Asphalt mixture stirring device for modified asphalt pavement

Abstract

The present invention relates to the technical field of asphalt mixture preparation, and specifically to an asphalt mixture stirring device for modified asphalt pavement, comprising a fixed shell, wherein the upper and lower ends of the fixed shell are respectively provided with a feed port and a discharge port, two left-right symmetrical driving seats are fixedly installed on the rear side of the fixed shell, stirring blades are arranged inside the fixed shell, and a stirring mechanism is arranged on the fixed shell for driving the stirring blades to rotate inside the fixed shell and to move in a front-back direction, and a feeding mechanism is arranged on the fixed shell for uniformly conveying asphalt to the inside of the fixed shell, and the feeding mechanism comprises two feeding pieces arranged on the front surface of the fixed shell in a centrally symmetrical manner. Through the arrangement of the feeding mechanism, when mixing asphalt with aggregate, the asphalt can be intermittently and uniformly conveyed to the inside of the fixed shell, so that the asphalt can be quickly mixed with the aggregate, thereby improving the mixing efficiency between the asphalt and the aggregate.

Description

Technical Field

[0001] The invention relates to the technical field of asphalt mixture preparation, in particular to an asphalt mixture stirring device for modified asphalt pavement. Background Art

[0002] The use of modified asphalt effectively enhances the road's resistance to disease and improves the service level of asphalt pavement. The modified asphalt is mixed with a variety of aggregates after heating to a certain temperature to obtain an asphalt mixture, which is then spread and compacted by special equipment to form a modified asphalt pavement.

[0003] When preparing asphalt mixture, aggregates of different specifications are first transported to the drying drum for drying and heating. The dried aggregates are then screened into different sizes by a screening machine and stored separately. Aggregates of different sizes are then transported to the inside of the mixing device according to weight ratio as needed. Stone powder and modified asphalt are then added in turn, and the raw materials and modified asphalt are mixed evenly by the mixing device.

[0004] Mixing modified asphalt and aggregate in this way will result in insufficient contact between the asphalt and some aggregates that are far away from the asphalt entry point. A long period of stirring is required to achieve sufficient contact between all the aggregates and the asphalt, affecting the preparation efficiency of the asphalt mixture and easily causing uneven mixing. Usually, the stirring blades of the stirring device are in a fixed position during the stirring process and can only provide circumferential stirring force, resulting in some aggregates and asphalt between the two stirring blades not being fully subjected to the stirring force, affecting the preparation efficiency of the asphalt mixture. Summary of the invention

[0005] Therefore, the present invention provides an asphalt mixture stirring device for modified asphalt pavement, which solves the above technical problems.

[0006] The present invention provides an asphalt mixture stirring device for modified asphalt pavement, comprising a fixed shell, wherein the upper and lower ends of the fixed shell are respectively provided with a feed port and a discharge port, two left-right symmetrical drive seats are fixedly installed on the rear side of the fixed shell, stirring blades are arranged inside the fixed shell, a stirring mechanism is arranged on the fixed shell for driving the stirring blades to rotate inside the fixed shell and to move in the front-rear direction, and a feeding mechanism is arranged on the fixed shell for uniformly conveying asphalt to the inside of the fixed shell.

[0007] The feeding mechanism includes two feeding parts distributed up and down arranged on the front surface of the fixed shell, and a conveying pipe is fixedly connected to the two feeding parts. Two driving parts distributed up and down for driving the feeding parts are arranged on the front surface of the fixed shell, and a dispersion shell is fixedly connected to the left and right sides of the fixed shell.

[0008] The feeding part includes a feeding pipe fixedly connected to the front surface of the fixed shell through a mounting seat, a piston is slidably connected to the inside of the feeding pipe along the left and right directions, a connecting pipe is fixed and penetrated on the end surface of the feeding pipe away from the center of the fixed shell, and a section of the connecting pipe away from the feeding pipe is fixed and penetrated to the corresponding dispersion shell.

[0009] According to an embodiment of the present invention, a plurality of evenly distributed through holes are formed on a surface of the dispersion shell close to the fixed shell, and through holes are also formed on the outer surface of the fixed shell at positions corresponding to the through holes on the dispersion shell.

[0010] According to an embodiment of the present invention, a one-way valve for controlling the flow of asphalt from the inside of the feeding pipe to the inside of the dispersion shell is provided on the connecting pipe, and a delivery pipe is fixed to and penetrates the two connecting pipes on the left and right sides, and a one-way valve for controlling the flow of asphalt from the inside of the delivery pipe to the inside of the feeding pipe is provided on the delivery pipe. The one-way valve on the delivery pipe is located between the one-way valve on the connecting pipe and the feeding pipe.

[0011] According to an embodiment of the present invention, the driving member includes a mounting bracket fixedly connected to the front surface of the fixed shell, the mounting bracket is rotatably connected to a linkage shaft distributed along the front-to-back direction, the front end of the linkage shaft is fixedly connected to an incomplete gear, the front surface of the fixed shell is fixedly connected to a mounting groove through a fixed seat, and the interior of the mounting groove is slidably connected to a rack along the left-right direction.

[0012] According to an embodiment of the present invention, the incomplete gear is meshed with its corresponding rack, a connecting spring is commonly provided between the rack and the inner wall of the mounting groove, a limiting groove is provided on the inner wall of the mounting groove, a limiting slider is fixedly connected to the position of the rack corresponding to the limiting groove, and the end of the rack away from the center of the fixed shell is fixedly connected to the corresponding piston.

[0013] According to an embodiment of the present invention, the stirring mechanism comprises two left-right symmetrical adjusting members distributed along the front-back direction and rotatably arranged on the fixed shell, and the front and rear ends of the fixed shell are both provided with pushing members.

[0014] According to an embodiment of the present invention, the adjusting member includes a spline shaft rotatably connected to a fixed shell along a front-to-back direction, an installation sleeve is slidably connected to the outer circumferential surface of the spline shaft along the front-to-back direction, a plurality of staggered stirring blades are evenly distributed on the outer circumferential surface of the installation sleeve, and auxiliary disks are fixedly connected to the front and rear ends of the installation sleeve, and the auxiliary disks are slidably connected to the spline shaft.

[0015] According to an embodiment of the present invention, the pushing member includes two hydraulic telescopic cylinders fixedly connected to the fixed shell in a centrally symmetrical manner, and a linkage frame is fixedly connected to the telescopic ends of the two hydraulic telescopic cylinders. The linkage frame has two left-right symmetrical pushing seats fixedly connected to one side close to the center of the fixed shell.

[0016] According to an embodiment of the present invention, four legs are arranged on the pushing seat, all of which penetrate the fixed shell and are slidably connected to the fixed shell along the front-rear direction, and one end of the leg located inside the fixed shell is rotatably connected to an auxiliary roller.

[0017] According to an embodiment of the present invention, a driving motor is installed on the driving seat via a motor seat, and the driving motor drives the spline shaft to rotate through a gear transmission inside the driving seat, and the rotation directions of the two spline shafts are opposite.

[0018] The technical solution of the present invention is as follows: 1. By setting up the feeding mechanism, the asphalt can be intermittently and evenly transported to the inside of the fixed shell when mixing the asphalt and the aggregate, so that the asphalt can be quickly mixed with the aggregate, thereby improving the mixing efficiency between the asphalt and the aggregate.

[0019] 2. Through the setting of the stirring blades, the stirring blades can be driven to move forward and backward in a regular manner during the mixing of asphalt and aggregate, and an axial thrust is generated on the aggregate and asphalt during the circumferential stirring of the aggregate and asphalt, so that the aggregate and asphalt are subjected to stirring forces in multiple directions, so that the asphalt and aggregate can be mixed more evenly and the mixing efficiency is improved at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of an asphalt mixture stirring device for modified asphalt pavement provided by the present invention.

[0022] Figure 2 It is a three-dimensional structural schematic diagram of the stirring mechanism provided by the present invention.

[0023] Figure 3 It is a three-dimensional structural schematic diagram of the feeding mechanism provided by the present invention.

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the dispersion shell provided by the present invention.

[0025] Figure 5 It is one of the three-dimensional structural schematic diagrams of the feeding member and the driving member provided by the present invention.

[0026] Figure 6 This is the second three-dimensional structural schematic diagram of the feeding member and the driving member provided by the present invention.

[0027] Figure 7 It is a right side sectional view of the rack provided by the present invention cooperating with the mounting slide groove.

[0028] 1. Fixed shell; 2. Driving seat; 3. Stirring mechanism; 4. Stirring blade; 5. Feeding mechanism; 31. Adjusting member; 32. Pushing member; 51. Conveying pipe; 52. Feeding member; 53. Driving member; 54. Dispersion shell; 311. Mounting sleeve; 312. Spline shaft; 313. Auxiliary disk; 321. Pushing seat; 322. Hydraulic telescopic cylinder; 323. Linkage frame; 521. Connecting pipe; 522. Feeding pipe; 523. Piston; 531. Incomplete gear; 532. Linkage shaft; 533. Mounting frame; 534. Rack; 535. Mounting slide. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0030] like Figure 1 As shown, an asphalt mixture stirring device for modified asphalt pavement comprises a fixed shell 1, a heating component for maintaining the temperature of asphalt is arranged inside the fixed shell 1 (not shown in the figure), a feed port and a discharge port are respectively arranged at the upper and lower ends of the fixed shell 1, the feed port is communicated with the discharge port of the upper mixing bin of the stirring device, and the discharge port is communicated with the feed port of the lower insulation silo of the stirring device, two left-right symmetrical driving seats 2 are fixedly installed on the rear side of the fixed shell 1, stirring blades 4 are arranged inside the fixed shell 1, a stirring mechanism 3 for driving the stirring blades 4 to rotate inside the fixed shell 1 and to move in the front-rear direction is arranged on the fixed shell 1, and a feeding mechanism 5 for uniformly conveying asphalt to the inside of the fixed shell 1 is arranged on the fixed shell 1.

[0031] like Figure 1 and Figure 2 As shown, the stirring mechanism 3 includes an adjusting member 31 rotatably arranged on the fixed shell 1 , the number of the adjusting members 31 is two and they are distributed along the front-to-back direction, and a pushing member 32 is arranged at both the front and rear ends of the fixed shell 1 .

[0032] like Figure 1 and Figure 2 As shown, the adjusting member 31 includes a spline shaft 312 rotatably connected to the fixed shell 1 along the front-to-back direction, a mounting sleeve 311 is slidably connected to the outer circumferential surface of the spline shaft 312 along the front-to-back direction, a plurality of staggered stirring blades 4 are evenly distributed on the outer circumferential surface of the mounting sleeve 311, an inclined material shifting plate is installed at one end of the stirring blade 4 away from the mounting sleeve 311, when the stirring blade 4 drives the material shifting plate to rotate, the inclined material shifting plate generates an axial driving force and a circumferential shifting force on the aggregate, the front and rear ends of the mounting sleeve 311 are fixedly connected with auxiliary disks 313, the auxiliary disk 313 is slidably connected to the spline shaft 312, a driving motor is installed on the driving seat 2 through a motor seat, the driving motor drives the spline shaft 312 to rotate through a gear transmission (not shown in the figure) inside the driving seat 2, and the rotation directions of the two spline shafts 312 are opposite.

[0033] During specific use, when preparing the asphalt mixture, first, various types of aggregates that have been weight-proportioned are introduced into the interior of the fixed shell 1 through the feed port on the fixed shell 1. At this time, the driving motor drives the spline shaft 312 to rotate on the fixed shell 1 through the driving seat 2, and the spline shaft 312 drives the mounting sleeve 311 to rotate synchronously. The mounting sleeve 311 begins to mix the various aggregates inside the fixed shell 1 evenly through the stirring blades 4 thereon. The multiple staggered stirring blades 4 generate circumferential stirring force on the aggregates during the rotation of the mounting sleeve 311, and cooperate with the two spline shafts 312 to rotate in the opposite direction to mix the aggregates inside the fixed shell 1.

