A device for the mixing and preparation of asphalt mixtures with sieving function

Abstract

The present application relates to the technical field of asphalt preparation, in particular to a stirring preparation device for asphalt mixture with screening function, which comprises a screening mechanism, a stirring mechanism, a collecting mechanism and a base, the screening mechanism, the stirring mechanism and the collecting mechanism are horizontally arranged above the base, compared with the current stirring preparation device, the present application is provided with a screening plate and a slotting assembly, the screening plate is used for screening the broken pebbles, the slotting assembly is used for slotting treatment of the broken pebbles that pass the screening, so as to increase the edges and corners of the broken pebbles, and then the interlocking force and the internal friction force between the aggregates in the asphalt are enhanced, the present application is also provided with a vibrating motor and a double vibration mechanism, the vibrating motor controls the horizontal vibration of the screening plate through the double vibration mechanism, so as to avoid the blocking phenomenon in the screening process, the vibrating motor can control the reciprocating up-down lifting of the slotting seat through the double vibration mechanism, so as to improve the impact effect of the slotting seat on the broken pebbles.

Description

Technical Field

[0001] This invention relates to the field of asphalt preparation technology, specifically to a mixing and preparation device for asphalt mixtures with a screening function. Background Technology

[0002] Large-scale highway construction has begun in the high-altitude areas of western China. Due to the variable climate, low temperature, thin air, dry atmosphere and unusually strong solar radiation in these high-altitude and frigid regions, higher requirements are placed on the quality of asphalt concrete pavements. The demand for road crushed stone is also increasing. Currently, the abundant pebbles in local riverbeds have become an important source of stone materials for asphalt preparation.

[0003] However, existing asphalt mixture mixing and preparation equipment has the following problems in actual production, which often result in the asphalt failing to meet quality standards during paving. First, current mixing and preparation equipment cannot automatically screen out gravel of a specific size as needed, thus requiring a specialized screening machine. Second, because the surface of gravel in riverbeds is relatively smooth after being washed by water for a long time, although it meets the diameter requirements after crushing, the gravel has poor adhesion and low internal friction between stones. If used directly, it can easily affect the interlocking force and internal friction of the asphalt mixture. Third, current mixing and preparation equipment cannot ensure that the asphalt near and far from the heating parts is heated evenly during mixing, resulting in a large temperature difference and affecting the final molding. Summary of the Invention

[0004] The purpose of this invention is to provide a mixing and preparation device for asphalt mixture with screening function, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a mixing and preparation device for asphalt mixture with screening function, the mixing and preparation device including a screening mechanism, a mixing mechanism, an aggregate collection mechanism and a base, the screening mechanism, the mixing mechanism and the aggregate collection mechanism are all horizontally arranged above the base, the screening mechanism is located in the middle of the mixing mechanism and the aggregate collection mechanism, the screening mechanism includes a screening funnel, the screening funnel is provided with a partition plate, the partition plate divides the interior of the screening funnel into two areas: a screening chamber and a waste chamber, the screening chamber is connected to the mixing mechanism through a first discharge pipe, the waste chamber is connected to the aggregate collection mechanism through a second discharge pipe, the screening chamber is provided with a screening plate and a grooving assembly, the screening plate is located above the grooving assembly, the end of the partition plate near the screening plate is provided with a waste channel, the upper end of the waste channel is provided with a receiving trough, the receiving trough is provided with an opening plate and a cylinder, the cylinder controls the movement of the opening plate within the waste channel and the receiving trough.

[0006] The base serves as the installation foundation for this invention. A screening mechanism filters out qualified gravel, and a mixing mechanism mixes the gravel with asphalt. This invention includes a screening plate and a grooving assembly. The screening plate has screening holes. During operation, gravel is poured into the screening chamber. Qualified gravel passes through the screening holes and falls into the grooving assembly. The grooving assembly grooves the surface of the gravel, increasing its angularity and enhancing the interlocking force and internal friction between aggregates in the asphalt. This prevents the gravel surface from being too smooth, which would result in insufficient adhesion between the gravel and asphalt, affecting road quality. Finally, this invention also includes an opening plate and a cylinder. The screening plate is tilted towards the waste chamber. During the screening process, the cylinder retracts the opening plate into the collection trough periodically. Unqualified gravel that fails to pass through the screening holes then enters the collection mechanism along the waste channel, waste chamber, and second discharge pipe, facilitating subsequent secondary processing of the unqualified gravel.

[0007] Furthermore, a double vibration mechanism is provided at the lower end of the waste channel, and a vibration motor is provided on the outside of the screening funnel. The vibration motor controls the screening plate to vibrate horizontally through the double vibration mechanism, and the vibration motor controls the grooving assembly to groove the crushed pebbles through the double vibration mechanism.

[0008] Through the above technical solution, during the screening process, the vibrating motor controls the horizontal vibration of the screening plate through the dual vibration mechanism to avoid clogging and affect the falling of the crushed stones. At the same time, the vibrating motor can control the grooving component to groove the crushed stones through the dual vibration mechanism to ensure the interlocking force and internal friction between the aggregates in the asphalt.

[0009] Furthermore, the dual-vibration mechanism includes a conversion chamber, inside which a cam and a movable plate are arranged. The cam is fixedly mounted on the rotating shaft of the vibration motor, and the movable plate is movably mounted inside the conversion chamber via a return spring rod. A vibration groove is provided at one end of the waste channel near the dual-vibration mechanism, and a vibration block is provided at one end of the screening plate near the vibration groove. The vibration block is located inside the vibration groove. A transmission fluid is provided on the side of the movable plate away from the cam, and the end of the conversion chamber away from the screening chamber is connected to the vibration groove via a first guide groove.

[0010] In this invention, the end of the screening plate away from the partition is connected to the screening funnel via a flexible spring. The vibration motor drives the cam to rotate, causing the movable plate to reciprocate within the conversion chamber. When the movable plate moves away from the cam, the transmission fluid in the conversion chamber enters the vibration chamber along the first guide groove. Under the action of hydraulic pressure, the screening plate moves away from the waste channel. When the movable plate moves closer to the cam, the transmission fluid in the vibration chamber flows back into the conversion chamber along the first guide groove. Under the action of the flexible spring, the screening plate moves closer to the waste channel. Through the above technical solution, the purpose of horizontal vibration of the screening plate is achieved, avoiding excessive gravel on the screening plate and clogging of the screening holes.

[0011] Furthermore, the grooving assembly includes a grooving seat, a fixing frame, and a support rod. One end of the support rod is fixedly mounted on the partition plate, and the other end of the support rod is fixedly connected to the fixing frame. The support rod has a transmission groove and a vibration spring rod inside. The end of the conversion chamber away from the screening chamber is connected to the transmission groove through a second guide groove. The grooving seat is movably mounted in the fixing frame through the vibration spring rod. The grooving seat has an arc-shaped structure and a grooving spike is provided at the end near the screening plate.

[0012] Through the above technical solution, the crushed pebbles fall onto the slotted seat after passing through the screening holes. The slotted spikes on the slotted seat can slot the crushed pebbles to increase their sharpness. In addition, when the movable plate in the present invention moves back and forth in the conversion chamber, the transmission fluid in the conversion chamber not only intermittently enters the vibration groove, but also intermittently enters the transmission groove, so that the slotted seat can move up and down in the fixed frame. When the slotted seat rises, the slotted seat moves relative to the crushed pebbles, thereby improving the impact effect of the slotted seat on the crushed pebbles.

[0013] Furthermore, the grooving assembly also includes grooving plates, and two sets of grooving plates are provided. Both sets of grooving plates are provided with grooving spikes. The two sets of grooving plates are movably installed at the left and right ends of the fixed frame through a rotating shaft and an arc-shaped spring rod, respectively. At the same time, both sets of grooving plates are connected to the end of the grooving seat away from the screening plate through a connecting rope and a pulley.

[0014] With the above technical solution, when the slotted seat rises, the two sets of slotted plates form a regular "V" shape to facilitate the falling of the slotted gravel into the first discharge pipe. When the slotted seat falls, the two sets of slotted plates form an inverted "V" shape. At this time, the two sets of slotted plates serve to collect the gravel and prevent the gravel from falling directly into the first discharge pipe without being slotted.

[0015] Furthermore, the stirring mechanism includes a stirring tank, a mixing motor, a heating tube, a stirring rod, a feed pipe, and a stirring motor. An external gear is provided on the outside of the stirring tank. The mixing motor drives the stirring tank to rotate through a reduction gear assembly and the external gear. The heating tube is disposed in the inner wall interlayer of the stirring tank. The stirring rod is disposed in the internal cavity of the stirring tank. The stirring motor is disposed on the outside of the stirring tank and drives the stirring rod to rotate. The feed pipe is disposed at one end of the stirring tank near the screening mechanism, and a valve is provided on the feed pipe.

[0016] The above technical solution involves opening the valve on the feed pipe before asphalt mixing to allow qualified crushed stones to enter the mixing tank. When asphalt mixing is required, the valve on the feed pipe is closed, and then the mixing motor, heating pipe, and stirring motor are turned on. The mixing motor drives the mixing tank to rotate, the heating pipe heats the asphalt and provides subsequent heat preservation, and the stirring motor drives the stirring rod to rotate to achieve the purpose of mixing.

[0017] Furthermore, the stirring rod is provided with a material leveling component, which includes a material leveling block, a connecting sleeve, and an elastic block. The connecting sleeve is fitted onto the stirring rod, and the material leveling block is fixedly installed on the outside of the connecting sleeve. An elastic block is provided between the connecting sleeve and the stirring rod, and the interior of the elastic block is filled with gas. A stop block is provided at the end of the connecting sleeve and the stirring rod that are close to each other.

[0018] In this invention, the rotational speed of the stirring rod is greater than that of the mixing tank. During the rotation of the stirring rod, the connecting sleeve and the stop block set on the stirring rod can make the connecting sleeve rotate synchronously with the stirring rod. At this time, the material equalization block can push a part of the asphalt away from the inner wall of the mixing tank onto the inner wall of the mixing tank. Through the above technical solution, the stirring and heating speed can be accelerated and the overall temperature of the asphalt can be ensured to be uniform.

[0019] Furthermore, the elastic block is provided in four groups, and each group of elastic blocks has an airbag on both sides.

[0020] The present invention is equipped with an elastic block and an air bladder. During the rotation of the material leveling component, the connecting sleeve will squeeze the elastic block due to centrifugal force. At this time, the elastic block will deform, and the gas inside the elastic block will enter the air bladder. Through the above technical solution, a buffering effect is achieved, reducing the radial force of the material leveling component on the stirring rod and preventing the stirring rod from bending.

[0021] Compared with existing technologies, the beneficial effects achieved by this invention are as follows: Compared with current mixing and preparation devices, this invention is equipped with a screening plate and a grooving assembly. The screening plate has screening holes for screening crushed pebbles, and the grooving assembly grooves the screened crushed pebbles to increase their angularity, thereby enhancing the interlocking force and internal friction between the aggregates in the asphalt. This prevents the surface of the crushed pebbles from being too smooth, which would result in insufficient adhesion between the crushed pebbles and asphalt, affecting the quality of the road. This invention also includes a vibration motor and a dual-vibration mechanism. The vibration motor controls the horizontal vibration of the screening plate through the dual-vibration mechanism to avoid clogging during the screening process, which would affect the crushed pebbles. As the material falls, the vibration motor, through a dual-vibration mechanism, controls the slotting seat to move up and down repeatedly, allowing the slotting seat to move relative to the crushed pebbles, thereby improving the impact effect of the slotting seat on the crushed pebbles. Finally, the invention is equipped with a material leveling component. During the mixing process, the material leveling component can push a portion of the asphalt away from the inner wall of the mixing tank onto the inner wall of the mixing tank, thereby accelerating the mixing and heating speed and ensuring uniform overall temperature of the asphalt. At the same time, when the material leveling component rotates, the connecting sleeve will squeeze the elastic block due to centrifugal force, and the gas inside the elastic block will enter the air bladder. The elastic block and the air bladder play a buffering role, reducing the radial force of the material leveling component on the mixing rod and preventing the mixing rod from bending. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the screening mechanism structure of the present invention; Figure 3 This is the invention Figure 2 Schematic diagram of the structure of section A; Figure 4 This is a schematic diagram of the slotted component structure of the present invention; Figure 5 This is the invention Figure 4 Schematic diagram of section B in the middle; Figure 6 This is a schematic diagram of the working structure of the slotted component of the present invention; Figure 7 This is a schematic diagram of the stirring mechanism of the present invention; Figure 8 This is a side view cross-sectional structural diagram of the stirring mechanism of the present invention; Figure 9 This is a schematic diagram of the material homogenizing component and the stirring rod of the present invention.

[0023] In the diagram: 1-Screening mechanism, 11-Screening funnel, 111-Screening chamber, 112-Waste chamber, 12-Screening plate, 121-Vibrating block, 13-Grooving assembly, 131-Grooving seat, 132-Fixing frame, 133-Grooving plate, 1331-Arc spring rod, 134-Support rod, 1341-Vibrating spring rod, 14-Partition plate, 141-Opening plate, 142-Vibrating groove, 15-Dual vibration mechanism, 151-Conversion chamber, 1511-Cam, 1512-Moving plate, 2-Stirring mechanism, 21-Stirring tank, 22-Mixing motor, 23-Heating tube, 24-Stirring rod, 241-Equalizing assembly, 2411-Equalizing block, 2412-Connecting sleeve, 2413-Elastic block, 2414-Airbag, 25-Feed pipe, 26-Stirring motor, 3-Collection mechanism, 4-Base. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] like Figures 1-2 As shown, an asphalt mixture mixing and preparation device with screening function is disclosed. The mixing and preparation device includes a screening mechanism 1, a mixing mechanism 2, an aggregate collection mechanism 3, and a base 4. The screening mechanism 1, the mixing mechanism 2, and the aggregate collection mechanism 3 are all horizontally arranged above the base 4. The screening mechanism 1 is located in the middle of the mixing mechanism 2 and the aggregate collection mechanism 3. The screening mechanism 1 includes a screening funnel 11. A partition 14 is provided inside the screening funnel 11, which divides the interior of the screening funnel 11 into a screening chamber 111 and a waste chamber 112. The system has two zones: a screening chamber 111 connected to a mixing mechanism 2 via a first discharge pipe, and a waste chamber 112 connected to a collecting mechanism 3 via a second discharge pipe. The screening chamber 111 is equipped with a screening plate 12 and a slotting assembly 13. The screening plate 12 is positioned above the slotting assembly 13. A waste channel is provided at one end of a partition 14 near the screening plate 12. A collection trough is provided at the upper end of the waste channel. An opening plate 141 and a cylinder are provided inside the collection trough. The opening plate 141 is moved within the waste channel and the collection trough by the cylinder.

[0026] The base 4 serves as the installation foundation for this invention. Qualified crushed stones are screened out by the screening mechanism 1, and then mixed with asphalt by the mixing mechanism 2. This invention includes a screening plate 12 and a grooving assembly 13. The screening plate 12 has screening holes. During operation, crushed stones are poured into the screening chamber 111. Qualified crushed stones pass through the screening holes and fall into the grooving assembly 13. The grooving assembly 13 can groove the surface of the crushed stones, increasing their angularity and thus enhancing the interlocking force and internal friction between the aggregates in the asphalt, preventing... The surface of the un-crushed pebbles is too smooth, resulting in insufficient adhesion between the pebbles and asphalt, which affects the quality of the road. Finally, the present invention also includes an opening plate 141 and a cylinder. At the same time, the screening plate 12 in this application is tilted towards the waste chamber 112. During the screening process, every once in a while, the opening plate 141 can be retracted into the collection trough by the cylinder. At this time, the unqualified pebbles that have not passed through the screening holes will enter the collection mechanism 3 along the waste channel, the waste chamber 112 and the second discharge pipe, so as to facilitate the subsequent secondary processing of the unqualified pebbles.

[0027] like Figures 1-3 As shown, a double vibration mechanism 15 is provided at the lower end of the waste channel, and a vibration motor is provided on the outside of the screening funnel 11.

[0028] Through the above technical solution, during the screening process, the vibrating motor controls the horizontal vibration of the screening plate 12 through the double vibration mechanism 15 to avoid clogging and affect the falling of the crushed stones. At the same time, the vibrating motor can control the grooving component 13 to groove the crushed stones through the double vibration mechanism 15 to ensure the interlocking force and internal friction between the aggregates in the asphalt.

[0029] like Figures 2-3 As shown, the dual-vibration mechanism 15 includes a conversion chamber 151. Inside the conversion chamber 151, there is a cam 1511 and a movable plate 1512. The cam 1511 is fixedly mounted on the rotating shaft of the vibration motor. The movable plate 1512 is movably mounted inside the conversion chamber 151 via a return spring rod. A vibration groove 142 is provided at one end of the waste channel near the dual-vibration mechanism 15. A vibration block 121 is provided at one end of the screening plate 12 near the vibration groove 142. The vibration block 121 is located inside the vibration groove 142. A transmission fluid is provided on the side of the movable plate 1512 away from the cam 1511. The end of the conversion chamber 151 away from the screening chamber 111 is connected to the vibration groove 142 via a first guide groove.

[0030] In this invention, the end of the screening plate 12 away from the partition plate 14 is connected to the screening funnel 11 via a flexible spring. The vibration motor drives the cam 1511 to rotate, causing the movable plate 1512 to reciprocate within the conversion chamber 151. When the movable plate 1512 moves away from the cam 1511, the transmission fluid in the conversion chamber 151 enters the vibration groove 142 along the first guide groove. Under the action of hydraulic pressure, the screening plate 12 moves away from the waste channel. When the movable plate 1512 moves closer to the cam 1511, the transmission fluid in the vibration groove 142 flows back into the conversion chamber 151 along the first guide groove. Under the action of the flexible spring, the screening plate 12 moves closer to the waste channel. Through the above technical solution, the purpose of horizontal vibration of the screening plate 12 is achieved, avoiding excessive gravel on the screening plate 12 and clogging of the screening holes.

[0031] like Figures 2-5 As shown, the grooving assembly 13 includes a grooving seat 131, a fixing frame 132, and a support rod 134. One end of the support rod 134 is fixedly installed on the partition plate 14, and the other end of the support rod 134 is fixedly connected to the fixing frame 132. The support rod 134 has a transmission groove and a vibration spring rod 1341 inside. The end of the conversion chamber 151 away from the screening chamber 111 is connected to the transmission groove through a second guide groove. The grooving seat 131 is movably installed in the fixing frame 132 through the vibration spring rod 1341. The grooving seat 131 has an arc-shaped structure and a grooving spike is provided at the end near the screening plate 12.

[0032] Through the above technical solution, the crushed pebbles fall onto the slotted seat 131 after passing through the screening holes. The slotted spikes on the slotted seat 131 can slot the crushed pebbles to increase their sharpness. In addition, when the movable plate 1512 in this invention moves back and forth in the conversion chamber 151, the transmission fluid in the conversion chamber 151 not only intermittently enters the vibration groove 142, but also intermittently enters the transmission groove, so that the slotted seat 131 can move up and down in the fixed frame 132. When the slotted seat 131 rises, the slotted seat 131 moves relative to the crushed pebbles, thereby improving the impact effect of the slotted seat 131 on the crushed pebbles.

[0033] like Figures 2-6 As shown, the grooving assembly 13 also includes grooving plates 133. Two sets of grooving plates 133 are provided, and each set of grooving plates 133 is provided with grooving spikes. The two sets of grooving plates 133 are movably installed on the left and right ends of the fixed frame 132 through a rotating shaft and an arc-shaped spring rod 1331, respectively. At the same time, both sets of grooving plates 133 are connected to the end of the grooving seat 131 away from the screening plate 12 through a connecting rope and a pulley.

[0034] With the above technical solution, when the slotted seat 131 rises, the two sets of slotted plates 133 form a regular "V" shape to facilitate the falling of the slotted gravel into the first discharge pipe. When the slotted seat 131 falls, the two sets of slotted plates 133 form an inverted "V" shape. At this time, the two sets of slotted plates 133 serve to collect the gravel on the one hand, and prevent the gravel from falling directly into the first discharge pipe without being slotted on the other hand.

[0035] like Figure 1 , Figures 7-8 As shown, the stirring mechanism 2 includes a stirring tank 21, a mixing motor 22, a heating tube 23, a stirring rod 24, a feed pipe 25, and a stirring motor 26. An external gear is provided on the outside of the stirring tank 21. The mixing motor 22 drives the stirring tank 21 to rotate through a reduction gear assembly and the external gear. The heating tube 23 is located in the inner wall interlayer of the stirring tank 21. The stirring rod 24 is located in the internal cavity of the stirring tank 21. The stirring motor 26 is located on the outside of the stirring tank 21 and drives the stirring rod 24 to rotate. The feed pipe 25 is located at one end of the stirring tank 21 near the screening mechanism 1, and a valve is provided on the feed pipe 25.

[0036] With the above technical solution, before asphalt mixing, the valve on the feed pipe 25 is opened to allow qualified crushed stones to enter the mixing tank 21. When asphalt mixing is required, the valve on the feed pipe 25 is closed, and then the mixing motor 22, heating pipe 23 and mixing motor 26 are turned on. The mixing motor 22 drives the mixing tank 21 to rotate, the heating pipe 23 heats the asphalt and performs subsequent heat preservation, and the mixing motor 26 drives the mixing rod 24 to rotate to achieve the purpose of mixing.

[0037] like Figure 1 , Figures 7-9 As shown, a material leveling component 241 is provided on the stirring rod 24. The material leveling component 241 includes a material leveling block 2411, a connecting sleeve 2412, and an elastic block 2413. The connecting sleeve 2412 is fitted onto the stirring rod 24. The material leveling block 2411 is fixedly installed on the outside of the connecting sleeve 2412. An elastic block 2413 is provided between the connecting sleeve 2412 and the stirring rod 24. The interior of the elastic block 2413 is filled with gas. A baffle is provided at the end of the connecting sleeve 2412 and the stirring rod 24 that are close to each other.

[0038] In this invention, the rotational speed of the stirring rod 24 is greater than that of the mixing tank 21. During the rotation of the stirring rod 24, the connecting sleeve 2412 and the stop block provided on the stirring rod 24 can make the connecting sleeve 2412 and the stirring rod 24 rotate synchronously. At this time, the material equalization block 2411 can push a part of the asphalt away from the inner wall of the mixing tank 21 onto the inner wall of the mixing tank 21. Through the above technical solution, the speed of stirring and heating can be accelerated and the overall temperature of the asphalt can be ensured to be uniform.

[0039] like Figure 1 , Figures 7-9 As shown, there are four sets of elastic blocks 2413, and each set of elastic blocks 2413 has an airbag 2414 on both sides.

[0040] The present invention is provided with an elastic block 2413 and an air bladder 2414. During the rotation of the uniform material assembly 241, the connecting sleeve 2412 will squeeze the elastic block 2413 due to centrifugal force. At this time, the elastic block 2413 will deform, and the gas inside the elastic block 2413 will enter the air bladder 2414. Through the above technical solution, a buffering effect is achieved, reducing the radial force of the uniform material assembly 241 on the stirring rod 24 and preventing the stirring rod 24 from bending.

[0041] The working principle of this invention is as follows: Before mixing, the vibration motor is turned on. The vibration motor then controls the screening plate 12 to vibrate horizontally through the double vibration mechanism 15. At the same time, the vibration motor drives the slotted seat 131 to reciprocate up and down through the double vibration mechanism 15. When the crushed pebbles are poured into the screening chamber 111, the qualified crushed pebbles will pass through the screening holes and fall onto the slotted seat 131. The slotted seat 131 performs slotting treatment on the surface of the crushed pebbles to increase the number of edges and corners, thereby enhancing the interlocking force and internal friction between the aggregates in the asphalt. Finally, the slotted crushed pebbles will flow along the first discharge pipe and the feed pipe 25 into the asphalt. After the preparation work is completed, the valve on the feed pipe 25 is closed, and then the mixing motor 22, heating pipe 23 and stirring motor 26 are turned on. The mixing motor 22 drives the mixing tank 21 to rotate, the heating pipe 23 heats the asphalt and performs the subsequent heat preservation process, and the stirring motor 26 drives the stirring rod 24 to rotate to achieve the purpose of mixing. During the mixing process, the uniform material block 2411 can push a part of the asphalt away from the inner wall of the mixing tank 21 to the inner wall of the mixing tank 21 to speed up the mixing and heating speed and ensure that the overall temperature of the asphalt is uniform.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A mixing and preparation device for asphalt mixture with screening function, characterized in that: The mixing and preparation device includes a screening mechanism (1), a stirring mechanism (2), a collecting mechanism (3), and a base (4). The screening mechanism (1), stirring mechanism (2), and collecting mechanism (3) are all horizontally arranged above the base (4). The screening mechanism (1) is located in the middle of the stirring mechanism (2) and the collecting mechanism (3). The screening mechanism (1) includes a screening funnel (11). A partition (14) is provided inside the screening funnel (11). The partition (14) divides the interior of the screening funnel (11) into two areas: a screening chamber (111) and a waste chamber (112). The chamber (111) is connected to the stirring mechanism (2) through the first discharge pipe, and the waste chamber (112) is connected to the collecting mechanism (3) through the second discharge pipe. The screening chamber (111) is equipped with a screening plate (12) and a grooving assembly (13). The screening plate (12) is located above the grooving assembly (13). The partition plate (14) is equipped with a waste channel at one end near the screening plate (12). The upper end of the waste channel is equipped with a collection trough. The collection trough is equipped with an opening plate (141) and a cylinder. The opening plate (141) is controlled to move in the waste channel and the collection trough by the cylinder. The lower end of the waste channel is provided with a double vibration mechanism (15), and the outside of the screening funnel (11) is provided with a vibration motor. The vibration motor controls the screening plate (12) to vibrate horizontally through the double vibration mechanism (15), and the vibration motor controls the grooving assembly (13) to groove the crushed pebbles through the double vibration mechanism (15). The dual-vibration mechanism (15) includes a conversion chamber (151), inside which a cam (1511) and a movable plate (1512) are provided. The cam (1511) is fixedly mounted on the rotating shaft of the vibration motor. The movable plate (1512) is movably mounted inside the conversion chamber (151) via a return spring rod. A vibration groove (142) is provided at one end of the waste channel near the dual-vibration mechanism (15). A vibration block (121) is provided at one end of the screening plate (12) near the vibration groove (142). The vibration block (121) is located inside the vibration groove (142). A transmission fluid is provided on the side of the movable plate (1512) away from the cam (1511). The end of the conversion chamber (151) away from the screening chamber (111) is connected to the vibration groove (142) via a first guide groove. The grooving assembly (13) includes a grooving seat (131), a fixing frame (132), and a support rod (134). One end of the support rod (134) is fixedly installed on the partition plate (14), and the other end of the support rod (134) is fixedly connected to the fixing frame (132). The support rod (134) is provided with a transmission groove and a vibration spring rod (1341). The end of the conversion chamber (151) away from the screening chamber (111) is connected to the transmission groove through a second guide groove. The grooving seat (131) is movably installed in the fixing frame (132) through the vibration spring rod (1341). The grooving seat (131) has an arc-shaped structure and a grooving spike is provided at the end near the screening plate (12).

2. The asphalt mixture mixing and preparation device with screening function according to claim 1, characterized in that: The grooving assembly (13) also includes grooving plates (133), which are provided in two sets. Both sets of grooving plates (133) are provided with grooving spikes. The two sets of grooving plates (133) are movably installed on the left and right ends of the fixed frame (132) through a rotating shaft and an arc-shaped spring rod (1331). At the same time, both sets of grooving plates (133) are connected to the end of the grooving seat (131) away from the screening plate (12) through a connecting rope and a pulley.

3. The asphalt mixture mixing and preparation device with screening function according to claim 2, characterized in that: The stirring mechanism (2) includes a stirring tank (21), a mixing motor (22), a heating tube (23), a stirring rod (24), a feed pipe (25), and a stirring motor (26). An external gear is provided on the outside of the stirring tank (21). The mixing motor (22) drives the stirring tank (21) to rotate through a reduction gear assembly and an external gear. The heating tube (23) is located in the inner wall interlayer of the stirring tank (21). The stirring rod (24) is located in the internal cavity of the stirring tank (21). The stirring motor (26) is located on the outside of the stirring tank (21) and drives the stirring rod (24) to rotate. The feed pipe (25) is located at one end of the stirring tank (21) near the screening mechanism (1). A valve is provided on the feed pipe (25).

4. The asphalt mixture mixing and preparation device with screening function according to claim 3, characterized in that: The stirring rod (24) is provided with a material leveling component (241), which includes a material leveling block (2411), a connecting sleeve (2412), and an elastic block (2413). The connecting sleeve (2412) is fitted onto the stirring rod (24), and the material leveling block (2411) is fixedly installed on the outside of the connecting sleeve (2412). An elastic block (2413) is provided between the connecting sleeve (2412) and the stirring rod (24), and the interior of the elastic block (2413) is filled with gas. A stop block is provided at the end of the connecting sleeve (2412) and the stirring rod (24) that are close to each other.

5. The asphalt mixture mixing and preparation device with screening function according to claim 4, characterized in that: The elastic block (2413) is provided in four groups, and each group of elastic blocks (2413) has an airbag (2414) on both sides.

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