Asphalt concrete stirring instrument

Abstract

The utility model provides an asphalt concrete stirring instrument and belongs to the technical field of asphalt preparation. Comprising a stirring tank, the bottom end of the stirring tank is rotatably connected with a rotating shaft, the two sides, located in the stirring tank, of the rotating shaft are fixedly connected with edgings, the outer side of the rotating shaft is sleeved with a clamping sleeve, the outer side of the clamping sleeve is fixedly connected with a plurality of stirring blades used for stirring asphalt concrete, and the top of the rotating shaft is fixedly connected with a threaded block; according to the stirring device, the stirring tank can be opened through the movable cover by arranging the edge strip, the clamping sleeve and the inner thread sleeve, the stirring rod and the scraping plate are disassembled, assembled and replaced by arranging the clamping sleeve on the outer side of the rotating shaft in a sleeving mode, the stirring blades and the scraping plate are convenient to clean, the service life of the device is prolonged, and the stirring device is convenient to use through threaded connection of the threaded block and the inner thread sleeve. And in cooperation with the upper edge strip, the position of the clamping sleeve can be fixed, and the stability of the rotating shaft is improved through cooperation of the clamping base and the hemispherical block.

Description

Technical Field

[0001] This utility model relates to the field of asphalt preparation technology, and in particular to an asphalt concrete mixing instrument. Background Technology

[0002] Asphalt concrete is a building material widely used in road construction, airport runways, parking lots, dam protection and other fields. It has many important functions and advantages. Its preparation requires mixing the raw materials with a mixing instrument to form asphalt concrete.

[0003] Patent CN221496562U discloses an asphalt concrete mixing instrument, including a tank. A cover is fixedly installed on the top of the tank. The top of the cover has symmetrically distributed inlets. A protective shell is fixedly installed at the middle position of the top of the cover. A drive motor is fixedly installed inside the protective shell. The output end of the drive motor extends through the cover into the interior of the tank and is fixedly installed with a central rod. A first extension rod is fixedly installed on the surface of the central rod. A first scraper is fixedly installed at the end of the first extension rod away from the central rod.

[0004] In the above case, the central rod drives the mixing rod and scraper to rotate, mixing the asphalt raw materials inside the device. However, the asphalt raw materials are sticky, and during mixing, they will adhere to and solidify on the mixing rod and scraper. Because the device is a closed structure, it is impossible to clean the adhering substances on the outside of the mixing rod and scraper, which reduces the service life of the device.

[0005] Therefore, this utility model provides an asphalt concrete mixing instrument to meet the requirements. Utility Model Content

[0006] The purpose of this invention is to provide an asphalt concrete mixing instrument to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an asphalt concrete mixing instrument, comprising a mixing tank, a rotating shaft rotatably connected to the bottom end of the mixing tank, side strips fixedly connected to both sides of the rotating shaft inside the mixing tank, a retaining sleeve fitted on the outside of the rotating shaft, a plurality of mixing blades for mixing asphalt concrete fixedly connected to the outside of the retaining sleeve, a threaded block fixedly connected to the top of the rotating shaft, a hemispherical block fixedly connected to the top of the threaded block, an inner threaded sleeve threadedly connected to the outside of the threaded block, the bottom of the inner threaded sleeve being tightly fitted to the top of the retaining sleeve, a movable cover hinged to the top of the mixing tank, a retaining seat fixedly connected to the center of the bottom of the movable cover, the retaining seat being fitted onto the top of the hemispherical block, a one-way pipe and an exhaust pipe fixedly connected to both sides of the top of the mixing tank respectively, a purification box fixedly connected to the outside of the mixing tank above the exhaust pipe, and one end of the exhaust pipe on the outside of the mixing tank penetrating to the bottom of the purification box.

[0008] In a preferred embodiment, the inner ends of the sleeve are shaped to fit the edge strip, and the diameters of the bottom ends of the pivot, threaded block, and hemispherical block are the same.

[0009] In a preferred embodiment, the bottom end of the card holder is provided with a hemispherical groove adapted to the hemispherical block, and the outer side of the bottom end of the card holder is in close contact with the top end of the inner threaded sleeve.

[0010] In a preferred embodiment, scrapers are fixedly connected to both sides of the sleeve, and the other side of each scraper is in close contact with the inside of the mixing tank.

[0011] In a preferred embodiment, a motor is fixedly connected to the bottom of the mixing tank, and its output end is fixedly connected to the bottom of the rotating shaft. A sealing sleeve is fixedly connected to the contact surface between the bottom of the mixing tank and the rotating shaft.

[0012] In a preferred embodiment, the unidirectional tube is U-shaped, and a feeding tube is fixedly connected to the top of the purification box.

[0013] In a preferred embodiment, a number of support legs are fixedly connected to the outer side of the bottom of the mixing tank, and a discharge pipe is fixedly connected to one side of the bottom of the mixing tank, with a valve fixedly connected to its outer side.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This utility model, by setting a side strip, a retaining sleeve, and an inner threaded sleeve, allows the mixing tank to be opened through a movable cover. By fitting a retaining sleeve on the outside of the rotating shaft, the mixing rod and scraper can be disassembled and replaced, making the device easy to clean the mixing blades and scrapers, thus extending the service life of the device. The retaining sleeve can be fixed in position by the screw connection of the threaded block and the inner threaded sleeve in conjunction with the side strip. The stability of the rotating shaft is improved by the cooperation of the retaining seat and the hemispherical block.

[0016] This utility model, by setting up a one-way pipe, an exhaust pipe, and a purification box, allows the device to discharge harmful gases generated during the mixing of asphalt raw materials inside the device into the purification box through the exhaust pipe. The harmful gases are then purified by the purification liquid inside the purification box, preventing the harmful gases from being directly discharged and affecting the environment. Furthermore, the U-shaped design at the bottom of the one-way pipe allows water to be injected at its bottom to form a water seal effect, enabling the device to add water during the mixing process, facilitating mixing, and ensuring the device's airtightness. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of an asphalt concrete mixing instrument.

[0018] Figure 2 This is a cross-sectional three-dimensional structural diagram of the mixing tank;

[0019] Figure 3 This is a cross-sectional three-dimensional structural diagram of the card sleeve;

[0020] Figure 4 for Figure 3 Enlarged diagram of point A.

[0021] In the diagram: 1. Mixing tank; 2. Rotating shaft; 3. Side strip; 4. Compression sleeve; 5. Mixing blade; 6. Scraper; 7. Threaded block; 8. Hemispherical block; 9. Internal threaded sleeve; 10. Movable cover; 11. Seat; 12. One-way pipe; 13. Exhaust pipe; 14. Purification box; 15. Discharge pipe. Detailed Implementation

[0022] The present invention will be further described below with reference to the embodiments.

[0023] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention; the conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the concept of the present invention are all within the scope of protection claimed by the present invention.

[0024] Please see Figures 1-4This utility model provides an asphalt concrete mixing instrument, including a mixing tank 1. A rotating shaft 2 is rotatably connected to the bottom of the mixing tank 1. Side strips 3 are fixedly connected to both sides of the rotating shaft 2 inside the mixing tank 1. A retaining sleeve 4 is fitted on the outside of the rotating shaft 2. Several mixing blades 5 for mixing asphalt concrete are fixedly connected to the outside of the retaining sleeve 4. One-way pipes 12 and exhaust pipes 13 are fixedly connected to both sides of the top of the mixing tank 1. A purification box 14 is fixedly connected to the outside of the mixing tank 1 above the exhaust pipe 13. One end of the exhaust pipe 13 on the outside of the mixing tank 1 extends to the bottom of the purification box 14. A motor is fixedly connected to the bottom of the mixing tank 1, and its output end is fixedly connected to the bottom of the rotating shaft 2. A sealing sleeve is fixedly connected to the contact surface between the bottom of the mixing tank 1 and the rotating shaft 2. The one-way pipe 12 is U-shaped. A feeding pipe is fixedly connected to the top of the purification box 14. Several support legs are fixedly connected to the outside of the bottom of the mixing tank 1. A discharge pipe 15 is fixedly connected to one side of the bottom of the mixing tank 1, and a valve is fixedly connected to its outside.

