CN112278776B - Detection device of belt conveyor - Google Patents
Detection device of belt conveyor Download PDFInfo
- Publication number
- CN112278776B CN112278776B CN202011109155.0A CN202011109155A CN112278776B CN 112278776 B CN112278776 B CN 112278776B CN 202011109155 A CN202011109155 A CN 202011109155A CN 112278776 B CN112278776 B CN 112278776B
- Authority
- CN
- China
- Prior art keywords
- rotating speed
- deviation
- deviation value
- driving roller
- belt conveyor
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
- B65G43/04—Control devices, e.g. for safety, warning or fault-correcting detecting slip between driving element and load-carrier, e.g. for interrupting the drive
Landscapes
- Control Of Conveyors (AREA)
Abstract
The invention discloses a detection device of a belt conveyor, which comprises a positioning piece, a radar detector and a radar signal processor, wherein the radar detector is used for detecting the positioning piece, the positioning piece is fixed on the side surface of a roller, the radar detector is fixed on the side of the roller and is separated from the positioning piece by a preset distance, the radar signal processor stores the minimum detection distance and the maximum detection distance of the radar detector relative to the positioning piece, and only echo signals of which the detection distances are within the minimum detection range and the maximum detection range are used as effective signals for driving the rotating speed of the roller by the radar signal processor. In addition, the singlechip of the detection device is preset with a deviation value which can automatically change according to the target rotating speed of the driving roller, and the singlechip judges the slipping state of the belt conveyor and the fault state of the detection device and the belt conveyor according to the deviation condition of the target rotating speed and the rotating speed of the driving roller and the rotating speed of the driven roller. The detection device shields the interference of falling materials to the radar detector, and has the functions of belt slip detection and fault detection.
Description
Technical Field
The invention relates to the technical field of belt conveyors, in particular to a detection device of a belt conveyor.
Background
The belt feeder can dispose speed detection device usually, and at present, the speed detection device of belt feeder roughly divide into two kinds:
one type is a contact speed detection device, which is provided with a roller and a magnetic induction sensor, wherein the roller is in contact with the belt, the magnetic induction sensor senses a signal through rotation of the roller, and the belt speed is calculated by using the sensed signal. The disadvantages of this type of detection device are: the direct contact causes the roller to be easily worn, and the speed deviation is accelerated after long-term use, so that the detection result is inaccurate.
The other type is a non-contact speed detection device, and the devices are classified into an external type and an internal type.
The built-in type is that a magnetic force source is arranged on a belt, and a magnetic sensitive probe is arranged at a proper position. When the belt runs, the magnetic force source passes through the magnetic sensitive probe and keeps a certain distance with the magnetic sensitive probe, so that the magnetic sensitive probe senses signals, and the speed of the belt is calculated by using the sensed signals. The built-in detection device has the disadvantages that: the production and manufacturing cost is very high, so the popularization and the application are inconvenient.
The external type is that a sensed part is arranged on one side of a turnabout drum of the belt conveyor, a position signal of the sensed part is sensed by a proximity switch, and the belt speed is calculated by the sensed signal. The external detection device has no problem of contact wear, and compared with the internal detection device, the external detection device has much lower production and manufacturing cost, thereby being more convenient for popularization and application. However, the external detection device is prone to detection variations.
As can be seen from the above analysis, the existing speed detection devices of belt conveyors have their drawbacks, and therefore, improvements to them by those skilled in the art are needed.
Disclosure of Invention
In order to solve the above technical problem, the present invention provides a detection device for a belt conveyor, including a detection unit for detecting a rotational speed of a drum, the detection unit including:
the positioning piece is fixed on the side surface of the roller;
the radar detector is fixed on the side of the roller, is spaced from the positioning piece by a preset distance along the axial direction of the roller, and is used for detecting the positioning piece;
the radar signal processor is used for storing the minimum detection distance and the maximum detection distance of the radar detector relative to the positioning piece; the device is also internally provided with: the device comprises a detection distance calculation program which takes echo signals received by a radar detector as input parameters, a screening program which is used for screening the echo signals of which the detection distance is more than or equal to the minimum detection distance and less than or equal to the maximum detection distance, and a roller rotating speed calculation program which takes the screened echo signals as the input parameters.
In one embodiment, the detection device of the belt conveyor is provided with two groups of detection units, one group is used for detecting the rotating speed of the driving roller, and the other group is used for detecting the rotating speed of the driven roller.
