Anti-scattering coal mine underground coal conveying device
By installing a speed limiter and speed control components in the underground coal mine conveying device, and adjusting the contact surface between the arc-shaped groove on the rotating shaft and the coal, the problem of coal spillage was solved, stable conveying was achieved, and conveying efficiency was improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENHUA GUONENG ENERGY GRP
- Filing Date
- 2025-05-21
- Publication Date
- 2026-05-01
AI Technical Summary
Coal is prone to spillage during underground transportation, and the existing conveyor belt structure lacks effective protective components, resulting in frequent coal spillage.
A coal conveying device for preventing spillage in underground coal mines was designed, including a conveyor frame, a conveyor belt, a speed limiter, a feeding assembly, and a speed regulating assembly. By adjusting the contact surface between the arc-shaped groove on the rotating shaft and the coal, the feeding speed is controlled to achieve stable coal conveying.
It effectively prevents coal spillage, ensures the continuity and stability of coal transportation, and improves transportation efficiency.
Smart Images
Figure CN224185233U_ABST
Abstract
Description
A coal conveying device for preventing spillage in underground coal mines Technical Field
[0001] This disclosure relates to the field of underground coal conveying technology, and in particular to an underground coal conveying device for preventing spillage in coal mines. Background Technology
[0002] Coal is a solid combustible mineral formed gradually from ancient plants buried underground and undergoing complex biochemical and physicochemical changes. It is the main energy source supporting my country's national economic development, an important guarantee for energy security, and an important raw material for industrial production. Its high-quality development is the key to my country's energy transformation.
[0003] During coal mining, the coal needs to be transported to a relatively spacious area that is convenient for secondary transfer in order to output the coal from the mine. This process generally uses a conveyor belt structure with strong conveying continuity. However, when using a conveyor belt structure, the unpredictable feeding speed and quality, as well as the lack of corresponding protective components, can easily lead to coal spillage. Summary of the Invention
[0004] This disclosure is made in view of the above-mentioned problems. This disclosure provides a coal conveying device for preventing spillage in underground coal mines.
[0005] According to one aspect of this disclosure, a coal conveying device for preventing spillage in underground coal mines is provided, including a conveyor frame, a conveyor belt on the conveyor frame, a material conveying box above one end of the conveyor frame, a speed limiting box at the lower end of the material conveying box, a material passing through the speed limiting box, an inlet end of the material passing through the speed limiting box communicating with the outlet at the lower end of the material conveying box, and an outlet end of the material passing through the material passing through the speed limiting box located directly above the conveyor belt; the speed limiting box is provided with a feeding component and a speed regulating component.
[0006] Furthermore, according to one aspect of this disclosure, a coal conveying device for preventing spillage in underground coal mines includes a feeding assembly comprising a feeding motor and a rotating shaft; the feeding motor is fixedly installed on one side of the speed limiting box, and the output shaft of the feeding motor is fixedly connected to one end of the rotating shaft; the rotating shaft has multiple arc-shaped grooves along its axial direction, and these multiple arc-shaped grooves are evenly arranged along the circumferential direction of the rotating shaft; the rotating shaft extends into the material passage and is rotatably connected to the speed limiting box; the speed regulating assembly can adjust the size of the arc-shaped grooves on the rotating shaft to change the contact surface between the arc-shaped grooves and the coal.
[0007] Furthermore, according to one aspect of this disclosure, a coal conveying device for preventing spillage in underground coal mines includes a speed regulating component comprising a locking shaft, a connecting plate, a bearing with a seat, a threaded rod, and a guide rod. The locking shaft is composed of multiple locking strips spliced together, each corresponding to a one-to-one arc-shaped groove. Each locking strip is slidably installed within its corresponding arc-shaped groove. One end of the locking shaft passes through the speed limiting box and is fixedly connected to the connecting plate via the bearing with a seat, and the locking shaft is rotatably connected to the speed limiting box. The threaded rod is rotatably installed within the speed limiting box and is parallel to the rotating shaft, with one end extending out of the speed limiting box and rotatably connected to the connecting plate. The guide rod is slidably connected to the speed limiting box and is parallel to the threaded rod, and is fixedly connected to the connecting plate.
