Transportation device for underground mineral exploitation

Abstract

The invention discloses a transportation device for underground mineral exploitation, and relates to the technical field of mineral exploitation, the transportation device comprises a frame, a two-stage driving unit, a first transportation box and a second transportation box, and the first transportation box and the second transportation box are slidably mounted on the inner side of the frame; the two-stage driving unit is in threaded connection with the first transport box and the second transport box, so that the two-stage driving unit drives the first transport box and the second transport box to move in opposite directions during operation; one end of the two-stage rolling and pulling unit is connected with the two-stage driving unit, a connecting rod is fixed to the other end of the two-stage rolling and pulling unit, and a material storage box is fixed to the upper end of the connecting rod; and the two-stage discharging unit is arranged at the front end of the material storage box and connected with the two-stage rolling and pulling unit, and the problems that when a traditional conveying device specifically operates, the conveying process is interrupted for a long time, the overall conveying period is prolonged, and the mineral product conveying amount in unit time is limited are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of mineral mining, and specifically to a transportation device for underground mineral mining. Background Art

[0002] Underground mineral mining is an important way to obtain various mineral resources. During the entire mining process, the transportation device plays an indispensable role. It is responsible for efficiently and safely transporting the mined ore from the underground working face to the ground, and transporting the equipment, materials, etc. required for mining to the designated underground location. With the continuous expansion of the scale of underground mineral mining and the increase in mining depth, the demand for transportation devices is becoming increasingly diverse and complex. Various types of transportation devices, such as rail-mounted mine cars, belt conveyors, and trackless transport vehicles, have emerged and play important roles in different mining environments and working conditions, ensuring the smooth progress of underground mineral mining operations.

[0003] However, when the traditional transportation device operates specifically, when a single transportation box is filled with minerals, it often needs to wait for processing, such as removing the filled transportation box and re-placing an empty box. This process will cause a long interruption in the transportation process, resulting in an extended overall transportation cycle, limited mineral transportation volume per unit time, and difficulty in meeting the requirements of efficient transportation for underground mineral mining, greatly affecting the overall efficiency of the mining operation. Therefore, there is an urgent need to provide a transportation device for underground mineral mining. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides a transportation device for underground mineral mining, which solves the problem that the traditional transportation device will cause a long interruption in the transportation process during specific operation, resulting in an extended overall transportation cycle and limited mineral transportation volume per unit time.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: A transportation device for underground mineral mining, including a frame, and further including: A dual-stage driving unit, a first transportation box, and a second transportation box. The first transportation box and the second transportation box are slidably installed inside the frame, and the dual-stage driving unit is threadedly connected to the first transportation box and the second transportation box, so that when the dual-stage driving unit operates, it drives the first transportation box and the second transportation box to move in opposite directions; A dual-stage winding unit, one end of the dual-stage winding unit is connected to the dual-stage driving unit, and a connecting rod is fixed to the other end. A storage box is fixed to the upper end of the connecting rod; A dual-stage discharging unit, which is arranged at the front end of the storage box and is connected to the dual-stage winding unit, so that the dual-stage winding unit provides winding power for the dual-stage discharging unit, and then discharges materials correspondingly to the first transportation box and the second transportation box.

[0006] Preferably, the dual-stage drive unit includes a mounting shell welded to the lower part of the frame. Inside the mounting shell, two groups of mutually parallel drive worms are rotatably mounted horizontally. One end of the two groups of drive worms extends outside the mounting shell and is connected to a belt drive assembly, and the two groups of drive worms are driven to rotate synchronously through the operation of the belt drive assembly.

[0007] Preferably, an electromagnetic braking motor is fixedly installed at one end of the mounting shell, and the power output end of the electromagnetic braking motor is connected to the power input end of the belt drive assembly.

[0008] Preferably, a screw rod is rotatably mounted vertically in the mounting shell. A worm gear meshed with the worm is fixed to the lower part of the screw rod. Threaded blocks for threaded connection with the screw rod are fixed to the outer walls of one side of the first transport box and the second transport box.

[0009] Preferably, the dual-stage winding unit includes a mounting box fixed to the rear of the mounting shell. A rotating shaft is rotatably mounted horizontally inside the mounting box. Both ends of the rotating shaft extend outside the mounting box and are fixed with rope winding wheels, and a pulling rope is wound around the rope winding wheels.

[0010] Preferably, a second bevel gear is fixed to the rotating shaft, and the end of the drive worm extends into the mounting box and is fixed with a first bevel gear meshed with the second bevel gear.

[0011] Preferably, the dual-stage feeding unit includes a limiting block fixed to the front end of the storage box. Two groups of sliding plates are slidably mounted inside the limiting block to block the discharge port of the storage box. A fixing piece is arranged at the top of the storage box, and a tension spring is connected between the fixing piece and the sliding plate. The top of the sliding plate is connected to the pulling rope.

[0012] Preferably, a feeding hopper is connected to the top of the storage box in a communicating manner, and a control valve is installed below the feeding hopper. A discharge plate is fixed to the front end of the limiting block.

[0013] Beneficial effects The present invention provides a transportation device for underground mineral mining. Compared with the prior art, it has the following beneficial effects: 1. The transportation device for underground mineral extraction has a unique alternate feeding design that significantly improves the transportation efficiency of underground minerals. During transportation, when one transportation box is filled with minerals, only by controlling the electromagnetic braking motor to rotate in the reverse direction can the alternate loading and unloading of the two transportation boxes be quickly achieved. At the same time, the winding rope wheel that was originally in a tensioned state gradually relaxes, while the other set of pulling ropes starts to wind and run, correspondingly driving the sliding plate of the double-stage feeding unit to move, realizing precise alternate feeding. This alternate feeding method avoids the time waste caused by waiting for processing when a single transportation box is filled during traditional transportation, making the transportation process almost uninterrupted, greatly shortening the overall transportation cycle. In the working scenario of underground mineral extraction where high efficiency is required, it can quickly and continuously transfer minerals from the storage bin to the transportation box, thus effectively increasing the mineral transportation volume per unit time and greatly enhancing the overall efficiency of the mining operation.

[0014] 2. In the double-stage drive unit of the transportation device, the power output of the electromagnetic braking motor drives the belt drive assembly, which quickly and stably transmits the power to two groups of parallel drive worms to achieve synchronous rotation. This belt drive structure is simple, convenient for installation and maintenance, and has low energy loss. The drive worm meshes with the worm gear, converting the rotation into the vertical rotation of the screw. The worm gear drive has a large transmission ratio and can achieve a large reduction ratio in a limited space, ensuring stable and efficient power transmission. The transportation box is threadedly connected to the screw through a threaded block, effectively converting the rotation of the screw into the linear motion of the transportation box, with high transmission efficiency and can accurately drive the transportation box in the reverse direction to the specified position. In the double-stage winding and pulling unit, the first bevel gear at the end of the drive worm meshes with the second bevel gear, driving the rotating shaft to make the winding rope wheel wind the pulling rope. The bevel gear drive is stable and efficient, ensuring timely and accurate winding and pulling, providing stable power support for feeding, improving the power transmission efficiency, reducing the operation cost, and enhancing the performance and reliability of the equipment.

[0015] 3. The transmission structure of the transportation device has high linkage, and each component cooperates with each other to ensure smooth transportation. The double-stage drive unit is the power source, which drives two groups of drive worms to rotate synchronously through the belt drive. It not only drives the transportation box to slide in the reverse direction but also triggers the linkage of the double-stage winding and pulling unit. When the drive worm rotates, the bevel gear at the end drives the rotating shaft to make the winding rope wheel wind the pulling rope, cleverly transmitting the power to the feeding link and realizing the synchronization of the movement of the transportation box and feeding. The winding of the pulling rope opens the discharge port of the storage bin by the sliding plate to complete feeding. When alternate feeding is required, control the electromagnetic braking motor to reverse, and the transmission structure is adjusted accordingly. The states of the transportation box, winding rope wheel, and pulling rope change to achieve alternate feeding. This linkage makes each link closely connected, improves the degree of automation and the working fluency, reduces faults and efficiency losses, and ensures efficient and stable transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the first perspective schematic diagram of the present invention; Figure 2Schematic diagram of the second perspective of the present invention; Figure 3 Schematic diagram of the third perspective of the present invention; Figure 4 Schematic diagram of the feeding structure of the present invention; Figure 5 Schematic diagram of the double-stage feeding unit of the present invention; Figure 6 Schematic diagram of the double-stage drive unit and double-stage winding unit structure of the present invention; Figure 7 For the present invention Figure 6 Enlarged structure schematic diagram at position A.

[0017] In the figure: 1-frame, 2-double-stage drive unit, 21-mounting shell, 22-driving worm, 23-belt drive assembly, 24-electromagnetic braking motor, 25-screw, 26-worm gear, 27-threaded block, 3-first transport box, 4-second transport box, 5-double-stage winding unit, 51-mounting box, 52-rotating shaft, 53-rope winding wheel, 54-pulling rope, 55-first bevel gear, 56-second bevel gear, 6-connecting rod, 7-storage box, 8-double-stage feeding unit, 81-limit block, 82-slide plate, 83-fixed plate, 84-tension spring, 9-feeding hopper, 10-discharge plate. Specific embodiments

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1-7 , the present invention provides a technical solution: a transportation device for underground mineral mining, specifically including the following embodiments: Embodiment 1: A transportation device for underground mineral mining, including a frame 1, further comprising: a two-stage drive unit 2, a first transportation box 3, and a second transportation box 4. The first transportation box 3 and the second transportation box 4 are slidably installed inside the frame 1, and the two-stage drive unit 2 is threadedly connected to the first transportation box 3 and the second transportation box 4, so that when the two-stage drive unit 2 operates, it drives the first transportation box 3 and the second transportation box 4 to move in opposite directions; a two-stage winding unit 5, one end of the two-stage winding unit 5 is connected to the two-stage drive unit 2, and a connecting rod 6 is fixed to the other end thereof, and a storage box 7 is fixed to the upper end of the connecting rod 6; a two-stage discharging unit 8, the two-stage discharging unit 8 is arranged at the front end of the storage box 7 and is connected to the two-stage winding unit 5, so that the two-stage winding unit 5 provides winding power for the two-stage discharging unit 8, and then discharges materials correspondingly to the first transportation box 3 and the second transportation box 4; minerals are transported to the feeding hopper through an external transportation device and enter the storage box 7 through the feeding hopper. At this time, the slide plate 82 of the two-stage discharging unit 8 tightly blocks the discharge port of the storage box 7 under the action of the tension spring 84 to prevent the minerals from leaking out in advance. The first transportation box 3 and the second transportation box 4 are in the initial positions inside the frame 1, and the two-stage drive unit 2 is in a stopped state. When starting the transportation operation, the two-stage drive unit 2 starts to operate, drives the first transportation box 3 and the second transportation box 4 to slide along the inside of the frame 1 in opposite directions through threaded connection. At the same time, the two-stage drive unit 2 drives the two-stage winding unit 5 to work, and the two-stage winding unit 5 provides winding power for the two-stage discharging unit 8 to open the slide plate 82, and the minerals fall into the corresponding first transportation box 3 or second transportation box 4 from the storage box 7 to achieve corresponding discharging.

[0020] Embodiment 2: The main difference between the technical solution of this embodiment and that of the first embodiment lies in: a transportation device for underground mineral mining. The double-stage drive unit 2 includes an installation shell 21 welded to the lower part of the frame 1. Inside the installation shell 21, two groups of parallel transmission worms 22 are rotatably installed horizontally. One end of the two groups of transmission worms 22 extends outside the installation shell 21 and is connected with a belt drive assembly 23. The two groups of transmission worms 22 are driven to rotate synchronously through the operation of the belt drive assembly 23. One end of the installation shell 21 is fixedly installed with an electromagnetic braking motor 24, and the power output end of the electromagnetic braking motor 24 is connected with the power input end of the belt drive assembly 23. A screw rod 25 is rotatably installed vertically in the installation shell 21. A worm gear 26 meshing with the worm 22 is fixed to the lower part of the screw rod 25. Threaded blocks 27 threadedly connected with the screw rod 25 are fixed to the outer walls of one side of the first transportation box 3 and the second transportation box 4 respectively; in the initial state, the electromagnetic braking motor 24 is in a stopped state. The first transportation box 3 and the second transportation box 4 are located at the initial position inside the frame 1. The storage box 7 has completed feeding. The slide plate 82 blocks the discharge port. When the electromagnetic braking motor 24 is started, its power output end drives the belt drive assembly 23 to operate. The belt drive assembly 23 drives the two groups of parallel transmission worms 22 to rotate synchronously. The transmission worm 22 meshes with the worm gear 26 to make the screw rod 25 rotate. Through the threaded connection between the threaded block 27 and the screw rod 25, the first transportation box 3 and the second transportation box 4 slide along the inside of the frame 1 in opposite directions.

[0021] The double-stage winding unit 5 includes an installation box 51 fixed to the rear of the installation shell 21. Inside the installation box 51, a rotating shaft 52 is rotatably installed horizontally. The two ends of the rotating shaft 52 extend outside the installation box 51 and are fixed with winding wheels 53. A pulling rope 54 is wound around the winding wheels 53. A second bevel gear 56 is fixed to the rotating shaft 52. And a first bevel gear 55 meshing with the second bevel gear 56 is fixed to the end of the transmission worm 22 extending into the installation box 51; when the transmission worm 22 rotates, the first bevel gear 55 at its end extending into the installation box 51 rotates accordingly. The first bevel gear 55 meshes with the second bevel gear 56 to drive the rotating shaft 52 to rotate. The rotation of the rotating shaft 52 causes the winding wheels 53 at both ends to rotate, and the winding wheels 53 start to wind the pulling rope 54.

[0022] The double-stage discharging unit 8 includes a limiting block 81 fixed to the front end of the storage box 7. A slide plate 82 is slidably installed inside the limiting block 81. Two groups of the slide plates 82 are specifically provided to block the discharge port of the storage box 7. A fixing piece 83 is provided at the top of the storage box 7. And a tension spring 84 is connected between the fixing piece 83 and the slide plate 82. The top of the slide plate 82 is connected with the pulling rope 54; as the winding wheel 53 winds the pulling rope 54, the pulling rope 54 pulls the slide plate 82 to slide down along the inside of the limiting block 81 against the tension of the tension spring 84. After the slide plate 82 slides down, the discharge port of the storage box 7 is opened, and the minerals fall from the discharge port.

[0023] A feeding hopper 9 is connected to the top of the storage bin 7 in a communicating manner, and a control valve is installed at the lower part of the feeding hopper 9. A discharge plate 10 is fixed to the front end of the limit block 81. Minerals are added to the storage bin 7 through the feeding hopper 9. The operator can adjust the feeding amount by controlling the control valve at the lower part of the feeding hopper 9. The minerals falling from the discharge port of the storage bin 7 are guided by the discharge plate 10 and respectively fall into the first transport box 3 and the second transport box 4 moving in opposite directions. When the first transport box 3 or the second transport box 4 is filled with minerals, the electromagnetic braking motor 24 is controlled to rotate in the reverse direction. After corresponding transmission, the first transport box 3 and the second transport box 4 alternately load and unload materials. At the same time, the winding rope wheel 53 that was originally in a tensioned state gradually relaxes, and the other set of pull ropes 54 starts to wind and run, realizing alternate discharging.

[0024] At the same time, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0025] During operation, the minerals transported by the conveyor belt machine are added to the storage bin 7 through the feeding hopper 9. When feeding, the feeding amount can be adjusted by controlling the control valve at the lower part of the feeding hopper 9. At this time, the slide plate 82 of the double-stage discharging unit 8 tightly blocks the discharge port of the storage bin 7 under the action of the tension spring 84 to prevent the minerals from leaking out in advance. The first transport box 3 and the second transport box 4 are at the initial positions inside the frame 1, and the electromagnetic braking motor 24 is in a stopped state. By starting the electromagnetic braking motor 24, the power output end of the electromagnetic braking motor 24 drives the belt transmission assembly 23 to operate. After the belt transmission assembly 23 operates, it drives two sets of parallel transmission worm gears 22 to rotate synchronously. This is because one end of the two sets of transmission worm gears 22 extends outside the installation shell 21 and is connected by the belt transmission assembly 23. When the transmission worm gears 22 rotate, they mesh with the worm wheels 26 fixed to the lower part of the screw 25, thereby driving the vertically rotatably installed screw 25 to rotate. Since threaded blocks 27 that are threadedly connected to the screw 25 are fixed to the outer walls of one side of the first transport box 3 and the second transport box 4, when the screw 25 rotates, the first transport box 3 and the second transport box 4 will slide along the inside of the frame 1 in opposite directions and respectively move to the designated positions. While the driving worm 22 rotates, the first bevel gear 55 whose end extends into the installation box 51 and is fixed also rotates accordingly. The first bevel gear 55 meshes with the second bevel gear 56 fixed on the rotating shaft 52, thereby driving the rotating shaft 52 to rotate. The winding wheels 53 fixed at both ends of the rotating shaft 52 and extending outside the installation box 51 rotate accordingly. A set of pulling ropes 54 wound around the winding wheels 53 start to be wound, and the other set of pulling ropes 54 remains in a slack state continuously. As the pulling ropes 54 are wound, the sliding plate 82 connected to the pulling ropes 54 overcomes the pulling force of the tension spring 84 and slides along the inner side of the limiting block 81. The sliding plate 82 gradually moves downward and then opens the discharge port of the storage bin 7 corresponding to the sliding plate 82. The minerals fall from the discharge port of the storage bin 7, pass through the discharge plate 10, and respectively fall into the first transport box 3 and the second transport box 4 moving in opposite directions, realizing corresponding material discharging. When the first transport box 3 or the second transport box 4 is filled with minerals, the electromagnetic braking motor 24 is controlled to rotate in the reverse direction. After corresponding transmission, the first transport box 3 and the second transport box 4 alternate in loading and unloading. At the same time, the winding wheels 53 that were originally in a tensioned state gradually become slack, and the other set of pulling ropes 54 starts to wind and run, realizing alternate material discharging.

[0026] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0027] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A transportation device for underground mineral mining, comprising a frame (1), characterized in that: It further includes: A two-stage drive unit (2), a first transport box (3), and a second transport box (4). The first transport box (3) and the second transport box (4) are slidably installed inside the frame (1), and the two-stage drive unit (2) is threadedly connected to the first transport box (3) and the second transport box (4), so that when the two-stage drive unit (2) operates, it drives the first transport box (3) and the second transport box (4) to move in opposite directions; A two-stage winding unit (5). One end of the two-stage winding unit (5) is connected to the two-stage drive unit (2), and a connecting rod (6) is fixed to the other end. A storage box (7) is fixed to the upper end of the connecting rod (6); A two-stage feeding unit (8). The two-stage feeding unit (8) is arranged at the front end of the storage box (7) and is connected to the two-stage winding unit (5), so that the two-stage winding unit (5) provides winding power for the two-stage feeding unit (8), and then feeds materials correspondingly to the first transport box (3) and the second transport box (4).

2. The transportation device for underground mineral mining according to claim 1, wherein: The two-stage drive unit (2) includes a mounting shell (21) welded to the lower part of the frame (1). Two mutually parallel driving worms (22) are horizontally rotatably installed inside the mounting shell (21). One end of the two driving worms (22) extends outside the mounting shell (21) and is connected to a belt drive assembly (23), and the two driving worms (22) are driven to rotate synchronously through the operation of the belt drive assembly (23).

3. The transportation device for underground mineral extraction according to claim 2, characterized in that: An electromagnetic braking motor (24) is fixedly installed at one end of the mounting shell (21), and the power output end of the electromagnetic braking motor (24) is connected to the power input end of the belt drive assembly (23).

4. The transportation device for underground mineral mining according to claim 2, characterized in that: A screw rod (25) is vertically rotatably installed in the mounting shell (21). A worm gear (26) engaged with the worm (22) is fixed to the lower part of the screw rod (25). Threaded blocks (27) threadedly connected to the screw rod (25) are fixed to the outer walls of one side of the first transport box (3) and the second transport box (4).

5. The transportation device for underground mineral mining according to claim 2, characterized in that: The two-stage winding unit (5) includes a mounting box (51) fixed to the rear of the mounting shell (21). A rotating shaft (52) is horizontally rotatably installed inside the mounting box (51). The two ends of the rotating shaft (52) extend outside the mounting box (51) and fixed winding wheels (53) are provided. A pulling rope (54) is wound around the winding wheels (53).

6. The transportation device for underground mineral exploitation according to claim 5, characterized in that: A second bevel gear (56) is fixed to the rotating shaft (52), and a first bevel gear (55) engaged with the second bevel gear (56) is fixed to the end of the driving worm (22) extending into the mounting box (51).

7. The transportation device for underground mineral exploitation according to claim 5, characterized in that: The two-stage feeding unit (8) includes a limiting block (81) fixed to the front end of the storage box (7). A sliding plate (82) is slidably installed inside the limiting block (81). Specifically, two sliding plates (82) are provided to block the discharge port of the storage box (7). A fixing piece (83) is provided at the top of the storage box (7), and a tension spring (84) is connected between the fixing piece (83) and the sliding plate (82). The top of the sliding plate (82) is connected to the pulling rope (54).

8. The transportation device for underground mineral exploitation according to claim 7, characterized in that: The top of the storage bin (7) is connected to a feeding hopper (9) in a communicating manner, and a control valve is installed at the lower part of the feeding hopper (9). The front end of the limiting block (81) is fixed with a discharge plate (10).

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