Anti-accumulation hopper for belt conveyors

Abstract

The utility model relates to belt conveyor technical field especially relates to a kind of anti-accumulation hopper of belt conveyor, including the hopper body in the belt conveyor discharge port, the hopper body is equipped with guide plate, the guide plate is located in the front end of belt conveyor, and its center is fixedly connected with rotating shaft, the rotating shaft both ends are movably connected with hopper body side wall, and its one end passes through hopper body after, connect rotating component, the rotating component drives guide plate reciprocating rotation, by being provided with guide plate in the hopper body of discharge port, first contact guide plate in the process of falling to group or large block material, and after inertia impact, it is dispersed into small block material, then along with the reciprocating rotation of guide plate, evenly scattered in the hopper body below, avoid that material is accumulated together, reduce the risk of discharge port blockage, and the utility model is equipped with inductive rod on rotating shaft, the movement state of rotating shaft is judged by inductive rod and proximity switch, to protect the normal operation of equipment, reduce accident occurrence.

Description

Technical Field

[0001] This utility model relates to the field of belt conveyor technology, and in particular to an anti-accumulation hopper for belt conveyors. Background Technology

[0002] Belt conveyors are friction-driven conveying systems used to transport loose materials or packaged goods. They are widely used in mining, metallurgy, and coal industries. When belt conveyors transport powdery materials, blockages often occur. Through proactive inspection and observation, the following causes were identified: ① The feed rate at the inlet is too fast, causing material accumulation and failure to be transported in time, resulting in blockages; ② Excessive moisture or fibrous impurities in the material cause blockages; ③ Slippage of the conveyor belt leads to material accumulation and blockages; ④ Poor connection between the belt conveyor and the discharge point makes blockages more likely even with slightly higher flow rates. Adjusting the feed rate at the front end and regularly cleaning the conveyor belt and rollers can solve some blockage problems, but blockages at the conveyor belt discharge point still occur frequently. When the discharge point is blocked, the belt becomes covered by material, causing malfunctions, downtime, and interrupted material transport, thus affecting production. Therefore, improvements are needed to address the blockage problem at the discharge point.

[0003] The utility model patent with announcement number CN210084307U discloses an anti-clogging device for a conveyor belt trough. When the material in the conveyor belt trough continuously increases until the material contacts the inner surface of the movable baffle, the blocked material will cause the movable baffle to rotate along the movable pin until the outer surface of the movable baffle contacts the proximity switch. The proximity switch is connected in series with the conveyor belt control panel, and the conveyor belt control panel controls the motor to stop working, thereby preventing damage to the conveyor belt. The above device can prevent damage to the conveyor belt after a clogging problem occurs, but it does not solve the problem of material blockage in the discharge trough. Utility Model Content

[0004] In view of the problems existing in the prior art, this utility model provides an anti-blocking device that can prevent the material discharge port of a belt conveyor from becoming blocked.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An anti-accumulation hopper for a belt conveyor includes a hopper located at the discharge port of the belt conveyor. A guide plate is provided inside the hopper. The guide plate is located at the front end of the belt conveyor and a rotating shaft is fixedly connected to its center. Both ends of the rotating shaft are movably connected to the side wall of the hopper. One end passes through the hopper and is connected to a rotating assembly. The rotating assembly drives the guide plate to rotate reciprocally.

[0007] The anti-accumulation hopper of the aforementioned belt conveyor includes a rotating assembly comprising a first impeller, a rotating bracket, a first gear, a second gear, a gear shaft, and a first drive motor. The first impeller is fixedly connected to the rotating shaft, and multiple impeller columns are circumferentially arranged on the side away from the hopper. The first drive motor is mounted on the side wall of the hopper, and its output end is connected to the gear shaft. The gear shaft is axially connected to the rotating bracket, which is located on the left and right sides of the first impeller. The first gear and the second gear are fixedly connected to the gear shaft. The first gear and the second gear have the same structure and are both incomplete gears. Their tooth grooves cooperate with the impeller columns, and the first impeller is driven to reciprocate through the first gear and the second gear.

[0008] The anti-accumulation hopper of the aforementioned belt conveyor includes a rotating assembly comprising a second impeller, a third gear, a fourth gear, and a second drive motor. The second impeller is fixedly connected to a rotating shaft, and its side wall is provided with multiple grooves circumferentially. The second drive motor is mounted on the side wall of the hopper, and its output end is connected to the third gear. The third gear has multiple gear columns on the side away from the hopper, and the connecting line of the multiple gear columns is arc-shaped. The gear columns cooperate with the grooves of the second impeller. The fourth gear has the same structure as the third gear, and the two mesh with each other. The second impeller is driven to reciprocate through the third gear and the fourth gear.

[0009] The aforementioned anti-accumulation hopper of the belt conveyor has a sensing rod fixedly installed on the rotating shaft, and a proximity switch correspondingly installed on the side wall of the hopper body.

[0010] The beneficial effects of adopting the above technical solution are as follows:

[0011] This invention features a guide plate within the hopper body at the discharge port. This allows clumps or large pieces of material to first contact the guide plate during their descent, dispersing into smaller pieces upon impact. As the guide plate reciprocates, these smaller pieces are evenly distributed below the hopper body, preventing material accumulation and reducing the risk of discharge port blockage. Furthermore, this invention proposes two implementations of the rotating assembly, both utilizing a drive motor to rotate two gears. These gears then drive the guide plate in reciprocating motion, converting the gears' circular motion into the guide plate's reciprocating rotation. Additionally, this invention includes a sensing rod on the rotating shaft. As the shaft rotates, the sensing rod rotates accordingly, moving closer to or away from a proximity switch. The proximity switch determines the shaft's motion status. If the guide plate stops rotating due to malfunction or material blockage, the intelligent controller can automatically stop the belt conveyor and drive motor, protecting the equipment's normal operation and reducing the risk of accidents. Attached Figure Description

[0012] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0013] Figure 1 This is a cross-sectional view of the present invention (not drawn to scale);

[0014] Figure 2 This is a schematic diagram of the structure of the first embodiment of the present utility model (not drawn to scale);

[0015] Figure 3 for Figure 2 Enlarged view of part A in the middle (not drawn to scale);

[0016] Figure 4 This is a structural schematic diagram of the second embodiment of the present utility model (not drawn to scale);

[0017] Figure 5 for Figure 4 Enlarged view of part B in the middle (not drawn to scale).

[0018] In the diagram: 1. Belt conveyor; 2. Hopper body; 3. Guide plate; 4. Rotating shaft; 51. First wheel; 511. Wheel column; 52. Rotating bracket; 53. First gear; 54. Second gear; 55. Gear shaft; 56. First drive motor; 61. Second wheel; 611. Groove; 62. Third gear; 621. Gear column; 63. Fourth gear; 64. Second drive motor; 7. Sensing rod; 8. Proximity switch. Detailed Implementation

[0019] like Figure 1-5 As shown, this utility model includes a hopper body 2 located at the discharge port of a belt conveyor 1. A guide plate 3 is provided inside the hopper body 2. The guide plate 3 is located at the front end of the belt conveyor 1, and a rotating shaft 4 is fixedly connected to its center. Both ends of the rotating shaft 4 are movably connected to the side wall of the hopper body 2. One end passes through the hopper body 2 and is connected to a rotating assembly. The rotating assembly drives the guide plate 3 to rotate back and forth. Due to inertia, the material falls downward in a parabolic trajectory after leaving the belt conveyor 1. The material falls at the same point, which can easily cause the material to accumulate in one place. Once large pieces of material appear or the downstream process is not transferred in time, the discharge port will be blocked. However, with the addition of the guide plate 3, the material entering the hopper body 2 through the belt conveyor 1 first contacts the guide plate 3. When it hits the guide plate 3, the clumps of material are broken up. As the guide plate 3 rotates back and forth, the material is spread flat under the hopper body 2 under the guidance of the guide plate, thus making it less likely to accumulate.

[0020] like Figure 2 , 3As shown, the rotating assembly of the first embodiment of this utility model includes a first rotating wheel 51, a rotating bracket 52, a first gear 53, a second gear 54, a gear shaft 55, and a first drive motor 56. The first rotating wheel 51 is fixedly connected to the rotating shaft 4, and a plurality of rotating wheel columns 511 are circumferentially arranged on the side away from the hopper body 2. The first drive motor 56 is mounted on the side wall of the hopper body 2, and its output end is connected to the gear shaft 55. The gear shaft 55 is axially connected to the rotating bracket 52, and the rotating bracket 52 is located on the left and right sides of the first rotating wheel 51 respectively. The first gear 53 and the second gear 54 are fixedly connected to the gear shaft 55. The first gear 53 and the second gear 54 have the same structure and are both incomplete gears, and their tooth grooves are... The rotating column 511 meshes with the first drive motor 56, which drives the gear shaft 55 to rotate, thereby driving the two gears to rotate. When the first gear 53 meshes with the rotating column 511 of the first rotating wheel 51, the first gear 53 drives the first rotating wheel 51 to rotate, thereby driving the rotating shaft 4 and the guide plate 3 to rotate. At this time, the second gear 54 is not in contact with the first rotating wheel 51. As the gear shaft 55 rotates, the second gear 54 begins to mesh with the rotating column 511 of the first rotating wheel 51. The second gear 54 drives the first rotating wheel 51 to rotate in the opposite direction, thereby driving the rotating shaft 4 and the guide plate 3 to rotate in the opposite direction. At this time, the first gear 53 is not in contact with the first rotating wheel 51. Thus, the circumferential rotation of the gear shaft 55 is converted into the reciprocating rotation of the guide plate 3.

[0021] like Figure 4 , 5As shown, the rotating assembly of the second embodiment of this utility model includes a second rotating wheel 61, a third gear 62, a fourth gear 63, and a second drive motor 64. The second rotating wheel 61 is fixedly connected to the rotating shaft 4, and its side wall is provided with a plurality of grooves 611 circumferentially. The second drive motor 64 is mounted on the side wall of the hopper body 2 through a bracket, and its output end is connected to the third gear 62. The third gear 62 has a plurality of gear columns 621 on the side away from the hopper body 2. The connecting line of the plurality of gear columns 621 is arc-shaped. The gear columns 621 cooperate with the grooves 611 of the second rotating wheel 61. The fourth gear 63 has the same structure as the third gear 62, and the two mesh with each other. The second drive motor 64 drives the third gear 62. When gear 62 rotates, the third gear 62 drives the fourth gear 63 to rotate. The gear post 621 on the third gear 62 meshes with the groove 611 of the second rotating wheel 61. The third gear 62 drives the second rotating wheel 61 to rotate, thereby driving the rotating shaft 4 and the guide plate 3 to rotate. At this time, the fourth gear 63 is not in contact with the second rotating wheel 61. As the third gear 62 rotates, the gear post 621 of the fourth gear 63 begins to mesh with the groove 611 of the second rotating wheel 61. The fourth gear 63 drives the second rotating wheel 61 to rotate in the opposite direction, thereby driving the rotating shaft 4 and the guide plate 3 to rotate in the opposite direction. At this time, the third gear 62 is not in contact with the second rotating wheel 61. Thus, the circular rotation of the third gear 62 is converted into the reciprocating rotation of the guide plate 3.

[0022] In addition, a sensing rod 7 is fixedly provided on the rotating shaft 4 of this utility model, and a proximity switch 8 is correspondingly provided on the side wall of the hopper body 2. During the rotation of the rotating shaft 4, the sensing rod 7 rotates accordingly, moving closer to or away from the proximity switch 8. If the sensing rod 7 does not move closer to the proximity switch 8 for a predetermined time or the proximity switch 8 continuously detects the sensing rod 7, it indicates that the guide plate 3 has stopped rotating due to malfunction or material blockage. At this time, the belt conveyor 1 and the first drive motor 56 or the second drive motor 64 can be stopped by the intelligent controller to protect the normal operation of the equipment and reduce the occurrence of accidents.

[0023] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this invention.

Claims

1. A hopper for preventing material accumulation in a belt conveyor, comprising a hopper body (2) located at the discharge port of the belt conveyor (1), characterized in that: The hopper body (2) is provided with a guide plate (3). The guide plate (3) is located at the front end of the belt conveyor (1). A rotating shaft (4) is fixedly connected to its center. Both ends of the rotating shaft (4) are movably connected to the side wall of the hopper body (2). One end passes through the hopper body (2) and is connected to a rotating assembly. The rotating assembly drives the guide plate (3) to rotate back and forth.

2. The anti-accumulation hopper for a belt conveyor according to claim 1, characterized in that: The rotating assembly includes a first rotating wheel (51), a rotating bracket (52), a first gear (53), a second gear (54), a gear shaft (55), and a first drive motor (56). The first rotating wheel (51) is fixedly connected to the rotating shaft (4), and multiple rotating wheel columns (511) are arranged circumferentially on the side away from the hopper body (2). The first drive motor (56) is mounted on the side wall of the hopper body (2), and its output end is connected to the gear shaft (55). The gear shaft (55) is axially connected to the rotating bracket (52). The rotating bracket (52) is located on the left and right sides of the first rotating wheel (51). The first gear (53) and the second gear (54) are fixedly connected to the gear shaft (55). The first gear (53) and the second gear (54) have the same structure and are both incomplete gears. Their tooth grooves cooperate with the rotating wheel columns (511). The first gear (53) and the second gear (54) drive the first rotating wheel (51) to rotate back and forth.

3. The anti-accumulation hopper for a belt conveyor according to claim 1, characterized in that: The rotating assembly includes a second rotating wheel (61), a third gear (62), a fourth gear (63), and a second drive motor (64). The second rotating wheel (61) is fixedly connected to the rotating shaft (4), and its side wall is provided with multiple grooves (611) circumferentially. The second drive motor (64) is mounted on the side wall of the hopper body (2), and its output end is connected to the third gear (62). The third gear (62) is provided with multiple gear columns (621) on the side away from the hopper body (2). The connecting line of the multiple gear columns (621) is arc-shaped. The gear columns (621) cooperate with the grooves (611) of the second rotating wheel (61). The fourth gear (63) has the same structure as the third gear (62) and the two mesh with each other. The second rotating wheel (61) is driven to reciprocate through the third gear (62) and the fourth gear (63).

4. The anti-accumulation hopper for a belt conveyor according to claim 2 or 3, characterized in that: A sensing rod (7) is fixedly provided on the rotating shaft (4), and a proximity switch (8) is correspondingly provided on the side wall of the hopper body (2).

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