A coal preparation plant scraper noise reduction system and a method of using the same

Abstract

The application discloses a coal preparation plant scraper noise reduction system and a use method thereof, and comprises a first function mechanism, the first function mechanism comprises a bottom frame and an adjusting part, the bottom frame is provided with two, each bottom frame is provided with a sliding frame at the top, two bottom columns are slidably arranged in each sliding frame, a first side plate and a second side plate are slidably arranged between the top ends of each two bottom columns, and two connecting plates are arranged between the outer surfaces of the first side plate and the second side plate. In the application, when in use, the existing water-based damping material is coated by the first coating plate and the second coating plate, and an effective sound insulation plate effect is formed, the bottom frame is conveniently placed under the existing scraper, the adjusting bolt is adjusted by rotating, the adjusting bolt can effectively drive the connecting rod to rotate by cooperating with the first bevel gear and the second bevel gear, and the rotating connecting rod can drive the adjusting worm to rotate.

Description

Technical Field

[0001] This invention belongs to the field of noise reduction equipment technology, specifically a noise reduction system for a scraper conveyor in a coal preparation plant and its usage method. Background Technology

[0002] The trolley is a transport machine used in coal mining faces. It is mainly used for transporting coal in the mining face and in the mining area roadway. It can also be used in coal roadways and semi-coal-rock roadway excavation faces. It can transport upwards or downwards. The upward transport angle is generally not more than 35 degrees, and the downward transport angle is generally not more than 25 degrees. In practice, it is advisable not to exceed 20 degrees.

[0003] However, in the existing technology, the scraper machine generates a lot of noise during use because the scraper and the linkage structure come into direct contact with the inner wall of the equipment. At the same time, the movement of solid minerals also generates a lot of noise. As a result, the existing scraper machine has an adverse impact on the surrounding environment during actual use, and also affects the physical condition of construction workers, which affects the overall construction process. Summary of the Invention

[0004] The purpose of this invention is to provide a noise reduction system for scraper conveyors in coal preparation plants and its usage method, which can effectively reduce the noise generated during the use of existing scraper conveyors, effectively prevent the construction environment from affecting the noise reduction effect, and can be easily installed and set up.

[0005] The technical solution adopted in this invention is as follows: A noise reduction system for a scraper conveyor in a coal preparation plant, comprising: a first functional mechanism, the first functional mechanism including a base frame and an adjusting component, two base frames are provided, each base frame has a sliding frame connected to its top, two base columns are slidably inserted inside each sliding frame, a first side plate and a second side plate are slidably sleeved between the tops of each pair of two base columns, two connecting plates are snapped between the outer surfaces of one side of the first side plate and the second side plate, a first moving groove and a second moving groove are respectively opened on the top of the first side plate and the second side plate, a set of connecting rods are slidably inserted on both outer surfaces of the first side plate and the second side plate, wherein a first extension plate is fixedly connected between one end of each of the two sets of connecting rods, and a first moving groove is also opened on the top of each of the first extension plates, and a second extension plate is fixedly connected between one end of the other two sets of connecting rods, and a second moving groove is also opened on the top of each of the second extension plates, a set of connecting rods is also slidably inserted on both outer surfaces of each connecting plate, and a third extension plate is fixedly connected between one end of each set of connecting rods, the adjusting component being disposed on the base frame; and

[0006] The second functional mechanism includes a movable frame, multiple top rods, multiple extension frames, and a sound insulation component. There are four movable frames, divided into two groups. Two movable frames are fixedly connected to their tops with two connecting pieces, and the other two movable frames are fixedly connected to their tops with connecting blocks. Each extension frame is also fixedly connected to its top with two connecting pieces and a connecting block. The two movable frames in each group are slidably engaged at one end via connecting pieces and connecting blocks. The four movable frames are slidably inserted into two first movable slots and two second movable slots. Each top rod is slidably inserted between its corresponding connecting piece and connecting block. Two top plates are slidably fitted onto the outer surface of each top rod. A first coating plate is fixedly connected to the top of each top plate. The sound insulation component is disposed on the extension frames and movable frames.

[0007] The adjusting component includes adjusting threaded rods, and there are two sets of adjusting threaded rods. Each set has two adjusting threaded rods, and each set of two adjusting threaded rods is rotatably connected to the bottom surface inside the corresponding bottom frame. One end of each adjusting threaded rod is threadedly connected to the corresponding bottom column.

[0008] Each of the adjusting threaded rods has an adjusting worm gear fitted on its outer surface, and each of the bottom frames has a connecting rod rotatably connected between its two sides and the inner surface wall. Each connecting rod has two adjusting worms fitted on its outer surface, and each adjusting worm meshes with a corresponding adjusting worm gear.

[0009] Each of the connecting rods has a first bevel gear fitted on its outer surface, each of the bottom frames has an adjusting bolt rotatably connected to its top, and each adjusting bolt has a second bevel gear fitted on its outer surface. Each second bevel gear meshes with a corresponding first bevel gear.

[0010] Among them, two adjustment blocks are rotatably connected between the outer surfaces of the two bottom columns, and a third side plate is slidably connected between one end of the two adjustment blocks. A set of connecting rods is also slidably inserted on both outer surfaces of the third side plate, and a fourth extension plate is fixedly connected between one end of each set of connecting rods. Two third moving slots are opened on the top of each fourth extension plate.

[0011] One of the sliding frames has a support threaded rod rotatably connected between the opposite outer surfaces on both sides. The outer surface of the support threaded rod is threaded with a threaded tube, and one end of the threaded tube is rotatably connected to the bottom of the third side plate.

[0012] The sound insulation components are provided in multiple sets. Each set of sound insulation components includes a first mounting frame and a second mounting frame. The first mounting frame and the second mounting frame are slidably embedded between the bottom of the corresponding moving frame and the extension frame. A second coating plate is inserted on one outer surface of the first mounting frame. Placement frames are inserted on both outer surfaces of the second mounting frame. A first microporous sound-absorbing plate is fixedly connected inside each placement frame. A second microporous sound-absorbing plate is fixedly connected inside the second mounting frame.

[0013] Among them, two protective frames are slidably inserted between the four third moving slots, and two top rods are also inserted between the two protective frames and their inner surface walls, and two grids are slidably sleeved between the outer surfaces of the two top rods.

[0014] Each of the movable frames has a positioning bolt threadedly connected to one side of its outer surface, and the protective frame also has two positioning bolts threadedly connected to both sides of its outer surface. Each positioning bolt has a positioning piece rotatably connected to its bottom end.

[0015] A method for using a noise reduction system for a scraper conveyor in a coal preparation plant includes the following steps:

[0016] S1. Structural Adjustment: Existing water-based damping material is applied through the first and second coating plates to form a sound insulation board effect. The bottom frame is conveniently placed under the existing scraper machine. By rotating the adjusting bolt, the adjusting bolt can cooperate with the first and second bevel gears to drive the connecting rod to rotate. The rotating connecting rod can drive the adjusting worm gear to rotate, which in turn cooperates with the adjusting worm wheel to drive the adjusting threaded rod to rotate. This allows the height of the corresponding bottom column to be adjusted. The bottom column can then be used to adjust the angle of the first and second side plates, allowing the existing scraper machine to pass through the equipment.

[0017] S2. Noise Reduction Adaptation: Based on the actual structure of the existing scraper conveyor, the positions of the moving frame, extension frame, and protective frame are adjusted under the positional constraints of the first moving groove, the second moving groove, and the third moving groove, so that the equipment can surround the existing scraper conveyor without directly contacting it. Therefore, when the existing scraper conveyor generates noise during normal operation, the first microporous sound-absorbing plate, the second microporous sound-absorbing plate, the first coating plate, and the second coating plate can absorb the noise.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0019] In this invention, during use, existing water-based damping materials are applied through the first and second coating plates to form an effective sound insulation panel. The bottom frame is conveniently placed under the existing scraper conveyor. By rotating the adjusting bolt, the adjusting bolt, in conjunction with the first and second bevel gears, effectively drives the connecting rod to rotate. The rotating connecting rod drives the adjusting worm gear to rotate, which in turn, in conjunction with the adjusting worm wheel, effectively drives the adjusting threaded rod to rotate. This effectively adjusts the height of the corresponding bottom column, and the bottom column allows for effective adjustment of the angles of the first and second side plates, enabling the existing scraper conveyor to effectively pass through the equipment's interior. Based on the actual structure of the existing scraper conveyor, the first moving groove, the second moving groove, and the third... The movable trough effectively adjusts the positions of the movable frame, extension frame, and protective frame, allowing the equipment to effectively surround the existing scraper conveyor without direct contact. When the existing scraper conveyor generates noise during normal operation, the first microporous sound-absorbing plate, second microporous sound-absorbing plate, first coating plate, and second coating plate effectively absorb and process the noise. Furthermore, the equipment structure can be easily adjusted according to actual usage, enabling it to meet the needs of existing scraper conveyors with different structures. Simultaneously, it allows for convenient replacement and maintenance of structural components, ensuring efficient operation and effectively reducing the impact of noise on the surrounding construction environment. Attached Figure Description

[0020] Figure 1 This is a frontal perspective view of the present invention;

[0021] Figure 2 This is a bottom-view perspective view of the present invention;

[0022] Figure 3 This is a rear perspective view of the present invention;

[0023] Figure 4 This is a frontal sectional perspective view of the present invention;

[0024] Figure 5 This is a frontal sectional view of the first functional mechanism of the present invention.

[0025] Figure 6 For the present invention Figure 5 Enlarged view of section A in the middle;

[0026] Figure 7 For the present invention Figure 5 Enlarged view of section B;

[0027] Figure 8 For the present invention Figure 5 Enlarged view of section C;

[0028] Figure 9For the present invention Figure 5 Enlarged view of section D in the middle;

[0029] Figure 10 This is a frontal sectional view of the second functional mechanism of the present invention.

[0030] Figure 11 For the present invention Figure 10 Enlarged view of section E in the middle;

[0031] Figure 12 For the present invention Figure 10 Enlarged view of section F in the middle;

[0032] Figure 13 For the present invention Figure 10 Enlarged view of section G in the middle;

[0033] Figure 14 For the present invention Figure 10 Enlarged view of section H in the middle.

[0034] Markings in the diagram: 1. First functional mechanism; 101. Base frame; 102. Sliding frame; 103. Connecting rod; 104. Adjusting worm gear; 105. Adjusting threaded rod; 106. Adjusting bolt; 107. Supporting threaded rod; 108. Base column; 109. Threaded tube; 110. First side plate; 111. First extension plate; 112. Adjusting block; 113. Third side plate; 114. Connecting rod; 115. Fourth extension plate; 116. Connecting plate; 117. Second side plate; 118. ... 119. Second extension plate; 2. Third extension plate; 2. Second functional mechanism; 201. Moving frame; 202. Connecting piece; 203. Connecting block; 204. First mounting frame; 205. Second coating plate; 206. Second mounting frame; 207. Second microporous sound-absorbing plate; 208. Placement frame; 209. First microporous sound-absorbing plate; 210. Extension frame; 211. Top rod; 212. Top plate; 213. First coating plate; 214. Positioning piece; 215. Protective frame; 216. Grille. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0036] Example 1

[0037] Reference Figures 1-14A noise reduction system for a scraper conveyor in a coal preparation plant includes: a first functional mechanism 1 and a second functional mechanism 2. The first functional mechanism 1 includes a base frame 101 and adjusting components. The base frame 101 provides a mounting foundation for other functional components of the equipment, enabling the equipment to stably perform its intended functions. Two base frames 101 are provided, and a sliding frame 102 is connected to the top of each base frame 101. The sliding frame 102 facilitates the installation of base columns 108. Two base columns 108 are slidably inserted inside each sliding frame 102. The base columns 108 facilitate the installation of other functional components of the equipment. A first side plate 110 and a second side plate 117 are slidably fitted between the tops of the two base columns 108 in each group. The first side plate 110... To facilitate the installation of other functional components of the equipment, the second side plate 117 is used in conjunction with the first side plate 110. Two connecting plates 116 are snapped between the outer surfaces of one side of the first side plate 110 and the second side plate 117. The connecting plates 116 facilitate the installation and disassembly of the equipment and allow for easy adjustment of its structure according to actual usage. The tops of the first side plate 110 and the second side plate 117 are respectively provided with a first moving groove and a second moving groove. The first moving groove, in conjunction with the second moving groove, facilitates the installation of other functional components of the equipment. A set of connecting rods 114 is slidably inserted into the outer surfaces of both sides of the first side plate 110 and the second side plate 117. The connecting rods 114 facilitate the installation of other functional components of the equipment. The two sets of connecting rods 114... 4. Each of the two connecting rods 114 has a first extension plate 111 fixedly connected to one end. The establishment of the first extension plate 111, together with the second extension plate 118 and the third extension plate 119, facilitates the adjustment of the equipment's own structure and effectively improves the equipment's versatility. Each first extension plate 111 also has a first moving groove on its top. The other two sets of connecting rods 114 are fixedly connected to the second extension plate 118 at one end. Each second extension plate 118 also has a second moving groove on its top. Each connecting plate 116 has a set of connecting rods 114 slidably inserted into the outer surfaces on both sides. Each set of connecting rods 114 has a third extension plate 119 fixedly connected to one end. The adjustment component is set on the bottom frame 101. The second functional mechanism 2 includes a moving frame 201 and multiple top rods 2. 11. Multiple extension frames 210 and sound insulation components. The installation of the movable frame 201 facilitates the installation of other functional components of the equipment. The installation of the top rod 211 facilitates the installation of other functional components of the equipment. The installation of the extension frames 210 facilitates the installation of other functional components of the equipment. There are four movable frames 201 in total, divided into two groups. Two movable frames 201 are fixedly connected to the top with two connecting pieces 202. The connecting pieces 202, together with the connecting blocks 203, facilitate the splicing of the movable frames 201 and the extension frames 210. The top of the other two movable frames 201 are fixedly connected with connecting blocks 203. Each extension frame 210 is also fixedly connected with two connecting pieces 202 and connecting blocks 203.Each set of two movable frames 201 are slidably engaged at one end by a connecting piece 202 and a connecting block 203. The four movable frames 201 are slidably inserted into two first movable slots and two second movable slots, respectively. Each top rod 211 is slidably inserted between the corresponding connecting piece 202 and connecting block 203. Two top plates 212 are slidably fitted onto the outer surface of each top rod 211. The top plates 212 facilitate the assembly and use of the equipment and also facilitate the installation of the first coating plate 213. The top of each top plate 212 is fixedly connected to the first coating plate 213. Sound insulation components are installed on the extension frame 210 and the movable frames 201.

[0038] Reference Figures 4-14The adjusting components include adjusting threaded rods 105, which effectively adjust the working height of the base post 108. Two sets of adjusting threaded rods 105 are provided, with two rods in each set. Each set of two adjusting threaded rods 105 is rotatably connected to the inner bottom surface of the corresponding base frame 101, and one end of each adjusting threaded rod 105 is threaded to the corresponding base post 108. An adjusting worm gear 104 is fitted onto the outer surface of each adjusting threaded rod 105. The adjusting worm gear 104, in conjunction with the adjusting worm, allows the adjusting bolt 106 to effectively drive the adjusting threaded rod 105 to rotate. A connecting rod 103 is rotatably connected between the inner surfaces of both sides of each base frame 101, facilitating the installation of the adjusting worm. The assembly includes two adjusting worm gears fitted on the outer surface of each linkage 103, each adjusting worm gear meshing with a corresponding adjusting worm wheel 104. A first bevel gear is fitted on the outer surface of each linkage 103. An adjusting bolt 106 is rotatably connected to the top of each base frame 101, and a second bevel gear is fitted on the outer surface of each adjusting bolt 106, each second bevel gear meshing with a corresponding first bevel gear. Two adjusting blocks 112 are rotatably connected between the outer surfaces of two base posts 108. A third side plate 113 is slidably connected between one end of each adjusting block 112. A set of connecting rods 114 is slidably inserted into the outer surfaces of both sides of the third side plate 113, and a fourth extension plate 115 is fixedly connected between one end of each set of connecting rods 114. The installation of 115 facilitates the assembly and installation of the equipment. Each fourth extension plate 115 has two third moving slots on its top. A supporting threaded rod 107 is rotatably connected between the outer surfaces of the two sides of a sliding frame 102. The supporting threaded rod 107, in conjunction with the threaded tube 109, effectively adjusts the operating angle of the third side plate 113. The outer surface of the supporting threaded rod 107 is threadedly connected to the threaded tube 109, with one end of the threaded tube 109 rotatably connected to the bottom of the third side plate 113. Multiple sets of sound insulation components are provided. Each set includes a first mounting frame 204 and a second mounting frame 206. The first mounting frame 204 and the second mounting frame 206 are slidably embedded between the bottom of the corresponding moving frame 201 and the extension frame 210. The first mounting frame 204... A second coating plate 205 is inserted into one side of the outer surface of the second mounting frame 206. Placement frames 208 are inserted into both sides of the outer surface of the second mounting frame 206. A first microporous sound-absorbing plate 209 is fixedly connected inside each placement frame 208. A second microporous sound-absorbing plate 207 is fixedly connected inside the second mounting frame 206. Two protective frames 215 are slidably inserted between the four third moving slots. The establishment of the protective frames 215, together with the grille 216, can effectively protect the existing scraper conveyor's power structure and facilitate the inspection and maintenance of the existing scraper conveyor. Two top rods 211 are also inserted between the inner surfaces of the two protective frames 215, and two grilles 216 are slidably sleeved between the outer surfaces of the two top rods 211. A positioning bolt is threadedly connected to one side of the outer surface of each moving frame 201.Both sides of the protective frame 215 are also threaded with two positioning bolts. Each positioning bolt has a positioning piece 214 rotatably connected to its bottom end. The positioning pieces 214 effectively fix and restrict the position of the movable frame 201 and the protective frame 215.

[0039] The following provides a detailed description of the usage method of a noise reduction system for a scraper conveyor in a coal preparation plant, as provided in an embodiment of the present invention. The usage method includes the following steps:

[0040] Step 1, Structural Adjustment: Using the first coating plate 213 and the second coating plate 205, the existing water-based damping material is applied to form an effective sound insulation panel. The bottom frame 101 is conveniently placed under the existing scraper machine. By rotating the adjusting bolt 106, the adjusting bolt 106 can work with the first bevel gear and the second bevel gear to effectively drive the connecting rod 103 to rotate. The rotating connecting rod 103 can drive the adjusting worm gear to rotate, which in turn works with the adjusting worm wheel 104 to effectively drive the adjusting threaded rod 105 to rotate. This effectively adjusts the height of the corresponding bottom column 108, and the bottom column 108 can effectively adjust the angle of the first side plate 110 and the second side plate 117, allowing the existing scraper machine to effectively pass through the equipment.

[0041] Step Two: Noise Reduction Adaptation: Based on the existing scraper conveyor's actual structure, the positions of the moving frame 201, extension frame 210, and protective frame 215 are effectively adjusted within the positional constraints of the first, second, and third moving slots. This allows the equipment to effectively surround the existing scraper conveyor without direct contact. When noise is generated during normal operation of the existing scraper conveyor, the first microporous sound-absorbing plate 209, the second microporous sound-absorbing plate 207, the first coating plate 213, and the second coating plate 205 effectively absorb the noise. Furthermore, the equipment structure can be easily adjusted according to actual usage, enabling it to meet the needs of existing scraper conveyors with different structures. Simultaneously, it allows for convenient replacement and maintenance of structural components, ensuring efficient operation and effectively reducing the impact of noise on the surrounding construction environment.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A noise reduction system for a scraper conveyor in a coal preparation plant, characterized in that, include: The first functional mechanism includes a base frame and an adjusting component. Two base frames are provided, each with a sliding frame connected to its top. Two base columns are slidably inserted inside each sliding frame. A first side plate and a second side plate are slidably fitted between the tops of each pair of base columns. Two connecting plates are engaged between the outer surfaces of one side of the first and second side plates. A first moving groove and a second moving groove are respectively formed on the tops of the first and second side plates. A set of connecting rods is slidably inserted into the outer surfaces of both sides of the first and second side plates. A first extension plate is fixedly connected to one end of each of the two sets of connecting rods. A first moving groove is also formed on the top of each first extension plate. A second extension plate is fixedly connected to one end of the other two sets of connecting rods. A second moving groove is also formed on the top of each second extension plate. A set of connecting rods is slidably inserted into the outer surfaces of both sides of each connecting plate, and a third extension plate is fixedly connected to one end of each set of connecting rods. The adjusting component is located on the base frame. The second functional mechanism includes a movable frame, multiple top rods, multiple extension frames, and sound insulation components. There are four movable frames, divided into two groups. Two movable frames have two connecting pieces fixedly connected to their tops, and the other two have connecting blocks fixedly connected to their tops. Each extension frame also has two connecting pieces and a connecting block fixedly connected to its top. The two movable frames in each group are slidably engaged at one end via the connecting pieces and connecting blocks. The four movable frames are slidably inserted into two first movable slots and two second movable slots, respectively. Each top rod is slidably inserted between its corresponding connecting piece and connecting block. Two top plates are slidably fitted onto the outer surface of each top rod, and a first coating plate is fixedly connected to the top of each top plate. The sound insulation components are located on the extension frames and movable frames. The adjusting components include adjusting threaded rods, with two sets of adjusting threaded rods in each set, each set containing two adjusting threaded rods. Each set of two adjusting threaded rods is rotatably connected to the bottom surface inside the corresponding base frame, and one end of each adjusting threaded rod is threadedly connected to the corresponding base column. Two adjusting blocks are rotatably connected between the outer surfaces of the two base columns, and a third side plate is slidably connected between one end of the two adjusting blocks. A set of connecting rods is also slidably inserted into the outer surfaces of both sides of the third side plate, and a fourth extension plate is fixedly connected between one end of each set of connecting rods. Two third moving slots are opened at the top of each fourth extension plate, and a supporting threaded rod is rotatably connected between the outer surfaces of both sides of one of the sliding frames. A threaded tube is threadedly connected to the outer surface of the supporting threaded rod, and one end of the threaded tube is rotatably connected to the bottom of the third side plate.

2. The noise reduction system for a scraper conveyor in a coal preparation plant as described in claim 1, characterized in that: Each adjusting threaded rod has an adjusting worm gear fitted on its outer surface. Each bottom frame has a connecting rod rotatably connected between its two sides and the inner surface wall. Each connecting rod has two adjusting worms fitted on its outer surface, and each adjusting worm meshes with the corresponding adjusting worm gear.

3. The noise reduction system for a scraper conveyor in a coal preparation plant as described in claim 2, characterized in that: Each linkage rod has a first bevel gear fitted on its outer surface, and each bottom frame has an adjusting bolt rotatably connected to its top. Each adjusting bolt has a second bevel gear fitted on its outer surface, and each second bevel gear meshes with a corresponding first bevel gear.

4. The noise reduction system for a scraper conveyor in a coal preparation plant as described in claim 3, characterized in that: The sound insulation components are provided in multiple sets. Each set of sound insulation components includes a first mounting frame and a second mounting frame. The first mounting frame and the second mounting frame are slidably embedded between the bottom of the corresponding moving frame and the extension frame. A second coating plate is inserted on one outer surface of the first mounting frame. Placement frames are inserted on both outer surfaces of the second mounting frame. A first microporous sound-absorbing plate is fixedly connected inside each placement frame. A second microporous sound-absorbing plate is fixedly connected inside the second mounting frame.

5. The noise reduction system for a scraper conveyor in a coal preparation plant as described in claim 4, characterized in that: Two protective frames are slidably inserted between the four third moving slots. Two top rods are also inserted between the two protective frames and their inner surfaces. Two grids are slidably fitted between the outer surfaces of the two top rods.

6. The noise reduction system for a scraper conveyor in a coal preparation plant as described in claim 5, characterized in that: Each movable frame has a positioning bolt threaded on one side of its outer surface, and the protective frame also has two positioning bolts threaded on both sides of its outer surface. Each positioning bolt has a positioning piece rotatably connected to its bottom end.

7. A method for using a noise reduction system for a scraper conveyor in a coal preparation plant, characterized in that, The method applied to the noise reduction system of a scraper conveyor in a coal preparation plant as described in claim 6 includes the following steps: S1. Structural Adjustment: Existing water-based damping material is applied through the first and second coating plates to form a sound insulation board effect. The bottom frame is conveniently placed under the existing scraper machine. By rotating the adjusting bolt, the adjusting bolt can cooperate with the first and second bevel gears to drive the connecting rod to rotate. The rotating connecting rod can drive the adjusting worm gear to rotate, which in turn cooperates with the adjusting worm wheel to drive the adjusting threaded rod to rotate. This allows the height of the corresponding bottom column to be adjusted. The bottom column can then be used to adjust the angle of the first and second side plates, allowing the existing scraper machine to pass through the equipment. S2. Noise Reduction Adaptation: Based on the actual structure of the existing scraper conveyor, the positions of the moving frame, extension frame, and protective frame are adjusted under the positional constraints of the first moving groove, the second moving groove, and the third moving groove, so that the equipment can surround the existing scraper conveyor without directly contacting it. Therefore, when the existing scraper conveyor generates noise during normal operation, the first microporous sound-absorbing plate, the second microporous sound-absorbing plate, the first coating plate, and the second coating plate can absorb the noise.

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