Electric heating scraper for asphalt raw material test detection

Abstract

The utility model belongs to the technical field of asphalt test, and discloses an electric heating scraper for asphalt raw material test detection, which comprises a shell, a cutter head component is arranged in the shell, an adjusting and positioning component is connected between the shell and the cutter head component, a heating disc positioned at the top of the cutter head component is arranged in the shell, and a heating plate is arranged on the top of the heating disc. A heater is fixedly connected to the top of the shell, a transmission line is fixedly connected into the heater in a sleeved mode, and the transmission line is connected with the heating disc through the heater. Due to the arrangement of the polygonal cutter head, under the cooperation of the shell and the adjusting and positioning assembly, a worker can conveniently rotate the whole cutter head assembly, then different scraper bodies are rotated to the lower portion of the shell so that asphalt protruding out of the top of a test mold can be scraped, meanwhile, the upper scraper body is rotated into the heating disc, and the heating efficiency is improved. And the effect that scraping and heating are conducted synchronously is achieved, and the operation efficiency is effectively improved.

Description

Technical Field

[0001] This utility model belongs to the field of asphalt testing technology, specifically an electrically heated scraper for testing and inspecting asphalt raw materials. Background Technology

[0002] In the asphalt ductility test, take an appropriate amount of liquid asphalt and inject it into the mold, ensuring it is slightly higher than the top of the mold. After cooling, scrape off the asphalt above the top of the mold with a scraper. Then, place the mold and base plate into a constant temperature water bath. After standing, remove the base plate and side molds and install the two end molds and the pattern between them onto the ductility meter. Start the ductility meter and observe the asphalt ductility. Finally, obtain the test data through measurement.

[0003] However, when using existing asphalt testing scrapers to remove asphalt, the temperature of the hot scraper drops significantly, requiring it to be reheated on an electric furnace before scraping the next sample. This necessitates repeated heating of the iron scraper in an electric furnace, greatly reducing testing efficiency. Furthermore, when using the scraper to remove asphalt, the asphalt adheres to the scraper and even the handle, which can easily damage the sample. Therefore, it is necessary to develop a new type of electric heating scraper for testing asphalt raw materials. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides an electrically heated scraper for testing asphalt raw materials, which has the advantages of high efficiency and automatic cleaning.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an electrically heated scraper for testing asphalt raw materials, comprising a housing, a cutter disc assembly disposed inside the housing, an adjustment and positioning assembly connected at the middle of the housing and the cutter disc assembly, a heating plate located at the top of the cutter disc assembly disposed inside the housing, a heater fixedly connected to the top of the housing, a transmission line fixedly sleeved inside the heater, and the transmission line connected to the heating plate through the heater;

[0006] The cutter head assembly includes a polygonal cutter head connected to the inside of the housing by a movable shaft. A disassembly frame is fixedly sleeved on the side of the polygonal cutter head. Several disassembly strips are evenly distributed inside the disassembly frame. The disassembly frame is fixed to the disassembly strips by bolts. One side of the disassembly strip extends to the outside of the disassembly frame and is integrally formed with a scraper body. The heating plate is covered on the outside of the top scraper body, and the bottom disassembly strip extends to the lower part of the housing.

[0007] Preferably, the bottom of the housing is a flat surface, and one scraper body at the bottom of the cutter disc assembly rotates with the polygonal cutter disc to a position below the bottom flat surface of the housing.

[0008] Preferably, the interior of the housing is provided with a slag removal component away from the vertical centerline. One end of the slag removal component is fixedly connected to the side of the inner wall of the housing, and the other end of the slag removal component is attached to the surface of the disassembly frame and the scraper body. The side of the housing is provided with a slag discharge port located between the bottom plane and the slag removal component.

[0009] Preferably, the adjustment and positioning assembly includes a drive shaft rotatably sleeved in the middle of the housing, the middle part of the drive shaft being fixedly sleeved in the middle of the polygonal cutter head, and both ends of the drive shaft extending to the front and rear sides of the housing respectively and each being fixedly connected to an adjustment knob.

