Asphalt concrete milling material cold regeneration asphalt mixing mechanism

Abstract

The utility model discloses an asphalt concrete milling material cold regeneration asphalt mixing mechanism belongs to cold regeneration asphalt mixing technical field, and the mixing mechanism body includes the mixing bucket, and the bottom one side of mixing bucket is provided with the discharge gate, and the bottom middle fixed mounting of mixing bucket has the motor, and the output fixedly connected with motor has the rotating shaft, and the one end detachable connection of rotating shaft has the stirring subassembly, and the one end of mixing bucket buckling has the cover, and the surface of cover is opened and has the feeding port, and the surface fixed mounting of cover has the feeding pump, and this asphalt concrete milling material cold regeneration asphalt mixing mechanism, through setting up the column, the stirring rod, the stirring frame, the stirring board, the upper sleeve and the lower sleeve, not only can improve the mixing efficiency of cold regeneration asphalt when rotating, facilitates the overhaul of replacement simultaneously, and through setting up the feeding pump, the discharge hole, the flow guide hole, the connecting groove and the feeding nozzle can evenly add the modified additive under the condition of not stopping, and the use convenience has been improved.

Description

Technical Field

[0001] This utility model relates to the field of cold recycled asphalt mixing technology, and more specifically, to a cold recycled asphalt mixing mechanism for asphalt concrete milling material. Background Technology

[0002] Cold recycled asphalt is produced by crushing old asphalt pavement materials at room temperature and mixing them with appropriate asphalt and modifiers.

[0003] Currently, mixing devices are required when mixing cold recycled asphalt. However, commonly used mixing devices use more than one motor to mix materials in order to improve the mixing effect, and it is not easy to add modified additives evenly. For example, a cold recycled asphalt mixture mixing device disclosed in CN222525104U includes a fixed platform, a mixing drum fixedly installed inside the fixed platform, a first motor and a second motor fixedly installed on both sides of the mixing drum through fixed plates, and a first mixing mechanism is provided on the inner side of the mixing drum through a rotating tube.

[0004] As can be seen from the above-disclosed scheme, the stirring component is driven by the first motor and the second motor to rotate and stir, thereby improving the mixing effect. This not only increases the consumption of electricity, but also makes it difficult to repair and replace the stirring component after it is damaged in the later stage. Furthermore, the machine needs to be stopped when adding modified additives, and it is not easy to align the inner tank with the additive inlet after the machine is stopped, making the addition of modified additives more cumbersome and inconvenient, thus reducing work efficiency. Utility Model Content

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a cold recycled asphalt mixing mechanism for milled asphalt concrete. This cold recycled asphalt mixing mechanism for milled asphalt concrete, through the setting of columns, mixing rods, mixing frames, mixing plates, upper clamps, and lower clamps, can not only improve the mixing efficiency of cold recycled asphalt during rotation, but also facilitate disassembly and maintenance. Furthermore, through the setting of a feeding pump, feeding hole, guide hole, connecting groove, and feeding nozzle, modified additives can be added evenly without stopping the machine, thus improving the convenience of use.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A cold recycled asphalt mixing mechanism for milled asphalt concrete includes a mixing mechanism body, which includes a mixing drum. A discharge port is located on one side of the bottom of the mixing drum. A motor is fixedly installed in the middle of the bottom of the mixing drum. A rotating shaft is fixedly connected to the output end of the motor. A mixing assembly is detachably connected to one end of the rotating shaft. A cover plate is fastened to one end of the mixing drum. A feeding port is opened on the surface of the cover plate. A feeding pump is fixedly installed on the surface of the cover plate. A feeding hopper is fixedly installed at the suction end of the feeding pump. This cold recycled asphalt mixing mechanism for milled asphalt concrete, through its uprights, mixing rod, mixing frame, mixing plate, upper clamp, and lower clamp, not only improves the mixing efficiency of cold recycled asphalt during rotation but also facilitates disassembly and maintenance. Furthermore, the feeding pump, discharge hole, guide hole, connecting groove, and feeding nozzle allow for the uniform addition of modified additives without stopping the machine, improving ease of use.

[0008] Furthermore, the stirring assembly includes a column, one end of which is fixedly fitted with an upper sleeve, one end of which has a locking hole, the bottom of which is fixedly connected to a guide hole, and the other end of the column is fixedly connected with a lower sleeve, one end of which has a polygonal locking groove. The locking groove and the polygonal locking hole on the upper sleeve can ensure the rotational stability of the column.

[0009] Furthermore, a stirring rod is fixedly connected to the surface of the column. One end of the stirring rod has a connecting groove that communicates with the guide hole. A feeding nozzle is fixedly connected inside the connecting groove. A one-way valve is fixedly installed on the surface of the feeding nozzle, which facilitates the uniform addition of liquid modified additives to the recycled asphalt through each feeding nozzle. At the same time, the one-way valve can prevent the feeding nozzle from becoming clogged.

[0010] Furthermore, a stirring frame is fixedly connected to the sides of the upper and lower sleeves, and a short rod is rotatably connected to the inner wall of the stirring frame. A stirring plate is fixedly connected to one end of the short rod, and a through hole is opened on the surface of the stirring plate. The stirring plate and the stirring frame have the function of rotating and mixing materials, which improves the mixing effect.

[0011] Furthermore, the rotating shaft is rotatably connected to the bottom of the mixing tank via a sealed bearing, and a plug-in shaft is fixedly connected to one end of the rotating shaft. The plug-in shaft is polygonal in shape, and its surface is slidably connected to the lower sleeve, which facilitates the rotating shaft to drive the column to rotate.

[0012] Furthermore, a feeding rod is fixedly connected to the discharge end of the feeding pump, and a reinforcing block is fixedly connected to the surface of the feeding rod. A feeding hole is opened at one end of the feeding rod. The feeding rod is polygonal and is slidably connected to the upper sleeve. At the same time, the feeding hole is connected to the guide hole, which not only facilitates the fixing of one end of the column, but also facilitates the guidance of the liquid modified additive.

[0013] Furthermore, both the upper and lower ferrules are fixedly connected to spring washers on their end faces. The spring washers are made of corrosion-resistant and wear-resistant materials to prevent wear on the end faces of the upper and lower ferrules.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] (1) This scheme, through the setting of columns, mixing rods, mixing frames, mixing plates, upper ferrules and lower ferrules, can not only improve the mixing efficiency of cold recycled asphalt during rotation, but also facilitate disassembly and maintenance.

[0016] (2) This solution can uniformly add modified additives without stopping the machine by setting up a feeding pump, feeding hole, guide hole, connecting groove and feeding nozzle, which improves the convenience of use. Attached Figure Description

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

[0018] Figure 2 This is a schematic diagram of the stirring assembly structure of this utility model;

[0019] Figure 3 for Figure 2 A sectional view of the installation structure of the column and stirring rod;

[0020] Figure 4 This is a schematic diagram of the cover plate and the feeding pump installation structure of this utility model;

[0021] Figure 5 This is a cross-sectional view of the mixing tank structure of this utility model.

[0022] Explanation of the labels in the diagram:

[0023] 1. Mixing mechanism body; 2. Mixing tank; 21. Discharge port; 22. Motor; 23. Rotating shaft; 24. Insertion shaft; 3. Stirring assembly; 31. Column; 32. Guide hole; 33. Upper sleeve; 34. Locking hole; 35. Spring pad; 36. Lower sleeve; 37. Stirring rod; 38. Connecting groove; 39. Feeding nozzle; 4. Stirring frame; 41. Stirring plate; 42. Through hole; 43. Short rod; 5. Cover plate; 51. Feeding pump; 52. Feeding hopper; 53. Reinforcing block; 54. Discharge rod; 55. Discharge hole; 56. Feeding port. Detailed Implementation

[0024] 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.

