Motor stator core paint dipping device

Abstract

A motor stator core paint dipping device provided by the present invention comprises a paint dipping box, the upper end of the inner side of the paint dipping box is rotatably connected with a rotating shaft, the left end of the rotating shaft is fixedly connected with a first motor, the output end of the first motor penetrates through the rotating shaft and is inwardly and fixedly connected with a connecting shaft, and the connecting shaft is fixedly connected with a main gear. A net-shaped spherical structure capable of being quickly assembled and locked is adopted for containing an iron core, the net-shaped form ensures all-directional permeation of paint liquid, and meanwhile, a unique driving structure endows the spherical container with a composite motion mode that revolution and rotation are overlapped; according to the paint dipping container, the limitation that a traditional paint dipping container is fixed in shape and single in movement is broken through, the iron core is in a continuous and random rolling state in paint liquid, it is ensured that all surfaces and gaps of the iron core can be evenly and fully soaked with the paint liquid, the uniformity and efficiency of the paint dipping effect are remarkably improved, and the problem that the iron core in a complex shape is not prone to being evenly dipped with paint is solved.

Description

Technical Field

[0001] This invention relates to the field of stator core impregnation technology, specifically to a motor stator core impregnation device. Background Technology

[0002] The electronic stator core is the core component of an electric motor (or generator). It is made of thin layers of laminated electrical silicon steel sheets, with internal slots for embedding winding coils and forming magnetic circuit channels. Impregnation with varnish serves three key purposes: first, electrical insulation—the varnish fills the tiny gaps between the silicon steel sheets, blocking the conductive paths between them, significantly reducing eddy current losses and iron losses, and improving efficiency; second, mechanical reinforcement—the cured insulating varnish bonds the loosely stacked sheets into a robust whole, enhancing the core's structural rigidity and suppressing electromagnetic vibration noise; and third, improved heat dissipation—the insulating varnish acts as a heat-conducting medium, more effectively transferring heat generated by the windings and core, while also providing moisture and corrosion protection, ensuring long-term operational reliability. An un-varnished core will result in decreased efficiency, increased heat generation, increased noise, and a shortened lifespan.

[0003] Existing dipping equipment generally suffers from the following limitations in terms of technical implementation: First, dipping containers are mostly fixed in shape or have only a single rotational function (such as only revolution). The workpiece lacks effective three-dimensional tumbling motion inside the container, resulting in insufficient contact between complex-shaped iron cores (especially structures with deep grooves and narrow slits) and the paint, creating dead zones and making it difficult to guarantee the uniformity of the paint film. Second, the multi-station processing capacity is insufficient. Workpiece loading and unloading usually require individual operations, which is cumbersome and time-consuming, and cannot quickly achieve synchronous opening, closing, and positioning of batch dipping units, seriously restricting overall production efficiency. Third, most equipment lacks an integrated paint recycling system. Used paint is easily mixed with detached impurities and volatiles, making it impossible to effectively purify and reuse. This not only wastes paint, but also increases costs and environmental pressure due to frequent replacement of new paint, while waste paint disposal also brings additional burdens. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a motor stator core impregnation device, which solves the problem that existing impregnation devices are mostly fixed in shape or only have a single rotation function, resulting in insufficient contact between complex-shaped iron cores and the paint, and the existence of impregnation dead corners.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a motor stator core impregnation device, comprising an impregnation tank, a rotating shaft rotatably connected to the upper inner side of the impregnation tank, a motor fixedly connected to the left end of the rotating shaft, a connecting shaft fixedly connected to the output end of the motor through the rotating shaft, a main gear fixedly connected to the connecting shaft, a driven rod rotatably connected to the inner side of the rotating shaft, a driven gear and a bevel gear fixedly connected to the driven rod, the main gear and the driven gear meshing with each other, and several sets of linkage rods rotatably connected to the four outer ends of the rotating shaft, a bevel gear fixedly connected to the inner part of the linkage rod, the bevel gear and the bevel gear meshing with each other; A semi-circular tennis ball is fixedly connected to the top of the outer end of the linkage rod. A semi-circular tennis ball is installed at the open end of the semi-circular tennis ball. A mounting block is fixedly connected to both ends of the opening of the semi-circular tennis ball. A mounting block is fixedly connected to both ends of the opening of the semi-circular tennis ball. The mounting block and the mounting block correspond to each other. A limiting groove is opened inside the mounting block. A limiting block is fixedly connected to the inner end of the mounting block. The limiting block and the limiting groove correspond to each other. A positioning bolt is threadedly connected to the limiting block and the limiting groove.

[0006] Preferably, the upper ends of the two mounting blocks are fixedly connected with vertical rods, and the tops of the several vertical rods at the left and right ends are fixedly connected with horizontal rods.

[0007] Preferably, a bracket is fixedly connected to the middle of the two crossbars.

[0008] Preferably, a mounting base is fixedly connected to the left end of the impregnation tank, and a motor is fixedly connected to the upper end of the mounting base.

[0009] Preferably, the output end of the second motor is fixedly connected to a second pulley, the end of the rotating shaft near the first motor is fixedly connected to a first pulley, and belts are fitted on the first pulley and the second pulley.

[0010] Preferably, a conveying pipe is provided through the right end of the impregnation tank, and a filter pump is installed in the middle of the conveying pipe.

[0011] Preferably, a filter box is provided through the other end of the conveying pipe, and a drain pipe is provided through the right side of the filter box, with a solenoid valve installed inside the drain pipe.

[0012] Preferably, a coarse filter screen is fixedly connected to one end of the inner side of the filter box, a fine filter screen is installed on one side of the coarse filter screen, and an activated carbon plate is installed on the other end of the fine filter screen.

[0013] The present invention has the following beneficial effects: 1. This invention uses a mesh-like spherical structure that can be quickly assembled and locked to accommodate the iron core. The mesh shape ensures that the paint penetrates in all directions, while its unique driving structure gives the spherical container a composite motion of revolution and rotation. This breaks through the limitations of traditional paint-dipping containers with fixed shape and single motion, so that the iron core is in a continuous and random rolling state in the paint. This ensures that all surfaces and gaps of the iron core can be uniformly and fully wetted by the paint, significantly improving the uniformity and efficiency of the paint-dipping effect, and solving the problem of uneven paint-dipping of complex-shaped iron cores.

[0014] 2. This invention utilizes a linkage frame composed of horizontal bars, vertical bars, and supports to achieve one-click centralized opening and closing and installation of multiple spherical impregnation units, greatly simplifying the cumbersome operations of loading and unloading materials and significantly improving the efficiency of multi-station impregnation operations. At the same time, the impregnation tank is closely integrated with a multi-stage filtration system that integrates coarse filtration, fine filtration, and activated carbon adsorption, forming an efficient paint recycling mechanism. This design not only effectively intercepts particulate impurities generated during the impregnation process and adsorbs volatiles, maintaining stable paint performance, extending service life, and reducing material consumption costs, but also realizes online treatment and resource utilization of waste liquid. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a motor stator core impregnation device proposed in this invention.

[0016] Figure 2 This is a side view of a motor stator core impregnation device proposed in this invention.

[0017] Figure 3 This is a schematic diagram of the installation of a semi-circular tennis ball in a motor stator core impregnation device proposed in this invention.

[0018] Figure 4 This is a schematic diagram of the self-rotation drive component of a motor stator core impregnation device proposed in this invention.

[0019] Figure 5 This is a top view of a motor stator core impregnation device proposed in this invention.

[0020] Figure 6 This is a schematic diagram of the filter assembly of a motor stator core impregnation device proposed in this invention.

[0021] The components are as follows: 1. Impregnation tank; 2. Semi-circular tennis ball one; 3. Semi-circular tennis ball two; 4. Horizontal bar; 5. Vertical bar; 6. Rotating shaft; 7. Conveying pipe; 8. Filter box; 9. Solenoid valve; 10. Drain pipe; 11. Activated carbon plate; 12. Filter pump; 13. Belt pulley one; 14. Motor one; 15. Motor two; 16. Mounting base; 17. Belt pulley two; 18. Belt; 19. Mounting block one; 20. Limiting groove; 21. Limiting block; 22. Bracket; 23. Positioning bolt; 24. Mounting block two; 25. Linkage rod; 26. Connecting shaft; 27. Main gear; 28. Driven gear; 29. ​​Driven rod; 30. Bevel gear one; 31. Bevel gear two; 32. Coarse filter screen; 33. Fine filter screen. Detailed Implementation

[0022] like Figure 1-6 As shown, this embodiment of the invention provides a motor stator core impregnation device, including an impregnation tank 1. A rotating shaft 6 is rotatably connected to the upper inner side of the impregnation tank 1. A motor 14 is fixedly connected to the left end of the rotating shaft 6. The output end of the motor 14 passes through the rotating shaft 6 and is fixedly connected to a connecting shaft 26. A main gear 27 is fixedly connected to the connecting shaft 26. A driven rod 29 is rotatably connected to the inner side of the rotating shaft 6. A driven gear 28 and a bevel gear 30 are fixedly connected to the driven rod 29. The main gear 27 and the driven gear 28 are connected... The four ends of the outer side of the rotating shaft 6 are rotatably connected to several sets of linkage rods 25. The inner part of the linkage rod 25 is fixedly connected to the second bevel gear 31. The first bevel gear 30 and the second bevel gear 31 mesh with each other. Through the rotating shaft 6, the fourth set of impregnated components at its outer end can be rotated. Then, the starter motor 14 drives the internal connecting shaft 26 and the main gear 27 to rotate. Under the meshing action, the first bevel gear 20 drives the four sets of driven gears 28 to rotate. The rotation of the driven gears 28 is fed back to the driven rod 2. 9 drives the bevel gear 30 to rotate, and under meshing action, it can also drive the bevel gear 31 and the linkage rod 25 to rotate. This allows the mesh ball to not only rotate with the rotating shaft 6, but also rotate on the rotating shaft 6. This ensures that the internal motor stator core rotates inside the mesh ball, allowing it to fully contact the paint and achieve a fast and uniform paint impregnation operation. At the same time, a small number of internal support ribs are added to the non-critical areas inside the two semi-circular tennis balls to ensure that they can withstand the weight of the core, the centrifugal force of rotation, and the resistance of the paint without significant deformation. The device must be installed in a working environment with good forced ventilation (such as a local exhaust hood) or equipped with a paint mist collection and treatment system, and appropriate measures should be taken according to the ambient temperature (such as placing the device in a constant temperature workshop). A solvent-resistant rubber sealing ring is used between the rotating shaft 6 and the linkage rod 25, which is embedded in the linkage rod mounting hole of the rotating shaft 6. The elastic lip of the sealing ring is in close contact with the surface of the linkage rod, forming a liquid film barrier during rotation, using the hydrodynamic effect to prevent the paint from entering. A semi-circular tennis ball 1 2 is fixedly connected to the top of the outer end of the linkage rod 25. A semi-circular tennis ball 2 3 is installed at the open end of the semi-circular tennis ball 1 2. Mounting block 1 19 is fixedly connected to both ends of the open end of the semi-circular tennis ball 1 2. Mounting block 2 24 is fixedly connected to both ends of the open end of the semi-circular tennis ball 2 3. Mounting block 1 19 and mounting block 2 24 correspond to each other. A limiting groove 20 is opened inside the mounting block 1 19. A limiting block 21 is fixedly connected to the inner end of the mounting block 24. The limiting block 21 corresponds to the limiting groove 20. The internal thread of the 21 and the limiting groove 20 is connected to the positioning bolt 23. Both semi-circular tennis balls are mesh structures, which allows the paint to enter the cavity through the mesh and contact the motor stator core to achieve the effect of impregnation. Secondly, the limiting block 21 at the inner end of the mounting block 24 can cooperate with the limiting groove 20 inside the mounting block 19 to complete the quick installation of the two semi-circular tennis balls, and lock them with the positioning bolt 23 to prevent the semi-circular tennis balls 23 from falling off during rotation and when the core is flipped. Two mounting blocks 24 are fixedly connected to the upper ends of vertical rods 5, and several horizontal rods 4 are fixedly connected to the top of several vertical rods 5 at both ends. A bracket 22 is fixedly connected to the middle of two horizontal rods 4. Multiple semi-circular tennis balls 23 can be connected together through the horizontal rods 4, vertical plates 5 and brackets 22, so as to carry out centralized and unified installation. This can greatly save installation time and improve the efficiency of its paint impregnation. A mounting base 16 is fixedly connected to the left end of the impregnation tank 1. A motor 15 is fixedly connected to the upper end of the mounting base 16. A pulley 17 is fixedly connected to the output end of the motor 15. A pulley 13 is fixedly connected to the end of the rotating shaft 6 near the motor 14. A belt 18 is fitted on the pulley 13 and the pulley 17. When the motor 15 is started, the pulley 17 is driven to rotate. Through the transmission of the belt 18, the pulley 13 and the rotating shaft 6 can be driven to rotate. During the rotation of the rotating shaft 6, the four sets of linkage rods 25 and the mesh ball at its outer end can be driven into the interior of the impregnation tank 1, so that the electronic stator core placed inside the mesh ball comes into contact with the paint liquid, thereby achieving the impregnation effect. During the rotation of the rotating shaft 6, the four sets of impregnation components can come into full contact with the paint liquid, thereby improving the overall impregnation effect. A conveying pipe 7 is installed through the right end of the paint impregnation tank 1. A filter pump 12 is installed in the middle of the conveying pipe 7. A filter box 8 is installed through the other end of the conveying pipe 7. A drain pipe 10 is installed through the right side of the filter box 8. A solenoid valve 9 is installed inside the drain pipe 10. When the filter pump 12 is started, the waste liquid after paint impregnation can be conveyed through the conveying pipe 7 to the inside of the filter box 8. After being filtered by the filter components inside the filter box 8, it is discharged out through the drain pipe 10 for subsequent unified collection, so as to achieve the effect of recycling. A coarse filter screen 32 is fixedly connected to one end of the inner side of the filter box 8. A fine filter screen 33 is installed on one side of the coarse filter screen 32, and an activated carbon plate 11 is installed on the other end of the fine filter screen 33. By setting up the coarse filter screen 32, the fine filter screen 33 and the activated carbon plate 11, the waste liquid can be filtered and adsorbed, which facilitates subsequent recycling, reduces the cost of the entire paint dipping operation, and improves the efficiency of paint dipping. The mesh of the coarse filter screen 32 is large enough to intercept large particles. The coarse filter screen 32 and the fine filter screen 33 adopt a structure that can be easily disassembled and cleaned. They can be disassembled and cleaned regularly. Secondly, the activated carbon plate 11 is mainly used to adsorb small molecule volatiles and odors. At the same time, the viscosity of the paint liquid is regularly detected and adjusted (solvent is replenished) to ensure the normal operation of the filter pump 12 and the filtration effect. When the paint liquid ages (viscosity increases sharply, and there is too much colloid), this filtration system alone may not be enough to maintain efficient operation, and new paint needs to be replaced.

[0023] Working principle: Paint is added to the inside of the impregnation tank 1. The operator places the motor stator core to be impregnated inside the semi-circular tennis balls 1. After placement, the bracket 22 is lifted to move several semi-circular tennis balls 2, so that the mounting blocks 24 at both ends of the semi-circular tennis balls 2 correspond to the mounting blocks 19. From top to bottom, the limiting block 21 enters the limiting groove 20. Then, the positioning bolts 23 are used to lock the two semi-circular tennis balls, so that the motor stator core is inside the spherical mesh cavity formed by the two semi-circular tennis balls. After the semi-circular tennis balls are installed, the second motor 15 drives the second pulley 17 to rotate. Through the transmission of the belt 18, the pulley 13 and the rotating shaft 6 can rotate. During the rotation of the rotating shaft 6, the four sets of linkage rods 25 at its outer end and the net ball can be driven into the interior of the paint dipping tank 1, so that the electronic stator core placed inside the net ball can come into contact with the paint liquid, thereby achieving the paint dipping effect. During the rotation of the rotating shaft 6, the four sets of paint dipping components can make full contact with the paint liquid, thereby improving the overall paint dipping effect. During the impregnation process, the starting motor 14 drives the internal connecting shaft 26 and the main gear 27 to rotate. Under meshing, it drives the four sets of driven gears 28 to rotate. The rotation of the driven gears 28 feeds back to the driven rod 29, which drives the bevel gear 30 to rotate. Similarly, under meshing, it can drive the bevel gear 31 and the linkage rod 25 to rotate. This allows the mesh ball to not only rotate with the rotating shaft 6, but also rotate on the rotating shaft 6. This ensures that the internal motor stator core rotates inside the mesh ball, allowing it to fully contact the paint and achieve a fast and uniform impregnation operation.

Claims

1. A device for impregnating the stator core of an electric motor, characterized in that: The device includes an impregnation tank (1), with a rotating shaft (6) rotatably connected to the upper inner side of the impregnation tank (1). A motor (14) is fixedly connected to the left end of the rotating shaft (6). A connecting shaft (26) is fixedly connected to the output end of the motor (14) through the rotating shaft (6). A main gear (27) is fixedly connected to the connecting shaft (26). A driven rod (29) is rotatably connected to the inner side of the rotating shaft (6). A driven gear (28) and a bevel gear (30) are fixedly connected to the driven rod (29). The main gear (27) and the driven gear (28) mesh with each other. Several sets of linkage rods (25) are rotatably connected to the four ends of the outer side of the rotating shaft (6). A bevel gear (31) is fixedly connected to the inner part of the linkage rod (25) located on the rotating shaft (6). The bevel gear (30) and the bevel gear (31) mesh with each other. The top of the outer end of the linkage rod (25) is fixedly connected to a semi-circular tennis ball one (2). A semi-circular tennis ball two (3) is installed at the opening end of the semi-circular tennis ball one (2). Mounting block one (19) is fixedly connected to both ends of the opening of the semi-circular tennis ball one (2). Mounting block two (24) is fixedly connected to both ends of the opening of the semi-circular tennis ball two (3). Mounting block one (19) and mounting block two (24) correspond to each other. A limiting groove (20) is opened inside the mounting block one (19). A limiting block (21) is fixedly connected to the inner end of the mounting block two (24). The limiting block (21) and the limiting groove (20) correspond to each other. A positioning bolt (23) is threadedly connected inside the limiting block (21) and the limiting groove (20).

2. The motor stator core impregnation device according to claim 1, characterized in that: The upper ends of the two mounting blocks (24) are fixedly connected with vertical rods (5), and the tops of several vertical rods (5) at both the left and right ends are fixedly connected with horizontal rods (4).

3. The motor stator core impregnation device according to claim 2, characterized in that: A bracket (22) is fixedly connected to the middle of the two crossbars (4).

4. The motor stator core impregnation device according to claim 1, characterized in that: The left end of the impregnation tank (1) is fixedly connected to a mounting base (16), and the upper end of the mounting base (16) is fixedly connected to a motor (15).

5. The motor stator core impregnation device according to claim 4, characterized in that: The output end of the second motor (15) is fixedly connected to the second pulley (17), and the end of the rotating shaft (6) near the first motor (14) is fixedly connected to the first pulley (13). A belt (18) is fitted on the first pulley (13) and the second pulley (17).

6. The motor stator core impregnation device according to claim 1, characterized in that: A conveying pipe (7) is provided through the right end of the impregnation tank (1), and a filter pump (12) is installed in the middle of the conveying pipe (7).

7. The motor stator core impregnation device according to claim 6, characterized in that: A filter box (8) is installed through the other end of the delivery pipe (7), and a drain pipe (10) is installed through the right side of the filter box (8). A solenoid valve (9) is installed inside the drain pipe (10).

8. The motor stator core impregnation device according to claim 7, characterized in that: A coarse filter screen (32) is fixedly connected to one end of the inner side of the filter box (8), a fine filter screen (33) is installed on one side of the coarse filter screen (32), and an activated carbon plate (11) is installed on the other end of the fine filter screen (33).

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