Sealed feed trough
By alternately setting the material drop buffer assembly and idler roller assembly in the material guide chute, the problem of belt wear and high running resistance caused by the buffer plate in the material guide chute is solved, and the effect of reducing conveyor belt wear and resistance is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI JUNSHENG MACHINERY EQUIPMENT CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-05-26
Smart Images
Figure CN224278755U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of material guide technology, and more specifically, relates to a sealed material guide. Background Technology
[0002] A feed chute is a conveying device used to transport materials such as coal. It has a belt conveyor at its bottom to transport the material to a designated location. To prevent dust generated during material unloading and transportation from spreading to the outside, a protective cover can be installed on the outside of the feed chute, forming a sealed conveying channel, i.e., a sealed feed chute.
[0003] The feed chute is supported by idler rollers at the bottom, and a discharge pipe is located above the feed end of the belt. The material falls through the discharge pipe onto the belt below and is then conveyed to the discharge position by the belt. The material has a large impact force when it falls from the discharge pipe onto the belt. In order to prevent the idler roller bearings from being damaged by excessive impact force, the existing technology usually installs a buffer plate below the discharge pipe instead of the idler roller. Although the buffer plate can absorb the impact force when the material falls and play a buffering role, when the buffer plate is long, it will increase the resistance of the belt running and make the belt and buffer plate more prone to wear. Utility Model Content
[0004] Based on the above-mentioned technical problems, this application provides a sealed guide groove to solve the problems of high belt running resistance and easy wear caused by the integral buffer plate in the prior art.
[0005] To achieve the above objectives, the technical solution adopted in this application is: to provide a sealed material guide groove, comprising:
[0006] The main body of the feed chute has a material conveying channel inside, and a material discharge port is opened at the top of the material conveying channel;
[0007] Multiple idler roller assemblies are spaced apart below the material conveying channel along the material conveying direction. Each idler roller assembly includes an idler roller bracket, and horizontal idler rollers and inclined idler rollers respectively disposed on the idler roller bracket. The horizontal idler rollers are disposed in the middle of the idler roller bracket, and the two inclined idler rollers are disposed opposite each other on both sides of the horizontal idler roller.
[0008] Multiple material discharge buffer assemblies are disposed below the material discharge port and alternately arranged with the idler roller assembly. Each material discharge buffer assembly includes a buffer bracket, and a horizontal buffer plate and an inclined buffer plate respectively disposed on the buffer bracket. The horizontal buffer plate is disposed in the middle of the buffer bracket, and two inclined buffer plates are disposed opposite each other on both sides of the horizontal buffer plate.
[0009] A conveyor belt is provided around the outside of the idler assembly and the material drop buffer assembly.
[0010] In one possible implementation, the end of the inclined idler adjacent to the horizontal idler is hinged to the idler bracket, and the idler assembly further includes two first adjustment mechanisms, each corresponding to one of the inclined idlers, which are used to drive the end of the corresponding inclined idler away from the horizontal idler to move up and down.
[0011] In one possible implementation, support plates are provided on both sides of the idler roller bracket, and the support plates are provided with first mounting holes. The first adjustment mechanism includes:
[0012] A first screw, extending vertically through the first mounting hole, is hinged at its top end to the inclined roller at the end furthest from the horizontal roller; and
[0013] The first locking nut is located above the support plate and is threadedly engaged with the first screw.
[0014] In one possible implementation, the inclined buffer plate is hinged to the buffer bracket at one end adjacent to the horizontal buffer plate, and a limiting plate is provided at the end of the inclined buffer plate away from the horizontal buffer plate. The limiting plate has a plurality of first limiting holes along the rotation path of the inclined buffer plate, and the buffer bracket has a second limiting hole corresponding to the first limiting hole. During the rotation of the inclined buffer plate, the plurality of first limiting holes are sequentially coaxially aligned with the second limiting hole, and the second limiting hole is detachably connected to the corresponding first limiting hole by a limiting member.
[0015] In one possible implementation, the discharge port is provided with a discharge pipe, the outlet of which extends downward at an angle along the material conveying direction, and the cross-sectional area of the outlet of the discharge pipe gradually shrinks from the edge to the center.
[0016] In one possible implementation, the sealed feed chute further includes a material alignment component, the material alignment component comprising:
[0017] Two baffles are disposed opposite each other on the side walls of the material conveying channel and located below the outlet of the discharge pipe; the upper ends of the baffles are hinged to the inner wall of the material conveying channel; and
[0018] Two second adjustment mechanisms are respectively connected to the two baffles and are used to drive the corresponding baffles to rotate around the hinge axis with the material conveying channel.
[0019] In one possible implementation, the side wall of the material conveying channel has an clearance hole that penetrates the wall thickness of the main body of the guide trough, and the second adjustment mechanism includes:
[0020] The mounting base is rotatably disposed on the outer side wall of the guide trough body along the horizontal axis, and has a second mounting hole that penetrates its own thickness.
[0021] The second screw passes through the second mounting hole and the clearance hole, and is hinged to the baffle plate; and
[0022] The second locking nut engages with the threaded portion of the second screw located above the mounting base.
[0023] In one possible implementation, dust curtains are provided at both ends and inside the main body of the feed chute, and the dust curtains include:
[0024] A curtain that vertically covers the cross-section of the material conveying channel;
[0025] A lifting screw, the upper part of which is threadedly engaged with the main body of the guide trough, and the lower part of which is rotatably connected to the curtain body; and
[0026] The third locking nut is located above the main body of the guide trough and engages with the upper thread of the lifting screw.
[0027] In one possible implementation, the main body of the material guide trough is formed by sequentially splicing multiple material guide trough segments. The top of one of the material guide trough segments is provided with the material discharge port, and the top of at least one of the material guide trough segments is provided with a return trough. The lower part of the return trough is connected to the material conveying channel. A guide body is provided inside the return trough, and the guide body and the inner wall of the return trough form a tortuous return channel.
[0028] In one possible implementation, the main body of the guide trough is formed by sequentially splicing multiple guide trough segments, each segment comprising:
[0029] roof;
[0030] Two first side plates are arranged opposite each other, with the upper part of the first side plates connected to the top plate;
[0031] Two opposing second side plates are provided, with the second side plates located below the first side plate and spaced vertically from the first side plate. The outer side of the second side plate is provided with an anti-overflow skirt.
[0032] Two opposing third side plates are provided, with the upper part of the third side plate abutting against the outer side of the first side plate, the middle part of the third side plate hinged to the upper part of the second side plate, and the lower part of the third side plate abutting against the inner side of the second side plate. The outer side of the third side plate is provided with a plurality of studs spaced apart along its own length direction. The studs penetrate the third side plate and are threaded with a fourth locking nut.
[0033] Compared with the prior art, the beneficial effects of the sealed material guide channel provided in this application are:
[0034] The sealed material guide chute provided in this application includes a chute body, idler roller assemblies, a material discharge buffer assembly, and a conveyor belt. The idler roller assemblies and the material discharge buffer assembly support the conveyor belt. The material discharge buffer assembly is located below the material discharge port, and multiple material discharge buffer assemblies and idler roller assemblies are alternately arranged below the material discharge port. When material falls from the material discharge port onto the conveyor belt, the horizontal and inclined buffer plates absorb the impact force generated by the falling material, preventing excessive impact force from damaging the idler roller assembly. The rotation of the horizontal and inclined idler rollers below the material discharge port helps reduce the resistance of the conveyor belt running below the material discharge port, preventing excessive wear.
