CN209161323U - A kind of steel ladle trunnion lifting contraposition identification device - Google Patents
A kind of steel ladle trunnion lifting contraposition identification device Download PDFInfo
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- CN209161323U CN209161323U CN201821497875.7U CN201821497875U CN209161323U CN 209161323 U CN209161323 U CN 209161323U CN 201821497875 U CN201821497875 U CN 201821497875U CN 209161323 U CN209161323 U CN 209161323U
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- steel ladle
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Abstract
The utility model provides a kind of steel ladle trunnion lifting contraposition identification device, the identification device includes: the first lifting contraposition image acquisition units, the image of the white indicia of the trunnion and crane hook bill of captured in real-time steel ladle side is transmitted to main control unit as the first contraposition image information；Second lifting contraposition image acquisition units, the image of the white indicia of the trunnion and crane hook bill of the captured in real-time steel ladle other side are transmitted to main control unit as the second contraposition image information；Lift control circuit, is connected with main control unit, for controlling the raising and lowering of crane hook；The information that main control unit is returned according to the first lifting contraposition image acquisition units and the second lifting contraposition image acquisition units, drives lift control circuit behavior.Steel ladle trunnion lifting contraposition identification device has the advantages that design science, practical, structure is simple and identification is accurate.
Description
Technical field
The utility model relates to steel ladle hoisting technology fields, specifically, relate to a kind of steel ladle trunnion lifting pair
Position identification device.
Background technique
In steelmaking process, steel ladle is frequently necessary to crane and slings and be transported to different generation technique positions for iron and steel enterprise
It sets.
Currently, since sight is kept off, hoister can only see nearside steel ladle trunnion and lifting in hoisting process
Machine suspension hook, and the invisible remote steel ladle trunnion of nearside and crane hook by virtue of experience or can only be felt etc. to judge distal side trunnion
With crane hook whether accurate contraposition, if driver's experience it is insufficient, it is tired, absent-minded etc. easily judge by accident, to cause steel ladle
It the major accidents such as topples, fall off.
In order to solve the above problems, people are seeking always a kind of ideal technical solution.
Summary of the invention
The purpose of this utility model is in view of the deficiencies of the prior art, to provide a kind of design science, practical, knot
Structure is simply and the accurate steel ladle trunnion lifting of identification aligns identification device.
To achieve the goals above, the technical scheme adopted by the utility model is a kind of lifting contraposition of steel ladle trunnion
Identification device, including main control unit, and be connected respectively with the main control unit the first lifting contraposition image acquisition units, the
Two lifting contraposition image acquisition units and lift control circuit；
White indicia is coated on steel ladle trunnion and crane hook bill；
The first lifting contraposition image acquisition units, the trunnion and crane hook bill of captured in real-time steel ladle side
White indicia image as the first contraposition image information, and be transmitted to the main control unit；
The second lifting contraposition image acquisition units, the trunnion and crane hook hook of the captured in real-time steel ladle other side
The image of the white indicia of point is transmitted to the main control unit as the second contraposition image information；
The lift control circuit, is connected with the main control unit, for controlling the raising and lowering of crane hook；
The main control unit adopts bit image according to the first lifting contraposition image acquisition units and second lifting
Collect the information that unit returns, drives the lift control circuit behavior.
Based on above-mentioned, the lift control circuit is connected by dynamic circuit breaker switch K4 with the main control unit；
The lift control circuit includes power supply, single-pole three-throw switch K1, suspension hook down relay switch K2, suspension hook
Vertical relay switch K3；The stationary contact of the single-pole three-throw switch K1 connects the power supply, the single-pole three-throw switch
The first movable contact of K1 connects the coil of the suspension hook down relay switch K2, the dynamic touching of the second of the single-pole three-throw switch K1
Point connection ground terminal, the third movable contact of the single-pole three-throw switch K1 connect the line of the suspension hook vertical relay switch K3
Circle.
Based on above-mentioned, the utility model further includes the alarm unit being connected with the main control unit, when any side molten steel
When the contraposition of the suspension hook of packet trunnion and crane is abnormal, the main control unit drives the alarm unit to issue alarm signal.
Based on above-mentioned, the drivers' cab of crane is arranged in the main control unit and the alarm unit.
Based on above-mentioned, the first lifting contraposition image acquisition units and the second lifting contraposition image acquisition units are equal
Using high-definition camera.
Based on above-mentioned, the first lifting contraposition image acquisition units and the second lifting contraposition image acquisition units are just
Trunnion setting to the left and right sides of steel ladle.
The utility model has substantive features and progress compared with the prior art, and specifically, the utility model provides
A kind of steel ladle trunnion lifting contraposition identification device, the first lifting contraposition image acquisition units, captured in real-time steel ladle side
The image of the white indicia of trunnion and crane hook bill is transmitted to the master control list as the first contraposition image information
Member；The second lifting contraposition image acquisition units, the trunnion of the captured in real-time steel ladle other side and crane hook bill
The image of white indicia is transmitted to the main control unit as the second contraposition image information；The main control unit is according to
The information that first lifting contraposition image acquisition units and the second lifting contraposition image acquisition units return, drives the raising
Control loop movement；
The utility model controls the lift control circuit according to the alignment situation of steel ladle trunnion and the suspension hook of crane
Movement is avoided because steel ladle such as is toppled, is detached from the major accidents caused by hanging, break off relations partially etc.；
In conclusion the utility model has the advantages that design science, practical, structure is simple and identification is accurate.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the schematic diagram in the lift control circuit of the utility model.
Fig. 3 is the trunnion of the utility model and the schematic diagram of suspension hook.
Fig. 4 is the main flow schematic diagram of the utility model.
Fig. 5 is the trunnion and suspension hook relative position and apart from schematic diagram of the utility model.
Fig. 6 is the trunnion profile rectangle identification process schematic diagram of the utility model.
Fig. 7 is the suspension hook profile rectangle identification process schematic diagram of the utility model.
Fig. 8 is the trunnion and suspension hook relative position and apart from schematic diagram of calculation flow of the utility model.
Specific embodiment
Below by specific embodiment, the technical solution of the utility model is described in further detail.
Embodiment 1
As shown in attached drawing 1- attached drawing 3, a kind of steel ladle trunnion lifting contraposition identification device, it includes main control unit, and
The first lifting being connected respectively with the main control unit aligns image acquisition units, the second lifting contraposition image acquisition units and rises
Rise control loop；
White indicia is coated on steel ladle trunnion and crane hook bill；
The first lifting contraposition image acquisition units, the trunnion and crane hook bill of captured in real-time steel ladle side
White indicia image as the first contraposition image information, and be transmitted to the main control unit；
The second lifting contraposition image acquisition units, the trunnion and crane hook hook of the captured in real-time steel ladle other side
The image of the white indicia of point is transmitted to the main control unit as the second contraposition image information；
The lift control circuit, is connected with the main control unit, for controlling the raising and lowering of crane hook；
The main control unit adopts bit image according to the first lifting contraposition image acquisition units and second lifting
Collect the information that unit returns, drives the lift control circuit behavior.
This gives a kind of specific embodiment in lift control circuit, the lift control circuit passes through dynamic circuit breaker
Switch K4 is connected with the main control unit；The lift control circuit includes power supply, single-pole three-throw switch K1, suspension hook decline
Relay switch K2, suspension hook vertical relay switch K3；The stationary contact of the single-pole three-throw switch K1 connects the power supply,
The first movable contact of the single-pole three-throw switch K1 connects the coil of the suspension hook down relay switch K2, the single-pole three throw
The second movable contact of switch K1 connects ground terminal, the third movable contact of the single-pole three-throw switch K1 connect the suspension hook rise after
The coil of electric switch K3.
When the stationary contact of the single-pole three-throw switch and the first movable contact are connected, the line of the suspension hook down relay switch
Enclose electric, the suspension hook down relay switch is attracted, and is able to carry out the suspension hook step-down operation of crane；The single-pole three throw is opened
When the stationary contact of pass and third movable contact are connected, the coil of the suspension hook vertical relay switch obtain it is electric, the suspension hook rise after
Electric switch is attracted, and is able to carry out the suspension hook lifting operations of crane；The stationary contact of the single-pole three-throw switch and the second dynamic touching
When point is connected, the suspension hook of crane not can be carried out raising operation, and the lift control circuit of crane is off-state.
Specifically, the utility model further includes the alarm unit being connected with the main control unit, when any side steel ladle
When the contraposition of the suspension hook of trunnion and crane is abnormal, the main control unit drives the alarm unit to issue alarm signal, warning behaviour
Make personnel.The main control unit and the alarm unit are fixed on the appropriate location of drivers' cab；The main control unit passes through control
Output interface connects the lift control circuit, connects the alarm unit by warning output interface.
Specifically, the first lifting contraposition image acquisition units and the second lifting contraposition image acquisition units are adopted
With high-definition camera, the trunnion of the left and right sides of face steel ladle is arranged, be mounted on the right and left of steel ladle column or its
On its fixture, high-definition camera angle is adjusted, so that trunnion and suspension hook is all in the approximate centre position of image, to acquire two
It picks up the ears the image information of axis and suspension hook when aligning, and is sent wirelessly to the main control unit.The first lifting contraposition
Image acquisition units and the second lifting contraposition image acquisition units are provided with wireless transmitter, and the main control unit is provided with
Wireless receiver.
Embodiment 2
As shown in figures 4 and 5, a kind of steel ladle trunnion lifting contraposition recognition methods, utilizes the claims institute
State contraposition identification device, comprising the following steps:
Step 1, by the end face of steel ladle two sides to be lifted trunnion and crane hook bill painted white；
Step 2, the steel ladle to be lifted is moved into Hoisting Position, the suspension hook is moved to below the trunnion；
Step 3, the first lifting contraposition image acquisition units and the second lifting contraposition image acquisition units, in real time
The trunnion of steel ladle two sides and the contraposition image information of crane hook are acquired, and is transmitted to the main control unit；
Step 4, the main control unit identifies two kinds of profile rectangles according to the contraposition image information, and according to profile
The area of rectangle, judgement are trunnion profile rectangle or suspension hook profile rectangle；
The biggish area of two kinds of profile rectangles is trunnion profile rectangle, and lesser is suspension hook profile rectangle；
Step 5, according to the position coordinates of the location coordinate information of the trunnion profile rectangle and the suspension hook profile rectangle
Information, the main control unit determine whether the trunnion of steel ladle two sides meets with the relative positional relationship of the suspension hook of corresponding crane
Lifting requirements；
Step 6, it is wanted if the trunnion of steel ladle two sides is all satisfied lifting with the relative positional relationship of the suspension hook of corresponding crane
It asks, then the main control unit drives crane to carry out lift operations by the lift control circuit；Otherwise 7 are gone to step；
Step 7, the main control unit drives the alarm unit to issue alarm signal, simultaneously switches off the lift control and returns
Road.
Specifically, the main control unit is identified according to the contraposition image information indicates steel ladle ear in the step 4
First white area of axis profile rectangle, specifically:
Pixel progressive scan to the contraposition image information, traverses each pixel；First for recording every a line be
The location of pixels F of white pixel, the last one is the location of pixels L of white pixel and the number of white pixel；
The size for comparing the location of pixels F of white pixel, the location of pixels F minimum value of white pixel is white labeled as first
The location of pixels Left1 of the color region leftmost side；
The size for comparing the location of pixels L of white pixel, the location of pixels L maximum value of white pixel is white labeled as first
The location of pixels Right1 of the color region rightmost side；
When scanning to m-1 row white pixel number is equal to zero, and the number of m row white pixel is greater than zero, then by the
The location of pixels Top1 of one white area top side is labeled as Top1=m；
When scanning to the (n-1)th row white pixel number is greater than zero, and the number of line n white pixel is equal to zero, then by the
The location of pixels Bottom1 of one white area lower side is labeled as Bottom1=n；
According to the location of pixels Left1 of the first white area leftmost side, the location of pixels Top1 of top side, the picture of the rightmost side
The plain position Right1 and location of pixels Bottom1 of lower side, the coordinate position for obtaining the trunnion profile rectangle upper left corner are
(Left1, Top1), the coordinate position in the lower right corner are (Right1, Bottom1)；To obtain trunnion profile rectangle.
