Asphalt preparation raw material crushing equipment and crushing method

Abstract

The invention relates to the technical field of asphalt raw material crushing, and discloses asphalt preparation raw material crushing equipment and a crushing method.The asphalt preparation raw material crushing equipment comprises a crushing box and a material collecting box, a guide hopper is fixedly arranged at the bottom of the crushing box, a discharging pipe is fixedly arranged at the bottom end of the guide hopper, and mounting frames are fixedly arranged on the two sides of the material collecting box correspondingly; a screening barrel is rotationally arranged between the two mounting frames, a feeding pipe is fixedly arranged at the bottom of the mounting frame located on the right side, one end of the feeding pipe is rotationally connected with the middle of one end of the screening barrel, and the other end of the feeding pipe is in sliding fit with the discharging pipe; under the action of the synchronous transmission part, the screening barrel can be synchronously driven to rotate synchronously in the raw material crushing process, the crushed raw materials are screened, the material collecting box and the screening barrel are synchronously driven to move up and down in the rotating process of the screening barrel, and screening holes of the screening barrel are prevented from being blocked by the raw materials; and meanwhile, the impact roller is driven to intermittently vibrate the screening barrel, and the cleaning effect is further achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of asphalt raw material crushing, and in particular to asphalt preparation raw material crushing equipment and a crushing method. Background Art

[0002] Asphalt is a dark brown complex mixture composed of hydrocarbons of different molecular weights and their non-metallic derivatives. It is a kind of high-viscosity organic liquid, mostly existing in liquid or semi-solid petroleum form. It has a black surface and is soluble in carbon disulfide and carbon tetrachloride. Asphalt is an organic gelling material that is waterproof, moisture-proof and corrosion-resistant. In the asphalt production process, a crushing device is required to crush the raw materials.

[0003] After searching, the application number 202310532419.0 disclosed an asphalt raw material mixing, crushing and screening device and its use method, which includes a mixing bin, a discharge port is provided at the bottom of the mixing bin, a mixing mechanism is provided inside the mixing bin, and the mixing mechanism includes a rotating shaft and a mixing rod; a feed bin is provided on the outer wall of one side of the top of the mixing bin, a feed port is provided at the top of the feed bin, a crushing mechanism is provided at the upper end of the inner part of the feed bin, and the crushing mechanism includes two groups of crushing rollers, and the crushing teeth on the two groups of crushing rollers are meshed; a screening mechanism is provided at the lower end of the inner part of the mixing bin, and the screening mechanism includes a screen and a screening port; an asphalt inlet for adding asphalt is provided on one side of the top of the mixing bin. The present invention has a simple structure and is easy to use. It integrates the crushing, screening and mixing of asphalt pavement raw material preparation, improves preparation efficiency, shortens preparation process, reduces preparation cost, and has high use value.

[0004] However, the above method still has the following defects in actual use: the raw materials need to be screened after crushing, which requires a separate setting and cannot be integrated. The device with screening function also needs to be driven by multiple power sources, which increases energy consumption, and the screening effect is limited, which can easily cause the screening holes to be blocked or the materials to be discharged without being completely screened. Summary of the invention

[0005] The object of the present invention is to provide a raw material crushing device and a crushing method for asphalt preparation, which has the effect of integrating crushing and screening and is not easy to cause clogging of the screen holes.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: an asphalt preparation raw material crushing equipment, including a crushing box and an aggregate box, a guide hopper is fixedly provided at the bottom of the crushing box, a discharge pipe is fixedly provided at the bottom end of the guide hopper, mounting frames are fixedly provided on both sides of the aggregate box, a screening cylinder is rotatably provided between the two mounting frames, a feed pipe is fixedly provided at the bottom of the mounting frame on the right side, one end of the feed pipe is rotatably connected to the middle part of one end of the screening cylinder, and the other end of the feed pipe is slidably matched with the discharge pipe, a side plate is fixedly provided on the side of the top of the aggregate box, and an impact roller is rotatably provided on the top of one of the side plates, a base is provided below the aggregate box for slidingly matching with the aggregate box, a synchronous transmission component is provided between the base and the crushing box, and the base is connected to the side of the crushing box through a mounting column.

