Mixing tank for processing SMA asphalt mixture

By introducing a dredging mechanism into the mixing tank, and using a servo motor to drive the worm gear and worm wheel to dredge the discharge port, the problem of blockage at the discharge port of SMA asphalt mixture is solved, achieving smooth discharge and protection of the mixing tank.

CN224173157UActive Publication Date: 2026-04-28RIZHAO YAYU NEW MATERIAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
RIZHAO YAYU NEW MATERIAL TECH CO LTD
Filing Date
2025-05-27
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

SMA asphalt mixtures are prone to blockage at the discharge port after processing, and once solidified, they can damage the mixing tank.

Method used

A mixing tank comprising a tank body and a dredging mechanism is designed. The tank body is equipped with a mixing and stirring tank and a mixing tank discharge support. The dredging mechanism consists of a worm gear driven by a servo motor, a worm wheel, and a dredging rod. The servo motor drives the worm gear to rotate, which in turn drives the worm wheel and the dredging rod to dredge the discharge port and prevent blockage.

Benefits of technology

It effectively prevents blockage at the discharge port, ensures smooth discharge, avoids damage to the mixing tank, and facilitates transportation and maintenance.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224173157U_ABST
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Abstract

The utility model relates to the technical field of SMA asphalt, in particular to a mixing tank for processing an SMA asphalt mixture, which comprises a tank body, a mixing tank, a stirring tank, a mixing tank discharging support and a mixing tank discharging support, the dredging mechanism comprises a protective shell, and the protective shell is fixedly connected to the surface of the discharging support of the mixing tank. The mixing tank discharging support is connected with the protective shell, the servo motor is connected with the worm, the worm can be driven to rotate by starting the servo motor, then the worm and the worm wheel are connected, the fixing shaft is connected with the worm wheel, the worm wheel can synchronously rotate along with rotation of the worm, and the worm wheel is connected with the dredging rod, so that the dredging effect is achieved. And the dredging rod is connected with the mixing tank discharging bracket, so that the dredging rod can synchronously rotate along with the rotation of the worm wheel, the discharging hole of the mixing tank discharging bracket is dredged, and the effect of preventing the mixing tank discharging bracket from being blocked during discharging can be achieved.
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Description

Technical Field

[0001] This utility model relates to the field of SMA asphalt technology, specifically to a mixing tank for processing SMA asphalt mixtures. Background Technology

[0002] SMA asphalt is a dense asphalt mixture formed by filling the gaps in the discontinuously graded coarse aggregate skeleton with asphalt mastic, fiber stabilizer, mineral powder, and a small amount of fine aggregate. After being rolled and formed, this material has technical advantages such as rutting resistance, crack resistance, skid resistance, impermeability, and high durability.

[0003] SMA asphalt is mainly used in the construction of roads requiring high load-bearing capacity and long service life, such as high-grade highways and urban arterial roads. It is composed of high-quality crushed stone aggregate, fine mineral powder, and a specific proportion of asphalt mastic. This unique structure allows SMA asphalt pavement to withstand repeated compaction by heavy traffic while maintaining road surface smoothness and driving comfort. Processing SMA asphalt requires the use of mixing tanks. However, when using existing mixing tanks, the discharge port is prone to blockage when the SMA asphalt mixture is discharged after processing. Once the SMA asphalt solidifies, it not only becomes difficult to discharge but also damages the mixing tank. Utility Model Content

[0004] The purpose of this utility model is to provide a mixing tank for processing SMA asphalt mixtures, so as to solve the problem that when the mixing tank mentioned in the background art is used, the discharge port is easily blocked when the SMA asphalt mixture is discharged after processing. Once the SMA asphalt solidifies, it is not only difficult to discharge, but it will also damage the mixing tank.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a mixing tank for processing SMA asphalt mixtures, comprising:

[0006] The tank body includes a mixing tank, and the surface of the mixing tank is provided with a mixing tank discharge support;

[0007] A dredging mechanism includes a protective housing, which is fixedly connected to the surface of the discharge support of the mixing tank. A servo motor is installed inside the protective housing, and a worm gear is rotatably connected to the surface of the servo motor. A fixed shaft is fixedly connected inside the protective housing, and a worm wheel is meshed with the surface of the worm gear. A dredging rod is fixedly connected to the surface of the worm wheel.

