CN219391587U - Bolt axial load fatigue test fixture convenient to dismouting - Google Patents
Bolt axial load fatigue test fixture convenient to dismouting Download PDFInfo
- Publication number
- CN219391587U CN219391587U CN202223354018.0U CN202223354018U CN219391587U CN 219391587 U CN219391587 U CN 219391587U CN 202223354018 U CN202223354018 U CN 202223354018U CN 219391587 U CN219391587 U CN 219391587U
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- China
- Prior art keywords
- adapter
- bolt
- axial load
- fatigue test
- load fatigue
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to a bolt axial load fatigue test fixture convenient to disassemble and assemble, which comprises a first adapter, a second adapter, a connecting piece, a thread adapter and a bolt adapter; the screw thread adapter is fixedly connected with the front end of the first adapter into a whole through a connecting piece, the screw bolt adapter is fixedly connected with the front end of the second adapter into a whole through a connecting piece, the screw thread adapter is provided with a screw hole, and the screw hole is matched with the external screw thread of the screw bolt test piece; the bolt adapter is provided with a through hole, and the aperture of the through hole of the connecting piece is larger than the outer diameter of a screw rod of the bolt test piece and smaller than the outer diameter of a nut of the bolt test piece; the rear end of the first adapter is respectively matched with the two loading ends of the axial load fatigue test equipment. The utility model has the advantages of simple structure, sufficient operation space and convenient disassembly and assembly of the test piece.
Description
Technical Field
The utility model relates to the technical field of fatigue tests of fasteners, in particular to a clamp which is convenient to disassemble and assemble and used for a bolt axial load fatigue test.
Technical Field
The existing standards related to the fatigue test of the fastener include GB/T13682-1992 'axial load fatigue test method of threaded fastener' and GJB 715.30A-2002 'tensile fatigue test method of fastener', and the two standards both relate to basic requirements and typical design examples of a bolt fatigue test fixture, however, the test fixture designed according to the standard has the problem of inconvenient disassembly and assembly of the fastener due to limited cylindrical and operation space.
Based on fastener fatigue test standard, design bolt axial load fatigue test anchor clamps of easy dismounting can be fine solution above-mentioned problem.
Disclosure of Invention
Object of the Invention
The problem of convenient dismouting of fastener during the bolt axial load fatigue test is solved, but anchor clamps reuse simultaneously. A series of dimensional fixtures can be designed according to the specifications of the fastener.
Technical proposal
The bolt axial load fatigue test fixture is convenient to disassemble and assemble, can be used on different types of axial load fatigue test machines, and can be reused. During the axial load fatigue test of the bolt, the fastener is screwed into the threaded joint through the bolt joint, and the two joints are both open, so that the operation space is sufficient; the threaded joint, the bolted joint and the adapter are then connected by fasteners.
The bolt axial load fatigue test fixture comprises a first adapter 1, a second adapter, a connecting piece, a threaded adapter 2 and a bolt adapter 3;
the screw thread adapter 2 is fixedly connected with the front end of the first adapter into a whole through a connecting piece, the bolt adapter is fixedly connected with the front end of the second adapter into a whole through a connecting piece,
the threaded adapter 2 is provided with a threaded hole which is matched with the external thread of the screw rod of the bolt test piece;
the bolt adapter 3 is provided with a through hole, and the aperture of the through hole of the connecting piece is larger than the outer diameter of a screw rod of the bolt test piece and smaller than the outer diameter of a nut of the bolt test piece;
the rear end of the first adapter is respectively matched with the two loading ends of the axial load fatigue test equipment.
Further, the rear end of the first adapter and the rear end of the second adapter are both cylinders.
Furthermore, the front end of the first adapter and the front end of the second adapter are both of an open box structure. Preferably a square mouth box structure.
Further, the connecting piece is a connecting bolt.
Further, the front end of the threaded adapter 2 and the front end of the bolt adapter 3 are both plane, the threaded hole is formed in the front end plane of the threaded adapter 2, and the through hole is formed in the front end plane of the bolt adapter.
The size of the through holes in the threaded joint 2 and the bolted joint 3 can be designed according to the standard of reference of the sizes of the test fasteners. A series of threaded joints 2 and bolted joints 3 with different specifications and sizes can be designed, so that the fatigue test of bolts with different specifications and sizes can be conveniently carried out.
