CN218633630U

CN218633630U - Stator core knocking device capable of reducing eddy current loss

Info

Publication number: CN218633630U
Application number: CN202222306937.4U
Authority: CN
Inventors: 林彩萍; 金显国; 朱敏强; 葛献军; 蒋利锋
Original assignee: Zhejiang Chuangxing Intelligent Motor Co ltd
Current assignee: Zhejiang Chuangxing Intelligent Motor Co ltd
Priority date: 2022-08-31
Filing date: 2022-08-31
Publication date: 2023-03-14
Anticipated expiration: 2032-08-31

Abstract

The utility model belongs to motor accessories makes the field, concretely relates to can reduce stator core knocking device of eddy current loss, including iron core positioning mechanism and iron core knocking mechanism, iron core positioning mechanism is used for fixing a position stator core to can drive stator core rotatory and lift, iron core knocking mechanism is used for knocking the stator core side. The utility model discloses use iron core knocking mechanism to strike stator core side, make adhesion position scatter between piece and piece, reduced eddy current loss, effectively promoted motor efficiency. And simultaneously, the utility model discloses also guarantee the state that compresses tightly of iron core, stator core height does not have the change.

Description

Stator core knocking device capable of reducing eddy current loss

Technical Field

The utility model belongs to motor accessories makes the field, concretely relates to can reduce eddy current loss's stator core knocking device.

Background

In the production of motors, motor iron cores are generally made of 0.5mm silicon steel sheets. When the motor works, alternating current exists in the coil to generate alternating magnetic flux. This changing magnetic flux generates an induced current in the core. The induced current generated in the core flows around in a plane perpendicular to the direction of the magnetic flux, and is called eddy current. The eddy current loss causes the core to heat, thereby causing power loss, thereby reducing motor efficiency. In order to reduce eddy current losses, the core is laminated with silicon steel sheets insulated from each other, so that eddy currents pass through a smaller cross section in a long and narrow circuit to increase the resistance on the eddy current path. In practical production, after the iron core is subjected to a compression and annealing process, the iron core pieces and the sheets are adhered. Thereby causing an increase in eddy current loss and a decrease in motor efficiency.

SUMMERY OF THE UTILITY MODEL

In order to compensate for the deficiencies of the prior art, the utility model provides a can reduce eddy current loss's stator core knocking device technical scheme.

The utility model provides a can reduce eddy current loss's stator core knocking device, includes iron core positioning mechanism and iron core knocking mechanism, iron core positioning mechanism is used for fixing a position stator core to can drive stator core rotatory and lift, iron core knocking mechanism is used for knocking the stator core side.

Further, iron core positioning mechanism includes electromagnetism absorption stick, rotation driving subassembly and lift drive assembly, the electromagnetism adsorbs the stick and is used for stretching into stator core and inhales stator core, rotation driving subassembly is used for driving the electromagnetism and adsorbs the stick rotatory, lift drive assembly is used for driving the electromagnetism and adsorbs the stick and goes up and down.

Further, the lifting driving assembly comprises a lifting sliding table, a sliding block of the lifting sliding table is fixedly connected with a lifting seat, and the rotary driving assembly and the electromagnetic adsorption rod are arranged on the lifting seat.

Further, the rotation driving assembly comprises a first motor and a first transmission mechanism, the first motor is in transmission fit with the first transmission mechanism, and the first transmission mechanism is in transmission fit with the electromagnetic adsorption rod and drives the electromagnetic adsorption rod to rotate.

Further, the first transmission mechanism is a first belt pulley mechanism.

Furthermore, the iron core knocking mechanism comprises a hammer and a hammer driving assembly, the hammer is used for knocking the side face of the stator iron core, and the hammer driving assembly is used for driving the hammer to move.

Further, the hammer driving assembly comprises a second motor and a second transmission mechanism, the second motor is in transmission fit with the second transmission mechanism, and the second transmission mechanism is in transmission fit with the hammer and drives the hammer to rotate.

Furthermore, the iron core knocking mechanisms are at least two groups and knock the stator iron core in multiple directions.

Further, still include transport mechanism, transport mechanism is used for placing stator core and conveying stator core, the electromagnetism adsorbs the stick to be located transport mechanism upper end.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses use iron core knocking mechanism to strike stator core side, make adhesion position scatter between piece and piece, reduced eddy current loss, effectively promoted motor efficiency. And simultaneously, the utility model discloses also guarantee the state that compresses tightly of iron core, stator core height does not have the change.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a second schematic structural diagram of the present invention;

fig. 3 is a schematic structural view of an iron core knocking mechanism according to a first embodiment of the present invention;

fig. 4 is a schematic structural view of an iron core knocking mechanism according to a second embodiment of the present invention.

Detailed Description

In the description of the present invention, it is to be understood that the terms "one end", "the other end", "the outside", "upper", "inside", "horizontal", "coaxial", "central", "end", "length", "outer end", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The present invention will be further explained with reference to the accompanying drawings.

Referring to fig. 1-4, a stator core knocking device capable of reducing eddy current loss includes a core positioning mechanism 1 and a core knocking mechanism 2, wherein the core positioning mechanism 1 is used for positioning a stator core 4 and driving the stator core 4 to rotate and lift, and the core knocking mechanism 2 is used for knocking a side surface of the stator core 4.

It can be understood, in above-mentioned technical scheme, the utility model discloses use iron core knocking mechanism 2 to strike 4 sides of stator core, make adhesion position scatter between piece and piece. Meanwhile, the compression state of the iron core is also ensured, and the height of the stator iron core 4 is unchanged. Experiments prove that the eddy current loss is reduced by knocking, the motor efficiency is effectively improved, and the motor efficiency can be improved by 0.3% -0.5%.

With reference to fig. 1 and fig. 2, the iron core positioning mechanism 1 includes an electromagnetic adsorption rod 100, a rotation driving component and a lifting driving component, the electromagnetic adsorption rod 100 is a rod-shaped electromagnet and is used for extending into the stator core 4 and adsorbing the stator core 4, the rotation driving component is used for driving the electromagnetic adsorption rod 100 to rotate, and the lifting driving component is used for driving the electromagnetic adsorption rod 100 to lift.

The lifting driving assembly comprises a lifting sliding table 101, the lifting sliding table 101 is a known technology and can be an electric sliding table, a pneumatic sliding table or a hydraulic sliding table, a sliding block 1010 of the lifting sliding table 101 is fixedly connected with a lifting base 102, and the rotary driving assembly and the electromagnetic adsorption rod 100 are arranged on the lifting base 102.

Wherein, the electromagnetism adsorbs stick 100 and rotates through the bearing and installs on lift seat 102, and the rotation driving subassembly includes first motor 103 and first drive mechanism, first motor 103 and first drive mechanism transmission cooperation, and first drive mechanism adsorbs stick 100 transmission cooperation and drives the electromagnetism and adsorbs stick 100 rotation with the electromagnetism.

Specifically, the first transmission mechanism is a first belt pulley mechanism 104, a driving wheel of the first belt pulley mechanism 104 is sleeved on an output shaft of the first motor 103, a driven wheel is sleeved on the upper end of the electromagnetic adsorption rod 100, and the driving wheel and the driven wheel are in belt transmission.

When the rotation driving assembly works, the first motor 103 drives the first belt pulley mechanism 104 to work, and the first belt pulley mechanism 104 drives the electromagnetic absorption bar 100 to rotate.

Further, the iron core knocking mechanisms 2 are provided with a left group and a right group, and knock the left side and the right side of the stator iron core 4 respectively. The iron core knocking mechanism 2 comprises a hammer 200 and a hammer driving assembly, the hammer 200 is of a plastic structure and is used for knocking the side face of the stator iron core 4, and the hammer driving assembly is used for driving the hammer 200 to move.

The iron core knocking mechanism 2 of the present invention has various embodiments, two of which are listed below.

The first embodiment: as shown in fig. 3, the hammer driving assembly includes a second motor 201 and a second transmission mechanism, the second transmission mechanism is a second belt pulley mechanism 202, a driving wheel of the second belt pulley mechanism 202 is sleeved on an output shaft of the second motor 201, a driven wheel is sleeved on a short shaft at the lower end of the hammer 200, a belt is connected between the driving wheel and the driven wheel, the second motor 201 drives the second belt pulley mechanism 202 to work through forward and reverse rotation, and the second belt pulley mechanism 202 drives the hammer 200 to swing to and fro to knock the stator core 4.

The second embodiment: as shown in fig. 4, the hammer driving assembly includes a third motor, an eccentric 205, an elastic band 204, and a stop rod 203, the lower end of the hammer 200 is rotatably disposed, the elastic band 204 is connected between the hammer 200 and the stop rod 203, the elastic band 204 pulls the hammer 200 toward the side of the stop rod 203, the third motor drives the eccentric 205 to rotate, the eccentric 205 can drive the hammer 200 to move outward when the side farther from the wheel center abuts against the hammer 200, and after the side farther from the wheel center of the eccentric 205 is away from the hammer 200, the hammer 200 is quickly reset under the driving of the elastic band 204, so as to achieve the knocking effect.

In addition, the iron core knocking mechanism 2 can also be designed to directly drive the hammer 200 to move through the air cylinder or the oil cylinder, and the stator iron core 4 is knocked through the movement.

Furthermore, the utility model discloses can also add transport mechanism 3, transport mechanism 3 is the conveyer belt, and the higher authority is placed tray 300, places stator core 4 on the tray 200, and transport mechanism 3 conveys stator core 4, and electromagnetism adsorbs stick 100 to be located transport mechanism 3 upper ends. Iron core positioning mechanism 1 erects in transport mechanism 3's frame, and two iron core striking mechanism 2 are installed respectively in the left and right sides of transport mechanism 3 frames.

The utility model discloses a working process: the conveying mechanism 3 conveys the stator iron cores 4 to the position below the electromagnetic adsorption rod 100 one by one, whether the stator iron cores 4 are in place or not can be detected through an infrared probe, then the lifting driving assembly drives the electromagnetic adsorption rod 100 to move downwards and extend into the cavity of the stator iron cores 4, the electromagnetic adsorption rod 100 is electrified and adsorbs the stator iron cores 4, then the lifting driving assembly drives the electromagnetic adsorption rod 100 and the stator iron cores 4 to move upwards to a position corresponding to the hammer 200, then the hammer driving assembly drives the hammer 200 to knock the stator iron cores 4, meanwhile, the lifting driving assembly drives the electromagnetic adsorption rod 100 and the stator iron cores 4 to move downwards gradually, and the rotary driving assembly drives the electromagnetic adsorption rod 100 and the stator iron cores 4 to rotate gradually, so that the stator iron cores 4 can be knocked in all directions.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The utility model provides a can reduce eddy current loss's stator core knocking device, its characterized in that includes iron core positioning mechanism (1) and iron core knocking mechanism (2), iron core positioning mechanism (1) is used for fixing a position stator core (4) to can drive stator core (4) rotatory and lift, iron core knocking mechanism (2) are used for knocking stator core (4) side.

2. The stator core knocking device capable of reducing eddy current loss according to claim 1, wherein the core positioning mechanism (1) comprises an electromagnetic adsorption rod (100), a rotation driving component and a lifting driving component, the electromagnetic adsorption rod (100) is used for extending into the stator core (4) and adsorbing the stator core (4), the rotation driving component is used for driving the electromagnetic adsorption rod (100) to rotate, and the lifting driving component is used for driving the electromagnetic adsorption rod (100) to lift.

3. The stator core knocking device capable of reducing eddy current loss according to claim 2, wherein the lifting driving assembly comprises a lifting sliding table (101), a sliding block (1010) of the lifting sliding table (101) is fixedly connected with a lifting base (102), and the rotary driving assembly and the electromagnetic adsorption rod (100) are arranged on the lifting base (102).

4. The stator core knocking device capable of reducing eddy current loss according to claim 3, wherein the rotary driving assembly comprises a first motor (103) and a first transmission mechanism, the first motor (103) is in transmission fit with the first transmission mechanism, and the first transmission mechanism is in transmission fit with the electromagnetic adsorption rod (100) and drives the electromagnetic adsorption rod (100) to rotate.

5. The stator core rapping device capable of reducing eddy current losses as recited in claim 4, wherein said first transmission mechanism is a first belt pulley mechanism (104).

6. The stator core knocking device capable of reducing eddy current loss according to claim 1, wherein the core knocking mechanism (2) comprises a hammer (200) and a hammer driving assembly, the hammer (200) is used for knocking the side surface of the stator core (4), and the hammer driving assembly is used for driving the hammer (200) to move.

7. The stator core knocking device capable of reducing the eddy current loss according to claim 6, wherein the hammer driving assembly comprises a second motor (201) and a second transmission mechanism, the second motor (201) is in transmission fit with the second transmission mechanism, and the second transmission mechanism is in transmission fit with the hammer (200) and drives the hammer (200) to rotate.

8. The stator core knocking device capable of reducing eddy current loss according to claim 1, wherein the core knocking mechanisms (2) are provided with at least two groups, and knock the stator core (4) in multiple directions.

9. The stator core knocking device capable of reducing the eddy current loss according to claim 2, further comprising a conveying mechanism (3), wherein the conveying mechanism (3) is used for placing the stator core (4) and conveying the stator core (4), and the electromagnetic adsorption rod (100) is positioned at the upper end of the conveying mechanism (3).