries measures bolt, it is characterised in that described half bolt one (1) and described
All there is unified external screw thread at the two ends of half bolt two (2).
Dismountable the most according to claim 1 nail carries measures bolt, it is characterised in that described foil gauge one (6) is by two
The foil gauge that size is identical is constituted, and two these foil gauges are symmetrically arranged in described upper interlayer (10) and contact with described lower interlayer (11)
The both sides of the die joint constituted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620580843.8U CN205677939U (en) | 2016-06-13 | 2016-06-13 | A kind of dismountable nail carries measures bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620580843.8U CN205677939U (en) | 2016-06-13 | 2016-06-13 | A kind of dismountable nail carries measures bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205677939U true CN205677939U (en) | 2016-11-09 |
Family
ID=57432344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620580843.8U Active CN205677939U (en) | 2016-06-13 | 2016-06-13 | A kind of dismountable nail carries measures bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205677939U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109596249A (en) * | 2018-11-29 | 2019-04-09 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | A kind of mechanical connecting structure pin load distribution measurement test method |
-
2016
- 2016-06-13 CN CN201620580843.8U patent/CN205677939U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109596249A (en) * | 2018-11-29 | 2019-04-09 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | A kind of mechanical connecting structure pin load distribution measurement test method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |