Insulating paint production device with bidirectional countercurrent stirring function
By designing a bidirectional countercurrent mixing device, the problem of uneven mixing in unidirectional mixing equipment is solved, and efficient mixing of high-viscosity coatings, especially uniform mixing of insulating varnish containing glass fiber/ceramic microspheres, is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN ZHANYUE ELECTRONICS TECH CO LTD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-04-21
AI Technical Summary
Existing unidirectional stirring equipment is unable to fully disperse the fillers in high-viscosity insulating coatings, resulting in uneven mixing and affecting the consistency of dielectric properties.
The device employs a bidirectional countercurrent stirring mechanism, which achieves triple action through the reverse rotation of the main and auxiliary stirring shafts and the torque distribution of the planetary gear set, thereby improving shear force and stirring efficiency.
It improves the mixing uniformity of coatings, making it particularly suitable for high-viscosity coatings, especially insulating varnishes containing glass fiber/ceramic microspheres. It also reduces the number of transmission parts, ensuring smooth reverse movement.
Smart Images

Figure CN224141957U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coating production technology, specifically to a bidirectional countercurrent stirring insulating coating production device. Background Technology
[0002] In the modern production process of insulating coatings, it is necessary to fully mix the various components of the coating. At present, the mixing equipment often adopts unidirectional mixing equipment. However, conventional mixing equipment mostly adopts unidirectional stirring mode, which causes the material to flow in one direction in the container, easily creating mixing dead zones. At the same time, for high-viscosity insulating coatings, unidirectional shear force is difficult to fully disperse fillers (such as silica, mica, etc.), which easily leads to local component aggregation or stratification, affecting the consistency of the dielectric properties of the coating. In view of this, in-depth research was conducted on the above problems, which led to this case. Utility Model Content
[0003] To address the shortcomings of existing technologies, this invention provides a bidirectional countercurrent stirring insulating coating production device, which solves the existing background technology problems.
[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a bidirectional countercurrent stirring insulating coating production device, comprising a stirring shell, wherein the stirring shell is a vertical cavity shell, the top of the stirring shell is open and closed by a top cover, a power frame is provided on the top of the stirring shell, a power component is provided on the power frame, and a bidirectional countercurrent stirring component is connected to the power frame;
[0005] The bidirectional countercurrent mixing assembly includes a main mixing shaft, which is connected to the output end of a power assembly. A rotating mixing frame is fitted around the main mixing shaft, and a secondary mixing shaft is provided at the end of the rotating mixing frame. The top of the rotating mixing frame meshes with the main mixing shaft through a planetary gear set. The rotating mixing frame extends into the mixing housing. Both the main mixing shaft and the secondary mixing shaft are provided with several mixing blades.
[0006] The bidirectional countercurrent stirring assembly also includes a transmission tooth groove. The middle section of the main stirring shaft is provided with a transmission tooth groove, and the rotating stirring frame is provided with a transmission groove corresponding to the transmission tooth groove. A transmission rod is installed in the transmission groove, and the two ends of the transmission rod are respectively linked to the transmission tooth groove and the auxiliary stirring shaft.
[0007] Preferably, the power assembly includes a power motor, the drive end of the power motor is connected to a speed reducer, and the end of the speed reducer is provided with a coupling.
[0008] Preferably, the top end of the main stirring shaft is provided with a spline, and the spline is connected to the coupling spline.
[0009] Preferably, the planetary gear set includes a main gear, which is sleeved on the main stirring shaft. A pair of planetary gears are meshed on both sides of the main gear. A transmission sleeve is meshed on the outside of the pair of planetary gears. The transmission sleeve has an internal tooth structure and meshes with the pair of planetary gears. The transmission sleeve is connected to the rotating stirring frame.
[0010] Preferably, the power frame is provided with a rotating groove to limit the transmission gear sleeve, and the rotating stirring frame is a plate with a cylindrical structure.
[0011] Preferably, the stirring blades on the main stirring shaft and the auxiliary stirring shaft are arranged horizontally in an alternating pattern.
[0012] Beneficial effects
[0013] This invention provides a bidirectional countercurrent stirring apparatus for producing insulating coatings. It offers the following advantages: A single power source enables triple actions—main shaft rotation, counter-rotating frame revolution, and secondary shaft rotation—effectively increasing the shear force of the stirring device, improving stirring efficiency and effect, and enhancing the uniformity of the mixture. Compared to traditional dual-shaft equipment, it reduces transmission components by 50%. The torque distribution mechanism of the planetary gear set and transmission gear grooves ensures smooth counter-current motion. It can handle coatings with high viscosity, and is particularly suitable for high-solids insulating varnishes containing glass fiber / ceramic microspheres. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the insulating coating production device with bidirectional countercurrent stirring as described in this utility model.
[0015] Figure 2 This is a schematic diagram of the explosion structure of the bidirectional countercurrent stirring insulating coating production device described in this utility model.