[0007] A rotating shaft rotatably connected to another mounting frame is fixedly provided at the middle of the other end of the screening cylinder, a transmission gear 2 is fixedly provided on the surface of the rotating shaft, a rotating groove is provided on the top of one of the side plates, a connecting shaft is rotatably provided inside the rotating groove, a linkage plate is fixedly provided on the surface of the connecting shaft, the impact roller is fixedly arranged at one end of the linkage plate, a transmission gear 1 is fixedly provided at one end of the connecting shaft, the transmission gear 2 is an incomplete gear, and the transmission gear 1 is meshed with the transmission gear 2, and a limiting frame is fixedly provided on one side of one of the side plates.

[0008] A force storage spring is fixedly connected to the inner side of the limit frame, and one end of the force storage spring away from the limit frame contacts the linkage plate. A plurality of hemispherical protrusions matching the sieve holes on the screening cylinder are fixedly installed on the side of the impact roller close to the screening cylinder.

[0009] The present invention is further configured as follows: a crushing chamber with a circular cross-section is provided inside the crushing box, a crushing roller is provided inside the crushing chamber, a crushing knife 1 is fixedly provided on the surface of the crushing roller, crushing knives 2 which are staggered with the crushing knife 1 are fixedly provided on both sides of the crushing chamber, a mounting shaft rotatably connected to the end of the crushing box is fixedly provided in the middle of the crushing roller, a motor frame is fixedly provided at one end of the crushing box, a driving motor is fixedly provided on one side of the motor frame, and a transmission shaft of the driving motor is fixedly connected to one end of the mounting shaft.

[0010] The present invention is further configured as follows: a feed trough is provided on the top of the crushing box, a feed plate fixedly connected to the top of the crushing box is provided on one side of the feed trough, the feed plate is inclined, a heating plate is embedded on the surface of the feed plate, a staggered material guide plate is fixedly provided on the surface of the feed plate, and a baffle plate fixedly connected to the top of the crushing box is provided on the other side of the feed trough.

[0011] The present invention is further configured as follows: the synchronous transmission component includes a bevel gear 1, a mounting seat, a bevel gear 2, a support, a bevel gear 3, a fixed seat, a spline shaft and a bevel gear 4, the bevel gear 1 is fixedly arranged at one end of the rotating shaft, the mounting seat is fixedly arranged on one side of another mounting frame, a mounting tube is rotatably provided in the middle of the mounting seat, a bevel gear 2 meshing with the bevel gear 1 is fixedly provided on the top of the mounting tube, the support is provided with two and fixedly mounted on the top of the base, a support shaft is rotatably provided between the two supports, the bevel gear 3 is fixedly arranged at one end of the support shaft, the fixed seat is fixedly arranged on one side of the base, a spline shaft mating with the mounting tube is rotatably provided on the top of the fixed seat, a key groove mating with the spline of the spline shaft is provided on the inner wall of the mounting tube, the bevel gear 4 is arranged at the bottom of the spline shaft, and the bevel gear 4 meshes with the bevel gear 3, a transmission wheel 1 is fixedly provided at the other end of the mounting shaft, a transmission wheel 2 is fixedly provided at the other end of the support shaft, and a transmission belt is provided between the transmission wheel 2 and the transmission wheel 1.

[0012] The present invention is further configured as follows: a guide rod is fixedly provided on the top of the base, a guide seat slidably matched with the guide rod is fixedly provided on the side of the collecting box, and a buffer spring sleeved on the outside of the guide rod is provided between the guide seat and the base.

[0013] The present invention is further configured as follows: an eccentric wheel is fixedly provided at the middle of the support shaft, a rotating frame is fixedly provided at the bottom end of the collecting box, and a guide wheel cooperating with the eccentric wheel is rotatably provided at the bottom of the rotating frame.

[0014] The present invention is further configured as follows: a collecting trough is provided at the bottom of the aggregate box, and a cleaning plate is embedded in the interior of the collecting trough, a damping shaft rotatably connected to the side wall of the aggregate box is provided above the cleaning plate, a connecting frame is fixedly provided at one end of the damping shaft, a limiting seat is fixedly provided at the bottom of the connecting frame, a material discharge trough is provided on the surface of the screening cylinder, a sealing plate is embedded in the interior of the material discharge trough, and the sealing plate is connected to the material discharge trough by fixing screws.

