CN119051303B - A motor with a hybrid excitation salient pole rotor structure and its production process - Google Patents
A motor with a hybrid excitation salient pole rotor structure and its production process Download PDFInfo
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- CN119051303B CN119051303B CN202411554058.0A CN202411554058A CN119051303B CN 119051303 B CN119051303 B CN 119051303B CN 202411554058 A CN202411554058 A CN 202411554058A CN 119051303 B CN119051303 B CN 119051303B
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- 230000005284 excitation Effects 0.000 title claims abstract description 58
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 238000013016 damping Methods 0.000 claims abstract description 94
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 68
- 229910052802 copper Inorganic materials 0.000 claims abstract description 68
- 239000010949 copper Substances 0.000 claims abstract description 68
- 238000004804 winding Methods 0.000 claims abstract description 66
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 66
- 238000010008 shearing Methods 0.000 claims description 41
- 238000003466 welding Methods 0.000 claims description 33
- 229910052742 iron Inorganic materials 0.000 claims description 27
- 238000004080 punching Methods 0.000 claims description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 238000012545 processing Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 8
- 239000003973 paint Substances 0.000 claims description 6
- 238000010030 laminating Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 8
- 230000010355 oscillation Effects 0.000 abstract description 2
- 230000001360 synchronised effect Effects 0.000 description 10
- 230000000087 stabilizing effect Effects 0.000 description 6
- 238000003825 pressing Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000009740 moulding (composite fabrication) Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- PMVSDNDAUGGCCE-TYYBGVCCSA-L Ferrous fumarate Chemical compound [Fe+2].[O-]C(=O)\C=C\C([O-])=O PMVSDNDAUGGCCE-TYYBGVCCSA-L 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
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- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
- H02K15/03—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/08—Forming windings by laying conductors into or around core parts
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/10—Applying solid insulation to windings, stators or rotors, e.g. applying insulating tapes
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
- H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
- H02K3/345—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation between conductor and core, e.g. slot insulation
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/52—Fastening salient pole windings or connections thereto
- H02K3/521—Fastening salient pole windings or connections thereto applicable to stators only
- H02K3/522—Fastening salient pole windings or connections thereto applicable to stators only for generally annular cores with salient poles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/52—Fastening salient pole windings or connections thereto
- H02K3/527—Fastening salient pole windings or connections thereto applicable to rotors only
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention relates to the technical field of motors for new energy vehicles, in particular to a motor with a mixed excitation salient pole rotor structure and a production process thereof, wherein the motor comprises a stator and a rotor, the stator comprises a stator core and a flat wire winding, and the flat wire winding is wound on the stator core; the rotor is arranged in the stator, the rotor comprises a rotor core, an electric excitation winding and damping copper bars, the rotor core is arranged in an inner hole of the stator core, rotor magnetic poles are arranged on the rotor core, the electric excitation winding is wound on the rotor magnetic poles, damping holes are formed in the rotor magnetic poles, and the damping copper bars are arranged in the damping holes. The flat wire winding can provide a magnetic field more flexibly at a low speed, the electric excitation winding can further reduce excitation more accurately at a high speed, more energy consumption is optimized, the comprehensive endurance rate is improved, the damping copper bar can meet the electric load during impact, system oscillation is reduced, and system stability is improved.
Description
Technical Field
The invention relates to the technical field of motors for new energy vehicles, in particular to a motor with a hybrid excitation salient pole rotor structure and a production process thereof.
Background
Compared with a permanent magnet motor, the electric excitation motor can obtain better starting torque by increasing excitation at low speed, and can adjust the extra loss of smaller weak magnetic current of excitation at high speed, so that the highest efficiency and the high-efficiency area are smaller than those of the permanent magnet motor, but the comprehensive energy consumption of the electric excitation motor under the WLTC working condition is equal to that of the permanent magnet motor. Meanwhile, as the rotor is an excitation winding, rare earth materials are not needed, and the motor has certain advantages in terms of motor cost and environmental protection.
At present, the electric excitation synchronous motor is used less in the domestic new energy automobile industry, and the permanent magnet synchronous motor is used more, but the electric excitation synchronous motor and the permanent magnet synchronous motor have advantages under different speeds. And at low speed, the permanent magnet synchronous motor has high efficiency and large high-efficiency area occupation ratio, and at high speed, the electric excitation synchronous motor has lower energy consumption. With the increasing requirements of new energy industries on energy consumption and efficiency, in recent years, a hybrid excitation synchronous motor with an electric excitation winding and a permanent magnet combined is favored by a plurality of foreign enterprises.
However, how to combine the permanent magnet synchronous motor and the electro-excitation synchronous motor to overcome the disadvantages of low and high speed of the two motors respectively becomes a problem to be solved.
Disclosure of Invention
The invention aims to solve the technical problems that: in order to solve the technical problems in the prior art, the invention provides the motor with the mixed excitation salient pole rotor structure and the production process thereof, and the rotor of the mixed excitation synchronous motor is provided with the electric excitation winding and the permanent magnet, so that the excitation loss can be reduced at low speed, the excitation current can be reduced even not needed at high speed, the comprehensive efficiency is further improved, and the comprehensive endurance is improved.
The motor with the mixed excitation salient pole rotor structure comprises a stator, wherein the stator comprises a stator core and flat wire windings, the flat wire windings are wound on the stator core, an inner hole is formed in the stator core, the rotor is arranged in the stator, the rotor comprises a rotor core, an electric excitation winding and damping copper bars, the rotor core is arranged in the inner hole of the stator core, rotor magnetic poles are arranged on the rotor core, a plurality of rotor magnetic poles are arranged along the circumferential direction of the rotor, the electric excitation winding is wound on the rotor magnetic poles, damping holes are formed in the rotor magnetic poles, and the damping copper bars are positioned in the damping holes.
According to the motor with the hybrid excitation salient pole rotor structure, the flat wire winding can provide a magnetic field more flexibly at a low speed, the electric excitation winding can further reduce excitation more accurately at a high speed, more energy consumption is optimized, comprehensive endurance is improved, the damping copper bar can meet the electric load during impact, system vibration is reduced, and system stability is improved.
Further, the rotor core is further provided with iron end rings at two ends along the axial direction of the rotor core, and the iron end rings are connected with two ends of the damping copper bars.
Through above-mentioned technical scheme, be convenient for realize the connection of damping copper bar through two iron end rings, be convenient for realize the short circuit simultaneously.
Further, a pole shoe is arranged on the rotor magnetic pole, and magnetic steel is arranged in the pole shoe.
Further, two pole shoes are arranged on each rotor magnetic pole, and the two pole shoes are arranged in a relatively inclined mode, so that the two pole shoes are in a V shape, and the two magnetic steels on the same rotor magnetic pole are opposite poles.
According to the technical scheme, the V-shaped magnetic steel and the salient pole rotor are matched, the rotor structure is more stable, the motor can have higher rotating speed and power density by utilizing the characteristic that the inductance of the crossed axes and the straight axes of the two magnetic steels are inconsistent due to the inclined arrangement of the two magnetic steels, and excellent energy consumption and NVH performance are obtained through the parameterized multi-objective optimization of the shape, the included angle and the damping strip of the magnetic steel, so that the noise and vibration of the motor are reduced.
Further, the rotor magnetic pole is provided with a lightening hole, and the lightening hole is positioned between the pole shoe and the damping hole.
Further, grooves are formed between adjacent rotor magnetic poles, the electric excitation winding is located in the grooves, and insulating paper is arranged at the contact part of the electric excitation winding and the rotor punching iron core.
Further, the flat wire winding adopts distributed short-distance flat wire winding, be equipped with the iron core tooth along self axial on stator core's the inner wall, the iron core tooth has a plurality ofly along stator core's circumference array, adjacent form the tooth's socket between the iron core tooth, distributed short-distance flat wire winding is located the tooth's socket, and winds on the iron core tooth.
Further, the both ends of stator core are equipped with the clamp plate that ends respectively, the clamp plate that ends butt with stator core.
The production process is based on the motor with the mixed excitation salient pole rotor structure, and comprises the following steps of:
The stator processing step comprises the steps of obtaining a stator punching sheet through stamping forming, laminating and welding the stator punching sheet to form a stator core, inserting insulating paper into the stator core, and then mounting a flat wire winding on the insulating paper;
The rotor processing step comprises the steps of obtaining a rotor punching sheet through stamping forming, laminating and welding the rotor punching sheet to form a rotor core, winding a flat wire winding on a rotor magnetic pole on the rotor core, and installing a damping copper bar in a damping hole of the rotor core;
And the assembling step is to install the rotor core in the stator core.
Further, in the stator processing step, when the flat wire winding is installed on the stator core, the flat wire winding is inserted into the stator core and is pressed, the twisting and flaring are carried out after the pressing is finished, the laser welding is carried out on the joint of the flat wire winding, the coating and the insulating paint dripping are carried out after the welding is finished, and the winding insulation detection is carried out after the insulating paint is solidified.
The invention has the advantages that,
1. The flat wire winding can provide a magnetic field more flexibly at a low speed, the electric excitation winding can further reduce excitation more accurately at a high speed, more energy consumption is optimized, the comprehensive endurance rate is improved, the damping copper bar can meet the electric load during impact, system oscillation is reduced, and system stability is improved;
2. the motor has higher rotating speed and power density due to the fact that the two magnetic steels are obliquely arranged and the characteristics of inconsistent inductance of the alternating-direct axes are utilized, and excellent energy consumption and NVH performance are obtained through parameterized multi-objective optimization of the magnetic steel shape, the included angle and the damping strip, so that noise and vibration of the motor are reduced.
Drawings
The invention will be further described with reference to the drawings and examples.
Fig. 1 is a schematic diagram of an explosive structure of an electric machine with a hybrid excitation salient pole rotor structure embodying the present invention.
Fig. 2 is a schematic top view of an overall motor with a hybrid excitation salient pole rotor structure embodying the present invention.
Fig. 3 is a schematic view of a stator core embodying the present invention.
Fig. 4 is a schematic view of a rotor core embodying the present invention.
Fig. 5 is a schematic diagram of an iron end ring embodying the present invention.
Fig. 6 is a schematic view of an assembly device embodying the damping copper bar of the present invention.
Fig. 7 is a schematic diagram of a clamping tool embodied in the present invention.
Fig. 8 is a schematic view of a shear assembly embodying the present invention.
Fig. 9 is a schematic view of a mounting assembly embodying the present invention.
Fig. 10 is a schematic cross-sectional view of a locking lever and ball embodying the present invention.
1, A stator core; 11, an inner hole; 12, a flat wire winding; 13, a stop sheet, 14, a tooth slot, 15, a core tooth, 2, a rotor core, 21, an electric excitation winding, 22, a damping copper bar, 23, a rotor magnetic pole, 231, a damping hole, 232, a pole shoe, 233, a lightening hole, 24, an iron end ring, 241, a welding groove, 25, a groove, 26, magnetic steel, 3, a frame, 31, a rotary table, 32, a clamping tool, 321, a first cylinder, 322, a moving plate, 323, a clamping cylinder, 3231, a clamping hole, 324, a guide rod, 3241, a sliding block, 3242, a limiting step, 3243, a clamping hole, 325, a second cylinder, 326, a top plate, 327, a mandril, 328, a clamping rod, 3281, a ball, 329, a second driving motor, 3291, a second gear, 3292, a third gear, 33, a shearing station, 34, an assembling station, 35, a welding station, 4, a shearing assembly, 41, a shearing frame, 42, a fixed cylinder, 421, a stabilizing cylinder, a guide hole, 43, a cylinder, a 431, a positioning hole, 441, a shearing blade, 44, a shearing assembly, 44, a second gear, 442, a hydraulic cylinder, a fixed cylinder, 52, a clamping assembly, a spring assembly, a 55, a compression assembly, a spring assembly, a 55.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the invention and therefore show only the structures which are relevant to the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more. In the description of the present invention, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The invention discloses a motor with a mixed excitation salient pole rotor structure and a production process thereof.
Referring to fig. 1 to 5, a motor having a hybrid excitation salient pole rotor structure includes a stator and a rotor provided in the stator, the stator includes a stator core 1 and a flat wire winding 12, the flat wire winding 12 is wound on the stator core 1, and the stator core 1 has an inner hole 11. The rotor comprises a rotor core 2, an electric excitation winding 21 and damping copper bars 22, wherein the rotor core 2 is arranged in an inner hole 11 of the stator core 1, a plurality of rotor magnetic poles 23 are arranged on the rotor core 2, the electric excitation winding 21 is wound on the rotor magnetic poles 23 along the circumferential direction of the rotor, damping holes 231 are formed in the rotor magnetic poles 23, and the damping copper bars 22 are positioned in the damping holes 231. The rotor core 2 adopts a salient pole rotor.
Specifically, the two ends of the rotor core 2 along the axial direction of the rotor core are further provided with iron end rings 24, the iron end rings 24 are connected with the two ends of the damping copper bars 22, each iron end ring 24 is provided with a welding groove 241, the welding grooves 241 are semi-cylindrical and are used for providing the damping copper bars 22, and the two sides of the welding grooves 241 along the circumferential direction of the rotor core are used for welding with the damping copper bars 22. In this embodiment, the number of the rotor magnetic poles 23 is 6, and the number of the damping copper bars 22 is 42, that is, 7 damping copper bars 22 are arranged on each rotor magnetic pole 23. The damping copper bars 22 are cylindrical, the diameter is 9mm, the aperture of the damping holes is 9.5mm, the number of the damping holes 231 on each rotor magnetic pole 23 is 7, the slot pitch angle of the adjacent damping holes 231 is 6 degrees, and the slot pitch angle is the included angle between the damping holes 231 and the connecting line of the adjacent damping holes 231 and the circle center of the rotor iron core 2.
Weight-reducing holes 233 are further formed in each of the rotor poles 23 and the iron end rings 24, the weight-reducing holes 233 are located between the pole shoes 232 and the damping holes 231, and the diameter of the weight-reducing holes 233 can be 21mm.
Two pole shoes 232 are arranged on each rotor magnetic pole 23, one magnetic steel 26 is inserted into each pole shoe 232, and the two pole shoes 232 are arranged in a relatively inclined mode, so that the two pole shoes 232 are in a V shape, the included angle is 93 degrees, and the two magnetic steels 26 on the same rotor magnetic pole 23 are opposite poles.
Grooves 25 are formed between adjacent rotor magnetic poles 23, the electric excitation winding 21 is positioned in the grooves 25, and insulating paper is arranged at the contact part of the electric excitation winding 21 and the rotor punching iron core.
In this embodiment, the flat wire winding 12 may be a seventy-two slot six-pole distributed short-distance flat wire winding, the span of which is 10, the inner wall of the stator core 1 is provided with a plurality of core teeth 15 along the axial direction thereof, the core teeth 15 are arrayed along the circumferential direction of the stator core 1, tooth slots 14 are formed between adjacent core teeth 15, and the distributed short-distance flat wire winding 12 is located in the tooth slots 14 and is wound on the core teeth 15. Insulating paper is provided on the side walls of the core teeth 15 to separate the distributed short-distance flat wire windings from the stator core 1. The two ends of the stator core 1 are respectively provided with a pressing plate, and the pressing plates are used for pressing the stator core 1 and can separate the end part of the stator core 1 from the distributed short-distance flat wire winding.
The production process is based on the motor with the mixed excitation salient pole rotor structure, and comprises the following steps of:
The stator processing step comprises the steps of obtaining a stator punching sheet through stamping forming, laminating and welding the stator punching sheet to form a stator core 1, then compacting the stator core 1 through two compression plates, and then installing a flat wire winding 12 on the stator core 1. In the stator processing step, when the flat wire winding 12 is installed on the stator core 1, firstly, the formed insulating paper is inserted into the tooth grooves 14 and is attached to the side wall of the iron core tooth 15, then the flat wire winding 12 is inserted into the tooth grooves 14 and is pressed, after the pressing is finished, the flat wire winding 12 is twisted and flared, welding is carried out on welding spots of the flat wire winding 12, then, the insulating paint is coated and dripped, and winding insulation detection is carried out after the insulating paint is solidified.
And the rotor processing step is to obtain a rotor punching sheet through stamping forming, and to laminate and weld the rotor punching sheet to form the rotor core 2. After the magnetic steel 26 is inserted into the rotor core 2, the rotor core 2 is compressed by adopting two iron end rings 24, then the damping copper bars 22 are inserted, and the damping copper bars 22 and the iron end rings 24 are subjected to automatic laser welding. When the damping copper bar 22 is inserted and the damping copper bar 22 is welded, the damping copper bar 22 assembly device is adopted. Then, insulating paper is attached to the portion of the rotor core 2 which needs to be in contact with the electrically excited winding 21, i.e., the side wall of the rotor stimulus, and then the flat wire winding 12 is wound on the insulating paper of the rotor pole 23.
The assembling step is to install the rotor core 2 in the stator core 1.
Referring to fig. 6 to 10, the assembly device for the damping copper bar 22 comprises a rotary assembly, a shearing assembly 4, an assembly 5 and a welding assembly 6, wherein the rotary assembly comprises a frame 3, a first driving motor and a rotary table 31, the first driving motor is fixedly installed on the frame 3, and an output end of the first driving motor is arranged in the vertical direction and is fixedly connected with the rotary table 31 so as to drive the rotary table 31 to rotate. The rotary table 31 is provided with a clamping tool 32 for clamping a workpiece, and the frame 3 is provided with a shearing station 33, an assembling station 34 and a welding station 35 along the circumferential direction of the frame, which are respectively used for corresponding the shearing assembly 4, the assembling assembly 5 and the welding assembly 6.
In operation, the shearing assembly 4 is used for cutting the damping copper bars 22 into the required lengths, the clamping fixture 32 is used for clamping the damping copper bars 22 cut into the required lengths on the shearing station 33, the damping copper bars 22 are rotated to the assembling station 34 through the rotary table 31 and then are matched with the assembling assembly 5, the two iron end rings 24 and one rotor core 2 are assembled with the damping copper bars 22, the rotary table 31 transfers the clamping fixture 32 to the welding station 35, and the damping copper bars 22 are welded with the iron end rings 24 through the welding assembly 6.
Specifically, the shearing assembly 4 includes a shearing frame 41, a fixing cylinder 42 and a rotary cylinder 43, the shearing frame 41 is fixedly connected to the frame 3, the fixing cylinder 42 is fixedly connected to the shearing frame 41, the rotary cylinder 43 is rotatably connected to the shearing frame 41, and the fixing cylinder 42 is disposed at one end of the rotary cylinder 43 away from the rotary table 31. The fixed cylinder 42 is provided with transmission holes along the axial direction of the fixed cylinder, the rotary cylinder 43 is provided with positioning holes 431 along the axial direction of the fixed cylinder, and the number, the distribution position, the shape and the size of the transmission holes and the positioning holes 431 are the same as those of the damping holes 231 on the rotor core 2. The damping copper bar 22 is transferred to the transmission hole from the previous process and passes through the transmission hole and the positioning hole 431, i.e., a part of the damping copper bar 22 is exposed outside the rotary drum 43. A shearing blade 432 is fixedly connected to one end of the rotary cylinder 43 facing the fixed cylinder 42, and the shearing blade 432 is provided to be bonded to the end face of the fixed cylinder 42 facing the rotary cylinder 43. The shearing blades 432 are arrayed circumferentially of the rotary cylinder 43 in the same number as the rotor poles 23, so that each shearing blade 432 can cut 7 damping copper bars 22 on one rotor pole 23. The shearing blades 432 are disposed obliquely to the radial direction of the rotary drum 43 so as to increase the shearing force. The frame 3 is fixedly connected with a hydraulic cylinder 44, a piston rod of the hydraulic cylinder 44 is arranged in the vertical direction and is fixedly connected with a rack 442, the side wall of the rotary cylinder 43 is coaxially and fixedly connected with a first gear 441, and the first gear 441 is meshed with the rack 442.
When shearing, after the feeding of the damping copper bar 22 is completed through the previous process, the hydraulic cylinder 44 drives the rack 442 to move, the rack 442 drives the first gear 441 and the rotary drum 43 to rotate, and the rotary drum 43 drives the shearing blade 432 to rotate, so that the damping copper bar 22 is cut into the required length. The length of each feed of the damping bar 22 is the length of the damping bar 22 that needs to be cut.
It should be noted that, the side wall of the fixed cylinder 42 facing the rotary cylinder 43 is fixedly connected with a stabilizing cylinder 421, and a stabilizing hole for inserting the stabilizing cylinder 421 is formed in the rotary cylinder 43 to promote the stability of the rotation of the rotary cylinder 43.
The clamping fixture 32 comprises a first air cylinder 321, a movable plate 322 and a clamping cylinder 323, wherein the first air cylinder 321 is fixedly connected to the rotary table 31, a piston rod of the first air cylinder 321 is arranged along the radial direction of the rotary table 31 and is fixedly connected with the movable plate 322, and the clamping cylinder 323 is rotatably connected to the movable plate 322. The clamping cylinder 323 is provided with clamping holes 3231 along the axial direction of the clamping cylinder 323, the number, the distribution position and the shape of the clamping holes 3231 are the same as those of the damping holes 231 on the rotor core 2, so that the damping copper bars 22 can be inserted, the size of the clamping holes 3231 is slightly smaller than that of the damping copper bars 22, so that transition fit or interference fit is formed between the damping copper bars 22 and the clamping holes 3231, a certain friction force is formed between the damping copper bars 22 and the clamping holes 3231, and the friction force is larger than that between the damping copper bars 22 and the positioning holes 431.
When the clamping tool 32 rotates to the shearing station 33, the piston rod of the first cylinder 321 pushes the movable frame to move, the clamping cylinder 323 is driven to move towards the rotary cylinder 43, so that part of the damping copper bar 22 exposed out of the rotary cylinder 43 is inserted into the clamping hole 3231, and then the piston rod of the first cylinder 321 is reset, so that the damping copper bar 22 is separated from the rotary cylinder 43. The end face of the holding cylinder 323 is fixedly connected with a guide rod 324, the end face of the stabilizing cylinder 421 is provided with a guide hole 4211 for the guide rod 324 to insert, so that when the holding cylinder 323 moves towards the rotary cylinder 43, the guide rod 324 interferes with the stabilizing cylinder 421, and meanwhile, the guide rod 324 is matched with the guide hole 4211, so that the moving stability of the holding cylinder 323 can be improved. The length of the guide rod 324 is longer than the length of the damping copper bar 22 exposed out of the rotary drum 43, that is, after the guide rod 324 is inserted into the guide hole 4211, the damping copper bar 22 is inserted into the clamping hole 3231, so that the damping copper bar 22 can be aligned with the clamping hole 3231 conveniently.
The assembly component 5 comprises an assembly frame 51, a third air cylinder 52 and a fixed plate 53, wherein the assembly frame 51 is fixedly connected to the frame 3, the third air cylinder 52 is fixedly connected to the assembly frame 51, a piston rod of the third air cylinder 52 is fixedly connected with the fixed plate 53, a movable rod 54 is fixedly connected to the fixed plate 53, one end, far away from the fixed plate 53, of the movable rod 54 is slidably connected with the assembly plate 55, the assembly rod 551 is fixedly connected to the assembly, and the assembly rod 551 is provided with at least two assembly rods for being inserted into the lightening holes 233 so as to limit the two iron end rings 24 and one rotor core 2. The movable rod 54 is provided with a compression spring 56, one end of the compression spring 56 is abutted against the fixed plate 53, and the other end is abutted against the assembly plate 55. An anti-falling structure is provided between the moving rod 54 and the fitting plate 55 to prevent the moving rod 54 from being completely separated from the fixed plate 53.
The clamping fixture 32 further comprises a second air cylinder 325, a top plate 326 and an ejector rod 327, wherein the second air cylinder 325 is fixedly connected to the movable plate 322, a piston rod of the second air cylinder 325 is fixedly connected with the top plate 326, the ejector rod 327 is fixedly connected with the top plate 326, and the number and the positions of the ejector rods 327 are the same as those of the clamping holes 3231, so that the damping copper bars 22 in the clamping holes 3231 are ejected. The top plate 326 is fixedly connected with a clamping rod 328, a clamping hole 3243 for the clamping rod 328 to be inserted is formed in the guide rod 324, a sliding groove is formed in the side wall of the clamping hole 3243 along the radial direction of the guide rod, sliding blocks 3241 are connected in the sliding groove in a sliding manner, two groups of sliding blocks 3241 are arranged along the axial direction of the guide rod 324, two groups of sliding blocks 3241 are arranged along the circumferential direction of the clamping hole 3243, and each sliding block 3241 can be simultaneously contacted with the inner wall of one iron end ring 24 and the rotor core 2 so as to lock the iron end ring 24 and the rotor core 2. The side wall of the clamping rod 328 is fixedly connected with a ball 3281, and the ball 3281 is provided with two groups which respectively correspond to the two groups of sliding blocks 3241. When the piston rod of the second cylinder 325 is extended, the ball 3281 moves to abut against the slider 3241, and the slider 3241 is pushed to move in a direction away from the axis of the clamping hole 3243, so that the ball can be brought into contact with the iron end ring 24 and the inner wall of the rotor core 2. One end of the clamping cylinder 323 far away from the first air cylinder 321 is fixedly connected with a limiting step 3242, the diameter of the limiting step 3242 is smaller than the minimum distance between the axis of the clamping cylinder 323 and the clamping hole 3231, and the limiting step 3242 is used for being abutted with the end attaching ring. The clamping lever 328 is cylindrical so that the guide lever 324 can rotate relative to the clamping lever 328 and the ball 3281 when the clamping cylinder 323 rotates.
The welding assembly 6 may employ a five-axis welding robot to effect automatic welding of the iron end ring 24 and the damping copper bar 22. The clamping tool 32 further comprises a second driving motor 329, a second gear 3291 and a third gear 3292, the second driving motor 329 is fixedly connected to the movable plate 322, the output end of the second driving motor 329 is fixedly connected with the second gear 3291 coaxially, the third gear 3292 is fixedly connected with the clamping cylinder 323 coaxially, and the second gear 3291 is meshed with the third gear 3292.
When the damping copper bar 22 is fed in the previous working procedure, the hydraulic cylinder 44 drives the rack 442 to move, the rack 442 drives the first gear 441 and the rotary drum 43 to rotate, and the rotary drum 43 drives the shearing blade 432 to rotate, so that the damping copper bar 22 is cut into the required length.
Subsequently, the clamping tool 32 is rotated to the shearing station 33, the piston rod of the first cylinder 321 pushes the moving frame to move, the clamping cylinder 323 is driven to move towards the rotary cylinder 43, so that a part of the damping copper bar 22 exposed out of the rotary cylinder 43 is inserted into the clamping hole 3231, and then the piston rod of the first cylinder 321 is reset, so that the damping copper bar 22 is separated from the rotary cylinder 43.
