A kind of motor is dipped paint tank

Abstract

The utility model relates to motor processing technical field, concretely is a kind of motor with paint dipping jar, including the sealing cover being equipped with on jar body, sealing cover is opened and closed under the drive of opening and closing subassembly, jar body is equipped with paint inlet, paint outlet;Supporting plate is horizontally and slidably arranged in jar body, supporting plate is equipped with multiple water holes, supporting plate is used to place motor shell;Stirring shaft is arranged in jar body below supporting plate, multiple stirring paddles are fixed on stirring shaft, stirring shaft upper end is connected with supporting plate lower end pivot, stirring shaft is driven by rotating subassembly and rotates alternately, stirring shaft is driven by lifting subassembly and lifts, when stirring shaft lifts, driving supporting plate synchronous lifting;The utility model has the advantages that paint solution is uniformly mixed, viscosity and concentration remain stable.

Description

Technical Field

[0001] This utility model relates to the field of motor processing technology, specifically to a paint impregnation tank for motors. Background Technology

[0002] In the motor manufacturing industry, the motor housing is a crucial component, serving not only to support and protect the internal windings, rotor, and other core components, but also directly affecting the overall safety and lifespan of the motor due to its surface insulation performance. The impregnation process, a key step in imparting insulation protection to the motor housing, relies heavily on the performance of the impregnation tank to achieve the desired impregnation effect.

[0003] Traditional motor impregnation tanks are mostly simply designed to hold insulating varnish and house the motor housing. In actual production, due to differences in the specific gravity of resins and fillers within the insulating varnish, the varnish is prone to stratification after prolonged standing in the tank. Once stratified, the upper layer of varnish has lower concentration and viscosity, weakening its insulating properties, while the lower layer becomes thicker and less fluid due to resin and other component sedimentation. When the motor housing is immersed in the stratified varnish, the composition and properties of the varnish in contact with different parts of the housing are inconsistent, resulting in uneven insulation layer thickness on the motor housing surface after impregnation. Some areas have weak insulation, which can easily lead to partial discharge or even insulation breakdown during motor operation due to uneven electric field distribution, seriously affecting the safe and stable operation of the motor. Utility Model Content

[0004] In view of this, the present invention provides a varnish impregnation tank for motors, which aims to solve the problems in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a varnish impregnation tank for motors, comprising:

[0006] The tank body is equipped with a sealing cap, which is opened and closed by an opening and closing component. The tank body is equipped with a paint inlet and a paint outlet.

[0007] A support plate is horizontally and slidably disposed inside the tank. The support plate is provided with multiple water passage holes and is used to place the motor housing.

[0008] A stirring shaft is located inside the tank below the support plate. Multiple stirring paddles are fixed on the stirring shaft. The upper end of the stirring shaft is connected to the lower end of the support plate via a rotating shaft. The stirring shaft rotates alternately in both directions under the drive of the rotating assembly. The stirring shaft rises and falls under the drive of the lifting assembly, and the support plate rises and falls synchronously when the stirring shaft rises and falls.

[0009] A further improvement of this utility model is that the rotating assembly includes:

[0010] A first motor is fixedly installed below the tank body, and a wheel is fixedly installed on it. A guide column is eccentrically fixed on the wheel.

[0011] The first rack is horizontally and slidably disposed below the tank body. The long slot fixed at its end is slidably connected to the guide post. The first rack meshes with the first gear disposed at the lower end of the stirring shaft that penetrates the bottom of the tank body.

[0012] A further improvement of this utility model is that the lifting assembly includes:

[0013] A rotating sleeve is fitted onto the lower end of the stirring shaft. The first gear is fixed on the rotating sleeve. When the first rack drives the rotating sleeve to rotate alternately in both directions through the first gear, the rotating sleeve drives the stirring shaft to rotate in both directions through the connecting assembly.

[0014] A cylindrical rack is fixedly mounted on the stirring shaft below the tank body;

[0015] The second motor is fixedly installed below the tank body. The second gear fixedly installed at the power output end of the second motor meshes with the cylindrical rack. When the second motor drives the second gear to rotate, the second gear drives the cylindrical rack and the stirring shaft to rise and fall. Under the action of the connecting component, the rotating sleeve always drives the stirring shaft to rotate.

