Scraper equipment for asphalt ductility instrument

Abstract

The utility model relates to the technical field of asphalt ductility detection, and provides a scraper device for an asphalt ductility meter, the scraper device comprises a supporting seat, positioning assemblies, a lifting assembly and a scraping assembly, the supporting seat is used for placing a mold, the positioning assemblies are arranged on the supporting seat and close to the two ends of the mold, and the positioning assemblies are used for pressing the mold; the lifting assembly is arranged on the supporting seat, the scraping assembly is connected with the lifting assembly, and the lifting assembly is used for controlling the scraping assembly to move up and down; the scraping assembly comprises a linear air cylinder, a heating plate and a scraper body, the heating plate is connected to a piston rod of the linear air cylinder, the scraper body is detachably connected to the heating plate, the scraper body is used for scraping asphalt on a mold, and the linear air cylinder is used for controlling the scraper body to move horizontally. The asphalt trimming device has the effect of conveniently trimming asphalt on the mold.

Description

Technical Field

[0001] This application relates to the field of asphalt ductility testing technology, and in particular to a scraper device for an asphalt ductility tester. Background Technology

[0002] Asphalt ductility refers to the ductility of asphalt. The greater the ductility, the better the plasticity of the asphalt. The basic procedure for this test is as follows: First, the molten sample is injected into a special mold, cooled at room temperature, and then placed in a water bath maintained at the test temperature to cool. The sample that protrudes above the mold is cut off with a hot knife. The mold is then placed back into the water bath. After a certain period of time, the sample is transferred to a ductility tester. The asphalt specimen is stretched at a certain temperature and speed to the length at which it breaks, which is the ductility of the asphalt specimen.

[0003] Existing molds for asphalt ductility testing require scraping off excess asphalt. During scraping, the hot scraper must be in close contact with the upper surface of the mold to ensure a smooth surface for the asphalt specimen. Current technology primarily relies on manual methods for surface finishing of the asphalt. Because the hot scraper is hot, workers may burn their hands when handling it, posing a safety hazard. Furthermore, the finishing efficiency is low, thus requiring improvement. Utility Model Content

[0004] To facilitate the trimming of asphalt on the mold, this application provides a scraper device for an asphalt ductility tester.

[0005] The scraper device for an asphalt ductility tester provided in this application adopts the following technical solution:

[0006] A scraper device for an asphalt ductility tester includes a support base, a positioning component, a lifting component, and a scraping component. The support base is used for placing a mold, and the positioning component is disposed on the support base and close to both ends of the mold. The positioning component is used to press the mold.

[0007] The lifting assembly is mounted on the support base, and the scraping assembly is connected to the lifting assembly. The lifting assembly is used to control the scraping assembly to move up and down. The scraping assembly includes a linear cylinder, a heating plate, and a scraper body. The heating plate is connected to the piston rod of the linear cylinder, and the scraper body is detachably connected to the heating plate. The scraper body is used to scrape off the asphalt on the mold, and the linear cylinder is used to control the horizontal movement of the scraper body.

[0008] By adopting the above technical solution, when asphalt needs to be scraped off, the worker places the mold containing asphalt stably on the support base, and then uses the positioning component to press the mold firmly onto the support base, thus fixing the mold. Next, the lifting component is used to adjust the vertical height of the scraping component from the support base, ensuring that the cutting surface of the scraper body is in close contact with the upper surface of the mold. After adjusting to the appropriate position, a linear cylinder is used to control the scraper body to move horizontally, thereby scraping off excess asphalt from the mold and ensuring the smoothness of the mold surface. The heating plate can heat the scraper body; the heat generated by the heating plate itself can be transferred to the scraper body through heat transfer, ensuring the scraping effect of the scraper body.

[0009] Preferably, the positioning assembly includes a pneumatic cylinder and a positioning block, the positioning block being connected to the piston rod of the pneumatic cylinder, the positioning block being used to press the end of the mold, and the pneumatic cylinder having a stroke control mechanism.

