CN214794195U - Asphalt mixture splitting tester - Google Patents

Abstract

The application relates to the field of asphalt mixture strength test equipment, in particular to an asphalt mixture splitting tester, which comprises a splitting tester body; the splitting tester body is provided with a pressing strip for fixing the position of the test piece; the surface of the pressing strip is provided with a cambered surface convenient for fixing a test piece; the cambered surface is provided with a dragging sheet for abutting the peripheral side of the test piece; the dragging sheet is matched with the cambered surface; the convex surface of the dragging sheet is abutted with the concave surface of the cambered surface. This application has the effect that improves continuous experiment efficiency.

Description

Asphalt mixture splitting tester

Technical Field

The application relates to the field of asphalt mixture strength test equipment, in particular to an asphalt mixture splitting test instrument.

Background

The asphalt mixture splitting tester is an asphalt detecting instrument, is used for determining the mechanical properties of the asphalt mixture in the splitting damage or elastic stage at the specified temperature and loading rate, and can also be used for selecting the mechanical design parameters of the asphalt mixture and evaluating the low-temperature crack resistance of the asphalt mixture in the asphalt pavement structure design. The marshall test pieces are test pieces of a prescribed size made of an asphalt mixture.

In the correlation technique, a marshall test piece splitting strength test device is disclosed, including base and loading system, install the elevating platform on the base, the elevating platform is provided with the anchor clamps that are used for fixed test piece, anchor clamps include loading board and lower loading board, go up through the movable connection of locating lever between loading board and the lower loading board, go up loading board accessible locating lever and be close to or keep away from lower loading board along the rectilinear direction, the layering is installed to symmetry on last loading board and the lower loading board, the surface of layering is the cambered surface, the spherical pressure head that has load sensor is installed to the top of going up the loading board. The load system comprises two pairs of hydraulic systems, one pair of hydraulic systems is used for driving the lifting platform to move, and the other pair of hydraulic systems is used for driving the spherical pressure head to be close to or far away from the upper bearing plate. Before the splitting experiment is carried out, an operator firstly slides the upper bearing plate upwards along the axial direction of the positioning rod until enough space is reserved, a cylindrical Marshall test piece is placed on the cambered surface of the pressing strip of the lower bearing plate so as to be convenient for fixing the test piece, then the upper bearing plate is put down to enable the central lines of the test piece and the two pressing strips to be consistent, then a load system is started, the lifting table is lifted, the test piece is uniformly loaded at a speed required by regulation until the test piece is damaged, the pressure between the spherical pressure head and the upper bearing plate is recorded, and then experimental data can be obtained.

In order to improve the accuracy of experimental data, the inventor thinks that in order to improve the accuracy of experimental data, an operator needs to record data after a plurality of test pieces are split for many times, and after a test piece is damaged, the test piece fragments after being cracked are contained in the arc surface of the lower pressing strip and influence the next experimental result.

SUMMERY OF THE UTILITY MODEL

In order to improve the efficiency of continuous experiment, this application provides an asphalt mixture splitting test appearance.

The application provides a bituminous mixture splitting test appearance adopts following technical scheme:

an asphalt mixture splitting tester comprises a splitting tester body; the splitting tester body is provided with a pressing strip for fixing the position of the test piece; the surface of the pressing strip is provided with a cambered surface convenient for fixing a test piece; the cambered surface is provided with a dragging sheet for abutting the peripheral side of the test piece; the dragging sheet is matched with the cambered surface; the convex surface of the dragging sheet is abutted with the concave surface of the cambered surface.

Through adopting above-mentioned technical scheme, after the experiment at every turn, operating personnel will hold the piece that drags that the test piece fragment was taken out from the layering, change new dragging piece, will new dragging the piece and place in the cambered surface again, alright carry out the experiment of next time, treat experiment many times after, operating personnel alright clean the piece that drags that changes down. The setting of dragging the piece improves the efficiency of continuous experiment, reduces the influence of test piece fragment to experimental data simultaneously, improves the degree of accuracy of experimental result.

Optionally, the cleavage tester body is provided with a base; the upper surface of base can be dismantled and be connected with the receiver that is used for holding the test piece fragment.

Through adopting above-mentioned technical scheme, the operating personnel of being convenient for pours the test piece fragment in the trailer into accomodate with in, and the follow-up test piece fragment to in the containing box of being convenient for is unified to be handled, improves operation environment's clean and tidy, improves test piece fragment's clean efficiency simultaneously.

Optionally, the storage box is used for inserting the pull sheet.

Through adopting above-mentioned technical scheme, be convenient for place in the containing box the piece that drags that will treat to change, at continuous experimentation, operating personnel will contain the test piece fragment drag the piece and directly insert and locate in the containing box, then will removable dragging the piece and take out from the containing box, when improving continuous experimental efficiency, provide the space of placing for removable dragging the piece.

Optionally, the inner wall of the storage box is provided with bristles for brushing off fragments of the test pieces on the surfaces of the dragging pieces.

