Motor stator winding paint dipping equipment and paint dipping method

Abstract

The invention belongs to the technical field of motor stator winding paint dipping, and particularly relates to a motor stator winding paint dipping device and method, and the device comprises a housing, a multi-degree-of-freedom traction limiting mechanism, a pre-drying cleaning mechanism, a paint dipping mechanism, and a diversion drying mechanism. The multi-degree-of-freedom traction limiting mechanism is fixedly arranged in the machine shell, the multi-degree-of-freedom traction limiting mechanism comprises a lead screw, an assembly fixing block, a rotary assembly part and a pair of traction conveying parts, and the lead screw is rotationally assembled above the machine shell. The pre-drying cleaning mechanism, the paint dipping mechanism and the flow guide drying mechanism are sequentially arranged in the machine shell. According to the paint dipping equipment and the paint dipping method for the motor stator winding, the motor stator winding to be subjected to paint dipping can be cleaned and pre-dried, so that the cleanliness of the motor stator winding is ensured, and adverse effects of subsequent impurities and temperature on the paint dipping quality of the motor stator winding are avoided; and the paint dipping treatment effect on the motor stator winding is obviously improved.

Description

Technical Field

[0001] This invention belongs to the field of motor stator winding impregnation technology, specifically relating to motor stator winding impregnation equipment and impregnation method. Background Technology

[0002] Motor stator winding impregnation equipment is a type of equipment used for the impregnation process of motor stator windings. Through the impregnation process, insulating varnish is filled between the winding and the stator core, thereby forming a continuous insulating protective film on the outside of the winding and the stator core. This improves the insulation performance, mechanical strength, and heat dissipation capacity of the motor stator winding. Among these factors, impregnation pressure, impregnation temperature, winding structure, enameled wire quality, and the cleanliness and temperature of the winding's outer surface are the key factors affecting the quality of motor stator winding impregnation.

[0003] In the existing technology, most motor stator winding impregnation equipment cannot clean and pre-dry the motor stator windings to be treated. This makes the motor stator windings susceptible to surface impurities or temperature effects, resulting in poor impregnation uniformity and surface consistency. Although some motor stator windings have undergone cleaning and pre-drying treatment before impregnation, these motor stator windings need to be transferred after cleaning or pre-drying. During the transfer process, external impurities or cold air can also have an adverse effect on the cleanliness and temperature of the motor stator windings, which will also result in poor impregnation quality.

[0004] Therefore, in order to address the above-mentioned technical problems, it is necessary to provide a motor stator winding impregnation equipment and impregnation method.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of the invention and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0006] The purpose of this invention is to provide an equipment and method for impregnating motor stator windings, which can ensure the cleaning and pre-baking effect of motor stator windings and improve the impregnation quality of motor stator windings.

[0007] To achieve the above objectives, a specific embodiment of the present invention provides the following technical solution:

[0008] A motor stator winding impregnation device includes: a housing, a multi-degree-of-freedom traction and limiting mechanism, a pre-drying and cleaning mechanism, an impregnation mechanism, and a flow guiding and drying mechanism.

[0009] The multi-degree-of-freedom traction limiting mechanism is fixedly installed inside the machine housing. The multi-degree-of-freedom traction limiting mechanism includes a lead screw, an assembly fixing block, a rotary assembly component, and a pair of traction conveying components. The lead screw is rotatably assembled on the upper part of the machine housing. The assembly fixing block is threaded onto the outer side of the lead screw. The rotary assembly component is rotatably assembled below the assembly fixing block. The pair of traction conveying components are used to traction and convey the motor stator winding.

[0010] The pre-drying cleaning mechanism, the varnish impregnation mechanism, and the flow guiding drying mechanism are sequentially arranged inside the machine housing. The pre-drying cleaning mechanism is used to spray and soak the motor stator winding for cleaning and pre-drying. The varnish impregnation mechanism is used to impregnate the motor stator winding. The flow guiding drying mechanism is used to dry the motor stator winding.

[0011] In one or more embodiments of the present invention, a fixing plate is fixedly provided at both the inlet and outlet of the housing, and a pair of support brackets are fixedly provided on the fixing plate. The cooperation of the fixing plate and the support brackets can support and limit the motor stator windings to be processed and processed. A lead screw motor is fixedly provided on the outside of the housing, and the output shaft of the lead screw motor is fixedly connected to the lead screw. By controlling the operation of the lead screw motor to drive the lead screw to rotate, the horizontal transportation state of the assembly fixing block can be controlled.

