Scraper conveyer for thin coal seam comprehensive mining

Abstract

According to the scraper conveyor for the thin coal seam comprehensive mining, a plurality of scraper mechanisms are evenly fixed to a chain, each scraper mechanism comprises a base fixed to the chain, a rotating head is rotationally installed on each base, a scraper and a groove block are fixed to each rotating head, and the scrapers move along with the chain and are used for taking away coal in a machine body; the two opposite scrapers on the two chains are located at the same position; when the scraper mechanism operates along with the chain, coal is added into the machine body from the feeding port and conveyed through the scraper mechanism, when the detector detects the coal, it is indicated that the coal overflows out of the scraper, at the moment, the control terminal controls the rack to stretch out to the gear position away from the scraper, and the scraper rotates along with operation of the main motor. The gears in half of the scraper mechanisms are meshed with the racks, so that the scrapers are in an inclined state, the half of the scraper mechanisms do not play a role in conveying coal at the moment, the volume of a trough formed between the scraper mechanisms is doubled at the moment, the situation of coal accumulation is avoided, and the overall safety performance is greatly enhanced.

Description

Technical Field

[0001] The present invention relates to the field of coal mine equipment, and specifically to a scraper conveyor for fully-mechanized mining in thin coal seams. Background Art

[0002] A thin coal seam refers to a coal mining face with a coal seam thickness of less than 1.3 meters, which has the problem of a narrow mining space. Compared with thick coal seams and medium coal seams, it is more difficult to mine thin coal seams, and more equipment is required during mining.

[0003] Among them, the scraper conveyor is a relatively important one. Because the internal space of the thin coal seam is narrow, the scraper conveyor is often used frequently to transport the coal material out in time. The trough formed by the scrapers of the existing scraper conveyor often has a fixed trough pitch. In the case of a large coal material flow, it is easy to cause the accumulation of coal material, resulting in jamming, coal material overflow and other situations.

[0004] After retrieval, it is found that a mining assembled scraper conveyor with the publication number of CN18495042B. Its measure to address the above problems is to make the scraper at one place into two hinged plates in a hinged shape, and adjust the distance between them by adjusting the angle between the hinged plates. However, after the applicant's evaluation, it is found that this adjustment method has an insignificant effect, the trough pitch basically remains unchanged, and it will make the scraper structure too complex and the subsequent maintenance very troublesome. Summary of the Invention

[0005] The purpose of the present invention is to provide a scraper conveyor for fully-mechanized mining in thin coal seams to solve the above problems.

[0006] The above technical purpose of the present invention is achieved through the following technical solutions: A scraper conveyor for fully-mechanized mining in thin coal seams includes a machine body. A feed inlet is provided at the top of the machine body, and a discharge port is opened at the bottom of the machine body. Two chains driven by a sprocket assembly are installed in the machine body.

[0007] A number of scraper mechanisms are evenly fixed on the chain. A material trough is formed between the scraper mechanisms. The scraper mechanism includes a base fixed to the chain. A rotating head is rotatably installed on the base. A scraper and a groove block are fixed on the rotating head. Two opposite scrapers on the two chains are in the same position, and the two form an entire scraper. An activity groove is opened in the groove block. A pin is passed through the activity groove. The pin is fixedly arranged on a slide bar. The slide bar is slidably sleeved in a slide rail. The slide rail is fixed to the base through a fixing bar. A first stop piece and a second stop piece are fixed on the slide bar. The second stop piece abuts against the slide rail. A thread is opened in the slide bar and is threadedly connected with a threaded shaft. A ring groove is opened on the threaded shaft. A gear is rotatably installed on the ring groove. An iron ring is fixed inside the gear. A magnetic ring is fixed in the ring groove. The magnetic ring and the iron ring adsorb each other. The threaded shaft is rotatably installed on a fixing plate. The fixing plate is fixed to the base;

[0008] A detector is fixed inside the machine body;

[0009] Racks are symmetrically arranged inside the machine body. The racks are fixed to telescopic rods. The telescopic rods are controlled to expand and contract by a telescopic controller fixed on the machine body. After the racks extend out with the telescopic rods, they can be engaged with the gears;

[0010] The gears in two adjacent scraper mechanisms on the chain are different. One of the gears is closer to the scraper position. The spaced scraper mechanisms are exactly the same. A control terminal is integrated inside the machine body.

[0011] Preferably, a cleaning component is installed on the top of the machine body. The cleaning component includes a cover plate and a bottom plate. The bottom plate is located in a through groove opened on the top of the machine body. Two connecting plates are fixed between the cover plate and the bottom plate. Two cleaning shafts are rotatably installed between the cover plate and the bottom plate. Brush barrels and belt pulleys are fixed on the cleaning shafts. A belt is installed between the two belt pulleys for transmission. One of the cleaning shafts is fixed to the motor shaft of a cleaning motor. A locking component is installed on the bottom plate and the machine body to achieve fixation.

