CN218726202U

CN218726202U - Low-temperature crack resistance testing machine for asphalt mixture

Info

Publication number: CN218726202U
Application number: CN202222847621.6U
Authority: CN
Inventors: 丁栋; 李鹏祥; 赵永鑫
Original assignee: Zibo Dingtai New Material Technology Co ltd
Current assignee: Zibo Dingtai New Material Technology Co ltd
Priority date: 2022-10-27
Filing date: 2022-10-27
Publication date: 2023-03-24
Anticipated expiration: 2032-10-27

Abstract

The utility model relates to a pitch test equipment technical field specifically is a bituminous mixture low temperature crack resistance performance testing machine, the utility model discloses a movable plate bottom both sides are connected with the slider, slider and spout looks gomphosis sliding connection, even if be convenient for adjust the position of movable plate according to the size of the piece of waiting to test, again by connecting block through bolt and fixed orifices fixed connection, accomplish the fixed to the movable plate position, through rotatory handle, make spacing splint fix the piece of waiting to test to make the relative position between piece of waiting to test and the testing machine more fixed, realize the atress equilibrium, test error is little, be convenient for detect the pressure head and treat the piece of waiting to test and split the operation; the placing plate is arranged between the to-be-tested piece and the bearing plate, so that the bearing plate is prevented from being damaged by the to-be-tested piece in the test process, and the test of the subsequent to-be-tested piece is prevented from being influenced.

Description

Low-temperature crack resistance testing machine for asphalt mixture

Technical Field

The utility model relates to a pitch test equipment technical field specifically is a bituminous mixture low temperature crack resistance capability test machine.

Background

Asphalt mixes are one of the most commonly used materials in highway engineering and are widely used in pavement surfacing. The asphalt pavement is often cracked due to the comprehensive action of traffic load and temperature change in the natural environment in the use process, and the phenomenon is particularly serious in seasons with low temperature and large temperature change amplitude.

The Chinese patent with the prior publication number of CN101526519B discloses a method for testing the low-temperature crack resistance of an asphalt mixture after crushing coarse aggregates, which comprises the following steps: extracting 4-6 core samples from an asphalt pavement construction site, measuring the bulk relative density of the core samples, and carrying out a splitting test at a loading rate to obtain the splitting strength of each sample; extracting a mixture with the same batch and the same type as the construction site, heating the mixture in an oven to the site paving temperature, forming 4-6 test pieces, coring and cutting the test pieces into cylindrical indoor test pieces with the same size as a site core sample, and carrying out a splitting test at a loading rate to obtain the splitting strength of the test pieces; and (4) calculating the splitting strength ratio between the field and the indoor.

In view of the above-mentioned related art, the inventor found that when a testing machine performs a splitting test on an asphalt sample, it is difficult for the testing machine to firmly fix asphalt samples of different sizes on the testing machine, and the asphalt sample may shift relative to the testing machine during the splitting process.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a bituminous mixture low temperature crack resistance testing machine to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a bituminous mixture low temperature crack resistance testing machine, includes device base, support column, roof and detection pressure head, the support column is installed in device base top four corners, the support column top is connected with the roof, install the pneumatic cylinder in the middle of the roof bottom surface, pneumatic cylinder bottom output is connected with the mounting panel, be provided with the detection pressure head in the middle of the mounting panel bottom, be provided with the mount pad in the middle of the device base top, the mount pad surface is provided with control panel, the loading board is installed at the mount pad top, the spout has been seted up to loading board top surface both sides, two install the movable plate between the spout, threaded connection has the threaded rod in the middle of the movable plate surface, threaded rod one end is connected with the handle, the threaded rod other end is connected with spacing splint, the handle below has the connecting block in movable plate surface mounting, install in the middle of loading board top surface and place the board surface and remain the test piece.

Preferably, the mounting plate is in sleeve-joint sliding connection with the support column through a sliding sleeve.

Preferably, the two sides of the bottom of the moving plate are connected with sliding blocks, and the sliding blocks are embedded with the sliding grooves in a sliding manner.

Preferably, four corners of the back of the limiting clamp plate are connected with limiting slide bars, four corners of the surface of the moving plate are provided with limiting grooves, and the limiting slide bars are in sleeve joint with the limiting grooves in sliding connection.

Preferably, a row of fixing holes are formed in the middle of the surface of the bearing plate, and the connecting block is fixedly connected with the fixing holes through bolts.

Preferably, a mounting groove is formed in the middle of the surface of the top of the bearing plate, and the bottom of the placing plate is fixedly mounted with the mounting groove in an inserting manner.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a both sides of movable plate bottom are connected with the slider, and slider and spout looks gomphosis sliding connection even if be convenient for adjust the position of movable plate according to the size of the piece of waiting to test, again by connecting block through bolt and fixed orifices fixed connection, accomplish the fixed to the movable plate position, then through rotating the handle, make spacing splint fix the piece of waiting to test to make the relative position between piece of waiting to test and the testing machine more fixed, realize the atress equilibrium, test error is little, is convenient for detect the pressure head and treats the piece of waiting to test and split the operation; the placing plate is arranged between the to-be-tested piece and the bearing plate, so that the bearing plate is prevented from being damaged by the to-be-tested piece in the test process, and the test of the subsequent to-be-tested piece is prevented from being influenced.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of the structure of the loading plate of the present invention.

