Scraping equipment for asphalt ductility instrument

Abstract

The utility model relates to the technical field of asphalt ductility detection, and provides strickling equipment for an asphalt ductility meter, the strickling equipment comprises a base, a translation assembly, a lifting assembly and a scraper, the base is provided with a positioning groove, and the positioning groove is used for positioning a mold; the translation assembly comprises a ball screw, a ball nut and a rotating motor, the ball screw is rotationally connected to the base, the ball nut is slidably connected to the ball screw, and the rotating motor is connected with the ball screw and used for controlling the ball screw to rotate; the lifting assembly comprises a supporting frame, a driving part and a heating plate, the supporting frame is arranged on the ball nut, the driving part is connected with the heating plate and used for controlling the heating plate to move up and down, the scraper is detachably connected to the heating plate and located above the positioning groove, and the scraper is used for scraping asphalt on the mold to be flat. The asphalt slicking device has the effect of conveniently slicking asphalt on the mold.

Description

Technical Field

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

[0002] Ductility reflects the plastic deformation capacity of asphalt under tension. By measuring the ductility of asphalt, we can understand whether it is prone to brittle fracture at low temperatures and the degree of deformation it can withstand under tensile stress. The higher the ductility value, the better the flexibility of the asphalt, the stronger its resistance to deformation, and the better it can adapt to deformation and displacement caused by vehicle loads in road use, reducing the occurrence of cracks.

[0003] The asphalt ductility testing apparatus is used to determine the ductility of materials such as road petroleum asphalt, distillation residues of liquid asphalt, and evaporation residues of emulsified asphalt. Before the test, the asphalt needs to be poured into a mold, cooled, and then leveled. Excess asphalt on the mold is then scraped off with a scraper to make the asphalt inside the mold level with the upper surface of the mold.

[0004] like Figure 1 The mold shown is currently used to scrape the asphalt surface manually. This can cause workers to burn their hands, posing a safety hazard, and the scraping efficiency is low. Therefore, it needs to be improved. Utility Model Content

[0005] To facilitate the smoothing of asphalt on the mold and reduce the labor intensity of personnel, this application provides a smoothing device for an asphalt ductility tester.

[0006] The scraping device for an asphalt ductility tester provided in this application adopts the following technical solution:

[0007] A leveling device for an asphalt ductility tester includes a base, a translation component, a lifting component, and a scraper. The base has a positioning groove for positioning a mold.

[0008] The translation assembly includes a ball screw, a ball nut, and a rotary motor. The ball screw is rotatably connected to the base, the ball nut is slidably connected to the ball screw, and the rotary motor is connected to the ball screw and used to control the rotation of the ball screw.

[0009] The lifting assembly includes a support frame, a drive component, and a heating plate. The support frame is mounted on the ball nut, the drive component is mounted on the support frame and connected to the heating plate, and the drive component is used to control the up and down movement of the heating plate. The scraper is detachably connected to the heating plate and is located above the positioning groove. The scraper is used to smooth the asphalt on the mold.

[0010] By adopting the above technical solution, during the test, the operator places the mold in the positioning groove and then pours asphalt into the mold cavity. Next, the drive unit controls the scraper to move towards the mold, while a rotary motor controls the rotation of the ball screw. The movement of the ball screw is converted into the linear movement of the ball nut, thereby driving the entire lifting assembly to move horizontally. This effectively and smoothly scrapes the asphalt on the mold surface with the scraper. The heating plate heats the scraper, ensuring its effectiveness in removing asphalt.

[0011] Preferably, the driving component is a linear cylinder, and the heating plate is detachably connected to the piston rod of the linear cylinder.

[0012] By adopting the above technical solution, the heating plate can be detachably connected to the piston rod of the linear cylinder, making it convenient for staff to remove the heating plate for repair when it malfunctions.

[0013] Preferably, the device further includes a fixing block and a ball bearing. The fixing block is connected to one side of the heating plate, the outer ring of the ball bearing is connected to the fixing block, and the inner ring of the ball bearing is connected to an internal threaded sleeve, which is screwed onto the piston rod.

[0014] By adopting the above technical solution, when the heating plate needs to be installed, the worker supports the heating plate with one hand and aligns and screws the internal threaded sleeve onto the piston rod with the other hand. Due to the presence of the ball bearing, when the internal threaded sleeve rotates, the fixing block will not rotate and will not interfere with the rotation of the internal threaded sleeve.

[0015] Preferably, the heating plate has a plurality of posts at one end away from the fixing block, the scraper is inserted into the posts and fits against the heating plate, and a nut is screwed onto the posts for locking the scraper.

[0016] By adopting the above technical solution, when the scraper needs to be installed, it is first inserted into each of the insertion posts, so that the scraper and the heating plate are in contact. Then, the nut is screwed onto the insertion post to complete the attachment of the scraper. Since the scraper is detachably connected to the heating plate, it can be replaced if it is damaged.

[0017] Preferably, two sets of translation components are symmetrically arranged, and the support frame is connected to the two ball nuts.

[0018] By adopting the above technical solution, the two translation components jointly control the horizontal movement of the support frame, thereby improving the stability of the support frame during movement.

[0019] Preferably, it further includes a clamping component, which is located near the positioning groove and is used to clamp the mold.

[0020] By adopting the above technical solution, the clamping component can clamp the mold, thereby improving the stability of the mold in the positioning groove.

[0021] Preferably, the clamping assembly includes a clamping cylinder and a clamping block, the clamping block being connected to the piston rod of the clamping cylinder, and the clamping assembly having two sets, the two clamping blocks being used to clamp the mold.

[0022] By adopting the above technical solution, when it is necessary to clamp the mold, the clamping cylinder is operated to control the pressure block to approach the mold, and the mold is clamped under the action of the two pressure blocks.

[0023] Preferably, an isolation layer is provided on the inner wall of the positioning groove.

[0024] By adopting the above technical solution, the isolation layer can act as an isolation barrier, preventing asphalt from directly contacting the base and thus avoiding asphalt adhesion.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] (1) By setting up a translation component, a lifting component and a scraper, the lifting component can drive the scraper to move up and down, so that the scraper is close to the mold; the translation component can control the horizontal movement of the entire lifting component and the scraper, so that the scraper can smoothly scrape the asphalt on the surface of the mold.

[0027] (2) By setting the heating plate to be detachably connected to the linear cylinder, when the heating plate fails, it is convenient for the staff to remove the heating plate for repair.

[0028] (3) By setting up a clamping component, the clamping component can clamp the mold and improve the stability of the mold in the positioning groove. When the scraper is performing the scraping operation, the mold is less likely to shift in position. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the mold structure in the background art of this application;

[0030] Figure 2 This is a schematic diagram of the structure of the leveling device in the embodiments of this application;

[0031] Figure 3 This is a schematic diagram of the lifting component in an embodiment of this application;

[0032] Figure 4 This is a structural schematic diagram of the lifting component from another perspective in an embodiment of this application.

[0033] Reference numerals: 1. Base; 2. Translation assembly; 21. Ball screw; 22. Ball nut; 23. Rotary motor; 3. Lifting assembly; 31. Support frame; 32. Drive component; 33. Heating plate; 4. Scraper; 5. Positioning groove; 6. Fixing block; 7. Internal threaded sleeve; 8. Insert post; 9. Pressing assembly; 91. Pressing cylinder; 92. Pressing block. Detailed Implementation

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] This application discloses a leveling device for an asphalt ductility tester. (Refer to...) Figure 2 and Figure 3The leveling device includes a base 1, a translation component 2, a lifting component 3, and a scraper 4. The base 1 serves as a support carrier and has a positioning groove 5 for positioning the mold. In some embodiments, the inner wall of the positioning groove 5 is also coated with an isolation layer to reduce the possibility of asphalt adhering to the base 1.

