CN209878306U - High strength bolt stretching device - Google Patents
High strength bolt stretching device Download PDFInfo
- Publication number
- CN209878306U CN209878306U CN201920845782.7U CN201920845782U CN209878306U CN 209878306 U CN209878306 U CN 209878306U CN 201920845782 U CN201920845782 U CN 201920845782U CN 209878306 U CN209878306 U CN 209878306U
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- China
- Prior art keywords
- fixed part
- bolt
- high strength
- strength bolt
- screw rod
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model provides a high strength bolt stretching device. The utility model provides a high strength bolt stretching device includes board, frame, first fixed part and second fixed part, the second fixed part set firmly in the board top, the frame supports first fixed part suspension in second fixed part top just first fixed part and second fixed part interval are relative, the second fixed part include the support with set firmly in the screw rod fixed part of support upper surface, the screw rod fixed part includes that one has the internal screw thread blind hole, internal thread and bolt pole portion size match just the bolt passes through the spiral shell and goes into the blind hole with bolt fixed part spiro union. Through the hard connection between second fixed part and the screw rod, the emergence of the phenomenon of skidding has been avoided.
Description
Technical Field
The utility model relates to a bolt is tensile, and specifically speaking relates to a high strength bolt stretching device.
Background
At present, bolt stretching adopts general universal testing machine to go on, and conventional bolt stretching connection mode relies on the centre gripping of hydraulic pressure keeping silent, keeps silent the centre gripping bolt rod part through hydraulic pressure or for the bolt rotation sleeve back centre gripping sleeve part stretch, and the bolt hardness is great, and the phenomenon of skidding appears in the testing process easily, causes experimental repeatedly can not succeed, consuming time power to influence the testing result accuracy.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a new high strength bolt stretching device.
The utility model provides a high strength bolt stretching device, including board, frame, first fixed part and second fixed part, the second fixed part set firmly in the board top, the frame supports first fixed part suspension in second fixed part top just first fixed part and second fixed part interval are relative, the second fixed part include the support and set firmly in the screw rod fixed part of support upper surface, the screw rod fixed part includes that one has the internal screw thread blind hole, internal thread and bolt rod portion size match just the bolt passes through the spiral shell and goes into the blind hole with bolt fixed part spiro union.
Preferably, the stent is a trapezoidal stent.
Preferably, the first fixing part is used for fixing the head of the bolt and comprises a hydraulic jaw.
Preferably, the first fixing portion and the second fixing portion are coaxial.
Compared with the prior art, the utility model provides a high strength bolt stretching device includes board, frame, first fixed part and second fixed part, the second fixed part set firmly in the board top, the frame supports first fixed part suspension in second fixed part top just first fixed part and second fixed part interval are relative, the second fixed part include the support and set firmly in the screw rod fixed part of support upper surface, the screw rod fixed part includes one and has the internal screw thread blind hole, internal thread and bolt pole portion size match just the bolt passes through the spiral shell and goes into the blind hole with bolt fixed part spiro union. Through the hard connection between second fixed part and the screw rod, the emergence of the phenomenon of skidding has been avoided.
Drawings
Fig. 1 is the utility model provides a high strength bolt stretching device's schematic structure diagram.
Detailed Description
The present invention will be further explained with reference to the drawings and the embodiments.
Please refer to fig. 1. The utility model provides a new high strength bolt stretching device 100 includes board 1, frame 2, first fixed part 3 and second fixed part 4.
The second fixing portion 4 is fixedly arranged at the top end of the machine table 1, the frame 2 supports the first fixing portion 3 to be suspended at the top of the second fixing portion 4, and the first fixing portion 3 and the second fixing portion 4 are opposite at intervals.
The second fixing portion 4 comprises a bracket 41 and a screw fixing portion 42 fixedly arranged on the upper surface of the bracket 41, the screw fixing portion 42 comprises a blind hole 40 with internal threads, the sizes of the internal threads and the bolt rod portion are matched, and the bolt is screwed into the blind hole 40 and the bolt fixing portion 42.
The bracket 41 is a trapezoidal bracket.
The first fixing part 3 is used for fixing the head of the bolt and comprises a hydraulic jaw.
In the present embodiment, the first fixing portion 3 and the second fixing portion 4 are coaxial.
When the hydraulic clamp is used, the rod part of the bolt is screwed into the blind hole 40 and the bolt fixing part 42, the bolt head is clamped by the hydraulic clamp jaw, and then the bolt is stretched.
Compared with the prior art, the utility model provides a high strength bolt stretching device includes board, frame, first fixed part and second fixed part, the second fixed part set firmly in the board top, the frame supports first fixed part suspension in second fixed part top just first fixed part and second fixed part interval are relative, the second fixed part include the support and set firmly in the screw rod fixed part of support upper surface, the screw rod fixed part includes one and has the internal screw thread blind hole, internal thread and bolt pole portion size match just the bolt passes through the spiral shell and goes into the blind hole with bolt fixed part spiro union. Through the hard connection between second fixed part and the screw rod, the emergence of the phenomenon of skidding has been avoided.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.
Claims (4)
1. The utility model provides a high strength bolt stretching device, its characterized in that includes board, frame, first fixed part and second fixed part, the second fixed part set firmly in the board top, the frame supports first fixed part suspension in second fixed part top just first fixed part and second fixed part interval are relative, the second fixed part include the support with set firmly in the screw rod fixed part of support upper surface, the screw rod fixed part includes that one has the internal screw thread blind hole, internal thread and bolt rod portion size match just the bolt passes through the spiral shell income the blind hole with bolt fixed part spiro union.
2. The high strength bolt tensioning device of claim 1, wherein the bracket is a trapezoidal bracket.
3. The high strength bolt tensioning device of claim 1, wherein the first anchor portion is configured to anchor a bolt head and comprises a hydraulic jaw.
4. The high strength bolt tensioning apparatus according to claim 1, wherein the first and second securing portions are concentric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920845782.7U CN209878306U (en) | 2019-06-05 | 2019-06-05 | High strength bolt stretching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920845782.7U CN209878306U (en) | 2019-06-05 | 2019-06-05 | High strength bolt stretching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209878306U true CN209878306U (en) | 2019-12-31 |
Family
ID=68948384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920845782.7U Active CN209878306U (en) | 2019-06-05 | 2019-06-05 | High strength bolt stretching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209878306U (en) |
-
2019
- 2019-06-05 CN CN201920845782.7U patent/CN209878306U/en active Active
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |