A scraper chain structure for mining machinery

Abstract

This invention relates to the field of conveying equipment technology, specifically a scraper chain structure for mining machinery, comprising a conveyor body, a conveying structure, a cleaning structure, a guiding structure, a lifting structure, a limiting structure, and an installation structure. The guiding structure slows down the material's entry speed into the conveyor body, preventing it from impacting the scraper due to excessive material speed and thus preventing scraper damage. The limiting structure facilitates the fixing of the rotating adjusting shaft, improving stability. The conveying structure facilitates material conveying, and the guiding components in the conveying structure prevent increased friction between the scraper and the conveyor body when the scraper is subjected to force on one side, thereby increasing scraper lifespan and ensuring conveying stability. The installation structure facilitates the installation of guide rods on the scraper, improving stability. The cleaning structure facilitates the removal of material adhering to the scraper, preventing material adhesion from affecting material conveying efficiency.

Description

Technical Field

[0001] This invention relates to the field of conveying equipment technology, specifically a scraper chain structure for mining machinery. Background Technology

[0002] Scraper chains for mining machinery are a key component of core conveying equipment in mines, such as scraper conveyors and transfer conveyors. They consist of a series of chain link units connected by hinges, with a scraper installed on each link unit. Driven by a power unit, they circulate to achieve continuous conveying of bulk materials such as ore and coal. They are the "throat" component for material transfer in mining operations, directly affecting the efficiency and continuity of mining.

[0003] During material conveying, because the scraper is not equipped with a guide component, when the material is subjected to a large force on one side, the scraper will become skewed, which will increase the friction between its edge and the inner wall of the scraper conveyor during movement, thereby reducing the service life of the scraper. In addition, if sticky materials are encountered during the conveying process, too much material will adhere to the scraper after the conveying is completed, affecting the subsequent conveying efficiency. At the same time, when materials that have been crushed or processed by another device enter the scraper conveyor directly, the impact speed is too fast, which will generate a large impact force on the scraper, which can easily cause the scraper to be crushed and damaged. Summary of the Invention

[0004] To address the problems in the prior art, this invention provides a scraper chain structure for mining machinery.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a scraper chain structure for mining engineering machinery, including a conveyor body, a conveying structure installed on the conveyor body, a cleaning structure installed on the conveyor body, a material guiding structure installed on the conveyor body, and a lifting structure installed between the cleaning structure and the conveyor body;

[0006] The conveying structure includes two mounting shafts rotatably connected to the conveyor body and two sprockets fixedly connected to the mounting shafts. A chain is installed between each pair of sprockets, and multiple scrapers are installed on the chain. Guide rods are detachably connected to the scrapers. A guide rail is fixedly connected to the conveyor body. The guide rods are slidably connected to the guide rails. Two fixed shafts are fixedly connected to the guide rods, and guide wheels are rotatably connected to the fixed shafts. The guide wheels are in rolling cooperation with the guide rails.

[0007] Specifically, a first driving component is installed on the conveyor body, and one of the mounting shafts is driven by the first driving component.

[0008] Specifically, the guide rod is mounted on the scraper via an installation structure, which includes an installation rod slidably connected to the guide rod and a roller rotatably connected to the installation rod. Four positioning sleeves are fixedly connected to the scraper, and each guide rod is inserted into two positioning sleeves. The installation rod engages with the positioning sleeves.

[0009] Specifically, the guide rod is threaded with a lead screw, and four connecting discs are fixedly connected to the lead screw. The connecting discs are inclined, and the roller rolls in cooperation with two of the connecting discs. The lead screw is provided with an identification block.

[0010] Specifically, the cleaning structure includes two adjusting blocks slidably connected to the conveyor body and two connecting shafts rotatably connected between the two adjusting blocks. A cleaning brush is installed on the connecting shaft, and a gear is fixedly connected to the connecting shaft, with the two gears meshing with each other.

[0011] Specifically, a connecting box is fixedly connected to one of the adjusting blocks, and the connecting shaft is rotatably connected to the connecting box. A mounting base is fixedly connected to one of the adjusting blocks, and a second driving component is installed on the mounting base. One of the connecting shafts is driven by the second driving component. A guide plate is fixedly connected to the adjusting block, and the guide plate is slidably connected to the conveyor body. A connecting pipe is installed between the two guide plates, and multiple nozzles are installed on the connecting pipe.

