Asphalt mixture stirrer

Abstract

The utility model discloses an asphalt mixture stirrer which comprises a base, upright posts on two sides and a top plate, the two stand columns are connected with the stirring pot through lifting parts; a gear ring is connected to the top plate, a through hole is formed in the top plate corresponding to the interior of the gear ring, and a rotating disc is rotationally connected into the through hole through a bearing; a sun gear is arranged in the center of the gear ring, a vertical driving rod is connected to the center of the sun gear, a driving part is connected to the driving rod, and the bottom end of the driving rod is rotationally connected to the rotating disc; three planetary gears which are annularly and uniformly distributed are meshed between the sun gear and the gear ring, the center of one planetary gear is connected with a stirring shaft which vertically penetrates through the rotating disc, the stirring shaft is rotationally connected with the rotating disc through a bearing, and the bottom of the stirring shaft is connected with a plurality of stirring blades which are spirally distributed. The mixing and stirring device not only can improve the mixing and stirring effect, but also has the advantages of higher equipment operation stability, smaller environmental pollution and more convenience in material taking-out operation.

Description

Technical Field

[0001] This utility model relates to the field of mixing equipment, and in particular to an asphalt mixture mixer. Background Technology

[0002] An asphalt mixture mixer is a mixing device used to prepare asphalt and aggregate mixture samples. It is widely used in laboratories of research, construction and supervision departments in the highway system.

[0003] Traditional asphalt mixers, similar to the twin-screw asphalt mixer disclosed in ZL201821685851.4, use vertical screw assemblies connected to supports on both sides to raise and lower the mixing bowl. A vertical mixing shaft is connected inside the top cover, with two sets of mixing blades at the bottom. After the mixing bowl containing the material is raised, the mixing shaft is rotated to mix the contents. However, this type of mixer is used to mix asphalt and aggregate mixtures with a certain viscosity, and the inner diameter of the mixing bowl is generally 45cm. When using a traditional vertical rotating mixing shaft, to avoid excessive stress and damage to the mixing shaft and blades during mixing, the length of the mixing blades can only be selected to be about 10cm. A mixing shaft with blades of this length cannot fully mix all the material in the mixing bowl during operation, resulting in poor mixing efficiency.

[0004] Therefore, existing asphalt mixture mixers suffer from poor mixing performance. Utility Model Content

[0005] The purpose of this invention is to provide an asphalt mixture mixer. This invention has the advantage of better mixing effect.

[0006] The technical solution of this utility model is as follows: An asphalt mixture mixer includes a base, a top plate above the base, and vertical columns connected to both sides of the bottom surface of the top plate and between the base; a mixing pot with a heating element is arranged between two columns, and lifting parts are connected to both sides of the mixing pot and between the two columns; characterized in that: a gear ring is connected to the top plate at a position directly above the mixing pot, and a through hole is provided on the top plate corresponding to the position inside the gear ring, the diameter of the through hole being smaller than the inner diameter of the gear ring, and a rotating disk is rotatably connected to the through hole through a bearing; a sun gear is arranged at the center of the gear ring, and a vertical drive rod is connected to the center of the sun gear, a drive part fixed to the top plate is connected to the drive rod, and the bottom end of the drive rod is rotatably connected to the rotating disk; three evenly distributed planetary gears are meshed between the sun gear and the gear ring, and a stirring shaft that passes vertically through the rotating disk is connected to the center of one of the planetary gears, the stirring shaft and the rotating disk are rotatably connected through a bearing, and multiple spirally distributed stirring blades are connected to the bottom of the stirring shaft.

[0007] In the aforementioned asphalt mixture mixer, a shell covering the top of the top plate is connected above the top plate.

[0008] In the aforementioned asphalt mixture mixer, the drive unit includes a drive motor fixed on the housing, and the output shaft of the drive motor is connected to the top of the drive rod via a coupling.

[0009] In the aforementioned asphalt mixture mixer, a cylindrical splash guard is connected to the bottom surface of the top plate, and the diameter of the bottom opening of the splash guard is equal to the diameter of the top opening of the mixing pot.

