CN217376137U - Device for monitoring breakage of belt pulley - Google Patents
Device for monitoring breakage of belt pulley Download PDFInfo
- Publication number
- CN217376137U CN217376137U CN202220683170.4U CN202220683170U CN217376137U CN 217376137 U CN217376137 U CN 217376137U CN 202220683170 U CN202220683170 U CN 202220683170U CN 217376137 U CN217376137 U CN 217376137U
- Authority
- CN
- China
- Prior art keywords
- hall switch
- belt
- monitoring
- sensor mounting
- mounting bracket
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Control Of Conveyors (AREA)
Abstract
The application discloses a device for monitoring belt pulley fracture includes: the sensor comprises a magnet, a Hall switch, a sensor mounting bracket and a control assembly; the magnet is fixedly arranged on the side face of the belt driven wheel and can synchronously rotate along with the belt driven wheel; the Hall switch is fixedly arranged on the sensor mounting bracket, and the monitoring end of the Hall switch is positioned on the outer side of the belt driven wheel and used for generating a pulse signal when the magnet approaches; the control assembly is electrically connected with the Hall switch and used for recording the number of pulse signals in unit time, and when the number of the pulse signals is lower than a set value, a fracture alarm is carried out. The problem that monitoring the fan belt pulley fracture condition in the correlation technique can not be timely and accurate is solved.
Description
Technical Field
The application relates to the technical field of air supply systems, in particular to a device for monitoring breakage of a belt pulley.
Background
The air supply and exhaust fan system is widely applied to connecting a motor and an impeller by a belt, the belt can be broken due to overload, aging or insufficient quality in daily use, and other belts can be broken successively due to increased tension after the first belt is broken even when a plurality of belts are used for driving the impeller, so that the impeller stops rotating, and air supply and exhaust are stopped. Therefore, if the belt is broken, the belt can not be treated in time, which affects the stable operation of the system and even endangers the personal safety (such as an exhaust system of toxic and harmful gas).
The existing protection systems (thermal relays and air switches) can only act under the conditions of overload, short circuit and the like, the rotating speed feedback of the frequency converter can not react to the belt breakage fault, because the motor still runs, the monitoring system still can display that the fan is working normally, and operators often wait until relevant accidents happen and the consequence is caused and then can find the fault. Although the breakage of the belt can be found by regular inspection by the operator, such inspection is not instantaneous.
SUMMERY OF THE UTILITY MODEL
The main aim at of this application provides a device for monitoring belt pulley fracture to solve the problem that can't be timely among the correlation technique, accurate monitor the fan belt pulley fracture condition.
In order to achieve the above object, the present application provides an apparatus for monitoring breakage of a pulley, the apparatus for monitoring breakage of a pulley comprising: the sensor comprises a magnet, a Hall switch, a sensor mounting bracket and a control assembly; wherein the content of the first and second substances,
the magnet is fixedly arranged on the side surface of the driven belt wheel and can synchronously rotate along with the driven belt wheel; the Hall switch is fixedly arranged on the sensor mounting bracket, and the monitoring end of the Hall switch is positioned on the outer side of the belt driven wheel and used for generating a pulse signal when the magnet approaches;
the control assembly is electrically connected with the Hall switch and used for recording the number of pulse signals in unit time, and when the number of the pulse signals is lower than a set value, a fracture alarm is carried out.
Further, the control assembly comprises a control box, a controller and an upper computer;
the controller is arranged in the control box and is electrically connected with the Hall switch, and the upper computer is in remote communication connection with the controller and is used for monitoring the pulse signal quantity of the belt driven wheel in unit time at the far end;
the control box is provided with a digital display meter and a three-color audible and visual alarm which are electrically connected with the controller, and the digital display meter is used for displaying the number of pulse signals in unit time.
Further, the sensor mounting bracket is arranged on the fan belt protective cover or on the belt motor base.
Furthermore, the sensor mounting bracket is provided with a connecting screw rod, the connecting screw rod is arranged on the sensor mounting bracket, the first end of the connecting screw rod is in threaded connection with the sensor mounting bracket, and the second end of the connecting screw rod is fixedly connected with the Hall switch, so that the relative position between the Hall switch and the magnet can be adjusted.
Furthermore, the connecting screw rod comprises an X-axis screw rod and a Y-axis screw rod, wherein the axes of the X-axis screw rod and the Y-axis screw rod are positioned on the same plane;
the first end of the X-axis screw is in threaded connection with the sensor mounting support, the second end of the X-axis screw is in threaded connection with the first end of the Y-axis screw, and the second end of the Y-axis screw is fixedly connected with the Hall switch.
