Plate type coal gate easy to open and close

Abstract

The plate type coal gate easy to open and close comprises a gate body, a gate plate box, a sealing gate plate and a driving assembly, one side of the gate body is connected with the gate plate box, an inner cavity of the gate body is communicated with an inner cavity of the gate plate box, and the inner cavity of the gate body and the inner cavity of the gate plate box allow the sealing gate plate to reciprocate in the gate body and the gate plate box; the inner walls of the two sides of the gate body and the gate plate box are rotationally connected with rollers, and the sealing gate plate is arranged on the rollers and is in sliding connection with the rollers. A rotating roller is rotationally connected to the inner wall of the end, close to the gate body, of the gate plate box, gears are arranged at the two ends of the rotating roller correspondingly, toothed plates are arranged on the two opposite sides of the sealing gate plate correspondingly, and the gears are engaged with the toothed plates; the driving assembly is arranged on the outer wall of the flashboard box and drives the rotating roller to rotate; when the coal gate is in a closed state, the sealing gate plate is attached to the inner wall of the periphery of the gate body.

Description

Technical Field

[0001] This utility model relates to the field of coal conveying technology, specifically to a plate-type coal gate that is easy to open and close. Background Technology

[0002] The coal gate is mainly installed at the bottom of the raw coal bunker in the power plant. It opens and closes the raw coal bunker according to the working conditions of the coal mill to control the coal flow rate.

[0003] A Chinese patent with publication number CN219102065U discloses an electric gate for a coal feeder. The electric gate includes a fixed frame, a servo motor mounted on the top of the fixed frame, an output shaft of the servo motor connected to one end of a screw, a screw seat connected to the other end of the screw, a first gate plate connected to the bottom of the screw seat, guide rail grooves on both sides of the fixed frame, the first gate plate being movably disposed within the guide rail grooves, a second gate plate being disposed inside the first gate plate, a mounting shell mounted on the top of the first gate plate, insertion holes on the left and right sides of the mounting shell, and a telescopic mechanism mounted on the top of the second gate plate and installed in the insertion holes.

[0004] Currently, most of the electric rectangular coal gates used in power plants are intelligent reciprocating coal gates with ordinary wear-resistant steel gate plates. During unit operation, there are problems such as the coal gates getting stuck when opening and closing, and the gate plates getting stuck during movement, which causes a lot of inconvenience to planned maintenance and daily cleaning. Utility Model Content

[0005] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide a plate-type coal gate that is easy to open and close.

[0006] According to the present invention, an easy-to-open and close plate coal gate includes a gate body, a gate box, a sealing gate, and a drive assembly. One side of the gate body is connected to the gate box, and the inner cavity of the gate body is in communication with the inner cavity of the gate box. The inner cavity of the gate body and the inner cavity of the gate box allow the sealing gate to reciprocate within the gate body and the gate box.

[0007] Rollers are rotatably connected to both sides of the gate body and the inner walls of the gate box, and the sealing gate is mounted on the rollers and slidably connected to the rollers.

[0008] A rotating roller is rotatably connected to the inner wall of the gate box near one end of the gate body. Gears are provided at both ends of the rotating roller. Toothed plates are provided on opposite sides of the sealing gate. The gears mesh with the toothed plates.

[0009] The drive assembly is installed on the outer wall of the gate box, and the drive assembly drives the rotating roller to rotate.

[0010] When the coal gate is in the closed state, the sealing gate plate is in contact with the inner wall of the gate body.

[0011] Preferably, the inner wall of the gate body is provided with an arc-shaped groove, and when the coal gate is in the closed state, the sealing gate plate fits into the arc-shaped groove;

[0012] The contact points between the sealing gate and the arc-shaped groove are all designed with smooth surfaces.

[0013] Preferably, the drive assembly includes a motor, a first bevel gear, a second bevel gear, and a rotating rod. The motor drives the first bevel gear to rotate, the first bevel gear meshes with the second bevel gear, the second bevel gear is connected to the rotating rod, and the rotating rod is rotatably connected to a rotating roller via a connecting shaft.

[0014] Preferably, the connecting shaft is connected to the rotating roller via a bearing, the connecting shaft is connected to the outer ring of the bearing, and the rotating roller is connected to the inner ring of the bearing.

[0015] Preferably, the motor is mounted on the outer wall of the gate box via a mounting bracket.

[0016] Preferably, the drive assembly further includes a rotating handle, which is rotatably connected to the first bevel gear.

[0017] Preferably, the two ends of the gate body are respectively connected to a coal inlet connecting pipe and a coal outlet connecting pipe, and the coal inlet connecting pipe is connected to the coal outlet connecting pipe through the inner cavity of the gate body.

[0018] Preferably, the coal inlet connecting pipe is fixedly connected to a conveying pipe.

[0019] Preferably, the distance from the arc-shaped groove to both ends of the gate body is equal.

[0020] Preferably, the axis of the sealing gate plate coincides with the axis of the gate body and the axis of the gate plate box.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. This utility model uses a drive assembly to drive the meshing of gears and toothed plates. The meshing transmission drives the sealing gate to slide smoothly, and the roller assists the sealing gate to move smoothly, avoiding difficulties in opening and closing caused by ash accumulation, which is conducive to improving the working efficiency and stability of the coal gate.

[0023] 2. This utility model provides a bearing between the rotating rod and the rotating roller. The bearing enables the rotating roller to rotate more smoothly, which helps to reduce friction.

[0024] 3. This utility model eliminates dead corners of ash accumulation by combining the arc groove with the smooth design of the sealing gate, allowing wet coal blocks to fall smoothly into the coal mill, ensuring smooth coal conveying, and improving the problem of serious ash accumulation at the four corners of the existing reciprocating coal gate. Attached Figure Description

[0025] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0026] Figure 1 This is a schematic diagram illustrating the internal structure of the coal gate, which is the main feature of this utility model.

[0027] Figure 2 This is a schematic diagram showing the cross-sectional structure of the coal gate, which is the main feature of this utility model.

[0028] Figure 3 This is a schematic diagram illustrating the external structure of the coal gate, which is the main feature of this utility model.

[0029] Figure 4 This is a schematic cross-sectional view of the gate body, which is the main feature of this utility model.

[0030] Figure 5 This is a front view of the main external structure of the coal gate of this utility model;

[0031] Figure 6 This is a schematic diagram of the external structure of the coal gate, which is the main feature of this utility model.

[0032] In the picture:

[0033] Gate body 1, rotating roller 8, first bevel gear 15

[0034] Turn handle 2, gear 9, second bevel gear 16

[0035] Gate box 3, bearing 10, coal inlet connecting pipe 17

[0036] Sealing gate 4, connecting shaft 11, coal discharge connecting pipe 18

[0037] Arc-shaped groove 5, rotating rod 12, mounting plate 21

[0038] Roller 6, Fixing seat 13, Bolt 22

[0039] Tooth plate 7, Motor 14, Conveying pipe 23 Detailed Implementation

[0040] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0041] like Figure 1 , Figure 2 as well as Figure 3 As shown, the present invention provides an easy-to-open and close plate-type coal gate, comprising a gate body 1, a gate box 3, a sealing gate 4, and a drive assembly. One side of the gate body 1 is connected to the gate box 3, and the inner cavity of the gate body 1 communicates with the inner cavity of the gate box 3. The inner cavity of the gate body 1 and the inner cavity of the gate box 3 allow the sealing gate 4 to reciprocate within the gate body 1 and the gate box 3. Rollers 6 are rotatably connected to both inner walls of the gate body 1 and the gate box 3, and the sealing gate 4 is mounted on the rollers 6 and slidably connected to the rollers 6. A rotating roller 8 is rotatably connected to the inner wall of the gate box 3 near the end of the gate body 1. Gears 9 are provided at both ends of the rotating roller 8, and toothed plates 7 are provided on opposite sides of the sealing gate 4. The gears 9 mesh with the toothed plates 7. The drive assembly is located on the outer wall of the gate box 3, and the drive assembly drives the rotating roller 8 to rotate. When the coal gate is in the closed state, the sealing gate 4 is in contact with the circumferential inner wall of the gate body 1.

[0042] One feasible implementation is as follows: A gate box 3 is fixedly connected to the right side of the outer wall of the gate body 1. A sealing gate 4 is slidably connected to the inner wall of the gate box 3. Rollers 6 are rotatably connected to the front and rear opposite sides of the inner wall of the gate body 1 and the gate box 3. Multiple rollers 6 are slidably connected to the sealing gate 4. Tooth plates 7 are fixedly connected to the left and right opposite sides of the upper surface of the sealing gate 4, forming two tooth plates 7, a left tooth plate and a right tooth plate. A rotating roller 8 is rotatably connected to the left side of the inner wall of the gate box 3. Gears 9 are fixedly connected to the left and right ends of the rotating roller 8, forming two gears 9, a left gear and a right gear. The two gears 9 are respectively meshed with the corresponding tooth plates 7. The left gear meshes with the left tooth plate, and the right gear meshes with the right tooth plate. A drive assembly is provided on the front side of the outer wall of the gate box 3. The drive assembly drives the rotating roller 8 to rotate, and the rotating roller 8 in turn drives the left gear and the right gear to rotate. The left tooth plate and the right tooth plate rotate with the left gear and the right gear respectively. Through this meshing transmission, the tooth plate 7 and the sealing gate 4 connected to it are driven to move to the left. When the sealing gate 4 moves to the left, it slides with the roller 6, which further ensures the smooth sliding of the sealing gate 4 and ensures that the sealing gate 4 will not jam during the movement. This achieves the smooth closing of the sealing gate 4, effectively avoids the problem of opening and closing difficulties caused by ash accumulation, and improves the working efficiency and stability of the coal gate.

[0043] Specifically, such as Figure 4As shown, the inner wall of the gate body 1 is provided with arc-shaped grooves 5. When the coal gate is closed, the sealing gate plate 4 fits into the arc-shaped grooves 5. The contact points between the sealing gate plate 4 and the arc-shaped grooves 5 are all rounded, and the distances from the arc-shaped grooves 5 to both ends of the gate body 1 are equal. Alternatively, the left end of the sealing gate plate 4 can be rounded, and the inner wall of the gate body 1 is provided with arc-shaped grooves 5. The inner wall of the arc-shaped grooves 5 is rounded, and the left end of the sealing gate plate 4 fits into the arc-shaped grooves 5. The smooth fit between the arc-shaped grooves 5 inside the gate body 1 and the rounded left end of the sealing gate plate 4 eliminates dead corners for ash accumulation, allowing wet coal blocks to fall smoothly into the coal mill and ensuring smooth coal conveying. The arc groove 5 is designed to be equidistant from both ends of the gate body 1, and the arc groove 5 is set in the middle position inside the gate body 1; then the axis of the sealing gate plate 4 is set to coincide with the axis of the gate body 1 and the axis of the gate box 3. The sealing gate plate 4 is set in the middle part of the inner cavity of the gate body 1 and the inner cavity of the gate box 3, which is conducive to the sealing cooperation between the sealing gate plate 4 and the arc groove 5.

[0044] Specifically, such as Figure 1 As shown, the drive assembly includes a motor 14, a first bevel gear 15, a second bevel gear 16, and a rotating rod 12. The motor 14 drives the first bevel gear 15 to rotate, and the first bevel gear 15 meshes with the second bevel gear 16. The second bevel gear 16 is connected to the rotating rod 12, and the rotating rod 12 is rotatably connected to the rotating roller 8 via a connecting shaft 11. The connecting shaft 11 is connected to the rotating roller 8 via a bearing 10. The connecting shaft 11 is connected to the outer ring of the bearing 11, and the rotating roller 8 is connected to the inner ring of the bearing 11. The output end of the motor 14 drives the first bevel gear 15 to rotate. Since the first bevel gear 15 and the second bevel gear 16 are meshed together, the rotation of the first bevel gear 15 drives the second bevel gear 16 and the rotating rod 12 connected to it to rotate together. The rotation of the rotating rod 12 then drives the rotating roller 8 to rotate via the connecting shaft 11. The bearing 10 makes the rotation of the rotating roller 8 smoother and effectively reduces friction.

[0045] The motor 14 is mounted on the outer wall of the gate box 3 via the mounting base 13, which facilitates the stable fixation of the motor 14 on the outer wall of the gate box 3 and leaves space for the motor 14 to connect with other structures. The drive assembly also includes a rotating handle 2, which is rotatably connected to the first bevel gear 15. When the motor 14 is not started, the rotating handle 2 can be manually rotated, which drives the first bevel gear 15 to rotate, thereby driving the rotating roller 8 to rotate, realizing the operation of the coal gate without power.

[0046] Specifically, such as Figure 2 , Figure 3 , Figure 5 as well as Figure 6As shown, the two ends of the gate body 1 are respectively connected to a coal inlet pipe 17 and a coal outlet pipe 18. The coal inlet pipe 17 is connected to the coal outlet pipe 18 through the inner cavity of the gate body 1. The coal inlet pipe 17 is fixedly connected to a conveying pipe 23. The top of the gate body 1 is fixedly connected to the coal inlet pipe 17, and the bottom of the gate body 1 is fixedly connected to the coal outlet pipe 18. The top of the coal inlet pipe 17 is connected to the conveying pipe 23. The upper and lower ends of the gate body 1 are connected to the coal inlet pipe 17 and the coal outlet pipe 18 respectively, forming a coal conveying channel. The coal to be conveyed is sent into the coal inlet pipe 17 through the conveying pipe 23.

[0047] When installing the coal gate, it can be fixed to other structures by mounting plate 21 at the end of the gate box 3 away from the gate body 1, or at the right end of the gate box 3, and can be fixed by bolts 22.

[0048] In use, the pipes at both ends of the gate body 1 are first connected to the coal inlet connection pipe 17 and the coal outlet connection pipe 18 respectively to form a coal conveying channel. When it is necessary to convey coal, the sealing gate 4 is in the open state. At this time, since the contact points between the arc groove 5 and the sealing gate 4 are all designed with rounded edges, this structure effectively solves the problem of multiple corners and serious dust accumulation after long-term use of the rectangular structure of the reciprocating coal gate in the existing technology. This rounded design eliminates dead corners that are easy to accumulate dust, ensuring that wet coal blocks can fall smoothly into the coal mill in a parabolic shape without dead corners. During the conveying of coal, the coal will not be blocked in the arc groove 5, ensuring the smoothness of coal conveying. When the sealing gate 4 needs to be closed, the drive assembly starts working. First, the motor 14 is started. The output end of the motor 14 drives the first bevel gear 15 to rotate. The first bevel gear 15 and the second bevel gear 16 are meshed together. When the first bevel gear 15 rotates, it drives the second bevel gear 16 and the rotating rod 12 connected to it to rotate together. The rotation of the rotating rod 12 then drives the rotating roller 8 to rotate through the connecting shaft 11. The bearing 10 makes the rotating roller 8 rotate more smoothly and effectively reduces friction. During the rotation of the rotating roller 8, the two bearings at both ends of the rotating roller 8... Gear 9 rotates accordingly, meshing with the toothed plates 7 on the left and right sides of the upper surface of the sealing gate 4. Through this meshing transmission, the toothed plates 7 and the sealing gate 4 connected to them move to the left. When the sealing gate 4 moves to the left, it slides with the rollers 6 on the inner wall of the gate body 1 and the gate box 3, further ensuring the smooth sliding of the sealing gate 4 and ensuring that there will be no jamming during the movement. This achieves the smooth closing of the sealing gate 4, effectively avoiding the problem of opening and closing difficulties caused by ash accumulation, and improving the working efficiency and stability of the coal gate.

[0049] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0050] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the substantive content of this utility model. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A plate-type coal gate that is easy to open and close, characterized in that, It includes a gate body (1), a gate box (3), a sealing gate (4), and a drive assembly. One side of the gate body (1) is connected to the gate box (3). The inner cavity of the gate body (1) is connected to the inner cavity of the gate box (3). The inner cavity of the gate body (1) and the inner cavity of the gate box (3) allow the sealing gate (4) to reciprocate within the gate body (1) and the gate box (3). Rollers (6) are rotatably connected to both sides of the gate body (1) and the inner walls of the gate box (3), and the sealing gate (4) is set on the rollers (6) and slidably connected to the rollers (6); A rotating roller (8) is rotatably connected to the inner wall of the gate box (3) near the gate body (1). Gears (9) are provided at both ends of the rotating roller (8). Toothed plates (7) are provided on both sides of the sealing gate (4). The gears (9) mesh with the toothed plates (7). The drive assembly is installed on the outer wall of the gate box (3), and the drive assembly drives the rotating roller (8) to rotate. When the coal gate is in the closed state, the sealing gate plate (4) is in contact with the inner wall of the gate body (1).

2. The easily opened and closed sheet-type coal sluice gate according to claim 1, wherein The inner wall of the gate body (1) is provided with an arc groove (5). When the coal gate is closed, the sealing gate plate (4) fits into the arc groove (5). The contact points between the sealing gate (4) and the arc groove (5) are both designed to be smooth.

3. The easily opened and closed sheet-type coal sluice gate according to claim 1, wherein The drive assembly includes a motor (14), a first bevel gear (15), a second bevel gear (16), and a rotating rod (12). The motor (14) drives the first bevel gear (15)(9) to rotate. The first bevel gear (15)(9) meshes with the second bevel gear (16)(9). The second bevel gear (16) is connected to the rotating rod (12). The rotating rod (12) is rotatably connected to the rotating roller (8) through a connecting shaft (11).

4. The easily opened and closed sheet-type coal sluice gate according to claim 3, wherein The connecting shaft (11) is connected to the rotating roller (8) via the bearing (10). The connecting shaft (11) is connected to the outer ring of the bearing (10), and the rotating roller (8) is connected to the inner ring of the bearing (10).

5. The easily opened and closed sheet-type coal sluice gate according to claim 3, wherein The motor (14) is mounted on the outer wall of the gate box (3) via a mounting bracket (13).

6. The easily opened and closed sheet-type coal sluice gate according to claim 1, wherein The drive assembly also includes a rotating handle (2), which is rotatably connected to a first bevel gear (15).

7. The easy-to-open and close plate-type coal gate as described in claim 1, characterized in that, The two ends of the gate body (1) are respectively connected to a coal inlet connecting pipe (17) and a coal outlet connecting pipe (18), and the coal inlet connecting pipe (17) is connected to the coal outlet connecting pipe (18) through the inner cavity of the gate body (1).

8. The easy-to-open and close plate-type coal gate as described in claim 7, characterized in that, The coal inlet connecting pipe (17) is fixedly connected to the conveying pipe (23).

9. The easily opened and closed sheet-type coal sluice gate according to claim 2, wherein The distances from the arc-shaped groove (5) to both ends of the gate body (1) are equal.

10. The easily opened and closed sheet-type coal sluice gate according to claim 1, wherein The axis of the sealing gate (4) coincides with the axis of the gate body (1) and the axis of the gate box (3).

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