Belt conveyor along-line temperature measurement system and method

Abstract

The invention belongs to the technical field of belt conveyors, and particularly discloses a belt conveyor along-line temperature measurement system and method. According to the equipment and the method, a passive RFID temperature measurement sensor is arranged on a carrier roller frame of the belt conveyor, the passive RFID temperature measurement sensor corresponds to the carrier roller frame, the passive RFID temperature measurement sensor senses the temperature of the carrier roller frame of the belt conveyor in real time, the temperature of a carrier roller is reflected by the temperature of the carrier roller frame, and the temperature of the carrier roller is measured by the passive RFID temperature measurement sensor. The traction device drives the card reader to move between the machine head and the machine tail of the belt conveyor; when the card reader moves to the sensing range of any passive RFID temperature measurement sensor, the SN code of the passive RFID temperature measurement sensor and temperature data monitored by the passive RFID temperature measurement sensor are read; when the card reader moves to the sensing range of the wireless receiver, the card reader transmits the read SN code and temperature data to the wireless receiver; the upper computer processes the SN code and the temperature data received by the wireless receiver and outputs feedback information; therefore, the temperature of the key part of the rack along the belt conveyor can be monitored in time, the implementation cost is low, and the popularization and application value is high.

Description

Technical Field

[0001] The invention belongs to the technical field of belt conveyors, and in particular relates to a temperature measurement system and method along a belt conveyor. Background Art

[0002] Belt conveyor is an important bulk material conveying equipment. Whether it is a short-distance small conveying volume or a long-distance large conveying volume, it has better economy than other modes of transportation. Therefore, belt conveyor is widely used in metallurgy, coal mining, ports, cement, electric power and other industries.

[0003] The belt conveyor is mainly composed of a drive device, a frame, rollers, a conveyor belt, a roller, a tensioning device, etc. Among them, the rollers support the weight of the conveyor belt and the material, and bear most of the resistance when the conveyor belt is running. After the rollers have been running for a long time in a humid and dusty environment, they are prone to failures such as bearing jamming and roller failure. The rollers’ failure to rotate will cause the surface and the belt to slide and rub against each other, resulting in a temperature rise, which can easily shorten the life of the belt and cause hidden dangers such as high-temperature fire. In addition, when the frame of the belt conveyor is deformed due to insufficient rigidity, the rotating rollers will rub against the frame, causing the temperature of the parts in contact with the frame or rollers to rise, creating a fire hazard. It can be seen that monitoring the temperature of key parts of the frame along the belt conveyor can prevent fire hazards caused by frame deformation and roller failure. At present, distributed optical fiber can be used to monitor fires along the conveyor, but because the optical cable relies on heat conduction to detect temperature, there is only a single point of contact between the optical cable and the frame, and the detection range is very small. It can only be effectively detected after a fire occurs, and no early warning can be given. Therefore, it is currently difficult to effectively monitor the temperature of key parts of the frames along the conveyor, or the implementation cost is high and the economy is poor. Summary of the invention

[0004] The object of the present invention is to provide a temperature measurement system and method along a belt conveyor, so as to monitor the temperature of key parts of a frame along the belt conveyor at a relatively low cost.

[0005] In order to achieve the above object, the technical solutions adopted by the present invention are as follows:

[0006] A temperature measurement system along a belt conveyor, comprising:

[0007] A traction device is arranged on one side of the belt conveyor;

[0008] The card reader is driven by the traction device to move between the head and tail of the belt conveyor;

[0009] The passive RFID temperature sensor is arranged on the roller frame of the belt conveyor and communicates with the card reader by wireless radio frequency. When the card reader moves to the sensing range of the passive RFID temperature sensor, the SN code of the passive RFID temperature sensor and the temperature data it monitors are read;

[0010] The wireless receiver is arranged at the head and / or tail of the belt conveyor and communicates wirelessly with the card reader. When the card reader moves to the sensing range of the wireless receiver, the card reader transmits the read SN code and temperature data to the wireless receiver;

[0011] The host computer is connected to the wireless receiver signal and processes the SN code and temperature data received by the wireless receiver.

[0012] Furthermore, the traction device includes a head roller, a tail roller, a traction rope and a driving mechanism;

[0013] The head roller is arranged at the head position of the belt conveyor, the tail roller is arranged at the tail position of the belt conveyor, the traction rope is connected between the head roller and the tail roller, and the card reader is arranged on the traction rope;

[0014] The head roller and / or the tail roller are connected by the driving mechanism, and the driving mechanism drives the head roller and the tail roller to rotate forward or reversely, thereby driving the traction rope and the card reader to move toward the head or tail of the belt conveyor.

[0015] Furthermore, the driving mechanism includes a driving motor and an electromagnetic clutch, the output shaft of the driving motor is connected to the input end of the electromagnetic clutch, and the output end of the electromagnetic clutch is connected to the driving shaft of the head roller and / or the driving shaft of the tail roller.

[0016] Furthermore, it also includes a photoelectric encoder, which is used to monitor the number of revolutions of the drive motor, and the photoelectric encoder signal is connected to the wireless receiver;

[0017] The photoelectric encoder transmits the number of revolutions of the drive motor to the wireless receiver and is processed by the host computer.

[0018] Furthermore, the driving motor is an integrated motor and reducer.

[0019] Further, the card reader includes a control unit, a wireless radio frequency communication unit, a wireless communication unit, a storage unit, an RFID antenna and a wireless antenna;

[0020] The control unit is respectively connected to the wireless radio frequency communication unit, the wireless communication unit and the storage unit by signal, the wireless radio frequency communication unit is connected to the RFID antenna by signal, the wireless communication unit is connected to the wireless antenna by signal, the wireless radio frequency communication unit communicates wirelessly with the passive RFID temperature sensor via the RFID antenna, and the wireless communication unit communicates wirelessly with the wireless receiver via the wireless antenna.

[0021] Furthermore, the wireless receiver is configured as a WIFI receiver.

[0022] A method for measuring temperature along a belt conveyor, using the above-mentioned temperature measuring system along a belt conveyor, the method is as follows:

[0023] The traction device drives the card reader to move between the head and tail of the belt conveyor;

[0024] When the card reader moves to the sensing range of any passive RFID temperature sensor, it reads the SN code of the passive RFID temperature sensor and the temperature data it monitors;

[0025] When the card reader moves to the sensing range of the wireless receiver, the card reader transmits the read SN code and temperature data to the wireless receiver;

[0026] The host computer processes the SN code and temperature data received by the wireless receiver and outputs feedback information.

[0027] The beneficial technical effects of the present invention are:

[0028] The temperature measurement system and method along the belt conveyor of the present invention arranges a passive RFID temperature sensor on the roller frame of the belt conveyor, the passive RFID temperature sensor corresponds to the roller frame, the passive RFID temperature sensor senses the temperature of the roller frame of the belt conveyor in real time, and the temperature of the roller frame reflects the temperature of the key parts of the rack along the line, and each passive RFID temperature sensor has a unique SN code, and a traction device drives the card reader to move between the head and the tail of the belt conveyor; when the card reader moves to the sensing range of any passive RFID temperature sensor, the SN code of the passive RFID temperature sensor and the temperature data monitored by it are read; when the card reader moves to the sensing range of the wireless receiver, the card reader transmits the read SN code and temperature data to the wireless receiver; the upper computer processes the SN code and temperature data received by the wireless receiver and outputs feedback information; in this way, timely monitoring of the temperature of the key parts of the rack along the belt conveyor is realized, and the realization cost is low, and it has a high promotion and application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a layout diagram of a temperature measurement system along a belt conveyor according to an embodiment of the present invention;

[0030] Figure 2 This is a schematic diagram of the arrangement position of the passive RFID temperature measurement sensor according to an embodiment of the present invention;

[0031] Reference numerals:

[0032] 11. Head roller, 12. Tail roller, 13. Traction rope, 131. Rope tightener, 14. Driving motor, 15. Electromagnetic clutch, 16. Coupling, 17. Photoelectric encoder, 21. RFID antenna, 22. Wireless antenna, 3. Passive RFID temperature sensor, 4. Wireless receiver, 5. Belt conveyor, 51. Head, 52. Tail, 53. Roller frame, 54. Roller. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and beneficial effects of the present invention more clearly understood, the present invention is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. Certain embodiments of the present invention will be described more comprehensively with reference to the accompanying drawings, in which some but not all embodiments will be shown. In fact, the various embodiments of the present invention can be implemented in many different forms and should not be construed as being limited to the embodiments described herein; rather, these embodiments are provided so that the present invention meets applicable legal requirements.

[0034] In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", "front", "back" and the like indicate directions or positional relationships based on directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0035] In the embodiment of the present invention, a temperature measurement system and method along a belt conveyor are provided. Please refer to Figure 1 , Figure 2 shown.

[0036] A temperature measurement system along a belt conveyor includes a traction device, a card reader 2, a passive RFID temperature measurement sensor 3, a wireless receiver 4 and a host computer.

[0037] The traction device is arranged on one side of the belt conveyor 5, and the traction device drives the card reader 2 to move between the head 51 and the tail 52 of the belt conveyor 5. RFID is the abbreviation of Radio Frequency Identification, which is translated as wireless radio frequency identification. The passive RFID temperature sensor 3 is arranged on each group of roller frames 53 of the belt conveyor 5, and communicates with the card reader 2 by radio frequency. When the card reader 2 moves to the sensing range of the set passive RFID temperature sensor 3, the SN code of the passive RFID temperature sensor 3 and the temperature data monitored by it are read. The SN code of the passive RFID temperature sensor 3 corresponds to the roller frame 53 on which the passive RFID temperature sensor 3 is installed. The wireless receiver 4 is set as a WIFI receiver. The wireless receiver 4 is arranged at the head 51 and the tail 52 of the belt conveyor 5, and communicates with the card reader 2 by wireless radio frequency. When the card reader 2 moves to the sensing range of the wireless receiver 4, the card reader 2 transmits the read SN code and temperature data to the wireless receiver 4. The host computer is set as a computer, which is connected to the wireless receiver 4 via a signal cable signal, and processes the SN code and temperature data received by the wireless receiver 4.

[0038] The traction device includes a head roller 11, a tail roller 12, a traction rope 13 and a driving mechanism; the head roller 11 is arranged at the head 51 position of the belt conveyor 5, and the tail roller 12 is arranged at the tail 52 position of the belt conveyor 5, the traction rope 13 is connected between the head roller 11 and the tail roller 12, and the card reader 2 is set on the traction rope 13; the head roller 11 and the tail roller 12 are connected by the power of the driving mechanism, and the driving mechanism drives the head roller 11 and the tail roller 12 to rotate forward or reverse, thereby driving the traction rope 13 and the card reader 2 to move toward the head 51 or the tail 52 of the belt conveyor 5.

[0039] The traction rope 13 is configured as a steel wire rope, and is arranged in parallel with the belt conveyor 5 . A rope tightener 131 is provided on the traction rope 13 , and the traction rope 13 is tensioned by the rope tightener 131 .

[0040] The driving mechanism includes a driving motor 14 and an electromagnetic clutch 15. The driving motor 14 is an integrated AC motor and reducer. The output shaft of the driving motor 14 is connected to the input end of the electromagnetic clutch 15. The output end of the electromagnetic clutch 15 located at the head 51 is connected to the driving shaft of the head roller 11 via the coupling 16. The output end of the electromagnetic clutch 15 located at the tail 52 is connected to the driving shaft of the tail roller 12 via the coupling 16.

[0041] When the drive motor 14 at the machine head 51 is running, the electromagnetic clutch 15 at the machine tail 52 is disengaged; when the drive motor 14 at the machine tail 52 is running, the electromagnetic clutch 15 at the machine head 51 is disengaged.

[0042] The photoelectric encoder 17 is installed at the tail of the drive motor 14. The photoelectric encoder 17 is used to monitor the number of revolutions of the drive motor 14. The photoelectric encoder 17 is connected to the wireless receiver 4 via a signal cable. The photoelectric encoder 17 transmits the number of revolutions of the drive motor 14 to the wireless receiver 4 and is processed by the host computer.

[0043] The upper computer calculates the stroke of the traction rope 13 according to the number of revolutions of the driving motor 14 and the diameters of the head roller 11 and the tail roller 12, and then accurately determines the position of the card reader 2, realizes automatic and precise control of the movement of the card reader 2 between the head 51 and the tail 52 of the belt conveyor 5, and verifies it with the position of the SN code of the passive RFID temperature sensor 3.

[0044] The card reader 2 includes a control unit, a radio frequency communication unit, a wireless communication unit, a storage unit, an RFID antenna 21 and a wireless antenna 22. The card reader 2 has a built-in battery to power the control unit, the radio frequency communication unit and the wireless communication unit. The control unit is connected to the radio frequency communication unit and the wireless communication unit respectively, the radio frequency communication unit is connected to the RFID antenna 21, the wireless communication unit is connected to the wireless antenna 22, the radio frequency communication unit communicates with the passive RFID temperature sensor 3 via the RFID antenna 21, and the wireless communication unit communicates with the wireless receiver 4 via the wireless antenna 22. When the card reader 2 moves to the sensing range of a passive RFID temperature sensor 3, the SN code and the temperature data monitored by the passive RFID temperature sensor 3 are read by the radio frequency communication method, and the SN code and the temperature data monitored by the passive RFID temperature sensor 3 are stored in the storage unit. When the card reader 2 moves to the sensing range of the wireless receiver 4, the card reader 2 transmits the SN code and temperature data stored in the storage unit to the wireless receiver 4 via the wireless communication method.

[0045] The passive RFID temperature sensor 3 communicates with the card reader 2 by wireless radio frequency communication, and can be conveniently installed on the roller frame 53 of the belt conveyor 5. The passive RFID temperature sensor 3 is powered by induction, does not require battery power, and has low cost.

[0046] A method for measuring temperature along a belt conveyor, using the temperature measuring system along a belt conveyor described in this embodiment, the method is as follows:

[0047] The traction device drives the card reader 2 to move between the head 51 and the tail 52 of the belt conveyor 5;

[0048] When the card reader 2 moves to the sensing range of any passive RFID temperature sensor 3, the SN code of the passive RFID temperature sensor 3 and the temperature data monitored by the sensor are read;

[0049] When the card reader 2 moves to the sensing range of the wireless receiver 4, the card reader 2 transmits the read SN code and temperature data to the wireless receiver 4;

[0050] The host computer processes the SN code and temperature data received by the wireless receiver 4 and outputs feedback information. For example, when the temperature data monitored by a passive RFID temperature sensor 3 exceeds a threshold, the host computer outputs an alarm signal.

[0051] So far, the present embodiment has been described in detail in conjunction with the accompanying drawings. Based on the above description, those skilled in the art should have a clear understanding of the belt conveyor temperature measurement system and method of the present invention. The belt conveyor temperature measurement system and method of the present invention arrange the passive RFID temperature sensor 3 on the roller frame 53 of the belt conveyor 5. The passive RFID temperature sensor 3 corresponds to the roller frame 53. The passive RFID temperature sensor 3 senses the temperature of the roller frame 53 of the belt conveyor 5 in real time. The temperature of the roller frame 53 reflects the temperature of the key parts of the frame along the line. In addition, each passive RFID temperature sensor 3 has a unique SN code. The traction device drives the card reader 2 to move between the head 51 and the tail 52 of the belt conveyor 5; the reader When the card reader 2 moves to the sensing range of any passive RFID temperature sensor 3, the SN code of the passive RFID temperature sensor 3 and the temperature data monitored by it are read; when the card reader 2 moves to the sensing range of the wireless receiver 4, the card reader 2 transmits the read SN code and temperature data to the wireless receiver 4; the host computer processes the SN code and temperature data received by the wireless receiver 4 and outputs feedback information; in this way, timely monitoring of the temperature of key parts of the racks along the belt conveyor 5 can be achieved, and the implementation cost is low, and it has a high value of promotion and application.

[0052] Of course, the specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A temperature measurement system along a belt conveyor, characterized in that: include: A traction device is arranged on one side of the belt conveyor; The card reader is driven by the traction device to move between the head and tail of the belt conveyor; The passive RFID temperature sensor is arranged on the roller frame of the belt conveyor and communicates with the card reader by radio frequency. When the card reader moves to the sensing range of the passive RFID temperature sensor, the SN code of the passive RFID temperature sensor and the temperature data it monitors are read; The wireless receiver is arranged at the head and / or tail of the belt conveyor and communicates wirelessly with the card reader. When the card reader moves to the sensing range of the wireless receiver, the card reader transmits the read SN code and temperature data to the wireless receiver; The host computer is connected to the wireless receiver signal and processes the SN code and temperature data received by the wireless receiver.

2. A temperature measurement system along a belt conveyor according to claim 1, characterized in that: The traction device comprises a head drum, a tail drum, a traction rope and a driving mechanism; The head roller is arranged at the head position of the belt conveyor, the tail roller is arranged at the tail position of the belt conveyor, the traction rope is connected between the head roller and the tail roller, and the card reader is arranged on the traction rope; The head roller and / or the tail roller are connected by the driving mechanism, and the driving mechanism drives the head roller and the tail roller to rotate forward or reversely, thereby driving the traction rope and the card reader to move toward the head or tail of the belt conveyor.

3. A temperature measurement system along a belt conveyor according to claim 2, characterized in that: The driving mechanism includes a driving motor and an electromagnetic clutch, wherein the output shaft of the driving motor is connected to the input end of the electromagnetic clutch, and the output end of the electromagnetic clutch is connected to the driving shaft of the head roller and / or the driving shaft of the tail roller.

4. A belt conveyor temperature measurement system according to claim 3, characterized in that: It also includes a photoelectric encoder, which is used to monitor the number of revolutions of the drive motor, and the photoelectric encoder signal is connected to the wireless receiver; The photoelectric encoder transmits the number of revolutions of the drive motor to the wireless receiver and is processed by the host computer.

5. A temperature measurement system along a belt conveyor according to claim 3, characterized in that: The driving motor is a motor-reducer integrated machine.

6. A temperature measurement system along a belt conveyor according to claim 1, characterized in that: The card reader includes a control unit, a wireless radio frequency communication unit, a wireless communication unit, a storage unit, an RFID antenna and a wireless antenna; The control unit is respectively connected to the wireless radio frequency communication unit, the wireless communication unit and the storage unit by signal, the wireless radio frequency communication unit is connected to the RFID antenna by signal, the wireless communication unit is connected to the wireless antenna by signal, the wireless radio frequency communication unit communicates wirelessly with the passive RFID temperature sensor via the RFID antenna, and the wireless communication unit communicates wirelessly with the wireless receiver via the wireless antenna.

7. A temperature measurement system along a belt conveyor according to claim 1, characterized in that: The wireless receiver is configured as a WIFI receiver.

8. A method for measuring temperature along a belt conveyor, characterized in that: The temperature measurement system along the belt conveyor according to any one of claims 1 to 7 is applied, and the method is as follows: The traction device drives the card reader to move between the head and tail of the belt conveyor; When the card reader moves to the sensing range of any passive RFID temperature sensor, it reads the SN code of the passive RFID temperature sensor and the temperature data it monitors; When the card reader moves to the sensing range of the wireless receiver, the card reader transmits the read SN code and temperature data to the wireless receiver; The host computer processes the SN code and temperature data received by the wireless receiver and outputs feedback information.

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