Ore lifting and conveying device

Abstract

The utility model discloses an ore hoisting and conveying device which comprises a bottom plate, a rack fixedly connected to the upper end of the bottom plate, a PLC (Programmable Logic Controller) fixedly connected to the upper end of the bottom plate and a lifting mechanism arranged at the upper end of the rack. According to the lifting device, the rack composed of the four U-shaped blocks and the limiting mechanism on the lifting box are arranged, a motor of the lifting mechanism drives the take-up roller to rotate, the take-up roller conducts take-up and pay-off on the steel wire rope, the steel wire rope drives the U-shaped plates and the lifting box to ascend and descend, and in the ascending and descending process, rolling wheels of the limiting mechanism are arranged between the two corresponding U-shaped blocks on the different sides in a sliding mode; the U-shaped blocks provide stable sliding rails for the idler wheels, shaking of the lifting box is limited, a traditional suspension arm is replaced with the structure, shaking caused by insufficient rigidity of the suspension arm is avoided, the lifting box and ore in the lifting box can stably ascend, descend and move, and therefore discharging point deviation is reduced, the ore scattering rate is reduced, and material loss and manual cleaning cost are reduced.

Description

Technical Field

[0001] The utility model belongs to the field of conveying devices, and in particular relates to an ore lifting and conveying device. Background Art

[0002] In the export and short-distance transshipment of mine ores, loading ore onto trucks is a key process connecting mining and transportation. The core requirement is to lift the container containing ore stored on the ground to a certain height through a lifting device, and then output it to the cargo box of the truck through a conveying device to realize the transshipment of the ore.

[0003] At present, intermittent loading is usually carried out by using a mobile crane with a grab bucket. When loading ore using this method, although the unloading angle can be adjusted by rotating the grab bucket, it is limited by the insufficient rigidity of the crane arm. When grabbing the ore and rotating, the crane arm will shake, causing the unloading point to shift and the ore scattering rate to be high. This not only causes material loss, but also requires additional manual cleaning of the scattered ore around the truck. When using the ore lifting and conveying device in the existing technology, it is usually difficult to quickly lift the ore carrying box to a certain height and evenly transport the ore in the carrying box to the cargo box of the truck, which needs further improvement. Utility Model Content

[0004] In order to overcome the problems that the boom of the existing mobile crane is prone to shaking when loading ore with a grab bucket, resulting in the displacement of the unloading point and a high ore scattering rate, and the existing ore lifting and conveying device is difficult to quickly lift the ore carrying box to the specified height and evenly transport the ore to the truck cargo box, an ore lifting and conveying device is proposed.

[0005] The technical solution of the utility model is as follows: an ore lifting and conveying device includes a base plate, a frame fixed to the upper end of the base plate, a PLC controller fixed to the upper end of the base plate, and a lifting mechanism arranged at the upper end of the frame, a wire-receiving end of the lifting mechanism is connected to one end of a steel wire rope, the other end of the steel wire rope is connected to a U-shaped plate, and a lifting box is fixed to the lower end of the U-shaped plate;

[0006] A material discharge box is fixedly connected to one side of the frame. The upper end of the material discharge box is open, and the lower end of the material discharge box is penetrated by a first material discharge trough distributed at equal intervals. One side of the material discharge box is tilted downward.

[0007] A moving mechanism is provided on one side of the material box, and a baffle is connected to the moving end of the moving mechanism. The upper end of the baffle is in contact with the lower end of the material box, and a second material trough with equal spacing is opened through the upper end of the baffle. When the baffle moves, the second material trough and the first material trough are interconnected. When the baffle is reset, the second material trough and the first material trough are not connected to each other.

[0008] The frame is composed of four U-shaped blocks. The U-shaped blocks are U-shaped, and the openings of two corresponding U-shaped blocks on different sides are arranged facing each other. The inner walls of the two U-shaped blocks on different sides are fixed with stoppers.

[0009] A slot is formed on the side of the lifting box close to the material box, a movable frame is slidably provided on the inner wall of the slot, an electric cylinder is fixedly connected to the side of the lifting box away from the material box, and the output shaft of the electric cylinder passes through the lifting box and is fixedly connected to the side of the movable frame away from the material box;

[0010] Limiting mechanisms are arranged on both sides of the lifting box, and the limiting mechanisms are slidably arranged between two corresponding U-shaped blocks on different sides.

[0011] Furthermore, the moving mechanism includes a plurality of supporting blocks fixedly connected to both sides of the discharge box, wherein the two supporting blocks on the same side are fixedly connected to a support, the two supports are fixedly connected to a cylinder, the output shaft of the cylinder is fixedly connected to a connecting block, and the side end of the connecting block is fixedly connected to one side of the baffle.

[0012] Furthermore, two limit plates are fixedly connected to one side of the bottom plate, and the distance between the two limit plates is less than five meters.

[0013] Furthermore, the limiting mechanism is composed of a second fixed block fixedly connected to both sides of the lifting box, a rotating column rotatably installed on the inner wall of the second fixed block, and rollers rotatably installed on both ends of the rotating column. Two limiting rings are fixed to the side walls of the rotating column, and the ends of the two limiting rings close to each other are respectively fitted with the two sides of the second fixed block, and the rollers are slidably arranged on the inner walls of both sides of the U-shaped block.

[0014] Furthermore, a dustproof mechanism is provided at the upper end of the lifting box near the edges on both sides. The dustproof mechanism includes a fixed frame fixedly connected to the edges on both sides of the upper end of the lifting box. The ends of the two fixed frames close to each other are respectively fixed to the two sides of the forehead of the U-shaped plate. Two vertical blocks are fixed to the upper end of the fixed frame. The ends of the two vertical blocks close to each other are jointly fixed to the limiting rod. The side wall of the limiting rod is provided with a dustproof plate. When the lower end of the dustproof plate is in contact with the upper end face of the fixed frame, the lower end face of the dustproof plate completely covers the frame-shaped groove on the fixed frame.

[0015] Furthermore, the lifting mechanism includes a supporting frame fixed to the upper end of the frame, a fixed body fixed to the upper end of the supporting frame, a take-up roller rotatably mounted on the inner walls on both sides of the fixed body, and a motor fixed to one side of the fixed body; one end of the wire rope is fixed to the take-up roller, and the output shaft of the motor passes through the fixed body and is fixed to the rotating shaft of the take-up roller.

[0016] Furthermore, both sides of the stopper are fixedly connected to the inner walls of both sides of the U-shaped block respectively. When the upper end of the roller abuts against the lower end of the stopper, the bottom surface of the inner wall of the slot is located above the uppermost end of the discharge box.

[0017] Furthermore, a first fixing block is fixedly connected to one end of the blanking box away from the frame, and a distance measuring sensor is fixedly connected to one end of the first fixing block away from the blanking box.

[0018] Furthermore, at least two reinforcement blocks are fixedly connected between the two U-shaped blocks on the same side.

[0019] Beneficial effects of the utility model:

[0020] 1. By setting a frame consisting of four U-shaped blocks and a limit mechanism on the lifting box, the motor of the lifting mechanism drives the take-up roller to rotate, and the take-up roller retracts and releases the wire rope, and the wire rope drives the U-shaped plate and the lifting box to rise and fall. During the lifting process, the roller of the limit mechanism slides between two corresponding U-shaped blocks on different sides. The U-shaped blocks provide a stable sliding track for the roller, limiting the shaking of the lifting box. This structure replaces the traditional boom, avoiding the shaking caused by insufficient boom rigidity, allowing the lifting box and the ore inside to be lifted and moved stably, thereby reducing the deviation of the unloading point, reducing the ore scattering rate, and reducing material loss and manual cleaning costs.

[0021] 2. By setting up a lifting mechanism, a lifting box, an electric cylinder, a moving frame and a discharge box, the problem that the existing ore lifting and conveying device is difficult to quickly lift the ore carrying box to a specified height can be solved. The lifting mechanism can quickly drive the lifting box up and down by retracting and releasing the wire rope, thereby realizing the rapid lifting of the ore carrying box. When the lifting box reaches the specified height, the output shaft of the electric cylinder retracts and extends, driving the moving frame to slide in the slot of the lifting box. By placing the ore in the lifting box, the moving frame slides to push the ore from the slot to the discharge box, completing the transportation of the ore from the carrying box to the discharge box, which can meet the needs of rapid lifting and transportation;

[0022] 3. The difficulty of evenly distributing ore to the truck bed can be solved by providing a feed box, a moving mechanism, and a baffle. The lower end of the feed box has a first feed chute spaced evenly apart, and the baffle has a second feed chute spaced evenly apart. The cylinder of the moving mechanism drives the connecting block to move, which in turn drives the baffle. When the baffle moves to connect the second feed chute with the first, the ore falls from the feed box through the first and second feed chute to the truck bed. During the movement of the baffle, the degree of overlap between the second feed chute and the first feed chute changes, which can control the amount of ore discharged. The evenly distributed feed chute ensures that the ore falls evenly. At the same time, one side of the feed box is tilted downward to help the ore slide smoothly, achieving even distribution of the ore to the truck bed. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 What is shown is a schematic diagram of the three-dimensional structure of the utility model;

[0024] Figure 2 Shown is a schematic diagram of the three-dimensional structure of the mobile mechanism of the utility model;

[0025] Figure 3 Shown is a schematic diagram of the three-dimensional structure of the baffle of the present invention;

[0026] Figure 4Shown is a schematic diagram of the three-dimensional structure of the lifting box of the present invention;

[0027] Figure 5 Shown is a schematic diagram of the three-dimensional disassembled structure of the dust-proof mechanism of the utility model;

[0028] Figure 6 Shown is a schematic diagram of the three-dimensional structure of the lifting mechanism of the utility model;

[0029] Figure 7 Shown is a schematic diagram of the three-dimensional structure of the U-shaped block of the present invention.

[0030] The marks in the accompanying drawings are: 1. Base plate; 2. Frame; 201. U-shaped block; 202. Baffle; 3. Lifting mechanism; 30. Carrying frame; 31. Fixed body; 32. Take-up roller; 33. Motor; 34. Wire rope; 4. U-shaped plate; 5. Lifting box; 6. Notch; 7. Moving frame; 8. Discharge box; 9. First discharge chute; 10. First fixed block; 11. Distance sensor; 12. Limit plate; 13. PLC controller; 14. Carrying block; 15. Cylinder; 16. Connecting block; 17. Baffle; 18. Second discharge chute; 19. Reinforcement block; 20. Second fixed block; 21. Rotating column; 22. Roller; 23. Limiting ring; 24. Fixed frame; 25. Vertical block; 26. Limit rod; 27. Dustproof plate; 28. Electric cylinder. DETAILED DESCRIPTION

[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0032] Example 1: Please refer to Figure 1-Figure 7 The ore hoisting and conveying device includes an ore hoisting and conveying device, including a base plate 1, a frame 2 fixed to the upper end of the base plate 1, a PLC controller 13 fixed to the upper end of the base plate 1, and a lifting mechanism 3 provided on the upper end of the frame 2, a wire-receiving end of the lifting mechanism 3 is connected to one end of a steel wire rope 34, the other end of the steel wire rope 34 is connected to a U-shaped plate 4, and a lifting box 5 is fixed to the lower end of the U-shaped plate 4;

[0033] A material box 8 is fixed to one side of the frame 2. The upper end of the material box 8 is open, and the lower end of the material box 8 is penetrated by a first material chute 9 distributed evenly. One side of the material box 8 is tilted downward.

[0034] A moving mechanism is provided on one side of the material box 8, and a baffle 17 is connected to the moving end of the moving mechanism. The upper end of the baffle 17 is in contact with the lower end of the material box 8, and the upper end of the baffle 17 is penetrated by a second material chute 18 distributed equidistantly. When the baffle 17 moves, the second material chute 18 and the first material chute 9 are interconnected. When the baffle 17 is reset, the second material chute 18 and the first material chute 9 are not connected to each other.

[0035] The rack 2 is composed of four U-shaped blocks 201. The U-shaped blocks 201 are U-shaped. The openings of two corresponding U-shaped blocks 201 on different sides are arranged facing each other. The inner walls of the two U-shaped blocks 201 on different sides are fixed with stoppers 202.

[0036] A slot 6 is formed on the side of the lifting box 5 close to the blanking box 8. A movable frame 7 is slidably provided on the inner wall of the slot 6. An electric cylinder 28 is fixedly connected to the side of the lifting box 5 away from the blanking box 8. The output shaft of the electric cylinder 28 passes through the lifting box 5 and is fixedly connected to the side of the movable frame 7 away from the blanking box 8.

[0037] Limiting mechanisms are provided on both sides of the lifting box 5 , and the limiting mechanisms are slidably provided between two corresponding U-shaped blocks 201 on different sides.

[0038] When in use, the lifting mechanism 3 is turned on to lift the U-shaped plate 4 upward, so that the lifting box 5 can be lifted upward. After the lifting box 5 reaches the appropriate height, the electric cylinder 28 is turned on to move the moving frame 7 out of the slot 6, and the ore in the moving frame 7 can be pushed into the discharge box 8. The ore falls into the discharge box 8 from the opening at the lower end of the moving frame 7. Since one side of the discharge box 8 is tilted downward, the ore will fall onto the discharge box 8 due to gravity. Then the moving mechanism is turned on to move the baffle 17 so that the second discharge chute 18 and the first discharge chute 9 are interconnected, and the ore will fall into the compartment of the truck below through the first discharge chute 9 and the second discharge chute 18, which solves the problem that the boom of the existing mobile crane is easy to shake when it is equipped with a grab bucket for ore loading, resulting in the displacement of the unloading point and the high ore scattering rate, and the existing ore lifting and conveying device is difficult to quickly lift the ore carrying box to the specified height and evenly transport the ore to the truck cargo box.

[0039] See also Figure 1 and Figure 2 In this embodiment, the moving mechanism includes a plurality of bearing blocks 14 fixedly connected to both sides of the discharge box 8, wherein the two bearing blocks 14 on the same side are fixedly connected to a support, the two supports are fixedly connected to a cylinder 15, the output shaft of the cylinder 15 is fixedly connected to a connecting block 16, and the side end of the connecting block 16 is fixedly connected to one side of the baffle 17. The plurality of bearing blocks 14 provide a stable installation basis for the support, ensuring the firmness of the installation of the cylinder 15. The cylinder 15 serves as a power source and can stably drive the baffle 17 to move through the connecting block 16, thereby realizing the on-off and overlap degree adjustment of the second discharge chute 18 and the first discharge chute 9. The operation is convenient and the power is stable, ensuring that the discharge process is controllable.

[0040] See also Figure 1In this embodiment, two limit plates 12 are fixed to one side of the bottom plate 1. The distance between the two limit plates 12 is less than five meters. The two limit plates 12 can limit the parking position of the truck, so that the truck can be accurately parked at a suitable position below the discharge box 8, avoiding the ore from not falling accurately into the cargo box due to the deviation of the truck parking, which can further reduce the ore scattering rate, and the distance setting is reasonable to meet the parking needs of most trucks.

[0041] See also Figure 1 and Figure 4 In this embodiment, the limiting mechanism is composed of a second fixed block 20 fixed to both sides of the lifting box 5, a rotating column 21 rotatably mounted on the inner wall of the second fixed block 20, and rollers 22 rotatably mounted at both ends of the rotating column 21. Two limiting rings 23 are fixed to the side wall of the rotating column 21, and the ends of the two limiting rings 23 close to each other are respectively in contact with the two sides of the second fixed block 20, and the rollers 22 are slidably arranged on the inner walls of both sides of the U-shaped block 201. The second fixed block 20 provides installation support for the rotating column 21, and the rollers 22 at both ends of the rotating column 21 slide on the inner wall of the U-shaped block 201, reducing the friction force when the lifting box 5 is lifted and lowered, making the lifting smoother. The limiting ring 23 can limit the axial movement of the rotating column 21, ensuring that the rollers 22 always slide stably in the U-shaped block 201, further improving the stability of the lifting box 5.

[0042] See also Figure 1 and Figure 6 In this embodiment, the lifting mechanism 3 includes a carrying frame 30 fixed to the upper end of the frame 2, a fixed body 31 fixed to the upper end of the carrying frame 30, a take-up roller 32 rotatably mounted on the inner walls of both sides of the fixed body 31, and a motor 33 fixed to one side of the fixed body 31. One end of the wire rope 34 is fixed to the take-up roller 32, and the output shaft of the motor 33 passes through the fixed body 31 and is fixed to the rotating shaft of the take-up roller 32. The carrying frame 30 and the fixed body 31 provide a stable installation carrier for the take-up roller 32 and the motor 33. The motor 33 directly drives the take-up roller 32 to rotate, with high transmission efficiency, and can quickly realize the retraction and release of the wire rope 34, thereby driving the lifting box 5 to rise and fall quickly. The power transmission of this structure is relatively stable, which can ensure that the lifting process is controllable and efficient.

[0043] See also Figure 1 、 Figure 4 and Figure 7 In this embodiment, the two sides of the stopper 202 are respectively fixed to the inner walls of the two sides of the U-shaped block 201. When the upper end of the roller 22 is against the lower end of the stopper 202, the bottom surface of the inner wall of the slot 6 is located above the uppermost end of the discharge box 8. The stopper 202 can limit the roller 22 to prevent the lifting box 5 from rising excessively and ensure that the lifting box 5 stays at an appropriate height. At this time, the bottom surface of the inner wall of the slot 6 is located above the uppermost end of the discharge box 8, ensuring that the ore pushed out by the moving frame 7 can accurately fall into the discharge box 8, avoiding the ore from spilling, and improving the conveying efficiency.

[0044] See also Figure 1 In this embodiment, a first fixed block 10 is fixedly connected to one end of the discharge box 8 away from the frame 2, and a distance sensor 11 is fixedly connected to the other end of the first fixed block 10 away from the discharge box 8. The first fixed block 10 provides a stable installation position for the distance sensor 11. The distance sensor 11 can detect the distance between the front of the truck and the discharge box 8 in real time. The distance sensor 11 is electrically connected to the PLC controller 13, which makes it convenient for the operator to know the distance between the front of the truck and the discharge box 8 through the PLC controller 13, thereby facilitating more accurate debugging of the position of the truck relative to the discharge, and is easy to use.

[0045] See also Figure 1 and Figure 3 In this embodiment, at least two reinforcing blocks 19 are fixedly connected between the two U-shaped blocks 201 on the same side. The reinforcing blocks 19 can enhance the connection strength between the two U-shaped blocks 201 on the same side, improve the overall structural stability of the frame 2, and prevent the U-shaped blocks 201 from deforming during the lifting process of the lifting box 5. It can ensure that the roller 22 of the limiting mechanism always slides within the stable track, thereby further reducing the shaking of the lifting box 5.

[0046] Example 2: Please refer to Figure 5 On the basis of Example 1, the present application provides a technical solution: a dustproof mechanism is provided at the upper end of the lifting box 5 near the edges on both sides, and the dustproof mechanism includes a fixed frame 24 fixed to the edges on both sides of the upper end of the lifting box 5, and the ends of the two fixed frames 24 close to each other are respectively fixed to the two sides of the U-shaped plate 4, and the upper end of the fixed frame 24 is fixed with two vertical blocks 25, and the ends of the two vertical blocks 25 close to each other are jointly fixed to the limit rod 26, and the side wall of the limit rod 26 is provided with a dustproof plate 27. When the lower end of the dustproof plate 27 is attached to the fixed frame 24, the dustproof plate 27 is fixed to the fixed frame 24. When the lifting box 5 is lifted up, the lower end face of the dustproof plate 27 completely blocks the frame-shaped groove on the fixed frame 24. The fixed frame 24 and the vertical block 25 provide an installation basis for the limit rod 26 and the dustproof plate 27. The dustproof plate 27 can block the frame-shaped groove on the fixed frame 24 to prevent dust, impurities, etc. from entering the lifting box 5 during lifting, keeping the interior of the lifting box 5 clean. At the same time, the dustproof plate 27 can slide along the limit rod 26, which is convenient for opening or closing the shielding as needed. It is flexible to use. When opened, ore can be put into the movable frame 7 through the frame-shaped groove of the fixed frame 24.

[0047] Working principle: Before use, the truck is parked between two limit plates 12. The distance between the truck and the discharge box 8 is detected by the distance sensor 11 installed on the first fixed block 10 on the discharge box 8. The operator can adjust the device status through the PLC controller 13 according to the detection result;

[0048] During operation, first place the ore into the movable frame 7 in the lifting box 5. If a dustproof mechanism is provided on the upper end of the lifting box 5, the dustproof plate 27 can be slid along the limit rod 26 to open the frame-shaped trough of the fixed frame 24 for feeding. After feeding, the dustproof plate 27 can be slid to cover the frame-shaped trough to prevent dust from entering.

[0049] Then, the lifting mechanism 3 is turned on, the motor 33 drives the take-up roller 32 to rotate, the take-up roller 32 reels the wire rope 34, and the wire rope 34 drives the U-shaped plate 4 and the lifting box 5 to rise;

[0050] During the ascent of the lifting box 5, the rollers 22 of the limiting mechanisms on both sides thereof slide along the inner wall of the U-shaped block 201 of the frame 2, the rotating column 21 rotates within the second fixed block 20, and the limiting ring 23 restricts the axial movement of the rotating column 21. At the same time, the reinforcement blocks 19 between the U-shaped blocks 201 on the same side ensure the stability of the frame 2, ensuring that the lifting box 5 rises stably.

[0051] When the upper end of the roller 22 abuts against the lower end of the stopper 202 on the inner wall of the U-shaped block 201, the lifting box 5 stops rising. At this time, the bottom surface of the inner wall of the notch 6 is located above the uppermost end of the discharge box 8. Then, the electric cylinder 28 is turned on, and its output shaft pushes the moving frame 7 out of the notch 6, pushing the ore in the moving frame 7 into the discharge box 8. After the ore falls into the discharge box 8 from the lower opening of the moving frame 7, it slides downward under the action of gravity because one side of the discharge box 8 is tilted downward.

[0052] After that, the moving mechanism is turned on, and the cylinder 15 drives the baffle 17 to move through the connecting block 16, so that the second discharge chute 18 on the baffle 17 is connected with the first discharge chute 9 at the lower end of the discharge box 8. The ore falls into the truck compartment below through the first discharge chute 9 and the second discharge chute 18;

[0053] By controlling the distance that the cylinder 15 drives the baffle 17 to move, the overlap degree of the second feeding chute 18 and the first feeding chute 9 is adjusted to control the feeding amount;

[0054] When the ore transportation is completed, the output shaft of the electric cylinder 28 contracts and drives the movable frame 7 to return to the lifting box 5. The air cylinder 15 drives the baffle 17 to return to the original position so that the second discharge chute 18 is disconnected from the first discharge chute 9. The motor 33 drives the take-up roller 32 to rotate in the opposite direction to release the wire rope 34. The lifting box 5 descends and returns to its original position, completing an ore lifting and transportation operation.

Claims

1. Ore lifting and conveying device, characterized by: The invention comprises a base plate (1), a frame (2) fixed to the upper end of the base plate (1), a PLC controller (13) fixed to the upper end of the base plate (1), and a lifting mechanism (3) arranged at the upper end of the frame (2); a wire-receiving end of the lifting mechanism (3) is connected to one end of a steel wire rope (34); the other end of the steel wire rope (34) is connected to a U-shaped plate (4); and a lifting box (5) is fixed to the lower end of the U-shaped plate (4); A material discharge box (8) is fixedly connected to one side of the frame (2), the upper end of the material discharge box (8) is open, and the lower end of the material discharge box (8) is penetrated by a first material discharge trough (9) distributed at equal intervals, and one side of the material discharge box (8) is tilted downward; A moving mechanism is provided on one side of the material box (8), and a moving end of the moving mechanism is connected to a baffle (17). The upper end of the baffle (17) is fitted with the lower end of the material box (8). The upper end of the baffle (17) is penetrated by a second material trough (18) distributed at equal intervals. When the baffle (17) moves, the second material trough (18) and the first material trough (9) are interconnected. When the baffle (17) is reset, the second material trough (18) and the first material trough (9) are disconnected from each other. The frame (2) is composed of four U-shaped blocks (201), each of which is U-shaped. The openings of two corresponding U-shaped blocks (201) on different sides are arranged facing each other, and the inner walls of the two U-shaped blocks (201) on different sides are fixed with stoppers (202). A slot (6) is provided on one side of the lifting box (5) close to the material discharge box (8), a movable frame (7) is provided on the inner wall of the slot (6) for sliding, an electric cylinder (28) is fixedly connected to the side of the lifting box (5) away from the material discharge box (8), and an output shaft of the electric cylinder (28) passes through the lifting box (5) and is fixedly connected to the side of the movable frame (7) away from the material discharge box (8); Limiting mechanisms are provided on both sides of the lifting box (5), and the limiting mechanisms are slidably provided between two corresponding U-shaped blocks (201) on different sides.

2. The ore lifting and conveying device according to claim 1, characterized in that: The moving mechanism includes a plurality of bearing blocks (14) fixedly connected to both sides of the discharge box (8), wherein two bearing blocks (14) on the same side are fixedly connected to supports, the two supports are fixedly connected to cylinders (15), the output shaft of the cylinder (15) is fixedly connected to a connecting block (16), and the side end of the connecting block (16) is fixedly connected to one side of the baffle (17).

3. The ore lifting and conveying device according to claim 1, characterized in that: Two limit plates (12) are fixedly connected to one side of the bottom plate (1), and the distance between the two limit plates (12) is less than five meters.

4. The ore lifting and conveying device according to claim 1, characterized in that: The limiting mechanism is composed of a second fixed block (20) fixedly connected to both sides of the lifting box (5), a rotating column (21) rotatably mounted on the inner wall of the second fixed block (20), and rollers (22) rotatably mounted on both ends of the rotating column (21). Two limiting rings (23) are fixedly connected to the side wall of the rotating column (21), and the ends of the two limiting rings (23) close to each other are respectively fitted with the two sides of the second fixed block (20), and the rollers (22) are slidably arranged on the inner walls of both sides of the U-shaped block (201).

5. The ore lifting and conveying device according to claim 1, characterized in that: A dustproof mechanism is provided at both sides of the upper end of the lifting box (5), and the dustproof mechanism includes a fixed frame (24) fixed to both sides of the upper end of the lifting box (5). The ends of the two fixed frames (24) close to each other are fixed to both sides of the forehead of the U-shaped plate (4). The upper end of the fixed frame (24) is fixed with two vertical blocks (25). The ends of the two vertical blocks (25) close to each other are commonly fixed to the limiting rod (26). The side wall of the limiting rod (26) is provided with a dustproof plate (27). When the lower end of the dustproof plate (27) is in contact with the upper end surface of the fixed frame (24), the lower end surface of the dustproof plate (27) completely blocks the frame-shaped groove on the fixed frame (24).

6. The ore hoisting and conveying device according to claim 1, characterized in that: The lifting mechanism (3) comprises a carrying frame (30) fixed to the upper end of the frame (2), a fixed body (31) fixed to the upper end of the carrying frame (30), a take-up roller (32) rotatably mounted on the inner walls of both sides of the fixed body (31), and a motor (33) fixed to one side of the fixed body (31); one end of a steel wire rope (34) is fixed to the take-up roller (32), and an output shaft of the motor (33) passes through the fixed body (31) and is fixed to the rotating shaft of the take-up roller (32).

7. The ore hoisting and conveying device according to claim 1, characterized in that: Both sides of the stopper (202) are fixedly connected to the inner walls of both sides of the U-shaped block (201). When the upper end of the roller (22) abuts against the lower end of the stopper (202), the bottom surface of the inner wall of the notch (6) is located above the uppermost end of the discharge box (8).

8. The ore hoisting and conveying device according to claim 1, characterized in that: A first fixed block (10) is fixedly connected to one end of the material box (8) away from the frame (2), and a distance sensor (11) is fixedly connected to one end of the first fixed block (10) away from the material box (8).

9. The ore lifting and conveying device according to claim 1, characterized in that: At least two reinforcement blocks (19) are fixedly connected between the two U-shaped blocks (201) on the same side.

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