[0035] This application adopts an alternating arrangement of material drop buffer components and idler roller components below the material drop outlet. Compared with the integral buffer plate in the prior art, it can absorb the impact force of the material falling from the material drop outlet, prevent the frictional resistance between the buffer plate and the conveyor belt from being too large, reduce the running resistance of the conveyor belt, and also help reduce the wear of the conveyor belt. Attached Figure Description
[0036] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0037] Figure 1 This is a schematic diagram of the structure of the sealed material guide groove provided in the embodiments of this application;
[0038] Figure 2 This is an internal cross-sectional view of the sealed material guide channel provided in an embodiment of this application;
[0039] Figure 3 for Figure 2 Enlarged view of part A in the middle;
[0040] Figure 4 for Figure 2 Enlarged view of part B in the middle;
[0041] Figure 5 This is a schematic diagram of the idler roller assembly.
[0042] Figure 6 This is a schematic diagram of the idler roller assembly and the material discharge buffer assembly.
[0043] Figure 7 for Figure 6 Enlarged view of a section in the middle C;
[0044] Figure 8 This is a structural diagram of the feed chute unit, the unloading pipe, and the centering assembly.
[0045] Figure 9 for Figure 8 Enlarged view of a section in part D;
[0046] Figure 10 This is a structural diagram of the material guide trough and dust curtain.
[0047] Figure 11 This is a schematic diagram of the structure of a single feed trough;
[0048] Figure 12 This is an exploded view of a single feed trough unit;
[0049] Explanation of reference numerals in the attached figures:
[0050] 10. Main body of the guide chute; 11. Individual guide chute unit; 111. Top plate; 112. First side plate; 113. Second side plate; 114. Third side plate; 115. Stud; 116. Fourth locking nut; 117. Overflow skirt; 12. Discharge pipe; 13. Return chute; 131. Guide body; 20. Idler roller assembly; 21. Idler roller bracket; 22. Horizontal idler roller; 23. Inclined idler roller; 24. First adjusting mechanism; 241. First screw; 242 30. First locking nut; 31. Material drop buffer assembly; 32. Buffer bracket; 33. Horizontal buffer plate; 34. Inclined buffer plate; 35. Limiting plate; 36. First limiting hole; 37. Limiting component; 48. Material centering assembly; 49. Baffle plate; 40. Second adjusting mechanism; 41. Mounting base; 422. Second screw; 423. Second locking nut; 50. Dust curtain; 51. Curtain body; 52. Lifting screw; 53. Third locking nut. Detailed Implementation
[0051] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.
[0052] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.
[0053] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "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.
[0054] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.
[0055] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.
[0056] Please refer to the following: Figures 1 to 12 The sealing guide groove provided in the embodiments of this application will be described below.
[0057] Please see Figure 1 , Figure 2 , Figure 3 and Figure 6 This application provides a sealed material guide trough, including a material guide trough body 10, a roller assembly 20, a material drop buffer assembly 30, and a conveyor belt. The material conveying channel is formed inside the main body 10 of the material conveying trough, and a material discharge port is opened at the top of the material conveying channel. Multiple idler roller assemblies 20 are spaced apart below the material conveying channel along the material conveying direction. Each idler roller assembly 20 includes an idler roller bracket 21, and a horizontal idler roller 22 and an inclined idler roller 23 respectively disposed on the idler roller bracket 21. The horizontal idler roller 22 is located in the middle of the idler roller bracket 21, and the two inclined idler rollers 23 are arranged opposite each other on both sides of the horizontal idler roller 22. Multiple material discharge buffer assemblies 30 are disposed below the material discharge port and are alternately arranged with the idler roller assemblies 20. Each material discharge buffer assembly 30 includes a buffer bracket 31, and a horizontal buffer plate 32 and an inclined buffer plate 33 respectively disposed on the buffer bracket 31. The horizontal buffer plate 32 is located in the middle of the buffer bracket 31, and the two inclined buffer plates 33 are arranged opposite each other on both sides of the horizontal buffer plate 32. A conveyor belt is wrapped around the outside of the idler roller assembly 20 and the material discharge buffer assembly 30.
