A high-efficiency double-screw mixer for producing high-content rubber asphalt

Abstract

A high-efficiency double-helix mixer for producing high-content rubber asphalt includes a support frame and a rotating frame. The support frame has a bearing seat, and a rotating shaft is movably mounted on the bearing seat. The rotating frame is mounted on the rotating shaft and has a mixing structure and a discharge structure. One end of the rotating shaft has a drive assembly, and the rotating frame has a limiting assembly. The advantages of this invention are as follows: This invention, as a high-efficiency double-helix mixer for producing high-content rubber asphalt, uses a first motor to drive a second gear to rotate. The first gear, under the action of the second gear, drives the rotating shaft to rotate on the bearing seat. The rotating frame follows the rotating shaft. A fixed frame on the rotating frame drives the mixing tank to rotate, adjusting the discharge angle and improving discharge efficiency. A third motor drives an auger to rotate, and the modified asphalt is discharged from the mixing tank under the action of the auger, preventing accumulation at the discharge port of the mixing tank. This solves the problem of asphalt sticking after long-term discharge, which can cause blockage of the discharge pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of asphalt processing, in particular to a high-efficiency double-helix mixer for producing high-content rubber asphalt. Background Art

[0002] High-viscosity asphalt modifier is a new type of pavement composite material with a light yellow or light black granular appearance. It is mixed with base asphalt in a certain ratio and is made into high-viscosity asphalt using a special process. It can greatly increase the viscosity of asphalt and can directly modify asphalt concrete without the need for special equipment, eliminating the need for strong shearing to prepare modified asphalt and the stabilization process of modified asphalt. High-viscosity asphalt modifier is added to petroleum asphalt for heavy traffic roads and the asphalt is modified through a certain process. It can not only improve and enhance the high-temperature stability, low-temperature deformation and fatigue resistance of asphalt, asphalt mixture and asphalt pavement, but also improve the water stability and low-temperature cracking resistance of the mixture.

[0003] When the high-viscosity asphalt storage tank in the prior art is in use, it discharges the asphalt through a pipe connected to the discharge valve. After a long period of discharge, the asphalt will stick or solidify on the inner wall of the discharge pipe, causing blockage of the discharge pipe, which not only affects the discharge of the asphalt storage tank, but also causes other safety hazards due to the increase in pressure in the tank body caused by asphalt retention or blockage. For this reason, we designed an efficient double-helix mixer for the production of high-dosage rubber asphalt. Utility Model Content

[0004] In order to solve the above problems existing in the prior art, the utility model aims to provide a high-efficiency double-helix mixer for producing high-content rubber asphalt.

[0005] The technical solution adopted by the utility model is:

[0006] A high-efficiency double-helix mixer for producing high-content rubber asphalt comprises a support frame and a rotating frame, wherein the support frame is provided with a bearing seat, a rotating shaft is movably provided on the bearing seat, the rotating frame is mounted on the rotating shaft, a mixing structure is provided on the rotating frame, a discharging structure is provided on the mixing structure, a driving assembly is provided at one end of the rotating shaft, and a limiting assembly is provided on the rotating frame.

[0007] As a preferred embodiment of the utility model, the driving assembly includes a connecting frame and a first motor, the connecting frame is mounted on the supporting frame, a first gear is movably provided on the connecting frame, the first gear is connected to the rotating shaft, the first motor is mounted on the connecting frame, a second gear is provided at the driving end of the first motor, and the first gear is meshed with the second gear.

[0008] As a preferred embodiment of the present invention, the lower wall surface of the support frame is provided with supporting feet.

[0009] As a preferred embodiment of the utility model, the limiting assembly includes a placing seat and a moving rod, the placing seat is installed on the supporting frame, a sleeve is movably provided on the placing seat, the moving rod is movably provided on the rotating frame, a sliding groove is provided in the sleeve, and one end of the moving rod passes through the sleeve and is movably connected to the sliding groove.