[0025] Example 1

[0026] Please see Figure 1-5 A cold recycled asphalt mixing mechanism for milled asphalt concrete includes a mixing mechanism body 1, which includes a mixing drum 2. Support legs are fixedly connected to the bottom of the mixing drum 2, with a minimum of three support legs. A discharge port 21 is provided on one side of the bottom of the mixing drum 2. A motor 22 is fixedly installed in the middle of the bottom of the mixing drum 2. A rotating shaft 23 is fixedly connected to the output end of the motor 22. A mixing assembly 3 is detachably connected to one end of the rotating shaft 23. The mixing assembly 3 includes a column 31. An upper retaining sleeve 33 is fixedly fitted to one end of the column 31. A retaining hole 34 is opened at one end of the upper retaining sleeve 33, and a guide hole 32 is fixedly connected to the bottom of the retaining hole 34. A lower retaining sleeve 36 is fixedly connected to the other end of the column 31. A polygonal groove is provided at one end of the lower retaining sleeve 36. The groove and the polygonal retaining hole 34 provided in the upper retaining sleeve 33 can ensure the rotational stability of the column 31. One end of the mixing tank 2 is fastened with a cover plate 5. The surface of the cover plate 5 has a feeding port 56. A feeding pump 51 is fixedly installed on the surface of the cover plate 5. The feeding pump 51 can pressurize the added liquid modified additive. At the same time, a dosage pump can be used to control its addition amount, which not only improves the addition efficiency and uniformity of the modified additive, but also avoids the waste of the modified additive. The discharge end of the feeding pump 51 is fixedly connected with a feeding rod 54. A reinforcing block 53 is fixedly connected to the surface of the feeding rod 54. One end of the feeding rod 54 has a feeding hole 55. The feeding rod 54 is polygonal and is slidably connected to the upper sleeve 33. At the same time, the feeding hole 55 is connected to the guide hole 32, which not only facilitates the fixation of one end of the column 31, but also facilitates the guidance of the liquid modified additive. The suction end of the feeding pump 51 is fixedly installed with a feeding hopper 52. The feeding hopper 52 is made of transparent plastic and has a scale on its surface.

[0027] A stirring rod 37 is fixedly connected to the surface of the column 31. One end of the stirring rod 37 has a connecting groove 38 that communicates with the guide hole 32. A feeding nozzle 39 is fixedly connected inside the connecting groove 38. A one-way valve is fixedly installed on the surface of the feeding nozzle 39 to facilitate the even addition of liquid modified additives to the recycled asphalt through each feeding nozzle 39. At the same time, the one-way valve can prevent the feeding nozzle 39 from being blocked. A stirring frame 4 is fixedly connected to the sides of the upper sleeve 33 and the lower sleeve 36. A short rod 43 is rotatably connected to the inner wall of the stirring frame 4. A stirring plate 41 is fixedly connected to one end of the short rod 43. A through hole 42 is opened on the surface of the stirring plate 41. The stirring plate 41 and the stirring frame 4 have the function of rotating and mixing materials, which improves the mixing effect.

[0028] The rotating shaft 23 is rotatably connected to the bottom of the mixing tank 2 via a sealed bearing. One end of the rotating shaft 23 is fixedly connected to a plug shaft 24, which is polygonal in shape. The surface of the plug shaft 24 is slidably connected to the lower sleeve 36, which facilitates the rotating shaft 23 to drive the column 31 to rotate. The end faces of the upper sleeve 33 and the lower sleeve 36 are both fixedly connected to spring pads 35, which are made of corrosion-resistant and wear-resistant material to prevent wear on the end faces of the upper sleeve 33 and the lower sleeve 36.

[0029] During installation, the asphalt concrete milled material cold recycled asphalt mixing mechanism is first installed vertically downwards into the mixing drum 2, so that the insertion shaft 24 is inserted upwards into the groove of the lower clamping sleeve 36. Then, the cover plate 5 is fastened downwards. When not closed, the feeding rod 54 can be aligned with the upper clamping sleeve 33 and inserted. After insertion, the cover plate 5 is fastened in place. Then, the motor 22 is started, which drives the rotating shaft 23 to rotate. The rotation of the rotating shaft 23 drives the column 31 to rotate, which in turn drives the mixing rod 37 and the mixing frame 4 to rotate. Then, the material is added through the feeding port 56. After the material comes into contact with the mixing plate 41, it drives the mixing plate 41 to rotate and mix. When adding liquid modified additives, they are added directly into the feeding hopper 52, and then the feeding machine is started. The feed pump 51 draws out the liquid modified additive from the feed hopper 52 and then delivers it to the guide hole 32 through the discharge hole 55. The liquid modified additive in the guide hole 32 then enters the connecting groove 38. During the rotation of the stirring rod 37, the liquid modified additive is evenly added to the material through each feed nozzle 39. The set column 31, stirring rod 37, stirring frame 4, stirring plate 41, upper clamp 33 and lower clamp 36 can not only improve the mixing efficiency of cold recycled asphalt during rotation, but also facilitate disassembly and maintenance. Furthermore, the set feed pump 51, discharge hole 55, guide hole 32, connecting groove 38 and feed nozzle 39 can evenly add modified additive without stopping the machine, improving the convenience of use.

[0030] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A cold recycled asphalt mixing mechanism for milled asphalt concrete, comprising a mixing mechanism body (1), characterized in that: The mixing mechanism body (1) includes a mixing tank (2), a discharge port (21) is provided on one side of the bottom of the mixing tank (2), a motor (22) is fixedly installed in the middle of the bottom of the mixing tank (2), a rotating shaft (23) is fixedly connected to the output end of the motor (22), a stirring assembly (3) is detachably connected to one end of the rotating shaft (23), a cover plate (5) is fastened to one end of the mixing tank (2), a feeding port (56) is opened on the surface of the cover plate (5), a feeding pump (51) is fixedly installed on the surface of the cover plate (5), and a feeding hopper (52) is fixedly installed at the suction end of the feeding pump (51). The stirring assembly (3) includes a column (31), one end of which is fixedly fitted with an upper sleeve (33), one end of which has a locking hole (34), the bottom of which is fixedly connected to a guide hole (32), the other end of which is fixedly connected with a lower sleeve (36), a stirring rod (37) is fixedly connected to the surface of the column (31), one end of which has a connecting groove (38) connected to the guide hole (32), the inside of which is fixedly connected to a feeding nozzle (39), a one-way valve is fixedly installed on the surface of the feeding nozzle (39), a feeding rod (54) is fixedly connected to the discharge end of the feeding pump (51), a reinforcing block (53) is fixedly connected to the surface of the feeding rod (54), and a feeding hole (55) is opened at one end of the feeding rod (54).

2. The asphalt concrete milling material cold recycled asphalt mixing mechanism according to claim 1, characterized in that: The upper sleeve (33) and the lower sleeve (36) are fixedly connected to a stirring frame (4), and a short rod (43) is rotatably connected to the inner wall of the stirring frame (4). A stirring plate (41) is fixedly connected to one end of the short rod (43), and a through hole (42) is opened on the surface of the stirring plate (41).

3. The asphalt concrete milling material cold recycled asphalt mixing mechanism according to claim 1, characterized in that: The rotating shaft (23) is rotatably connected to the bottom of the mixing tank (2) via a sealed bearing. One end of the rotating shaft (23) is fixedly connected to a plug shaft (24), which is polygonal in shape.

4. The asphalt concrete milling material cold recycled asphalt mixing mechanism according to claim 1, characterized in that: Both the upper sleeve (33) and the lower sleeve (36) have spring pads (35) fixedly connected to their end faces.

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