CN117206345A - Modular rolling mill health status monitoring system - Google Patents
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- CN117206345A CN117206345A CN202311237402.9A CN202311237402A CN117206345A CN 117206345 A CN117206345 A CN 117206345A CN 202311237402 A CN202311237402 A CN 202311237402A CN 117206345 A CN117206345 A CN 117206345A
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Abstract
The invention relates to a modularized rolling mill health status monitoring system, and belongs to the field of metallurgical mechanical equipment monitoring. The rolling mill comprises a rolling mill body, a weighing module and a monitoring module, wherein the rolling mill body consists of a working stand, a roller and a bearing, the weighing module is positioned below the working stand, the monitoring module is positioned at the roller and comprises a bottom plate, the bottom plate is connected with a collecting tank through a pressure sensor, the side wall of the bottom plate is connected with a connecting rod, the connecting rod is connected with the bottom of the working stand, a controller is connected with a signal of the pressure sensor, and the signal of the controller is connected with a display module; the monitoring module comprises a rotation sensor and a vibration sensor which are both connected inside the roller and are both connected with the controller through signals. According to the invention, the state of the roller bearing is monitored to obtain the digital signal, so that the health condition of the rolling mill can be detected, and meanwhile, various parameters are monitored, so that a basis is provided for predicting the residual service life of the rolling mill, and the resource and time cost are saved.
Description
Technical Field
The invention belongs to the technical field of metallurgical mechanical equipment monitoring, and relates to a modularized rolling mill health state monitoring system.
Background
A rolling mill is a machine apparatus for manufacturing and processing metallic materials, typically for flattening, heating, folding or cutting large pieces of metallic material into desired shapes and sizes. Different types of rolling mills have different designs and operating principles, which can be used to produce various metal products such as steel plates, steel pipes, steel strips, aluminium profiles, etc. The rolling mill usually runs continuously for a long time under heavy load, strong impact, variable rotation speed and high temperature environment, bears larger load, so that the roller bearing is extremely easy to damage, at present, a periodical maintenance method is mostly used for checking faults, if the interval time is shorter, manpower and material resources are wasted, productivity is influenced, and the service life is influenced due to excessive maintenance of equipment; if the interval time is longer, equipment performance is easily deteriorated and even safety accidents occur due to untimely maintenance, so that the monitoring of the health state of the rolling mill is very necessary.
The monitoring of the health state of the rolling mill means that all performance parameters of the rolling mill are monitored and analyzed in real time so as to evaluate the running condition of equipment. By using various sensors and data acquisition systems, the data collected from the various components of the mill can be aggregated and analyzed to identify possible malfunctions and degradation processes of the equipment and to signal early warning. The health state monitoring of the rolling mill can effectively improve the reliability and the production efficiency of equipment, reduce the maintenance cost and the downtime and prolong the service life of the equipment.
In the existing rolling mill state monitoring technology, the adopted sensor and the detected corresponding parameters can only detect whether the rolling mill is in fault currently, but cannot find the fault signs of the rolling mill in advance, and cannot maintain the rolling mill in time aiming at the faults, so that production interruption and emergency maintenance are caused, unnecessary downtime and maintenance cost are generated, and the production efficiency cannot be improved to the greatest extent.
Disclosure of Invention
Therefore, the present invention is directed to a modular rolling mill health status monitoring system, which is capable of representing status parameters of a rolling mill fault, monitoring the health status of a rolling mill bearing by collecting the parameters, and finding signs of the rolling mill fault in advance, so as to perform maintenance in time, and avoid production interruption caused by the fault from affecting production efficiency.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the modularized rolling mill health state monitoring system comprises a rolling mill body consisting of a working stand, a roller and bearings, wherein the bearings are sleeved at two ends of the roller; the weighing device also comprises a weighing module and a monitoring module; the weighing module comprises a bottom plate, the top of the bottom plate is fixedly connected with a pressure sensor, and the pressure sensor is electrically connected with the controller; the monitoring module comprises a rotary sensor, a vibration sensor and an ultrasonic imager which are respectively and electrically connected with the controller; the controller is electrically connected with a display module;
the pressure sensor is fixedly connected with a collecting tank at one end far away from the bottom plate, the side wall of the bottom plate is fixedly connected with a connecting rod, and the connecting rod is detachably connected with the bottom of the working machine seat; the pressure sensor is used for detecting the gravity of the chips collected by the collecting tank;
the rotary sensor and the vibration sensor are fixedly connected inside the roller, the rotary sensor is used for detecting the rotation track of the roller, and the vibration sensor is used for detecting the vibration of the bearing;
the ultrasonic imaging instrument is electrically connected with a conducting ring and an electric brush, the inner wall of the conducting ring is provided with a plurality of metal contact points, the conducting ring is sleeved on the outer side walls of the two ends of the roller, the conducting ring is in sliding connection with the roller, and the electric brush is fixed on the inner side wall of the bearing; the ultrasonic imager is used to detect an image of the roll surface.
Further, the control logic of the controller includes:
monitoring the rotation track of the roller through a rotation sensor, and simultaneously monitoring the vibration signal of the bearing through a vibration sensor;
if the rotation track detected by the rotation sensor does not accord with the initial preset value, monitoring the gravity of the chips in the collecting tank by the pressure sensor, and collecting the image of the surface of the roller by the ultrasonic imager; when the gravity of the scraps is larger than a preset gravity value or cracks exist on the surface image of the roller after image comparison, displaying the images through a display module;
if the vibration sensor detects that the vibration signals show different frequencies, the vibration analysis method is adopted to predict the residual service life, and the residual service life is displayed through the display module.
Further, the roller comprises a working roller and a supporting roller which are in clearance fit, the monitoring module further comprises strain gauges which are in signal connection with the controller, and the strain gauges are respectively and fixedly connected to the outer side wall of the working roller and the outer side wall of the supporting roller.
The method can detect the cyclic contact stress in the using process of the roller, so that the fatigue damage degree of the roller is calculated by matching with the analysis of the existing fatigue damage accumulation model, for example, the pressure between the working roller and the supporting roller is calculated and verified through a Stokes rolling pressure formula.
Further, the automatic alarm device also comprises an alarm module, wherein the alarm module comprises a buzzer and an indicator lamp, the buzzer and the indicator lamp are connected with the controller through signals, and the buzzer and the indicator lamp are embedded in the bottom of the working machine seat.
When the controller detects some abnormal conditions or needs to detect, signals are sent to the buzzer and the indicator lamp, so that the buzzer is controlled to make a sound, the indicator lamp displays corresponding colors, operators can be effectively assisted to distinguish and identify different alarm states through dual reminding effects of the colors and the sounds, the reliability of the alarm effect can be ensured in a noisy working environment, attention of a technical engineer or a maintenance person is timely brought, and damage to a rolling mill body or operation safety accidents are avoided.
Further, the outer side wall of the working machine base is fixedly connected with a temperature sensor, the temperature sensor is in signal connection with the controller, and the temperature sensor is used for early warning of abnormal temperature or abnormal temperature change speed.
According to the scheme, the temperature sensor is arranged on the working machine seat, the temperature of the working machine seat is monitored in real time through the controller, the temperature change condition of the working machine seat is monitored in real time, whether the temperature is normal or not and whether the temperature change speed is normal or not can be judged according to the temperature change condition, the stability and the health degree of the running state of the machine are reflected, and therefore maintenance adjustment is timely carried out, and the safety of equipment and personnel is effectively protected.
Further, the two sides of the working machine base are provided with heat dissipation and dust removal modules, each heat dissipation and dust removal module comprises a mounting frame, a motor is fixedly connected to the mounting frame, a fan blade is coaxially and fixedly connected to an output shaft of the motor, and the motor is electrically connected with the controller; when the temperature sensor detects that the temperature of the working machine seat rises to a preset temperature, the motor is controlled to drive the fan blades to rotate; when the temperature sensor detects that the temperature of the working machine seat rises to an abnormal temperature threshold value, the rotating speed of the motor is increased.
According to the scheme, the motor is controlled to drive the fan blades to rotate, the working machine seat is cooled, the motor rotating speed is increased when the temperature change speed of the working machine seat is abnormal, full-power or even overload operation is carried out for a short time, the purpose of emergency cooling is achieved by improving the cooling effect, safety accidents caused by overhigh temperature of the working machine seat are avoided, and dust adsorbed on the working machine seat can be blown off.
Further, the motor is detachably connected with a protective shell.
The motor is provided with a protective shell which is detachably connected with the outside of the motor, so that overhaul and maintenance work can be conveniently carried out; meanwhile, the motor can be protected from being damaged by external environmental factors, and the service life is prolonged; the protective shell can also avoid unnecessary injury accidents and ensure personal safety of operators.
The invention has the beneficial effects that:
according to the scheme, the fault condition of the rolling mill is more accurately and comprehensively represented by providing new representation parameters, whether the rolling mill is worn or not is represented by utilizing the rotation track of the rolling mill, the wear degree of the rolling mill is represented by utilizing the pressure of chips generated by the cooperation of the rolling mill and the pressure of the pressure sensor, and the comprehensive real-time monitoring of the fault condition of the rolling mill and the bearing is realized by matching with the technology of predicting the residual life through the bearing vibration signals, so that the comprehensiveness of fault prediction is improved, the misjudgment probability of predicting the fault in advance is reduced, the result of finding the fault in advance is more accurate and reliable, the application of finding the fault sign in advance which cannot be achieved in the prior art is realized, the maintenance is more timely, the unnecessary downtime and maintenance cost caused by production interruption and emergency maintenance are avoided, the production efficiency is prevented from being influenced, the maintenance efficiency is improved, and the maintenance cost is reduced.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objects and other advantages of the invention may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.
Drawings
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in the following preferred detail with reference to the accompanying drawings, in which:
FIG. 1 is a schematic block diagram of a modular mill health monitoring system embodiment of the invention.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be noted that the illustrations provided in the following embodiments merely illustrate the basic idea of the present invention by way of illustration, and the following embodiments and features in the embodiments may be combined with each other without conflict.
Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to limit the invention; for the purpose of better illustrating embodiments of the invention, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numbers in the drawings of embodiments of the invention correspond to the same or similar components; in the description of the present invention, it should be understood that, if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc., that indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but not for indicating or suggesting that the referred device or element must have a specific azimuth, be constructed and operated in a specific azimuth, so that the terms describing the positional relationship in the drawings are merely for exemplary illustration and should not be construed as limiting the present invention, and that the specific meaning of the above terms may be understood by those of ordinary skill in the art according to the specific circumstances.
Please refer to fig. 1, which is a modular rolling mill health status monitoring system, comprising a rolling mill body, a weighing module and a monitoring module, wherein the rolling mill body is composed of a working stand, rollers and bearings, the bearings are sleeved at two ends of the rollers, the weighing module is positioned below the working stand, the monitoring module is positioned at the rollers, and the bearings are composed of an inner ring, an outer ring, rolling bodies and a retainer.
The weighing module includes the bottom plate, bottom plate top fixed connection pressure sensor, and pressure sensor model selects for use in this embodiment: DS18B20, pressure sensor keep away from bottom plate one end fixedly connected with collecting vat, bottom plate lateral wall fixedly connected with connecting rod, and the connecting rod can be dismantled with the work frame bottom and be connected, and pressure sensor signal connection has the controller, and the controller model selects for use in this embodiment: and the programmable controller NX7-48ADR is connected with a display module in a signal manner.
The monitoring module includes a rotation sensor, a vibration sensor and an ultrasonic imaging instrument, and the type of the rotation sensor in the embodiment is selected as: the vibration sensor type in the embodiment is selected from the group consisting of hid-58-k-5000-24h-5-5 m: BL-2030, the ultrasonic imaging appearance model in this embodiment chooses for use: LE7800.
The rotary sensor and the vibration sensor are fixedly connected inside the roller, and are in signal connection with the controller. The outer side walls at two ends of the roller are respectively sleeved with a conducting ring, the conducting rings and the roller form a ball screw structure, the inner side wall of the bearing is fixedly connected with an electric brush, the conducting rings and the electric brush form a conducting slip ring structure, the conducting rings and the electric brush are electrically connected with an ultrasonic imaging instrument, and the ultrasonic imaging instrument is in signal connection with a controller. During the use, the collecting vat in the weighing module collects the piece that produces when rolling mill body work, and the gravity of piece produces pressure to the collecting vat, and pressure sensor carries out real-time supervision to pressure to with real-time supervision data transmission to the controller, when the pressure value reaches the default in the controller, it is serious to indicate rolling mill body work wearing and tearing, and the controller feeds back information to display module in order to remind operating personnel or maintainer.
The display module comprises a remote PC display and a system server, and the system server, the PC display and the controller are connected and transmitted by adopting an NB-LOT (network of things) technology. In the display module, a system server can be connected with a PC display and a controller through NB-LOT technology, so that remote transmission and sharing of data are realized. The NB-LOT technology has wide coverage range and higher penetrating power, can support application types such as data measurement, monitoring and remote control, can connect large-scale telephone numbers and has low bandwidth occupation ratio. This makes it possible to establish a reliable and stable communication connection between the controller and the display; secondly, the display module constructed based on the NB-LOT can realize remote monitoring and control without using a traditional data link or local area network connection mode, so that complex wiring and equipment configuration work are omitted, and meanwhile, the communication efficiency and stability are optimized; finally, the display module adopting the NB-LOT technology has the characteristics of low power consumption and low cost, can save energy and reduce cost for users, and provides better support in the aspects of real-time data monitoring, fault elimination and the like, thereby strengthening the reliability and the refinement level of equipment operation management.
When the roller rotates, the conducting ring can slide on the roller and continuously rubs with the surface of the electric brush, the ultrasonic imaging instrument is electrified and shoots the roller through the metal contact point in the conducting slip ring structure, an image generated by the ultrasonic imaging instrument is transmitted to the display module through the controller, and an operator or a maintainer monitors the health state of the roller through the image in the display module, so that the phenomenon of cracks and the like of the roller is avoided. The abnormal condition of the roller can be timely found out and early warned in advance by monitoring the health state of the roller in real time and checking whether the surface of the roller has cracks, drops and the like; the problems of quality accidents, invalid cost and the like caused by roller faults can be effectively avoided, and the stable production quality is ensured; the roller is monitored and evaluated in time, so that the service life of the roller can be effectively prolonged, and meanwhile, the maintenance cost and the replacement frequency are reduced; by means of image monitoring, the use frequency and maintenance period of the roller can be flexibly adjusted, and more accurate overhaul can be performed. Therefore, the risk of improper use or unsafe state of the roller can be effectively avoided while the use efficiency of the roller is ensured.
Meanwhile, a rotation sensor in the monitoring module monitors the rotation track of the roller in real time and transmits real-time monitoring data to the controller, and when the roller is complete, the rotation sensor monitors that the data of the rotation track is an initial preset value; the roll is worn when subjected to cyclic stress, and thus the rotation locus data monitored by the rotation sensor is changed.
Meanwhile, the vibration sensor monitors the vibration of the bearing in real time, and transmits real-time monitoring data to the controller, and the controller transmits the data to the display module. When the roller bearing starts to operate, the bearing operates in a healthy state in a normal operation stage, the performance is good, and a vibration signal shows stability; when the bearing runs for a period of time, the bearing is damaged to a certain extent due to reasons of poor lubrication, corrosion and the like, the performance of the bearing starts to gradually degrade along with long-term overload running and improper maintenance, vibration signals show different frequencies, and rich degradation characteristics are included. How to extract effective information from the original data, to perform feature recognition is the core content of state monitoring, and then to analyze the form of vibration data under different fault states.
The control logic of the controller comprises:
monitoring the rotation track of the roller through a rotation sensor, and simultaneously monitoring the vibration signal of the bearing through a vibration sensor;
if the rotation track detected by the rotation sensor does not accord with the initial preset value, monitoring the gravity of the chips in the collecting tank by the pressure sensor, and collecting the image of the surface of the roller by the ultrasonic imager; when the gravity of the scraps is larger than a preset gravity value or cracks exist on the surface image of the roller after image comparison, displaying the images through a display module;
if the vibration sensor detects that the vibration signals show different frequencies, the vibration analysis method is adopted to predict the residual service life, and the residual service life is displayed through the display module.
The fault characteristic frequency calculation formula is as follows:
bearing inner race failure frequency:
bearing outer race failure frequency:
bearing rolling element failure frequency:
bearing cage failure frequency:
wherein D in the formula is bearing pitch diameter (mm); d-rolling element diameter (mm); α—contact angle (°); f (f) r Bearing rotating frequency。
The invention adopts a vibration analysis method as a state monitoring method of the roller bearing, and obtains a digital signal to predict the residual service life. Bearing characteristic information of different frequencies contained in the vibration signals is comprehensively analyzed, and state indexes of the bearings are grasped, so that the prediction of the residual service life is facilitated.
In another embodiment, the system further comprises an alarm module, the alarm module comprises a buzzer and an indicator lamp, the buzzer and the indicator lamp are connected with the controller in a signal mode, and the buzzer and the indicator lamp are embedded in the bottom of the working machine base. When the data received by the controller is not within the preset data range, namely, the controller detects some abnormal conditions or needs to detect, signals are sent to the buzzer and the indicator lamp, so that the buzzer sounds, the indicator lamp displays corresponding colors, such as yellow for indicating attention, red for indicating danger and the like, and the operator or maintainer is reminded.
The buzzer and the indicator lamp alarm module are used, so that a technical engineer or a maintainer can timely pay attention to the situation of faults or abnormal conditions of the rolling mill body, and corresponding measures are taken to avoid the occurrence of damage or operation safety accidents of the rolling mill body; the buzzer and the indicator lamp have color and sound dual reminding effects, can effectively assist operators to distinguish and identify different alarm states, and can also guarantee the reliability of the warning effect in a noisy working environment.
As another embodiment, the difference from the above-described example is that: the roller comprises a working roller and a supporting roller, the working roller is in clearance fit with the supporting roller, strain gauges are fixedly connected to the outer side walls of the working roller and the supporting roller, and the strain gauges are in signal connection with a controller.
The specific implementation process is as follows: when the working roll and the supporting roll work and run, the strain gauge monitors the pressure applied between the working roll and the supporting roll, converts the physical quantity into an electric signal, and converts the electric signal into a digital signal to be output through the controller for subsequent data processing and analysis.
The precondition of analyzing and calculating the roller contact fatigue damage by using the driving fatigue damage accumulation model is that the fatigue damage degree of any point of the roller contact area can be obtained through calculation. The fatigue damage of any point of the roller contact area is calculated, and firstly, the contact stress of any point in the roller section is required to be obtained; secondly, a four-roller system working roller and a supporting roller are required to be subjected to multi-stage loading, and an equivalent damage rule and a residual life model are used as preconditions; and finally, calculating the damage degree under the condition of multistage loading by using the damage model. And finally, the damage degree of any point of the contact area of the backup roll and the working roll in the rolling mill body can be obtained.
In the invention, the Stokes model is used for calculating and verifying the pressure between the working roll and the supporting roll, and the specific formula is as follows:
wherein:is the average unit pressure; τ J Is the front tension; τ b Is the back tension.
In another embodiment, the outer side wall of the working machine base is fixedly connected with a temperature sensor, and the model of the temperature sensor in the embodiment is selected from: and the JTW-ZCD-G3N, and the temperature sensor is connected with the controller through signals. When the rolling mill body works, the temperature sensor monitors the real-time temperature of the working stand and transmits real-time monitoring data to the controller, and the controller reminds operators or maintenance personnel through the alarm module, so that the situation that the temperature is too high or the temperature change is abnormally fast, the machine is broken down or damaged, and potential safety hazards are caused to the operators even is avoided.
In addition, the work frame both sides are equipped with the heat dissipation module, and the heat dissipation module includes the mounting bracket, fixedly connected with motor on the mounting bracket, the coaxial fixedly connected with flabellum of motor output shaft. The motor drives the fan blades to rotate, so that the ventilation of the outside air of the working machine seat can be increased, the rise of the outside temperature of the shell is reduced, the heat dissipation effect on the working machine seat is achieved, and dust adsorbed on the working machine seat can be blown off. The motor is detachably connected with a protective shell, so that overhaul and maintenance work can be conveniently performed; meanwhile, the motor can be protected from being damaged by external environmental factors, and the service life is prolonged; the protective shell can also avoid unnecessary injury accidents and ensure personal safety of operators.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the present invention, which is intended to be covered by the claims of the present invention.
Claims (7)
1. The modularized rolling mill health state monitoring system comprises a rolling mill body consisting of a working stand, a roller and bearings, wherein the bearings are sleeved at two ends of the roller; the method is characterized in that: the weighing device also comprises a weighing module and a monitoring module; the weighing module comprises a bottom plate, the top of the bottom plate is fixedly connected with a pressure sensor, and the pressure sensor is electrically connected with the controller; the monitoring module comprises a rotary sensor, a vibration sensor and an ultrasonic imager which are respectively and electrically connected with the controller; the controller is electrically connected with a display module;
the pressure sensor is fixedly connected with a collecting tank at one end far away from the bottom plate, the side wall of the bottom plate is fixedly connected with a connecting rod, and the connecting rod is detachably connected with the bottom of the working machine seat; the pressure sensor is used for detecting the gravity of the chips collected by the collecting tank;
the rotary sensor and the vibration sensor are fixedly connected inside the roller, the rotary sensor is used for detecting the rotation track of the roller, and the vibration sensor is used for detecting the vibration of the bearing;
the ultrasonic imaging instrument is electrically connected with a conducting ring and an electric brush, the inner wall of the conducting ring is provided with a plurality of metal contact points, the conducting ring is sleeved on the outer side walls of the two ends of the roller, the conducting ring is in sliding connection with the roller, and the electric brush is fixed on the inner side wall of the bearing; the ultrasonic imager is used to detect an image of the roll surface.
2. The modular mill health monitoring system of claim 1, wherein: the control logic of the controller comprises:
monitoring the rotation track of the roller through a rotation sensor, and simultaneously monitoring the vibration signal of the bearing through a vibration sensor;
if the rotation track detected by the rotation sensor does not accord with the initial preset value, monitoring the gravity of the chips in the collecting tank by the pressure sensor, and collecting the image of the surface of the roller by the ultrasonic imager; when the gravity of the scraps is larger than a preset gravity value or cracks exist on the surface image of the roller after image comparison, displaying the images through a display module;
if the vibration sensor detects that the vibration signals show different frequencies, the vibration analysis method is adopted to predict the residual service life, and the residual service life is displayed through the display module.
3. The modular mill health monitoring system of claim 1, wherein: the roller comprises a working roller and a supporting roller which are in clearance fit, the monitoring module further comprises strain gauges which are in signal connection with the controller, and the strain gauges are respectively and fixedly connected to the outer side wall of the working roller and the outer side wall of the supporting roller.
4. The modular mill health monitoring system of claim 1, wherein: the alarm module comprises a buzzer and an indicator lamp, and the buzzer and the indicator lamp are embedded in the bottom of the working machine seat; the buzzer and the indicator lamp are connected with the controller in a signal manner, and the controller controls the buzzer and the indicator lamp to control sound, color and flicker frequency according to different fault types.
5. The modular mill health monitoring system of claim 4, wherein: the working machine base outer side wall is fixedly connected with a temperature sensor, the temperature sensor is in signal connection with the controller, and the temperature sensor is used for early warning of abnormal temperature or abnormal temperature change speed.
6. The modular mill health monitoring system of claim 5, wherein: the two sides of the working machine base are provided with heat dissipation and dust removal modules, each heat dissipation and dust removal module comprises a mounting frame, a motor is fixedly connected to the mounting frame, a fan blade is coaxially and fixedly connected to an output shaft of the motor, and the motor is electrically connected with the controller; when the temperature sensor detects that the temperature of the working machine seat rises to a preset temperature, the motor is controlled to drive the fan blades to rotate; when the temperature sensor detects that the temperature of the working machine seat rises to an abnormal temperature threshold value, the rotating speed of the motor is increased.
7. The modular mill health monitoring system of claim 6, wherein: the motor is detachably connected with a protective shell.
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| CN118225287A (en) * | 2024-05-24 | 2024-06-21 | 燕山大学 | Rolling force sensor Wen Zhen compound monitoring method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118225287A (en) * | 2024-05-24 | 2024-06-21 | 燕山大学 | Rolling force sensor Wen Zhen compound monitoring method |
| CN118225287B (en) * | 2024-05-24 | 2024-07-19 | 燕山大学 | Rolling force sensor Wen Zhen compound monitoring method |
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