Asphalt mixture heating and stirring device

Abstract

The utility model discloses an asphalt mixture heating and stirring device which comprises a stirring barrel, an outer wrapping shell is fixedly wrapped on the surface of the outer side of the stirring barrel, an electric heating wire is arranged on the surface of the inner side of the outer wrapping shell, a motor is fixedly connected to the upper surface of the stirring barrel, and a spiral blade is fixed to the outer surface of a driving shaft of the motor. Stirring blades are fixedly connected to the outer surfaces of the spiral blades, a positioning disc is fixedly connected to the outer surface of the upper end of a driving shaft of the motor, a notch is formed in the outer surface of the positioning disc, an overturning stirring rod is hinged to the inner side surface of the notch through a hinge shaft, and the outer surface of the hinge shaft of the overturning stirring rod is sleeved with a torsional spring; the discharging mechanism is simple, the bottom of the stirring barrel can be scraped by matching with the stirring blades at the bottom, residues are not easy to remain, the stirring direction range can be adjusted by adopting upper and lower layered stirring and arranging the turnover stirring rod at the upper end, and the uniformity is improved during stirring.

Description

Technical Field

[0001] The utility model relates to the field of asphalt mixture heating and stirring devices, and more specifically, to an asphalt mixture heating and stirring device. Background Art

[0002] Asphalt mixture is a composite material, mainly composed of asphalt, coarse aggregate, fine aggregate, mineral powder, and some also add polymers and wood cellulose; these materials of different quality and quantity are mixed to form different structures and have different mechanical properties. There are two most commonly used asphalt mixtures in engineering: one is asphalt concrete mixture, which is composed of appropriate proportions of coarse aggregate, fine aggregate and filler, which are mineral materials that meet the specified grading. After mixing and compacting with asphalt binder, the remaining void ratio is less than 10%. It is referred to as asphalt concrete, represented by AC, and LH when a round hole sieve is used. The second is asphalt macadam mixture, which is composed of appropriate proportions of coarse aggregate, fine aggregate and filler (or no filler) and asphalt. After mixing and compacting, the remaining void ratio is more than 10%. It is referred to as asphalt macadam mixture, represented by AM, and is widely used in road construction;

[0003] At present, in the production and processing of asphalt mixture, the processed asphalt mixture will be discharged and collected through a discharge pipe. However, when the mixing device for preparing asphalt mixture is used to discharge and collect the processed asphalt mixture, it is easy to produce residual accumulation at the discharge place, causing blockage and reducing the discharge rate. Therefore, we propose an asphalt mixture heating and stirring device;

[0004] In the prior art, such as the authorization announcement number CN210561597U, the utility model discloses an asphalt mixture heating and stirring device, including a bearing platform, a discharge window is provided on the top of the bearing platform, and sealing baffles are symmetrically arranged on the left and right sides of the top of the discharge window, and rack plates are symmetrically fixedly connected to the sides of the two sets of sealing baffles away from each other, and an insulating outer barrel is provided on the top of the sealing baffle, and a heat-conducting inner barrel is provided in the inner cavity of the insulating outer barrel, and an electric heating plate is provided between the heat-conducting inner barrel and the insulating outer barrel, and a guide hopper is fixedly connected to the top of the insulating outer barrel, and the bottom of the inner cavity of the guide hopper is covered with a top plate, and a feeding hopper is symmetrically embedded on the sides of the two sets of support plates away from each other, and guide through holes are symmetrically provided at the connection between the two sets of support plates and the bearing platform, and forward and reverse motors are symmetrically fixedly installed on the left and right sides of the bottom between the two sets of support plates, and transmission gears are fixedly connected to the front shaft ends of the two sets of forward and reverse motors. The utility model has a reasonable structural design, which is convenient for reducing residual accumulation during discharge, reducing the occurrence of blockage, and improving the discharge rate;

[0005] In the prior art, the above patent adopts a baffle structure for telescopic opening and discharging. The baffle structure has poor sealing when in use, and is easy to leak during mixing, heating and stirring. The structure is complex, and the stirring mechanism is single. The stirring position is single during stirring, and the uniformity during stirring is poor. Utility Model Content

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide an asphalt mixture heating and stirring device, which can discharge the material downward by means of spiral blades. The discharge mechanism is simple, and the stirring blades at the bottom can scrape the bottom of the mixing drum, which is not easy to leave residue. It adopts upper and lower layered stirring, and a flip-type flip stirring rod is provided at the upper end, which can adjust the stirring direction range and improve the uniformity performance during stirring.

[0007] To solve the above problems, the utility model adopts the following technical solutions.