[0016] A further improvement of this utility model is that the connecting component includes a guide key, which is fixedly disposed at the lower end of the stirring shaft along the axial direction of the stirring shaft, and the guide key is slidably connected to the guide groove on the inner wall of the rotating sleeve.

[0017] A further improvement of this utility model is that the opening and closing component includes:

[0018] The first connecting rod is horizontally positioned above the sealing cover, and the first end of the first connecting rod is hinged to the upper end of the sealing cover.

[0019] The second connecting rod is inclined on one side of the sealing cover, with its first end fixedly connected to the second end of the first connecting rod, and the second end of the second connecting rod hinged to the tank body;

[0020] The third link is perpendicular to the second link, and the first end of the third link is fixedly connected to the second link;

[0021] A hydraulic cylinder, the cylinder body of which is hinged to the tank body, and the end of the piston rod of the hydraulic cylinder is hinged to the second end of the third connecting rod.

[0022] A further improvement of this utility model is that the opening and closing component further includes:

[0023] Two first screws are arranged parallel to each other on both sides of the first connecting rod, and the lower ends of the two first screws are respectively fixedly connected to the sealing cap;

[0024] A horizontal plate is horizontally positioned below the first connecting rod, with the upper surface of the horizontal plate abutting against the lower surface of the first connecting rod, and the two sides of the horizontal plate being threadedly connected to the two first screws respectively.

[0025] A pressure plate is horizontally positioned above the first connecting rod. The lower surface of the pressure plate abuts against the upper surface of the first connecting rod. The two sides of the pressure plate are threadedly connected to the two first screws respectively. Two nuts are provided above the pressure plate, and the nuts are threadedly connected to the corresponding first screws.

[0026] A further improvement of this utility model is that a plurality of first locking plates are fixedly provided in the circumferential direction at the lower end of the sealing cover, and a first through hole is provided on the side of the first locking plate facing outward. A plurality of second locking plates are provided at the upper end of the tank body, each corresponding to one of the plurality of first locking plates, and a second through hole is provided on the second locking plate.

[0027] Multiple second screws correspond one-to-one with multiple first through holes. The second screws pass through the first through holes and are hinged to the second through holes. A threaded sleeve is screwed onto the second screw above the first through holes.

[0028] A further improvement of this utility model is that a plurality of sliders are uniformly fixed in the circumferential direction of the support plate, and the plurality of sliders correspond one-to-one with a plurality of sliding grooves in the tank. The sliders are slidably connected to the sliding grooves, and the length direction of the sliding grooves is parallel to the axial direction of the stirring shaft.

[0029] The technological advancements achieved by this utility model due to the adoption of the above technical solution are as follows:

[0030] This utility model provides a paint impregnation tank for motors. The stirring shaft and stirring paddle inside the tank rotate alternately in both directions under the drive of the rotating component, which can stir the paint liquid inside the tank from all directions. Compared with the prior art, this design effectively solves the problem of paint liquid separation caused by standing, so that the components of the paint liquid are uniformly mixed and the viscosity and concentration remain stable. When the motor housing is immersed, the paint liquid in contact with each part has the same properties, thereby ensuring that a protective layer with uniform thickness and good insulation performance is formed on the surface of the motor housing, improving the overall safety and stability of the motor.

[0031] In this invention, the support plate, which is horizontally slidable inside the tank, provides a stable platform for the motor housing. The multiple water holes on the support plate facilitate the flow of paint and ensure thorough immersion. At the same time, the support plate is raised and lowered synchronously when the stirring shaft is raised and lowered, which can conveniently realize the operation of immersing and removing the motor housing from the paint. Compared with the prior art, this invention greatly improves production efficiency and reduces labor intensity. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the overall structure of the impregnation tank described in this utility model;

[0034] Figure 2 This is a schematic diagram of the rotating assembly of the impregnation tank described in this utility model;

[0035] Figure 3 This is a schematic diagram of the internal structure of the impregnation tank described in this utility model;

[0036] Figure 4 This is a schematic diagram of the opening and closing assembly of the impregnation tank described in this utility model;

[0037] Figure 5 This is a schematic diagram of the first locking plate of the paint impregnation tank described in this utility model.