Advantageous effects
The utility model is suitable for axial load fatigue test of external threaded fasteners such as bolts, studs and the like, and can be suitable for hexagon head bolts, inner hexagon bolts, cross grooves/straight groove half-round head bolts and the like, and countersunk head bolts can also be suitable for countersunk head bolts after countersunk head grooves are formed in through holes of bolt joints. The utility model has the advantages of simple structure, sufficient operation space and convenient disassembly and assembly of the test piece. The utility model relates to a test technology, and provides an effective and convenient method for dismounting for the fatigue test of the axial load of a bolt fastener.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a cross-sectional view of the structure of the present utility model;
wherein: a first adapter 1, a threaded adapter 2, a bolt adapter 3, a second adapter 4, a connecting piece 5 and a bolt test piece 6.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The bolt axial load fatigue test fixture comprises a first adapter 1, a second adapter, a connecting piece, a threaded adapter 2 and a bolt adapter 3;
the screw thread adapter 2 is fixedly connected with the front end of the first adapter into a whole through a connecting piece, the bolt adapter is fixedly connected with the front end of the second adapter into a whole through a connecting piece,
the threaded adapter 2 is provided with a threaded hole which is matched with the external thread of the screw rod of the bolt test piece;
the bolt adapter 3 is provided with a through hole, and the aperture of the through hole of the connecting piece is larger than the outer diameter of a screw rod of the bolt test piece and smaller than the outer diameter of a nut of the bolt test piece;
the rear end of the first adapter is respectively matched with the two loading ends of the axial load fatigue test equipment.
The rear end of the first adapter and the rear end of the second adapter are both cylinders.
The front end of the first adapter and the front end of the second adapter are both of an open box structure. Preferably a square mouth box structure.
The connecting piece is a connecting bolt.
The front end of the threaded adapter 2 and the front end of the bolt adapter 3 are both plane, the threaded hole is formed in the front end plane of the threaded adapter 2, and the through hole is formed in the front end plane of the bolt adapter.
The foregoing is merely a detailed description of the utility model, which is not a matter of routine skill in the art. However, the scope of the present utility model is not limited thereto, and any changes or substitutions that can be easily contemplated by those skilled in the art within the scope of the present utility model should be included in the scope of the present utility model. The protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (6)
1. Bolt axial load fatigue test anchor clamps convenient to dismouting, its characterized in that: the device comprises a first adapter, a second adapter, a connecting piece, a threaded adapter and a bolt adapter;
the screw thread adapter is fixedly connected with the front end of the first adapter into a whole through a connecting piece, the bolt adapter is fixedly connected with the front end of the second adapter into a whole through a connecting piece,
the threaded adapter is provided with a threaded hole which is matched with the external thread of the screw rod of the bolt test piece;
the bolt adapter is provided with a through hole, and the aperture of the through hole of the connecting piece is larger than the outer diameter of a screw rod of the bolt test piece and smaller than the outer diameter of a nut of the bolt test piece;
the rear end of the first adapter is respectively matched with the two loading ends of the axial load fatigue test equipment.
2. The bolt axial load fatigue test fixture convenient to disassemble and assemble according to claim 1, wherein: the rear end of the first adapter and the rear end of the second adapter are both cylinders.
3. The bolt axial load fatigue test fixture convenient to disassemble and assemble according to claim 1, wherein: the front end of the first adapter and the front end of the second adapter are both of an open box structure.
4. The bolt axial load fatigue test fixture convenient to disassemble and assemble according to claim 3, wherein: the front end of the first adapter and the front end of the second adapter are square box body structures.
5. The bolt axial load fatigue test fixture convenient to disassemble and assemble according to claim 1, wherein: the connecting piece is a connecting bolt.
6. The bolt axial load fatigue test fixture convenient to disassemble and assemble according to claim 1, wherein: the front end of the threaded adapter and the front end of the bolt adapter are both plane, the threaded hole is formed in the plane of the front end of the threaded adapter, and the through hole is formed in the plane of the front end of the bolt adapter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223354018.0U CN219391587U (en) | 2022-12-14 | 2022-12-14 | Bolt axial load fatigue test fixture convenient to dismouting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223354018.0U CN219391587U (en) | 2022-12-14 | 2022-12-14 | Bolt axial load fatigue test fixture convenient to dismouting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219391587U true CN219391587U (en) | 2023-07-21 |
Family
ID=87169557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223354018.0U Active CN219391587U (en) | 2022-12-14 | 2022-12-14 | Bolt axial load fatigue test fixture convenient to dismouting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219391587U (en) |
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2022
- 2022-12-14 CN CN202223354018.0U patent/CN219391587U/en active Active
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