Air duct changing structure of dust removal fan

Abstract

The utility model belongs to the field of fully-mechanized excavating machines, particularly relates to an air duct diversion structure of a dust removal fan, and aims to solve the problems of insufficient head-on air volume and waste caused by direct suction of a part of fresh air flow into the fan for filtration due to the fact that an air suction opening of the fan and an air outlet of an air duct of the conventional fully-mechanized excavating machine are in the same range. The utility model discloses a fully-mechanized coal winning machine which comprises a fully-mechanized coal winning machine body, a fan is arranged on one side of the top of the fully-mechanized coal winning machine body, an air inlet of the fan is fixedly communicated with an air duct cylinder, and an air inlet of the air duct cylinder and an air outlet of the fan are respectively located on two sides of the top of the fully-mechanized coal winning machine body. According to the filter plate, the filter plate is arranged, so that the filtered air is prevented from being sucked again for unnecessary secondary filtering, the filtering efficiency is remarkably improved, the design of the arc-shaped plate is combined with a positioning rod, a fixing strip and a second tension spring, the stability of the filter plate in the dismounting process is ensured, and meanwhile, the filter plate can be conveniently and rapidly reset after being cleaned.

Description

Technical Field

[0001] This utility model relates to the field of tunnel boring machine technology, and in particular to a dust removal fan duct relocation structure. Background Technology

[0002] A tunneling machine, short for a fully mechanized tunneling machine, is a type of integrated mechanized equipment that combines multiple functions such as tunneling, rock loading, coal transportation, and even support and track laying. Generally, after using fully mechanized tunneling, the tunneling progress can be increased by more than 30 times compared to the drilling and blasting tunneling process.

[0003] In the past, the wet dust collectors installed on roadheaders were initially positioned on the right side of the machine head (the upper right side of the roadheader body) by the manufacturer. Moreover, the standard ventilation ducts were also installed on the same side on site. This resulted in the air intake of the fan and the air outlet of the ventilation duct being in the same area, which easily caused insufficient air volume at the machine head and a portion of the fresh air flow to be directly sucked into the fan for filtration and wasted. Summary of the Invention

[0004] The purpose of this utility model is to solve the problem that in the existing technology, the ventilation duct of the tunnel boring machine is also installed on the same side, which causes the air inlet of the fan and the air outlet of the ventilation duct to be in the same range, which easily leads to insufficient head-on air volume and waste of some fresh air flow by directly sucking it into the fan for filtration. Therefore, a dust removal fan duct relocation structure is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A dust removal fan duct rerouting structure includes a roadheader body, a fan is provided on one side of the top of the roadheader body, the air inlet of the fan is fixedly connected to a duct, the air inlet of the duct and the air outlet of the fan are respectively located on the top sides of the roadheader body, and the duct is fixedly installed on the top of the roadheader body by an installation component.

[0007] An arc-shaped plate slides through the inside of the air duct. One end of the arc-shaped plate is fixedly connected to a limiting inner ring, which is located inside the air duct. The other end of the arc-shaped plate is fixedly connected to a limiting outer ring, which is located outside the air duct. Multiple filter plates are arranged inside the arc-shaped plate. A limiting component for limiting the arc-shaped plate is arranged inside the air duct.

[0008] One side of the air duct is provided with a fixing component for fixing the limiting outer ring.

[0009] In one possible design, the mounting assembly includes two mounting plates disposed on the top of the roadheader body. The mounting plates have circular holes inside that cooperate with the ventilation duct. Both sides of the mounting plates are integrally formed with ear plates, and the ear plates are provided with fixing screws. The roadheader body and the mounting plates are fixedly connected by fixing screws.

[0010] In one possible design, the limiting component includes multiple placement slots formed inside the arc-shaped plate, which cooperate with the filter plate. The top and bottom inner walls of the arc-shaped plate are provided with strip grooves. The top and bottom of the limiting inner ring are provided with a first groove. The top and bottom of the filter plate are provided with a second groove. The top and bottom inner walls of the air duct are fixedly connected with fixing strips, which cooperate with the strip grooves, the first groove, and the second groove.

[0011] In one possible design, the limiting component also includes the same retaining ring fixedly connected to one end of the two retaining bars.

[0012] In one possible design, the fixing assembly includes an L-shaped plate fixedly connected to one side of the duct, with a rod slidingly passing through the interior of the L-shaped plate. One end of the rod is fixedly connected to a pull plate, and a first tension spring is fixedly connected between one side of the pull plate and one side of the L-shaped plate. The first tension spring is sleeved on the rod. A first slot is provided on one side of the arc-shaped plate, and a second slot is provided on one side of the limiting outer ring. Both the second slot and the first slot engage with the rod. An operating plate is fixedly connected to one side of the limiting outer ring.

[0013] In one possible design, the interior of the air duct has two symmetrically arranged transverse grooves, and one side of the limiting outer ring is fixedly connected to two symmetrically arranged positioning rods. The positioning rods are slidably connected inside the transverse grooves, and one end of the positioning rod is fixedly connected to the same second tension spring between it and one side of the inner wall of the transverse groove.

[0014] In this application, when in use, the fan is turned on, and the fan draws in air through the limiting outer ring. After being filtered by multiple filter plates, the air is discharged through one side of the fan. At this time, the positions of the air inlet and outlet can be changed, thereby avoiding the re-drawing in of fresh air for filtration and improving the filtration efficiency of the device.

[0015] After filtering for a period of time, you can consider disassembling and cleaning multiple filter plates. At this time, first pull the pull plate horizontally. The pull plate drives the insert rod to move horizontally and stretches the first tension spring. At this time, the insert rod moves out from the inside of the second slot. Pull out the limiting outer ring horizontally. Then, lock the insert rod inside the first slot to prevent the arc plate from springing back.

[0016] Thanks to the positioning rod and fixing bar, the arc-shaped plate can be prevented from detaching. The second tension spring facilitates quick rebound of the device. At this point, multiple filter plates are exposed on one side of the arc-shaped plate, allowing them to be removed laterally for cleaning. After cleaning, the second groove on the top of the filter plate is aligned with the strip groove and placed on the same horizontal line as the first groove. After releasing the brake on the arc-shaped plate, the limiting outer ring and the arc-shaped plate quickly retract under the tension of the second tension spring, allowing for reuse.

[0017] Beneficial effects:

[0018] High-efficiency filtration system: The device draws in air by activating a fan, which guides the air through a limiting outer ring and then filters it through multiple filter plates. This design effectively removes impurities from the air, providing clean air output.

[0019] The fan design allows for adjustment of the inlet and outlet positions, thus preventing filtered air from being re-inhaled for unnecessary secondary filtration and significantly improving filtration efficiency.

[0020] Easy-to-maintain design: The device features a removable filter plate system, making it easy for users to clean and maintain. The filter plates can be easily removed, cleaned, and reinstalled without a complicated disassembly process.

[0021] The system utilizes a mechanical structure including a pull plate, insert rod, and a first tension spring to enable rapid switching between fixing and releasing the filter plates. Users can easily disassemble the filter plates by simply pulling the pull plate. The arc-shaped plate design, combined with a positioning rod, fixing strip, and second tension spring, ensures the stability of the filter plates during disassembly and facilitates quick repositioning after cleaning. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of a dust removal fan duct relocation structure proposed in this utility model.

[0023] Figure 2 This is a three-dimensional cross-sectional view of the duct cylinder of a dust removal fan duct relocation structure proposed in this utility model.

[0024] Figure 3 This is a three-dimensional structural diagram of the duct cylinder and the arc plate in the dust removal fan duct relocation structure proposed in this utility model;

[0025] Figure 4 This is a three-dimensional structural diagram of the limiting outer ring and limiting inner ring in the dust collector fan duct rerouting structure proposed in this utility model;

[0026] Figure 5 This is a three-dimensional structural diagram of the fixing ring and filter plate in the dust removal fan duct rerouting structure proposed in this utility model.

[0027] In the diagram: 1. Roadheader body; 2. Fan; 3. Mounting plate; 4. Air duct; 5. Fixing screw; 6. Ear plate; 7. Limiting outer ring; 8. Positioning rod; 9. Fixing strip; 10. Fixing ring; 11. Limiting inner ring; 12. Filter plate; 13. L-shaped plate; 14. Pull plate; 15. First tension spring; 16. Insert rod; 17. First slot; 18. Arc plate; 19. Second slot; 20. Operation panel; 21. Placement slot; 22. Second tension spring; 23. No. 1 groove; 24. Strip groove; 25. No. 2 groove; 26. Horizontal groove. Detailed Implementation

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] Example 1

[0030] Reference Figure 1-5 A dust removal fan duct relocation structure, applied in the field of roadheaders, includes: a roadheader body 1, a fan 2 installed on one side of the top of the roadheader body 1, an air inlet of the fan 2 fixedly connected to an air duct 4, the air inlet of the air duct 4 and the air outlet of the fan 2 are respectively located on the top sides of the roadheader body 1, the air duct 4 is fixedly installed on the top of the roadheader body 1 by an installation assembly, the installation assembly includes two mounting plates 3 installed on the top of the roadheader body 1, the mounting plates 3 have round holes inside that cooperate with the air duct 4, and ear plates 6 are integrally formed on both sides of the mounting plates 3, the ear plates 6 are provided with fixing screws 5 inside, the roadheader body 1 and the mounting plates 3 are fixedly connected by fixing screws 5, when the fan 2 is started, the fan 2 draws in air through the limiting outer ring 7, after being filtered by multiple filter plates 12, it is discharged through one side of the fan 2, at this time the position of the air inlet and the air outlet can be changed, thereby avoiding fresh air being drawn in again for filtration, and improving the filtration efficiency of the device;

[0031] An arc-shaped plate 18 slides through the interior of the air duct 4. One end of the arc-shaped plate 18 is fixedly connected to a limiting inner ring 11, which is located inside the air duct 4. The other end of the arc-shaped plate 18 is fixedly connected to a limiting outer ring 7, which is located outside the air duct 4. Multiple filter plates 12 are arranged inside the arc-shaped plate 18. A limiting component for limiting the arc-shaped plate 18 is arranged inside the air duct 4. The limiting component includes multiple placement slots 21 opened inside the arc-shaped plate 18. The placement slots 21 are used in conjunction with the filter plates 12. Strip grooves 24 are opened on the top and bottom inner walls of the arc-shaped plate 18. A first groove 23 is opened on the top and bottom of the limiting inner ring 11. A second groove 25 is opened on the top and bottom of the filter plates 12. Fixing strips 9 are fixedly connected to the top and bottom inner walls of the air duct 4. The fixing strip 9 works in conjunction with the strip groove 24, the first groove 23 and the second groove 25. The limiting assembly also includes the same fixing ring 10 fixedly connected to one end of the two fixing strips 9. Due to the setting of the positioning rod 8 and the fixing strip 9, the arc plate 18 can avoid detachment. Moreover, the setting of the second tension spring 22 can facilitate the device to quickly rebound. Multiple strip grooves 24 and the first groove 23 slide out along the fixing strip 9. At this time, multiple filter plates 12 are exposed on one side of the arc plate 18. The filter plates 12 can be removed laterally for cleaning. After cleaning, the second groove 25 above the filter plate 12 is aligned with the strip groove 24 and is on the same horizontal line as the first groove 23. After releasing the brake of the arc plate 18, the limiting outer ring 7 and the arc plate 18 quickly retract under the tension of the second tension spring 22 and can be reused.

[0032] A fixing assembly for securing the limiting outer ring 7 is provided on one side of the air duct 4. The fixing assembly includes an L-shaped plate 13 fixedly connected to one side of the air duct 4. An insert rod 16 slides through the interior of the L-shaped plate 13. A pull plate 14 is fixedly connected to one end of the insert rod 16. A first tension spring 15 is fixedly connected between one side of the pull plate 14 and one side of the L-shaped plate 13. The first tension spring 15 is sleeved on the insert rod 16. A first slot 17 is opened on one side of the arc-shaped plate 18, and a second slot is opened on one side of the limiting outer ring 7. 19. Both the second slot 19 and the first slot 17 are engaged with the insert rod 16. An operating plate 20 is fixedly connected to one side of the limiting outer ring 7. After filtering for a period of time, multiple filter plates 12 can be disassembled and cleaned. At this time, the pull plate 14 is pulled horizontally first. The pull plate 14 drives the insert rod 16 to move horizontally and stretches the first tension spring 15. At this time, the insert rod 16 moves out from the inside of the second slot 19 and pulls out the limiting outer ring 7 horizontally. At this time, the insert rod 16 is locked inside the first slot 17 to prevent the arc plate 18 from springing back.

[0033] Example 2

[0034] refer to Figure 1-5An improvement based on embodiment 1: The air duct 4 has two symmetrically arranged transverse grooves 26 inside. Two symmetrically arranged positioning rods 8 are fixedly connected to one side of the limiting outer ring 7. The positioning rods 8 are slidably connected inside the transverse grooves 26. One end of the positioning rod 8 is fixedly connected to the same second tension spring 22 between it and one side inner wall of the transverse groove 26.

[0035] However, as is well known to those skilled in the art, the working principles and wiring methods of the fan 2 and the tunnel boring machine body 1 are commonplace and are all conventional methods or common knowledge. They will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0036] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A dust collector fan duct rerouting structure, characterized in that, include: The main body of the roadheader (1) is provided with a fan (2) on one side of the top of the main body of the roadheader (1). The air inlet of the fan (2) is fixedly connected to the air duct (4). The air inlet of the air duct (4) and the air outlet of the fan (2) are located on the top sides of the main body of the roadheader (1) respectively. The air duct (4) is fixedly installed on the top of the main body of the roadheader (1) by the installation assembly. An arc-shaped plate (18) slides through the inside of the air duct (4). One end of the arc-shaped plate (18) is fixedly connected to a limiting inner ring (11), which is located inside the air duct (4). The other end of the arc-shaped plate (18) is fixedly connected to a limiting outer ring (7), which is located outside the air duct (4). Multiple filter plates (12) are provided inside the arc-shaped plate (18). A limiting component for limiting the arc-shaped plate (18) is provided inside the air duct (4). One side of the air duct (4) is provided with a fixing component for fixing the limiting outer ring (7).

2. The dust collector fan duct rerouting structure according to claim 1, characterized in that, The installation assembly includes two mounting plates (3) set on the top of the tunnel boring machine body (1). The mounting plates (3) have round holes inside that cooperate with the air duct (4). Both sides of the mounting plates (3) are integrally formed with ear plates (6). The ear plates (6) are provided with fixing screws (5). The tunnel boring machine body (1) and the mounting plates (3) are fixedly connected by fixing screws (5).

3. The dust collector fan duct rerouting structure according to claim 1, characterized in that, The limiting component includes multiple placement slots (21) opened inside the arc plate (18). The placement slots (21) are used in conjunction with the filter plate (12). The top and bottom inner walls of the arc plate (18) are provided with strip grooves (24). The top and bottom of the limiting inner ring (11) are provided with groove No. 1 (23). The top and bottom of the filter plate (12) are provided with groove No. 2 (25). The top and bottom inner walls of the air duct (4) are fixedly connected with fixing strips (9). The fixing strips (9) are used in conjunction with the strip grooves (24), groove No. 1 (23) and groove No. 2 (25).

4. The dust collector fan duct rerouting structure according to claim 1, characterized in that, The limiting component also includes the same fixing ring (10) fixedly connected to one end of the two fixing bars (9).

5. The dust collector fan duct rerouting structure according to claim 1, characterized in that, The fixing assembly includes an L-shaped plate (13) fixedly connected to one side of the air duct (4), with a rod (16) slidingly passing through the interior of the L-shaped plate (13). One end of the rod (16) is fixedly connected to a pull plate (14), and a first tension spring (15) is fixedly connected between one side of the pull plate (14) and one side of the L-shaped plate (13). The first tension spring (15) is sleeved on the rod (16). A first slot (17) is provided on one side of the arc plate (18), and a second slot (19) is provided on one side of the limiting outer ring (7). Both the second slot (19) and the first slot (17) engage with the rod (16). An operating plate (20) is fixedly connected to one side of the limiting outer ring (7).

6. The dust collector fan duct rerouting structure according to claim 1, characterized in that, The air duct (4) has two symmetrically arranged transverse grooves (26) inside. Two symmetrically arranged positioning rods (8) are fixedly connected to one side of the limiting outer ring (7). The positioning rods (8) are slidably connected inside the transverse grooves (26). One end of the positioning rod (8) is fixedly connected to the same second tension spring (22) between it and the inner wall of one side of the transverse groove (26).

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