[0034] like Figure 1 and Figure 2 As shown, the pushing member 32 includes two hydraulic telescopic cylinders 322 fixedly connected to the fixed shell 1 in a centrally symmetrical manner, and a linkage frame 323 is fixedly connected to the telescopic ends of the two hydraulic telescopic cylinders 322. The linkage frame 323 is fixedly connected to one side close to the center of the fixed shell 1 with two left-right symmetrical pushing seats 321.

[0035] like Figure 1 and Figure 2 As shown, four legs are arranged on the pushing seat 321, and the four legs all penetrate the fixed shell 1 and are slidably connected with the fixed shell 1 along the front-back direction. One end of the leg located inside the fixed shell 1 is rotatably connected with an auxiliary roller, and the sliding friction of the leg is changed into rolling friction with the auxiliary plate 313 corresponding to the auxiliary roller.

[0036] During specific use, while the spline shaft 312 drives the installation sleeve 311 to rotate, the hydraulic telescopic cylinders 322 on the front and rear surfaces of the fixed shell 1 cooperate to extend and retract. When the hydraulic telescopic cylinder 322 on the front side extends, the hydraulic telescopic cylinder 322 on the rear side contracts. Conversely, when the front side contracts, the rear side extends. Through the telescopic cooperation, it can be ensured that the legs of the two front and rear distributed push seats 321 can always be pressed against the auxiliary disk 313, so as to avoid the installation sleeve 311 from shaking autonomously in the axial direction without force when the spline shaft 312 drives the installation sleeve 311 to rotate, thereby affecting the normal rotation of the spline shaft 312. The auxiliary rollers on the legs of the push seat 321 can reduce the friction between the legs of the push seat 321 and the auxiliary disk 313, so as to ensure that the spline shaft 312 can normally drive the installation sleeve 311 to rotate.

[0037] like Figure 1 and Figure 2 As shown, the hydraulic telescopic cylinders 322 on the front and rear sides cooperate to extend and retract, and push the two push seats 321 distributed in the front and rear to move in the same direction through the linkage frame 323. The auxiliary plate 313 is used to push the installation sleeve 311 to generate axial displacement during the rotation of the spline shaft 312, thereby driving the stirring blades 4 to generate circumferential stirring force on the aggregate while generating axial driving force on the aggregate, so that the aggregate mixing efficiency is higher.

[0038] like Figure 1 , Figure 3 and Figure 4 As shown, the feeding mechanism 5 includes two feeding members 52 distributed up and down arranged on the front surface of the fixed shell 1, and a conveying pipe 51 is fixedly connected to the two feeding members 52. The front surface of the fixed shell 1 is provided with two driving members 53 distributed up and down for driving the feeding members 52. The left and right side surfaces of the fixed shell 1 are fixedly connected with a dispersion shell 54. A surface of the dispersion shell 54 close to the fixed shell 1 is provided with a plurality of evenly distributed through holes, and through holes are also provided on the outer surface of the fixed shell 1 at the positions corresponding to the through holes on the dispersion shell 54.

[0039] like Figure 3 , Figure 5 and Figure 6 As shown, the driving member 53 includes a mounting frame 533 fixedly connected to the front surface of the fixed shell 1, and a linkage shaft 532 distributed along the front-to-back direction is rotatably connected to the mounting frame 533. The rear end of the piston 523 is fixedly connected to the front end of its corresponding spline shaft 312, and the front end of the linkage shaft 532 is fixedly connected to an incomplete gear 531. The front surface of the fixed shell 1 is fixedly connected to a mounting groove 535 through a fixed seat, and the interior of the mounting groove 535 is slidably connected to a rack 534 along the left-right direction.

[0040] like Figure 3 , Figure 5 , Figure 6 and Figure 7As shown, the incomplete gear 531 is meshed with its corresponding rack 534, a connecting spring is provided between the rack 534 and the inner wall of the mounting slot 535, a limiting slot is provided on the inner wall of the mounting slot 535, and a limiting slider is fixedly connected to the position of the rack 534 corresponding to the limiting slot.

[0041] In specific use, after the aggregate inside the fixed shell 1 is mixed for a certain period of time, the asphalt is transported to the inside of the delivery pipe 51. At the same time, the mounting sleeve 311 drives the linkage shaft 532 to rotate on the mounting frame 533 during the rotation process, and the incomplete gear 531 rotates synchronously with the linkage shaft 532. When the gear part of the incomplete gear 531 rotates to contact the teeth on the rack 534, the incomplete gear 531 drives the rack 534 to slide inside the mounting groove 535 and stretches the connecting spring. As the incomplete gear 531 continues to rotate, when the incomplete gear 53 After the gear portion of 1 rotates to separate from the rack 534, the incomplete gear 531 no longer drives the rack 534 to move, and loses the pulling force on the rack 534. Under the action of the elastic force of the connecting spring itself, the rack 534 is driven to move in the opposite direction to return to its original position. As the incomplete gear 531 continues to rotate, when the gear portion of the incomplete gear 531 rotates again to contact with the rack 534, the incomplete gear 531 drives the rack 534 to move again, thereby cooperating with the elastic force of the connecting spring itself to drive the rack 534 to make reciprocating movements in the left and right directions inside the mounting groove 535.

[0042] like Figure 3 , Figure 5 and Figure 6 As shown, the feeding member 52 includes a feeding tube 522 fixedly connected to the front surface of the fixed shell 1 through a mounting seat, the interior of the feeding tube 522 is slidably connected to a piston 523 along the left-right direction, the end of the rack 534 away from the center of the fixed shell 1 is fixedly connected to the corresponding piston 523, and a connecting tube 521 is fixed and penetrated on the end surface of the feeding tube 522 away from the center of the fixed shell 1, and a section of the connecting tube 521 away from the feeding tube 522 is fixed and penetrated to the corresponding dispersion shell 54.

[0043] like Figure 3 , Figure 5 , Figure 6 and Figure 7 As shown, a one-way valve for controlling the flow of asphalt from the inside of the feed pipe 522 to the inside of the dispersion shell 54 is provided on the connecting pipe 521, and a delivery pipe 51 is fixed to and penetrates the left and right connecting pipes 521. A one-way valve for controlling the flow of asphalt from the inside of the delivery pipe 51 to the inside of the feed pipe 522 is provided on the delivery pipe 51. The one-way valve on the delivery pipe 51 is located between the one-way valve on the connecting pipe 521 and the feed pipe 522.

[0044] In specific use, when the rack 534 reciprocates inside the mounting slide groove 535, the mounting slide groove 535 drives the piston 523 to move synchronously inside the feeding pipe 522. When the piston 523 moves toward the inside of the feeding pipe 522, the piston 523 compresses the internal space of the feeding pipe 522 and discharges the air inside the feeding pipe 522 to the outside. At this time, the one-way valve on the delivery pipe 51 is closed, and the one-way valve on the connecting pipe 521 is opened, and the air is discharged from the inside of the connecting pipe 521. When the piston 523 moves toward the outside of the feeding pipe 522, a suction force is generated inside the feeding pipe 522. At this time, the one-way valve on the delivery pipe 51 is opened, and the connecting pipe 521 is opened. The one-way valve on 21 is closed, and the asphalt inside the delivery pipe 51 is sucked into the inside of the feeding pipe 522. As the piston 523 moves toward the inside of the feeding pipe 522 again, the piston 523 now delivers the asphalt inside the feeding pipe 522 to the inside of the dispersion shell 54 through the connecting pipe 521. The piston 523 reciprocates inside the feeding pipe 522 to intermittently deliver the asphalt inside the delivery pipe 51 to the inside of the dispersion shell 54. At the same time, the dispersion shell 54 evenly delivers the asphalt inside the fixed shell 1 through the through holes thereon through the through holes on the fixed shell 1 to the inside of the fixed shell 1 for mixing with the aggregate. The upper and lower feeding pipes 522 alternately deliver asphalt to the inside of the fixed shell 1.