[0025] Open the movable cover 10, add asphalt raw materials into the mixing tank 1, close the movable cover 10, drive the rotating shaft 2 through the motor, and drive the clamp 4 to rotate through the side strip 3, so that the mixing blade 5 mixes the asphalt concrete. At the same time, the scraper 6 will also rotate with the clamp 4 to scrape off the asphalt concrete adhering to the inner wall of the mixing tank 1. The electric heating strip fixedly connected to the outside of the mixing tank 1 can heat the mixing tank 1 to assist the mixing. Water can be added into the mixing tank 1 through the one-way pipe 12, and the U-shaped design at the bottom forms a water seal, so that the gas generated during mixing can only enter the purification box 14 through the exhaust pipe 13 and be purified.

[0026] The U-shaped design of the one-way pipe 12 allows water to be injected at its bottom, forming a water seal that effectively prevents harmful gases from leaking out of the one-way pipe 12 and also prevents outside air from entering the mixing tank 1. This ensures the stability and sealing of the internal environment of the mixing tank 1. Water can also be added to the mixing tank 1 through the one-way pipe 12, which is convenient and does not damage the sealing of the mixing tank 1. The harmful gases generated inside the mixing tank 1 are guided to the purification box 14 through the exhaust pipe 13. The purification box 14 contains a special purification liquid, which can chemically absorb, neutralize or adsorb harmful gases, thereby avoiding environmental pollution.

[0027] Please see Figures 1-4A threaded block 7 is fixedly connected to the top of the rotating shaft 2, and a hemispherical block 8 is fixedly connected to the top of the threaded block 7. An inner threaded sleeve 9 is threadedly connected to the outside of the threaded block 7. The bottom of the inner threaded sleeve 9 is tightly fitted to the top of the sleeve 4. A movable cover 10 is hinged to the top of the mixing tank 1. A retainer 11 is fixedly connected to the center of the bottom of the movable cover 10. The retainer 11 is fitted onto the top of the hemispherical block 8. The inner ends of the sleeve 4 are adapted to the shape of the edge strip 3. The diameters of the bottom ends of the rotating shaft 2, the threaded block 7, and the hemispherical block 8 are the same. A hemispherical groove adapted to the hemispherical block 8 is opened at the bottom end of the retainer 11. The outer side of the bottom end of the retainer 11 is tightly fitted to the top of the inner threaded sleeve 9. Scrapers 6 are fixedly connected to both sides of the sleeve 4. The other side of the two scrapers 6 is tightly fitted to the inside of the mixing tank 1.

[0028] After mixing is complete, open the valve on the discharge pipe 15 to discharge the mixed asphalt concrete. Then open the movable cover 10 to disengage the seat 11 from the hemispherical block 8. Rotate the inner threaded sleeve 9 to disengage it from the threaded block 7. Pull out the sleeve 4 outside the rotating shaft 2. Clean the mixing blade 5 and scraper 6, and then reinstall them in their original positions.

[0029] The design of the sleeve 4 on the outside of the rotating shaft 2 facilitates disassembly when needed, enabling convenient disassembly and replacement of the stirring blade 5 and scraper 6, facilitating cleaning and maintenance, and extending the service life of the device. The threaded connection between the threaded block 7 and the inner threaded sleeve 9, together with the structure of the upper side strip 3, can precisely fix the position of the sleeve 4, ensuring that the sleeve 4 will not loosen or shift during the stirring process. It also allows the stirring blade 5 and scraper 6 to be more firmly installed on the rotating shaft 2, thereby ensuring the stability and uniformity of the stirring process. The design of the seat 11 and the hemispherical block 8 can not only effectively prevent the rotating shaft 2 from shaking or shifting during the stirring process, but also evenly distribute the various forces generated during the stirring process to each component, thereby improving the stability of the device.

[0030] The working principle and usage process of this utility model are as follows: Open the movable cover 10, add asphalt raw materials into the mixing tank 1, close the movable cover 10, drive the rotating shaft 2 through the motor, and drive the sleeve 4 to rotate through the side strip 3, so that the mixing blade 5 mixes the asphalt concrete. At the same time, the scraper 6 will also rotate with the sleeve 4 to scrape off the asphalt concrete adhering to the inner wall of the mixing tank 1. The electric heating strip fixedly connected to the outside of the mixing tank 1 can heat the mixing tank 1 to assist the mixing. Water can be added into the mixing tank 1 through the one-way pipe 12, and a water seal is formed through the U-shaped design at the bottom, so that the gas generated during mixing can only enter the purification box 14 through the exhaust pipe 13 and be purified. After the mixing is completed, open the valve on the discharge pipe 15 to discharge the mixed asphalt concrete. Then open the movable cover 10 to make the seat 11 disengage from the hemispherical block 8. Rotate the inner threaded sleeve 9 to disengage it from the threaded block 7. Pull out the sleeve 4 outside the rotating shaft 2, clean the mixing blade 5 and the scraper 6, and then reinstall them in their original positions.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An asphalt concrete mixing apparatus, comprising a mixing tank (1), characterized in that, The bottom end of the mixing tank (1) is rotatably connected to a rotating shaft (2). Side strips (3) are fixedly connected to both sides of the rotating shaft (2) inside the mixing tank (1). A retaining sleeve (4) is fitted on the outside of the rotating shaft (2). Several mixing blades (5) for mixing asphalt concrete are fixedly connected to the outside of the retaining sleeve (4). A threaded block (7) is fixedly connected to the top of the rotating shaft (2). A hemispherical block (8) is fixedly connected to the top of the threaded block (7). An inner threaded sleeve (9) is threadedly connected to the outside of the threaded block (7). The bottom of the inner threaded sleeve (9) is connected to the retaining sleeve (5). 4) The top of the mixing tank (1) is tightly fitted. The top of the mixing tank (1) is hinged with a movable cover (10). A card seat (11) is fixedly connected at the center of the bottom of the movable cover (10). The card seat (11) is fitted onto the top of the hemispherical block (8). A one-way pipe (12) and an exhaust pipe (13) are fixedly connected to the two sides of the top of the mixing tank (1). A purification box (14) is fixedly connected above the exhaust pipe (13) on the outside of the mixing tank (1). One end of the exhaust pipe (13) on the outside of the mixing tank (1) extends to the bottom of the purification box (14).

2. The asphalt concrete mixing apparatus according to claim 1, characterized in that, The inner ends of the sleeve (4) are adapted to the shape of the edge strip (3), and the diameters of the bottom ends of the shaft (2), threaded block (7) and hemispherical block (8) are the same.

3. The asphalt concrete mixing apparatus according to claim 1, characterized in that, The bottom end of the card holder (11) is provided with a hemispherical groove adapted to the hemispherical block (8), and the outer side of the bottom end of the card holder (11) is in close contact with the top end of the inner thread sleeve (9).

4. The asphalt concrete mixing apparatus according to claim 1, characterized in that, Both sides of the sleeve (4) are fixedly connected to scrapers (6), and the other side of the two scrapers (6) is tightly fitted to the inside of the mixing tank (1).

5. The asphalt concrete mixing apparatus according to claim 1, characterized in that, A motor is fixedly connected to the bottom of the mixing tank (1), and its output end is fixedly connected to the bottom of the rotating shaft (2). A sealing sleeve is fixedly connected to the contact surface between the bottom of the mixing tank (1) and the rotating shaft (2).

6. The asphalt concrete mixing apparatus according to claim 1, characterized in that, The one-way tube (12) is U-shaped, and a feeding tube is fixedly connected to the top of the purification box (14).

7. The asphalt concrete mixing apparatus according to claim 1, characterized in that, Several support legs are fixedly connected to the outer side of the bottom end of the mixing tank (1), and a discharge pipe (15) is fixedly connected to one side of the bottom end of the mixing tank (1), with a valve fixedly connected to its outer side.

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