CN216763279U - Scrape trigger fault detection device - Google Patents
Scrape trigger fault detection device Download PDFInfo
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- CN216763279U CN216763279U CN202123254539.4U CN202123254539U CN216763279U CN 216763279 U CN216763279 U CN 216763279U CN 202123254539 U CN202123254539 U CN 202123254539U CN 216763279 U CN216763279 U CN 216763279U
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Abstract
The utility model provides a scraper fault detection device which comprises a scraper, a fixing frame, an impact frame, a first infrared sensor, a second infrared sensor, a PLC (programmable logic controller), a time relay and an alarm, wherein the fixing frame is arranged on the scraper in a crossing manner, the middle part of the fixing frame is horizontally and fixedly connected with the sensor mounting frame, the first infrared sensor and the second infrared sensor are respectively arranged at two ends of the sensor mounting frame, the impact frame is rotatably connected below the middle part of the fixing frame through a shaft, two ends of the impact frame are connected with a base of the fixing frame through springs, a plurality of flexible impact pieces are connected at the lower part of the impact frame, induction marks corresponding to the first infrared sensor are arranged on the impact frame, the first infrared sensor is connected with the input of the PLC, the output of the PLC is connected with the alarm, the second infrared sensor is connected with the input of the time relay, and the output of the time relay is connected with the input of the PLC, the second infrared sensor is used for sensing a scraper of the scraper conveyor. The utility model can find tiny accidents in time and early warn in time.
Description
Technical Field
The utility model belongs to the technical field of scraper machines, and particularly relates to a fault detection device for a scraper machine.
Background
The raw coal of the coal preparation plant contains more sundry ironware such as underground penetrating rods, drill bits and the like, when the coal briquette is conveyed through the scraper conveyor, the scraper blade and the machine head wheel are easily blocked by the sundries, the ironware or the larger coal briquette, so that the scraper conveyor is inclined and adjusted, the scraper blade and the chain are broken when the coal briquette is serious, and the scraper blade and the chain are all buried in the coal briquette in the transportation process, so that the maintenance work is also complex.
The traditional scraper conveyor protection device has motor protection and chain breakage protection. The motor protection adopts an E3 motor comprehensive protector to realize faults of overcurrent, overload, phase loss, underload and the like, and the chain breakage protection judges whether the chain is broken or not by detecting the rotation speed of the tail of the scraper conveyor. Both the two protections realize alarm after an accident occurs, and serious electromechanical accidents such as a chain, a shovel turning machine head and the like are often caused during alarm.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a scraper machine fault detection device which can quickly find and timely give an early warning when tiny accidents such as scraper inclination, scraper breakage and the like caused by chain dropping and chain breakage occur in the operation process of a scraper, so that large electromechanical accidents are avoided.
The utility model provides a scraper machine fault detection device which comprises a scraper machine, a fixed frame, an impact frame, a first infrared sensor, a second infrared sensor, a PLC (programmable logic controller), a time relay and an alarm, wherein the fixed frame is arranged on the scraper machine in a crossing manner, the middle part of the fixed frame is horizontally and fixedly connected with a sensor mounting frame, the sensor mounting frame is vertically arranged with the fixed frame, two ends of the sensor mounting frame extend out of the fixed frame, the first infrared sensor and the second infrared sensor are respectively arranged at two ends of the sensor mounting frame, the impact frame is rotationally connected below the middle part of the fixed frame through a shaft, two ends of the impact frame are connected with a base of the fixed frame through springs, the lower part of the impact frame is connected with a plurality of flexible impact pieces which are in contact with a scraper of the scraper machine, the impact frame is provided with induction marks corresponding to the first infrared sensor, and the first infrared sensor is in input connection with the PLC, the PLC controller output is connected with the alarm, the second infrared sensor is connected with the time relay input, the time relay output is connected with the PLC controller input, and the second infrared sensor is used for sensing a scraper of the scraper conveyor.
Further, the flexible impact member is a belt.
Furthermore, the surface of the induction mark is bright, the induction mark is a thin steel sheet, and the thin steel sheet is vertically arranged on the impact frame and is parallel to the sensor mounting frame.
Furthermore, the alarm is a voice alarm.
Furthermore, horizontal supports are arranged at two ends of the fixing frame and connected with the scraper machine frame.
The utility model has the following beneficial effects: (1) when the scraping plate is in parallel contact with the impact piece, the impact frame is always parallel to the fixed frame under the action of the spring, and the first infrared sensor can receive infrared rays reflected by the induction mark all the time. If take place to jump chain or oblique chain time, the scraper blade slope can lead to striking frame to take place to deflect when contacting with the striking piece, responds to the mark skew simultaneously for first infrared sensor probe can not receive the infrared ray of response mark reflection, and PLC controller signals at this moment, and the alarm begins work, reminds the staff in time to handle the trouble. (2) Carry out direct monitoring to the scraper blade through installing time relay and second sensor additional, in case the scraper blade fracture back, the signal interval that the second sensor feedbacks time relay will prolong. At the moment, the PLC controller can send out a signal, and the alarm starts to work to remind a worker to process the fault in time. (3) According to the utility model, the infrared sensor is used for sensing the state of the scraper, and the infrared sensor has a small size, so that the installation is simple and convenient, and the infrared sensor has a directional target, has high detection precision, and can accurately detect a tiny accident in time, thereby preventing a serious electromechanical accident from occurring.