[0008] An asphalt mixture heating and stirring device comprises a stirring drum, the outer surface of the stirring drum is fixedly wrapped with an outer shell, the inner surface of the outer shell is provided with an electric heating wire, the upper surface of the stirring drum is fixedly connected with a motor, the outer surface of the driving shaft of the motor is fixed with a spiral blade, the outer surface of the spiral blade is fixedly connected with a stirring blade, the upper end outer surface of the driving shaft of the motor is fixedly connected with a positioning plate, the outer surface of the positioning plate is provided with a notch, the inner surface of the notch is hinged with a flip stirring rod through a hinge shaft, and the hinge of the flip stirring rod A torsion spring is sleeved on the outer surface of the shaft, a universal ball is fixedly connected to the upper end of the flip stirring rod, a cylinder is fixedly connected to the upper surface of the mixing drum, a reducer is fixed to the end face of the propulsion rod of the cylinder, the inner side of the reducer is squeezed on the outer surface of the ball head of the universal ball, and the material is discharged downward by the spiral blade. The discharge mechanism is simple, and the stirring blade at the bottom can scrape the bottom of the mixing drum, which is not easy to leave residue. The upper and lower layers are stirred, and a flip stirring rod is arranged on the upper end, which can adjust the stirring direction range and improve the uniformity performance during stirring.

[0009] Furthermore, a feed bin is provided on the outer surface of the mixing drum, and the feed bin adopts a variable diameter bucket structure.

[0010] Furthermore, a discharge port is arranged at the lower end of the mixing drum, and the spiral blades thereof extend to the inner surface of the discharge port.

[0011] Furthermore, an external thread is provided on the outer surface of the discharge port of the mixing drum, and a threaded plugging cover is connected via the external thread.

[0012] Furthermore, the lower surface of the mixing drum is fixedly connected with support legs, and six groups of support legs are distributed on the lower surface of the mixing drum.

[0013] Furthermore, the three groups of stirring rods are distributed on the inner surface of the positioning plate, one side of the torsion spring is fixed to the inner surface of the positioning plate, and the other side is fixed to the inner surface of the stirring rod.

[0014] Furthermore, the stirring blades are arranged at three points on the outer surface of the spiral blade, and the stirring blades are welded and fixed on the outer surface of the spiral blade.

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] (1) The material can be discharged downward by the spiral blade. The discharge mechanism is simple, and the stirring blade at the bottom can scrape the bottom of the mixing drum, which is not easy to leave residue. The upper and lower layers are stirred, and a flip stirring rod is set at the upper end to adjust the stirring direction range and improve the uniformity during stirring. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a cross-sectional view of the overall structure of the utility model;

[0019] Figure 3 It is a top view of the distribution relationship between the flip stirring rod and the positioning plate of the utility model;

[0020] Figure 4 It is a top view of the distribution of the spiral blades and the stirring blades of the utility model;

[0021] Figure 5 It is an enlarged view of point A of the utility model;

[0022] Figure 6 This is a view of the variable diameter adjustment cylinder of the utility model.

[0023] Description of the numbers in the figure:

[0024] 1 mixing drum, 2 outer shell, 3 electric heating wire, 4 motor, 5 spiral blade, 6 mixing blade, 7 positioning plate, 8 flip stirring rod, 80 torsion spring, 9 universal ball, 10 cylinder, 11 variable diameter adjustment drum, 12 feed bin, 13 threaded plug cover, 14 support leg. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example 1

[0027] See also Figure 1-6 A heating and stirring device for asphalt mixture comprises a stirring drum 1, the outer surface of the stirring drum 1 is fixedly wrapped with an outer shell 2, the inner surface of the outer shell 2 is provided with an electric heating wire 3, the upper surface of the stirring drum 1 is fixedly connected with a motor 4, the outer surface of the driving shaft of the motor 4 is fixed with a spiral blade 5, the outer surface of the spiral blade 5 is fixedly connected with a stirring blade 6, the stirring blade 6 is arranged on the outer surface of the spiral blade 5 at three points above and below, and the stirring blade 6 is welded and fixed to the outer surface of the spiral blade 5, the upper outer surface of the driving shaft of the motor 4 is fixedly connected with a positioning plate 7, the outer surface of the positioning plate 7 is provided with a notch, and the inner surface of the notch is hinged The shaft is hinged with a flip stirring rod 8, and the outer surface of the hinge shaft of the flip stirring rod 8 is sleeved with a torsion spring 80. The upper end of the flip stirring rod 8 is fixedly connected with a universal ball 9, and the upper surface of the mixing drum 1 is fixedly connected with a cylinder 10. The end surface of the propulsion rod of the cylinder 10 is fixed with a variable diameter adjustment cylinder 11, and the inner side of the variable diameter adjustment cylinder 11 is squeezed on the outer surface of the ball head of the universal ball 9; the material can be discharged downward by the spiral blade, and the discharge mechanism is simple, and the stirring blade at the bottom can scrape the bottom of the mixing drum, which is not easy to leave residue, and the upper and lower layers are stirred, and a flip stirring rod is arranged on the upper end, which can adjust the stirring direction range and improve the uniformity performance during stirring;

[0028] A feed bin 12 is provided on the outer surface of the mixing drum 1. The feed bin 12 adopts a variable diameter bucket structure to facilitate feeding.

[0029] A discharge port is arranged at the lower end of the mixing drum 1, and its spiral blade 5 extends to the inner surface of the discharge port, which is convenient for discharging. When the spiral blade 5 rotates downward for conveying, the material can be guided out of the mixing drum 1, which is convenient for discharging. An external thread is arranged on the outer surface of the discharge port of the mixing drum 1, and a threaded plug cover 13 is connected through the external thread, which can be sealed during mixing to prevent leakage.