Furthermore, the Hall switch is fixedly connected to the second end of the Y-axis screw through a fastener.
Further, a bolt fixing hole is formed in the sensor mounting support, and the sensor mounting support is fixed to the fan belt protective cover through the bolt fixing hole.
In the embodiment of the application, the magnet, the Hall switch, the sensor mounting bracket and the control assembly are arranged; the magnet is fixedly arranged on the side surface of the belt driven wheel and can synchronously rotate along with the belt driven wheel; the Hall switch is fixedly arranged on the sensor mounting bracket, and the monitoring end of the Hall switch is positioned on the outer side of the belt driven wheel and used for generating a pulse signal when the magnet approaches; the control component is electrically connected with the Hall switch and used for recording the number of pulse signals in unit time, when the number of the pulse signals is lower than a set value, a fracture alarm is carried out, so that when the magnet rotates for one circle along with the belt driven wheel driven by the belt, the Hall switch outputs a pulse signal, the pulse signal is transmitted to the control component, the control component records the number of the pulse signals (namely the rotating speed of the driven wheel of the belt) in unit time, when the number of the pulse signals in unit time acquired by the control component is obviously lower than a set value, namely the purpose of indicating the belt breakage, thereby realizing the technical effects of accurately and timely monitoring the running condition of the fan belt, quickly responding and feeding back once the belt breakage occurs, and then the problem that the fan belt pulley fracture condition cannot be timely and accurately monitored in the related technology is solved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and the description of the exemplary embodiments of the present application are provided for explaining the present application and do not constitute an undue limitation on the present application. In the drawings:
FIG. 1 is a schematic structural diagram according to an embodiment of the present application;
FIG. 2 is another schematic structural diagram according to an embodiment of the present application;
FIG. 3 is a schematic diagram of the construction of a belt driven pulley according to an embodiment of the present application;
FIG. 4 is a schematic side view of a belt driven pulley according to an embodiment of the present application;
the device comprises a controller 1, a three-color audible and visual alarm 2, a digital display meter 3, a Hall switch 4, a fastener 5, a sensor mounting bracket 6, a bolt fixing hole 7, a magnet 9, a belt 10, a belt 12, a driven wheel, a fan belt protective cover 13, a control assembly 14 and an upper computer 15.
Detailed Description
In order to make the technical solutions of the present application better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below 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.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used.
In this application, the terms "upper", "lower", "inside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as the case may be.
Furthermore, the terms "disposed," "provided," "connected," "secured," and the like are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In addition, the term "plurality" shall mean two as well as more than two.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
The existing protection system (thermal relay, air switch) can only act under the conditions of overload, short circuit and the like, the rotating speed feedback of the frequency converter can not react to the belt breakage fault, because the motor still runs, the monitoring system still can display that the fan is working normally, and operators can often find the fault after related accidents happen and consequences occur. Although the belt breakage can be detected by periodic inspection by the operator, such inspection is not instantaneous
To solve the above problem, as shown in fig. 1 to 4, an embodiment of the present application provides an apparatus for monitoring breakage of a pulley, the apparatus for monitoring breakage of a pulley of a belt 10 including: the sensor comprises a magnet 9, a Hall switch 4, a sensor mounting bracket 6 and a control component 14; wherein the content of the first and second substances,
the magnet 9 is fixedly arranged on the side surface of the belt driven wheel 12 and can synchronously rotate along with the belt driven wheel 12; the Hall switch 4 is fixedly arranged on the sensor mounting bracket 6, and the monitoring end of the Hall switch 4 is positioned on the outer side of the driven belt wheel 12 and is used for generating a pulse signal when the magnet 9 approaches;
the control component 14 is electrically connected with the hall switch 4 and used for recording the number of pulse signals in unit time and giving a fracture alarm when the number of the pulse signals is lower than a set value.
In this embodiment, the device mainly comprises magnet 9, hall switch 4 and control assembly 14, and wherein magnet 9 adopts the strong magnet of permanent magnetism, can adsorb and fix in the side of belt driven wheel 12, and in order to further improve structural stability, magnet 9 also can fix on belt driven wheel 12 through the mounting, and the mounting can follow driving wheel 12 with the belt through bolted connection and compress tightly magnet 9. The hall switch 4 is arranged on the sensor mounting bracket 6 and keeps a certain distance with the belt driven wheel 12, namely, the hall switch 4 does not influence the normal rotation of the belt driven wheel 12. The control component 14 is connected with the hall switch 4 and is used for receiving the signal transmitted by the hall switch 4. When the belt driven wheel 12 rotates once, the magnet 9 on the belt driven wheel 12 approaches the hall switch 4 once, and the hall switch 4 detects the change of the magnetic field to output a pulse signal, and transmits the pulse signal to the control component 14, and the pulse signal is recorded by the control component 14. Under the normal working condition, the rotating speed of the belt driven wheel 12 in unit time is the same as the output rotating speed of the motor, namely the hall switch 4 can generate the number of pulse signals with the rotating speed of the belt driven wheel 12 in unit time, at this time, the control component 14 can record the number of times of the pulse signals acquired in unit time and can directly convert the number of times into the rotating speed of the belt driven wheel 12.