Drawings
FIG. 1 is a perspective view of the scraper failure detection device of the present invention.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the following explains the present solution by way of specific embodiments and with reference to the accompanying drawings. It is to be understood that the described embodiments are merely a few embodiments of the utility model, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, shall fall within the protection scope of the present invention.
As shown in figure 1, the scraper machine fault detection device comprises a scraper machine, a fixed frame 1, an impact frame 2, a first infrared sensor 5, a second infrared sensor 6, a PLC (programmable logic controller), a time relay and an alarm.
Mount 1 spanes and installs on scraping the trigger, and 1 both ends of mount are provided with horizontal stand 8, are connected with scraping the trigger frame to guarantee that mount 1 can not topple over scraping in the trigger transportation. The sensor mounting bracket is horizontally and fixedly connected to the middle of the fixing frame 1, the sensor mounting bracket is perpendicular to the fixing frame, the fixing frame 1 extends from two ends of the fixing frame, and the first infrared sensor 5 and the second infrared sensor 6 are respectively mounted at two ends of the sensor mounting bracket.
Striking frame 2 passes through axle swivelling joint in 1 middle part below of mount, and both ends are passed through spring 3 and are connected with the mount base, and 2 sub-unit connections of striking frame have a plurality of flexible striking piece 4, with scrape trigger scraper contact, flexible striking piece forms through retrieving old and useless belt processing in this embodiment, is favorable to practicing thrift the cost. The impact frame 2 is provided with an induction mark corresponding to the first infrared sensor 5, and the surface of the induction mark is bright and can reflect infrared rays emitted by the infrared sensor. The sensing mark in this embodiment is a thin steel sheet, which is vertically mounted on the impact frame and arranged parallel to the sensor mounting frame.
First infrared sensor 5 and PLC controller input connection, PLC controller output and alarm are connected, and in this embodiment, the alarm is audio alert ware. And the second infrared sensor 6 is in input connection with a time relay, the output of the time relay is in input connection with the PLC, and the second infrared sensor is used for sensing a scraper of the scraper conveyor.
The working principle is that when the scraping plate is in parallel contact with the flexible impact piece 4, the impact frame 2 and the fixed frame 1 are always kept parallel under the action force of the spring 3, and the first infrared sensor 5 can always receive infrared light reflected by the induction mark 7. When taking place to jump chain or oblique chain accident, the scraper blade slope, when contacting with flexible striking piece 4, can lead to striking frame 2 to take place to deflect, response mark 7 skew simultaneously for the infrared light of response mark 7 reflection can not be received to first infrared sensor, and at this moment the PLC controller signals, and the alarm begins work, reminds the staff in time to handle the trouble.
The second sensor 6 receives infrared light reflected by the scrapers and transmits the infrared light to the time relay as signals, the distance between each scraper is fixed, the running speed is fixed, the time interval of each signal is also fixed, the second sensor 6 is monitored by the time relay, once the scrapers are broken, the second sensor 6 cannot sense the scrapers, and the signal time interval fed back to the time relay is prolonged. At the moment, the PLC electrically connected with the time relay sends a signal, and the alarm starts to work to remind a worker to process faults in time.
It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.
Claims (5)
1. A scraper machine fault detection device comprises a scraper machine and is characterized by also comprising a fixed frame, an impact frame, a first infrared sensor, a second infrared sensor, a PLC (programmable logic controller), a time relay and an alarm,
the fixing frame is arranged on the scraper conveyor in a crossing manner, the middle part of the fixing frame is horizontally and fixedly connected with the sensor mounting frame, the sensor mounting frame is arranged perpendicular to the fixing frame, the fixing frame extends out of two ends of the sensor mounting frame, the first infrared sensor and the second infrared sensor are respectively arranged at two ends of the sensor mounting frame,
the impact frame is rotationally connected below the middle part of the fixed frame through a shaft, two ends of the impact frame are connected with the fixed frame base through springs, the lower part of the impact frame is connected with a plurality of flexible impact pieces which are contacted with the scraper of the scraper conveyor, the impact frame is provided with an induction mark corresponding to the first infrared sensor,
first infrared sensor and PLC controller input connection, PLC controller output is connected with the alarm, second infrared sensor and time relay input connection, time relay output and PLC controller input connection, second infrared sensor is used for responding to the scraper blade of scraping the trigger.
2. The scraper machine fault detection device of claim 1, characterized in that said flexible impact member is a belt.
3. The scraper machine fault detection device of claim 1 wherein said sensing marks are bright in surface, said sensing marks are thin steel sheets mounted vertically on the strike frame parallel to the sensor mount.
4. The scraper machine fault detection device of claim 1, characterized in that the alarm is a voice alarm.
5. The scraper machine fault detection device as claimed in claim 1, characterized in that horizontal brackets are provided at both ends of the fixing frame, and are connected with the scraper machine frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123254539.4U CN216763279U (en) | 2021-12-23 | 2021-12-23 | Scrape trigger fault detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123254539.4U CN216763279U (en) | 2021-12-23 | 2021-12-23 | Scrape trigger fault detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216763279U true CN216763279U (en) | 2022-06-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123254539.4U Active CN216763279U (en) | 2021-12-23 | 2021-12-23 | Scrape trigger fault detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216763279U (en) |
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2021
- 2021-12-23 CN CN202123254539.4U patent/CN216763279U/en active Active
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