Through adopting above-mentioned technical scheme, when inserting the piece that drags that will contain the test piece fragment and locate the containing box, operating personnel uses the brush hair brush to remove and remains in dragging the test piece fragment on piece surface, when improving and drag the clean efficiency of piece, reduces and drags a piece adhesion test piece fragment's risk when taking out from the removable piece that drags from the receiver.

Optionally, the convex surface of the dragging sheet is fixedly connected with a magnetic block which is attracted with the pressing strip; the cambered surface is provided with a containing groove for the magnetic block to be inserted.

Through adopting above-mentioned technical scheme, when the test piece is in by the destruction state, reduce the risk that drags the piece aversion, improve the degree of accuracy of experiment, while operating personnel inserts the magnetic path and locates when accomodating the groove, and the operating personnel of being convenient for knows the mounted position who drags piece and cambered surface, improves the cooperation efficiency of dragging piece and cambered surface.

Optionally, the end of the pulling piece is provided with a snapping part for separating the pulling piece from the arc surface; the snapping parts protrude out of the end parts of the pressing strips.

By adopting the technical scheme, the magnetic block which is sucked and combined on the cambered surface is separated by the snapping part, so that the separation speed of the pulling piece and the cambered surface is increased, and the efficiency of continuous experiments is improved.

Optionally, the concave surface of the pull sheet is provided with a release layer for limiting the adhesion of the test piece and the pull sheet.

Through adopting above-mentioned technical scheme, on the one hand reduce the test piece when taking out the test piece and drag the risk of piece adhesion, on the other hand reduce partial test piece fragment to adhere to and drag the difficult clear phenomenon of piece concave surface and take place.

Optionally, a positioning block is arranged on the convex surface of the pulling sheet; and the end part of the pressing strip is used for abutting against the side wall of the positioning block.

By adopting the technical scheme, when the pull sheet is placed in the arc surface, the operator moves the pull sheet to enable the positioning block to be abutted against the end part of the pressing strip, so that the position of the pull sheet in the arc surface can be determined, the efficiency of placing the pull sheet in the arc surface is improved, and the efficiency of continuous experiments is improved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the dragging sheet containing the test piece fragments is pulled out of the pressing strip, a new dragging sheet is replaced, the new dragging sheet is placed in the arc surface again, the next experiment can be carried out, after multiple experiments, an operator can clean the replaced dragging sheet and replace the dragging sheet, the efficiency of continuous experiments is improved, meanwhile, the influence of the test piece fragments on experiment data is reduced, and the accuracy of experiment results is improved;

2. through the storage box, on one hand, a placing space is provided for the replaceable dragging piece, on the other hand, the test piece fragments in the dragging piece can be poured into the storage box by an operator conveniently, so that the test piece fragments in the storage box can be conveniently treated uniformly, the tidiness of an operation environment is improved, and the cleaning efficiency of the test piece fragments is improved;

3. through leaving the type layer, on the one hand reduce the test piece when taking out the test piece and drag the risk of piece adhesion, on the other hand reduces the difficult clear phenomenon of partial test piece fragment adhesion to drag the piece concave surface and takes place.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic view for illustrating a state in which the trailing tab is separated from the pressing bar according to the embodiment of the present application.

Fig. 3 is a schematic structural diagram for showing a storage box according to an embodiment of the present application.

Fig. 4 is an enlarged view of a portion a of fig. 2.

Description of reference numerals: 1. a cleavage tester body; 2. a base; 3. layering; 31. a cambered surface; 32. a receiving groove; 4. dragging the sheet; 41. a snapping part; 42. positioning blocks; 5. a storage box; 51. brushing; 6. a release layer; 7. a magnetic block.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

In the asphalt mixture splitting test, the asphalt mixture is made into a Marshall test piece within a specified numerical range, then the splitting test is carried out on the test piece by using a splitting tester, and the test result is recorded.

The embodiment of the application discloses bituminous mixture splitting test appearance. Referring to fig. 1 and 2, the asphalt mixture splitting tester comprises a splitting tester body 1, the splitting tester body 1 is provided with a base 2 and a pressing strip 3 for fixing the position of a test piece, and the surface of the pressing strip 3 is provided with an arc surface 31 convenient for fixing the test piece. The concave surface of the cambered surface 31 is detachably connected with a pull sheet 4. In the continuous experiment process, after each experiment is finished, the dragging piece 4 in the concave surface of the cambered surface 31 is pulled away, and a new dragging piece 4 is replaced, so that the risk that test piece fragments on the surface of the dragging piece 4 influence the next experiment data can be reduced.

Referring to fig. 3, specifically, a storage box 5 is detachably connected to the upper surface of the base 2, the storage box 5 is used for containing test piece fragments remained on the surface of the trailing blade 4, and meanwhile, the storage box 5 is used for the replaceable trailing blade 4 to be inserted. The removable connection between receiver 5 and base 2 can be bolted connection, also can peg graft, can also be magnetism, and in this embodiment, receiver 5 is preferably magnetism with base 2's removable connection, borrows this connected mode, and the fixed position at base 2 upper surface is adjusted at will to receiver 5 of being convenient for. The inner wall fixedly connected with of receiver 5 is used for the brush to remove the broken brush hair 51 of dragging piece 4 surface test piece, borrows this design, when improving the clean efficiency of dragging piece 4, reduces to pull away from removable 4 times of dragging piece from receiver 5 and drags the broken risk of piece 4 adhesion test piece.

Referring to fig. 4, drag piece 4 and cambered surface 31 looks adaptation, drag the concave surface spraying of piece 4 to have from type layer 6, for from type layer 6 to be from the type membrane, be used for restricting the test piece from type layer 6 and drag the adhesion of piece 4, from the week side butt of type layer 6 and test piece. The convex surface of the dragging sheet 4 is abutted against the concave surface of the cambered surface 31, the convex surface of the dragging sheet 4 is fixedly connected with a magnetic block 7 which is attracted with the pressing bar 3, and the cambered surface 31 is provided with a containing groove 32 for the magnetic block 7 to be inserted. It should be noted that both ends of the pull tab 4 protrude from the end of the bead 3, that is, the length of the pull tab 4 is greater than the length of the bead 3. The two ends of the pulling piece 4 are integrally formed with a snapping portion 41 for the operator to pinch, and the snapping portion 41 is used for separating the pulling piece 4 from the arc surface 31.

Referring to fig. 4, in this example, in order to increase the speed of mounting the pulling piece 4 and the arc surface 31, a positioning block 42 for abutting against the end of the pressing bar 3 is integrally formed on the convex surface of the pulling piece 4. When the pull sheet 4 is placed in the concave surface of the arc surface 31, the positioning block 42 is moved to enable the positioning block 42 to be abutted against the end part of the pressing bar 3, so that the position of the magnetic block 7 inserted in the accommodating groove 32 can be determined, and the installation speed of the pull sheet 4 and the arc surface 31 is improved.

The implementation principle of the asphalt mixture splitting tester in the embodiment of the application is as follows: after the experiment at every turn, operating personnel shifts out splitting test appearance body 1 with destroyed test piece earlier, then contain the broken piece of dragging 4 of test piece and break off from both sides the layering 3 off with the fingers and thumb through breaking the portion 41 off with the fingers and thumb, then will contain the broken piece of dragging 4 of test piece and insert and locate in receiver 5, take out receiver 5 with removable piece of dragging 4 in receiver 5, drag piece 4 to place again newly in cambered surface 31, make locating piece 42 butt in the tip of layering 3, magnetic path 7 is inserted and is located and accomodate the inslot 32, alright carry out next experiment, treat after experimental many times, operating personnel alright clean the piece of dragging 4 of changing down.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides an asphalt mixture splitting test appearance which characterized in that: comprises a splitting tester body (1); the splitting tester body (1) is provided with a pressing strip (3) for fixing the position of a test piece; the surface of the pressing strip (3) is provided with an arc surface (31) convenient for fixing a test piece; the cambered surface (31) is provided with a dragging sheet (4) for abutting the peripheral side of the test piece; the dragging sheet (4) is matched with the cambered surface (31); the convex surface of the dragging sheet (4) is abutted with the concave surface of the cambered surface (31).

2. The asphalt mixture splitting tester according to claim 1, characterized in that: the cleavage tester body (1) is provided with a base (2); the upper surface of the base (2) is detachably connected with a storage box (5) used for containing test pieces.

3. The asphalt mixture splitting tester according to claim 2, characterized in that: the storage box (5) is used for inserting the pull sheet (4).

4. The asphalt mixture splitting tester according to claim 3, characterized in that: the inner wall of the storage box (5) is provided with bristles (51) used for brushing test pieces on the surface of the dragging piece (4).

5. The asphalt mixture splitting tester according to claim 1, characterized in that: the convex surface of the dragging sheet (4) is fixedly connected with a magnetic block (7) which is attracted with the pressing strip (3); the cambered surface (31) is provided with a containing groove (32) for the magnetic block (7) to be inserted.

6. The asphalt mixture splitting tester according to claim 5, characterized in that: the end part of the pulling piece (4) is provided with a snapping part (41) used for separating the pulling piece (4) from the cambered surface (31); the snapping part (41) protrudes out of the end part of the batten (3).

7. The asphalt mixture splitting tester according to claim 1, characterized in that: the concave surface of the pull sheet (4) is provided with a release layer (6) for limiting the adhesion of the test piece and the pull sheet (4).

8. The asphalt mixture splitting tester according to claim 1, characterized in that: a positioning block (42) is arranged on the convex surface of the pulling sheet (4); the end part of the pressing strip (3) is used for abutting against the side wall of the positioning block (42).

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