[0012] In one or more embodiments of the present invention, a collar is fixedly disposed above the assembly fixing block, and a guide light rod is slidably mounted inside the collar, the guide light rod being fixedly connected to the inner wall of the housing. The assembly fixing block can be slidably guided by the sliding engagement between the collar and the guide light rod.

[0013] In one or more embodiments of the present invention, the rotary assembly component includes a rotary worktable, a fixed rotating shaft, a drive gear, a transmission gear, and a rotary motor. The rotary worktable is disposed below the assembly fixing block, and the fixed rotating shaft is fixedly disposed above the rotary worktable and rotatably connected to the assembly fixing block. The rotation of the rotary worktable is limited by the engagement of the fixed rotating shaft with the assembly fixing block. The drive gear is fixedly sleeved on one end of the fixed rotating shaft located within the assembly fixing block, and the transmission gear is meshed with one side of the drive gear. The rotary motor is fixedly disposed above the assembly fixing block, and the output shaft of the rotary motor is fixedly connected to the transmission gear. By controlling the operation of the rotary motor, the transmission gear is rotated, thereby driving the fixed rotating shaft to rotate through the meshing of the drive gear and the transmission gear.

[0014] In one or more embodiments of the present invention, the traction conveying component includes a take-up reel, a take-up motor, a traction rope, a positioning ring, and a traction rod. The take-up reel is rotatably disposed below the rotary table, and the take-up motor is fixedly mounted below the rotary table, with its output shaft fixedly connected to the take-up reel. By controlling the operation of the take-up motor to drive the take-up reel to rotate, the traction rope can be wound and released by controlling the rotation of the take-up reel. The traction rope is wound around the bottom of the take-up reel. The traction rope pulls and limits the positioning ring. The positioning ring is fixedly connected to the lead-out end of the traction rope, and the traction rod is rotatably mounted inside the positioning ring. The traction rod can pull and limit the motor stator winding.

[0015] In one or more embodiments of the present invention, the pre-drying and cleaning mechanism includes a partition, a filter spray cleaning component, and a heat recovery pre-drying and cleaning component. A cleaning chamber is formed between the partition and the housing, and the cleaning chamber is filled with a cleaning liquid. The cleaning liquid cleans the motor stator windings, thereby ensuring the cleanliness of the motor stator windings.

[0016] In one or more embodiments of the present invention, the filtration spray cleaning component includes a return cylinder, a filter cylinder, a return pipe, a delivery pipe, a guide plate, and multiple sets of nozzles. The return cylinder is fixedly disposed on the outside of the housing. The return cylinder provides space for the filtration of cleaning liquid. The filter cylinder is fixedly disposed inside the return cylinder, and the outer wall of the filter cylinder and the inner wall of the return cylinder form a filtration guide cavity. The filtered cleaning liquid is guided and transported through the filtration guide cavity. The two ends of the return pipe are respectively connected to the cleaning cavity and the return cylinder. This allows the cleaning liquid in the cleaning cavity to be transported along the return pipe to the filter cylinder for impurity filtration. The delivery pipe is fixedly disposed on the top of the return cylinder and is connected to the filtration guide cavity. The cleaning liquid in the filtration guide cavity is discharged through the delivery pipe. The guide plate is connected to one end of the delivery pipe, and multiple sets of nozzles are fixedly disposed on one side of the guide plate. By spraying the cleaning liquid through multiple sets of nozzles, not only can the cleaning liquid be returned, but the motor stator windings can also be sprayed and cleaned.

[0017] In one or more embodiments of the present invention, the heat recovery pre-drying and cleaning component includes a pair of jet pipes, a connecting pipe, an extraction pipe, and an extraction fan. The pair of jet pipes are symmetrically arranged on both sides of the casing and communicate with the cleaning chamber. The jet pipes are used to blow air to clean and pre-dry the motor stator windings located within the cleaning chamber. The connecting pipe is connected to the pair of jet pipes, serving to connect the jet pipes and the extraction pipe. The extraction pipe is connected to the other end of the connecting pipe and is correspondingly arranged with the airflow guiding and drying mechanism. The extraction fan is fixedly installed inside the extraction pipe. By controlling the operation of the extraction fan, the hot airflow generated during drying within the casing can be recovered, guided, and transported.

