A composite modified asphalt pavement adhesion performance detection device

Abstract

The utility model relates to bituminous detection technical field, and disclose a kind of composite modified bituminous pavement adhesion performance detection device, including detector body and the drive rod body being set to the bottom of detector body, further include: the bottom of drive rod body is fixedly connected with extension block, the surface of the extension block is equipped with through slot, the inside of the through slot is provided with ball clamp;The utility model can be completed when disassembling, staff can be completed by lifting baffle and rotating rotor body, such installation mode can guarantee that rotor body and drive rod body are in same perpendicular line when using, reduce in subsequent detection process, rotor body appears the situation of bumping wall, solve the problem that the position of rotor is difficult to be stabilized and reinforced when using part of device currently, after rotor is immersed in bitumen, bumping sample test tube inner wall due to the influence of resistance, detection result is easily influenced.

Description

Technical Field

[0001] This utility model relates to the field of asphalt testing technology, specifically to a device for testing the adhesion performance of composite modified asphalt pavement. Background Technology

[0002] The adhesion between asphalt and aggregate directly affects the anti-stripping performance of the road surface. If the adhesion is insufficient, vehicle load and rainwater erosion can easily lead to asphalt peeling, affecting driving safety. It is essential to test the adhesion performance of composite modified asphalt before it is used for road paving. The high-temperature rotational viscometer, which generates torque by continuously rotating a rotor immersed in the melt being tested, is often used for asphalt performance testing.

[0003] Currently, in some high-temperature rotational viscometers, the connection between the rotor and the drive rod is usually achieved by connecting rings. After the rotor is immersed in the interior of a relatively viscous asphalt sample, the rotor has a certain amount of room to move when the drive rod rotates it. At this time, the drive rod is in a state perpendicular to the ground, and the rotor is prone to contacting the inner wall of the sample tube due to the internal resistance of the asphalt. The test results are easily affected by the collision with the wall. Utility Model Content

[0004] The purpose of this invention is to provide a device for testing the adhesion performance of composite modified asphalt pavement, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a composite modified asphalt pavement adhesion performance testing device, comprising a testing instrument body and a drive rod body disposed at the bottom of the testing instrument body, and further comprising: An extension block is fixedly connected to the bottom of the drive rod body. A through groove is opened on the surface of the extension block, and a locking ball is set inside the through groove. A liftable blocking mechanism is installed on the surface of the extension block. A groove is formed on the surface of the extension block, and an extrusion plate is slidably connected inside the groove, with the surface of the extrusion plate in contact with the surface of the retaining bead; A rotating mechanism located inside the extension block includes a limiting component for connection and a rotor body immersed in an asphalt sample.

[0006] Preferably, the shielding mechanism includes an outer frame fixedly sleeved on the surface of the extension block, a lifting plate slidably connected to the inner wall of the outer frame, a spring fixedly connected to the top of the lifting plate, one end of the spring fixedly connected to the top of the inner wall of the outer frame, a shielding plate fixedly connected to the bottom of the lifting plate, the surface of the shielding plate being in contact with the surface of the extension block, and a pressing plate fixedly connected to the inside of the shielding plate.

[0007] Preferably, the limiting component includes a disc fixedly connected to the top of the rotor body, the surface of the disc contacting the inner wall of the extension block, a protrusion fixedly connected to the top of the disc, and a cylindrical groove formed on the top of the inner wall of the extension block, the surface of the protrusion contacting the inner wall of the cylindrical groove.

[0008] Preferably, a retaining plate is fixedly connected to both sides of the protrusion surface, and a retaining groove is formed on the inner wall of the cylindrical groove, with the surface of the retaining plate in contact with the inner wall of the retaining groove.

[0009] Preferably, the surface of the disc has an arc-shaped groove, and the surface of the retaining bead contacts the inner wall of the arc-shaped groove.

