Anti-blocking device for coal blending machine

Abstract

The application relates to a kind of anti-blocking devices for coal blending machine, belong to the technical field of coal blending machine, it includes the middle part of the side of hopper and the shaft of two sides opposite through the hopper, the shaft is located in the lower side of the hopper and is rotationally connected with the hopper, one end of the shaft is equipped with motor for driving the rotation of the shaft, a plurality of blades located in the hopper and uniformly distributed around the shaft are arranged on the circumference of the shaft, bearing seat installed on the lower side outside the hopper is rotationally connected to both ends of the shaft. The application has the effect of reducing the adverse effects of material blockage on work efficiency.

Description

Technical Field

[0001] This application relates to the technical field of coal blending machines, and in particular to an anti-clogging device for coal blending machines. Background Technology

[0002] Because the quality of coal varies in different regions, coal blenders are typically used to mix different types of coal to meet user requirements for coal quality, calorific value, ash content, and other indicators. A coal blender mainly consists of a separator, computer, electrical control system, and coal feeding system. During operation, the separator separates coal particles with different calorific values ​​and ash content from the various coal types coming from the feed pump. These particles are then automatically calculated by the computer and mixed in a specific ratio before being fed into boilers and other equipment via the coal feeding system.

[0003] When batching materials with high moisture content and sticky texture, the materials tend to adhere to the wall plates of the coal blender hopper, which can easily cause material blockage, reduce material throughput, and thus adversely affect work efficiency. Utility Model Content

[0004] In order to reduce the adverse effects of material blockage on work efficiency, this application provides an anti-blocking device for a coal blender.

[0005] The anti-clogging device for a coal blender provided in this application adopts the following technical solution: An anti-clogging device for a coal blender includes a rotating shaft located in the middle of one side of a hopper and passing through two opposite sides of the hopper. The rotating shaft is located on the lower side of the hopper and rotatably connected to the hopper. A motor for driving the rotating shaft is installed at one end of the rotating shaft. Multiple blades located in the hopper and evenly distributed around the rotating shaft are provided on the circumference of the rotating shaft. Bearing seats installed on the lower side of the outside of the hopper are sleeved and rotatably connected to both ends of the rotating shaft.

[0006] By adopting the above technical solution, the motor drives the rotating shaft to rotate the blades, thereby guiding the material that has moved to the hopper discharge port. This facilitates the material passing through the hopper discharge port under the guidance of the blades, reducing the possibility of material clogging at the hopper discharge port and thus minimizing the adverse impact on work efficiency.

[0007] Optionally, the rotating shaft includes a shaft body and extension shafts installed on both sides of the shaft body. The length of the shaft body is less than the length of the upper opening of the hopper. The blades are all installed in the circumferential direction on the outer side of the shaft body. A flange is provided between the extension shaft and the end of the shaft body to connect the two.

[0008] By adopting the above technical solution, the extension shaft passes through the side wall of the hopper and is inserted into the corresponding bearing seat. After the blades are installed, the shaft body is placed into the hopper through the upper side and fixed to the extension shaft through the flange. This makes it easy to install the rotating shaft in the hopper. When the blades are damaged, the shaft body can be removed and replaced with a new shaft body and blades, reducing the adverse effects of blade damage on material feeding and thus reducing the adverse effects of material blockage on work efficiency.

[0009] Optionally, all blades are slidably connected to the rotating shaft and the blades can be fully inserted into the rotating shaft, and the rotating shaft is provided with a driving component for driving the blades to slide.

[0010] By adopting the above technical solution, when the rotating shaft is installed on the hopper, the drive blades are fully inserted into the rotating shaft, and the rotating shaft passes through the bearing seat on one side of the hopper and through the hopper until it passes through another bearing seat. At this time, the blades are all located in the hopper. The drive assembly drives the blades to move away from the inside of the rotating shaft, which makes it easier to install the rotating shaft on the hopper. At the same time, it is easy to disassemble and replace the rotating shaft and blades through the drive assembly, reducing the adverse effects of blade damage on material feeding, and thus reducing the adverse effects of material blockage on work efficiency.

