CN114280510A - Device and method for self-adaptively detecting giant stator core by using EL CID (electro-luminescence) detection trolley - Google Patents
Device and method for self-adaptively detecting giant stator core by using EL CID (electro-luminescence) detection trolley Download PDFInfo
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- CN114280510A CN114280510A CN202111663912.3A CN202111663912A CN114280510A CN 114280510 A CN114280510 A CN 114280510A CN 202111663912 A CN202111663912 A CN 202111663912A CN 114280510 A CN114280510 A CN 114280510A
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- 238000001514 detection method Methods 0.000 title claims abstract description 219
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000005401 electroluminescence Methods 0.000 title description 2
- 230000007246 mechanism Effects 0.000 claims abstract description 121
- 238000005096 rolling process Methods 0.000 claims abstract description 19
- 230000008569 process Effects 0.000 claims abstract description 10
- 239000000725 suspension Substances 0.000 claims description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 11
- 230000008859 change Effects 0.000 description 3
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- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
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Abstract
A device and a method for detecting a giant stator core by an EL CID detection trolley in a self-adaptive manner comprise a detection mechanism, a carrying mechanism and a limiting mechanism, wherein the detection mechanism and the limiting mechanism are connected with the carrying mechanism, a screw rod of the detection mechanism and a limiting roller of the limiting mechanism are respectively positioned at two sides of the carrying mechanism and are vertically parallel to each other, the detection trolley is matched with the screw rod, a driving wheel of the carrying mechanism is in rolling contact with the upper end surface of the stator core, wheels and the limiting roller of the detection trolley are respectively in contact with the inner wall and the outer wall of the stator core to limit the movement track of the driving wheel, so that the carrying mechanism drives the detection mechanism to circularly move along the inner wall of the stator core, the detection trolley moves upwards or downwards along the screw rod to detect the stator core every time when moving one detection position, until the carrying mechanism circularly moves around the stator core for one circle, the automatic operation is finished at one-time detection, and the labor intensity is low in the detection process, high efficiency, no missing detection, and simple and convenient operation.
Description
Technical Field
The invention belongs to the technical field of giant generator stator core detection, and relates to a device and a method for self-adaptively detecting a giant stator core by using an EL CID detection trolley.
Background
After a set period of operation of a stator core of the giant hydroelectric generating set, maintenance and overhaul are needed, the height from a generator set overhaul platform to the top of the core is 3-4 m, the EL CID detection trolley is used as a tool for low magnetic flux detection of the stator core, the EL CID detection trolley is also called a detection trolley, the structure of the EL CID detection trolley mainly comprises a trolley body, wheels and instruments and equipment which are positioned in the trolley body and used for detecting the stator core, when detection is performed, a detector holds the EL CID detection trolley to push the EL CID detection trolley from the bottom of the core to the top, the wheels are enabled to be in contact with the inner wall of the stator core for detection, labor intensity is high, detection workload is large, efficiency is low, and missing detection is easy to occur.
Disclosure of Invention
The invention aims to solve the technical problem of providing a device and a method for detecting a giant stator core by an EL CID detection trolley in a self-adaptive manner, wherein a detection mechanism and a limiting mechanism are connected with a carrying mechanism, a screw rod of the detection mechanism and a limiting roller of the limiting mechanism are respectively positioned at two sides of the carrying mechanism and are vertically parallel to each other, a detection vehicle is matched with the screw rod, a driving wheel of the carrying mechanism is in rolling contact with the upper end surface of the stator core, wheels and the limiting rollers of the detection vehicle are respectively in contact with the inner wall and the outer wall of the stator core to limit the movement track of the driving wheel, so that the carrying mechanism drives the detection mechanism to move annularly along the inner wall of the stator core, the detection vehicle moves upwards or downwards along the screw rod to detect the stator core when moving one detection position every time, the carrying mechanism finishes the annular movement around the stator core for one circle, the automatic operation is finished at one time, the labor intensity is low, the efficiency is high in the detection process, the missing detection can not occur, and the operation is simple and convenient.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a device for self-adaptively detecting a giant stator core by an EL CID detection trolley comprises a detection mechanism, a carrying mechanism and a limiting mechanism; the detection vehicle of the detection mechanism and the driving wheel of the carrying mechanism are respectively positioned on two different vertical crossed axes, the detection mechanism is connected with a suspension plate of the carrying mechanism, the limiting mechanism is connected with the carrying mechanism, a limiting roller of the limiting mechanism is positioned on the corresponding side of the detection vehicle, and the driving wheel is positioned between the detection vehicle and the limiting roller; the detection vehicle vertically moves up and down, the driving wheel horizontally rolls in a limited annular mode, and the limiting rolling wheel radially rotates in an annular mode.
The detection mechanism comprises a lead screw which penetrates through the detection vehicle and is matched with the detection vehicle, and a detection motor which is connected with the upper end of the lead screw, wherein the detection motor is connected with a suspension plate of the carrying mechanism.
The rolling direction of the wheels of the detection vehicle is consistent with the axial direction of the screw rod; the bottom parts at the two ends of the detection vehicle are provided with an upper sensor and a lower sensor.
The carrying mechanism comprises a plurality of universal wheels connected with the lower side of the carrying bottom plate and a driving wheel arranged in the middle of the carrying bottom plate, and the carrying motor is connected with the driving wheel.
One side of the carrying bottom plate is provided with a suspension plate which is a flat plate, and the length of the suspension plate exceeds the thickness of the detection vehicle.
The limiting mechanism comprises a rolling shaft connected with one end of the supporting plate and a limiting roller in rolling fit with the rolling shaft, and the other end of the supporting plate is connected with a carrying bottom plate of the carrying mechanism.
The limiting roller is hung on one side of the carrying mechanism and is parallel to the screw rod of the detection mechanism.
The detection motor of the detection mechanism is a servo motor, and the carrying motor of the carrying mechanism is a stepping motor.
The controller is electrically connected with the upper sensor, the lower sensor, the detection motor and the carrying motor; the controller controls the detection motor and the carrying motor to move, and controls the detection motor to rotate clockwise or reversely according to signals sensed by the upper sensor or the lower sensor.
The detection method for the self-adaptive detection of the giant stator core by the EL CID detection trolley comprises the following steps:
s1, mounting, namely placing the carrying mechanism on the upper side face of the stator iron core, and positioning a detection vehicle of the detection mechanism in the stator iron core; in the step, a universal wheel and a driving wheel are in contact with the upper side surface of a stator core, the wheel is close to the inner wall of the stator core, and a limiting roller is in contact with the outer wall of the stator core; detecting that the vehicle is in a starting state;
s2, carrying, wherein the controller sends an instruction to a carrying motor, the carrying motor rotates by a stepping angle according to a preset program, the carrying mechanism is limited by wheels and a limiting roller at the same time, and the detecting mechanism is driven to move to the next detecting position during movement; in the step, the distance between every two detection positions is the width of the detection vehicle;
s3, detecting, wherein the controller sends an instruction to a detection motor, the detection motor drives a screw rod to rotate to drive a detection vehicle to move vertically downwards, and the detection vehicle detects along the vertical direction of the inner wall of the stator core; in the step, in the process that the detection vehicle vertically moves downwards to detect the inner wall of the iron core, the wheels are limited to be in rolling contact with the inner wall of the stator iron core;
s4, detecting and controlling, wherein after the lower sensor exceeds the lower end of the stator core, the signal sensed by the lower sensor changes and is sent to the controller, and the controller sends an instruction to control the detection motor to stop; in the step, detecting the clockwise rotation of the motor;
s5, reversing detection is carried out, the S2 is repeated, the detection vehicle moves to the next detection position again, the controller sends an instruction to the detection motor, the detection motor reverses and drives the screw rod to rotate reversely, and the detection vehicle moves vertically upwards to detect the inner wall of the iron core; in the step, after the upper sensor exceeds the upper end of the stator core, a signal sensed by the upper sensor changes and is sent to the controller, and the controller sends an instruction to control the detection motor to stop;
and S6, repeating S2-S5 in sequence until the carrying mechanism finishes moving along the stator core in a circle.
The invention has the main beneficial effects that:
the detection mechanism and the limiting mechanism are positioned on two sides of the carrying mechanism, and a lead screw of the detection mechanism and a limiting roller of the limiting mechanism are respectively positioned on two sides of the carrying mechanism and are vertically parallel to each other.
