CN110417214B - Stator slot filling and sealing operation device and method - Google Patents
Stator slot filling and sealing operation device and method Download PDFInfo
- Publication number
- CN110417214B CN110417214B CN201910839504.5A CN201910839504A CN110417214B CN 110417214 B CN110417214 B CN 110417214B CN 201910839504 A CN201910839504 A CN 201910839504A CN 110417214 B CN110417214 B CN 110417214B
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- notch
- stator
- cover plate
- ring
- pouring sealant
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- 238000007789 sealing Methods 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000000565 sealant Substances 0.000 claims abstract description 92
- 239000003292 glue Substances 0.000 claims abstract description 29
- 238000004382 potting Methods 0.000 claims abstract description 26
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000007493 shaping process Methods 0.000 claims abstract description 5
- 230000002093 peripheral effect Effects 0.000 claims description 60
- 238000003825 pressing Methods 0.000 claims description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000003365 glass fiber Substances 0.000 description 4
- 239000002390 adhesive tape Substances 0.000 description 3
- 239000004568 cement Substances 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005429 filling process Methods 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
- H02K15/024—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies with slots
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/12—Impregnating, heating or drying of windings, stators, rotors or machines
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The stator notch encapsulating operation device and the method are characterized by comprising a flow guide cover plate and a notch enclosing block, wherein the flow guide cover plate is used for guiding pouring glue to fill and cover a stator notch during encapsulating operation, the notch enclosing block is used for limiting and shaping the poured pouring glue, the notch enclosing block is in a circular ring shape and is arranged on the end face of a stator iron core and is radially positioned and matched with an inner ring of the stator iron core, gaps between the notch enclosing block and the stator iron core are filled in a sealing mode through rubber mud, the flow guide cover plate is in a circular ring shape and coaxially covers the notch enclosing block, and the flow guide cover plate is in a cone shape with gradually reduced outer diameter to inner diameter and protruding upwards. The invention realizes accurate and rapid flow guiding of the glue solution during the potting operation, improves the efficiency of the potting operation, and improves the appearance quality of the potting glue ring and the operability and reliability of the potting operation. After the pouring sealant is solidified, the notch enclosure and the diversion cover plate are easy to pull out, and the appearance quality of the formed pouring sealant ring is not affected.
Description
Technical Field
The invention relates to a stator slot filling and sealing operation device and method, which are used for filling and sealing stator slots.
Background
At present, a slot filling is carried out on a high-speed traction motor stator in a way of filling and sealing slot pouring sealant, and after baking and curing, effective filling is formed, so that foreign matter protection is carried out on a coil slot. The stator notch filling and sealing operation is to fill pouring sealant at the coil notch, and the pouring sealant has good fluidity during filling and sealing, and is not easy to fill and shape. For example: at present, the mode of adopting inner chamber plastic slab and baffle design frock is realized, but there are several shortfalls: firstly, the embedment operation is inconvenient, and during the injecting glue, difficult water conservancy diversion and quick injecting glue, secondly the encapsulating glue effect is not good, and the filling state of embedment glue, liquid level height etc. are uncontrollable, thirdly after the drawing of patterns, the surface appearance quality of embedment glue is poor, unevenness.
CN201410499317.4, a 2MW wind-driven generator notch encapsulating process, provides a 2MW wind-driven generator notch encapsulating process, which comprises the steps of adhering foam double-sided adhesive to the lower edge of the outer surface of transparent composite foil in a flush manner, then winding the foam double-sided adhesive to the notch edge for one circle around the outer circle of the stator, and tensioning; cutting the glass fiber felt into rectangular blocks, filling the rectangular blocks on the surface of the slot wedge, tightly attaching the upper end of the glass fiber felt to the lower end of the foam double faced adhesive tape, and adhering and fixing the glass fiber felt by using a transparent adhesive tape; pouring sealant into the bottom of the transparent composite foil to finish pouring. According to the potting process for the notch of the 2MW wind driven generator, disclosed by the invention, the surface of the slot wedge is filled with the glass fiber felt, and then the transparent adhesive tape is used for sticking and fixing, so that the outer surface of the whole 2MW stator is similar to the surface of a cylinder, the potting adhesive leakage during potting of the notch of the 2MW direct-drive permanent magnet wind driven generator can be effectively prevented, and the surface is smooth and attractive after the notch potting adhesive is solidified and formed. In this scheme, the water conservancy diversion position to the pouring sealant is accurate inadequately, and can't judge the filling quantity when the pouring sealant, and the rubber ring outward appearance quality is poor after the solidification is uneven.
Disclosure of Invention
The stator slot filling and sealing operation device and method provided by the invention realize accurate and rapid flow guide of glue solution during filling and sealing operation, improve filling and sealing operation efficiency, and improve appearance quality of filling and sealing glue rings and operability and reliability of filling and sealing operation.
After the pouring sealant is solidified, the notch enclosure and the diversion cover plate are easy to pull out, and the appearance quality of the formed pouring sealant ring is not affected.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the utility model provides a stator notch embedment operation device, its characterized in that includes when the embedment operation to the pouring sealant water conservancy diversion makes the pouring sealant fill and cover the water conservancy diversion apron of stator notch and the notch that carries out spacing and shaping to the pouring sealant that fills enclose the shelves, the notch enclose shelves be the ring shape, place on the stator core terminal surface and with stator core inner ring radial positioning cooperation, the notch encloses shelves and stator core between the gap pass through rubber mud seal packing, the water conservancy diversion apron is the ring shape and coaxial lid encloses shelves on the notch, the water conservancy diversion apron is by outside to inside diameter taper and bellied awl shape that makes progress gradually.
Preferably, the notch enclose the shelves bottom have with stator core inner ring radial positioning complex location card foot, location card foot is along notch enclose shelves lower surface evenly distributed, the notch encloses the periphery lateral wall of shelves and is the cylinder wall that sets up along the axial, the lateral surface of location card foot flushes with the periphery lateral wall, the rubber mud fills between notch encloses shelves bottom and stator core.
Preferably, when the end surface of the stator core is free of a pressing ring, the stator notch encapsulating operation device further comprises a peripheral baffle ring coaxially arranged on the periphery of the notch enclosure, the peripheral baffle ring is arranged on the periphery of the stator core notch, the bottom of the peripheral baffle ring is in sealing connection with the end surface of the stator core through fastening glue, an annular launder is formed between the peripheral baffle ring and the peripheral side wall, and the stator notch is positioned in the annular launder.
Preferably, the outer diameter of the diversion cover plate is smaller than the outer edge diameter of the upper surface of the notch enclosure by 2-3 mm.
Preferably, the lower surface of the notch enclosure is an annular plane, the upper surface is a conical surface with gradually reduced diameter from the inner side of the upper edge of the peripheral side wall and protruding upwards, the conical angle of the upper surface of the notch enclosure is unequal to the conical angle of the diversion cover plate, and an annular overflow space is formed between the notch enclosure and the diversion cover plate.
Preferably, the inner edge of the upper surface of the notch enclosure is a chamfer edge parallel to the lower surface of the notch enclosure.
The stator slot filling and sealing operation method adopts the stator slot filling and sealing operation device to perform filling and sealing operation, and comprises the following steps: the method comprises the steps of firstly, radially positioning and matching a notch enclosure with an inner ring of a stator core, sealing and filling gaps between the notch enclosure and the stator core through rubber mud, and covering a diversion cover plate on the notch enclosure; uniformly pouring sealant along the circumferential direction of the diversion cover plate until the stator notch is filled and covered; thirdly, waiting for pouring sealant to be solidified at the annular launder to form a pouring sealant ring; finally, the diversion cover plate and the notch surrounding block are sequentially pulled out, and then rubber mud on the stator core slot wedge is cleaned, so that the filling and sealing of the stator notch is realized.
Preferably, when the pressing ring is fixed on the end face of the stator core, an annular launder is formed between the inner ring of the pressing ring and the outer peripheral side wall after the first step; when the end face of the stator core is free of the pressing ring, a peripheral baffle ring is arranged on the periphery of a notch of the stator core before the first step is carried out, and an annular launder is formed between the peripheral baffle ring and the peripheral side wall after the first step is carried out.
Preferably, the concrete method for uniformly pouring the pouring sealant along the circumferential direction of the diversion cover plate is as follows: pouring sealant slowly along the circumferential direction from a certain position of the flow guide cover plate, guiding the pouring sealant into the annular launder from the flow guide cover plate, and stopping pouring sealant when the annular launder is filled and the pouring sealant overflows to the upper surface of the notch enclosure.
Preferably, the thickness of the pouring sealant ring formed at the notch of the stator is adjusted by adjusting the axial height of the peripheral side wall of the notch enclosure and the peripheral baffle ring.
The invention has the beneficial effects that:
1. according to the invention, the notch fence is used as a protective ring for centering the iron core during potting operation, gaps between the notch fence and the stator iron core are filled through rubber mud in a sealing manner, glue solution is prevented from flowing into an inner cavity of the stator iron core during potting operation, the reliability and effectiveness of the potting operation are improved, the guide cover plate covers the notch fence and is in an upward protruding conical shape, the glue solution is poured from the guide cover plate, the stator notch is poured through the guide of the guide cover plate, and an annular glue ring is formed at the position of the stator notch, so that the glue solution is accurately and quickly guided during potting operation, and the potting operation efficiency is improved.
2. The method comprises the steps that a positioning clamping foot at the bottom of a notch enclosing rail is used for radially positioning the notch enclosing rail, the peripheral side wall of the notch enclosing rail is designed to be an axial cylinder wall, and when a pressing ring is fixed on the end face of a stator iron core, an annular launder is formed between an inner ring of the pressing ring and the peripheral side wall; when the end face of the stator core is free of a pressing ring, the peripheral baffle ring is connected with the periphery of the notch of the stator core in a sealing way, an annular flow groove which is sealed with the end face of the stator core is formed between the peripheral baffle ring and the peripheral side wall, the stator notch is just positioned in the annular flow groove, pouring sealant is guided into the annular flow groove by a guide cover plate to be solidified to form a flat pouring sealant ring, the appearance quality of the pouring sealant ring and the operability of pouring operation are improved, the thickness of the solidified pouring sealant ring can be adjusted by adjusting the axial heights of the peripheral side wall of the notch and the peripheral baffle ring, so that effective pouring can be carried out according to the pouring sealing requirement of the stator notch, and the reliability of the pouring operation is improved.
3. The external diameter of water conservancy diversion apron is less than notch and encloses shelves upper surface outward flange diameter 2~3 millimeters, and the pouring sealant is filled into annular chute through the water conservancy diversion apron in, after annular chute is filled by the pouring sealant, down the pouring sealant that flows from the water conservancy diversion apron can't reentrant annular chute in, then enclose shelves upper surface overflow from notch to notch, then indicate when the pouring sealant overflows to notch and enclose the upper surface of shelves that the pouring sealant has filled annular chute completely, can stop the pouring sealant, easily master the filling volume at the pouring sealant in-process, improves the maneuverability of pouring operation.
4. The upper surface of notch rail is from the internal diameter taper surface that reduces gradually of periphery lateral wall upper edge and upwards protruding, make the pouring sealant that flows to notch rail upper surface edge flow into the stator notch downwards at the embedment in-process, the pouring sealant can not overflow to notch rail upper surface when guaranteeing that annular chute is not fully filled, notch rail upper surface's taper angle is unequal with the taper angle of water conservancy diversion apron, have annular overflow space between notch rail and water conservancy diversion apron, make annular chute be filled up the back, the pouring sealant can overflow in the annular overflow space, can not fall into clean health in the stator inner chamber, and notch rail and water conservancy diversion apron are easily dialled after the pouring sealant solidification, do not influence the outward appearance quality of the pouring sealant circle that forms.
Drawings
Fig. 1 is a schematic structural diagram of a stator slot filling and sealing operation device matched with a stator core in an embodiment.
Fig. 2 is a schematic view of the structure of the notch enclosure.
Fig. 3 is a schematic diagram of a structure in which a notch enclosure and a peripheral enclosure are matched with a stator core.
Detailed Description
Embodiments of the present invention are described in detail below with reference to fig. 1 to 3.
The stator notch filling and sealing operation device is characterized by comprising a flow guide cover plate 2 for guiding pouring sealant to fill and cover a stator notch and a notch enclosing rail 1 for limiting and shaping the poured pouring sealant during filling and sealing operation, wherein the notch enclosing rail 1 is in a circular ring shape, is arranged on the end face of a stator core and is radially positioned and matched with the inner ring of the stator core 100, a gap between the notch enclosing rail 1 and the stator core is filled through rubber mud in a sealing manner, the flow guide cover plate 2 is in a circular ring shape and coaxially covers the notch enclosing rail 1, and the flow guide cover plate 2 is in a cone shape with gradually reduced outer diameter and protruding upwards.
As shown in the figure, the stator notch embedment operation device, notch fence 1 is used as a protective ring of an iron core centering device 100 during embedment operation, gaps between the notch fence 1 and the stator iron core 100 are filled through rubber mud in a sealing manner, glue solution flows into an inner cavity of the stator iron core during embedment is prevented, reliability and effectiveness of embedment operation are improved, a guide cover plate 2 covers the notch fence 1 and is in an upward protruding conical shape, glue solution is poured from the guide cover plate, the stator slot 101 is filled through the guide of the guide cover plate 2, an annular glue ring is formed at the position of the stator slot, and accurate and rapid guide of the glue solution during embedment operation is realized, and embedment operation efficiency is improved.
The bottom of the notch enclosure 1 is provided with positioning clamping feet 11 which are radially matched with the inner ring of the stator core, the positioning clamping feet 11 are uniformly distributed along the lower surface of the notch enclosure 1, the outer peripheral side wall 12 of the notch enclosure 1 is a cylindrical wall which is axially arranged, the outer side surface of the positioning clamping feet 11 is flush with the outer peripheral side wall 12, and rubber mud is filled between the bottom of the notch enclosure 1 and the stator core. As can be seen from fig. 1, the positioning pin 11 extends into the inner cavity of the stator core 100 and abuts against the inner wall of the lamination, and the stator pin 11 is flush with the outer peripheral side wall 12, that is, the outer peripheral side wall 12 protrudes upwards along the axial direction of the inner ring of the slot of the stator, so as to form an inner peripheral baffle of the shaping pouring sealant during pouring, and the position of the solidified outer peripheral side wall 12 of the pouring sealant is the position of the inner ring of the pouring sealant ring. After the positioning clamping pins 11 are propped against the laminated inner wall of the stator core 100, rubber cement is filled between the bottom of the notch enclosure 1 and the laminated inner wall of the stator core through the inner ring hole of the notch enclosure 1, so that glue solution cannot leak from between the peripheral side wall 12 and the stator core in the glue filling process.
The stator slot filling and sealing operation device comprises a stator core end face, a stator slot sealing device and a stator slot sealing device, wherein the stator slot sealing operation device also comprises a peripheral baffle ring 5 coaxially arranged on the periphery of a slot enclosure 1, the peripheral baffle ring 5 is arranged on the periphery of the stator core slot, the bottom of the peripheral baffle ring is in sealing connection with the stator core end face through fastening glue, an annular launder 4 is formed between the peripheral baffle ring 5 and a peripheral side wall 12, and a stator slot 101 is positioned in the annular launder 4. Because the prior art has the stator core with two structures of the pressing ring and the non-pressing ring, when the end face of the stator core is free of the pressing ring, the peripheral baffle ring 5 is arranged on the periphery of the stator notch, the peripheral baffle ring 5 is the peripheral baffle of the pouring sealant, the inner wall of the peripheral baffle ring 5 is the outer ring position of the pouring sealant after the pouring sealant is solidified, the annular launder 4 is formed between the peripheral side wall 12 and the peripheral baffle ring 5, and the stator notch 101 is arranged in the annular launder 4. When the pressing ring is fixed on the end face of the stator core, the inner wall of the pressing ring can be directly used as the outer periphery of the pouring sealant because the pressing ring is positioned on the periphery of the stator notch, the arrangement of the outer periphery baffle ring 5 is omitted, the annular launder 4 is formed between the inner wall of the pressing ring and the outer periphery side wall 12, and the stator notch 101 is positioned in the annular launder 4. During the potting operation, the pouring sealant flows into the annular launder 4 from the diversion of the diversion cover plate 2 to fill and cover the stator notch. Because the gap between the notch enclosing rail 1 and the stator core is filled through rubber cement in a sealing way, the peripheral baffle ring 5 is connected with the end face of the stator core in a sealing way through fastening glue, and the inner wall of the pressing ring is connected with the end face of the stator core in a seamless way, the two radial sides of the annular launder 4 formed under the two conditions of the pressing ring and the non-pressing ring on the end face of the stator core are sealed, and the potting effectiveness and reliability are high. It is to be noted that, as the upper side of the annular runner 4 is open as seen in fig. 1, since the potting operation is performed after the stator core is assembled with the coil, the space above the stator slot is occupied by the coil, but the coil is omitted from the drawing, the space to be filled by the potting operation is just the stator slot and the axial gap between the stator slot and the coil, and the potting operation is performed not only to fill the stator slot but also to fill the axial gap between the stator slot and the coil, i.e., to fill and cover the stator slot.
The outer diameter of the diversion cover plate 2 is smaller than the outer edge diameter of the upper surface of the notch enclosure 1 by 2-3 mm. Pouring sealant is poured into the annular flow groove 4 through the flow guide cover plate 2, when the annular flow groove 4 is filled with the pouring sealant, the pouring sealant flowing downwards from the flow guide cover plate 2 cannot enter the annular flow groove 4 again, then overflows from the outer edge of the upper surface of the notch enclosure 1 to the upper surface of the notch enclosure, when the pouring sealant overflows to the upper surface of the notch enclosure 1, the pouring sealant is described to completely fill the annular flow groove 4, the pouring sealant can be stopped, the pouring amount is easy to master in the pouring sealant process, and the operability of pouring sealant operation is improved.
The lower surface of the notch enclosure 1 is an annular plane, the upper surface is a conical surface with gradually reduced diameter from the inner edge of the upper edge of the peripheral side wall 12 and protruding upwards, the conical angle of the upper surface of the notch enclosure 1 is unequal to the conical angle of the diversion cover plate 2, and an annular overflow space 3 is formed between the notch enclosure 1 and the diversion cover plate 2. The upper surface of notch rail 1 is from the internal diameter taper surface that reduces gradually of periphery lateral wall 12 top edge and upwards protruding, make the pouring sealant that flows to notch rail 1 top surface edge flow into stator notch 101 downwards in the embedment in-process, guarantee that the pouring sealant can not overflow to notch rail 1 upper surface when annular chute 4 is not fully filled, notch rail 1 upper surface's taper angle is unequal with the taper angle of water conservancy diversion apron 2, have annular overflow space between notch rail 1 and water conservancy diversion apron 2, make annular chute 4 be filled up the back, the pouring sealant can overflow in the annular overflow space, can not fall into the clean health in the stator inner chamber, notch rail 1 and water conservancy diversion apron 2 are easily dialled after the pouring sealant solidification, do not influence the outward appearance quality of the pouring sealant circle that forms.
The inner edge of the upper surface of the notch enclosure 1 is a chamfer edge 13 parallel to the lower surface of the notch enclosure 1, so that overflow conditions of pouring sealant on the upper surface of the notch enclosure 1 can be easily observed, whether the annular launder 4 is completely filled or not can be accurately judged, and glue filling can be stopped.
The stator slot filling and sealing operation method adopts the stator slot filling and sealing operation device to perform filling and sealing operation, and comprises the following steps: firstly, radially positioning and matching a notch enclosure 1 with an inner ring of a stator core, sealing and filling gaps between the notch enclosure 1 and the stator core through rubber mud, and covering a diversion cover plate 2 on the notch enclosure 1; secondly, uniformly pouring the pouring sealant along the circumferential direction of the diversion cover plate 2 until the stator notch is filled and covered; thirdly, waiting for pouring sealant to solidify at the annular launder 4 to form a pouring sealant ring; finally, the diversion cover plate 2 and the notch enclosure 1 are sequentially pulled out, and then rubber mud on the stator core slot wedge is cleaned, so that the potting of the stator notch is realized.