[0058] Compared with the prior art, the beneficial effects of the sealed material guide groove provided in this application embodiment are:
[0059] The sealed material guide chute provided in this embodiment includes a chute body 10, a roller assembly 20, a material discharge buffer assembly 30, and a conveyor belt. The roller assembly 20 and the material discharge buffer assembly 30 are used to support the conveyor belt. The material discharge buffer assembly 30 is located below the material discharge port, and multiple (e.g., three, four, or more) of the material discharge buffer assembly 30 and roller assembly 20 are arranged alternately below the material discharge port. When material falls from the material discharge port onto the conveyor belt, the horizontal buffer plate 32 and the inclined buffer plate 33 absorb the impact force generated by the falling material, preventing excessive impact force from damaging the roller assembly 20. The rotation of the horizontal roller 22 and the inclined roller 23 below the material discharge port helps to reduce the resistance of the conveyor belt running below the material discharge port and prevents excessive wear.
[0060] In this embodiment, the material discharge buffer assembly 30 and the idler roller assembly 20 are arranged alternately below the material discharge port. Compared with the integral buffer plate in the prior art, this arrangement can absorb the impact force of the material falling from the discharge port, prevent excessive frictional resistance between the buffer plate and the conveyor belt, reduce the running resistance of the conveyor belt, and also help reduce the wear of the conveyor belt. The material discharge buffer assembly 30 and the idler roller assembly 20 should be arranged relatively compactly for stronger impact resistance.
[0061] The main body 10 of the guide chute can be made by welding or splicing metal plates. To facilitate installation and replacement of internal parts, the main body 10 of the guide chute can be designed as multiple modular units, each of which can be replaced independently. The top of the main body 10 of the guide chute is provided with a discharge port. The material enters from the discharge port and is then transported to the designated position by the conveyor belt.
[0062] The idler assembly 20 includes an idler bracket 21, a horizontally positioned horizontal idler 22, and two inclined idlers 23. The horizontal idler 22 and the two inclined idlers 23 form a support structure that is lower in the middle and higher on both sides, used to support the conveyor belt. The idler bracket 21, the horizontal idler 22, and the inclined idlers 23 can all be commercially available products, and their specific specifications and models are not limited. For example, both the horizontal idler 22 and the inclined idlers 23 can be polyurethane idlers.
[0063] The outer surfaces of the horizontal idler roller 22 and the inclined idler roller 23 located below the material inlet can be covered with a layer of rubber material, which can also play a role in buffering and absorbing impact. The supporting surfaces of the horizontal idler roller 22 and the inclined idler roller 23 can be flush with the supporting surfaces of the horizontal buffer plate 32 and the inclined buffer plate 33, or slightly higher than the supporting surfaces of the horizontal buffer plate 32 and the inclined buffer plate 33.
[0064] The material drop buffer assembly 30 includes a buffer bracket 31, a horizontal buffer plate 32, and an inclined buffer plate 33. The buffer bracket 31 is fixed to the ground, and the two inclined buffer plates 33 are arranged opposite each other on both sides of the horizontal buffer plate 32, forming a support structure that is low in the middle and high on both sides. This structure is used to support the conveyor belt and absorb the impact force of falling materials. The supporting surfaces of the horizontal buffer plate 32 and the inclined buffer plate 33 can be provided with a rubber layer, a polymer wear-resistant layer, etc.
[0065] The sealed material guide chute has a large number of horizontal idlers 22 and inclined idlers 23, and replacing the idlers is the most frequent task in the maintenance of the sealed material guide chute. In the existing technology, when replacing the idlers, a pry bar needs to be inserted under the belt, and the pry bar is pressed down to use leverage to lift the conveyor belt, so that maintenance personnel have enough space to remove the damaged idler and install the new idler. This replacement method is relatively laborious, and if the pry bar is not supported stably, it may cause injury to personnel, posing a safety hazard.
[0066] For easier replacement of the horizontal idler roller 22 and the inclined idler roller 23, please refer to [link / reference]. Figures 5 to 7 In some possible embodiments, the end of the inclined roller 23 adjacent to the horizontal roller 22 is hinged to the roller bracket 21. The roller assembly 20 also includes two first adjustment mechanisms 24, which correspond one-to-one with the inclined roller 23. The first adjustment mechanism 24 is used to drive the end of the corresponding inclined roller 23 away from the horizontal roller 22 to move up and down.