[0011] Optionally, the blades arranged along the same length direction of the rotating shaft are a group, and the projections of the blades in the same group in the length direction of the rotating shaft all coincide. The end of each group of blades near the rotating shaft is inserted into the rotating shaft. The driving assembly includes a connecting plate that corresponds one-to-one with each group of blades and is fixedly connected to the corresponding blade. The connecting plate moves in a direction closer to or away from the rotation axis of the rotating shaft. The rotating shaft is provided with a driving member that drives the connecting plate to move.

[0012] By adopting the above technical solution, during installation, the drive connecting plate drives the corresponding blade to fully enter the rotating shaft. When the rotating shaft is installed on the hopper, the drive unit drives the connecting plate to move away from the inside of the rotating shaft, which facilitates the drive blade to extend out of the rotating shaft. This makes it easier to disassemble and assemble the rotating shaft and blade, reduces the adverse effects of blade damage on material feeding, and further reduces the adverse effects of material blockage on work efficiency.

[0013] Optionally, a spring is provided between the end of the connecting plate and the side wall of the rotating shaft, both away from the axis of rotation of the rotating shaft. When the spring is at its original length, the blade is fully inserted into the rotating shaft.

[0014] By adopting the above technical solution, when the driving component drives the blade to extend out of the rotating shaft, the spring is compressed. When it is necessary to disassemble the rotating shaft and the blade, the driving component disengages from the rotating shaft. At this time, the spring restores its deformation and drives the corresponding blade to move into the rotating shaft completely through the connecting plate, thereby facilitating the extension and retraction of the blade and improving work efficiency.

[0015] Optionally, the driving component includes a driving rod with one end inserted into the rotating shaft and slidably connected to the rotating shaft. When the driving rod is inserted into the rotating shaft, it pushes the blade to move away from the rotation axis of the rotating shaft. The driving rod can drive the rotating shaft to rotate. The motor is fixedly connected to the end of the driving rod. The end of the driving rod inserted into the rotating shaft is set as a pointed tip. The rotating shaft is provided with a fixing member to fix the driving rod.

[0016] By adopting the above technical solution, the rotating shaft is installed on the hopper, and the tip of the drive rod is inserted into the rotating shaft from the end of the rotating shaft closest to the motor and pushed to move along the length of the rotating shaft until the tip abuts against the side wall of the rotating shaft. The drive rod is fixed to the rotating shaft by a fixing component. When the motor drives the drive rod to rotate, it drives the rotating shaft and the blades to rotate, which makes it easier for the material to pass through the discharge port of the hopper under the action of the blades, reducing the possibility of material clogging at the discharge port of the hopper.

[0017] Optionally, the fastener includes a fixing plate that is fixedly connected to the end of the rotating shaft near the motor by bolts, the end of the drive rod near the motor is inserted into the fixing plate and fixedly connected to a mounting rod with a cross-sectional area smaller than that of the drive rod, the mounting rod passes through the fixing plate and is fixedly connected to the output shaft of the motor.

[0018] By adopting the above technical solution, the motor drives the mounting rod to rotate, and the driving rod drives the rotating shaft and blades to rotate. At this time, the fixed plate and the rotating shaft limit the driving rod, improving the stability of the driving rod, and thus improving the stability of the blades.

[0019] Optionally, the width direction of the blade away from the drive rod is set to be arc-shaped, and when the blade is completely located in the rotating shaft, the side of the blade away from the drive rod is flush with the circumferential surface of the rotating shaft.

[0020] By adopting the above technical solution, the shape of the blades allows the sidewall of the shaft and the sidewall of the blades to form a complete circumferential surface when the blades are fully inserted into the shaft. This reduces the possibility of material entering the shaft through gaps and making it difficult for the blades to extend. It also facilitates the blades to push material to the hopper discharge port, reducing the possibility of material clogging at the hopper discharge port.

[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. The motor drives the rotating shaft to rotate the blades, thereby guiding the material that has moved to the feed inlet of the hopper. This facilitates the material passing through the feed inlet of the hopper under the guidance of the blades, reducing the possibility of material blockage and thus reducing the adverse impact on work efficiency. 2. Pass the extension shaft through the side wall of the hopper and insert it into the corresponding bearing seat. After installing the blades, place the shaft body into the hopper through the upper side and fix it to the extension shaft through the flange. This makes it easy to install the rotating shaft in the hopper. When the blades are damaged, remove the shaft body and replace it with a new shaft body and blades to reduce the adverse effects of blade damage on material feeding. 3. Drive the blades to fully enter the rotating shaft, and pass the rotating shaft through the bearing seat on one side of the hopper and through the hopper until it passes through another bearing seat. At this time, the blades are all located in the hopper. Drive the blades to move away from the inside of the rotating shaft through the drive assembly, which makes it easier to install the rotating shaft on the hopper. At the same time, it is easy to disassemble and replace the rotating shaft and blades through the drive assembly, reducing the adverse effects of blade damage on material feeding. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the anti-clogging device for a coal blender as shown in Embodiment 1 of this application.

[0023] Figure 2 This is a structural schematic diagram illustrating the positional relationship between the shaft body and the extension shaft in Embodiment 1 of this application.

[0024] Figure 3 This is a structural schematic diagram illustrating the positional relationship between the rotating shaft and the hopper in Embodiment 2 of this application.

[0025] Figure 4 This is a structural diagram illustrating the positional relationship between the rotating shaft and the drive component in Embodiment 2 of this application.

[0026] Figure 5 yes Figure 4 Enlarged view of the structure at point A in the middle.

[0027] Figure 6 This is a structural schematic diagram illustrating the positional relationship between the rotating shaft and the fixing plate in Embodiment 2 of this application.

[0028] Explanation of reference numerals in the attached drawings: 1. Hopper; 11. Discharge port; 12. Bearing seat; 13. Mounting plate; 2. Rotating shaft; 21. Shaft body; 22. Extension shaft; 23. Flange; 24. Reducer; 25. Motor; 26. Sliding groove; 27. Insertion groove; 3. Blade; 4. Drive assembly; 41. Connecting plate; 42. Spring; 43. Drive rod; 44. Fixing plate; 441. Mounting groove; 45. Mounting rod. Detailed Implementation

[0029] The present application will be further described in detail below with reference to the accompanying drawings.

[0030] This application discloses an anti-clogging device for a coal blending machine. Example

[0031] Reference Figure 1 and Figure 2 A coal blender anti-clogging device includes a horizontal rotating shaft 2 that penetrates two oppositely arranged side walls at the lower end of the hopper 1 and is located above the discharge port 11 of the hopper 1. The rotating shaft 2 includes a shaft body 21 and extension shafts 22 symmetrically arranged at both ends of the shaft body 21. The ends of the extension shafts 22 that are close to each other are fixedly connected to vertical flanges 23 facing the shaft body 21, and the ends of the shaft body 21 are also fixedly connected to vertical flanges 23. Adjacent flanges 23 abut against each other and are fixedly connected by bolts.

[0032] The ends of the extension shafts 22 that are far apart from each other pass through the side wall of the hopper 1 and are rotatably connected to the hopper 1. Vertical bearing seats 12 corresponding to the extension shafts 22 are provided on both sides of the outside of the hopper 1. The ends of the extension shafts 22 that pass through the side wall of the hopper 1 pass through the corresponding bearing seats 12 and are rotatably connected to the bearing seats 12. The lower end of the bearing seats 12 is fixedly connected to the mounting plate 13 that is fixedly connected to the outer side wall of the hopper 1.

[0033] Reference Figure 2 Multiple blades 3 are fixedly connected to the outer circumference of the shaft body 21, facing away from the shaft body 21. The blades 3 are arranged in four groups along the circumference of the rotating shaft 2. Blades 3 in the same group are arranged along the length of the rotating shaft 2, and the projections of blades 3 in the same group on the cross-section of the rotating shaft 2 all coincide. In this embodiment, the cross-section of the blades 3 is rectangular. In other embodiments, the blades 3 can be cylindrical or plate-shaped along the length of the rotating shaft 2. A reducer 24 is installed at the end of one of the extension shafts 22 away from the shaft body 21, and a motor 25 fixedly connected to the outer wall of the hopper 1 is mounted on the reducer 24.

[0034] The motor 25 drives the rotating shaft 2 through the reducer 24 to rotate the blades 3, thereby pushing the material that has moved to the discharge port 11 of the hopper 1, so that the material can pass through the discharge port 11 of the hopper 1 under the pushing of the blades 3.

[0035] The extension shaft 22 is passed through the side wall of the hopper 1 and inserted into the corresponding bearing seat 12. The shaft body 21 after the blade 3 is installed is placed into the hopper 1 through the upper side of the hopper 1 and fixed to the extension shaft 22 through the flange 23, so as to facilitate the installation of the rotating shaft 2 in the hopper 1. When the blade 3 is damaged, the shaft body 21 is removed and a new shaft body 21 and blade 3 are replaced.

[0036] The implementation principle of Example 1 is as follows: the drive shaft 2 drives the blade 3 to rotate, thereby pushing the material that has moved to the discharge port 11 of the hopper 1, so that the material can pass through the discharge port 11 of the hopper 1 under the pushing of the blade 3. Example

[0037] Reference Figure 3 and Figure 4The difference between this embodiment and embodiment 1 is that the end of each blade 3 near the rotating shaft 2 is inserted into the rotating shaft 2 and slidably connected to it. Each blade 3 can be fully inserted into the rotating shaft 2. The rotating shaft 2 is provided with a driving assembly 4 for driving the blades 3 to slide. The side of each blade 3 away from the rotation axis of the rotating shaft 2 is set as an arc along its own width direction. When the blade 3 is fully inserted into the rotating shaft 2, the side of the blade 3 away from the rotation axis of the rotating shaft 2 is flush with the outer circumferential surface of the rotating shaft 2.

[0038] The drive blade 3 is fully inserted into the rotating shaft 2, and the rotating shaft 2 passes through the bearing seat 12 on one side of the hopper 1 and through the hopper 1 until it passes through another bearing seat 12. At this time, the blade 3 is located in the hopper 1. The drive assembly 4 drives the blade 3 to move away from the interior of the rotating shaft 2, which makes it easier to install the rotating shaft 2 on the hopper 1. At the same time, it is easy to disassemble and replace the rotating shaft 2 and the blade 3 through the drive assembly 4, reducing the adverse effects of blade 3 damage on material feeding.

[0039] The shape of the blade 3 ensures that when the blade 3 is fully inserted into the rotating shaft 2, the side wall of the rotating shaft 2 and the side wall of the blade 3 form a complete circumferential surface, reducing the possibility that material may enter the rotating shaft 2 through the gap and cause the blade 3 to be difficult to extend.

[0040] Reference Figure 3 , Figure 4 and Figure 5 The drive assembly 4 includes a connecting plate 41 that corresponds one-to-one with the blades 3 in the same group and is fixedly connected to one end of the corresponding blade 3 inserted into the rotating shaft 2. The connecting plates 41 are all arranged along the length of the rotating shaft 2 and are slidably connected to the rotating shaft 2 in a direction close to or away from the axis of rotation of the rotating shaft 2. The rotating shaft 2 has sliding grooves 26 that correspond one-to-one with the connecting plates 41 and are adapted to the movement trajectory of the corresponding connecting plates 41. The side of the sliding grooves 26 away from the corresponding blade 3 is interconnected.