[0008] Preferably, the worm gear is internally rotatably connected to the servo motor and the protective housing.

[0009] Preferably, the worm gear is rotatably connected to the surface of the worm and the fixed shaft.

[0010] Preferably, the unblocking rod is internally rotatably connected to the mixing tank discharge bracket via a worm gear.

[0011] Preferably, the installation mechanism includes a sealing ring fixedly connected to the surface of the mixing tank, a connecting plate fixedly connected to the surface of the mixing tank discharge bracket, a connecting cylinder fixedly connected to the surface of the connecting plate, an installation handle movably connected to the surface of the connecting cylinder, a fixing rod fixedly connected to the surface of the installation handle, and a damping spring wound around the surface of the fixing rod.

[0012] Preferably, the sealing ring is connected by an internal abutment between the mixing tank and the mixing tank discharge bracket, and the connecting plates are evenly distributed in three groups on the surface of the mixing tank discharge bracket.

[0013] Preferably, the fixed rod is movably connected to the surface of the mounting handle and the connecting cylinder, the two ends of the damping spring are fixedly connected to the inside of the connecting cylinder and the surface of the fixed rod, and the fixed rod is connected to the surface of the mixing tank by the damping spring.

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

[0015] 1. By connecting the mixing tank discharge bracket and the protective shell, and the servo motor and the worm gear, the servo motor can be started to drive the worm gear to rotate. Then, by connecting the worm gear and the worm wheel, and the fixed shaft and the worm wheel, the worm wheel can rotate synchronously with the rotation of the worm gear. Furthermore, by connecting the worm wheel and the unblocking rod, and the unblocking rod and the mixing tank discharge bracket, the unblocking rod can rotate synchronously with the rotation of the worm wheel. This unblocks the discharge port of the mixing tank discharge bracket, thus preventing blockage of the discharge from the mixing tank discharge bracket.

[0016] 2. By connecting the installation handle and the fixed rod, and connecting the connecting plate and the connecting cylinder, the movable installation handle can move the fixed rod away from the surface of the mixing tank discharge bracket. The damping spring follows the deformation. Then, by connecting the mixing tank and the sealing ring, and connecting the mixing tank and the mixing tank discharge bracket, the mixing tank can be installed on the surface of the mixing tank discharge bracket. The sealing ring improves the sealing performance of the connection between the two. Then, by connecting the fixed rod and the damping spring, and connecting the connecting cylinder and the fixed rod, the damping spring returns to its original shape, causing the fixed rod to be inserted into the surface of the mixing tank and the mixing tank discharge bracket, fixing the installation position of the two. Conversely, they can be disassembled, achieving the effect of facilitating transportation and maintenance. Attached Figure Description

[0017] Figure 1 This is a three-dimensional front view of the structure of this utility model;

[0018] Figure 2 This is a side-view perspective view of the structure of this utility model;

[0019] Figure 3 This is a three-dimensional partial sectional view of the connection structure between the mixing tank discharge support and the protective shell of this utility model;

[0020] Figure 4 This is a three-dimensional partial sectional view of the connection structure between the protective shell and the worm gear of this utility model;

[0021] Figure 5 This is a partial three-dimensional sectional view of the connection structure between the mixing tank and the discharge support of the mixing tank of this utility model.

