CN220078392U - Excessive tipping prevention system for ladle lifting operation - Google Patents
Excessive tipping prevention system for ladle lifting operation Download PDFInfo
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- CN220078392U CN220078392U CN202322581339.2U CN202322581339U CN220078392U CN 220078392 U CN220078392 U CN 220078392U CN 202322581339 U CN202322581339 U CN 202322581339U CN 220078392 U CN220078392 U CN 220078392U
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- Prior art keywords
- lifting
- auxiliary
- ladle
- main
- detection device
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- 230000002265 prevention Effects 0.000 title claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 40
- 239000010959 steel Substances 0.000 claims abstract description 40
- 238000004804 winding Methods 0.000 claims abstract description 31
- 238000001514 detection method Methods 0.000 claims abstract description 27
- 238000005266 casting Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Control And Safety Of Cranes (AREA)
- Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
Abstract
The steel ladle lifting operation excessive tipping prevention system comprises a PLC controller, a main lifting hook for lifting the steel ladle, an auxiliary lifting hook for tipping the steel ladle, a main lifting reel and an auxiliary lifting reel which are respectively lifted by lifting ropes, are arranged on a frame at intervals in parallel, and are respectively controlled to rotate by a main motor and an auxiliary motor; the hoisting rope of the auxiliary hoisting winding drum, which is close to the steel ladle, is connected with a tension detection device for detecting the tension of the hoisting rope, and the PLC is respectively in corresponding signal connection with the main motor, the auxiliary motor, the first absolute value encoder, the second absolute value encoder and the tension detection device; the system for preventing excessive tipping can ensure the safety of the lifting and overturning operation of the steel ladle.
Description
Technical Field
The utility model relates to the technical field of metallurgical casting lifting and handling, in particular to a steel ladle lifting operation excessive tipping prevention system.
Background
As known, the metallurgical casting crane is widely applied to ladle lifting and overturning dumping operations, as shown in the disclosure of Chinese patent publication No. CN104550895A, the metallurgical casting crane is generally provided with a main lifting mechanism and an auxiliary lifting mechanism, the main lifting mechanism is used for lifting the middle upper part of the outer wall of a ladle through a lifting hook, so that the ladle is upwards at a static discharging opening and is mainly used for conveying and transporting the ladle, and when materials are required to be dumped from the ladle in place during conveying, the auxiliary lifting mechanism which is lifted on one side of the ladle through the lifting hook is used for realizing differential control of the two lifting hooks, so that the ladle can be dumped for discharging; however, when the personnel are tired, the situation of excessive tipping of the lifting appliance is easy to occur, not only the personnel are in dangerous environment, but also equipment damage and production stagnation are possibly caused, so that a protection mechanism is necessary to avoid the situation of excessive tipping of the steel ladle.
Disclosure of Invention
In order to overcome the defects in the background art and solve the existing technical problems, the utility model discloses a steel ladle lifting operation excessive tipping prevention system which can ensure the safety of steel ladle lifting and tipping operation.
In order to achieve the aim of the utility model, the utility model adopts the following technical scheme:
the system comprises a PLC controller, a main lifting hook for lifting the steel ladle, an auxiliary lifting hook for tipping the steel ladle, and a main lifting reel and an auxiliary lifting reel which are respectively lifted by a lifting rope and are arranged on a frame at intervals in parallel and are respectively controlled to rotate by a main motor and an auxiliary motor; the hoisting device is characterized in that a first absolute value encoder and a second absolute value encoder are respectively arranged on the cylinder shafts of the main hoisting cylinder and the auxiliary hoisting cylinder, a tension detection device for detecting the tension of the hoisting rope is connected to the hoisting rope of the auxiliary hoisting cylinder, which is close to the steel ladle, and the PLC is respectively in corresponding signal connection with the main motor, the auxiliary motor, the first absolute value encoder, the second absolute value encoder and the tension detection device.
Further, the PLC controller is also correspondingly connected with an alarm device through a signal.
Further, the auxiliary lifting winding drum is arranged on the auxiliary trolley, the distance between the auxiliary lifting winding drum and the main lifting winding drum can be adjusted through the operation mechanism of the auxiliary trolley, a lifting rope inclination detection device is arranged on a lifting rope of the auxiliary lifting winding drum, which is positioned between the steel ladle and the tension detection device, and the lifting rope inclination detection device is in corresponding signal connection with the operation mechanism of the auxiliary trolley.
Further, the lifting rope of vice lifting reel between ladle and pulling force detection device overcoat has fixed cover, one side sleeve wall of fixed cover is equipped with the screw hole, set screw has been furnished with in the screw hole, lifting rope slope detection device installs in fixed cover opposite side sleeve wall.
Further, the primary lifting winding drum and the secondary lifting winding drum are respectively provided with a first brake and a second brake, and the first brake and the second brake are respectively in corresponding signal connection with the PLC.
Further, the main lifting hook is rotatably hung on the upper part of the ladle, and the auxiliary lifting hook is rotatably hung on the bottom of the ladle.
