An adjustable constant temperature holding tank for asphalt concrete

Abstract

This utility model discloses an adjustable constant temperature holding tank for asphalt concrete, including an outer tank body and an inner tank body inside the outer tank body. A sealing cap is provided at the top of the outer tank body. Ventilation holes are evenly distributed around the inside of the inner tank body, and air exchange holes are also provided inside the inner tank body. A rotating outer box is rotatably connected to the bottom end of the sealing cap. Connecting rods are symmetrically arranged at the bottom end of the rotating outer box body, and rotating wheels are rotatably connected to the bottom ends of the connecting rods. A stirring shaft is fixedly installed at the bottom end of the rotating wheel. This utility model uses a rotating motor to achieve a mixing method combining the revolution and rotation of the stirring shaft. The revolution expands the mixing range and avoids local sedimentation, while the rotation enhances the mixing effect and prevents material stratification. Gear meshing transmission ensures stable movement. This method maintains the uniformity of asphalt concrete without complex operation, solves the quality fluctuation problem caused by long-term static storage, ensures the quality stability of subsequent use, and improves the practicality and reliability of the constant temperature holding tank.

Description

Technical Field

[0001] This utility model relates to the field of asphalt concrete technology, specifically an adjustable constant temperature holding tank for asphalt concrete. Background Technology

[0002] Asphalt is a dark brown, complex mixture composed of hydrocarbons of varying molecular weights and their non-metallic derivatives. It is a high-viscosity organic liquid, liquid in nature, with a black surface, and soluble in carbon disulfide. Asphalt is a waterproof, moisture-proof, and corrosion-resistant organic cementing material. Asphalt can be mainly divided into three types: coal tar pitch, petroleum asphalt, and natural asphalt. Coal tar pitch is a byproduct of coking; petroleum asphalt is the residue after crude oil distillation; and natural asphalt is stored underground, sometimes forming mineral layers or accumulating on the earth's crust. Asphalt is mainly used in industries such as coatings, plastics, and rubber, as well as for road paving.

[0003] According to the adjustable constant temperature holding tank for asphalt concrete disclosed in announcement number CN211571269U, this invention relates to the field of asphalt concrete technology. The invention includes a base, a fixing plate, a fixing frame, and an insulated bucket. The base is connected to the fixing frame via the fixing plate. The fixing frame and the insulated bucket cooperate with each other. The insulated bucket includes an inner cylinder and an outer cylinder, with a cavity between them. An air pump and a heater are installed within the cavity. The air pump and heater are connected, and both ends of the air pump and heater are connected to the inner surface of the inner cylinder. This invention provides a rotatable fixing clamp through the cooperation between the base and the fixing frame, facilitating the loading and unloading of asphalt concrete. By installing a gas heating device inside the insulated bucket, the gas inside the insulated bucket is heated and blown out from the asphalt concrete, thus heating the asphalt concrete.

[0004] The aforementioned device heats the gas inside the insulated container by installing a gas heating device, and then blows the gas out of the asphalt concrete. This process heats the asphalt concrete. However, asphalt settles or separates over a long period of time, leading to a decrease in its uniformity. This makes it difficult to solve the problem of material settling and affects the quality stability of the asphalt concrete during subsequent use. Utility Model Content

[0005] The purpose of this invention is to provide an adjustable constant temperature holding tank for asphalt concrete, which addresses the problem that asphalt settles or separates when it is not used for a long time, resulting in a decrease in its uniformity and making it difficult to solve the problem of material settling, thus affecting the quality stability of asphalt concrete in subsequent use.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an adjustable constant temperature holding tank for asphalt concrete, comprising an outer tank body, an inner tank body disposed inside the outer tank body, a sealing cap disposed at the top of the outer tank body, ventilation holes evenly arranged around the inside of the inner tank body, an air exchange hole disposed inside the inner tank body, a rotating outer box rotatably connected to the bottom end of the sealing cap, connecting rods symmetrically disposed at the bottom end of the rotating outer box, a rotating wheel rotatably connected to the bottom end of the connecting rods, and a stirring shaft fixedly installed at the bottom end of the rotating wheel, a hollow rotating rod rotatably connected to the top end of the sealing cap, and the hollow rotating rod passing through the sealing cap and fixedly installed with the rotating outer box, a rotating motor fixedly installed at the top end of the sealing cap, and pulleys fixedly installed at the top of the rotating shaft at the top end of the rotating motor and the top end of the hollow rotating rod, with a connecting belt disposed in the middle of the two sets of pulleys.

[0007] As a further embodiment of this utility model: a support frame is fixedly installed at the top of the sealing cover and directly above the hollow rotating rod; a connecting rod is fixedly installed at the bottom of the support frame; a fixed gear is fixedly installed inside the rotating outer box at the bottom of the connecting rod; the connecting rod is rotatably connected to the rotating outer box; and a bevel gear is fixedly installed at one end of the connecting rod through the rotating outer box, and the bevel gear is meshed with the fixed gear.

[0008] As a further embodiment of this utility model: a limiting gear is fixedly installed in the middle of the rotating wheel, and a limiting screw is threaded to one end of the connecting rod, and the limiting screw is adapted to the tooth groove of the limiting gear.

[0009] As a further embodiment of this utility model: a fixing frame is rotatably connected to the bottom of the outer tank, and a side plate is fixedly installed on the top of the fixing frame, and the side plates are symmetrically fixedly installed on the top of the fixing frame, and the side plates are rotatably connected to the outer tank.

[0010] As a further embodiment of this utility model: a base is provided directly below the outer tank, and a fixing plate is symmetrically fixedly installed on the top of the base, and the two sets of fixing plates are rotatably connected to the side plate.

[0011] As a further embodiment of this utility model: a discharge pipe is fixedly installed at one end of the outer tank, and the discharge pipe is connected to the inner tank. A one-way valve is provided on the outer periphery of the discharge pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention utilizes a rotating motor to drive a mixing shaft that combines revolution and rotation. Revolution expands the mixing range and prevents localized settling, while rotation enhances the mixing effect and prevents material stratification. Gear meshing ensures stable movement, maintaining the uniformity of asphalt concrete without complex operation. It solves the quality fluctuation problem caused by prolonged static placement, ensures the quality stability of subsequent use, and improves the practicality and reliability of the constant temperature holding tank.

[0014] This invention releases the lock by loosening the limiting screw, allowing the rotating wheel to freely adjust the angle of the mixing shaft. After tightening, the screw is fixed by the threaded fastening force, preventing vibration or resistance from causing angle deviation. It is suitable for asphalt concrete of different viscosities and quantities and inner tank structures, ensuring that the mixing shaft works at the optimal angle, avoiding dead angles, improving mixing uniformity and effectiveness, and enhancing the device's adaptability to diverse working conditions. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a side view of the outer tank of this utility model;

[0017] Figure 3 This is a schematic cross-sectional view of the outer tank and the inner tank in this utility model;

[0018] Figure 4 This is a cross-sectional structural diagram of the sealing cap in this utility model;

[0019] Figure 5 This is a utility model Figure 4 A magnified schematic diagram of the local structure at point A;

[0020] Figure 6 This is a partial structural schematic diagram of the stirring shaft in this utility model.

[0021] In the diagram: 1. Outer tank; 2. Fixing frame; 3. Side plate; 4. Base; 5. Fixing plate; 6. Sealing cover; 7. Inner tank; 8. Vent hole; 9. Air exchange hole; 10. Rotating outer casing; 11. Hollow rotating rod; 12. Rotating motor; 13. Pulley; 14. Connecting belt; 15. Connecting rod; 16. Rotating wheel; 17. Stirring shaft; 18. Support frame; 19. Connecting rod; 20. Fixed gear; 21. Bevel gear; 22. Limiting gear; 23. Limiting screw; 24. Discharge pipe; 25. One-way valve. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.