[0016] Figure 3 This is a cross-sectional structural diagram of the insulating coating production device with bidirectional countercurrent stirring according to the present invention.
[0017] In the diagram: 1. Mixing shell; 2. Top cover; 3. Power frame; 4. Power assembly; 5. Two-way counter-current mixing assembly; 41. Power motor; 42. Reducer; 43. Coupling; 51. Main mixing shaft; 52. Rotary mixing frame; 53. Auxiliary mixing shaft; 54. Planetary gear set; 55. Mixing blades; 56. Transmission gear groove; 57. Transmission rod; 541. Main gear; 542. Planetary gear; 543. Transmission gear sleeve. Detailed Implementation
[0018] 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.
[0019] Please see Figure 1-3 This utility model provides an implementation scheme: In the production process of modern insulating coatings, in order to improve the uniformity of the coating, it is necessary to fully stir the coating. Conventional stirring equipment often uses a single stirring shaft. This method not only has low stirring efficiency, but also makes it difficult to fully disperse the filler by unidirectional shear force, resulting in uneven mixing of the coating and affecting the production quality of the coating.
[0020] To address the aforementioned issues, this application discloses a bidirectional countercurrent mixing insulating coating production apparatus, comprising a mixing shell 1, which is a vertical hollow shell serving as the container for insulating coating production. Various materials are added from the top of the mixing shell 1, which has an opening at the top and is sealed by a top cover 2. The top cover 2 seals the mixing shell 1, providing a sealing effect. A power frame 3 is mounted on the top of the mixing shell 1, and a power assembly 4 is mounted on the power frame 3. A bidirectional countercurrent mixing assembly 5 is connected to the power frame 3. The power frame 3 serves as the mounting base for the power assembly 4 and the bidirectional countercurrent mixing assembly 5. The power assembly 4 drives the bidirectional countercurrent mixing assembly 5 to perform bidirectional countercurrent mixing, thereby improving mixing efficiency and achieving better mixing results.
[0021] Specifically, refer to the instruction manual. Figure 1-3 It can be seen that the above-mentioned bidirectional countercurrent stirring assembly 5 includes a main stirring shaft 51, which is connected to the output end of the power assembly 4. A rotating stirring frame 52 is sleeved on the outside of the main stirring shaft 51, and a secondary stirring shaft 53 is provided at the end of the rotating stirring frame 52. The top of the rotating stirring frame 52 meshes with the main stirring shaft 51 through a planetary gear set 54. The rotating stirring frame 52 extends into the stirring housing 1. Several stirring blades 55 are provided on both the main stirring shaft 51 and the secondary stirring shaft 53.
[0022] In the specific implementation process, the main stirring shaft 51 is directly connected to the output end of the power component 4. The output of the main stirring shaft 51 and the power component 4 are in the same direction. Taking the output of the power component 4 as clockwise as an example, the rotating stirring frame 52, which is sleeved on the outside of the main stirring shaft 51, meshes with the main stirring shaft 51 through a planetary gear set 54. The main gear 541 of the planetary gear set 54 is set on the main stirring shaft 51, and the outer ring of the planetary gear set 54 is integrally set with the rotating stirring frame 52, so that the rotating stirring frame 52 rotates in the opposite direction to the main stirring shaft 51. In this way, the rotating stirring frame 52 drives the auxiliary stirring shaft 53 to rotate in the opposite direction to the main stirring shaft 51, that is, to rotate counterclockwise, so that the main stirring shaft 51 and the auxiliary stirring shaft 53 form a planetary gear set. The system includes a secondary stirring shaft 53 that rotates in the opposite direction to the main stirring shaft 51, improving stirring efficiency. The bidirectional countercurrent stirring assembly 5 also includes a transmission tooth groove 56. The middle section of the main stirring shaft 51 is provided with the transmission tooth groove 56, and the rotating stirring frame 52 is provided with a transmission groove corresponding to the transmission tooth groove 56. A transmission rod 57 is installed in the transmission groove, and the two ends of the transmission rod 57 are linked with the transmission tooth groove 56 and the secondary stirring shaft 53, respectively. In this way, when the secondary stirring shaft 53 rotates in the opposite direction around the main stirring shaft 51, it can also rotate by the power transmitted by the main stirring shaft 51, which further improves the shear force of stirring. The torque distribution mechanism of the planetary gear set 54 and the transmission tooth groove 56 ensures the smoothness of the reverse motion and can handle coatings with high viscosity.
[0023] As a preferred embodiment, the power assembly 4 further includes a power motor 41, the drive end of which is connected to a reducer 42, and the end of the reducer 42 is provided with a coupling 43. The power motor 41 reduces the speed through the reducer 42 to increase the output torque, thereby meeting the torque requirements of the main stirring shaft 51, the auxiliary stirring shaft 53, and the rotating stirring frame 52.
[0024] As a preferred option, the top of the main stirring shaft 51 is provided with a spline, which is connected to the coupling 43 by a spline. The spline structure allows for easy assembly and disassembly of the main stirring shaft 51.
[0025] As a preferred option, further according to the appendix to the instruction manual... Figure 1-3 It can be seen that the above-mentioned planetary gear set 54 includes a main gear 541, which is sleeved on the main stirring shaft 51. A pair of planetary gears 542 are meshed on both sides of the main gear 541. A transmission gear sleeve 543 is meshed on the outside of the pair of planetary gears 542. The transmission gear sleeve 543 has an internal tooth structure and meshes with the pair of planetary gears 542. The transmission gear sleeve 543 is connected to the rotating stirring frame 52.
[0026] In the specific implementation process, the main gear 541 rotates in the same direction as the main stirring shaft 51. Since the position of a pair of planetary gears 542 is fixed, they can drive the transmission gear sleeve 543 to rotate. Since the top of the rotating stirring frame 52 is connected, the transmission gear sleeve 543 can realize the reverse transmission between the transmission gear sleeve 543 and the main stirring shaft 51.
[0027] As a preferred option, the power frame 3 is further provided with a rotating groove to limit the transmission gear sleeve 543, and the rotating mixing frame 52 is a plate with a cylindrical structure.
[0028] As a preferred option, the stirring blades 55 on the main stirring shaft 51 and the auxiliary stirring shaft 53 are arranged horizontally in a staggered manner to avoid interference between the main stirring shaft 51 and the auxiliary stirring shaft 53 during operation and to improve the uniformity of material mixing in both vertical and horizontal directions.
[0029] In summary, this bidirectional countercurrent mixing insulating coating production device achieves three actions—main shaft rotation, counter-rotation of the rotating frame, and secondary shaft rotation—through a single power source. This effectively increases the shear force of the mixing device, improves mixing efficiency and effect, and enhances the uniformity of the mixture. Compared to traditional dual-shaft equipment, it reduces transmission components by 50%. The torque distribution mechanism of the planetary gear set 54 and the transmission tooth groove 56 ensures the smoothness of the counter-movement. It can handle coatings with high viscosity and is especially suitable for high-solids insulating varnishes containing glass fiber / ceramic microspheres.
[0030] 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 and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A bidirectional countercurrent stirring insulating coating production apparatus, comprising a stirring shell (1), wherein the stirring shell (1) is a vertical cavity shell, the top of the stirring shell (1) is open and closed by a top cover (2), and a power frame (3) is provided on the top of the stirring shell (1), characterized in that, A power assembly (4) is provided on the power frame (3), and a bidirectional countercurrent stirring assembly (5) is connected to the power frame (3); The bidirectional countercurrent stirring assembly (5) includes a main stirring shaft (51), which is connected to the output end of the power assembly (4). A rotating stirring frame (52) is sleeved on the outside of the main stirring shaft (51). A secondary stirring shaft (53) is provided at the end of the rotating stirring frame (52). The top of the rotating stirring frame (52) meshes with the main stirring shaft (51) through a planetary gear set (54). The rotating stirring frame (52) extends into the stirring housing (1). Several stirring blades (55) are provided on both the main stirring shaft (51) and the secondary stirring shaft (53). The bidirectional countercurrent stirring assembly (5) also includes a transmission tooth groove (56). The middle section of the main stirring shaft (51) is provided with a transmission tooth groove (56). The rotating stirring frame (52) is provided with a transmission groove corresponding to the transmission tooth groove (56). A transmission rod (57) is installed in the transmission groove. The two ends of the transmission rod (57) are linked with the transmission tooth groove (56) and the auxiliary stirring shaft (53) respectively.
2. A device for producing insulating coating according to claim 1, characterized in that, The power assembly (4) includes a power motor (41), the drive end of which is connected to a reducer (42), and the end of the reducer (42) is provided with a coupling (43).
3. A device for producing insulating coating according to claim 2, characterized in that, The top end of the main stirring shaft (51) is provided with a spline, which is connected to the spline of the coupling (43).
4. A device for producing insulating coating according to claim 3, characterized in that, The planetary gear set (54) includes a main gear (541), which is sleeved on the main stirring shaft (51). A pair of planetary gears (542) are meshed on both sides of the main gear (541). A transmission sleeve (543) is meshed on the outside of the pair of planetary gears (542). The transmission sleeve (543) has an internal tooth structure and meshes with the pair of planetary gears (542). The transmission sleeve (543) is connected to the rotating stirring frame (52).
5. A bi-directional counter-current agitated insulation coating production apparatus according to claim 4, characterized in that The power frame (3) is provided with a rotating groove to limit the transmission gear sleeve (543), and the rotating stirring frame (52) is a columnar plate.
6. A bi-directional counter-current agitated insulation coating production apparatus according to claim 5, wherein, The stirring blades (55) on the main stirring shaft (51) and the auxiliary stirring shaft (53) are arranged horizontally in an alternating pattern.