[0067] The first adjusting mechanism 24 can change the tilt angle of the tilting idler 23. When a tilting idler 23 or horizontal idler 22 on a certain idler assembly 20 is damaged, the first adjusting mechanism 24 on both sides of the idler assembly 20 can be controlled to extend, so that the idler assemblies 20 on both sides can lift the conveyor belt, making it easier for maintenance personnel to repair the idler assembly 20 at that position. Compared with using a pry bar to pry up the conveyor belt, this method is more convenient and safer.
[0068] The first adjusting mechanism 24 can be a driving component such as a hydraulic cylinder or an electric lifting rod, which can operate by connecting to a hydraulic system or power supply. Alternatively, the first adjusting mechanism 24 can also be a manual adjusting component such as a screw, which can be manually adjusted by workers using tools such as wrenches.
[0069] Please see Figure 5 and Figure 7In some possible embodiments, support plates are provided on both sides of the idler roller bracket 21, and first mounting holes are provided on the support plates. The first adjusting mechanism 24 includes a first screw 241 and a first locking nut 242. The first screw 241 passes through the first mounting hole in the vertical direction, and the top end of the first screw 241 is hinged to the end of the inclined idler roller 23 away from the horizontal idler roller 22. The first locking nut 242 is located above the support plate and is threadedly engaged with the first screw 241. To improve the stability of the connection, an anti-loosening nut can also be provided on the first screw 241. The anti-loosening nut is threadedly engaged with the first screw 241 and is located opposite to the first locking nut 242 on both sides of the support plate.
[0070] When it is necessary to adjust the height of the first screw 241, loosen the anti-loosening nut, and rotate the first locking nut 242 clockwise or counterclockwise to move the first screw 241 up and down. When it moves to the appropriate position, tighten the anti-loosening nut to fix the position of the first screw 241.
[0071] Please see Figure 6 and Figure 7 In some possible embodiments, the end of the inclined buffer plate 33 adjacent to the horizontal buffer plate 32 is hinged to the buffer bracket 31, and the end of the inclined buffer plate 33 away from the horizontal buffer plate 32 is provided with a limiting plate 331. The limiting plate 331 has a plurality of first limiting holes 332 along the rotation path of the inclined buffer plate 33. The buffer bracket 31 has a second limiting hole corresponding to the first limiting hole 332. During the rotation of the inclined buffer plate 33, the plurality of first limiting holes 332 are sequentially coaxially aligned with the second limiting hole. The second limiting hole and the corresponding first limiting hole 332 are detachably connected to a limiting member 34.
[0072] When it is necessary to change the relative angle of the two inclined buffer plates 33, the limiting member 34 can be removed, the inclined buffer plate 33 can be rotated to a suitable angle, and then the limiting member 34 can be inserted into the corresponding first limiting hole 332 and second limiting hole. The limiting member 34 can be a pin, bolt, or other component.
[0073] Please see Figures 1 to 3 , Figure 8 and Figure 9 In some possible embodiments, the discharge port is provided with a discharge pipe 12, the outlet of the discharge pipe 12 extends downward at an angle along the material conveying direction, and the cross-sectional area of the outlet of the discharge pipe 12 gradually shrinks from the edge to the center, which helps to concentrate the material to fall to the middle position of the conveyor belt.
[0074] Please see Figure 8 and Figure 9In some possible embodiments, the sealed guide trough further includes a material centering assembly 40, which includes baffle plates 41 and second adjustment mechanisms 42. The two baffle plates 41 are disposed opposite to each other on the two side walls of the material conveying channel and located below the outlet of the unloading pipe 12. The upper end of the baffle plate 41 is hinged to the inner wall of the material conveying channel, and a material discharge channel that gradually narrows from top to bottom is formed between the two baffle plates 41. The two second adjustment mechanisms 42 are respectively connected to the two baffle plates 41 and are used to drive the corresponding baffle plate 41 to rotate around the hinge axis with respect to the material conveying channel.