[0018] In one or more embodiments of the present invention, the impregnation mechanism includes a T-shaped limiting plate and multiple sets of limiting and blocking plates. The T-shaped limiting plate and the partition plate cooperate to form an impregnation chamber and a flow-guiding preheating chamber. The impregnation chamber can collect and store the impregnation liquid. The impregnation chamber is located above the flow-guiding preheating chamber, and the multiple sets of limiting and blocking plates are staggered within the flow-guiding preheating chamber. The multiple sets of limiting and blocking plates can guide the air transported in the flow-guiding preheating chamber, improving the contact effect between the air and the T-shaped limiting plate, thereby improving the effect of auxiliary heating of the impregnation liquid in the impregnation chamber.

[0019] A method for impregnating motor stator windings using an impregnation equipment includes the following steps:

[0020] S1. The stator winding of the motor to be processed can be placed on a pair of support brackets at the feed port of the machine housing. Then, the screw can be driven to rotate by controlling the operation of the screw motor, so that the assembly fixing block can move to the feed port of the machine housing with the rotation of the screw under the action of the internal and external threads.

[0021] S2. Subsequently, by controlling the rotation of a pair of winding motors to drive the winding wheel to rotate, the traction rope is unwound. Then, a pair of traction rods are inserted into the motor stator windings. The traction and limiting process of the motor stator windings is completed by connecting the pair of traction rods by threads.

[0022] S3. After the motor stator winding is pulled to the limit, the winding wheel is wound up by controlling a pair of winding motors. At the same time, the assembly fixing block is driven to move horizontally along the screw by controlling the screw motor, so that the motor stator winding is moved into the cleaning chamber.

[0023] S4. The motor stator winding can be cleaned by immersing the lower part of the motor stator winding in the cleaning solution. During the immersion process, the motor stator winding can be tilted and pulled to a limit by controlling the operation of a pair of winding motors. The motor stator winding can be immersed and cleaned at multiple angles. In addition, the cleaning solution can be filtered and sprayed with impurities through the filter spray cleaning component, and the motor stator winding can be cleaned by spraying.

[0024] S5. At the same time, the hot airflow during the drying process can be recovered by the operation of the exhaust fan, and the recovered hot airflow can be blown towards the motor stator winding along the exhaust pipe, connecting pipe and jet pipe. By blowing air, the motor stator winding can not only be cleaned by blowing air, but also pre-dried.

[0025] S6. After cleaning, the operation of the lead screw motor can be continued to be controlled, and the motor stator winding can be moved into the varnish impregnation chamber. The motor stator winding is impregnated by lowering it.

[0026] S7. After impregnation, the motor stator winding can be dried by the flow drying mechanism. In addition, after drying, step S6 can be repeated to achieve the function of repeated impregnation of the motor stator winding.

[0027] Compared with the prior art, the present invention discloses a motor stator winding impregnation equipment and impregnation method, which can clean and pre-dry the motor stator winding to be impregnated, ensuring the cleanliness of the motor stator winding, avoiding the adverse effects of subsequent impurities and temperature on the impregnation quality of the motor stator winding, and significantly improving the effect of impregnation treatment of motor stator winding. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a front sectional view of a motor stator winding impregnation device according to an embodiment of the present invention;

[0030] Figure 2 for Figure 1 Schematic diagram of the structure at point A in the middle;

[0031] Figure 3 for Figure 1 Schematic diagram of the structure at point B;

[0032] Figure 4 This is a partial structural schematic diagram of a motor stator winding impregnation device according to an embodiment of the present invention;

[0033] Figure 5 for Figure 4 Schematic diagram of the structure at point C;

[0034] Figure 6 This is a schematic diagram of the structure of a multi-degree-of-freedom traction limiting mechanism in one embodiment of the present invention;

[0035] Figure 7 This is a cross-sectional view of a multi-degree-of-freedom traction limiting mechanism in one embodiment of the present invention;

[0036] Figure 8 for Figure 7 Schematic diagram of the structure at point D;

[0037] Figure 9 This is a side sectional view of a motor stator winding impregnation device according to an embodiment of the present invention;

[0038] Figure 10 This is a perspective view of a motor stator winding impregnation device according to an embodiment of the present invention.