[0030] The lower surface of the mixing drum 1 is fixedly connected with support legs 14, six groups of support legs 14 are distributed on the lower surface of the mixing drum 1, and three groups of stirring rods 8 are distributed on the inner surface of the positioning plate 7. One side of the torsion spring 9 is fixed to the inner surface of the positioning plate 7, and the other side is fixed to the inner surface of the stirring rod 8, so as to provide stable support;

[0031] When it is used, the material is fed through the feed bin 12, and the mixing drum 1 is heated by the electric heating wire 3 in the outer shell 2. When the material is stirred, it contacts the inner wall of the mixing drum 1 and can be heated. The motor 4 drives the spiral blade 5 to rotate, which can be lifted and rotated upward, and the material can be flipped upward, and the outer mixing blade 6 is driven to rotate. The mixing blade 6 can stir in different directions and can scrape the bottom of the mixing drum 1 without sticking to the bottom, and the stirring is convenient. When stirring at the upper end, the positioning plate 7 is driven by the motor 4 to rotate, which can drive the flip stirring rod 8 to rotate. When rotating, the universal ball 9 contacts the inner side of the variable diameter adjustment cylinder 11, which can support the sliding rotation and reduce friction. When adjusting, the variable diameter adjustment cylinder 11 can be driven to move up and down by the cylinder 10 extending up or down, which can drive the flip stirring rod 8 is flipped, because a torsion spring 80 is arranged at the stirring position of the flip stirring rod 8, the flip stirring rod 8 is twisted inward by the torsion spring 80, and when the variable diameter adjusting cylinder 11 is squeezed downward, the flip stirring rod 8 can be compressed and flipped outward, and when the variable diameter adjusting cylinder 11 rises, the pressure becomes smaller, and the torsion spring 80 can twist the flip stirring rod 8 to shrink and flip inward, and the stirring range can be adjusted, and it can be adjusted synchronously during stirring, which is flexible and convenient to use. A discharge port is arranged at the lower end of the stirring drum 1, and its spiral blade 5 extends to the inner surface of the discharge port for easy discharge, and its motor 4 is driven in reverse rotation to drive the spiral blade 5 to reverse downward, and its spiral blade 5 rotates downward for conveying, and the material can be exported from the stirring drum 1, which is convenient for unloading (the threaded plug cover 13 needs to be twisted and removed when unloading), easy to use, flexible in stirring, and no leakage.

[0032] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. An asphalt mixture heating and stirring device, comprising a stirring drum (1), characterized in that: The outer surface of the mixing drum (1) is fixedly wrapped with an outer shell (2), the inner surface of the outer shell (2) is provided with an electric heating wire (3), the upper surface of the mixing drum (1) is fixedly connected with a motor (4), the outer surface of the drive shaft of the motor (4) is fixedly provided with a spiral blade (5), the outer surface of the spiral blade (5) is fixedly connected with a mixing blade (6), the upper outer surface of the drive shaft of the motor (4) is fixedly connected with a positioning plate (7), the outer surface of the positioning plate (7) A notch is provided, and a flip stirring rod (8) is hingedly connected to the inner surface of the notch via a hinge shaft, and a torsion spring (80) is sleeved on the outer surface of the hinge shaft of the flip stirring rod (8), and a universal ball (9) is fixedly connected to the upper surface of the flip stirring rod (8), and a cylinder (10) is fixedly connected to the upper surface of the stirring drum (1), and a variable diameter adjustment cylinder (11) is fixedly connected to the end surface of the propulsion rod of the cylinder (10), and the inner side of the variable diameter adjustment cylinder (11) is pressed against the outer surface of the ball head of the universal ball (9).

2. The asphalt mixture heating and stirring device according to claim 1, characterized in that: The outer surface of the mixing drum (1) is provided with a feed bin (12), and the feed bin (12) adopts a variable diameter bucket structure.

3. The asphalt mixture heating and stirring device according to claim 1, characterized in that: A discharge port is arranged at the lower end of the mixing drum (1), and the spiral blades (5) extend to the inner surface of the discharge port.

4. The asphalt mixture heating and stirring device according to claim 3 is characterized in that: The outer surface of the mixing drum (1) at the material outlet is provided with an external thread, and a threaded plugging cover (13) is connected via the external thread.

5. The asphalt mixture heating and stirring device according to claim 1, characterized in that: The lower surface of the mixing drum (1) is fixedly connected with support legs (14), and six groups of support legs (14) are distributed on the lower surface of the mixing drum (1).

6. The asphalt mixture heating and stirring device according to claim 1, characterized in that: The three groups of stirring rods (8) are distributed on the inner surface of the positioning plate (7), and one side of the torsion spring (80) is fixed to the inner surface of the positioning plate (7), and the other side is fixed to the inner surface of the stirring rod (8).

7. The asphalt mixture heating and stirring device according to claim 1, characterized in that: The stirring blades (6) are arranged at three points, upper and lower, on the outer surface of the spiral blade (5), and the stirring blades (6) are welded and fixed on the outer surface of the spiral blade (5).

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