[0010] By adopting the above technical solution, after the mold is placed on the support base, the pneumatic cylinder controls the positioning block to move vertically downwards, so that the positioning block fits into contact with the end of the mold. The two positioning blocks act on both ends of the mold respectively, realizing the positioning of the mold. Since the pneumatic cylinder has a stroke control mechanism, the stroke control mechanism can control the cylinder piston rod to stop at a predetermined position, realizing precise mechanical actions (such as clamping, pushing, lifting, etc.), and can provide continuous, stable and reliable pressure to the positioning block. Typical stroke control mechanisms include, but are not limited to, mechanical stops, magnetic switches with solenoid valves, and displacement sensors with controllers. These are existing technologies and will not be elaborated here.

[0011] Preferably, the positioning block has friction texture on the side facing the support base.

[0012] By adopting the above technical solution, the friction texture can increase the roughness of the contact between the positioning block and the mold, thereby increasing the static friction force and improving the clamping effect of the positioning component.

[0013] Preferably, a sleeve portion is provided on one side of the heating plate. The sleeve portion is sleeved on the piston rod of the linear cylinder and fixed by a T-shaped pin. The T-shaped pin passes through the sleeve portion and the piston rod of the linear cylinder.

[0014] By adopting the above technical solution, when the heating plate needs to be installed, the sleeve is first inserted into the piston rod of the linear cylinder, and then a T-shaped pin is inserted from top to bottom through the sleeve and the piston rod, thereby preventing the sleeve from detaching from the piston rod. The T-shaped pin will not spontaneously detach from the piston rod without external force. When the heating plate is damaged, it can be removed from the piston rod for easy maintenance by personnel.

[0015] Preferably, the heating plate is inclined, the scraper body is also inclined and is attached to the heating plate, and the scraper body is locked to the heating plate by bolts and nuts.

[0016] By adopting the above technical solution, the scraper body is attached to the heating plate, and the contact area between the two is large, which facilitates the transfer of heat generated by the heating plate to the scraper body. The scraper body is tilted so that the cutting surface of the scraper body and the upper end face of the mold form an acute angle, which facilitates better scraping. The scraper body is locked to the heating plate with bolts and nuts, making the scraper body detachable. When the scraper body is damaged, it can be replaced.

[0017] Preferably, the heating plate has a plurality of first teeth on the side away from the linear cylinder, and the scraper body has a plurality of second teeth on the side facing the heating plate, wherein the second teeth and the first teeth mesh with each other.

[0018] By adopting the above technical solution, the first tooth and the second gear mesh together, which can increase the contact area between the scraper body and the heating plate and improve the stability of their connection.

[0019] Preferably, the lifting assembly includes a lifting cylinder and a lifting seat, the lifting seat is disposed on the piston rod of the lifting cylinder, the linear cylinder is disposed on the lifting seat, and the lifting cylinder has a stroke control mechanism.

[0020] By adopting the above technical solution, the lifting seat serves as a carrier for installing the scraping assembly. The lifting cylinder can control the up-and-down movement of the lifting seat, thereby changing the vertical distance between the scraping assembly and the support base. Simultaneously, because the lifting cylinder has a stroke control mechanism, it can control the cylinder piston rod to stop at a predetermined position, achieving precise mechanical actions (such as clamping, pushing, and lifting), thus providing continuous, stable, and reliable pressure to the lifting seat and preventing positional deviation.

[0021] Preferably, it also includes a guide seat, the guide seat having a guide groove in the vertical direction, and the lifting seat being slidably connected to the guide groove.

[0022] By adopting the above technical solution, the lifting seat is slidably connected to the guide seat, which can guide and limit the lifting seat, thereby improving the stability of the lifting seat when it moves up and down.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] (1) By setting up a support base, positioning component, lifting component and scraping component, when it is necessary to scrape off the asphalt, the worker places the mold with asphalt on the support base steadily, then uses the positioning component to press the mold firmly on the support base, and then uses the lifting component to adjust the vertical height of the scraping component from the support base so that the cutting surface of the scraper body is close to the upper surface of the mold. Finally, the linear cylinder is used to control the scraper body to move in the horizontal direction, thereby scraping off the excess asphalt from the mold.