[0010] In the aforementioned asphalt mixture mixer, the lifting unit is a vertically arranged linear module, and a rotating shaft connects the slider in the linear module to the middle of the side of the mixing pot; the linear module is covered with a protective shell, and a vertical waist hole is provided on the protective shell at the position corresponding to the rotating shaft; a horizontally arranged first rotating seat is fixed on both sides of the mixing pot at the position above the rotating shaft, and a first rotating rod is rotatably connected inside the first rotating seat. A first locking block and a first handle for driving the first rotating rod to rotate are connected to the first rotating rod.

[0011] In the aforementioned asphalt mixture mixer, vertically arranged baffles are connected to the top of both sides of the mixing pot, and the baffles on both sides respectively cover the waist holes of the protective shells on both sides.

[0012] In the aforementioned asphalt mixture mixer, a horizontally arranged second rotating seat is connected to the front side of one of the columns on the base. A second rotating rod rotates inside the second rotating seat. A second locking block extending vertically outward and a second handle for driving the second rotating rod are connected to the second rotating rod. A limiting groove that cooperates with the end of the second locking block is provided on the side of the mixing pot near the second rotating rod.

[0013] In the aforementioned asphalt mixture mixer, a material collection trough is placed on the base.

[0014] In the aforementioned asphalt mixture mixer, the heating unit includes an electric heating wire disposed on the inner side of the bottom of the mixing pot.

[0015] Compared with the prior art, this utility model has a through hole at the position directly above the mixing pot on the top plate, and a rotating disk is connected to the through hole through a bearing drilled hole; a vertical drive rod is rotatably connected to the center of the rotating disk, and a sun gear is connected to the drive rod. A gear ring is fixed to the top plate outside the sun gear. Three evenly distributed planetary gears are meshed between the gear ring and the sun gear, and a stirring shaft extending vertically downward from the center of one of the planetary gears is connected to the rotating disk. The stirring shaft and the rotating disk are rotatably connected through a bearing. This allows the sun gear to drive the planetary gears to revolve around the sun gear and rotate on their own axis when the drive unit drives the drive rod to rotate. It also allows the stirring shaft connected to the planetary gears to revolve and rotate relative to the center of the mixing pot, so that the materials in the mixing pot can be well mixed without the need for a long stirring blade.

[0016] In addition, a cover is connected above the top plate of this utility model. The cover can prevent workers from being injured by contacting the internal rotating parts, and at the same time reduce the impact of the external environment on the internal parts, thereby improving the operational stability of the equipment.

[0017] A cylindrical splash guard is connected to the bottom surface of the top plate. The diameter of the bottom opening of the splash guard is equal to the diameter of the top opening of the mixing pot. This allows the bottom of the splash guard to approach the top of the mixing pot when the lifting unit moves the mixing pot upward and the mixing shaft is inserted into the mixing pot. This covers the top opening of the mixing pot, preventing materials from splashing outward during the mixing process and avoiding pollution of the external environment.

[0018] The lifting unit is a vertical linear module, ensuring good operational stability. A protective shell surrounds the linear module to prevent environmental impurities from affecting its operation. Rotating shafts connect the sliders on both sides of the mixing pot and the linear modules, allowing the mixing pot to rotate relative to the linear modules. Simultaneously, horizontal rotating seats are connected above the rotating shafts on both sides of the mixing pot, with a rotating rod equipped with a handle connected to it. The user can rotate the rotating rod using the handle to adjust the engagement of a locking block on the rod with the front of the protective shell. When the locking block is engaged with the front of the protective shell, the mixing pot cannot rotate relative to the linear modules, ensuring stability during mixing. When the locking block is moved away from the front of the protective shell, the mixing pot can rotate relative to the linear modules, facilitating the removal of materials from the mixing pot.

[0019] Both sides of the mixing pot are connected to vertical baffles that cover the side openings. This prevents materials from splashing into the protective shell through the gap between the splash guard and the top of the mixing pot during mixing, ensuring that the linear module is not easily affected and has high operational stability.

[0020] The front of one of the columns on the base is connected to a horizontally set No. 2 rotating seat. A No. 2 rotating rod with a No. 2 handle is rotatably connected inside the No. 2 rotating seat. The user can rotate the No. 2 rotating rod by rotating the No. 2 handle to adjust the position of the No. 2 locking block on the No. 2 rotating rod. When the top opening of the mixing pot is rotated to the horizontal, the locking block on the No. 2 rotating rod can be locked in the limiting groove of the mixing pot by rotating the No. 2 handle, thereby positioning the mixing pot and making it convenient for the staff to scoop out the materials in the mixing pot.

[0021] The base has a material collection trough, which makes it easy to collect and transfer the material scooped out of the mixing pot.

[0022] By installing an electric heating wire on the inner side of the bottom of the mixing pot, it is easier to heat the materials inside the mixing pot.

[0023] Therefore, this invention not only improves the mixing effect, but also has the advantages of high equipment operating stability, low environmental pollution, and convenient material removal operation. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a structural diagram showing the position of the gear ring;

[0026] Figure 3 This is a structural diagram of the protective shell section;

[0027] Figure 4 This is a schematic diagram of the linear module structure;

[0028] Figure 5 This is a schematic diagram of the side structure of the mixing pot;

[0029] Figure 6 This is a structural schematic diagram of the No. 2 rotating seat.

[0030] The markings in the attached diagram are as follows: 1-base, 2-top plate, 3-column, 4-mixing pot, 5-gear ring, 7-rotating disc, 8-sun gear, 9-drive rod, 10-planetary gear, 11-mixing shaft, 12-mixing blade, 13-shell cover, 17-drive motor, 18-splash guard, 19-linear module, 20-rotating shaft, 21-protective shell, 22-waist hole, 23-first rotating seat, 24-first rotating rod, 25-first locking block, 26-first handle, 27-baffle, 28-second rotating seat, 29-second rotating rod, 30-second locking block, 31-second handle, 32-limiting groove, 33-collection trough. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0032] Example. An asphalt mixture mixer, configured as follows: Figures 1 to 6 As shown, the system includes a base 1, a top plate 2 on top of the base 1, and vertical columns 3 connected to both sides of the bottom surface of the top plate 2 and the base 1. A stirring pot 4 with a heating element is positioned between two columns 3, and lifting elements are connected to both sides of the stirring pot 4 and between the two columns 3. A gear ring 5 is connected to the top plate 2 at a position directly above the stirring pot 4. A through hole is provided on the top plate 2 corresponding to the inner position of the gear ring 5, the diameter of which is smaller than the inner diameter of the gear ring 5. A rotating disk 7 is rotatably connected to the through hole via a bearing. The center of the gear ring 5... A sun gear 8 is provided, with a vertical drive rod 9 connected to the center of the sun gear 8. A drive unit fixed on the top plate 2 is connected to the drive rod 9, and the bottom end of the drive rod 9 is rotatably connected to the rotating disk 7. Three annularly distributed planetary gears 10 are meshed between the sun gear 8 and the gear ring 5. The center of one of the planetary gears 10 is connected to a stirring shaft 11 that passes vertically through the rotating disk 7. The stirring shaft 11 is rotatably connected to the rotating disk 7 through a bearing. Multiple spirally distributed stirring blades 12 are connected to the bottom of the stirring shaft 11.

[0033] A shell 13 covering the top of the top plate 2 is connected above the top plate 2; the drive unit includes a drive motor 17 fixed on the shell 13, and the output shaft of the drive motor 17 is connected to the top of the drive rod 9 via a coupling; a cylindrical splash guard 18 is connected to the bottom surface of the top plate 2, and the diameter of the bottom opening of the splash guard 18 is equal to the diameter of the top opening of the mixing pot 4; the lifting unit is a vertically arranged linear module 19, and a rotating shaft 20 is connected between the slider in the linear module 19 and the middle of the side of the mixing pot 4; a protective shell 21 is provided to cover the linear module 19, and a vertical waist hole 22 is provided on the protective shell 21 at the position corresponding to the rotating shaft 20; a horizontally arranged first rotating seat 23 is fixed on both sides of the mixing pot 4 at the position above the rotating shaft 20, and a first rotating rod 24 is rotatably connected inside the first rotating seat 23. A first locking block 25, which is locked on the front side of the protective shell 21, and a first handle 26, which is used to drive the first rotating rod 24 to rotate, are connected to the moving rod 24. Vertical baffles 27 are connected to the top of both sides of the mixing pot 4, and the baffles 27 are respectively set at the waist holes 22 of the protective shells 21 on both sides. A second rotating seat 28 is horizontally set to the front side of one of the columns 3 on the base 1. A second rotating rod 29 rotates inside the second rotating seat 28. A second locking block 30, which extends vertically outward, and a second handle 31, which is used to drive the second rotating rod 29 to rotate, are connected to the second rotating rod 29. A limiting groove 32, which cooperates with the end of the second locking block 30, is provided on the side of the mixing pot 4 near the second rotating rod 29. A material collection trough 33 is placed on the base 1. The heating part includes an electric heating wire set inside the bottom of the mixing pot 4.