[0075] The material centering assembly 40 is used to limit the falling material, ensuring it lands in the middle of the conveyor belt and preventing uneven wear caused by uneven force on both sides. The material centering assembly 40 includes a baffle plate 41 and a second adjusting mechanism 42. The second adjusting mechanism 42 is used to adjust the tilt angle of the baffle plate 41. The second adjusting mechanism 42 can be an adjusting device driven by a power source, such as an electric telescopic rod or a hydraulic push rod, or it can be an adjusting device that does not require a power source, such as a screw.
[0076] Please see Figure 8 and Figure 9 In some possible embodiments, the side wall of the material conveying channel is provided with a clearance hole that penetrates the wall thickness of the guide trough body 10. The first adjustment mechanism 24 includes a mounting base 421, a second screw 422, and a second locking nut 423. The mounting base 421 is rotatably disposed on the outer side wall of the guide trough body 10 along a horizontal axis and is provided with a second mounting hole that penetrates its own thickness. The second screw 422 passes through the second mounting hole and the clearance hole and is hinged to the baffle plate 41. The second locking nut 423 is threadedly engaged with the portion of the second screw 422 located above the mounting base 421. Rotating the second locking nut 423 can adjust the length of the second screw 422 extending into the material conveying channel, thereby changing the tilt angle of the baffle plate 41.
[0077] Please see Figure 1 , Figure 2 and Figure 10 To prevent dust from spreading from both ends of the feed chute body 10, in some possible embodiments, dust curtains 50 are provided at both ends of the feed chute body 10. Each dust curtain 50 includes a curtain body 51, a lifting screw 52, and a third locking nut 53. The curtain body 51 is made of flexible rubber and hangs freely under gravity, covering the cross-section of the material conveying channel to prevent dust from spreading to the outside. One or more dust curtains 50 can also be installed inside the feed chute body 10 as needed.
[0078] The upper part of the lifting screw 52 is threadedly engaged with the main body 10 of the guide trough, and the lower part of the lifting screw 52 is rotatably connected to the curtain 51. The third locking nut 53 is located above the main body 10 of the guide trough and is threadedly engaged with the upper part of the lifting screw 52. A handwheel or handle is installed on the upper part of the lifting screw 52. When the bottom of the curtain 51 is worn, dust can easily escape from the gaps. At this time, the lifting screw 52 can be rotated by the handwheel or handle to lower the curtain 51 to an appropriate height and prevent dust from spreading to the outside.
[0079] Please see Figure 1 and Figure 2 In some possible embodiments, the main body 10 of the material guide chute is formed by sequentially splicing multiple material guide chute units 11. The material guide chute units 11 can be detachably connected by bolts for easy installation and disassembly. A material discharge port is provided at the top of one of the material guide chute units 11. The aforementioned dust curtain 50 can be installed on one or both sides of the material guide unit 11, or it can be omitted; the user can choose to install it as needed. The dust curtain 50 is placed inside the material conveying channel to cut off airflow and allow dust to settle.
[0080] Please see Figure 1 , Figure 2 and Figure 4 In some possible embodiments, at least one feed chute 11 has a return channel 13 at its top. The lower part of the return channel 13 is connected to the material conveying channel. A guide body 131 is provided inside the return channel 13. The guide body 131 and the inner wall of the return channel 13 form a tortuous return channel. The return channel extends the airflow length, which helps the suspended dust settle, and also helps the suspended particles collide and settle. The cross-section of the guide body 131 can be triangular or other shapes, and the path of the return channel can be C-shaped, S-shaped, or other shapes.
[0081] Please see Figure 1 , Figure 11 and Figure 12 The main body of the guide trough is formed by sequentially splicing multiple guide trough units 11. Each guide trough unit 11 has a split structure, including a top plate 111, a first side plate 112, a second side plate 113, and a third side plate 114. The top plate 111 is made of an arc-shaped plate, and both ends of the top plate 111 have connecting plates for connecting multiple top plates 111 end to end. Two first side plates 112 are arranged opposite each other on both sides of the top plate 111, and the upper part of the first side plate 112 is detachably connected to the top plate 111 by bolts or other means. The lower part of the first side plate 112 is detachably connected to the third side plate 114 by bolts or other fasteners, and the lower part of the third side plate 114 is connected to the second side plate 113.
[0082] The second side plate 113 is located below the first side plate 112, and the second side plate 113 and the first side plate 112 are spaced vertically apart. The outer side of the second side plate 113 is provided with an anti-overflow skirt 117. The upper part of the third side plate 114 abuts against the outer side of the first side plate 112, the middle part of the third side plate 114 is hinged to the upper part of the second side plate 113 by a pin, and the lower part of the third side plate 114 abuts against the inner side of the second side plate 113. The outer side of the third side plate 114 is provided with a plurality of studs 115 spaced along its own length. The studs 115 penetrate the third side plate 114 and are threaded with a fourth locking nut 116. Tightening the fourth locking nut 116 can make the upper part of the third side plate 114 abut against the lower part of the first side plate 112 and the lower part of the third side plate 114 abut against the upper part of the second side plate 113 to prevent dust leakage.
[0083] In this embodiment, the side plate structure adopts a split design, and the sealing connection between the third side plate 114 and the first side plate 112, the third side plate 114 and the second side plate 113 is achieved by connecting parts such as bolts, studs 115 and pins. This facilitates installation and maintenance while ensuring good sealing performance.
[0084] It is understood that the parts in the above embodiments can be freely combined or deleted to form different combined embodiments. The specific contents of each combined embodiment will not be repeated here. After this description, it can be considered that the present utility model specification has recorded each combined embodiment and can support different combined embodiments.
[0085] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A sealed material guide channel, characterized in that, include: The main body of the guide trough (10) has a material conveying channel inside, and a material discharge port is opened at the top of the material conveying channel; Multiple idler roller assemblies (20) are spaced apart below the material conveying channel along the material conveying direction. Each idler roller assembly (20) includes an idler roller bracket (21) and horizontal idler rollers (22) and inclined idler rollers (23) respectively disposed on the idler roller bracket (21). The horizontal idler rollers (22) are disposed in the middle of the idler roller bracket (21), and the two inclined idler rollers (23) are disposed opposite each other on both sides of the horizontal idler rollers (22). Multiple material discharge buffer assemblies (30) are disposed below the material discharge port and alternately arranged with the idler roller assembly (20). Each material discharge buffer assembly (30) includes a buffer bracket (31), and a horizontal buffer plate (32) and an inclined buffer plate (33) respectively disposed on the buffer bracket (31). The horizontal buffer plate (32) is disposed in the middle of the buffer bracket (31), and the two inclined buffer plates (33) are disposed opposite each other on both sides of the horizontal buffer plate (32). A conveyor belt is provided around the outside of the idler assembly (20) and the material drop buffer assembly (30).
2. The sealed material guide groove according to claim 1, characterized in that, The inclined roller (23) is hinged to the roller bracket (21) at one end adjacent to the horizontal roller (22). The roller assembly (20) also includes two first adjustment mechanisms (24), which correspond one-to-one with the inclined roller (23). The first adjustment mechanism (24) is used to drive the end of the corresponding inclined roller (23) away from the horizontal roller (22) to move up and down.
3. The sealed material guide groove according to claim 2, characterized in that, The idler roller bracket (21) is provided with support plates on both sides, and the support plates are provided with first mounting holes. The first adjustment mechanism (24) includes: A first screw (241) passes through the first mounting hole in the vertical direction, and the top end of the first screw (241) is hinged to the end of the inclined roller (23) away from the horizontal roller (22); and The first locking nut (242) is located above the support plate and is threadedly engaged with the first screw (241).
