Crushing device for asphalt recovery

Abstract

The invention relates to the technical field of asphalt recovery, in particular to a crushing device for asphalt recovery. The block crushing mechanism, the ball crushing mechanism and the sheet crushing mechanism are respectively arranged on the inner wall of the lower end of the first cavity, the inner wall of the middle end of the second cavity and the top of the third cavity of the crushing box; the material guide plate is obliquely arranged on the inner wall of the upper end of the three-cavity chamber; and the U-shaped screen frame is rotationally connected to the connecting lugs of the crushing box. Therefore, the device is reasonable in structure, asphalt in different forms can be accurately recognized and shunted, the asphalt enters the matched crushing mechanism to be crushed, non-blocky asphalt in the form is subjected to unified pre-crushing treatment to be converted into blocky asphalt, and then the blocky asphalt and original blocky asphalt are intensively crushed through the block crushing mechanism; according to the device, all links are meticulous in labor division and tacit in cooperation, the crushing efficiency is remarkably improved, meanwhile, the stability of the crushing quality is effectively guaranteed, and the device has practicability and high efficiency and is good in using effect.

Description

Technical Field

[0001] The invention relates to the technical field of asphalt recovery, and in particular to a crushing device for asphalt recovery. Background Art

[0002] In the field of road construction and maintenance, the recycling and reuse of asphalt materials occupies a pivotal position. This measure can not only effectively reduce the cost of road construction and maintenance, but also significantly reduce resource waste and adverse effects on the environment. At present, most of the asphalt recovery devices widely used on the market adopt a crushing roller structure. Its working principle is relatively simple, mainly relying on two rollers rotating in opposite directions to squeeze and crush the materials entering between them.

[0003] However, in the actual process of asphalt recycling, the shapes of the collected asphalt raw materials are extremely complex and diverse, covering a variety of forms such as blocks, spheres and flakes. The crusher performs well when processing asphalt raw materials of a single shape. For example, when faced with block asphalt raw materials, it can complete the crushing operation relatively quickly. But when these asphalt particles of different shapes are poured into the crushing roller for processing together, problems gradually become prominent.

[0004] Due to the significant differences in physical properties between asphalt particles of different shapes, during the extrusion process of the crushing rollers, spherical and flaky asphalt particles are prone to slip and dislocation between the rollers, resulting in them not being fully crushed. This requires these particles to repeatedly enter the crushing rollers for secondary or even multiple crushing. What is even more troublesome is that when a large number of spherical and flaky asphalt particles accumulate in the crushing chamber, the block asphalt particles located on them can only contact the crushing rollers and be crushed after the spherical and flaky asphalt particles are crushed. This situation greatly reduces the crushing efficiency, increases the recycling cost and time cost, and also limits the overall efficiency and quality of asphalt recycling work to a certain extent. Summary of the invention

[0005] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0006] To this end, the purpose of the present invention is to propose a crushing device for asphalt recovery. The present invention has a reasonable structure and can accurately identify and divert asphalt of different forms, so that it can enter the inside of an adapted crushing mechanism to carry out crushing operations. For non-block asphalt forms, they are first uniformly pre-crushed and converted into block asphalt, and then crushed together with the original block asphalt through a block crushing mechanism. The various links of the device have meticulous division of labor and tacit cooperation. While significantly improving the crushing efficiency, it effectively guarantees the stability of the crushing quality, has both practicality and efficiency, and has a good use effect.

[0007] In order to achieve the above object, the present invention proposes a crushing device for asphalt recovery, comprising: Crushing box: Inside, it is successively divided into a first chamber, a second chamber, and a third chamber by partition plates. A ramp portion is provided at the top of the first chamber, and a triangular seat with an angle adapted to that of the ramp portion is provided at the top of the second chamber; Block crushing mechanism, ball crushing mechanism, and sheet crushing mechanism: They are respectively arranged on the inner wall of the lower end of the first chamber, the inner wall of the middle end of the second chamber, and the top of the third chamber; Feeding plate: It is obliquely arranged on the inner wall of the upper end of the third chamber, and its bottom end penetrates into the inside of the first chamber and is located on one side of the top of the block crushing mechanism; U-shaped sieve frame: It is rotatably connected to the connecting ear of the crushing box. The upper cross frame of the U-shaped sieve frame is respectively lapped on the top of the ramp portion and the triangular seat, and its tail end is aligned with the feeding end of the sheet crushing mechanism. Ball grooves and ball frames are respectively provided at the positions corresponding to the top of the triangular seat on the inner wall of the upper cross frame. Strip-shaped grooves are evenly opened on the part of the inner wall of the upper cross frame except for the ball grooves. The lower support frame of the U-shaped sieve frame is slidably connected to the surface of the crushing box, and its tail end is lapped on the cam on the surface of the crushing box. The cam, block crushing mechanism, ball crushing mechanism, and sheet crushing mechanism are all uniformly driven by a driving mechanism arranged on the surface of the crushing box.

[0008] In addition, a crushing device for asphalt recycling proposed according to the above application may also have the following additional technical features: Specifically, the block crushing mechanism is a block double-roller crushing mechanism. The block crushing mechanism includes a crushing box. First crushing rollers are symmetrically and rotatably connected to the inner wall of the crushing box. Transmission gears are symmetrically and rotatably connected in the grooves on the surface of the crushing box and are meshed with each other. One end of the central shaft of one set of transmission gears penetrates out of the outside of the crushing box and is connected to the driving mechanism. One end of the central shafts of the two groups of first crushing rollers penetrates into the grooves and is connected to the transmission gears. A feeding frame is provided at the top of the crushing box and is connected in communication. A discharge port is opened on the lower surface of the crushing box and corresponds to the discharge groove opened on the surface of the crushing box.

[0009] Specifically, the ball crushing mechanism is a spherical jaw plate crushing mechanism. The ball crushing mechanism includes a static jaw plate fixedly connected to one side of the inner wall of the middle end of the second chamber, a moving jaw plate rotatably connected to the other side of the inner wall of the middle end of the second chamber, and push rods evenly hinged and fixed to the lower surface of the moving jaw plate. The static jaw plate, moving jaw plate, and push rods are all located on one side of the top of the feeding frame and the feeding plate. One side of the top of the push rod is rotatably connected to a synchronous shaft, and U-shaped seats are evenly arranged on the surface of the synchronous shaft. One end of the synchronous shaft penetrates out of the outside of the crushing box and is connected to the driving mechanism. Mounting seats are provided on one side of the bottom of the U-shaped seats, and transmission blocks are vertically slidably connected to the surfaces of the mounting seats. One end of the transmission block is hinged and fixed to the U-shaped seat by a connecting rod, and the other end of the transmission block is hinged and fixed to one end of the push rod away from the lower surface of the moving jaw plate. A transmission rod is slidably connected to the inner wall of the mounting seat and is fixedly connected to the surface of the mounting seat by a spring. The end of the transmission rod away from the mounting seat is hinged and fixed to the lower surface of the moving jaw plate.

[0010] Specifically, the flaking mechanism is a flaky cutter roller crushing mechanism. The flaking mechanism includes a mountain-shaped frame which is fixedly connected to the top of the three-chamber. At the bottom of the mountain-shaped frame, an arc-shaped sieve frame is fixedly connected. The arc-shaped sieve frame is located on one side of the top of the moving jaw plate and the feeding plate and is inside the three-chamber. Inside the inner wall of the mountain-shaped frame, a cross-shaped frame is rotatably connected. On the outer end face of the cross-shaped frame, metal cutting knives are evenly fixedly connected in the counterclockwise direction. A second crushing roller is sleeved on the central axis of the cross-shaped frame and is located inside the metal cutting knives. One end of the central axis of the cross-shaped frame penetrates outside the mountain-shaped frame and is fixedly connected with an upper driving gear. The upper driving gear is connected to the driving mechanism.

[0011] Specifically, at the positions corresponding to the bottom of the upper cross-frame at the top of the slope part and the triangular seat, a limit guide post and a limit groove are respectively arranged. The limit guide post is located in the limit groove and is slidably connected with the inner wall of the limit groove. A rubber pad is arranged at the top of the limit guide post.

[0012] Specifically, at the positions corresponding to the surface of the lower support frame and the surface of the crushing box, a limit shaft and an arc-shaped groove are respectively arranged. The limit shaft is located in the arc-shaped groove and is slidably connected with the inner wall of the arc-shaped groove.

[0013] Specifically, the width dimension of the strip-shaped groove is larger than the size of the massive asphalt and smaller than the size of the spherical asphalt. The width of the spherical groove is larger than the size of the spherical asphalt and smaller than the size of the flaky asphalt.

[0014] Specifically, the angle range of the slope part and the triangular seat is set between 20° and 25°.

[0015] Specifically, a sieve plate is fixedly connected to the inner wall of the upper cross-frame by bolts. The spherical groove and the strip-shaped groove are respectively opened on the surface of the sieve plate.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present invention.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The structure of the present invention is reasonable. The crushing chamber structure of the present invention is carefully designed, with a first chamber, a second chamber, and a third chamber reasonably divided inside, and key components such as a slope part, a triangular seat, a U-shaped sieve frame, an upper cross frame, a ball groove, a ball frame, a strip groove, a lower support frame, and a cam are equipped. These components cooperate with each other and fit tightly to form a set of efficient and precise asphalt treatment systems. When asphalt in different forms is put into the device, the system can quickly and accurately identify the form of the asphalt and precisely divert it to the appropriate chamber according to its characteristics. Lumpy asphalt enters the first chamber through the strip groove, spherical asphalt falls into the second chamber along the carefully designed ball groove and ball frame, and flaky asphalt reaches the third chamber along the preset path. This precise diversion method enables each form of asphalt to carry out crushing operations in a dedicated chamber, avoiding many problems caused by the mixed stacking of different forms of asphalt. On the one hand, it effectively prevents the additional burden on the crushing equipment caused by material stacking, reduces the equipment failure rate. On the other hand, it ensures that each asphalt can be fully and effectively crushed, avoiding uneven crushing caused by material stacking, significantly improving the crushing quality. Through the coordinated operation of the components, efficient and precise treatment of different forms of asphalt is achieved, significantly improving the crushing efficiency, with excellent use effects and broad application prospects; 2. The present invention specially sets up a lump crushing mechanism, a ball crushing mechanism, and a flake crushing mechanism according to the shape and strength of lumpy asphalt, spherical asphalt, and flaky asphalt. Among them, for non-lumpy asphalt forms, they are pre-crushed into lumpy asphalt by the ball crushing mechanism and the flake crushing mechanism, and then conveyed into the lump crushing mechanism through a guide plate, and crushed together with the original lumpy asphalt through the lump crushing mechanism. This crushing method has detailed division of labor and good cooperation in each link, significantly improving the crushing efficiency while effectively ensuring the stability of the crushing quality, combining practicability and high efficiency, with good use effects; 3. The device is provided with a driving mechanism. The cam, the lump crushing mechanism, the ball crushing mechanism, and the flake crushing mechanism in this mechanism are all driven by the driving mechanism uniformly. The driving mechanism adopts a single power source design. This innovative measure not only effectively reduces the production cost, simplifies the control process, but also greatly reduces the subsequent maintenance difficulty, providing a strong guarantee for the long-term stable operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above-mentioned and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the following description of the embodiments in conjunction with the drawings, wherein: Figure 1 is a schematic structural diagram of a crushing device for asphalt recycling according to the present invention; Figure 2 is an exploded schematic structural diagram of a crushing device for asphalt recycling according to the present invention; Figure 3 is a schematic structural diagram of the slope part in a crushing device for asphalt recycling according to the present invention; Figure 4 Schematic diagram of the triangular seat structure in a crushing device for asphalt recycling according to the present invention; Figure 5 Schematic diagram of the block crushing mechanism structure in a crushing device for asphalt recycling according to the present invention; Figure 6 Schematic diagram of the ball crushing mechanism structure in a crushing device for asphalt recycling according to the present invention; Figure 7 Schematic diagram of the sheet crushing mechanism structure in a crushing device for asphalt recycling according to the present invention; Figure 8 Schematic diagram of the U-shaped sieve frame structure in a crushing device for asphalt recycling according to the present invention; Figure 9 A crushing device for asphalt recycling according to the present invention Figure 1 Schematic diagram of the enlarged structure at position A.