Then, the clamping fixture 32 is turned to the assembly station 34, the piston rod of the third cylinder 52 pushes the fixing plate 53 to move, and the two iron end rings 24 and one rotor core 2 move toward the clamping cylinder 323, so that the damping copper bars 22 exposed out of the clamping cylinder 323 are inserted into the rotor core 2 and the iron end rings 24, and meanwhile, the guide rods 324 are also inserted into the rotor core 2 and the iron end rings 24 until one of the iron end rings 24 abuts against the limiting step 3242. At this time, the piston rod of the second cylinder 325 stretches out to drive the top plate 326 and the top rod 327 to move, the top rod 327 is inserted into the clamping hole 3231, the damping copper bars 22 are ejected out from the clamping hole 3231, two ends of the damping copper bars 22 are respectively located in the two iron end rings 24, at this time, the top plate 326 is abutted against the clamping cylinder 323, the round balls 3281 are also contacted with the sliding blocks 3241, so that each sliding block 3241 is simultaneously contacted with the iron end rings 24 and the inner wall of the rotor core 2, and the iron end rings 24 and the rotor core 2 are locked. The piston rod of the cylinder of the third cylinder 52 is then reset to separate the fitting rod 551 from the lightening hole 233.
Finally, the clamping fixture 32 is rotated to a welding station 35 and the five-axis welding robot welds the iron end ring 24 and the damping copper bar 22. During welding, the second driving motor 329 drives the second gear 3291 to rotate, the second gear 3291 drives the third gear 3292 to rotate, and then drives the clamping cylinder 323 to rotate, so that the five-axis welding robot can weld different damping copper bars 22 conveniently.
With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.
Claims (10)
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| CN202411554058.0A CN119051303B (en) | 2024-11-04 | 2024-11-04 | A motor with a hybrid excitation salient pole rotor structure and its production process |
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| CN202411554058.0A CN119051303B (en) | 2024-11-04 | 2024-11-04 | A motor with a hybrid excitation salient pole rotor structure and its production process |
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| CN103683699A (en) * | 2013-12-05 | 2014-03-26 | 张学义 | Method for producing salient pole rotor generator |
| CN115800580A (en) * | 2022-12-08 | 2023-03-14 | 南京航空航天大学 | A Main Motor Rotor of Brushless Synchronous Motor with Built-in Distributed Magnetic Barrier |
| CN219678214U (en) * | 2023-05-30 | 2023-09-12 | 江苏金强钢轮有限公司 | Low torque fluctuation tooth winding type motor core structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN212353597U (en) * | 2020-05-06 | 2021-01-15 | 坤泰车辆系统（常州）有限公司 | Three-planet-row hybrid power automobile transmission system |
| CN212551978U (en) * | 2020-06-29 | 2021-02-19 | 深圳市中建金属制品有限公司 | Portable copper bar shearing equipment |
| US12160139B2 (en) * | 2022-06-09 | 2024-12-03 | Regal Beloit Australia Pty Ltd | Variable torque constant electric machines having a radial spoked rotor with axial flux magnet plates and methods thereof |
| CN116422965B (en) * | 2023-06-15 | 2023-09-29 | 沧州天马机械股份有限公司 | Automatic steel pipe cutting equipment |
| CN221289708U (en) * | 2023-11-01 | 2024-07-09 | 安徽信立机械设备有限公司 | Adjustable magnetic stripe shearing machine |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683699A (en) * | 2013-12-05 | 2014-03-26 | 张学义 | Method for producing salient pole rotor generator |
| CN115800580A (en) * | 2022-12-08 | 2023-03-14 | 南京航空航天大学 | A Main Motor Rotor of Brushless Synchronous Motor with Built-in Distributed Magnetic Barrier |
| CN219678214U (en) * | 2023-05-30 | 2023-09-12 | 江苏金强钢轮有限公司 | Low torque fluctuation tooth winding type motor core structure |
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