[0015] The pulverizing method of the above-mentioned asphalt preparation raw material pulverizing equipment comprises the following steps: S1: Add the raw materials for asphalt preparation into the crushing box through the feeding plate, and use the heating plate on the surface of the feeding plate to preliminarily dry the added raw materials; S2: Start the driving motor, which drives the internal crushing roller to rotate and crush the added raw materials; S3: The crushed raw materials are discharged into the screening drum. Under the action of the synchronous transmission component, the screening drum is driven to rotate synchronously while the crushing roller rotates to screen the crushed raw materials; S4: During the rotation of the screening drum, the aggregate box is synchronously driven to vibrate up and down, and the impact roller is driven to intermittently vibrate the screening drum to prevent the raw materials from clogging the screen holes of the screening drum; S5: The screened raw materials fall into the aggregate box through the sieve holes of the screening cylinder for collection. After the screening is completed, the qualified raw materials in the aggregate box are collected, and the sealing plate is removed to clean up the unqualified raw materials in the screening cylinder.

[0016] In summary, the present invention has the following beneficial effects: the present invention can first crush the raw materials and then screen them, thereby ensuring the crushing effect of the raw materials, and all of them are driven by the same driving motor under the action of the mechanical transmission structure, thereby reducing energy consumption; under the action of the synchronous transmission component, the screening drum can be synchronously driven to rotate during the crushing process of the raw materials, and the crushed raw materials can be screened. During the rotation of the screening drum, the aggregate box and the screening drum can be synchronously driven to move up and down, thereby preventing the raw materials from causing the screen holes of the screening drum to be blocked, and at the same time, the impact roller can be driven to intermittently vibrate the screening drum, thereby further playing a cleaning role. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is one of the schematic diagrams of the three-dimensional structure of the present invention; Figure 2 This is the second schematic diagram of the three-dimensional structure of the present invention; Figure 3 It is one of the cross-sectional structural schematic diagrams of the present invention; Figure 4 This is the second schematic diagram of the cross-sectional structure of the present invention; Figure 5 For the present invention Figure 2 A schematic diagram of the enlarged structure at point A; Figure 6 For the present invention Figure 2 A schematic diagram of the enlarged structure at B; Figure 7 For the present invention Figure 3 A schematic diagram of the enlarged structure at C; Figure 8 For the present invention Figure 4 A schematic diagram of the structure at D of FIG. Fig. 9 It is a schematic structural diagram of the impact roller and the hemispherical protrusion of the present invention.

[0018] In the figure: 1. crushing box; 101. feeding plate; 102. heating plate; 103. material guide plate; 104. crushing roller; 105. crushing knife 1; 106. crushing knife 2; 107. mounting shaft; 108. material blocking plate; 109. motor frame; 1010. driving motor; 1011. transmission wheel 1; 1012. material guide hopper; 1013. material discharge pipe; 1014. mounting column; 2. material collecting box; 201. mounting frame; 202. material feeding pipe; 203. screening cylinder; 204. rotating shaft; 205. bevel gear 1; 206. mounting seat; 207. mounting pipe; 208. bevel gear 2; 209. linkage plate; 2010. impact roller; 2011. connecting shaft; 2012, transmission gear one; 2013, limit frame; 2014, cleaning plate; 2015, damping shaft; 2016, connecting frame; 2017, limit seat; 2018, rotating frame; 2019, guide wheel; 2020, guide seat; 2021, transmission gear two; 2022, sealing plate; 2023, side plate; 2024, hemispherical protrusion; 3, base; 301, guide rod; 302, buffer spring; 303, support; 304, support shaft; 305, bevel gear three; 306, eccentric wheel; 307, fixed seat; 308, spline shaft; 309, bevel gear four; 3010, transmission wheel two; 3011, transmission belt; 4, storage spring. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the accompanying drawings in the embodiments of the present invention.