[0008] Furthermore, according to one aspect of this disclosure, in a coal conveying device for preventing spillage in a coal mine, the axis of the rotating shaft is perpendicular to the center line of the material passage; the two ends of the material passage are rectangular, and the middle part of the material passage has arc-shaped surfaces on opposite sides, the two arc-shaped surfaces forming a receiving channel; the rotating shaft is located within the receiving channel.
[0009] Furthermore, according to one aspect of this disclosure, in a coal conveying device for preventing spillage in a coal mine, the bearing with a seat is fixedly installed in the middle of the connecting plate; the guide rod and the threaded rod are respectively located on both sides of the bearing with a seat.
[0010] Furthermore, according to one aspect of this disclosure, in a coal conveying device for preventing spillage in underground coal mines, a fixing nut is provided at the connection between the speed limiting box and the threaded rod.
[0011] Furthermore, according to one aspect of this disclosure, in a coal conveying device for preventing spillage in a coal mine, an adjusting turntable is fixedly installed at the end of the threaded rod away from the speed limiter.
[0012] Furthermore, according to one aspect of this disclosure, a coal conveying device for preventing spillage in underground coal mines includes symmetrical support legs fixedly provided at the bottom of the conveyor frame; conveyor rollers are erected between the conveyor frames; the conveyor belt is disposed outside the conveyor rollers; and one end of the conveyor roller at one end is connected to a conveyor motor with a speed reducer.
[0013] Furthermore, according to one aspect of this disclosure, in a coal conveying device for preventing spillage in underground coal mines, the conveying box has a rectangular cross-section.
[0014] Furthermore, according to one aspect of this disclosure, in a coal mine underground coal conveying device for preventing spillage, the conveying box is fixedly connected to the speed limiting box, and the lower end of the conveying box is provided with a discharge port, the shape of which is the same as the shape of the inlet end of the material passage.
[0015] This disclosure involves setting up a speed limiting box, on which a feeding component and a speed regulating component are installed. By adjusting the locking shaft of the component, the arc-shaped groove on the rotating shaft of the feeding component is blocked, changing the contact surface between the arc-shaped groove on the rotating shaft and the coal. This alters the amount of coal passing through the material passage of the speed limiting box. By changing the contact surface between the arc-shaped groove on the rotating shaft and the coal according to the state of the coal, the feeding speed is adjustable, thereby limiting the coal feeding speed and further preventing coal spillage. Attached Figure Description
[0016] The above and other objects, features, and advantages of this disclosure will become more apparent from the more detailed description of the embodiments thereof in conjunction with the accompanying drawings. The drawings are provided to further illustrate the embodiments of this disclosure and form part of the specification. They are used together with the embodiments of this disclosure to explain the disclosure and do not constitute a limitation thereof. In the drawings, the same reference numerals generally represent the same components or steps.
[0017] Figure 1 is a structural schematic diagram of an underground coal conveying device for preventing spillage in coal mines disclosed in this disclosure.
[0018] Figure 2 is a schematic diagram of the position distribution of the threaded rod and connecting plate when the speed of this product is unlimited.
[0019] Figure 3 is a magnified view of the structure at point A in Figure 1.
[0020] Figure 4 is a structural schematic diagram of Figure 1 from another perspective.
[0021] Figure 5 is a schematic diagram showing the position distribution of the rotating shaft and the engaging shaft.
[0022] Figure 6 is a cross-sectional view of the speed limiter.
[0023] Explanation of reference numerals in the attached figures:
[0024] 1-Conveyor frame, 2-Support leg, 3-Conveyor roller, 4-Conveyor belt, 5-Conveyor motor, 6-Fixed column, 7-Feeding box, 8-Speed limiter box, 9-Material passage, 10-Discharge motor, 11-Rotating shaft, 12-Clamping shaft, 13-Bearing with seat, 14-Connecting plate, 15-Guide rod, 16-Fixing nut, 17-Threaded rod, 18-Adjusting turntable, 19-Accommodation passage. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of this disclosure more apparent, exemplary embodiments according to this disclosure will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this disclosure, and not all embodiments of this disclosure. It should be understood that this disclosure is not limited to the exemplary embodiments described herein.
[0026] Referring to Figures 1-5, this disclosure presents a coal conveying device for preventing spillage in underground coal mines, including a conveyor frame 1 with symmetrical support legs 2 fixedly mounted at its bottom; conveyor rollers 3 are mounted between the conveyor frames 1, and a connecting horizontal plate is provided between the conveyor frames 1, located below the conveyor rollers 3; a conveyor belt 4 is mounted on the outer side of the conveyor rollers 3, the conveyor belt 4 matching the shape of the conveyor rollers 3, and a conveyor motor 5 with a speed reducer is connected to one end of the conveyor roller 3; the connection of the conveyor motor 5 with a speed reducer to one end of the conveyor roller 3 facilitates stable operation of the device. When conveying coal, the conveyor motor 5 starts, driving the conveyor rollers 3 to rotate. The rotation of the conveyor rollers 3 generates friction with the conveyor belt 4, causing the conveyor belt 4 to rotate, thus completing the conveying of coal on the conveyor belt 4. A material conveying box 7 is provided above one end of the conveyor frame 1. The material conveying box 7 has a rectangular cross-section. A speed limiting box 8 is provided at the lower end of the material conveying box 7. A material passage 9 is provided on the speed limiting box 8, which passes through the speed limiting box 8. The inlet end of the material passage 9 is connected to the outlet end of the material conveying box 7. The outlet end of the material passage 9 is located directly above the conveyor belt 4. The speed limiting box 8 is provided with a feeding component and a speed regulating component. In a specific implementation, fixed columns 6 are symmetrically arranged on one side of the upper end of the conveyor frame 1. The material conveying box 7 is fixedly installed on the upper end of the fixed columns 6. The material conveying box 7 is fixedly connected to the speed limiting box 8. An outlet is provided at the lower end of the material conveying box 7. The shape of the outlet is the same as the shape of the inlet end of the material passage 9.
[0027] The feeding assembly includes a feeding motor 10 and a rotating shaft 11. The feeding motor 10 is fixedly installed on one side of the speed limiting box 8. The output shaft of the feeding motor 10 is fixedly connected to one end of the rotating shaft 11. The rotating shaft 11 has multiple arc-shaped grooves along its axial direction, which are evenly arranged along the circumferential direction of the rotating shaft 11. The rotating shaft 11 extends into the material passage 9 and is rotatably connected to the speed limiting box 8. The speed regulating assembly can adjust the size of the arc-shaped grooves on the rotating shaft 11, changing the contact surface between the arc-shaped grooves and the coal, thereby changing the amount of coal passing through the material passage 9, thus limiting the coal feeding speed and further preventing coal spillage.
[0028] The speed control assembly includes a locking shaft 12, a connecting plate 14, a seated bearing 13, a threaded rod 17, and a guide rod 15. The locking shaft 12 is composed of multiple locking strips, each corresponding to an arc-shaped groove. The locking strips are slidably installed within their respective arc-shaped grooves. One end of the locking shaft 12 passes through the speed limiter 8 and is fixedly connected to the connecting plate 14 via the seated bearing 13. The locking shaft 12 is rotatably connected to the speed limiter 8. The threaded rod 17 is rotatably installed inside the speed limiter 8 and is parallel to the rotating shaft 11. One end of the threaded rod 17 extends out of the speed limiter 8 and is rotatably connected to the connecting plate 14. A fixing nut 16 is provided at the connection between the speed limiter 8 and the threaded rod 17. The guide rod 15 is slidably connected to the speed limiter 8 and is parallel to the threaded rod 17. The guide rod 15 is fixedly connected to the connecting plate 14. In one implementation, the seated bearing 13 is fixedly installed in the middle of the connecting plate 14. The guide rod 15 and the threaded rod 17 are located on either side of the seated bearing 13. The guide rod 15 serves a guiding function.
[0029] Referring to Figure 6, the axis of the rotating shaft 11 is perpendicular to the center line of the material passage 9; the two ends of the material passage 9 are rectangular, and the middle part of the material passage 9 has two opposite arc-shaped surfaces, which together form the receiving channel 19; the rotating shaft 11 is located inside the receiving channel 19. To facilitate the rotation of the threaded rod 17, an adjusting turntable 18 is fixedly installed at the end of the threaded rod 17 away from the speed limiter 8, as shown in Figure 3.
[0030] In practical use, firstly, the adjusting turntable 18 is rotated, which drives the threaded rod 17 to rotate. The threaded rod 17 rotates and engages with the fixing nut 16, so that the threaded rod 17, connecting plate 14, and guide rod 15 approach the speed limiting box 8, thereby driving the locking shaft 12 to close the arc-shaped groove on the rotating shaft 11, changing the size of the arc-shaped groove on the rotating shaft 11, thereby achieving speed limiting. Then, the mined coal is conveyed into the conveying box 7 through other devices. The feeding motor 10 rotates, driving the rotating shaft 11 and locking shaft 12 to rotate, so as to stabilize the feeding. At the same time, the locking shaft 12 is adjusted to close the arc-shaped groove on the rotating shaft 11 according to the actual situation. The conveying motor 5 is started, driving the conveying roller 3 to rotate. The rotating conveying roller 3 generates friction with the conveyor belt 4, causing the conveyor belt 4 to rotate, thus completing the conveying of coal on the conveyor belt 4.
[0031] The basic principles of this disclosure have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this disclosure are merely examples and not limitations, and should not be considered as essential features of each embodiment of this disclosure. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the scope of this disclosure to the necessity of employing the aforementioned specific details for implementation.
[0032] The block diagrams of devices, apparatuses, devices, and systems disclosed herein are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, devices, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.
[0033] Additionally, as used herein, the “or” used in a list of items beginning with “at least one” indicates a separate list, such that a list of, for example, “at least one of A, B, or C” means A or B or C, or AB or AC or BC, or ABC (i.e., A and B and C). Furthermore, the word “exemplary” does not imply that the described example is preferred or better than other examples.
[0034] It should also be noted that in the systems and methods of this disclosure, the components or steps can be decomposed and / or recombined. These decompositions and / or recombinations should be considered as equivalent solutions to this disclosure.
[0035] Various changes, substitutions, and modifications can be made to the technology described herein without departing from the teachings defined by the appended claims. Furthermore, the scope of the claims of this disclosure is not limited to the specific aspects of the processes, machines, manufactures, events, means, methods, and actions described above. Currently existing or later-developed processes, machines, manufactures, events, means, methods, or actions that perform substantially the same function or achieve substantially the same result as the corresponding aspects described herein can be utilized. Therefore, the appended claims include such processes, machines, manufactures, events, means, methods, or actions within their scope.
[0036] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use this disclosure. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of this disclosure. Therefore, this disclosure is not intended to be limited to the aspects shown herein, but rather to be carried out within the widest scope consistent with the principles and novel features disclosed herein.
[0037] The above description has been given for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of this disclosure to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations therein.
Claims
1. A coal conveying device for preventing spillage in underground coal mines, characterized in that, The system includes a conveyor frame (1), on which a conveyor belt (4) is provided. A material feeding box (7) is provided above one end of the conveyor frame (1). A speed limiting box (8) is provided at the lower end of the material feeding box (7). A material passing channel (9) is provided on the speed limiting box (8). The material passing channel (9) passes through the speed limiting box (8). The inlet end of the material passing channel (9) is connected to the outlet end of the material feeding box (7). The outlet end of the material passing channel (9) is located directly above the conveyor belt (4). The speed limiting box (8) is provided with a feeding component and a speed regulating component.
2. The anti-spillage coal conveying device for underground coal mines according to claim 1, characterized in that, The feeding assembly includes a feeding motor (10) and a rotating shaft (11); the feeding motor (10) is fixedly installed on one side of the speed limiting box (8), and the output shaft of the feeding motor (10) is fixedly connected to one end of the rotating shaft (11). The rotating shaft (11) has an arc-shaped groove along the axial direction. There are multiple arc-shaped grooves, and the multiple arc-shaped grooves are evenly arranged along the circumferential direction of the rotating shaft (11). The rotating shaft (11) extends into the material passage (9) and is rotatably connected to the speed limiting box (8). The speed regulating assembly can adjust the size of the arc-shaped groove on the rotating shaft (11) to change the contact surface between the arc-shaped groove and the coal.
3. The anti-spillage coal conveying device for underground coal mines according to claim 2, characterized in that, The speed regulating assembly includes a locking shaft (12), a connecting plate (14), a seated bearing (13), a threaded rod (17), and a guide rod (15). The locking shaft (12) is composed of multiple locking strips spliced together, and each locking strip corresponds to one of the arc-shaped grooves. The locking strips are slidably installed in the corresponding arc-shaped grooves. One end of the locking shaft (12) passes through the speed limiter box (8) and is fixedly connected to the connecting plate (14) through the seated bearing (13). The locking shaft (12) is rotatably connected to the speed limiter box (8). The threaded rod (17) is rotatably installed in the speed limiter box (8) and is parallel to the rotating shaft (11). One end of the threaded rod (17) extends out of the speed limiter box (8) and is rotatably connected to the connecting plate (14). The guide rod (15) is slidably connected to the speed limiter box (8) and is parallel to the threaded rod (17). The guide rod (15) is fixedly connected to the connecting plate (14).
4. The anti-spillage coal conveying device for underground coal mines according to claim 2, characterized in that, The axis of the rotating shaft (11) is perpendicular to the center line of the material passage (9); the two ends of the material passage (9) are rectangular, and the middle part of the material passage (9) has arc-shaped surfaces on opposite sides, and the two arc-shaped surfaces form a receiving channel (19); the rotating shaft (11) is located inside the receiving channel (19).
5. The anti-spillage coal conveying device for underground coal mines according to claim 3, characterized in that, The seated bearing (13) is fixedly installed in the middle of the connecting plate (14); the guide rod (15) and the threaded rod (17) are located on both sides of the seated bearing (13).
6. The anti-spillage coal conveying device for underground coal mines according to claim 5, characterized in that, A fixing nut (16) is provided at the connection between the speed limiter (8) and the threaded rod (17).
7. The anti-spillage coal conveying device for underground coal mines according to claim 6, characterized in that, An adjusting turntable (18) is fixedly installed at the end of the threaded rod (17) away from the speed limiter (8).
8. The anti-spillage coal conveying device for underground coal mines according to claim 1, characterized in that, The bottom of the conveyor frame (1) is fixed with symmetrical support legs (2); conveyor rollers (3) are erected between the conveyor frames (1); the conveyor belt (4) is set outside the conveyor rollers (3); one end of the conveyor roller (3) at the end is connected to a conveyor motor (5) with a speed reducer.
9. The anti-spillage coal conveying device for underground coal mines according to claim 1, characterized in that, The cross-section of the conveying box (7) is rectangular.
10. The anti-spillage coal conveying device for underground coal mines according to claim 1, characterized in that, The material conveying box (7) is fixedly connected to the speed limiting box (8). The lower end of the material conveying box (7) is provided with a discharge port, and the shape of the discharge port is the same as the shape of the feed end of the material passage (9).