[0045] Asphalt intermittently enters the interior of the fixed shell 1, and as the adjusting member 31 drives the stirring blade 4 to rotate, the aggregate is stirred. After the asphalt enters the interior of the fixed shell 1 and is sprayed on the aggregate, during the intermittent period of asphalt entry, the continuous stirring of the stirring blade 4 can bring the aggregate sprayed with asphalt to a position away from the through hole on the fixed shell 1, and drive the aggregate not sprayed with asphalt to the vicinity of the through hole on the fixed shell 1. In this way, the asphalt can be evenly dispersed on the aggregate during the process of asphalt intermittently entering the interior of the fixed shell 1, and the aggregate and asphalt can be mixed more quickly and evenly in the subsequent process of stirring the asphalt and aggregate.

[0046] After the asphalt and aggregate are mixed, the asphalt mixture is obtained, the rotation of the stirring blade 4 is stopped, the discharge port below the fixed shell 1 is opened, and the asphalt mixture is discharged from the discharge port. When all the asphalt mixture is discharged, the discharge port is closed, and then the above steps are repeated to prepare the next asphalt mixture.

[0047] Working principle: When preparing asphalt mixture, firstly, various types of aggregates with weight proportion are introduced into the interior of the fixed shell 1 through the feed port on the fixed shell 1. At this time, the driving motor drives the adjusting member 31 to rotate on the fixed shell 1 through the driving seat 2. During the process of the adjusting member 31 driving the stirring blade 4 to rotate, the various aggregates are stirred and mixed evenly. At the same time, during the process of the adjusting member 31 driving the stirring blade 4 to rotate circumferentially, the pushing member 32 cooperates with the adjusting member 31 to drive the stirring blade 4 to move in the axial direction, generating various directions of stirring force on the aggregates inside the fixed shell 1. When the aggregates inside the fixed shell 1 are After the materials are mixed for a certain period of time, asphalt is conveyed to the inside of the conveying pipe 51. The driving member 53 cooperates with the feeding member 52 to intermittently convey the asphalt inside the conveying pipe 51 to the inside of the dispersion shell 54, and then the asphalt is evenly conveyed to the inside of the fixed shell 1 through the dispersion shell 54 to mix with the aggregate. After the mixing of the asphalt and the aggregate is completed, an asphalt mixture is obtained, the rotation of the stirring blade 4 is stopped, the discharge port under the fixed shell 1 is opened, and the asphalt mixture is discharged from the discharge port. When all the asphalt mixture is discharged, the discharge port is closed, and then the above steps are repeated to prepare the next asphalt mixture.