[0010] Preferably, the adjustment knob is provided with a plurality of inner spring blocks and outer spring blocks that are evenly distributed outside the drive shaft. The plurality of inner spring blocks and outer spring blocks correspond one-to-one and are alternately distributed. Adjacent inner spring blocks and outer spring blocks are tightly packed together. The plurality of inner spring blocks and outer spring blocks correspond one-to-one with the scraper body.

[0011] Preferably, a plurality of the outer spring blocks are fixedly connected to the inner wall of the adjusting knob, and a fixing ring is sleeved on the outside of the transmission shaft between the adjusting knob and the housing. One end of the fixing ring is fixedly connected to the housing, and the other end of the fixing ring is fixedly connected to the back of the plurality of inner spring blocks.

[0012] Preferably, the slag removal assembly includes a scraper movably installed inside the housing. The side of the scraper near the scraper body is inclined. A fitting scraping surface is provided at the bottom of the inclined side of the scraper near the scraper body. The fitting scraping surface is slidably fitted to the front of the scraper body. A fitting abutment surface is provided at one end of the inclined side of the scraper near the scraper body. The fitting abutment surface is slidably fitted to the side of the disassembly frame.

[0013] Preferably, the scraper has a groove inside, and a slider is slidably sleeved inside the groove. One end of the slider is fixedly connected to a connecting rod, and the other end of the connecting rod extends to the outside of the scraper and is fixedly connected to the inner wall of the housing. A positioning spring is provided inside the groove at the other end of the slider, and the two ends of the positioning spring abut against the inner wall of the groove and one end of the slider, respectively.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. Due to the polygonal cutter head design, this utility model, in conjunction with the housing and adjustment and positioning components, facilitates the operator to rotate the entire cutter head assembly, thereby rotating different scraper bodies to the bottom of the housing to scrape off the asphalt protruding from the top of the mold. At the same time, one of the upper scraper bodies rotates into the heating plate for heating, achieving the effect of simultaneous scraping and heating, effectively improving operating efficiency.

[0016] 2. Due to the slag removal component, this utility model can remove the asphalt adhering to the surface of the rotating scraper body when the polygonal cutter disc drives the scraper body to rotate. The scraping surface can scrape off the asphalt adhering to the surface of the rotating scraper body under the cooperation of the scraper and the contact support surface. Under the action of gravity, the asphalt is discharged through the slag discharge port, which effectively avoids the asphalt falling onto the bottom scraper body and affecting the asphalt test at the top of the mold. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a front view of the present invention;

[0019] Figure 3 This is a side view of the present invention;

[0020] Figure 4 This is a sectional view of the side of this utility model;

[0021] Figure 5 This is a sectional view of the front of the present invention;

[0022] Figure 6 This is a cross-sectional view of the front of the outer spring block of this utility model;

[0023] Figure 7 This is a schematic diagram of the slag removal component of this utility model;

[0024] Figure 8 This is a cross-sectional view of the top of the slag removal component of this utility model.

[0025] In the diagram: 1. Housing; 2. Cutter head assembly; 21. Polygonal cutter head; 22. Disassembly frame; 23. Disassembly strip; 24. Scraper body; 3. Adjustment and positioning assembly; 31. Drive shaft; 32. Adjustment knob; 33. Fixing ring; 34. Inner spring block; 35. Outer spring block; 4. Slag discharge port; 5. Slag removal assembly; 51. Scraper; 52. Adhesive scraping surface; 53. Adhesive supporting surface; 54. Slide groove; 55. Slider; 56. Connecting rod; 57. Positioning spring; 6. Heater; 7. Transmission line; 8. Heating plate. Detailed Implementation

[0026] 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.