[0012] Specifically, the adjusting block is lifted by a lifting structure, which includes a cam fixedly connected to one of the connecting shafts and a drive shaft rotatably connected to the conveyor body, with the drive shaft and cam in rolling engagement.

[0013] Specifically, a guide shaft is fixedly connected to the conveyor body, and a second spring is fixedly connected between the adjusting block and the conveyor body.

[0014] Specifically, the material guiding structure includes a hopper fixedly connected to the conveyor body and two adjusting shafts rotatably connected to the hopper. A connecting frame is fixedly connected to the adjusting shaft, a guide plate is slidably connected to the connecting frame, a fixed seat is fixedly connected to the guide plate, the fixed seat is slidably connected to the connecting frame, a vibration motor is installed on the fixed seat, a sliding plate is fixedly connected to the guide plate, the sliding plate is slidably connected to the connecting frame, and a first spring is fixedly connected between the guide plate and the connecting frame.

[0015] Specifically, the adjusting shaft is fixed by a limiting structure, which includes two limiting shafts fixedly connected to the hopper and a limiting block engaged with the limiting shafts. The limiting block has multiple limiting holes arranged in a circular array about the center of the adjusting shaft. The limiting shaft engages with two of the limiting holes. A sliding rod is fixedly connected to the limiting block and is slidably connected to the adjusting shaft. A slider is fixedly connected to the sliding rod and is slidably connected to the adjusting shaft. A third spring is fixedly connected between the slider and the adjusting shaft.

[0016] The beneficial effects of this invention are:

[0017] (1) The scraper chain structure for mining machinery described in this invention has a material guiding structure on the conveyor body and an adjusting shaft fixed by a limiting structure. The material guiding structure can slow down the material falling into the conveyor body, thereby avoiding the scraper from being impacted by the material falling too fast and preventing the scraper from being damaged. The limiting structure facilitates the fixing of the adjusting shaft after rotation, thus improving stability.

[0018] (2) The scraper chain structure for mining machinery described in this invention has a conveying structure on the conveyor body. The guide rod is installed on the scraper through the mounting structure. The setting of the conveying structure facilitates the material conveying. At the same time, the guide component in the conveying structure can prevent the scraper from increasing the friction between the scraper and the conveyor body when the scraper is subjected to force on one side, thereby improving the service life of the scraper and ensuring the stability of the conveying. The setting of the mounting structure facilitates the installation of the guide rod on the scraper, which improves the stability.

[0019] (3) The scraper chain structure for mining machinery described in this invention has a cleaning structure on the conveyor body and a lifting structure between the cleaning structure and the conveyor body. The cleaning structure facilitates the cleaning of materials adhering to the scraper, avoiding the material adhering to the scraper and affecting the material conveying efficiency. The lifting structure facilitates the adjustment of the position of the cleaning brush, so as to clean different positions of the scraper and improve the cleaning effect. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and examples.

[0021] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of a scraper chain structure for mining machinery provided by the present invention.

[0022] Figure 2 for Figure 1 The diagram shown is an enlarged view of the structure of part A.

[0023] Figure 3 for Figure 1 The diagram shown is an enlarged view of the structure of section B.

[0024] Figure 4 This is a schematic diagram of the connection structure between the limiting block and the sliding rod of the present invention;

[0025] Figure 5 This is a schematic diagram of the connection structure between the hopper and the conveyor body of the present invention;

[0026] Figure 6 for Figure 5 The diagram shown is an enlarged view of the C-section structure.

[0027] Figure 7 This is a schematic diagram of the connection structure between the connecting pipe and the guide plate of the present invention;

[0028] Figure 8 for Figure 7 The diagram shown is an enlarged view of the structure of part D.

[0029] Figure 9 for Figure 7 The diagram shown is an enlarged view of the E-section structure.

[0030] Figure 10 This is a schematic diagram of the connection structure between the first bevel gear and the second lead screw of the present invention;

[0031] Figure 11 This is a schematic diagram of the connection structure between the guide wheel and the fixed shaft of the present invention;

[0032] Figure 12 This is a schematic diagram of the connection structure between the guide rod and the guide rail of the present invention;

[0033] Figure 13 for Figure 12 The diagram shows an enlarged view of the F-section structure.

[0034] Figure 14 for Figure 12 The diagram shows an enlarged view of the G section structure.

[0035] In the diagram: 1. Conveyor body; 2. Conveying structure; 201. Mounting shaft; 202. Sprocket; 203. Chain; 204. Scraper; 205. Guide rod; 206. Guide rail; 207. Fixed shaft; 208. Guide wheel; 209. First driving component; 3. Cleaning structure; 301. Adjusting block; 302. Connecting shaft; 303. Cleaning brush; 304. Gear; 305. Mounting base; 306. Second driving component; 307. Connecting box; 308. Guide plate; 309. Connecting pipe; 310. Nozzle; 4. Material guiding structure; 401. Discharge hopper; 402. Adjusting shaft 403. Connecting frame; 404. Guide plate; 405. Fixing seat; 406. First spring; 407. Slide plate; 408. Vibration motor; 5. Lifting structure; 501. Cam; 502. Drive shaft; 503. Guide shaft; 504. Second spring; 6. Limiting structure; 601. Limiting shaft; 602. Limiting block; 603. Limiting hole; 604. Slide rod; 605. Slider; 606. Third spring; 7. Mounting structure; 701. Mounting rod; 702. Roller; 703. Positioning sleeve; 704. Lead screw; 705. Connecting plate; 706. Marking block. Detailed Implementation

[0036] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0037] like Figure 1 , Figure 5 , Figure 6 , Figure 7 , Figure 9 , Figure 11 , Figure 12 , Figure 13 and Figure 14 As shown, the scraper chain structure for mining machinery of the present invention includes a conveyor body 1, a conveying structure 2 installed on the conveyor body 1, a cleaning structure 3 installed on the conveyor body 1, a guiding structure 4 installed on the conveyor body 1, and a lifting structure 5 installed between the cleaning structure 3 and the conveyor body 1. The conveying structure 2 includes two mounting shafts 201 rotatably connected to the conveyor body 1 and two sprockets 202 fixedly connected to the mounting shafts 201. A chain 203 is installed between every two sprockets 202. Multiple scrapers 204 are installed on the chain 203. Guide rods 205 are detachably connected to the scrapers 204. A guide rail 206 is fixedly connected to the conveyor body 1. The guide rods 205 are slidably connected to the guide rails 206. Two fixed shafts 207 are fixedly connected to the guide rods 205. Guide wheels 208 are rotatably connected to the fixed shafts 207. The guide wheels 208 are in rolling cooperation with the guide rails 206.

[0038] Specifically, such as Figure 1 , Figure 7 , Figure 9 , Figure 11 , Figure 12 , Figure 13 and Figure 14 As shown, a first drive component 209 is installed on the conveyor body 1. One of the mounting shafts 201 is driven by the first drive component 209. First, the first drive component 209 (preferably a motor) is started. The first drive component 209 drives one of the mounting shafts 201 to rotate the sprocket 202. The sprocket 202 cooperates with the chain 203, causing the two chains 203 to drive the scraper 204 on the chain 203 to move, thereby realizing material conveying. The guide rod 205 is installed on the scraper 204 through the mounting structure 7. The mounting structure 7 includes a slidably connected to the guide rod. The mounting rod 701 on the 205 is rotatably connected to the roller 702 on the mounting rod 701. Four positioning sleeves 703 are fixedly connected to the scraper 204. Each guide rod 205 is inserted into two positioning sleeves 703. The mounting rod 701 is engaged with the positioning sleeves 703. A lead screw 704 is threadedly connected to the guide rod 205. Four connecting discs 705 are fixedly connected to the lead screw 704. The connecting discs 705 are inclined. The roller 702 rolls with two of the connecting discs 705. A marking block 706 is provided on the lead screw 704.