[0024] Reference Figures 1 to 6 In this embodiment of the present invention, an adjustable constant temperature holding tank for asphalt concrete includes an outer tank body 1, an inner tank body 7 inside the outer tank body 1, a sealing cover 6 at the top of the outer tank body 1, ventilation holes 8 evenly arranged around the inner tank body 7, and air exchange holes 9 inside the inner tank body 7. A rotating outer box 10 is rotatably connected to the bottom of the sealing cover 6, and a connecting rod 15 is symmetrically arranged at the bottom of the rotating outer box 10. A rotating wheel 16 is rotatably connected to the bottom of the connecting rod 15, and a stirring shaft 17 is fixedly installed at the bottom of the rotating wheel 16. A hollow rotating rod 11 is rotatably connected to the top of the sealing cover 6, and the hollow rotating rod 11 passes through the sealing cover 6 and is fixedly installed with the rotating outer box 10. A rotating motor 12 is fixedly installed at the top of the sealing cover 6. A pulley 13 is fixedly installed on the rotating shaft at the top of the rotating motor 12 and the top of the hollow rotating rod 11, and a connecting belt 14 is arranged in the middle of the two sets of pulleys 13.

[0025] The above-mentioned scheme adopts the following structure (including vents, air exchange holes 9, and internal air pumps and heaters) of the outer tank 1 and inner tank 7, which are based on prior art and will not be described in detail here. An air pump and heater (not shown in the diagram) are located in the middle of the outer tank 1 and inner tank 7. The sealing cover 6 is made of stainless steel, the rotating outer casing 10 is made of wear-resistant cast iron, the connecting rod 15 is made of high-strength alloy steel, the rotating wheel 16 is made of engineering plastic with embedded bearings, the stirring shaft 17 is made of chrome-plated steel, and the hollow rotating rod 11 is made of... The components are made of seamless steel pipe, the rotating motor 12 is model Y2-132M-4, the pulley 13 is made of aluminum alloy, the connecting belt 14 is model PD-50 and made of neoprene rubber, the 304 stainless steel sealing cover 6 and the wear-resistant cast iron rotating outer box 10 work together to ensure strong sealing, the alloy connecting rod 15 and the plastic rotating wheel 16 reduce wear, the chrome-plated stirring shaft 17 improves corrosion resistance, the seamless steel pipe hollow rod 11 and the aluminum alloy pulley 13 have efficient transmission, and the rubber connecting belt 14 works with the rotating motor 12 to ensure smooth transmission.

[0026] Reference Figures 1 to 6 A support frame 18 is fixedly installed at the top of the sealing cover 6 and directly above the hollow rotating rod 11. A connecting rod 19 is fixedly installed at the bottom of the support frame 18. The bottom of the connecting rod 19 passes through the rotating outer box 10 and a fixed gear 20 is fixedly installed inside it. The connecting rod 19 is rotatably connected to the rotating outer box 10. One end of the connecting rod 15 passes through the rotating outer box 10 and a bevel gear 21 is fixedly installed thereon. The bevel gear 21 is meshed with the fixed gear 20.

[0027] The above scheme is adopted: the support frame 18 is welded from steel plate, the connecting rod 19 is made of steel, the fixed gear 20 is made of 20CrMnTi carburized and quenched material, and the bevel gear 21 is made of 40Cr surface quenched material. The support frame 18 and the connecting rod 19 are both made of steel and are rigidly connected to ensure the stability of the fixed gear 20. The fixed gear 20 meshes with the bevel gear 21, has high hardness and strong wear resistance. When the connecting rod 19 is rotatably connected to the rotating outer box 10, the fixed gear 20 remains stationary. The rotating outer box 10 drives the bevel gear 21 to revolve around it and rotate on its own axis, so that the stirring shaft 17 forms a compound motion, which improves the stirring efficiency. The overall coordination realizes the power diversion, reduces the load of a single transmission, and extends the service life of the equipment.

