A distributed continuous monitoring and alarm system for the offset change of belt conveyors

Abstract

A continuous monitoring and alarm system for the offset change of a distributed belt conveyor discloses a monitoring and alarm system that, when the conveyor belt is offset, presses on the pressure sensors of the offset monitoring and alarm device, determines the offset change of the conveyor belt according to the positions of the pressed pressure sensors, and gives an alarm in a timely manner. The system is distributed on the conveyor belt and can continuously monitor the offset of the conveyor belt in segments. It is characterized by including an offset monitoring and alarm device and a monitoring background. A signal interaction is established between the offset monitoring and alarm device and the monitoring background. A plurality of the offset monitoring and alarm devices are equidistantly arranged on the belt conveyor frame along the length direction of the belt conveyor, and are located below the conveyor belt of the belt conveyor and in contact with the conveyor belt, and are used for collecting data and continuously monitoring the pressure of the pressure sensors when the conveyor belt runs off track.

Description

Technical Field

[0001] A continuous monitoring and alarm system for the offset change amount of a distributed belt conveyor according to the present invention relates to a system for continuously monitoring and alarming the offset change amount of a distributed belt conveyor, and belongs to the technical field of belt conveyors. Background Art

[0002] A belt conveyor is an indispensable economic logistics conveying equipment for forming a rhythmic assembly line. After long-term operation, due to unbalanced tension, object eccentric loading, lateral thrust, frame deformation, etc., the phenomenon of belt deviation of the conveyor belt is likely to occur in traditional belt conveyors, which not only affects the transportation efficiency of the belt conveyor, but also causes material dropping and unnecessary losses. When the conveyor belt of the belt conveyor deviates, the traditional method is to stop the machine first and then manually adjust the deviated belt. However, it is difficult to detect the deviation of the conveyor belt in time manually, and some materials on the conveyor belt have dropped before the deviation is corrected by stopping the machine, resulting in certain losses. Summary of the Invention

[0003] In order to improve the above situation, a continuous monitoring and alarm system for the offset change amount of a distributed belt conveyor according to the present invention provides a monitoring and alarm system that determines the offset change amount of the conveyor belt according to the position of the pressure sensor pressed by the conveyor belt when it deviates, and gives an alarm in time. The system is distributed on the conveyor belt and can continuously monitor the offset amount of the conveyor belt in segments.

[0004] A continuous monitoring and alarm system for the offset change amount of a distributed belt conveyor according to the present invention is implemented as follows: The continuous monitoring and alarm system for the offset change amount of a distributed belt conveyor according to the present invention includes an offset monitoring and alarm device and a monitoring background.

[0005] Preferably, the offset monitoring and alarm device and the monitoring background establish signal interaction.

[0006] A plurality of the offset monitoring and alarm devices are equidistantly arranged on the belt conveyor frame along the length direction of the belt conveyor, and are located below the conveyor belt of the belt conveyor and in contact with the conveyor belt, and are used for collecting data and continuously monitoring the pressure of the pressure sensor when the conveyor belt deviates.

[0007] The present invention also relates to an offset monitoring and alarm device, and the offset monitoring and alarm device includes a conveying component and a monitoring component.

[0008] It is characterized in that the monitoring component is arranged in the conveying component and is used for collecting data and continuously monitoring the pressure of the pressure sensor when the conveyor belt deviates.

[0009] Preferably, multiple groups of the conveying components are equidistantly distributed along the length direction of the conveyor belt.

[0010] The conveying assembly consists of an audible and visual alarm, conveying inclined rollers, an annular rubber ring, inclined roller bearings, main roller bearings, a conveying main roller, a support shaft, a wire groove, and a monitoring box placement groove.

[0011] The support shaft is arranged on the conveyor frame.

[0012] Preferably, the cross-section of the support shaft is a circular structure. The middle part of the support shaft is horizontal, serving as a horizontal support part, and both ends are bent obliquely upward to form inclined support parts.

[0013] Preferably, the included angle between the center line of the inclined support part of the support shaft and the center line of the horizontal support part is an obtuse angle.

[0014] A monitoring box placement groove is opened in the middle of the horizontal support part of the support shaft, and a wire groove is opened in the inclined support part of the support shaft. The wire groove is communicated with the monitoring box placement groove.

[0015] The conveying main roller is sleeved on the horizontal support part of the support shaft, and the conveying main roller is rotatably connected to the horizontal support part of the support shaft through a main roller bearing.

[0016] The conveying inclined roller is sleeved on the inclined support part of the support shaft, and the conveying inclined roller is rotatably connected to the inclined support part of the support shaft through a plurality of inclined roller bearings.

[0017] An audible and visual alarm is arranged at the end of the conveying inclined roller.

[0018] An installation groove is opened on the conveying inclined roller.

[0019] The installation groove is an annular through groove, and a single installation groove is located between two adjacent inclined roller bearings.

[0020] The installation groove is communicated with the wire groove.

[0021] The annular rubber ring is placed on the notch of the installation groove.

[0022] The monitoring assembly consists of a pressure sensor, a monitoring box, a telescopic rod, a monitoring contact, a telescopic spring, a telescopic cylinder, and a pressure plate.

[0023] The telescopic cylinder is located in the installation groove, and the bottom of the telescopic cylinder is connected to the support shaft.

[0024] Preferably, the bottom of the telescopic cylinder is an open structure, and a limiting ring is arranged at the opening of the telescopic cylinder.

[0025] The pressure sensor is placed at the bottom of the telescopic cylinder, and the pressure sensor passes through the bottom of the telescopic cylinder and is connected to the support shaft.

[0026] The pressure plate is placed on the pressure sensor. One side of the pressure plate is connected to the pressure sensor, and the other side is connected to one end of the telescopic spring.

[0027] One end of the telescopic rod is slidably placed in the telescopic cylinder, and the limit plate is slidably arranged in the telescopic cylinder. The limit plate is connected to the other end of the telescopic spring.

[0028] Preferably, the limit plate corresponds to the limit ring.

[0029] Preferably, the side surface of the limit plate is in contact with the inner wall of the telescopic cylinder.

[0030] The other end of the telescopic rod passes through the opening of the telescopic cylinder and extends into the installation groove. A monitoring contact is arranged at the other end of the telescopic rod, and the monitoring contact is in contact with the annular rubber ring.

[0031] Preferably, the cross-section of the monitoring contact is an arc structure. The arc surface of the monitoring contact is in contact with the annular rubber ring, and the surface of the monitoring contact is smooth.

[0032] The monitoring box is placed in the monitoring box placement groove. A central processor and a controller are arranged in the monitoring box. A signal conversion module and a data processing module are arranged in the central processor. The monitoring box is connected to the pressure sensor through a power cord, and the sound and light alarm is connected to the controller in the monitoring box through an electric wire.

[0033] The present invention also relates to a method for continuously monitoring and alarming the offset change amount of a distributed belt conveyor, including the following steps:

[0034] 1) In the initial situation, a plurality of deviation correction monitoring and alarming devices are installed on the belt conveyor frame, so that the main conveying roller, the conveying inclined roller and the conveyor belt are in contact. When the conveyor belt runs, the main conveying roller and the conveying inclined roller rotate along with the conveyor belt.

[0035] 2) Number the plurality of deviation correction monitoring and alarming devices respectively, such as 1, 2, 3..., and perform secondary numbering on the pressure sensors on the same deviation correction monitoring and alarming device, such as 1.1, 1.2, 1.3...;

[0036] 3) When the conveyor belt deviates, the conveyor belt will gradually move towards one side of the conveying inclined roller and press on the annular rubber ring on the conveying inclined roller, so that the monitoring contact together with the telescopic rod moves downward, and then the telescopic spring is compressed to generate pressure on the pressure plate.

[0037] 4) The pressure sensor collects and continuously monitors the pressure, and sends the pressure monitoring data and its own number to the central processor in the corresponding monitoring box.

[0038] 5) After receiving the pressure monitoring data, the signal conversion module of the central processing unit converts it into a specific pressure parameter value. The data processing module compares and analyzes the pressure parameter value and the set pressure threshold range. When the pressure parameter value exceeds the pressure threshold range, it means that the conveyor belt deviates to the position of the pressure sensor and the pressure sensor is under pressure. At this time, the central processing unit sends an alarm signal to the controller in the deviation monitoring alarm device;

[0039] 6) After receiving the alarm signal, the controller controls the sound and light alarm in the deviation monitoring alarm device to start the sound and light alarm;

[0040] 7) The data processing module of the central processor determines the displacement change of the conveyor belt according to the specific pressure sensor number pressed by the conveyor belt and the positional relationship between the pressure sensor and the conveyor belt in the initial state, and sends the displacement change and the number of the monitoring alarm device to the monitoring background;

[0041] Preferably, the distance between two adjacent pressure sensors on the deviation correction alarm device is determined during installation and recorded in the corresponding central processor;

[0042] 8) After the monitoring background receives the offset change, it determines the offset of the conveyor belt according to the number and its corresponding offset change, and controls the offset change parameter value of the corresponding number monitoring alarm device on the monitoring background monitoring screen to flash and change color to remind the monitoring personnel. Beneficial Effects

[0043] 1. It can continuously monitor the deviation change of the conveyor belt.

[0044] 2. It can send timely alarm reminders to the monitoring background.

[0045] 3. The conveyor belt deviation position can be warned on site through sound and light alarms. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 It is a three-dimensional structural diagram of the deviation monitoring and alarm device of the present invention;

[0047] Figure 2 It is a structural schematic diagram of the deviation monitoring and alarm device of the present invention;

[0048] Figure 3 It is a structural schematic diagram of the deviation monitoring and alarm device of the present invention, which only shows the structure of the monitoring component;

[0049] Attached photos

[0050] Among them are: the sound and light alarm 1, the conveying inclined roller 2, the annular rubber ring 3, the conveyor belt 4, the fixed chassis 5, the pressure sensor 6, the inclined roller bearing 7, the support shaft 8, the main roller bearing 9, the conveying main roller 10, the monitoring box 11, the telescopic rod 12, the monitoring contact 13, the telescopic spring 14, the telescopic cylinder 15, the wire groove 16, the pressure plate 17, the monitoring box placement groove 18, and the installation groove 19 Detailed implementation mode

[0051] A distributed belt conveyor deviation change amount continuous monitoring and alarm system of the present invention includes a deviation monitoring and alarm device and a monitoring background,

[0052] Preferably, a signal interaction is established between the deviation monitoring and alarm device and the monitoring background,

[0053] A plurality of the deviation monitoring and alarm devices are equidistantly arranged on the belt conveyor frame along the length direction of the belt conveyor, and are located below the conveyor belt 4 of the belt conveyor and in contact with the conveyor belt 4, and are used for collecting data and continuously monitoring the pressure of the pressure sensor 6 when the conveyor belt 4 deviates,

[0054] The present invention also relates to a deviation monitoring and alarm device, and the deviation monitoring and alarm device includes a conveying component and a monitoring component,

[0055] Characterized in that the monitoring component is arranged in the conveying component and is used for collecting data and continuously monitoring the pressure of the pressure sensor 6 when the conveyor belt 4 deviates,

[0056] Preferably, multiple groups of the conveying components are equidistantly distributed along the length direction of the conveyor belt 4,

[0057] The conveying component is composed of a sound and light alarm 1, a conveying inclined roller 2, an annular rubber ring 3, an inclined roller bearing 7, a main roller bearing 9, a conveying main roller 10, a support shaft 8, a wire groove 16, and a monitoring box placement groove 18,

[0058] The support shaft 8 is arranged on the conveyor frame,

[0059] Preferably, the cross-section of the support shaft 8 is a circular structure, the middle part of the support shaft 8 is horizontal and is a horizontal support part, and both ends are bent obliquely upward to form an inclined support part,

[0060] Preferably, the included angle between the center line of the inclined support part of the support shaft 8 and the center line of the horizontal support part is an obtuse angle,

[0061] A monitoring box placement groove 18 is opened in the middle of the horizontal support part of the support shaft 8, a wire groove 16 is opened in the inclined support part of the support shaft 8, and the wire groove 16 is communicated with the monitoring box placement groove 18,

[0062] Ten main conveying rollers are placed on the horizontal supporting part of the supporting shaft 8, and the main conveying rollers 10 and the horizontal supporting part of the supporting shaft 8 are rotationally connected through main roller bearings 9.

[0063] Two inclined conveying rollers are placed on the inclined supporting part of the supporting shaft 8, and the inclined conveying rollers 2 and the inclined supporting part of the supporting shaft 8 are rotationally connected through a plurality of inclined roller bearings 7.

[0064] An audible and visual alarm 1 is arranged at the end of the inclined conveying roller 2.

[0065] An installation groove 19 is formed in the inclined conveying roller 2.

[0066] The installation groove 19 is an annular through groove, and a single installation groove 19 is located between two adjacent inclined roller bearings 7.

[0067] The installation groove 19 communicates with the wire groove 16.

[0068] An annular rubber ring 3 is placed on the notch of the installation groove 19.

[0069] The monitoring component is composed of a pressure sensor 6, a monitoring box 11, a telescopic rod 12, a monitoring contact 13, a telescopic spring 14, a telescopic cylinder 15 and a pressure plate 17.

[0070] The telescopic cylinder 15 is located in the installation groove 19, and the bottom of the telescopic cylinder 15 is connected to the supporting shaft 8.

[0071] Preferably, the bottom of the telescopic cylinder 15 is of an open structure, and a limiting ring is arranged at the mouth of the telescopic cylinder 15.

[0072] The pressure sensor 6 is placed at the bottom of the telescopic cylinder 15, and the pressure sensor 6 passes through the bottom of the telescopic cylinder 15 and is connected to the supporting shaft 8.

[0073] The pressure plate 17 is placed on the pressure sensor 6. One side of the pressure plate 17 is connected to the pressure sensor 6, and the other side is connected to one end of the telescopic spring 14.

[0074] One end of the telescopic rod 12 is slidably placed in the telescopic cylinder 15, and a limiting plate is slidably arranged in the telescopic cylinder 15. The limiting plate is connected to the other end of the telescopic spring 14.

[0075] Preferably, the limiting plate corresponds to the limiting ring.

[0076] Preferably, the side surface of the limiting plate is in contact with the inner wall of the telescopic cylinder 15.

[0077] The other end of the telescopic rod 12 extends into the installation groove 19 through the mouth of the telescopic cylinder 15. A monitoring contact 13 is arranged at the other end of the telescopic rod 12, and the monitoring contact 13 is in contact with the annular rubber ring 3.

[0078] Preferably, the cross section of the monitoring contact 13 is an arc-shaped structure, the arc-shaped surface of the monitoring contact 13 is in contact with the annular rubber ring 3, and the surface of the monitoring contact 13 is smooth.

[0079] The monitoring box 11 is placed in the monitoring box placement slot 18, the monitoring box 11 has a built-in central processing unit and a controller, the central processing unit has a built-in signal conversion module and a data processing module, the monitoring box 11 and the pressure sensor 6 are connected through a power line, and the sound and light alarm 1 and the controller in the monitoring box 11 are connected through wires;

[0080] Preferably, the monitoring contact 13 is made of styrene-butadiene rubber material, which is also called polystyrene butadiene copolymer. Its physical structure performance, processing performance and product performance are close to those of natural rubber. Some properties such as wear resistance, heat resistance, aging resistance and vulcanization speed are better than those of natural rubber. It can be used together with natural rubber and various synthetic rubbers.

[0081] The present invention provides a distributed belt conveyor displacement change continuous monitoring and alarm method, comprising the following steps:

[0082] 1) In the initial state, multiple deviation correction monitoring and alarm devices are installed on the belt conveyor frame, so that the conveying main roller 10, the conveying oblique roller 2 and the conveying belt 4 are in contact. When the conveying belt 4 is running, the conveying main roller 10 and the conveying oblique roller 2 rotate with the conveying belt 4;

[0083] 2) The plurality of deviation correction monitoring and alarm devices are numbered respectively, such as 1, 2, 3, ..., and the pressure sensors 6 on the same deviation correction monitoring and alarm device are numbered in a second level, such as 1.1, 1.2, 1.3, ...;

[0084] 3) When the conveyor belt deviates, the conveyor belt will gradually move toward the conveying inclined roller 2 on one side, pressing on the annular rubber ring 3 on the conveying inclined roller 2, so that the monitoring contact 13 and the telescopic rod 12 move downward, thereby compressing the telescopic spring 14 to generate pressure on the pressure plate 17;

[0085] 4) The pressure sensor 6 collects and continuously monitors the pressure data, and sends the pressure monitoring data and its own number to the central processor in the corresponding monitoring box 11;

[0086] 5) After receiving the pressure monitoring data, the signal conversion module of the central processing unit converts it into a specific pressure parameter value. The data processing module compares and analyzes the pressure parameter value with the set pressure threshold range. When the pressure parameter value exceeds the pressure threshold range, it means that the conveyor belt 4 is offset to the position of the pressure sensor 6 and the pressure sensor 6 is under pressure. At this time, the central processing unit sends an alarm signal to the controller in the offset monitoring alarm device;

[0087] 6) After the controller receives the alarm signal, it controls the sound and light alarm 1 in the offset monitoring alarm device to start for sound and light alarm;

[0088] 7) The data processing module of the central processing unit determines the offset change amount of the conveyor belt 4 according to the specific pressure sensor 6 number pressed by the conveyor belt 4 and the positional relationship between this pressure sensor 6 and the conveyor belt 4 in the initial state, and sends the offset change amount and the number of this monitoring alarm device to the monitoring background;

[0089] Preferably, the distance between two adjacent pressure sensors 6 on the deviation correction alarm device has been determined during installation and recorded in the corresponding central processing unit;

[0090] 8) After the monitoring background receives the offset change amount, it determines the offset amount at the offset of the conveyor belt 4 according to the number and its corresponding offset change amount, and controls the offset change amount parameter value of the monitoring alarm device with the corresponding number on the monitoring background monitoring screen to display the number flashing and change color to remind the monitoring personnel;

[0091] The design that multiple groups of the conveying components are equidistantly distributed along the length direction of the conveyor belt 4 can segmentally monitor the conveyor belt 4 without affecting the transportation of the conveyor belt 4, and promptly detect the offset in the conveying direction of the conveyor belt 4 and give an alarm;

[0092] The design that the inclined support part of the support shaft 8 cooperates with the conveying inclined roller 2 to support the conveyor belt 4 can limit the conveyor belt 4 and slow down the offset speed of the conveyor belt 4, leaving sufficient reaction time for deviation correction;

[0093] The design that the installation groove 19 cooperates with the annular rubber ring 3 to block the notch of the installation groove 19 can protect the monitoring components therein, prevent external dust, water vapor, etc. from entering the pressure sensor 6 through the installation groove 19 and causing damage to the pressure sensor 6, and unable to continuously monitor the offset change amount of the conveyor belt 4;

[0094] The design that the cross-section of the monitoring contact 13 is an arc structure can make the part of the annular rubber ring 3 it supports be an arc structure, which will not block the conveyor belt 4, is convenient for the conveyor belt 4 to press on the annular rubber ring 3 when offset, and better conducts the pressure;

[0095] The monitoring contact 13 cooperates with the telescopic rod 12, and can move downward when the conveyor belt 4 offsets and presses on the annular rubber ring 3, compressing the telescopic spring 14 to generate pressure on the pressure plate 17, which is convenient for continuously monitoring the offset change amount of the conveyor belt 4 through the pressure sensor 6;

[0096] The monitoring box 11 cooperates with the sound and light alarm 1, and can control the sound and light alarm 1 to give an alarm in time when the conveyor belt 4 offsets;

[0097] When it reaches and presses on the pressure sensor 6 of the deviation monitoring and alarming device during the deviation of the conveyor belt 4, the deviation change amount of the conveyor belt 4 is determined according to the position of the pressed pressure sensor 6, and the purpose of timely alarming is achieved.

[0098] The above embodiments are preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Any ordinary technician in the art can make some improvements without departing from the scope of the present invention. That is, all equivalent improvements made in accordance with the present invention should be covered by the scope of the present invention.

Claims

1. A continuous monitoring and alarm system for the offset change amount of a distributed belt conveyor, comprising an offset monitoring and alarm device and a monitoring background, Characterized in that: The offset monitoring and alarm device establishes signal interaction with the monitoring background. A plurality of the offset monitoring and alarm devices are equidistantly arranged on the belt conveyor frame along the length direction of the belt conveyor, and are located below the belt conveyor belt and in contact with the belt, for collecting and continuously monitoring the pressure of the pressure sensor when the belt deviates. The offset monitoring and alarm device includes a conveying component and a monitoring component. The monitoring component is arranged in the conveying component, for collecting and continuously monitoring the pressure of the pressure sensor when the belt deviates. Multiple groups of the conveying components are equidistantly distributed along the length direction of the belt. The conveying component is composed of an audible and visual alarm, a conveying inclined roller, an annular rubber ring, an inclined roller bearing, a main roller bearing, a conveying main roller, a support shaft, a wire groove, and a monitoring box placement groove. The support shaft is arranged on the conveyor frame. The cross-section of the support shaft is a circular structure. The middle part of the support shaft is horizontal, which is the horizontal support part, and both ends are bent obliquely upward to form inclined support parts. A monitoring box placement groove is opened in the middle of the horizontal support part of the support shaft. A wire groove is opened in the inclined support part of the support shaft. The wire groove is communicated with the monitoring box placement groove. The conveying main roller is sleeved on the horizontal support part of the support shaft. The conveying main roller and the horizontal support part of the support shaft are rotationally connected through the main roller bearing. The conveying inclined roller is sleeved on the inclined support part of the support shaft. The conveying inclined roller and the inclined support part of the support shaft are rotationally connected through a plurality of inclined roller bearings. The audible and visual alarm is arranged at the end of the conveying inclined roller. An installation groove is opened on the conveying inclined roller. The installation groove is an annular through groove. A single installation groove is located between two adjacent inclined roller bearings. The installation groove is communicated with the wire groove. The annular rubber ring is placed at the notch of the installation groove. The monitoring component is composed of a pressure sensor, a monitoring box, a telescopic rod, a monitoring contact, a telescopic spring, a telescopic cylinder, and a pressure plate. The telescopic cylinder is located in the installation groove. The bottom of the telescopic cylinder is connected to the support shaft. The bottom of the telescopic cylinder is an open structure. A limiting ring is arranged at the opening of the telescopic cylinder. The pressure sensor is placed at the bottom of the telescopic cylinder. The pressure sensor passes through the bottom of the telescopic cylinder and is connected to the support shaft. The pressure plate is placed on the pressure sensor. One side of the pressure plate is connected to the pressure sensor, and the other side is connected to one end of the telescopic spring. One end of the telescopic rod is slidably placed in the telescopic cylinder. The limiting plate is slidably arranged in the telescopic cylinder. The limiting plate is connected to the other end of the telescopic spring. The limiting plate corresponds to the limiting ring. The other end of the telescopic rod passes through the opening of the telescopic cylinder and extends into the installation groove. The monitoring contact is arranged at the other end of the telescopic rod. The monitoring contact is in contact with the annular rubber ring. The monitoring box is placed in the monitoring box placement groove. A central processor and a controller are arranged in the monitoring box. A signal conversion module and a data processing module are arranged in the central processor. The monitoring box and the pressure sensor are connected through a power line. The audible and visual alarm and the controller in the monitoring box are connected through a wire. The cross-section of the monitoring contact is an arc structure. The arc surface of the monitoring contact is in contact with the annular rubber ring, and the part of the annular rubber ring that it can support is an arc structure, which will not block the belt.It is convenient for the conveyor belt to press on the annular rubber ring when it is offset, and better conduct the pressure.

2. The continuous monitoring and alarm system for the offset change amount of a distributed belt conveyor according to claim 1, Characterized in that The included angle between the center line of the inclined support part of the support shaft and the center line of the horizontal support part is an obtuse angle.

3. The continuous monitoring and alarm system for the offset change amount of a distributed belt conveyor according to claim 1, Characterized in that The side surface of the limit plate is in contact with the inner wall of the telescopic cylinder.

4. The continuous monitoring and alarm system for the offset change amount of a distributed belt conveyor according to claim 1, Characterized in that The surface of the monitoring contact is smooth.

5. The continuous monitoring and alarm system for the offset change amount of a distributed belt conveyor according to claim 1, Characterized in that Multiple groups of the conveying components are equidistantly distributed along the length direction of the conveyor belt, and can segmentally monitor the conveyor belt without affecting the conveyor belt transportation, and timely detect the offset in the conveyor belt conveying direction and give an alarm.

6. The continuous monitoring and alarm system for the offset change amount of a distributed belt conveyor according to claim 1, Characterized in that The inclined support part of the support shaft cooperates with the conveying inclined roller to support the conveyor belt, which can limit the conveyor belt and slow down the offset speed of the conveyor belt, leaving sufficient reaction time for rectification.

7. The continuous monitoring and alarm system for the offset change amount of a distributed belt conveyor according to claim 1, Characterized in that The installation groove cooperates with the annular rubber ring to block the notch of the installation groove, which can protect the monitoring components therein, prevent external dust, water vapor, etc. from entering the pressure sensor through the installation groove and causing damage to the pressure sensor, and unable to continuously monitor the offset change amount of the conveyor belt.

8. A continuous monitoring and alarm method for the offset change amount of a distributed belt conveyor, Characterized in that: Specifically includes the following steps: 1) In the initial situation, multiple offset monitoring and alarm devices are installed on the belt conveyor frame, so that the main conveying roller, the conveying inclined roller and the conveyor belt are in contact. When the conveyor belt runs, the main conveying roller and the conveying inclined roller rotate following the conveyor belt; 2) Number the multiple offset monitoring and alarm devices respectively, such as 1, 2, 3…, and perform secondary numbering on the pressure sensors on the same offset monitoring and alarm device, such as 1.1, 1.2, 1.3…; 3) When the conveyor belt is offset, the conveyor belt will gradually move towards one side of the conveying inclined roller, press on the annular rubber ring on the conveying inclined roller, so that the monitoring contact together with the telescopic rod moves downward, and then the telescopic spring is compressed to generate pressure on the pressure plate; 4) The pressure sensor collects and continuously monitors the pressure, and sends the pressure monitoring data and its own number to the central processor in the corresponding monitoring box; 5) After receiving the pressure monitoring data, the signal conversion module of the central processing unit converts it into a specific pressure parameter value. The data processing module compares and analyzes the pressure parameter value and the set pressure threshold range. When the pressure parameter value exceeds the pressure threshold range, it means that the conveyor belt deviates to the position of the pressure sensor and the pressure sensor is under pressure. At this time, the central processing unit sends an alarm signal to the controller in the deviation monitoring alarm device; 6) After receiving the alarm signal, the controller controls the sound and light alarm in the deviation monitoring alarm device to start the sound and light alarm; 7) The data processing module of the central processing unit determines the displacement change of the conveyor belt according to the specific pressure sensor number pressed by the conveyor belt and the positional relationship between the pressure sensor and the conveyor belt in the initial state, and sends the displacement change and the number of the displacement monitoring alarm device to the monitoring background; the distance between two adjacent pressure sensors on the displacement monitoring alarm device is determined during installation and recorded in the corresponding central processing unit; 8) After the monitoring background receives the offset change, it determines the offset of the conveyor belt according to the number and its corresponding offset change, and controls the offset change parameter value of the corresponding number offset monitoring alarm device on the monitoring background monitoring screen to flash and change color to remind the monitoring personnel.

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