[0025] (2) By setting friction textures on the positioning block. Friction textures can increase the static friction between the positioning block and the upper surface of the mold, thereby improving the stability of their connection.

[0026] (3) By setting a guide seat, the guide seat can guide and limit the movement of the lifting seat, thereby improving the stability of the lifting seat when it moves. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the scraper device in the embodiments of this application;

[0028] Figure 2 This is a partial structural schematic diagram of the scraper device in the embodiments of this application;

[0029] Figure 3 yes Figure 1 An enlarged schematic diagram of part A in the middle.

[0030] Reference numerals: 1. Support base; 2. Positioning assembly; 21. Pneumatic cylinder; 22. Positioning block; 3. Lifting assembly; 31. Lifting cylinder; 32. Lifting seat; 4. Scraping assembly; 41. Linear cylinder; 42. Heating plate; 43. Scraper body; 5. Guide seat; 6. Sleeve part; 7. T-pin; 8. First tooth pattern; 9. Second tooth pattern; 10. Mold. Detailed Implementation

[0031] The technical solutions of this application will now be described with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can be embodied in many different forms and is not limited to the embodiments described herein.

[0032] In the representation of this application, the reference to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., means that a specific feature, structure, material, or characteristic represented in connection with that embodiment or example is included in at least one embodiment or example of this application. Moreover, the specific features, structures, materials, or characteristics represented may be combined in any suitable manner in one or more embodiments or examples.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0034] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection; a detachable connection; an integral part; or a mechanical connection. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0035] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Without conflict, those skilled in the art can combine and integrate the different embodiments or examples shown in this application, as well as the features of those embodiments or examples.

[0036] This application discloses a scraper device for an asphalt ductility tester. (Refer to...) Figure 1 and Figure 2 The scraping device includes a support base 1, a positioning assembly 2, a lifting assembly 3, and a scraping assembly 4. The support base 1 serves as a carrier for placing the mold 10. A positioning groove, identical in shape to the mold 10, can be formed on the support surface of the support base 1 to position the mold 10. The positioning assemblies 2 are mounted on the support base 1 and located near both ends of the mold 10. The two sets of positioning assemblies 2 work together to press the mold 10.

[0037] The positioning assembly 2 includes a pneumatic cylinder 21 and a positioning block 22. The pneumatic cylinder 21 is fixed on the support base 1. The positioning block 22 is connected to the piston rod of the pneumatic cylinder 21 and is located above the pneumatic cylinder 21. The positioning block 22 is used to press the end of the mold 10. After the mold 10 is placed on the support base 1, the pneumatic cylinder 21 controls the positioning block 22 to move vertically downward, so that the positioning block 22 fits against the end of the mold 10. The two positioning blocks 22 act on both ends of the mold 10 respectively, realizing the positioning of the mold 10. The pneumatic cylinder 21 has a stroke control mechanism, which can control the cylinder piston rod to stop at a predetermined position to realize precise mechanical actions (such as clamping, pushing, lifting, etc.), and can provide continuous, stable and reliable pressure to the positioning block 22, so that the positioning block 22 presses the mold 10. Typical stroke control mechanisms include, but are not limited to, mechanical stops, magnetic switches with solenoid valves, and displacement sensors with controllers. These are existing technologies and will not be described in detail here.

[0038] In some embodiments, the positioning block 22 has friction textures (not shown) on the side surface facing the mold 10. The friction textures can increase the roughness of the contact between the positioning block 22 and the mold 10, thereby increasing the static friction force and improving the clamping effect of the positioning component 2.

