Automatic testing device of asphalt cohesion tester

Abstract

The utility model relates to the technical field of material testing, and particularly discloses an automatic testing device of an asphalt cohesion tester, which comprises a base, the functional mechanism is connected with the base through a connecting column, and the functional mechanism comprises a pressure indicating gauge, a lifting rocker and a rotary button; the telescopic mechanism comprises a telescopic air cylinder, a telescopic rod and a pressing block, the telescopic air cylinder is connected with the functional mechanism, the telescopic air cylinder is connected with one end of the telescopic rod, the pressing block is connected with the other end of the telescopic rod, a clamping groove is formed in the telescopic rod, and a driven gear is arranged on the clamping groove; the rotating mechanism comprises a motor, a transmission shaft and a driving gear, the motor is connected with the base, the transmission shaft is connected with the output end of the motor, and the driving gear is connected with the transmission shaft and meshed with the driven gear; the asphalt adhesive force experimental device overcomes the defects that in the prior art, the automation degree of the asphalt adhesive force experimental device is not enough, and the clamping of an experimental test piece is not stable enough.

Description

Technical Field

[0001] The utility model relates to the field of material testing, in particular to an automatic testing device for an asphalt cohesion tester. Background Art

[0002] The adhesion between asphalt and stone is one of the important indicators for evaluating the performance of asphalt mixtures. Research shows that the adhesion performance between asphalt and stone directly affects the road performance of asphalt mixtures.

[0003] In the prior art, for the testing device of the adhesion of asphalt, manual operation is usually used to provide radial torque support for the test specimens, which is time-consuming and laborious, and the applied force cannot be controlled evenly and accurately. At the same time, in the prior art, the fixation of the test specimens is not complete enough, which easily leads to incomplete fixation of the test specimens and inaccurate test results. Summary of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] The problem to be solved by the utility model is to provide an automatic testing device for an asphalt cohesion tester to overcome the defects of insufficient automation of the asphalt adhesion testing device and unstable clamping of the test specimens in the prior art.

[0006] (2) Technical Solutions

[0007] To solve the above technical problems, the utility model provides an automatic testing device for an asphalt cohesion tester, including:

[0008] A base;

[0009] A functional mechanism, the functional mechanism is connected to the base through a connecting column, the functional mechanism includes a pressure indicating meter, a lifting rocker and a rotation button, and the pressure indicating meter, the lifting rocker and the rotation button are all arranged adjacent to one side of the functional mechanism;

[0010] A telescopic mechanism, the telescopic mechanism includes a telescopic cylinder, a telescopic rod and a pressing block, the telescopic cylinder is connected to the other side of the functional mechanism, the output end of the telescopic cylinder is connected to one end of the telescopic rod, the telescopic cylinder drives the telescopic rod to stretch, the pressing block is connected to the other end of the telescopic rod, a clamping groove is provided on the telescopic rod, and a driven gear is arranged on the clamping groove;

[0011] Rotating mechanism, the rotating mechanism includes a motor, a transmission shaft, a driving gear and a torque meter. The motor is connected to the base. The transmission shaft is connected to the output end of the motor. The driving gear is connected to the transmission shaft. The driving gear meshes with the driven gear. The motor drives the driving gear to rotate. The torque meter is connected to the output end of the motor and the torque meter is connected to the transmission shaft.

[0012] The automatic testing device as described above. Optionally, the automatic testing device includes a pressure sensor. The pressure sensor is connected to the pressing block. The pressure sensor is remotely connected to the pressure indicating meter. The rotary button is electrically connected to the motor.

[0013] The automatic testing device as described above. Optionally, the lifting rocker is electrically connected to the telescopic cylinder. The lifting rocker controls the telescopic cylinder to drive the telescopic rod to extend or retract upward or downward.

[0014] The automatic testing device as described above. Optionally, the automatic testing device includes a rubber placement plate. The rubber placement plate is connected to the base and is disposed adjacent to the telescopic rod.

[0015] The automatic testing device as described above. Optionally, the automatic testing device includes a thimble mechanism. The thimble mechanism includes a fixed tube, a movable thimble tube and a spring. The fixed tube is connected to the base. The movable thimble tube is sleeved in the fixed tube. The spring is disposed between the fixed tube and the movable thimble tube.