In the figure: 1. a device base; 2. a support pillar; 3. a top plate; 4. detecting a pressure head; 5. a carrier plate; 6. a hydraulic cylinder; 7. mounting a plate; 8. a sliding sleeve; 9. a mounting seat; 10. a control panel; 11. placing the plate; 12. a test piece to be tested; 13. moving the plate; 14. a chute; 15. a limiting clamp plate; 16. a slider; 17. a fixing hole; 18. installing a groove; 19. connecting blocks; 20. a bolt; 21. a threaded rod; 22. a handle; 23. a limiting groove; 24. and limiting the sliding rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides an asphalt mixture low temperature crack resistance testing machine, including device base 1, support column 2, roof 3 and detection pressure head 4, support column 2 is installed at 1 top four corners of device base, 2 tops of support column are connected with roof 3, install pneumatic cylinder 6 in the middle of the 3 bottom surfaces of roof, pneumatic cylinder 6 bottom output is connected with mounting panel 7, be provided with in the middle of the 7 bottom of mounting panel and detect pressure head 4, be provided with mount pad 9 in the middle of the 1 top of device base, mount pad 9 surface is provided with control panel 10, loading board 5 is installed at the 9 top of mount pad, spout 14 has been seted up to 5 top surfaces of loading board both sides, install movable plate 13 between two spout 14, threaded connection has threaded rod 21 in the middle of the 13 surfaces of movable plate, threaded rod 21 one end is connected with handle 22, the threaded rod 21 other end is connected with spacing splint 15, handle 22 below has connecting block 19 in movable plate 13 surface mounting, install in the middle of 5 top surfaces of loading board and place board 11, place board 11 surface and place and remain test piece 12.

Further, the mounting plate 7 is in sleeve-joint sliding connection with the support column 2 through a sliding sleeve 8.

Further, the two sides of the bottom of the moving plate 13 are connected with sliders 16, and the sliders 16 are in embedded sliding connection with the sliding grooves 14.

Furthermore, four corners of the back of the limiting clamp plate 15 are connected with limiting slide bars 24, four corners of the surface of the moving plate 13 are provided with limiting grooves 23, and the limiting slide bars 24 are in sleeve sliding connection with the limiting grooves 23.

Furthermore, a row of fixing holes 17 are formed in the middle of the surface of the bearing plate 5, and the connecting block 19 is fixedly connected with the fixing holes 17 through bolts 20.

Furthermore, a mounting groove 18 is formed in the middle of the top surface of the bearing plate 5, and the bottom of the placing plate 11 is fixedly mounted in an inserting manner with the mounting groove 18.

The utility model discloses a movable plate 13 bottom both sides are connected with slider 16,

slider

16 and 14 looks gomphosis sliding connection of spout, even if be convenient for adjust the position of movable plate 13 according to the size of waiting to test 12, again by connecting block 19 through bolt 20 and fixed orifices 17 looks fixed connection, accomplish the fixed to movable plate 13 position, later through rotatory handle 22, make spacing splint 15 fix waiting to test 12, thereby make the relative position between waiting to test 12 and the testing machine more fixed, realize the atress equilibrium, test error is little, be convenient for detect pressure head 4 and treat that test 12 carries out the splitting operation; by arranging the placing plate 11 between the to-be-tested piece 12 and the bearing plate 5, the to-be-tested piece 12 is prevented from damaging the bearing plate 5 in the test process, so that the test of the subsequent to-be-tested piece 12 is not influenced.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an anti performance test machine that splits of bituminous mixture low temperature, includes device base (1), support column (2), roof (3) and detects pressure head (4), its characterized in that: support column (2) are installed in device base (1) top four corners, support column (2) top is connected with roof (3), install pneumatic cylinder (6) in the middle of roof (3) bottom surface, pneumatic cylinder (6) bottom output is connected with mounting panel (7), be provided with in the middle of mounting panel (7) bottom and detect pressure head (4), be provided with mount pad (9) in the middle of device base (1) top, mount pad (9) surface is provided with control panel (10), loading board (5) is installed at mount pad (9) top, spout (14), two spout (14) have been seted up to loading board (5) top surface both sides install movable plate (13) between spout (14), threaded rod (21) in the middle of the movable plate (13) surface has, threaded rod (21) one end is connected with handle (22), threaded rod (21) other end is connected with spacing splint (15), handle (22) below has connecting block (19) in movable plate (13) surface mounting, loading board (5) top surface mid-mounting places board (11), place board (11) surface and remain test piece (12).

2. The asphalt mixture low-temperature crack resistance testing machine according to claim 1, characterized in that: the mounting plate (7) is in sleeve joint sliding connection with the support column (2) through a sliding sleeve (8).

3. The asphalt mixture low-temperature crack resistance testing machine according to claim 1, characterized in that: the two sides of the bottom of the moving plate (13) are connected with sliding blocks (16), and the sliding blocks (16) are in embedded sliding connection with the sliding grooves (14).

4. The asphalt mixture low-temperature crack resistance testing machine according to claim 1, characterized in that: the four corners of the back of the limiting clamp plate (15) are connected with limiting slide rods (24), the four corners of the surface of the moving plate (13) are provided with limiting grooves (23), and the limiting slide rods (24) are in sleeve joint with the limiting grooves (23) in a sliding connection mode.

5. The asphalt mixture low-temperature crack resistance testing machine according to claim 1, characterized in that: a row of fixing holes (17) are formed in the middle of the surface of the bearing plate (5), and the connecting block (19) is fixedly connected with the fixing holes (17) through bolts (20).

6. The asphalt mixture low-temperature crack resistance testing machine according to claim 1, characterized in that: the middle of the top surface of the bearing plate (5) is provided with a mounting groove (18), and the bottom of the placing plate (11) is fixedly mounted with the mounting groove (18) in an inserting manner.