[0020] See also Figures 1 to 9In an embodiment of the present invention, an asphalt preparation raw material crushing equipment includes a crushing box 1 and an aggregate box 2, wherein a guide hopper 1012 is fixedly provided at the bottom of the crushing box 1, and a discharge pipe 1013 is fixedly provided at the bottom end of the guide hopper 1012. A discharge trough corresponding to the guide hopper 1012 is provided at the bottom of the crushing box 1, so that the crushed raw material is discharged into the guide hopper 1012 through the discharge trough and discharged through the discharge pipe 1013. Mounting frames 201 are fixedly provided on both sides of the aggregate box 2, and a screening drum 203 is rotatably provided between the two mounting frames 201. A plurality of sieve holes are provided on the surface of the screening drum 203 to screen the crushed raw material. A feed pipe 202 is fixedly provided at the bottom of the mounting frame 201 on the right side, and one end of the feed pipe 202 is rotatably connected to the middle part of one end of the screening drum 203, and the two are rotatably connected through a sealed bearing, and the other end of the feed pipe 202 is slidably matched with the discharge pipe 1013, and does not interfere with the screening drum 203. The top side of the aggregate box 2 is fixed with a side plate 2023 to block the raw materials screened by the screening drum 203 and prevent the raw materials from falling to the outside of the aggregate box 2. An impact roller 2010 is rotatably provided on the top of one of the side plates 2023. A base 3 is provided below the aggregate box 2 to slide up and down with it. A synchronous transmission component is provided between the base 3 and the crushing box 1. When the crushing roller 104 rotates, the screening drum 203 is driven to rotate synchronously, and during the rotation of the screening drum 203, the screening drum 203 can be driven to vibrate up and down synchronously. At the same time, the impact roller 2010 is driven to intermittently impact the screening drum 203 to make it vibrate, so as to prevent the sieve holes of the screening drum 203 from being blocked and play a cleaning role. The base 3 is connected to the side of the crushing box 1 through the mounting column 1014. A mounting plate is fixedly provided at one end of the mounting column 1014 close to the crushing box 1, and the mounting plate is connected to the side of the crushing box 1 through the mounting screws.

[0021] In the present embodiment, preferably, a pulverizing chamber with a circular cross-section is provided inside the pulverizing box 1, a pulverizing roller 104 is provided inside the pulverizing chamber, a pulverizing knife 105 is fixedly provided on the surface of the pulverizing roller 104, pulverizing knives 106 106 staggered with the pulverizing knife 105 are fixedly provided on both sides of the pulverizing chamber, a mounting shaft 107 rotatably connected to the end of the pulverizing box 1 is fixedly provided in the middle of the pulverizing roller 104, a motor frame 109 is fixedly provided at one end of the pulverizing box 1, a driving motor 1010 is fixedly provided at one side of the motor frame 109, a transmission shaft of the driving motor 1010 is fixedly connected to one end of the mounting shaft 107, and when the driving motor 1010 is working, the mounting shaft 107 can be driven to rotate, thereby driving the pulverizing roller 104 to rotate, and the added raw materials are pulverized by using the staggered pulverizing knives 105 and pulverizing knives 106.

[0022] In the present embodiment, preferably, a feed trough is provided on the top of the crushing box 1, and a feed plate 101 fixedly connected to the top of the crushing box 1 is provided on one side of the feed trough, and the feed plate 101 is inclined, and a heating plate 102 is embedded on the surface of the feed plate 101 to preliminarily heat and dry the added raw materials, and staggered guide plates 103 are fixedly provided on the surface of the feed plate 101, and the staggered guide plates 103 can be used to guide the added raw materials to the interior of the crushing box 1, and a baffle plate 108 fixedly connected to the top of the crushing box 1 is provided on the other side of the feed trough to protect the added raw materials and prevent them from falling to the outside.

[0023] In this embodiment, preferably, a rotating shaft 204 rotatably connected to another mounting frame 201 is fixedly provided at the middle of the other end of the screening drum 203, a transmission gear 2021 is fixedly provided on the surface of the rotating shaft 204, a rotating groove is provided on the top of one of the side plates 2023, a connecting shaft 2011 is rotatably provided inside the rotating groove, a linkage plate 209 is fixedly provided on the surface of the connecting shaft 2011, the impact roller 2010 is fixedly provided at one end of the linkage plate 209, and a transmission gear 2021 is fixedly provided on one end of the connecting shaft 2011. The gear 1 2012 and the transmission gear 2 2021 are incomplete gears, and the transmission gear 1 2012 meshes with the transmission gear 2 2021. When the screening drum 203 rotates, the transmission gear 2 2021 can be driven to rotate. Under the meshing cooperation between the transmission gear 2 2021 and the transmission gear 1 2012, the linkage plate 209 is driven to rotate intermittently outward. A limiting frame 2013 is fixed on one side of one of the side plates 2023 to limit the position of the linkage plate 209 so that it can fall back to the screening drum 203 under the action of gravity. The surface of the limiting frame 2013 plays the role of intermittent vibration. The inner side of the limiting frame 2013 is fixedly connected with a force storage spring 4. One end of the force storage spring 4 away from the limiting frame 2013 is in contact with the linkage plate 209. Through the setting of the force storage spring 4, when the linkage plate 209 rotates outward, the force storage spring 4 can be compressed. After the gear teeth on the transmission gear 2021 are separated from the transmission gear 2012, under the elastic force of the force storage spring 4, the linkage plate 209 rotates inward quickly, so that the speed and The pressure is increased to improve the vibration effect, so that the raw materials attached to the screening drum 203 fall off quickly to improve the screening efficiency; a plurality of hemispherical protrusions 2024 adapted to the sieve holes on the screening drum 203 are fixedly installed on the side of the impact roller 2010 close to the screening drum 203. As the screening drum 203 rotates, the hemispherical protrusions 2024 intermittently enter the sieve holes on the surface of the screening drum 203, thereby cleaning the raw materials blocked in the sieve holes to prevent the sieve holes from being blocked. In combination with the impact of the impact roller 2010, the cleaning effect of the sieve holes can be significantly improved.

[0024] In this embodiment, preferably, the synchronous transmission component includes a bevel gear 1 205, a mounting seat 206, a bevel gear 208, a support 303, a bevel gear 305, a fixed seat 307, a spline shaft 308 and a bevel gear 4 309, wherein the bevel gear 1 205 is fixedly arranged at one end of the rotating shaft 204, the mounting seat 206 is fixedly arranged on one side of another mounting frame 201, a mounting tube 207 is rotatably provided in the middle of the mounting seat 206, a bevel gear 208 meshing with the bevel gear 1 205 is fixedly provided on the top of the mounting tube 207, the support 303 is provided with two and fixedly installed on the top of the base 3, a support shaft 304 is rotatably provided between the two supports 303, the bevel gear 305 is fixedly arranged at one end of the support shaft 304, the fixed seat 307 is fixedly arranged on one side of the base 3, a spline shaft 308 cooperating with the mounting tube 207 is rotatably provided on the top of the mounting tube 2 The inner wall of 07 is provided with a keyway that cooperates with the spline of the spline shaft 308, so that the mounting tube 207 can rotate and move up and down at the same time. The bevel gear four 309 is arranged at the bottom of the spline shaft 308, and the bevel gear four 309 is meshed with the bevel gear three 305. When the support shaft 304 rotates, the bevel gear three 305 can be driven to rotate. Under the meshing cooperation of the bevel gear four 309 and the bevel gear three 305, the spline shaft 308 is driven to rotate, thereby driving the bevel gear two 208 to rotate. Under the meshing cooperation of the bevel gear two 208 and the bevel gear one 205, the screening drum 203 is driven to rotate. The other end of the mounting shaft 107 is fixedly provided with a transmission wheel one 1011, and the other end of the support shaft 304 is fixedly provided with a transmission wheel two 3010. A transmission belt 3011 is transmitted between the transmission wheel two 3010 and the transmission wheel one 1011, and when the mounting shaft 107 rotates, the support shaft 304 can be driven to rotate synchronously.

[0025] In this embodiment, preferably, a guide rod 301 is fixedly provided on the top of the base 3, and a guide seat 2020 that slides with the guide rod 301 is fixedly provided on the side of the aggregate box 2. The sliding cooperation between the guide seat 2020 and the guide rod 301 guides the movement of the aggregate box 2. A buffer spring 302 is provided between the guide seat 2020 and the base 3 and is sleeved on the outside of the guide rod 301. It buffers the aggregate box 2 during its falling process and improves the vibration effect.

[0026] In this embodiment, preferably, an eccentric wheel 306 is fixedly provided in the middle part of the support shaft 304, and a rotating frame 2018 is fixedly provided at the bottom end of the aggregate box 2. A guide wheel 2019 cooperating with the eccentric wheel 306 is rotatably provided at the bottom of the rotating frame 2018. When the support shaft 304 rotates, the eccentric wheel 306 can be driven to rotate. The guide wheel 2019 is pushed up and down under the eccentric action of the eccentric wheel 306, thereby pushing the screening drum 203 to move up and down, thereby improving the vibration effect.

[0027] In this embodiment, preferably, a collecting groove is provided at the bottom of the collection box 2, and a cleaning plate 2014 is embedded in the collecting groove, and a damping shaft 2015 rotatably connected to the side wall of the collection box 2 is provided above the cleaning plate 2014, and a connecting frame 2016 is fixedly provided at one end of the damping shaft 2015, and a limiting seat 2017 is fixedly provided at the bottom of the connecting frame 2016, and the limiting seat 2017 can be used to limit the position of the cleaning plate 2014 to prevent the cleaning plate 2014 from falling off, and the damping shaft 2015 can be used to adjust the position of the limiting seat 2017. , release the limitation on the cleaning plate 2014, so that the cleaning plate 2014 can be disassembled to collect and clean the raw materials inside the collecting box 2, and the surface of the screening cylinder 203 is provided with a material discharge trough, and the unqualified raw materials screened out inside can be discharged after the screening is completed. A sealing plate 2022 is embedded in the material discharge trough, which can seal the material discharge trough to prevent the raw materials inside from falling, and the sealing plate 2022 is connected to the material discharge trough by fixing screws, and the position of the sealing plate 2022 is limited to prevent the sealing plate 2022 from falling off during the rotation of the screening cylinder 203.