[0022] In the diagram: 1. Mixing tank; 11. Mixing tank discharge bracket; 2. Protective shell; 21. Servo motor; 22. Worm gear; 23. Fixed shaft; 24. Worm wheel; 25. Unblocking rod; 3. Sealing ring; 31. Connecting plate; 32. Connecting cylinder; 33. Installation handle; 34. Fixed insertion rod; 35. Damping spring. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-5 One embodiment provided by this utility model:

[0025] A mixing tank for processing SMA asphalt mixtures, comprising:

[0026] The tank body includes a mixing tank 1. The surface of the mixing tank 1 is provided with a mixing tank discharge bracket 11. Both the mixing tank 1 and the mixing tank discharge bracket 11 are existing products and are not considered as technical protection points of this application. They will not be described in detail here.

[0027] The unblocking mechanism includes a protective housing 2, which is fixedly connected to the surface of the mixing tank discharge bracket 11 and is used to house a servo motor 21. The servo motor 21 is installed inside the protective housing 2 and is used to drive the worm gear 22 to rotate. The worm gear 22 is rotatably connected to the surface of the servo motor 21 and is used to drive the worm wheel 24 to rotate. A fixed shaft 23 is fixedly connected inside the protective housing 2 and is used to connect the worm wheel 24. The worm gear 22 is meshed with the worm wheel 24 and is used to connect the unblocking rod 25. The unblocking rod 25 is fixedly connected to the surface of the worm wheel 24 and is used to unblock the discharge port of the mixing tank discharge bracket 11 by rotating itself.

[0028] Furthermore, the worm gear 22 is internally rotatably connected to the protective housing 2 via the servo motor 21. When the servo motor 21 is started, it can drive the worm gear 22 to rotate, thereby driving the worm wheel 24 to rotate synchronously.

[0029] Furthermore, the worm wheel 24 is rotatably connected to the surface of the worm 22 and the fixed shaft 23. The worm wheel 24 rotates along with the rotation of the worm 22, thereby driving the unblocking rod 25 to rotate synchronously.

[0030] Furthermore, the unblocking rod 25 is internally rotatably connected to the mixing tank discharge bracket 11 via the worm gear 24. The unblocking rod 25 rotates along with the worm gear 24, thereby unblocking the discharge port of the mixing tank discharge bracket 11 and preventing the discharge port of SMA asphalt from becoming blocked during discharge.

[0031] Furthermore, the installation mechanism includes a sealing ring 3, which is fixedly connected to the surface of the mixing tank 1 to improve the sealing performance of the connection between the mixing tank 1 and the mixing tank discharge bracket 11. A connecting plate 31 is fixedly connected to the surface of the mixing tank discharge bracket 11 for connecting a connecting cylinder 32. A connecting cylinder 32 is fixedly connected to the surface of the connecting plate 31 for connecting a fixing rod 34 and a damping spring 35. An installation handle 33 is movably connected to the surface of the connecting cylinder 32 for moving the fixing rod 34. A fixing rod 34 is fixedly connected to the surface of the installation handle 33 for inserting and fixing the installation position of the mixing tank 1 and the mixing tank discharge bracket 11. A damping spring 35 is wound around the surface of the fixing rod 34 for driving the fixing rod 34 to insert into the surface of the mixing tank 1 and the mixing tank discharge bracket 11.

[0032] Furthermore, the sealing ring 3 is connected by the internal abutment of the mixing tank 1 and the mixing tank discharge bracket 11. The connecting plates 31 are evenly distributed in three groups on the surface of the mixing tank discharge bracket 11. The mixing tank 1 is installed on the surface of the mixing tank discharge bracket 11. The sealing ring 3 improves the sealing performance of the connection between the two. The three sets of connecting plates 31 are used to connect three sets of fixing rods 34, thereby improving the tightness of the installation of the mixing tank 1 and the mixing tank discharge bracket 11.

[0033] Furthermore, the fixed rod 34 is movably connected to the surface of the connecting tube 32 via the mounting handle 33. The two ends of the damping spring 35 are fixedly connected to the inside of the connecting tube 32 and the surface of the fixed rod 34. The fixed rod 34 is inserted into the surface of the mixing tank 1 via the damping spring 35. Moving the mounting handle 33 can drive the fixed rod 34 away from the surface of the mixing tank discharge bracket 11. The damping spring 35 deforms accordingly. Then, the mixing tank 1 is installed on the surface of the mixing tank discharge bracket 11. The restriction on the mounting handle 33 is released. The damping spring 35 returns to its original shape and drives the fixed rod 34 to insert into the surface of the mixing tank 1 and the mixing tank discharge bracket 11, thereby fixing the position of both.

[0034] Working principle: When using the mixing tank 1, the movable installation handle 33 can drive the fixed insertion rod 34 away from the surface of the mixing tank discharge bracket 11. The damping spring 35 follows the deformation and then the mixing tank 1 is installed on the surface of the mixing tank discharge bracket 11. The sealing ring 3 improves the sealing of the connection between the two. The restriction on the installation handle 33 is released, and the damping spring 35 returns to its original shape, driving the fixed insertion rod 34 to be inserted into the surface of the mixing tank 1 and the mixing tank discharge bracket 11, thereby fixing their positions. Then, the servo motor 21 can be started to drive the worm gear 22 to rotate, thereby driving the worm wheel 24 and the unblocking rod 25 to rotate synchronously on the surface of the fixed shaft 23, thereby unblocking the discharge port of the mixing tank discharge bracket 11.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A mixing tank for processing SMA asphalt mixtures, characterized in that, include: The tank body includes a mixing tank (1), and the surface of the mixing tank (1) is provided with a mixing tank discharge support (11); The unblocking mechanism includes a protective shell (2), which is fixedly connected to the surface of the mixing tank discharge bracket (11). A servo motor (21) is installed inside the protective shell (2). A worm gear (22) is rotatably connected to the surface of the servo motor (21). A fixed shaft (23) is fixedly connected inside the protective shell (2). A worm wheel (24) is meshed with the surface of the worm gear (22). An unblocking rod (25) is fixedly connected to the surface of the worm wheel (24).

2. The mixing tank for processing SMA asphalt mixtures according to claim 1, characterized in that: The worm gear (22) is internally rotatably connected to the servo motor (21) and the protective housing (2).

3. The mixing tank for processing SMA asphalt mixtures according to claim 1, characterized in that: The worm gear (24) is rotatably connected to the surface of the worm (22) and the fixed shaft (23).

4. A mixing tank for processing SMA asphalt mixtures according to claim 1, characterized in that: The unblocking rod (25) is internally rotatably connected to the mixing tank discharge bracket (11) via a worm gear (24).

5. A mixing tank for processing SMA asphalt mixtures according to claim 1, characterized in that: The installation mechanism includes a sealing ring (3), which is fixedly connected to the surface of the mixing tank (1). A connecting plate (31) is fixedly connected to the surface of the mixing tank discharge bracket (11). A connecting cylinder (32) is fixedly connected to the surface of the connecting plate (31). An installation handle (33) is movably connected to the surface of the connecting cylinder (32). A fixing rod (34) is fixedly connected to the surface of the installation handle (33). A damping spring (35) is wound around the surface of the fixing rod (34).

6. A mixing tank for processing SMA asphalt mixtures according to claim 5, characterized in that: The sealing ring (3) is connected by the internal abutment of the mixing tank (1) and the mixing tank discharge bracket (11), and the connecting plate (31) is evenly distributed in three groups on the surface of the mixing tank discharge bracket (11).

7. A mixing tank for processing SMA asphalt mixtures according to claim 5, characterized in that: The fixed rod (34) is movably connected to the surface of the mounting handle (33) and the connecting cylinder (32). The two ends of the damping spring (35) are fixedly connected to the inside of the connecting cylinder (32) and the surface of the fixed rod (34). The fixed rod (34) is connected to the surface of the mixing tank (1) by the damping spring (35).