The carrying mechanism is limited by the wheels and the limiting rollers in the moving process and moves circularly along the upper end surface of the stator core, and the detection mechanism and the limiting mechanism move synchronously along with the detection mechanism and the limiting mechanism.
And when the carrying mechanism moves by one stepping angle every time, the detection vehicle moves by one detection position, and the width of each detection position is the same as that of the detection vehicle.
On every detection position, detect the car and upwards or the detection of downward motion, carry the mechanism and move a week back along stator core, detect the detection that the car accomplished whole stator core, can not omit.
The detection motor drives the screw rod to rotate clockwise or reversely, so that the detection vehicle is driven to move upwards or downwards under the condition that the wheels are in contact with the inner wall of the stator core.
The starting and stopping of the motor are detected according to signals sensed by the upper sensor and the lower sensor, the sensed signals are relatively stable in the detection process of the upper sensor and the lower sensor, after the upper sensor and the lower sensor exceed the upper end and the lower end of the stator core, the sensed signals change, and the controller controls the starting and stopping of the motor to be detected through the change.
Drawings
The invention is further illustrated by the following figures and examples.
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a front view of fig. 1.
Fig. 3 is a right-side view of fig. 2.
Fig. 4 is a schematic top view of fig. 2.
Fig. 5 is a schematic structural view of the connection between the carrying mechanism and the limiting mechanism of the present invention.
Fig. 6 is a front view of fig. 5.
Fig. 7 is a side view of fig. 6.
Fig. 8 is a state diagram of the stator core inspection of the present invention.
In the figure: the device comprises a detection mechanism 1, a detection vehicle 11, a screw rod 12, a detection motor 13, wheels 14, an upper sensor 15, a lower sensor 16, a carrying mechanism 2, a carrying bottom plate 21, a universal wheel 22, a driving wheel 23, a carrying motor 24, a suspension plate 25, a limiting mechanism 3, a support plate 31, a rolling shaft 32 and a limiting roller 33.
Detailed Description
As shown in fig. 1-8, an apparatus for adaptively detecting a giant stator core by an EL CID detection trolley comprises a detection mechanism 1, a carrying mechanism 2 and a limiting mechanism 3; the detection vehicle 11 of the detection mechanism 1 and the driving wheel 23 of the carrying mechanism 2 are respectively positioned on two different vertical crossed axes, the detection mechanism 1 is connected with the suspension plate 25 of the carrying mechanism 2, the limiting mechanism 3 is connected with the carrying mechanism 2, the limiting roller 33 of the limiting mechanism 3 is positioned on the corresponding side of the detection vehicle 11, and the driving wheel 23 is positioned between the detection vehicle 11 and the limiting roller 33; the detection vehicle 11 moves vertically up and down, the driving wheel 23 rolls horizontally in a limited annular mode, and the limiting roller 33 rotates radially in an annular mode. When the device is used, the driving wheel 23 is in rolling contact with the upper end face of the stator core, the wheel 14 and the limiting roller 33 are in contact with the inner wall and the outer wall of the stator core respectively to limit the movement track of the driving wheel 23, the carrying mechanism 2 drives the detection mechanism 1 to move annularly along the inner wall of the stator core, each time the detection position is moved, the detection vehicle 11 moves upwards or downwards along the lead screw 12 to detect the stator core until the carrying mechanism 2 finishes one-circle movement around the stator core, the automatic operation is finished at one time, the labor intensity is low in the detection process, the efficiency is high, the omission phenomenon cannot occur, and the operation is simple and convenient.
In a preferred scheme, the detection mechanism 1 comprises a screw rod 12 which penetrates through the detection vehicle 11 to be matched with the detection vehicle, and a detection motor 13 which is connected with the upper end of the screw rod 12, wherein the detection motor 13 is connected with a suspension plate 25 of the carrying mechanism 2. When the motor is installed, the screw rod 12 extends into the stator core from the upper end surface of the stator core, and when the motor is used, the detection motor 13 drives the screw rod 12 to rotate.
Preferably, the detection motor 13 can be either forward or reverse.