[0039] Specifically, such as Figure 1 , Figure 2 , Figure 7 , Figure 8 and Figure 10As shown, the cleaning structure 3 includes two adjusting blocks 301 slidably connected to the conveyor body 1 and two connecting shafts 302 rotatably connected between the two adjusting blocks 301. A cleaning brush 303 is mounted on each connecting shaft 302, which cleans the material adhering to the scraper 204, preventing material adhesion from affecting the material conveying efficiency. A gear 304 is fixedly connected to each connecting shaft 302, and the two gears 304 mesh with each other. A connecting box 307 is fixedly connected to one of the adjusting blocks 301, and the connecting shaft 302 is rotatably connected to the connecting box 307. A mounting base 305 is fixedly connected to one of the adjusting blocks 301, and a second driving component 306 is mounted on the mounting base 305. One of the connecting shafts 302 is driven by the second driving component 306. A guide plate 308 is fixedly connected to each adjusting block 301, and the guide plate 308 is connected to the conveyor body 1. The conveyor body 1 is slidably connected, and a connecting pipe 309 is installed between the two guide plates 308. Multiple nozzles 310 are installed on the connecting pipe 309. The adjusting block 301 is lifted by a lifting structure 5. The lifting structure 5 includes a cam 501 fixedly connected to one of the connecting shafts 302 and a drive shaft 502 rotatably connected to the conveyor body 1. The drive shaft 502 and the cam 501 are in rolling cooperation. When the drive shaft 502 rotates, the cam 501 pushes the adjusting block 301 to rise along the guide shaft 503. The setting of the guide shaft 503 makes the movement of the adjusting block 301 more stable. The second spring 504 contracts, and at the same time, the adjusting block 301 adjusts the position of the cleaning brush 303 so as to clean different positions of the scraper 204 and improve the cleaning effect. The guide shaft 503 is fixedly connected to the conveyor body 1, and the second spring 504 is fixedly connected between the adjusting block 301 and the conveyor body 1.

[0040] Specifically, such as Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the material guiding structure 4 includes a hopper 401 fixedly connected to the conveyor body 1 and two adjusting shafts 402 rotatably connected to the hopper 401. A connecting frame 403 is fixedly connected to the adjusting shaft 402, and a guide plate 404 is slidably connected to the connecting frame 403. The two inclined guide plates 404 can slow down the material falling into the conveyor body 1, thereby avoiding impact on the scraper 204 due to excessive material falling speed and preventing damage to the scraper 204. A fixed seat 405 is fixedly connected to the guide plate 404, and the fixed seat 405 is slidably connected to the connecting frame 403. A vibration motor 408 is installed on the fixed seat 405. A sliding plate 407 is fixedly connected to the guide plate 404, and the sliding plate 407 is slidably connected to the connecting frame 403. A first spring 406 is fixedly connected between the guide plate 404 and the connecting frame 403. The adjusting shaft 402 is fixed by a limiting structure 6. Structure 6 includes two limiting shafts 601 fixedly connected to the hopper 401 and limiting blocks 602 engaged with the limiting shafts 601. Each limiting block 602 has multiple limiting holes 603 arranged in a circular array about the center of the adjusting shaft 402. The limiting shaft 601 engages with two of the limiting holes 603. After adjustment, the limiting block 602 is released, allowing it to engage with two of the limiting holes 603 under the action of a third spring 606. The limiting hole 603 engages with the limiting shaft 601 and the limiting block 602, which facilitates the fixing of the rotating adjusting shaft 402 and improves stability. A slide rod 604 is fixedly connected to the limiting block 602, and the slide rod 604 is slidably connected to the adjusting shaft 402. A slider 605 is fixedly connected to the slide rod 604, and the slider 605 is slidably connected to the adjusting shaft 402. A third spring 606 is fixedly connected between the slider 605 and the adjusting shaft 402.

[0041] In use, when material enters the conveyor body 1, it first passes through the hopper 401 and then falls onto the guide plates 404. The two inclined guide plates 404 slow down the material's falling speed into the conveyor body 1, thus preventing the scraper 204 from being damaged due to excessive material falling speed. The operator can adjust the angle of the adjusting shaft 402 according to actual needs. During adjustment, pulling the limiting block 602 will cause the sliding rod 604 to slide. When the sliding rod 604 slides, it will cause the slider 605 to slide. The slider 605 will cause the third spring 606 to retract. At the same time, the limiting block 602 will no longer be engaged with the limiting shaft 601. At this time, the material can be moved through the limiting block 602 and the sliding rod 604. The adjusting shaft 402 rotates, changing the angle of the connecting frame 403 and the guide plate 404 to adapt to different material conveying requirements. After adjustment, the limiting block 602 is released, so that the limiting block 602 engages with two of the limiting holes 603 under the action of the third spring 606. The limiting shaft 601 engages with the limiting block 602, which facilitates the fixing of the rotating adjusting shaft 402 and improves stability. At the same time, the vibration motor 408 is started, and the guide plate 404 vibrates under the action of the vibration motor 408, promoting the flow of materials and preventing materials from accumulating on the guide plate 404. The sliding connection between the sliding plate 407 and the connecting frame 403 ensures the smoothness of the vibration of the guide plate 404. Meanwhile, the first spring 406 continuously deforms.