[0040] The translation component 2 is mounted on the base 1 and close to the positioning groove 5. The translation component 2 includes a ball screw 21, a ball nut 22, and a rotary motor 23. The ball screw 21 is rotatably connected to the base 1, and the ball nut 22 is slidably connected to the ball screw 21. The ball nut 22 moves linearly along the length of the ball screw 21. The rotary motor 23 is connected to one end of the ball screw 21 and is used to control the rotation of the ball screw 21. The rotation of the ball screw 21 can be converted into the linear motion of the ball nut 22. As shown in the figure, two sets of translation components 2 are arranged in parallel, with each set located on one side of the positioning groove 5.

[0041] The lifting assembly 3 includes a support frame 31, a drive component 32, and a heating plate 33. The support frame 31 is U-shaped and fixedly connected to two ball nuts 22. The drive component 32 is mounted on the support frame 31, and the heating plate 33 is connected to the drive component 32. The drive component 32 controls the up-and-down movement of the heating plate 33. A scraper 4 is detachably connected to the heating plate 33 and is located above the positioning groove 5. The scraper 4 is used to smooth the asphalt on the mold, and the heating plate 33 is used to heat the scraper 4. The scraper 4 is heated before scraping the asphalt to ensure the effectiveness of the asphalt removal.

[0042] During the test, the staff placed the mold in the positioning groove 5 and then poured asphalt into the mold cavity. Next, the drive component 32 was used to control the scraper 4 to move in the direction close to the mold, at which point the scraper 4 was on the upper surface of the mold; at the same time, the rotary motor 23 was used to control the ball screw 21 to rotate, and the movement of the ball screw 21 was converted into the linear movement of the ball nut 22, thereby driving the entire lifting assembly 3 to move horizontally. In this way, the scraper 4 can be effectively driven to smoothly scrape the asphalt on the surface of the mold.

[0043] Specifically, the drive component 32 is a linear cylinder, and the heating plate 33 is detachably connected to the piston rod of the linear cylinder. When the heating plate 33 malfunctions, it is convenient for staff to remove it for repair. The linear cylinder has a stroke control mechanism and a locking mechanism. The stroke control mechanism can control the cylinder 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 scraper 4, allowing the scraper 4 to scrape away asphalt. 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 upon here. A fixing block 6 is fixedly connected to one side of the heating plate 33. A ball bearing is embedded in the fixing block 6. The outer ring of the ball bearing is connected to the fixing block 6, and the inner ring of the ball bearing is connected to an internal threaded sleeve 7, which is screwed onto the piston rod. When the heating plate 33 needs to be installed, the worker supports the heating plate 33 with one hand and aligns the internal threaded sleeve 7 with the other hand and screws it onto the piston rod. Due to the presence of the ball bearing, when the internal threaded sleeve 7 rotates, the fixing block 6 will not rotate and will not interfere with the rotation of the internal threaded sleeve 7.

[0044] Combination Figure 4 Several insertion posts 8 are fixedly connected to the end of the heating plate 33 away from the fixing block 6. Several insertion holes are opened through the scraper 4 for the insertion posts 8 to pass through. The scraper 4 is in close contact with the heating plate 33 by insertion. A nut is screwed to the end of the insertion post 8 away from the heating plate 33. The nut is used to lock the scraper 4, so that the scraper 4 can be fixed on the heating plate 33.

[0045] When installing the scraper 4, first insert the scraper 4 into each of the insertion posts 8, so that the scraper 4 and the heating plate 33 are in contact, and the scraper 4 is heated by heat transfer. Then, screw the nut into the insertion post 8 to complete the installation of the scraper 4. Since the scraper 4 is detachably connected to the heating plate 33, it can be replaced if it is damaged.

