Asphalt mixture impact testing machine

Abstract

The utility model discloses an asphalt mixture impact testing machine, which relates to the technical field of asphalt mixture impact resistance and comprises a case, a loading bearing platform is arranged on the upper portion of the case, and two lifting positioning devices distributed in a mirror image mode are fixedly mounted at the top end of the loading bearing platform. Guide rails are fixedly installed on the opposite sides of the two lifting positioning devices correspondingly, a connecting support is installed on the upper portions of the two guide rails, an elevator is fixedly installed in the middle of the connecting support, a hammer head is detachably arranged on the lower portion of the elevator, a positioning ring is arranged in the middle of the object bearing platform, and a control console is fixedly installed on one side of the machine box. The device can be used for carrying out an impact resistance test on the asphalt mixture test piece, is simple and practical in structure, can effectively and conveniently help a worker to test the impact resistance of the asphalt mixture, and can help to produce the asphalt mixture with good impact resistance.

Description

Technical Field

[0001] The utility model relates to the technical field of the impact resistance performance of asphalt mixtures, and particularly relates to an impact testing machine for asphalt mixtures. Background Art

[0002] Asphalt mixture is the general term for the mixture prepared by mixing mineral materials and asphalt binder. It is divided into continuous gradation and discontinuous gradation mixtures according to the material composition and structure, and is divided into dense gradation, semi-open gradation and open gradation mixtures according to the mineral aggregate gradation composition and void ratio. It is necessary to make specimen plates of asphalt mixtures according to different ratios and then test their performance.

[0003] When testing the performance of asphalt mixtures, it is necessary to conduct impact resistance tests on asphalt mixtures to improve the durability of roads. However, the existing technology does not pay enough attention to the impact resistance performance of asphalt mixtures, resulting in immature test evaluation methods. Content of the Utility Model

[0004] In order to solve the problem that the existing technology does not pay enough attention to the impact resistance performance of asphalt mixtures, resulting in immature test evaluation methods; the purpose of the utility model is to provide an impact testing machine for asphalt mixtures.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme: an impact testing machine for asphalt mixtures, including a chassis. The upper part of the chassis is provided with a load-bearing platform. The top of the load-bearing platform is fixedly installed with two mirror-image distributed lifting and positioning devices. Guide rails are fixedly installed on the opposite sides of the two lifting and positioning devices. An adapter bracket is installed on the upper parts of the two guide rails. A hanging clamp is fixedly installed in the middle of the adapter bracket. A hammer head is detachably arranged below the hanging clamp. A positioning ring is arranged in the middle of the load-bearing platform. A control console is fixedly installed on one side of the chassis.

[0006] Preferably, an electric push rod is fixedly installed at the lower part of the chassis. The driving end of the electric push rod penetrates through the load-bearing platform, and the bottom end of the positioning ring is fixedly installed on the driving end of the electric push rod.

[0007] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0008] 1. This application can conduct impact resistance tests on asphalt mixture specimens, and the device has a simple and practical structure, which can effectively and conveniently help workers test the impact resistance performance of asphalt mixtures, thus helping to produce asphalt mixtures with good impact resistance performance.

[0009] 2. This application can conveniently place the asphalt mixture specimens into the positioning ring, making it more convenient for users to use, and thus accelerating the test speed. Description of the Drawings

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0011] Figure 1 It is a schematic structural diagram of the present invention.

[0012] Figure 2 It is a schematic cross-sectional structural diagram of the present invention.

[0013] Figure 3 It is a schematic structural diagram of the disassembled structure of the present invention.

[0014] In the figure: 1, control console; 2, chassis; 21, support column; 211, support; 22, load-bearing platform; 221, rigid support; 23, electric push rod; 24, positioning ring; 241, first groove; 25, lifting and positioning device; 26, guide rail; 27, second groove; 28, top plate; 3, lifting hook; 31, connecting bracket; 32, hammer head. Specific embodiments

[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0016] Embodiment: As Figures 1-3 shown, the present invention provides an asphalt mixture impact testing machine, including a chassis 2. A load-bearing platform 22 is provided on the upper part of the chassis 2. Two mirror-image distributed lifting and positioning devices 25 are fixedly installed at the top end of the load-bearing platform 22. Guide rails 26 are fixedly installed on the opposite sides of the two lifting and positioning devices 25. A connecting bracket 31 is installed on the upper parts of the two guide rails 26. A lifting hook 3 is fixedly installed in the middle of the connecting bracket 31. A hammer head 32 is detachably provided at the lower part of the lifting hook 3. A positioning ring 24 is provided in the middle of the load-bearing platform 22. A control console 1 is fixedly installed on one side of the chassis 2. By setting the control console 1, operating the control console 1 makes the control lifting and positioning device 25 drive the connecting bracket 31 to move upward, that is, drive the lifting hook 3 and the hammer head 32 to move upward. An inductor is provided inside the lifting hook 3 to sense the impact force generated when the hammer head 32 impacts the asphalt mixture specimen and feedback it to the control console 1. The impact force data can be viewed through the control console 1.

[0017] An electric push rod 23 is fixedly installed at the lower part of the chassis 2. The driving end of the electric push rod 23 penetrates through the load-bearing platform 22, and the bottom end of the positioning ring 24 is fixedly installed at the driving end of the electric push rod 23. By setting the electric push rod 23, under the drive of the electric push rod 23, the positioning ring 24 can be pushed to the top of the chassis 2, so as to facilitate the placement of the asphalt mixture specimen into the middle of the positioning ring 24.

[0018] Two symmetrically distributed support columns 21 are fixedly installed on both sides of the chassis 2. By setting the support columns 21, the chassis 2 can be supported.

[0019] Four uniformly distributed rigid columns 221 are fixedly installed at the bottom end of the load-bearing platform 22, and the bottom ends of the four rigid columns 221 are all fixedly installed at the lower part of the chassis 2. By setting the rigid columns 221, the load-bearing platform 22 is supported by the rigid columns 221, so as to relieve the impact force of the hammer head 32.

[0020] A top plate 28 is fixedly installed at the top ends of the four support columns 21, and the top ends of the two lifting and positioning devices 25 are fixedly installed at the bottom end of the top plate 28. By setting the top plate 28, the support of the support columns 21 for the chassis 2 is more stable.

[0021] A first groove 241 is formed in the middle of the load-bearing platform 22, and the lower part of the positioning ring 24 is slidably clamped inside the first groove 241. By setting the first groove 241, when an impact test is carried out on the asphalt mixture specimen in the positioning ring 24, at this time, the lower part of the positioning ring 24 is slidably clamped inside the first groove 241, so that the positioning ring 24 is placed more stably, and the impact force received can be transmitted to the load-bearing platform 22.

[0022] A second groove 27 is formed in the upper part of the chassis 2. By setting the second groove 27, it can avoid the splashing of the debris of the asphalt mixture specimen outside the chassis 2 during impact.

[0023] A support 211 is fixedly installed at the bottom ends of the four support columns 21. By setting the support 211, the support of the chassis 2 by the support columns 21 is more stable.

[0024] Working principle: During actual use, place the asphalt mixture specimen at the center of the positioning ring 24 inside the chassis 2. Select the required type and specification of the hammer head 32 according to your own test requirements and install it below the hanging card 3. By operating the control console 1, control the lifting and positioning device 25, so that the hanging card 3 and the hammer head 32 are driven by the connecting bracket 31 to move upward to the required height. The asphalt mixture specimen is impacted by the falling of the hammer head 32, thereby conducting the test. The impact force when the hammer head 32 impacts the asphalt mixture specimen is collected by the sensor set inside the hanging card 3 and then fed back to the control console 1, thereby collecting test data;

[0025] After the impact test on the asphalt mixture specimen is completed, drive the positioning ring 24 to move upward by the electric push rod 23, so that the positioning ring 24 reaches the top of the chassis 2, thereby facilitating the staff to take out the asphalt mixture specimen inside the positioning ring 24.

[0026] Obviously, those skilled in the art can make various changes and modifications to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and its equivalent technologies, the present utility model also intends to include these modifications and variations.

Claims

1. An asphalt mixture impact testing machine, comprising a chassis (2), characterized in that: The upper part of the chassis (2) is provided with a load-bearing platform (22). At the top of the load-bearing platform (22), two mirror-distributed lifting and positioning devices (25) are fixedly installed. On the opposite sides of the two lifting and positioning devices (25), guide rails (26) are fixedly installed. At the upper part of the two guide rails (26), a connecting bracket (31) is installed. In the middle of the connecting bracket (31), a hanging clamp (3) is fixedly installed. At the lower part of the hanging clamp (3), a hammer head (32) is detachably provided. In the middle of the load-bearing platform (22), a positioning ring (24) is provided. On one side of the chassis (2), a control console (1) is fixedly installed.

2. The impact testing machine for asphalt mixture according to claim 1, characterized in that, At the lower part of the chassis (2), an electric push rod (23) is fixedly installed. The driving end of the electric push rod (23) penetrates through the load-bearing platform (22). The bottom end of the positioning ring (24) is fixedly installed at the driving end of the electric push rod (23).

3. The impact testing machine for asphalt mixture according to claim 1, wherein, On both sides of the chassis (2), two symmetrically distributed support columns (21) are fixedly installed.

4. The impact testing machine for asphalt mixture according to claim 1, characterized in that, At the bottom end of the load-bearing platform (22), four uniformly distributed rigid columns (221) are fixedly installed. The bottom ends of the four rigid columns (221) are all fixedly installed at the lower part of the chassis (2).

5. The impact testing machine for asphalt mixture according to claim 3, characterized in that, At the top ends of the four support columns (21), a top plate (28) is fixedly installed. The top ends of the two lifting and positioning devices (25) are fixedly installed at the bottom end of the top plate (28).

6. The impact testing machine for asphalt mixture according to claim 1, wherein, In the middle of the load-bearing platform (22), a first groove (241) is formed. The lower part of the positioning ring (24) is slidably clamped inside the first groove (241).

7. The impact testing machine for asphalt mixture according to claim 1, wherein, At the upper part of the chassis (2), a second groove (27) is formed.

8. The impact testing machine for asphalt mixture according to claim 3, wherein, At the bottom ends of the four support columns (21), supports (211) are fixedly installed.

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