CN213949755U - Filter cloth machine belt off tracking detection device - Google Patents
Filter cloth machine belt off tracking detection device Download PDFInfo
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- CN213949755U CN213949755U CN202022944162.4U CN202022944162U CN213949755U CN 213949755 U CN213949755 U CN 213949755U CN 202022944162 U CN202022944162 U CN 202022944162U CN 213949755 U CN213949755 U CN 213949755U
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Abstract
The application relates to a belt deviation detection device of a cloth filtering machine, relating to the field of coal chemical gasification devices; the utility model provides a filter cloth machine belt off tracking detection device, the device mainly includes: correlation type photoelectric switch (1), correlation type photoelectric switch (1) quantity is two, and two correlation type photoelectric switch installs respectively in perpendicular belt (300) both sides to be located same water flat line, the infrared ray optical axis that correlation type photoelectric switch (1) sent with the distance at perpendicular belt (300) edge is in the deviation threshold, the minimum distance of deviation threshold for judging the belt off tracking, correlation type photoelectric switch (1) is located between belt (100) and lower belt (200), and is close to go up belt (100). The application provides a filter cloth machine belt off tracking device can detect filter cloth machine belt off tracking, and the accuracy is high.
Description
Technical Field
The application belongs to the field of coal chemical industry gasification devices, and particularly relates to a belt deviation detection device of a filter cloth machine.
Background
The belt deviation is a common phenomenon in the operation process of a conveyor, as shown in fig. 1, which is a working scene diagram of the conveyor in the field of coal chemical gasification devices in the prior art, wherein 100 is an upper belt, 200 is a lower belt, and 300 is a vertical belt. If the belt deviates, the part of the vertical belt 300 close to the upper belt 100 deviates first, so that the axial force borne by the roller and the carrier roller is increased, and the roller shaft shifting and the carrier roller bearing are damaged; the coal cinder on the upper belt 100 can fall onto the lower belt 200, so that abnormal abrasion between the belt and the roller is caused, and the service life of the roller and the belt is shortened; coal dust is often caused in the process of scattering and cleaning materials, the upper belt 100 is seriously deviated, the belt is turned over and the materials are rolled, so that the stress on one side of the belt exceeds the longitudinal tensile force of the belt, and the belt is transversely torn. Therefore, the belt deviation damage is serious.
In order to find the phenomenon of belt deviation in time, in the prior art, in a coal gasification device cloth filtering machine, a diffuse reflection photoelectric switch is generally used for detecting whether a belt deviates, when the belt deviates, because a transmitter and a receiver of the diffuse reflection photoelectric switch are shielded by the belt, the transmitter reflects enough light to the receiver, then the diffuse reflection photoelectric switch generates a switching signal, the switching signal is transmitted to a belt transmission controller, the cloth filtering machine is powered off immediately, and the belt stops deviating.
However, the working site environment of the coalification department is severe, all the black cinder water is on the belt, and the cinder water is black opaque substance and can interfere the recognition of the diffusion photoelectric switch, so that the belt continuously deviates, and the belt is directly damaged.
In summary, it is important to provide an induction device which can operate in a dark condition and accurately identify belt deviation.
SUMMERY OF THE UTILITY MODEL
In order to overcome prior art's not enough, this application provides a filter cloth machine belt off tracking detection device.
A filter cloth machine belt off tracking detection device includes:
correlation type photoelectric switch, correlation type photoelectric switch quantity is two, and two correlation type photoelectric switch installs respectively in perpendicular belt both sides to be located same water flat line, the infrared ray optical axis that correlation type photoelectric switch sent with the distance at perpendicular belt edge is in the deviation threshold, the minimum distance of deviation threshold for judging the belt off tracking, correlation type photoelectric switch is located between last belt and the lower belt, and is close to go up the belt.
Optionally, in the above device, the correlation photoelectric switch includes a transmitter and a receiver, and the transmitter and the receiver are symmetrically disposed on two sides of the vertical belt plane.
Optionally, in the above device for protecting belt deviation of the cloth filtering machine, the correlation type photoelectric switch is connected to the PLC host through a cable.
Optionally, in the device for protecting the belt of the cloth filtering machine from running off, the deviation threshold value is 3-5 cm.
Optionally, in the above device for protecting belt deviation of cloth filtering machine, the correlation type photoelectric switch is installed in the light shield through a fixing device.
Optionally, in the above device for protecting belt deviation of cloth filtering machine, the light shield is a U-shaped bracket.
Optionally, in the above device for protecting the belt deviation of the cloth filtering machine, the correlation photoelectric switch is disposed on the machine frame on two sides of the vertical belt.
Optionally, the device for protecting the belt deviation of the cloth filtering machine further comprises a gear hole arranged on the frame, and the correlation photoelectric switch is connected with the gear hole.
Optionally, in the above device for protecting belt deviation of a cloth filter, the gear holes include a plurality of connecting holes with different heights.
