Asphalt concrete mixing equipment

Abstract

The present application relates to the technical field of asphalt concrete processing, and in particular to an asphalt concrete mixing device, comprising: a tank body, a stirring chamber formed therein; a first stirring shaft, rotating on the tank body and provided with a first stirring blade; a driving assembly, disposed on the tank body and connected to the first stirring shaft, for driving the first stirring shaft to rotate; a second stirring shaft, slidingly disposed on the tank body and located on one side of the first stirring shaft, and provided with a second disturbance blade, the second disturbance blade driving the material to surge up and down; a disturbance mechanism, disposed on the tank body, connected to the second stirring shaft, for driving the second stirring shaft to slide. The present application has the effect of reducing bottom accumulation and improving the stirring effect.

Description

Technical Field

[0001] The present application relates to the technical field of asphalt concrete processing, and in particular to an asphalt concrete mixing device. Background Art

[0002] Asphalt concrete is currently the primary pavement material used in modern road construction and maintenance. Its quality and production efficiency are directly linked to the progress and quality of engineering projects. Traditional asphalt concrete mixing equipment typically consists of a tank, agitating blades, and a motor to drive the blades. To mix asphalt concrete, material is added to the tank, and the motor is activated, driving the blades to stir the material.

[0003] However, concrete may be mixed with materials of different particle sizes. During the mixing process, due to the influence of its own gravity, heavier materials will accumulate at the bottom of the tank, resulting in a poor mixing effect. Summary of the Invention

[0004] In order to reduce bottom accumulation and improve mixing effect, the present application provides an asphalt concrete mixing equipment.

[0005] The asphalt concrete mixing equipment provided in this application adopts the following technical solution:

[0006] An asphalt concrete mixing plant, comprising:

[0007] The tank body has a stirring chamber formed therein;

[0008] a first stirring shaft, rotating on the tank body and provided with a first stirring blade;

[0009] a driving assembly, disposed on the tank body and connected to the first stirring shaft, for driving the first stirring shaft to rotate;

[0010] a second stirring shaft, slidably disposed on the tank body and located on one side of the first stirring shaft, and provided with a second disturbance blade, the second disturbance blade driving the material to surge up and down;

[0011] The disturbance mechanism is provided on the tank body and connected to the second stirring shaft, and is used for driving the second stirring shaft to slide.

[0012] By adopting the above technical solution, first, the operator starts the drive assembly, which begins to work and drives the first stirring shaft to rotate within the tank body. The first stirring blade provided on the first stirring shaft rotates accordingly, and begins to initially stir the asphalt concrete material in the tank body. As the first stirring shaft rotates, the material in the tank body begins to be sheared, squeezed and tumbled, achieving basic uniform mixing. At the same time, the disturbance mechanism begins to operate, which drives the second stirring shaft to slide along a certain trajectory within the tank body. During the sliding process, the second disturbance blade provided on the second stirring shaft continuously changes the position and state of the material, and in particular can drive the material to surge up and down, further enhancing the stirring effect. The operator can optimize the stirring process by adjusting the operating parameters of the drive assembly and disturbance mechanism (such as rotational speed, sliding speed, etc.) according to the stirring requirements to ensure that the material achieves the desired uniformity and quality. When the material in the tank body meets the stirring requirements, the operator stops the operation of the drive assembly and disturbance mechanism and shuts down the equipment. At this time, the asphalt concrete material in the tank body has been fully mixed and is ready for the next step of production or processing.

[0013] Through the synergistic effect of the first stirring shaft and the second stirring shaft, the equipment can achieve full and uniform mixing of materials in a shorter time, thereby improving the mixing efficiency; the sliding of the second stirring shaft and the tumbling action of the second disturbance blade enable the materials to be more fully stirred and dispersed in the tank body, thus avoiding the problems of local material accumulation and uneven mixing, and improving the mixing quality; the design of the equipment allows adjustment of the working parameters of the drive components and the disturbance mechanism, so that it can adapt to the mixing requirements of asphalt concrete materials of different types and specifications; the equipment adopts an automated control method, and the operator only needs to use a simple operation interface to start, stop and adjust the parameters of the equipment, reducing the difficulty of operation and labor intensity.