[0034] Working principle: In the initial state, the mixing pot 4 is vertically set with the opening facing upward. The mixing pot 4 is located at the bottom of the column 3. The first locking block 25 on the first rotating rod 24 on both sides of the mixing pot 4 is locked on the front side of the protective shell 21.

[0035] In use, the material is placed into the mixing pot 4. Then, the sliders in the vertical linear modules 19 on both sides of the pillars 3 move upward synchronously, moving the mixing pot 4 upward until the bottom end of the mixing shaft 11 is at the bottom of the mixing pot 4. At this time, the bottom end of the cylindrical splash guard 18 on the top plate 2 is close to the top of the mixing pot 4. Next, the electric heating wire is energized to heat the bottom of the mixing pot 4, and the drive motor 17 on the shell 13 is started and drives the drive rod 9 to rotate. After the drive rod 9 rotates, it can drive the sun gear 8 to rotate, and drive the sun gear 8 and the gear... Three evenly distributed annular planetary gears 10 meshing between rings 5 ​​revolve around the sun gear 8 while simultaneously rotating on their own axes. The stirring shaft 11, connected to the planetary gears 10, revolves around the center of the mixing pot 4 while also rotating on its own axis. This allows the material within the entire mixing pot 4 to be stirred using relatively short stirring blades 12 (by positioning the stirring shaft 11 at the center of the radius of the mixing pot 4 and ensuring the stirring blades 12 adhere to the inner wall of the mixing pot 4, the material within the entire mixing pot 4 can be stirred effectively). This process heats the material while simultaneously mixing it. A cover 13 is connected above the top plate 2. The cover 13 prevents workers from contacting the internal rotating parts and causing injury, while also reducing the impact of the external environment on the internal components and improving the stability of the equipment operation.

[0036] During the mixing process, because the bottom of the splash guard 18 is close to the top of the mixing pot 4, the material is not easy to splash outwards; even if a small amount of material splashes out from the gap between the splash guard 18 and the top of the mixing pot 4, the baffles 27 on both sides of the top of the mixing pot 4 can prevent the material from entering the protective shell 21 from the waist hole 22, ensuring that the operation of the linear module 19 is not affected.

[0037] After the materials are mixed, the power supply to the electric heating wire is cut off and the drive motor 17 is stopped, causing the stirring shaft 11 to stop moving. Then, the sliders in the linear modules 19 on both sides are controlled to move the mixing pot 4 downwards to the bottom of the column 3. Next, the operator uses the first handle 26 on both sides of the mixing pot 4 to rotate the first rotating rod 24 upwards within the corresponding first rotating seat 23, causing the first locking blocks 25 on the two first rotating rods 24 to rotate and move away from the front of the protective shell 21 (there is a certain damping between the first rotating rod 24 and the first rotating seat 23, making it difficult for the first locking blocks 25 to rotate relative to the protective shell 21 when the mixing pot 4 moves up and down; at the same time, the first handle 26 is L-shaped, allowing the user to easily rotate the first rotating rod 24 using the first handle 26). Then... The operator can use the first handle 26 on both sides to rotate the mixing pot 4 relative to the linear modules 19 on both sides via the rotating shafts 20 on both sides, so that it is horizontal or slightly tilted downwards. Then, holding one of the first handles 26 with one hand, and using the other hand to rotate the second handle 31 upwards, the second rotating rod 29 rotates relative to the second rotating seat 28, and the end of the second locking block 30 on the second rotating rod 29 is locked into the limiting groove 32 on one side of the mixing pot 4, so as to position the mixing pot 4. Finally, the operator releases the first handle 26 and the second handle 31, and uses tools such as a shovel and a spade to scoop the material in the mixing pot 4 into the collection trough 33, so as to realize the material unloading operation. The collection trough 33 is placed on the base 1, and the internal material can be transferred by moving the collection trough 33 later.

Claims

1. An asphalt mixture mixer, comprising a base (1), a top plate (2) above the base (1), and vertical columns (3) connected to both sides of the bottom surface of the top plate (2) and between the base (1); a mixing pot (4) with a heating element is disposed between the two columns (3), and lifting elements are connected to both sides of the mixing pot (4) and between the two columns (3); characterized in that: A gear ring (5) is connected to the top plate (2) at a position directly above the mixing pot (4). A through hole is provided on the top plate (2) at a position corresponding to the inside of the gear ring (5). The diameter of the through hole is smaller than the inner diameter of the gear ring (5). A rotating disk (7) is rotatably connected to the through hole through a bearing. A sun gear (8) is provided at the center of the gear ring (5). A vertical drive rod (9) is connected to the center of the sun gear (8). A drive part fixed on the top plate (2) is connected to the drive rod (9). The bottom end of the drive rod (9) is rotatably connected to the rotating disk (7). Three ring-shaped planetary gears (10) are meshed between the sun gear (8) and the gear ring (5). A stirring shaft (11) that passes vertically through the rotating disk (7) is connected to the center of one of the planetary gears (10). The stirring shaft (11) is rotatably connected to the rotating disk (7) through a bearing. Multiple stirring blades (12) that are spirally distributed are connected to the bottom of the stirring shaft (11).

2. The asphalt mixture mixer according to claim 1, characterized in that: A shell (13) is connected above the top plate (2) to cover the top of the top plate (2).

3. An asphalt mixture mixer according to claim 2, characterized in that: The drive unit includes a drive motor (17) fixed on the housing (13), and the output shaft of the drive motor (17) is connected to the top of the drive rod (9) via a coupling.

4. An asphalt mixture mixer according to claim 1, characterized in that: A cylindrical splash guard (18) is connected to the bottom surface of the top plate (2), and the diameter of the bottom opening of the splash guard (18) is equal to the diameter of the top opening of the mixing pot (4).

5. An asphalt mixture mixer according to claim 1, characterized in that: The lifting unit is a vertically arranged linear module (19), and the slider in the linear module (19) is connected to the middle of the side of the mixing pot (4) by a rotating shaft (20); the linear module (19) is covered with a protective shell (21), and the protective shell (21) has a vertical waist hole (22) at the position corresponding to the rotating shaft (20); the mixing pot (4) is fixed with a horizontally arranged first rotating seat (23) at the position above the rotating shaft (20) on both sides, and a first rotating rod (24) is rotatably connected inside the first rotating seat (23). The first rotating rod (24) is connected with a first locking block (25) locked on the front side of the protective shell (21) and a first handle (26) for driving the first rotating rod (24) to rotate.

6. An asphalt mixture mixer according to claim 5, characterized in that: The top of both sides of the mixing pot (4) are connected to vertically arranged baffles (27), and the baffles (27) on both sides respectively cover the waist holes (22) of the protective shells (21) on both sides.

7. An asphalt mixture mixer according to claim 6, characterized in that: A horizontally arranged second rotating seat (28) is connected to the front side of one of the columns (3) on the base (1). A second rotating rod (29) rotates inside the second rotating seat (28). A second locking block (30) extending vertically outward and a second handle (31) for driving the second rotating rod (29) to rotate are connected to the second rotating rod (29). A limiting groove (32) that cooperates with the end of the second locking block (30) is provided on the side of the stirring pot (4) near the second rotating rod (29).

8. An asphalt mixture mixer according to claim 1, characterized in that: A material collection trough (33) is placed on the base (1).

9. An asphalt mixture mixer according to claim 1, characterized in that: The heating element includes an electric heating wire disposed on the inner side of the bottom of the mixing pot (4).

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