Coal mine underground belt conveyor

Abstract

The application provides a coal mine underground belt conveyor, which comprises a first conveying device, a second conveying device, two driving mechanisms, a pressing assembly, a plurality of auxiliary mechanisms and a plurality of supporting mechanisms, wherein the second conveying device is movably arranged on the inner side of the first conveying device; the two driving mechanisms are symmetrically arranged on the two sides of the first conveying device and the second conveying device; the pressing assembly is installed on the inner side of the second conveying device; the plurality of auxiliary mechanisms are arranged in the first conveying device; and the plurality of supporting mechanisms are arranged at the bottoms of the first conveying device and the second conveying device respectively and are used for supporting, fixing and moving the belt conveyor. The coal mine underground belt conveyor provided by the application can not only maintain the integrity of the conveying belt and ensure the service life of the conveying belt, but also can save more manpower and material resources, thereby improving the work efficiency of workers.

Description

Technical Field

[0001] This application relates to the field of belt conveyor technology, and more particularly to an underground belt conveyor for coal mines. Background Technology

[0002] Belt conveyors have advantages such as long distance, large capacity, continuous conveying, reliable operation, and easy automation. They are the most important bulk material conveying equipment in modern times and are widely used in mining, ports, steel, chemical and other industrial fields.

[0003] Belt conveyors have become key equipment in underground coal mining, as well as continuous and semi-continuous mining in open-pit mines.

[0004] With the continuous improvement of the mechanization level of coal mines and the continuous extension of underground coal mining faces, the use of high-power, high-speed, and large-angle telescopic belt conveyors is becoming more and more frequent.

[0005] Currently, when a belt conveyor extends or retracts, the conveyor belt is usually cut off, and the excess conveyor belt is collected and transported to the outside using a winding device. This process not only damages the integrity of the conveyor belt and reduces its service life, but also consumes a lot of manpower and resources, thereby reducing the work efficiency of workers. Summary of the Invention

[0006] This application aims to at least partially solve one of the technical problems in the aforementioned technologies.

[0007] Therefore, one objective of this application is to provide a belt conveyor for underground coal mines that can not only maintain the integrity of the conveyor belt and ensure its service life, but also save a lot of manpower and material resources, thereby improving the work efficiency of workers.

[0008] To achieve the above objectives, a first aspect of this application provides a belt conveyor for underground coal mines, comprising a first conveying device, a second conveying device, two drive mechanisms, a clamping assembly, multiple auxiliary mechanisms, and multiple support mechanisms. The second conveying device is movably disposed inside the first conveying device. The two drive mechanisms are symmetrically disposed on both sides of the first and second conveying devices, and are used to change the relative position between the first and second conveying devices to adapt to various working needs. The clamping assembly is installed inside the second conveying device, and is used to tension the conveyor belt and change the length of the conveyor belt as the relative position of the first and second conveying devices changes. The multiple auxiliary mechanisms are disposed inside the first conveying device, and are used to change the relative position between multiple conveying rollers on the first conveying device. The multiple support mechanisms are respectively disposed at the bottom of the first and second conveying devices, and are used to support, fix, and move the belt conveyor.

[0009] The coal mine underground belt conveyor of this application embodiment drives the second conveying device to move into the interior of the first conveying device through the drive mechanism. At the same time, the clamping component stores the conveyor belt inside the second conveying device, avoiding damage to the integrity of the conveyor belt when the belt conveyor extends or retracts, ensuring the service life of the conveyor belt, saving more manpower and material resources, thereby improving the work efficiency of workers. In addition, the clamping component can also play the role of tensioning the conveyor belt.

[0010] In addition, the underground belt conveyor for coal mines proposed according to the above embodiments of this application may also have the following additional technical features:

[0011] In one embodiment of this application, the driving mechanism includes a plurality of teeth, a servo motor, and a gear, wherein two grooves are symmetrically formed on both sides of the second conveying device; the plurality of teeth are disposed in the grooves; the servo motor is disposed on the first conveying device, and the gear is disposed at one end of the output shaft of the servo motor, and the gear meshes with the teeth.

[0012] In one embodiment of this application, the clamping assembly includes two sets of moving devices and a rod, wherein the two sets of moving devices are symmetrically installed inside the second conveying device, the moving devices are used to change the position of the rod, the rod is rotatably disposed between the two sets of moving devices, and the outer wall of the rod is in contact with the conveyor belts of the first conveying device and the second conveying device.

[0013] In one embodiment of this application, the moving device includes an electric slide table and a slide base, wherein the electric slide table is disposed inside the second conveying device, the slide base is movably disposed on the electric slide table, and one end of the rod is rotatably connected to the slide base.

[0014] In one embodiment of this application, the auxiliary mechanism includes a driving device, a plurality of movable blocks, and a screw. The first conveying device has a plurality of first grooves on its inner side, and the plurality of movable blocks are disposed within the first grooves. The driving device is mounted on the first conveying device. The screw is located within the first groove, one end of the screw is connected to the driving device, and the other end of the screw is rotatably connected to one of the movable blocks. The screw is threadedly connected to the plurality of movable blocks.

[0015] In one embodiment of this application, two baffles are symmetrically provided on the first conveying device and the second conveying device, respectively.

[0016] In one embodiment of this application, the first conveying device is provided with a control device, and the driving mechanism, the pressing assembly, the auxiliary mechanism and the support mechanism are respectively connected to the control device.

[0017] In one embodiment of this application, two guide rods are symmetrically arranged on the inner side of the first conveying device, and two guide grooves are symmetrically opened on the outer side of the second conveying device, with the guide rods slidably disposed in the guide grooves.

[0018] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0020] Figure 1 This is a schematic diagram of a coal mine underground belt conveyor according to an embodiment of this application;

[0021] Figure 2 This is a schematic diagram of an auxiliary mechanism for an underground belt conveyor in a coal mine according to an embodiment of this application;

[0022] Figure 3 This is a schematic diagram of a partial structure of an underground belt conveyor in a coal mine according to an embodiment of this application;

[0023] Figure 4 This is a schematic diagram of a partial structure of an underground belt conveyor in a coal mine according to another embodiment of this application;

[0024] Figure 5 This is a schematic diagram of the connection structure of the guide rod and guide groove of an underground belt conveyor in a coal mine according to an embodiment of this application.

[0025] Reference numerals: 1. First conveying device; 2. Second conveying device; 3. Drive mechanism; 30. Groove; 31. Tooth; 32. Servo motor; 33. Gear; 4. Pressing assembly; 41. Moving device; 411. Electric slide table; 412. Slide seat; 42. Rod; 5. Auxiliary mechanism; 50. First groove; 51. Drive device; 52. Moving block; 53. Screw; 6. Support mechanism; 8. Control device; 91. Guide rod; 92. Guide groove; 101. Baffle plate. Detailed Implementation

[0026] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0027] The following describes an embodiment of the coal mine underground belt conveyor with reference to the accompanying drawings.

[0028] The underground belt conveyor provided in this application is mainly used for conveying during the coal mining process. In addition, this device can also be used for conveying bulk materials, such as grain and stone.

[0029] like Figure 1 and Figure 2 As shown, the underground belt conveyor in the coal mine of this application embodiment may include a first conveying device 1, a second conveying device 2, two drive mechanisms 3, a pressing assembly 4, multiple auxiliary mechanisms 5, and multiple support mechanisms 6.

[0030] It should be noted that the first conveying device 1 and the second conveying device 2 described in this embodiment may respectively include a frame (not specifically marked in the figure), multiple rollers (not specifically marked in the figure) and a conveyor belt (not specifically marked in the figure).

[0031] In addition, the support mechanism 6 described in this embodiment may include a support rod (not specifically marked in the figure) and a wheel (not specifically marked in the figure), wherein the wheel has a self-locking mechanism.

[0032] To facilitate the transport of coal and mineral materials, as a possible scenario, the diameters at both ends of multiple rollers are larger than the diameter at the middle, so that the middle of the conveyor belt is concave when transporting coal and mineral materials, thereby preventing coal and mineral materials from spilling onto the outside of the belt conveyor during the transport process.

[0033] The second conveying device 2 is movably disposed inside the first conveying device 1, and two drive mechanisms 3 are symmetrically disposed on both sides of the first conveying device 1 and the second conveying device 2. The drive mechanisms 3 are used to change the relative position between the first conveying device 1 and the second conveying device 2 to adapt to various different work needs.