[0014] Optionally, the disturbance mechanism includes:

[0015] a linkage ring, provided on the first stirring shaft and slidably connected to the second stirring shaft;

[0016] The disturbance block is arranged at the bottom of the tank body, forms a wave surface, and abuts against one end of the second stirring shaft to drive the second stirring shaft to slide up and down.

[0017] By adopting the above technical solution, as the first stirring shaft continues to rotate, the linkage ring drives the second stirring shaft to rotate; as the second stirring shaft rotates, when one end of the second stirring shaft contacts the wave surface of the disturbance block, due to the irregular shape of the wave surface, the second stirring shaft will be subjected to an upward or downward force, and thus begin to slide up and down; as the first stirring shaft continues to rotate, the linkage ring continuously changes its relative position with the second stirring shaft, causing the second stirring shaft to continuously slide up and down under the guidance of the wave surface of the disturbance block; the second disturbance blade on the second stirring shaft continuously changes the position and state of the material during the sliding process, and in particular can drive the material to surge up and down, further enhancing the stirring effect.

[0018] Optionally, the disturbance mechanism further includes:

[0019] A fixed rod is rotatably connected to the linkage ring, and the second stirring shaft is slidably connected to the fixed rod;

[0020] The rotating assembly is connected to the fixing rod and is used to drive the fixing rod to rotate.

[0021] By adopting the above technical solution, the first stirring shaft drives the fixed rod to rotate around the first stirring shaft through the linkage ring during the rotation process, and the fixed rod drives the second stirring shaft to rotate, so that the second stirring shaft abuts against the wave surface of the disturbance block, and the second stirring shaft and the fixed rod slide relative to each other; the rotating assembly drives the fixed rod and the second stirring shaft to rotate, increasing the disturbance to the asphalt concrete, and at the same time accelerating the rate and efficiency of the bottom material surging upward, so that the mixing of the asphalt concrete is more uniform and sufficient, and the mixing effect is improved.

[0022] Optionally, a return spring is provided on the fixing rod, and the return spring is connected to the second stirring shaft and is used to push the second stirring shaft to approach the disturbance block.

[0023] By adopting the above technical solution and setting the reset spring, the second stirring shaft is always in contact with the disturbance block, so that the up and down disturbance effect of the second stirring shaft is maintained, thereby improving the stirring of the asphalt concrete.

[0024] Optionally, the rotating assembly includes:

[0025] A fixed gear ring is provided on the top wall of the tank body;

[0026] a first transmission gear meshing with the fixed ring gear, being rotatably connected to the first agitator shaft and rotating along with the first agitator shaft;

[0027] a second transmission gear, coaxially connected to the first transmission gear;

[0028] The third transmission gear is connected to the fixing rod and is in transmission connection with the second transmission gear via a transmission member.

[0029] By adopting the above technical solution, when the first stirring shaft drives the first transmission gear to rotate, the first transmission gear rotates along the fixed ring gear, the first transmission gear drives the second transmission gear to rotate on its own, the second transmission gear drives the third transmission gear to rotate through the transmission member, the third transmission gear drives the fixed rod to rotate, and the fixed rod drives the second stirring shaft to rotate on its own, thereby increasing the disturbance to the asphalt concrete and improving the stirring effect.

[0030] Optionally, a right-angle portion is provided on the wave surface, so that the second stirring shaft suddenly drops after rising.

[0031] By adopting the above technical solution, the right-angle part is set, so that the second stirring shaft suddenly loses support when sliding in the vertical direction. In conjunction with the return spring, the second stirring shaft vibrates back and forth, increasing the turbulence of the material, further improving the stirring effect, and making the asphalt concrete mixing more uniform.

[0032] Optionally, the second disturbance blade is a spiral blade, and lifts the material as it rotates.

[0033] By adopting the above technical solution and setting the spiral blades, the disturbance blades can lift the material during the rotation process, so that the bottom material rises quickly and the mixing effect is enhanced.

