A three-phase asynchronous motor permanent magnet rotor and rotor assembly system

Abstract

The present invention discloses a three-phase asynchronous motor permanent magnet rotor, which includes a rotating shaft, a sleeve and an iron core. The sleeve and the iron core are installed on the rotating shaft, and the iron core includes a plurality of iron core sheets, and the sleeve is used to limit the axial movement of the plurality of iron core sheets along the rotating shaft. The iron core sheet is composed of the same number of iron core blocks and permanent magnets, and the iron core blocks include a main iron core and a secondary iron core, the main iron core has a concave opening groove, and the secondary iron core is located in the concave opening groove, and the top of the concave opening groove and the bottom of the secondary iron core are both provided with protrusions, and the top of the concave opening groove and the bottom of the secondary iron core constitute a first magnetic isolation groove, and the secondary iron core is provided with a second magnetic isolation groove, and the first magnetic isolation groove and the second magnetic isolation groove are both located on both sides of the permanent magnet, which reduces the magnetic leakage coefficient of the permanent magnet and improves the mechanical strength of the iron core sheet. The present invention also discloses an assembly system for a three-phase asynchronous motor permanent magnet rotor, which is used for large-scale production of the three-phase asynchronous motor permanent magnet rotor.

Description

Technical Field

[0001] The invention relates to a three-phase asynchronous motor permanent magnet rotor technology, and in particular to a three-phase asynchronous motor permanent magnet rotor and a rotor assembly system. Background Art

[0002] The permanent magnet of the three-phase asynchronous motor is located inside the rotor, and the rotor magnetic circuit is asymmetric, which generates a magnetic resistance torque to drive the rotor to rotate. The permanent magnet rotor of the three-phase asynchronous motor has a large magnetic leakage coefficient, and magnetic isolation measures need to be adopted. Common magnetic isolation measures are: setting magnetic isolation grooves on the iron core and setting magnetic barriers around the permanent magnets. Setting magnetic isolation grooves on the iron core is used to reduce the magnetic leakage coefficient of the permanent magnet. Since the magnetic isolation grooves are set on the iron core, a part of the iron core is thinner and has lower mechanical strength. Setting magnetic barriers on the iron core is generally used in occasions where the speed is handed over. Therefore, the permanent magnet rotor structure of the three-phase asynchronous motor needs to be improved. Summary of the invention

[0003] In order to solve the defects of the above-mentioned prior art, the present invention proposes a three-phase asynchronous motor permanent magnet rotor, by dividing the iron core into a main iron core and an auxiliary iron core, forming a magnetic isolation groove between the main iron core and the auxiliary iron core, reducing the magnetic leakage coefficient of the permanent magnet while improving the mechanical strength of the iron core. The present invention also discloses an assembly system for the three-phase asynchronous motor permanent magnet rotor, which is used for the large-scale production of the three-phase asynchronous motor permanent magnet rotor.

[0004] The technical solution of the present invention is achieved in this way:

[0005] A three-phase asynchronous motor permanent magnet rotor comprises a rotating shaft, a sleeve and an iron core, wherein the sleeve and the iron core are mounted on the rotating shaft, the iron core comprises a plurality of iron core sheets, and the sleeve is used to limit the axial movement of the plurality of iron core sheets along the rotating shaft, wherein:

[0006] The iron core sheet is composed of the same number of iron core blocks and permanent magnets. The iron core blocks include a main iron core and a secondary iron core. The main iron core has a concave opening slot. The secondary iron core is located in the concave opening slot. The top of the concave opening slot and the bottom of the secondary iron core are both provided with protrusions. The top of the concave opening slot and the bottom of the secondary iron core form a first magnetic isolation slot. The secondary iron core is provided with a second magnetic isolation slot. The first magnetic isolation slot and the second magnetic isolation slot are both located on both sides of the permanent magnet.

[0007] The main iron core and the auxiliary iron core are both slidably connected to the permanent magnet. A slot wedge is provided at one end of the permanent magnet, and the slot wedge is used to limit the main iron core and the auxiliary iron core from sliding along the permanent magnet.

[0008] An assembly system for a three-phase asynchronous motor permanent magnet rotor, used for assembling a three-phase asynchronous motor permanent magnet rotor, characterized in that the assembly system comprises:

[0009] A containing assembly, the containing assembly comprising a support, a mounting plate and a containing frame, the containing frame being used to transport the iron core to move in one direction;

[0010] A conveying assembly, the conveying assembly includes a first mounting frame and a wedge-shaped frame, one end of the wedge-shaped frame is provided with a guide structure, one side of the guide structure is provided with a pushing structure, one side of the first mounting frame is also provided with a conveying structure, and the conveying structure is used to push the iron core to the bottom of the rotating shaft transfer assembly;

[0011] A rotating shaft assembly component, the rotating shaft assembly component comprising a clamping structure for clamping the rotating shaft and a fixing structure, the fixing structure being used to assemble the rotating shaft with the iron core;

[0012] An iron core adjustment component, the iron core adjustment component includes a second mounting frame, a first control cylinder, a control motor and a first positioning cone, the first control cylinder drives the first positioning cone to slide up and down, and the control motor can drive the first positioning cone to rotate circumferentially, a clamping structure is also provided at the bottom of the second mounting frame, the clamping structure includes a bearing seat, opposite cylinders are respectively provided at both ends of the bearing seat, the output shafts of the opposite cylinders are connected to a moving part, an arc-shaped clamping plate is installed above the moving part, an upper end head is provided above the arc-shaped clamping plate, a plurality of clamping rods are slidably connected to the inner cavity of the upper end head, and the clamping rods are slidably connected to the inner cavity of the upper end head through a reset spring.

[0013] In the assembly system of the present invention, a first control cylinder is arranged on the second mounting frame, the output shaft of the first control cylinder is a hollow structure, a sliding shaft is installed inside the output shaft, one end of the sliding shaft is fixedly connected to the first positioning cone, the sliding shaft and the first positioning cone move together with the output shaft of the first control cylinder, a control motor is also installed on one side of the first control cylinder, the output shaft of the control motor is connected to the sliding shaft via a transmission member, a spline sleeve is built in the sliding shaft, the spline sleeve enables the first control cylinder to drive the first positioning cone to slide up and down, and the control motor can drive the first positioning cone to rotate circumferentially.

[0014] In the assembly system of the present invention, the guide structure is composed of two side pieces, a main side piece and an arc side piece. The bottoms of the main side piece and the arc side piece constitute the shaft outlet. After the shaft enters the guide structure, it is guided by the arc side piece and finally slides out of the shaft outlet.

[0015] The pushing structure includes a pushing cylinder, the output shaft of the pushing cylinder is fixedly connected to a toggle block, the toggle block is slidably connected to a wedge frame, one end of the wedge frame is provided with a stroke limiting member, and the stroke limiting member is used to limit the maximum sliding stroke of the toggle block.

[0016] In the assembly system of the present invention, the conveying structure includes a guide rod, which is fixedly connected to the bottom of the wedge frame. A sliding plate is provided on the guide rod, and the sliding plate slides up and down along the guide rod. A ball screw is also provided on the sliding plate, and a screw matching block that cooperates with the ball screw is also provided on one end of the ball screw. A conveying block is installed below the screw matching block, and the conveying block is used to move the iron core toward one end close to the guide structure.

[0017] In the assembly system of the present invention, the clamping structure includes a connecting member and two limiting plates, and the two limiting plates are fixedly connected above the accommodating frame.

[0018] The limiting plate is used to prevent the core from shifting during transportation. A connecting plate is installed on the top of the connecting piece, and a driving cylinder is installed under the connecting plate. The output shafts at both ends of the driving cylinder are respectively connected to the clamping plates. The driving cylinder controls the two clamping plates to move closer to or farther away from each other.

[0019] The clamp plates are brought close to each other to clamp the iron core, a conical head is provided at the upper end of the clamp plates, the larger end of the conical head is located at the top of the clamp plates, and a locking groove is provided at the lower end of the clamp plates. When the clamp plates move in a direction approaching each other, the clamp plates clamp the iron core, and the iron core is located in the locking groove.

[0020] In the assembly system of the present invention, the fixing structure includes a fixing rod, which is installed on one side of the accommodating frame, and a skateboard frame is installed on the fixing rod.

[0021] The top of the skateboard frame is connected to a lateral adjustment cylinder, the output shaft of which is fixedly connected to an assembly cone head, and the lateral adjustment cylinder controls the lateral movement of the assembly cone head.

[0022] A longitudinal adjustment cylinder is also arranged on the top of the slide frame, the output shaft of the longitudinal adjustment cylinder is fixedly connected to the upper surface of the accommodating frame, and the longitudinal adjustment cylinder controls the slide frame to move up and down along the fixed rod.

[0023] The assembly system of the present invention further includes an iron core insertion assembly, a shaft sleeve assembly assembly and a blanking assembly, wherein the iron core insertion assembly includes a third mounting frame, and the third mounting frame is connected to a third mounting plate, wherein:

[0024] The third mounting frame is fixedly connected to both sides of the accommodating frame, a third mounting plate is arranged on the third mounting frame, a second control cylinder is arranged on the top of the third mounting plate, a second positioning cone is fixedly connected to the output shaft of the second control cylinder, and the second control cylinder controls the second positioning cone to move up and down.

[0025] In the assembly system of the present invention, the shaft sleeve assembly assembly includes a fourth mounting frame, and the fourth mounting frame is fixedly connected to one side of the accommodating frame.

[0026] The back of the fourth mounting frame is connected to a third control motor, the output shaft of the third control motor is connected to a transmission wheel, the transmission wheel is connected to the moving frame via a chain, and a moving cylinder is arranged on the moving frame.

[0027] The output shaft of the movable cylinder is connected to an opening and closing cylinder, and the output shaft of the opening and closing cylinder is connected to a clamping claw. The movable cylinder is used to control the opening and closing cylinder and the clamping claw connected thereto to move up and down, and the opening and closing cylinder is used to control the two clamping claws to move closer to or away from each other.

[0028] In the assembly system of the present invention, the unloading assembly includes a fifth mounting frame, a positioning steel bar and a guide plate, the fifth mounting frame is fixedly connected to the end of the accommodating frame, the top of the fifth mounting frame has a bevel, the positioning steel bar is fixed on the bevel, wherein the guide plate is installed on one side of the fifth mounting frame, and is used to guide the permanent magnet rotor to the positioning steel bar.

[0029] The three-phase asynchronous motor permanent magnet rotor and rotor assembly system of the present invention have the following beneficial effects:

[0030] The iron core sheet of the permanent magnet rotor of the three-phase asynchronous motor of the present invention is composed of the same number of iron core blocks and permanent magnets, and the iron core blocks include a main iron core and an auxiliary iron core. The main iron core has a concave opening slot, and the auxiliary iron core is located in the concave opening slot. The top of the concave opening slot and the bottom of the auxiliary iron core are both provided with a protrusion 1, and the top of the concave opening slot and the bottom of the auxiliary iron core constitute a first magnetic isolation slot, which reduces the magnetic leakage coefficient of the permanent magnet while also improving the mechanical strength of the iron core sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the permanent magnet rotor of the three-phase asynchronous motor of the present invention;

[0032] Figure 2 It is a partial structural schematic diagram of the permanent magnet rotor of the three-phase asynchronous motor of the present invention;

[0033] Figure 3 It is a structural schematic diagram of the permanent magnet rotor assembly system of the present invention;

[0034] Figure 4 for Figure 3 A schematic diagram of the enlarged structure at A in the middle;

[0035] Figure 5 It is a structural schematic diagram of the conveying assembly of the present invention;

[0036] Figure 6 It is a partial structural schematic diagram of the conveying assembly of the present invention;

[0037] Figure 7 A partially covered view of the shaft assembly of the present invention;

[0038] Figure 8 It is a partial structural schematic diagram of the rotating shaft assembly component of the present invention;

[0039] Fig. 9 It is a structural schematic diagram of the core adjustment assembly of the present invention;

[0040] Fig.10 It is a partial structural schematic diagram of the core adjustment assembly of the present invention;

[0041] Fig.11 It is a partial structural schematic diagram of the core adjustment assembly of the present invention;

[0042] Fig.12 It is a structural schematic diagram of the iron core insertion assembly of the present invention;

[0043] Fig.13 It is a schematic diagram of the installation structure of the shaft sleeve assembly component and the blanking component of the present invention;

[0044] The reference numerals are:

[0045] 10-permanent magnet rotor, 11-rotating shaft, 12-shaft sleeve, 13-clamp, 14-permanent magnet, 15-slot wedge, 16-main iron core, 16'1-bump, 16'2-first magnetic isolation groove, 16'3-tangent arc, 16'4-boundary arc, 17-auxiliary iron core, 17'1-second magnetic isolation groove, 17'2-cage, 18-winding area,

[0046] 20-assembly system, 21-accommodation component, 211-support, 212-first mounting plate, 213-accommodation frame,

[0047] 22-conveying assembly, 221-first mounting frame, 222-first control motor, 223-storage chamber, 224-wedge frame, 224'1-baffle, 225-pressure limiting member, 226-guide structure, 226'1-side member, 226'2-main side member, 226'3-arc side member, 227-propelling structure, 227'1-propelling cylinder, 227'2-sliding block, 227'3-stroke limiting member, 228-conveying structure, 228'1-guide rod, 228'2-sliding plate, 228'3-ball screw, 228'4-screw matching block, 228'5-conveying block,

[0048] 23-shaft assembly component, 231-clamping structure, 231'1-connector, 231'2-limiting plate, 231'3-notch, 231'4-connecting plate, 231'5-driving cylinder, 231'6-clamp plate, 231'7-conical head, 231'8-engaging groove, 232-fixed structure, 232'1-fixed rod, 232'2-slide frame, 232'3-lateral adjustment cylinder, 232'4-assembly cone head, 232'5-longitudinal adjustment cylinder, 232'6-chain,

[0049] 24- iron core adjustment assembly, 241- second mounting frame, 242- mounting rod, 243- second mounting plate, 244- first control cylinder, 245- second control motor, 246- transmission member, 247- sliding shaft, 248- first positioning cone, 249- clamping structure, 249'1- bearing seat, 249'2- slider, 249'3- opposing cylinder, 249'4- moving member, 249'5- arc clamping plate, 249'6- upper end, 249'7- clamping rod, 249'8- reset spring,

[0050] 25- iron core insertion assembly, 251- third mounting frame, 252- third mounting plate, 253- second control cylinder, 254- second positioning cone,

[0051] 26-shaft sleeve assembly assembly, 261-fourth mounting frame, 262-third control motor, 263-fourth mounting plate, 264-transmission wheel, 265-moving frame, 266-moving cylinder, 267-opening and closing cylinder, 268-gripping jaws, 269-test piece, 27-unloading assembly, 271-fifth mounting frame, 272-positioning steel bar, 273-guide plate. DETAILED DESCRIPTION

[0052] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0053] like Figure 1 to Figure 2 As shown, the permanent magnet rotor of the three-phase asynchronous motor of the present invention includes a rotating shaft 11, a sleeve 12 and an iron core. The sleeve 12 and the iron core are installed on the rotating shaft. The iron core includes a plurality of iron core sheets. The sleeve 12 is used to limit the axial movement of the plurality of iron core sheets along the rotating shaft 11. The iron core sheets are composed of the same number of iron core blocks and permanent magnets 14. The iron core blocks include a main iron core 16 and a secondary iron core 17. The main iron core 16 has a concave opening groove, and the secondary iron core 17 is located in the concave opening groove. The top of the concave opening groove and the bottom of the secondary iron core are both provided with a protrusion 16'1, and the top of the concave opening groove and the bottom of the secondary iron core constitute a first magnetic isolation groove 16'2. The secondary iron core 17 is provided with a second magnetic isolation groove 17'1. The first magnetic isolation groove 16'2 and the second magnetic isolation groove 17'1 are both located on both sides of the permanent magnet, and are used to reduce the leakage magnetic coefficient of the permanent magnet 14.

[0054] The main iron core 16 and the auxiliary iron core 17 are both slidably connected to the permanent magnet 14, and a slot wedge 15 is provided at one end of the permanent magnet 14, and the slot wedge 15 is used to limit the main iron core 16 and the auxiliary iron core 17 from sliding along the permanent magnet 14. Among them, tangent arcs 16'3 and boundary arcs 16'4 are also provided on both sides of the first magnetic isolation groove 16'2, so that the first magnetic isolation groove 16'2 forms an uneven air gap, which can effectively exchange the harmonic content of the air gap magnetic density.

[0055] Furthermore, since the structure of the permanent magnet rotor 10 is relatively special, this embodiment also discloses an assembly system 20 for assembling the permanent magnet rotor 10. Figures 3 to 13 As shown, the assembly system 20 includes a receiving assembly 21, a conveying assembly 22, a rotating shaft assembly assembly 23, a core adjustment assembly 24, a core insertion assembly 25, a sleeve assembly assembly 26, and a blanking assembly 27. The receiving assembly 21 includes a support 211, a mounting plate 212, and a receiving frame 213. The mounting plate 212 is fixedly connected to the top of the support 211, and the mounting plate 212 is used to support the conveying assembly 22, the rotating shaft assembly assembly 23, the core adjustment assembly 24, the core insertion assembly 25, the sleeve assembly assembly 26, and the blanking assembly 27. The receiving frame 213 is fixedly connected above the mounting plate 212 for transporting the permanent magnet rotor 10.

[0056] like Figures 4 to 6 As shown, the conveying assembly 22 includes a first mounting frame 221, which is fixedly connected to the mounting plate 212, a first control motor 222 is arranged on the top of the first mounting frame 221, and a ball screw is connected to the output shaft of the first control motor 222, and a storage chamber 223 is slidably connected to the side of the first mounting frame 221, and the first control motor 222 controls the storage chamber 223 to slide on the first mounting frame 221 via the ball screw. A wedge frame 224 is also arranged on one side of the storage chamber 223, and a baffle 224'1 is arranged and connected to one end of the wedge frame 224. The first control motor 222 moves the storage chamber 223 to the bottom of the first mounting frame 221, installs the rotating shaft 11 into the storage chamber 223, and then moves the storage chamber 223 to the top of the first mounting frame 221 through the first control motor 222, so that the storage chamber 223 is flush with the wedge frame 224, and the rotating shaft 11 in the storage chamber 223 slides toward the wedge frame 224. A guide structure 226 is provided and connected at one end of the baffle 224'1, and a push structure 227 is installed on one side of the guide structure 226. The push structure 227 includes a push cylinder 227'1, and the output shaft of the push cylinder 227'1 is fixedly connected to a toggle block 227'2, and the toggle block 227'2 is slidably connected to the baffle 224'1. A stroke limiting member 227'3 is provided and connected at one end of the baffle 224'1, and the stroke limiting member 227'3 is used to limit the maximum sliding stroke of the toggle block 227'2.

[0057] In this embodiment, the rotating shaft 11 in the storage chamber 223 slides toward the wedge-shaped frame 224. In the initial state, the output shaft of the push cylinder 227'1 is in an extended state, and the toggle block 227'2 is located at one end close to the stroke limiting member 227'3. The output shaft of the push cylinder 227'2 contracts to drive the toggle block 227'2 to move in the direction close to the guide structure 226, and the toggle block 227'2 pushes a rotating shaft 11 in the wedge-shaped frame 224 into the guide structure 226. The guide structure 226 is composed of two side pieces 226'1, a main side piece 226'2 and an arc side piece 226'3. The bottom of the main side piece 226'2 and the arc side piece 226'3 constitutes a rotating shaft outlet 226'4. After the rotating shaft 11 enters the guide structure 226, it is guided by the arc side piece 226'3 and finally slides out of the rotating shaft outlet 226'4. The rotating shaft 11 that slides out is inserted into the iron core by the rotating shaft assembly component 23. Among them, the conveying component 22 also includes a conveying structure 228, and the conveying structure 228 transports the iron core to the bottom of the rotating shaft transfer component 23. The conveying structure 228 includes a guide rod 228'1, and the guide rod 228'1 is fixedly connected to the bottom of the wedge frame 224. A sliding plate 228'2 is arranged on the guide rod 228'1, and the sliding plate 228'2 slides up and down along the guide rod 228'1. A ball screw 228'3 is also arranged and connected to the sliding plate 228'2, and a screw matching block 228'4 that cooperates with the ball screw is also arranged at one end of the ball screw 228'3. A conveying block 228'5 is installed below the screw matching block 228'4, and the conveying block 228'5 is used to move the permanent magnet rotor 10 toward the end close to the guide structure 226.

[0058] like Figure 4 and Figure 5 As shown, after the iron cores are stacked, they are placed at one end of the accommodating frame 213. The sliding plate 228'1 is adjusted to move up and down by the guide rod 228'1, and the ball screw 228'3 on the sliding plate 228'1 and its matching parts move together with the sliding plate 228'1, so that the conveying block 228'5 is located on one side of the iron core. The ball screw 228'3 drives the screw matching block 228'4 and the conveying block 228'5 below it to move in the direction close to the guide structure 226, and the conveying block 228'5 pushes the iron core to the bottom of the rotating shaft transfer assembly 23.

[0059] like Figures 7 and 8As shown, the shaft assembly component 23 includes a clamping structure 231 and a fixing structure 232. The clamping structure 231 includes a connecting member 231'1 and two limiting plates 231'2, and the two limiting plates 231'2 are fixedly connected above the accommodating frame 213. A notch 231'3 is formed between the two limiting plates 231'2, and the permanent magnet rotor 10 moves from the notch 231'3 to between the two limiting plates 231'2. The limiting plates 231'2 are used to prevent the permanent magnet rotor 10 from shifting during transportation. A connecting plate 231'4 is installed on the top of the connecting member 231'1, and a driving cylinder 231'5 is installed under the connecting plate 231'4. The output shafts at both ends of the driving cylinder 231'5 are respectively connected to the clamping plates 231'6, and the driving cylinder 231'5 controls the two clamping plates 231'6 to move closer to or away from each other. The clamping plates 231'6 are brought close to each other to clamp the permanent magnet rotor 10. A conical head 231'7 is provided at the upper end of the clamping plate 231'6, and the larger end of the conical head 231'7 is located at the top of the clamping plate 231'6. A clamping groove 231'8 is provided at the lower end of the clamping plate 231'6. When the clamping plates 231'6 move in a direction of approaching each other, the clamping plates 231'6 clamp the permanent magnet rotor 10, and the iron core of the permanent magnet rotor 10 is located in the clamping groove 231'8.

[0060] In this embodiment, the ball screw 228'3 drives the conveying block 228'5 to push the iron core between the two clamping plates 231'6, and the output shaft of the driving cylinder 231'5 controls the two clamping plates 231'6 to approach each other, so that the engaging groove 231'8 at the lower end of the clamping plate 231'6 clamps the iron core. Subsequently, the rotating shaft 11 is inserted into the iron core through the fixed structure 232, wherein the fixed structure 232 includes a fixed rod 232'1, the fixed rod 232'1 is installed on one side of the accommodating frame 213, and a slide frame 232'2 is installed on the fixed rod 232'1. A lateral adjustment cylinder 232'3 is arranged on the top of the slide frame 232'2, and the output shaft of the lateral adjustment cylinder 232'3 is fixedly connected to the assembly cone head 232'4, and the lateral adjustment cylinder 232'3 controls the lateral movement of the assembly cone head 232'4. A longitudinal adjustment cylinder 232'5 is also provided on the top of the slide frame 232'2, and the output shaft of the longitudinal adjustment cylinder 232'5 is fixedly connected to the upper surface of the accommodating frame 231, and the longitudinal adjustment cylinder 232'5 controls the slide frame 232'2 to move up and down along the fixed rod 232'1. A chain 232'6 is also provided on one side of the slide frame 232'2, and the chain 232'6 moves up and down with the slide frame 232'2 to ensure the stability of the movement of the slide frame 232'2.

[0061] In this embodiment, the rotating shaft 11 sliding out of the rotating shaft outlet 226'4 falls on one side of the assembly cone head 232'4. The output shaft of the lateral adjustment cylinder 232'3 is controlled to extend so that the assembly cone head 232'4 clamps the rotating shaft 11. Then the output shaft of the longitudinal adjustment cylinder 232'5 is controlled to retract, the slide frame 232'2 and its upper parts move downward, and the rotating shaft 11 is assembled into the iron core. Among them, the upper end of the clamp plate 231'6 has a cone head 231'7, which makes it easier to assemble the rotating shaft 11 into the iron core.

[0062] Since the core is composed of multiple stacked core pieces, the core pieces will be offset circumferentially or radially during the transportation of the core. When assembling the shaft, the core is clamped by two clamping plates 231'6 to limit the radial offset of the core pieces, but the circumferential offset of the core pieces cannot be limited, which affects the subsequent installation efficiency. Therefore, it is necessary to adjust the circumferential offset angle of the core pieces through the core adjustment assembly 24.

[0063] like Figures 9 to 11 As shown, the core adjustment assembly 24 includes a second mounting frame 241, and mounting rods 242 are also arranged on both sides of the second mounting frame 241. The top of the mounting rod 242 is connected to a second mounting plate 243, and the second mounting plate 243 is connected to a first control cylinder 244. The output shaft of the first control cylinder 244 is a hollow structure, and a sliding shaft 247 is installed inside the output shaft. One end of the sliding shaft 247 is fixedly connected to a first positioning cone 248, and the sliding shaft 247 and the first positioning cone 248 extend or contract together with the output shaft of the first control cylinder 244. A second control motor 245 is also installed on one side of the first control cylinder 244, and the output shaft of the second control motor 245 is connected to the sliding shaft 247 via a transmission member 246. The sliding shaft 247 has a spline sleeve built in it, and the spline sleeve enables the first control cylinder 244 to drive the first positioning cone 248 to slide up and down, and the second control motor 245 can drive the first positioning cone 248 to rotate circumferentially.

[0064] like Fig.10 As shown, a snap-fit ​​structure 249 is also provided above the second mounting frame 241, and the snap-fit ​​structure 249 includes a bearing seat 249'1, and opposing cylinders 249'3 are respectively provided at both ends of the bearing seat 249'1, and the output shaft of the opposing cylinder 249'3 is connected with a moving member 249'4. Slide blocks 249'2 are also provided on both sides of the bearing seat 249'1, and the slide blocks 249'2 are located on both sides of the moving member 249'4, and are used to prevent the moving member 249'4 from deviating to the left and right during the movement. An arc-shaped clamping plate 249'5 is installed above the moving member 249'4, and an upper end 249'6 is provided above the arc-shaped clamping plate 249'5, and a plurality of clamping rods 249'7 are slidably connected to the inner cavity of the upper end 249'6, and the clamping rods 249'7 are slidably connected to the inner cavity of the upper end 249'6 through a reset spring 249'8.

[0065] When in use, first control the output shafts of the two opposing cylinders 249'3 to extend, and the two moving parts 249'4 and the arc-shaped clamping plates 249'5 installed thereon move toward each other, and the upper end 249'6 on the top of the arc-shaped clamping plates 249'5 clamps the iron core. At this time, the first positioning cone 248 is driven downward by the first control cylinder 244 to make the first positioning cone 248 cooperate with the rotating shaft 11. The second control motor 245 drives the first positioning cone 248 and the rotating shaft 11 that cooperates with it to rotate together. Since the rotating shaft 11 runs through the middle of the iron core sheet and has an interference fit with the iron core sheet, the iron core sheet will rotate with the rotating shaft 11.

[0066] If the core sheet does not deviate circumferentially during transportation, the plurality of clamping rods 249'7 vertically installed at the upper end 249'6 can all be clamped into the winding area 18 of the core sheet to limit the rotation of the core sheet. If the first positioning cone 248 cannot drive the core sheet to rotate through the rotating shaft 11, it means that the core sheet does not deviate circumferentially.

[0067] If the core piece is circumferentially offset during transportation, the plurality of clamping rods 249'7 vertically installed at the upper end 249'6 cannot be inserted into the offset core piece, that is, the clamping rods 249'7 no longer restrict the rotation of the core piece that has been circumferentially offset. The first positioning cone 248 drives the core piece to rotate through the rotating shaft 11 until the winding area 18 on the core piece is locked with the clamping rods 249'7, completing the position adjustment of the core piece.

[0068] After the circumferential position adjustment of the core piece is completed, the adjustment accuracy is further tested by the core insertion assembly 25. Fig.12 As shown, the core insertion assembly 25 includes a third mounting frame 251, and a third mounting plate 252 is connected to the third mounting frame 251. The third mounting frame 251 is fixedly connected to both sides of the accommodating frame 213, and a third mounting plate 252 is arranged on the third mounting frame 251. A second control cylinder 253 is arranged on the top of the third mounting plate 252, and a second positioning cone 254 is fixedly connected to the output shaft of the second control cylinder 253. The second control cylinder 253 controls the second positioning cone 254 to move up and down.

[0069] In this embodiment, the iron core whose circumferential offset has been adjusted by the iron core adjustment assembly 24 is transported to directly below the second control cylinder 253. The output shaft of the second control cylinder 253 drives the second positioning cone 254 to move downward. The second positioning cone 254 penetrates the entire iron core piece, thereby ensuring that each iron core piece is adjusted to a predetermined position by the iron core adjustment assembly 24.

[0070] like Fig.13As shown, the sleeve assembly assembly 26 includes a fourth mounting frame 261, and the fourth mounting frame 261 is fixedly connected to one side of the accommodating frame 213. The back of the fourth mounting frame 261 is provided with a third control motor 262, and the output shaft of the third control motor 262 is connected to a transmission wheel 264. The transmission wheel 264 is connected to a moving frame 265 via a chain, and the third control motor 262 controls the moving frame 265 to move left and right on the fourth mounting frame 261. A moving cylinder 266 is provided on the moving frame 265. An opening and closing cylinder 267 is connected to the output shaft of the moving cylinder 266, and a clamping claw 268 is connected to the output shaft of the opening and closing cylinder 267. The moving cylinder 266 is used to control the opening and closing cylinder 267 and the clamping claw 268 connected thereto to move up and down, and the opening and closing cylinder 267 is used to control the two clamping claws 268 to move closer to each other or away from each other. The opening and closing cylinder 267 controls the two clamping claws 268 to move closer to each other, which is used to clamp the sleeve 12. The sleeve 12 is driven downward by the moving cylinder 266 to make the sleeve 12 fit with the rotating shaft 11. Two test pieces 269 are also arranged at the back of the fourth mounting frame 261. After the sleeve 12 and the rotating shaft 11 are assembled, they are tested by the test pieces 269.

[0071] The material removal assembly 27 includes a fifth mounting frame 271, a positioning steel bar 272 and a guide plate 273. The fifth mounting frame 271 is fixedly connected to the end of the accommodating frame 213, and the top of the fifth mounting frame 271 has a bevel, and the positioning steel bar 272 is fixed on the bevel. The guide plate 273 is installed on one side of the fifth mounting frame 271, and is used to guide the permanent magnet rotor 10 to the positioning steel bar 272, so that it can fall freely along the positioning steel bar 272.

[0072] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A three-phase asynchronous motor permanent magnet rotor assembly system, used for assembling a three-phase asynchronous motor permanent magnet rotor, The permanent magnet rotor of the three-phase asynchronous motor comprises a rotating shaft, a sleeve and an iron core, wherein the sleeve and the iron core are mounted on the rotating shaft, the iron core comprises a plurality of iron core sheets, and the sleeve is used to limit the axial movement of the plurality of iron core sheets along the rotating shaft, and is characterized in that: The iron core sheet is composed of the same number of iron core blocks and permanent magnets. The iron core blocks include a main iron core and a secondary iron core. The main iron core has a concave opening slot. The secondary iron core is located in the concave opening slot. The top of the concave opening slot and the bottom of the secondary iron core are both provided with protrusions. The top of the concave opening slot and the bottom of the secondary iron core form a first magnetic isolation slot. The secondary iron core is provided with a second magnetic isolation slot. The first magnetic isolation slot and the second magnetic isolation slot are both located on both sides of the permanent magnet. The main iron core and the auxiliary iron core are both slidably connected to the permanent magnet. A slot wedge is provided at one end of the permanent magnet, and the slot wedge is used to limit the main iron core and the auxiliary iron core from sliding along the permanent magnet. Characterized in that the assembly system comprises: A containing assembly, the containing assembly comprising a support, a mounting plate and a containing frame, the containing frame being used to transport the iron core to move in one direction; A conveying assembly, the conveying assembly includes a first mounting frame and a wedge-shaped frame, one end of the wedge-shaped frame is provided with a guide structure, one side of the guide structure is provided with a pushing structure, one side of the first mounting frame is also provided with a conveying structure, and the conveying structure is used to push the iron core to the bottom of the rotating shaft transfer assembly; A rotating shaft assembly component, the rotating shaft assembly component comprising a clamping structure for clamping the rotating shaft and a fixing structure, the fixing structure being used to assemble the rotating shaft with the iron core; An iron core adjustment component, the iron core adjustment component includes a second mounting frame, a first control cylinder, a control motor and a first positioning cone, the first control cylinder drives the first positioning cone to slide up and down, and the control motor can drive the first positioning cone to rotate circumferentially, a clamping structure is also provided at the bottom of the second mounting frame, the clamping structure includes a bearing seat, opposite cylinders are respectively provided at both ends of the bearing seat, the output shafts of the opposite cylinders are connected to a moving part, an arc-shaped clamping plate is installed above the moving part, an upper end head is provided above the arc-shaped clamping plate, a plurality of clamping rods are slidably connected to the inner cavity of the upper end head, and the clamping rods are slidably connected to the inner cavity of the upper end head through a reset spring.

2. The assembly system according to claim 1, characterized in that: The second mounting frame is provided with a first control cylinder, the output shaft of the first control cylinder is a hollow structure, a sliding shaft is installed inside the output shaft, one end of the sliding shaft is fixedly connected to the first positioning cone, the sliding shaft and the first positioning cone move together with the output shaft of the first control cylinder, and a control motor is also installed on one side of the first control cylinder, the output shaft of the control motor is connected to the sliding shaft via a transmission member, and a spline sleeve is built in the sliding shaft, and the spline sleeve enables the first control cylinder to drive the first positioning cone to slide up and down, and the control motor can drive the first positioning cone to rotate circumferentially.

3. The assembly system according to claim 1, characterized in that: The guide structure is composed of two side pieces, a main side piece and an arc side piece. The bottoms of the main side piece and the arc side piece form a rotating shaft outlet. After the rotating shaft enters the guide structure, it is guided by the arc side piece and finally slides out of the rotating shaft outlet. The pushing structure includes a pushing cylinder, the output shaft of the pushing cylinder is fixedly connected to a toggle block, the toggle block is slidably connected to a wedge frame, one end of the wedge frame is provided with a stroke limiting member, and the stroke limiting member is used to limit the maximum sliding stroke of the toggle block.

4. The assembly system according to claim 3, characterized in that: The conveying structure includes a guide rod, which is fixedly connected to the bottom of the wedge frame. A sliding plate is provided on the guide rod, and the sliding plate slides up and down along the guide rod. A ball screw is also provided on the sliding plate, and a screw matching block that cooperates with the ball screw is also provided at one end of the ball screw. A conveying block is installed below the screw matching block, and the conveying block is used to move the iron core toward one end close to the guide structure.

5. The assembly system according to claim 1, characterized in that: The clamping structure includes a connecting member and two limiting plates, and the two limiting plates are fixedly connected above the accommodating frame. The limiting plate is used to prevent the core from shifting during transportation. A connecting plate is installed on the top of the connecting piece, and a driving cylinder is installed under the connecting plate. The output shafts at both ends of the driving cylinder are respectively connected to the clamping plates. The driving cylinder controls the two clamping plates to move closer to or farther away from each other. The clamp plates are brought close to each other to clamp the iron core, a conical head is provided at the upper end of the clamp plates, the larger end of the conical head is located at the top of the clamp plates, and a locking groove is provided at the lower end of the clamp plates. When the clamp plates move in a direction approaching each other, the clamp plates clamp the iron core, and the iron core is located in the locking groove.

6. The assembly system according to claim 5, characterized in that: The fixing structure includes a fixing rod, which is installed on one side of the accommodating frame, and a skateboard frame is installed on the fixing rod. The top of the skateboard frame is connected to a lateral adjustment cylinder, the output shaft of which is fixedly connected to an assembly cone head, and the lateral adjustment cylinder controls the lateral movement of the assembly cone head. A longitudinal adjustment cylinder is also arranged on the top of the slide frame, the output shaft of the longitudinal adjustment cylinder is fixedly connected to the upper surface of the accommodating frame, and the longitudinal adjustment cylinder controls the slide frame to move up and down along the fixed rod.

7. The assembly system according to claim 1, characterized in that: It also includes an iron core insertion component, a shaft sleeve assembly component and a blanking component, wherein the iron core insertion component includes a third mounting frame, and the third mounting frame is connected to a third mounting plate, wherein: The third mounting frame is fixedly connected to both sides of the accommodating frame, a third mounting plate is arranged on the third mounting frame, a second control cylinder is arranged on the top of the third mounting plate, a second positioning cone is fixedly connected to the output shaft of the second control cylinder, and the second control cylinder controls the second positioning cone to move up and down.

8. The assembly system according to claim 7, characterized in that: The shaft sleeve assembly assembly includes a fourth mounting frame, which is fixedly connected to one side of the accommodating frame. The back of the fourth mounting frame is connected to a third control motor, the output shaft of the third control motor is connected to a transmission wheel, the transmission wheel is connected to the moving frame via a chain, and a moving cylinder is arranged on the moving frame. The output shaft of the movable cylinder is connected to an opening and closing cylinder, and the output shaft of the opening and closing cylinder is connected to a clamping claw. The movable cylinder is used to control the opening and closing cylinder and the clamping claw connected thereto to move up and down, and the opening and closing cylinder is used to control the two clamping claws to move closer to or away from each other.

9. The assembly system according to claim 7, characterized in that: The unloading assembly includes a fifth mounting frame, a positioning steel bar and a guide plate. The fifth mounting frame is fixedly connected to the end of the accommodating frame. The top of the fifth mounting frame has a beveled edge, and the positioning steel bar is fixed on the beveled edge. The guide plate is installed on one side of the fifth mounting frame and is used to guide the permanent magnet rotor to the positioning steel bar.

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