CN220982880U - Anchor rod steel nut assembly bearing capacity coefficient detection device - Google Patents
Anchor rod steel nut assembly bearing capacity coefficient detection device Download PDFInfo
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- CN220982880U CN220982880U CN202322935863.5U CN202322935863U CN220982880U CN 220982880 U CN220982880 U CN 220982880U CN 202322935863 U CN202322935863 U CN 202322935863U CN 220982880 U CN220982880 U CN 220982880U
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- centering
- nut
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 12
- 239000010959 steel Substances 0.000 title claims abstract description 12
- 238000001514 detection method Methods 0.000 title claims abstract description 5
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 230000000149 penetrating effect Effects 0.000 claims description 9
- 238000009864 tensile test Methods 0.000 abstract description 12
- 238000012360 testing method Methods 0.000 abstract description 6
- 230000008859 change Effects 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000002436 steel type Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000010998 test method Methods 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 bearing capacity coefficient detection device of an anchor rod steel nut assembly, which comprises a jaw, a supporting mechanism, a nut and a centering clamping collar, wherein the upper end of the supporting mechanism is connected with the jaw, and the lower end of the supporting mechanism is connected with one end of an anchor rod body through the nut and the centering clamping collar; the supporting mechanism comprises two half supporting pieces, the two half supporting pieces are spliced and buckled together, the half supporting pieces comprise half clamping columns and half clamping ring columns, and the half clamping columns are integrally formed at the upper ends of the half clamping ring columns; the lower end of the semi-clamping ring column clamps the centering clamping lantern ring, and the anchor rod penetrates through the threaded section at the upper part of the centering clamping lantern ring and is connected with a nut. The device comprises supporting mechanism and centering centre gripping lantern ring, through experimental frock, will directly grasp the body of rod afterbody screw thread section and change into the experimental frock of centre gripping to realize both ends centre gripping, obtain accurate test result, stock body of rod is stable and can not appear crookedly during tensile test, tensile test's result is more accurate.
Description
Technical Field
The utility model relates to the field of metallurgy, in particular to a device for detecting the bearing capacity coefficient of an anchor rod steel nut assembly.
Background
When the bearing efficiency coefficient of the nut assembly of the anchor rod steel is required to be tested in the MT146.2 resin anchor rod metal rod body and accessories thereof, the requirement is not lower than 0.95, the supporting nut is completely screwed into the threaded section at the tail part of the rod body by adopting the strong screw steel type test method and the like, the exposed part is larger than 25mm, and the bearing capacity of the screw thread and the nut assembly at the tail part of the rod body is tested by using a universal material tester or an anchor rod tension meter. The measured average value of the bearing efficiency coefficient (eta) = (the bearing capacity of the tail screw thread and the nut assembly)/the maximum force of the rod body parent metal is more than or equal to 0.95.
Because the quality objection of the right-handed thread rib anchor rod leads to goods returning and can not meet the requirement of MT146.2 standard bearing capacity coefficient, the on-site tensile testing machine can not directly stretch to test the bearing efficiency coefficient of the anchor rod nut.
Because the screw-thread steel type resin anchor rod metal rod body is when testing the bearing capacity of the threaded nut assembly at the tail part of the rod body, a tensile test machine clamp can not be directly clamped on the nut to carry out tensile test, otherwise, the risk of slipping and pulling off of a jaw easily occurs during the tensile test of the clamp clamping nut, and in addition, when the clamp clamping nut is subjected to tensile test, the bearing coefficient of the nut assembly can not be directly reflected due to the existence of clamping force, and the direct tensile test belongs to an invalid test.
Disclosure of Invention
In view of the above, an object of the present utility model is to provide a device for detecting a bearing capacity coefficient of an anchor rod steel nut assembly, so as to solve the above-mentioned problems.
In order to achieve the above purpose, the following technical scheme is adopted:
the bearing capacity coefficient detection device of the anchor rod steel nut assembly comprises a jaw, a supporting mechanism, a nut and a centering clamping collar, wherein the upper end of the supporting mechanism is connected with the jaw, and the lower end of the supporting mechanism is connected with one end of an anchor rod body through the nut and the centering clamping collar;
The supporting mechanism comprises two half supporting pieces, the two half supporting pieces are spliced and buckled together, the half supporting pieces comprise half clamping columns and half clamping ring columns, the half clamping columns are integrally formed at the upper ends of the half clamping ring columns, and the two half clamping ring columns are spliced and buckled and are hollow in the middle;
The lower end of the semi-clamping ring column clamps the centering clamping collar, the upper end of the centering clamping collar is clamped in the cavity of the semi-clamping ring column, the centering clamping collar is internally provided with an anchor rod body in a penetrating manner, the anchor rod body is connected with a nut on a threaded section of the upper portion of the centering clamping collar in a penetrating manner, and the nut is pressed on the upper portion of the centering clamping collar.
As a further improvement of the utility model, two half clamping columns are provided with corresponding through holes in a penetrating way and are used for connecting and fixing the splicing buckling of the two half clamping columns through bolts.
As a further improvement of the utility model, the joint of the side walls of the two half clamping ring posts is tooth staggered joint, and the joint of the upper end and the lower end of the half clamping ring post is fixedly connected through bolts.
As a further improvement of the utility model, the centering clamping collar is of a T-shaped structure, the upper end of the centering clamping collar is clamped in the cavity spliced by the two half clamping ring posts, and the lower end of the centering clamping collar downwards extends out of the cavity spliced by the two half clamping ring posts.