[0028] A method for crushing raw materials for preparing asphalt, comprising the following steps: S1: Add the raw materials for asphalt preparation into the crushing box 1 through the feeding plate 101, and use the heating plate 102 on the surface of the feeding plate 101 to preliminarily dry the added raw materials; S2: starting the driving motor 1010, the driving motor 1010 drives the internal crushing roller 104 to rotate, and crushes the added raw materials; S3: The crushed raw materials are discharged into the screening drum 203. Under the action of the synchronous transmission component, the screening drum 203 is driven to rotate synchronously while the crushing roller 104 rotates, so as to screen the crushed raw materials; S4: During the rotation of the screening drum 203, the collecting box 2 is synchronously driven to vibrate up and down, and the impact roller 2010 is driven to intermittently vibrate the screening drum 203 to prevent the raw materials from clogging the screen holes of the screening drum 203; S5: The screened raw materials fall into the aggregate box 2 through the sieve holes of the screening cylinder 203 for collection. After the screening is completed, the qualified raw materials in the aggregate box 2 are collected, and the sealing plate 2022 is removed to clean up the unqualified raw materials in the screening cylinder 203.

[0029] When in use, first start the driving motor 1010, the rotation of the transmission shaft of the driving motor 1010 can drive the installation shaft 107 to rotate, thereby driving the crushing roller 104 to rotate, and then the raw materials are added to the inside of the crushing box 1 through the feeding plate 101, and the added raw materials are heated and dried by the heating plate 102. At the same time, the guide plate 103 provided can guide the added raw materials to prevent the accumulation of raw materials, and can increase the heating time to ensure the drying effect; when the crushing roller 104 rotates, the added raw materials are crushed by the staggered crushing knife 1 105 and the crushing knife 2 106, and the crushed raw materials enter the interior of the screening cylinder 203 through the guide hopper 1012, the discharge pipe 1013 and the feed pipe 202, and the crushed raw materials are screened by the sieve holes on the surface of the screening cylinder 203, so that qualified raw materials fall into the collecting box 2 through the sieve holes.

[0030] When the installation shaft 107 rotates, the transmission wheel 1 1011, the transmission wheel 2 3010 and the transmission belt 3011 can drive the support shaft 304 to rotate synchronously. When the support shaft 304 rotates, the eccentric wheel 306 can be driven to rotate. Under the eccentric action of the eccentric wheel 306, the guide wheel 2019 is pushed up and down, thereby pushing the screening drum 203 to move up and down, thereby improving the vibration effect. When the support shaft 304 rotates, the bevel gear 305 can be driven to rotate. Under the meshing cooperation of the bevel gear 4 309 and the bevel gear 305, the spline shaft 308 is driven to rotate. The inner wall of the installation tube 207 is provided with a keyway that cooperates with the spline of the spline shaft 308, so that the installation The tube 207 can rotate and move up and down at the same time, thereby driving the bevel gear 208 to rotate, and the meshing cooperation between the bevel gear 208 and the bevel gear 1 205 drives the screening drum 203 to rotate, and the raw materials are screened by the rotation of the screening drum 203. At the same time, when the screening drum 203 rotates, it can drive the transmission gear 2021 to rotate, and the meshing cooperation between the transmission gear 2021 and the transmission gear 1 2012 drives the linkage plate 209 to rotate intermittently outward. A limiting frame 2013 is fixedly provided on one side of one of the side plates 2023 to limit the position of the linkage plate 209, so that it can fall back to the surface of the screening drum 203 under the action of gravity, thereby playing a role of intermittent vibration.