[0046] In addition, a clamping assembly 9 is installed on the base 1. The clamping assembly 9 is close to the positioning groove 5 and is used to clamp the mold. The clamping assembly 9 includes a clamping cylinder 91 and a clamping block 92. The clamping block 92 moves horizontally, and the direction of movement of the clamping block 92 is parallel to the direction of movement of the ball nut 22. The clamping cylinder 91 is fixed on the base 1, and the piston rod is connected to the clamping block 92. The clamping cylinder 91 is used to control the movement of the clamping block 92 and press it against the mold. The clamping cylinder 91 also has a stroke control mechanism and a locking mechanism, so that the clamping block 92 can provide a continuous and stable clamping force. In this embodiment, two sets of clamping assemblies 9 are symmetrically arranged. The two clamping blocks 92 clamp the two ends of the mold together, which improves the stability of the mold in the positioning groove 5. When the scraper 4 is performing the scraping operation, the mold is less likely to shift position.

[0047] The implementation principle of a leveling device for an asphalt ductility tester according to an embodiment of this application is as follows: During the test, the operator precisely places the mold in the positioning groove 5, and then injects asphalt into the mold cavity. Next, the drive component 32 controls the scraper 4 to move towards the mold, while simultaneously, the rotary motor 23 drives the ball screw 21 to rotate. In this process, the rotation of the ball screw 21 is converted into the linear displacement of the ball nut 22, which in turn drives the entire lifting assembly 3 to move smoothly, ultimately enabling the scraper 4 to effectively level the asphalt on the mold surface.

[0048] 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 leveling device for an asphalt ductility tester, characterized in that, It includes a base (1), a translation component (2), a lifting component (3) and a scraper (4). The base (1) is provided with a positioning groove (5), which is used to position the mold. The translation component (2) includes a ball screw (21), a ball nut (22), and a rotary motor (23). The ball screw (21) is rotatably connected to the base (1), the ball nut (22) is slidably connected to the ball screw (21), and the rotary motor (23) is connected to the ball screw (21) and is used to control the rotation of the ball screw (21). The lifting assembly (3) includes a support frame (31), a drive component (32), and a heating plate (33). The support frame (31) is mounted on the ball nut (22). The drive component (32) is mounted on the support frame (31) and connected to the heating plate (33). The drive component (32) is used to control the heating plate (33) to move up and down. The scraper (4) is detachably connected to the heating plate (33) and located above the positioning groove (5). The scraper (4) is used to scrape the asphalt on the mold.

2. The leveling device for an asphalt ductility tester according to claim 1, characterized in that, The driving component (32) is a linear cylinder, and the heating plate (33) is detachably connected to the piston rod of the linear cylinder.

3. A leveling device for an asphalt ductility tester according to claim 2, characterized in that, It also includes a fixing block (6) and a ball bearing. The fixing block (6) is connected to one side of the heating plate (33). The outer ring of the ball bearing is connected to the fixing block (6). The inner ring of the ball bearing is connected to an internal threaded sleeve (7). The internal threaded sleeve (7) is screwed to the piston rod.

4. A leveling device for an asphalt ductility tester according to claim 3, characterized in that, The heating plate (33) has several posts (8) at one end away from the fixing block (6). The scraper (4) is inserted into the posts (8) and attached to the heating plate (33). Nuts are screwed onto the posts (8) and the nuts are used to lock the scraper (4).

5. A leveling device for an asphalt ductility tester according to claim 1, characterized in that, The translation component (2) is symmetrically arranged in two sets, and the support frame (31) is connected to the two ball nuts (22).

6. A leveling device for an asphalt ductility tester according to claim 1, characterized in that, It also includes a clamping assembly (9) which is located near the positioning groove (5) and is used to clamp the mold.

7. A leveling device for an asphalt ductility tester according to claim 6, characterized in that, The clamping assembly (9) includes a clamping cylinder (91) and a clamping block (92). The clamping block (92) is connected to the piston rod of the clamping cylinder (91). The clamping assembly (9) is provided with two sets of clamping blocks (92) for clamping the mold.

8. A leveling device for an asphalt ductility tester according to claim 1, characterized in that, An isolation layer is provided on the inner wall of the positioning groove (5).

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