[0039] Explanation of key figure labels:

[0040] 1-Machine casing, 2-Multi-degree-of-freedom traction and limiting mechanism, 201-Lead screw, 202-Assembly fixing block, 203-Lead screw motor, 204-Collar, 205-Guide rod, 206-Rotating worktable, 207-Fixed shaft, 208-Drive gear, 209-Transmission gear, 210-Rotary motor, 211-Take-up reel, 212-Take-up motor, 213-Traction rope, 214-Positioning ring, 215-Tethering rod, 3-Pre-drying and cleaning mechanism, 301-Baffle plate, 302-Return cylinder, 303-Filter cartridge, 30 4-Return pipe, 305-Conveying pipe, 306-Guide plate, 307-Nozzle, 308-Air jet pipe, 309-Connecting pipe, 310-Exhaust pipe, 311-Exhaust fan, 4-Immersion coating mechanism, 401-T-shaped limit plate, 402-Limiting and blocking plate, 5-Guiding and drying mechanism, 501-Heating box, 502-Conveying fan, 503-Heating component, 504-Drying conveying pipe, 505-Exhaust plate, 506-Drip limit plate, 507-Guiding air pipe, 508-Dustproof net, 6-Fixing plate, 7-Support bracket. Detailed Implementation

[0041] To enable those skilled in the art to better understand the technical solutions in this disclosure, the technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this disclosure.

[0042] like Figures 1 to 10 As shown, an embodiment of the motor stator winding impregnation equipment of the present invention includes: a housing 1, a multi-degree-of-freedom traction and limiting mechanism 2, a pre-drying and cleaning mechanism 3, an impregnation mechanism 4, and a guiding and drying mechanism 5. In practical applications, the multi-degree-of-freedom traction and limiting mechanism 2 can be used to pull, limit, and transport the motor stator winding to be processed. When the multi-degree-of-freedom traction and limiting mechanism 2 moves the motor stator winding into the pre-drying and cleaning mechanism 3, the motor stator winding can be cleaned, and the impregnation mechanism 4 and the guiding and drying mechanism 5 can be used to impregnate and dry the motor stator winding.

[0043] like Figure 1As shown, a fixing plate 6 is fixedly installed at both the inlet and outlet of the housing 1, and a pair of support brackets 7 are fixedly installed on the fixing plate 6. The fixing plate 6 and the support brackets 7 cooperate to support and limit the motor stator windings to be processed and processed.

[0044] like Figures 4 to 5 As shown, the multi-degree-of-freedom traction and limiting mechanism 2 is fixedly installed inside the housing 1. The multi-degree-of-freedom traction and limiting mechanism 2 includes a lead screw 201, an assembly fixing block 202, a rotary assembly component, and a pair of traction and conveying components. The lead screw 201 is rotatably mounted on the top of the housing 1, and the assembly fixing block 202 is threaded onto the outside of the lead screw 201. The lead screw 201 serves to limit the assembly of the assembly fixing block 202, and the assembly fixing block 202 can slide horizontally under the action of the internal and external threads by controlling the rotation of the lead screw 201.

[0045] like Figures 1 to 2 As shown, a lead screw motor 203 is fixedly installed on the outer side of the housing 1, and the output shaft of the lead screw motor 203 is fixedly connected to the lead screw 201. By controlling the operation of the lead screw motor 203, the lead screw 201 is rotated, thereby controlling the horizontal transport state of the assembly fixing block 202.

[0046] like Figures 4 to 5 As shown, a collar 204 is fixedly installed above the assembly fixing block 202, and a guide rod 205 is slidably mounted inside the collar 204. The guide rod 205 is fixedly connected to the inner wall of the housing 1. The assembly fixing block 202 can be slidably guided by the sliding engagement between the collar 204 and the guide rod 205.

[0047] like Figures 4 to 8 As shown, a rotary assembly component is rotatably mounted below the assembly fixing block 202. The rotary assembly component includes a rotary worktable 206, a fixed rotating shaft 207, a drive gear 208, a transmission gear 209, and a rotary motor 210. The rotary worktable 206 is located below the assembly fixing block 202, and the fixed rotating shaft 207 is fixedly located above the rotary worktable 206 and rotatably connected to the assembly fixing block 202. The rotation of the rotary worktable 206 is limited by the cooperation between the fixed rotating shaft 207 and the assembly fixing block 202.

[0048] like Figures 7 to 8As shown, the drive gear 208 is fixedly sleeved on one end of the fixed rotating shaft 207 located within the mounting block 202. The transmission gear 209 is meshed with one side of the drive gear 208. The rotary motor 210 is fixedly mounted above the mounting block 202, and the output shaft of the rotary motor 210 is fixedly connected to the transmission gear 209. By controlling the operation of the rotary motor 210, the transmission gear 209 is rotated, thereby driving the fixed rotating shaft 207 to rotate through the meshing of the drive gear 208 and the transmission gear 209.

[0049] like Figures 6 to 8 As shown, a pair of traction conveying components are used to traction and convey the stator windings of the motor. The traction conveying components include a take-up reel 211, a take-up motor 212, a connecting rope 213, a positioning ring 214, and a traction rod 215. The take-up reel 211 is rotatably mounted below the rotary table 206, and the take-up motor 212 is fixedly mounted below the rotary table 206, with its output shaft fixedly connected to the take-up reel 211. By controlling the operation of the take-up motor 212, the take-up reel 211 is driven to rotate, thereby controlling the rotation of the take-up reel 211 to wind and unwind the connecting rope 213.

[0050] like Figures 6 to 8 As shown, the tow rope 213 is wound around the bottom of the take-up reel 211. The tow rope 213 pulls and limits the positioning ring 214. The positioning ring 214 is fixedly connected to the lead end of the tow rope 213, and the pull rod 215 is rotatably assembled inside the positioning ring 214. The pull rod 215 can pull and limit the motor stator winding.

[0051] like Figure 1 As shown, the pre-drying cleaning mechanism 3, the varnish impregnation mechanism 4, and the flow guiding drying mechanism 5 are sequentially arranged inside the housing 1. The pre-drying cleaning mechanism 3 is used to spray and soak the motor stator winding for cleaning and pre-drying.

[0052] like Figures 1 to 3 As shown, the pre-drying and cleaning mechanism 3 includes a partition 301, a filter spray cleaning component, and a heat recovery pre-drying and cleaning component. A cleaning chamber is formed between the partition 301 and the housing 1, and the cleaning chamber is filled with cleaning fluid. The cleaning fluid cleans the motor stator windings, thereby ensuring the cleanliness of the motor stator windings.

[0053] like Figures 1 to 3As shown, the filtration spray cleaning component includes a return cylinder 302, a filter cartridge 303, a return pipe 304, a delivery pipe 305, a guide plate 306, and multiple sets of nozzles 307. The return cylinder 302 is fixedly installed on the outside of the housing 1. The return cylinder 302 provides space for the filtration of the cleaning fluid. The filter cartridge 303 is fixedly installed inside the return cylinder 302, and the outer wall of the filter cartridge 303 and the inner wall of the return cylinder 302 form a filtration guide cavity. The filtered cleaning fluid is guided and transported through the filtration guide cavity. The two ends of the return pipe 304 are connected to the cleaning cavity and the return cylinder 302, respectively. This allows the cleaning fluid in the cleaning cavity to be transported along the return pipe 304 to the filter cartridge 303 for impurity filtration.

[0054] like Figures 1 to 3 As shown, the delivery pipe 305 is fixedly installed at the top of the return cylinder 302 and connected to the filter guide cavity. The cleaning fluid in the filter guide cavity is discharged through the delivery pipe 305. The guide plate 306 is connected to one end of the delivery pipe 305, and multiple sets of nozzles 307 are fixedly installed on one side of the guide plate 306. By spraying the cleaning fluid through the multiple sets of nozzles 307, not only can the cleaning fluid be returned, but the motor stator windings can also be sprayed for cleaning.

[0055] like Figures 1 to 4 As shown, the heat recovery pre-drying and cleaning component includes a pair of jet pipes 308, a connecting pipe 309, an extraction pipe 310, and an extraction fan 311. The pair of jet pipes 308 are symmetrically arranged on both sides of the housing 1 and are connected to the cleaning chamber. The pair of jet pipes 308 perform air blowing cleaning and pre-drying treatment on the motor stator windings located in the cleaning chamber. The connecting pipe 309 is connected to the pair of jet pipes 308. The connecting pipe 309 serves to connect the jet pipes 308 and the extraction pipe 310.

[0056] like Figures 1 to 4 As shown, the exhaust pipe 310 is connected to the other end of the connecting pipe 309 and is correspondingly arranged with the air-guiding drying mechanism 5. The exhaust fan 311 is fixedly installed inside the exhaust pipe 310. By controlling the operation of the exhaust fan 311, the hot airflow generated during drying inside the casing 1 can be recovered, guided, and transported.

[0057] like Figure 1 As shown, the impregnation mechanism 4 is used to impregnate the stator windings of the motor. The impregnation mechanism 4 includes a T-shaped limiting plate 401 and multiple sets of limiting and blocking plates 402. The T-shaped limiting plate 401 and the partition plate 301 cooperate to form an impregnation cavity and a flow guiding and preheating cavity. The impregnation liquid can be collected and stored through the impregnation cavity.

[0058] like Figure 1As shown, the impregnation chamber is located above the preheating chamber, and multiple sets of limiting baffles 402 are staggered inside the preheating chamber. The multiple sets of limiting baffles 402 can guide the air transported in the preheating chamber, improving the contact effect between the air and the T-shaped limiting plates 401, thereby improving the effect of auxiliary heating of the impregnation liquid in the impregnation chamber.

[0059] like Figure 1 As shown, the flow-guiding drying mechanism 5 is used to dry the stator windings of the motor. A T-shaped limiting plate 401 and the housing 1 cooperate to form a heating chamber. The flow-guiding drying mechanism 5 includes a heating box 501, a conveying fan 502, a heating component 503, a drying conveying pipe 504, an exhaust plate 505, and a drip limiting plate 506. The heating box 501 is fixedly installed inside the heating chamber, and the conveying fan 502 and the heating component 503 are both installed inside the heating box 501. The conveying fan 502 and the heating component 503 can be assembled, fixed, and used for heating and flow guidance through the heating box 501. One end of the drying conveying pipe 504 is connected to the heating box 501. The drying conveying pipe 504 serves to connect the heating box 501 and the exhaust plate 505.

[0060] like Figure 4 As shown, the exhaust plate 505 is fixedly connected to the other end of the drying conveying pipe 504. The motor stator windings that have been impregnated can be dried by spraying hot air through the exhaust plate 505.

[0061] like Figure 1 As shown, the drip limiting plate 506 is fixedly installed at the top of the heating chamber and inclined towards the impregnation chamber. The drip limiting plate 506 can guide and limit the flow of impregnation liquid dripping from the motor stator windings during the drying process. Furthermore, the drip limiting plate 506's location at the top of the heating chamber allows it to maintain a certain temperature under the influence of hot air within the chamber, further preventing the dripping impregnation liquid from adhering to its surface.

[0062] like Figure 1 As shown, a guide air pipe 507 is fixedly connected between the heating box 501 and the preheating chamber. Air can be extracted from the preheating chamber through the guide air pipe 507. A return air channel is provided inside the partition 301, with its two ends connected to the cleaning chamber and the preheating chamber, respectively. This allows hot air from the cleaning chamber to be transported to the preheating chamber along the return air channel by the conveying fan 502, and then to the heating box 501. This not only allows the hot air to heat the impregnation solution in the impregnation chamber while circulating in the preheating chamber, thereby improving the impregnation effect of the motor stator windings, but also significantly reduces the energy consumption of the heating element 503 in heating the air by recovering the hot air.

[0063] like Figure 1As shown, a dustproof screen 508 is fixedly connected to one end of the return air duct located inside the cleaning chamber. The dustproof screen 508 serves to protect the return air duct from dust, preventing blockage caused by impurities.

[0064] A method for impregnating motor stator windings using an impregnation equipment includes the following steps:

[0065] S1. The stator winding of the motor to be processed can be placed on a pair of support brackets 7 at the feed port of the housing 1. Then, the lead screw 201 can be driven to rotate by controlling the operation of the lead screw motor 203, so that the assembly fixing block 202 can move to the feed port of the housing 1 with the rotation of the lead screw 201 under the action of the internal and external threads.

[0066] S2. Subsequently, by controlling the rotation of a pair of take-up motors 212 to drive the take-up wheel 211 to rotate, the traction rope 213 is unwound. Then, a pair of traction rods 215 are inserted into the motor stator winding. The traction and limiting process of the motor stator winding is completed by the threaded connection of the pair of traction rods 215.

[0067] S3. After the motor stator winding is pulled to the limit, the winding wheel 211 is wound up the traction rope 213 by controlling the operation of a pair of winding motors 212. At the same time, the assembly fixing block 202 is driven to move horizontally along the screw 201 by controlling the operation of the lead screw motor 203, so as to move the motor stator winding into the cleaning chamber.

[0068] S4. The motor stator winding can be cleaned by immersing the lower part of the motor stator winding in the cleaning solution. During the immersion process, the motor stator winding can be tilted and pulled to a limit by controlling the operation of a pair of winding motors 212. In addition, the motor stator winding can be cleaned by immersion at multiple angles by rotating the rotary table 206. Furthermore, the cleaning solution can be filtered and sprayed with impurities through the filter spray cleaning component, and the motor stator winding can be cleaned by spraying.

[0069] S5. At the same time, the hot airflow during the drying process can be recovered by the operation of the exhaust fan 311, and the recovered hot airflow can be blown towards the motor stator winding along the exhaust pipe 310, the connecting pipe 309 and the jet pipe 308. By blowing air, the motor stator winding can not only be cleaned, but also pre-baked. By pre-baking the motor stator winding to 50°~70°, the impregnation effect of the motor stator winding can be improved.

[0070] S6. After cleaning, the operation of the lead screw motor 203 can be continued to move the motor stator winding into the varnish impregnation chamber and the motor stator winding is impregnated by lowering the motor stator winding.

[0071] S7. After impregnation, the motor stator windings after impregnation can be dried by controlling the operation of the conveying fan 502 and the heating component 503 to generate drying hot air, and then discharged through the drying conveying pipe 504 and the exhaust plate 505.

[0072] It will be apparent to those skilled in the art that this disclosure is not limited to the details of the exemplary embodiments described above, and that this disclosure can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of this disclosure is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this disclosure. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0073] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A motor stator winding impregnation equipment, characterized in that, include: chassis; A multi-degree-of-freedom traction limiting mechanism is fixedly installed inside the housing. The multi-degree-of-freedom traction limiting mechanism includes a lead screw, an assembly fixing block, a rotary assembly component, and a pair of traction conveying components. The lead screw is rotatably mounted on the top of the housing. The assembly fixing block is threaded onto the outside of the lead screw. The rotary assembly component is rotatably mounted below the assembly fixing block. The pair of traction conveying components are used to traction and convey the motor stator winding. A pre-drying cleaning mechanism, a paint impregnation mechanism, and a flow guiding drying mechanism are sequentially arranged inside the housing. The pre-drying cleaning mechanism is used to spray and soak the motor stator windings for cleaning and pre-drying. The impregnation mechanism is used to impregnate the motor stator windings with varnish, and the flow-guiding drying mechanism is used to dry the motor stator windings.

2. The motor stator winding impregnation equipment according to claim 1, characterized in that, The inlet and outlet of the machine housing are both fixedly equipped with fixed plates, and a pair of support brackets are fixedly equipped on the fixed plates. A lead screw motor is fixedly equipped on the outside of the machine housing, and the output shaft of the lead screw motor is fixedly connected to the lead screw.

3. The motor stator winding impregnation equipment according to claim 2, characterized in that, A collar is fixedly installed above the assembly fixing block, and a guide light rod is slidably installed inside the collar. The guide light rod is fixedly connected to the inner wall of the housing.

4. The motor stator winding impregnation equipment according to claim 3, characterized in that, The rotary assembly component includes a rotary worktable, a fixed rotating shaft, a drive gear, a transmission gear, and a rotary motor. The rotary worktable is located below the assembly fixing block. The fixed rotating shaft is fixedly located above the rotary worktable and rotatably connected to the assembly fixing block. The drive gear is fixedly sleeved on one end of the fixed rotating shaft located inside the assembly fixing block. The transmission gear is meshed with one side of the drive gear. The rotary motor is fixedly located above the assembly fixing block, and the output shaft of the rotary motor is fixedly connected to the transmission gear.

5. The motor stator winding impregnation equipment according to claim 4, characterized in that, The traction conveying component includes a take-up reel, a take-up motor, a connecting rope, a positioning ring, and a traction rod. The take-up reel is rotatably disposed below the rotary worktable. The take-up motor is fixedly mounted below the rotary worktable. The output shaft of the take-up motor is fixedly connected to the take-up reel. The connecting rope is wound around the bottom of the take-up reel. The positioning ring is fixedly connected to the lead-out end of the connecting rope. The traction rod is rotatably mounted inside the positioning ring.

6. The motor stator winding impregnation equipment according to claim 5, characterized in that, The pre-drying cleaning mechanism includes a partition, a filter spray cleaning component, and a heat recovery pre-drying cleaning component. The partition and the housing cooperate to form a cleaning chamber, which is filled with cleaning liquid.

7. The motor stator winding impregnation equipment according to claim 6, characterized in that, The filtration spray cleaning component includes a return cylinder, a filter cylinder, a return pipe, a delivery pipe, a guide plate, and multiple sets of nozzles. The return cylinder is fixedly installed on the outside of the housing, and the filter cylinder is fixedly installed inside the return cylinder. The outer wall of the filter cylinder and the inner wall of the return cylinder form a filtration guide cavity. The two ends of the return pipe are respectively connected to the cleaning cavity and the return cylinder. The delivery pipe is fixedly installed at the top of the return cylinder and is connected to the filtration guide cavity. The guide plate is connected to one end of the delivery pipe. The multiple sets of nozzles are all fixedly installed on one side of the guide plate.

8. The motor stator winding impregnation equipment according to claim 7, characterized in that, The heat recovery pre-drying cleaning component includes a pair of jet pipes, a connecting pipe, an extraction pipe, and an extraction fan. The pair of jet pipes are symmetrically arranged on both sides of the housing and connected to the cleaning chamber. The connecting pipe is connected to the pair of jet pipes. The extraction pipe is connected to the other end of the connecting pipe and is correspondingly arranged with the air guiding drying mechanism. The extraction fan is fixedly installed inside the extraction pipe.

9. The motor stator winding impregnation equipment according to claim 8, characterized in that, The impregnation mechanism includes a T-shaped limiting plate and multiple sets of limiting and blocking plates. The T-shaped limiting plate and the partition plate cooperate to form an impregnation cavity and a flow guiding and preheating cavity. The impregnation cavity is located above the flow guiding and preheating cavity, and the multiple sets of limiting and blocking plates are staggered in the flow guiding and preheating cavity.

10. A method for impregnating a motor stator winding with varnish as described in claim 9, characterized in that, Includes the following steps: S1. The stator winding of the motor to be processed can be placed on a pair of support brackets at the feed port of the machine housing. Then, the screw can be driven to rotate by controlling the operation of the screw motor, so that the assembly fixing block can move to the feed port of the machine housing with the rotation of the screw under the action of the internal and external threads. S2. Subsequently, by controlling the rotation of a pair of winding motors to drive the winding wheel to rotate, the traction rope is unwound. Then, a pair of traction rods are inserted into the motor stator windings. The traction and limiting process of the motor stator windings is completed by connecting the pair of traction rods by threads. S3. After the motor stator winding is pulled to the limit, the winding wheel is wound up by controlling a pair of winding motors. At the same time, the assembly fixing block is driven to move horizontally along the screw by controlling the screw motor, so that the motor stator winding is moved into the cleaning chamber. S4. The motor stator winding can be cleaned by immersing the lower part of the motor stator winding in the cleaning solution. During the immersion process, the motor stator winding can be tilted and pulled to a limit by controlling the operation of a pair of winding motors. The motor stator winding can be immersed and cleaned at multiple angles. In addition, the cleaning solution can be filtered and sprayed with impurities through the filter spray cleaning component, and the motor stator winding can be cleaned by spraying. S5. At the same time, the hot airflow during the drying process can be recovered by the operation of the exhaust fan, and the recovered hot airflow can be blown towards the motor stator winding along the exhaust pipe, connecting pipe and jet pipe. By blowing air, the motor stator winding can not only be cleaned by blowing air, but also pre-dried. S6. After cleaning, the operation of the lead screw motor can be continued to be controlled, and the motor stator winding can be moved into the varnish impregnation chamber. The motor stator winding is impregnated by lowering it. S7. After impregnation, the motor stator winding can be dried by the flow drying mechanism. In addition, after drying, step S6 can be repeated to achieve the function of repeated impregnation of the motor stator winding.

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