A belt coal flow monitoring device

Abstract

The utility model relates to a kind of belt coal flow monitoring devices, belong to belt coal flow monitoring technical field.It includes the door type frame and baffle installed above belt, the horizontal beam surface of door type frame is vertically penetrated and opened with through slot in left and right sides, the inside of two groups of through slots is slid and equipped with longitudinal support rod, two groups of longitudinal support rod are symmetrically arranged.The utility model is through the cooperation of longitudinal support rod and limiting component, staff can flexibly adjust the height of shaft according to actual application situation.Through reducing the position of shaft, the rotation point of baffle is reduced, to realize more accurate coal flow monitoring.When the coal flow on belt is small, due to the rotation point of baffle is reduced, the action of coal flow can still drive baffle to rotate, to accurately indicate the coal flow condition on belt.Secondly, staff can also flexibly adjust the lateral support length of lateral telescopic frame according to the actual width of baffle, greatly enhance applicability.

Description

Technical Field

[0001] This utility model relates to the field of belt coal flow monitoring technology, and in particular to a belt coal flow monitoring device. Background Technology

[0002] In industrial production, the SCP (Switchboard Conveyor Flow Signal) is mainly used to monitor whether there is coal flow on the conveyor belt, providing a basis for system control.

[0003] Currently, existing coal flow signal monitoring devices typically have a set of rotatable baffles installed above the conveyor belt. When there is coal flow on the belt, it pushes the baffles to rotate. At this time, a rotary proximity switch at the point of rotation of the baffles receives the rotation signal, thereby determining that there is coal flow on the belt.

[0004] However, in practical applications, rotary proximity switches are typically installed about 600 cm above the conveyor belt. When the coal flow on the belt is large, the monitoring device can still indicate the coal flow status normally. But when the coal flow is small, because the rotation point is far from the belt, the baffle's operating angle becomes smaller. At this time, the rotary proximity switch may not be able to receive the rotation signal, making it impossible to monitor the coal flow status on the belt in real time, thus affecting the entire monitoring system. Summary of the Invention

[0005] To solve the above-mentioned technical problems, this utility model provides a conveyor belt coal flow monitoring device. The technical solution of this utility model is as follows:

[0006] A conveyor belt coal flow monitoring device includes a gantry frame and a baffle plate installed above the conveyor belt. The gantry frame has vertically penetrating slots on both sides of its crossbeam. Two sets of longitudinal support rods slide inside each slot, arranged symmetrically. Limiting components for restricting the position of the corresponding longitudinal support rods are connected to the upper end of the gantry frame's crossbeam on one side of each slot. Fixed seats are fixedly connected to the lower ends of both sets of longitudinal support rods. Rotating seats are rotatably connected to the lower ends of both sets of fixed seats via shafts. Lateral telescopic frames are detachably connected to the adjacent sides of both sets of rotating seats. A baffle plate is detachably connected between the two sets of lateral telescopic frames. A sensing plate is detachably connected to the end of one set of shafts away from the baffle plate, causing the shaft to rotate synchronously. A mounting frame is fixedly connected to the fixed seat connected to one set of shafts on the side away from the baffle plate. A sensor that cooperates with the sensing plate is installed inside the mounting frame.

[0007] Optionally, multiple sets of limiting grooves are vertically and equidistantly provided on one side of the longitudinal support rod. The limiting assembly includes a back plate, an ear plate, and a limiting seat. The back plate is fixedly connected to the upper end of the portal frame crossbeam and located behind the through groove. The ear plate is fixedly connected to one side of the transverse length of the back plate and the two are perpendicular to each other. The limiting seat is slidably mounted on the front side of the back plate. An adjusting threaded rod is threadedly connected to the center of the ear plate. One end of the adjusting threaded rod is rotatably connected to the limiting seat. The adjusting threaded rod is used to push the limiting seat to move laterally to engage or disengage from the limiting groove.

[0008] Optionally, a guide groove is provided on the front side of the back plate, and a pulley is rotatably connected to the rear side of the limiting seat, with the pulley sliding inside the guide groove.