[0016] The automatic testing device as described above. Optionally, there are four thimble mechanisms, and the four thimble mechanisms are evenly distributed at equal intervals around the center of the pressing block.

[0017] (III) Beneficial effects

[0018] An automatic testing device for an asphalt cohesion tester provided by the present utility model has the following beneficial effects:

[0019] (1) By controlling the lifting rocker of the present utility model, the telescopic cylinder can be controlled. The telescopic cylinder is connected to the telescopic rod. The telescopic rod is connected to the pressing block. A pressure sensor is provided on the pressing block. Lifting or pressing down the telescopic rod by the telescopic cylinder can lift or press the experimental test piece by the pressing block, providing an axial acting force for the experimental test piece. The pressure indicating meter is connected to the pressure sensor to display the pressure data. In this way, an axial acting force can be automatically applied to the experimental test piece, and at the same time, the applied acting force can be received in real time, effectively and precisely controlling the experiment.

[0020] (2) A passive gear is provided on the telescopic rod of the present utility model, and an active gear is provided on the transmission shaft. The motor drives the active gear to rotate, thereby driving the passive gear to rotate. The telescopic rod drives the pressing block to rotate under the drive of the passive gear. In this way, a radial force can be automatically applied to the experimental specimen, and at the same time, the applied force can be made more uniform, avoiding the problems of time-consuming and laborious caused by manual operation and uneven applied force.

[0021] (3) The experimental specimen of the present utility model is made according to the set standard, and then the experimental specimen is placed on the rubber placement plate. At the same time, the four thimble mechanisms cooperate with the rubber placement plate to fix the experimental specimen, ensuring that the experimental specimen does not move during the test and guaranteeing the stability and accuracy of the experiment. Brief Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 is a three-dimensional view of an automatic testing device for an asphalt cohesion tester of the present utility model;

[0024] Figure 2 is a three-dimensional view of another angle of an automatic testing device for an asphalt cohesion tester of the present utility model;

[0025] Figure 3 is a partial schematic view of an automatic testing device for an asphalt cohesion tester of the present utility model.

[0026] The corresponding component names for the reference numerals in the drawings are: 1, base; 11, connecting column; 2, functional mechanism; 21, pressure indicating meter; 22, lifting rocker; 23, rotation button; 31, telescopic cylinder; 32, telescopic rod; 33, pressing block; 34, card slot; 35, driven gear; 41, motor; 42, transmission shaft; 43, active gear; 44, torque meter; 5, rubber placement plate; 6, thimble mechanism; 61, fixed tube; 62, movable thimble tube. Detailed Description of the Embodiment

[0027] The present application will be described in detail below with reference to the drawings and specific embodiments.

[0028] The following describes the implementation manners of the present application through specific specific examples. Those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all embodiments. The present application can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope protected by the present application.

[0029] It should be noted that the following describes various aspects of the embodiments within the scope of the appended claims. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is illustrative only. Based on the present application, those skilled in the art should understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects described herein can be used to implement the device and / or practice the method. Additionally, this device and / or this method can be implemented using other structures and / or functionality in addition to one or more of the aspects described herein.

[0030] It also needs to be noted that the diagrams provided in the following embodiments only illustrate the basic concept of the present application in a schematic manner. The diagrams only show the components related to the present application rather than being drawn according to the number, shape, and size of the components in actual implementation. The type, quantity, and ratio of each component in its actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0031] In addition, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that the examples can be practiced without these specific details.

[0032] The following describes the technical solutions provided by each embodiment of the present application in conjunction with the accompanying drawings.

[0033] Refer to Figures 1 to 3, to solve the above technical problems, the present utility model provides an automatic testing device for an asphalt cohesion tester, which includes a base 1, a functional mechanism 2, a telescopic mechanism, and a rotating mechanism. The base 1 is connected to the functional mechanism 2 through a connecting column 11. The telescopic mechanism is connected to the functional mechanism 2, and the rotating mechanism is connected to the base 1. The functional mechanism 2 is used to provide functional support for the automatic bonding force testing device; the telescopic mechanism is used to press the test piece; the rotating mechanism is used to provide a rotational torque force for the test video.

[0034] It should be noted that the test piece is an asphalt test piece, and its manufacturing steps are as follows:

[0035] S1: Stir a fixed amount of asphalt and aggregates to form an asphalt mixture.

[0036] S2: Place the asphalt mixture into a metal test mold.

[0037] S3: Let it stand for 15 minutes to complete the production of the test piece.

[0038] In Figures 1 to 3 In an optional embodiment, the functional mechanism 2 is connected to the base 1 through the connecting column 11. The functional mechanism 2 includes a pressure indicating meter 21, a lifting rocker 22, and a rotation button 23. Among them, the pressure indicating meter 21 is used to display the pressure applied by the telescopic mechanism to the test piece; the lifting mechanism is used to control the lifting of the telescopic mechanism; the rotation button 23 is used to control the start and stop of the rotating mechanism.

[0039] Further, the pressure indicating meter 21, the lifting rocker 22, and the rotation button 23 are all adjacently arranged on one side of the functional mechanism 2.

[0040] In Figures 1 to 3 In an optional embodiment, the telescopic mechanism includes a telescopic cylinder 31, a telescopic rod 32, and a pressing block. The telescopic cylinder 31 is connected to the other side of the functional mechanism 2. The output end of the telescopic cylinder 31 is connected to one end of the telescopic rod 32. The telescopic cylinder 31 drives the telescopic rod 32 to expand and contract.

[0041] Further, the pressing block is connected to the other end of the telescopic rod 32. There is a card slot 34 on the telescopic rod 32, and a driven gear 35 is arranged on the card slot 34. Therefore, the rotation of the driven gear 35 can drive the telescopic rod 32 to rotate.

[0042] In Figures 1 to 3 In an optional embodiment, the rotating mechanism includes a motor 41, a transmission shaft 42, a driving gear 43, and a torque meter 44. The motor 41 is connected to the base 1. The transmission shaft 42 is connected to the output end of the motor 41. The driving gear 43 is connected to the transmission shaft 42. The driving gear 43 meshes with the driven gear 35. The motor 41 drives the driving gear 43 to rotate. The torque meter 44 is connected to the output end of the motor 41 and is connected to the transmission shaft 42.

[0043] Therefore, the rotation of the telescopic rod 32 can be controlled by the motor 41, so that the bonding force automatic testing device can automatically apply a radial acting force to the experimental specimen. The axial acting force can be automatically applied to the experimental specimen by the telescopic cylinder 31.

[0044] It should be noted that the experimenter can observe the torque reading in real time through the torque meter, so as to calculate and judge the experimental results more accurately. Specifically, the motor needs to be evenly horizontally twisted by 120° within 1 second during the experiment.

[0045] Furthermore, the automatic testing device includes a pressure sensor, which is connected to the pressing block and remotely connected to the pressure indicator 21.

[0046] Furthermore, the rotation button 23 is electrically connected to the motor 41.

[0047] Furthermore, the lifting rocker 22 is electrically connected to the telescopic cylinder 31, and the lifting rocker 22 controls the telescopic cylinder 31 to drive the telescopic rod 32 to extend or retract upward or downward.

[0048] In Figures 1 to 3 In an optional embodiment, the automatic testing device includes a rubber placement plate 5, which is connected to the base 1 and is arranged adjacent to the telescopic rod 32.

[0049] Furthermore, the automatic testing device includes a thimble mechanism 6, which includes a fixed tube 61, a movable thimble tube 62 and a spring. The fixed tube 61 is connected to the base 1, the movable thimble tube 62 is sleeved in the fixed tube 61, and the spring is arranged between the fixed tube 61 and the movable thimble tube 62. There are four thimble mechanisms 6, and the four thimble mechanisms 6 are evenly distributed at equal intervals around the center of the pressing block.

[0050] It should be noted that the thimble mechanism 6 can be in contact with the metal test mold, and the thimble mechanism 6 is used to cooperate with the rubber placement plate 5 arranged on the bottom plate to fix the metal test mold, ensuring that the metal test mold does not displace during the experiment.

[0051] The specific steps of an automatic testing device for an asphalt cohesion tester of the present utility model are as follows:

[0052] Fabricate an experimental specimen according to the set standard, and then place the experimental specimen on the rubber placement plate 5. At the same time, the four thimble mechanisms 6 cooperate with the rubber placement plate 5 to fix the experimental specimen, ensuring that the experimental specimen does not displace during the test and guaranteeing the stability and accuracy of the experiment.

[0053] By controlling the lifting rocker 22, the telescopic cylinder 31 can be controlled. The telescopic cylinder 31 is connected to the telescopic rod 32, and the telescopic rod 32 is connected to the pressing block. A pressure sensor is provided on the pressing block. Lifting or pressing down the telescopic rod 32 by the telescopic cylinder 31 can lift or press the experimental test piece, providing an axial acting force for the experimental test piece. The pressure indicating meter 21 is connected to the pressure sensor to display the pressure data. In this way, an axial acting force can be automatically applied to the experimental test piece, and at the same time, the applied acting force can be received in real time, effectively and precisely controlling the experiment.

[0054] A passive gear is provided on the telescopic rod 32, and a driving gear 43 is provided on the transmission shaft 42. The motor 41 drives the driving gear 43 to rotate, thereby driving the passive gear to rotate. The telescopic rod 32 drives the pressing block to rotate under the drive of the passive gear. In this way, a radial acting force can be automatically applied to the experimental test piece, and at the same time, the applied force can be made more uniform, avoiding the problems of time-consuming, laborious and uneven applied force caused by manual operation.

[0055] For the same and similar parts among the various embodiments in this specification, reference can be made to each other. Each embodiment focuses on the differences from other embodiments.

[0056] As mentioned above, the above are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed in the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An automatic testing device for an asphalt cohesion tester, characterized in that, Comprising: Base (1); Functional mechanism (2), the functional mechanism (2) is connected to the base (1) through a connecting column (11), the functional mechanism (2) includes a pressure indicator (21), a lifting rocker (22) and a rotary button (23), and the pressure indicator (21), the lifting rocker (22) and the rotary button (23) are all adjacently arranged on one side of the functional mechanism (2); Telescopic mechanism, the telescopic mechanism includes a telescopic cylinder (31), a telescopic rod (32) and a pressing block (33), the telescopic cylinder (31) is connected to the other side of the functional mechanism (2), the output end of the telescopic cylinder (31) is connected to one end of the telescopic rod (32), the telescopic cylinder (31) drives the telescopic rod (32) to expand and contract, the pressing block (33) is connected to the other end of the telescopic rod (32), a card slot (34) is provided on the telescopic rod (32), and a driven gear (35) is arranged on the card slot (34); Rotating mechanism, the rotating mechanism includes a motor (41), a transmission shaft (42), a driving gear (43) and a torque meter (44), the motor (41) is connected to the base (1), the transmission shaft (42) is connected to the output end of the motor (41), the driving gear (43) is connected to the transmission shaft (42), the driving gear (43) meshes with the driven gear (35), the motor (41) drives the driving gear (43) to rotate, the torque meter (44) is connected to the output end of the motor (41), and the torque meter (44) is connected to the transmission shaft (42).

2. The automatic test device according to claim 1, wherein The automatic testing device includes a pressure sensor, the pressure sensor is connected to the pressing block (33), the pressure sensor is remotely connected to the pressure indicator (21), and the rotary button (23) is electrically connected to the motor (41).

3. The automatic test device according to claim 1, characterized in that, The lifting rocker (22) is electrically connected to the telescopic cylinder (31), and the lifting rocker (22) controls the telescopic cylinder (31) to drive the telescopic rod (32) to expand and contract upward or downward.

4. The automatic test device according to claim 1, wherein, The automatic testing device includes a rubber placement plate (5), the rubber placement plate (5) is connected to the base (1), and the rubber placement plate (5) is adjacently arranged to the telescopic rod (32).

5. The automatic test device according to claim 4, characterized in that, The automatic testing device includes a thimble mechanism (6), the thimble mechanism (6) includes a fixed tube (61), a movable thimble tube (62) and a spring, the fixed tube (61) is connected to the base (1), the movable thimble tube (62) is sleeved in the fixed tube (61), and the spring is arranged between the fixed tube (61) and the movable thimble tube (62).

6. The automatic test device according to claim 5, characterized in that, There are four thimble mechanisms (6), and the four thimble mechanisms (6) are evenly distributed at equal intervals around the center of the pressing block (33).

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