Specifically, the main control unit is identified according to the contraposition image information indicates suspension hook profile in the step 4
Second white area of rectangle；Specifically:
Since the next line of the first white area, the pixel of the contraposition image information is progressively scanned；It records each
Capable first is the location of pixels F ' of white pixel, the last one is the location of pixels L ' and white pixel of white pixel
Number；
Location of pixels F ' the minimum value of white pixel is labeled as second by the size for comparing the location of pixels F ' of white pixel
The location of pixels Left2 of the white area leftmost side；
Location of pixels L ' the maximum value of white pixel is labeled as second by the size for comparing the location of pixels L ' of white pixel
The location of pixels Right2 of the white area rightmost side；
When scanning to -1 row white pixel number of pth is equal to zero, and the number of pth row white pixel is greater than zero, then by the
The location of pixels Top2 of two white area top sides is labeled as Top2=p；
When scanning to q-1 row white pixel number is greater than zero, and the number of q row white pixel is equal to zero, then by the
The location of pixels Bottom2 of two white area lower sides is labeled as Bottom2=q；
According to the location of pixels Left2 of the second white area leftmost side, the location of pixels Top2 of top side, the picture of the rightmost side
The plain position Right2 and location of pixels Bottom2 of lower side, the coordinate position for obtaining the suspension hook profile rectangle upper left corner are
(Left2, Top2), the coordinate position in the lower right corner are (Right2, Bottom2)；To obtain suspension hook profile rectangle
Embodiment 3
The present embodiment the difference from example 2 is that: as shown in Fig. 6, in the step 4, the main control unit according to
The contraposition image information identifies the first white area for indicating steel ladle trunnion profile rectangle, specific steps are as follows:
Step 4.1, the location of pixels that the first white area leftmost side is arranged is Left1=0, the location of pixels of top side
Top1=0, location of pixels Right1=0 of the rightmost side, location of pixels Bottom1=0 of lower side；White pixel number N (i)=0；
Step 4.2, the contraposition image information is progressively scanned；I=0 is set；
Step 4.3, j=0 is set；
Step 4.4, k=0 is set；
Step 4.5, if (i, j+k) pixel is white, then the white pixel number N (i) of the i-th row=N (i)+1；
The last one for recording location of pixels F (the i)=j and the i-th row that first of the i-th row is white be white picture
Plain position L (i)=j+N (i), then goes to step 4.6；Otherwise 4.8 are directly gone to step；
Step 4.6, if first of the i-th row location of pixels F (i) < F (i-1) for white, the first white area is recorded
Location of pixels Left1=F (i) of the leftmost side, then goes to step 4.7；Otherwise 4.8 are directly gone to step；
Step 4.7, if the last one of the i-th row is location of pixels L (i) > L (i-1) of white, the first white area is recorded
Location of pixels Right1=L (i) of the domain rightmost side, then goes to step 4.8；Otherwise 4.8 are directly gone to step；
Step 4.8, k=k+1；If j+k is less than or equal to picture traverse value, 4.9 are gone to step；Otherwise 4.5 are gone to step；
Step 4.9, if the white pixel number N (i-1)=0 of the (i-1)-th row and white pixel number N (i) > 0 of the i-th row,
Location of pixels Top1=the i for recording the first white area top side, then goes to step 4.10；Otherwise 4.10 are directly gone to step；
Step 4.10, if the white pixel number N (i-1) > 0 of the (i-1)-th row and white pixel number N (i)=0 of the i-th row,
Location of pixels Bottom1=the i for then recording the first white area lower side, then goes to step 4.11；Otherwise it directly goes to step
4.11；
Step 4.11, j=j+1 enables i=i+1, then goes to step 4.12 if j is less than or equal to picture traverse value；Otherwise straight
Switch through step 4.4；
Step 4.12, if i is less than or equal to picture altitude value, judge whether to terminate this identification process；If being not finished,
Go to step 4.1；
If i is greater than picture altitude value, 4.3 are gone to step；
It step 4.13, is Left1, the pixel position of top side according to the location of pixels of the trunnion profile rectangle leftmost side of acquisition
Top1, the location of pixels Right1 of the rightmost side and the location of pixels Bottom1 of lower side are set, it is left to obtain trunnion profile rectangle
The coordinate position at upper angle is (Left1, Top1), and the coordinate position in the lower right corner is (Right1, Bottom1).
Embodiment 4
The present embodiment the difference from example 2 is that: as shown in Fig. 7, in the step 4, the main control unit according to
The contraposition image information identifies suspension hook profile rectangle；
According to the location of pixels Left2 of the second white area of suspension hook profile leftmost side of acquisition, the location of pixels of top side
Top2, the location of pixels Right2 of the rightmost side and the location of pixels Bottom2 of lower side obtain suspension hook profile rectangle upper left
The coordinate position at angle is (Left2, Top2), and the coordinate position in the lower right corner is (Right2, Bottom2).Specific steps are as follows:
Step S4.1, the location of pixels of the second white area leftmost side of setting are Left2=0, the location of pixels of top side
Top2=0, location of pixels Right2=0 of the rightmost side, location of pixels Bottom2=0 of lower side；
Step S4.2 progressively scans the contraposition image information；I=picture altitude value, the picture altitude value are set
Equal to Top1- Bottom1；
J=0 is arranged in step S4.3；
K=0 is arranged in step S4.4；
Step S4.5, if (i, j+k) pixel is white, then the white pixel number N (i) of the i-th row=N (i)+1；
The last one for recording location of pixels F (the i)=j and the i-th row that first of the i-th row is white be white picture
Plain position L (i)=j+N (i), then goes to step S4.6；Otherwise S4.8 is directly gone to step；
Step S4.6 records the second white area if first of the i-th row location of pixels F (i) < F (i-1) for white
Location of pixels Left2=F (i) of the domain leftmost side, then goes to step S4.7；Otherwise S4.8 is directly gone to step；
Step S4.7, if the penultimate that the last one of the i-th row is the row of location of pixels L (i) > i-th of white is white
The location of pixels L (i-1) of color, then record location of pixels Right2=L (i) of the second white area rightmost side, then go to step
S4.8；Otherwise S4.8 is directly gone to step；
Step S4.8, k=k+1；If j+k is less than or equal to picture traverse value, which is equal to Right1- Left1,
Then go to step S4.9；Otherwise S4.5 is gone to step；
Step S4.9, if the white pixel number N (i-1)=0 of the (i-1)-th row and white pixel number N (i) > 0 of the i-th row,
Location of pixels Top2=the i for then recording the second white area top side, then goes to step S4.10；Otherwise S4.10 is directly gone to step；
Step S4.10, if the white pixel number N (i-1) > 0 of the (i-1)-th row and white pixel number N (i)=0 of the i-th row,
Location of pixels Bottom2=the i for then recording the second white area lower side, then goes to step S4.11；Otherwise it directly goes to step
S4.11；
Step S4.11, j=j+1 enable i=i-1, then go to step S4.12 if j is less than or equal to picture traverse value；Otherwise
Directly go to step S4.4；
Step S4.12 judges whether to terminate this identification process if i is equal to zero；If being not finished, S4.1 is gone to step；
If i is not equal to zero, S4.3 is gone to step；
Step S4.13 is Left2, the pixel of top side according to the location of pixels of the second white area leftmost side of acquisition
Position Top2, the location of pixels Right2 of the rightmost side and the location of pixels Bottom2 of lower side obtain trunnion profile rectangle
The coordinate position in the upper left corner is (Left2, Top2), and the coordinate position in the lower right corner is (Right2, Bottom2).
Embodiment 5
The present embodiment the difference from example 2 is that: as shown in Fig. 8, main control unit described in step 5 determine steel ladle
Whether the trunnion of two sides meets lifting requirements with the relative positional relationship of the suspension hook of corresponding crane, specifically includes the following steps:
Step 5.1, it initializes, mark P=No of the steel ladle trunnion above the suspension hook of crane；
Step 5.2, if the location of pixels Top2 of suspension hook profile rectangle top side is less than the picture of trunnion profile rectangle lower side
Plain position Bottom1, then go to step 5.3；Otherwise 5.1 are gone to step；
Step 5.3, if the location of pixels Left2 of the suspension hook profile rectangle leftmost side is more than or equal to the trunnion profile rectangle leftmost side
Location of pixels Left1, and the location of pixels Left2 of the suspension hook profile rectangle leftmost side be less than the trunnion profile rectangle rightmost side picture
Plain position Right1；
Alternatively, if the location of pixels Right2 of the suspension hook profile rectangle rightmost side is more than or equal to the trunnion profile rectangle leftmost side
Location of pixels Left1, and the location of pixels Right2 of the suspension hook profile rectangle rightmost side is less than the picture of the trunnion profile rectangle rightmost side
Plain position Right1；
Then determine that steel ladle trunnion above the suspension hook of crane, indicates P=Yes at this time, then goes to step 5.4；Otherwise turn
Step 5.1；
Step 5.4, according to the picture of the location of pixels Top2 of suspension hook profile rectangle top side and trunnion profile rectangle lower side
The distance between suspension hook profile and trunnion profile d, d=Bottom1-Top2 is calculated in plain position Bottom1.
Step 5.5, if the distance between suspension hook profile and trunnion profile d are greater than preset value, determine steel ladle two sides
Trunnion meets lifting requirements with the relative positional relationship of the suspension hook of corresponding crane；
Otherwise it is abnormal to determine that the trunnion of steel ladle two sides and the suspension hook of corresponding crane align.
