Belt conveyor tail

Abstract

This application provides a tail section of a belt conveyor, including a baffle, a support mechanism, and a vibration mechanism. The baffle includes a side baffle and an extension plate, the extension plate being disposed on the side baffle and sliding relative to the side baffle to adjust the flow guiding volume of the baffle. The support mechanism is disposed on the tail section frame, and the material discharge end of the baffle is connected to the support mechanism. The support mechanism includes a bushing, and the vibration mechanism is disposed within the bushing, the vibration mechanism being used to apply high-frequency vibration to the material discharge end of the baffle. Through the synergistic effect of flow guiding volume adjustment and vibration unblocking, the adjustable flow guiding volume achieves precise coal flow centering, while high-frequency vibration ensures that the material discharge end does not stick or clog, improving the equipment's adaptability and operational reliability from both the perspectives of flow control and smooth discharge.

Description

Technical Field

[0001] This application belongs to the technical field of coal conveying equipment, specifically relating to the tail section of a belt conveyor. Background Technology

[0002] In existing technologies, coal transportation is a crucial link in the coal mining process. As the primary means of coal transportation, belt conveyors face a common problem in practical applications: coal spillage at the tail end of the conveyor due to impact or accumulation. This not only wastes coal resources and increases production costs but also pollutes the working environment and may pose safety hazards. This spillage is particularly severe when the belt conveyor operates at high speeds, carries large quantities of coal, or has a significant drop.

[0003] Specifically, traditional belt conveyors lack effective protective measures at the tail end to prevent coal from scattering and piling up due to high-speed falling. To address these issues, it is essential to design a tail section for a coal mine belt conveyor designed to prevent coal spillage. Summary of the Invention

[0004] Therefore, the purpose of this application is to provide a belt conveyor tail section that at least solves one of the technical problems mentioned in the background art.

[0005] To address the aforementioned problems, this application provides a belt conveyor tail section, comprising a baffle, a support mechanism, and a vibration mechanism. The baffle includes a side baffle and an extension plate, the extension plate being disposed on the side baffle and sliding relative to the side baffle to adjust the flow guiding volume of the baffle. The support mechanism is disposed on the tail frame, and the material discharge end of the baffle is connected to the support mechanism. The support mechanism includes a bushing, and the vibration mechanism is disposed within the bushing, the vibration mechanism being used to apply high-frequency vibration to the material discharge end of the baffle.

[0006] Optionally, the baffle further includes a guide assembly, which includes a first guide portion and a second guide portion. The first guide portion is disposed on the outer side of the side baffle, and the second guide portion is disposed on the surface of the extension plate facing the side baffle. The first guide portion and the second guide portion cooperate to allow the extension plate to slide relative to the side baffle.

[0007] Optionally, the baffle further includes a driving assembly, which includes a base plate and an extension plate driving part. The actuating end of the extension plate driving part is connected to the side surface of the extension plate away from the side baffle. The driving end of the extension plate driving part is disposed on the base plate, and the base plate is disposed on the surface of the side baffle facing the extension plate.

[0008] Optionally, the extension plate drive unit includes a threaded sleeve, a screw, and a drive shaft. The drive shaft is rotatably mounted on the base plate, the screw is connected to the drive shaft, the threaded sleeve is threaded onto the screw, and the threaded sleeve is fixed to the surface of the extension plate opposite to the side baffle.

[0009] Optionally, the vibration mechanism includes a bushing, an inner tube, and a support rod; the bushing is coaxially disposed within the bushing, a first magnet is circumferentially disposed on the outer circumferential surface of the inner tube, the first magnet at least partially extending into the interior of the inner tube, the inner tube is coaxially disposed within the bushing so that the bushing encloses the first magnet, a second magnet is circumferentially disposed on the outer circumferential surface of the support rod, the support rod is coaxially disposed within the inner tube so that the inner tube encloses the second magnet.

[0010] Optionally, elastic sheets are provided on both sides of the first magnet, and the elastic sheets are used to provide radial elastic restoring force for the first magnet.

[0011] Optionally, the first magnet is arranged at equal intervals along the circumference on the outer circumferential surface of the inner tube, and the second magnet is arranged at equal intervals along the circumferential surface on the outer circumferential surface of the support rod, with the second magnet and the first magnet arranged in a one-to-one correspondence.

[0012] Optionally, the support mechanism further includes a connecting component, which includes a connecting seat and a connecting plate. The connecting seat is disposed on the outer circumferential surface of the bushing, facing the side of the baffle. The connecting plate is sleeved on the connecting seat. The material discharge end of the baffle is provided with an installation port. The connecting seat is inserted into the installation port so that the baffle is fixed on the connecting plate.

[0013] Optionally, the tail of the belt conveyor also includes an adjustment mechanism, which is mounted on the tail frame to support the baffle and is located at the discharge end of the baffle.

[0014] Optionally, the adjustment mechanism includes an adjustment drive unit and a crossbar. Adjustment drive units are respectively provided on both sides of the tail frame, and the two ends of the crossbar are respectively connected to the execution ends of the corresponding adjustment drive units.

[0015] By employing the above technical solution, the present invention has at least the following beneficial effects: This application provides a belt conveyor tail section with an extension plate that can slide along a side baffle, changing the lateral width and capacity of the internal guide channel in real time. When the coal volume is small, the guide volume is reduced to concentrate the coal flow towards the center of the conveyor belt, preventing dispersion and deviation. When the coal volume is large, the guide volume is expanded to prevent lateral overflow and coal spillage, adapting to different coal flow sizes under different operating conditions and improving material drop stability and spillage prevention. A vibration mechanism is built into the bushing of the support mechanism, applying high-frequency vibration to the baffle's material drop end. The vibration is directly transmitted to the baffle's material drop end, breaking the adhesion between the coal and the plate wall through high-frequency vibration, effectively preventing wet coal and pulverized coal from accumulating on the wall, avoiding coal arch blockage at the drop outlet, ensuring continuous and smooth coal flow, and reducing the risk of coal spillage and blockage. Through the synergistic effect of guide volume adjustment and vibration unblocking, the adjustable guide volume achieves precise coal flow centering, while high-frequency vibration ensures the material drop end is non-sticky and non-blocking, improving equipment adaptability and operational reliability from both the perspectives of guide volume control and smooth discharge. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the tail section of a belt conveyor according to an embodiment of this application; Figure 2 This is a partial exploded view of the tail section of the belt conveyor according to an embodiment of this application; Figure 3 Examples of embodiments of this application Figure 2 Enlarged view of point A; Figure 4 This is a schematic diagram of the baffle portion in an embodiment of this application; Figure 5 This is a schematic diagram of the support structure in an embodiment of this application; Figure 6 This is a schematic diagram of the vibration mechanism installed inside the bushing according to an embodiment of this application; Figure 7 This is a schematic diagram of the vibration mechanism according to an embodiment of this application; Figure 8 This is a schematic diagram of a vibration mechanism for removing the bushing according to an embodiment of this application.

[0017] The reference numerals in the attached figures are as follows: 1. Tail frame; 2. Baffle; 201. Side baffle; 202. Extension plate; 203. First guide section; 204. Second guide section; 205. Base plate; 206. Threaded sleeve; 207. Screw; 208. Drive shaft; 209. Mounting port; 210. Discharge port; 211. Fastener; 212. Handle; 3. Support mechanism; 301. Bushing; 302. Sealing cover; 303. Connecting seat; 304. Connecting plate; 401. Bushing; 402. Inner tube; 403. Support rod; 404. First magnet; 405. Second magnet; 406. Elastic sheet; 5. Adjustment mechanism; 501. Adjustment drive unit; 502. Crossbar; 503. Limit baffle; 6. Belt rollers. Detailed Implementation

[0018] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0020] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0021] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0022] See also Figures 1 to 8As shown, according to an embodiment of this application, a belt conveyor tail section is provided, including a baffle 2, a support mechanism 3, and a vibration mechanism; the baffle 2 includes a side baffle 201 and an extension plate 202, the extension plate 202 is disposed on the side baffle 201, and the extension plate 202 slides relative to the side baffle 201 to adjust the flow guiding volume of the baffle 2; the support mechanism 3 is disposed on the tail frame 1, and the material dropping end of the baffle 2 is connected to the support mechanism 3; the support mechanism 3 includes a bushing 301, and the vibration mechanism is disposed inside the bushing 301, the vibration mechanism being used to apply high-frequency vibration to the material dropping end of the baffle 2.

[0023] The extension plate 202 can slide along the side baffle 201, changing the lateral width and capacity of the internal guide channel of the baffle 2 in real time. When the coal volume is small, the guide volume is reduced to concentrate the coal flow towards the center of the conveyor belt and prevent it from spreading and deviating; when the coal volume is large, the guide volume is expanded to prevent the coal flow from overflowing laterally and causing coal spillage. It adapts to the coal flow size under different working conditions, improving the stability of material falling and the anti-spillage effect. The vibration mechanism is built into the bushing 301 of the support mechanism 3 to apply high-frequency vibration to the material falling end of the baffle 2. The vibration is directly transmitted to the material falling end of the baffle 2, and the adhesion between the coal and the plate wall is broken by high-frequency vibration, which effectively prevents wet coal and pulverized coal from sticking to the wall and avoids the formation of coal arches to block the material falling port, ensuring that the coal flow falls continuously and smoothly and reducing the risk of coal spillage and blockage. By adjusting the flow volume and using vibration to clear blockages, the adjustable flow volume enables precise centering of the coal flow. High-frequency vibration ensures that the material does not stick or block at the discharge end, thus improving the equipment's adaptability and operational reliability from the dual dimensions of flow control and smooth discharge.

[0024] The baffle 2 includes a side baffle 201 and an extension plate 202. The baffle 2 also includes a material receiving base plate, which extends along the material conveying direction. Side baffles 201 are integrally formed on both sides of the material receiving base plate along the conveying direction. The side baffles 201 are arranged at an obtuse angle with the material receiving base plate so that the material splashed and scattered on the side baffles 201 during the material dropping process can slide down the inclined surface of the side baffles 201 onto the material receiving base plate under the action of gravity, thereby realizing the directional collection of the material.

[0025] In order to make the flow-guiding volume of the baffle 2 adjustable, an extension plate 202 is provided on the outside of the side baffle 201. The extension plate 202 slides relative to the side baffle 201. That is, by adjusting the sliding extension length of the extension plate 202, the effective blocking width of the baffle 2 along the vertical conveying direction can be changed. Thus, the flow-guiding volume of the baffle 2 can be flexibly adjusted according to different material dropping conditions (such as the amount of material dropping and the range of material splashing), thereby improving the versatility and adaptability of the structure.

[0026] The support mechanism 3 is set on the tail frame 1. The material dropping end of the baffle 2 is connected to the support mechanism 3. Along the material conveying direction, the material dropping end of the baffle 2 is arranged in an inclined state that is higher than the discharge end, so that the baffle 2 as a whole is a guide slope that is inclined downward from the material dropping end to the discharge end, which makes it easier for the material to be discharged in a directional manner along the baffle 2 under the action of gravity.

[0027] The support mechanism 3 includes a bushing 301, which is mounted on the roller bracket of the tail frame 1 and located directly above the belt roller 6. A hollow mounting cavity is formed inside the bushing 301, and the vibration mechanism is installed inside the hollow mounting cavity. The vibration mechanism can apply high-frequency, low-amplitude vibration excitation to the material drop end of the baffle 2, so that the material on the baffle 2 remains loose under the vibration and avoids sticking and clogging. At the same time, it assists the gravity guiding effect of the guide slope, improves the smoothness of material sliding, and reduces residual material accumulation.

[0028] Specifically, the material receiving base plate is provided with a discharge port 210 at the discharge end. The position of the discharge port 210 corresponds to the receiving area of ​​the conveyor belt below, and its opening size matches the effective receiving width of the conveyor belt. The material that slides down the guide plate surface of the baffle 2 to the discharge end can be discharged smoothly and directionally to the middle of the conveyor belt below through the discharge port 210, reducing the problems of material spillage and belt deviation caused by uneven loading of coal or impact on the edge of the belt.

[0029] In another embodiment, the baffle 2 further includes a guide assembly, which includes a first guide portion 203 and a second guide portion 204. The first guide portion 203 is disposed on the outer side of the side baffle 201, and the second guide portion 204 is disposed on the surface of the extension plate 202 facing the side baffle 201. The first guide portion 203 and the second guide portion 204 cooperate to allow the extension plate 202 to slide relative to the side baffle 201.

[0030] A guide assembly is provided between the side baffle 201 and the extension plate 202. This guide assembly includes a first guide portion 203 and a second guide portion 204. The first guide portion 203 is a guide groove formed on the side baffle 201, extending along the adjustment direction of the extension plate 202 (i.e., the extension direction of the side baffle 201). The second guide portion 204 is a guide slider provided on the extension plate 202, forming a sliding pair with the guide groove. The guide slider can be embedded in the guide groove and slide along its extension direction. Through the cooperation of the guide slider and the guide groove, the sliding trajectory of the extension plate 202 relative to the side baffle 201 is constrained, ensuring that the extension plate 202 can only move linearly along a preset adjustment direction, achieving stable guiding adjustment of the extension plate 202 relative to the side baffle 201. Simultaneously, this guiding structure restricts the lateral offset and tilt of the extension plate 202, reduces frictional resistance during sliding, and ensures smoothness and positional accuracy of the adjustment action.

[0031] Specifically, in this embodiment, the guide groove is L-shaped, while in other embodiments, the guide groove can also be T-shaped.

[0032] In another embodiment, the baffle 2 further includes a drive assembly, which includes a base plate 205 and an extension plate drive unit. The execution end of the extension plate drive unit is connected to the side surface of the extension plate 202 away from the side baffle 201. The drive end of the extension plate drive unit is disposed on the base plate 205, and the base plate 205 is disposed on the surface of the side baffle 201 facing the extension plate 202.

[0033] The base plate 205 is disposed on the surface of the side baffle 201 facing the extension plate 202. The base plate 205 and the side baffle 201 are fixed relative to each other. Specifically, the base plate 205 and the side baffle 201 are rigidly fixedly connected by welding, bolting or integral molding, forming the mounting and bearing base of the extension plate drive part.

[0034] The actuator of the extension plate drive unit is connected to the side surface of the extension plate 202 opposite to the side baffle 201. The extension plate drive unit is used to drive the extension plate 202 to slide relative to the side baffle 201 in order to adjust the flow volume of the baffle 2. The drive end of the extension plate drive unit is disposed on the base plate 205.

[0035] In another embodiment, the extension plate drive unit includes a threaded sleeve 206, a screw 207, and a drive shaft 208. The drive shaft 208 is rotatably mounted on the base plate 205. The screw 207 is connected to the drive shaft 208. The threaded sleeve 206 is threadedly connected to the screw 207. At the same time, the threaded sleeve 206 is fixed on the surface of the extension plate 202 on the side away from the side baffle 201.

[0036] The base plate 205 has a stepped hole, and the drive shaft 208 is rotatably mounted inside the stepped hole via a bearing, so that the drive shaft 208 is mounted on the base plate 205. The stepped surface of the stepped hole axially limits the bearing, restricting the bearing's movement along the axial direction of the drive shaft 208, while allowing the drive shaft 208 to rotate smoothly relative to the base plate 205.

[0037] The screw 207 is connected to the drive shaft 208, and the threaded sleeve 206 is threaded onto the screw 207. The drive shaft 208 synchronously drives the screw 207 to rotate in the same direction. Relying on the transmission action of the threaded pair, the threaded sleeve 206 moves linearly back and forth along the axis of the screw 207. The threaded sleeve 206 is fixedly connected to the extension plate 202, thereby driving the extension plate 202 to move relative to the side baffle 201, thereby realizing the adjustment of the flow guiding volume.

[0038] Specifically, a limit block is provided at the end of the screw 207 away from the drive shaft 208. The limit block limits the stroke of the threaded sleeve 206 to prevent the threaded sleeve 206 from slipping out of the end of the screw 207 due to overtravel, and at the same time avoids the extension plate 202 from slipping or falling off. A handle 212 is installed at the end of the drive shaft 208 away from the screw 207. The operator can manually control the drive shaft 208 and the screw 207 to rotate synchronously by rotating the handle 212, so as to manually adjust the sliding position of the extension plate 202.

[0039] In other embodiments, to improve the automation level of the conveyor tail section, the extension plate drive unit can also be a linear motor or an electric actuator, etc.

[0040] In other embodiments, the vibration mechanism includes a bushing 401, an inner tube 402, and a support rod 403; the bushing 401 is coaxially disposed within the bushing 301, a first magnet 404 is disposed circumferentially on the outer peripheral surface of the inner tube 402, the first magnet 404 extends at least partially into the inner tube 402, the inner tube 402 is coaxially disposed within the bushing 401 so that the bushing 401 encloses the first magnet 404, a second magnet 405 is disposed circumferentially on the outer peripheral surface of the support rod 403, the support rod 403 is coaxially disposed within the inner tube 402 so that the inner tube 402 encloses the second magnet 405.

[0041] Among them, the bushing 401 is a wear-resistant cylindrical component, which is coaxially fitted inside the bushing 301 of the support mechanism 3 to form the outer layer protection and mounting base of the vibration mechanism; the inner tube 402 is a hollow tubular component, which is coaxially nested inside the bushing 401. Multiple first magnets 404 are evenly distributed along the circumferential direction on the outer circumferential surface of the inner tube 402. The first magnet 404 is a strip permanent magnet with a rectangular radial cross section. The inner end of the first magnet 404 is embedded in the tube wall of the inner tube 402 and extends radially into the inner cavity of the inner tube 402.

[0042] Specifically, multiple radial positioning protrusions are evenly arranged on the outer circumferential surfaces of both ends of the inner tube 402. Through the multi-point support of the multiple radial positioning protrusions, the inner tube 402 is supported on the inner wall of the bushing 301, so that the inner tube 402 is stably supported at the central axis position of the bushing 301, ensuring the coaxial positioning of the inner tube 402 and the bushing 301.

[0043] Among them, the support rod 403 is the core support shaft of the vibration mechanism, and is coaxially set in the internal cavity of the inner tube 402. Multiple second magnets 405 are evenly distributed along the circumferential direction on the outer circumferential surface of the support rod 403. The second magnets 405 are bar electromagnets with a rectangular radial cross section. The second magnets 405 and the first magnets 404 are arranged opposite each other in the radial direction, and a preset radial gap is left between them.

[0044] Specifically, the bushing 301 is provided with sealing caps 302 at both ends. The sealing caps 302 prevent coal dust and moisture from entering the internal electromagnetic mechanism and suppress the outward transmission of impact noise. The sealing caps 302 are sound insulation plates and have inlet holes.

[0045] Among them, elastic sheets 406 are respectively provided on both sides of the first magnet 404, and the elastic sheets 406 are used to provide radial elastic restoring force for the first magnet 404.

[0046] The elastic sheet 406 is a metal sheet (such as spring steel). Its fixed end is welded to the outer circumferential surface of the inner tube 402, and its free end is rigidly connected to the side wall of the first magnet 404, so that the first magnet 404 is elastically suspended on the inner tube 402 in a cantilever form, which is used to provide radial elastic restoring force for the first magnet 404.

[0047] The first magnet 404 is evenly spaced along the circumference on the outer circumferential surface of the inner tube 402, and the second magnet 405 is evenly spaced along the circumferential surface of the support rod 403, with each second magnet 405 corresponding to one of the first magnets 404. This symmetrical arrangement ensures uniform magnetic attraction across the circumferential direction, creating an electromagnetic self-centering effect on the support rod 403. When the support rod 403 becomes radially eccentric, the gap between the magnets on the eccentric side decreases, and the magnetic attraction increases, automatically pulling the support rod 403 back to the central axis position of the inner tube 402. This maintains coaxiality without the need for additional bearings or rigid positioning structures. Simultaneously, the evenly spaced arrangement of the first magnet 404 and the second magnet 405 creates stable and uniform radial vibration, preventing vibration skew or structural wobbling caused by unilateral impacts, thus improving vibration transmission efficiency and structural stability.

[0048] The specific implementation process is as follows: When the second magnet 405 is energized, it generates a magnetic field toward the center of the inner tube 402, which applies a radial attraction force to the first magnet 404 facing it. This attraction force overcomes the pre-tightening force of the elastic sheet 406 on the inner tube 402, causing the first magnet 404 to move rapidly toward the center of the inner tube 402, while compressing the elastic sheet 406 to store elastic potential energy.

[0049] When the second magnet 405 is de-energized, the magnetic field disappears, the elastic sheet 406 releases the stored elastic potential energy, and pushes the first magnet 404 to rebound rapidly outward, violently impacting the inner wall of the bushing 401. The high-frequency impact is then converted into mechanical vibration and transmitted to the baffle 2 through the bushing 301.

[0050] By controlling the periodic switching on and off of the second magnet 405, the first magnet 404 can be driven to repeatedly strike the inner wall of the bushing 401, generating high-frequency micro-amplitude mechanical vibration. This vibration is efficiently transmitted to the entire baffle 2 through the bushing 301, forming a uniform vibration field. This can break the adhesion between the coal and the inner wall of the baffle 2, preventing wet coal or pulverized coal from sticking to the wall. It also causes the piled coal to loosen and slide down, avoiding the formation of a "coal arch" or blockage at the discharge port 210. Furthermore, it helps to clear residual coal and improves the thoroughness of discharge.

[0051] In another embodiment, the support mechanism 3 further includes a connecting component, which includes a connecting seat 303 and a connecting plate 304. The connecting seat 303 is disposed on the outer peripheral surface of the bushing 301 facing the side of the baffle 2. The connecting plate 304 is sleeved on the connecting seat 303. The material discharge end of the baffle 2 is provided with an installation port 209. The connecting seat 303 is inserted into the installation port 209 so that the baffle 2 is fixed on the connecting plate 304.

[0052] The support mechanism 3 also includes a connecting assembly for connecting the bushing 301 and the baffle 2. The connecting assembly includes a connecting seat 303 and a connecting plate 304. The connecting seat 303 is fixedly disposed on the outer circumferential surface of the bushing 301 and extends toward the material discharge end of the baffle 2. The connecting plate 304 is a plate-shaped component with mounting holes that match the shape of the connecting seat 303, so that the connecting plate 304 is sleeved on the connecting seat 303 through the mounting holes to form a circumferential limiting fit. At the same time, the connecting plate 304 and the connecting seat 303 can be rigidly fixed by welding, bolting, or other methods.

[0053] The baffle 2 has an installation port 209 at its discharge end, which is adapted to the contour of the connecting plate 304. During assembly, the connecting seat 303 is inserted into the installation port 209, and the baffle 2 is fixed to the connecting plate 304 by fasteners 211, thus achieving reliable fixation between the bushing 301 and the baffle 2. Through the combined structure of the connecting seat 303 and the connecting plate 304, the bushing 301 and the baffle 2 can be connected as one unit, ensuring that the discharge end of the baffle 2 is stably supported on the bushing 301, so that the baffle 2 is in an inclined arrangement with the discharge end higher than the output end; it can also efficiently transmit the high-frequency vibration generated by the vibration mechanism inside the bushing 301 to the entire baffle 2. The fasteners 211 are bolts, and the detachable connection method facilitates the later replacement and cleaning of the baffle 2.

[0054] In another embodiment, the tail section of the belt conveyor also includes an adjustment mechanism 5, which is mounted on the tail frame 1 to support the baffle 2 and is located at the discharge end of the baffle 2. The adjustment mechanism 5 can change the height of the discharge end of the baffle, thereby adjusting the inclination angle of the guide slope of the baffle 2. Changing the inclination angle can control the coal falling trajectory and buffering effect, adapting to different belt speeds, coal quantities, or drop. Since the inclination angle of the baffle 2 directly affects the falling angle and speed direction of the coal after leaving the discharge port 210, by reasonably adjusting the inclination angle, the coal flow can be accurately placed onto the conveyor belt, avoiding local concentrated impact that could cause belt deviation or damage, or secondary coal spillage due to rebound.

[0055] At the same time, as the inclination angle of baffle 2 increases, the component force of coal sliding down baffle 2 under the action of gravity increases, thereby accelerating the coal sliding speed; shortening the residence time of coal in the inner cavity of baffle 2, and reducing the risk of accumulation caused by retention.

[0056] In another embodiment, the adjustment mechanism 5 includes an adjustment drive unit 501 and a crossbar 502. The adjustment drive units 501 are respectively provided on both sides of the tail frame 1, and the two ends of the crossbar 502 are respectively connected to the execution ends of the corresponding adjustment drive units 501.

[0057] The tail frame 1 is provided with adjustment drive units 501 on both sides. The adjustment drive unit 501 is an electric actuator, or a hydraulic actuator in other embodiments. The two ends of the crossbar 502 are connected to the execution ends of the corresponding adjustment drive unit 501. The crossbar 502 is used to support the discharge end of the baffle 2. The tilt angle of the guide slope of the baffle 2 is adjusted by extending or shortening the adjustment drive unit 501.

[0058] The tail frame 1 is symmetrically equipped with adjustment drive units 501 on both sides. The adjustment drive unit 501 is a telescopic linear drive element, preferably an electric actuator, but in other embodiments, a hydraulic rod, cylinder, or screw lifting mechanism can also be used. The cylinder end of the adjustment drive unit 501 is fixedly installed on the tail frame 1, and its piston rod (actuating end) is arranged vertically upward. The crossbar 502 is a rigid and smooth support rod to ensure smooth contact with the bottom surface of the baffle 2 during adjustment, reduce frictional resistance, and avoid jamming. Its two ends are fixedly connected to the top of the piston rod of the adjustment drive unit 501 on both sides, so that the crossbar 502 can move vertically up and down synchronously with the extension and retraction of the adjustment drive unit 501. The top of the crossbar 502 abuts against the bottom of the discharge end of the baffle 2, forming a stable support for the discharge end of the baffle 2.

[0059] The material discharge end of baffle 2 forms a fixed fulcrum with the tail frame 1 through the support mechanism 3. When the adjustment drive units 501 on both sides extend synchronously, the crossbar 502 drives the discharge end of baffle 2 to rise upward, and the inclination angle of the guide slope of baffle 2 decreases. When the adjustment drive units 501 shorten synchronously, the crossbar 502 drives the discharge end of baffle 2 to fall downward, and the inclination angle of the guide slope increases. By controlling the extension length of the adjustment drive units 501, the material guiding requirements of different material characteristics can be adapted.

[0060] Specifically, limit baffles 503 are provided at both ends of the crossbar 502. Through the lateral blocking effect of the limit baffles 503, the baffles 2 are laterally limited to prevent them from shifting left or right or slipping off the ends of the crossbar 502 during material impact, mechanism vibration and tilt adjustment.

[0061] A more specific implementation process is as follows: After the material (coal) falls from above into the inclined baffle 2, it is first constrained by the space enclosed by the material receiving base plate and the side baffles 201 on both sides, preventing high-speed material from directly impacting the conveyor belt and causing splashing and deviation. The material dropping end of the baffle 2 is rigidly installed on the tail frame 1 through the bushing 301, connecting seat 303 and connecting plate 304 of the support mechanism; the material discharge end of the baffle 2 is supported by the crossbar 502 of the adjustment mechanism 5. By synchronously driving the adjustment drive parts 501 on both sides to rise and fall, the crossbar 502 can be moved up and down, thereby precisely adjusting the inclination angle of the baffle 2. When the inclination angle increases, the downward force of the coal is enhanced and the flow rate is accelerated, which can reduce the retention and accumulation of wet coal and pulverized coal; when the inclination angle is reduced, the buffering effect is improved, which is suitable for low drop and small coal volume conditions, and finally allows the coal flow to fall accurately from the coal outlet into the center of the conveyor belt, avoiding local impact deviation and rebound coal spillage.

[0062] The extension plates 202 on both sides of the baffle 2 are equipped with drive components. Turning the handle 212 can drive the screw 207 to rotate, causing the extension plates 202 to slide along the first guide section, thereby adjusting the flow guiding volume of the baffle 2. When the coal volume is small, the flow guiding volume is reduced to enhance the flow concentration; when the coal volume is large, the flow guiding volume is increased to prevent lateral coal spillage and adapt to different coal flow widths.

[0063] During the conveying process, the second magnet 405 is periodically switched on and off. When it is powered on, it attracts the first magnet 404 and retracts inward. When it is powered off, the elastic sheet 406 pushes the first magnet 404 to strike the bushing 401 at high frequency. The resulting vibration is transmitted to the entire baffle 2 through the bushing 301, which breaks the adhesion between the coal and the wall, preventing the coal from sticking to the wall, arching, and clogging the coal outlet. Combined with the tilt angle adjustment, it further improves the smoothness of material discharge.

[0064] It will be readily understood by those skilled in the art that the aforementioned advantageous methods can be freely combined and superimposed without conflict.

[0065] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application. The above are merely preferred embodiments of this application. 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 application, and these improvements and modifications should also be considered within the protection scope of this application.

Claims

1. A tail of a belt conveyor, characterized in that include: Baffle (2); The baffle (2) includes a side baffle (201) and an extension plate (202). The extension plate (202) is disposed on the side baffle (201) and slides relative to the side baffle (201) to adjust the flow guiding volume of the baffle (2); Support mechanism (3); the support mechanism (3) is set on the tail frame (1), and the material dropping end of the baffle (2) is connected to the support mechanism (3); Vibration mechanism; the support mechanism (3) includes a bushing (301), the vibration mechanism is disposed inside the bushing (31), and the vibration mechanism is used to apply high-frequency vibration to the material dropping end of the baffle (2).

2. A tail for a belt conveyor as claimed in claim 1, characterised in that The baffle (2) further includes a guide assembly, which includes a first guide portion (203) and a second guide portion (204). The first guide portion (203) is disposed on the outer side of the side baffle (201), and the second guide portion (204) is disposed on the surface of the extension plate (202) facing the side baffle (201). The first guide portion (203) and the second guide portion (204) cooperate to allow the extension plate (202) to slide relative to the side baffle (201).

3. A tail for a belt conveyor as claimed in claim 1, characterized in that The baffle (2) further includes a drive assembly, which includes a base plate (205) and an extension plate drive unit. The execution end of the extension plate drive unit is connected to the side surface of the extension plate (202) away from the side baffle (201). The drive end of the extension plate drive unit is disposed on the base plate (205), and the base plate (205) is disposed on the surface of the side baffle (201) facing the extension plate (202).

4. A tail for a belt conveyor as claimed in claim 3, characterised in that The extension plate drive unit includes a threaded sleeve (206), a screw (207), and a drive shaft (208). The drive shaft (208) is rotatably mounted on the base plate (205). The screw (207) is connected to the drive shaft (208). The threaded sleeve (206) is threaded onto the screw (207). At the same time, the threaded sleeve (206) is fixed on the surface of the extension plate (202) away from the side baffle (201).

5. A tail for a belt conveyor as claimed in claim 1, characterized in that The vibration mechanism includes a bushing (401), an inner tube (402), and a support rod (403). The bushing (401) is coaxially disposed inside the bushing (301). A first magnet (404) is disposed circumferentially on the outer circumferential surface of the inner tube (402). The first magnet (404) extends at least partially into the inner tube (402). The inner tube (402) is coaxially disposed inside the bushing (401) so that the bushing (401) encloses the first magnet (404). A second magnet (405) is disposed circumferentially on the outer circumferential surface of the support rod (403). The support rod (403) is coaxially disposed inside the inner tube (402) so that the inner tube (402) encloses the second magnet (405).

6. A tail for a belt conveyor as claimed in claim 5, characterised in that The first magnet (404) has elastic sheets (406) on both sides, and the elastic sheets (406) are used to provide radial elastic restoring force for the first magnet (404).

7. A tail for a belt conveyor as claimed in claim 5, characterised in that The first magnet (404) is evenly spaced on the outer circumferential surface of the inner tube (402) along the circumferential direction, and the second magnet (405) is evenly spaced on the outer circumferential surface of the support rod (403) along the circumferential direction, and the second magnet (405) is arranged in a one-to-one correspondence with the first magnet (404).

8. A tail for a belt conveyor as claimed in claim 1, characterized in that The support mechanism (3) further includes a connecting component, which includes a connecting seat (303) and a connecting plate (304). The connecting seat (303) is disposed on the outer circumferential surface of the bushing (301) facing the side of the baffle (2). The connecting plate (304) is sleeved on the connecting seat (303). The material discharge end of the baffle (2) is provided with an installation port (209). The connecting seat (303) is inserted into the installation port (209) so that the baffle (2) is fixed on the connecting plate (304).

9. A tail for a belt conveyor according to any one of claims 1 to 8, characterized in that The tail of the belt conveyor also includes an adjustment mechanism (5), which is set on the tail frame (1) to support the baffle (2) and is located at the discharge end of the baffle (2).

10. The tail section of a belt conveyor according to claim 9, characterized in that, The adjustment mechanism (5) includes an adjustment drive unit (501) and a crossbar (502). The tail frame (1) is provided with adjustment drive units (501) on both sides. The two ends of the crossbar (502) are respectively connected to the execution ends of the corresponding adjustment drive units (501).

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