[0034] It is understood that the various operational requirements described in this embodiment may allow for shortening or stretching of the belt conveyor when the coal mine face changes.

[0035] The clamping assembly 4 is installed inside the second conveying device 2. The clamping assembly 4 is used to tighten the conveyor belt and change the length of the conveyor belt as the relative positions of the first conveying device 1 and the second conveying device 2 change.

[0036] Multiple auxiliary mechanisms 5 are disposed inside the first conveying device 1. The multiple auxiliary mechanisms 5 are used to change the relative positions between multiple conveying rollers on the first conveying device 1. Multiple support mechanisms 6 are respectively disposed at the bottom of the first conveying device 1 and the second conveying device 2. The multiple support mechanisms 6 are used to support, fix and move the belt conveyor.

[0037] It should be noted that the first conveying device 1 described in this embodiment is also equipped with a device for driving the roller shaft to rotate (not shown in the figure). In addition, the belt conveyor is powered by external mains power.

[0038] In one embodiment of this application, a control device 8 is provided on the first conveying device 1, and the drive mechanism 3, the pressing component 4, the auxiliary mechanism 5 and the support mechanism 6 are respectively connected to the control device 8.

[0039] To improve the safety of the belt conveyor during operation, as a possible solution, the control device 8 is equipped with an emergency stop switch and a locking switch.

[0040] To further improve the safety of the belt conveyor during operation, as another possible scenario, the control device 8 described in this embodiment is connected to a ground monitoring device (not shown in the figure), so that ground personnel can know the operating status of the belt conveyor through the monitoring device.

[0041] In one embodiment of this application, such as Figure 1 As shown, the clamping assembly 4 may include two sets of moving devices 41 and a rod 42.

[0042] Two sets of moving devices 41 are symmetrically installed inside the second conveying device 2. The moving devices 41 are used to change the position of the rod 42. The rod 42 is rotatably arranged between the two sets of moving devices 41. The outer wall of the rod 42 is in contact with the conveyor belt of the first conveying device 1 and the second conveying device 2.

[0043] Specifically, in the underground coal mine, the mined coal is transported to the collection bin on the belt conveyor. When the position of the tunneling face changes and the length of the belt conveyor needs to be changed (retracted), firstly, the worker opens the self-locking mechanism of the wheel body on the support mechanism 6 (specifically the second conveying device 2), and the worker presses the first switch of the control device 8 (used to control the drive mechanism 3, the clamping assembly 4 and the auxiliary mechanism 5).

[0044] The two drive mechanisms 3 and the clamping assembly 4 are activated, which in turn drive the second conveying device 2 to move in the direction of the first conveying device 1. The wheel rolls on the ground, and the moving device 41 drives the rod 42 to move. The rod 42 moves in the direction of the first conveying device 1, thus ensuring that the conveyor belt and multiple rollers are in contact while the belt conveyor is retracting.

[0045] At the same time, the auxiliary mechanism 5 drives multiple rollers on the first conveying device 1 to move closer to each other, thereby providing a position for the second conveying device 2. When the second conveying device 2 reaches the predetermined position, the worker presses the stop switch and then closes the self-locking mechanism on the wheel body, thereby ensuring the stability of the belt conveyor during operation.

[0046] When the position of the tunnel face changes again and the length of the belt conveyor needs to be changed (extended), the worker presses the first switch of the control device 8 again. The belt conveyor follows the same steps as above to move the second conveying device 2 away from the first conveying device 1, thereby bringing one end of the belt conveyor closer to the coal mining site.

[0047] In another embodiment of this application, when the belt conveyor has been used for a long time and the conveyor belt becomes loose, it is only necessary to activate the clamping component 4 and the rod 42 to tighten the conveyor belt, thereby preventing the conveyor belt from jumping during transmission and ensuring the stability when transporting coal.

[0048] In addition, during the operation of the belt conveyor, since the rod 42 is located on the outside of the conveyor belt, some coal particles that are stuck to the conveyor belt fall off freely under the interference of the rod 42, so that the rod 42 can also play a role in cleaning the conveyor belt.

[0049] As a possible scenario, the second conveying device 2 is equipped with a position sensor, which is connected to the control device 8, allowing the worker to change the length of the belt conveyor by setting a value, thereby improving the accuracy of the belt conveyor's movement and increasing the worker's work efficiency.

[0050] To broaden the applicability of the belt conveyor, as another possible scenario, a second conveyor 2 can be installed at both ends of the first conveying device 1 described in this embodiment.

[0051] In one embodiment of this application, such as Figure 1 As shown, the drive mechanism 3 may include multiple teeth 31, a servo motor 32, and a gear 33.

[0052] The second conveying device 2 has two symmetrically arranged grooves 30 on both sides; multiple teeth 31 are arranged in the grooves 30; the servo motor 32 is arranged on the first conveying device 1, and the gear 33 is arranged at one end of the output shaft of the servo motor 32, and the gear 33 is meshed with the teeth 31.

[0053] Specifically, when the drive mechanism 3 is started, the servo motor 32 drives the gear 33 to rotate, and the gear 33 meshes with multiple teeth 31, thereby causing relative movement between the second conveying device 2 and the first conveying device 1.

[0054] In one embodiment of this application, such as Figure 4 As shown, the moving device 41 may include an electric slide table 411 and a slide base 412.

[0055] The electric slide table 411 is located inside the second conveying device 2, and the slide block 412 is movably mounted on the electric slide table 411. One end of the rod 42 is rotatably connected to the slide block 412.

[0056] Specifically, when the moving device 41 is running, the slide 412 moves on the electric slide table 411, thereby changing the position of the rod 42 inside the second conveying device 2.

[0057] In one embodiment of this application, such as Figure 2 As shown, the auxiliary mechanism 5 may include a drive device 51, multiple moving blocks 52 and a screw 53.

[0058] The first conveying device 1 has multiple first troughs 50 on its inner side, and multiple moving blocks 52 are disposed in the first troughs 50; the driving device 51 is disposed on the first conveying device 1; the screw 53 is located in the first trough 50, one end of the screw 53 is connected to the driving device 51, and the other end of the screw 53 is rotatably connected to a moving block 52, and the screw 53 is threadedly connected to multiple moving blocks 52.

[0059] It should be noted that, in this embodiment, one movable block 52 is fixed in the first groove 50, while the remaining movable blocks 52 are movably disposed within the first groove 50.

[0060] Specifically, when the auxiliary mechanism 5 is activated, the drive device 51 drives the screw 53 to rotate, and the screw 53 drives multiple moving blocks 52 to move simultaneously, thereby ensuring that the second conveying device can enter smoothly.

[0061] It is understandable that by using multiple moving blocks 52 and screws 53 to be threadedly connected, a self-locking effect can be achieved between the multiple moving blocks 52 and screws 53, thereby preventing the rollers from moving randomly during use and ensuring that the conveyor belt is subjected to uniform force in all parts during transmission.

[0062] Alternatively, the moving device 41 can also be configured as an auxiliary mechanism 5 to achieve the effect of driving the rod 42.

[0063] In one embodiment of this application, such as Figure 3 and Figure 4 As shown, two baffles 101 are symmetrically provided on the first conveying device 1 and the second conveying device 2 respectively.

[0064] It is understandable that during the process of coal being conveyed on the surface of the conveyor belt, the baffle plate 101 can prevent coal from entering the interior of the first conveying device 1 and the second conveying device 2, thereby reducing the failure rate of the belt conveyor.

[0065] In one embodiment of this application, such as Figure 5 As shown, two guide rods 91 are symmetrically arranged on the inner side of the first conveying device 1, and two guide grooves 92 are symmetrically opened on the outer side of the second conveying device 2. The guide rods 91 are slidably arranged in the guide grooves 92.

[0066] Specifically, when there is relative movement between the second conveying device 2 and the first conveying device 1, the guide rod 91 moves inside the guide groove 92, thereby playing a guiding role and ensuring that the second conveying device 2 smoothly enters the interior of the first conveying device 1.

[0067] To improve the guiding effect and increase the stability when the second conveying device 2 enters the first conveying device 1, the number of guide rods 91 can be set to multiple.

[0068] To further reduce the friction between the guide rod 91 and the guide groove 92 and extend the service life of the guide rod 91, as another possible approach, a bearing can be fitted onto the outside of the guide rod 91, thereby changing the sliding friction between the guide rod 91 and the guide groove 92 into rolling friction.

[0069] The coal mine underground belt conveyor of this application embodiment drives the second conveying device to move into the interior of the first conveying device through the drive mechanism. At the same time, the clamping component stores the conveyor belt inside the second conveying device, avoiding damage to the integrity of the conveyor belt when the belt conveyor extends or retracts, ensuring the service life of the conveyor belt, saving more manpower and material resources, thereby improving the work efficiency of workers. In addition, the clamping component can also play the role of tensioning the conveyor belt.

[0070] In summary, the underground belt conveyor of this application not only maintains the integrity of the conveyor belt and ensures its service life, but also saves a lot of manpower and material resources, thereby improving the work efficiency of workers.

[0071] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0072] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0073] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A belt conveyor for underground coal mines, characterized in that, It includes a first conveying device, a second conveying device, two drive mechanisms, a pressing assembly, multiple auxiliary mechanisms, and multiple support mechanisms, wherein, The second conveying device is movably disposed inside the first conveying device; The two drive mechanisms are symmetrically arranged on both sides of the first conveying device and the second conveying device. The drive mechanisms are used to change the relative position between the first conveying device and the second conveying device to adapt to various different working needs. The clamping assembly is installed inside the second conveying device. The clamping assembly is used to tighten the conveyor belt and change the length of the conveyor belt as the relative positions of the first conveying device and the second conveying device change. Multiple auxiliary mechanisms are disposed inside the first conveying device, and the multiple auxiliary mechanisms are used to change the relative positions between multiple conveying rollers on the first conveying device; Multiple support mechanisms are respectively installed at the bottom of the first conveying device and the second conveying device, and the multiple support mechanisms are used to support, fix and move the belt conveyor; The auxiliary mechanism includes a drive unit, multiple moving blocks, and a screw, wherein, The first conveying device has multiple first grooves on its inner side, and multiple moving blocks are disposed in the first grooves; The drive device is mounted on the first conveying device; The screw is located in the first groove, one end of the screw is connected to the driving device, the other end of the screw is rotatably connected to one of the moving blocks, and the screw is threadedly connected to multiple of the moving blocks; The moving block and the conveying roller are connected accordingly, and the movement of the conveying rollers away from or towards each other is controlled to provide position to the second conveying device.

2. The underground belt conveyor in a coal mine according to claim 1, characterized in that, The drive mechanism includes multiple teeth, a servo motor, and gears, wherein, The second conveying device has two symmetrical grooves on both sides; Multiple teeth are disposed within the groove; The servo motor is mounted on the first conveying device, and the gear is mounted on one end of the output shaft of the servo motor, and the gear meshes with the teeth.

3. The underground belt conveyor in a coal mine according to claim 1, characterized in that, The clamping assembly includes two sets of moving devices and a rod, wherein... Two sets of the aforementioned moving devices are symmetrically installed inside the second conveying device. The moving devices are used to change the position of the rod. The rod is rotatably disposed between the two sets of the moving devices, and the outer wall of the rod is in contact with the conveyor belts of the first conveying device and the second conveying device.

4. The underground belt conveyor in a coal mine according to claim 3, characterized in that, The moving device includes an electric slide table and a slide base, wherein... The electric slide is located inside the second conveying device, the slide block is movably mounted on the electric slide, and one end of the rod is rotatably connected to the slide block.

5. The underground belt conveyor in a coal mine according to claim 1, characterized in that, The first conveying device and the second conveying device are each symmetrically provided with two baffles.

6. The underground belt conveyor for coal mines according to claim 1, characterized in that, The first conveying device is equipped with a control device, and the drive mechanism, the pressing component, the auxiliary mechanism and the support mechanism are respectively connected to the control device.

7. The underground belt conveyor in a coal mine according to claim 1, characterized in that, The first conveying device has two guide rods symmetrically arranged on its inner side, and the second conveying device has two guide grooves symmetrically opened on its outer side, with the guide rods slidably arranged in the guide grooves.

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