[0027] like Figures 1 to 8As shown, this utility model provides an electrically heated scraper for testing asphalt raw materials, including a housing 1, a cutter disc assembly 2 inside the housing 1, an adjustment and positioning assembly 3 connected between the housing 1 and the cutter disc assembly 2, a heating plate 8 located at the top of the cutter disc assembly 2 inside the housing 1, a heater 6 fixedly connected to the top of the housing 1, a transmission line 7 fixedly sleeved inside the heater 6, and the transmission line 7 connected to the heating plate 8 through the heater 6;

[0028] The cutter head assembly 2 includes a polygonal cutter head 21 connected to the inside of the housing 1 by a movable shaft. A disassembly frame 22 is fixedly sleeved on the side of the polygonal cutter head 21. Several disassembly strips 23 are evenly distributed inside the disassembly frame 22. The disassembly frame 22 is fixed to the disassembly strips 23 by bolts. One side of the disassembly strip 23 extends to the outside of the disassembly frame 22 and is integrally formed with a scraper body 24. The heating plate 8 covers the outside of the top scraper body 24, and the bottom disassembly strip 23 extends to the lower part of the housing 1. Due to the setting of the polygonal cutter head 21, with the cooperation of the housing 1 and the adjustment and positioning assembly 3, it is convenient for the operator to rotate the entire cutter head assembly 2, thereby rotating different scraper bodies 24 to the bottom of the housing 1 to scrape off the asphalt protruding from the top of the test mold. At the same time, the upper scraper body 24 is rotated into the heating plate 8 for heating, achieving the effect of simultaneous scraping and heating, effectively improving operating efficiency.

[0029] like Figure 2 As shown, the bottom of the housing 1 is a flat surface. One scraper body 24 at the bottom of the blade assembly 2 rotates with the polygonal blade 21 to the bottom plane of the housing 1. Due to the configuration of the housing 1, with the cooperation of its bottom plane, one scraper body 24 at the bottom can rotate to the outside of the housing 1 for scraping, while ensuring that the remaining scraper bodies 24 are located inside the housing 1, thereby ensuring the heating effect and avoiding rapid cooling.

[0030] like Figure 5 As shown, a slag removal component 5 is provided inside the housing 1 away from the vertical centerline. One end of the slag removal component 5 is fixedly connected to the side of the inner wall of the housing 1, and the other end of the slag removal component 5 is attached to the surface of the disassembly frame 22 and the scraper body 24. A slag discharge port 4 is provided on the side of the housing 1 between the bottom plane and the slag removal component 5.

[0031] like Figure 3 As shown, the adjustment and positioning assembly 3 includes a drive shaft 31 rotatably sleeved in the middle of the housing 1. The middle part of the drive shaft 31 is fixedly sleeved in the middle of the polygonal cutter head 21. Both ends of the drive shaft 31 extend to the front and rear sides of the housing 1 respectively and are fixedly connected to an adjustment knob 32.

[0032] like Figure 3 and Figure 6As shown, the adjustment knob 32 is internally provided with a number of inner spring blocks 34 and outer spring blocks 35 evenly distributed outside the drive shaft 31. The number of inner spring blocks 34 and outer spring blocks 35 correspond one-to-one and are alternately distributed. Adjacent inner spring blocks 34 and outer spring blocks 35 are tightly closed. The number of inner spring blocks 34 and outer spring blocks 35 correspond one-to-one with the scraper body 24. Due to the arrangement of the inner spring blocks 34 and outer spring blocks 35, under the action of their close contact and elastic restoring force, the adjustment knob 32 can rotate to a fixed angle and maintain final stability. Then, through the drive shaft 31 and the polygonal blade disc 21, the corresponding scraper body 24 can be rotated to the outside of the bottom of the housing 1 and maintained in a final fixed state.

[0033] like Figure 3 and Figure 6 As shown, several outer spring blocks 35 are fixedly connected to the inner wall of the adjusting knob 32. A fixing ring 33 is sleeved on the outside of the transmission shaft 31 between the adjusting knob 32 and the housing 1. One end of the fixing ring 33 is fixedly connected to the housing 1, and the other end of the fixing ring 33 is fixedly connected to the back of several inner spring blocks 34.