According to the above technical scheme, this application provides a filter cloth machine belt off tracking detection device, detection device includes: a correlation type photoelectric switch; the number of the correlation type photoelectric switches is two, and the two correlation type photoelectric switches are respectively arranged on two sides of the vertical belt and are positioned on the same horizontal line; the distance between the infrared ray optical axis sent by the correlation type photoelectric switch and the edge of the vertical belt is within a deviation threshold value, the deviation threshold value is the minimum distance for judging the deviation of the belt, and the correlation type photoelectric switch is located between the upper belt and the lower belt and close to the upper belt.
In practical application, the filter cloth machine belt off tracking detection device provided by the application can directly identify opaque objects when identifying the off tracking of the filter cloth machine belt. Compare through diffuse reflection photoelectric switch discernment filter cloth machine belt off tracking, under the condition that is stained with the cinder water on the filter cloth machine belt, unable accurate discernment, the filter cloth machine belt off tracking detection device that this application provided can eliminate the interference of dark and black cinder water on the belt of environment, has improved the reliability and the accuracy of belt off tracking discernment.
Drawings
The technical solutions in the embodiments of the present application will be fully and clearly described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
FIG. 1 is a view of a prior art working scene of a conveyor in the field of coal chemical gasification devices;
fig. 2 is a schematic view of a working scene of the belt deviation detecting device of the cloth filtering machine provided by the embodiment of the application;
fig. 3 is a partial view of a correlation type photoelectric switch of the belt deviation detecting device of the cloth filtering machine provided by the embodiment of the application.
In the figure:
1-correlation type photoelectric switch, 11-emitter, 12-receiver, 2-PLC host, 3-frame, 31-gear hole, 4-cable, 5-lens hood, 100-upper belt, 200-lower belt, 300-vertical belt.
Detailed Description
The technical solutions in the embodiments of the present application will be fully and clearly described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few 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.
As shown in fig. 2 and 3, a belt deviation detecting device of a cloth filtering machine comprises two opposite photoelectric switches 1, wherein the two opposite photoelectric switches are respectively arranged on two sides of a vertical belt 300 and are positioned on the same horizontal line; the distance between the infrared ray optical axis sent by the correlation photoelectric switch 1 and the edge of the vertical belt 300 is within a deviation threshold value, the deviation threshold value is the minimum distance for judging the deviation of the belt, and the correlation photoelectric switch 1 is positioned between the upper belt 100 and the lower belt 200 and is close to the upper belt 100.
According to the belt deviation detection device of the cloth filtering machine, when a belt normally runs, the distance between the edge of a vertical belt 300 and a correlation type photoelectric switch 1 is within a deviation threshold value; when the belt deviates, the vertical belt 300 blocks the light beam in the correlation photoelectric switch 1, the light beam is interrupted, the correlation photoelectric switch 1 generates a switch signal, the belt deviation phenomenon is detected in time, in addition, the time that the light beam of the correlation photoelectric switch 1 crosses the induction distance is one time, and once the belt deviates, the correlation photoelectric switch 1 immediately generates the switch signal.
Further, the correlation type photoelectric switch 1 comprises a transmitter 11 and a receiver 12, wherein the transmitter 11 and the receiver 12 are symmetrically arranged on two sides of the plane perpendicular to the belt 300, when the belt deviates, the transmitter 11 and the receiver 12 are shielded by the belt, and the receiver receives a belt deviation signal. The correlation type photoelectric switch 1 is connected with the PLC host 2 through a cable 4, and when the PLC host receives a belt deviation signal transmitted by the receiver 12, the PLC host 2 controls the filter cloth machine to be powered off, and the belt stops running.
Further, in the application, the deviation threshold value of the belt deviation of the cloth filtering machine is 3-5cm, the deviation threshold value is the minimum value for judging the belt deviation, the belt deviation distance exceeds the deviation threshold value, the receiver 12 receives a belt deviation signal, and the correlation type photoelectric switch 1 generates a switching signal.
Furthermore, the opposite-type photoelectric switch 1 is arranged in the light shield 5 through a fixing device, and the light shield 5 can shield sunlight and other strong light sources, so that the interference of the factors on the opposite-type photoelectric switch 1 is reduced. The light shield 5 is a U-shaped bracket, and the light shield 5 is not limited to the U-shaped bracket, and may be any other device capable of shielding the strong light source as long as it can shield the strong light source.
Further correlation type photoelectric switch 1 sets up on the frame 3 of perpendicular belt 300 both sides, is provided with gear hole 31 on the frame 3, and correlation type photoelectric switch 1 is connected with gear hole 31, and gear hole 31 includes a plurality of connecting holes that differ in height. When the belt of the cloth filtering machine deviates, the part of the vertical belt 300 close to the upper belt 100 deviates first, the gear holes 3 are arranged on the corresponding frame 3 of one section of the vertical belt 300 which deviates preferentially, the connecting holes with different heights can provide different mounting positions for the correlation type photoelectric switch 1, and the correlation type photoelectric switch 1 can adjust the distance between the vertical belt and the upper belt 100 according to actual conditions.