[0038] Explanation of reference numerals in the attached figures:

[0039] 10-Tank body, 101-Second locking plate, 102-Second through hole, 103-Slide groove, 11-Sealing cover, 111-First locking plate, 112-First through hole, 12-Support plate, 121-Water passage hole, 122-Slider, 13-Agitator shaft, 131-Agitator paddle, 132-First gear, 14-Second screw, 141-Threaded sleeve, 20-Rotating assembly, 21-First motor, 22-Disc, 221-Guide column, 23-First rack, 231-Long slot, 24-Rotating sleeve, 241-Guide key, 30-Lifting assembly, 31-Cylindrical rack, 32-Second motor, 33-Second gear, 40-Opening and closing assembly, 41-First connecting rod, 42-Second connecting rod, 43-Third connecting rod, 44-Hydraulic cylinder, 45-First screw, 46-Horizontal plate, 47-Pressure plate, 48-Nut. Detailed Implementation

[0040] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, in the following description, specific details such as particular system structures and technologies are set forth for illustrative purposes rather than for limiting purposes, in order to provide a thorough understanding of the embodiments of the present invention. However, those skilled in the art should understand that the present invention can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details hindering the description of the present invention.

[0041] This utility model provides a varnish impregnation tank for motors, as detailed in the attached instruction manual. Figure 1 To be continued Figure 5 It can be seen that a motor impregnation tank mainly includes the following parts or components: tank body 10, support plate 12, and stirring shaft 13.

[0042] In this invention, a sealing cover 11 is provided on the tank body 10. The sealing cover 11 is opened and closed under the drive of the opening and closing component 40. The tank body 10 is provided with a paint inlet (not shown in the figure) and a paint outlet (not shown in the figure). The support plate 12 is horizontally and slidably disposed inside the tank body 10. The support plate 12 is provided with multiple water passage holes 121 and is used to place the motor housing. The stirring shaft 13 is disposed inside the tank body 10 below the support plate 12. Multiple stirring paddles 131 are fixed on the stirring shaft 13. The upper end of the stirring shaft 13 is connected to the lower end of the support plate 12. The stirring shaft 13 rotates alternately in both directions under the drive of the rotating component 20. The stirring shaft 13 is lifted and lowered under the drive of the lifting component 30. When the stirring shaft 13 is lifted and lowered, it drives the support plate 12 to lift and lower synchronously.

[0043] First, the sealing cover 11 is opened by the opening and closing component 40, and the operator neatly places the motor housing on the support plate 12. Then, the opening and closing component 40 causes the sealing cover 11 to descend smoothly and lock tightly onto the tank 10. After sealing, insulating varnish is injected into the tank 10 through the varnish inlet. Once the varnish reaches the appropriate level, the varnish inlet is closed. After the varnish is injected, the lifting component 30 is activated to drive the stirring shaft 13 to descend slowly. At the same time, the stirring shaft 13 drives the support plate 12 to descend synchronously, so that the motor housing placed on the support plate 12 is smoothly immersed in the varnish. When the motor housing is completely immersed in the varnish, the rotating component 20 is activated to drive the stirring shaft 13 to rotate alternately in both directions. The stirring paddle 131 on the stirring shaft 13 thoroughly stirs the varnish during rotation, effectively preventing varnish separation and ensuring that all parts of the motor housing are in uniform contact with the stable varnish, achieving a good varnishing effect. After the paint impregnation is completed, the rotating component 20 drives the stirring shaft 13 to stop rotating, and the lifting component 30 drives the stirring shaft 13 to rise slowly. At the same time, the stirring shaft 13 drives the support plate 12 to rise synchronously, so that the motor housing placed on the support plate 12 is smoothly exposed to the paint liquid. Then, the sealing cover 11 is opened by the opening and closing component 40, and the operator takes out the motor housing after impregnation. Finally, the paint outlet is opened to drain the remaining paint liquid in the tank 10 for the next impregnation operation.

[0044] As one embodiment, in conjunction with the appendix to the specification Figure 2It is known that the rotating assembly 20 includes a first motor 21, which is fixed below the tank body 10, and a wheel 22 is fixed on it. A guide post 221 is eccentrically fixed on the wheel 22. The first rack 23 is horizontal and slidably disposed below the tank body 10. The long slot 231 fixed at its end is slidably connected to the guide post 221. The first rack 23 meshes with the first gear 132 provided at the lower end of the stirring shaft 13 that penetrates the bottom of the tank body 10.

[0045] The first motor 21 drives the wheel 22 to rotate. The guide post 221 on the wheel 22 slides in the long slot 231 of the first rack 23, driving the first rack 23 to slide horizontally. The first rack 23 meshes with the first gear 132 at the lower end of the stirring shaft 13, thereby driving the stirring shaft 13 to rotate alternately in both directions.

[0046] As one embodiment, in conjunction with the appendix to the specification Figure 2 As can be seen, the lifting assembly 30 includes a rotating sleeve 24, which is sleeved on the lower end of the stirring shaft 13. A first gear 132 is fixed on the rotating sleeve 24. When the first rack 23 drives the rotating sleeve 24 to rotate alternately in both directions through the first gear 132, the rotating sleeve 24 drives the stirring shaft 13 to rotate in both directions through the connecting assembly. A cylindrical rack 31 is fixed on the stirring shaft 13 below the tank body 10. A second motor 32 is fixed below the tank body 10. A second gear 33 fixed at the power output end of the second motor 32 meshes with the cylindrical rack 31. When the second motor 32 drives the second gear 33 to rotate, the second gear 33 drives the cylindrical rack 31 and the stirring shaft 13 to rise and fall. Under the action of the connecting assembly, the rotating sleeve 24 always drives the stirring shaft 13 to rotate. The connecting assembly includes a guide key 241, which is fixed on the lower end of the stirring shaft 13 along the axial direction of the stirring shaft 13. The guide key 241 is slidably connected to the guide groove (not shown in the figure) on the inner wall of the rotating sleeve 24.

[0047] When the support plate 12 needs to be raised or lowered, the second motor 32 starts, and the second gear 33 at its power output end rotates accordingly. Since the second gear 33 meshes with the cylindrical rack 31 fixed on the stirring shaft 13, the rotation of the second gear 33 drives the cylindrical rack 31 to move axially, thereby driving the stirring shaft 13 to rise or fall. During the raising or lowering of the stirring shaft 13, the rotating sleeve 24 sleeved on the lower end of the stirring shaft 13 is slidably connected to the guide key 241 at the lower end of the stirring shaft 13 through the inner wall guide groove, thus maintaining torque transmission to the stirring shaft 13. When the rotating sleeve 24 rotates alternately forward and backward under the drive of the rotating assembly 20, it can drive the stirring shaft 13 to rotate through the guide key 241 and the guide groove. When the lifting assembly 30 drives the stirring shaft 13 to rise or fall, the guide key 241 and the guide groove can prevent the rotating assembly 20 from rising or falling synchronously with the stirring shaft 13.

[0048] Specifically, the second motor 32 is a forward and reverse rotating motor.

[0049] As one embodiment, in conjunction with the appendix to the specification Figure 4 It is known that the opening and closing assembly 40 includes a first connecting rod 41, which is horizontally disposed above the sealing cover 11, and the first end of the first connecting rod 41 is hinged to the upper end of the sealing cover 11; a second connecting rod 42 is inclinedly disposed on one side of the sealing cover 11, and its first end is fixedly connected to the second end of the first connecting rod 41, and the second end of the second connecting rod 42 is hinged to the tank body 10; a third connecting rod 43 is perpendicular to the second connecting rod 42, and the first end of the third connecting rod 43 is fixedly connected to the second connecting rod 42; the cylinder body of the hydraulic cylinder 44 is hinged to the tank body 10, and the end of the piston rod of the hydraulic cylinder 44 is hinged to the second end of the third connecting rod 43. The opening and closing assembly 40 also includes two first screws 45, which are arranged parallel to each other on both sides of the first connecting rod 41. The lower ends of the two first screws 45 are fixedly connected to the sealing cover 11 respectively. A horizontal plate 46 is arranged horizontally below the first connecting rod 41. The upper surface of the horizontal plate 46 abuts against the lower surface of the first connecting rod 41. The two sides of the horizontal plate 46 are threadedly connected to the two first screws 45 respectively. A pressure plate 47 is arranged horizontally above the first connecting rod 41. The lower surface of the pressure plate 47 abuts against the upper surface of the first connecting rod 41. The two sides of the pressure plate 47 are threadedly connected to the two first screws 45 respectively. Two nuts 48 are provided above the pressure plate 47. The nuts 48 are threadedly connected to the corresponding first screws 45.

[0050] When it is necessary to open the sealing cover 11 to place the motor housing or remove the motor housing after varnishing, the hydraulic cylinder 44 is activated. The cylinder body of the hydraulic cylinder 44 is hinged to the tank body 10, and the end of the piston rod is hinged to the second end of the third connecting rod 43. At this time, the piston rod of the hydraulic cylinder 44 begins to extend. The extension of the piston rod pulls the third connecting rod 43. Since the third connecting rod 43 is fixedly connected to the second connecting rod 42, and the second end of the second connecting rod 42 is hinged to the tank body 10, the third connecting rod 43 drives the second connecting rod 42 to swing upward around the hinge point with the tank body 10. The second connecting rod 42 is fixedly connected to the first connecting rod 41, thus driving the horizontally positioned first connecting rod 41 to move away from the center of the tank 10. The first connecting rod 41 drives the sealing cover 11 to move away from the tank 10. When the first connecting rod 41 moves, it also drives the pressure plate 47, the horizontal plate 46, the first screw 45, and the two nuts 48 to move synchronously, which can prevent the sealing cover 11 from shaking until the sealing cover 11 is fully opened, making it convenient for operators to carry out related work. To close, simply reverse the operation.

[0051] Specifically, a horizontal plate 46, a pressure plate 47, two first screws 45, two nuts 48, and the first end of the first connecting rod 41 are hinged to the upper end of the sealing cover 11. This method fixes the first connecting rod 41 to the sealing cover 11, making it easy to install and remove the first connecting rod 41 and the sealing cover 11.

[0052] As one embodiment, in conjunction with the appendix to the specification Figure 5It can be seen that a plurality of first locking plates 111 are fixedly provided in the circumferential direction at the lower end of the sealing cover 11. The first locking plate 111 has a first through hole 112 on the side facing outward. The upper end of the tank body 10 is provided with a plurality of second locking plates 101 corresponding to the plurality of first locking plates 111. The second locking plate 101 has a second through hole 102 parallel to the first through hole 112. A plurality of second screws 14 correspond to the plurality of first through holes 112. The second screws 14 pass through the first through hole 112 and are hinged to the second through hole 102. A threaded sleeve 141 is screwed onto the second screws 14 above the first through hole 112.

[0053] After the opening and closing assembly 40 smoothly covers the sealing cap 11 onto the tank body 10, the locking operation begins. The second screw 14 rotates around the hinge point until it enters the first through hole 112 and is in a vertical position. Then, the threaded sleeve 141 is screwed onto the second screw 14 located above the first through hole 112. By rotating the threaded sleeve 141 clockwise, the threaded sleeve 141 gradually moves down until it abuts against the upper surface of the first locking plate 111. At the same time, the second screw 14 generates an upward pulling force on the second locking plate 101. Under the combined action of the two, the first locking plate 111 and the second locking plate 101 fit tightly together, firmly fixing the sealing cap 11 onto the tank body 10, effectively preventing paint leakage or gas escape during the immersion process, and ensuring the sealing of the tank body 10.

[0054] After the impregnation process is complete, when it is necessary to open the sealing cover 11 and remove the motor housing, first rotate the threaded sleeve 141 counterclockwise to move it upwards until it is completely disengaged from the upper surface of the first locking plate 111. At this time, the fastening force between the first locking plate 111 and the second locking plate 101 is released. Then, turn the second screw 14 out of the second through hole 102 to separate the first locking plate 111 from the second locking plate 101. Finally, drive the sealing cover 11 to open through the opening and closing assembly 40, and the impregnated motor housing can be easily removed.

[0055] As one embodiment, in conjunction with the appendix to the specification Figure 3 It can be seen that multiple sliders 122 are uniformly fixed in the circumferential direction of the support plate 12. The multiple sliders 122 correspond one-to-one with multiple sliding grooves 103 in the tank body 10. The sliders 122 and the sliding grooves 103 are slidably connected. The length direction of the sliding grooves 103 is parallel to the axial direction of the stirring shaft 13.

[0056] The slider 122, which is arranged in the circumferential direction of the support plate 12, cooperates with the sliding groove 103 inside the tank 10 to make the support plate 12 slide more smoothly.

[0057] It should be noted that in this patent application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0058] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.

Claims

1. A varnish impregnation tank for electric motors, characterized in that, include: The tank body is equipped with a sealing cap, which is opened and closed by an opening and closing component. The tank body is equipped with a paint inlet and a paint outlet. A support plate is horizontally and slidably disposed inside the tank. The support plate is provided with multiple water passage holes and is used to place the motor housing. A stirring shaft is located inside the tank below the support plate. Multiple stirring paddles are fixed on the stirring shaft. The upper end of the stirring shaft is connected to the lower end of the support plate via a rotating shaft. The stirring shaft rotates alternately in both directions under the drive of the rotating assembly. The stirring shaft rises and falls under the drive of the lifting assembly, and the support plate rises and falls synchronously when the stirring shaft rises and falls.

2. The impregnation tank for an electric motor according to claim 1, characterized in that, The rotating assembly includes: A first motor is fixedly installed below the tank body, and a wheel is fixedly installed on it. A guide column is eccentrically fixed on the wheel. The first rack is horizontally and slidably disposed below the tank body. The long slot fixed at its end is slidably connected to the guide post. The first rack meshes with the first gear disposed at the lower end of the stirring shaft that penetrates the bottom of the tank body.

3. The impregnation tank for an electric motor according to claim 2, characterized in that, The lifting assembly includes: A rotating sleeve is fitted onto the lower end of the stirring shaft. The first gear is fixed on the rotating sleeve. When the first rack drives the rotating sleeve to rotate alternately in both directions through the first gear, the rotating sleeve drives the stirring shaft to rotate in both directions through the connecting assembly. A cylindrical rack is fixedly mounted on the stirring shaft below the tank body; The second motor is fixedly installed below the tank body. The second gear fixedly installed at the power output end of the second motor meshes with the cylindrical rack. When the second motor drives the second gear to rotate, the second gear drives the cylindrical rack and the stirring shaft to rise and fall. Under the action of the connecting component, the rotating sleeve always drives the stirring shaft to rotate.

4. A varnish impregnation tank for an electric motor according to claim 3, characterized in that, The connecting assembly includes a guide key, which is fixedly disposed at the lower end of the stirring shaft along the axial direction of the stirring shaft, and the guide key is slidably connected to the guide groove on the inner wall of the rotating sleeve.

5. A varnish impregnation tank for an electric motor according to claim 1, characterized in that, The opening and closing component includes: The first connecting rod is horizontally positioned above the sealing cover, and the first end of the first connecting rod is hinged to the upper end of the sealing cover. The second connecting rod is inclined on one side of the sealing cover, with its first end fixedly connected to the second end of the first connecting rod, and the second end of the second connecting rod hinged to the tank body; The third link is perpendicular to the second link, and the first end of the third link is fixedly connected to the second link; A hydraulic cylinder, the cylinder body of which is hinged to the tank body, and the end of the piston rod of the hydraulic cylinder is hinged to the second end of the third connecting rod.

6. A varnish impregnation tank for an electric motor according to claim 5, characterized in that, The opening and closing component also includes: Two first screws are arranged parallel to each other on both sides of the first connecting rod, and the lower ends of the two first screws are respectively fixedly connected to the sealing cap; A horizontal plate is horizontally positioned below the first connecting rod, with the upper surface of the horizontal plate abutting against the lower surface of the first connecting rod, and the two sides of the horizontal plate being threadedly connected to the two first screws respectively. A pressure plate is horizontally positioned above the first connecting rod. The lower surface of the pressure plate abuts against the upper surface of the first connecting rod. The two sides of the pressure plate are threadedly connected to the two first screws respectively. Two nuts are provided above the pressure plate, and the nuts are threadedly connected to the corresponding first screws.

7. A varnish impregnation tank for an electric motor according to claim 1, characterized in that, The lower end of the sealing cap is fixed with a plurality of first locking plates in the circumferential direction. The first locking plates are provided with a first through hole on the side facing outward. The upper end of the tank is provided with a plurality of second locking plates corresponding to the plurality of first locking plates. The second locking plates are provided with a second through hole parallel to the first through hole. Multiple second screws correspond one-to-one with multiple first through holes. The second screws pass through the first through holes and are hinged to the second through holes. A threaded sleeve is screwed onto the second screw above the first through holes.

8. A varnish impregnation tank for an electric motor according to any one of claims 1-7, characterized in that, The support plate is uniformly fixed with multiple sliders in the circumferential direction. Each slider corresponds to a groove in the tank. The sliders are slidably connected to the grooves. The length direction of the groove is parallel to the axial direction of the stirring shaft.

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