[0031] By setting the force storage spring 4, when the linkage plate 209 rotates outward, the force storage spring 4 can be compressed. After the gear teeth on the transmission gear 2021 are separated from the transmission gear 2012, under the elastic force of the force storage spring 4, the linkage plate 209 rotates inward quickly, so that the speed and pressure of the impact roller 2010 hitting the surface of the screening drum 203 increase, so as to improve the vibration effect, so that the raw materials attached to the screening drum 203 fall off quickly, and as the screening drum 203 rotates, the hemispherical protrusions 2024 intermittently enter the sieve holes on the surface of the screening drum 203, so as to clean the raw materials blocked in the sieve holes and prevent the sieve holes from being blocked. In combination with the impact of the impact roller 2010, the cleaning effect of the sieve holes can be significantly improved.

[0032] After the screening is completed, the position of the limit seat 2017 can be adjusted by using the damping shaft 2015 to release the limitation on the cleaning plate 2014, so that the cleaning plate 2014 can be removed to collect and clean the raw materials inside the collecting box 2. The surface of the screening cylinder 203 is provided with a discharge trough. After the screening is completed, the screening cylinder 203 is rotated to the bottom, so that the unqualified raw materials screened out from the inside of the screening cylinder 203 can be discharged for collection.

[0033] The above description is only a preferred embodiment of the present invention, so all equivalent changes or modifications made according to the structure, characteristics and principles described in the scope of the patent application of the present invention are included in the scope of the patent application of the present invention.

Claims

1. An asphalt preparation raw material crushing device, comprising a crushing box (1) and an aggregate box (2), characterized in that: A guide hopper (1012) is fixedly provided at the bottom of the crushing box (1), a discharge pipe (1013) is fixedly provided at the bottom end of the guide hopper (1012), mounting frames (201) are fixedly provided on both sides of the collecting box (2), a screening cylinder (203) is rotatably provided between the two mounting frames (201), a feed pipe (202) is fixedly provided at the bottom of the mounting frame (201) on the right side, one end of the feed pipe (202) is rotatably connected to the middle of one end of the screening cylinder (203), The other end of the feed pipe (202) is slidably matched with the discharge pipe (1013); a side plate (2023) is fixedly provided on the side of the top of the aggregate box (2); a collision roller (2010) is rotatably provided on the top of one of the side plates (2023); a base (3) is provided below the aggregate box (2) and is slidably matched with the aggregate box (2); a synchronous transmission component is provided between the base (3) and the crushing box (1); and the base (3) is connected to the side of the crushing box (1) via a mounting column (1014); A rotating shaft (204) rotatably connected to another mounting frame (201) is fixedly provided in the middle of the other end of the screening cylinder (203); a transmission gear 2 (2021) is fixedly provided on the surface of the rotating shaft (204); a rotating groove is provided on the top of one of the side plates (2023); a connecting shaft (211) is rotatably provided inside the rotating groove; a linkage plate (209) is fixedly provided on the surface of the connecting shaft (2011); the impact roller (2010) is fixedly provided on one end of the linkage plate (209); a transmission gear 1 (212) is fixedly provided on one end of the connecting shaft (211); the transmission gear 2 (221) is an incomplete gear, and the transmission gear 1 (212) meshes with the transmission gear 2 (221); a limiting frame (213) is fixedly provided on one side of one of the side plates (2023); A force storage spring (4) is fixedly connected to the inner side of the limit frame (213); one end of the force storage spring (4) away from the limit frame (2013) is in contact with the linkage plate (209); and a plurality of hemispherical protrusions (2024) adapted to the sieve holes on the sieve cylinder (203) are fixedly mounted on a side of the impact roller (2010) close to the sieve cylinder (203).

2. The asphalt preparation raw material crushing equipment according to claim 1, characterized in that: A pulverizing chamber with a circular cross section is provided inside the pulverizing box (1), a pulverizing roller (104) is provided inside the pulverizing chamber, a pulverizing knife (105) is fixedly provided on the surface of the pulverizing roller (104), pulverizing knives (106) are fixedly provided on both sides of the pulverizing chamber and are arranged alternately with the pulverizing knife (105), a mounting shaft (107) rotatably connected to the end of the pulverizing box (1) is fixedly provided in the middle of the pulverizing roller (104), a motor frame (109) is fixedly provided at one end of the pulverizing box (1), a driving motor (1010) is fixedly provided on one side of the motor frame (109), and a transmission shaft of the driving motor (1010) is fixedly connected to one end of the mounting shaft (107).