[0034] like Figure 5 and Figure 7 As shown, the slag removal assembly 5 includes a scraper 51 movably installed inside the housing 1. The side of the scraper 51 near the scraper body 24 is inclined. A contact scraping surface 52 is provided at the bottom of the inclined side of the scraper 51 near the scraper body 24. The contact scraping surface 52 slides against the front of the scraper body 24. A contact abutment surface 53 is provided at one end of the inclined side of the scraper 51 near the scraper body 24. The contact abutment surface 53 slides against the side of the disassembly frame 22. Due to the setting of the slag removal assembly 5, when the polygonal cutter disc 21 drives the scraper body 24 to rotate, the contact scraping surface 52 can scrape off the asphalt adhering to the surface of the rotating scraper body 24 under the cooperation of the scraper 51 and the contact abutment surface 53, and discharge it through the slag discharge port 4 under the action of gravity, effectively preventing asphalt from falling onto the bottom scraper body 24 and affecting the asphalt test at the top of the mold.

[0035] like Figure 5 and Figure 8As shown, the scraper 51 has a groove 54 inside, and a slider 55 is slidably sleeved inside the groove 54. One end of the slider 55 is fixedly connected to a connecting rod 56, and the other end of the connecting rod 56 extends to the outside of the scraper 51 and is fixedly connected to the inner wall of the housing 1. A positioning spring 57 is provided inside the groove 54 at the other end of the slider 55. The two ends of the positioning spring 57 abut against the inner wall of the groove 54 and one end of the slider 55, respectively. Due to the elastic recovery effect of the positioning spring 57, under the restriction of the connecting rod 56, the contact and holding surface 53 is always in contact with the outer surface of the disassembly frame 22 through the slider 55 and the scraper 51, thereby ensuring that the contact scraping surface 52 at the bottom of the slope of the scraper 51 can always completely cover the scraper body 24, thus ensuring the cleaning effect.

[0036] Working principle and usage process of this utility model:

[0037] Power is supplied through transmission line 7, so that heater 6 can heat a scraper body 24 on top through heating plate 8. During this time, the staff can hold the housing 1 and scrape off the asphalt protruding from the top of the test mold through a scraper body 24 located on the outside of the bottom of the housing 1.

[0038] After scraping is completed, turning the adjustment knob 32 with your thumb will cause several outer spring blocks 35 to move with it. With the cooperation of the fixing ring 33, the rotating outer spring blocks 35 squeeze the inner spring block 34 and deform them. After stopping the rotation of the adjustment knob 32, the adjustment knob 32 remains stable under the restriction of the fixing ring 33 and the elastic restoring force of the inner spring block 34 and the outer spring block 35. At the same time, the polygonal cutter disc 21 is kept stable through the transmission shaft 31. While the adjustment knob 32 is rotating, it can drive the scraper body 24 to rotate through the transmission shaft 31 and the polygonal cutter disc 21. The heated scraper body 24 rotates and moves closer to the outside of the bottom of the housing 1. After the scraper body 24 that scrapes the asphalt rotates, it gradually approaches the slag removal component 5. After passing through the slag removal component 5, the scraper body 24 can clean the asphalt waste adhering to its surface with the cooperation of the scraper 51 and the contact scraping surface 52. After cleaning, the scraper body 24 gradually approaches and finally enters the heating plate 8, thereby achieving the purpose of continuous scraping.

[0039] 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 process, method, article, or apparatus.