[0019] As shown in the figure: 1. Crushing box; 2. First chamber; 3. Second chamber; 4. Third chamber; 5. Slope part; 6. Triangular seat; 7. Block crushing mechanism; 8. Ball crushing mechanism; 9. Sheet crushing mechanism; 10. Feeding plate; 11. U-shaped sieve frame; 12. Connecting ear; 13. Upper cross frame; 14. Ball groove; 15. Ball frame; 16. Strip groove; 17. Lower support frame; 18. Cam; 19. Driving mechanism; 71. Crushing material box; 72. First crushing roller; 73. Transmission gear; 74. Feeding frame; 75. Discharge port; 100. Discharge groove; 76. Conical part; 81. Static jaw plate; 82. Moving jaw plate; 83. Synchronous shaft; 84. U-shaped seat; 85. Mounting seat; 86. Transmission block; 87. Connecting rod; 88. Push rod; 89. Transmission rod; 810. Spring; 91. Mountain-shaped frame; 92. Cross-shaped frame; 93. Metal cutting knife; 94. Second crushing roller; 95. Arc sieve frame; 96. Upper driving gear; 191. First gear; 192. Second gear; 193. First synchronous toothed belt; 194. Synchronous gear; 195. Second synchronous toothed belt; 196. Third gear; 197. Third synchronous toothed belt; 198. Driving motor; 199. Controller; 61. Limit guide post; 171. Limit shaft; 20. Sieve plate; 21. Bolt. Detailed implementation method

[0020] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where like or similar reference numerals denote like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention. On the contrary, the embodiments of the present invention include all variations, modifications, and equivalents that fall within the spirit and scope of the appended claims.

[0021] A crushing device for asphalt recovery according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0022] As Figures 1-9 shown, a crushing device for asphalt recovery according to an embodiment of the present invention includes: Crushing box 1: The interior is sequentially partitioned into a first chamber 2, a second chamber 3, and a third chamber 4 by a partition. A ramp portion 5 is provided at the top of the first chamber 2, and a triangular seat 6 with an angle adapted to that of the ramp portion 5 is provided at the top of the second chamber 3; Block crushing mechanism 7, ball crushing mechanism 8, and sheet crushing mechanism 9: They are respectively provided on the inner wall of the lower end of the first chamber 2, the inner wall of the middle end of the second chamber 3, and the top of the third chamber 4; Guide plate 10: It is obliquely provided on the inner wall of the upper end of the third chamber 4, and its bottom end penetrates into the interior of the first chamber 2 and is located on one side of the top of the block crushing mechanism 7; U-shaped sieve frame 11: It is rotatably connected to the connecting ear 12 of the crushing box 1. The upper cross frame 13 of the U-shaped sieve frame 11 is respectively lapped on the tops of the ramp portion 5 and the triangular seat 6, and its tail end is aligned with the feeding end of the sheet crushing mechanism 9. Ball grooves 14 and ball frames 15 are respectively provided at positions corresponding to the top of the triangular seat 6 on the inner wall of the upper cross frame 13. Strip-shaped grooves 16 are evenly formed in the part of the inner wall of the upper cross frame 13 except for the ball grooves 14. The lower support frame 17 of the U-shaped sieve frame 11 is slidably connected to the surface of the crushing box 1, and its tail end is lapped on the cam 18 on the surface of the crushing box 1. The cam 18, the block crushing mechanism 7, the ball crushing mechanism 8, and the sheet crushing mechanism 9 are all uniformly driven by a driving mechanism 19 provided on the surface of the crushing box 1.

[0023] It should be noted that the volume of a block is smaller than that of a sphere, and the volume of a sphere is smaller than that of a sheet.

[0024] Specifically, the structure of the present invention is reasonable, which can accurately identify and divert asphalt in different forms, enabling it to enter the appropriate crushing mechanism for crushing operations. For non-block-shaped asphalt forms, they are first uniformly pre-crushed and transformed into block-shaped asphalt, and then, together with the original block-shaped asphalt, they are concentrated and crushed by the block crushing mechanism 7. Each link of the device has a detailed division of labor and a good cooperation. While significantly improving the crushing efficiency, it effectively ensures the stability of the crushing quality, and has both practicality and high efficiency, with good use effects.

