CN115959575A - Method for evaluating safety performance of metallurgical bridge crane - Google Patents
Method for evaluating safety performance of metallurgical bridge crane Download PDFInfo
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- CN115959575A CN115959575A CN202211633781.9A CN202211633781A CN115959575A CN 115959575 A CN115959575 A CN 115959575A CN 202211633781 A CN202211633781 A CN 202211633781A CN 115959575 A CN115959575 A CN 115959575A
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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
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/30—Computing systems specially adapted for manufacturing
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Abstract
The application discloses a method for evaluating safety performance of a metallurgical bridge crane, which comprises the following steps: applying a current to the wire rope; collecting real-time electromagnetic field data of each steel wire rope; comparing the real-time electromagnetic field data with the pre-determined standard electromagnetic field data to obtain a corresponding comparison result; and determining the safety performance of the steel wire rope according to the comparison result. According to the method and the device, the current is applied to each steel wire rope, the electromagnetic field data generated under the action of the current is detected, and the evaluation result of whether the steel wire rope has the defects of abrasion, deformation and the like in actual use is obtained according to the electromagnetic field data, so that the real-time detection of each steel wire rope is realized, the evaluation result is real and reliable, and the safety of metallurgical production is improved.
Description
Technical Field
The application relates to the technical field of industrial hoisting equipment, in particular to a method for evaluating safety performance of a metallurgical bridge crane.
Background
In the production of metallurgical industry, a crane is indispensable equipment which performs tasks of lifting and moving various heavy equipments or products, and thus the normal operation of the crane is very important for the smooth progress of metallurgy. The bridge crane is a crane type commonly used in the metallurgical industry, and monitoring of the safety performance of the bridge crane is the key content of daily work of the crane and even metallurgy.
Since the bridge crane used in the metallurgical industry has a large load-bearing capacity, usually hundreds of tons, the number of steel cables used is very large, and the steel cables are used as vulnerable parts in the crane, which is very important for routine maintenance and repair of the steel cables. The various components of the crane are typically serviced and maintained regularly to ensure safety in everyday use. However, regular maintenance cannot completely prevent production accidents, and various uncertain factors in use amplify the tiny defects of the steel wire rope, thereby causing serious production accidents. Therefore, the state of the steel wire rope also needs to be monitored and evaluated in real time in the using process.
However, because of the large number of steel wire ropes, immediate manual monitoring and evaluation cannot achieve timely and accurate effects, and therefore, computer-based automatic monitoring and evaluation technology is developed. Generally, an image processing technology is mainly adopted in monitoring of the steel wire rope, whether the steel wire rope has defects is analyzed by collecting images of the steel wire rope in daily use, and then special personnel are reminded to process the defects before the tiny defects are amplified. However, the temperature in the metallurgical plant is very high, the position of the steel wire rope can be changed during the work, and the equipment in the metallurgical plant is numerous, so that great challenges are brought to accurately and efficiently extracting the information of the steel wire rope from the image, and the reliability of the safety performance evaluation result of the steel wire rope based on the image technology is low.
Disclosure of Invention
The embodiment of the application provides a method for evaluating the safety performance of a metallurgical bridge crane, which is used for solving the problem that the reliability of the safety performance evaluation result of a steel wire rope based on an image technology is not high in the prior art.
On one hand, the embodiment of the application provides a method for evaluating the safety performance of a metallurgical bridge crane, which comprises the following steps:
applying a current to the wire rope;
collecting real-time electromagnetic field data of each steel wire rope;
comparing the real-time electromagnetic field data with the standard electromagnetic field data which are measured in advance to obtain a corresponding comparison result;
and determining the safety performance of the steel wire rope according to the comparison result.
The safety performance evaluation method for the metallurgical bridge crane has the following advantages:
by applying current to each steel wire rope and detecting electromagnetic field data generated under the action of the current, the evaluation result of whether the steel wire rope has the defects of abrasion, deformation and the like in actual use is obtained according to the electromagnetic field data, so that the real-time detection of each steel wire rope is realized, the evaluation result is real and reliable, and the safety of metallurgical production is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart of a method for evaluating safety performance of a metallurgical bridge crane according to an embodiment of the present application;
FIG. 2 is a partial schematic structural diagram of a metallurgical bridge crane provided in an embodiment of the present application;
fig. 3 is a schematic longitudinal cross-sectional view of an electromagnetic detection apparatus provided in an embodiment of the present application;
fig. 4 is a schematic longitudinal sectional view of a current applying apparatus according to an embodiment of the present application.
The reference numbers illustrate: 100-electromagnetic detection means, 110-electromagnetic detection hole, 120-electromagnetic field detection unit, 200-current application means, 210-current application hole, 220-current application unit, 300-drive means, 400-boom.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Fig. 1 is a flowchart of a method for evaluating safety performance of a metallurgical bridge crane according to an embodiment of the present application. The embodiment of the application provides a method for evaluating the safety performance of a metallurgical bridge crane, which comprises the following steps:
and S100, applying current to the steel wire rope.