[0039] The lifting assembly 3 is mounted on the support base 1. The lifting assembly 3 includes a lifting cylinder 31 and a lifting seat 32. The lifting cylinder 31 is fixed to the support base 1, and the lifting seat 32 is connected to the piston rod of the lifting cylinder 31. The lifting cylinder 31 controls the vertical movement of the lifting seat 32. The lifting cylinder 31 has a stroke control mechanism. This mechanism can control the piston rod to stop at a predetermined position, achieving precise mechanical actions (such as clamping, pushing, lifting, etc.), and providing continuous, stable, and reliable pressure to the lifting seat 32, preventing positional deviation of the lifting seat 32.

[0040] In some embodiments, a guide seat 5 is also fixedly installed on the support base 1. The guide seat 5 has a guide groove in the vertical direction, and a guide block is correspondingly provided on the lifting seat 32. The guide block is located in the guide groove, so that the lifting seat 32 is slidably connected to the guide seat 5. The guide seat 5 can guide and limit the lifting seat 32, thereby improving the stability of the lifting seat 32 when it moves up and down.

[0041] The scraping assembly 4 is mounted on the lifting base 32, which drives the scraping assembly 4 to move up and down. The scraping assembly 4 includes a linear cylinder 41, a heating plate 42, and a scraper body 43. The heating plate 42 is detachably connected to the piston rod of the linear cylinder 41, and the scraper body 43 is detachably connected to the heating plate 42. The scraper body 43 is used to scrape the asphalt on the mold 10, and the linear cylinder 41 is used to control the horizontal movement of the scraper body 43. The heating plate 42 can heat the scraper body 43, and the heat generated by the heating plate 42 itself can be transferred to the scraper body 43 to ensure the scraping effect of the scraper body 43.

[0042] When asphalt needs to be scraped off, the worker places the mold 10 containing asphalt steadily on the support base 1. Then, the positioning component 2 is used to press the mold 10 firmly onto the support base 1, thus fixing the mold 10. Next, the lifting component 3 is used to adjust the vertical height of the scraping component 4 from the support base 1, so that the cutting surface of the scraper body 43 is in close contact with the upper surface of the mold 10. After adjusting to the appropriate position, the linear cylinder 41 is used to control the scraper body 43 to move horizontally, thereby scraping off the excess asphalt from the mold 10 and ensuring the flatness of the mold 10 surface.

[0043] Specifically, a sleeve portion 6 is fixedly connected to one side of the heating plate 42. The sleeve portion 6 is fitted onto the piston rod of the linear cylinder 41 and secured by a T-shaped pin 7. The T-shaped pin 7 passes through the sleeve portion 6 and the piston rod of the linear cylinder 41, and both the sleeve portion 6 and the piston rod have pre-drilled through holes for the T-shaped pin 7 to pass through. When the heating plate 42 needs to be installed, the sleeve portion 6 is first inserted into the piston rod of the linear cylinder 41, and then the T-shaped pin 7 passes through the sleeve portion 6 and the piston rod from top to bottom, thereby preventing the sleeve portion 6 from detaching from the piston rod. The T-shaped pin 7 will not detach from the piston rod spontaneously without external force. When the heating plate 42 is damaged, it can be removed from the piston rod for easy maintenance by personnel.

[0044] In this embodiment, the heating plate 42 is inclined, and the scraper body 43 is also inclined and closely connected to the heating plate 42, resulting in a large contact area between the two, which facilitates the transfer of heat generated by the heating plate 42 to the scraper body 43. Simultaneously, the inclined arrangement of the scraper body 43 creates an acute angle between its cutting surface and the upper surface of the mold 10, allowing for better scraping. The scraper body 43 is secured to the heating plate 42 by bolts and nuts. The bolts pass through both the heating plate 42 and the scraper body 43, and are then screwed into the nuts, allowing for the detachment of the heating plate 42 and the scraper body 43 by the screw force. When the scraper body 43 is damaged, it can be replaced.

[0045] Combination Figure 3 In addition, the heating plate 42 is provided with a number of first teeth 8 on the side away from the linear cylinder 41, and the scraper body 43 is provided with a number of second teeth 9 on the side facing the heating plate 42. The second teeth 9 and the first teeth 8 mesh together, which can increase the contact area between the scraper body 43 and the heating plate 42, improve the stability of the connection between the two, and make it less likely for the scraper body 43 to move on the heating plate 42.