[0025] Specifically, start the driving mechanism 19. After the mechanism is started, it can synchronously drive the cam 18, the block crushing mechanism 7, the ball crushing mechanism 8, and the sheet crushing mechanism 9 to operate in coordination. During the operation of the cam 18, it will drive the lower support frame 17 to swing up and down regularly, and the swing of the lower support frame 17 will be synchronously transmitted to the upper cross frame 13, causing it to swing up and down accordingly. When asphalt in different forms is poured onto the upper cross frame 13, the block-shaped asphalt, due to its relatively small volume, can smoothly pass through the strip-shaped groove 16 and directly fall into the block crushing mechanism 7 in the chamber 2 for special crushing treatment. However, the spherical asphalt and sheet-shaped asphalt, due to their relatively large volumes, will temporarily stay on the surface of the upper cross frame 13. As the upper cross frame 13 continues to swing up and down, the spherical asphalt and sheet-shaped asphalt will gradually move downward along the inner wall of the upper cross frame 13. When the spherical asphalt moves to the position of the ball groove 14, it will naturally fall into the ball groove 14 and then accurately fall into the ball crushing mechanism 8 in the second chamber 3 through the ball frame 15. The ball crushing mechanism 8 will perform a crushing operation on the spherical asphalt and process it into a form similar in size to the block-shaped asphalt. At the same time, the sheet-shaped asphalt will also gradually move into the interior of the sheet crushing mechanism 9 as the upper cross frame 13 swings. The sheet crushing mechanism 9 will perform a crushing treatment on the sheet-shaped asphalt to also meet the size standard of the block-shaped asphalt. The asphalt after being crushed by the ball crushing mechanism 8 and the sheet crushing mechanism 9 is conveyed to the inside of the block crushing mechanism 7 through the guide plate 10 and is crushed by the block crushing mechanism 7 in the same way as the original block-shaped asphalt. The block crushing mechanism 7 is specifically designed for block-shaped asphalt. By performing a centralized and efficient crushing operation on block-shaped asphalt of the same volume, it can significantly improve the overall crushing efficiency and ensure that the crushing quality reaches a stable and excellent level, with extremely good use effects.

[0026] In an embodiment of the present invention, as Figure 5 shown, the block crushing mechanism 7 is a block-shaped double-roll crushing mechanism. The block crushing mechanism 7 includes a crushing box 71. The inner wall of the crushing box 71 is symmetrically and rotatably connected with first crushing rolls 72. In the grooves on the surface of the crushing box 71, there are symmetrically rotatably connected transmission gears 73, which are meshed with each other. One end of the central axis of one group of transmission gears 73 penetrates outside the crushing box 1 and is connected to the driving mechanism 19. One end of the central axes of the two first crushing rolls 72 penetrates into the grooves and is connected to the transmission gears 73. A guide frame 74 is provided at the top of the crushing box 71 and is connected and communicated. A discharge port 75 is opened on the lower end surface of the crushing box 71, and it corresponds to the position of the discharge groove 100 opened on the surface of the crushing box 1.

[0027] It should be noted that in this embodiment, a conical portion 76 is provided at the bottom of the crushing box 71. The structure of the conical portion 76 is convenient for smooth discharging and prevents blockage, with good use effects.

[0028] Specifically, the structure and connection relationship of the block crushing mechanism 7 will be further described. The block crushing mechanism 7 is a device specifically used for crushing block-shaped asphalt. In practical applications, through reasonable division of labor and cooperation, this mechanism can quickly process a large amount of block-shaped asphalt, significantly improving the crushing efficiency. Since the processing objects are all block-shaped asphalt, the stability of the crushing quality can be ensured, providing asphalt particles that meet the requirements for subsequent processes. The power transmission of the block crushing mechanism 7 mainly relies on two sets of transmission gears 73. When the driving mechanism 19 is started, it will drive one set of transmission gears 73 to rotate. Since the two sets of transmission gears 73 are meshed with each other, the rotation of one set of transmission gears 73 will synchronously drive the other set of transmission gears 73 to rotate. While the two sets of transmission gears 73 are rotating, they will synchronously drive two sets of first crushing rollers 72 to rotate in opposite directions. The first crushing rollers 72 are the core crushing components of the block crushing mechanism 7, and their surfaces are designed with specific crushing teeth or patterns to increase the friction force and crushing effect with block-shaped asphalt. When the two sets of first crushing rollers 72 rotate in opposite directions, when the block-shaped asphalt enters between the two crushing rollers, it will be subjected to extrusion and shear forces from two directions, and thus be effectively crushed into smaller particles. The feeding of block-shaped asphalt has two sources. One part is the block-shaped asphalt that directly falls into the inner part of the first chamber 2, and the other part is the block-shaped asphalt that has been crushed and conveyed by the guide plate 10. The block-shaped asphalt from the two sources jointly enters the guide frame 74. The function of the guide frame 74 is to accurately guide the block-shaped asphalt into the crushing box 71, ensuring smooth and stable feeding. The asphalt particles crushed by the two sets of first crushing rollers 72 will fall to the bottom of the crushing box 71 and be discharged outside the crushing box 71 through the discharge port 75 and the discharge chute 100, entering the subsequent conveying or storage link.

[0029] In an embodiment of the present invention, as Figure 6 shown, the spherical crushing mechanism 8 is a spherical jaw plate crushing mechanism. The spherical crushing mechanism 8 includes a static jaw plate 81 fixedly connected to the inner wall of one side of the middle end of the second chamber 3, a moving jaw plate 82 rotatably connected to the inner wall of the other side of the middle end of the second chamber 3, and a push rod 88 uniformly hinged and fixed to the lower surface of the moving jaw plate 82. The static jaw plate 81, the moving jaw plate 82, and the push rod 88 are all located on one side of the top of the guide frame 74 and the guide plate 10. One side of the top of the push rod 88 is rotatably connected to a synchronous shaft 83, and U-shaped seats 84 are uniformly arranged on the surface of the synchronous shaft 83. One end of the synchronous shaft 83 penetrates outside the crushing box 1 and is connected to the driving mechanism 19. Mounting seats 85 are arranged on one side of the bottom of the U-shaped seats 84, and transmission blocks 86 are vertically slidably connected to the surfaces of the mounting seats 85. A connecting rod 87 is hinged and fixed between one end of the transmission block 86 and the U-shaped seat 84, and the other end of the transmission block 86 is hinged and fixed to one end of the push rod 88 away from the lower surface of the moving jaw plate 82. A transmission rod 89 is slidably connected to the inner wall of the mounting seat 85, and a spring 810 is fixedly connected between the transmission rod 89 and the surface of the mounting seat 85. The end of the transmission rod 89 away from the mounting seat 85 is hinged and fixed to the lower surface of the moving jaw plate 82.