[0010] Preferably, an arc-shaped plate is fixedly connected to the inner wall of the slot, and the surface of the card plate is in contact with the surface of the arc-shaped plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: During disassembly and assembly, the operator can complete the process by raising the baffle and rotating the rotor body. This installation method ensures that the rotor body and the drive rod body are on the same vertical line during use, reducing the possibility of the rotor body hitting the wall during subsequent testing. It solves the problem that some current devices are difficult to stabilize and reinforce the rotor position during use, and the rotor is prone to hitting the inner wall of the sample tube due to resistance after being immersed in asphalt, which can affect the test results. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the present invention with the rotating mechanism disassembled; Figure 3 This is a three-dimensional structural diagram of the present invention with the outer frame and the baffle plate cut apart. Figure 4 This is a three-dimensional structural diagram of the present invention with the limiting component removed and the extension block cut open. Figure 5 This is a three-dimensional structural diagram of the present invention with the extension block cut open.

[0013] In the diagram: 1. Detector body; 2. Drive rod body; 3. Extension block; 4. Through slot; 5. Clamping bead; 6. Blocking mechanism; 61. Outer frame; 62. Lifting plate; 63. Spring; 64. Blocking plate; 7. Extrusion plate; 8. Slide groove; 9. Rotation mechanism; 91. Rotor body; 92. Limiting component; 921. Disc; 922. Protrusion; 923. Clamping plate; 10. Columnar groove; 11. Clamping slot; 12. Arc plate. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-5 As shown, a composite modified asphalt pavement adhesion performance testing device includes a testing instrument body 1. A sensor is installed inside the testing instrument body 1. A drive rod body 2 is installed at the bottom of the testing instrument body 1. The testing instrument body 1, drive rod body 2, and sensor utilize mature technology from existing high-temperature rotational viscometers, which will not be detailed here. An extension block 3 is fixedly connected to the bottom of the drive rod body 2. A through groove 4 is formed on the surface of the extension block 3, and a retaining bead 5 is installed inside the through groove 4. A shielding mechanism 6 is installed on the surface of the extension block 3. The shielding mechanism 6 includes an outer frame 61 fixedly sleeved on the surface of the extension block 3. A lifting plate 62 is slidably connected to the inner wall of the outer frame 61, and the top of the lifting plate 62 is fixedly connected to... There is a spring 63, one end of which is fixedly connected to the top of the inner wall of the outer frame 61. A baffle plate 64 is fixedly connected to the bottom of the lifting plate 62. The surface of the baffle plate 64 is in contact with the surface of the extension block 3. When the operator moves the baffle plate 64 upward, the obstruction of the through groove 4 is released, and the locking bead 5 can move inside the through groove 4. A pressing plate 7 is fixedly connected to the inner wall of the baffle plate 64. A sliding groove 8 is opened on the surface of the extension block 3. The surface of the pressing plate 7 is slidably connected to the inner wall of the sliding groove 8. The surface of the pressing plate 7 is in contact with the surface of the locking bead 5. When the baffle plate 64 drives the pressing plate 7 to descend, the pressing plate 7 can press the locking bead 5. At this time, the sliding groove 8 supports the pressing plate 7 and can restrict the position of the baffle plate 64. The extension block 3 is internally equipped with a rotating mechanism 9. The rotating mechanism 9 includes a limiting component 92 for connection and a rotor body 91 immersed in the asphalt sample. The limiting component 92 includes a disc 921 fixedly connected to the top of the rotor body 91. The surface of the disc 921 is in contact with the inner wall of the extension block 3. An arc-shaped groove is formed on the surface of the disc 921. The surface of the locking bead 5 is in contact with the inner wall of the arc-shaped groove. A protrusion 922 is fixedly connected to the top of the disc 921. A cylindrical groove 10 is formed on the top of the inner wall of the extension block 3. The surface of the protrusion 922 is in contact with the inner wall of the cylindrical groove 10. A locking plate 923 is fixedly connected to both sides of the surface of the protrusion 922. A locking groove 11 is formed on the inner wall of the cylindrical groove 10. The surface of the locking plate 923 is in contact with the inner wall of the locking groove 11. At this time, the limiting component 92 is used to connect the rotor body 91 and the extension block 3. When the drive rod body 2 drives the extension block 3 to rotate, the rotor body 91 rotates inside the asphalt, which can test the adhesion of the asphalt.

