Stirring barrel
By designing a ring rotor of the motor as the stator housing and coupling it with the permanent magnet in the mixing tank, combined with mounting components and ball bearings, the problems of non-compact motor structure and low heat dissipation efficiency are solved, achieving high power density and stable mixing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU SHIBIDA ELECTRICAL TECHNOLOGY CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-05-12
AI Technical Summary
Traditional mixing tanks have motor structures that are not compact enough within a limited space, resulting in low heat dissipation efficiency and difficulty in achieving a balance between high power output and stable mixing.
Design a mixing tank where the annular rotor of the motor serves as the stator shell. The annular rotor, made of permanent magnet material, is coupled with the stator magnetic field. The mounting components provide central limiting support, and ball bearings are used to reduce friction, achieving a compact motor structure and efficient heat dissipation.
Increasing motor power density within a limited space ensures mixing stability and reliability, extends motor life, and improves mixing efficiency and quality.
Smart Images
Figure CN224221139U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mixing equipment technology, and in particular to a mixing tank. Background Technology
[0002] As a core device for material mixing and processing, mixing tanks are widely used in production processes in chemical, food, and pharmaceutical industries. With the increasing demand for compact and efficient industrial equipment, traditional mixing tanks are gradually revealing limitations in terms of motor layout, heat dissipation performance, and structural integration. Achieving a balance between high power output and stable mixing within a limited space has become a critical technical challenge requiring optimization. Therefore, a new type of mixing tank is urgently needed to solve these problems. Utility Model Content
[0003] To overcome the shortcomings of the prior art, this utility model provides a mixing tank that solves the technical problems of insufficient motor structure and low heat dissipation efficiency in a limited space.
[0004] To achieve the above objectives, this utility model is implemented through the following technical solution:
[0005] A mixing tank, comprising:
[0006] A container having a cavity inside and a feeding port on the container, the feeding port being connected to the cavity;
[0007] A stirring component is disposed within a cavity and is used to stir the mixture within the cavity.
[0008] Mounting assembly, the mounting assembly being used to centrally position the stirring component within the cavity;
[0009] The motor is located inside the cavity and is coaxially connected to the stirring component. The motor includes: a mounting shaft, an annular rotor, a stator, and a pair of covers. The mounting shaft is installed on the top of the cavity, the stator is sleeved on the mounting shaft, the annular rotor is sleeved on the outside of the stator, and the pair of covers are respectively installed on the upper and lower ends of the annular rotor. The cover located at the lower end of the annular rotor is coaxially connected to the stirring component.
[0010] Based on the above structure, the principle of the mixing tank is as follows: First, the material to be mixed is fed into the cavity through the feeding port on the container. The mounting assembly is used to centrally position the mixing component within the cavity, ensuring that the mixing component can uniformly mix the material in the cavity during the mixing process, thereby improving the mixing efficiency and quality. The stator and annular rotor of the motor generate power through electromagnetic induction, causing the annular rotor to rotate around the stator. Since the motor and the mixing component are coaxially connected, a pair of covers are respectively installed on the upper and lower ends of the annular rotor. The covers drive the mixing component to rotate together, mixing the material in the cavity. The annular rotor is sleeved on the outside of the stator and serves as the motor housing, making the motor structure compact. This design utilizes the internal space of the motor, achieving a large electromagnetic conversion area within a limited space, thus increasing the power density of the motor. This allows the motor to output greater power in a smaller volume, meeting the power requirements of the mixing tank. Furthermore, during motor operation, the heat generated by the motor can be dissipated to the surrounding environment in a timely manner. This design improves the motor's heat dissipation efficiency, preventing performance degradation or damage due to overheating, extending the motor's service life, and ensuring the stability and reliability of the motor during long-term operation.
[0011] Furthermore, in one type of mixing tank of this application, the stator includes an iron core located on the outer wall of the stator, and the annular rotor is made of permanent magnet material and is sleeved on the outside of the iron core. As a preferred embodiment of this application, in this type of mixing tank, the annular rotor is made of permanent magnet material. When the stator iron core is energized and generates a magnetic field, the magnetic field of the permanent magnet interacts with the stator magnetic field, driving the annular rotor to rotate around the stator. The annular rotor is sleeved on the outside of the iron core, allowing the annular rotor to fully couple with the magnetic field generated by the iron core, maximizing the utilization of magnetic field energy and improving the torque output and operating efficiency of the motor.
[0012] Furthermore, in one mixing tank of this application, a pair of first bearings are sleeved on the mounting shaft, and the pair of first bearings are respectively mounted on a pair of cover bodies, with the stator located between the pair of first bearings. As a preferred embodiment of this application, in the mixing tank of this application, during motor operation, the pair of first bearings provides reliable support for the mounting shaft and cover bodies, ensuring the stability and reliability of motor operation; the pair of first bearings reduces the frictional resistance between the mounting shaft and the cover bodies, allowing the annular rotor to rotate more smoothly, improving motor efficiency, reducing energy loss, reducing heat generated by friction, and contributing to motor heat dissipation and extending its service life.
[0013] Furthermore, in this application, a mixing tank includes a tank body with an opening at the top and a top cover. The top cover is positioned over the opening at the top of the tank body, and the feeding port is located on the top cover. As a preferred embodiment of this application, the mixing tank has a top cover positioned over the opening at the top of the tank body, which serves to seal the cavity. The feeding port on the top cover facilitates the addition of materials.
[0014] Furthermore, in one type of mixing tank of this application, the upper edge of the tank body is provided with a notch, and the side wall of the top cover is provided with a protrusion corresponding to the notch, the notch being used to accommodate the protrusion. As a preferred embodiment of this application, in one type of mixing tank of this application, the notch and the protrusion cooperate with each other to provide positioning for the top cover to be installed on the tank body. When installing the top cover, the operator can quickly and accurately place the top cover in a preset position by aligning the protrusion with the notch. Moreover, when the protrusion is embedded in the notch, the two form a mechanical limiting structure, preventing the motor from driving the top cover to rotate relative to the tank body due to the failure of the limiting mechanism.
[0015] Furthermore, in one type of mixing tank of this application, each of the pair of covers has an annular stop portion on the side near the stator, which is adapted to the inner diameter of the annular rotor. When the pair of covers are respectively placed on the upper and lower ends of the annular rotor, the annular stop portion fits against the inner surface of the annular rotor in the radial direction of the mounting axis. As a preferred embodiment of this application, when the covers are installed on the upper and lower ends of the annular rotor, the annular stop portion can accurately embed into the inner side of the annular rotor, reducing the number of times the cover position needs to be adjusted during installation, reducing assembly difficulty, and improving assembly efficiency; during motor operation, it plays a positioning role, preventing the cover from radially shifting and ensuring stable motor operation.
[0016] Furthermore, in one mixing tank of this application, the mixing component includes: a mixing shaft and a plurality of mixing blades. The mixing shaft is centrally located within the cavity. The mixing blades are evenly spaced along the axial and circumferential directions of the mixing shaft. A scraper is provided between adjacent pairs of upper and lower mixing blades, and both ends of the scraper are connected to the ends of the adjacent pairs of upper and lower mixing blades away from the mixing shaft. As a preferred embodiment of this application, in this mixing tank, the mixing blades are used to stir the material in the cavity in all directions, effectively improving the mixing uniformity of the material; when the mixing component rotates, the scraper is used to scrape off the material adhering to the inner wall of the tank, preventing the material from accumulating on the inner wall of the tank.
[0017] Furthermore, in a mixing tank of this application, the mounting assembly includes an upper seat and a lower seat, both disposed within a cavity. The upper and lower seats are coaxially sleeved on a stirring shaft. A set of mounting rods is provided on the outer wall of the upper seat, and the set of mounting rods is evenly spaced along the circumference of the stirring shaft. The end of each mounting rod away from the upper seat extends radially along the stirring shaft to the side wall of the cavity. The lower seat is located at the bottom of the cavity, and the stirring component is located between the upper and lower seats. As a preferred embodiment of this application, in a mixing tank of this application, the upper and lower seats work together to ensure that the stirring shaft is centered within the cavity and jointly bears the axial and radial forces experienced by the stirring shaft during rotation, enabling the stirring shaft to operate stably. The set of mounting rods is used to connect the upper seat to the side wall of the cavity to improve the structural stability of the entire mixing system.
[0018] Furthermore, in one type of mixing tank of this application, a second bearing is provided at the connection between the upper seat, the lower seat, and the mixing shaft. The second bearing is sleeved on the mixing shaft and installed on the corresponding upper and lower seats. As a preferred embodiment of this application, in one type of mixing tank of this application, the second bearing is used to reduce the frictional resistance between the mixing shaft and the upper and lower seats, reduce wear between components, and extend service life.
[0019] Furthermore, a mixing tank according to this application also includes: a mounting plate, which is mounted on a top cover; a limiting notch is provided at the end of the mounting shaft away from the stator; and a mounting hole corresponding to the limiting notch is provided on the mounting plate. When the top end of the mounting shaft is located in the mounting hole, the mounting hole and the limiting notch cooperate to limit the mounting shaft in the circumferential direction. As a preferred embodiment of this application, in a mixing tank of this application, during motor operation, the torque of the motor is transmitted to the mixing component through the mounting shaft. The limiting notch on the mounting shaft cooperates with the mounting hole on the mounting plate to limit the mounting shaft in the circumferential direction, preventing the mounting shaft from rotating in the circumferential direction and ensuring that the power of the motor can be transmitted to the mixing component.
[0020] As can be seen from the above technical solution, this utility model has the following beneficial effects:
[0021] The purpose of this utility model is to provide a mixing tank that uses the annular rotor of the motor as its outer shell, which is fitted onto the outside of the stator and coaxially connected with the mixing components. This achieves a compact motor structure and integrated functions, reducing the motor size while improving power density and heat dissipation efficiency. The magnetic field coupling design between the stator and the annular rotor, as well as the centrally positioned support of the mounting components, further ensure mixing stability and operational reliability. Attached Figure Description
[0022] Figure 1 This is a three-dimensional structural schematic diagram of a stirring tank according to an embodiment of this application;
[0023] Figure 2 This is a cross-sectional view of a mixing tank according to an embodiment of this application;
[0024] Figure 3 for Figure 2 A magnified view of a portion of area A in the center circle;
[0025] Figure 4 This is an exploded view of a mixing tank according to an embodiment of this application.
[0026] In the diagram: 1-Container; 10-Cavity; 11-Feeding port; 12-Barrel body; 120-Notch; 13-Top cover; 131-Protrusion; 2-Agitator component; 21-Agitator shaft; 22-Agitator blade; 23-Scraper; 3-Mounting assembly; 31-Upper seat; 32-Lower seat; 33-Mounting rod; 4-Motor; 41-Mounting shaft; 410-Limiting notch; 42-Annular rotor; 43-Stator; 431-Iron core; 44-Cover; 441-Annular stop; 5-First bearing; 6-Second bearing; 7-Mounting plate; 70-Mounting hole. Detailed Implementation
[0027] like Figure 1 , 2 As shown in Figures 3 and 4, a mixing tank includes:
[0028] Container 1, the container 1 having a cavity 10 inside, and a feeding port 11 on the container 1, the feeding port 11 being connected to the cavity 10;
[0029] A stirring component 2 is disposed within the cavity 10 and is used to stir the mixture within the cavity 10.
[0030] Mounting component 3 is used to centrally position the stirring component 2 within the cavity 10;
[0031] The motor 4 is located inside the cavity 10 and is coaxially connected to the stirring component 2. The motor 4 includes: a mounting shaft 41, an annular rotor 42, a stator 43, and a pair of covers 44. The mounting shaft 41 is mounted on the top of the cavity 10. The stator 43 is sleeved on the mounting shaft 41. The annular rotor 42 is sleeved on the outside of the stator 43. The pair of covers 44 are respectively installed on the upper and lower ends of the annular rotor 42. The cover 44 located at the lower end of the annular rotor 42 is coaxially connected to the stirring component 2.
[0032] Based on the above structure, the principle of the mixing tank is as follows: First, the material to be mixed is put into the cavity 10 through the feeding port 11 on the container 1. The mounting assembly 3 is used to centrally position the mixing component 2 in the cavity 10, ensuring that the mixing component 2 can evenly mix the mixture in the cavity 10 during the mixing process, thereby improving the mixing efficiency and quality. The stator 43 and the annular rotor 42 of the motor 4 generate power through the principle of electromagnetic induction, causing the annular rotor 42 to rotate around the stator 43. Since the motor 4 and the mixing component 2 are coaxially connected, a pair of covers 44 are respectively installed on the upper and lower ends of the annular rotor 42. The covers 44 drive the mixing component 2 to rotate together, thus mixing the mixture in the cavity. The material within 10 is stirred; the annular rotor 42 of the motor 4 is sleeved on the outside of the stator 43 and serves as the motor housing, making the motor structure compact. This design utilizes the internal space of the motor, achieving a large electromagnetic conversion area within a limited space, improving the power density of the motor, and enabling the motor to output a large amount of power in a small volume, meeting the power requirements of the stirring tank. Furthermore, during motor operation, the heat generated by the motor can be dissipated to the surrounding environment in a timely manner. This design improves the heat dissipation efficiency of the motor, avoids performance degradation or damage due to overheating, extends the service life of the motor, and ensures the stability and reliability of the motor during long-term operation.
[0033] In this embodiment, the stator 43 includes an iron core 431, which is located on the outer wall of the stator 43. The annular rotor 42, made of permanent magnet material, is sleeved on the outside of the iron core 431. When the iron core 431 of the stator 43 is energized and generates a magnetic field, the magnetic field of the permanent magnet interacts with the stator magnetic field, driving the annular rotor 42 to rotate around the stator 43. The annular rotor 42, sleeved on the outside of the iron core 431, allows for full coupling between the annular rotor 42 and the magnetic field generated by the iron core 431, maximizing the utilization of magnetic field energy and improving the motor's torque output and operating efficiency.
[0034] In this embodiment, a pair of first bearings 5 are sleeved on the mounting shaft 41, and the pair of first bearings 5 are respectively mounted on a pair of covers 44. The stator 43 is located between the pair of first bearings 5. During motor operation, the pair of first bearings 5 can provide reliable support for the mounting shaft 41 and the covers 44, ensuring the stability and reliability of motor operation. The pair of first bearings 5 reduces the frictional resistance between the mounting shaft 41 and the covers 44, allowing the annular rotor 42 to rotate more smoothly, which can improve motor efficiency, reduce energy loss, reduce heat generated by friction, help dissipate heat from the motor, and extend its service life. The first bearings 5 are ball bearings.
[0035] In this embodiment, the container 1 includes a barrel body 12 with an opening at the top and a top cover 13. The top cover 13 is placed over the opening at the top of the barrel body 12, and the feeding port 11 is located on the top cover 13. The top cover 13, placed over the opening at the top of the barrel body 12, serves to seal the cavity 10, and the feeding port 11 on the top cover 13 facilitates the feeding of materials.
[0036] In this embodiment, the upper edge of the barrel 12 is provided with a notch 120, and the side wall of the top cover 13 is provided with a protrusion 131 corresponding to the notch 120. The notch 120 is used to accommodate the protrusion 131. The notch 120 and the protrusion 131 cooperate with each other to provide positioning for the top cover 13 to be installed on the barrel 12. When installing the top cover 13, the operator can quickly and accurately place the top cover 13 in a preset position by aligning the protrusion 131 with the notch 120. Furthermore, when the protrusion 131 is embedded in the notch 120, the two form a mechanical limiting structure to prevent the motor from driving the top cover 13 to rotate relative to the barrel 12 due to limiting failure. The upper edge of the barrel 12 is provided with two notches 120, which are arranged opposite to each other on the barrel 12. Correspondingly, there are two protrusions 131.