[0034] Optionally, the cross-sectional area of ​​the second disturbance blade at one end close to the bottom wall of the tank body is larger than the cross-sectional area of ​​the second disturbance blade at one end close to the drive assembly.

[0035] By adopting the above technical solution, the disturbance blades are arranged to be larger at the bottom and smaller at the top, thereby increasing the disturbance to the bottom material and causing the bottom material to rise over a large range, thereby achieving rapid mixing of the materials.

[0036] Optionally, a guide portion is provided at the bottom of the tank body, and the guide portion is conical and extends to the disturbance block.

[0037] By adopting the above technical solution and setting the guide part, the material is moved closer to the disturbance blade, reducing the accumulation of the middle material, facilitating the disturbance blade to disturb the bottom material in the whole range, and maintaining the mixing effect.

[0038] Optionally, a third stirring shaft is slidably connected to the first stirring shaft, and the first stirring blade is arranged on the third stirring shaft; a reciprocating component is arranged on the third stirring shaft, and the reciprocating component includes:

[0039] a reciprocating screw, disposed on the guide portion;

[0040] The sliding sleeve slides on the guide portion, and one end of the sliding sleeve is threadedly connected to the reciprocating screw, and the other end is fixedly connected to the third stirring shaft.

[0041] By adopting the above technical solution, when the first stirring shaft rotates, the first stirring shaft drives the sliding sleeve to rotate, and the sliding sleeve slides back and forth through the reciprocating screw, so that the third stirring shaft slides back and forth up and down, and cooperates with the reverse sliding of the second stirring shaft to increase the collision between the materials, thereby enhancing the disturbance in the tank body and improving the mixing effect.

[0042] In summary, this application includes at least one of the following beneficial technical effects:

[0043] 1. Through the synergistic action of the first and second agitator shafts, the equipment can achieve thorough and uniform mixing of materials in a relatively short period of time, improving mixing efficiency. The sliding of the second agitator shaft and the tumbling action of the second disturbance blade ensure more thorough mixing and dispersion of materials within the tank, avoiding localized material accumulation and uneven mixing, and improving mixing quality. The equipment's design allows for adjustment of the operating parameters of the drive components and disturbance mechanism, thus adapting to the mixing requirements of different types and specifications of asphalt concrete materials. The equipment utilizes automated control, allowing operators to start, stop, and adjust parameters through a simple user interface, reducing operational difficulty and labor intensity.

[0044] 2. As the first agitator shaft rotates, the fixed rod, through the linkage ring, drives the second agitator shaft to rotate around it. This causes the second agitator shaft to abut against the wave surface of the disturbance block, and allows the second agitator shaft and the fixed rod to slide relative to each other. The rotating assembly drives the fixed rod and the second agitator shaft to rotate, increasing the disturbance of the asphalt concrete and accelerating the rate and efficiency of the upward surge of the bottom material, making the asphalt concrete more evenly and fully mixed and improving the mixing effect.

[0045] 3. The right-angled portion prevents the second agitator shaft from suddenly losing support when sliding vertically. This, combined with the return spring, causes the second agitator shaft to vibrate back and forth, increasing the turbulence of the material and further improving the mixing effect, resulting in a more uniform mixing of the asphalt concrete.

[0046] 4. When the first stirring shaft rotates, the sliding sleeve is driven to rotate. The sliding sleeve slides back and forth through the reciprocating screw, causing the third stirring shaft to slide up and down reciprocatingly. Cooperating with the reverse sliding of the second stirring shaft, the collision between the materials is increased, the disturbance in the tank is enhanced, and the mixing effect is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 is a cross-sectional view of a stirring device in an embodiment of the present application;

[0048] Figure 2 yes Figure 1 A magnified view of middle A;

[0049] Figure 3 yes Figure 1 Enlarged view of middle B;

[0050] Figure 4 yes Figure 1 Enlarged view of C in the middle.