[0046] The implementation principle of the scraper device for an asphalt ductility tester in this embodiment is as follows: During asphalt scraping, the operator places the asphalt-coated mold 10 stably on the support base 1, and then uses the positioning component 2 to firmly press the mold 10 against the support base 1 to achieve stable fixation of the mold 10. Then, the vertical height of the scraping component 4 relative to the support base 1 is adjusted by the lifting component 3, so that the cutting surface of the scraper body 43 closely fits the upper surface of the mold 10. After precise positioning, the linear cylinder 41 is activated to move the scraper body 43 horizontally, thereby scraping away excess asphalt on the mold 10 and ensuring that the surface of the mold 10 is flat. Furthermore, the heating plate 42 heats the scraper body 43, and the heat generated by the heating plate 42 is conducted to the scraper body 43 through heat transfer, thus ensuring the scraping effect of the scraper body 43.

[0047] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A scraper device for an asphalt ductility tester, characterized in that, It includes a support base (1), a positioning component (2), a lifting component (3) and a scraping component (4). The support base (1) is used for placing the mold (10). The positioning component (2) is located on the support base (1) and close to both ends of the mold (10). The positioning component (2) is used to press the mold (10). The lifting assembly (3) is mounted on the support base (1), and the scraping assembly (4) is connected to the lifting assembly (3). The lifting assembly (3) is used to control the scraping assembly (4) to move up and down. The scraping assembly (4) includes a linear cylinder (41), a heating plate (42), and a scraper body (43). The heating plate (42) is connected to the piston rod of the linear cylinder (41), and the scraper body (43) is detachably connected to the heating plate (42). The scraper body (43) is used to scrape the asphalt on the mold (10), and the linear cylinder (41) is used to control the scraper body (43) to move horizontally.

2. The scraper device for an asphalt ductility tester according to claim 1, characterized in that, The positioning component (2) includes a pneumatic cylinder (21) and a positioning block (22). The positioning block (22) is connected to the piston rod of the pneumatic cylinder (21). The positioning block (22) is used to press the end of the mold (10). The pneumatic cylinder (21) has a stroke control mechanism.

3. The scraper device for an asphalt ductility tester according to claim 2, characterized in that, The positioning block (22) has friction texture on the side facing the support base (1).

4. The scraper device for an asphalt ductility tester according to claim 1, characterized in that, A sleeve portion (6) is provided on one side of the heating plate (42). The sleeve portion (6) is sleeved on the piston rod of the linear cylinder (41) and fixed by a T-shaped pin (7). The T-shaped pin (7) passes through the sleeve portion (6) and the piston rod of the linear cylinder (41).

5. The scraper device for an asphalt ductility tester according to claim 1, characterized in that, The heating plate (42) is inclined, and the scraper body (43) is also inclined and attached to the heating plate (42). The scraper body (43) is locked to the heating plate (42) by bolts and nuts.

6. The scraper device for an asphalt ductility tester according to claim 5, characterized in that, The heating plate (42) has a plurality of first teeth (8) on the side away from the linear cylinder (41), and the scraper body (43) has a plurality of second teeth (9) on the side facing the heating plate (42). The second teeth (9) and the first teeth (8) mesh with each other.

7. The scraper device for an asphalt ductility tester according to claim 1, characterized in that, The lifting assembly (3) includes a lifting cylinder (31) and a lifting seat (32). The lifting seat (32) is located on the piston rod of the lifting cylinder (31), and the linear cylinder (41) is located on the lifting seat (32). The lifting cylinder (31) has a stroke control mechanism.

8. The scraper device for an asphalt ductility tester according to claim 7, characterized in that, It also includes a guide seat (5), which has a guide groove in the vertical direction, and the lifting seat (32) is slidably connected to the guide groove.

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