[0037] In this embodiment, each of the pair of covers 44 has an annular stop 441 on one side near the stator 43, which is adapted to the inner diameter of the annular rotor 42. When the pair of covers 44 are respectively placed on the upper and lower ends of the annular rotor 42, the annular stop 441 and the inner surface of the annular rotor 42 are in radial contact with each other on the mounting shaft 41. When the covers 44 are installed on the upper and lower ends of the annular rotor 42, the annular stop 441 can be accurately embedded in the inner side of the annular rotor 42, reducing the number of times the position of the covers 44 needs to be adjusted during installation, reducing assembly difficulty, and improving assembly efficiency; during motor operation, it plays a positioning role, preventing the covers 44 from radially shifting and ensuring stable motor operation.
[0038] In this embodiment, the stirring component 2 includes a stirring shaft 21 and a plurality of stirring blades 22. The stirring shaft 21 is centrally located within the cavity 10. The stirring blades 22 are evenly spaced along the axial and circumferential directions of the stirring shaft 21. A scraper 23 is provided between adjacent pairs of stirring blades 22, and both ends of the scraper 23 are connected to the ends of the adjacent pairs of stirring blades 22 away from the stirring shaft 21. The stirring blades 22 are used to stir the material in the cavity 10 in all directions, effectively improving the mixing uniformity of the material. When the stirring component 2 rotates, the scraper 23 is used to scrape off the material adhering to the inner wall of the barrel 12, preventing the material from accumulating on the inner wall of the barrel 12. Two sets of stirring blades 22 are provided axially along the stirring shaft 21, with three blades in each set. Correspondingly, there are also three scrapers 23.
[0039] In this embodiment, the mounting assembly 3 includes an upper seat 31 and a lower seat 32, both of which are disposed within the cavity 10. The upper seat 31 and lower seat 32 are coaxially mounted on the stirring shaft 21. A set of mounting rods 33 is provided on the outer wall of the upper seat 31, and these mounting rods 33 are evenly spaced along the circumference of the stirring shaft 21. The end of each mounting rod 33 away from the upper seat 31 extends radially along the stirring shaft 21 to the side wall of the cavity 10. The lower seat 32 is located at the bottom of the cavity 10. The stirring component 2 is located between the upper seat 31 and the lower seat 32. The upper seat 31 and lower seat 32 work together to ensure that the stirring shaft 21 is centered within the cavity 10 and jointly bears the axial and radial forces experienced by the stirring shaft 21 during rotation, enabling the stirring shaft 21 to operate stably. The set of mounting rods 33 connects the upper seat 31 to the side wall of the cavity 10, thereby improving the structural stability of the entire stirring system. The number of mounting rods 33 in the set is three.
[0040] In this embodiment, a second bearing 6 is provided at the connection between the upper seat 31, the lower seat 32 and the stirring shaft 21. The second bearing 6 is sleeved on the stirring shaft 21 and mounted on the corresponding upper seat 31 and lower seat 32. The second bearing 6 is used to reduce the frictional resistance between the stirring shaft 21 and the upper seat 31 and lower seat 32, reduce wear between components, and extend service life. The second bearing 6 is a ball bearing.
[0041] In this embodiment, the device further includes a mounting plate 7, which is mounted on the top cover 13. A limiting notch 410 is provided at the end of the mounting shaft 41 away from the stator 43. The mounting plate 7 has mounting holes 70 corresponding to the limiting notch 410. When the top end of the mounting shaft 41 is located within the mounting hole 70, the mounting hole 70 cooperates with the limiting notch 410 to limit the mounting shaft 41 in the circumferential direction. During motor operation, the motor torque is transmitted to the stirring component 2 via the mounting shaft 41. The limiting notch 410 on the mounting shaft 41 cooperates with the mounting hole 70 on the mounting plate 7 to limit the mounting shaft 41 in the circumferential direction, preventing rotation of the mounting shaft 41 and ensuring that the motor's power can be transmitted to the stirring component 2. The mounting plate 7 is detachably mounted on the top cover 13 using a set of screws. A mounting nut is screwed onto the end of the mounting shaft 41 away from the stator 43. When the top end of the mounting shaft 41 is located within the mounting hole 70, the mounting nut is screwed onto the side of the mounting plate 7 away from the top cover 13.
[0042] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on the explanation herein, those skilled in the art can conceive of other specific embodiments of this utility model without creative effort, and these embodiments will all fall within the scope of protection of this utility model.
Claims
1. A mixing tank, characterized in that: include: The container (1) has a cavity (10) inside and a feeding port (11) on the container (1), which is connected to the cavity (10); A stirring component (2) is disposed in a cavity (10) and is used to stir the mixture in the cavity (10); Mounting assembly (3), which is used to centrally position the stirring component (2) within the cavity (10); The motor (4) is located inside the cavity (10) and is coaxially connected to the stirring component (2). The motor (4) includes: a mounting shaft (41), an annular rotor (42), a stator (43), and a pair of covers (44). The mounting shaft (41) is installed on the top of the cavity (10). The stator (43) is sleeved on the mounting shaft (41). The annular rotor (42) is sleeved on the outside of the stator (43). A pair of covers (44) are respectively installed on the upper and lower ends of the annular rotor (42). The cover (44) located at the lower end of the annular rotor (42) is coaxially connected to the stirring component (2).
2. The mixing tank according to claim 1, characterized in that: The stator (43) includes an iron core (431) located on the outer side wall of the stator (43), and the annular rotor (42) is made of permanent magnet material and is sleeved on the outside of the iron core (431).
3. A mixing tank according to claim 1, characterized in that: A pair of first bearings (5) are fitted on the mounting shaft (41), and the pair of first bearings (5) are respectively mounted on a pair of covers (44). The stator (43) is located between the pair of first bearings (5).
4. A mixing tank according to claim 1, characterized in that: The container (1) includes: a barrel (12) with an opening at the top and a top cover (13), the top cover (13) covering the opening at the top of the barrel (12), and the feeding port (11) located on the top cover (13).
5. A mixing tank according to claim 4, characterized in that: The upper edge of the barrel (12) is provided with a notch (120), and the side wall of the top cover (13) is provided with a protrusion (131) corresponding to the notch (120). The notch (120) is used to accommodate the protrusion (131).
6. A mixing tank according to claim 1, characterized in that: Each of the two covers (44) has an annular stop (441) on one side near the stator (43) that is adapted to the inner diameter of the annular rotor (42). When the two covers (44) are respectively placed on the upper and lower ends of the annular rotor (42), the annular stop (441) and the inner side of the annular rotor (42) are in radial contact with the mounting shaft (41).
7. A mixing tank according to claim 1, characterized in that: The stirring component (2) includes: a stirring shaft (21) and a plurality of stirring blades (22). The stirring shaft (21) is centrally located in the cavity (10). The stirring blades (22) are evenly spaced along the axial and circumferential directions of the stirring shaft (21). A scraper (23) is provided between a pair of adjacent stirring blades (22) at the top and bottom. The two ends of the scraper (23) are respectively connected to the ends of the pair of adjacent stirring blades (22) at the top and bottom away from the stirring shaft (21).
8. A mixing tank according to claim 7, characterized in that: The mounting assembly (3) includes an upper seat (31) and a lower seat (32). The upper seat (31) and the lower seat (32) are both located in the cavity (10). The upper seat (31) and the lower seat (32) are coaxially mounted on the stirring shaft (21). A set of mounting rods (33) is provided on the outer wall of the upper seat (31). The set of mounting rods (33) are evenly spaced along the circumference of the stirring shaft (21). The end of the mounting rod (33) away from the upper seat (31) extends radially along the stirring shaft (21) to the side wall of the cavity (10). The lower seat (32) is located at the bottom of the cavity (10). The stirring component (2) is located between the upper seat (31) and the lower seat (32).
9. A mixing tank according to claim 8, characterized in that: The upper seat (31), lower seat (32) and stirring shaft (21) are each provided with a second bearing (6). The second bearing (6) is sleeved on the stirring shaft (21) and installed on the corresponding upper seat (31) and lower seat (32).
10. A mixing tank according to claim 4, characterized in that: Also includes: Mounting plate (7), which is mounted on top cover (13), has a limiting notch (410) at one end of the mounting shaft (41) away from the stator (43), and a mounting hole (70) corresponding to the limiting notch (410) on the mounting plate (7). When the top end of the mounting shaft (41) is located in the mounting hole (70), the mounting hole (70) cooperates with the limiting notch (410) to limit the mounting shaft (41) in the circumferential direction.