The beneficial effects of the utility model are as follows:
The device simple structure, design benefit comprises supporting mechanism and centering centre gripping lantern ring, through experimental frock, will directly grasp the body of rod afterbody screw thread section and change into the experimental frock of centre gripping to realize both ends centre gripping, obtain accurate test result, stock body of rod is stable and can not appear crookedly during tensile test, tensile test's result is more accurate.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
FIG. 1 is a schematic diagram of the structure of the present utility model;
Fig. 2 is a schematic structural view of a supporting mechanism in the present utility model.
Detailed Description
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.
In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
Referring to fig. 1-2, a device for detecting the bearing capacity coefficient of an anchor rod steel nut assembly comprises a jaw 1, a supporting mechanism 2, a nut 3 and a centering clamping collar 4, wherein the upper end of the supporting mechanism 2 is connected with the jaw 1, and the lower end of the supporting mechanism 2 is connected with one end of an anchor rod body 5 through the nut 3 and the centering clamping collar 4;
The supporting mechanism 2 comprises two half supporting pieces 21, the two half supporting pieces 21 are spliced and buckled together, the half supporting pieces 21 comprise half clamping columns 211 and half clamping ring columns 212, the half clamping columns 211 are integrally formed at the upper ends of the half clamping ring columns 212, and the two half clamping ring columns 212 are spliced and buckled and are provided with a cavity in the middle;
The centering clamping collar 4 is clamped at the lower end of the half clamping ring column 212, the upper end of the centering clamping collar 4 is clamped in the cavity of the half clamping ring column 212, the anchor rod body 5 is arranged in the centering clamping collar 4 in a penetrating mode, the anchor rod body 5 is connected with the nut 3 on a threaded section of the upper portion of the centering clamping collar 4 in a penetrating mode, the nut 3 is pressed on the upper portion of the centering clamping collar 4, and the lower end of the anchor rod body 5 is clamped on the tensile testing machine.
Corresponding through holes 213 are formed in the two half clamping columns 211 in a penetrating manner and are used for fixedly connecting the two half clamping columns 211 through bolts; the joint of the side walls of the two half clamping ring columns 212 is a tooth staggered joint, and the joint of the upper ends and the lower ends of the half clamping ring columns 212 is fixedly connected through bolts.
The centering clamping collar 4 is of a T-shaped structure, the upper end of the centering clamping collar 4 is clamped in a cavity spliced by the two half clamping ring posts 212, and the lower end of the centering clamping collar 4 downwards extends out of the cavity spliced by the two half clamping ring posts 212.
Through experimental frock, with direct centre gripping body of rod afterbody screw thread section conversion for centre gripping experimental frock to realize both ends centre gripping, obtain accurate test result, stock body of rod 5 is stable and can not appear crookedly during tensile test.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (4)
1. The bearing capacity coefficient detection device of the anchor rod steel nut assembly comprises a jaw and is characterized by further comprising a supporting mechanism, a nut and a centering clamping sleeve ring, wherein the upper end of the supporting mechanism is connected with the jaw, and the lower end of the supporting mechanism is connected with one end of an anchor rod body through the nut and the centering clamping sleeve ring;
The supporting mechanism comprises two half supporting pieces, the two half supporting pieces are spliced and buckled together, the half supporting pieces comprise half clamping columns and half clamping ring columns, the half clamping columns are integrally formed at the upper ends of the half clamping ring columns, and the two half clamping ring columns are spliced and buckled and are hollow in the middle;
The lower end of the semi-clamping ring column clamps the centering clamping collar, the upper end of the centering clamping collar is clamped in the cavity of the semi-clamping ring column, the centering clamping collar is internally provided with an anchor rod body in a penetrating manner, the anchor rod body is connected with a nut on a threaded section of the upper portion of the centering clamping collar in a penetrating manner, and the nut is pressed on the upper portion of the centering clamping collar.
2. The device for detecting the bearing capacity coefficient of the anchor rod steel nut assembly according to claim 1, wherein corresponding through holes are formed in the two half clamping columns in a penetrating mode and are used for fixedly connecting and buckling the two half clamping columns through bolts.
3. The device for detecting the bearing capacity coefficient of the anchor rod steel nut assembly according to claim 2, wherein the joint of the side walls of the two semi-clamping ring columns is a tooth staggered joint, and the joint of the upper end and the lower end of the semi-clamping ring columns is fixedly connected through bolts.
4. A device for detecting the bearing capacity coefficient of an anchor rod steel nut assembly according to claim 3, wherein the centering clamping collar is of a T-shaped structure, the upper end of the centering clamping collar is clamped in the cavity spliced by the two half clamping ring posts, and the lower end of the centering clamping collar extends downwards out of the cavity spliced by the two half clamping ring posts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322935863.5U CN220982880U (en) | 2023-10-31 | 2023-10-31 | Anchor rod steel nut assembly bearing capacity coefficient detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322935863.5U CN220982880U (en) | 2023-10-31 | 2023-10-31 | Anchor rod steel nut assembly bearing capacity coefficient detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220982880U true CN220982880U (en) | 2024-05-17 |
Family
ID=91036342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322935863.5U Active CN220982880U (en) | 2023-10-31 | 2023-10-31 | Anchor rod steel nut assembly bearing capacity coefficient detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220982880U (en) |
-
2023
- 2023-10-31 CN CN202322935863.5U patent/CN220982880U/en active Active
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