A conveying device for achieving uniform distribution of crushed ore

Abstract

The present invention discloses a conveying device for realizing uniform distribution of crushed ore, belonging to the technical field of ore screening and conveying. The height of the fixed feeding rack increases successively from the inside to the outside. A plurality of lifting feeding racks are movably arranged between adjacent fixed feeding racks. A screen is installed at the top of the innermost fixed feeding rack, and a return chute is arranged on the outer wall of the outermost fixed feeding rack; a support frame is arranged on the outer wall of the fixed feeding rack, and a crushing bin located above the screen is installed on the support frame; an installation frame located below the screen is further arranged at the bottom of the fixed feeding rack, and a conveyor belt is arranged between the installation frames; a plurality of rake teeth facing downward are installed on the cross frame, and a paving plate is movably installed on the side of the cross frame. The present invention can achieve uniform feeding through the feeding nozzle. When the ore falls onto the conveyor belt, a plurality of rake teeth will loosen the ore to avoid accumulation. Then, the adjustable paving plate flattens the ore and makes it evenly distributed on the conveyor belt, which improves the practicability of the design.

Description

Technical Field

[0001] The invention relates to the technical field of ore screening and conveying, in particular to a conveying device for achieving uniform distribution of crushed ore. Background Art

[0002] When mining, the transportation of ore is essential. Ore refers to the valuable mineral blocks mined from the mine. After being processed through multiple steps, the mined ore can be used in various engineering fields. Ore conveyors are equipment used to transport ore from mines, pits, or ore yards to ore processing equipment or ore storage areas. They are commonly used in mines, mining sites, and ore processing plants to efficiently and safely transport large quantities of ore to where it is needed.

[0003] Chinese patent application publication number CN118387568A discloses a belt conveyor for coal mines, comprising a conveying device and a silo, further comprising: a separation silo fixedly mounted at the lower interior of the silo; a fixed column rotatably mounted above the separation silo, with two groups symmetrically arranged at the lower opening of the feed port; paddles, comprising multiple groups fixedly mounted at equal angles to the outer surface of the fixed column, a slide being slidably connected to the upper side of the paddles, and two front and rear cavities being provided within the paddles, each containing a boosting mechanism; and a buffer mechanism, comprising two groups. This application can separate gangue from coal lumps in coal mines, reducing the risk of the conveyor belt being torn by gangue in the coal mine. It can also reduce the impact of coal lumps falling onto the belt surface, thereby increasing the service life of the conveyor belt.

[0004] However, the screening effect of the mining conveyor disclosed above is general. It cannot automatically perform multiple sorting of ore according to actual needs and re-crush and screen the ore that does not meet the needs. In addition, the ore on the conveyor belt is unevenly distributed and lacks a flattening structure. Summary of the Invention

[0005] The purpose of the present invention is to provide a conveying device that can achieve uniform distribution of crushed ore in order to solve the problems that the screening effect of existing mining conveying devices is general, the ore cannot be automatically sorted multiple times according to actual needs, and the ore that does not meet the needs is crushed and screened again, and the ore on the conveyor belt is unevenly distributed and lacks a flattening structure.

[0006] To achieve the above object, the technical solution of the present invention is: a conveying device for realizing uniform distribution of crushed ore, including multiple groups of rectangular fixed feeding frames, the height of the fixed feeding frames increasing successively from the inside to the outside; multiple groups of lifting feeding frames are movably arranged between adjacent fixed feeding frames, a screen is installed on the top of the innermost fixed feeding frame, a return chute is arranged on the outer wall of the outermost fixed feeding frame, and when the lifting feeding frame intermittently lifts, larger ores that do not meet the screen fall into the return chute; a support frame is arranged on the outer wall of the fixed feeding frame, and a crushing bin located above the screen is installed on the support frame; a lifting cavity is formed on the outer wall of the fixed feeding frame, a collecting hopper is movably installed in the lifting cavity, the ores in the return chute are stored in the collecting hopper and finally thrown back into the crushing bin; a mounting frame located below the screen is further arranged at the bottom of the fixed feeding frame, and a conveyor belt is arranged between the mounting frames; a cross frame is fixedly arranged above the mounting frames, multiple groups of rake teeth facing downward are installed on the cross frame, and a paving plate is movably installed on the side of the cross frame.

[0007] As a further scheme of the present invention: a fixed discharging inclined plane facing the outside is arranged on the top of the fixed feeding frame, and a lifting discharging inclined plane facing the outside is arranged on the top of the lifting feeding frame.

[0008] As a further scheme of the present invention: support legs are arranged at the bottom of the fixed feeding frame, a connecting frame is fixedly arranged between the bottoms of the lifting feeding frames, and a lifting cylinder is further arranged between the support legs, and the output end of the lifting cylinder is fixedly connected with the connecting frame.

[0009] As a further scheme of the present invention: symmetric crushing rollers are movably installed in the crushing bin, a feeding port is formed at the top of the crushing bin, a guiding cover is further arranged at the top of the feeding port, and a discharging port is formed at the bottom of the crushing bin.

[0010] As a further scheme of the present invention: a conical discharging bin located below the screen is further installed on the inner wall of the innermost fixed feeding frame, and a discharging nozzle located above the conveyor belt is formed at the bottom of the discharging bin.

[0011] As a further scheme of the present invention: a notch matching the collecting hopper is formed on the return chute, a frustum portion is arranged at the top of the lifting discharging inclined plane of the outermost lifting feeding frame, the frustum portion is located on the side close to the notch, and a control panel is further arranged on the outer wall of the fixed feeding frame.

[0012] As a further solution of the present invention: symmetric lifting motors are further installed at the bottom of the fixed loading rack, and threaded rods located in the lifting cavity are arranged at the output ends of the lifting motors; a lifting frame is movably arranged in the lifting cavity, a swing arm inclined outward is arranged at the top of the lifting frame, a swing seat is arranged inside the collecting hopper, and the collecting hopper is movably arranged on the swing arm through the swing seat; the lifting frame is threadedly installed on the threaded rod.

[0013] As a further solution of the present invention: an inclined mounting plate is arranged on the outer wall of the lifting frame, a blanking cylinder is installed on the mounting plate, and the output end of the blanking cylinder abuts against the collecting hopper; suspensions are fixedly arranged on both sides of the lifting frame, and a baffle for shielding the return material chute is arranged outside the suspensions.

[0014] As a further solution of the present invention: a cleaning roller is further installed between the mounting frames, the cleaning roller is located below the conveyor belt and abuts against it, and a material taking port is further opened on the outer wall of the mounting frame.

[0015] As a further solution of the present invention: an inclined sliding seat is fixedly arranged on the outer wall of the cross frame, symmetric sliding grooves are opened at the top of the sliding seat, sliding blocks matched with the sliding grooves are arranged at the bottom of the paving plate, and multiple groups of positioning bolts are threadedly installed on the outer wall of the paving plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention can fully crush the original ore through the crushing bin, and the crushed ore falls onto the sieve mesh below. Since the middle of the sieve mesh is slightly higher than the edge part, the ore with a diameter smaller than the pores on the sieve mesh falls into the lower blanking bin, and the larger ore falls onto the innermost lifting blanking inclined surface and the fixed blanking inclined surface. When the lifting loading rack intermittently lifts, the ore is lifted upward in sequence and falls into the return material chute. Since the return material chute is inclined, the ore falls into the collecting hopper along the notch. When it needs to be crushed again, the lifting frame is driven upward by the lifting motor. At this time, the baffle plates on both sides shield the notch to prevent the ore from continuing to fall, and the blanking cylinder is started to re - input the ore into the guiding cover. This design improves the stability and working efficiency of the conveying device for realizing uniform distribution of crushed ore.

[0018] 2. The present invention can achieve uniform blanking through the blanking nozzle. When the ore falls onto the conveyor belt, multiple groups of rake teeth will loosen the ore and prevent it from piling up. Then, the adjustable paving plate flattens the ore and makes it evenly distributed on the conveyor belt. This design improves the practicability of the conveying device for realizing uniform distribution of crushed ore. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further explained below in conjunction with the accompanying drawings and embodiments:

[0020] Figure 1 is a three-dimensional structure diagram of the present invention;

[0021] Figure 2 is a three-dimensional structure diagram of the fixed loading rack and the lifting loading rack in the present invention;

[0022] Figure 3 is a cross-sectional view of the present invention;

[0023] Figure 4 is a three-dimensional structure diagram of the crushing bin in the present invention;

[0024] Figure 5 is a three-dimensional structure diagram of the lifting loading rack in the present invention;

[0025] Figure 6 is a three-dimensional structure diagram of the collection hopper in the present invention;

[0026] Figure 7 is a cross-sectional view of the mounting rack in the present invention;

[0027] Figure 8 is a three-dimensional structure diagram of the laying plate in the present invention.

[0028] Explanation of reference numerals:

[0029] 1, fixed loading rack; 2, lifting loading rack; 3, fixed unloading inclined plane; 4, lifting unloading inclined plane; 5, support leg; 6, connecting frame; 7, lifting cylinder; 8, support frame; 9, crushing bin; 10, crushing roller; 11, feed inlet; 12, discharge outlet; 13, sieve mesh; 14, blanking bin; 15, blanking nozzle; 16, control panel; 17, material guiding cover; 18, return material trough; 19, notch; 20, frustum part; 21, lifting cavity; 22, lifting motor; 23, threaded rod; 24, lifting frame; 25, swing arm; 26, collection hopper; 27, swing seat; 28, mounting plate; 29, blanking cylinder; 30, suspension; 31, baffle plate; 32, mounting rack; 33, conveyor belt; 34, material taking port; 35, cleaning roller; 36, cross frame; 37, rake teeth; 38, sliding seat; 39, sliding groove; 40, laying plate; 41, slider; 42, positioning bolt. Specific embodiments

[0030] The following will combine the attached Figures 1 to 8 The technical solutions of the present invention will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0031] The present invention provides a conveying device for realizing uniform distribution of crushed ore by improvement, as Figures 1 - 8 shown, including multiple groups of rectangular fixed feeding frames 1, the height of the fixed feeding frames 1 increasing successively from the inside to the outside; multiple groups of lifting feeding frames 2 are movably arranged between adjacent fixed feeding frames 1, a screen 13 is installed at the top of the innermost fixed feeding frame 1, and a return chute 18 is arranged on the outer wall of the outermost fixed feeding frame 1. When the lifting feeding frames 2 intermittently lift, the larger ores that do not meet the screen 13 fall into the return chute 18; a support frame 8 is arranged on the outer wall of the fixed feeding frame 1, and a crushing bin 9 located above the screen 13 is installed on the support frame 8; a lifting cavity 21 is formed on the outer wall of the fixed feeding frame 1, a collecting hopper 26 is movably installed in the lifting cavity 21, the ores in the return chute 18 are stored in the collecting hopper 26 and finally thrown back into the crushing bin 9; a mounting frame 32 located below the screen 13 is further arranged at the bottom of the fixed feeding frame 1, and a conveyor belt 33 is arranged between the mounting frames 32; a cross frame 36 is fixedly arranged above the mounting frame 32, multiple groups of rake teeth 37 facing downward are installed on the cross frame 36, and a leveling plate 40 is movably installed on the side of the cross frame 36.

[0032] In this embodiment: The conveying device for realizing uniform distribution of crushed ore is mainly divided into three parts: the crushing bin 9, the collecting hopper 26 and the conveyor belt 33 structure. When the device is in use, first, the original ore is added into the crushing bin 9. The crushed ore falls onto the lower screen 13. Since the middle part of the screen 13 is slightly higher than the edge part, the ores with diameters smaller than the pores of the screen 13 fall into the lower bin 14 at the bottom and fall onto the conveyor belt 33 through the discharging nozzle 15. When the crushed ore falls onto the conveyor belt 33, multiple groups of rake teeth 37 will loosen the ore and prevent it from piling up together, and then the adjustable leveling plate 40 flattens the ore and makes it evenly distributed on the conveyor belt 33. The larger ores fall along the screen 13 and the innermost fixed discharging inclined plane 3 onto the innermost lifting discharging inclined plane 4. When the lifting feeding frames 2 intermittently lift, the ores fall along the middle fixed discharging inclined plane 3 onto the outermost lifting discharging inclined plane 4. When the outermost lifting discharging inclined plane 4 lifts upward, the ores fall along the outermost fixed discharging inclined plane 3 into the return chute 18. Since the return chute 18 is inclined, the ores fall into the collecting hopper 26 along the notch 19. When it is necessary to crush it again, the lifting motor 22 drives the lifting frame 24 upward. At this time, the baffle plates 31 on both sides block the notch 19 to prevent the ore from continuing to fall, and the discharging cylinder 29 is started to re-inject the ore into the crushing bin 9 for re-crushing.

[0033] Refer to the attached Figure 1 and the attached Figure 3, a fixed discharging inclined plane 3 facing outward is arranged at the top of the fixed loading rack 1, and a lifting discharging inclined plane 4 facing outward is arranged at the top of the lifting loading rack 2.

[0034] In this embodiment: The ore sorted by the screen 13 falls onto the innermost lifting discharging inclined plane 4 along the screen 13 and the innermost fixed discharging inclined plane 3. When the innermost lifting discharging inclined plane 4 is lifted upward, the ore falls onto the outermost lifting discharging inclined plane 4 along the middle fixed discharging inclined plane 3. When the outermost lifting discharging inclined plane 4 is lifted upward, the ore falls into the return chute 18 along the outermost fixed discharging inclined plane 3.

[0035] Refer to the appendix Figure 2 - appendix Figure 3 , support legs 5 are arranged at the bottom of the fixed loading rack 1, a connecting frame 6 is fixedly arranged between the bottoms of the lifting loading racks 2, and a lifting cylinder 7 is also arranged between the support legs 5. The output end of the lifting cylinder 7 is fixedly connected to the connecting frame 6.

[0036] In this embodiment: In order to drive the lifting loading rack 2 to lift automatically and intermittently, so as to realize the automatic feeding of the ore, the output end of the lifting cylinder 7 is fixedly connected to the lifting loading rack 2.

[0037] Refer to the appendix Figure 1 and appendix Figure 4 , symmetric crushing rollers 10 are movably installed in the crushing bin 9. A feed inlet 11 is opened at the top of the crushing bin 9, a material guiding cover 17 is also arranged at the top of the feed inlet 11, and a discharge outlet 12 is opened at the bottom of the crushing bin 9.

[0038] In this embodiment: When adding ore raw materials to the crushing bin 9 or when the collecting hopper 26 throws and crushes larger ore into the crushing bin 9, in order to make it automatically fall into the feed inlet 11, the structure of the material guiding cover 17 is designed.

[0039] Refer to the appendix Figure 2 - appendix Figure 3 , a conical discharging bin 14 is also installed on the inner wall of the innermost fixed loading rack 1 below the screen 13, and a discharging nozzle 15 located above the conveyor belt 33 is opened at the bottom of the discharging bin 14.

[0040] In this embodiment: When the ore is screened, in order to temporarily store it and realize uniform discharging, the structure of the discharging bin 14 is designed, so as to prevent the ore from directly falling onto the conveyor belt 33 after passing through the screen 13, which is not conducive to the uniform distribution of the ore.

[0041] Refer to the appendix Figure 1 - appendix Figure 2, a notch 19 is formed on the return material chute 18 and is matched with the collecting hopper 26. A conical platform portion 20 is provided at the top of the lifting and feeding inclined surface 4 of the outermost lifting and feeding rack 2. The conical platform portion 20 is located on the side close to the notch 19. A control panel 16 is further provided on the outer wall of the fixed feeding rack 1.

[0042] In this embodiment: the ore is successively lifted upward along the fixed feeding rack 1 and the lifting and feeding rack 2. In order to prevent the ore from continuing to be fed outward through the notch 19 during the throwing operation of the collecting hopper 26, the conical platform portion 20 structure is designed. When the ore reaches the conical platform portion 20, it automatically rolls to both sides under the action of gravity, so it will not interfere with the throwing operation. In order to control the operation of the equipment, the control panel 16 structure is designed.

[0043] Refer to the appendix Figure 2 and the appendix Figure 6 , symmetric lifting motors 22 are further installed at the bottom of the fixed feeding rack 1. The output end of the lifting motor 22 is provided with a threaded rod 23 located in the lifting cavity 21; a lifting frame 24 is movably arranged in the lifting cavity 21. The top of the lifting frame 24 is provided with a swing arm 25 inclined outward. A swing seat 27 is arranged inside the collecting hopper 26. The collecting hopper 26 is movably arranged on the swing arm 25 through the swing seat 27; the lifting frame 24 is threadedly installed on the threaded rod 23.

[0044] In this embodiment: the inner side of the collecting hopper 26 abuts against the outer wall of the fixed feeding rack 1. In order to drive the lifting frame 24 and the collecting hopper 26 to lift and fall synchronously, the lifting motor 22 structure is designed.

[0045] Refer to the appendix Figure 1 and the appendix Figure 6 , an inclined mounting plate 28 is provided on the outer wall of the lifting frame 24. A blanking cylinder 29 is installed on the mounting plate 28. The output end of the blanking cylinder 29 abuts against the collecting hopper 26; suspension frames or brackets 30 are fixedly arranged on both sides of the lifting frame 24. A baffle plate 31 for shielding the return material chute 18 is arranged outside the suspension frames or brackets 30.

[0046] In this embodiment: the mounting plate 28 is inclined downward. When the blanking cylinder 29 is started, the blanking cylinder 29 will jack up the collecting hopper 26 upward, and the larger ore stored in the collecting hopper 26 is thrown back into the guide material cover 17 again. Since the return material chute 18 is inclined, when the collecting hopper 26 is lifted and thrown upward, in order to prevent the ore from continuing to fall into the collecting hopper 26 along the return material chute 18, the baffle plate 31 structure is designed. After the throwing is completed, the blanking cylinder 29 is closed and the collecting hopper 26 and the lifting frame 24 are driven to move downward. When the baffle plate 31 disengages from the notch 19, the ore temporarily stored in the return material chute 18 falls into the collecting hopper 26 again.

[0047] Refer to the appendix Figure 7, a cleaning roller 35 is also installed between the mounting brackets 32. The cleaning roller 35 is located below the conveyor belt 33 and abuts against it. A material taking port 34 is also formed on the outer wall of the mounting bracket 32.

[0048] In this embodiment: After the conveyor belt 33 conveys the ore, there will be residual slag on its surface. In order to clean it and ensure the smooth progress of subsequent operations, the cleaning roller 35 structure is designed.

[0049] Refer to the appendix Figure 1 and the appendix Figure 7 - appendix Figure 8 , an inclined sliding seat 38 is fixedly arranged on the outer wall of the cross frame 36. Symmetric sliding grooves 39 are formed at the top of the sliding seat 38. Sliders 41 that cooperate with the sliding grooves 39 are arranged at the bottom of the flat laying plate 40. Multiple groups of positioning bolts 42 are also threadedly installed on the outer wall of the flat laying plate 40.

[0050] In this embodiment: In order to flatten the ore on the conveyor belt 33 and adjust the thickness of the ore according to actual needs, the adjustable flat laying plate 40 is designed. When the flat laying plate 40 slides along the sliding seat 38, in order to fix it, the multiple groups of positioning bolt 42 structure is designed.

[0051] The working principle of the present invention: When the device is in use, first, the original ore is added into the crushing bin 9. The crushed ore falls onto the lower sieve mesh 13. Since the middle part of the sieve mesh 13 is slightly higher than the edge part, the ore with a diameter smaller than the pores of the sieve mesh 13 falls into the lower material bin 14 at the bottom and falls onto the conveyor belt 33 through the material discharging nozzle 15. When the crushed ore falls onto the conveyor belt 33, multiple groups of rake teeth 37 will rake the ore loose and prevent it from piling up. Then, the adjustable flat laying plate 40 flattens the ore and makes it evenly distributed on the conveyor belt 33. The larger ore falls along the sieve mesh 13 and the innermost fixed material discharging inclined plane 3 onto the innermost lifting material discharging inclined plane 4. When the lifting feeding frame 2 intermittently lifts, the ore falls along the middle fixed material discharging inclined plane 3 onto the outermost lifting material discharging inclined plane 4. When the outermost lifting material discharging inclined plane 4 lifts upward, the ore falls along the outermost fixed material discharging inclined plane 3 into the return material groove 18. Since the return material groove 18 is inclined, the ore falls into the collecting hopper 26 along the notch 19. When it is necessary to crush it again, the lifting motor 22 drives the lifting frame 24 upward. At this time, the two side baffle plates 31 block the notch 19 to prevent the ore from continuing to fall, and the material discharging cylinder 29 is started to re-inject the ore into the crushing bin 9 for re-crushing.

[0052] The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A conveying device for realizing uniform distribution of crushed ore, comprising multiple groups of rectangular fixed feeding frames (1), characterized in that: The height of the fixed loading rack (1) increases successively from the inner side to the outer side; a plurality of lifting loading racks (2) are movably arranged between adjacent fixed loading racks (1), a screen (13) is installed at the top of the innermost fixed loading rack (1), a return material chute (18) is arranged on the outer wall of the outermost fixed loading rack (1), and when the lifting loading rack (2) intermittently lifts, larger ores that do not meet the screen (13) fall into the return material chute (18). A support frame (8) is arranged on the outer wall of the fixed loading rack (1), and a crushing bin (9) located above the screen (13) is installed on the support frame (8); a lifting cavity (21) is formed on the outer wall of the fixed loading rack (1), a collecting hopper (26) is movably installed in the lifting cavity (21), the ores in the return material chute (18) are stored in the collecting hopper (26) and finally thrown back into the crushing bin (9). The bottom of the fixed loading rack (1) is further provided with a mounting frame (32) located below the screen (13), and a conveyor belt (33) is arranged between the mounting frames (32); a cross frame (36) is fixedly arranged above the mounting frame (32), and a plurality of rake teeth (37) facing downward are installed on the cross frame (36), and a laying plate (40) is movably installed on the side of the cross frame (36). A lifting frame (24) is movably arranged in the lifting cavity (21), suspension frames (30) are fixedly arranged on both sides of the lifting frame (24), and a baffle plate (31) for shielding the return material chute (18) is arranged outside the suspension frames (30).

2. The conveying device for achieving uniform distribution of crushed ore according to claim 1, wherein: The top of the fixed loading rack (1) is provided with a fixed downward-sloping surface (3) facing the outer side, and the top of the lifting loading rack (2) is provided with a lifting downward-sloping surface (4) facing the outer side.

3. The conveying device for achieving uniform distribution of crushed ore according to claim 1, characterized in that: The bottom of the fixed loading rack (1) is provided with support legs (5), a connecting frame (6) is fixedly arranged between the bottoms of the lifting loading racks (2), and a lifting cylinder (7) is further arranged between the support legs (5), and the output end of the lifting cylinder (7) is fixedly connected with the connecting frame (6).

4. A conveying device for realizing uniform distribution of crushed ore according to claim 1, characterized in that: Symmetric crushing rollers (10) are movably installed in the crushing bin (9), a feed inlet (11) is formed at the top of the crushing bin (9), a material guiding cover (17) is further arranged at the top of the feed inlet (11), and a discharge outlet (12) is formed at the bottom of the crushing bin (9).

5. A conveying device for achieving uniform distribution of crushed ore according to any one of claims 1-4, characterized in that: A conical feeding bin (14) located below the screen (13) is further installed on the inner wall of the innermost fixed loading rack (1), and a feeding nozzle (15) located above the conveyor belt (33) is formed at the bottom of the feeding bin (14).

6. The conveying device for realizing uniform distribution of crushed ore according to claim 1, characterized in that: A notch (19) matching with the collecting hopper (26) is formed on the return material chute (18), a frustum part (20) is arranged at the top of the lifting downward-sloping surface (4) of the outermost lifting loading rack (2), the frustum part (20) is located on the side close to the notch (19), and a control panel (16) is further arranged on the outer wall of the fixed loading rack (1).

7. A conveying device for achieving uniform distribution of crushed ore according to claim 1, characterized in that: A pair of symmetric lifting motors (22) are also installed at the bottom of the fixed loading rack (1). The output end of the lifting motor (22) is provided with a threaded rod (23) located in the lifting cavity (21). The top of the lifting frame (24) is provided with a swing arm (25) inclined outward. The inner side of the collecting hopper (26) is provided with a swing seat (27). The collecting hopper (26) is movably arranged on the swing arm (25) through the swing seat (27). The lifting frame (24) is threadedly installed on the threaded rod (23).

8. A conveying device for achieving uniform distribution of crushed ore according to claim 7, characterized in that: An inclined mounting plate (28) is arranged on the outer wall of the lifting frame (24). A blanking cylinder (29) is installed on the mounting plate (28). The output end of the blanking cylinder (29) abuts against the collecting hopper (26).

9. A conveying device for achieving uniform distribution of crushed ore according to any one of claims 1-4, characterized in that: A cleaning roller (35) is also installed between the mounting frames (32). The cleaning roller (35) is located below the conveyor belt (33) and abuts against it. A material taking port (34) is also opened on the outer wall of the mounting frame (32).

10. A conveying device for achieving uniform distribution of crushed ore according to any one of claims 1-4, characterized in that: An inclined sliding seat (38) is fixedly arranged on the outer wall of the cross frame (36). Symmetric sliding grooves (39) are opened at the top of the sliding seat (38). Sliders (41) matching the sliding grooves (39) are arranged at the bottom of the flat laying plate (40). Multiple groups of positioning bolts (42) are also threadedly installed on the outer wall of the flat laying plate (40).

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