In one embodiment, the detection device of the belt conveyor further comprises a single chip microcomputer integrated system, wherein the single chip microcomputer integrated system comprises a single chip microcomputer and an A/D conversion module;
the single chip microcomputer is in communication connection with the radar signal processors of the two groups of detection units through the A/D conversion module, so that the rotating speed of the driving roller and the rotating speed of the driven roller can be obtained, and is also in communication connection with a frequency converter of a motor for driving the driving roller to rotate through the A/D conversion module, so that the target rotating speed of the driving roller can be obtained;
the singlechip is internally stored with an offset value and is also internally provided with: the device comprises a calculation program for calculating the deviation among the rotating speed of the driving roller, the rotating speed of the driven roller and the target rotating speed of the driving roller, a comparison program for comparing the calculated deviation with the magnitude of a prestored corresponding deviation value, and an output program for selectively outputting a belt running speed and/or a belt slip alarm command and/or a fault alarm command and/or a shutdown command according to the comparison result.
In one embodiment, the offset value includes a first offset value and a second offset value, and the output routine includes a first sub-output routine configured to: and when the deviation between the target rotating speed of the driving roller and the rotating speed of the driving roller is smaller than the first deviation value and the deviation between the rotating speed of the driven roller and the rotating speed of the driving roller is smaller than the second deviation value, the singlechip outputs the running speed of the belt conveyor, wherein the running speed of the belt conveyor is equal to the rotating speed of the driven roller.
In one embodiment, the deviation value further comprises a third deviation value, the third deviation value being greater than the second deviation value; the output routine further includes a second sub-output routine configured to: when the deviation between the target rotating speed of the driving roller and the rotating speed of the driving roller is smaller than the first deviation value, and the deviation between the rotating speed of the driven roller and the rotating speed of the driving roller is larger than or equal to the second deviation value and smaller than the third deviation value continues for a preset time length, the single chip microcomputer outputs the running speed of the belt conveyor and a belt slip alarm instruction, and the running speed of the belt conveyor is equal to the rotating speed of the driven roller.
In one embodiment, the offset value further includes one or more level offset values, the second offset value is a level 1 offset value, the other level offset values are sequentially a level 2 offset value and a level 3 offset value … n offset values, and each level offset value increases stepwise and is smaller than the third offset value;
the second sub-output routine is configured to: when the deviation between the target rotating speed of the driving roller and the rotating speed of the driving roller is smaller than the first deviation value, and the deviation between the rotating speed of the driven roller and the rotating speed of the driving roller is larger than or equal to the m-level deviation value and smaller than the m + 1-level deviation value continues for a preset time length, the single chip microcomputer outputs the operating speed of the belt conveyor and an m-level belt slip alarm instruction, and outputs a stop instruction while outputting a maximum-level belt slip alarm instruction, wherein the operating speed of the belt conveyor is equal to the rotating speed of the driven roller, and m is larger than or equal to 1 and smaller than or equal to n.
In one embodiment, the output program further comprises a third sub-output program configured to: when the deviation between the target rotating speed of the driving roller and the rotating speed of the driving roller is smaller than the first deviation value, and the deviation between the rotating speed of the driven roller and the rotating speed of the driving roller is larger than or equal to the third deviation value continues to preset the time length, the single chip microcomputer outputs a fault alarm instruction and a stop instruction of the detection device.
In one embodiment, the offset value further includes a fourth offset value and a fifth offset value, and the output routine includes a fourth sub-output routine configured to: when the deviation between the target rotating speed of the driving roller and the rotating speed of the driven roller is smaller than the fourth deviation value and the deviation between the target rotating speed of the driving roller and the rotating speed of the driving roller is larger than the fifth deviation value, the running speed of the belt conveyor and an internal fault alarm instruction of the belt conveyor are continuously preset for a long time, wherein the running speed of the belt conveyor is equal to the rotating speed of the driven roller.
In one embodiment, the offset value further includes a sixth offset value and a seventh offset value, and the output routine includes a fifth sub-output routine configured to: when the deviation between the rotating speed of the driving roller and the rotating speed of the driven roller is smaller than the sixth deviation value and the deviation between the target rotating speed of the driving roller and the rotating speed of the driving roller is larger than the seventh deviation value continues for a preset duration or the target rotating speed of the driving roller is not detected, the single chip microcomputer outputs the running speed of the belt conveyor and an internal fault alarm instruction of the belt conveyor, wherein the running speed of the belt conveyor is equal to the rotating speed of the driven roller.
In one embodiment, the offset values further include an eighth offset value, a ninth offset value, and a tenth offset value, and the output routine includes a sixth sub-output routine configured to: and when the deviation between the rotating speed of the driving roller and the rotating speed of the driven roller is greater than the eighth deviation value, the deviation between the target rotating speed of the driving roller and the rotating speed of the driving roller is greater than the ninth deviation value, and the deviation between the target rotating speed of the driving roller and the rotating speed of the driven roller is greater than the tenth deviation value, the singlechip outputs a fault alarm instruction of the detection device.
In one embodiment, the single chip microcomputer is internally provided with a deviation value adjusting program which takes the target rotating speed of the driving roller as an input parameter, and when the target rotating speed of the driving roller changes, each deviation value changes along with the target rotating speed.
In one embodiment, the single chip microcomputer integrated system is arranged in an explosion-proof box.
The detection device of the belt conveyor provided by the invention has the following technical effects:
(1) the roller rotating speed of the belt conveyor is determined by detecting the position of the locating piece by adopting a radar detector, and the belt conveyor belongs to non-contact detection, so that the problem of abrasion does not exist;
(2) through predetermineeing minimum detection distance and maximum detection distance in radar signal processor to only regard the echo signal that detection distance is in between minimum detection distance and the maximum detection distance as the effective signal of the cylinder rotational speed of definite belt feeder, and set up the spacer in the side of cylinder, set up radar detector interval side at the side of cylinder, like this, when the material drops from the side of cylinder, the detection distance that the echo signal that the radar detector received comes from the material corresponds is less than minimum detection distance, so the echo signal of material can not be regarded as the effective signal of the cylinder rotational speed of definite belt feeder, consequently, the material that drops has been solved and has produced the interference and lead to the inaccurate problem of speed measurement to radar detector.
(3) The deviation value is preset in the single chip microcomputer, the target rotating speed of the driving roller, the rotating speed of the driving roller and the rotating speed of the driven roller are compared with the corresponding deviation value, the slipping state of the belt conveyor, the detection device and the belt conveyor are judged whether to have faults according to the comparison result, and when slipping and faults exist, an alarm is given. Compared with the existing speed detection device, the device has the advantages that the slipping detection and fault detection functions are increased, and the good operation of the belt conveyor can be reliably guaranteed.
(4) The deviation value adjusting program which takes the target rotating speed of the driving roller as an input parameter is arranged in the single chip microcomputer, so that each deviation value in the single chip microcomputer changes along with the change of the target rotating speed of the driving roller. Set up like this, detection device can adjust the size of deviation value automatically and adaptively when detecting the belt feeder under the different target rotational speeds to can utilize different deviation values to carry out belt slip judgement and failure diagnosis, compare and adopt single deviation value to judge, the accuracy is higher.
(5) Through installing single chip computer integrated system in explosion-proof box, can guarantee that the system does not receive the interference of external dust, water etc. makes the long-time steady operation of system, provides reliable guarantee for the good operation of belt feeder.
Drawings
FIG. 1 is a schematic view of the installation positions of a radar detector and a locating piece of a detection device of a belt conveyor provided by the invention;
FIG. 2 is a logic block diagram of a radar signal processor of a detection device of a belt conveyor provided by the invention;
fig. 3 is a logic block diagram of a single chip microcomputer integrated system of the detection device of the belt conveyor provided by the invention.
The reference numerals are explained below:
1 positioning element, 2 radar detector.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution of the present invention is further described in detail below with reference to the accompanying drawings and the detailed description.
The belt conveyor comprises a belt, a driving roller, a driven roller and a support for supporting the rollers. The driving roller is driven by the motor to rotate, and the driven roller rotates under the action of the friction force of the belt.
The detection device of the belt conveyor comprises a detection unit for detecting the rotating speed of the roller and a single chip microcomputer integrated system.
Specifically, two sets of detecting units may be provided, one set being for detecting the rotational speed of the driving roller and the other set being for detecting the rotational speed of the driven roller.
The detection unit comprises a positioning piece 1, a radar detector 2 and a radar signal processor.
The positioning piece 1 is fixed on the side surface of the roller. In the figure, the positioning piece 1 is sheet-shaped, and the positioning piece 1 is fixed at the outer edge of the side surface of the roller through the positioning seat.
The radar detector 2 is fixed on the side of the roller and is spaced from the positioning member 1 by a preset distance along the axial direction (i.e. the left-right direction in the figure) of the roller. In the figure, a radar detector 2 is installed at the same height position as a spacer 1.
During detection, the radar detector 2 sends out radar waves twice to detect the position of the positioning piece 1, the emission time interval of the two radar waves is smaller than the time for rotating the roller for a half circle, and the radar detector 2 transmits echo signals of the two sent out radar waves to the radar signal processor.
The radar signal processor screens out valid signals from the echo signals. And a drum rotating speed calculation program is arranged in the radar signal processor. The basis of the drum rotating speed calculation program is a Doppler frequency shift formula, the drum rotating speed calculation program only takes the screened effective signals as input parameters, so that the rotating speed of the drum can be calculated according to the effective echo signals and the Doppler frequency shift formula, and the calculated drum rotating speed is transmitted to the single chip microcomputer integrated system.
Specifically, the screening is realized by the following settings:
the minimum detection distance and the maximum detection distance of the radar detector 2 relative to the positioning piece 1 are prestored in the radar signal processor, and by taking a graphic representation as an example, the minimum detection distance of the radar detector 2 relative to the positioning piece 1 is D1 in the graph, and the maximum detection distance of the radar detector 2 relative to the positioning piece 1 is the length of a straight line L in the graph.
And setting a screening program in the radar signal processor, specifically comparing the detection distance corresponding to each echo signal with the minimum detection distance and the maximum detection distance, and only taking the echo signal of which the detection distance is greater than or equal to the minimum detection distance and less than or equal to the maximum detection distance as an effective signal.
Through predetermineeing minimum detection distance and maximum detection distance in radar signal processor to only regard the echo signal that detection distance is in between minimum detection distance and the maximum detection distance as the effective signal of the cylinder rotational speed of definite belt feeder, and set up the spacer in the side of cylinder, set up radar detector 2 interval side of the side of cylinder, like this, when the material drops from the side of cylinder, the detection distance that echo signal that radar detector 2 received from the material corresponds is less than minimum detection distance, so the echo signal of material can not be regarded as the effective signal of the cylinder rotational speed of definite belt feeder, consequently solved the material that drops and produced the problem that the interference leads to measuring the speed misalignment to radar detector 2.
Specifically, the single chip integrated system can be arranged in the explosion-proof box. In one embodiment, the explosion proof box protection rating is set to IP 65. Like this, can guarantee that the system does not receive the interference of external dust, water etc. makes the long-time steady operation of system, provides reliable guarantee for the good operation of belt feeder. The single chip microcomputer integrated system comprises a single chip microcomputer and an A/D conversion module.
The single chip microcomputer is in communication connection with the radar signal processors of the two groups of detection units through the A/D conversion module, so that the rotating speed of the driving roller and the rotating speed of the driven roller can be obtained.
The single chip microcomputer is in communication connection with a frequency converter of a motor driving the driving roller to rotate through the A/D conversion module, and therefore the target rotating speed of the driving roller can be obtained. The target rotating speed of the driving roller is determined by the output power of the frequency converter.
The single chip microcomputer stores an offset value. The singlechip is internally provided with the following programs: a calculation program for calculating the deviation among the rotating speed of the driving roller, the rotating speed of the driven roller and the target rotating speed of the driving roller, a comparison program for comparing the calculated deviation with the magnitude of the prestored corresponding deviation value, and an output program for selectively outputting a belt running speed and/or a belt slip warning command and/or a malfunction warning command and/or a stop command according to the comparison result.
Specifically, the offset value includes a first offset value and a second offset value, and in one embodiment, the first offset value is set to 1% and the second offset value is set to 10%. And, the output program includes a first sub-output program. The first sub-output routine is configured to: when the deviation between the target rotating speed of the driving roller and the rotating speed of the driving roller is smaller than the first deviation value and the deviation between the rotating speed of the driven roller and the rotating speed of the driving roller is smaller than the second deviation value, the single chip microcomputer outputs the running speed of the belt conveyor, and the running speed of the belt conveyor is equal to the rotating speed of the driven roller.
The running speed of the belt output by the single chip microcomputer can be transmitted to the display module which is arranged independently, and the running speed is displayed by the display module. Or the data can be transmitted to the control system of the belt conveyor and displayed by a main display of the control system of the belt conveyor.
Specifically, the offset value may further include a third offset value, the third offset value being greater than the second offset value, and in one embodiment, the second offset value is set to 10% and the third offset value is set to 40%. And, the output program further includes a second sub-output program. The second sub-output routine is configured to: when the deviation between the target rotating speed of the driving roller and the rotating speed of the driving roller is smaller than the first deviation value, and the deviation between the rotating speed of the driven roller and the rotating speed of the driving roller is larger than or equal to the second deviation value and smaller than the third deviation value, the singlechip outputs the running speed of the belt conveyor and a belt slip alarm instruction, and the running speed of the belt conveyor is equal to the rotating speed of the driven roller. In one embodiment, the preset time period is set to 5 seconds.
The belt slip alarm command output by the single chip microcomputer can be transmitted to the alarm module which is arranged independently, and the alarm module gives an alarm response. Or the alarm signal can be transmitted to a control system of the belt conveyor, and the control system of the belt conveyor makes an alarm response.
Specifically, the belt slip warning can report to the police according to the belt degree of skidding in grades, still can do when skidding seriously and shut down the processing, specifically realize through following setting: and setting one or more grade deviation values, wherein the second deviation value is a grade-1 deviation value, the other grade deviation values are a grade-2 deviation value and a grade-3 deviation value … n deviation values in sequence, and each grade deviation value is gradually increased and is smaller than the third deviation value. In one embodiment, the level 1 offset value is set to 10% and the level 2 offset value is set to 20%. And, it is also necessary that the second sub-output program is further configured to: when the deviation between the target rotating speed of the driving roller and the rotating speed of the driving roller is smaller than a first deviation value, and the deviation between the rotating speed of the driven roller and the rotating speed of the driving roller is larger than or equal to an m-level deviation value and smaller than an m + 1-level deviation value continues for a preset time length, the single chip microcomputer outputs the operating speed of the belt conveyor and an m-level belt slip alarm instruction, and outputs a stop instruction while outputting a maximum-level belt slip alarm instruction, wherein the operating speed of the belt conveyor is equal to the rotating speed of the driven roller, and m is larger than or equal to 1 and smaller than or equal to n.
The stop command can be transmitted to a control system of the belt conveyor, the control system of the belt conveyor makes a stop response, and the stop command can also be directly connected to a circuit breaker in a control loop of a motor for driving the driving roller, and the circuit breaker makes a stop response.
Specifically, the output program may further include a third sub-output program configured to: when the deviation between the target rotating speed of the driving roller and the rotating speed of the driving roller is smaller than the first deviation value, and the deviation between the rotating speed of the driven roller and the rotating speed of the driving roller is larger than or equal to the third deviation value continues to preset the time length, the single chip microcomputer outputs a fault alarm instruction and a stop instruction of the detection device.
The fault alarm instruction of the detection device output by the single chip microcomputer can be transmitted to the alarm module which is arranged independently, and the alarm module gives an alarm response. Or the alarm signal can be transmitted to a control system of the belt conveyor, and the control system of the belt conveyor makes an alarm response. And reminding a maintainer to overhaul the detection device through an alarm response.
Specifically, the offset value may further include a fourth offset value and a fifth offset value, and in one embodiment, the fourth offset value is set to 1% and the fifth offset value is set to 10%. And, the output program further includes a fourth sub-output program. The fourth sub-output routine is configured to: when the deviation between the target rotating speed of the driving roller and the rotating speed of the driven roller is smaller than the fourth deviation value and the deviation between the target rotating speed of the driving roller and the rotating speed of the driving roller is larger than the fifth deviation value continues to preset the time length, the single chip microcomputer outputs the running speed of the belt conveyor and an internal fault alarm instruction of the belt conveyor, wherein the running speed of the belt conveyor is equal to the rotating speed of the driven roller. In one embodiment, the preset time period is set to 5 seconds.
Transmitting an internal fault alarm instruction of the belt conveyor to a control system of the belt conveyor, and reminding operators of carrying out maintenance treatment on the belt conveyor by the control system of the belt conveyor
Specifically, the deviation values may also include a sixth deviation value and a seventh deviation value. And, the output program further includes a fifth sub-output program configured to: when the deviation between the rotating speed of the driving roller and the rotating speed of the driven roller is smaller than the sixth deviation value and the deviation between the target rotating speed of the driving roller and the rotating speed of the driving roller is larger than the seventh deviation value continues for a preset time length or the target rotating speed of the driving roller is not detected, the single chip microcomputer outputs the running speed of the belt conveyor and an internal fault alarm instruction of the belt conveyor, wherein the running speed of the belt conveyor is equal to the rotating speed of the driven roller. In one embodiment, the preset time period is set to 10 seconds.
Specifically, the offset value may further include an eighth offset value, a ninth offset value, and a tenth offset value, and the output program includes a sixth sub-output program configured to: and when the deviation between the rotating speed of the driving roller and the rotating speed of the driven roller is greater than the eighth deviation value, the deviation between the target rotating speed of the driving roller and the rotating speed of the driving roller is greater than the ninth deviation value, and the deviation between the target rotating speed of the driving roller and the rotating speed of the driven roller is greater than the tenth deviation value, the singlechip outputs a fault alarm instruction of the detection device.
Specifically, the deviation value in the single chip microcomputer may be a constant value or may be set to a variable value. Specifically, the automatic variation of the deviation value is achieved by the following settings: a deviation value adjusting program which takes the target rotating speed of the driving roller as an input parameter is arranged in the single chip microcomputer, and when the target rotating speed of the driving roller changes, all deviation values change along with the target rotating speed. Specifically, each deviation value can be positively correlated with the target rotating speed of the driving roller. Set up like this, detection device can adjust the size of deviation value automatically and adaptively when detecting the belt feeder under the different target rotational speeds to can utilize different deviation values to carry out belt slip judgement and failure diagnosis, compare and adopt single deviation value to judge, the accuracy is higher.
In conclusion, the detection device of the belt conveyor provided by the invention belongs to non-contact detection, so that the abrasion problem is avoided, the problem that the speed measurement is inaccurate due to the interference of falling materials on the radar detector 2 is solved, the belt slippage detection and fault detection functions are realized, the good operation of the belt conveyor can be reliably ensured, and the magnitude of a built-in deviation value can be automatically and adaptively adjusted when the belt conveyor is detected at different target rotating speeds, so that the accuracy is higher.
The detection device of the belt conveyor provided by the invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (12)
1. The detection device of the belt conveyor is characterized by comprising a detection unit for detecting the rotating speed of a roller, wherein the detection unit comprises a positioning piece (1) fixed on the side surface of the roller, a radar detector (2) and a radar signal processor;
the radar detector (2) is fixed on the side of the roller and is spaced from the positioning piece (1) by a preset distance along the axial direction of the roller, the radar detector (2) sends out radar waves twice within a half-turn time of the roller to detect the position of the positioning piece (1), and the radar detector (2) transmits echo signals of the radar waves to the radar signal processor;
the radar signal processor is internally stored with the minimum detection distance and the maximum detection distance of the radar detector (2) relative to the positioning piece (1); the device is also internally provided with: the device comprises a detection distance calculation program which takes echo signals received by a radar detector (2) as input parameters, a screening program which is used for screening the echo signals of which the detection distance is more than or equal to the minimum detection distance and less than or equal to the maximum detection distance, and a roller rotating speed calculation program which takes the screened echo signals as the input parameters.
2. The detecting device of the belt conveyor according to claim 1, wherein the detecting device of the belt conveyor is provided with two groups of detecting units, one group is used for detecting the rotating speed of the driving roller, and the other group is used for detecting the rotating speed of the driven roller.
3. The detection device of the belt conveyor according to claim 2, further comprising a single chip microcomputer integrated system, wherein the single chip microcomputer integrated system comprises a single chip microcomputer and an A/D conversion module;
the single chip microcomputer is in communication connection with the radar signal processors of the two groups of detection units through the A/D conversion module, so that the rotating speed of the driving roller and the rotating speed of the driven roller can be obtained, and is also in communication connection with a frequency converter of a motor for driving the driving roller to rotate through the A/D conversion module, so that the target rotating speed of the driving roller can be obtained;
the singlechip is internally stored with an offset value and is also internally provided with: the device comprises a calculation program for calculating the deviation among the rotating speed of the driving roller, the rotating speed of the driven roller and the target rotating speed of the driving roller, a comparison program for comparing the calculated deviation with the magnitude of a prestored corresponding deviation value, and an output program for selectively outputting a belt running speed and/or a belt slip alarm command and/or a fault alarm command and/or a shutdown command according to the comparison result.
4. The belt conveyor detection device of claim 3, wherein the deviation value comprises a first deviation value and a second deviation value, and the output routine comprises a first sub-output routine configured to: and when the deviation between the target rotating speed of the driving roller and the rotating speed of the driving roller is smaller than the first deviation value and the deviation between the rotating speed of the driven roller and the rotating speed of the driving roller is smaller than the second deviation value, the singlechip outputs the running speed of the belt conveyor, wherein the running speed of the belt conveyor is equal to the rotating speed of the driven roller.
5. The belt conveyor detection device of claim 4, wherein the offset value further comprises a third offset value, and the third offset value is greater than the second offset value; the output routine further includes a second sub-output routine configured to: when the deviation between the target rotating speed of the driving roller and the rotating speed of the driving roller is smaller than the first deviation value, and the deviation between the rotating speed of the driven roller and the rotating speed of the driving roller is larger than or equal to the second deviation value and smaller than the third deviation value continues for a preset time length, the single chip microcomputer outputs the running speed of the belt conveyor and a belt slip alarm instruction, and the running speed of the belt conveyor is equal to the rotating speed of the driven roller.
6. The detection device of the belt conveyor as claimed in claim 5, wherein the deviation value further comprises one or more level deviation values, the second deviation value is a level 1 deviation value, the other level deviation values are a level 2 deviation value and a level 3 deviation value … n deviation values in sequence, and each level deviation value increases stepwise and is smaller than the third deviation value;
the second sub-output routine is configured to: when the deviation between the target rotating speed of the driving roller and the rotating speed of the driving roller is smaller than the first deviation value, and the deviation between the rotating speed of the driven roller and the rotating speed of the driving roller is larger than or equal to the m-level deviation value and smaller than the m + 1-level deviation value continues for a preset time length, the single chip microcomputer outputs the operating speed of the belt conveyor and an m-level belt slip alarm instruction, and outputs a stop instruction while outputting a maximum-level belt slip alarm instruction, wherein the operating speed of the belt conveyor is equal to the rotating speed of the driven roller, and m is larger than or equal to 1 and smaller than or equal to n.
7. The belt conveyor detection device of claim 6, wherein the output routine further comprises a third sub-output routine configured to: when the deviation between the target rotating speed of the driving roller and the rotating speed of the driving roller is smaller than the first deviation value, and the deviation between the rotating speed of the driven roller and the rotating speed of the driving roller is larger than or equal to the third deviation value continues to preset the time length, the single chip microcomputer outputs a fault alarm instruction and a stop instruction of the detection device.
8. The belt conveyor detection device of claim 7, wherein the deviation value further comprises a fourth deviation value and a fifth deviation value, and the output routine comprises a fourth sub-output routine configured to: when the deviation between the target rotating speed of the driving roller and the rotating speed of the driven roller is smaller than the fourth deviation value and the deviation between the target rotating speed of the driving roller and the rotating speed of the driving roller is larger than the fifth deviation value, the running speed of the belt conveyor and an internal fault alarm instruction of the belt conveyor are continuously preset for a long time, wherein the running speed of the belt conveyor is equal to the rotating speed of the driven roller.
9. The belt conveyor detection device of claim 8, wherein the deviation value further comprises a sixth deviation value and a seventh deviation value, and wherein the output routine comprises a fifth sub-output routine configured to: when the deviation between the rotating speed of the driving roller and the rotating speed of the driven roller is smaller than the sixth deviation value and the deviation between the target rotating speed of the driving roller and the rotating speed of the driving roller is larger than the seventh deviation value continues for a preset duration or the target rotating speed of the driving roller is not detected, the single chip microcomputer outputs the running speed of the belt conveyor and an internal fault alarm instruction of the belt conveyor, wherein the running speed of the belt conveyor is equal to the rotating speed of the driven roller.
10. The belt conveyor detection device of claim 9, wherein the deviation value further comprises an eighth deviation value, a ninth deviation value, and a tenth deviation value, and the output routine comprises a sixth sub-output routine configured to: and when the deviation between the rotating speed of the driving roller and the rotating speed of the driven roller is greater than the eighth deviation value, the deviation between the target rotating speed of the driving roller and the rotating speed of the driving roller is greater than the ninth deviation value, and the deviation between the target rotating speed of the driving roller and the rotating speed of the driven roller is greater than the tenth deviation value, the singlechip outputs a fault alarm instruction of the detection device.
11. The detecting device of a belt conveyor as claimed in any one of claims 3-10, wherein the single chip microcomputer is embedded with a deviation value adjusting program using a target rotating speed of the driving roller as an input parameter, and when the target rotating speed of the driving roller changes, each deviation value changes accordingly.
12. The belt conveyor detection device according to claim 11, wherein the single chip microcomputer integrated system is arranged in an explosion-proof box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011109155.0A CN112278776B (en) | 2020-10-16 | 2020-10-16 | Detection device of belt conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011109155.0A CN112278776B (en) | 2020-10-16 | 2020-10-16 | Detection device of belt conveyor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112278776A CN112278776A (en) | 2021-01-29 |
| CN112278776B true CN112278776B (en) | 2022-04-26 |
Family
ID=74497160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011109155.0A Active CN112278776B (en) | 2020-10-16 | 2020-10-16 | Detection device of belt conveyor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112278776B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114229385B (en) * | 2022-01-18 | 2024-05-03 | 华能铜川照金煤电有限公司 | Method and device for outputting rotation speed of coal feeder of thermal power plant based on double rotation speed sensors |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002503802A (en) * | 1998-02-13 | 2002-02-05 | フェニックス アクチエンゲゼルシャフト | Equipment for continuous monitoring of conveyor belt joining |
| CN201990214U (en) * | 2010-07-08 | 2011-09-28 | 中国神华能源股份有限公司 | Slagging roller stall detection device and slagging roller of belt machine |
| DE102011004617A1 (en) * | 2011-02-23 | 2013-01-17 | Endress + Hauser Gmbh + Co. Kg | Estimation of signals parameter rotational invariance technique (ESPRIT) method for determining angular placement of at least one radar target involves determining angular position of radar target from sets of received signals |
| CN103021255A (en) * | 2011-12-30 | 2013-04-03 | 上海德意达电子电器设备有限公司 | Simulation experiment device used for testing radar |
| CN202967430U (en) * | 2012-09-14 | 2013-06-05 | 河北联合大学 | Multipoint contrast-type intelligent slipping fault monitoring system for belt conveyor |
| CN105510894A (en) * | 2016-02-22 | 2016-04-20 | 浙江江兴汽车检测设备有限公司 | Calibrating apparatus for radar tachometers for motor vehicles |
| CN108263807A (en) * | 2018-01-26 | 2018-07-10 | 中国电子科技集团公司第三十八研究所 | A kind of conveyer for being used for transmission radar component |