[0010] As a preferred embodiment of the present invention, the mixing structure includes a fixed frame, which is installed on the rotating frame, and a stirring barrel is provided on the fixed frame. A stirring shaft is provided in the stirring barrel, and a stirring blade is provided on the stirring shaft. One end of the stirring shaft passes through the side wall of the stirring barrel, and a transmission assembly is provided on the fixed frame.

[0011] As a preferred embodiment of the present invention, the transmission assembly includes a second motor and a first pulley, the second motor is mounted on the fixed frame, the first pulley is mounted on the stirring shaft, a second pulley is provided on the driving end of the second motor, and a transmission belt is provided on the first pulley and the second pulley.

[0012] As a preferred embodiment of the utility model, the discharging structure includes a discharging pipe and a third motor, the discharging pipe is installed at the discharging port of the mixing barrel, the third motor is installed on the discharging pipe, an auger is provided in the discharging pipe, one end of the auger passes through the side wall of the discharging pipe and is connected to the third motor.

[0013] As a preferred embodiment of the present invention, the discharge pipe is fixed to the mixing barrel by bolts.

[0014] The beneficial effects of the utility model are as follows: as a high-efficiency double-helix mixer for producing high-content rubber asphalt, the utility model drives the second gear to rotate through the first motor, and the first gear drives the rotating shaft to rotate on the bearing seat under the action of the second gear, and the rotating frame rotates with the rotating shaft, and the fixed frame on the rotating frame drives the mixing barrel to rotate to adjust the discharging angle, which can improve the discharging efficiency, and the third motor drives the auger to rotate, and the modified asphalt is discharged from the mixing barrel under the action of the auger, and does not accumulate at the discharge port of the mixing barrel, which solves the problem that asphalt will stick to or solidify on the inner wall of the discharge pipe after long-term discharge, causing blockage of the discharge pipe, which not only affects the discharge of the asphalt storage tank, but also causes other safety hazards due to the increased pressure in the tank body caused by asphalt retention or blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0016] Figure 1 This is a schematic diagram of the main structure of a high-efficiency double-helix mixer for producing high-content rubber asphalt according to the utility model.

[0017] Figure 2The utility model is a side view structural schematic diagram of a high-efficiency double-helix mixer for producing high-content rubber asphalt.

[0018] Figure 3 This is a three-dimensional structural schematic diagram of a discharge pipe of a high-efficiency double-helix mixer for producing high-content rubber asphalt according to the utility model.

[0019] Figure 4 This is a three-dimensional structural schematic diagram of a support frame for a high-efficiency double-helix mixer for producing high-content rubber asphalt according to the utility model.

[0020] Figure 5 This is a three-dimensional structural schematic diagram of a connecting frame of a high-efficiency double-helix mixer for producing high-content rubber asphalt according to the utility model.

[0021] Figure 6 The utility model is a schematic diagram of the internal structure of the sleeve of a high-efficiency double-helix mixer for producing high-content rubber asphalt.

[0022] In the figure: 1, support frame, 2, bearing seat, 3, rotating shaft, 4, connecting frame, 5, first gear, 6, first motor, 7, second gear, 8, rotating frame, 9, placement seat, 10, sleeve, 11, sliding groove, 12, moving rod, 13, fixed frame, 14, mixing barrel, 15, mixing shaft, 16, mixing blade, 17, second motor, 18, second pulley, 19, first pulley, 20, transmission belt, 21, discharge pipe, 22, auger, 23, third motor. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model, that is, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the utility model provided in the accompanying drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0025] Combine the following Figure 1-6The specific implementation mode of the utility model is described as a high-efficiency double-helix mixer for producing high-content rubber asphalt, comprising a support frame 1 and a rotating frame 8, wherein the support frame 1 is provided with a bearing seat 2, a rotating shaft 3 is movably provided on the bearing seat 2, the rotating frame 8 is installed on the rotating shaft 3, a mixing structure is provided on the rotating frame 8, a discharging structure is provided on the mixing structure, a driving assembly is provided at one end of the rotating shaft 3, a limiting assembly is provided on the rotating frame 8, the driving assembly can drive the rotating frame 8 on the rotating shaft 3 to rotate, the mixing structure and the discharging structure rotate with the rotating frame 8, the limiting assembly can prevent the rotating frame 8 from tipping over, and the bearing seat 2 is provided with a pair.

[0026] Advantageously, the driving assembly includes a connecting frame 4 and a first motor 6, the connecting frame 4 is mounted on the supporting frame 1, a first gear 5 is movably provided on the connecting frame 4, the first gear 5 is connected to the rotating shaft 3, the first motor 6 is mounted on the connecting frame 4, a second gear 7 is provided at the driving end of the first motor 6, the first gear 5 is meshed with the second gear 7, the first motor 6 can drive the second gear 7 to rotate, and the first gear 5 drives the rotating shaft 3 to connect under the action of the second gear 7.

[0027] Advantageously, the lower wall surface of the support frame 1 is provided with supporting feet, and four supporting feet are evenly installed on the lower wall surface of the support frame 1. The four supporting feet can make the device more stable when placed.

[0028] Advantageously, the limiting assembly includes a placement seat 9 and a moving rod 12, the placement seat 9 is installed on the support frame 1, a sleeve 10 is movably provided on the placement seat 9, the moving rod 12 is movably provided on the rotating frame 8, a sliding groove 11 is provided in the sleeve 10, one end of the moving rod 12 passes through the sleeve 10 and is movably connected to the sliding groove 11, the moving rod 12 can slide on the sliding groove 11 in the sleeve 10, the moving rod 12 moves with the rotating frame 8, the connection between the sleeve 10 and the support frame 1 and the connection between the moving rod 12 and the rotating frame 8 are both movable, so the moving rod 12 can limit the rotating frame 8.

[0029] Advantageously, the mixing structure includes a fixed frame 13, which is mounted on the rotating frame 8. A stirring barrel 14 is provided on the fixed frame 13. A stirring shaft 15 is provided in the stirring barrel 14. A stirring blade 16 is provided on the stirring shaft 15. One end of the stirring shaft 15 passes through the side wall of the stirring barrel 14. A transmission assembly is provided on the fixed frame 13. A plurality of stirring blades 16 are provided to facilitate following the rotation of the stirring shaft 15 and stirring.

[0030] Advantageously, the transmission assembly includes a second motor 17 and a first pulley 19, the second motor 17 is mounted on the fixed frame 13, the first pulley 19 is mounted on the stirring shaft 15, a second pulley 18 is provided on the driving end of the second motor 17, a transmission belt 20 is provided on the first pulley 19 and the second pulley 18, the second motor 17 can drive the second pulley 18 to rotate, the second pulley 18 drives the transmission belt 20 for transmission, and the first pulley 19 drives the stirring shaft 15 to rotate under the action of the second pulley 18 and the transmission belt 20, thereby facilitating stirring.

[0031] Advantageously, the discharging structure includes a discharging pipe 21 and a third motor 23. The discharging pipe 21 is installed at the discharging port of the mixing barrel 14. The third motor 23 is installed on the discharging pipe 21. An auger 22 is provided in the discharging pipe 21. One end of the auger 22 passes through the side wall of the discharging pipe 21 and is connected to the third motor 23. The third motor 23 can drive the auger 22 to rotate in the discharging pipe 21, and the auger 22 can deliver the stirred material out of the mixing barrel 14.

[0032] Advantageously, the discharge pipe 21 is fixed to the mixing barrel 14 by bolts, and the discharge pipe 21 fixed by bolts is easy to install and remove from the mixing barrel 14.

[0033] Working principle of this utility model:

[0034] First, asphalt and modifier are added into the mixing barrel 14, and the second motor 17 is driven to drive the second pulley 18 to rotate. The transmission belt 20 drives the first pulley 19 on the mixing shaft 15 to rotate under the action of the second pulley 18. The mixing shaft 15 synchronously follows the first pulley 19 to drive a plurality of stirring blades 16 to rotate. The external heating device increases the temperature of the mixing barrel 14. This is the prior art and will not be described in detail. The plurality of stirring blades 16 mix the asphalt and modifier in the mixing barrel 14. When it needs to be discharged, the first motor 6 is driven. The first motor 6 drives the second gear 7 to rotate. The first gear The wheel 5 drives the rotating shaft 3 to rotate on the bearing seat 2 under the action of the second gear 7, and the rotating frame 8 rotates with the rotating shaft 3. The fixed frame 13 on the rotating frame 8 drives the mixing barrel 14 to rotate and adjust the discharging angle, which can improve the discharging efficiency. The moving rod 12 follows the rotating frame 8 to move on the sliding groove 11 in the sleeve 10. The moving rod 12 can limit the rotating frame 8. After the mixing barrel 14 adjusts the appropriate angle, it drives the third motor 23. The third motor 23 drives the auger 22 to rotate. The modified asphalt is discharged from the mixing barrel 14 under the action of the auger 22 and does not accumulate at the discharge port of the mixing barrel 14.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency double-screw mixer for producing high-content rubber asphalt, characterized in that: The invention comprises a support frame (1) and a rotating frame (8), wherein a bearing seat (2) is provided on the support frame (1), a rotating shaft (3) is movably provided on the bearing seat (2), the rotating frame (8) is mounted on the rotating shaft (3), a mixing structure is provided on the rotating frame (8), a discharging structure is provided on the mixing structure, a driving component is provided at one end of the rotating shaft (3), and a limiting component is provided on the rotating frame (8).

2. A high-efficiency double-screw mixer for producing high-content rubber asphalt according to claim 1, characterized in that: The driving assembly comprises a connecting frame (4) and a first motor (6); the connecting frame (4) is mounted on the supporting frame (1); a first gear (5) is movably provided on the connecting frame (4); the first gear (5) is connected to the rotating shaft (3); the first motor (6) is mounted on the connecting frame (4); a second gear (7) is provided at a driving end of the first motor (6); the first gear (5) is meshed with the second gear (7).

3. The high-efficiency double-screw mixer for producing high-content rubber asphalt according to claim 1, characterized in that: The lower wall surface of the support frame (1) is provided with supporting feet.

4. The high-efficiency double-screw mixer for producing high-content rubber asphalt according to claim 1, characterized in that: The limiting assembly comprises a placement seat (9) and a moving rod (12); the placement seat (9) is mounted on the support frame (1); a sleeve (10) is movably provided on the placement seat (9); the moving rod (12) is movably provided on the rotating frame (8); a sliding groove (11) is provided in the sleeve (10); one end of the moving rod (12) passes through the sleeve (10) and is movably connected to the sliding groove (11).

5. The high-efficiency double-screw mixer for producing high-content rubber asphalt according to claim 1, characterized in that: The mixing structure comprises a fixed frame (13), the fixed frame (13) being mounted on the rotating frame (8), a stirring barrel (14) being provided on the fixed frame (13), a stirring shaft (15) being provided inside the stirring barrel (14), a stirring blade (16) being provided on the stirring shaft (15), one end of the stirring shaft (15) passing through a side wall surface of the stirring barrel (14), and a transmission assembly being provided on the fixed frame (13).

6. A high-efficiency double-screw mixer for producing high-content rubber asphalt according to claim 5, characterized in that: The transmission assembly comprises a second motor (17) and a first pulley (19), wherein the second motor (17) is mounted on the fixed frame (13), the first pulley (19) is mounted on the stirring shaft (15), a second pulley (18) is provided on the driving end of the second motor (17), and a transmission belt (20) is provided on the first pulley (19) and the second pulley (18).

7. The high-efficiency double-screw mixer for producing high-content rubber asphalt according to claim 5, characterized in that: The discharge structure comprises a discharge pipe (21) and a third motor (23); the discharge pipe (21) is installed at the discharge port of the mixing barrel (14); the third motor (23) is installed on the discharge pipe (21); an auger (22) is provided in the discharge pipe (21); one end of the auger (22) passes through the side wall of the discharge pipe (21) and is connected to the third motor (23).

8. The high-efficiency double-screw mixer for producing high-content rubber asphalt according to claim 7, characterized in that: The discharge pipe (21) is fixed to the mixing barrel (14) by means of bolts.

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