[0051] Figure numerals: 100, tank body; 110, stirring chamber; 200, first stirring shaft; 210, second sliding groove; 300, first stirring blade; 400, second stirring shaft; 500, driving assembly; 600, second disturbance blade; 700, disturbance mechanism; 710, linkage ring; 720, disturbance block; 721, wave surface; 730, fixed rod; 731, first sliding groove; 740, rotating assembly; 741, fixed ring gear; 742, first transmission gear; 743, second transmission gear; 744, third transmission gear; 745, transmission member; 750, return spring; 760, guide part; 770, third stirring shaft; 780, reciprocating assembly; 781, reciprocating screw; 782, sliding sleeve; 790, connecting rod. DETAILED DESCRIPTION

[0052] The following combination Figures 1 to 4 This application is described in further detail.

[0053] This embodiment discloses an asphalt concrete mixing device.

[0054] Reference Figures 1 to 4 The asphalt concrete mixing equipment includes: a tank body 100 set on the ground, a first stirring shaft 200 rotatably set on the tank body 100, a driving assembly 500 set on the tank body 100 and connected to the first stirring shaft 200, a first stirring blade 300 set on the first stirring shaft 200, a second stirring shaft 400 slidably set on the tank body 100 and connected to the first stirring shaft 200, a disturbance mechanism 700 set on the tank body 100 for driving the second stirring shaft 400 to slide, and a second disturbance blade 600 set on the second stirring shaft 400. When mixing asphalt concrete, raw materials are placed in the tank body 100, and then the driving assembly 500 is used to drive the first stirring shaft 200 to rotate. The first stirring shaft 200 drives the first stirring blade 300 to rotate and at the same time drives the second stirring shaft 400 to revolve around the center of the tank body 100. The disturbance mechanism 700 drives the second stirring shaft 400 to move up and down to disturb the raw materials.

[0055] A stirring chamber 110 is formed in the tank body 100, and a feeding pipe is fixedly connected to the upper top wall of the tank body 100, and the feeding pipe is communicated with the stirring chamber 110. A discharge pipe is fixedly connected to the lower bottom wall of the tank body 100, and a switch valve is fixedly connected to the discharge pipe, and the discharge pipe is communicated with the stirring chamber 110; the first stirring shaft 200 is located on the central axis of the tank body 100, and the first stirring shaft 200 extends into the tank body 100, and the first stirring blade 300 is fixedly connected to the first stirring shaft 200; the driving assembly 500 includes a driving motor fixedly connected to the upper top wall of the tank body 100, and the driving motor is connected to the first stirring shaft 200; the driving motor is started, and the driving motor drives the first stirring shaft 200 to rotate, and the first stirring shaft 200 drives the first stirring blade 300 to stir and mix the raw materials in the stirring chamber 110.

[0056] The disturbance mechanism 700 includes a disturbance block 720 fixedly connected to the bottom wall of the tank body 100, a wave surface 721 is formed on the disturbance block 720, and a right angle portion is opened at the valley peak away from the top wall of the tank body 100, directly extending to the lowest point of the disturbance block 720; a plurality of connecting rods 790 are fixedly connected to the first stirring shaft 200, and a linkage ring 710 is fixedly connected to the end of the connecting rod 790 away from the first stirring shaft 200, and a fixed rod 730 is rotatably connected to the linkage ring 710. The fixed rod 730 0 is provided with a first sliding groove 731, one end of the second stirring shaft 400 is inserted into the first sliding groove 731 and slides along the first sliding groove 731, and the end of the second stirring shaft 400 away from the fixed rod 730 abuts against the wave surface 721 of the disturbance block 720; the second disturbance blade 600 is fixedly connected to the second stirring shaft 400, and the second disturbance blade 600 is a spiral blade, and the cross-sectional area of ​​the end of the second disturbance blade 600 close to the bottom wall of the tank body 100 is larger than the cross-sectional area of ​​the end close to the drive motor.

[0057] In order to facilitate the second stirring shaft 400 to always abut against the wave surface 721, a return spring 750 is fixedly connected in the first sliding groove 731. The return spring 750 is fixedly connected to one end of the second stirring shaft 400 located in the first sliding groove 731, and pushes the second stirring shaft 400 close to the bottom wall of the tank body 100.