When the belt 10 is broken, the belt driven pulley 12 is not driven by the belt 10 to rotate any more, the rotation speed of the belt driven pulley 12 is gradually reduced, and the number of pulse signals generated by the hall switch 4 in a unit time is reduced accordingly. When the number of pulse signals recorded by the control component 14 in unit time is less than a set value, the belt 10 is broken, and at this time, the alarm device is controlled to give an alarm to remind workers of the broken belt 10.
This embodiment has reached and has been followed driving wheel 12 at magnet 9 and received belt 10 drive when rotatory round along with the belt, hall switch 4 will export a pulse signal, give control assembly 14 with pulse signal transmission, by control assembly 14 record pulse signal quantity under the unit interval (be the belt from the rotational speed of driving wheel 12), when pulse signal quantity under the unit interval that control assembly 14 acquireed is obviously less than the setting value, show that belt 10 takes place cracked purpose promptly, thereby realized carrying out accurate and timely monitoring to the behavior of fan belt 10, in case the technical effect of response and feedback can be quick when belt 10 breaks, and then solved in the correlation technique in time, accurate the problem of monitoring fan belt 10 wheel fracture condition.
Further, the control assembly 14 comprises a control box, a controller 1 and an upper computer 15;
the controller 1 is arranged in the control box, the controller 1 is electrically connected with the Hall switch 4, and the upper computer 15 is in remote communication connection with the controller 1 and is used for monitoring the pulse signal quantity of the belt driven wheel 12 in unit time at a far end;
be provided with on the control box with controller 1 electric connection digital display table 3 and three-colour audible-visual annunciator 2, digital display table 3 is used for showing pulse signal quantity under the unit interval.
In this embodiment, the control box is as the installation basis of controller 1, digital display table 3 and three-colour audible-visual annunciator 2, and the mountable of controller 1 is in the inside of control box, and the mountable of digital display table 3 is in the outside of control box, and the staff of being convenient for directly watches, and the mountable of three-colour audible-visual annunciator 2 is in the upper end of control box, is convenient for remind the staff.
Further, the sensor mounting bracket 6 is arranged on a fan belt protective cover 13 or on a motor base of the belt 10.
In order to keep the distance between the hall switch 4 and the magnet 9 within a range capable of accurately detecting, the device further comprises a connecting screw rod arranged on the sensor mounting bracket 6, wherein the first end of the connecting screw rod is in threaded connection with the sensor mounting bracket 6, and the second end of the connecting screw rod is fixedly connected with the hall switch 4, so that the relative position between the hall switch 4 and the magnet 9 can be adjusted. The installation position of the hall switch 4 can be adjusted by screwing the connection screw.
In order to adjust the position of the hall switch 4 more flexibly, the connecting screw rod in the embodiment comprises an X-axis screw rod and a Y-axis screw rod which are positioned on the same plane;
the first end of the X-axis screw is in threaded connection with the sensor mounting support 6, the second end of the X-axis screw is in threaded connection with the first end of the Y-axis screw, and the second end of the Y-axis screw is fixedly connected with the Hall switch 4.
The position of the hall switch 4 in two perpendicular directions on a plane can be adjusted by the X-axis screw and the Y-axis screw, so that the hall switch 4 can be located at the most appropriate detection position. The hall switch 4 is fixedly connected to the second end of the Y-axis screw through a fastener 5. The sensor mounting bracket 6 is provided with a bolt fixing hole 7, and the sensor mounting bracket 6 is fixed on the fan belt protective cover 13 through the bolt fixing hole 7.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (7)
1. An apparatus for monitoring breakage of a pulley, comprising: the sensor comprises a magnet, a Hall switch, a sensor mounting bracket and a control assembly; wherein the content of the first and second substances,
the magnet is fixedly arranged on the side surface of the driven belt wheel and can synchronously rotate along with the driven belt wheel; the Hall switch is fixedly arranged on the sensor mounting bracket, and the monitoring end of the Hall switch is positioned on the outer side of the belt driven wheel and used for generating a pulse signal when the magnet approaches;
the control assembly is electrically connected with the Hall switch and used for recording the number of pulse signals in unit time, and when the number of the pulse signals is lower than a set value, a fracture alarm is carried out.
