Iron core structure for industrial motor

Abstract

The utility model discloses an iron core structure for an industrial motor, which comprises a rotor iron core and a stator iron core arranged on the outer side of the rotor iron core, and is characterized in that the rotor iron core comprises a rotor shaft fixing column and a plurality of rotor punching sheet groups formed by stacking a plurality of rotor punching sheets together; the side surface of the rotor shaft fixing column is provided with first installation grooves corresponding to the plurality of rotor punching sheet groups at equal angles, the end part of each rotor punching sheet of the rotor punching sheet groups is provided with a first installation block, and the first installation blocks are inserted into the first installation grooves. The stator core comprises a stator fixing ring and a plurality of stator punching sheet groups formed by stacking a plurality of stator punching sheets, second mounting grooves corresponding to the plurality of stator punching sheet groups are formed in the inner side surface of the stator fixing ring at equal angles, and a second mounting block is arranged at the end part of each stator punching sheet of the stator punching sheet groups. The iron core structure for the industrial motor has excellent stability and convenience in assembly and maintenance.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor core technical field, concretely is a kind of core structure for industrial motor. BACKGROUND

[0002] In the field of industrial motor, the core structure as the core component of motor, its design, manufacturing and assembly quality are directly related to the performance, efficiency and life of motor. The traditional core structure often adopts multiple integrated punching sheet to be directly stacked together to form rotor core and stator core, once the rotor punching sheet and stator punching sheet need to be repaired or replaced, the whole is often disassembled, increase maintenance cost, there are also some split rotor core and stator core, but the assembly process is relatively complex, and the stability after assembly is poor. SUMMARY

[0003] The utility model aims at providing a kind of core structure for industrial motor, it has excellent stability and assembly maintenance convenience in structure, to solve the problems raised in the above background technology.

[0004] To achieve the above object, the utility model provides the following technical scheme:

[0005] A kind of core structure for industrial motor, including rotor core and as well as the stator core of being arranged at its outer side;

[0006] The rotor core includes rotor shaft fixed column and multiple groups of the rotor punching sheet group stacked together by multiple rotor punching sheets, the middle part of the rotor shaft fixed column is provided with rotor shaft fixing hole, the side surface of the rotor shaft fixed column is provided with first installation slot corresponding to multiple rotor punching sheet groups at equal angle, each rotor punching sheet end of the rotor punching sheet group is provided with first mounting block, the first mounting block is inserted in the first installation slot, the rotor punching sheet of the uppermost end and the lowermost end of the rotor punching sheet group is respectively tightly attached on the upper and lower groove wall of the first installation slot, the upper and lower faces of the rotor shaft fixed column are both provided with first rotor installation hole communicated with the first installation slot, second rotor installation hole is opened in the mounting block, the rotor punching sheet group is fixedly installed in the first installation slot by first installation bolt, the first rotor installation hole and the second rotor installation hole, the rotor shaft fixed column and multiple rotor punching sheet groups form multiple rotor winding grooves;

[0007] The stator core comprises a stator fixing ring and a plurality of groups of stator lamination stacks, second installation grooves corresponding to the plurality of groups of stator laminations are equiangularly arranged on the inner side of the stator fixing ring, second installation blocks are arranged on the end of each stator lamination of the group of stator laminations, the second installation blocks are inserted into the second installation grooves, the stator laminations at the uppermost end and the lowermost end of the group of stator laminations are tightly attached to the upper and lower groove walls of the second installation grooves, first stator installation holes communicating with the second installation grooves are arranged on the upper and lower surfaces of the stator fixing ring, second stator installation holes are arranged on the second installation blocks, the group of stator laminations is fixedly installed in the second installation grooves through second installation bolts, the first stator installation holes and the second stator installation holes, and a plurality of stator winding grooves are formed between the stator fixing ring and the plurality of groups of stator laminations.

[0008] Preferably, at least two first limiting grooves are arranged on the rotor shaft fixing column and the first installation block, and first limiting blocks corresponding to the first limiting grooves are fixedly welded on the first installation bolt.

[0009] Preferably, at least two second limiting grooves are arranged on the stator fixing ring and the second installation block, and second limiting blocks corresponding to the second limiting grooves are fixedly welded on the second installation bolt.

[0010] Preferably, a heat dissipation hole is arranged on each rotor lamination of the group of rotor laminations.

[0011] Preferably, the heat dissipation holes on the group of rotor laminations gradually move away from the axis at a preset angle in the direction from the middle part to the end part.

[0012] Preferably, a plurality of first fixing grooves are arranged on the outer side of the stator fixing ring.

[0013] Preferably, a second fixing groove is arranged on each stator lamination of the group of stator laminations, the number of the first fixing grooves and the second fixing grooves is the same, and the first fixing grooves and the second fixing grooves are oppositely arranged one by one.

[0014] Preferably, a lock washer is arranged on the first installation bolt and the second installation bolt.

[0015] Preferably, the rotor shaft fixing column, each rotor lamination of the plurality of groups of rotor laminations, the stator fixing ring and each stator lamination of the plurality of groups of stator laminations are integrally formed in a carbon fiber structure.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] The rotor core of the iron core structure for industrial motor is fixed through the cooperation of the first mounting groove on the rotor shaft fixing column and the first mounting block on the rotor lamination set, and the use of the first mounting bolt, the first rotor mounting hole and the second rotor mounting hole, so that the stable installation of the rotor lamination set on the rotor shaft fixing column is ensured, the overall stability of the rotor core is improved, the assembly process is simplified, the production efficiency is improved, when the rotor lamination needs to be repaired or replaced, the rotor lamination can also be disassembled and reassembled more easily, the overall replacement is not needed, the maintenance cost is reduced; the stator core of the iron core structure for industrial motor is fixed through the cooperation of the second mounting groove on the stator fixing ring and the second mounting block on the stator lamination set, and the use of the second mounting bolt, the first stator mounting hole and the second stator mounting hole, so that the stable installation of the stator lamination set on the stator fixing ring is ensured, the overall stability of the stator core is improved, the assembly process is simplified, the production efficiency is improved, when the stator lamination needs to be repaired or replaced, the stator lamination can also be disassembled and reassembled more easily, the overall replacement is not needed, the maintenance cost is reduced; the cooperation of the rotor core and the stator core of the iron core structure for industrial motor helps to reduce the vibration and noise during the operation of the industrial motor, and the iron core structure for industrial motor has excellent stability and assembly and maintenance convenience in structure. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A structure schematic view of the iron core structure for industrial motor is provided in the utility model.

[0019] Figure 2 A top view schematic view of the rotor core of the iron core structure for industrial motor is provided in the utility model.

[0020] Figure 3 A bottom view schematic view of the rotor core of the iron core structure for industrial motor is provided in the utility model.

[0021] Figure 4 A sectional view schematic view of the rotor shaft fixing column of the rotor core of the iron core structure for industrial motor is provided in the utility model.

[0022] Figure 5 A sectional view schematic view of the rotor lamination set of the rotor core of the iron core structure for industrial motor is provided in the utility model.

[0023] Figure 6 A structure schematic view of the rotor lamination of the rotor lamination set of the rotor core of the iron core structure for industrial motor is provided in the utility model.

[0024] Figure 7 A structure schematic view of the first mounting bolt of the rotor core of the iron core structure for industrial motor is provided in the utility model.

[0025] Figure 8The utility model provides a kind of structure schematic diagram of stator core of iron core structure for industrial motor;

[0026] Figure 9 The utility model provides a kind of sectional view schematic diagram of stator fixing ring of stator core of iron core structure for industrial motor;

[0027] Figure 10 The utility model provides a kind of structure schematic diagram of stator lamination of stator lamination group of stator core of iron core structure for industrial motor;

[0028] Figure 11 The utility model provides a kind of structure schematic diagram of second mounting bolt of stator core of iron core structure for industrial motor.

[0029] In the drawing: 1, rotor core;1-1, rotor shaft fixed column;1-2, rotor lamination group;1-3, rotor shaft fixing hole;1-4, first installation slot;1-5, first mounting block;1-6, first rotor mounting hole;1-7, second rotor mounting hole;1-8, first mounting bolt;1-9, rotor winding slot;1-10, first limiting slot;1-11, first limiting block;1-12, heat dissipation hole;

[0030] 2, stator core;2-1, stator fixing ring;2-2, stator lamination group;2-3, second installation slot;2-4, second mounting block;2-5, first stator mounting hole;2-6, second stator mounting hole;2-7, second mounting bolt;2-8, stator winding slot;2-9, second limiting slot;2-10, second limiting block;2-11, first fixed slot;2-12, second fixed slot. DETAILED DESCRIPTION

[0031] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0032] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0033] Please refer to Figures 1-11The utility model provides an iron core structure for industrial motor, including rotor core 1 and and setting outside its stator core 2,

[0034] Rotor core 1 includes rotor shaft fixed post 1-1 and multiple groups of rotor lamination group 1-2 stacked by multiple rotor laminations, the middle part of rotor shaft fixed post 1-1 is provided with rotor shaft fixing hole 1-3, the side surface of rotor shaft fixed post 1-1 is provided with first installation slot 1-4 corresponding with multiple rotor lamination groups at equal angle, first installation block 1-5 is arranged on each rotor lamination end of rotor lamination group 1-2, first installation block 1-5 is inserted in first installation slot 1-4, the rotor lamination of the uppermost end and the lowermost end of rotor lamination group 1-2 is respectively tightly attached on the upper and lower groove wall of first installation slot 1-4, the upper and lower surface of rotor shaft fixed post 1-1 is provided with first rotor installation hole 1-6 being communicated with first installation slot 1-4, second rotor installation hole 1-7 is provided on installation block 1-5, rotor lamination group 1-2 is fixedly installed in first installation slot 1-4 through first installation bolt 1-8, first rotor installation hole 1-6 and second rotor installation hole 1-7, and multiple rotor winding grooves 1-9 are formed between rotor shaft fixed post 1-1 and multiple rotor lamination groups 1-2.

[0035] The rotor core of the iron core structure for industrial motor is fixed through the cooperation of first installation slot 1-4 on rotor shaft fixed post 1-1 and first installation block 1-5 on rotor lamination group 1-2, and uses first installation bolt 1-8, first rotor installation hole 1-6 and second rotor installation hole 1-7, which ensures the stable installation of rotor lamination group 1-2 on rotor shaft fixed post 1-1, improves the overall stability of rotor core, simplifies the assembly process, improves the production efficiency, and when the rotor lamination needs to be repaired or replaced, it can also be disassembled and reinstalled more easily, without the need for overall replacement, reducing the maintenance cost.

[0036] The stator core 2 comprises a stator fixed ring 2-1 and a plurality of stator lamination groups 2-2 stacked by a plurality of stator laminations, a plurality of second installation grooves 2-3 corresponding to the plurality of stator lamination groups 2-2 are evenly arranged on the inner side of the stator fixed ring 2-1, a second installation block 2-4 is arranged on each end of the stator lamination of the stator lamination group 2-2, the second installation block 2-4 is inserted into the second installation groove 2-3, the uppermost and lowermost stator laminations of the stator lamination group 2-2 are tightly attached to the upper and lower groove walls of the second installation groove 2-3, a first stator installation hole 2-5 in communication with the second installation groove 2-3 is arranged on the upper and lower surfaces of the stator fixed ring 2-1, a second stator installation hole 2-6 is arranged on the second installation block 2-4, the stator lamination group 2-2 is fixedly installed in the second installation groove 2-3 through the second installation bolt 2-7, the first stator installation hole 2-5 and the second stator installation hole 2-6, and a plurality of stator winding grooves 2-8 are formed between the stator fixed ring 2-1 and the plurality of stator lamination groups 2-2.

[0037] The stator core of the iron core structure for industrial motor is fixed through the cooperation of the second installation groove 2-3 on the stator fixed ring 2-1 and the second installation block 2-4 on the stator lamination group 2-2, and the use of the second installation bolt 2-7, the first stator installation hole 2-5 and the second stator installation hole 2-6, which ensures the stable installation of the stator lamination group 2-2 on the stator fixed ring 2-1, improves the overall stability of the stator core, simplifies the assembly process, improves the production efficiency, and also makes it easier to disassemble and reinstall when the stator lamination needs to be repaired or replaced, without the need for overall replacement, thereby reducing the maintenance cost.

[0038] The iron core structure for industrial motor helps to reduce the vibration and noise of the industrial motor during operation through the cooperation of the above rotor core and stator core, and has excellent stability in structure and assembly and maintenance convenience.

[0039] At least two first limiting grooves 1-10 are arranged on the rotor shaft fixing column 1-1 and the first installation block 1-5, a first limiting block 1-11 corresponding to the first limiting groove 1-10 is fixedly welded on the first installation bolt 1-8, at least two second limiting grooves 2-9 are arranged on the stator fixed ring 2-1 and the second installation block 2-4, and a second limiting block 2-10 corresponding to the second limiting groove 2-9 is fixedly welded on the second installation bolt 2-7, which can prevent the installation bolt from loosening during vibration or long-term operation, thereby further enhancing the overall stability and safety of the rotor core and the stator core, and the installation bolt is provided with a lock washer, which can further prevent the installation bolt from loosening during vibration or long-term operation, thereby maintaining the stability and safety of the rotor core and the stator core and reducing the failure and maintenance cost caused by bolt loosening.

[0040] The heat dissipation hole 1-12 is arranged on each rotor lamination of the rotor lamination group 1-2, which is helpful for dissipating the heat generated by the industrial motor during operation, improves the heat dissipation efficiency of the motor, can prolong the service life of the industrial motor, and can also improve the operation efficiency and stability of the industrial motor.

[0041] The first fixing groove 2-11 is arranged on the outer side of the stator fixing ring 2-1, which can be used for fixing during the beginning of winding during assembly. The second fixing groove 2-12 is arranged on each stator lamination of the stator lamination group 2-2. The number of the first fixing groove 2-11 and the second fixing groove 2-12 is the same, and they are arranged in pairs. The first fixing groove 2-11 and the second fixing groove 2-12 are used for fixing the wire group during winding, which makes the winding more stable. At the same time, the fixing grooves form additional support points on the surface of the stator fixing ring 2-1, which is helpful for resisting external stress and vibration, thereby improving the stability of the entire stator core.

[0042] The rotor shaft fixing column 1-1, each rotor lamination of the plurality of rotor lamination groups 1-2, the stator fixing ring 2-1, and each stator lamination of the plurality of stator lamination groups 2-2 are integrally formed by carbon fiber. Carbon fiber material has the characteristics of high strength, low density, and good thermal stability. The use of carbon fiber integrally formed structure can greatly reduce the weight of the rotor core and the stator core, improve the operation efficiency of the motor, and at the same time, the carbon fiber material also has good corrosion resistance and wear resistance, which can prolong the service life of the industrial motor.

[0043] During the assembly of the rotor core of the industrial motor core structure, a plurality of rotor lamination groups 1-2 are prepared to ensure the correct number of rotor laminations in each group. The first mounting block 1-5 of the rotor lamination group 1-2 is inserted into the first mounting groove 1-4 of the rotor shaft fixing column 1-1 to ensure that the uppermost and lowermost rotor laminations of the rotor lamination group 1-2 are tightly attached to the upper and lower groove walls of the first mounting groove 1-4. The first mounting bolt 1-8 is inserted through the first rotor mounting hole 1-6 and the second rotor mounting hole 1-7, and then locked after adding a lock washer. The rotor winding slot 1-9 formed between the rotor shaft fixing column 1-1 and the plurality of rotor lamination groups 1-2 is wound with a winding, and the rotor shaft fixing hole 1-3 is fixed on the rotor shaft.

[0044] When the stator core of the core structure of the industrial motor is assembled, a plurality of stator lamination groups 2-2 are prepared, the number of stator laminations of each group is ensured to be correct, the second mounting block 2-4 of the stator lamination group 2-2 is inserted into the second mounting groove 2-3 of the stator fixing ring 2-1, the uppermost and lowermost stator laminations of the stator lamination group 2-2 are ensured to be tightly attached to the upper and lower groove walls of the second mounting groove 2-3, the second mounting bolt 2-7 is passed through the first stator mounting hole 2-5 and the second stator mounting hole 2-6, and is locked after adding a lock washer, when the stator winding is wound in the stator winding slot 2-8 formed between the stator fixing ring 2-1 and the plurality of stator lamination groups 2-2, the fixing groove provides a preliminary fixing point, and the winding worker or the automatic equipment can embed the starting part or the key part of the wire group into the corresponding fixing groove.

[0045] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A core structure for an industrial electric machine, characterized by: The rotor core (1) and the stator core (2) arranged outside the rotor core (1); The rotor core (1) comprises a rotor shaft fixing column (1-1) and a plurality of rotor lamination groups (1-2) stacked by a plurality of rotor laminations, a rotor shaft fixing hole (1-3) is arranged in the middle of the rotor shaft fixing column (1-1), a plurality of first installation grooves (1-4) corresponding to the plurality of rotor lamination groups are arranged on the side surface of the rotor shaft fixing column (1-1) at equal angles, a first installation block (1-5) is arranged on the end of each rotor lamination of the rotor lamination group (1-2), the first installation block (1-5) is inserted into the first installation groove (1-4), the rotor laminations at the uppermost end and the lowermost end of the rotor lamination group (1-2) are tightly arranged on the upper and lower groove walls of the first installation groove (1-4), a first rotor installation hole (1-6) communicating with the first installation groove (1-4) is arranged on the upper and lower surfaces of the rotor shaft fixing column (1-1), a second rotor installation hole (1-7) is arranged on the installation block (1-5), the rotor lamination group (1-2) is fixedly installed in the first installation groove (1-4) through the first installation bolt (1-8), the first rotor installation hole (1-6) and the second rotor installation hole (1-7), and a plurality of rotor winding grooves (1-9) are formed between the rotor shaft fixing column (1-1) and the plurality of rotor lamination groups (1-2). The stator core (2) comprises a stator fixing ring (2-1) and a plurality of stator lamination groups (2-2) stacked by a plurality of stator laminations, a plurality of second installation grooves (2-3) corresponding to the plurality of stator lamination groups (2-2) are arranged on the inner side surface of the stator fixing ring (2-1) at equal angles, a second installation block (2-4) is arranged on the end of each stator lamination of the stator lamination group (2-2), the second installation block (2-4) is inserted into the second installation groove (2-3), the stator laminations at the uppermost end and the lowermost end of the stator lamination group (2-2) are tightly arranged on the upper and lower groove walls of the second installation groove (2-3), a first stator installation hole (2-5) communicating with the second installation groove (2-3) is arranged on the upper and lower surfaces of the stator fixing ring (2-1), a second stator installation hole (2-6) is arranged on the second installation block (2-4), the stator lamination group (2-2) is fixedly installed in the second installation groove (2-3) through the second installation bolt (2-7), the first stator installation hole (2-5) and the second stator installation hole (2-6), and a plurality of stator winding grooves (2-8) are formed between the stator fixing ring (2-1) and the plurality of stator lamination groups (2-2).

2. The core structure for an industrial electric machine according to claim 1, characterized by: At least two first limiting grooves (1-10) are arranged on the rotor shaft fixing column (1-1) and the first installation block (1-5), and a first limiting block (1-11) corresponding to the first limiting groove (1-10) is fixedly welded on the first installation bolt (1-8).

3. The core structure for an industrial electric machine according to claim 1, characterized by: At least two second limiting grooves (2-9) are formed on the stator fixing ring (2-1) and the second mounting block (2-4), and a second limiting block (2-10) corresponding to the second limiting groove (2-9) is fixedly welded on the second mounting bolt (2-7).

4. The core structure for an industrial electric machine according to claim 1, characterized by: A heat dissipation hole (1-12) is formed on each rotor lamination of the rotor lamination group (1-2).

5. A core structure for an industrial electric machine according to claim 4, characterized in that: The heat dissipation holes (1-12) on the rotor lamination group (1-2) gradually move away from the axis at a preset angle in the direction from the middle to the end.

6. The core structure for an industrial electric machine according to claim 1, characterized in that: A plurality of first fixing grooves (2-11) are formed on the outer side of the stator fixing ring (2-1).

7. A core structure for an industrial electric machine according to claim 6, characterized in that: A second fixing groove (2-12) is formed on each stator lamination of the stator lamination group (2-2), the number of the first fixing grooves (2-11) and the second fixing grooves (2-12) is the same, and they are oppositely arranged one by one.

8. The core structure for an industrial electric machine according to claim 1, characterized by: The first mounting bolt (1-8) and the second mounting bolt (2-7) are provided with anti-loosening washers.

9. The core structure for an industrial electric machine according to claim 1, characterized in that: The rotor shaft fixing column (1-1), each rotor lamination of the plurality of rotor lamination groups (1-2), the stator fixing ring (2-1), and each stator lamination of the plurality of stator lamination groups (2-2) are carbon fiber integrally formed structures.

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