Mine belt conveyor deviation automatic correction assembly, material transportation equipment and adjustment method thereof

Abstract

This invention discloses an automatic belt conveyor deviation correction component and material transport equipment for mining, belonging to the technical field of belt conveyors. The automatic belt conveyor deviation correction component includes support plates symmetrically arranged on both sides of the frame, and further includes: a limiting roller, which is set on the lower side of the support plate via a connecting rod, for abutting and limiting the conveyor belt; and a force-bearing ring, which is sleeved on the limiting roller, with an elastic element provided between the top wall of the force-bearing ring and the support plate. This invention, by setting up an alternating material distribution mechanism, forces coal to be evenly distributed in the belt width direction from the material drop source, fundamentally preventing deviation caused by uneven load. Simultaneously, a mechanical linkage mechanism triggered by belt deviation automatically adjusts the posture of the correction roller group, effectively eliminating deviation while greatly reducing belt wear and significantly improving operational reliability and equipment lifespan.

Description

Technical Field

[0001] This invention relates to the field of belt conveyor technology, and in particular to an automatic belt conveyor deviation correction component and material transport equipment for mining, as well as its adjustment method. Background Technology

[0002] As a key continuous transportation device in mining production, the stability of belt conveyors directly affects the efficiency of the entire production system. However, in actual operation, belt misalignment is one of the most common and serious malfunctions. Slight misalignment can cause material spillage and belt wear, while severe misalignment can lead to belt tearing, fire, or even shutdown, causing huge economic losses and safety risks to enterprises.

[0003] Currently, most belt misalignment correction technologies are passive response types, meaning intervention only occurs after misalignment has occurred. Common methods include installing frustum-shaped self-aligning idlers on the edge of the drive drum, or adding fixed guide rollers or vertical rollers on both sides of the belt. When the belt misaligns and contacts these devices, friction generates a counter-correcting force. However, these methods have significant drawbacks: First, their corrective force is limited; for severe misalignment caused by excessively uneven loading at the material drop point, the correction effect is poor, often requiring repeated manual adjustments. Second, and most importantly, the continuous hard friction between the belt and the fixed guide rollers rapidly accelerates wear and damage to the belt edges, potentially causing longitudinal folding or tearing, significantly shortening the lifespan of expensive conveyor belts and increasing operating and maintenance costs.

[0004] Furthermore, current technologies generally overlook a crucial cause of belt misalignment—uneven material distribution at the discharge point. When coal is discharged from the hopper, its varying shape and particle size easily lead to segregation, causing large pieces of coal to separate from smaller pieces. This results in a severely uneven weight distribution across the belt's cross-section. Based on the principle that "the belt runs towards the lighter load side," the belt will naturally slide towards the less loaded side, causing misalignment. Existing devices cannot prevent this at its root; they can only passively remedy the situation after misalignment has occurred, addressing the symptoms but not the underlying cause. Summary of the Invention

[0005] This invention addresses the problem of belt misalignment in coal mine conveyors by proposing an automatic belt misalignment correction component, material transport equipment, and adjustment method. First, a symmetrical feeding hopper and a high-frequency oscillating material distribution component ensure uniform material distribution along the belt width from the source. Second, a mechanically linked correction component is designed, where a limit roller senses the misalignment trend and drives the overall displacement of the idler rollers, gently correcting the misalignment by utilizing the principle of "higher deviation, lower deviation," thus avoiding hard wear. Finally, the system integrates material distribution, detection, correction, and reset functions to form a fully automatic closed-loop control, achieving an integrated solution from root cause prevention to automatic correction, significantly improving operational reliability and safety.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: The automatic belt conveyor misalignment correction component for mining machines includes support plates symmetrically arranged on both sides of the frame, and also includes: The limiting roller is disposed on the lower side of the support plate via a connecting rod and is used to abut against and limit the conveyor belt of the belt conveyor. A force-bearing ring is sleeved on a limiting roller, and an elastic element is provided between the top wall of the force-bearing ring and the support plate. A belt alignment component is mounted on the frame and is used to correct the misaligned conveyor belt. The force ring is connected to a drive component for driving the belt alignment component to work. And an anti-deviation mechanism, which is mounted on the frame and is used to adjust the amount of coal lowered into the width direction of the conveyor belt.

[0007] Preferably, the correction assembly includes side plates fixed on both sides of the frame, an adjusting screw rotatably disposed between the two side plates, a movable sleeve threadedly connected to the adjusting screw, and a first idler roller fixed on the top of the movable sleeve. The first idler roller section includes a U-shaped plate, two first support plates fixedly connected to the U-shaped plate, a central idler roller disposed between the two first support plates, a second support plate and a third support plate symmetrically arranged on the U-shaped plate, and a side idler roller disposed between the second support plate and the third support plate on the same side. The movable sleeve is fixedly connected to the U-shaped plate of the first idler roller section.

[0008] Preferably, the drive assembly includes a rack plate fixedly connected to the force ring and a movable gear disposed on the adjusting screw and meshing with the rack plate; The rack plates connected to the force rings on both sides of the frame are respectively set on both sides of the adjusting screw.

[0009] Preferably, the drive assembly includes a push rod fixed on the force ring, a push switch disposed on the support plate and moving against the push rod, and a drive motor electrically connected to the push switch. The drive motor is fixed on one of the side plates and is used to drive the adjusting screw to rotate.

[0010] Preferably, the anti-deviation mechanism includes support frames symmetrically arranged on both sides of the frame, a hopper between the two support frames, an arc-shaped shell fixed to the bottom of the hopper, and material leveling components arranged on both sides of the hopper. The two material leveling components are used to alternately drop coal of the same weight along its width direction onto the upper surface of the conveyor belt. The feeding hopper includes a hopper body and a square interface set on the top of the hopper body. The bottom two sides of the hopper body are respectively provided with discharge ports that cooperate with the material leveling component on the same side. The length of the two discharge ports is half the length of the hopper body. A central guide block is provided between the two discharge ports. The inner wall of the hopper body is also provided with a guide surface for guiding the material to the discharge ports. The bottom of the arc-shaped shell is provided with a feeding port that cooperates with two sets of material leveling components, and a stop bar that cooperates with the material leveling components is fixedly provided in the middle of the arc-shaped shell.

[0011] Preferably, the material leveling assembly includes a mounting frame fixed on the bucket body, a reciprocating screw rotatably mounted on the mounting frame, a sleeve shell threadedly connected to the reciprocating screw, a connector mounted on the sleeve shell, an elastic telescopic rod movably connected to the connector, and a material leveling channel movably connected to the end of the elastic telescopic rod away from the connector. The material leveling channel slides on the outside of the bucket body and movably abuts against the stop bar. A material leveling motor for driving the reciprocating screw to rotate is fixed on the mounting frame. The mounting bracket is provided with telescopic protective sleeves on both the upper and lower sides, which are fitted onto the outside of the reciprocating lead screw. The end of the telescopic protective sleeve away from the mounting bracket is fixedly connected to the sleeve shell.

[0012] Preferably, the top opening width of the material leveling channel is smaller than its bottom opening width, and arc-shaped baffles are fixed on both sides of the top opening of the material leveling channel. The arc-shaped baffles are used to block the discharge port that cooperates with the material leveling channel on the same side. The inner wall of the material distribution channel is inclined and fixed with a flow divider plate, and the flow divider plate is provided with several feeding troughs at equal intervals.

[0013] Preferably, the connecting member includes a main bevel gear rotatably disposed on the inner wall of the sleeve housing and slidably connected to the keyway of the reciprocating screw, a secondary bevel gear rotatably disposed on the inner wall of the sleeve housing and meshing with the main bevel gear, a rotating rod fixedly connected to the secondary bevel gear, and an eccentric shaft disposed at the end of the rotating rod away from the secondary bevel gear. The eccentric shaft is movably connected to the elastic telescopic rod through a connecting ball.

[0014] A material transport device includes the aforementioned automatic deviation correction component for a mining belt conveyor, and further includes a belt conveyor mounted on a frame. The belt conveyor includes drive rollers rotatably mounted on both sides of the frame, a second idler roller section equidistantly mounted between the two drive rollers and connected to the frame, and a drive section mounted on the frame for driving one of the drive rollers to transport materials. The conveyor belt is mounted between the two drive rollers and supported by the second idler roller section. The second idler roller section has the same structure as the first idler roller section, and the U-shaped plate of the second idler roller section is connected to the frame.

[0015] This invention also discloses an adjustment method for an automatic correction component for belt conveyor misalignment in mining, comprising the following steps: S1: Initial Feeding and Diversion: Coal first enters the hopper body, and the central guide block and guide surface inside the hopper body naturally divert the coal to the discharge port areas on both sides of the lower part of the hopper body. S2: The material leveling components work alternately. Status A: Material is being received in the left material distribution channel, and the right material distribution channel is ready to discharge material; Left material distribution channel: The sleeve shell driven by the reciprocating screw moves upward. During the upward movement, the elastic telescopic rod pulls the material distribution channel to slide on the outer wall of the bucket. When the top opening of the left material distribution channel coincides with the discharge port on the bucket, the coal begins to fall into the left material distribution channel. The arc-shaped baffle blocks the rest of the discharge port area. At the same time, the rotation of the reciprocating screw drives the main bevel gear to rotate through the keyway, which in turn drives the secondary bevel gear, rotating rod and eccentric shaft. The rotation of the eccentric shaft is converted into high-frequency reciprocating oscillation of the left material equalization channel through the elastic telescopic rod. This oscillation causes the coal to shake and fill densely in the left material equalization channel, and the broken coal fills the gaps between the large coal pieces, so that the coal is evenly and tightly piled at the bottom of the channel. Right material distribution channel: At this time, the sleeve shell connected to it is in a downward state. Since the right material distribution channel is in contact with the stop rod and cannot rotate, it is in a waiting state for material to be fed. The elastic telescopic rod is compressed, and since it has not been fed before, it does not feed material at this time. Its top does not coincide with the discharge port on the same side, so it does not receive material at this time. Status B: Material is being fed into the left equalization channel, and received into the right equalization channel. When the reciprocating screw drives the sleeve housing to move to the end of its stroke and then moves in the opposite direction, the left material distribution channel begins to move downward. When it resets and moves downward, its top opening coincides with the discharge port and can still receive material. The elastic telescopic rod connected to the right material distribution channel gradually returns to its original position, and after the elastic telescopic rod returns to its original position, it moves with the upward-moving sleeve housing and begins to receive material. The top opening of the left material equalization channel is misaligned with the discharge port, stopping the receiving of materials. When it moves to the discharge port position, the coal that has been evenly mixed in the cavity begins to fall evenly onto the conveyor belt. At this time, the elastic telescopic rod connected to it is compressed, giving it enough time to discharge. This cycle repeats, with the two material feeding components alternating between receiving, feeding, and discharging materials to achieve continuous and uniform feeding onto the conveyor belt. S3: When the conveyor belt deviates due to reasons other than material discharge, the conveyor belt will squeeze the limit roller on one side; If the deviation is slight, the limit roller will act as a stop and provide initial correction. If the misalignment continues or worsens, the conveyor belt will lift the right-side load ring, compressing the elastic element; S4: The force ring moves upward, driving the drive assembly to rotate, which in turn drives the adjusting screw to rotate. This drives the threaded movable sleeve to move to the side where the conveyor belt is running off-center. The movable sleeve drives the entire first idler section to move to that side. The side idler on the side of the first idler section away from the direction of belt running off-center is lifted. Based on the characteristic that the belt runs higher but not lower, the conveyor belt tends to move to the higher side. This tendency is opposite to the current direction of belt running off-center, thus gradually correcting the belt back to the center position. When the conveyor belt is reset, the pressure on the force ring disappears, and the mechanism resets under the action of the elastic element, stopping the correction action.

