A conveyor for the extraction of iron ore

Abstract

The application relates to the technical field of iron ore mining and transportation, and relates to a conveying device for mining iron ore, which comprises a main guide rail, a first guide wheel rotatably connected to the main guide rail, a conveying frame connected to a conveying mechanism, a hopper rotatably connected to the bottom end of the conveying frame, a self-inclination mechanism connected to the hopper, a knocking and discharging mechanism arranged on a main support, and a cleaning mechanism arranged on the main support; the lower support and the conveying frame are connected with a lower guide rail and a main guide rail respectively to serve as a supporting structure of the hopper, the discharging process of the ore can be automatically completed along a conveying path, the device is automatically reset after the discharging is completed, the device does not need to be stopped, and the conveying efficiency is improved; the cleaning mechanism and the conveying mechanism are connected through a transmission mechanism, the rotating treatment mechanism is kept consistent with the conveying line speed of the hopper, the rotating treatment mechanism can scrape off the sticky ore and impurities in the hopper, and the impurities are prevented from sticking to and corroding the inner lining of the hopper for a long time.

Description

Technical Field

[0001] This invention belongs to the field of iron ore conveying technology, specifically relating to a conveying device for mining iron ore. Background Technology

[0002] In mining, the transportation link is crucial in determining overall efficiency and cost. Iron ore areas are often located in mountainous, hilly, forested, or river-crossing and ravine-crossing areas. Constructing ground roads requires extensive earthwork, including quarrying and bridge building, which is extremely costly and causes significant environmental damage. Using suspended transport structures to transport iron ore has unique advantages in complex terrain. Existing mining conveying devices can basically meet daily needs, but the conveying process requires stopping and tilting at the unloading point, affecting conveying efficiency. Adding a tilting structure to the hopper would increase additional costs. At the same time, the complex environment during ore mining causes minerals to easily mix with impurities, which adhere to the inner wall of the hopper. Long-term adhesion not only affects the hopper's load-bearing capacity but also corrodes the hopper's lining. Therefore, designing a conveying device for iron ore mining is essential. Summary of the Invention

[0003] The purpose of this invention is to provide a conveying device for mining iron ore that is simple in structure and reasonably designed in order to solve the above-mentioned problems.

[0004] The present invention achieves the above objectives through the following technical solutions:

[0005] A conveying device for mining iron ore includes a main rail, on which a first guide wheel is rotatably connected, the first guide wheel is rotatably connected to a conveying frame, the conveying frame is connected to a conveying mechanism, a hopper is rotatably connected to the bottom end of the conveying frame, a lever is provided on one side of the conveying frame, the hopper is connected to a self-tilting mechanism, the main rail is fixed to a main support, a hammering feeding mechanism is provided on the main support, and a cleaning mechanism is provided on the main support.

[0006] The cleaning mechanism includes an upper support fixed on a main guide rail, an upper guide rail on the upper support, support beams symmetrically arranged on the upper guide rail, a lower guide rail fixedly connected to the upper guide rail, an upper sprocket rotatably connected to the support beam, an upper chain belt wound around the upper sprocket, the upper chain belt connected to a transmission mechanism, the transmission mechanism connected to a conveying mechanism, connecting blocks symmetrically arranged on the upper chain belt, support columns slidably connected to the connecting blocks, and a rotating processing mechanism at the bottom of the support columns.

[0007] As a further optimization of the present invention, the rotating processing mechanism includes a support plate rotatably connected to the bottom end of the support column, a toothed ring fixedly connected to the top of the support plate, a support rod rotatably connected to the support plate, a cleaning roller provided on the support rod, a transmission gear fixedly connected to the top end of the support rod, the transmission gear meshing with a central gear, and the central gear fixed on the support column.

[0008] As a further optimization of the present invention, the gear ring meshes with the motor gear, the motor gear is fixedly connected to the output end of the gear motor, the gear motor is embedded in the closed shell, the closed shell is fixed on the guide frame, the guide frame is fixed on the support column, and a second guide wheel is provided on the guide frame, the second guide wheel is tumbling connected in the upper guide rail.

[0009] As a further optimization of the present invention, the self-tilting mechanism includes a lower guide rail fixed on the main support, a tilting guide rail and a tilting guide rail connected on the lower guide rail, a lower support provided on the lower guide rail, and the lower support connected to the hopper.

[0010] As a further optimization of the present invention, the conveying mechanism includes a transmission wheel rotatably connected to the main support, a conveyor belt tensioned on the transmission wheel, connectors evenly arranged on the conveyor belt, the connectors being fixed to the conveyor frame, a conveying motor being fixedly connected to the top of the main support, and the output end of the conveying motor being fixedly connected to one of the transmission wheels.

[0011] As a further optimization of the present invention, the transmission mechanism includes a transmission sprocket wound around an upper chain belt, the transmission sprocket being fixed on a transmission rod, the transmission rod being rotatably connected to a support beam, and a first roller being fixedly connected to the bottom end of the transmission rod, a transmission belt being wound around the first roller, the transmission belt being wound around a second roller, and the second roller being fixed on one of the transmission wheels.

[0012] As a further optimization of the present invention, the hammering feeding mechanism includes a mounting frame fixed to one side of the main support, and fixing sleeves are evenly arranged on the mounting frame.

[0013] As a further optimization of the present invention, a rotating sleeve is rotatably connected to the fixed sleeve, an outer support rod is provided on the outer wall of the rotating sleeve, one end of the torsion spring is fixedly connected to the fixed sleeve, and the other end of the torsion spring is fixed to the rotating sleeve.

[0014] As a further optimization of the present invention, a high-pressure spring is provided on the side wall of the rotating sleeve, and a striking hammer is fixed to one end of the high-pressure spring.

[0015] The beneficial effects of this invention are as follows:

[0016] 1. This invention uses a lower support and a conveyor frame connected to a lower guide rail and a main guide rail, respectively, as the support structure for the hopper. When the lower support detaches from the lower guide rail and slides into the tilting guide rail, the lower support will lift the bottom of the hopper along the path of the tilting guide rail, thereby causing the entire hopper to tilt and dump the ore in the hopper to the discharge position to complete the ore mining and transportation. The ore discharge process can be completed automatically along the conveying path. After the discharge is completed, the hopper will automatically reset without stopping the machine, thus improving the conveying efficiency.

[0017] 2. When the material is tilted and discharged, the actuating rod on the conveyor frame will contact the outer support rod on the rotating sleeve during the movement. After the actuating rod is separated from the outer support rod, the torsion spring releases elastic potential energy and drives the hammer to strike the hopper through the high-pressure spring, causing the ore accumulated in the hopper to fall down with the tilt of the hopper. No additional vibration source is required, which reduces the investment cost of the equipment.

[0018] 3. The present invention connects the cleaning mechanism and the conveying mechanism through a transmission mechanism, so that the conveying linear speed of the rotating processing mechanism and the hopper is consistent. During the movement of the hopper, the rotating processing mechanism can gradually enter and move away from the hopper along the downward guide rail. In conjunction with the rotating cleaning roller, it scrapes off the minerals and impurities adhering to the hopper, avoiding the adhering minerals from affecting the upper limit of the hopper's load capacity, and at the same time preventing impurities from adhering for a long time and corroding the hopper's inner lining. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 yes Figure 1 A magnified view of a portion of region A in the middle;

[0021] Figure 3 This is a schematic diagram showing the position of the flipping guide rail in this invention;

[0022] Figure 4 This is a three-dimensional diagram of part of the structure of this invention;

[0023] Figure 5 This is a three-dimensional diagram of a partial structure of the present invention;

[0024] Figure 6 This is a schematic diagram of the position of the lower support in this invention.

[0025] In the diagram: 1. Main guide rail; 2. Conveyor frame; 3. Conveying mechanism; 4. Hopper; 5. Self-tilting mechanism; 6. Main support; 7. Striking discharge mechanism; 8. Cleaning mechanism; 9. Actuating lever; 10. First guide wheel; 31. Transmission wheel; 32. Conveyor belt; 33. Connector; 34. Conveyor motor; 51. Lower guide rail; 52. Tilting guide rail; 53. Tilting guide rail; 54. Lower support; 71. Mounting bracket; 72. Fixed sleeve; 73. Rotating sleeve; 74. Torsion spring; 75. High-pressure spring; 76. Striking hammer; 81. Upper support; 82. 83. Upper guide rail; 84. Support beam; 85. Upper sprocket; 86. Upper chain belt; 87. Connecting block; 88. Support column; 89. Rotary processing mechanism; 80. Lower guide rail; 81. Central gear; 82. Support plate; 83. Gear ring; 84. Transmission gear; 85. Support rod; 86. Cleaning roller; 87. Motor gear; 888. Enclosed shell; 89. Guide frame; 80. Second guide wheel; 81. Transmission sprocket; 82. Transmission rod; 83. First roller; 84. Transmission belt; 85. Second roller. Detailed Implementation

[0026] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0027] Example: Please refer to Figure 1-6 A conveying device for mining iron ore includes a main guide rail 1, which is fixed on a main support 6. First guide wheels 10 are rotatably connected to grooves on both sides of the main guide rail 1. The first guide wheels 10 are rotatably connected to a conveying frame 2 via bearings. The conveying frame 2 is connected to a conveying mechanism 3, which can drive the conveying frame 2 to run along the main guide rail 1. A hopper 4 is rotatably connected to the bottom of the conveying frame 2. The hopper 4 is used to hold the mined iron ore. The hopper 4 is connected to a self-tilting mechanism 5. As the hopper 4 moves along the main guide rail 1, it can automatically tilt and discharge the ore in conjunction with the self-tilting mechanism 5. A lever 9 is provided on one side of the conveying frame 2, and a knocking discharge mechanism 7 is provided on the main support 6. As the conveying frame 2 moves along the main guide rail 1, the lever 9 can drive the knocking discharge mechanism 7 to run, knocking the hopper 4 to prevent ore residue from remaining in the hopper 4. A cleaning mechanism 8 is provided on the main support 6 for cleaning the hopper 4.

[0028] Please see Figure 1-6The conveying mechanism 3 includes a transmission wheel 31 rotatably connected to the main support 6. A conveyor belt 32 is tensioned on the transmission wheel 31. Multiple connectors 33 are arranged at equal intervals on the conveyor belt 32. The connectors 33 are fixedly connected to the conveyor frame 2. A conveyor motor 34 is fixedly connected to the top of the main support 6. The output end of the conveyor motor 34 is fixedly connected to one of the transmission wheels 31. The conveyor motor 34 drives the transmission wheel 31 to rotate. The conveyor frame 2 and the hopper 4 connected by the connectors 33 can be moved along the main guide rail 1 by the conveyor belt 32. The self-tilting mechanism 5 includes a lower guide rail 51 fixed to the main support 6. A tilting guide rail 52 and a tilting guide rail 53 are connected to the lower guide rail 51. A lower support 54 is provided on the lower guide rail 51. The lower support 54 is connected to the guide groove opened on the outer side of the lower guide rail 51 by rollers. One end of the lower support 54 is fixedly connected to the hopper 4. The tilting guide rail 52 and the tilting guide rail 53 are provided with openings that connect with the lower guide rail. A guide groove corresponding to the slide is opened on the outside of 51; the position of the flipping guide rail 52 corresponds to the ore feeding part, and the position of the tilting guide rail 53 is located before the ore feeding part, used to dump the residue processed by the cleaning mechanism 8. The top of the hopper 4 is connected to the main guide rail 1 through the conveyor frame 2. The main guide rail 1 provides a horizontal movement path for the top of the hopper 4. The bottom of one side of the hopper 4 is connected to the lower guide rail 51 through the lower support 54. When the hopper 4 is in the feeding position, the entire hopper 4 is in a vertical state due to the limitation of the lower guide rail 51 and the main guide rail 1. The mined iron ore is put into the top of the hopper 4 and moves along the main guide rail 1 to the ore feeding part. At this time, the lower support 54 will disengage from the lower guide rail 51 and slide into the flipping guide rail 52. Along the path of the flipping guide rail 52, the lower support 54 drives the bottom of the hopper 4 to lift up, thereby causing the entire hopper 4 to flip and dump the ore in the hopper 4 to the feeding part to complete the mining and transportation of the ore.

[0029] Please see Figure 3 and Figure 5The impact feeding mechanism 7 includes a mounting frame 71 fixed to one side of the main support 6. Fixed sleeves 72 are evenly fixed on the mounting frame 71. A rotating sleeve 73 is rotatably connected to the fixed sleeve 72. A torsion spring 74 is fixedly connected to the fixed sleeve 72, with one end of the torsion spring 74 fixed to the rotating sleeve 73. An outer support rod is provided on the outer wall of the rotating sleeve 73, and a high-pressure spring 75 is provided on the side wall of the rotating sleeve 73. A striking hammer 76 for impacting the hopper 4 is fixed to one end of the high-pressure spring 75. When the rotating sleeve 73 rotates relative to the fixed sleeve 72, it impacts the torsion spring. The elastic potential energy accumulated on 74 will be released when the elastic potential energy is released and the rotating sleeve 73 will rotate and reset. After the lower support 54 connected to the hopper 4 is flipped under the limiting action of the flipping guide rail 52, it will continue to move along the main guide rail 1 with the conveyor frame 2. During the movement, the actuating rod 9 on the conveyor frame 2 will contact the outer support rod on the rotating sleeve 73, and then drive the rotating sleeve 73 to rotate through the outer support rod until the actuating rod 9 is disengaged from the outer support rod. The torsion spring 74 releases the elastic potential energy and drives the hammer 76 to strike the hopper 4 through the high pressure spring 75, causing the ore accumulated in the hopper 4 to fall as the hopper 4 tilts.

[0030] Please see Figure 1-5The cleaning mechanism 8 includes an upper support 81 fixed to the main guide rail 1. An upper guide rail 82 is fixedly installed on the top of the upper support 81. Support beams 83 are symmetrically arranged on the upper guide rail 82. A lower guide rail 89 is fixedly connected between the upper guide rails 82. Support slides are opened on the upper guide rail 82 and the lower guide rail 89 to communicate with each other. An upper sprocket 84 is rotatably connected to the support beam 83 through a bearing. An upper chain belt 85 is wound around the upper sprocket 84. The upper chain belt 85 is connected to the transmission mechanism, which is connected to the conveying mechanism 3. Connecting blocks 86 are symmetrically arranged on the upper chain belt 85. The spacing between the connecting blocks 86 is consistent with the arrangement spacing of the connecting parts 33 on the conveyor belt 32. Support columns 87 are slidably connected to the connecting blocks 86. A rotating processing mechanism 88 is provided at the bottom of the column 87. The rotating processing mechanism 88 includes a support plate 881 rotatably connected to the bottom end of the support column 87. A gear ring 882 is fixedly connected to the top of the support plate 881 by bolts. Three circumferentially distributed support rods 884 are rotatably connected to the support plate 881. Cleaning rollers 885 are provided on the support rods 884. A transmission gear 883 is fixedly connected to the top of the support rods 884. The transmission gear 883 meshes with a central gear 880. The central gear 880 is fixed to the support column 87. The gear ring 882 meshes with a motor gear 886. The motor gear 886 is higher than the height of the transmission gear 883 in the longitudinal position. The motor gear 886 is fixedly connected to the gear ring 882. At the output end of the gear motor, the gear motor is embedded in a closed housing 887, which is used to enclose and protect the gear motor. The closed housing 887 is fixed to a guide frame 888, which is fixed to a support column 87. A second guide wheel 889 is provided on the guide frame 888, which is tumbling in the support slide of the upper guide rail 82. The transmission mechanism includes a transmission sprocket 890, which cooperates with an upper sprocket 84 to tension the upper chain belt 85. The transmission sprocket 890 is fixed to a transmission rod 891, which is rotatably connected to a support beam 83 via a bearing. A first roller 892 is fixedly connected to the bottom end of the transmission rod 891. A transmission belt 893 is wound around 92, and the transmission belt 893 is wound around the second roller 894. The second roller 894 is fixed on one of the transmission wheels 31. The second roller 894, the first roller 892 and the transmission wheel 31 have the same size. When the conveyor motor 34 drives the transmission wheel 31 to rotate, it can drive the second roller 894 to rotate, and then drive the first roller 892 and the transmission sprocket 890 to rotate through the transmission wheel 31. Since the second roller 894, the first roller 892 and the transmission wheel 31 have the same size, the upper chain belt 85 can generate the same running linear speed as the conveyor belt 32 under the action of the transmission sprocket 890, so that a set of rotating processing mechanisms 88 can be located directly above a hopper 4.When the hopper 4 moves along the main guide rail 1 to the cleaning area, it is in a vertical position under the limiting action of the lower guide rail 51 and the main guide rail 1. At this time, a set of rotating processing mechanisms 88 moves along the transmission sprocket 890 at the same speed as the hopper 4, while moving along the upper guide rail 82 and the lower guide rail 89. When the second guide wheel 889 on the guide frame 888 disengages from the upper guide rail 82 and enters the support slide of the lower guide rail 89, the guide frame 888 will drive the support column 87 and the rotating processing mechanism 88 to move down along the path of the lower guide rail 89. During the process, the support column 87 slides on the connecting block 86, and the continuously cooperating transmission sprocket 890 generates the moving power of the rotating processing mechanism 88. When the rotating processing mechanism 88 moves down to above the hopper 4, the closed shell 887... The gear motor drives the motor gear 886 to rotate. The motor gear 886 meshes and drives the gear ring 882 and the support plate 881 to rotate. During the rotation of the support plate 881, the central gear 880 fixed on the support column 87 meshes and drives the transmission gear 883, the support rod 884, and the cleaning roller 885 to rotate. The cleaning roller 885 scrapes the inner wall of the hopper 4, removing the minerals and impurities adhering to the hopper 4, preventing the impurities from adhering for a long time and corroding the inner lining of the hopper 4. As the upper chain belt 85 and the conveyor belt 32 continue to run, the rotating processing mechanism 88 moves up along the lower guide rail 89 and re-enters the upper guide rail 82 until the hopper 4, which is spaced one space apart, moves back to below the rotating processing mechanism 88. This reciprocating cycle achieves the cleaning of the hopper 4 during transportation.

[0031] It should be noted that, in use, this iron ore conveying device first drives the transmission wheel 31 to rotate via the conveyor motor 34, and then moves the hopper 4 along the main guide rail 1 via the conveyor belt 32. When the hopper 4 is in the loading position, the entire hopper 4 is in a vertical state. The mined iron ore is fed from the top of the hopper 4 and moves along the main guide rail 1 to the ore unloading position. At this time, the lower support 54 will disengage from the lower guide rail 51 and slide into the tilting guide rail 52. Along the path of the tilting guide rail 52, the lower support 54 drives the bottom of the hopper 4 to lift up, thereby causing the entire hopper 4 to tilt and dump the ore in the hopper 4 to the unloading position to complete the mining and transportation of the ore. At the same time, when dumping the ore, the actuating rod 9 on the conveyor frame 2 will contact the outer support rod on the rotating sleeve 73 during the movement. After the actuating rod 9 disengages from the outer support rod, the torsion spring 74 releases elastic potential energy and drives the hammer 76 to strike the hopper 4 through the high pressure spring 75, causing the ore accumulated in the hopper 4 to fall as the hopper 4 tilts.

[0032] After the material is discharged, the hopper 4 continues to move along the tilting guide rail 52 until the lower support 54 slides into the lower guide rail 51, and the hopper 4 returns to a vertical position. When the hopper 4 moves along the main guide rail 1 to the cleaning area, the second guide wheel 889 on the guide frame 888 disengages from the upper guide rail 82 and enters the support slide of the lower guide rail 89, causing the rotating processing mechanism 88 to move down along the path of the lower guide rail 89. When the rotating processing mechanism 88 moves down above the hopper 4, the gear motor in the enclosed shell 887 drives the motor gear 886 to rotate, causing the support plate 881 to rotate. Simultaneously, the central gear 880 meshes with the transmission gear 883 and the cleaning roller 885 to rotate and scrape the inner wall of the hopper 4, scraping off the minerals and impurities adhering to the hopper 4. After cleaning, the lower support 54 will enter the tilting guide 53 along the lower guide rail 51. Along the path of the tilting guide 53, the lower support 54 will lift the bottom of the hopper 4, thereby causing the entire hopper 4 to flip over. The ore residue and impurities cleaned by the rotating processing mechanism 88 will be poured out. After the pouring is completed, the hopper 4 will return to its vertical state by entering the lower guide rail 51 along the tilting guide rail 53.

[0033] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A conveyor for the extraction of iron ore, comprising a main rail (1), characterized in that: The main guide rail (1) is connected to a first guide wheel (10) which is rotatably connected to the conveyor frame (2). The conveyor frame (2) is connected to the conveying mechanism (3). The bottom end of the conveyor frame (2) is rotatably connected to a hopper (4). A lever (9) is provided on one side of the conveyor frame (2). The hopper (4) is connected to the self-tilting mechanism (5). The main guide rail (1) is fixed on the main support (6). A knocking feeding mechanism (7) is provided on the main support (6). A cleaning mechanism (8) is provided on the main support (6). The cleaning mechanism (8) includes an upper support (81) fixed on the main guide rail (1), an upper guide rail (82) on the upper support (81), support beams (83) symmetrically arranged on the upper guide rail (82), a lower guide rail (89) fixedly connected to the upper guide rail (82), an upper sprocket (84) rotatably connected to the support beam (83), an upper chain belt (85) wound around the upper sprocket (84), the upper chain belt (85) connected to the transmission mechanism, the transmission mechanism connected to the conveying mechanism (3), connecting blocks (86) symmetrically arranged on the upper chain belt (85), a support column (87) slidably connected to the connecting block (86), and a rotating processing mechanism (88) provided at the bottom of the support column (87). The self-tilting mechanism (5) includes a lower guide rail (51) fixed on the main support (6), a tilting guide rail (52) and a tilting guide rail (53) connected to the lower guide rail (51), a lower support (54) provided on the lower guide rail (51), and the lower support (54) connected to the hopper (4). The conveying mechanism (3) includes a drive wheel (31) rotatably connected to the main support (6), a conveyor belt (32) tensioned on the drive wheel (31), and connectors (33) evenly arranged on the conveyor belt (32). The connectors (33) are fixed on the conveyor frame (2). A conveyor motor is fixedly connected to the top of the main support (6). (34) The output end of the conveyor motor (34) is fixedly connected to one of the transmission wheels (31). The transmission mechanism includes a transmission sprocket (890) wound around the upper chain belt (85). The transmission sprocket (890) is fixed on the transmission rod (891). The transmission rod (891) is rotatably connected to the support beam (83). The bottom end of the transmission rod (891) is fixedly connected to a first roller (892). A transmission belt (893) is wound around the first roller (892). The transmission belt (893) is wound around a second roller (894). The second roller (894) is fixed on one of the transmission wheels (31).

2. The conveying device for mining iron ore according to claim 1, characterized in that: The rotating processing mechanism (88) includes a support plate (881) rotatably connected to the bottom end of the support column (87), a gear ring (882) fixedly connected to the top of the support plate (881), a support rod (884) rotatably connected to the support plate (881), a cleaning roller (885) provided on the support rod (884), a transmission gear (883) fixedly connected to the top end of the support rod (884), the transmission gear (883) meshing with the central gear (880), and the central gear (880) fixed on the support column (87).

3. The conveying device for mining iron ore according to claim 2, characterized in that: The gear ring (882) meshes with the motor gear (886), the motor gear (886) is fixedly connected to the output end of the gear motor, the gear motor is embedded in the closed shell (887), the closed shell (887) is fixed on the guide frame (888), the guide frame (888) is fixed on the support column (87), and a second guide wheel (889) is provided on the guide frame (888), the second guide wheel (889) is tumbling connected in the upper guide rail (82).

4. The conveying device for mining iron ore according to claim 1, characterized in that: The striking feeding mechanism (7) includes a mounting frame (71) fixed on one side of the main support (6), and fixing sleeves (72) are evenly arranged on the mounting frame (71).

5. A conveying device for mining iron ore according to claim 4, characterized in that: A rotating sleeve (73) is rotatably connected to the fixed sleeve (72). An outer support rod is provided on the outer wall of the rotating sleeve (73). One end of the torsion spring (74) is fixedly connected to the fixed sleeve (72), and the other end of the torsion spring (74) is fixed on the rotating sleeve (73).

6. A conveying device for mining iron ore according to claim 5, characterized in that: A high-pressure spring (75) is provided on the side wall of the rotating sleeve (73), and a hammer (76) is fixed to one end of the high-pressure spring (75).

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