[0058] A rotating assembly 740 is provided on the connecting rod 790. The rotating assembly 740 includes a fixed gear ring 741 fixedly connected to the top wall of the tank body 100. The fixed gear ring 741 is located in the stirring chamber 110. A first transmission gear 742 is rotatably connected to the connecting rod 790. The first transmission gear 742 revolves along the first stirring shaft 200 through the connecting rod 790. The first transmission gear 742 is meshed with the fixed gear ring 741. Driven by the connecting rod 790, the first transmission gear 742 is driven to rotate along the fixed gear ring 741. A second transmission gear 743 is rotatably connected to the rod 790, and the second transmission gear 743 is coaxially fixedly connected to the first transmission gear 742; a third transmission gear 744 is rotatably connected to the linkage ring 710, and the third transmission gear 744 is coaxially fixedly connected to the fixed rod 730; a transmission member 745 is provided on the connecting rod 790, and the third transmission gear 744 is transmission-connected to the second transmission gear 743 through the transmission member 745; the transmission member 745 can be a transmission structure such as a synchronous belt, a chain, or a belt, and a synchronous belt is preferably used in this embodiment.

[0059] The bottom wall of the tank body 100 is fixedly connected with a guide portion 760, which is conical and extends to the disturbance block 720 and is transitionally connected to the disturbance block 720; the first stirring shaft 200 is provided with a second sliding groove 210 at the end away from the drive motor, and a third stirring shaft 770 is slidingly connected in the second sliding groove 210, and the first stirring blade 300 is connected to the third stirring shaft 770; the third stirring shaft 770 extends to the middle of the guide portion 760, and a reciprocating component 780 is provided on the third stirring shaft 770, and the reciprocating component 780 includes a fixed connection At the sliding sleeve 782 at the end of the third stirring shaft 770 away from the second stirring shaft 400, the sliding sleeve 782 is slidingly connected to the tip of the guide part 760; the tip of the guide part 760 is fixedly connected to a reciprocating screw 781, and the reciprocating screw 781 is threadedly connected to the sliding sleeve 782. As the first stirring shaft 200 rotates, the third stirring shaft 770 rotates, and the third stirring shaft 770 drives the sliding sleeve 782 to rotate. The sliding sleeve 782 rotates and slides along the reciprocating screw 781, so that the third stirring shaft 770 drives the first stirring blade 300 to disturb up and down.

[0060] The implementation principle of an asphalt concrete mixing device in an embodiment of the present application is as follows: the asphalt concrete mixing device is in a stationary state, and the mixing chamber 110 in the tank body 100 is empty or contains raw materials to be mixed; the first mixing shaft 200, the second mixing shaft 400 and the third mixing shaft 770 are all in the initial position; the return spring 750 remains in a compressed state, pushing the second mixing shaft 400 close to the bottom wall of the tank body 100, and the reciprocating screw 781 and the sliding sleeve 782 are in an initial threaded connection state; when the drive motor is started, it starts to drive the first mixing shaft 200 to rotate, and the first mixing blade 300 on the first mixing shaft 200 rotates accordingly, and starts to mix the raw materials in the mixing chamber 110; while the first mixing shaft 200 rotates, due to the meshing action of the connecting rod 790 and the fixed gear ring 741, it also drives the first transmission gear 742 revolves along the fixed gear ring 741; the first transmission gear 742 drives the second transmission gear 743 to rotate, the second transmission gear 743 drives the third transmission gear 744 to rotate through the synchronous belt, the third transmission gear 744 drives the fixed rod 730 to rotate, the fixed rod 730 drives the second stirring shaft 400 to rotate, and the second stirring shaft 400 revolves along the connection, so that the second stirring shaft 400 slides up and down along the wave surface 721, and the wave surface 721 generates an up and down disturbing force on the second stirring shaft 400. When the second stirring shaft 400 moves to the right angle part, the return spring 750 drives the second stirring shaft 400 to quickly approach the disturbance block 720, thereby increasing the disturbance to the raw material; the second disturbance blade 600 (spiral blade) on the second stirring shaft 400 moves up and down and rotates with the second stirring shaft 400, further disturbing and mixing the raw material.