According to the stator notch encapsulating operation method, the notch enclosure 1 is used as the protection ring for core centering during encapsulating operation, rubber cement is filled between the notch enclosure 1 and a 100 slot wedge of the stator core, glue solution is prevented from flowing into an inner cavity of the stator core during encapsulating operation, reliability and effectiveness of the encapsulating operation are improved, the guide cover plate 2 covers the notch enclosure 1 and is in an upward protruding conical shape, glue solution is poured from the guide cover plate, the stator notch is formed through the guide of the guide cover plate 1, and an annular rubber ring is formed at the position of the stator notch, so that accurate and rapid guide of the glue solution during encapsulating operation is realized, and encapsulating operation efficiency is improved.
Wherein, when the end face of the stator core is fixed with a pressing ring, an annular launder 4 is formed between the inner ring of the pressing ring and the outer peripheral side wall 12 after the first step; when the end face of the stator core is free of the pressing ring, the peripheral baffle ring 5 is arranged on the periphery of the notch of the stator core before the first step is carried out, and the annular launder 4 is formed between the peripheral baffle ring 5 and the peripheral side wall 12 after the first step is carried out. The stator notch 101 is just positioned in the annular launder 4, and pouring sealant is guided into the annular launder by the guide cover plate 2 to be solidified to form a flat pouring sealant ring, so that the appearance quality of the pouring sealant ring and the operability of the pouring operation are improved.
The concrete method for uniformly pouring sealant along the circumferential direction of the diversion cover plate 2 is as follows: pouring sealant slowly along the circumferential direction from a certain position of the diversion cover plate 2, guiding the pouring sealant into the annular launder 4 from the diversion cover plate 2, and stopping pouring sealant when the annular launder 4 is filled up and the pouring sealant overflows to the upper surface of the notch enclosure 1. After the annular flow groove 4 is filled with the pouring sealant, the pouring sealant flowing downwards from the diversion cover plate 2 cannot enter the annular flow groove 4 any more, then overflows from the outer edge of the upper surface of the notch enclosing rail 1 to the upper surface of the notch enclosing rail 1, and when the pouring sealant overflows to the upper surface of the notch enclosing rail 1, the pouring sealant is described to completely fill the annular flow groove, the pouring sealant can be stopped, the pouring amount can be mastered easily in the pouring sealant filling process, and the operability of pouring sealant operation is improved.
The thickness of the pouring sealant ring formed at the position of the stator notch is adjusted by adjusting the axial heights of the peripheral side wall 12 and the peripheral baffle ring 5 of the notch enclosure 1, so that effective pouring and sealing can be performed according to the pouring and sealing requirements of the stator notch, and the reliability of pouring and sealing operation is improved.
The foregoing disclosure of embodiments of the present invention has been fully described with reference to the accompanying drawings, in which it is to be understood that the embodiments described are merely some of the embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Claims (7)
1. The stator notch filling and sealing operation device is characterized by comprising a flow guide cover plate (2) for guiding pouring sealant to fill the pouring sealant and cover a stator notch and a notch enclosing rail (1) for limiting and shaping the poured pouring sealant during filling and sealing operation, wherein the notch enclosing rail (1) is in a circular ring shape, is arranged on the end face of a stator iron core and is radially matched with an inner ring of the stator iron core in a positioning way, a gap between the notch enclosing rail (1) and the stator iron core is filled in a sealing way through rubber mud, the flow guide cover plate (2) is in a circular ring shape and coaxially covers the notch enclosing rail (1), and the flow guide cover plate (2) is in a cone shape with gradually reduced outer diameter and protruding upwards;
the bottom of the notch enclosure (1) is provided with positioning clamping feet (11) which are radially matched with the inner ring of the stator core in a positioning way, the positioning clamping feet (11) are uniformly distributed along the lower surface of the notch enclosure (1), the outer peripheral side wall (12) of the notch enclosure (1) is a cylindrical wall which is axially arranged, the outer side surface of the positioning clamping feet (11) is flush with the outer peripheral side wall (12), and rubber mud is filled between the bottom of the notch enclosure (1) and the stator core;
when the end face of the stator iron core is fixed with a pressing ring, an annular launder (4) is formed between the inner ring of the pressing ring and the outer peripheral side wall (12);
the stator slot filling and sealing operation device comprises a stator core end face, a stator slot sealing device and a stator slot sealing device, wherein the stator slot sealing operation device is characterized in that the stator slot sealing device also comprises a peripheral baffle ring (5) coaxially arranged at the periphery of a slot enclosing rail (1), the peripheral baffle ring (5) is arranged at the periphery of a stator core slot, the bottom of the peripheral baffle ring is connected with the stator core end face in a sealing way through fastening glue, an annular launder (4) is formed between the peripheral baffle ring (5) and a peripheral side wall (12), and the stator slot is positioned in the annular launder (4);
the lower surface of notch enclose shelves (1) be annular plane, the upper surface is from the internal diameter taper surface that reduces gradually of periphery lateral wall (12) top edge and upwards bellied, the conical angle that notch encloses shelves (1) upper surface is unequal with the conical angle of water conservancy diversion apron (2), has annular overflow space (3) between notch enclose shelves (1) and water conservancy diversion apron (2).
2. The stator slot filling and sealing operation device according to claim 1, wherein the outer diameter of the diversion cover plate (2) is smaller than the outer edge diameter of the upper surface of the slot enclosure (1) by 2-3 mm.
3. The stator slot filling and sealing operation device according to claim 1, wherein the inner edge of the upper surface of the slot enclosure (1) is a chamfer edge (13) parallel to the lower surface of the slot enclosure (1).
4. A stator slot potting operation method, wherein the stator slot potting operation apparatus according to any one of claims 1 to 3 is used for potting operation, comprising the steps of: firstly, radially positioning and matching a notch enclosure (1) with an inner ring of a stator core, sealing and filling gaps between the notch enclosure (1) and the stator core through rubber mud, and covering a diversion cover plate (2) on the notch enclosure (1); secondly, uniformly filling pouring sealant along the circumferential direction of the diversion cover plate (2) until the stator notch is filled and covered; thirdly, waiting for pouring sealant to be solidified at the annular launder (4) to form a pouring sealant ring; finally, the diversion cover plate (2) and the notch enclosure (1) are sequentially pulled out, and then rubber mud on the stator core slot wedge is cleaned, so that the potting of the stator notch is realized.
5. The stator slot potting operation method according to claim 4, wherein when the pressing ring is fixed to the end face of the stator core, an annular launder (4) is formed between the inner ring of the pressing ring and the outer peripheral side wall (12) after the first step; when the end face of the stator core is free of the pressing ring, a peripheral baffle ring (5) is arranged on the periphery of a notch of the stator core before the first step is carried out, and an annular launder (4) is formed between the peripheral baffle ring (5) and a peripheral side wall (12) after the first step is carried out.
6. The stator slot filling and sealing operation method according to claim 5, wherein the concrete method for uniformly pouring the pouring sealant along the circumferential direction of the diversion cover plate (2) is as follows: pouring sealant slowly from a certain position of the diversion cover plate (2) along the circumferential direction at uniform speed, guiding the pouring sealant from the diversion cover plate (2) into the annular launder (4), and stopping pouring sealant when the annular launder (4) is filled and the pouring sealant overflows to the upper surface of the notch fence (1).
7. The stator slot potting operation method according to claim 5, characterized in that the thickness of the potting ring formed at the stator slot is adjusted by adjusting the axial height of the peripheral side wall (12) of the slot rail (1) and the peripheral ring (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910839504.5A CN110417214B (en) | 2019-09-06 | 2019-09-06 | Stator slot filling and sealing operation device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910839504.5A CN110417214B (en) | 2019-09-06 | 2019-09-06 | Stator slot filling and sealing operation device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110417214A CN110417214A (en) | 2019-11-05 |
| CN110417214B true CN110417214B (en) | 2024-03-22 |
Family
ID=68370471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910839504.5A Active CN110417214B (en) | 2019-09-06 | 2019-09-06 | Stator slot filling and sealing operation device and method |
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| DE102020114309A1 (en) * | 2020-05-28 | 2021-12-02 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Electrical machine and method for manufacturing an electrical machine |
| CN113037035B (en) * | 2021-04-30 | 2022-02-18 | 江苏中关赛恩汽车电机研究院有限公司 | A frock for new energy automobile motor rotor encapsulating |
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