For example, as shown in fig. 2 and 4, current may be applied to the wire rope through a current applying device 200, the current applying device 200 being disposed at the bottom of the driving device 300 and/or at the top of the boom 400, the current applying device 200 having a plurality of current applying holes 210 disposed therein, each of the current applying holes 210 having a current applying unit 220 disposed therein, the current applying unit 220 being energized and contacting the wire rope located in the current applying hole 210.
In an embodiment, the current applying unit 220 may be a conductive layer, for example, a metal sheet or a metal ring, the conductive layer is disposed on an inner wall of the current applying hole 210, and when the steel cord is located in the current applying hole 210, the steel cord contacts the metal sheet to conduct the current in the metal sheet into the steel cord. In another embodiment, the current applying unit 220 includes a contact ball rotatably disposed on the inner wall of the current applying hole 210, and a conductive spring disposed inside the current applying device 200, wherein one end of the conductive spring is connected to the power supply, and the other end of the conductive spring is in sliding contact with the contact ball. When the wire rope is in the current applying hole 210, the contact ball made of the metal material is in contact with the wire rope, and the current introduced by the conductive elastic sheet is transmitted to the wire rope.
It will be appreciated that the current applied by the current applying unit 220 should be relatively small, typically below ten milliamperes, and preferably alternating current, to ensure that not only does the current flow not damage personnel and other equipment, but also to ensure that an alternating electromagnetic field is generated in the space near the wire rope.
Further, since the steel wire rope may be shaken during use, and thus the position of the steel wire rope in the current applying hole 210 may be changed, in order to ensure that the steel wire rope and the current applying unit 220 can be in close contact with each other even when the steel wire rope is in use, an elastic member is further provided between the current applying unit 220 and the current applying hole 210, and the current applying unit 220 can move in the current applying hole 210 along with the movement of the steel wire rope due to the elastic member, thereby ensuring the stability of the contact between the current applying unit 220 and the steel wire rope.
And S110, acquiring real-time electromagnetic field data of each steel wire rope.
Illustratively, as shown in fig. 3, real-time electromagnetic field data of each steel wire rope may be collected by an electromagnetic detection device 100, the electromagnetic detection device 100 is disposed at the bottom of a driving device 300 and/or at the top of a boom 400, a plurality of electromagnetic detection holes 110 are disposed inside the electromagnetic detection device 100, an electromagnetic field detection unit 120 is disposed in each electromagnetic detection hole 110, and the electromagnetic field detection unit 120 is configured to collect real-time electromagnetic field data of the steel wire rope located in the electromagnetic detection hole 110.
The electromagnetic field detection unit 120 may employ an electric field or magnetic field induction component, and detect electromagnetic field data generated after the steel wire rope is electrified by surrounding the steel wire rope. In the embodiment of the present application, the electromagnetic field detecting unit 120 is provided with an insulating contact layer on the side near the axis of the electromagnetic detecting hole 110. The inner diameter formed by the insulating contact layer is equivalent to the diameter of the steel wire rope, so that after the steel wire rope penetrates through the insulating contact layer, the electromagnetic field detection unit 120 positioned outside the insulating contact layer can always keep coaxial with the steel wire rope, and the accuracy of detected electromagnetic field data is further ensured. It will be appreciated that since the steel cord needs to slide inside the insulating contact layer, the insulating contact layer needs to have strong wear resistance in addition to the insulating properties.
Further, because the steel wire rope can shake in use, and the position of the steel wire rope in the electromagnetic detection hole 110 changes, in order to ensure that the steel wire rope and the insulating contact layer do not have excessive friction under the change and the service life of the insulating contact layer is reduced, an elastic member is arranged between the electromagnetic field detection unit 120 and the electromagnetic detection hole 110, and under the action of the elastic member, the electromagnetic field detection unit 120 and the insulating contact layer can move along with the movement of the steel wire rope in the electromagnetic detection hole 110, and further the insulating contact layer and the steel wire rope are always in a proper pressure state.
And S120, comparing the real-time electromagnetic field data with the standard electromagnetic field data which are measured in advance to obtain a corresponding comparison result.
Illustratively, the standard electromagnetic field data is detected for the first use of the steel cord. Specifically, the method for acquiring the standard electromagnetic field data comprises the following steps: acquiring standard weight data of a hoisting standard article; acquiring standard electromagnetic field data detected when a standard article is hoisted; establishing a mapping relation between the standard weight data and the standard electromagnetic field data; establishing a mapping relation table for mapping relations generated under a plurality of standard weight data; in the subsequent hoisting operation, firstly, the real-time weight data of the hoisted article is obtained, and then the standard electromagnetic field data corresponding to the real-time weight data is obtained in the mapping relation table.
Furthermore, the rotation angle data of the motor in the driving device 300 can be acquired, and then the mapping relation is established between the standard electromagnetic field data and the rotation angle data detected under different standard weight data, so that the relevance between the data is further improved. In the subsequent use, the real-time electromagnetic field data under different rotation angle data can be detected and then compared with the data under the corresponding rotation angle of the standard electromagnetic field data under the corresponding weight data.
And S130, determining the safety performance of the steel wire rope according to the comparison result.
Illustratively, when the real-time electromagnetic field data and the standard electromagnetic field data are compared, a side difference value between the real-time electromagnetic field data and the standard electromagnetic field data can be calculated, the difference value is compared with a set data threshold value, if the difference value exceeds the set threshold value, an evaluation result of potential safety hazards of the steel wire rope can be obtained, and after the evaluation result is obtained, production personnel can be reminded in an audible and visual alarm mode.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including the preferred embodiment and all changes and modifications that fall within the scope of the present application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. A safety performance evaluation method for a metallurgical bridge crane is characterized by comprising the following steps:
applying a current to the wire rope;
collecting real-time electromagnetic field data of each steel wire rope;
comparing the real-time electromagnetic field data with pre-determined standard electromagnetic field data to obtain a corresponding comparison result;
and determining the safety performance of the steel wire rope according to the comparison result.
2. The method for evaluating the safety performance of the metallurgical bridge crane according to claim 1, wherein the standard electromagnetic field data is detected when the steel wire rope is used for the first time.
3. The method for evaluating the safety performance of the metallurgical bridge crane according to claim 2, wherein the method for acquiring the standard electromagnetic field data comprises the following steps:
acquiring standard weight data of a hoisting standard article;
obtaining standard electromagnetic field data obtained by detection when a standard article is hoisted;
establishing a mapping relation between the standard weight data and the standard electromagnetic field data;
establishing a mapping relation table for mapping relations generated under the plurality of standard weight data;
in the subsequent hoisting operation, firstly, the real-time weight data of the hoisted article is obtained, and then the standard electromagnetic field data corresponding to the real-time weight data is obtained in the mapping relation table.
4. The safety performance evaluation method of the metallurgical bridge crane according to claim 1, characterized in that real-time electromagnetic field data of each steel wire rope is acquired through an electromagnetic detection device (100), the electromagnetic detection device (100) is arranged at the bottom of a driving device (300) and/or at the top of a suspension rod (400), a plurality of electromagnetic detection holes (110) are arranged in the electromagnetic detection device (100), an electromagnetic field detection unit (120) is arranged in each electromagnetic detection hole (110), and the electromagnetic field detection unit (120) is used for acquiring the real-time electromagnetic field data of the steel wire rope in the electromagnetic detection hole (110).
5. The metallurgical bridge crane safety performance evaluation method according to claim 4, wherein the electromagnetic field detection unit (120) is provided with an insulating contact layer on the side close to the axial line of the electromagnetic detection hole (110).
6. The method for evaluating the safety performance of the metallurgical bridge crane according to claim 4, wherein an elastic piece is arranged between the electromagnetic field detection unit (120) and the electromagnetic detection hole (110).
7. The metallurgical bridge crane safety performance evaluation method according to claim 1, characterized in that current is applied to the steel wire rope through a current applying device (200), the current applying device (200) is arranged at the bottom of the driving device (300) and/or at the top of the suspension rod (400), a plurality of current applying holes (210) are arranged inside the current applying device (200), a current applying unit (220) is arranged in each current applying hole (210), and the current applying unit (220) is electrified and is in contact with the steel wire rope in the current applying holes (210).
8. The safety evaluation method for the metallurgical bridge crane according to claim 7, wherein the current applying unit (220) is a conductive layer arranged on the inner wall of the current applying hole (210).
9. The method for evaluating the safety performance of a metallurgical bridge crane according to claim 7, wherein the current applying unit (220) comprises a contact ball and a conductive spring, the contact ball is rotatably arranged on the inner wall of the current applying hole (210), the conductive spring is arranged inside the current applying device (200), one end of the conductive spring is connected with a power supply, and the other end of the conductive spring is in sliding contact with the contact ball.
10. The method for evaluating the safety performance of the metallurgical bridge crane according to claim 7, wherein an elastic piece is arranged between the current applying unit (220) and the current applying hole (210).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211633781.9A CN115959575A (en) | 2022-12-19 | 2022-12-19 | Method for evaluating safety performance of metallurgical bridge crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211633781.9A CN115959575A (en) | 2022-12-19 | 2022-12-19 | Method for evaluating safety performance of metallurgical bridge crane |
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| Publication Number | Publication Date |
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| CN115959575A true CN115959575A (en) | 2023-04-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211633781.9A Pending CN115959575A (en) | 2022-12-19 | 2022-12-19 | Method for evaluating safety performance of metallurgical bridge crane |
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| CN (1) | CN115959575A (en) |
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- 2022-12-19 CN CN202211633781.9A patent/CN115959575A/en active Pending
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