[0030] It should be noted that the surface of the mounting seat 85 described in this embodiment is provided with a guide groove facilitating the vertical sliding connection of the transmission block 86.

[0031] It can be understood that the volume of the spherical asphalt after being crushed by the spherical crushing mechanism 8 is similar to that of the block-shaped asphalt, or smaller than that of the block-shaped asphalt.

[0032] Specifically, the structure and connection relationship of the spherical crushing mechanism 8 are further described. The spherical crushing mechanism 8 is designed specifically for crushing spherical asphalt with relatively hard texture. Its overall working principle is based on the jaw crushing principle. The spherical asphalt first falls into the crushing area between the static jaw plate 81 and the moving jaw plate 82 through the spherical frame 15. During the working process, the moving jaw plate 82 is in a continuous motion state and will exert an extrusion effect on the spherical asphalt multiple times. With the continuous extrusion of the moving jaw plate 82, the spherical asphalt is gradually crushed into block-shaped asphalt. The crushed block-shaped asphalt is conveyed into the block crushing mechanism 7 through the guide plate 10 for subsequent further processing. The movement of the moving jaw plate 82 is realized by the push rod 88, and the power of the push rod 88 comes from the transmission block 86. The specific driving process is as follows: when the driving mechanism 19 is started and drives the synchronous shaft 83 to rotate, the synchronous shaft 83 will synchronously drive multiple U-shaped seats 84 to rotate around its axis. The rotational movement of the U-shaped seat 84 further drives one end of the connecting rod 87 to move. The other end of the connecting rod 87 is connected to the transmission block 86. Therefore, the movement of the connecting rod 87 will synchronously drive the transmission block 86 to perform a vertical lifting movement on the surface of the mounting seat 85. During the lifting process of the transmission block 86, it will synchronously drive the lower end of the moving jaw plate 82 to move. Through this movement mode, the relative movement between the moving jaw plate 82 and the static jaw plate 81 is realized, thereby effectively squeezing and crushing the spherical asphalt. In order to improve the structural stability of the moving jaw plate 82, a transmission rod 89 and a spring 810 are provided on the mounting seat 85 of this device. The transmission rod 89 and the spring 810 cooperate with each other to form a stable support and buffer system. During the movement of the moving jaw plate 82, the transmission rod 89 can provide a certain support force to prevent the moving jaw plate 82 from deforming excessively; while the spring 810 can play a buffering role when the moving jaw plate 82 is impacted, reducing the vibration and wear of the moving jaw plate 82, thereby improving the use effect and service life of the entire spherical crushing mechanism 8, and the use effect is good.

[0033] In an embodiment of the present invention, as Figure 7As shown, the sheet crushing mechanism 9 is a sheet cutter roller crushing mechanism. The sheet crushing mechanism 9 includes a mountain-shaped frame 91. The mountain-shaped frame 91 is fixedly connected to the top of the three-chamber 4. The bottom of the mountain-shaped frame 91 is fixedly connected with an arc-shaped sieve frame 95. The arc-shaped sieve frame 95 is located on one side of the top of the moving jaw plate 82 and the material guide plate 10 and is located inside the three-chamber 4. A cross-shaped frame 92 is rotatably connected to the inner wall of the mountain-shaped frame 91. And on the outer end face of the cross-shaped frame 92, metal cutting knives 93 are evenly fixedly connected in the counterclockwise direction. A second crushing roller 94 is sleeved on the central axis of the cross-shaped frame 92 and is located inside the metal cutting knives 93. One end of the central axis of the cross-shaped frame 92 penetrates outside the mountain-shaped frame 91 and is fixedly connected with an upper driving gear 96. The upper driving gear 96 is connected to the driving mechanism 19.

[0034] It should be noted that a material guide frame (not shown in the figure) is provided at the input end of the mountain-shaped frame 91 described in this embodiment to facilitate the smooth entry of sheet asphalt into the mountain-shaped frame 91. Among them, the material guide frame does not conflict with the structure at the end of the upper cross-frame 13.

[0035] It should be noted that the inner diameter of the mesh holes of the arc-shaped sieve frame 95 described in this embodiment is larger than that of the block asphalt. This design makes the volume of the block asphalt entering the block crushing mechanism 7 basically the same, ensuring stable crushing effect and quality, and good use effect.

[0036] It can be understood that to further improve the crushing effect, arc-shaped convex portions (not shown in the figure) are evenly arranged on the surface of the second crushing roller 94. The number of arc-shaped convex portions is equal to that of the metal cutting knives 93. The arc-shaped convex portions are arranged on the surface of the second crushing roller 94 near the next group of metal cutting knives 93. Specific crushing teeth or patterns are designed on the surface of the second crushing roller 94 and the surface of the arc-shaped convex portions. The arc-shaped convex portions protrude from the surface of the second crushing roller 94 by a set height. So that after the second crushing roller 94 performs secondary crushing on the sheet asphalt, it performs a third crushing operation on the asphalt after secondary crushing to further improve the crushing effect. The principle is as follows: The sheet asphalt is crushed by the first group of metal cutting knives 93 and then falls into the arc-shaped sieve frame 95. After falling into the arc-shaped sieve frame 95, the second crushing roller 94 contacts the sheet asphalt and performs secondary crushing on it. As the second crushing roller 94 rotates continuously, the arc-shaped convex portions on the second crushing roller 94 then perform third crushing on the sheet asphalt. The sheet asphalt after three times of crushing becomes block asphalt and is discharged from the mesh holes of the arc-shaped sieve frame 95, leaving a crushing space. Then the next group of metal cutting knives 93 continues to crush the sheet asphalt, and so on until the processing is completed.