[0016] Working principle: The operator moves the baffle plate 64 upward, at which time the obstruction of the through groove 4 is released. The operator moves the limiting component 92 into the interior of the extension block 3. The disc 921 can squeeze the locking bead 5. The locking bead 5 moves to one side inside the through groove 4. The protrusion 922 passes through the cylindrical groove 10. Then the operator rotates the rotor body 91. The disc 921 drives the protrusion 922 to rotate. The inner wall of the slot 11 is fixedly connected to the arc plate 12. The surface of the locking plate 923 is in contact with the surface of the arc plate 12. The arc plate 12 limits the rotation angle of the locking plate 923. After the locking plate 923 rotates and is in contact with the surface of the arc plate 12, under the action of the spring 63, the lifting plate 62 drives the baffle plate 64 to descend. The baffle plate 64 drives the pressing plate 7 to descend. The pressing plate 7 squeezes the locking bead 5. The locking bead 5 is in contact with the inner wall of the arc groove. The position of the disc 921 is restricted. The rotor body 91 can be stably connected to the bottom of the extension block 3. The operator immerses the rotor body 91 inside the asphalt and starts the drive rod body 2 to rotate through the detector body 1. The drive rod body 2 drives the extension block 3 to rotate, and the limiting component 92 can drive the rotor body 91 to rotate. The resistance of the rotor body 91 when rotating inside the asphalt can be used to test the adhesion of the asphalt. After the test is completed, the operator lifts the shielding plate 64 and rotates the rotor body 91 in the opposite direction to release the contact between the clamping plate 923 and the arc plate 12. At this time, the operator can remove the extension block 3 for cleaning in preparation for subsequent use.

[0017] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0018] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for testing the adhesion strength of composite modified asphalt pavement, comprising a testing instrument body (1) and a drive rod body (2) disposed at the bottom of the testing instrument body (1), characterized in that, Also includes: An extension block (3) is fixedly connected to the bottom of the drive rod body (2). A through groove (4) is opened on the surface of the extension block (3). A locking bead (5) is provided inside the through groove (4). A liftable blocking mechanism (6) is installed on the surface of the extension block (3). A groove (8) is formed on the surface of the extension block (3), and an extrusion plate (7) is slidably connected inside the groove (8). The surface of the extrusion plate (7) is in contact with the surface of the retaining bead (5). A rotating mechanism (9) is disposed inside the extension block (3), the rotating mechanism (9) including a limiting component (92) for connection and a rotor body (91) immersed in an asphalt sample.

2. The composite modified asphalt pavement adhesion performance testing device according to claim 1, characterized in that: The shielding mechanism (6) includes an outer frame (61) fixedly sleeved on the surface of the extension block (3), a lifting plate (62) slidably connected to the inner wall of the outer frame (61), a spring (63) fixedly connected to the top of the lifting plate (62), one end of the spring (63) fixedly connected to the top of the inner wall of the outer frame (61), a shielding plate (64) fixedly connected to the bottom of the lifting plate (62), the surface of the shielding plate (64) is in contact with the surface of the extension block (3), and the pressing plate (7) is fixedly connected to the inside of the shielding plate (64).

3. The device for testing the adhesion strength of composite modified asphalt pavement according to claim 1, characterized in that: The limiting component (92) includes a disc (921) fixedly connected to the top of the rotor body (91). The surface of the disc (921) is in contact with the inner wall of the extension block (3). A protrusion (922) is fixedly connected to the top of the disc (921). A cylindrical groove (10) is opened on the top of the inner wall of the extension block (3). The surface of the protrusion (922) is in contact with the inner wall of the cylindrical groove (10).

4. The composite modified asphalt pavement adhesion performance testing device according to claim 3, characterized in that: Both sides of the surface of the protrusion (922) are fixedly connected with a card plate (923), and the inner wall of the cylindrical groove (10) is provided with a card groove (11), and the surface of the card plate (923) is in contact with the inner wall of the card groove (11).

5. The composite modified asphalt pavement adhesion performance testing device according to claim 3, characterized in that: The surface of the disc (921) is provided with an arc-shaped groove, and the surface of the bead (5) is in contact with the inner wall of the arc-shaped groove.

6. The composite modified asphalt pavement adhesion performance testing device according to claim 4, characterized in that: An arc-shaped plate (12) is fixedly connected to the inner wall of the slot (11), and the surface of the plate (923) is in contact with the surface of the arc-shaped plate (12).

Images