CN113008358A - Vibration measurement method and system for monitoring vibration of chain bucket ship unloader - Google Patents
Vibration measurement method and system for monitoring vibration of chain bucket ship unloader Download PDFInfo
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- CN113008358A CN113008358A CN202110266251.4A CN202110266251A CN113008358A CN 113008358 A CN113008358 A CN 113008358A CN 202110266251 A CN202110266251 A CN 202110266251A CN 113008358 A CN113008358 A CN 113008358A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 27
- 238000000691 measurement method Methods 0.000 title claims description 5
- 230000007246 mechanism Effects 0.000 claims abstract description 48
- 238000000034 method Methods 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims description 18
- 230000003993 interaction Effects 0.000 claims description 5
- 238000005259 measurement Methods 0.000 claims description 2
- 230000000007 visual effect Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013590 bulk material Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H11/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
- G01H11/06—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H11/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
- G01H11/06—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means
- G01H11/08—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means using piezoelectric devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
Abstract
The invention relates to the technical field of port machinery, and discloses a vibration measuring method and a system for monitoring vibration of a bucket ship unloader, wherein the vibration measuring method for monitoring the vibration of the bucket ship unloader comprises the following steps: detecting and acquiring vibration data of the chain bucket lifting mechanism, and transmitting the vibration data to the control unit; the control unit uploads the vibration data to a database and generates a vibration curve along a time axis; presetting a vibration peak value; and when the numerical value on the vibration curve is larger than the vibration peak value, sending an alarm signal and suspending the operation of the bucket lifting mechanism. The invention controls the bucket lifting mechanism to work in a data mode, greatly ensures the monitoring accuracy of the bucket lifting mechanism, avoids accidents caused by human errors and ensures the safety of a working environment.
Description
Technical Field
The invention relates to the technical field of port machinery, in particular to a vibration measuring method and a vibration measuring system for monitoring vibration of a bucket ship unloader.
Background
The chain bucket ship unloader is a bulk material continuous ship unloader which utilizes a chain bucket to dig materials from a sea ship cabin and unload the materials to a wharf through an on-board conveyor system, and is widely applied due to the characteristics of high ship unloading efficiency, low energy consumption, stable work and easy automation realization of operation.
However, the bucket lifting mechanism of the existing bucket ship unloader needs to be operated by an operator, has high subjective activity, lacks real-time monitoring of quantitative data, is easy to cause accidents due to human errors, and has high potential safety hazards. Meanwhile, when the chain bucket lifting mechanism of the chain bucket ship unloader breaks down suddenly, the chain bucket ship unloader lacks a brake or interlocking device for the chain bucket lifting mechanism, and the probability of safety accidents is greatly increased.
Disclosure of Invention
The invention aims to provide a vibration measuring method for monitoring vibration of a chain bucket ship unloader, which solves the problem that a chain bucket lifting mechanism of the existing chain bucket ship unloader is lack of real-time monitoring. In addition, the invention also provides a vibration measuring system for monitoring the vibration of the bucket ship unloader.
In order to achieve the above object, the present invention provides a vibration measuring method for monitoring vibration of a bucket ship unloader, comprising the steps of:
detecting and acquiring vibration data of the chain bucket lifting mechanism, and transmitting the vibration data to the control unit;
the control unit uploads the vibration data to a database and generates a vibration curve along a time axis;
presetting a vibration peak value; and when the numerical value on the vibration curve is larger than the vibration peak value, sending an alarm signal and suspending the operation of the bucket lifting mechanism.
Further, the detecting and acquiring vibration data of the bucket elevator mechanism, and transmitting the vibration data to the control unit specifically include:
a plurality of vibration sensors electrically connected with the control unit are preset, and the plurality of vibration sensors are respectively installed on the peripheries of a plurality of transmission shafts of the chain bucket lifting mechanism so as to detect vibration data of the transmission shafts and respectively upload the vibration data to the control unit.
Further, still include: and the maintainer checks the vibration data and overhauls the chain bucket lifting mechanism.
Further, the alarm signal is an audible and visual alarm.
Further, the control unit is a PLC controller.
In order to achieve the above object, the present invention also provides a vibration measuring system for monitoring vibration of a bucket ship unloader, comprising:
the acquisition module is used for detecting and acquiring vibration data of the chain bucket lifting mechanism and transmitting the vibration data to the control unit;
the transmission module is used for uploading the vibration data to a database by the control unit and generating a vibration curve by the vibration data along a time axis;
and the alarm module is used for sending out an alarm signal and stopping the chain bucket lifting mechanism when the numerical value on the vibration curve is larger than the vibration peak value.
And further, the system also comprises a human-computer interaction module, wherein the human-computer interaction module is used for examining vibration data by a maintainer and overhauling the chain bucket lifting mechanism.
Compared with the prior art, the vibration measuring method and the vibration measuring system for monitoring the vibration of the chain bucket ship unloader have the beneficial effects that:
the vibration measuring method and the vibration measuring system for monitoring the vibration of the bucket ship unloader detect the vibration data of the bucket lifting mechanism in real time and transmit the vibration data to the control unit, and the control unit uploads the vibration data to the database and generates a vibration curve so as to be observed and analyzed by a maintainer and ensure that the bucket lifting mechanism works in a stable state. When the chain bucket lifting mechanism works abnormally, namely the vibration data of the chain bucket lifting mechanism is larger than a preset vibration peak value, an alarm signal is sent out and the work of the chain bucket lifting mechanism is halted at the moment, the chain bucket lifting mechanism is controlled to work in a datamation mode, the accuracy of monitoring the chain bucket lifting mechanism is greatly guaranteed, accidents caused by human errors are avoided, and the safety of a working environment is ensured.
Drawings
FIG. 1 is a flow chart of a vibration measurement method for monitoring vibration of a bucket ship unloader according to the present invention.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
As shown in fig. 1, the invention discloses a vibration measuring method for monitoring vibration of a bucket ship unloader, which comprises the following steps:
and S100, detecting and acquiring vibration data of the bucket lifting mechanism, and transmitting the vibration data to the control unit.
Specifically, a plurality of vibration sensors electrically connected to the control unit are preset, and the vibration sensors may be electric, piezoelectric, eddy current, inductive, capacitive, resistive, or photoelectric vibration sensors, which are not limited herein. Then install a plurality of vibration sensor to the periphery of a plurality of transmission shafts of chain bucket hoist mechanism respectively, can understand simultaneously that a plurality of vibration sensor can detect the vibration data of same transmission shaft to improve the precision that detects. Wherein the installation mode is adaptively installed according to the working principle of the vibration sensor, and the description is omitted here. Each vibration sensor detects the vibration data of each transmission shaft and uploads the vibration data to the control unit respectively. The control unit of this embodiment may be a PLC controller.
S200, the control unit uploads the vibration data to a database and generates a vibration curve along a time axis by the vibration data.
Preferably, the database is recorded in a list mode based on vibration data of a plurality of transmission shafts. The control unit respectively generates vibration curves of the plurality of transmission shafts according to the plurality of groups of vibration data so as to visually display the working state of the transmission shafts in real time.
S300, presetting a vibration peak value; and when the numerical value on the vibration curve is larger than the vibration peak value, sending an alarm signal and suspending the operation of the bucket lifting mechanism.
Wherein the operator sets the vibration peak value in advance. When the vibration data of one of the transmission shafts is larger than the vibration peak value, the control unit controls the alarm device to send an alarm signal, the alarm signal can be understood as sound and light alarm to remind an operator of knowing that the chain bucket lifting mechanism is abnormal, and meanwhile, the control unit controls a brake system of the chain bucket ship unloader to suspend the chain bucket lifting mechanism. The brake system is the prior general structure of the chain bucket ship unloader, and the structure and the principle of the brake system are omitted.
S400, examining and repairing the vibration data by a maintainer and repairing the chain bucket lifting mechanism.
The maintainer is through the vibration data of calling the database, and analysis and confirm which transmission shaft abnormal work appears to maintain or change this transmission shaft, greatly alleviateed the maintainer and confirmed which transmission shaft abnormal work burden appears, improved maintenance efficiency.
The invention further discloses a vibration measurement system for monitoring the vibration of the chain bucket ship unloader, which comprises an acquisition module, a transmission module, an alarm module and a human-computer interaction module. The acquisition module is used for detecting and acquiring vibration data of the chain bucket lifting mechanism and transmitting the vibration data to the control unit; the transmission module is used for the control unit to upload the vibration data to the database and generate a vibration curve along a time axis by the vibration data; the alarm module is used for sending an alarm signal and stopping the chain bucket lifting mechanism when the numerical value on the vibration curve is larger than the vibration peak value; and the man-machine interaction module is used for examining vibration data by a maintainer and overhauling the chain bucket lifting mechanism.
In summary, the embodiments of the present invention provide a vibration measurement method and system for monitoring vibration of a bucket ship unloader, which detect vibration data of a bucket lifting mechanism in real time and transmit the vibration data to a control unit, and the control unit uploads the vibration data to a database and generates a vibration curve, so that a maintainer can observe and analyze a working state of the bucket lifting mechanism, thereby ensuring that the bucket lifting mechanism works in a stable state. When the chain bucket lifting mechanism works abnormally, namely the vibration data of the chain bucket lifting mechanism is larger than a preset vibration peak value, an alarm signal is sent out and the work of the chain bucket lifting mechanism is halted at the moment, the chain bucket lifting mechanism is controlled to work in a datamation mode, the accuracy of monitoring the chain bucket lifting mechanism is greatly guaranteed, accidents caused by human errors are avoided, and the safety of a working environment is ensured.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (7)
1. A vibration measurement method for monitoring vibration of a bucket ship unloader is characterized by comprising the following steps:
detecting and acquiring vibration data of the chain bucket lifting mechanism, and transmitting the vibration data to the control unit;
the control unit uploads the vibration data to a database and generates a vibration curve along a time axis;
presetting a vibration peak value; and when the numerical value on the vibration curve is larger than the vibration peak value, sending an alarm signal and suspending the operation of the bucket lifting mechanism.
2. The vibration measuring method for monitoring the vibration of the bucket ship unloader of claim 1, wherein the detecting and acquiring the vibration data of the bucket lifting mechanism and transmitting the vibration data to the control unit are specifically:
a plurality of vibration sensors electrically connected with the control unit are preset, and the plurality of vibration sensors are respectively installed on the peripheries of a plurality of transmission shafts of the chain bucket lifting mechanism so as to detect vibration data of the transmission shafts and respectively upload the vibration data to the control unit.
3. A vibration measuring method for monitoring vibration of a bucket unloader as set forth in claim 1, further comprising: and the maintainer checks the vibration data and overhauls the chain bucket lifting mechanism.
4. A vibration measuring method for monitoring vibration of a bucket unloader according to any one of claims 1 to 3, wherein the alarm signal is an audible and visual alarm.
5. A vibration measuring method for monitoring vibration of a bucket unloader according to any one of claims 1 to 3, wherein the control unit is a PLC controller.
6. A system of measuring vibration for monitoring chain bucket ship unloader vibration, its characterized in that includes:
the acquisition module is used for detecting and acquiring vibration data of the chain bucket lifting mechanism and transmitting the vibration data to the control unit;
the transmission module is used for uploading the vibration data to a database by the control unit and generating a vibration curve by the vibration data along a time axis;
and the alarm module is used for sending out an alarm signal and stopping the chain bucket lifting mechanism when the numerical value on the vibration curve is larger than the vibration peak value.
7. The vibration measurement system for monitoring the vibration of the bucket unloader of claim 6, further comprising a human-machine interaction module for a service technician to review vibration data to service the bucket lift mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110266251.4A CN113008358A (en) | 2021-03-11 | 2021-03-11 | Vibration measurement method and system for monitoring vibration of chain bucket ship unloader |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110266251.4A CN113008358A (en) | 2021-03-11 | 2021-03-11 | Vibration measurement method and system for monitoring vibration of chain bucket ship unloader |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020083773A1 (en) * | 1999-09-28 | 2002-07-04 | Rockwell Science Center, Llc | Condition based monitoring by vibrational analysis |
| CN205264000U (en) * | 2015-12-16 | 2016-05-25 | 燕山大学 | Heavy long -range fault monitoring of harbour machinery hydraulic system and early warning system |
| CN205397359U (en) * | 2016-02-16 | 2016-07-27 | 葛洲坝嘉鱼水泥有限公司 | Lifting machine that has disconnected shaft detection device on cement manufacture line |
| CN111689256A (en) * | 2020-05-19 | 2020-09-22 | 神华粤电珠海港煤炭码头有限责任公司 | Automatic chain bucket ship unloader of control |
-
2021
- 2021-03-11 CN CN202110266251.4A patent/CN113008358A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020083773A1 (en) * | 1999-09-28 | 2002-07-04 | Rockwell Science Center, Llc | Condition based monitoring by vibrational analysis |
| CN205264000U (en) * | 2015-12-16 | 2016-05-25 | 燕山大学 | Heavy long -range fault monitoring of harbour machinery hydraulic system and early warning system |
| CN205397359U (en) * | 2016-02-16 | 2016-07-27 | 葛洲坝嘉鱼水泥有限公司 | Lifting machine that has disconnected shaft detection device on cement manufacture line |
| CN111689256A (en) * | 2020-05-19 | 2020-09-22 | 神华粤电珠海港煤炭码头有限责任公司 | Automatic chain bucket ship unloader of control |
Non-Patent Citations (1)
| Title |
|---|
| 李轲: ""链斗式连续卸船机动载安全及防风能力研究"", 《中国优秀硕士学位论文全文数据库 工程科技II辑》, no. 05, 15 May 2017 (2017-05-15), pages 034 - 367 * |
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