[0037] Specifically, the structure and connection relationship of the sheet crushing mechanism 9 will be further described. The sheet crushing mechanism 9 is designed specifically for crushing sheet asphalt. When the sheet asphalt enters the inside of the mountain-shaped frame 91, multiple groups of metal cutting blades 93 (distributed in the counterclockwise direction) fixedly connected to the outer end surface of the cross-shaped frame 92 play a key role. These metal cutting blades 93 can effectively crush one end of the sheet asphalt extending into the inside of the mountain-shaped frame 91. The sheet asphalt after preliminary crushing will enter the gap between the second crushing roller 94 and the arc-shaped sieve frame 95. As the second crushing roller 94 rotates, it will perform secondary crushing on the sheet asphalt. After secondary crushing, the sheet asphalt forms block asphalt. These block asphalts fall onto the guide plate 10 through the mesh holes of the arc-shaped sieve frame 95, and then are conveyed by the guide plate 10 to the inside of the block crushing mechanism 7 for subsequent further processing.

[0038] It should be added that the drive mechanism 19 described in this embodiment includes a first gear 191, a second gear 192, and a drive motor 198. The first gear 191 and the second gear 192 are both rotatably connected to the surface of the crushing box 1 and are connected by a first synchronous belt 193. The first gear 191 and the second gear 192 are respectively connected to one group of transmission gears 73 and the synchronous shaft 83. Synchronous gears 194 are provided at positions corresponding to the surface of the first gear 191 and the surface of the cam 18 and are connected by a second synchronous belt 195. A third gear 196 is coaxially provided on the surface of the second gear 192 and is connected to the upper drive gear 96 by a third synchronous belt 197. The drive motor 198 is fixedly connected to the surface of the crushing box 1 and is located outside the third gear 196. The output end of the drive motor 198 is connected to the third gear 196. The drive motor 198 is connected to the controller 199 provided on the surface of the crushing box 1 through a bus system to achieve data transmission and receipt of control instructions.

[0039] The drive mechanism 19 adopts a single power source design. This innovative measure not only effectively reduces the production cost, simplifies the control process, but also greatly reduces the subsequent maintenance difficulty, providing a strong guarantee for the long-term stable operation of the equipment. Given the hard texture of spherical asphalt, a large extrusion force is required to break it during crushing. The drive motor 198 is cleverly arranged at the position of the synchronous shaft 83. Through the direct connection of the third gear 196 and the second gear 192, power is efficiently transmitted, thereby maximizing the kinetic energy of the moving jaw plate 82 and ensuring that spherical asphalt can be effectively crushed. For block asphalt and flake asphalt with relatively soft texture and easier-to-break structure, the drive mechanism 19 adopts a more refined power distribution strategy. The second gear 192 is connected to the first gear 191 through the first synchronous belt 193, directly transmitting part of the power to one group of transmission gears 73, and then driving the two groups of first crushing rollers 72 to rotate in opposite directions to achieve efficient crushing of block asphalt. At the same time, the third gear 196 transmits part of the power to the upper drive gear 96 through the third synchronous belt 197. The rotation of the upper drive gear 96 drives the metal cutter 93 to crush the flake asphalt. After the flake asphalt is initially crushed, the second crushing roller 94 inside it will synchronously re-extrude and crush the crushed flake asphalt to further improve the crushing effect. Since the quantity of block asphalt and flake asphalt staying on the upper cross frame 13 is relatively small, the driving force requirement of the cam 18 is not high. By connecting the first gear 191 and the synchronous gear 194 on the cam 18 through the second synchronous belt 195, part of the power can be transmitted to the cam 18 to meet the requirement of lifting the upper cross frame 13. The drive mechanism 19 precisely meets the crushing requirements of different types of asphalt through reasonable power distribution, while ensuring the overall use effect of the equipment. It not only reflects the concepts of high efficiency and energy conservation, but also lays a solid foundation for the long-term stable operation of the equipment.

[0040] In an embodiment of the present invention, as Figure 4 shown, at the positions corresponding to the bottom of the upper cross frame 13 at the top of the slope part 5 and the triangular seat 6, a limit guide post 61 and a limit groove are respectively provided. The limit guide post 61 is located in the limit groove and is slidably connected to the inner wall of the limit groove. A rubber pad is provided at the top of the limit guide post 61.

[0041] It should be noted that the limit groove described in this embodiment is not shown in the figure.

[0042] Specifically, to improve the running stability of the upper cross frame 13, we adopt the combined structure of the limit guide post 61 and the limit groove to build a reliable mechanical constraint system. This design can precisely limit its movement trajectory, avoid shaking and deviation, and ensure stable operation and good effect of the equipment. At the same time, a rubber pad is provided at the top of the limit guide post 61, which can buffer the falling impact force, reduce noise, and extend the service life.

[0043] In one embodiment of the present invention, Figure 8 As shown, a limit shaft 171 and an arc groove are respectively provided at positions corresponding to the surface of the lower support frame 17 and the surface of the crushing box 1. The limit shaft 171 is located in the arc groove and is slidably connected to the inner wall of the arc groove.

[0044] It should be noted that the arc-shaped groove described in this embodiment is not shown in the figure.

[0045] Specifically, in order to enhance the operating stability of the lower support frame 17, a reliable mechanical constraint system is constructed by precisely setting the combined structure of the limit shaft 171 and the arc groove. This design can effectively limit the movement trajectory of the lower support frame 17 and avoid unnecessary shaking and deviation during operation, thereby significantly improving its operating stability and ensuring that the equipment performs well in actual applications and has a good use effect.

[0046] In one embodiment of the present invention, Figure 8 As shown, the width of the strip groove 16 is larger than the size of block asphalt and smaller than the size of spherical asphalt, and the width of the spherical groove 14 is larger than the size of spherical asphalt and smaller than the size of sheet asphalt.

[0047] Specifically, in order to ensure that asphalt in different forms can be accurately diverted and achieve efficient crushing processing, the sizes of the strip grooves 16 and the ball grooves 14 are strictly limited: for block asphalt, the width of the strip grooves 16 is designed to be larger than the size of the block asphalt, so that the block asphalt can smoothly fall into a chamber 2 through the strip grooves 16 and will not get stuck in the grooves. In this way, during the feeding process, the block asphalt can accurately fall into a chamber 2 and enter the block crushing mechanism 7 along its preset path, laying a good foundation for the subsequent crushing operations of spherical asphalt and flaky asphalt. For spherical asphalt, the width of the ball groove 14 is The design is larger than the size of spherical asphalt, so that when the spherical asphalt moves to the position of the ball groove 14, it can smoothly fall into the ball frame 15 through the ball groove 14, and enter the ball crushing mechanism 8 along its preset path, laying a good foundation for the subsequent flaky asphalt crushing operation. For flaky asphalt, since its size is larger than the strip groove 16 and the ball groove 14, it will only be transported to the flaking mechanism 9 under the action of gravity. By strictly limiting the size of the strip groove 16 and the ball groove 14, the precise diversion and efficient crushing processing of three different forms of asphalt are achieved, thereby improving the efficiency and quality of the entire asphalt recovery process.

[0048] In one embodiment of the present invention, Figure 1 As shown, the angle range of the slope portion 5 and the triangular seat 6 is set between 20° and 25°.

[0049] It should be noted that in this embodiment, the top of the first chamber 2 is higher than the tops of the second chamber 3 and the third chamber 4. The tops of the second chamber 3 and the third chamber 4 are flush and on the same horizontal plane. The tail end of the ramp portion 5 is height - adapted to the head end of the triangular seat 6.

[0050] It can be understood that the ramp portion 5 and the triangular seat 6 both form an angle of 20° - 25° with the horizontal plane of the top of the third chamber 4.

[0051] Specifically, compared with the conventional setting angle of 15° - 20°, the angles of the ramp portion 5 and the triangular seat 6 of this device are set between 20° - 25°. This results in the angle of the upper cross - frame 13 also being between 20° - 25° after installation. Since the spherical asphalt and flaky asphalt are large in volume and have a relatively low screening accuracy requirement, appropriately increasing the angle can enable the spherical asphalt and flaky asphalt to quickly pass through the strip - shaped slots 16 under the action of gravity, improving the processing capacity per unit time and reducing the risk of blockage. At the same time, at a larger angle, the asphalt is not easily adhered to the inner wall of the upper cross - frame 13, further reducing the risk of blockage.

[0052] In an embodiment of the present invention, as Figure 8 shown, a sieve plate 20 is fixedly connected to the inner wall of the upper cross - frame 13 by bolts 21. The ball grooves 14 and the strip - shaped slots 16 are respectively opened on the surface of the sieve plate 20.

[0053] Specifically, in the design of the crushing device, in order to more conveniently adjust the sizes of the ball grooves 14 and the strip - shaped slots 16, we carefully set the key component of the sieve plate 20. The ball grooves 14 and the strip - shaped slots 16 are accurately opened at the surface positions of the sieve plate 20. When it is necessary to make corresponding adjustments to the crushing quality according to the actual production situation or usage requirements, only by replacing the sieve plate 20 with different specifications and sizes can the sizes of the ball grooves 14 and the strip - shaped slots 16 be changed simultaneously. This design greatly improves the flexibility and adaptability of the device.

[0054] In terms of the installation method, the sieve plate 20 is fixed by bolts 21. This fixing method has many advantages. On the one hand, it ensures the stability and reliability of the sieve plate 20 during the operation of the device. On the other hand, when it is necessary to replace the sieve plate 20, the operator can easily disassemble and install the bolts 21 to achieve the rapid replacement of the sieve plate 20, which is highly practical and has a good usage effect.

[0055] In summary, a crushing device for asphalt recovery according to an embodiment of the present invention has a reasonable structure. It can accurately identify and divert asphalt in different forms, enabling it to enter the appropriate crushing mechanism for crushing operations. For non-blocky asphalt forms, they are first uniformly pre-crushed and converted into blocky asphalt, and then concentrated with the original blocky asphalt to be crushed by the block crushing mechanism 7. Each link of this device has a detailed division of labor and a tacit cooperation. While significantly improving the crushing efficiency, it effectively ensures the stability of the crushing quality, combining practicality and high efficiency, and has a good use effect.