[0028] Reference Figures 1 to 6 A limiting gear 22 is fixedly installed in the middle of the rotating wheel 16, and a limiting screw 23 is threaded to one end of the connecting rod 15, and the limiting screw 23 is adapted to the tooth groove of the limiting gear 22.

[0029] The above scheme is adopted: the limiting gear 22 is made of alloy structural steel, and the limiting screw 23 is made of nitrided steel. The limiting gear 22 made of 40CrNiMoA material and the limiting screw 23 made of 38CrMoAlA material have good wear resistance. The limiting screw 23 is threadedly connected to the connecting rod 15, which can make it tightly fit with the tooth groove of the limiting gear 22, effectively limiting the excessive rotation of the rotating wheel 16. The mechanical limiting improves the running stability of the stirring shaft 17. The threaded connection makes it easy to adjust the tightness of the limiting according to the working conditions, enhancing the structural adaptability.

[0030] Reference Figures 1 to 6 The bottom of the outer tank 1 is rotatably connected to a fixed frame 2. The top of the fixed frame 2 is fixedly installed with a side plate 3, and the side plate 3 is symmetrically fixedly installed on the top of the fixed frame 2. The side plate 3 is rotatably connected to the outer tank 1. A base 4 is provided directly below the outer tank 1, and the top of the base 4 is symmetrically fixedly installed with fixed plates 5. The two sets of fixed plates 5 are rotatably connected to the side plates 3.

[0031] The above-mentioned solution includes: the fixing frame 2, the side plate 3, the base 4, and the fixing plate 5, all of which are prior art referenced in the prior art documents and are not described in detail in this application.

[0032] Reference Figures 1 to 6 One end of the outer tank 1 is fixedly installed with a discharge pipe 24, and the discharge pipe 24 is connected to the inner tank 7. A one-way valve 25 is provided on the outer periphery of the discharge pipe 24.

[0033] The above scheme is adopted: the discharge pipe 24 is a flexible hose, and the one-way valve 25 is model DF-50, made of cast iron valve body with nitrile rubber sealing gasket. The flexible hose discharge pipe 24 is connected to the inner tank 7 to ensure smooth material flow. The cast iron one-way valve 25 is installed on the outer periphery of the discharge pipe 24 to prevent material backflow. The nitrile rubber sealing gasket enhances the sealing performance. The two work together to make the material flow in one direction when discharged, avoiding pressure imbalance between the outer tank 1 and the inner tank 7, which affects the stirring effect and improves the stability of discharge.