The belt deviation detection device provided in the application can identify the belt deviation stained with a large amount of cinder water. When the cloth filtering machine normally operates, the transmitter 11 and the receiver 12 of the correlation type photoelectric switch 1 are not shielded, the correlation type photoelectric switch transmits low level to the PLC host machine 2, and the machine normally operates. When the belt off tracking, sheltered from by the belt between 11 of transmitter and the receiver 12 of correlation type photoelectric switch 1, the unable light source of receiving of receiver 12 carries the high level to PLC host computer 2, and PLC host computer 2 receives the signal, and the filter cloth machine cuts off the power supply, and the belt stops the function.
In addition, the correlation type photoelectric switch 1 is installed in the light shield 5, the light shield 5 is a U-shaped bracket, and the light shield 5 can shield strong light and reduce interference of sunlight and other strong light sources. The frame 3 is provided with a plurality of gear holes 31, the gear holes 31 are a plurality of connecting holes, and the opposite type photoelectric switch 1 can be adjusted on the frame 3.
According to the above technical scheme, this application provides a filter cloth machine belt off tracking detection device, detection device includes: a correlation type photoelectric switch 1; the number of the correlation photoelectric switches 1 is two, and the two correlation photoelectric switches 1 are respectively installed on two sides of the vertical belt 300 and located on the same horizontal line; the distance between the infrared ray optical axis sent by the correlation type photoelectric switch 1 and the edge of the vertical belt 300 is within a deviation threshold value, the deviation threshold value is the minimum distance for judging the deviation of the belt, and the correlation type photoelectric switch is positioned between the upper belt 100 and the lower belt 200 and is close to the upper belt 100.
In the practical application process, the filter cloth machine belt off tracking detection device that this application provided has solved the application of diffusion photoelectric switch when the cloth machine belt transportation of straining, and the problem of the belt off tracking that is stained with black cinder water can't be discerned sometimes, has reached and has need not to reequip the belt, can discern opaque object, and the purpose of timely accurate detection belt off tracking has protected the belt simultaneously, avoids the material to scatter, has also consequently reduced the loss.
The present application has been described in detail with reference to specific embodiments and illustrative examples, but the description is not intended to limit the application. Those skilled in the art will appreciate that various equivalent substitutions, modifications or improvements may be made to the presently disclosed embodiments and implementations thereof without departing from the spirit and scope of the present disclosure, and these fall within the scope of the present disclosure. The protection scope of this application is subject to the appended claims.
Claims (9)
1. The utility model provides a filter cloth machine belt off tracking detection device which characterized in that, detection device includes: a correlation type photoelectric switch (1); the number of the correlation photoelectric switches (1) is two, and the two correlation photoelectric switches are respectively arranged on two sides of the vertical belt (300) and are positioned on the same horizontal line;
the infrared ray optical axis that correlation type photoelectric switch (1) sent with the distance at perpendicular belt (300) edge is in the deviation threshold, the minimum distance of deviation threshold for judging the belt off tracking, correlation type photoelectric switch (1) is located between last belt (100) and lower belt (200), and is close to go up belt (100).
2. The belt deviation detecting device of the cloth filtering machine as claimed in claim 1, wherein the correlation type photoelectric switch (1) comprises a transmitter (11) and a receiver (12), and the transmitter (11) and the receiver (12) are symmetrically arranged on two sides of a plane vertical to the belt (300).
3. The belt deviation detecting device of the cloth filtering machine as claimed in claim 1, wherein the correlation type photoelectric switch (1) is connected with the PLC host (2) through a cable (4).
4. The device for detecting belt deviation of a cloth filtering machine according to claim 1, wherein the deviation threshold value is 3-5 cm.
5. A device for detecting belt deviation of a cloth filtering machine according to claim 1, wherein the correlation type photoelectric switch (1) is provided with a light shield (5) by a fixing device.
6. The belt deviation detecting device of the cloth filtering machine as claimed in claim 5, wherein the light shield (5) is a U-shaped bracket.
7. The belt deviation detecting device of the cloth filtering machine as claimed in claim 1, wherein the correlation type photoelectric switch (1) is arranged on the machine frame (3) at two sides of the vertical belt (300).
8. The belt deviation detecting device of the cloth filtering machine as claimed in claim 7, further comprising a shift hole (31) arranged on the frame (3), wherein the correlation type photoelectric switch (1) is connected with the shift hole (31).
9. The belt deviation detecting device of the cloth filtering machine as claimed in claim 8, wherein the gear hole (31) comprises a plurality of connecting holes with different heights.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022944162.4U CN213949755U (en) | 2020-12-11 | 2020-12-11 | Filter cloth machine belt off tracking detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022944162.4U CN213949755U (en) | 2020-12-11 | 2020-12-11 | Filter cloth machine belt off tracking detection device |
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| CN213949755U true CN213949755U (en) | 2021-08-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114419852A (en) * | 2021-12-27 | 2022-04-29 | 天地科技股份有限公司 | Offset judgment and grading early warning method and device for scraper conveyor |
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2020
- 2020-12-11 CN CN202022944162.4U patent/CN213949755U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114419852A (en) * | 2021-12-27 | 2022-04-29 | 天地科技股份有限公司 | Offset judgment and grading early warning method and device for scraper conveyor |
| CN114419852B (en) * | 2021-12-27 | 2024-02-23 | 天地科技股份有限公司 | Scraper conveyor deviation judging and grading early warning method and device |
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