Due to the adoption of the technical scheme, the utility model has the following beneficial effects:
according to the system for preventing excessive tipping of ladle lifting operation, when the ladle is lifted through differential control of the main lifting winding drum and the auxiliary lifting winding drum, the rotation position and the speed information of the main lifting winding drum and the auxiliary lifting winding drum can be respectively obtained by utilizing the first absolute value encoder and the second absolute value encoder, then the real-time tipping angle of the ladle is calculated by the PLC, once the tipping angle of the ladle is too large due to negligence of an operator, the main motor and the auxiliary motor are controlled by the PLC to be close to a set value, and then the main lifting winding drum and the auxiliary lifting winding drum are controlled to be decelerated to stop, so that the safety of personnel and equipment is ensured; in addition, the lifting rope of the auxiliary lifting reel is not stressed when the steel ladle is moved and transferred, the tension of the lifting rope can be detected by utilizing the tension detection device at any time, the misoperation of the auxiliary lifting reel can be prevented, and the stress moment of the lifting rope of the auxiliary lifting reel during working can be recorded, so that the lifting difference value of the main lifting reel and the auxiliary lifting reel is calibrated.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present utility model;
fig. 2 is a schematic sectional view of an installation structure of the hanging rope inclination detecting device.
In the figure: 1. a second absolute value encoder; 2. an auxiliary lifting winding drum; 3. a main hoisting drum; 4. a first absolute value encoder; 5. a main hook; 6. an auxiliary lifting hook; 7. a lifting rope inclination detection device; 8. an alarm device; 9. a tension detecting device; 10. a PLC controller; 11. an auxiliary trolley; 12. a fixed sleeve; 13. and (5) setting the screw.
Detailed Description
In the description, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", etc., the drawings merely correspond to the drawings of the present utility model, and in order to facilitate description of the present utility model, it is not indicated or implied that the device or element referred to must have a specific azimuth:
embodiment one:
the steel ladle lifting operation excessive tipping prevention system comprises a PLC (programmable logic controller) 10, a main lifting hook 5 for lifting steel ladles, an auxiliary lifting hook 6 for tipping the steel ladles, and a main lifting drum 3 and an auxiliary lifting drum 2 for lifting the main lifting hook 5 and the auxiliary lifting hook 6 through lifting ropes respectively, wherein the main lifting hook 5 is generally rotationally hung on the upper part of the steel ladles, the auxiliary lifting hook 6 is rotationally hung on the bottom of the steel ladles, the main lifting drum 3 and the auxiliary lifting drum 2 are arranged on a frame side by side at intervals and are respectively controlled by a main motor and an auxiliary motor to rotate, the main lifting drum 3 is used for lifting the steel ladles, so that the steel ladles are upwards at a static feed opening and mainly used for conveying and transporting the steel ladles, and when materials are required to be poured from the steel ladles in place, the auxiliary lifting drum 2 is utilized to realize differential control of the two lifting hooks, so that the steel ladles can be tipped and discharged;
the hoisting rope of the auxiliary hoisting reel 2, which is close to the steel ladle, is connected with a tension detection device 9 for detecting the tension of the hoisting rope, the PLC 10 is respectively connected with a main motor, an auxiliary motor, the first absolute value encoder 4, the second absolute value encoder 1 and the tension detection device 9 in a corresponding signal manner, and the PLC 10 can acquire the acquired information of the first absolute value encoder 4 and the second absolute value encoder 1 and perform analysis and calculation to obtain the turnover angle of the steel ladle; the PLC 10 is also correspondingly connected with an alarm device 8 through a signal according to the requirement, and can alarm through the alarm device 8 when the steel ladle is overturned; in addition, the primary lifting winding drum 3 and the secondary lifting winding drum 2 are respectively provided with a first brake and a second brake, the first brake and the second brake are respectively connected with the PLC 10 in a corresponding signal mode, and when the steel ladle is overturned excessively, the first brake and the second brake can be controlled to brake immediately.
When the steel ladle lifting operation excessive tipping prevention system is implemented, when the steel ladle is lifted, the first absolute value encoder 4 and the second absolute value encoder 1 can be utilized to respectively acquire the rotation position and the speed information of the main lifting winding drum 3 and the auxiliary lifting winding drum 2, the PLC controller 10 is used for calculating the real-time tipping angle of the steel ladle, once the tipping angle of the steel ladle is too large due to negligence of an operator and is close to a set value, the PLC controller 10 can be used for controlling the main motor and the auxiliary motor, further controlling the main lifting winding drum 3 and the auxiliary lifting winding drum 2 to decelerate, and stopping is controlled when the tipping angle reaches the set value, so that the safety of personnel and equipment is ensured.
Embodiment two:
when the lifting height of the steel ladle is very low, because the lifting rope is longer in extension, deviation caused by the inclination of the lifting rope can be ignored, but if the lifting height of the steel ladle is higher, the inclination deviation can be amplified when the lifting rope is shorter, the horizontal distance between the main lifting hook 5 and the auxiliary lifting hook 6 can be changed when the steel plate is overturned, if the distance between the auxiliary lifting winding drum 2 and the main lifting winding drum 3 is unchanged, the lifting rope tends to incline, once the lifting rope is inclined, the length of the lifting rope at the same height tends to be changed, the judgment can not be simply carried out according to the length of the winding drum for winding and unwinding the lifting rope, and the real-time tipping angle of the steel ladle calculated by the PLC 10 is inaccurate; therefore, on the basis of the first embodiment, the auxiliary lifting reel 2 is mounted on the auxiliary trolley 11, the distance between the auxiliary lifting reel 2 and the main lifting reel 3 can be adjusted through the running mechanism of the auxiliary trolley 11, a lifting rope inclination detection device 7 is mounted on a lifting rope of the auxiliary lifting reel 2 between the steel ladle and the tension detection device 9, the lifting rope inclination detection device 7 is correspondingly in signal connection with the running mechanism of the auxiliary trolley 11, and when the lifting rope inclination is detected through the lifting rope inclination detection device 7, the auxiliary trolley 11 can be controlled to drive the auxiliary lifting reel 2 to move so that the lifting rope returns to the vertical state, and the accuracy of final tipping angle calculation is ensured; as shown in fig. 2, a specific installation structure of the lifting rope inclination detection device 7 is that a fixing sleeve 12 is sleeved outside the lifting rope of the auxiliary lifting reel 2 between the steel ladle and the tension detection device 9, one side sleeve wall of the fixing sleeve 12 is provided with a threaded hole, a set screw 13 is arranged in the threaded hole, and the lifting rope inclination detection device 7 is installed on the other side sleeve wall of the fixing sleeve 12.
The utility model has not been described in detail in the prior art, and it is apparent to those skilled in the art that the utility model is not limited to the details of the above-described exemplary embodiments, but that the utility model can be embodied in other specific forms without departing from the spirit or essential characteristics thereof; the above-described embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (6)
1. The utility model provides a ladle handling operation prevents excessive tipping system, contains PLC controller (10), is used for main lifting hook (5) of handling ladle and is used for tipping auxiliary lifting hook (6) of ladle to and play to rise reel (3) and auxiliary lifting reel (2) that main lifting hook (5) and auxiliary lifting hook (6) are played through the lifting rope respectively, main play to rise reel (3) and auxiliary and play to rise reel (2) interval and install side by side on the frame to by main motor and auxiliary motor control rotation, characterized by respectively: the hoisting device is characterized in that a first absolute value encoder (4) and a second absolute value encoder (1) are respectively arranged on a cylinder shaft of the main hoisting cylinder (3) and a cylinder shaft of the auxiliary hoisting cylinder (2), a tension detection device (9) for detecting tension of the hoisting rope is connected to the hoisting rope, which is close to the ladle, of the auxiliary hoisting cylinder (2), and the PLC (10) is respectively in corresponding signal connection with the main motor, the auxiliary motor, the first absolute value encoder (4), the second absolute value encoder (1) and the tension detection device (9).
2. The ladle lifting operation excessive tipping prevention system according to claim 1, wherein: the PLC (10) is also correspondingly connected with an alarm device (8) through a signal.
3. The ladle lifting operation excessive tipping prevention system according to claim 1, wherein: the auxiliary lifting winding drum (2) is arranged on the auxiliary trolley (11), the distance between the auxiliary lifting winding drum (2) and the main lifting winding drum (3) can be adjusted through the running mechanism of the auxiliary trolley (11), a lifting rope inclination detection device (7) is arranged on a lifting rope, which is positioned between a steel ladle and the tension detection device (9), of the auxiliary lifting winding drum (2), and the lifting rope inclination detection device (7) is in corresponding signal connection with the running mechanism of the auxiliary trolley (11).
4. The ladle lifting operation excessive tipping prevention system according to claim 3, wherein: the auxiliary lifting winding drum (2) is arranged between the steel ladle and the tension detection device (9), a fixing sleeve (12) is sleeved outside the lifting rope, a threaded hole is formed in one side sleeve wall of the fixing sleeve (12), a set screw (13) is arranged in the threaded hole, and the lifting rope inclination detection device (7) is arranged on the other side sleeve wall of the fixing sleeve (12).
5. The ladle lifting operation excessive tipping prevention system according to claim 1, wherein: the main lifting winding drum (3) and the auxiliary lifting winding drum (2) are respectively provided with a first brake and a second brake, and the first brake and the second brake are respectively connected with a PLC (programmable logic controller) 10 in a corresponding signal mode.
6. The ladle lifting operation excessive tipping prevention system according to claim 1, wherein: the main lifting hook (5) is rotatably hung on the upper part of the ladle, and the auxiliary lifting hook (6) is rotatably hung on the bottom of the ladle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322581339.2U CN220078392U (en) | 2023-09-22 | 2023-09-22 | Excessive tipping prevention system for ladle lifting operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322581339.2U CN220078392U (en) | 2023-09-22 | 2023-09-22 | Excessive tipping prevention system for ladle lifting operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220078392U true CN220078392U (en) | 2023-11-24 |
Family
ID=88827630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322581339.2U Active CN220078392U (en) | 2023-09-22 | 2023-09-22 | Excessive tipping prevention system for ladle lifting operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220078392U (en) |
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2023
- 2023-09-22 CN CN202322581339.2U patent/CN220078392U/en active Active
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