Heating equipment for stator and rotor iron cores of motor

Abstract

The utility model discloses heating equipment for stator and rotor iron cores of a motor, and relates to the technical field of power generation, power transformation or power distribution. The heating equipment for the motor stator and rotor iron core comprises a base, a stator and rotor iron core fixing device and a stator and rotor iron core heating device, a motor stator and rotor iron core conveying belt is fixedly installed above the base, and a motor stator and rotor iron core heating equipment shell is fixedly installed above the base; the stator and rotor iron core fixing device is arranged above the motor stator and rotor iron core conveying belt, the stator and rotor iron core heating device is arranged above the base, a stator and a rotor are heated in a reciprocating mode through vertical reciprocating motion of an induction coil, the stator and the rotor are conveniently and evenly heated, and the induction coil is obliquely fixed to the surface of a movable plate. The distribution of the magnetic field on the stator and the rotor can be optimized, so that a more uniform or more concentrated heating effect is realized, the magnetic field acts on the surfaces of the stator and the rotor more uniformly, the energy utilization efficiency of the equipment is improved, the energy consumption is reduced, and the heating uniformity is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of power generation, power transformation or power distribution, in particular to a heating device for a motor stator and rotor iron core. Background Art

[0002] The rotor core of the motor is made of several stacked silicon steel sheets. During the production process of the electronic rotor, the rotor core needs to be fitted to the shaft from the outside, and the fitting method between the two is an interference fit. At present, the commonly used method for matching the rotor core and the rotating shaft in the market is the heat fitting method, that is, the rotor core is preheated before matching with the rotating shaft, and then the heated rotor core is assembled on the rotating shaft and cooled. The cooled rotor core realizes interference fit with the rotating shaft. The Chinese utility model patent, authorization announcement number "CN201672794U", discloses a tunnel furnace, including a cylindrical furnace body of a feeding section, a heating section and a discharging section. In the furnace body, the heating section is provided with a heating element and a material conveying mechanism composed of rollers, a driving wheel and a conveyor belt arranged at both ends of the heating section. The feeding port and the discharging port are arranged at both ends of the cylindrical furnace body, and an exhaust hole is arranged in the middle of the cylindrical furnace body. The feeding section, the heating section and the discharging section in the furnace body structure form an arched structure in which the heating section is higher than the feeding section and the discharging section, and the upper edges of the feeding port and the discharging port are lower than the height of the inner wall of the furnace body in the heating section.

[0003] The above technical solution of the tunnel furnace greatly reduces the air convection between the high temperature environment in the heating zone and the external normal temperature environment, improves the heat energy retention capacity in the heating section, and its energy saving effect reaches more than 30%. However, the above technical solution still has certain defects. When using the tunnel furnace for heating, the area of ​​the object to be heated directly facing the heating element, especially the lower end, has the fastest temperature rise due to the area closer to the heating unit, while the temperature in the middle part rises more slowly. The upper, middle and lower parts of the object are heated unevenly, and the temperature difference in different areas is large, which will lead to reduced energy utilization efficiency and increased energy consumption. For this reason, the utility model proposes a new solution. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a heating device for a motor stator and rotor core, which can solve the problem that when the tunnel furnace is used for heating, the area of ​​the object to be heated directly facing the heating element, especially the lower end, has the fastest temperature rise due to the area closer to the heating unit, while the temperature in the middle area rises more slowly, and the upper, middle and lower parts of the object are heated unevenly, and the temperature difference between different areas is large, which will lead to reduced energy utilization efficiency and increased energy consumption.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: a heating device for a motor stator and rotor core, comprising a base, a stator and rotor core fixing device, and a stator and rotor core heating device, a motor stator and rotor core conveyor belt is fixedly installed above the base, and a motor stator and rotor core heating device housing is fixedly installed above the base;

[0006] The stator and rotor core fixing device is arranged above the motor stator and rotor core conveyor belt, and the stator and rotor core heating device is arranged above the base.

[0007] Preferably, the stator and rotor core fixing device comprises a motor stator and rotor core clamp, and the motor stator and rotor core clamp is fixedly connected to the surface of the motor stator and rotor core conveyor belt;

[0008] The surface of the motor stator and rotor core clamp is provided with a groove, the motor stator and rotor core clamp is internally rotatably connected with a bidirectional threaded rod, both ends of the bidirectional threaded rod are fixedly connected with an adjustment handle, and the surface of the bidirectional threaded rod is symmetrically threaded with two motor stator and rotor core clamps;

[0009] The lower ends of the two motor stator and rotor core clamps are fixedly connected with clamp connecting plates, and the two motor stator and rotor core clamps and the two clamp connecting plates are slidably connected with the grooves.

[0010] Preferably, there are two motor stator and rotor core conveyor belts, which are symmetrically installed at the upper end of the base;

[0011] There are multiple stator and rotor core fixing devices, which are distributed in an array on the surfaces of the two motor stator and rotor core conveyor belts.

[0012] Preferably, the stator and rotor core heating device comprises a drive motor fixing plate, and the drive motor fixing plate is fixedly connected to the inside of the housing of the motor stator and rotor core heating device;

[0013] Among them, the upper end of the driving motor fixing plate is fixedly connected with the driving motor, the output end of the driving motor is fixedly connected with the threaded rod, the upper end of the motor stator and rotor core heating device housing is fixedly connected with two fixing rods, and the upper ends of the two fixing rods are fixedly connected with the fixing plate;

[0014] Among them, the threaded rod is rotatably connected to the motor stator and rotor core heating equipment shell and the fixed plate respectively, the surface of the threaded rod is threadedly sleeved with a movable plate, the movable plate is slidably connected to the two fixed rods, and the two ends of the movable plate are fixedly connected with induction coils respectively.

[0015] Preferably, the two induction coils are both arranged at an angle.

[0016] Preferably, an industrial frequency induction heater is fixedly installed inside the housing of the motor stator and rotor core heating device, and both induction coils are electrically connected to the industrial frequency induction heater.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows: the heating device for the stator and rotor core of the motor reciprocates the stator and rotor by reciprocating the up and down movement of the induction coil, which is convenient for uniform heating of the stator and rotor. The induction coil is tilted and fixed on the surface of the movable plate, which can optimize the distribution of the magnetic field on the stator and rotor, thereby achieving a more uniform or more concentrated heating effect, so that the magnetic field acts more evenly on the surface of the stator and rotor, improves the energy utilization efficiency of the device, reduces energy consumption, and thus improves the uniformity of heating. The heating device for the stator and rotor core of the motor adjusts the distance between the two motor stator and rotor core clamps to facilitate the limiting of the stator or rotor, improve the practicality of the motor stator and rotor core clamp, improve the convenience of the motor stator and rotor core clamp, and improve the positioning accuracy of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0019] Figure 1 This is a schematic diagram of the structure of a heating device for a motor stator and rotor core according to the utility model;

[0020] Figure 2 This is a schematic diagram of the stator and rotor core conveyor belt of the utility model motor;

[0021] Figure 3 This is a schematic diagram of the induction coil of the utility model;

[0022] Figure 4 It is a schematic diagram of the stator and rotor core clamping plate of the motor of the utility model.

[0023] Figure numerals: 1. base; 2. motor stator and rotor core conveyor belt; 3. motor stator and rotor core heating equipment housing; 4. motor stator and rotor core clamp; 5. motor stator and rotor core clamp; 6. bidirectional threaded rod; 7. adjustment handle; 8. clamp connecting plate; 9. groove; 10. industrial frequency induction heater; 11. fixing rod; 12. threaded rod; 13. fixing plate; 14. movable plate; 15. induction coil; 16. drive motor fixing plate; 17. drive motor. DETAILED DESCRIPTION

[0024] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0025] In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the description of the orientation, such as up, down, front, back, left, right, etc., are based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In the description of the present utility model, greater than, less than, exceeding, etc. are understood to exclude the number, and above, below, within, etc. are understood to include the number. If there is a description of the first and the second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features. In the description of the present utility model, unless otherwise clearly defined, the terms such as setting, installing, connecting, etc. should be understood in a broad sense, and the technicians in the relevant technical field can reasonably determine the specific meaning of the above terms in the present utility model in combination with the specific content of the technical solution.

[0026] See also Figure 1-4 The utility model provides a technical solution: a heating device for a motor stator and rotor core, comprising a base 1, a stator and rotor core fixing device, and a stator and rotor core heating device. A motor stator and rotor core conveyor belt 2 is fixedly installed above the base 1, and a motor stator and rotor core heating device housing 3 is fixedly installed above the base 1;

[0027] The stator and rotor core fixing device is arranged above the motor stator and rotor core conveyor belt 2 , and the stator and rotor core heating device is arranged above the base 1 (on the side of the motor stator and rotor core conveyor belt 2 ).

[0028] The stator and rotor core fixing device includes a motor stator and rotor core clamp 4, which is fixedly connected to the surface of the motor stator and rotor core conveyor belt 2. A groove 9 is opened on the surface of the motor stator and rotor core clamp 4. The motor stator and rotor core clamp 4 is internally rotatably connected with a bidirectional threaded rod 6. Both ends of the bidirectional threaded rod 6 are fixedly connected with an adjustment handle 7. The surface of the bidirectional threaded rod 6 is symmetrically threaded with two motor stator and rotor core clamps 5. The lower ends of the two motor stator and rotor core clamps 5 are fixedly connected with a clamp connecting plate 8. The two motor stator and rotor core clamps 5 and the two clamp connecting plates 8 are slidably connected to the groove 9.

[0029] There are two motor stator and rotor core conveyor belts 2 symmetrically mounted on the upper ends of the base 1 , and there are multiple stator and rotor core fixing devices distributed in arrays on the surfaces of the two motor stator and rotor core conveyor belts 2 .

[0030] The stator and rotor core heating device includes a drive motor fixing plate 16, which is fixedly connected to the inside of the motor stator and rotor core heating equipment housing 3. The upper end of the drive motor fixing plate 16 is fixedly connected to a drive motor 17, and the output end of the drive motor 17 is fixedly connected to a threaded rod 12. The upper end of the motor stator and rotor core heating equipment housing 3 is fixedly connected to two fixing rods 11, and the upper ends of the two fixing rods 11 are fixedly connected to a fixing plate 13. The threaded rod 12 is rotatably connected to the motor stator and rotor core heating equipment housing 3 and the fixing plate 13 respectively. A movable plate 14 is threadedly sleeved on the surface of the threaded rod 12, and the movable plate 14 is slidably connected to the two fixed rods 11. The two ends of the movable plate 14 are respectively fixedly connected to induction coils 15, and the two induction coils 15 are both inclined.

[0031] An industrial frequency induction heater 10 is fixedly installed inside the housing 3 of the motor stator and rotor core heating device, and both of the two induction coils 15 are electrically connected to the industrial frequency induction heater 10 .

[0032] When using the heating equipment, first rotate the adjustment handle 7 according to the specifications of the stator and the rotor, the adjustment handle 7 drives the bidirectional threaded rod 6 to rotate, the bidirectional threaded rod 6 drives the motor stator and rotor core clamping plate 5 and the clamping plate connecting plate 8 to slide inside the groove 9, adjust the distance between the two motor stator and rotor core clamping plates 5, make the stator sleeve on the outer surface of the motor stator and rotor core clamping plate 5, make the rotor fixed on the opposite surfaces of the two motor stator and rotor core clamping plates 5, which is convenient for limiting the stator or rotor, and start the motor stator and rotor core conveyor belt 2 to convey the motor stator and rotor, which is convenient for heating the stator or rotor.

[0033] When the stator or rotor moves to the bottom of the corresponding induction coil 15, the drive motor 17 is started to drive the threaded rod 12 to rotate reciprocally, and the threaded rod 12 drives the movable plate 14 to slide on the surface of the fixed rod 11. The movable plate 14 drives the two induction coils 15 to move reciprocally, which is convenient for uniform heating of the stator or rotor. The industrial frequency induction heater 10 is started to heat the stator or rotor through the induction coil 15. Since the two induction coils 15 are tilted and fixed on the movable plate 14, the induction coil 15 has an inclination angle with the horizontal plane, which can optimize the distribution of the magnetic field on the workpiece, thereby achieving a more uniform or more concentrated heating effect, so that the magnetic field acts more evenly on the surface of the workpiece, thereby improving the uniformity of heating.

[0034] Furthermore, the stator and rotor are heated reciprocatingly by the up and down reciprocating movement of the induction coil 15, which facilitates uniform heating of the stator and rotor. The induction coil 15 is tilted and fixed on the surface of the movable plate 14, which can optimize the distribution of the magnetic field on the stator and rotor, thereby achieving a more uniform or more concentrated heating effect, making the magnetic field act more evenly on the surface of the stator and rotor, improving the energy utilization efficiency of the equipment, reducing energy consumption, and thus improving the uniformity of heating.

[0035] By adjusting the distance between the two motor stator and rotor core clamps 5, it is convenient to limit the stator or rotor, improve the practicality of the motor stator and rotor core clamp 4, improve the convenience of the motor stator and rotor core clamp 4, and improve the positioning accuracy of the equipment.

[0036] Working principle: When using the heating equipment, first turn the adjustment handle 7 according to the specifications of the stator and rotor. The adjustment handle 7 drives the bidirectional threaded rod 6 to rotate. The bidirectional threaded rod 6 drives the motor stator and rotor core clamping plate 5 and the clamping plate connecting plate 8 to slide inside the groove 9. The distance between the two motor stator and rotor core clamping plates 5 is adjusted so that the stator is sleeved on the outer surface of the motor stator and rotor core clamping plates 5, and the rotor is fixed on the opposite surfaces of the two motor stator and rotor core clamping plates 5, which is convenient for limiting the stator or rotor, and the motor stator and rotor core conveyor belt 2 is started to convey the motor stator and rotor, which is convenient for heating the stator or rotor.

[0037] When the stator or rotor moves to the bottom of the corresponding induction coil 15, the drive motor 17 is started to drive the threaded rod 12 to rotate reciprocally, and the threaded rod 12 drives the movable plate 14 to slide on the surface of the fixed rod 11. The movable plate 14 drives the two induction coils 15 to move reciprocally, which is convenient for uniform heating of the stator or rotor. The industrial frequency induction heater 10 is started to heat the stator or rotor through the induction coil 15. Since the two induction coils 15 are tilted and fixed on the movable plate 14, the induction coil 15 has an inclination angle with the horizontal plane, which can optimize the distribution of the magnetic field on the workpiece, thereby achieving a more uniform or more concentrated heating effect, so that the magnetic field acts more evenly on the surface of the workpiece, thereby improving the uniformity of heating.

[0038] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A heating device for a motor stator and rotor core, characterized in that: It comprises a base (1), a stator and rotor core fixing device, and a stator and rotor core heating device, wherein a motor stator and rotor core conveyor belt (2) is fixedly installed above the base (1), and a motor stator and rotor core heating device housing (3) is fixedly installed above the base (1); The stator and rotor core fixing device is arranged above the motor stator and rotor core conveyor belt (2), and the stator and rotor core heating device is arranged above the base (1).

2. A heating device for a motor stator and rotor core according to claim 1, characterized in that: The stator and rotor core fixing device comprises a motor stator and rotor core clamp (4), and the motor stator and rotor core clamp (4) is fixedly connected to the surface of the motor stator and rotor core conveyor belt (2); The surface of the motor stator and rotor core clamp (4) is provided with a groove (9), the motor stator and rotor core clamp (4) is internally rotatably connected with a bidirectional threaded rod (6), both ends of the bidirectional threaded rod (6) are fixedly connected with an adjustment handle (7), and the surface of the bidirectional threaded rod (6) is symmetrically threadedly sleeved with two motor stator and rotor core clamps (5); The lower ends of the two motor stator and rotor core clamps (5) are fixedly connected to clamp connection plates (8), and the two motor stator and rotor core clamps (5) and the two clamp connection plates (8) are slidably connected to the grooves (9).

3. A heating device for a motor stator and rotor core according to claim 2, characterized in that: There are two motor stator and rotor iron core conveyor belts (2), which are symmetrically mounted on the upper ends of the base (1); There are a plurality of stator and rotor core fixing devices, which are respectively distributed in an array on the surfaces of the two motor stator and rotor core conveyor belts (2).

4. The heating device for motor stator and rotor core according to claim 1, characterized in that: The stator and rotor core heating device comprises a drive motor fixing plate (16), the drive motor fixing plate (16) being fixedly connected to the inside of a motor stator and rotor core heating device housing (3); The upper end of the drive motor fixing plate (16) is fixedly connected to the drive motor (17), the output end of the drive motor (17) is fixedly connected to the threaded rod (12), the upper end of the motor stator and rotor core heating device housing (3) is fixedly connected to two fixing rods (11), and the upper ends of the two fixing rods (11) are fixedly connected to the fixing plate (13); The threaded rod (12) is rotatably connected to the motor stator and rotor core heating device housing (3) and the fixed plate (13), respectively; a movable plate (14) is threadedly sleeved on the surface of the threaded rod (12); the movable plate (14) is slidably connected to the two fixed rods (11); and the two ends of the movable plate (14) are fixedly connected to the induction coil (15).

5. A heating device for a motor stator and rotor core according to claim 4, characterized in that: The two induction coils (15) are both arranged at an angle.

6. A heating device for a motor stator and rotor core according to claim 4, characterized in that: An industrial frequency induction heater (10) is fixedly installed inside the housing (3) of the motor stator and rotor core heating device, and both induction coils (15) are electrically connected to the industrial frequency induction heater (10).

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