[0009] Optionally, the transverse telescopic frame includes a main board and a C-shaped extension plate. The main board is fixedly connected to the side of the rotating seat near the baffle. The C-shaped extension plate is laterally slidably disposed at the end of the main board away from the rotating seat. A short stud is fixedly connected to the rear side of the main board and the end near the C-shaped extension plate. A movable groove is provided through the rear side of the C-shaped extension plate to provide a sliding position for the short stud. A limiting nut for fixing the position of the short stud is threaded on the outer side of the short stud. A fixing plate is fixedly connected to the front side of the end of the C-shaped extension plate away from the main board. Bolts for fixing the baffle are connected to the fixing plate.

[0010] Optionally, the baffle has elongated slots on both the left and right sides to provide sliding adjustment positions for the bolts. The transverse telescopic frame also includes a limiting plate. The baffle is sandwiched between the fixed plate and the limiting plate. The bolt passes through the fixed plate, the elongated slots and the limiting plate in sequence. The front end of the bolt is threaded with a locking nut.

[0011] Optionally, the sensing plate includes a central seat, which is fixedly connected to a shaft at a corresponding position by screws, and an arc-shaped metal sensing plate is fixedly connected to the lower end of the central seat by a connecting strip.

[0012] Optionally, the mounting bracket includes a side disc and a mounting disc. The side disc is fixedly connected to a corresponding fixed base. A fixing ring is fixedly connected to the edge of the side disc away from the fixed base. The mounting disc is located on the side of the side disc away from the fixed base, and the mounting disc is fixed to the side disc by a connecting plate. The surface of the mounting disc is provided with an arc-shaped groove for mounting a sensor. A protective cover is detachably fitted on the outside of the fixing ring.

[0013] All of the above-mentioned optional technical solutions can be combined arbitrarily, and this utility model does not provide a detailed description of the structure after each combination.

[0014] The beneficial effects of this utility model through the above solution are as follows:

[0015] This invention, through the cooperation of the longitudinal support rod and the limiting component, allows operators to flexibly adjust the height of the shaft according to actual application conditions. By lowering the position of the shaft, the rotation point of the baffle is lowered, thereby achieving more accurate coal flow monitoring. When the coal flow on the conveyor belt is small, the lowered rotation point of the baffle allows the coal flow to still drive the baffle to rotate, thus accurately indicating the coal flow status on the conveyor belt. Furthermore, operators can also flexibly adjust the lateral support length of the transverse telescopic frame according to the actual width of the baffle, greatly enhancing its applicability.

[0016] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0017] Figure 1 A schematic diagram of the overall appearance structure of the conveyor coal flow monitoring device provided by this utility model on the conveyor belt;

[0018] Figure 2 A schematic diagram of the overall structure of the conveyor coal flow monitoring device provided by this utility model;

[0019] Figure 3 An exploded view of the conveyor coal flow monitoring device provided by this utility model;

[0020] Figure 4 This is an exploded structural diagram of the longitudinal support rod, shaft, rotating seat, transverse telescopic frame, baffle, sensing plate, mounting frame and sensor in this utility model.

[0021] Figure 5 This is a schematic diagram of the structure of the longitudinal support rod, shaft, rotating seat, transverse telescopic frame and baffle in this utility model;

[0022] Figure 6 This is a front sectional view of the longitudinal support rod, shaft, rotating seat, transverse telescopic frame, induction plate and mounting frame of this utility model.

[0023] Figure 7 This is an exploded structural diagram of the longitudinal support rod, shaft, rotating seat, sensing plate, mounting bracket, and sensor in this utility model.

[0024] The following are the labeling elements in the diagram: 1. Belt; 2. Portal frame; 21. Through groove; 22. Slide groove; 3. Longitudinal support rod; 31. Limiting groove; 32. Slide bar; 33. Fixed seat; 4. Limiting assembly; 41. Back plate; 411. Guide groove; 42. Ear plate; 43. Limiting seat; 431. Pulley; 44. Adjusting threaded rod; 5. Shaft; 51. Polygonal groove; 6. Rotary seat; 7. Lateral telescopic frame; 71. Main board; 711. Short stud; 712. Limiting nut; 72. C-shaped extension plate; 721. Movable groove; 73. Fixing plate; 74. Bolt; 75. Locking nut; 76. Limiting plate; 8. Baffle; 81. Long groove; 9. Sensing plate; 91. Center seat; 92. Arc-shaped metal sensing plate; 93. Polygonal seat; 10. Mounting bracket; 101. Side disc; 102. Fixing ring; 103. Mounting disc; 1031. Arc-shaped groove; 104. Connecting plate; 105. Protective cover; 11. Sensor. Detailed Implementation

[0025] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0026] Please see Figure 1-7 This utility model provides a coal flow monitoring device for a conveyor belt 1, including a portal frame 2 and a baffle 8 installed above the conveyor belt 1. Vertical through slots 21 are vertically opened on both sides of the crossbeam surface of the portal frame 2. Longitudinal support rods 3 are slidably installed inside both sets of through slots 21. The two sets of longitudinal support rods 3 are symmetrically arranged. Limiting components 4 for restricting the position of the corresponding longitudinal support rod 3 are connected to the upper end of the crossbeam of the portal frame 2 on one side of each of the two sets of through slots 21. Fixing seats 33 are fixedly connected to the lower ends of both sets of longitudinal support rods 3. A rotating seat 6 is rotatably connected to the shaft 5, and the shaft 5 is fixedly connected to the rotating seat 6. A transverse telescopic frame 7 is detachably connected to the side of the two sets of rotating seats 6 that are close to each other. A baffle 8 is detachably connected between the two sets of transverse telescopic frames 7. A sensing plate 9 is detachably connected to the end of one set of shaft 5 that is away from the baffle 8. The shaft 5 drives the sensing plate 9 to rotate synchronously. A mounting bracket 10 is fixedly connected to the fixed seat 33 connected to one set of shaft 5 on the side away from the baffle 8. A sensor 11 that cooperates with the sensing plate 9 is installed inside the mounting bracket 10.

[0027] In this invention, when there is coal flow on belt 1, the force of the coal flow will lift the baffle 8. During this process, the baffle 8, through the transverse telescopic frame 7 and the rotating seat 6, drives the shaft 5 and the sensing plate 9 to rotate around the center of the shaft 5. The sensor 11 is located near the rotation path of the sensing plate 9. When the sensing plate 9 starts to rotate or rotates to a certain position, it will trigger the sensor 11 at the corresponding position, causing it to output a signal, indicating that there is coal flow on belt 1. When there is no coal flow on belt 1, the baffle 8 is in a vertical state, and the sensing plate 9 is in a stationary state and cannot rotate. At this time, the sensor 11 does not receive any signal output, indicating that there is no coal flow on belt 1. The entire monitoring device can promptly determine whether there is coal flow on belt 1 and provide reliable signal feedback.

[0028] This invention, through the cooperation of the longitudinal support rod 3 and the limiting component 4, allows operators to flexibly adjust the height of the shaft 5 according to actual application conditions. By lowering the position of the shaft 5, the rotation point of the baffle 8 is lowered, thereby achieving more accurate coal flow monitoring. When the coal flow on the conveyor belt 1 is small, the lowered rotation point of the baffle 8 still allows the coal flow to drive the baffle 8 to rotate, thus accurately indicating the coal flow status on the conveyor belt 1. Furthermore, operators can also flexibly adjust the lateral support length of the transverse telescopic frame 7 according to the actual width of the baffle 8, greatly enhancing its applicability.

[0029] Specifically, sensor 11 can be a Hall sensor and is installed at the starting position of the rotation of sensing plate 9. It can detect the position change of sensing plate 9 in real time as it rotates and provide feedback on coal flow status to the control terminal by outputting an electrical signal. The circuit structure and principle involved here are existing technologies in this field and will not be described in detail here.

[0030] Furthermore, multiple sets of limiting grooves 31 are vertically and equidistantly opened on one side of the longitudinal support rod 3. The limiting component 4 includes a back plate 41, an ear plate 42, and a limiting seat 43. The back plate 41 is fixedly connected to the upper end of the crossbeam of the portal frame 2 and is located on the rear side of the through groove 21. The ear plate 42 is fixedly connected to one side of the transverse length of the back plate 41 and the two are perpendicular to each other. The limiting seat 43 is slidably mounted on the front side of the back plate 41. An adjusting threaded rod 44 is threadedly connected to the center of the ear plate 42. One end of the adjusting threaded rod 44 is rotatably connected to the limiting seat 43. The adjusting threaded rod 44 is used to push the limiting seat 43 to move laterally to engage or disengage from the limiting groove 31.

[0031] Specifically, when adjusting the actual height of the shaft 5, first rotate the adjusting threaded rod 44 to move the limiting seat 43 towards the ear plate 42, thus disengaging it from the limiting groove 31. Next, move the relative position of the longitudinal support rod 3 within the through groove 21 to change the height of the shaft 5. After the height adjustment is complete, rotate the adjusting threaded rod 44 in the opposite direction to move the limiting seat 43 towards the longitudinal support rod 3, thus engaging it within the limiting groove 31. At this point, the relative position of the longitudinal support rod 3 and the through groove 21 is firmly locked. Furthermore, a sliding groove 22 is provided on one side of the through groove 21, and a sliding strip 32 that slides in conjunction with the sliding groove 22 is fixed on one side of the longitudinal support rod 3.

[0032] Furthermore, a guide groove 411 is provided on the front side of the back plate 41, and a pulley 431 is rotatably connected to the rear side of the limiting seat 43, with the pulley 431 sliding inside the guide groove 411.

[0033] Specifically, when the adjusting threaded rod 44 drives the limiting seat 43 to move laterally, it will cause the pulley 431 to slide in the guide groove 411, making the movement of the limiting seat 43 smoother. The guide groove 411 plays a role in limiting and guiding the pulley 431, so that the limiting seat 43 can only slide along the predetermined path.

[0034] Furthermore, the transverse telescopic frame 7 includes a main board 71 and a C-shaped extension plate 72. The main board 71 is fixedly connected to the side of the rotating seat 6 near the baffle 8. The C-shaped extension plate 72 is slidably mounted on the end of the main board 71 away from the rotating seat 6. A short stud 711 is fixedly connected to the rear side of the main board 71 and the end near the C-shaped extension plate 72. A movable groove 721 is provided through the rear side of the C-shaped extension plate 72 to provide a sliding position for the short stud 711. A limiting nut 712 for fixing the position of the short stud 711 is threaded on the outer side of the short stud 711. A fixing plate 73 is fixedly connected to the front side of the end of the C-shaped extension plate 72 away from the main board 71. A bolt 74 for fixing the baffle 8 is connected to the fixing plate 73.

[0035] Specifically, the overall length of the transverse telescopic frame 7 can be adjusted according to the actual width of the baffle 8. The specific operation is as follows: loosen the limit nut 712, at which point the C-shaped extension plate 72 can slide laterally on the outside of the main plate 71, then fix the fixing plate 73 at one end of the C-shaped extension plate 72 to the baffle 8 with bolts 74, and then tighten the limit nut 712.

[0036] Furthermore, both sides of the baffle 8 are provided with elongated grooves 81 for the bolt 74 to slide and adjust. The transverse telescopic frame 7 also includes a limiting plate 76. The baffle 8 is sandwiched between the fixed plate 73 and the limiting plate 76. The bolt 74 passes through the fixed plate 73, the elongated grooves 81 and the limiting plate 76 in sequence. The front end of the bolt 74 is threaded with a locking nut 75.

[0037] Specifically, elongated grooves 81 are provided on both the left and right sides of the baffle 8, which allows the relative fixed position of the baffle 8 and the fixing plate 73 to be adjustable. When the lower edge of the baffle 8 wears down, the operator can easily adjust the position of the baffle 8 by lowering it, thus extending its service life. Secondly, when fixing the baffle 8 and the fixing plate 73, bolts 74 are passed through the fixing plate 73, the elongated grooves 81, and the limiting plate 76 in sequence, and then locked with lock nuts 75.

[0038] Furthermore, the sensing plate 9 includes a center seat 91, which is fixedly connected to the shaft 5 at the corresponding position by screws, and an arc-shaped metal sensing plate 92 is fixedly connected to the lower end of the center seat 91 by a connecting strip.

[0039] Specifically, a polygonal seat 93 is fixedly connected to the side of the center seat 91 near the shaft 5, and a polygonal groove 51 is formed on the side of one set of shafts 5 near the center seat 91. To fix the center seat 91 and the shaft 5, simply insert the polygonal seat 93 into the polygonal groove 51 and then secure it with screws. The polygonal seat 93 and the polygonal groove 51 serve as limiters, ensuring that the center seat 91 and the shaft 5 rotate synchronously. When the baffle 8 drives the shaft 5 to rotate, the shaft 5 drives the arc-shaped metal induction plate 92 to rotate via the center seat 91 and the connecting strip.

[0040] Preferably, the arc-shaped metal sensing plate 92 is semi-circular. When the baffle 8 indirectly drives the arc-shaped metal sensing plate 92 to rotate around the center of the shaft 5, the arc-shaped metal sensing plate 92 will always be within the sensing range of the sensor 11.

[0041] Furthermore, the mounting bracket 10 includes a side disc 101 and a mounting disc 103. The side disc 101 is fixedly connected to the corresponding fixing seat 33. A fixing ring 102 is fixedly connected to the side edge of the side disc 101 away from the fixing seat 33. The mounting disc 103 is located on the side of the side disc 101 away from the fixing seat 33, and the mounting disc 103 is fixed to the side disc 101 by a connecting plate 104. An arc-shaped groove 1031 for mounting the sensor 11 is opened on the surface of the mounting disc 103. A protective cover 105 is detachably fitted on the outside of the fixing ring 102.

[0042] Specifically, the sensor 11 is mounted on the mounting disc 103 via an arc-shaped groove 1031, and a protective cover 105 is fitted around the outside of the mounting disc 103. The protective cover 105 is threadedly connected to the fixing ring 102, and the cable of the sensor 11 can pass through the wire hole on the side cover of the protective cover 105. The protective cover 105 can protect and shield the arc-shaped metal sensing plate 92 and the sensor 11, preventing the coal dust on the conveyor belt 1 from directly contacting the arc-shaped metal sensing plate 92 and the sensor 11, thereby maintaining a relatively clean monitoring space and reducing the impact of external pollution on the monitoring system.

[0043] In practical applications, multiple sets of sensors 11 can be installed inside the arc-shaped trough 1031. This allows for real-time monitoring of the arc-shaped metal sensor plate 92 at different rotation angles, accurately capturing changes in coal flow. For example, a set of sensors 11 can be installed at the initial rotation position of the arc-shaped metal sensor plate 92 and at a 30-degree rotation position, enabling monitoring of coal flow changes at two key points. When coal flow appears on the conveyor belt 1, the baffle 8 indirectly drives the arc-shaped metal sensor plate 92 to rotate. At this point, the arc-shaped metal sensor plate 92 will first trigger the sensor 11 at the initial position, providing preliminary information about the coal flow to the system, indicating that coal flow has appeared on the conveyor belt 1. As the coal flow gradually increases, the baffle 8 continues to indirectly drive the arc-shaped metal sensor plate 92 to rotate until it triggers the second set of sensors 11 at the 30-degree position. At this point, both sensors 11 are triggered, allowing the system to determine that the coal flow on the conveyor belt 1 is relatively large.

[0044] The above are merely preferred embodiments of this utility model and are not intended to limit this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A belt conveyor coal flow monitoring device, characterized in that: The system includes a gantry frame (2) and a baffle (8) installed above the belt (1). The gantry frame (2) has vertically penetrating slots (21) on both sides of its crossbeam surface. Two sets of slots (21) each have a sliding longitudinal support rod (3). The two sets of longitudinal support rods (3) are symmetrically arranged. The upper end of the gantry frame (2) and one side of each slot (21) is connected to a limiting component (4) to restrict the position of the corresponding longitudinal support rod (3). The lower ends of both sets of longitudinal support rods (3) are fixedly connected to a fixing seat (33). The lower ends of both sets of fixing seats (33) are rotatably connected to a rotating seat via a shaft (5). 6) The shaft (5) is fixedly connected to the rotating seat (6). The two sets of rotating seats (6) are detachably connected to a transverse telescopic frame (7) on the side close to each other. The baffle (8) is detachably connected between the two sets of transverse telescopic frames (7). The end of one set of shafts (5) away from the baffle (8) is detachably connected to a sensing plate (9). The shaft (5) drives the sensing plate (9) to rotate synchronously. The fixed seat (33) connected to one set of shafts (5) is fixedly connected to a mounting frame (10) on the side away from the baffle (8). The sensor (11) that cooperates with the sensing plate (9) is installed on the inner side of the mounting frame (10).

2. The conveyor belt coal flow monitoring device according to claim 1, characterized in that, The longitudinal support rod (3) has multiple sets of limiting grooves (31) vertically and equidistantly opened on one side. The limiting component (4) includes a back plate (41), an ear plate (42) and a limiting seat (43). The back plate (41) is fixedly connected to the upper end of the crossbeam of the portal frame (2) and located on the rear side of the through groove (21). The ear plate (42) is fixedly connected to one side of the transverse length of the back plate (41) and the two are perpendicular to each other. The limiting seat (43) is slidably mounted on the front side of the back plate (41). The center of the ear plate (42) is threaded with an adjusting thread rod (44). One end of the adjusting thread rod (44) is rotatably connected to the limiting seat (43). The adjusting thread rod (44) is used to push the limiting seat (43) to move laterally to engage or disengage from the limiting groove (31).

3. The conveyor belt coal flow monitoring device according to claim 2, characterized in that, The back plate (41) has a guide groove (411) on its front side, and the limit seat (43) is rotatably connected to a pulley (431) on its rear side. The pulley (431) slides inside the guide groove (411).

4. The conveyor belt coal flow monitoring device according to claim 1, characterized in that, The transverse telescopic frame (7) includes a main board (71) and a C-shaped extension plate (72). The main board (71) is fixedly connected to the side of the rotating seat (6) near the baffle (8). The C-shaped extension plate (72) is slidably disposed on the end of the main board (71) away from the rotating seat (6). A short stud (711) is fixedly connected to the rear side of the main board (71) and the end near the C-shaped extension plate (72). A movable groove (721) for providing a sliding position for the short stud (711) is provided through the rear side of the C-shaped extension plate (72). A limiting nut (712) for fixing the position of the short stud (711) is threaded on the outer side of the short stud (711). A fixing plate (73) is fixedly connected to the front side of the end of the C-shaped extension plate (72) away from the main board (71). A bolt (74) for fixing the baffle (8) is connected to the fixing plate (73).

5. A belt conveyor coal flow monitoring device according to claim 4, characterized in that, The baffle (8) has a long slot (81) through which the bolt (74) is provided for sliding adjustment on both the left and right sides. The transverse telescopic frame (7) also includes a limiting plate (76). The baffle (8) is sandwiched between the fixed plate (73) and the limiting plate (76). The bolt (74) passes through the fixed plate (73), the long slot (81) and the limiting plate (76) in sequence. The front end of the bolt (74) is threaded with a locking nut (75).

6. The conveyor belt coal flow monitoring device according to claim 1, characterized in that, The sensing plate (9) includes a center seat (91), which is fixedly connected to the shaft (5) at the corresponding position by screws. The lower end of the center seat (91) is fixedly connected to an arc-shaped metal sensing plate (92) by a connecting strip.

7. A belt conveyor coal flow monitoring device according to claim 6, characterized in that, The mounting bracket (10) includes a side disc (101) and a mounting disc (103). The side disc (101) is fixedly connected to a corresponding fixed seat (33). A fixing ring (102) is fixedly connected to the side edge of the side disc (101) away from the fixed seat (33). The mounting disc (103) is located on the side of the side disc (101) away from the fixed seat (33), and the mounting disc (103) is fixed to the side disc (101) by a connecting plate (104). An arc-shaped groove (1031) for mounting a sensor (11) is opened on the surface of the mounting disc (103). A protective cover (105) is detachably fitted on the outside of the fixing ring (102).

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