[0040] 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. An electrically heated doctor blade for testing and detecting asphalt raw materials, comprising a housing (1), characterized in that: The housing (1) is provided with a cutter head assembly (2) inside. An adjustment and positioning assembly (3) is connected between the housing (1) and the cutter head assembly (2). The housing (1) is provided with a heating plate (8) located on top of the cutter head assembly (2) inside. A heater (6) is fixedly connected to the top of the housing (1). A transmission line (7) is fixedly sleeved inside the heater (6). The transmission line (7) is connected to the heating plate (8) through the heater (6). The cutter head assembly (2) includes a polygonal cutter head (21) connected to the inside of the housing (1) by a movable shaft. A disassembly frame (22) is fixedly sleeved on the side of the polygonal cutter head (21). A plurality of disassembly strips (23) are evenly distributed inside the disassembly frame (22). The disassembly frame (22) fixes the disassembly strips (23) with bolts. One side of the disassembly strip (23) extends to the outside of the disassembly frame (22) and is integrally formed with a scraper body (24). The heating plate (8) covers the outside of the top scraper body (24), and the bottom disassembly strip (23) extends to the bottom of the housing (1).

2. The electrically heated doctor blade for testing and detecting asphalt raw materials according to claim 1, characterized in that: The bottom of the housing (1) is flat, and a scraper body (24) at the bottom of the cutter disc assembly (2) rotates with the polygonal cutter disc (21) to the bottom plane of the housing (1).

3. The electrically heated doctor blade for testing and detecting asphalt raw materials according to claim 1, characterized in that: The shell (1) is provided with a slag removal component (5) located away from the vertical center line. One end of the slag removal component (5) is fixedly connected to the side of the inner wall of the shell (1), and the other end of the slag removal component (5) is attached to the surface of the disassembly frame (22) and the scraper body (24). The side of the shell (1) is provided with a slag discharge port (4) located between the bottom plane and the slag removal component (5).

4. The electrically heated doctor blade for testing and evaluating asphalt raw materials according to claim 1, characterized in that The adjustment and positioning assembly (3) includes a drive shaft (31) rotatably sleeved in the middle of the housing (1). The middle part of the drive shaft (31) is fixedly sleeved in the middle of the polygonal cutter head (21). Both ends of the drive shaft (31) extend to the front and rear sides of the housing (1) respectively and are fixedly connected to an adjustment knob (32).

5. The electrically heated doctor blade for testing and evaluating asphalt raw materials according to claim 4, characterized in that The adjustment knob (32) is provided with a number of inner spring blocks (34) and outer spring blocks (35) evenly distributed outside the transmission shaft (31). The number of inner spring blocks (34) and outer spring blocks (35) correspond one to one and are alternately distributed. The adjacent inner spring blocks (34) and outer spring blocks (35) are tightly packed. The number of inner spring blocks (34) and outer spring blocks (35) correspond one to one with the scraper body (24).

6. The electrically heated doctor blade for testing and evaluating asphalt raw materials according to claim 5, characterized in that Several outer spring blocks (35) are fixedly connected to the inner wall of the adjustment knob (32). The transmission shaft (31) is sleeved with a fixing ring (33) located between the adjustment knob (32) and the housing (1). One end of the fixing ring (33) is fixedly connected to the housing (1), and the other end of the fixing ring (33) is fixedly connected to the back of several inner spring blocks (34).

7. The electrically heated doctor blade for testing and detecting asphalt raw materials according to claim 3, characterized in that: The slag removal assembly (5) includes a scraper (51) movably installed inside the housing (1). The scraper (51) has a sloping side near the scraper body (24). The bottom of the sloping side of the scraper (51) near the scraper body (24) is provided with a fitting scraping surface (52). The fitting scraping surface (52) slides against the front of the scraper body (24). The end of the sloping side of the scraper (51) near the scraper body (24) is provided with a fitting support surface (53). The fitting support surface (53) slides against the side of the disassembly frame (22).

8. The electrically heated doctor blade for testing and detecting asphalt raw materials according to claim 7, characterized in that: The scraper (51) has a groove (54) inside, and a slider (55) is slidably sleeved inside the groove (54). One end of the slider (55) is fixedly connected to a connecting rod (56), and the other end of the connecting rod (56) extends to the outside of the scraper (51) and is fixedly connected to the inner wall of the housing (1). A positioning spring (57) is provided inside the groove (54) at the other end of the slider (55). The two ends of the positioning spring (57) abut against the inner wall of the groove (54) and one end of the slider (55), respectively.

Images