[0034] The working principle of this utility model is as follows: When the asphalt concrete is left to stand in the constant temperature holding tank for a long time, the rotating motor 12 is started. The output shaft of the rotating motor 12 drives the hollow rotating rod 11 to rotate through the pulley 13 and the connecting belt 14. The rotating outer box 10 fixed at the bottom of the hollow rotating rod 11 rotates synchronously, thereby driving the connecting rod 15 and the stirring shaft 17 at the bottom to revolve around the central axis of the inner tank 7, expanding the stirring range and covering all areas inside the inner tank 7, thus preventing local materials from settling due to lack of stirring. Simultaneously, since the bevel gear 21 at one end of the connecting rod 15 meshes with the fixed gear 20 fixedly installed at the bottom end of the connecting rod 19, and the connecting rod 19 is fixed to the top of the sealing cover 6 by the support frame 18 and remains stationary, when the outer box 10 rotates and drives the connecting rod 15 to revolve, the bevel gear 21 will rotate under the action of the teeth of the fixed gear 20, and then drive the mixing shaft 17 to rotate through the rotating wheel 16. The mixing shaft 17 rotates on its own axis while revolving, which can produce a stronger mixing effect on the asphalt concrete and reduce the mixing of materials. The settling of the asphalt concrete in the inner tank 7 ensures that the asphalt concrete remains uniform and guarantees the quality stability during subsequent use. If it is necessary to adjust the angle of the mixing shaft 17 according to the state of the asphalt concrete or the specific structure of the inner tank 7, the limiting screw 23 can be loosened first to disengage it from the tooth groove of the limiting gear 22, thereby releasing the lock on the rotating wheel 16. At this time, the rotating wheel 16 can rotate freely around the bottom end of the connecting rod 15, thereby driving the mixing shaft 17 to adjust to the required angle. After the angle adjustment is completed, tighten the limiting screw 23 to re-engage it into the corresponding tooth groove of the limiting gear 22. The tightening force of the thread restricts the rotation of the limiting gear 22, thereby fixing the angle between the rotating wheel 16 and the mixing shaft 17. This prevents the angle from shifting due to vibration or material resistance during the mixing process. The angle adjustment and limiting structure can flexibly adapt to different mixing needs, ensuring that the mixing shaft 17 can be mixed at the optimal angle when facing asphalt concrete of different viscosities and amounts, further improving the uniformity and effectiveness of mixing, and avoiding mixing dead angles caused by unsuitable mixing angles.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An adjustable constant temperature holding tank for asphalt concrete, comprising an outer tank body (1), an inner tank body (7) disposed inside the outer tank body (1), a sealing cap (6) disposed at the top of the outer tank body (1), ventilation holes (8) uniformly arranged around the inside of the inner tank body (7), and air exchange holes (9) disposed inside the inner tank body (7), characterized in that, The bottom end of the sealing cover (6) is rotatably connected to a rotating outer box (10). A connecting rod (15) is symmetrically arranged at the bottom end of the rotating outer box (10). A rotating wheel (16) is rotatably connected at the bottom end of the connecting rod (15), and a stirring shaft (17) is fixedly installed at the bottom end of the rotating wheel (16). A hollow rotating rod (11) is rotatably connected to the top end of the sealing cover (6), and the hollow rotating rod (11) passes through the sealing cover (6) and is fixedly installed with the rotating outer box (10). A rotating motor (12) is fixedly installed at the top end of the sealing cover (6). The rotating shaft at the top end of the rotating motor (12) and the top end of the hollow rotating rod (11) are both fixedly installed. There is a pulley (13), and a connecting belt (14) is provided in the middle of the two sets of pulleys (13). A support frame (18) is fixedly installed at the top of the sealing cover (6) and directly above the hollow rotating rod (11). A connecting rod (19) is fixedly installed at the bottom of the support frame (18). The bottom of the connecting rod (19) passes through the rotating outer box (10) and a fixed gear (20) is fixedly installed inside it. The connecting rod (19) is rotatably connected to the rotating outer box (10). One end of the connecting rod (15) passes through the rotating outer box (10) and a bevel gear (21) is fixedly installed. The bevel gear (21) is meshed with the fixed gear (20).

2. The adjustable constant temperature holding tank for asphalt concrete according to claim 1, characterized in that, A limiting gear (22) is fixedly installed in the middle of the rotating wheel (16), and a limiting screw (23) is threaded to one end of the connecting rod (15), and the limiting screw (23) is adapted to the tooth groove of the limiting gear (22).

3. The adjustable constant temperature holding tank for asphalt concrete according to claim 2, characterized in that, The bottom end of the outer tank (1) is rotatably connected to a fixed frame (2), and a side plate (3) is fixedly installed on the top end of the fixed frame (2). The side plate (3) is symmetrically fixedly installed on the top end of the fixed frame (2), and the side plate (3) is rotatably connected to the outer tank (1).

4. The adjustable constant temperature holding tank for asphalt concrete according to claim 3, characterized in that, A base (4) is provided directly below the outer tank (1), and a fixing plate (5) is symmetrically fixedly installed on the top of the base (4). The two sets of fixing plates (5) are rotatably connected to the side plate (3).

5. The adjustable constant temperature holding tank for asphalt concrete according to claim 4, characterized in that, The outer tank (1) is fixedly installed with a discharge pipe (24) at one end, and the discharge pipe (24) is connected to the inner tank (7). A one-way valve (25) is provided on the outer periphery of the discharge pipe (24).

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