2. The device for monitoring breakage of a pulley according to claim 1, wherein the control assembly comprises a control box, a controller and an upper computer;
the controller is arranged in the control box and electrically connected with the Hall switch, and the upper computer is in remote communication connection with the controller and is used for monitoring the pulse signal quantity of the belt driven wheel in unit time at the far end;
be provided with on the control box with controller electric connection digital display table and three-colour audible-visual annunciator, the digital display table is used for showing pulse signal quantity under the unit interval.
3. A device for monitoring pulley breakage as claimed in claim 2 wherein the sensor mounting bracket is provided on a fan belt guard or on a belt motor base.
4. The device for monitoring the breakage of the belt pulley according to claim 3, further comprising a connecting screw rod arranged on the sensor mounting bracket, wherein a first end of the connecting screw rod is in threaded connection with the sensor mounting bracket, and a second end of the connecting screw rod is fixedly connected with the Hall switch, so that the relative position between the Hall switch and the magnet can be adjusted.
5. The device for monitoring breakage of a pulley according to claim 4, wherein the connection screw includes an X-axis screw and a Y-axis screw whose axes are located on the same plane;
the first end of the X-axis screw is in threaded connection with the sensor mounting support, the second end of the X-axis screw is in threaded connection with the first end of the Y-axis screw, and the second end of the Y-axis screw is fixedly connected with the Hall switch.
6. The device for monitoring breakage of a pulley as set forth in claim 5, wherein said Hall switch is fixedly attached to said second end of said Y-axis screw by a fastener.
7. The device for monitoring the breakage of the belt pulley according to claim 6, wherein the sensor mounting bracket is provided with a bolt fixing hole, and the sensor mounting bracket is fixed on the fan belt protective cover through the bolt fixing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220683170.4U CN217376137U (en) | 2022-03-23 | 2022-03-23 | Device for monitoring breakage of belt pulley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220683170.4U CN217376137U (en) | 2022-03-23 | 2022-03-23 | Device for monitoring breakage of belt pulley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217376137U true CN217376137U (en) | 2022-09-06 |
Family
ID=83105447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220683170.4U Active CN217376137U (en) | 2022-03-23 | 2022-03-23 | Device for monitoring breakage of belt pulley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217376137U (en) |
-
2022
- 2022-03-23 CN CN202220683170.4U patent/CN217376137U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2201334B1 (en) | Compact, self-contained condition monitoring device | |
| CN111289897B (en) | Motor monitoring system | |
| CN212058652U (en) | Power transformer vibration detection device | |
| CN217376137U (en) | Device for monitoring breakage of belt pulley | |
| CN114325385A (en) | Motor rack broken shaft detection method | |
| CN203798814U (en) | Motor flywheel speed measuring mechanism | |
| CN202350908U (en) | Intelligent monitor for vibration and temperature | |
| CN202735485U (en) | Motor operation detecting device | |
| CN202351257U (en) | Wall-hung type intelligent tachometer in case of reverse rotating speed | |
| CN115807784A (en) | Method and device for monitoring faults of belt transmission fan of closed cooling tower | |
| CN212228253U (en) | Temperature detection device for large-scale equipment bearing | |
| CN215009960U (en) | Reation kettle motor temperature and vibration alarm device | |
| CN214585531U (en) | Wind power measuring device for power maintenance | |
| CN220780126U (en) | Stirring shaft rotating speed detection device | |
| JPH05191909A (en) | Monitoring equipment for vibration of overhead line | |
| CN202350915U (en) | Vibration transmitter | |
| CN211034157U (en) | Contrast type speed measurement controller | |
| CN214843399U (en) | Ionospheric scintillation real-time monitoring and early warning device based on GNSS | |
| CN202350728U (en) | Monitor for axial displacement | |
| CN214610278U (en) | Glass substrate conveyer, monitoring system and particle detection equipment | |
| CN112014056A (en) | Three-dimensional impact recorder and use method thereof | |
| CN109909052A (en) | A kind of jaw crusher rotation speed monitoring system | |
| CN219552858U (en) | Distribution box operation monitoring device | |
| CN216979286U (en) | Detector for preventing high-voltage power overhead line from being damaged | |
| CN216207473U (en) | Watch key damping detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |