Material accumulation detection device of belt conveyor

Abstract

The invention relates to the technical field of belt conveyors, and provides a material accumulation detection device of a belt conveyor, which comprises a supporting seat, a first bracket and a second bracket are mounted on the supporting seat, a second motor is mounted on the second bracket, a first rotating roller is fixedly connected to an output shaft of the second motor, and a second rotating roller is fixedly connected to the output shaft of the first rotating roller. A first support is installed on the supporting seat, a second rotary roller is rotatably installed on the first support, a conveying belt is installed on the first rotary roller and the second rotary roller, a first sliding plate and a second sliding plate are installed on the supporting seat in a sliding mode, screws are installed on the first sliding plate and the second sliding plate in a threaded mode, and a first connecting plate is fixedly connected to the upper portion of the first sliding plate. By means of the technical scheme, the problems that an existing material accumulation detection device of the belt conveyor cannot adjust the accumulation detection position and the detection sensitivity according to needs, and switching or synchronous detection between belt pressing detection and roller rotation resistance detection cannot be achieved are solved.

Description

Technical Field

[0001] The invention relates to the technical field of belt conveyors, and in particular to a material accumulation detection device for a belt conveyor. Background Art

[0002] Belt conveyor is a kind of transportation equipment widely used in industries, mining and logistics. Belt conveyor can effectively realize horizontal or inclined transportation of materials. In the process of material transportation, it is very important to ensure the accurate transportation and accumulation of materials. By using material accumulation detection device, accurate control of material transportation can be achieved, production efficiency can be improved, energy consumption can be reduced, and losses caused by equipment failure can be reduced. The existing belt conveyor material accumulation detection device still has some shortcomings.

[0003] The invention patent with the publication number of CN104097917A discloses a belt conveyor and a detection device for abnormal material accumulation. The belt conveyor and the detection device for abnormal material accumulation fundamentally solve the problem that various accidents occurred in the previous belt conveyor system due to the failure of the top supporting roller and the belt equipment to automatically stop. The device has good self-detection effect, sensitive control action, fast response speed, and can detect and automatically stop the operation of the belt conveyor according to the actual state of the accumulation of materials during the material conveying process of the belt conveyor, effectively solving the contradictions that occurred in the previous production, and making the safety of the equipment and environment of the production site fundamentally controlled. Although the above device can realize automatic shutdown, it cannot adjust the accumulation detection position and detection sensitivity according to the needs when using it, and the existing conveyor material accumulation detection device cannot switch or synchronously detect between the belt pressure detection and the roller rotation resistance detection. When the materials are concentratedly piled or the materials are laid flat, the same detection method cannot guarantee the effect of the accumulation detection, and different detection methods cannot be adaptively adjusted to adapt to different heavy materials. Summary of the invention

[0004] The present invention provides a material accumulation detection device for a belt conveyor, which solves the problem that the existing material accumulation detection device for a belt conveyor cannot adjust the accumulation detection position and detection sensitivity as needed, and cannot switch or synchronize detection between belt pressure detection and roller rotation resistance detection.

[0005] The technical solution of the present invention is as follows:

[0006] A material accumulation detection device for a belt conveyor comprises a support base, wherein a first bracket and a second bracket are installed on the support base, a second motor is installed on the second bracket, a first roller is fixedly connected to an output shaft of the second motor, a second roller is rotatably installed on the first bracket, a conveyor belt is installed on the first roller and the second roller, a first slide plate and a second slide plate are slidably installed on the support base, a screw rod is threadedly installed on the first slide plate and the second slide plate, a first connecting plate is fixedly connected above the first slide plate, a second connecting plate is fixedly connected above the second slide plate, a first detection component is installed on the first detection component, a first conductive plate is installed on the first detection component, and the first conductive plate is installed on the first detection component. A second conductive plate is fixedly connected to a conductive plate, a third conductive plate is slidably connected to the outer side of the second conductive plate, a second detection component is installed between the third conductive plate and the second connecting plate, a power supply and an alarm light are installed on the support seat, the power supply is connected to the first conductive plate on the second connecting plate, the alarm light is connected to the first conductive plate on the first connecting plate, a connecting block is installed on the first bracket, a rotating plate is rotatably connected to the connecting block, the rotating plate and the second rotating roller are fixedly connected, an electric push rod is fixedly provided on the first bracket, a connecting plate is fixedly connected to the electric push rod, a first motor is fixedly installed on the connecting plate, and the output shaft of the first motor is connected to the third detection component.

[0007] As a preferred solution of the present invention, the support seat, the first bracket and the second bracket are fixedly connected to form an integral structure, the first bracket and the second bracket are symmetrically distributed on both sides of the conveyor belt, and there is a gap between the conveyor belt and the first conductive plate.

[0008] As a preferred solution of the present invention, a guide rod is fixedly provided on the first bracket, and the guide rod runs through the interior of the connecting plate. The connecting plate and the guide rod are perpendicular to each other.

[0009] As a preferred solution of the present invention, the threads on both sides of the screw have opposite rotation directions, the screw and the support seat are rotationally connected, and the first slide plate and the second slide plate both form a sliding structure between the screw and the support seat.

[0010] As a preferred solution of the present invention, the first detection component includes an outer bushing fixedly connected to the first connecting plate and the second connecting plate, a connecting shaft is rotatably installed in the outer bushing, a torsion spring is fixedly connected between the outer bushing and the connecting shaft, and a third connecting plate is fixedly connected to the connecting shaft.

[0011] As a preferred solution of the present invention, a first docking groove for docking with the third connecting plate is provided on the first conductive plate, the third conductive plate forms a sliding structure with the first conductive plate through the second conductive plate, and a second docking groove for docking with the second detection component is provided on the third conductive plate.

[0012] As a preferred solution of the present invention, the first conductive plate, the second conductive plate and the third conductive plate are all bent, and the first conductive plate, the second conductive plate and the third conductive plate are evenly spaced on the first connecting plate and the second connecting plate.

[0013] As a preferred solution of the present invention, the second detection component has the same structure as the first detection component, and the second connecting plate is connected to the second detection component in the same manner as the first detection component.

[0014] As a preferred solution of the present invention, the third detection component includes a rotating shaft fixedly connected to the output shaft of the first motor, a first connecting rod fixedly connected to the rotating shaft, a second connecting rod fixedly connected around the first connecting rod, a rotating block is arranged on the outer side of the second connecting rod, the rotating block and the rotating plate are rotatably connected, a groove is opened on the rotating plate, a clamping block is fitted in the groove, pressure plates are slidably installed around the rotating block, and a spring is fixedly connected between the clamping block and the pressure plate.

[0015] As a preferred solution of the present invention, a cross groove is formed on the rotating block for the first connecting rod and the second connecting rod to move, and the distance between the second connecting rod and the first connecting rod gradually increases from the side close to the cross groove to the side away from the cross groove.

[0016] The working principle and beneficial effects of the present invention are:

[0017] 1. By setting the first conductive plate and the alarm light, when the conveyor belt transports materials, the conveyor belt will be pressed down, and the conveyor belt will press against the first conductive plates on the left and right sides of the device, so that the first conductive plates are bent. Since the first conductive plates themselves are bent, the two first conductive plates abut against each other to achieve the conductive function. The power supply can energize the alarm light, thereby realizing the material accumulation detection function. The device can change the distance between the two groups of first conductive plates by rotating the screw, so that the device can adjust the detection position according to the position of the material accumulation.

[0018] 2. The device is provided with a screw and a first conductive plate. The distance between the two groups of first conductive plates can be changed by rotating the screw. The screw can not only change the detection position, but also change the triggering conditions for the two groups of first conductive plates to be energized when the two groups of first conductive plates are close to each other, thereby changing the sensitivity of the device to detect deposits. When the two groups of first conductive plates are far away from each other, the weight of the material required to trigger the alarm light to light up increases. When the two groups of first conductive plates are close to each other, the weight of the material required to trigger the alarm light to light up decreases, thereby solving the problem that the existing conveyor material accumulation detection device cannot adjust the accumulation detection position and detection sensitivity as needed.

[0019] 3. By setting up the first detection component, the second detection component, the second conductive plate and the third conductive plate, since the first detection component and the second detection component have the same structure, the third conductive plate can be slid so that the third conductive plate can be docked with the second conductive component through the second docking groove, thereby increasing the pressure required when the two groups of first conductive plates are docked, so as to adapt to the accumulation detection of heavier materials.

[0020] 4. Through the third detection component set up, the front and rear positions of the first connecting rod and the second connecting rod on the third detection component can be adjusted, and the second connecting rod can abut against the pressure plate, so that the pressure plate changes the initial elastic force of the spring, thereby changing the degree of tightness between the clamping block and the rotating plate, so that the device can change the resistance between the rotating block and the rotating plate. When the resistance is large enough, torque transmission can be achieved through the rotating block and the rotating plate, thereby driving the second roller to rotate and drive the conveyor belt to work. When the material accumulated on the conveyor belt is too heavy, the resistance between the rotating block and the rotating plate is not enough to drive the conveyor belt to continue working. At this time, the rotating block will slide in the rotating plate, so that the device can realize the accumulation detection function when there is too much material on the conveyor belt as a whole. The device can switch or synchronously detect between belt pressure detection and roller rotation resistance detection, and can adapt to the use of different detection methods or two detection methods for simultaneous detection when materials are placed in a concentrated manner or when materials are laid flat. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] Figure 1 It is a schematic diagram of the overall structure of a material accumulation detection device for a belt conveyor of the present invention;

[0023] Figure 2 yes Figure 1 A magnified schematic diagram of the structure at center A;

[0024] Figure 3 yes Figure 1 A magnified schematic diagram of the structure at B in the middle;

[0025] Figure 4It is a schematic diagram of the connection structure between the rotating plate and the rotating block of the present invention;

[0026] Figure 5 yes Figure 4 A magnified schematic diagram of the structure at C in the middle;

[0027] Figure 6 It is a schematic diagram of the connection structure between the support seat and the first slide plate of the present invention;

[0028] Figure 7 It is a schematic diagram of the connection structure between the first slide plate and the first connecting plate of the present invention;

[0029] Figure 8 yes Figure 7 A magnified schematic diagram of the structure at D in the middle;

[0030] Fig. 9 It is a schematic diagram of the connection structure between the third conductive plate and the second detection component of the present invention.

[0031] Figure numerals: 1, support seat; 2, first bracket; 3, first roller; 4, second roller; 5, conveyor belt; 6, power supply; 7, alarm light; 8, first slide plate; 9, second slide plate; 10, first connecting plate; 11, second connecting plate; 12, screw; 13, first detection component; 1301, outer bushing; 1302, torsion spring; 1303, connecting shaft; 1304, third connecting plate; 14, first conductive plate; 15, second conductive plate; 16, third conductive plate; 17, first docking slot; 18, second docking slot; 19, second detection assembly; 20, connecting block; 21, rotating plate; 22, electric push rod; 23, connecting plate; 24, guide rod; 25, first motor; 26, third detection assembly; 2601, rotating shaft; 2602, first connecting rod; 2603, second connecting rod; 2604, rotating block; 2605, groove; 2606, block; 2607, spring; 2608, cross slot; 2609, pressure plate; 27, second bracket; 28, second motor. DETAILED DESCRIPTION

[0032] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Example 1

[0034] like Figure 1-Figure 9As shown, this embodiment proposes a material accumulation detection device for a belt conveyor, including a support base 1, a first bracket 2 and a second bracket 27 are installed on the support base 1, a second motor 28 is installed on the second bracket 27, a first roller 3 is fixedly connected to the output shaft of the second motor 28, a second roller 4 is rotatably installed on the first bracket 2, and a conveyor belt 5 is installed on the first roller 3 and the second roller 4. When the device is in normal use, the first roller 3 can be driven to rotate by the second motor 28, thereby driving the conveyor belt 5 to work and realizing material conveying. A first slide plate 8 and a second slide plate 9 are slidably mounted on the support seat 1, and a screw rod 12 is threadedly mounted on the first slide plate 8 and the second slide plate 9, a first connecting plate 10 is fixedly connected to the top of the first slide plate 8, and a second connecting plate 11 is fixedly connected to the top of the second slide plate 9, a first detection component 13 is mounted on the first connecting plate 10 and the second connecting plate 11, and a first conductive plate 14 is mounted on the first detection component 13, and the first slide plate 8 and the second slide plate 9 on both sides of the device are moved toward or away from each other by rotating the screw rod 12, thereby changing the spacing between the two groups of first conductive plates 14 on the left and right sides of the device, and when the spacing between the two groups of first conductive plates 14 is close enough, only a small amount of pressure is required to press down the two groups of first conductive plates 14, and the two groups of first conductive plates 14 can abut against each other to realize the conductive function, and at this time, the sensitivity of material accumulation detection is increased, thereby adjusting the sensitivity of material accumulation detection. A second conductive plate 15 is fixedly connected to the first conductive plate 14, a third conductive plate 16 is slidably connected to the outer side of the second conductive plate 15, a second detection component 19 is installed between the third conductive plate 16 and the second connecting plate 11, a power supply 6 and an alarm light 7 are installed on the support seat 1, the power supply 6 is connected to the first conductive plate 14 on the second connecting plate 11, the alarm light 7 is connected to the first conductive plate 14 on the first connecting plate 10, a connecting block 20 is installed on the first bracket 2, a rotating plate 21 is rotatably connected to the connecting block 20, the rotating plate 21 and the second rotating roller 4 are fixedly connected, an electric push rod 22 is fixedly provided on the first bracket 2, a connecting plate 23 is fixedly connected to the electric push rod 22, a first motor 25 is fixedly installed on the connecting plate 23, and the output shaft of the first motor 25 is connected to the third detection component 26. When the second motor 28 is not in use, the third detection component 26 can be used to detect the accumulation of materials on the conveyor belt 5 as a whole. When the overall rotational resistance of the conveyor belt 5 is too large, the conveyor belt 5 stops working, so that the device can ensure that the material accumulation on the conveyor belt as a whole is not too much. The second conductive plate 15 can also be used to change the distance between the first conductive plate 14 and the third conductive plate 16, thereby changing the detection range of the accumulation. When the third conductive plate 16 is connected to the second detection component 19, it can not only increase the detection range, but also reduce the detection sensitivity of the device, thereby adapting to targeted detection of materials of different weights.

[0035] Example 2

[0036] like Figure 1-Figure 9As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment also proposes a material accumulation detection device for a belt conveyor.

[0037] In this embodiment, the support seat 1, the first bracket 2 and the second bracket 27 are fixedly connected to form an integral structure. The first bracket 2 and the second bracket 27 are symmetrically distributed on both sides of the conveyor belt 5. There is a gap between the conveyor belt 5 and the first conductive plate 14 to ensure that the conveyor belt 5 will not affect the first conductive plate 14 during normal operation. The first bracket 2 and the second bracket 27 are used to support both sides of the conveyor belt 5.

[0038] In this embodiment, a guide rod 24 is fixedly provided on the first bracket 2. The guide rod 24 runs through the interior of the connecting plate 23. The connecting plate 23 and the guide rod 24 are perpendicular to each other. The guide rod 24 ensures that the lower half of the connecting plate 23 is supported, ensuring that the connecting plate 23 can move smoothly, thereby ensuring the overall stability of the device.

[0039] In this embodiment, the threads on both sides of the screw 12 rotate in opposite directions, and the screw 12 and the support seat 1 are rotatably connected. The first slide 8 and the second slide 9 both form a sliding structure between the screw 12 and the support seat 1. Through the sliding structure on the device, when the screw 12 rotates, the first slide 8 and the second slide 9 can move toward or away from each other, thereby changing the distance between the conductive plates on both sides of the device. When the distance increases, a larger material weight is required to press the two sets of conductive plates down to contact, thereby changing the overall material accumulation detection sensitivity of the device.

[0040] In this embodiment, the first detection component 13 includes an outer sleeve 1301 fixedly connected to the first connecting plate 10 and the second connecting plate 11, a connecting shaft 1303 is rotatably installed in the outer sleeve 1301, a torsion spring 1302 is fixedly connected between the outer sleeve 1301 and the connecting shaft 1303, a third connecting plate 1304 is fixedly connected to the connecting shaft 1303, and the torsion spring 1302 can provide rotation resistance for the connecting shaft 1303, so that when the third connecting plate 1304 on the device is under pressure, the connecting shaft 1303 rotates in the outer sleeve 1301, and automatically resets after being free from pressure.

[0041] In this embodiment, the first conductive plate 14 is provided with a first docking groove 17 for docking with the third connecting plate 1304, the third conductive plate 16 forms a sliding structure with the first conductive plate 14 through the second conductive plate 15, and the third conductive plate 16 is provided with a second docking groove 18 for docking with the second detection component 19. The first conductive plate 14 can slide on the third connecting plate 1304 through the first docking groove 17, and the third conductive plate 16 can slide on the first conductive plate 14 through the second conductive plate 15, thereby changing the material accumulation detection range of the device.

[0042] In this embodiment, the first conductive plate 14, the second conductive plate 15 and the third conductive plate 16 are all bent, and the first conductive plate 14, the second conductive plate 15 and the third conductive plate 16 are evenly spaced on the first connecting plate 10 and the second connecting plate 11. The evenly spaced second conductive plates 15 and the third conductive plates 16 can be detected in different areas, thereby ensuring the overall detection accuracy of the device.

[0043] In this embodiment, the second detection component 19 and the first detection component 13 have the same structure, and the second connecting plate 11 is connected in the same manner as the second detection component 19 and the first detection component 13. When the first detection component 13 and the second detection component 19 are docked, the weight of the material required to press down the first detection component 13 and the second detection component 19 increases, so that the device can not only increase the detection range, but also reduce the detection sensitivity when the material weight is heavier.

[0044] In this embodiment, the third detection component 26 includes a rotating shaft 2601 fixedly connected to the output shaft of the first motor 25, a first connecting rod 2602 is fixedly connected to the rotating shaft 2601, a second connecting rod 2603 is fixedly connected around the first connecting rod 2602, a rotating block 2604 is arranged on the outer side of the second connecting rod 2603, the rotating block 2604 and the rotating plate 21 are rotatably connected, a groove 2605 is provided on the rotating plate 21, a clamping block 2606 is fitted in the groove 2605, a pressing plate 2609 is slidably installed around the rotating block 2604, and a spring 2607 is fixedly connected between the clamping block 2606 and the pressing plate 2609. Figure 4 As shown, the rotating shaft 2601 is used to drive the first connecting rod 2602 to rotate. When the first connecting rod 2602 gradually approaches the rotating block 2604, the second connecting rod 2603 can abut against the pressure plate 2609. The pressure plate 2609 can abut against the spring 2607 to change the compression degree of the spring 2607, thereby changing the degree of tightness between the clamping block 2606 and the inner wall of the groove 2605. At this time, the rotation of the rotating block 2604 can drive the rotating plate 21 to rotate, and when the material transported by the entire device is sufficient to increase the rotation resistance of the rotating plate 21, the rotating block 2604 can slide in the rotating plate 21, so that the device can detect excessive accumulation of materials, and can also detect whether the material weight is too large through the rotation resistance of the roller.

[0045] In this embodiment, a cross groove 2608 is provided on the rotating block 2604 for the first connecting rod 2602 and the second connecting rod 2603 to move. The distance between the second connecting rod 2603 and the first connecting rod 2602 gradually increases from the side close to the cross groove 2608 to the side away from the cross groove 2608. The second connecting rod 2603 can gradually abut against the inner wall of the cross groove 2608 as the first connecting rod 2602 moves, so as to subsequently detect the material accumulation situation through the rotation resistance of the roller.

[0046] Specifically, the present invention is a material accumulation detection device for a belt conveyor. First, Figure 1-Figure 6 As shown, the support seat 1, the first bracket 2 and the second bracket 27 on the device are used to support the device as a whole. When only the deposits on the conveyor belt 5 are detected, the first roller 3 is driven to rotate by the second motor 28, thereby driving the conveyor belt 5 to work. When the device is in use, the first slide plate 8 and the second slide plate 9 on both sides of the device can be moved toward or away from each other by rotating the screw 12, and the spacing between the first connecting plate 10 and the second connecting plate 11 changes, thereby changing the spacing between the two groups of first conductive plates 14 on the left and right sides of the device. When the spacing between the two groups of first conductive plates 14 is close enough, the materials on the conveyor belt 5 only need a small weight to press down the two groups of first conductive plates 14, so that the two groups of first conductive plates 14 of the bending structure abut against each other. After the two groups of first conductive plates 14 abut against each other, as shown in FIG. Figure 7 As shown, the power supply 6 powers on the warning light 7 through two interconnected first conductive plates 14. At this time, the sensitivity of material accumulation detection increases. When the two groups of first conductive plates 14 are far away from each other, the material accumulation on the conveyor belt 5 needs to be sufficient to realize the function of powering on the light. The device can adjust the distance between the first conductive plate 14 and the third conductive plate 16 through the second conductive plate 15, thereby changing the device's detection range of the material weight on the conveyor belt 5. When the first conductive plate 14 is under pressure, the third connecting plate 1304 of the bending structure rotates, the connecting shaft 1303 rotates in the outer bushing 1301, and the torsion spring 1302 allows the connecting shaft 1303 to automatically reset after it is not under pressure.

[0047] like Figure 1-Figure 5 and Figure 7-Figure 9 As shown, the position of the first conductive plate 14 can be changed through the first docking groove 17. When the second docking groove 18 on the third conductive plate 16 docks with the second detection component 19, the detection range of the device can be extended and the detection position of the device as a whole can be changed. At the same time, since the first detection component 13 and the second detection component 19 have the same structure, when the first detection component 13 is indirectly docked with the second detection component 19 through the third conductive plate 16, the weight of the material required to press the first conductive plate 14 can be increased, thereby changing the sensitivity of the device for deposit detection, which is suitable for conveying and detecting materials with heavier weight. Figure 4As shown, the device can extend or shorten the electric push rod 22 so that the connecting plate 23 slides on the guide rod 24, and drives the rotating shaft 2601 and the first connecting rod 2602 to rotate through the first motor 25. When the first connecting rod 2602 gradually approaches the rotating block 2604, the second connecting rod 2603 can abut against the pressure plate 2609, and the pressure plate 2609 can abut against the spring 2607 to change the compression degree of the spring 2607, thereby changing the tightness of the block 2606 and the inner wall of the groove 2605. At this time, the rotation of the rotating block 2604 can drive the rotating plate 21 to rotate, and when the material transported by the entire device is sufficient to increase the rotation resistance of the rotating plate 21, the rotating block 2604 can slide in the rotating plate 21, and the rotating plate 21 and the second rotating roller 4 remain stationary, so that the device can detect local excessive accumulation of materials, and can also detect whether the overall weight of the material is too large through the rotation resistance of the roller.

[0048] The above are only preferred embodiments of the present invention and are 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 protection scope of the present invention.

Claims

1. A material accumulation detection device for a belt conveyor, comprising a support base (1), It is characterized in that The support seat (1) is provided with a first bracket (2) and a second bracket (27), the second bracket (27) is provided with a second motor (28), the output shaft of the second motor (28) is fixedly connected to a first roller (3), the first bracket (2) is rotatably provided with a second roller (4), the first roller (3) and the second roller (4) are provided with a conveyor belt (5), the support seat (1) is slidably provided with a first slide plate (8) and a second slide plate (9), the first slide plate (8) and the second slide plate (9) are threadedly provided with a screw rod (12), the first slide plate (8) is fixedly connected to a first connecting plate (10) above the first slide plate (8), the second slide plate (9) is fixedly connected to a second connecting plate (11) above the second slide plate (9), the first connecting plate (10) and the second connecting plate (11) are both provided with a first detection assembly (13), the first detection assembly (13) is provided with a first conductive plate (14), the first conductive plate (14) is fixedly connected to a second conductive plate (11), 5), a third conductive plate (16) is slidably connected to the outer side of the second conductive plate (15), a second detection component (19) is installed between the third conductive plate (16) and the second connecting plate (11), a power supply (6) and an alarm light (7) are installed on the support seat (1), the power supply (6) is connected to the first conductive plate (14) on the second connecting plate (11), the alarm light (7) is connected to the first conductive plate (14) on the first connecting plate (10), a connecting block (20) is installed on the first bracket (2), a rotating plate (21) is rotatably connected to the connecting block (20), the rotating plate (21) and the second rotating roller (4) are fixedly connected, an electric push rod (22) is fixedly arranged on the first bracket (2), a connecting plate (23) is fixedly connected to the electric push rod (22), a first motor (25) is fixedly installed on the connecting plate (23), and the output shaft of the first motor (25) is connected to the third detection component (26).

2. A material accumulation detection device for a belt conveyor according to claim 1, It is characterized in that The support seat (1), the first bracket (2) and the second bracket (27) are fixedly connected to form an integral structure; the first bracket (2) and the second bracket (27) are symmetrically distributed on both sides of the conveyor belt (5); and there is a gap between the conveyor belt (5) and the first conductive plate (14).

3. The material accumulation detection device for a belt conveyor according to claim 1, It is characterized in that A guide rod (24) is fixedly arranged on the first bracket (2), and the guide rod (24) passes through the interior of the connecting plate (23), and the connecting plate (23) and the guide rod (24) are perpendicular to each other.

4. The material accumulation detection device for a belt conveyor according to claim 1, It is characterized in that The threads on both sides of the screw rod (12) rotate in opposite directions, the screw rod (12) and the support seat (1) are rotationally connected, and the first slide plate (8) and the second slide plate (9) both form a sliding structure between the screw rod (12) and the support seat (1).

5. The material accumulation detection device for a belt conveyor according to claim 1, It is characterized in that The first detection component (13) includes an outer sleeve (1301) fixedly connected to the first connecting plate (10) and the second connecting plate (11), a connecting shaft (1303) is rotatably installed in the outer sleeve (1301), a torsion spring (1302) is fixedly connected between the outer sleeve (1301) and the connecting shaft (1303), and a third connecting plate (1304) is fixedly connected to the connecting shaft (1303).

6. A material accumulation detection device for a belt conveyor according to claim 5, It is characterized in that The first conductive plate (14) is provided with a first docking groove (17) for docking with the third connecting plate (1304); the third conductive plate (16) forms a sliding structure with the first conductive plate (14) through the second conductive plate (15); and the third conductive plate (16) is provided with a second docking groove (18) for docking with the second detection component (19).

7. The material accumulation detection device for a belt conveyor according to claim 1, It is characterized in that The first conductive plate (14), the second conductive plate (15) and the third conductive plate (16) are all bent, and the first conductive plate (14), the second conductive plate (15) and the third conductive plate (16) are evenly spaced on the first connecting plate (10) and the second connecting plate (11).

8. The material accumulation detection device for a belt conveyor according to claim 6, It is characterized in that The second detection component (19) and the first detection component (13) have the same structure, and the second connecting plate (11) and the second detection component (19) and the first detection component (13) are connected in the same manner.

9. The material accumulation detection device for a belt conveyor according to claim 1, It is characterized in that The third detection component (26) includes a rotating shaft (2601) fixedly connected to the output shaft of the first motor (25), a first connecting rod (2602) fixedly connected to the rotating shaft (2601), a second connecting rod (2603) fixedly connected around the first connecting rod (2602), a rotating block (2604) is arranged on the outer side of the second connecting rod (2603), the rotating block (2604) and the rotating plate (21) are rotatably connected, a groove (2605) is provided on the rotating plate (21), a clamping block (2606) is fitted in the groove (2605), pressure plates (2609) are slidably installed around the rotating block (2604), and a spring (2607) is fixedly connected between the clamping block (2606) and the pressure plate (2609).

10. A material accumulation detection device for a belt conveyor according to claim 9, It is characterized in that The rotating block (2604) is provided with a cross groove (2608) for the first connecting rod (2602) and the second connecting rod (2603) to move, and the distance between the second connecting rod (2603) and the first connecting rod (2602) gradually increases from a side close to the cross groove (2608) to a side away from the cross groove (2608).

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