Finally it should be noted that: above embodiments are only to illustrate the technical solution of the utility model rather than limit it
System；Although the utility model has been described in detail with reference to the preferred embodiment, those of ordinary skill in the art should
Understand: specific implementation of the utility model can still be modified or is equally replaced to some technical characteristics
It changes；Without departing from the spirit of technical solutions of the utility model, should all cover in the claimed technical solution of the utility model
In range.
Claims (6)
1. a kind of steel ladle trunnion lifting contraposition identification device, it is characterised in that: including main control unit, and respectively with the master
Control the first lifting contraposition image acquisition units, the second lifting contraposition image acquisition units and lift control circuit that unit is connected；
White indicia is coated on steel ladle trunnion and crane hook bill；
The first lifting contraposition image acquisition units, the trunnion of captured in real-time steel ladle side and crane hook bill it is white
The image that colour code is known is transmitted to the main control unit as the first contraposition image information；
The second lifting contraposition image acquisition units, the trunnion of the captured in real-time steel ladle other side and crane hook bill
The image of white indicia is transmitted to the main control unit as the second contraposition image information；
The lift control circuit, is connected with the main control unit, for controlling the raising and lowering of crane hook；
The main control unit is according to the first lifting contraposition image acquisition units and the second lifting contraposition Image Acquisition list
The information that member returns, drives the lift control circuit behavior.
2. steel ladle trunnion lifting contraposition identification device according to claim 1, it is characterised in that: the lift control returns
Road is connected by dynamic circuit breaker switch K4 with the main control unit；
The lift control circuit includes power supply, single-pole three-throw switch K1, suspension hook down relay switch K2, suspension hook rising
Relay switch K3；The stationary contact of the single-pole three-throw switch K1 connects the power supply, the single-pole three-throw switch K1's
First movable contact connects the coil of the suspension hook down relay switch K2, and the second movable contact of the single-pole three-throw switch K1 connects
Ground terminal is connect, the third movable contact of the single-pole three-throw switch K1 connects the coil of the suspension hook vertical relay switch K3.
3. steel ladle trunnion lifting contraposition identification device according to claim 2, it is characterised in that: further include and the master
The connected alarm unit of unit is controlled, when the suspension hook of any side steel ladle trunnion and crane aligns exception, the master control list
Member drives the alarm unit to issue alarm signal.
4. steel ladle trunnion according to claim 3 lifting contraposition identification device, it is characterised in that: the main control unit and
The drivers' cab of crane is arranged in the alarm unit.
5. steel ladle trunnion lifting contraposition identification device according to claim 1, it is characterised in that: first lifting pair
Bit image acquisition unit and the second lifting contraposition image acquisition units are all made of high-definition camera.
6. steel ladle trunnion lifting contraposition identification device according to claim 1, it is characterised in that: first lifting pair
The trunnion setting of the left and right sides of bit image acquisition unit and the second lifting contraposition image acquisition units face steel ladle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821497875.7U CN209161323U (en) | 2018-09-13 | 2018-09-13 | A kind of steel ladle trunnion lifting contraposition identification device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821497875.7U CN209161323U (en) | 2018-09-13 | 2018-09-13 | A kind of steel ladle trunnion lifting contraposition identification device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108892042A (en) * | 2018-09-13 | 2018-11-27 | 郑州大学 | A kind of steel ladle trunnion lifting contraposition identification device and method |
| CN114559024A (en) * | 2022-01-19 | 2022-05-31 | 中国重型机械研究院股份公司 | Electromagnetic induction heating tundish improvement design method |
-
2018
- 2018-09-13 CN CN201821497875.7U patent/CN209161323U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108892042A (en) * | 2018-09-13 | 2018-11-27 | 郑州大学 | A kind of steel ladle trunnion lifting contraposition identification device and method |
| CN108892042B (en) * | 2018-09-13 | 2024-05-03 | 郑州大学 | Steel ladle trunnion hoisting alignment recognition device and method |
| CN114559024A (en) * | 2022-01-19 | 2022-05-31 | 中国重型机械研究院股份公司 | Electromagnetic induction heating tundish improvement design method |
| CN114559024B (en) * | 2022-01-19 | 2024-04-30 | 中国重型机械研究院股份公司 | Electromagnetic induction heating tundish transformation design method |
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