[0041] Two symmetrically arranged springs 42 facing the rotation axis of the rotating shaft 2 are provided on the side of the sliding groove 26 away from the rotation axis of the rotating shaft 2. The springs 42 are located at both ends of the corresponding connecting plate 41 away from the rotation axis of the rotating shaft 2. One end of the spring 42 is fixedly connected to the end of the corresponding connecting plate 41, and the other end is fixedly connected to the inner wall of the rotating shaft 2. When the spring 42 is at its original length, the blade 3 is fully inserted into the rotating shaft 2, and the rotating shaft 2 is provided with a driving member that drives the connecting plate 41 to compress the corresponding spring 42.

[0042] The driving component includes a horizontal driving rod 43 whose cross-section is adapted to the vertical cross-section of the interconnected sliding groove 26. The end of the driving rod 43 away from the motor 25 is configured as a tip that gradually tilts away from the motor 25 and towards the rotation axis of the rotating shaft 2. The end of the rotating shaft 2 away from the motor 25 is provided with a insertion groove 27 that is adapted to the tip and communicates with the sliding groove 26. When the tip of the driving rod 43 is inserted into the insertion groove 27, the end of the driving rod 43 away from its own tip is located outside the rotating shaft 2. The rotating shaft 2 is provided with a fixing component to fix the driving rod 43.

[0043] Reference Figure 4 and Figure 6 The fixing component includes a vertical fixing plate 44 located on the side of the rotating shaft 2 near the motor 25. The diameter of the fixing plate 44 is adapted to the outer diameter of the rotating shaft 2, and the fixing plate 44 is fixedly connected to the end of the rotating shaft 2 by bolts. A mounting groove 441 adapted to the end of the drive rod 43 is provided on the side of the fixing plate 44 near the rotating shaft 2. The end of the drive rod 43 near the motor 25 is inserted into the mounting groove 441. A horizontal mounting rod 45 is fixedly connected to the middle of the side of the drive rod 43 near the fixing plate 44, facing away from the rotating shaft 2 and passing through the fixing plate 44. The mounting rod 45 is coaxial with the rotating shaft 2, and the cross-sectional area of ​​the mounting rod 45 in the vertical direction is smaller than the cross-sectional area of ​​the drive rod 43 in the vertical direction. The motor 25 is mounted on the end of the mounting rod 45 away from the rotating shaft 2 via a reducer 24.

[0044] During installation, when the drive rod 43 is not inserted into the rotating shaft 2, the spring 42 is at its original length and the blade 3 is fully inserted into the rotating shaft 2. The rotating shaft 2 is passed through and installed on the hopper 1 and the bearing seat 12. The tip of the drive rod 43 is inserted into the rotating shaft 2 from the end of the rotating shaft 2 closest to the motor 25 and the drive rod 43 is pushed to move along the length of the rotating shaft 2 until the tip is inserted into the insertion slot 27. This drives the connecting plate 41 to move the blade 3 away from the interior of the rotating shaft 2, so that the blade 3 can extend out of the rotating shaft 2. At this time, the spring 42 is compressed.

[0045] The fixing plate 44 is installed at the end of the rotating shaft 2. At this time, the end of the drive rod 43 near the motor 25 is inserted into the mounting groove 441, and the mounting rod 45 passes through the fixing plate 44. At this time, the fixing plate 44 and the rotating shaft 2 limit the drive rod 43, improve the stability of the drive rod 43, and thus improve the stability of the blade 3. The motor 25 is installed on the mounting rod 45 through the reducer 24, so that the motor 25 can drive the drive rod 43 to rotate through the reducer 24 and the mounting rod 45, and drive the rotating shaft 2 and the blade 3 to rotate, so that the material can pass through the discharge port 11 of the hopper 1 under the action of the blade 3.

[0046] The implementation principle of Example 2 is as follows: Drive the blade 3 to fully enter the rotating shaft 2, and pass the rotating shaft 2 through the bearing seat 12 on one side of the hopper 1 and through the hopper 1 until it passes through another bearing seat 12. At this time, the blade 3 is located in the hopper 1. Drive the blade 3 to move away from the interior of the rotating shaft 2 and extend it out, so that the rotating shaft 2 can be installed on the hopper 1. At the same time, it is convenient to disassemble and replace the rotating shaft 2 and the blade 3.

[0047] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An anti-clogging device for a coal blending machine, characterized in that: Includes a rotating shaft (2) located in the middle of one side of the hopper (1) and passing through the two opposite sides of the hopper (1). The rotating shaft (2) is located on the lower side of the hopper (1) and is rotatably connected to the hopper (1). A motor (25) for driving the rotating shaft (2) to rotate is installed at one end of the rotating shaft (2). Multiple blades (3) are provided on the circumference of the rotating shaft (2) and are located in the hopper (1) and are evenly distributed around the rotating shaft (2). Both ends of the rotating shaft (2) are sleeved and rotatably connected to bearing seats (12) installed on the lower side of the outside of the hopper (1).

2. The anti-clogging device for a coal blender according to claim 1, characterized in that: The rotating shaft (2) includes a shaft body (21) and an extension shaft (22) installed on both sides of the shaft body (21). The length of the shaft body (21) is less than the length of the upper opening of the hopper (1). The blades (3) are all installed in the circumferential direction on the outside of the shaft body (21). A flange (23) is provided between the extension shaft (22) and the end of the shaft body (21) to connect the two.

3. The anti-clogging device for a coal blending machine according to claim 1, characterized in that: The blades (3) are all slidably connected to the rotating shaft (2) and the blades (3) can be completely inserted into the rotating shaft (2). The rotating shaft (2) is provided with a driving assembly (4) for driving the blades (3) to slide.

4. The anti-clogging device for a coal blending machine according to claim 3, characterized in that: The blades (3) arranged along the same length direction of the rotating shaft (2) are a group and the projections of the blades (3) in the same group of the rotating shaft (2) are all coincident. The end of each group of blades (3) near the rotating shaft (2) is inserted into the rotating shaft (2). The drive assembly (4) includes a connecting plate (41) that corresponds to each group of blades (3) and is fixedly connected to the corresponding blade (3). The connecting plate (41) moves in a direction close to or away from the rotation axis of the rotating shaft (2). The rotating shaft (2) is provided with a drive member that drives the connecting plate (41) to move.

5. A device for preventing blockage of a coal blending machine according to claim 4, characterized in that: A spring (42) is provided between the end of the connecting plate (41) and the side away from the rotation axis of the rotating shaft (2) and the side wall of the rotating shaft (2). When the spring (42) is at its original length, the blade (3) is fully inserted into the rotating shaft (2).

6. A device for preventing blockage of a coal blending machine according to claim 5, characterized in that: The driving component includes a driving rod (43) with one end inserted into the rotating shaft (2) and slidably connected to the rotating shaft (2). When the driving rod (43) is inserted into the rotating shaft (2), it pushes the blade (3) to move away from the axis of the rotating shaft (2). The driving rod (43) can drive the rotating shaft (2) to rotate. The motor (25) is fixedly connected to the end of the driving rod (43). The end of the driving rod (43) inserted into the rotating shaft (2) is set as a tip. The rotating shaft (2) is provided with a fixing member to fix the driving rod (43).

7. The anti-clogging device for a coal blender according to claim 6, characterized in that: The fastener includes a fixing plate (44) that is fixedly connected to one end of the rotating shaft (2) near the motor (25) by bolts. The end of the drive rod (43) near the motor (25) is inserted into the fixing plate (44) and fixedly connected to a mounting rod (45) with a cross-sectional area smaller than that of the drive rod (43). The mounting rod (45) passes through the fixing plate (44) and is fixedly connected to the output shaft of the motor (25).

8. A device for preventing blockage of a coal blending machine according to claim 7, characterized in that: The width direction of the blade (3) away from the drive rod (43) is set to arc. When the blade (3) is completely located in the rotating shaft (2), the side of the blade (3) away from the drive rod (43) is flat with the circumferential surface of the rotating shaft (2).

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