CN219725978U - Positioning device for rapidly positioning asphalt mixture cylinder test piece - Google Patents

Abstract

The utility model discloses a positioning device for rapid positioning of asphalt mixture cylindrical specimens, which includes an arc plate. The inner wall of the arc plate is provided with a vertical groove, and a cross-shaped positioning guide plate is located in the vertical groove; The guide plate is slidingly connected to the through-hole groove on the positioning guide plate; the arc-shaped positioning sliding plate is slidingly connected to the arc-shaped plate through the longitudinal through-hole grooves at both ends of the arc-shaped plate; a circular gasket assembly is also fixed below the arc-shaped plate; The inner and outer walls of the arc blade and the positioning guide blade are provided with scale lines. The utility model solves the problems existing in the prior art of slow positioning efficiency and inaccurate positioning, which ultimately lead to inaccurate test data.

Description

A positioning device for rapid positioning of asphalt mixture cylinder specimens

Technical field

The utility model belongs to the technical field of positioning devices and relates to a positioning device for rapid positioning of asphalt mixture cylinder specimens.

Background technique

Asphalt mixture is a composite material, mainly composed of asphalt, coarse aggregate, fine aggregate, mineral powder, and some also add polymer and wood cellulose; these materials of different quality and quantity are mixed to form different structures. And have different mechanical properties. Splitting test is one of the ways to detect the physical properties of asphalt mixture. The splitting test is to place two pads up and down in the diameter direction of the cylindrical specimen, apply a relative linear load, so that it is destroyed along the diameter direction of the specimen, and the tensile strength of the specimen is measured. The cylindrical specimens in the splitting test are standard parts with the same dimensions. For scientific research purposes, it is necessary to cut the asphalt mixture cylinder specimen in the circumferential direction to obtain a loading plane; at the same time, the strain gauge must be pasted at the specified position and placed at the position specified by the specified mechanical loading platform.

The commonly used asphalt mixture specimen positioning technology in the prior art often uses ruler length for simple positioning, which results in slow positioning efficiency, inaccurate positioning, and ultimately leads to problems with test data. Therefore, a positioning device for rapid positioning of asphalt mixture cylinder specimens is needed to solve the above problems.

Contents of the invention

In order to achieve the above purpose, the utility model provides a positioning device for rapid positioning of asphalt mixture cylindrical specimens, which solves the problems in the existing technology of slow positioning efficiency, inaccurate positioning, and ultimately inaccurate test data.

In order to solve the above technical problems, the technical solution adopted by this utility model is a positioning device for rapid positioning of asphalt mixture cylindrical specimens, which includes an arc plate. The inner wall of the arc plate has vertical grooves and a cross-shaped The positioning guide plate is located in the vertical groove; the cross guide plate is slidingly connected to the through-hole groove on the positioning guide plate; the arc-shaped positioning slide plate is slidingly connected to the arc plate through the longitudinal through-hole grooves at both ends of the arc plate; the arc plate A circular gasket component is also fixed below; the inner and outer walls of the arc sheet and the positioning guide sheet are provided with scale lines.

Further, the circular gasket assembly includes a circular gasket, which is fixed directly below the arc plate. Four threaded holes are provided below the circular gasket. The threaded holes are arranged in a square shape, and the bolts are arranged in a square shape. The bolt head is installed downward in the threaded hole; horizontal bubbles are provided on the upper surface of the circular gasket.

Further, a first stud is fixed at the center of the cross guide piece, and the first stud is located in the through-hole groove on the positioning guide piece; the first stud and the positioning guide piece are fixed by a positioning nut.

Further, it also includes a strain gauge positioning device; the strain gauge positioning device includes a positioning rail, the positioning rail is installed in the vertical groove of the arc plate, and the sliding plate is connected to the through-hole groove on the positioning rail through fixing bolts; so The positioning track is provided with scale marks.

Further, second studs are provided at both ends of the positioning slide. The second studs are located in the longitudinal through-hole grooves at both ends of the arc plate. The second studs and the arc plate are fastened by Nut fixation.

The beneficial effects of this utility model are:

It can quickly and accurately locate the center, diameter and cutting line of the asphalt mixture cylinder; it can quickly and accurately locate the location where the strain gauge of the specimen is pasted; it can quickly and accurately inspect the flatness of the asphalt mixture cylinder plane.

Description of the drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description These are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting creative efforts.

Figure 1 is a top view of the positioning device according to the embodiment of the present invention.

Figure 2 is a front view of the positioning device according to the embodiment of the present invention.

Figure 3 is a schematic diagram of the installation of the strain gauge positioning device according to the embodiment of the present invention.

Figure 4 is a schematic diagram of a circular gasket assembly according to an embodiment of the present invention.

Figure 5 is a front view of the circular gasket assembly according to the embodiment of the present invention.

In the figure, 1. Arc piece, 2. Positioning guide piece, 3. Cross guide piece, 4. Positioning nut, 5. Positioning slide piece, 6. Fastening nut, 7. Slide piece, 8. Positioning track, 9. Fixing bolt, 10. Round gasket, 11. Horizontal bubble, 12. Bolt.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all implementations. example. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

As shown in Figures 1 to 5, the utility model provides a positioning device for rapid positioning of asphalt mixture cylindrical specimens, including an arc plate 1. The inner wall of the arc plate 1 is provided with a vertical groove for installation. The positioning guide 2 and the strain gauge positioning device can slide in the vertical groove. The positioning guide 2 is used to judge the flatness of the planes at both ends of the specimen; the positioning guide 2 is on There is a cross through hole slot, which is convenient for determining the center of the circle of the test piece and two mutually perpendicular diameters; and it is convenient for the cross guide plate 3 to slide up, down, left and right above the positioning guide plate 2. By sliding the cross guide plate 3, the test piece can be quickly positioned. At any position, draw the cutting line of the specimen through the ruler. The arc-shaped positioning slide 5 is slidably connected to the arc plate 1 through the longitudinal through-hole grooves at both ends of the arc plate 1, and is fixed to the second studs at both ends of the positioning slide 5 through fastening nuts 6. The positioning slide 5 It is used to locate the longitudinal position of the test piece to facilitate rapid positioning in the mechanical loading platform; a circular gasket assembly is also fixed under the arc piece 1 to adjust the level of the arc piece 1 and the test piece.

In some embodiments, the circular gasket assembly includes a circular gasket 10. The circular gasket 10 is fixed directly below the arc plate 1. Four threaded holes are provided below the circular gasket 10, and there are 4 threaded holes between the threaded holes. Arranged in a square shape, the bolts 12 are installed in the threaded holes. The horizontality of the circular gasket 10 can be adjusted by adjusting the length of the bolts 12 into the threaded holes. On the basis of the level of the circular gasket 10, it is located directly on the circular gasket 10. The upper arc plate 1 also remains horizontal, and the specimen located inside the arc plate 1 also remains horizontal. A horizontal bubble 11 is provided on the upper surface of the circular gasket 10 for observing whether the circular gasket 10 is horizontal.

In some embodiments, the strain gauge positioning device includes a sliding plate 7, a positioning rail 8, and a fixing bolt 9. The positioning rail 8 is installed in the vertical groove of the arc plate 1. The sliding plate 7 is connected to the positioning rail through the fixing bolt 9. 8; the sliding piece 7 can slide along the through-hole groove of the positioning track 8 through the fixing bolt 9. By sliding the slide 7, determine the position of the strain gauge through the scale on the positioning track 8, and then fix the strain gauge on the specimen by pasting it.

In some embodiments, a first stud is fixed at the center of the cross guide plate 3, and the cross guide plate 3 is fixed in the through-hole groove of the positioning guide plate 2 through the positioning nut 4. When you need to move the cross guide plate 3, you only need to tighten it. Just loosen the positioning nut 4.

In some embodiments, longitudinal scale lines are engraved on both the inner and outer walls of the arc plate 1 , and the positioning guide plate 2 is also provided with scale lines.

The working process of this utility model is:

First, adjust the horizontality of the circular gasket 10 by observing the horizontal bubbles and adjusting the length of the bolt 12 into the threaded hole to ensure that the asphalt mixture cylinder specimen can be placed horizontally; place the asphalt mixture cylinder specimen on the arc In piece 1, ensure that the outer wall of the test piece is in close contact with the inner wall of arc piece 1, and then judge the height of the specimen through the scale line in arc piece 1; place positioning guide 2 along the groove of arc piece 1, and place the positioning guide 2. Closely adhere to the test piece, quickly judge the flatness of the plane of the test piece, and quickly draw the two mutually perpendicular diameters and center of the circle through the cross hole slot of the positioning guide plate 2; use the positioning nut 4 to secure the cross guide plate 3 is fixed in the groove of the positioning guide 2, quickly locate any position of the specimen by sliding the cross guide 3 and the scale of the cross groove of the positioning guide 2, and use a ruler to draw the cutting line of the specimen; slide the positioning slide The piece 5 is fixed on the arc piece 1 with a fastening nut 6. By sliding the positioning slide 5 and the vertical scale on the arc piece 1, the vertical position of the specimen is positioned to facilitate rapid positioning in the mechanical loading platform; dismantle Remove the positioning guide plate 2 and replace it with the positioning rail 8. Slide the slide plate 7 along the through-hole groove of the positioning rail 8 through the fixing bolt 9, and then tighten it with the fixing bolt 9 to install the strain gauge in the slide plate 7. After installing the strain gauge, remove the device in the reverse order of installation.

Each embodiment in this specification is described in a related manner. The same and similar parts between the various embodiments can be referred to each other. Each embodiment focuses on its differences from other embodiments.

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles 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).