| CN207810470U (en) * | 2018-01-26 | 2018-09-04 | 中国电子科技集团公司第三十八研究所 | A kind of conveyer being used for transmission radar component |
| CN109765570A (en) * | 2018-11-22 | 2019-05-17 | 山东里能鲁西矿业有限公司 | A kind of Auto-rectification Device for Belt Conveyer detection method based on laser radar |
| CN110902316A (en) * | 2019-11-13 | 2020-03-24 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Large-scale transportation belt slip detection method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7982764B2 (en) * | 2008-07-08 | 2011-07-19 | United Parcel Service Of America, Inc. | Apparatus for monitoring a package handling system |
| US9389191B2 (en) * | 2012-10-22 | 2016-07-12 | Troxler Electronic Laboratories, Inc. | Conveyor system and measuring device for determining water content of a construction material |
-
2020
- 2020-10-16 CN CN202011109155.0A patent/CN112278776B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002503802A (en) * | 1998-02-13 | 2002-02-05 | フェニックス アクチエンゲゼルシャフト | Equipment for continuous monitoring of conveyor belt joining |
| CN201990214U (en) * | 2010-07-08 | 2011-09-28 | 中国神华能源股份有限公司 | Slagging roller stall detection device and slagging roller of belt machine |
| DE102011004617A1 (en) * | 2011-02-23 | 2013-01-17 | Endress + Hauser Gmbh + Co. Kg | Estimation of signals parameter rotational invariance technique (ESPRIT) method for determining angular placement of at least one radar target involves determining angular position of radar target from sets of received signals |
| CN103021255A (en) * | 2011-12-30 | 2013-04-03 | 上海德意达电子电器设备有限公司 | Simulation experiment device used for testing radar |
| CN202967430U (en) * | 2012-09-14 | 2013-06-05 | 河北联合大学 | Multipoint contrast-type intelligent slipping fault monitoring system for belt conveyor |
| CN105510894A (en) * | 2016-02-22 | 2016-04-20 | 浙江江兴汽车检测设备有限公司 | Calibrating apparatus for radar tachometers for motor vehicles |
| CN108263807A (en) * | 2018-01-26 | 2018-07-10 | 中国电子科技集团公司第三十八研究所 | A kind of conveyer for being used for transmission radar component |
| CN207810470U (en) * | 2018-01-26 | 2018-09-04 | 中国电子科技集团公司第三十八研究所 | A kind of conveyer being used for transmission radar component |
| CN109765570A (en) * | 2018-11-22 | 2019-05-17 | 山东里能鲁西矿业有限公司 | A kind of Auto-rectification Device for Belt Conveyer detection method based on laser radar |
| CN110902316A (en) * | 2019-11-13 | 2020-03-24 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Large-scale transportation belt slip detection method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112278776A (en) | 2021-01-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2526319C2 (en) | Bearing module with sensing device | |
| EP2189795A1 (en) | Belt slip meter | |
| CN207851591U (en) | A kind of metering of feeder and control monitoring device | |
| CN112278776B (en) | Detection device of belt conveyor | |
| CA2380280A1 (en) | Shaft voltage and current monitoring system | |
| CN108731942A (en) | Rotating machinery fault monitors system and its monitoring method | |
| CN114906566B (en) | Belt breakage detection device and method | |
| CN102735866A (en) | Photoelectric counter pulse-based method for measuring rotation speed difference of two shafts | |
| ITMI20091028A1 (en) | WIND POWER PLANT FOR THE GENERATION OF ELECTRICITY AND ITS CONTROL METHOD | |
| CN202735485U (en) | Motor operation detecting device | |
| CN103246269B (en) | Comprehensive monitoring device for conveying chain of coal sorting machine | |
| CN208520583U (en) | Rotating machinery fault monitors system | |
| CN214067191U (en) | Closed weighing coal feeder rotating speed measuring device and coal feeder | |
| CN107539749A (en) | A kind of charging belt material tracking and the method and its device of detection of skidding | |
| CN107499862A (en) | A kind of coal sample detection line line speed detection method, device and conveyer belt | |
| CN110525915A (en) | Belt conveyor and belt slippage detection method | |
| CN211337702U (en) | Adhesive tape running speed and slip detection device | |
| CN206020453U (en) | The slow-speed of revolution based on speed probe rotates mechanical stppage alarm protection device | |
| CN211444677U (en) | Detection equipment with deviation protection function for escalator handrail | |
| CN211168689U (en) | Early warning device for preventing conveying belt from stopping and blocking | |
| CN112082172B (en) | Coal pulverizing and feeding control system for boiler of thermal power plant and control method thereof | |
| CN208537574U (en) | The testing agency of steam turbine transmission shaft in operation | |
| US10744518B2 (en) | Method for monitoring a screw centrifuge to identify dynamic changes in relative angular offset between an output shaft and a transmission input shaft | |
| CN116142726A (en) | Fault monitoring and early warning system of scraper conveyor chain transmission system | |
| CN203232046U (en) | Wind turbine impeller rotation speed measuring and monitoring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |