Enclosed conveying device for dust and slag from tunneling and anchoring machines

Abstract

This utility model relates to the field of dust and waste conveying technology, and in particular to a closed conveying device for dust and waste from roadheaders and anchorers. It includes a conveying frame, a conveying component, and multiple idlers. The conveying frame has two first conveying rollers symmetrically and rotatably connected to its inner wall. The conveying component includes a conveyor belt tensioned and sleeved on the two first conveying rollers. The working surface of the conveyor belt has a V-shaped conveying groove along its width. Multiple idlers are arranged at intervals along the conveying direction within the conveying frame and are rotatably connected to the inner wall of the conveying frame. In this utility model, the V-shaped conveying groove on the working surface of the conveyor belt effectively constrains the waste, preventing it from dispersing during conveying, reducing the exposed area of ​​the waste, and lowering the possibility of dust generation. The idlers provide linear support to the conveyor belt, ensuring stable operation and preventing waste from scattering due to belt swaying, thus improving the stability and reliability of the conveying process.

Description

Technical Field

[0001] This utility model relates to the field of dust and waste conveying technology, and more specifically, to a closed conveying device for dust and waste from a tunneling and anchoring machine. Background Technology

[0002] With the development of the mining industry, roadheader-and-railer (TBR) machines have been widely used in tunnel construction due to their efficient integrated tunneling and support capabilities. However, TBR machines generate a large amount of dust and slag during operation. Therefore, efficiently and environmentally friendly transportation of this dust and slag is crucial for ensuring safe production and a healthy working environment.

[0003] The conveyor belts of most existing tunneling and anchoring machines equipped with dust and slag conveying devices have flat surfaces and lack effective restraint on the slag. The slag is easily dispersed on the conveyor belt due to vibration and bumps. The excessive dispersion of the slag not only leads to a significant increase in the area exposed to the air, but also easily causes a large amount of dust to be generated during the conveying process due to factors such as airflow and mechanical vibration generated by the operation of the equipment. Utility Model Content

[0004] Based on the aforementioned technical problem that "the conveyor belt surface of most existing dust and slag conveying devices equipped with roadheaders is flat and lacks effective restraint on the slag, which is easily dispersed on the conveyor belt due to vibration and bumps. The excessive dispersion of the slag not only leads to a significant increase in its exposed area in the air, but also easily causes a large amount of dust during the conveying process due to factors such as airflow and mechanical vibration generated by the equipment operation," this utility model proposes a closed conveying device for roadheader dust and slag.

[0005] This utility model proposes a closed conveying device for dust and slag from a tunneling and anchoring machine, which includes a conveying frame, conveying components and multiple idlers;

[0006] The conveyor frame has two first conveyor rollers symmetrically and rotatably connected to its inner wall;

[0007] The conveying component includes a conveyor belt tensioned and sleeved on two first conveying rollers, and the working surface of the conveyor belt has a V-shaped conveying groove along its width direction;

[0008] Multiple idlers are arranged at intervals along the conveying direction within the conveyor frame and are rotatably connected to the inner wall of the conveyor frame. The roller surface of the idlers contacts the top surface of the inner ring of the conveyor belt to form linear support.

[0009] Preferably, a base is fixedly connected to the outer wall of the conveyor frame, a stepper motor is fixedly connected to the top of the base, and the output end of the stepper motor is fixedly connected to the first conveyor roller.

[0010] Preferably, the inner wall of the conveyor frame is rotatably connected to two second conveyor rollers, the second conveyor rollers are in contact with the outer wall of the conveyor belt, and gears are fixedly connected to the ends of both the second conveyor rollers and the first conveyor rollers, and the two gears mesh with each other.

[0011] Preferably, the second conveying roller includes a conveying shaft and a conveying sleeve, the end of the conveying shaft passes through the conveying sleeve and is fixedly connected to it, and the diameter of the conveying sleeve decreases from the middle to both ends.

[0012] Preferably, the two ends of the conveying sleeve extend outward to form an extension sleeve, and the two sides of the conveyor belt extend outward to form an extension belt. The outer circumferential wall of the extension sleeve is in frictional contact with the outer ring wall of the extension belt.

[0013] Preferably, the first conveying roller includes a connecting shaft, and a support sleeve is fixedly connected to the outer circumference of the connecting shaft, the diameter of the support sleeve decreasing from both ends to the middle.

[0014] Preferably, the support sleeve extends outward at both ends to form connecting sleeves, and the connecting sleeves extend to the extension band and rub against its inner wall.

[0015] Preferably, the outer wall of the idler roller is provided with a bonding groove, and the diameter of the bonding groove decreases from both ends of the idler roller towards the middle.

[0016] Preferably, a dust cover is fixedly connected to the top of the conveyor frame, a water supply pipe is fixedly connected to the top of the dust cover, and multiple atomizing nozzles are fixedly connected to the outer wall of the water supply pipe, with the spraying ends of the atomizing nozzles extending below the dust cover.

[0017] The beneficial effects of this utility model, achieved through the above technical solution, are as follows:

[0018] 1. In this device, the V-shaped conveying groove on the working surface of the conveyor belt can effectively constrain the waste residue, making it less likely to disperse during the conveying process, reducing the exposed area of ​​the waste residue, and reducing the possibility of dust generation; the idler rollers provide linear support to the conveyor belt, ensuring the smooth operation of the conveyor belt, preventing the waste residue from scattering due to the shaking of the conveyor belt, and improving the stability and reliability of the conveying.

[0019] 2. The second conveyor roller is driven by gear meshing with the first conveyor roller, which can clamp and convey the conveyor belt, preventing the conveyor belt from slipping under pressure.

[0020] 3. The design of the conveyor sleeve in the second conveyor roller with the diameter decreasing from the middle to both ends, in conjunction with the extension belts on both sides of the conveyor belt, can apply a certain tension to the conveyor belt, keep the conveyor belt taut during operation, prevent the conveyor belt from loosening and slipping, and improve the working stability of the conveying device. Attached Figure Description

[0021] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a partial structural schematic diagram of the present invention;

[0023] Figure 3 This is a schematic diagram of the installation structure of the idler roller of this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the conveying component of this utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the second conveying roller of this utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the first conveying roller of this utility model;

[0027] Figure 7 This is a schematic diagram of the structure of the idler roller of this utility model.

[0028] In the diagram: 1. Conveyor frame; 2. Base; 3. Stepper motor; 4. First conveyor roller; 401. Support sleeve; 402. Connecting sleeve; 403. Connecting shaft; 5. Second conveyor roller; 501. Conveyor sleeve; 502. Extension sleeve; 503. Conveyor shaft; 6. Gear; 7. Conveyor component; 701. Conveyor belt; 702. Conveyor trough; 703. Extension belt; 8. Idler roller; 801. Bonding groove; 9. Dust cover; 10. Water supply pipe; 11. Atomizing nozzle. Detailed Implementation

[0029] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model. In this utility model, unless otherwise expressly specified and limited, the term "fixed connection" should be interpreted broadly. For example, "fixed connection" can mean fixed installation, detachable connection, or integral; it can mean mechanical connection or electrical connection; it can mean direct connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a closed conveying device for dust and slag from a roadheader includes a conveying frame 1, a conveying component 7, and multiple idlers 8.

[0031] The inner wall of the conveyor frame 1 is symmetrically and rotatably connected to two first conveyor rollers 4;

[0032] The conveying component 7 includes a conveyor belt 701 tensioned and sleeved on two first conveying rollers 4, and the working surface of the conveyor belt 701 is provided with a V-shaped conveying groove 702 along its width direction;

[0033] Multiple idlers 8 are arranged at intervals in the conveyor frame 1 along the conveying direction and are rotatably connected to the inner wall of the conveyor frame 1. The roller surface of the idlers 8 contacts the top surface of the inner ring of the conveyor belt 701 to form linear support.

[0034] The V-shaped conveying groove 702 on the working surface of the conveyor belt 701 can effectively constrain the waste residue, making it less likely to disperse during the conveying process, reducing the exposed area of ​​the waste residue, and reducing the possibility of dust generation; the idler roller 8 forms linear support for the conveyor belt 701, ensuring the smooth operation of the conveyor belt 701, avoiding the scattering of waste residue due to the shaking of the conveyor belt, and improving the stability and reliability of the conveying.

[0035] In this embodiment, as Figure 1 As shown, a base 2 is fixedly connected to the outer wall of the conveyor frame 1, and a stepper motor 3 is fixedly connected to the top of the base 2. The output end of the stepper motor 3 is fixedly connected to the first conveyor roller 4.

[0036] The output end of the stepper motor 3 is fixedly connected to the first conveyor roller 4, which can control the speed and direction of rotation of the first conveyor roller 4, thereby controlling the running speed of the conveyor belt 701.

[0037] In this embodiment, as Figure 2 As shown, two second conveying rollers 5 are rotatably connected to the inner wall of the conveyor frame 1. The second conveying rollers 5 are in contact with the outer wall of the conveyor belt 701. Gears 6 are fixedly connected to the ends of both the second conveying rollers 5 and the first conveying rollers 4, and the two gears 6 mesh with each other.

[0038] The second conveyor roller 5 is driven by the first conveyor roller 4 through the meshing of the gear 6, which can clamp and convey the conveyor belt 701, preventing the conveyor belt 701 from slipping under pressure.

[0039] In this embodiment, as Figure 5 As shown, the second conveying roller 5 includes a conveying shaft 503 and a conveying sleeve 501. The end of the conveying shaft 503 passes through the conveying sleeve 501 and is fixedly connected to it. The diameter of the conveying sleeve 501 decreases from the middle to both ends.

[0040] The design of the conveyor sleeve 501 in the second conveyor roller 5, with its diameter decreasing from the middle to both ends, works in conjunction with the extension belts 703 on both sides of the conveyor belt 701 to apply a certain tension to the conveyor belt 701, keeping the conveyor belt 701 taut during operation, preventing the conveyor belt 701 from slackening and slipping, and improving the working stability of the conveying device.

[0041] In this embodiment, as Figure 4 and Figure 5As shown, the two ends of the conveyor sleeve 501 extend outward to form the extension sleeve 502, and the two sides of the conveyor belt 701 extend outward to form the extension belt 703. The outer circumferential wall of the extension sleeve 502 and the outer ring wall of the extension belt 703 are in frictional contact.

[0042] The frictional contact between the extension sleeve 502 and the extension belt 703 further enhances the tensioning and guiding effect on the conveyor belt 701. When the conveyor belt 701 is running, the extension sleeve 502 can restrict the movement of the extension belt 703, ensuring the stability of the running trajectory of the conveyor belt 701 and preventing the conveyor belt 701 from deviating during the conveying of waste residue.

[0043] In this embodiment, as Figure 6 As shown, the first conveying roller 4 includes a connecting shaft 403, and a support sleeve 401 is fixedly connected to the outer circumference of the connecting shaft 403. The diameter of the support sleeve 401 decreases from both ends to the middle.

[0044] The support sleeve 401 of the first conveying roller 4 decreases in diameter from both ends to the middle, and works in conjunction with the structure of the second conveying roller 5 to act on the conveyor belt 701, so that the conveyor belt 701 always maintains good tension and stability during operation.

[0045] In this embodiment, as Figure 4 and Figure 6 As shown, the support sleeve 401 extends outward at both ends to form a connecting sleeve 402, and the connecting sleeve 402 extends to the extension band 703 and rubs against its inner wall.

[0046] The connecting sleeve 402 makes frictional contact with the inner wall of the extension belt 703, further strengthening the support and guidance of the conveyor belt 701.

[0047] In this embodiment, as Figure 7 As shown, the outer wall of the idler roller 8 is provided with a bonding groove 801, and the diameter of the bonding groove 801 decreases from both ends of the idler roller 8 towards the middle.

[0048] The fitting groove 801 is adapted to the shape of the inner ring of the conveyor belt 701, which can better fit the conveyor belt 701 and enhance the support effect of the conveyor belt 701.

[0049] In this embodiment, as Figure 1 As shown, a dust cover 9 is fixedly connected to the top of the conveyor frame 1, a water supply pipe 10 is fixedly connected to the top of the dust cover 9, and multiple atomizing nozzles 11 are fixedly connected to the outer wall of the water supply pipe 10. The water spraying ends of the atomizing nozzles 11 all extend to the bottom of the dust cover 9.

[0050] The water mist sprayed from the atomizing nozzle 11 can adsorb the dust generated during the conveying process. After the dust particles combine with the water mist, their weight increases and they settle onto the conveyor belt, thereby achieving the purpose of dust reduction.

[0051] Working principle: When the stepper motor 3 is started, the stepper motor 3 outputs power to drive the first conveyor roller 4, which is fixedly connected to it, to rotate. The gear 6 at the end of the first conveyor roller 4 meshes with the gear 6 at the end of the second conveyor roller 5, thereby driving the second conveyor roller 5 to rotate, so that the conveyor belt 701 runs in a cycle.

[0052] During the operation of conveyor belt 701, idler roller 8 provides linear support for conveyor belt 701 to ensure its smooth operation.

[0053] The dust and slag generated by the tunneling and anchoring machine are placed in the V-shaped conveying trough 702 on the working face of the conveyor belt 701. The V-shaped structure constrains the slag, making it less likely to disperse due to vibration and bumps.

[0054] As the conveyor belt 701 operates, the extension belts 703 on both sides rub against the inner wall of the connecting sleeve 402 of the first conveyor roller 4 and the outer wall of the extension sleeve 502 of the second conveyor roller 5, respectively, ensuring the stability and tension of the conveyor belt 701 during operation. At the same time, the bonding groove 801 on the outer wall of the idler roller 8 fits against the inner ring of the conveyor belt 701, further enhancing the smoothness of the conveyor belt 701 during operation.

[0055] During the transportation process, the atomizing nozzle 11 on the water supply pipe 10 sprays water mist below the dust cover 9. The water mist combines with the dust generated during the transportation process to achieve the purpose of dust reduction and effectively suppress dust generation.

[0056] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A dust and waste residue closed conveying device of a rock drill rig, characterized in that include: The conveyor frame (1) has two first conveyor rollers (4) symmetrically rotated on its inner wall. The conveying component (7) includes a conveyor belt (701) tensioned and sleeved on two first conveying rollers (4), and the working surface of the conveyor belt (701) is provided with a V-shaped conveying groove (702) along its width direction. Multiple idlers (8) are arranged at intervals in the conveyor frame (1) along the conveying direction and are rotatably connected to the inner wall of the conveyor frame (1). The roller surface of the idlers (8) contacts the top surface of the inner ring of the conveyor belt (701) to form linear support.

2. The closed-loop conveying device for dust and slag from a roadheader as described in claim 1, characterized in that: The outer wall of the conveyor frame (1) is fixedly connected to the base (2), and the top of the base (2) is fixedly connected to the stepper motor (3). The output end of the stepper motor (3) is fixedly connected to the first conveyor roller (4).

3. The closed-loop conveying device for dust and slag from a roadheader as described in claim 2, characterized in that: The inner wall of the conveyor frame (1) is rotatably connected to two second conveyor rollers (5). The second conveyor rollers (5) are in contact with the outer wall of the conveyor belt (701). The ends of the second conveyor rollers (5) and the first conveyor rollers (4) are fixedly connected to gears (6), and the two gears (6) mesh with each other.

4. The closed-loop conveying device for dust and slag from a roadheader as described in claim 3, characterized in that: The second conveying roller (5) includes a conveying shaft (503) and a conveying sleeve (501). The end of the conveying shaft (503) passes through the conveying sleeve (501) and is fixedly connected to it. The diameter of the conveying sleeve (501) decreases from the middle to both ends.

5. The closed-loop conveying device for dust and slag from a roadheader as described in claim 4, characterized in that: The conveying sleeve (501) extends outward at both ends to form an extension sleeve (502), and the conveyor belt (701) extends outward on both sides to form an extension belt (703). The outer circumferential wall of the extension sleeve (502) and the outer ring wall of the extension belt (703) are in frictional contact.

6. The closed-loop conveying device for dust and slag from a roadheader as described in claim 5, characterized in that: The first conveying roller (4) includes a connecting shaft (403), and a support sleeve (401) is fixedly connected to the outer circumference of the connecting shaft (403). The diameter of the support sleeve (401) decreases from both ends to the middle.

7. The enclosed conveying device for dust and slag from a roadheader as described in claim 6, characterized in that: The support sleeve (401) extends outward at both ends to form connecting sleeves (402), and the connecting sleeves (402) extend to the extension band (703) and rub against its inner wall.

8. The closed-loop conveying device for dust and slag from a roadheader as described in claim 7, characterized in that: The outer wall of the roller (8) is provided with a bonding groove (801), and the diameter of the bonding groove (801) decreases from both ends of the roller (8) towards the middle.

9. The closed-loop conveying device for dust and slag from a roadheader as described in claim 8, characterized in that: The top of the conveyor frame (1) is fixedly connected to a dust cover (9), the top of the dust cover (9) is fixedly connected to a water supply pipe (10), and the outer wall of the water supply pipe (10) is fixedly connected to multiple atomizing nozzles (11). The water spraying ends of the atomizing nozzles (11) all extend to the bottom of the dust cover (9).

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