[0042] When conveying materials entering the conveyor body 1, the first drive unit 209 (preferably a motor) is activated. The first drive unit 209 drives one of the mounting shafts 201 to rotate the sprocket 202. The sprocket 202 cooperates with the chain 203, causing the two chains 203 to drive the scraper 204 on the chain 203 to move, thereby realizing material conveying. When the scraper 204 moves to a certain position, the guide rod 205 enters the guide rail 206 and slides within the guide rail 206. This setting can prevent the scraper 204 from increasing the friction between the scraper 204 and the conveyor body 1 when the scraper 204 is subjected to force on one side, thereby improving the service life of the scraper 204 and ensuring the stability of the conveying. At the same time, the guide wheel 208 rolls within the guide rail 206, reducing friction and making the movement smoother. When the guide wheel 208 needs to be replaced, insert the hexagonal sleeve into the hexagonal block at the end of the lead screw 704, rotate the lead screw 704 180 degrees, and the lead screw 704 will drive the inclined connecting plate 705 to rotate. The inclined connecting plate 705 will push the roller 702 to drive the mounting rod 701 to move, so that the mounting rod 701 is no longer engaged with the positioning sleeve 703. By engaging the mounting rod 701 with the positioning sleeve 703, it is easy to install the guide rod 205 on the scraper 204, which improves stability. At this time, the guide rod 205 can be pulled out from the positioning sleeve 703 to complete the disassembly. The marking block 706 is used to indicate the rotation position of the lead screw 704 to ensure that the installation is in place. When replacing, simply insert the guide rod 205 into the positioning sleeve 703, and then engage the mounting rod 701 with the positioning sleeve 703 to complete the installation.

[0043] When cleaning of the scraper 204 is required, the second drive unit 306 (preferably a motor) is activated. The second drive unit 306 drives the connecting shaft 302 to rotate the cleaning brush 303. The two cleaning brushes 303 rotate in opposite directions through gear 304 meshing. At the same time, the connecting pipe 309 is connected to an external water source, and the chain 203 is rinsed through the nozzle 310 to improve cleanliness. The cleaning brushes 303 clean the material adhering to the scraper 204, preventing the material from adhering to the scraper 204 and affecting the material conveying efficiency. In addition, when the drive shaft 50... 2. When rotating, the cam 501 pushes the adjusting block 301 to rise along the guide shaft 503. The setting of the guide shaft 503 makes the movement of the adjusting block 301 more stable. The second spring 504 contracts, and at the same time, the adjusting block 301 adjusts the position of the cleaning brush 303 so as to clean different positions of the scraper 204, improve the cleaning effect, and when conveying materials, the cleaning brush 303 can move to the highest position to avoid affecting the movement of the scraper 204. When the adjusting block 301 moves, it slides more smoothly through the guide plate 308.

[0044] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0045] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A scraper chain structure for mining machinery, characterized in that, It includes a conveyor body (1), a conveying structure (2) installed on the conveyor body (1), a cleaning structure (3) installed on the conveyor body (1), a material guiding structure (4) installed on the conveyor body (1), and a lifting structure (5) installed between the cleaning structure (3) and the conveyor body (1). The conveying structure (2) includes two mounting shafts (201) rotatably connected to the conveyor body (1) and two sprockets (202) fixedly connected to the mounting shafts (201). A chain (203) is installed between each pair of sprockets (202). Multiple scrapers (204) are installed on the chain (203). A guide rod (205) is detachably connected to the scraper (204). A guide rail (206) is fixedly connected to the conveyor body (1). The guide rod (205) is slidably connected to the guide rail (206). Two fixed shafts (207) are fixedly connected to the guide rod (205). A guide wheel (208) is rotatably connected to the fixed shaft (207). The guide wheel (208) is in rolling cooperation with the guide rail (206). The cleaning structure (3) includes two adjusting blocks (301) slidably connected to the conveyor body (1) and two connecting shafts (302) rotatably connected between the two adjusting blocks (301). A cleaning brush (303) is installed on the connecting shaft (302), and a gear (304) is fixedly connected to the connecting shaft (302). The two gears (304) mesh with each other. The material guiding structure (4) includes a hopper (401) fixedly connected to the conveyor body (1) and two adjusting shafts (402) rotatably connected to the hopper (401). A connecting frame (403) is fixedly connected to the adjusting shaft (402). A guide plate (404) is slidably connected to the connecting frame (403). A fixed seat (405) is fixedly connected to the guide plate (404). The fixed seat (405) is slidably connected to the connecting frame (403). A vibration motor (408) is installed on the fixed seat (405). A sliding plate (407) is fixedly connected to the guide plate (404). The sliding plate (407) is slidably connected to the connecting frame (403). A first spring (406) is fixedly connected between the guide plate (404) and the connecting frame (403).

2. The scraper chain structure for mining machinery according to claim 1, characterized in that: A first drive unit (209) is installed on the conveyor body (1), and one of the mounting shafts (201) is driven by the first drive unit (209).

3. The scraper chain structure for mining machinery according to claim 2, characterized in that: The guide rod (205) is mounted on the scraper (204) via the mounting structure (7). The mounting structure (7) includes a mounting rod (701) slidably connected to the guide rod (205) and a roller (702) rotatably connected to the mounting rod (701). Four positioning sleeves (703) are fixedly connected to the scraper (204). Each guide rod (205) is inserted into two positioning sleeves (703), and the mounting rod (701) engages with the positioning sleeves (703).

4. The scraper chain structure for mining machinery according to claim 3, characterized in that: The guide rod (205) is threaded with a lead screw (704), and four connecting discs (705) are fixedly connected to the lead screw (704). The connecting discs (705) are inclined. The roller (702) rolls with two of the connecting discs (705). The lead screw (704) is provided with an identification block (706).

5. The scraper chain structure for mining machinery according to claim 1, characterized in that: A connecting box (307) is fixedly connected to one of the adjusting blocks (301), and the connecting shaft (302) is rotatably connected to the connecting box (307). A mounting base (305) is fixedly connected to one of the adjusting blocks (301), and a second driving component (306) is installed on the mounting base (305). One of the connecting shafts (302) is driven by the second driving component (306). A guide plate (308) is fixedly connected to the adjusting block (301), and the guide plate (308) is slidably connected to the conveyor body (1). A connecting pipe (309) is installed between the two guide plates (308), and multiple nozzles (310) are installed on the connecting pipe (309).

6. The scraper chain structure for mining machinery according to claim 5, characterized in that: The adjusting block (301) is lifted by the lifting structure (5), which includes a cam (501) fixedly connected to one of the connecting shafts (302) and a drive shaft (502) rotatably connected to the conveyor body (1). The drive shaft (502) and the cam (501) are in rolling engagement.

7. The scraper chain structure for mining machinery according to claim 6, characterized in that: A guide shaft (503) is fixedly connected to the conveyor body (1), and a second spring (504) is fixedly connected between the adjusting block (301) and the conveyor body (1).

8. The scraper chain structure for mining machinery according to claim 1, characterized in that: The adjusting shaft (402) is fixed by a limiting structure (6). The limiting structure (6) includes two limiting shafts (601) fixedly connected to the hopper (401) and a limiting block (602) engaged with the limiting shafts (601). The limiting block (602) is provided with multiple limiting holes (603). The multiple limiting holes (603) are arranged in a circular array about the center of the adjusting shaft (402). The limiting shaft (601) is engaged with two of the limiting holes (603). A sliding rod (604) is fixedly connected to the limiting block (602). The sliding rod (604) is slidably connected to the adjusting shaft (402). A slider (605) is fixedly connected to the sliding rod (604). The slider (605) is slidably connected to the adjusting shaft (402). A third spring (606) is fixedly connected between the slider (605) and the adjusting shaft (402).

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