CN214200952U - Bolt limit tension load measuring clamp - Google Patents
Bolt limit tension load measuring clamp Download PDFInfo
- Publication number
- CN214200952U CN214200952U CN202023280128.8U CN202023280128U CN214200952U CN 214200952 U CN214200952 U CN 214200952U CN 202023280128 U CN202023280128 U CN 202023280128U CN 214200952 U CN214200952 U CN 214200952U
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Abstract
The utility model belongs to a bolt tensile test anchor clamps field relates to a bolt limit tensile load measuring anchor clamps. The clamp includes: two parts of symmetry about the top, each part includes: mounting holes are formed in the lower end faces of the U-shaped groove of the U-shaped piece, the clamping section, the anti-shearing bolt and the U-shaped piece, and one end of the clamping section extends into the U-shaped groove; the anti-shearing bolt penetrates through the groove wall and the clamping section of the U-shaped groove, and the clamping section is fixed in the U-shaped groove and is not in contact with the U-shaped groove; the other end of the clamping section is used as a clamping section; after the two parts are combined, the two mounting holes are jointly provided with a bolt to be tested, so that the upper part and the lower part are fixedly connected.
Description
Technical Field
The utility model belongs to a bolt tensile test anchor clamps field relates to a bolt limit tensile load measuring anchor clamps.
Background
The experimental study is a basic method for design and verification of an aircraft structure, and in order to ensure the safety and reliability of the aircraft structure, a series of experiments are generally required to be designed and carried out for verification and study on a newly designed aircraft structure. For a common airplane structure, the fastener connection has the advantages of simple process, reliable connection, convenience in disassembly and maintenance, large transmission load and the like, and a plurality of fastener connection parts are arranged in the airplane structure. In practical structures the fasteners are subjected primarily to tensile and shear loads, and it is important to achieve their load carrying limits. A large number of bolt mechanical property test tests need to be carried out every year in the aviation field, and a large amount of manpower, material resources and financial resources are needed to be matched.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: a set of special fixture is provided, the bolt is in a unidirectional stretching state in the loading process, accurate ultimate stretching load is obtained, and theoretical reference is provided for engineering design.
The technical field is as follows:
a bolt ultimate tensile load measuring clamp comprising: two parts of symmetry about the top, each part includes: a U-shaped part, a clamping section, an anti-shearing bolt,
A mounting hole is formed in the lower end face of a U-shaped groove of the U-shaped part, and one end of the clamping section extends into the U-shaped groove; the anti-shearing bolt penetrates through the groove wall and the clamping section of the U-shaped groove, and the clamping section is fixed in the U-shaped groove and is not in contact with the U-shaped groove; the other end of the clamping section is used as a clamping section;
after the two parts are combined, the two mounting holes are jointly provided with a bolt to be tested, so that the upper part and the lower part are fixedly connected.
Further, the method also comprises the following steps: installing a gasket;
the installation gasket is filled between the U-shaped groove and the clamping section.
Furthermore, the clamping section is not in contact with the bolt to be tested.
Furthermore, the mounting hole is formed in the center of the lower end face of the U-shaped groove.
Further, the holding section is connected with the testing machine.
Further, the U-shaped piece and the clamping section are both of high-strength steel structure.
Has the advantages that: the bolt can be ensured to be in a pure tension state in the loading process, the accuracy of test data is improved, and the test matching cost can be effectively reduced.
Drawings
Fig. 1 is a schematic view of a bolt ultimate tensile load measuring clamp provided by the utility model.
1-upper clamping section, 2-upper gasket, 3-upper U-shaped part, 4-upper shear bolt, 5-bolt to be tested, 6-lower U-shaped part, 7-lower shear bolt, 8-lower gasket and 9-lower clamping section.
Detailed Description
The utility model comprises two symmetrical parts, including two U-shaped parts 3, 6 for ensuring uniform loading of the bolt, and two upper and lower holding sections 1, 9 connected with the testing machine; the clamping section is connected with the U-shaped piece through anti-shearing bolts 4 and 7, so that subsequent disassembly and assembly are facilitated, and gaskets 2 and 8 are installed between the clamping section and the U-shaped piece to ensure that the upper end and the lower end of the clamping section are centered when loading is carried out.
In the test process, the two U-shaped parts 3 and 6 are connected by the bolt 5 to be tested, the U-shaped parts are high in rigidity, the bolt can be guaranteed to be evenly loaded without generating eccentric bending moment, then the clamping section and the gasket are connected with the U-shaped parts by the shear-resistant bolt, the clamping section is installed on a material testing machine to complete tensile pressure test, and the tensile limit load of the bolt is obtained through measurement. And (5) after the test is finished, disassembling the bolt to be measured, and replacing the bolt to repeat the steps to continue the measurement.
The clamp has high universality, can ensure that the bolt is in a pure tensile state, obtains accurate ultimate tensile load, can be repeatedly used, and reduces the test cost.
Claims (6)
1. A bolt ultimate tensile load measuring clamp is characterized by comprising: two parts of symmetry about the top, each part includes: a U-shaped part, a clamping section, an anti-shearing bolt,
A mounting hole is formed in the lower end face of a U-shaped groove of the U-shaped part, and one end of the clamping section extends into the U-shaped groove; the anti-shearing bolt penetrates through the groove wall and the clamping section of the U-shaped groove, and the clamping section is fixed in the U-shaped groove and is not in contact with the U-shaped groove; the other end of the clamping section is used as a clamping section;
after the two parts are combined, the two mounting holes are jointly provided with a bolt to be tested, so that the upper part and the lower part are fixedly connected.
2. The clamp of claim 1, further comprising: installing a gasket;
the installation gasket is filled between the U-shaped groove and the clamping section.
3. The clamp of claim 1, wherein the clamping section is not in contact with the bolt to be tested.
4. The clamp of claim 1, wherein the mounting hole is provided at a central position of the lower end surface of the U-shaped groove.
5. The fixture of claim 1, wherein the clamping section is connected to the testing machine.
6. The clamp of claim 1, wherein the U-shaped member and the clamping section are both of high strength steel construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023280128.8U CN214200952U (en) | 2020-12-29 | 2020-12-29 | Bolt limit tension load measuring clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023280128.8U CN214200952U (en) | 2020-12-29 | 2020-12-29 | Bolt limit tension load measuring clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214200952U true CN214200952U (en) | 2021-09-14 |
Family
ID=77631704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023280128.8U Active CN214200952U (en) | 2020-12-29 | 2020-12-29 | Bolt limit tension load measuring clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214200952U (en) |
-
2020
- 2020-12-29 CN CN202023280128.8U patent/CN214200952U/en active Active
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