[0056] In the description of this specification, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0057] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0058] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A crushing device for asphalt recovery, characterized in that: include: Crushing box (1): the interior is divided into a first chamber (2), a second chamber (3) and a third chamber (4) in sequence by partitions, a slope portion (5) is provided on the top of the first chamber (2), and a triangular seat (6) adapted to the angle of the slope portion (5) is provided on the top of the second chamber (3); The block crushing mechanism (7), the ball crushing mechanism (8) and the sheet crushing mechanism (9) are respectively arranged on the inner wall of the lower end of the first chamber (2), the inner wall of the middle end of the second chamber (3) and the top of the third chamber (4); A guide plate (10) is obliquely arranged on the inner wall of the upper end of the three chambers (4), with its bottom end penetrating into the interior of the first chamber (2) and located on one side of the top of the block crushing mechanism (7); The U-shaped screen frame (11) is rotatably connected to the connecting ear (12) of the crushing box (1). The upper horizontal frame (13) of the U-shaped screen frame (11) is overlapped on the slope (5) and the top of the triangular seat (6), and its rear end is aligned with the feeding end of the fragmentation mechanism (9). The inner wall of the upper horizontal frame (13) is respectively provided with a ball groove (14) and a ball frame (15) at positions corresponding to the top of the triangular seat (6). The inner wall of the upper horizontal frame (13) is evenly provided with strip grooves (16) except for the ball groove (14). The lower support frame (17) of the U-shaped screen frame (11) is slidably connected to the surface of the crushing box (1), and its rear end is overlapped on the cam (18) on the surface of the crushing box (1). The cam (18), the fragmentation mechanism (7), the ball crushing mechanism (8) and the fragmentation mechanism (9) are all uniformly driven by a driving mechanism (19) provided on the surface of the crushing box (1).

2. The crushing device for asphalt recovery according to claim 1, characterized in that: The block crushing mechanism (7) is a block-shaped double-roller crushing mechanism, comprising a crushing box (71), the inner wall of which is symmetrically rotatably connected to a first crushing roller (72), and a groove on the surface of the crushing box (71) is symmetrically rotatably connected to a transmission gear (73), which meshes with each other, wherein one end of the central axis of one set of transmission gears (73) passes through the outside of the crushing box (1) and is connected to a driving mechanism (19), one end of the central axis of two sets of first crushing rollers (72) passes through the groove and is connected to the transmission gear (73), a material guide frame (74) is provided on the top of the crushing box (71) and is connected to each other, and a discharge port (75) is provided on the lower end surface of the crushing box (71), and corresponds to the position of a discharge slot (100) provided on the surface of the crushing box (1).

3. The crushing device for asphalt recovery according to claim 2, characterized in that: The ball crushing mechanism (8) is a spherical jaw plate crushing mechanism, comprising a stationary jaw plate (81) fixedly connected to the inner wall of one side of the middle end of the second chamber (3), a movable jaw plate (82) rotatably connected to the inner wall of the other side of the middle end of the second chamber (3), and a push rod (88) evenly hingedly fixed to the lower end surface of the movable jaw plate (82), the stationary jaw plate (81), the movable jaw plate (82) and the push rod (88) are all located on one side of the top of the material guide frame (74) and the material guide plate (10), a synchronous shaft (83) is rotatably connected to one side of the top of the push rod (88), and a U-shaped seat (84) is evenly arranged on the surface of the synchronous shaft (83), and one end of the synchronous shaft (83) passes through the outside of the crushing box (1) and connected to the driving mechanism (19); a mounting seat (85) is provided on one side of the bottom of the U-shaped seat (84); and a transmission block (86) is vertically slidably connected to the surface of the mounting seat (85); a connecting rod (87) is hingedly fixed between one end of the transmission block (86) and the U-shaped seat (84); the other end of the transmission block (86) is hingedly fixed to an end of a push rod (88) away from the lower end surface of the movable jaw plate (82); a transmission rod (89) is slidably connected to the inner wall of the mounting seat (85) and a spring (810) is fixedly connected to the surface of the mounting seat (85); and an end of the transmission rod (89) away from the mounting seat (85) is hingedly fixed to the lower end surface of the movable jaw plate (82).

4. The crushing device for asphalt recovery according to claim 3, characterized in that: The shredding mechanism (9) is a sheet-shaped knife roller shredding mechanism. The shredding mechanism (9) comprises a frame (91) fixedly connected to the top of the three chambers (4). The bottom of the frame (91) is fixedly connected to an arc screen frame (95). The arc screen frame (95) is located on one side of the top of the movable jaw plate (82) and the guide plate (10) and is located inside the three chambers (4). The inner wall of the frame (91) is rotatably connected to a cross (92). The outer end surface of the cross (92) is evenly fixedly connected to a metal cutter (93) in a counterclockwise direction. A second shredding roller (94) is sleeved on the central axis of the cross (92) and is located inside the metal cutter (93). One end of the central axis of the cross (92) passes through the outside of the frame (91) and is fixedly connected to an upper drive gear (96). The upper drive gear (96) is connected to the drive mechanism (19).

5. The crushing device for asphalt recovery according to claim 1, characterized in that: A limit guide post (61) and a limit groove are respectively arranged at positions corresponding to the top of the slope portion (5) and the triangular seat (6) and the bottom of the upper horizontal frame (13). The limit guide post (61) is located in the limit groove and is slidably connected to the inner wall of the limit groove. A rubber pad is arranged on the top of the limit guide post (61).

6. The crushing device for asphalt recovery according to claim 1, characterized in that: A limit shaft (171) and an arc groove are respectively arranged at positions corresponding to the surface of the lower support frame (17) and the surface of the crushing box (1). The limit shaft (171) is located in the arc groove and is slidably connected to the inner wall of the arc groove.

7. The crushing device for asphalt recovery according to claim 1, characterized in that: The width of the strip groove (16) is larger than that of block asphalt and smaller than that of spherical asphalt, and the width of the spherical groove (14) is larger than that of spherical asphalt and smaller than that of flake asphalt.

8. The crushing device for asphalt recovery according to claim 1, characterized in that: The angle range of the slope portion (5) and the triangular seat (6) is set between 20° and 25°.

9. The crushing device for asphalt recovery according to claim 1, characterized in that: The inner wall of the upper horizontal frame (13) is fixedly connected to a screen plate (20) via bolts (21), and the ball grooves (14) and the strip grooves (16) are respectively formed on the surface of the screen plate (20).

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