3. The asphalt preparation raw material crushing equipment according to claim 1, characterized in that: A feed trough is provided on the top of the crushing box (1); a feed plate (101) fixedly connected to the top of the crushing box (1) is provided on one side of the feed trough; the feed plate (101) is arranged tilted; a heating plate (102) is embedded on the surface of the feed plate (101); staggered guide plates (103) are fixedly provided on the surface of the feed plate (101); and a baffle plate (108) fixedly connected to the top of the crushing box (1) is provided on the other side of the feed trough.

4. The asphalt preparation raw material crushing equipment according to claim 2, characterized in that: The synchronous transmission component comprises a bevel gear 1 (205), a mounting seat (206), a bevel gear 2 (208), a support (303), a bevel gear 3 (305), a fixed seat (307), a spline shaft (308) and a bevel gear 4 (309), wherein the bevel gear 1 (205) is fixedly arranged at one end of a rotating shaft (204), the mounting seat (206) is fixedly arranged at one side of another mounting frame (201), a mounting tube (207) is rotatably arranged in the middle of the mounting seat (206), a bevel gear 2 (208) meshing with the bevel gear 1 (205) is fixedly arranged at the top of the mounting tube (207), two supports (303) are provided and fixedly installed at the top of the base (3), a support shaft (304) is rotatably arranged between the two supports (303), and the Bevel gear three (305) is fixedly arranged at one end of the support shaft (304), the fixed seat (307) is fixedly arranged at one side of the base (3), the top end of the fixed seat (307) is rotatably provided with a spline shaft (308) that cooperates with the mounting tube (207), and a keyway that cooperates with the spline of the spline shaft (308) is provided on the inner wall of the mounting tube (207), the bevel gear four (309) is arranged at the bottom of the spline shaft (308), and the bevel gear four (309) is meshed with the bevel gear three (305), the other end of the mounting shaft (107) is fixedly provided with a transmission wheel one (1011), the other end of the support shaft (304) is fixedly provided with a transmission wheel two (3010), and a transmission belt (3011) is provided between the transmission wheel two (3010) and the transmission wheel one (1011).

5. The asphalt preparation raw material crushing equipment according to claim 1, characterized in that: A guide rod (301) is fixedly provided at the top of the base (3), a guide seat (2020) slidably engaged with the guide rod (301) is fixedly provided on the side of the collecting box (2), and a buffer spring (302) sleeved on the outside of the guide rod (301) is provided between the guide seat (2020) and the base (3).

6. The asphalt preparation raw material crushing equipment according to claim 4, characterized in that: An eccentric wheel (306) is fixedly provided in the middle of the support shaft (304), a rotating frame (2018) is fixedly provided at the bottom end of the collecting box (2), and a guide wheel (2019) cooperating with the eccentric wheel (306) is rotatably provided at the bottom of the rotating frame (2018).

7. The asphalt preparation raw material crushing equipment according to claim 1, characterized in that: The bottom of the material collecting box (2) is provided with a collecting trough, and a cleaning plate (2014) is embedded in the interior of the collecting trough; a damping shaft (2015) rotatably connected to the side wall of the material collecting box (2) is provided above the cleaning plate (2014); a connecting frame (2016) is fixedly provided at one end of the damping shaft (2015); a limiting seat (2017) is fixedly provided at the bottom of the connecting frame (2016); a material discharge trough is provided on the surface of the screening cylinder (203); a sealing plate (2022) is embedded in the interior of the material discharge trough, and the sealing plate (2022) is connected to the material discharge trough via fixing screws.

8. A method for crushing asphalt raw material using the crushing equipment according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1: adding raw materials for asphalt preparation into the interior of a crushing box (1) through a feeding plate (101), and performing preliminary drying on the added raw materials using a heating plate (102) on the surface of the feeding plate (101); S2: starting the driving motor (1010), the driving motor (1010) drives the internal crushing roller (104) to rotate, and crushes the added raw materials; S3: The crushed raw materials are discharged into the screening drum (203), and under the action of the synchronous transmission component, the crushing roller (104) rotates and drives the screening drum (203) to rotate synchronously, thereby screening the crushed raw materials; S4: during the rotation of the screening drum (203), the material collecting box (2) is synchronously driven to vibrate up and down, and at the same time, the impact roller (210) is driven to intermittently vibrate the screening drum (203) to prevent the raw materials from clogging the screen holes of the screening drum (203); S5: The screened raw materials fall through the sieve holes of the screening cylinder (203) into the collection box (2) for collection. After the screening is completed, the qualified raw materials in the collection box (2) are collected, the sealing plate (2022) is removed, and the unqualified raw materials in the screening cylinder (203) are cleaned.

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