CN211148251U - Integrated wedging and pulling test force transmission device - Google Patents
Integrated wedging and pulling test force transmission device Download PDFInfo
- Publication number
- CN211148251U CN211148251U CN201921429714.9U CN201921429714U CN211148251U CN 211148251 U CN211148251 U CN 211148251U CN 201921429714 U CN201921429714 U CN 201921429714U CN 211148251 U CN211148251 U CN 211148251U
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- load sensor
- wedge
- cylinder
- loading frame
- shaped loading
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- 238000012360 testing method Methods 0.000 title claims abstract description 35
- 230000005540 biological transmission Effects 0.000 title claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 238000003466 welding Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 1
- 238000013001 point bending Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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Abstract
The utility model discloses an integral type wedges splits and draws experimental force transfer device belongs to physical test technical field. The utility model comprises a load sensor upper support used for connecting the press machine and the load sensor, a load sensor lower support used for connecting the load sensor and the wedge-shaped loading frame, and the wedge-shaped loading frame; the load sensor upper support comprises a cylinder, a transverse round hole is formed in the upper portion of the cylinder, the diameter of the lower portion of the cylinder is larger than that of the upper portion of the cylinder, and an upper nut with internal threads is fixed to the bottom of the cylinder; the lower support of the load sensor is of a disc structure, a lower nut with internal threads is fixed on a disc, a hole is formed in the position, corresponding to the lower support of the load sensor, of the wedge-shaped loading frame, and the wedge-shaped loading frame and the lower support of the load sensor are connected through a bolt. The utility model discloses can simplify and wedge into split and draw experimental step, reduce experimental error, improve experimental accuracy.
Description
Technical Field
The utility model relates to an integral type wedges splits and draws experimental power transmission device belongs to physical test technical field.
Background
At present, the wedge splitting method is the mainstream test method for concrete fracture parameters (mainly comprising toughness, fracture energy and the like) at present, is simple to operate and easy to analyze, and has unique advantages compared with a compact stretching method and a three-point bending beam method.
However, the conventional wedge-type splitting apparatus has many disadvantages and is cumbersome. For example, a cross beam, a load sensor and a wedge-shaped loading frame of a test press are not fixedly connected, and are still placed on a concrete sample step by step in a human-assumed manner, so that certain errors exist in the test data, and the test is inconvenient due to the fact that the process is complicated; for the test piece with the early age and the large seam height ratio, when the force transmission plate, the wedge-shaped loading frame and the load sensor are placed on the test piece, the force transmission devices have the weight, so that the peak load of the test piece with the early age and the large seam height ratio is smaller, the internal structure of the test piece is easily damaged before the test is started, and the accuracy of the test is seriously influenced.
Disclosure of Invention
The utility model provides an integral type wedges splits and draws experimental force transfer device for simplify and wedge and draw experimental step, improve experimental accuracy.
The utility model discloses a following technical scheme realizes: the utility model comprises a load sensor upper support 1 used for connecting the press machine and the load sensor, a load sensor lower support 8 used for connecting the load sensor and a wedge-shaped loading frame 9, and a wedge-shaped loading frame 9;
load sensor upper bracket 1 includes a cylinder 3, and the upper portion of cylinder 3 is provided with horizontal round hole 2, and insert tip 5 and fix press and load sensor upper bracket 1 in inserting horizontal round hole 2, and the diameter of 3 lower parts of cylinder is greater than the diameter on 3 upper portions of cylinder, and 3 lower parts of cylinder play the effect of conveying press pressure to load sensor, and the bottom of cylinder 3 is fixed with upper nut 4 of in-band screw thread for tie the load sensor.
The lower support 8 of the load sensor is of a disc structure, a lower nut 6 with internal threads is fixed on the disc and used for fastening the load sensor, a hole is formed in the position, corresponding to the lower support 8 of the load sensor, of the wedge-shaped loading frame 9, the wedge-shaped loading frame and the load sensor are connected through a bolt 7, and therefore the load sensor and the wedge-shaped loading frame 9 are fixed on a cross beam of the press machine, and testing is facilitated.
The wedge-shaped loading frame 9 is designed according to the hydraulic concrete fracture test regulation, and the wedge-shaped loading frame 9 is formed by welding two steel plates, a channel steel and two wedge-shaped steel plates 10.
The utility model has the advantages that:
the utility model discloses the advantage lies in can be fixed in the crossbeam of testing machine with wedging load sensor, the wedge loading frame that draws test device, and usable crossbeam reciprocates, when preparing the experiment, moves the wedge loading frame to suitable position, just with biography power board contact or have a little power, reduces the test piece just atress before experimental beginning, avoids the test piece atress to destroy, increases experimental accuracy.
The utility model discloses the advantage lies in can connecting testing machine crossbeam, load sensor, wedge loading frame in fixed accurate position, makes the center of testing machine crossbeam, load sensor, wedge loading frame on same vertical line, makes experimental power of biography all the same at every turn, reduces experimental error.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic structural view of an upper support and a pin of the load sensor of the present invention;
fig. 3 is a schematic structural view of the lower support of the load sensor of the present invention;
fig. 4 is a schematic structural view of the wedge-shaped loading frame of the present invention;
the reference numbers in the figures are: 1-load sensor upper support, 2-transverse round hole, 3-baffle, 4-upper nut, 5-inserted pin, 6-lower nut, 7-bolt, 8-load sensor lower support, 9-wedge loading frame and 10-wedge steel plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to the scope of the present invention.
Example 1: as shown in fig. 1-4, the present invention comprises a load sensor upper support 1 for connecting a press machine and a load sensor, a load sensor lower support 8 for connecting the load sensor and a wedge-shaped loading frame 9, and a wedge-shaped loading frame 9;
load sensor upper bracket 1 includes a cylinder 3, and the upper portion of cylinder 3 is provided with horizontal round hole 2, and insert tip 5 and fix press and load sensor upper bracket 1 in inserting horizontal round hole 2, and the diameter of 3 lower parts of cylinder is greater than the diameter on 3 upper portions of cylinder, and 3 lower parts of cylinder play the effect of conveying press pressure to load sensor, and the bottom of cylinder 3 is fixed with upper nut 4 of in-band screw thread for tie the load sensor.
The lower support 8 of the load sensor is of a disc structure, a lower nut 6 with internal threads is fixed on the disc and used for fastening the load sensor, a hole is formed in the position, corresponding to the lower support 8 of the load sensor, of the wedge-shaped loading frame 9, the wedge-shaped loading frame and the load sensor are connected through a bolt 7, and therefore the load sensor and the wedge-shaped loading frame 9 are fixed on a cross beam of the press machine, and testing is facilitated.
The wedge-shaped loading frame 9 is designed according to the hydraulic concrete fracture test regulation, and the wedge-shaped loading frame 9 is formed by welding two steel plates, a channel steel and two wedge-shaped steel plates 10.
When the device is used for matching to carry out wedging and splitting tests, the cross beam of the press machine is lifted to a proper position, the upper support 1 of the load sensor is inserted into the connecting device of the press machine, the upper support 1 of the load sensor is rotated to align the transverse round hole 2 with the round hole of the connecting device of the press machine, then the inserting pin 5 is inserted, and the press machine is fixedly connected with the upper support 1 of the load sensor; screwing the load sensor into the upper nut 4 to fixedly connect the upper support 1 of the load sensor with the load sensor; the load sensor lower support 8 is connected and fixed with the load sensor through the lower nut 6, then the wedge-shaped loading frame 9 is connected and fixed with the load sensor lower support 8 through the bolt 7, the wedging of the sleeve into the force transmission device of the split-pull test is completed, and the next step is continuously prepared.
The wedge-in split-draw test support is placed at a proper position of a press machine, two steel rods keep a proper position required by a test, a test piece is placed on the wedge-in split-draw test support, the position of the test piece is adjusted according to the support and reaches a proper position, a force transfer plate is placed in a test piece groove, a clamp type extensometer is clamped on a pre-pasted steel sheet, then a cross beam is lowered by operating the press machine, a wedge-shaped loading frame 9 is lowered to a proper position, a wedge-shaped steel plate 10 just contacts with a force transfer plate pulley and does not generate force, a signal wire of a collection box of a strain gauge is connected, whether all devices are installed in a ready state or not is checked, the test is ready to be completed, and the test is started.
While the present invention has been particularly shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (3)
1. The utility model provides an experimental force transfer device of split pulling is wedged to integral type which characterized in that: the device comprises a load sensor upper support (1) for connecting a press machine and a load sensor, a load sensor lower support (8) for connecting the load sensor and a wedge-shaped loading frame (9), and the wedge-shaped loading frame (9);
the upper support (1) of the load sensor comprises a cylinder (3), a transverse round hole (2) is formed in the upper portion of the cylinder (3), the diameter of the lower portion of the cylinder (3) is larger than that of the upper portion of the cylinder (3), and an upper nut (4) with internal threads is fixed at the bottom of the cylinder (3);
the lower load sensor support (8) is of a disc structure, a lower nut (6) with internal threads is fixed on the disc, a hole is formed in the position, corresponding to the lower load sensor support (8), of the wedge-shaped loading frame (9), and the wedge-shaped loading frame and the lower load sensor support are connected through a bolt (7).
2. The integrated wedging and pulling test force transmission device according to claim 1, characterized in that: the load sensor upper support (1) is fixed with the load sensor through the inserted pin (5), and the inserted pin (5) is inserted into the transverse round hole (2).
3. The integrated wedging and pulling test force transmission device according to claim 1, characterized in that: the wedge-shaped loading frame (9) is formed by welding two steel plates, a channel steel and two wedge-shaped steel plates (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921429714.9U CN211148251U (en) | 2019-08-30 | 2019-08-30 | Integrated wedging and pulling test force transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921429714.9U CN211148251U (en) | 2019-08-30 | 2019-08-30 | Integrated wedging and pulling test force transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211148251U true CN211148251U (en) | 2020-07-31 |
Family
ID=71768251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921429714.9U Expired - Fee Related CN211148251U (en) | 2019-08-30 | 2019-08-30 | Integrated wedging and pulling test force transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211148251U (en) |
-
2019
- 2019-08-30 CN CN201921429714.9U patent/CN211148251U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200731 Termination date: 20210830 |
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| CF01 | Termination of patent right due to non-payment of annual fee |