[0048] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0049] In addition, the terms "first", "second", "number one", "number two" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "number one", "number two" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0050] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An asphalt mixture stirring device for modified asphalt pavement, comprising a fixed shell, wherein the upper and lower ends of the fixed shell are respectively provided with a feed port and a discharge port, two driving seats are fixedly mounted on the rear side of the fixed shell, and stirring blades are arranged inside the fixed shell, characterized in that: The fixed shell is provided with a stirring mechanism for driving the stirring blades to rotate and reciprocate back and forth, the stirring mechanism includes an adjusting member, and the fixed shell is provided with a feeding mechanism; The feeding mechanism includes two feeding members arranged on the front surface of the fixed shell and distributed up and down, and two driving members arranged on the front surface of the fixed shell and distributed up and down for driving the feeding members, and the left and right sides of the fixed shell are fixedly connected with the dispersion shell; The feeding member comprises a feeding pipe fixedly connected to the front surface of the fixed shell, a piston is slidably connected to the inside of the feeding pipe along the left and right directions, a connecting pipe is fixed and connected through the end surface of the feeding pipe away from the center of the fixed shell, a section of the connecting pipe away from the feeding pipe is fixed and connected through the corresponding dispersion shell, a delivery pipe is fixed and connected through the left and right two connecting pipes, and a one-way valve is provided on the delivery pipe and the connecting pipe; The piston moves back and forth inside the feeding pipe, and cooperates with the one-way valves on the delivery pipe and the connecting pipe to transport the asphalt into the dispersion shell, and the asphalt is sprayed intermittently and evenly inside the fixed shell through the dispersion shell; The driving member includes a mounting frame fixedly connected to the front surface of the fixed shell, the mounting frame is rotatably connected to a linkage shaft distributed in the front-to-back direction, the front end of the linkage shaft is fixedly connected to an incomplete gear, the front surface of the fixed shell is fixedly connected to a mounting slot through a fixing seat, and the interior of the mounting slot is slidably connected to a rack in the left-right direction; The adjusting member includes a spline shaft rotatably connected to a fixed shell along a front-to-back direction, an installation sleeve is slidably connected to the outer circumferential surface of the spline shaft along the front-to-back direction, a plurality of staggered stirring blades are evenly distributed on the outer circumferential surface of the installation sleeve, and auxiliary disks are fixedly connected to the front and rear ends of the installation sleeve, and the auxiliary disk is slidably connected to the spline shaft.

2. The asphalt mixture stirring device for modified asphalt pavement according to claim 1, characterized in that: A plurality of evenly distributed through holes are formed on a surface of the dispersion shell close to the fixed shell, and through holes are also formed on the outer surface of the fixed shell at positions corresponding to the through holes on the dispersion shell.

3. The asphalt mixture stirring device for modified asphalt pavement according to claim 1, characterized in that: The one-way valve on the connecting pipe controls the asphalt to flow from the inside of the feeding pipe to the inside of the dispersion shell, and the one-way valve on the delivery pipe controls the asphalt to flow from the inside of the delivery pipe to the inside of the feeding pipe. The one-way valve on the delivery pipe is located between the one-way valve on the connecting pipe and the feeding pipe.

4. The asphalt mixture stirring device for modified asphalt pavement according to claim 1, characterized in that: The incomplete gear is meshed with its corresponding rack, a connecting spring is commonly provided between the rack and the inner wall of the mounting slot, a limiting slot is provided on the inner wall of the mounting slot, a limiting slider is fixedly connected to the position of the rack corresponding to the limiting slot, and one end of the rack away from the center of the fixed shell is fixedly connected to the corresponding piston.

5. The asphalt mixture stirring device for modified asphalt pavement according to claim 1, characterized in that: Two left-right symmetrical adjusting members are rotatably arranged on the fixed shell along the front-back direction, and the front and rear ends of the fixed shell are both provided with pushing members.

6. The asphalt mixture stirring device for modified asphalt pavement according to claim 5, characterized in that: The pushing member comprises two hydraulic telescopic cylinders fixedly connected to the fixed shell in a centrally symmetrical manner, the telescopic ends of the two hydraulic telescopic cylinders are commonly fixedly connected with a linkage frame, and the linkage frame is fixedly connected with two left-right symmetrical pushing seats on one side close to the center of the fixed shell.

7. The asphalt mixture stirring device for modified asphalt pavement according to claim 6, characterized in that: The pushing seat is provided with four legs, all of which penetrate the fixed shell and are slidably connected with the fixed shell along the front-rear direction, and one end of the leg located inside the fixed shell is rotatably connected with an auxiliary roller.

8. The asphalt mixture stirring device for modified asphalt pavement according to claim 1, characterized in that: A driving motor is installed on the driving seat via a motor seat. The driving motor drives the spline shaft to rotate through the gear transmission inside the driving seat. The rotation directions of the two spline shafts are opposite.

Images