4. The sealed material guide groove according to claim 2, characterized in that, The inclined buffer plate (33) is hinged to the buffer bracket (31) at one end adjacent to the horizontal buffer plate (32). A limit plate (331) is provided at the end of the inclined buffer plate (33) away from the horizontal buffer plate (32). The limit plate (331) has a plurality of first limit holes (332) along the rotation path of the inclined buffer plate (33). The buffer bracket (31) has a second limit hole corresponding to the first limit hole (332). During the rotation of the inclined buffer plate (33), the plurality of first limit holes (332) are sequentially coaxially aligned with the second limit hole. The second limit hole and the corresponding first limit hole (332) are detachably connected to a limit member (34).
5. The sealed material guide groove according to claim 1, characterized in that, The discharge port is provided with a discharge pipe (12), the outlet of the discharge pipe (12) extends downward at an incline along the material conveying direction, and the cross-sectional area of the outlet of the discharge pipe (12) gradually shrinks from the edge to the center.
6. The sealed material guide groove according to claim 5, characterized in that, The sealed feed chute further includes a material alignment component (40), which includes: Two baffles (41) are disposed opposite to each other on the two side walls of the material conveying channel and located below the outlet of the discharge pipe (12). The upper end of the baffles (41) is hinged to the inner wall of the material conveying channel; and Two second adjustment mechanisms (42) are respectively connected to the two baffles (41) and are used to drive the corresponding baffles (41) to rotate around the hinge axis with the material conveying channel.
7. The sealed material guide groove according to claim 6, characterized in that, The side wall of the material conveying channel is provided with a clearance hole that penetrates the wall thickness of the guide trough body (10), and the second adjustment mechanism (42) includes: Mounting base (421) is rotatably disposed on the outer side wall of the guide trough body (10) along the horizontal axis, and has a second mounting hole that penetrates its own thickness; The second screw (422) passes through the second mounting hole and the clearance hole, and is hinged to the baffle plate (41); and The second locking nut (423) engages with the second screw (422) located above the mounting base (421) via a threaded connection.
8. The sealed material guide groove according to claim 1, characterized in that, Dust curtains (50) are respectively provided at both ends of the material guide trough body (10) and inside the material guide trough body (10). The dust curtains (50) include: A curtain (51) vertically covers the cross-section of the material conveying channel; A lifting screw (52), the upper part of which is threadedly engaged with the main body (10) of the guide trough, and the lower part of which is rotatably connected to the curtain body (51); and The third locking nut (53) is located above the main body (10) of the guide trough and is threaded into the upper part of the lifting screw (52).
9. The sealed material guide groove according to claim 8, characterized in that, The main body (10) of the material guide trough is formed by sequentially splicing multiple material guide trough units (11). At least one of the material guide trough units (11) has a return trough (13) on its top. The lower part of the return trough (13) is connected to the material conveying channel. A guide body (131) is provided inside the return trough (13). The guide body (131) and the inner wall of the return trough (13) form a tortuous return channel.
10. The sealed material guide groove according to claim 1, characterized in that, The main body (10) of the guide trough is formed by sequentially splicing multiple guide trough units (11), and each guide trough unit (11) includes: Top plate (111); Two first side plates (112) are arranged opposite to each other, and the upper part of the first side plate (112) is connected to the top plate (111); Two opposing second side plates (113) are provided, the second side plate (113) is located below the first side plate (112), and the second side plate (113) and the first side plate (112) are spaced vertically apart. An anti-overflow skirt (117) is provided on the outer side of the second side plate (113). Two opposing third side plates (114) are arranged such that the upper part of the third side plate (114) abuts against the outer side of the first side plate (112), the middle part of the third side plate (114) is hinged to the second side plate (113), and the lower part of the third side plate (114) abuts against the inner side of the second side plate (113). The outer side of the third side plate (114) is provided with a plurality of studs (115) spaced apart along its own length direction. The studs (115) penetrate the third side plate (114) and are threaded with a fourth locking nut (116).