CN219725978U - Positioning device for rapidly positioning asphalt mixture cylinder test piece - Google Patents
Positioning device for rapidly positioning asphalt mixture cylinder test piece Download PDFInfo
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- CN219725978U CN219725978U CN202321361772.9U CN202321361772U CN219725978U CN 219725978 U CN219725978 U CN 219725978U CN 202321361772 U CN202321361772 U CN 202321361772U CN 219725978 U CN219725978 U CN 219725978U
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- 238000012360 testing method Methods 0.000 title claims abstract description 45
- 239000010426 asphalt Substances 0.000 title claims abstract description 22
- 239000000203 mixture Substances 0.000 title claims abstract description 21
- 238000012856 packing Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses a positioning device for quickly positioning an asphalt mixture cylinder test piece, which comprises an arc piece, wherein a vertical groove is formed in the inner wall of the arc piece, and a cross-shaped positioning guide piece is positioned in the vertical groove; the cross guide piece is in sliding connection with the through hole groove on the positioning guide piece; the arc-shaped positioning sliding sheets are in sliding connection with the arc-shaped sheets through longitudinal through hole grooves at the two ends of the arc-shaped sheets; a circular gasket component is also fixed below the circular arc piece; the inner wall and the outer wall of the arc piece and the positioning guide piece are provided with scale marks. The utility model solves the problems of slow positioning efficiency, inaccurate positioning and inaccurate test data in the prior art.
Description
Technical Field
The utility model belongs to the technical field of positioning devices, and relates to a positioning device for quickly positioning an asphalt mixture cylinder test piece.
Background
The asphalt mixture is a composite material, and mainly comprises asphalt, coarse aggregate, fine aggregate, mineral powder, polymer and wood cellulose; these materials of different mass and quantity are mixed to form different structures and have different mechanical properties. The cleavage test is one of the ways to detect the physical properties of asphalt mixtures. The splitting test is to put an upper packing strip and a lower packing strip in the diameter direction of a cylindrical test piece, apply relative linear load to cause the two packing strips to break along the diameter direction of the test piece, and measure the tensile strength of the test piece. The cylindrical test pieces in the splitting test are standard pieces, and the sizes are the same. For scientific research, cutting is required to be carried out in the circumferential direction of the asphalt mixture cylinder test piece so as to obtain a loading plane; meanwhile, strain gauges are adhered to the specified positions and placed at the specified positions of the specified mechanical loading platform.
The asphalt mixture test piece positioning technology commonly used in the prior art often adopts a ruler length to perform simple positioning, so that the positioning efficiency is low, the positioning is inaccurate, and finally, the test data is problematic. Therefore, a positioning device for rapidly positioning an asphalt mixture cylinder test piece is needed to solve the above problems.
Disclosure of Invention
In order to achieve the purpose, the utility model provides the positioning device for rapidly positioning the asphalt mixture cylinder test piece, which solves the problems of low positioning efficiency, inaccurate positioning and inaccurate test data in the prior art.
In order to solve the technical problems, the utility model adopts the technical scheme that the positioning device for rapidly positioning the asphalt mixture cylinder test piece comprises an arc piece, wherein the inner wall of the arc piece is provided with a vertical groove, and a cross-shaped positioning guide piece is positioned in the vertical groove; the cross guide piece is in sliding connection with the through hole groove on the positioning guide piece; the arc-shaped positioning sliding sheets are in sliding connection with the arc-shaped sheets through longitudinal through hole grooves at the two ends of the arc-shaped sheets; a circular gasket component is also fixed below the circular arc piece; the inner wall and the outer wall of the arc piece and the positioning guide piece are provided with scale marks.
Further, the circular gasket assembly comprises a circular gasket, the circular gasket is fixed under the circular arc piece, 4 threaded holes are formed in the lower portion of the circular gasket, the threaded holes are arranged in a square mode, and the bolt heads of bolts are downwards installed in the threaded holes; the upper surface of the round gasket is provided with horizontal bubbles.
Further, a first stud is fixed at the center of the cross guide piece and is positioned in a through hole groove on the positioning guide piece; the first stud and the positioning guide piece are fixed through a positioning nut.
Further, the device also comprises a strain gauge positioning device; the strain gauge positioning device comprises a positioning rail, wherein the positioning rail is arranged in a vertical groove of the circular arc sheet, and the sliding sheet is connected with a through hole groove on the positioning rail through a fixing bolt; and scale marks are arranged on the positioning track.
Further, second studs are arranged at two ends of the positioning sliding sheet and are positioned in longitudinal through hole grooves at two ends of the circular arc sheet, and the second studs and the circular arc sheet are fixed through fastening nuts.
The beneficial effects of the utility model are as follows:
the circle center, the diameter and the cutting line of the asphalt mixture cylinder can be rapidly and accurately positioned; the attaching position of the strain gauge of the test piece can be quickly and accurately positioned; the flatness of the asphalt mixture cylinder plane can be rapidly and accurately checked.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a top view of a positioning device according to an embodiment of the present utility model.
Fig. 2 is a front view of a positioning device according to an embodiment of the present utility model.
Fig. 3 is a schematic view of an installation of a strain gage positioning device according to an embodiment of the utility model.
FIG. 4 is a schematic view of a circular gasket assembly according to an embodiment of the present utility model.
Fig. 5 is a front view of a circular gasket assembly according to an embodiment of the present utility model.
In the figure, the arc piece is 1, the positioning guide piece is 2, the cross guide piece is 3, the positioning nut is 4, the positioning sliding piece is 5, the fastening nut is 6, the sliding piece is 7, the positioning track is 8, the fixing bolt is 9, the circular gasket is 10, the horizontal bubble is 11, and the bolt is 12.
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.
As shown in fig. 1-5, the utility model provides a positioning device for rapidly positioning an asphalt mixture cylinder test piece, which comprises an arc piece 1, wherein the inner wall of the arc piece 1 is provided with a vertical groove for installing a positioning guide piece 2 and a strain gauge positioning device, the positioning guide piece 2 and the strain gauge positioning device can slide in the vertical groove in a sliding manner, and the positioning guide piece 2 is used for judging the planeness of two end planes of the test piece; the positioning guide piece 2 is provided with a cross through hole groove, so that the circle center of the test piece and the diameters of the two mutually perpendicular parts can be conveniently determined; and be convenient for cross guide piece 3 slide from top to bottom left and right in location guide piece 2 top, through sliding cross guide piece 3, the arbitrary position of test piece can be fixed a position fast, the cutting line of test piece is drawn to the rethread ruler. The arc-shaped positioning sliding sheet 5 is in sliding connection with the arc-shaped sheet 1 through longitudinal through hole grooves at two ends of the arc-shaped sheet 1, and is fixed with second studs at two ends of the positioning sliding sheet 5 through a fastening nut 6, and the positioning sliding sheet 5 is used for positioning the longitudinal position of a test piece, so that the test piece can be positioned in a mechanical loading platform quickly; the circular gasket assembly is further fixed below the circular arc piece 1 and used for adjusting levelness of the circular arc piece 1 and a test piece.
In some embodiments, the circular gasket assembly comprises a circular gasket 10, the circular gasket 10 is fixed under the circular arc piece 1, 4 threaded holes are arranged under the circular gasket 10, a square arrangement is formed between the threaded holes, the bolts 12 are installed in the threaded holes, the length of the bolts 12 penetrating into the threaded holes can be adjusted to adjust the levelness of the circular gasket 10, on the basis of the levelness of the circular gasket 10, the circular arc piece 1 positioned right above the circular gasket 10 is also kept level, and then a test piece positioned inside the circular arc piece 1 is also kept level. The upper surface of the circular gasket 10 is provided with horizontal bubbles 11 for observing whether the circular gasket 10 is horizontal.
In some embodiments, the strain gauge positioning device comprises a sliding sheet 7, a positioning rail 8 and a fixing bolt 9, wherein the positioning rail 8 is arranged in a vertical groove of the arc piece 1, and the sliding sheet 7 is connected with a through hole groove on the positioning rail 8 through the fixing bolt 9; the slide 7 can slide along the through-hole groove of the positioning rail 8 by the fixing bolt 9. The position of the strain gauge is determined by sliding the sliding vane 7 and by positioning the scale on the track 8, and then the strain gauge is fixed on the test piece by pasting.
In some embodiments, a first stud is fixed at the center of the cross guide piece 3, the cross guide piece 3 is fixed in a through hole groove of the positioning guide piece 2 through the positioning nut 4, and the positioning nut 4 is only required to be unscrewed when the cross guide piece 3 needs to be moved.
In some embodiments, the inner wall and the outer wall of the circular arc sheet 1 are engraved with longitudinal graduation marks, and the positioning guide sheet 2 is also provided with graduation marks.
The working process of the utility model is as follows:
firstly, the levelness of the circular gasket 10 is adjusted by observing horizontal bubbles and adjusting the length of the bolt 12 penetrating into the threaded hole, so that the asphalt mixture cylinder test piece can be horizontally placed; placing an asphalt mixture cylinder test piece in the circular arc piece 1, ensuring that the outer wall of the test piece is tightly attached to the inner wall of the circular arc piece 1, and judging the height of the test piece through scale marks in the circular arc piece 1; placing a positioning guide piece 2 along a groove of the circular arc piece 1, tightly attaching the positioning guide piece 2 to a test piece, rapidly judging the planeness of the plane of the test piece, and rapidly drawing two mutually perpendicular diameters and circle centers of the test piece through a cross through hole groove of the positioning guide piece 2; fixing the cross guide piece 3 in the notch of the positioning guide piece 2 by using a positioning nut 4, rapidly positioning any position of the test piece by sliding scales of the cross guide piece 3 and the cross notch of the positioning guide piece 2, and drawing a cutting line of the test piece by using a ruler; the positioning sliding sheet 5 is fixed on the circular arc sheet 1 by the fastening nut 6, and the vertical position of the test piece is positioned by sliding the vertical scales on the positioning sliding sheet 5 and the circular arc sheet 1, so that the positioning in the mechanical loading platform is convenient and quick; the positioning guide piece 2 is removed, the positioning rail 8 is replaced, the sliding piece 7 slides along the through hole groove of the positioning rail 8 through the fixing bolt 9, then the fixing bolt 9 is used for fastening, and the strain gauge is installed in the sliding piece 7. After the strain gauge is installed, the device is removed in the reverse order of the installation.
In this specification, each embodiment is described in a related manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments.
The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model are included in the protection scope of the present utility model.
Claims (5)
1. The positioning device for rapidly positioning the asphalt mixture cylinder test piece is characterized by comprising an arc piece (1), wherein a vertical groove is formed in the inner wall of the arc piece (1), and a cross-shaped positioning guide piece (2) is positioned in the vertical groove; the cross guide piece (3) is in sliding connection with the through hole groove on the positioning guide piece (2); the arc-shaped positioning sliding sheet (5) is in sliding connection with the arc-shaped sheet (1) through longitudinal through hole grooves at the two ends of the arc-shaped sheet (1); a circular gasket component is also fixed below the circular arc piece (1); the inner wall and the outer wall of the circular arc sheet (1) and the positioning guide sheet (2) are provided with scale marks.
2. The positioning device for quickly positioning an asphalt mixture cylinder test piece according to claim 1, wherein the circular gasket assembly comprises a circular gasket (10), the circular gasket (10) is fixed under the circular arc piece (1), 4 threaded holes are formed under the circular gasket (10), the threaded holes are arranged in a square manner, and the bolt heads of bolts (12) are downwards arranged in the threaded holes; the upper surface of the round gasket (10) is provided with horizontal bubbles (11).
3. The positioning device for quickly positioning an asphalt mixture cylinder test piece according to claim 1, wherein a first stud is fixed at the center of the cross guide piece (3), and the first stud is positioned in a through hole groove on the positioning guide piece (2); the first stud and the positioning guide piece (2) are fixed through a positioning nut (4).
4. The positioning device for quickly positioning an asphalt mixture cylinder test piece according to claim 1, further comprising a strain gauge positioning device; the strain gauge positioning device comprises a positioning track (8), wherein the positioning track (8) is arranged in a vertical groove of the arc piece (1), and the sliding piece (7) is connected with a through hole groove on the positioning track (8) through a fixing bolt (9); and scale marks are arranged on the positioning track (8).
5. The positioning device for quickly positioning the asphalt mixture cylinder test piece according to claim 1, wherein second studs are arranged at two ends of the positioning slide piece (5), the second studs are positioned in longitudinal through hole grooves at two ends of the arc piece (1), and the second studs are fixed with the arc piece (1) through fastening nuts (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321361772.9U CN219725978U (en) | 2023-05-31 | 2023-05-31 | Positioning device for rapidly positioning asphalt mixture cylinder test piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321361772.9U CN219725978U (en) | 2023-05-31 | 2023-05-31 | Positioning device for rapidly positioning asphalt mixture cylinder test piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219725978U true CN219725978U (en) | 2023-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321361772.9U Active CN219725978U (en) | 2023-05-31 | 2023-05-31 | Positioning device for rapidly positioning asphalt mixture cylinder test piece |
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| CN (1) | CN219725978U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116577221A (en) * | 2023-04-10 | 2023-08-11 | 湖南建工交通建设有限公司 | Asphalt mixture splitting fatigue test method for ensuring first splitting at circle center |
-
2023
- 2023-05-31 CN CN202321361772.9U patent/CN219725978U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116577221A (en) * | 2023-04-10 | 2023-08-11 | 湖南建工交通建设有限公司 | Asphalt mixture splitting fatigue test method for ensuring first splitting at circle center |
| CN116577221B (en) * | 2023-04-10 | 2024-08-16 | 湖南建工交通建设有限公司 | Asphalt mixture splitting fatigue test method for ensuring first splitting at circle center |
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