High torque waterproof motor and its stator lamination insulation treatment process

Abstract

The present invention discloses a high-torque waterproof motor and a process for insulating a stator punching sheet thereof, comprising a housing, a rotating shaft, a stator and a rotor. The stator comprises a stator punching sheet, a through hole is arranged at the center of the stator punching sheet, saw teeth are evenly arranged on the circumferential side of the through hole, a winding groove is formed between two adjacent saw teeth, and positioning holes are evenly arranged on the stator punching sheet. The process comprises: installation of a barrel body, installation of a paint liquid circulation system, a primary lacquering treatment, a secondary lacquering treatment, a spin-drying treatment and a drying treatment. The present invention facilitates the installation of a support column for each positioning hole of the stator punching sheet during lacquering through the design of the positioning holes, so that a gap is generated between two adjacent stator punching sheets above and below, so that the paint liquid can contact all the outer surfaces of the stator punching sheet, thereby improving the insulation effect of the stator punching sheet. The insulation treatment process has simple steps and greatly improves the insulation effect and quality of the stator punching sheet.

Description

Technical Field

[0001] The invention relates to a high-torque waterproof motor and a stator punching sheet insulation treatment process thereof. Background Art

[0002] In the production and processing of motors in the prior art, stator punching sheets generally rely on the oxide film insulation of the silicon steel sheets themselves, and are usually not subjected to insulation treatment. As a result, the iron core is easily corroded, which affects the service life. In addition, the eddy current loss is large, the temperature rises, and the motor efficiency is low. At the same time, due to the process reasons for the insulation treatment of the stator punching sheets, the insulation layer on the surface of the stator punching sheets has defects, which affects the insulation performance between the punching sheets. Summary of the invention

[0003] The purpose of the present invention is to provide a technical solution for a high-torque waterproof motor and a stator punching insulation treatment process thereof in view of the deficiencies in the prior art. Through the design of positioning holes, it is convenient to install a support column for each positioning hole of the stator punching when the stator punching is dipped in paint, so that a gap is generated between two adjacent stator punchings above and below, so that the paint liquid can contact all outer surfaces of the stator punching, thereby improving the insulation effect of the stator punching. The insulation treatment process has simple steps and greatly improves the insulation effect and quality of the stator punching.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A high torque waterproof motor comprises a housing, a rotating shaft, a stator and a rotor, wherein the rotor is fixedly connected to the rotating shaft, the rotating shaft is rotatably connected to the housing, and the stator is fixedly connected to the inner side of the housing, and is characterized in that: the stator comprises a stator punching sheet, a through hole is arranged at the center of the stator punching sheet, saw teeth are evenly arranged on the circumferential side of the through hole, a winding groove is formed between two adjacent saw teeth, positioning holes are evenly arranged on the stator punching sheet, the positioning holes are distributed in an annular shape, arc grooves are arranged at the corners of the stator punching sheet, and both ends of the arc grooves are connected to the stator punching sheet through arc transition sections. The straight side of the sheet; through the design of the positioning holes, it is convenient to install a support column for each positioning hole of the stator punching sheet when dipping the paint, so that a gap is generated between the upper and lower adjacent stator punching sheets, which is convenient for the paint liquid to contact all the outer surfaces of the stator punching sheets and improve the insulation effect of the stator punching sheets. The through holes are used to install the rotor to ensure a certain gap between the rotor and the stator. The winding grooves are used to install the stator coils. The design of the arc grooves and the arc transition sections facilitates the installation and positioning of the stator punching sheets, and at the same time improves the safety during installation and disassembly to avoid scratches.

[0006] Furthermore, an opening is formed between the inner ends of two adjacent saw teeth, and the size of the opening is 2 to 4 mm.

[0007] Furthermore, heat dissipation holes are evenly arranged on the stator punching sheets, and the heat dissipation holes can increase the speed of internal air flow when the motor is working, reduce the temperature inside the motor, and extend the working efficiency of the motor.

[0008] Furthermore, a trapezoidal groove is provided at the midpoint of the straight side of the stator punching sheet. The design of the trapezoidal groove can not only reduce the weight of the entire stator punching sheet, but also does not affect the normal heat conduction area of ​​the electronic punching sheet.

[0009] Furthermore, arc chamfers are provided on the straight side edges of the saw teeth. The design of the arc chamfers can increase the contact area between the stator coil and the saw teeth, thereby preventing the stator coil from breaking.

[0010] Furthermore, a waterproof sealing cover is provided between the output end of the rotating shaft and the outer side surface of the shell, and the waterproof sealing cover can improve the waterproof performance of the motor.

[0011] The above-mentioned high-torque waterproof motor stator lamination insulation treatment process is characterized by comprising the following steps:

[0012] 1) Barrel installation

[0013] a. First, select the corresponding box and barrel. The bottom of the barrel is in an inverted cone shape. The barrel is fixedly installed on the top surface of the box with the bottom of the inverted cone facing downward. The top of the barrel is open. The heating plates are evenly installed along the inner wall of the barrel. The inverted cone barrel structure design can not only improve the paint dipping efficiency of the stator punching, but also facilitate the smooth flow of the paint liquid after dipping, which is convenient for subsequent spin drying and drying. The heating block can dry the stator punching;

[0014] b. Then, according to the height of the barrel, select the corresponding first transmission shaft, connect the first transmission shaft vertically in the barrel, and make the bottom end of the first transmission shaft pass through the bottom of the barrel, the first transmission shaft is connected to the barrel through the limit block, and then select the corresponding drive motor according to the design requirements, and fix the drive motor in the box, and connect the bottom end of the first transmission shaft through the gear set, so that the drive motor drives the first transmission shaft to rotate through the gear set, and then drives the stator punching to rotate, so as to improve the paint dipping and drying efficiency of the stator punching;

[0015] c. Then, a suitable first turntable is selected, a limiting hole is opened at the center of the first turntable, and the first cantilever is evenly installed along the outer circumferential side of the first turntable, so that the first cantilever and the first turntable are located in the same plane, and a sleeve rod is vertically connected to one end of the top surface of each first cantilever, and the processed first turntable is sleeved on the first transmission shaft, the top of the first cantilever is flush with the top of the first transmission shaft, and a concave hole is opened at the top of the first transmission shaft. The first cantilever improves the connection strength and stability between the sleeve rod and the first turntable, and improves the stability of the first transmission shaft during rotation;

[0016] d. Select the corresponding end cover according to the size of the barrel body, connect the second transmission shaft at the center of the bottom surface of the end cover, and horizontally install the second turntable on the second transmission shaft. Evenly install the second cantilever along the outer circumferential side of the second turntable so that the second cantilever and the second turntable are located in the same horizontal plane. Install the first fastening rod at the center of the bottom surface of the second turntable, and install the second fastening rod at the end of the bottom surface of each second cantilever so that the first fastening rod matches the concave hole on the first transmission shaft, and the second fastening rod matches the hole on the sleeve rod. The second transmission shaft can play a limiting role. The first fastening rod improves the stability of the top end of the first transmission shaft. The second fastening rod and the second cantilever can limit the top end of the sleeve rod to prevent the stator punching on the sleeve rod from moving up and down during rotation, which affects the paint dipping efficiency of the stator punching;

[0017] e. Finally, the lifting blocks are symmetrically installed along the two sides of the end cover, and the cylinders are symmetrically installed on the top surface of the box body. The cylinders are connected to the corresponding lifting blocks through piston rods. The lifting blocks are driven up and down by the cylinders through the piston rods, thereby realizing the opening or closing of the end cover;

[0018] The installation method of the barrel body has simple steps, which can not only place each stator punching piece to be dipped in paint evenly and orderly to prevent the stator punching piece from colliding with the inner wall of the barrel body during the dip-painting process, but also improve the dip-painting efficiency of the stator punching piece, shorten the process steps of the insulation treatment of the stator punching piece, and reduce the use of equipment.

[0019] 2) Installation of paint liquid circulation system

[0020] a. First, make a corresponding paint storage box according to the design requirements, fix the paint storage box inside the box, and horizontally install a paint introduction pipe on one side of the paint storage box. Select a suitable liquid inlet pipe according to the distance between the paint storage box and the end cover, install a liquid inlet valve and a liquid inlet pump on the liquid inlet pipe, connect the end cover and the paint storage box at both ends of the liquid inlet pipe respectively, inject the paint into the paint storage box through the paint introduction pipe for storage, and the liquid inlet pipe can transport the paint from the paint storage box to the barrel. The liquid inlet valve is convenient for controlling the switch of the liquid inlet pipe, and the liquid inlet pump can provide power for the transportation of the paint;

[0021] b. Then, make the corresponding paint filter box according to the design requirements, install the filter screen horizontally in the paint filter box, and install a protective door on one side of the paint filter box so that the protective door is located above the paint filter box. The processed paint filter box is fixedly installed in the box. The design of the filter screen is convenient for filtering the particulate impurities in the paint liquid, and the residue on the filter screen can be cleaned through the protective door;

[0022] c. Then, the bottom of the barrel is connected to the paint liquid filter box through the liquid outlet pipe, and the liquid outlet valve is installed on the liquid outlet pipe. Then, the bottom end of the paint liquid filter box is connected to the paint liquid storage box through the reflux pipe, and the reflux valve and reflux pump are installed on the reflux pipe. The connection of each pipeline is sealed, and the filtered paint liquid is input into the paint liquid storage box through the reflux pipe to realize recycling. The liquid outlet valve is used to control the switch of the liquid outlet pipe, and the reflux valve is used to control the switch of the reflux pipe. The reflux pump can provide power for the transportation of the paint liquid;

[0023] The design of the paint liquid circulation system can not only realize the recycling of paint liquid and reduce the waste of paint liquid, but also improve the effect of paint immersion, facilitate the filtering of residues and prevent clogging of pipelines.

[0024] 3) One-time varnishing treatment

[0025] a. First, according to the design requirements, the required paint liquid is injected into the paint liquid storage box through the paint liquid introduction tube, and then the support columns are installed in the positioning holes on the processed stator punching sheets in turn. The length of each support column is greater than the thickness of the positioning punching sheet by 1mm, and the stator punching sheets are sleeved on each sleeve rod in turn, so that the upper and lower adjacent stator punching sheets are separated by the support columns. When installing the support columns on the bottom and top positioning punching sheets, first install the support cover on the bottom surface of the bottom positioning punching sheet, and then install the limit cover along the top surface of the top positioning punching sheet. After one immersion painting is completed, remove the support cover and the limit cover. Through the design of the support cover, all the support columns can be supported and positioned. The vertical section of the support column is an isosceles trapezoidal structure from top to bottom to prevent the stator punching sheet from sliding downward during rotation. The support column is convenient for separating the upper and lower adjacent stator punching sheets, thereby improving the immersion painting efficiency.

[0026] b. After all the stator punching sheets are loaded, the piston rod is driven to move by the cylinder, and the end cover is further driven to move downward by the lifting block until it is completely sealed with the barrel body. At this time, the first fastening rod is inserted into the first transmission shaft, and the second fastening rod is inserted into the corresponding sleeve rod, which is convenient for limiting the top end of the sleeve rod, thereby improving the safety and reliability of the stator punching sheets during varnish dipping and drying;

[0027] c. Open the liquid inlet valve, start the liquid inlet pump, and continuously inject the paint liquid in the paint liquid storage tank into the barrel through the liquid inlet pipe until the liquid level in the barrel submerges all the stator punching sheets, close the liquid inlet pump and the liquid inlet valve, start the drive motor, the speed of the drive motor is 100-150r / min, and the first transmission shaft is driven by the drive motor to rotate to achieve the paint immersion treatment of the stator punching sheet. The first transmission shaft is driven by the drive motor to rotate, so that the stator punching sheet can rotate in the paint liquid, thereby improving the paint immersion efficiency of the stator punching sheet;

[0028] The one-time varnishing treatment has simple process steps, which can not only realize varnishing of most of the outer surface area of ​​the stator punching sheet, but also facilitate the orderly placement and easy removal of the stator punching sheet, thereby improving the processing efficiency of subsequent treatment of the stator punching sheet.

[0029] 4) Secondary varnishing treatment

[0030] a. After the varnishing treatment is completed, start the liquid outlet valve to let the paint liquid in the barrel flow into the paint liquid filter box through the liquid outlet pipe. After all the paint liquid flows out, close the liquid outlet valve, drive the piston rod upward through the cylinder, and then drive the end cover upward through the lifting block to open the end cover, remove the support column on each stator punching sheet in the barrel, and remove the support cover and limit cover at the same time;

[0031] b. Then close the end cover through the cylinder, open the liquid inlet valve, start the liquid inlet pump, inject the paint liquid into the barrel through the liquid inlet pipe, start the drive motor, the speed of the drive motor is 100-150r / min, and the stator punching is driven to rotate through the first transmission shaft to perform secondary varnishing treatment, so as to facilitate the varnishing of the top and bottom stator punchings and the positioning holes on the stator punchings;

[0032] The secondary varnishing treatment can completely varnish the outer surface of the stator punching sheet, thereby improving the insulation treatment quality of the stator punching sheet.

[0033] 5) Drying

[0034] a. After the secondary immersion treatment is completed, open the liquid outlet valve to allow the paint liquid in the barrel to enter the paint liquid filter box through the liquid outlet pipe. At the same time, open the reflux valve and start the reflux pump to allow the paint liquid in the paint liquid filter box to be input into the paint liquid storage box through the reflux pipe, so as to facilitate the recycling of the paint liquid;

[0035] b. After all the paint liquid in the barrel has flowed out, close the liquid outlet valve and the liquid inlet valve, start the drive motor, increase the speed of the drive motor to 500r / min, and rotate for 5 to 10 minutes to improve the drying efficiency of the paint liquid on the surface of the stator punching sheet;

[0036] c. Then turn off the drive motor, open the liquid outlet valve, and the paint liquid in the barrel enters the paint liquid filter box through the liquid outlet pipe;

[0037] The drying treatment method has simple steps, not only improves the rapid drying of the stator punching plate coating liquid, but also reduces the residue, and improves the efficiency and quality of subsequent drying.

[0038] 6) Drying

[0039] a. Start the heating block according to the design requirements, control the heating temperature of the heating block at 280-350°C, and dry the stator punchings for 0.5-1h;

[0040] b. After drying, open the end cover through the cylinder and piston rod, take out the stator punching sheets in the barrel body one by one, clean the barrel body, and carry out the next varnishing treatment;

[0041] The drying process has simple steps and greatly improves the insulation treatment effect of the stator punching sheets.

[0042] Furthermore, after the drying is completed, a corresponding number of stator punching sheets are selected according to the needs, and the stator punching sheets are stacked and stamped to facilitate the installation and positioning of the stator.

[0043] Furthermore, in step 5), after the spin-drying process is completed, the residue filtered in the paint liquid filter box is cleaned to prevent clogging of the pipeline.

[0044] The present invention has the following beneficial effects due to the adoption of the above technical solution:

[0045] 1. The design of the positioning holes facilitates the installation of support columns for each positioning hole of the stator punching sheet during the paint dipping process, so that a gap is created between the upper and lower adjacent stator punching sheets, which facilitates the paint liquid to contact all outer surfaces of the stator punching sheets and improves the insulation effect of the stator punching sheets. The through holes are used to install the rotor to ensure a certain gap between the rotor and the stator. The winding grooves are used to install the stator coils. The design of the arc grooves and the arc transition sections facilitates the installation and positioning of the stator punching sheets, while improving the safety during installation and disassembly to avoid scratches.

[0046] 2. The installation method of the barrel body is simple in steps, which can not only place each stator punching piece to be dipped in paint evenly and orderly to prevent the stator punching piece from colliding with the inner wall of the barrel body during the dip painting process, but also improve the dip painting efficiency of the stator punching piece, shorten the process steps of the stator punching piece insulation treatment, and reduce the use of equipment.

[0047] 3. The design of the paint liquid circulation system can not only realize the recycling of paint liquid and reduce the waste of paint liquid, but also improve the effect of paint immersion, facilitate the filtering of residues and prevent clogging of pipelines.

[0048] 4. The process steps of the one-time varnishing treatment are simple, which can not only realize the varnishing of most of the outer surface of the stator punching sheet, but also facilitate the orderly placement of the stator punching sheet, which is convenient for taking and improving the processing efficiency of the subsequent treatment of the stator punching sheet.

[0049] 5. The secondary varnishing treatment can completely varnish the outer surface of the stator punching sheet to improve the insulation treatment quality of the stator punching sheet.

[0050] 6. The drying treatment method has simple steps, which not only improves the rapid drying of the stator punching plate paint liquid, but also reduces the residue and improves the efficiency and quality of subsequent drying.

[0051] 7. The drying process has simple steps and greatly improves the insulation treatment effect of the stator punching sheets. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] The present invention will be further described below in conjunction with the accompanying drawings:

[0053] Figure 1 It is a structural schematic diagram of the high torque waterproof motor of the present invention;

[0054] Figure 2 It is a structural schematic diagram of the stator punching sheet in the present invention;

[0055] Figure 3 It is a structural schematic diagram of the sawtooth in the present invention;

[0056] Figure 4 It is a schematic diagram of the structure between the barrel body and the box body in the present invention;

[0057] Figure 5 is a schematic diagram of the connection between the first cantilever and the first rotating disk in the present invention;

[0058] Figure 6 It is a schematic structural diagram of the paint liquid filter box in the present invention.

[0059] In the figure: 1-housing; 2-rotating shaft; 3-rotor; 4-stator; 5-waterproof sealing cover; 6-stator punching plate; 7-through hole; 8-serration; 9-winding groove; 10-heat dissipation hole; 11-positioning hole; 12-trapezoidal groove; 13-arc groove; 14-arc transition section; 15-box; 16-barrel; 17-paint liquid filter box; 18-paint liquid storage box; 19-liquid outlet pipe; 20-liquid outlet valve; 21-return pipe; 22-return pump; 23-return Flow valve; 24-liquid inlet pipe; 25-liquid inlet pump; 26-liquid inlet valve; 27-end cover; 28-drive motor; 29-first transmission shaft; 30-first turntable; 31-first cantilever; 32-sleeve rod; 33-second transmission shaft; 34-second turntable; 35-second cantilever; 36-first fastening rod; 37-second fastening rod; 38-heating plate; 39-lifting block; 40-cylinder; 41-piston rod; 42-protective door; 43-filter screen. DETAILED DESCRIPTION

[0060] like Figures 1 to 6 As shown, the high-torque waterproof motor of the present invention includes a housing 1, a rotating shaft 2, a stator 4 and a rotor 3. The rotor 3 is fixedly connected to the rotating shaft 2, and the rotating shaft 2 is rotatably connected to the housing 1. A waterproof sealing cover 5 is arranged between the output end of the rotating shaft 2 and the outer side surface of the housing 1. The waterproof sealing cover 5 can improve the waterproof performance of the motor.

[0061] The stator 4 is fixedly connected to the inner side of the housing 1. The stator 4 includes a stator punching sheet 6. A through hole 7 is provided at the center of the stator punching sheet 6. Saw teeth 8 are evenly provided on the circumferential side of the through hole 7. A winding groove 9 is formed between two adjacent saw teeth 8. An opening is formed between the inner ends of two adjacent saw teeth 8. The size of the opening is 2 to 4 mm. The straight side edges of the saw teeth 8 are all provided with arc chamfers. The design of the arc chamfers can increase the contact area between the stator 4 coil and the saw teeth 8, and prevent the stator 4 coil from breaking.

[0062] Positioning holes 11 are evenly arranged on the stator punching sheet 6, and the positioning holes 11 are distributed in a ring shape. Arc grooves 13 are arranged at the corners of the stator punching sheet 6. The two ends of the arc grooves 13 are connected to the straight sides of the stator punching sheet 6 through arc transition sections 14. The design of the positioning holes 11 facilitates the installation of support columns for each positioning hole 11 of the stator punching sheet 6 when it is dipped in paint, so that a gap is generated between the upper and lower adjacent stator punching sheets 6, so that the paint liquid can contact all outer surfaces of the stator punching sheet 6, thereby improving the insulation effect of the stator punching sheet 6. The through hole 7 is used to install the rotor 3 to ensure that a certain gap is generated between the rotor 3 and the stator 4. The winding groove 9 is used to install the stator 4 coil. The design of the arc groove 13 and the arc transition section 14 facilitates the installation and positioning of the stator punching sheet 6, and at the same time improves the safety during installation and disassembly to avoid scratches.

[0063] The stator sheet 6 is evenly provided with heat dissipation holes 10, which can increase the speed of the internal air flow when the motor is working, reduce the temperature inside the motor, and extend the working efficiency of the motor. The midpoint position of the straight side of the stator sheet 6 is provided with a trapezoidal groove 12. The design of the trapezoidal groove 12 can not only reduce the weight of the entire stator sheet 6, but also does not affect the normal heat conduction area of ​​the electronic sheet.

[0064] The above-mentioned stator lamination insulation treatment process of the high torque waterproof motor includes the following steps:

[0065] 1) Installation of barrel 16

[0066] a. First, select the corresponding box 15 and barrel 16. The bottom of the barrel 16 is in an inverted cone shape. The barrel 16 is fixedly mounted on the top surface of the box 15 with the bottom of the inverted cone facing downward. The top of the barrel 16 is open. The heating plate 38 is evenly mounted along the inner wall of the barrel 16. The inverted cone barrel 16 structure design can not only improve the paint dipping efficiency of the stator punching 6, but also facilitate the smooth flow of the paint liquid after the paint dipping, which is convenient for the subsequent drying and drying process. The heating block can dry the stator punching 6;

[0067] b. Then, according to the height of the barrel body 16, a corresponding first transmission shaft 29 is selected, and the first transmission shaft 29 is vertically connected to the barrel body 16, and the bottom end of the first transmission shaft 29 passes through the bottom of the barrel body 16, and the first transmission shaft 29 is connected to the barrel body 16 through a limit block, and then according to the design requirements, a corresponding drive motor 28 is selected, and the drive motor 28 is fixedly installed in the box body 15. The drive motor 28 is connected to the bottom end of the first transmission shaft 29 through a gear set, so that the drive motor 28 drives the first transmission shaft 29 to rotate through the gear set, and then drives the stator punching 6 to rotate, thereby improving the paint dipping and drying efficiency of the stator punching 6;

[0068] c. Then, select a suitable first turntable 30, open a limiting hole at the center of the first turntable 30, evenly install the first cantilever 31 along the outer circumferential side of the first turntable 30, so that the first cantilever 31 and the first turntable 30 are located in the same plane, and vertically connect the sleeve rod 32 to one end of the top surface of each first cantilever 31, and sleeve the processed first turntable 30 on the first transmission shaft 29. The top of the first cantilever 31 is flush with the top of the first transmission shaft 29, and a concave hole is opened at the top of the first transmission shaft 29. The first cantilever 31 improves the connection strength and stability between the sleeve rod 32 and the first turntable 30, and improves the stability of the first transmission shaft 29 when rotating;

[0069] d. Select the corresponding end cover 27 according to the size of the barrel body 16, connect the second transmission shaft 33 at the center of the bottom surface of the end cover 27, and horizontally install the second turntable 34 on the second transmission shaft 33. Evenly install the second cantilever 35 along the outer circumferential side of the second turntable 34 so that the second cantilever 35 and the second turntable 34 are located in the same horizontal plane. Install the first fastening rod 36 at the center of the bottom surface of the second turntable 34, and install the second fastening rod 37 at the end of the bottom surface of each second cantilever 35 so that the first fastening rod 36 matches the concave hole on the first transmission shaft 29, and the second fastening rod 37 matches the hole on the sleeve rod 32. The second transmission shaft 33 can play a limiting role. The first fastening rod 36 improves the stability of the top end of the first transmission shaft 29. The second fastening rod 37 and the second cantilever 35 can limit the top end of the sleeve rod 32 to prevent the stator punching 6 on the sleeve rod 32 from moving up and down during rotation, thereby affecting the paint dipping efficiency of the stator punching 6.

[0070] e. Finally, the lifting blocks 39 are symmetrically installed along the two sides of the end cover 27, and the cylinders 40 are symmetrically installed on the top surface of the box body 15. The cylinders 40 are connected to the corresponding lifting blocks 39 through the piston rods 41. The lifting blocks 39 are driven up and down by the cylinders 40 through the piston rods 41, thereby realizing the opening or closing of the end cover 27;

[0071] The installation method of the barrel body 16 has simple steps, which can not only place each stator punching 6 to be dipped in paint evenly and orderly to prevent the stator punching 6 from colliding with the inner wall of the barrel body 16 during the dip-painting process, but also improve the dip-painting efficiency of the stator punching 6, shorten the process steps of the insulation treatment of the stator punching 6, and reduce the use of equipment.

[0072] 2) Installation of paint liquid circulation system

[0073] a. First, make a corresponding paint liquid storage box 18 according to the design requirements, fix the paint liquid storage box 18 inside the box body 15, and horizontally install a paint liquid introduction pipe on one side of the paint liquid storage box 18. Select a suitable liquid inlet pipe 24 according to the distance between the paint liquid storage box 18 and the end cover 27, install a liquid inlet valve 26 and a liquid inlet pump 25 on the liquid inlet pipe 24, connect the end cover 27 and the paint liquid storage box 18 at both ends, inject the paint liquid into the paint liquid storage box 18 for storage through the paint liquid introduction pipe, and the liquid inlet pipe 24 can transport the paint liquid from the paint liquid storage box 18 to the barrel body 16. The liquid inlet valve 26 is convenient for controlling the switch of the liquid inlet pipe 24, and the liquid inlet pump 25 can provide power for the transportation of the paint liquid;

[0074] b. Then, a corresponding paint filter box 17 is manufactured according to the design requirements, a filter screen 43 is horizontally installed in the paint filter box 17, and a protective door 42 is installed on one side of the paint filter box 17 so that the protective door 42 is located above the paint filter box 17. The processed paint filter box 17 is fixedly installed in the box body 15. The design of the filter screen 43 is convenient for filtering particulate impurities in the paint liquid, and the residue on the filter screen 43 can be cleaned through the protective door 42;

[0075] c. Then, the bottom of the barrel 16 is connected to the paint liquid filter box 17 through the liquid outlet pipe 19, and the liquid outlet valve 20 is installed on the liquid outlet pipe 19. Then, the bottom end of the paint liquid filter box 17 is connected to the paint liquid storage box 18 through the return pipe 21, and the return valve 23 and the return pump 22 are installed on the return pipe 21. The connection of each pipeline is sealed, and the filtered paint liquid is input into the paint liquid storage box 18 through the return pipe 21 to achieve recycling. The liquid outlet valve 20 is used to control the switch of the liquid outlet pipe 19, and the return valve 23 is used to control the switch of the return pipe 21. The return pump 22 can provide power for the transportation of the paint liquid;

[0076] The design of the paint liquid circulation system can not only realize the recycling of paint liquid and reduce the waste of paint liquid, but also improve the effect of paint immersion, facilitate the filtering of residues and prevent clogging of pipelines.

[0077] 3) One-time varnishing treatment

[0078] a. First, according to the design requirements, the required paint liquid is injected into the paint liquid storage box 18 through the paint liquid introduction tube, and then the support columns are installed in the positioning holes 11 on the processed stator punching sheets 6 in turn. The length of each support column is greater than the thickness of the positioning punching sheet by 1 mm, and the stator punching sheets 6 are sleeved on each sleeve rod 32 in turn, so that the upper and lower adjacent stator punching sheets 6 are separated by the support columns. When installing the support columns on the bottom and top positioning punching sheets, first install the support cover on the bottom surface of the bottom positioning punching sheet, and then install the limit cover along the top surface of the top positioning punching sheet. After one immersion in paint is completed, remove the support cover and the limit cover. Through the design of the support cover, all the support columns can be supported and positioned. The vertical section of the support column is an isosceles trapezoidal structure from top to bottom to prevent the stator punching sheet 6 from sliding downward during rotation. The support column is convenient for separating the upper and lower adjacent stator punching sheets 6, thereby improving the efficiency of immersion in paint.

[0079] b. After all the stator punching sheets 6 are loaded, the piston rod 41 is driven to move by the cylinder 40, and the end cover 27 is further driven to move downward by the lifting block 39 until it is completely sealed with the barrel body 16. At this time, the first fastening rod 36 is inserted into the first transmission shaft 29, and the second fastening rod 37 is inserted into the corresponding sleeve rod 32, so as to limit the top of the sleeve rod 32 and improve the safety and reliability of the stator punching sheets 6 when they are dipped in paint and dried;

[0080] c. Open the liquid inlet valve 26, start the liquid inlet pump 25, and continuously inject the paint liquid in the paint liquid storage tank 18 into the barrel body 16 through the liquid inlet pipe 24 until the liquid level in the barrel body 16 submerges all the stator punching sheets 6, close the liquid inlet pump 25 and the liquid inlet valve 26, start the drive motor 28, the speed of the drive motor 28 is 100-150r / min, and the first transmission shaft 29 is driven by the drive motor 28 to rotate, so as to realize the paint immersion treatment of the stator punching sheets 6. The first transmission shaft 29 is driven by the drive motor 28 to rotate, so that the stator punching sheets 6 can rotate in the paint liquid, thereby improving the paint immersion efficiency of the stator punching sheets 6;

[0081] The process steps of the one-time varnishing treatment are simple, which can not only realize the varnishing of most of the outer surface area of ​​the stator punching sheet 6, but also facilitate the orderly placement and easy handling of the stator punching sheet 6, thereby improving the processing efficiency of the subsequent treatment of the stator punching sheet 6.

[0082] 4) Secondary varnishing treatment

[0083] a. After the varnishing treatment is completed, the liquid outlet valve 20 is started to allow the varnish in the barrel body 16 to flow into the varnish filter box 17 through the liquid outlet pipe 19. After all the varnish flows out, the liquid outlet valve 20 is closed, and the piston rod 41 is driven upward by the cylinder 40, and then the end cover 27 is driven upward by the lifting block 39 to open the end cover 27, and the support column on each stator punching sheet 6 in the barrel body 16 is removed, and the support cover and the limit cover are removed at the same time;

[0084] b. Then, the end cover 27 is closed by the cylinder 40, the liquid inlet valve 26 is opened, and the liquid inlet pump 25 is started to inject the paint liquid into the barrel body 16 through the liquid inlet pipe 24, and the drive motor 28 is started. The speed of the drive motor 28 is 100-150r / min, and the stator punching sheet 6 is driven to rotate through the first transmission shaft 29 to perform a secondary varnishing treatment, so as to facilitate the varnishing of the top and bottom stator punching sheets 6 and the positioning holes 11 on the stator punching sheets 6;

[0085] The secondary varnishing treatment can completely varnish the outer surface of the stator punching sheet 6 , thereby improving the insulation treatment quality of the stator punching sheet 6 .

[0086] 5) Drying

[0087] a. After the secondary immersion treatment is completed, the liquid outlet valve 20 is opened to allow the paint liquid in the barrel 16 to enter the paint liquid filter box 17 through the liquid outlet pipe 19. At the same time, the reflux valve 23 is opened and the reflux pump 22 is started to allow the paint liquid in the paint liquid filter box 17 to be input into the paint liquid storage box 18 through the reflux pipe 21, so as to facilitate the recycling of the paint liquid;

[0088] b. After all the paint liquid in the barrel 16 flows out, close the liquid outlet valve 20 and the liquid inlet valve 26, start the drive motor 28, increase the speed of the drive motor 28 to 500r / min, and rotate for 5 to 10min to improve the drying efficiency of the paint liquid on the surface of the stator punching sheet 6;

[0089] c. Then, the driving motor 28 is turned off, and the liquid outlet valve 20 is opened, and the paint liquid in the barrel 16 enters the paint liquid filter box 17 through the liquid outlet pipe 19;

[0090] The drying treatment method has simple steps, which not only improves the rapid drying of the paint liquid on the stator punching sheet 6, but also reduces the residue, thereby improving the efficiency and quality of subsequent drying.

[0091] 6) Drying

[0092] a. Start the heating block according to the design requirements, control the heating temperature of the heating block at 280-350°C, and dry the stator punching sheet 6 for 0.5-1h;

[0093] b. After drying, the end cover 27 is opened through the cylinder 40 via the piston rod 41, the stator punchings 6 in the barrel body 16 are taken out in turn, and the barrel body 16 is cleaned for the next varnishing treatment;

[0094] The drying process has simple steps and greatly improves the insulation effect of the stator punching sheet 6 .

[0095] Furthermore, after the drying is completed, a corresponding number of stator punching sheets 6 are selected according to the needs, and the stator punching sheets 6 are stacked and stamped to facilitate the installation and positioning of the stator 4.

[0096] Furthermore, in step 5), after the spin-drying process is completed, the residue filtered in the paint liquid filter box 17 is cleaned to prevent clogging of the pipeline.

[0097] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to achieve basically the same technical effects are all included in the protection scope of the present invention.

Claims

1. A process for insulating the stator punching sheets of a high-torque waterproof motor, wherein the high-torque waterproof motor comprises a housing, a rotating shaft, a stator and a rotor, wherein the rotor is fixedly connected to the rotating shaft, the rotating shaft is rotatably connected to the housing, and the stator is fixedly connected to the inner side of the housing. Features: The stator comprises a stator punching sheet, a through hole is arranged at the center of the stator punching sheet, saw teeth are evenly arranged on the circumferential side of the through hole, a winding groove is formed between two adjacent saw teeth, positioning holes are evenly arranged on the stator punching sheet, the positioning holes are distributed in an annular shape, arc grooves are arranged at the corners of the stator punching sheet, and both ends of the arc grooves are connected to the straight side of the stator punching sheet through an arc transition section; the processing process comprises the following steps: 1) Barrel installation a. First, select the corresponding box and barrel. The bottom of the barrel is in an inverted cone shape. The barrel is fixedly installed on the top surface of the box with the bottom of the inverted cone facing downward. The top of the barrel is open, and the heating plates are evenly installed along the inner wall of the barrel. b. Then, according to the height of the barrel, a corresponding first transmission shaft is selected, the first transmission shaft is vertically connected to the barrel, and the bottom end of the first transmission shaft passes through the bottom of the barrel. The first transmission shaft is connected to the barrel through a limit block. Then, according to the design requirements, a corresponding drive motor is selected, the drive motor is fixedly installed in the box, and the drive motor is connected to the bottom end of the first transmission shaft through a gear set; c. Then, select a suitable first turntable, open a limit hole at the center of the first turntable, evenly install the first cantilever along the outer circumferential side of the first turntable, so that the first cantilever and the first turntable are located in the same plane, and vertically connect a sleeve rod to one end of the top surface of each first cantilever, sleeve the processed first turntable on the first transmission shaft, and the top of the first cantilever is flush with the top of the first transmission shaft, and a concave hole is opened at the top of the first transmission shaft; d. Select the corresponding end cover according to the size of the barrel body, connect the second transmission shaft to the center of the bottom surface of the end cover, horizontally install the second turntable on the second transmission shaft, evenly install the second cantilever along the outer circumferential side of the second turntable, so that the second cantilever and the second turntable are located in the same horizontal plane, install the first fastening rod at the center of the bottom surface of the second turntable, install the second fastening rod at the end of the bottom surface of each second cantilever, so that the first fastening rod matches the concave hole on the first transmission shaft, and the second fastening rod matches the hole on the sleeve rod; e. Finally, the lifting blocks are symmetrically installed along the two sides of the end cover, and the cylinders are symmetrically installed on the top surface of the box body, and the cylinders are connected to the corresponding lifting blocks through piston rods; 2) Installation of paint liquid circulation system a. First, make the corresponding paint liquid storage box according to the design requirements, fix the paint liquid storage box inside the box, and horizontally install the paint liquid introduction pipe on one side of the paint liquid storage box. Select a suitable liquid inlet pipe according to the distance between the paint liquid storage box and the end cover, install the liquid inlet valve and the liquid inlet pump on the liquid inlet pipe, and connect the two ends of the liquid inlet pipe to the end cover and the paint liquid storage box respectively; b. Then, make the corresponding paint filter box according to the design requirements, install the filter screen horizontally in the paint filter box, and install a protective door on one side of the paint filter box so that the protective door is located above the paint filter box, and fix the processed paint filter box in the box; c. Then connect the bottom of the barrel to the paint liquid filter box through the liquid outlet pipe, install the liquid outlet valve on the liquid outlet pipe, and then connect the bottom end of the paint liquid filter box to the paint liquid storage box through the reflux pipe, and install the reflux valve and reflux pump on the reflux pipe, and seal each pipe connection; 3) One-time varnishing treatment a. First, according to the design requirements, the required paint liquid is injected into the paint liquid storage box through the paint liquid introduction tube, and then the support columns are installed in the positioning holes on the processed stator punching sheets in turn. The length of each support column is greater than the thickness of the positioning punching sheet by 1mm, and the stator punching sheets are sleeved on each sleeve rod in turn, so that the upper and lower adjacent stator punching sheets are separated by the support columns. When installing the support columns on the bottom and top positioning punching sheets, first install the support cover on the bottom surface of the bottom positioning punching sheet, and then install the limit cover along the top surface of the top positioning punching sheet. After the first dip painting is completed, remove the support cover and the limit cover; b. After all the stator punching sheets are loaded, the piston rod is driven to move by the cylinder, and the end cover is further driven to move downward by the lifting block until it is completely sealed with the barrel body. At this time, the first fastening rod is inserted into the first transmission shaft, and the second fastening rod is inserted into the corresponding sleeve rod; c. Open the liquid inlet valve, start the liquid inlet pump, and continuously inject the paint liquid in the paint storage tank into the barrel through the liquid inlet pipe until the liquid level in the barrel submerges all the stator punchings. Close the liquid inlet pump and the liquid inlet valve, start the drive motor, and the speed of the drive motor is 100-150r / min. The first transmission shaft is driven by the drive motor to rotate, so as to realize the paint immersion treatment of the stator punchings; 4) Secondary varnishing treatment a. After the varnishing treatment is completed, start the liquid outlet valve to let the paint liquid in the barrel flow into the paint liquid filter box through the liquid outlet pipe. After all the paint liquid flows out, close the liquid outlet valve, drive the piston rod upward through the cylinder, and then drive the end cover upward through the lifting block to open the end cover, and remove the support column on each stator punching sheet in the barrel; b. Then close the end cover through the cylinder, open the liquid inlet valve, start the liquid inlet pump, inject the paint liquid into the barrel through the liquid inlet pipe, start the drive motor, the speed of the drive motor is 100-150r / min, and drive the stator punching sheet to rotate through the first transmission shaft to perform secondary varnishing treatment; 5) Drying a. After the secondary immersion treatment is completed, open the liquid outlet valve to allow the paint liquid in the barrel to enter the paint liquid filter box through the liquid outlet pipe. At the same time, open the reflux valve and start the reflux pump to allow the paint liquid in the paint liquid filter box to be input into the paint liquid storage box through the reflux pipe; b. After all the paint liquid in the barrel has flowed out, close the liquid outlet valve and the liquid inlet valve, start the drive motor, increase the speed of the drive motor to 500r / min, and rotate for 5 to 10 minutes; c. Then turn off the drive motor, open the liquid outlet valve, and the paint liquid in the barrel enters the paint liquid filter box through the liquid outlet pipe; 6) Drying a. Start the heating block according to the design requirements, control the heating temperature of the heating block at 280-350°C, and dry the stator punchings for 0.5-1h; b. After drying, open the end cover through the cylinder and piston rod, take out the stator punching sheets in the barrel body one by one, clean the barrel body and carry out the next paint dipping process.

2. According to claim 1, the stator lamination insulation treatment process of the high torque waterproof motor, Features: An opening is formed between the inner ends of two adjacent saw teeth, and the size of the opening is 2-4 mm.

3. According to the insulation treatment process of the stator punching sheet of the high torque waterproof motor in claim 1, Features: The stator punching sheets are evenly provided with heat dissipation holes.

4. According to claim 1, the stator lamination insulation treatment process of the high torque waterproof motor, Features: A trapezoidal groove is arranged at the midpoint of the straight side of the stator punching sheet.

5. According to claim 1, the stator lamination insulation treatment process of the high torque waterproof motor, Features: The straight side edges of the saw teeth are all provided with circular arc chamfers.

6. The stator lamination insulation treatment process of the high torque waterproof motor according to claim 1, Features: A waterproof sealing cover is arranged between the output end of the rotating shaft and the outer side surface of the shell.

7. The stator lamination insulation treatment process of the high torque waterproof motor according to claim 1, Features: After the drying is completed, a corresponding number of stator punching sheets are selected according to the needs, and the stator punching sheets are stacked and stamped into shape.

8. The insulation treatment process for stator punching sheets of a high torque waterproof motor according to claim 1, Features: In step 5), after the sun drying process is completed, the residue filtered out of the paint liquid filter box is cleaned.

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