[0016] Compared with the prior art, the present invention provides an automatic correction component for belt conveyor misalignment in mining, a material transport device, and an adjustment method thereof, which has the following beneficial effects: 1. In this invention, an anti-deviation mechanism is integrated into the material feeding stage. Its core consists of a feeding hopper and two symmetrically arranged material equalization components. The central guide block in the feeding hopper initially diverts the material. Subsequently, the two material equalization channels, driven by a reciprocating screw and an eccentric swing mechanism, alternately receive material, perform high-frequency swing equalization, and feed material. This can forcibly mix and compact large and small pieces of coal, ensuring that the weight distribution of the material finally fed onto the conveyor belt is uniform along its width direction. This fundamentally solves the problem of "the belt deviating to the light load side due to uneven material feeding," moving the prevention and control of deviation forward and transforming passive remediation into proactive prevention.

[0017] 2. In this invention, when the conveyor belt deviates due to reasons other than material dropping, such as mechanical alignment errors, the deviated belt will squeeze the limiting roller and lift the force ring. Then, the displacement signal is converted into the rotational motion of the adjusting screw through the drive component. The screw drives the moving sleeve to move the entire first idler roller to the side of the deviation. This action lifts the side of the conveyor belt away from the deviation. Utilizing its inherent characteristic of running high but not low, a gentle yet powerful internal tension difference is generated, which automatically guides the conveyor belt back to the center line. This avoids the wear and tear problems caused by direct friction between the traditional guide roller, vertical roller and the belt edge. While efficiently correcting the deviation, it greatly protects the conveyor belt and avoids secondary damage to the belt during the correction process.

[0018] 3. In this invention, the material leveling component is set to work continuously to prevent deviation. Once deviation occurs, the force ring can instantly sense it and trigger the correction action through the drive component. After the correction is completed, the correction component automatically stops working and resets with the reset of the conveyor belt. The entire process does not require manual intervention and realizes fully automatic prevention, monitoring and correction closed-loop control. It solves the problems of traditional methods that rely on manual inspection, response lag and poor correction accuracy, significantly reduces the labor intensity and operational risks of workers, and ensures continuous and efficient production.

[0019] 4. In this invention, the inclined diversion plate and the feeding trough inside the material equalization channel can redistribute the material from the smaller discharge port along the entire length of the equalization channel. More importantly, the material equalization channel is driven by the elastic telescopic rod and the eccentric mechanism to generate high-frequency reciprocating oscillation during the material receiving process. This dynamic process effectively breaks the "segregation" phenomenon of the material, allowing the crushed coal to fully fill the gaps between the large coal pieces, forming a dense, gapless, uniform material layer at the bottom of the channel. The dynamic and static material equalization design overcomes the defect that relying solely on a fixed guide plate cannot solve the problem of weight distribution, providing a guarantee to prevent deviation from the source and fully realizing the material homogenization effect. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the structure of the first idler roller section of the present invention. Figure 1 ; Figure 4 for Figure 3 Enlarged structural diagram of section A in the middle; Figure 5 This is a schematic diagram of the structure of the first idler roller section of the present invention. Figure 2 ; Figure 6 This is a schematic diagram of the external structure of the adjusting screw of the present invention; Figure 7 This is a schematic diagram of the anti-deviation mechanism of the present invention; Figure 8 This is a cross-sectional structural diagram of the hopper of the present invention; Figure 9 for Figure 8 Enlarged structural diagram of section B in the middle; Figure 10 This is a schematic diagram of the external structure of the reciprocating lead screw of the present invention; Figure 11 This is a schematic diagram of the separation structure of the feeding hopper and the uniform material channel of the present invention; Figure 12 This is a schematic diagram of the structure of the two material distribution channels of the present invention when they are far apart from each other.

[0021] In the diagram: 1. Frame; 101. Support frame; 2. Support plate; 201. Limiting roller; 202. Connecting rod; 203. Force ring; 204. Elastic element; 3. Belt conveyor; 301. Conveyor belt; 302. Drive roller; 303. Second idler section; 304. Drive section; 4. Side plate; 401. Adjusting screw; 402. Moving sleeve; 5. U-shaped plate; 501. First support plate; 502. Center idler roller; 503. Second support plate; 504. Third support plate; 505. Side idler roller; 6. Rack plate; 601. Movable gear; 7. Top rod; 701. Drive motor; 7 02. Press switch; 8. Hopper; 801. Hopper body; 8011. Discharge port; 802. Square interface; 803. Central guide block; 9. Arc-shaped shell; 901. Discharge port; 902. Stop bar; 10. Mounting bracket; 11. Reciprocating screw; 111. Sleeve shell; 112. Connecting piece; 1121. Main bevel gear; 1122. Secondary bevel gear; 1123. Rotating rod; 1124. Eccentric shaft; 113. Elastic telescopic rod; 114. Material distribution channel; 1141. Arc-shaped baffle; 115. Material distribution motor; 12. Telescopic protective sleeve; 13. Diverter plate; 131. Discharge trough. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0023] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", 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 this 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 limitations on this invention.

[0024] like Figures 1 to 4As shown, this embodiment proposes an automatic belt conveyor deviation correction component, including support plates 2 symmetrically arranged on both sides of the frame 1, and further including: a limiting roller 201, a force ring 203, a deviation correction component, and an anti-deviation mechanism; the limiting roller 201 is arranged on the lower side of the support plate 2 via a connecting rod 202, and is used to abut against and restrict the conveyor belt 301 of the belt conveyor 3; the force ring 203 is sleeved on the limiting roller 201, and an elastic element 204 is arranged between the top wall of the force ring 203 and the support plate 2, and the elastic element 204 is preset with a threshold to adapt to load variations; the deviation correction component is arranged on the frame 1, and is used to correct the deviation of the conveyor belt 301, and the force ring 203 is connected to a drive component for driving the deviation correction component; the anti-deviation mechanism is arranged on the frame 1, and is used to adjust the amount of coal dropped onto the conveyor belt 301 in the width direction, aiming to balance the load from the source and prevent deviation due to uneven material drop; Specifically, during the operation of the belt conveyor, the anti-deviation mechanism works continuously, adjusting the distribution of falling coal through its internal mechanism to ensure that the coal is evenly spread across the entire width of the conveyor belt 301, thus achieving active anti-deviation. If the conveyor belt 301 still deviates due to other reasons, its edge will press against the limiting roller 201 on the deviated side. If the deviation force exceeds the preload of the elastic element 204, the conveyor belt 301 will lift the force ring 203, causing it to slide up along the limiting roller 201 and compress the elastic element 204. This displacement of the force ring 203 directly activates the drive component connected to it. The drive component transmits the displacement signal to the correction component, driving the correction component to perform a specific correction action, pushing the deviated conveyor belt 301 back to the center position. When the conveyor belt 301 returns to the center, the pressure on the limiting roller 201 and the force ring 203 disappears, the compressed elastic element 204 pushes the force ring 203 to reset, the drive component stops working, and the correction component also returns to its initial state, waiting for the next signal. With an independently designed anti-deviation mechanism, it no longer passively responds to deviations. Compared to the existing roller-type correction, it first starts from the material feeding stage, attempts to balance the load, and actively eliminates the main cause of deviation. Combined with the subsequent automatic correction function, it forms a complete technical system of "prevention" and "treatment", which significantly improves the thoroughness and reliability of deviation correction, greatly reduces belt wear, and significantly improves operational reliability and equipment life.

[0025] like Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, in a preferred embodiment, based on the above method, the correction assembly further includes side plates 4 fixed on both sides of the frame 1, an adjusting screw 401 rotatably disposed between the two side plates 4, a movable sleeve 402 threadedly connected to the adjusting screw 401, and a first roller fixed on the top of the movable sleeve 402; a protective tube should be provided on the outside of the movable sleeve 402 and slidably connected to the smooth section of the adjusting screw 401 to prevent external dust and impurities from accumulating on the external thread of the screw and affecting the transmission effect between the screw and the sleeve; The first idler section includes a U-shaped plate 5, two first support plates 501 fixedly connected to the U-shaped plate 5, a central idler 502 disposed between the two first support plates 501, a second support plate 503 and a third support plate 504 symmetrically arranged on the U-shaped plate 5, and a side idler 505 disposed between the second support plate 503 and the third support plate 504 on the same side. The movable sleeve 402 is fixedly connected to the U-shaped plate 5 of the first idler section. The two side idlers 505 and the central idler 502 together form a trough to accommodate and constrain the conveyor belt 301 and prevent coal from falling during conveying. Specifically, when the drive component is triggered, it transmits power to the adjusting screw 401, causing it to rotate. The rotational motion of the adjusting screw 401 is converted into the precise linear movement of the moving sleeve 402 along the screw axis through the threaded pair. The direction of movement depends on the direction of screw rotation. Since the moving sleeve 402 is fixedly connected to the U-shaped plate 5 of the first idler section, the entire first idler section will move together. The movement of the first idler section causes its support plane on the conveyor belt 301 to deflect in the horizontal direction. For example, when the first idler section moves to the left, the relative position of the right side of the belt is raised and the left side is lowered. This posture change prepares the mechanical conditions for subsequent correction of belt deviation using the "higher but not lower" principle. During the correction movement, the three idlers can maintain a strict relative position and move synchronously, ensuring that the support groove of the belt does not deform during the deflection process, thereby applying a stable and consistent correction force to the belt and avoiding secondary deviation or belt damage that may occur due to asynchronous idlers.

[0026] like Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, in a preferred embodiment, based on the above method, the drive assembly further includes a rack plate 6 fixedly connected to the force ring 203 and a movable gear 601 disposed on the adjusting screw 401 and meshing with the rack plate 6. The rack plates 6 connected to the force rings 203 on both sides of the frame 1 are respectively set on both sides of the adjusting screw 401; Specifically, when the conveyor belt 301 deviates to the right, it squeezes and lifts the right-side force ring 203. The upward movement of the right-side force ring 203 pushes the right-side rack plate 6, which is fixed to it, to move upward. The upward movement of the rack plate 6 drives the movable gear 601 meshing with it to rotate. According to the meshing principle, the upward push of the right-side rack plate 6 drives the movable gear 601 to rotate. The rotation of the movable gear 601 directly drives the adjusting screw 401 to rotate synchronously. If the belt deviates to the left, the left-side rack plate 6 pushes upward. Since the left-side rack plate 6 is located on the other side of the gear, its upward movement will drive the movable gear 601 to rotate in the opposite direction. When the belt is corrected... After centering, the force ring 203 moves downward under the action of the elastic element 204, driving the rack plate 6 to reset and disengage from the gear in a violent meshing state, and the mechanism returns to the standby state; the belt deviation detection (force ring 203 moving upward) and the correction action (adjusting screw 401 rotating) are directly linked through the gear meshing, without any delay in electrical signal processing or hydraulic / pneumatic valve response. Once the belt deviation reaches the threshold, the correction force is generated immediately, with an extremely fast response speed, which can effectively suppress the further development of deviation and achieve true "instantaneous correction"; it should be noted that, due to the working environment of coal transportation, a protective shell needs to be installed at the meshing point of the gear and rack to prevent dust and impurities from entering.

[0027] like Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, in a preferred embodiment, based on the above method, the drive assembly further includes a push rod 7 fixed on the force ring 203, a push switch 702 disposed on the support plate 2 and moving against the push rod 7, and a drive motor 701 electrically connected to the push switch 702. The drive motor 701 is fixed on one of the side plates 4 and is used to drive the adjusting screw 401 to rotate. Specifically, in another embodiment, when the conveyor belt 301 deviates and lifts the force ring 203 on one side, the push rod 7 fixed thereon moves upward accordingly. The upward-moving push rod 7 eventually presses against the push switch 702 set on the support plate 2. The push switch 702 is triggered, generating an electrical signal. This electrical signal is transmitted to the drive motor 701 through the line. The motor is energized and starts, driving the adjusting screw 401 to rotate. The rotation of the adjusting screw 401 drives the moving sleeve 402 to move, thereby correcting the belt deviation through the first idler roller. When the belt is corrected back to the center, the force ring 203... Under the action of the elastic element 204, the push rod 7 moves downward and disengages from the push switch 702. The electrical signal disappears, the drive motor 701 stops rotating, and the correction action ends. If the belt deviates to the other side, it is triggered by the independent push rod 7 on the other side and the push switch 702. The drive motor 701 is controlled by the circuit to rotate in the opposite direction to achieve reverse correction. Using the drive motor 701 as a power source can provide a strong and stable torque output, which is sufficient to drive the adjusting screw 401 to overcome resistance and effectively correct the heavy-duty belt, solving the problem of insufficient driving force that may exist in purely mechanical mechanisms.

[0028] like Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 and Figure 12 As shown, in a preferred embodiment, based on the above method, the anti-deviation mechanism further includes support frames 101 symmetrically arranged on both sides of the frame 1, a feeding hopper 8 arranged between the two support frames 101, an arc-shaped shell 9 fixed to the bottom of the feeding hopper 8, and material leveling components arranged on both sides of the feeding hopper 8. The two material leveling components are used to alternately drop coal of the same weight along its width direction onto the upper surface of the conveyor belt 301. The hopper 8 includes a hopper body 801 and a square interface 802 set on the top of the hopper body 801. The bottom sides of the hopper body 801 are respectively provided with discharge ports 8011 that cooperate with the material leveling component on the same side. The length of the two discharge ports 8011 is half the length of the hopper body 801. A central guide block 803 is provided between the two discharge ports 8011. The inner wall of the hopper body 801 is also provided with a guide surface for guiding the material to the discharge ports 8011. The bottom of the arc-shaped shell 9 is provided with a feeding port 901 that cooperates with two sets of material leveling components, and the middle part of the arc-shaped shell 9 is fixedly provided with a stop bar 902 that cooperates with the material leveling components. Furthermore, the material leveling assembly includes a mounting frame 10 fixed on the bucket body 801, a reciprocating screw 11 rotatably mounted on the mounting frame 10, a sleeve shell 111 threadedly connected to the reciprocating screw 11, a connector 112 mounted on the sleeve shell 111, an elastic telescopic rod 113 movably connected to the connector 112, and a material leveling channel 114 movably connected to the end of the elastic telescopic rod 113 away from the connector 112. The material leveling channel 114 slides on the outside of the bucket body 801 and movably abuts against the stop bar 902. A material leveling motor 115 for driving the reciprocating screw 11 to rotate is fixed on the mounting frame 10. The mounting bracket 10 is provided with telescopic protective sleeves 12 on both the upper and lower sides, which are sleeved on the outside of the reciprocating screw 11. The end of the telescopic protective sleeve 12 away from the mounting bracket 10 is fixedly connected to the sleeve shell 111. The protective sleeve is usually made of wear-resistant engineering plastic or rubber cloth, such as wear-resistant polyurethane coated cloth, and can extend and retract with the movement of the sleeve shell 111. Furthermore, the top opening width of the material distribution channel 114 is smaller than its bottom opening width, which facilitates the falling of coal in the material distribution channel 114 and prevents it from getting stuck at the bottom opening. Arc-shaped baffles 1141 are fixed on both sides of the top opening of the material distribution channel 114. The arc-shaped baffles 1141 are used to block the discharge port 8011 that cooperates with the material distribution channel 114 on the same side. A flow divider 13 is fixedly installed on the inclined inner wall of the material distribution channel 114, and several material discharge troughs 131 are equally spaced on the flow divider 13. Specifically, the material enters the hopper 8 through the square interface 802, and is guided by the central guide block 803 and the guide surface, and is naturally diverted to the two side discharge port 8011 areas; Channel A (receiving and leveling station): The leveling motor 115 drives the reciprocating screw 11 to rotate, which drives the sleeve shell 111 to move upward. The sleeve shell 111 pulls the leveling channel 114 around the hopper 8 upward through the elastic telescopic rod 113. During this period, the arc-shaped baffle 1141 blocks the other positions of the discharge port 8011 on this side. When it slides upward to the top opening and coincides with the discharge port 8011, the material begins to fall into the leveling channel 114. The material first falls on the diversion plate 13 and slides down its inclined surface. The material first passes through the first discharge trough 131 on the diversion plate 13. When the discharge trough 131 is not fast enough, the remaining material passes through the discharge trough 131 and continues to slide down to another discharge trough 131, so that the material is evenly scattered to the bottom of the channel through each discharge trough 131. At the same time, the rotation of the reciprocating screw 11 drives the leveling channel 114 to vibrate through the mechanism in the connecting piece 112, so that the material is densely filled. Channel B (standby or unloading station): At this time, the sleeve shell 111 of another material distribution channel 114 is in a downward state, and the material distribution channel 114 cannot rotate because it is in a stop bar 902, and is in a waiting state. Station switching: After channel A completes material receiving and uniform feeding, the reciprocating screw 11 reverses, causing its sleeve shell 111 to move downwards. Channel A slides down, and after its top opening is misaligned with the discharge port 8011, it stops receiving material. When it moves to the discharge port 901, it begins to evenly spread the uniformly fed material onto the conveyor belt 301. At the same time, the sleeve shell 111 of channel B moves upwards and begins to repeat the material receiving and uniform feeding process of channel A. The two channels alternate in this cycle to achieve uninterrupted uniform feeding. Through the alternating material receiving, internal homogenization, and re-discharging working mode of the two material equalization channels 114, the material is actively "pre-treated" to ensure that the weight distribution of the material falling on the belt width direction is highly uniform, effectively preventing deviation caused by eccentric loading from the root cause.

[0029] like Figure 8 and Figure 10 As shown, in a preferred embodiment, based on the above method, the connecting member 112 further includes a main bevel gear 1121 rotatably disposed on the inner wall of the sleeve housing 111 and slidably connected to the keyway of the reciprocating screw 11, a secondary bevel gear 1122 rotatably disposed on the inner wall of the sleeve housing 111 and meshing with the main bevel gear 1121, a rotating rod 1123 fixedly connected to the secondary bevel gear 1122, and an eccentric shaft 1124 disposed at the end of the rotating rod 1123 away from the secondary bevel gear 1122. The eccentric shaft 1124 is movably connected to the elastic telescopic rod 113 through a connecting ball. Specifically, when the feeding motor 115 drives the reciprocating screw 11 to rotate, the main bevel gear 1121 is connected to the reciprocating screw 11 via a keyway. The reciprocating screw 11 is provided with a helical track groove for driving the sleeve housing 111 to move axially. The depth and width of the keyway on the reciprocating screw 11 should be smaller than its helical track groove to avoid affecting the normal rotation of the sleeve housing 111. The main bevel gear 1121 is driven to rotate by the reciprocating screw 11. The rotating main bevel gear 1121 drives the meshing secondary bevel gear 1122 to rotate. The rotation of the secondary bevel gear 1122 drives the fixed rotating rod 1123 and the eccentric shaft 1124 at the end of the rod to perform circular motion together. The circular motion of the spindle 1124 is transmitted to the elastic telescopic rod 113 through the connecting ball. Since the other end of the elastic telescopic rod 113 is hinged to the material distribution channel 114, the circular motion of the eccentric shaft 1124 is converted into the regular reciprocating oscillation of the end of the elastic telescopic rod 113, which drives the material distribution channel 114 to generate high-frequency, small-amplitude vibration. The linkage design reduces the dependence on the motor and improves the stability of continuous operation of the mine. This stable and regular vibration is more effective than random vibration in redistributing and compacting materials of different sizes. At the same time, the flexible driving force is transmitted through the hinge of the elastic telescopic rod 113 and the connecting ball, avoiding damage to the structure caused by rigid impact.

[0030] like Figures 1 to 2As shown, this embodiment proposes a material transport equipment, including the aforementioned automatic deviation correction component for a mining belt conveyor, and also includes a belt conveyor 3 mounted on a frame 1. The belt conveyor 3 includes drive rollers 302 rotatably mounted on both sides of the frame 1, a second idler roller section 303 equidistantly mounted between the two drive rollers 302 and connected to the frame 1, and a drive section 304 mounted on the frame 1 for driving one of the drive rollers 302 to transport materials. The conveyor belt 301 is mounted between the two drive rollers 302 and supported by the second idler roller section 303. The second idler roller section 303 has the same structure as the first idler roller section, and the U-shaped plate 5 of the second idler roller section 303 is connected to the frame 1. Specifically, the drive unit 304 operates. The drive unit 304 is existing technology and uses a motor, synchronous pulley, and transmission belt to drive the drive roller 302 to rotate, thereby pulling the conveyor belt 301 to run continuously. Material falls evenly from the feed hopper 8 of the anti-deviation mechanism onto the surface of the conveyor belt 301, supported by the fixed second idler 303 and the adjustable first idler, and is transported to the other end of the equipment. During operation, the anti-deviation mechanism continuously operates, ensuring a uniform weight distribution of the material falling onto the conveyor belt 301 through its material equalization component, actively preventing deviation caused by uneven loading. If the belt deviates due to other reasons, the correction component adjusts the position of the first idler, automatically correcting the conveyor belt 301 back to the center using the principle of "higher but not lower," ensuring that the equipment achieves long-term, stable, and efficient continuous transportation under the dual protection of "active prevention as the main approach and automatic correction as a supplementary approach."

[0031] This invention also discloses an adjustment method for an automatic correction component for belt conveyor misalignment in mining, comprising the following steps: S1: Initial Feeding and Diversion: Coal first enters the hopper body 801 of the feeding hopper 8. The central guide block 803 and guide surface inside the hopper body 801 naturally divert the coal to the discharge port 8011 area on both sides of the lower part of the hopper body 801. S2: The material leveling components work alternately. Status A: Material receiving in left material distribution channel 114, material dispensing in right material distribution channel 114; Left material distribution channel 114: Its driven sleeve shell 111 moves upward under the action of the reciprocating screw 11. During the upward movement, the elastic telescopic rod 113 pulls the material distribution channel 114 to slide on the outer wall of the bucket body 801. When the top opening of the left material distribution channel 114 coincides with the discharge port 8011 on the bucket body 801, the coal begins to fall into the left material distribution channel 114. The arc-shaped baffle 1141 blocks the rest of the discharge port 8011. At the same time, the rotation of the reciprocating screw 11 drives the main bevel gear 1121 to rotate through the keyway, which in turn drives the secondary bevel gear 1122, the rotating rod 1123 and the eccentric shaft 1124. The rotation of the eccentric shaft 1124 is converted into a high-frequency reciprocating oscillation of the left material equalization channel 114 through the elastic telescopic rod 113. This oscillation causes the coal to shake and fill densely in the left material equalization channel 114, and the broken coal fills the gaps between the large coal pieces, so that the coal is evenly and densely piled at the bottom of the channel. Right material distribution channel 114: At this time, the sleeve shell 111 connected to it is in a downward state. Since the right material distribution channel 114 is in contact with the stop rod 902 and cannot rotate, it is in a waiting state for material to be fed. The elastic telescopic rod 113 is compressed, and since it has not been fed before, it does not feed material at this time. Its top does not coincide with the discharge port 8011 on the same side, so it does not receive material at this time. Status B: Material feeding from left equalization channel 114, material receiving from right equalization channel 114. When the reciprocating screw 11 drives the sleeve housing 111 to move to the end of its stroke and then moves in the opposite direction, the left material distribution channel 114 begins to move downward. When it resets and moves downward, its top opening coincides with the discharge port 8011 and can still receive material. The elastic telescopic rod 113 connected to the right material distribution channel 114 gradually recovers. After the elastic telescopic rod 113 recovers, it moves with the upward-moving sleeve housing 111 and begins to receive material. The top opening of the left material equalization channel 114 is misaligned with the discharge port 8011, and the material receiving stops. When it moves to the position of the discharge port 901, the coal that has been evenly distributed in the cavity begins to fall evenly onto the conveyor belt 301. At this time, the elastic telescopic rod 113 connected to it is compressed, giving it enough time to discharge. In this cycle, the two material feeding components alternately receive, distribute, and discharge materials to achieve continuous and uniform feeding to the conveyor belt 301. S3: When the conveyor belt 301 deviates due to reasons other than material discharge, the conveyor belt 301 will squeeze the limit roller 201 on one side; If the deviation is slight, the limit roller 201 will act as a stop and provide initial correction. If the deviation continues or worsens, the conveyor belt 301 will lift the right-side force ring 203 and compress the elastic element 204. S4: The force ring 203 moves upward, driving the drive assembly to rotate, causing the drive assembly to drive the adjusting screw 401 to rotate, driving the threaded movable sleeve 402 to move towards the side where the conveyor belt 301 is running off-center. The movable sleeve 402 drives the entire first idler section to move towards that side. The side idler 505 on the side of the first idler section away from the running-off direction lifts the side away from the running-off direction of the conveyor belt 301. According to the characteristic of the belt "running high but not low", the conveyor belt 301 has a tendency to move towards the higher side. This tendency is opposite to the current running-off direction of the conveyor belt 301, thereby gradually correcting the belt back to the center position. When the conveyor belt 301 is reset, the pressure on the force ring 203 disappears, and the mechanism resets under the action of the elastic element 204, and the correction action stops.

[0032] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0033] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An automatic belt conveyor misalignment correction assembly, comprising support plates (2) symmetrically arranged on both sides of a frame (1), characterized in that, Also includes: The limiting roller (201) is set on the lower side of the support plate (2) via a connecting rod (202) to abut against and limit the conveyor belt (301) of the belt conveyor (3). Force ring (203), the force ring (203) is sleeved on the limiting roller (201), and an elastic element (204) is provided between the top wall of the force ring (203) and the support plate (2). The correction component is mounted on the frame (1) and is used to correct the misaligned conveyor belt (301). The force ring (203) is connected to a drive component for driving the correction component to work. And an anti-deviation mechanism, which is set on the frame (1) and is used to adjust the amount of coal lowered to the width direction of the conveyor belt (301).

2. The automatic belt conveyor misalignment correction component for mines according to claim 1, characterized in that, The correction assembly includes side plates (4) fixed on both sides of the frame (1), an adjusting screw (401) rotatably disposed between the two side plates (4), a movable sleeve (402) threadedly connected to the adjusting screw (401), and a first idler roller fixed on the top of the movable sleeve (402). The first idler roller section includes a U-shaped plate (5), two first support plates (501) fixedly connected to the U-shaped plate (5), a center idler roller (502) disposed between the two first support plates (501), a second support plate (503) and a third support plate (504) symmetrically arranged on the U-shaped plate (5), and a side idler roller (505) disposed between the second support plate (503) and the third support plate (504) on the same side. The movable sleeve (402) is fixedly connected to the U-shaped plate (5) of the first idler roller section.

3. The automatic belt conveyor misalignment correction component for mines according to claim 2, characterized in that, The drive assembly includes a rack plate (6) fixedly connected to the force ring (203) and a movable gear (601) disposed on the adjusting screw (401) and meshing with the rack plate (6). The rack plates (6) connected to the force rings (203) on both sides of the frame (1) are respectively set on both sides of the adjusting screw (401).

4. The automatic belt conveyor misalignment correction component for mines according to claim 2, characterized in that, The drive assembly includes a push rod (7) fixed on a force ring (203), a push switch (702) mounted on a support plate (2) and moving against the push rod (7), and a drive motor (701) electrically connected to the push switch (702). The drive motor (701) is fixed on one of the side plates (4) and is used to drive the adjustment screw (401) to rotate.

5. The automatic belt conveyor misalignment correction component for mines according to claim 4, characterized in that, The anti-deviation mechanism includes support frames (101) symmetrically arranged on both sides of the frame (1), a feeding hopper (8) arranged between the two support frames (101), an arc-shaped shell (9) fixed at the bottom of the feeding hopper (8), and a material leveling assembly arranged on both sides of the feeding hopper (8). The two material leveling assemblies are used to alternately drop coal of the same weight along its width direction onto the upper surface of the conveyor belt (301). The feeding hopper (8) includes a hopper body (801) and a square interface (802) set on the top of the hopper body (801). The bottom sides of the hopper body (801) are respectively provided with discharge ports (8011) that cooperate with the material leveling component on the same side. The length of the two discharge ports (8011) is half the length of the hopper body (801). A central guide block (803) is provided between the two discharge ports (8011). The inner wall of the hopper body (801) is also provided with a guide surface for guiding the material to the discharge ports (8011). The bottom of the arc-shaped shell (9) is provided with a feeding port (901) that cooperates with two sets of material leveling components, and the middle part of the arc-shaped shell (9) is fixedly provided with a stop bar (902) that cooperates with the material leveling components.

6. The automatic belt conveyor misalignment correction component for mines according to claim 5, characterized in that, The material leveling assembly includes a mounting frame (10) fixed on the bucket body (801), a reciprocating screw (11) rotatably mounted on the mounting frame (10), a sleeve shell (111) threadedly connected to the reciprocating screw (11), a connector (112) mounted on the sleeve shell (111), an elastic telescopic rod (113) movably connected to the connector (112), and a material leveling channel (114) movably connected to the end of the elastic telescopic rod (113) away from the connector (112). The material leveling channel (114) slides on the outside of the bucket body (801) and movably abuts against the stop bar (902). A material leveling motor (115) for driving the reciprocating screw (11) to rotate is fixed on the mounting frame (10). The mounting bracket (10) is provided with telescopic protective sleeves (12) on both the upper and lower sides, which are sleeved on the outside of the reciprocating screw (11). The end of the telescopic protective sleeve (12) away from the mounting bracket (10) is fixedly connected to the sleeve shell (111).

7. The automatic belt conveyor misalignment correction component for mines according to claim 6, characterized in that, The top opening width of the uniform material channel (114) is smaller than its bottom opening width. Arc-shaped baffles (1141) are fixed on both sides of the top opening of the uniform material channel (114). The arc-shaped baffles (1141) are used to block the discharge port (8011) that cooperates with the uniform material channel (114) on the same side. The inner wall of the uniform material channel (114) is inclined and fixed with a flow divider plate (13), and a plurality of feed troughs (131) are equally spaced on the flow divider plate (13).

8. The automatic belt conveyor misalignment correction component for mines according to claim 7, characterized in that, The connecting member (112) includes a main bevel gear (1121) rotatably disposed on the inner wall of the sleeve shell (111) and slidably connected to the keyway of the reciprocating screw (11), a secondary bevel gear (1122) rotatably disposed on the inner wall of the sleeve shell (111) and meshing with the main bevel gear (1121), a rotating rod (1123) fixedly connected to the secondary bevel gear (1122), and an eccentric shaft (1124) disposed at the end of the rotating rod (1123) away from the secondary bevel gear (1122). The eccentric shaft (1124) is movably connected to the elastic telescopic rod (113) through a connecting ball.

9. A material transport device, comprising the automatic belt conveyor deviation correction component of claim 8, characterized in that, It also includes a belt conveyor (3) mounted on the frame (1). The belt conveyor (3) includes a drive roller (302) rotatably mounted on both sides of the frame (1), a second idler roller (303) equidistantly mounted between the two drive rollers (302) and connected to the frame (1), and a drive unit (304) mounted on the frame (1) for driving one of the drive rollers (302) to convey. The conveyor belt (301) is mounted between the two drive rollers (302) and supported by the second idler roller (303). The second idler roller (303) has the same structure as the first idler roller. The U-shaped plate (5) of the second idler roller (303) is connected to the frame (1).

10. A method for adjusting the automatic correction component for belt conveyor misalignment in a mine according to claim 9, characterized in that, Includes the following steps: S1: Initial Feeding and Diversion: Coal first enters the hopper body (801) of the feeding hopper (8). The central guide block (803) and guide surface inside the hopper body (801) naturally divert the coal to the discharge port (8011) area on both sides of the lower part of the hopper body (801). S2: The material leveling components work alternately. Status A: Material is being received in the left material distribution channel (114), and material is being prepared to be fed in the right material distribution channel (114); Left material distribution channel (114): Its driven sleeve shell (111) moves upward under the action of the reciprocating screw (11). During the upward movement, the elastic telescopic rod (113) pulls the material distribution channel (114) to slide on the outer wall of the bucket body (801). When the top opening of the left material distribution channel (114) coincides with the discharge port (8011) on the bucket body (801), the coal begins to fall into the left material distribution channel (114), and the arc-shaped baffle (1141) blocks the rest of the discharge port (8011). At the same time, the rotation of the reciprocating screw (11) drives the main bevel gear (1121) to rotate through the keyway, which in turn drives the secondary bevel gear (1122), the rotating rod (1123) and the eccentric shaft (1124). The rotation of the eccentric shaft (1124) is converted into a high-frequency reciprocating oscillation of the left uniform material channel (114) through the elastic telescopic rod (113). This oscillation causes the coal to shake and fill densely in the left uniform material channel (114), and the broken coal fills the gaps between the large coal pieces, so that the coal is evenly and densely piled at the bottom of the channel. Right material distribution channel (114): At this time, the sleeve shell (111) connected to it is in a downward state. Since the right material distribution channel (114) is in contact with the stop rod (902) and cannot rotate, it is in a waiting state for material to be discharged. The elastic telescopic rod (113) is compressed, and since it has not been fed before, it does not discharge material at this time. Its top does not coincide with the discharge port (8011) on the same side, so it does not receive material at this time. State B: Material is fed into the left equalization channel (114), and received into the right equalization channel (114). When the reciprocating screw (11) drives the sleeve shell (111) to move to the end of the stroke and move in the opposite direction, the left material distribution channel (114) begins to move down. When it resets and moves down, its top opening coincides with the discharge port (8011) and can still receive material. The elastic telescopic rod (113) connected to the right material distribution channel (114) gradually recovers. After the elastic telescopic rod (113) recovers, it moves with the upward-moving sleeve shell (111) and begins to receive material. The top opening of the left material equalization channel (114) is misaligned with the discharge port (8011), and the material receiving stops. When it moves to the position of the discharge port (901), the coal that has been evenly distributed in the cavity begins to fall evenly onto the conveyor belt (301). At this time, the elastic telescopic rod (113) connected to it is compressed, giving it enough time to discharge. In this cycle, the two material feeding components alternately receive, distribute, and discharge materials to achieve continuous and uniform feeding to the conveyor belt (301); S3: When the conveyor belt (301) deviates due to reasons other than material dropping, the conveyor belt (301) will squeeze the limit roller (201) on one side. If the deviation is slight, the limit roller (201) will act as a stop and provide initial correction. If the deviation continues or worsens, the conveyor belt (301) will lift the right-side force ring (203) and compress the elastic element (204). S4: The force ring (203) moves upward, causing the drive assembly to move, which in turn drives the adjusting screw (401) to rotate, driving the threaded movable sleeve (402) to move to the side where the conveyor belt (301) is running off-center. The movable sleeve (402) drives the entire first idler section to move to that side. The side idler (505) on the side of the first idler section away from the running-off direction lifts the side away from the running-off direction of the conveyor belt (301). According to the characteristic that the belt runs high but not low, the conveyor belt (301) has a tendency to move to the higher side. This tendency is opposite to the current running-off direction of the conveyor belt (301), thereby gradually correcting the belt back to the center position. When the conveyor belt (301) is reset, the pressure on the force ring (203) disappears. Under the action of the elastic element (204), the mechanism resets and the correction action stops.

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