In a preferable scheme, the rolling direction of the wheels 14 of the detection vehicle 11 is consistent with the axial direction of the screw rod 12; the upper sensor 15 and the lower sensor 16 are provided at the bottom of both ends of the inspection vehicle 11. When the detection vehicle 11 is installed, the wheels 14 of the detection vehicle 11 are not contacted with the inner wall of the stator core, and only when the screw rod 12 rotates, the detection vehicle 11 deflects slightly to enable the wheels 14 on one side to be contacted with the inner wall of the stator core, so that the detection vehicle 11 is limited to move along the direction of the screw rod 12.
Preferably, during the detection process, the detection vehicle 11 is in a normally open state.
Preferably, the upper sensor 15 and the lower sensor 16 are both distance sensors, and the sensed signals change when the upper sensor 15 and the lower sensor 16 cross the upper end and the lower end of the stator core.
In a preferred embodiment, the carrying mechanism 2 includes a plurality of universal wheels 22 connected to the lower side of the carrying bottom plate 21, and a driving wheel 23 disposed at the middle of the carrying bottom plate 21, and a carrying motor 24 is connected to the driving wheel 23. When in use, the carrying motor 24 drives the driving wheel 23 to move along the upper end surface of the stator core when in work, and meanwhile, the universal wheel 22 moves synchronously along with the driving wheel and adjusts the angle in a self-adaptive mode.
In a preferred embodiment, a suspension plate 25 is disposed on one side of the carrying bottom plate 21, and the suspension plate 25 is a flat plate having a length exceeding the thickness of the inspection vehicle 11. When the device is used, the suspension plate 25 on one side of the carrying bottom plate 21 extends into the upper part of the inner cavity of the stator core, so that the screw rod 12 and the detection vehicle 11 connected with the screw rod can be positioned in the inner cavity of the stator core.
In a preferred embodiment, the limiting mechanism 3 includes a roller 32 connected to one end of the supporting plate 31, and a limiting roller 33 in rolling fit with the roller 32, and the other end of the supporting plate 31 is connected to the carrying bottom plate 21 of the carrying mechanism 2. When the limiting mechanism is used, the limiting mechanism 3 moves synchronously along with the carrying mechanism 2, and the limiting roller 33 is in rolling contact with the outer wall of the stator core and used for limiting the track of the carrying mechanism 2.
In a preferred scheme, the limiting roller 33 is suspended at one side of the carrying mechanism 2 and is parallel to the screw rod 12 of the detection mechanism 1. When the limiting device is used, the limiting roller 33 is parallel to the screw rod 12, correspondingly, the limiting roller 33 rolls along the radial direction of the stator core, and the wheel 14 rolls along the axial direction of the stator core.
In a preferred embodiment, the detection motor 13 of the detection mechanism 1 is a servo motor, and the carrying motor 24 of the carrying mechanism 2 is a stepping motor. When the detection device is used, the detection motor 13 adopts a servo motor, so that the rotation of the screw rod 12 can be flexibly controlled to adapt to the long-distance movement from the top to the bottom of the stator core; the carrying motor 24 adopts a stepping motor, which is beneficial to accurately controlling the distance of the carrying mechanism 2 to move at each time, so that when the detection vehicle 11 moves to the next detection position, the detection vehicle can be accurately connected with the previous detection position, and the detection omission is avoided.
In a preferred scheme, the device further comprises a controller, wherein the controller is electrically connected with the upper sensor 15, the lower sensor 16, the detection motor 13 and the carrying motor 24; the controller controls the detection motor 13 and the carrying motor 24 to move, and also controls the detection motor 13 to rotate forwards or backwards according to signals sensed by the upper sensor 15 or the lower sensor 16. When the device is used, the controller sends an instruction to the carrying motor 24 to enable the carrying motor to work or stop working, signal changes sensed by the upper sensor 15 and the lower sensor 16 are sent to the controller, and the controller controls the starting and stopping of the detection motor 13.
In a preferred embodiment, the method for adaptively detecting the giant stator core by using the EL CID detection trolley comprises the following steps:
s1, mounting, namely placing the carrying mechanism 2 on the upper side face of the stator core, and positioning the detection vehicle 11 of the detection mechanism 1 in the stator core; in the step, the universal wheel 22 and the driving wheel 23 are contacted with the upper side surface of the stator core, the wheel 14 is close to the inner wall of the stator core, and the limiting roller 33 is contacted with the outer wall of the stator core; detecting that the vehicle 11 is in a starting state;
s2, carrying, wherein the controller sends an instruction to the carrying motor 24, the carrying motor 24 rotates by a stepping angle according to a preset program, the carrying mechanism 2 is limited by the wheels 14 and the limiting rollers 33 at the same time, and the detection mechanism 1 is driven to be transferred to the next detection position during movement; in this step, the distance between each detection position is the width of the detection vehicle 11;
s3, detecting, wherein the controller sends an instruction to the detection motor 13, the detection motor 13 drives the screw rod 12 to rotate to drive the detection vehicle 11 to move vertically downwards, and the detection vehicle 11 detects along the vertical direction of the inner wall of the stator core; in the step, in the process that the detection vehicle 11 moves vertically downwards to detect the inner wall of the iron core, the wheels 14 are limited to be in rolling contact with the inner wall of the stator iron core;
s4, detecting and controlling, wherein after the lower sensor 16 exceeds the lower end of the stator core, the signal induced by the lower sensor 16 changes and is sent to the controller, and the controller sends an instruction to control the detection motor 13 to stop; in this step, the forward rotation of the motor 13 is detected;
s5, reversing detection is carried out, the S2 is repeated, the detection vehicle 11 moves to the next detection position again, the controller sends an instruction to the detection motor 13, the detection motor 13 reverses and drives the screw rod 12 to rotate reversely, and the detection vehicle 11 moves vertically upwards to detect the inner wall of the iron core; in the step, when the upper sensor 15 exceeds the upper end of the stator core, a signal sensed by the upper sensor 15 changes and is sent to the controller, and the controller sends an instruction to control the detection motor 13 to stop;
and S6, repeating S2-S5 in sequence until the carrying mechanism 2 finishes moving along the stator core in a circle.
The method is simple and convenient to operate, can automatically complete the detection of the rectangular generator set stator core, avoids missing detection in the detection process, improves the detection efficiency, and reduces the labor intensity during detection.
The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and features in the embodiments and examples in the present application may be arbitrarily combined with each other without conflict. The protection scope of the present invention is defined by the claims, and includes equivalents of technical features of the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the invention.
Claims (10)
1. The utility model provides a device of huge stator core of EL CID detects dolly self-adaptation, characterized by: the device comprises a detection mechanism (1), a carrying mechanism (2) and a limiting mechanism (3); the detection vehicle (11) of the detection mechanism (1) and the driving wheel (23) of the carrying mechanism (2) are respectively positioned on two different vertical crossed axes, the detection mechanism (1) is connected with a suspension plate (25) of the carrying mechanism (2), the limiting mechanism (3) is connected with the carrying mechanism (2), a limiting roller (33) of the limiting mechanism (3) is positioned on the corresponding side of the detection vehicle (11), and the driving wheel (23) is positioned between the detection vehicle (11) and the limiting roller (33); the detection vehicle (11) vertically moves up and down, the driving wheel (23) horizontally rolls in a limited annular mode, and the limiting roller (33) radially rotates in an annular mode.
2. The EL CID detection trolley self-adaptive giant stator core detection device as claimed in claim 1, wherein: the detection mechanism (1) comprises a lead screw (12) which penetrates through the detection vehicle (11) and is matched with the lead screw, and a detection motor (13) which is connected with the upper end of the lead screw (12), wherein the detection motor (13) is connected with a suspension plate (25) of the carrying mechanism (2).
3. The EL CID detection trolley self-adaptive giant stator core detection device as claimed in claim 1, wherein: the rolling direction of the wheels (14) of the detection vehicle (11) is consistent with the axial direction of the screw rod (12); an upper sensor (15) and a lower sensor (16) are arranged at the bottoms of the two ends of the detection vehicle (11).
4. The EL CID detection trolley self-adaptive giant stator core detection device as claimed in claim 1, wherein: the carrying mechanism (2) comprises a plurality of universal wheels (22) connected with the lower side of the carrying bottom plate (21) and a driving wheel (23) arranged in the middle of the carrying bottom plate (21), and a carrying motor (24) is connected with the driving wheel (23).
5. The EL CID detection trolley self-adaptive giant stator core detection device as claimed in claim 1, wherein: one side of the carrying bottom plate (21) is provided with a suspension plate (25), the suspension plate (25) is a flat plate, and the length of the suspension plate exceeds the thickness of the detection vehicle (11).
6. The EL CID detection trolley self-adaptive giant stator core detection device as claimed in claim 1, wherein: the limiting mechanism (3) comprises a rolling shaft (32) connected with one end of a support plate (31) and a limiting roller (33) in rolling fit with the rolling shaft (32), and the other end of the support plate (31) is connected with a carrying bottom plate (21) of the carrying mechanism (2).
7. The EL CID detection trolley self-adaptive giant stator core detection device as claimed in claim 6, wherein: the limiting roller (33) is hung on one side of the carrying mechanism (2) and is parallel to the screw rod (12) of the detection mechanism (1).
8. The EL CID detection trolley self-adaptive giant stator core detection device as claimed in claim 1, wherein: the detection motor (13) of the detection mechanism (1) is a servo motor, and the carrying motor (24) of the carrying mechanism (2) is a stepping motor.
9. The EL CID detection trolley self-adaptive giant stator core detection device as claimed in any one of claims 1 to 8, wherein: the device also comprises a controller, wherein the controller is electrically connected with the upper sensor (15), the lower sensor (16), the detection motor (13) and the carrying motor (24); the controller controls the detection motor (13) and the carrying motor (24) to move, and controls the detection motor (13) to rotate forward or reversely according to signals sensed by the upper sensor (15) or the lower sensor (16).
10. The EL CID detection trolley self-adaptive detection method for giant stator cores according to claim 9, which comprises the following steps:
s1, mounting, namely placing the carrying mechanism (2) on the upper side surface of the stator core, and positioning a detection vehicle (11) of the detection mechanism (1) in the stator core; in the step, a universal wheel (22) and a driving wheel (23) are in contact with the upper side surface of a stator core, a wheel (14) is close to the inner wall of the stator core, and a limiting roller (33) is in contact with the outer wall of the stator core; detecting that the vehicle (11) is in a starting state;
s2, carrying, wherein the controller sends an instruction to the carrying motor (24), the carrying motor (24) rotates by a stepping angle according to a preset program, the carrying mechanism (2) is limited by the wheels (14) and the limiting rollers (33) at the same time, and the detection mechanism (1) is driven to be transferred to the next detection position during movement; in the step, the distance between every two detection positions is the width of the detection vehicle (11);
s3, detecting, wherein the controller sends an instruction to a detection motor (13), the detection motor (13) drives a screw rod (12) to rotate to drive a detection vehicle (11) to move vertically downwards, and the detection vehicle (11) detects along the vertical direction of the inner wall of the stator core; in the step, in the process that the detection vehicle (11) vertically moves downwards to detect the inner wall of the iron core, the wheels (14) are limited to be in rolling contact with the inner wall of the stator iron core;
s4, detecting and controlling, wherein after the lower sensor (16) exceeds the lower end of the stator core, a signal sensed by the lower sensor (16) changes and is sent to the controller, and the controller sends an instruction to control the detection motor (13) to stop; in the step, detecting the clockwise rotation of the motor (13);
s5, reversing detection is carried out, the S2 is repeated, the detection vehicle (11) moves to the next detection position again, the controller sends an instruction to the detection motor (13), the detection motor (13) reverses and drives the screw rod (12) to rotate reversely, and the detection vehicle (11) moves vertically upwards to detect the inner wall of the iron core; in the step, after the upper sensor (15) exceeds the upper end of the stator core, a signal sensed by the upper sensor (15) changes and is sent to the controller, and the controller sends an instruction to control the detection motor (13) to stop;
s6, repeating S2-S5 in sequence until the carrying mechanism (2) finishes moving along the stator core in a circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111663912.3A CN114280510A (en) | 2021-12-31 | 2021-12-31 | Device and method for self-adaptively detecting giant stator core by using EL CID (electro-luminescence) detection trolley |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111663912.3A CN114280510A (en) | 2021-12-31 | 2021-12-31 | Device and method for self-adaptively detecting giant stator core by using EL CID (electro-luminescence) detection trolley |
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| CN114280510A true CN114280510A (en) | 2022-04-05 |
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| CN202111663912.3A Pending CN114280510A (en) | 2021-12-31 | 2021-12-31 | Device and method for self-adaptively detecting giant stator core by using EL CID (electro-luminescence) detection trolley |
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Application publication date: 20220405 |