[0061] As the first stirring shaft 200 rotates, the third stirring shaft 770 is driven to rotate. The third stirring shaft 770 is slidingly connected to the tip of the guide portion 760 through the sliding sleeve 782 and rotates together with the first stirring shaft 200. Due to the threaded connection between the sliding sleeve 782 and the reciprocating screw 781, when the third stirring shaft 770 rotates, the sliding sleeve 782 will rotate and slide along the reciprocating screw 781. This sliding motion causes the third stirring shaft 770 (and the first stirring blade 300 thereon) to perform an up and down reciprocating disturbance in the stirring chamber 110, further enhancing the stirring effect.

[0062] When the mixing is completed, the drive motor is turned off; the switch valve on the discharge pipe is opened, and the mixed asphalt concrete flows out through the discharge pipe.

[0063] After each use, the mixing chamber and mixing shaft need to be cleaned to remove residual asphalt concrete; regularly check the wear of each component and perform necessary maintenance and replacement.

[0064] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An asphalt concrete mixing plant, characterized by: include: A tank body (100) having a stirring chamber (110) formed therein; a first stirring shaft (200) rotating on the tank body (100) and provided with a first stirring blade (300); a driving assembly (500), disposed on the tank body (100), connected to the first stirring shaft (200), and used to drive the first stirring shaft (200) to rotate; A second stirring shaft (400) is slidably disposed on the tank body (100) and is located on one side of the first stirring shaft (200), and is provided with a second disturbance blade (600), the second disturbance blade (600) driving the material to surge up and down; a disturbance mechanism (700), disposed on the tank body (100), connected to the second stirring shaft (400), and used to drive the second stirring shaft (400) to slide; The disturbance mechanism (700) comprises: A linkage ring (710) is provided on the first stirring shaft (200) and is slidably connected to the second stirring shaft (400); a disturbance block (720), disposed at the bottom of the tank body (100), formed with a wave surface (721), and abutting against one end of the second stirring shaft (400), for driving the second stirring shaft (400) to slide up and down; A right-angle portion is provided on the wave surface (721), so that the second stirring shaft (400) suddenly drops after rising; The second disturbance blade (600) is a spiral blade, and lifts the material as it rotates; The cross-sectional area of ​​the second disturbance blade (600) at one end close to the bottom wall of the tank body (100) is larger than the cross-sectional area of ​​the end close to the drive assembly (500); The disturbance mechanism (700) further includes: A fixed rod (730) is rotatably connected to the linkage ring (710), and the second stirring shaft (400) is slidably connected to the fixed rod (730); The rotating assembly (740) is connected to the fixing rod (730) and is used to drive the fixing rod (730) to rotate.

2. The asphalt concrete mixing plant according to claim 1, characterized in that: A return spring (750) is provided on the fixing rod (730), and the return spring (750) is connected to the second stirring shaft (400) and is used to push the second stirring shaft (400) close to the disturbance block (720).

3. The asphalt concrete mixing plant according to claim 1, characterized in that: The rotating assembly (740) comprises: a fixed gear ring (741) disposed on the top wall of the tank body (100); a first transmission gear (742) meshing with the fixed gear ring (741) and rotating along with the first stirring shaft (200); A second transmission gear (743) is coaxially connected to the first transmission gear (742); The third transmission gear (744) is connected to the fixing rod (730) and is in transmission connection with the second transmission gear (743) via a transmission member (745).

4. The asphalt concrete mixing plant according to claim 1, characterized in that: A flow guide portion (760) is provided at the bottom of the tank body (100); the flow guide portion (760) is conical and extends to the disturbance block (720).

5. The asphalt concrete mixing plant according to claim 4, characterized in that: A third stirring shaft (770) is slidably connected to the first stirring shaft (200), and the first stirring blade (300) is arranged on the third stirring shaft (770); The third stirring shaft (770) is provided with a reciprocating assembly (780), and the reciprocating assembly (780) comprises: A reciprocating screw (781) is provided on the guide portion (760); The sliding sleeve (782) slides on the guide portion (760), and one end of the sliding sleeve is threadedly connected to the reciprocating screw (781), and the other end is fixedly connected to the third stirring shaft (770).

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