[0012] Preferably, the locking component includes a pair of first lock heads fixed on the bottom plate. A pair of second lock heads and a pair of third lock heads are symmetrically and fixedly arranged on the machine body. A lock pin commonly passes through the third lock head, the second lock head, and the first lock head on one side. A connecting head is fixed at one end of the lock pin. A retaining ring is fixed on the lock pin between the third lock head and the second lock head.

[0013] Preferably, the two locking components are arranged in a staggered manner.

[0014] Preferably, two No. 4 lock heads are fixed on the cover plate. A positioning plate is fixed on one side of the cover plate, and a handle is fixed on the top of the cover plate. A positioning groove with the same shape as the positioning plate is formed on the top of the machine body, and the positioning groove and the positioning plate are used for matching and positioning.

[0015] Preferably, the position of the cleaning assembly is aligned with the discharge port.

[0016] Preferably, the detector adopts a vision sensor or an infrared reflection sensor.

[0017] In summary, the present invention has the following beneficial effects:

[0018] 1. A number of scraper mechanisms are evenly fixed on the chain of the present application. The scraper mechanism includes a base fixed to the chain. A rotating head is rotatably installed on the base, and a scraper and a groove block are fixed on the rotating head. The scraper is used to carry away the coal in the machine body as the chain moves. Two opposite scrapers on the two chains are at the same position, and the two form an entire scraper to avoid residue during coal conveying. An activity groove is formed in the groove block, and a pin is arranged through the activity groove. The pin is fixedly arranged on a slide bar, and the slide bar is slidably sleeved in a slide rail. The slide rail is fixed to the base through a fixing bar. A first stop piece and a second stop piece are fixed on the slide bar, and the second stop piece abuts against the slide rail. A thread is formed in the slide bar and is threadedly connected with a threaded shaft. An annular groove is formed on the threaded shaft, and a gear is rotatably installed on the annular groove. An iron ring is fixed inside the gear, and a magnetic ring is fixed in the annular groove. The magnetic ring and the iron ring adsorb each other to realize the relative fixation of the gear and the threaded shaft. The threaded shaft is rotatably installed on a fixing plate, and the fixing plate is fixed to the base;

[0019] A detector is fixed in the machine body, and racks are symmetrically arranged in the machine body. The racks are fixed to telescopic rods, and the telescopic rods are controlled to extend and retract by a telescopic controller fixed to the machine body. The racks can be engaged with the gears after extending with the telescopic rods; there are differences between the gears in two adjacent scraper mechanisms on the chain. One of the gears is closer to the scraper position, and the spaced scraper mechanisms are exactly the same; a control terminal is integrated in the machine body;

[0020] When the scraper mechanism operates with the chain, coal is added into the machine body from the feed inlet, and the coal is transported through the movement of the scraper mechanism. When the detector detects the coal, it means that the coal has overflowed the scraper. At this time, the control terminal controls two telescopic controllers to start. The telescopic controllers drive the racks to extend to the gear positions away from the scrapers. As the main motor operates, the gears in half of the scraper mechanism will engage with the racks. When the gears move to the rack positions, they will rotate, driving the threaded shafts to rotate. The threaded shafts drive the sliders to move through the threaded connection with the sliders. The pins move with the sliders to pull the groove blocks, and the rotating heads drive the rotating heads and the scrapers on the rotating heads to rotate. The scrapers are in an inclined state. The first baffle moves with the slider until it is blocked by the slide rail. The gears in the other half of the scraper mechanism do not contact the racks. In this way, half of the scraper mechanism does not play the role of transporting coal at this time, and the volume of the trough formed between the scraper mechanisms doubles, and there will no longer be a situation of coal accumulation, greatly enhancing the overall safety performance.

[0021] 2. A cleaning component is installed on the top of the machine body. The cleaning component includes two rotatable brush barrels; the brush barrels are inserted into the machine body, and the inclined scrapers are cleaned by the rotation of the brush barrels. The cleaning is very convenient, and only the self-operation is required to complete the cleaning, with high efficiency.

[0022] 3. Usually, the cleaning component is outside the machine body, which is convenient for cleaning the brush barrels.

[0023] 4. The position of the cleaning component is aligned with the discharge port, so that the coal ash cleaned from the scrapers can directly fall from the discharge port, which is convenient for subsequent treatment. Brief Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 is the first external view schematic diagram of the embodiment of the present invention;

[0026] Figure 2 is Figure 1 the enlarged schematic diagram at A in

[0027] Figure 3 is the second external view schematic diagram of the embodiment of the present invention;

[0028] Figure 4 is the first internal structure display diagram of the embodiment of the present invention;

[0029] Figure 5 isFigure 4 Enlarged schematic view at position B in

[0030] Figure 6 It is a sectional view of the connection position between the gear 52 and the threaded shaft 49;

[0031] Figure 7 It is the second internal structure display diagram of the embodiment of the present invention;

[0032] Figure 8 It is Figure 7 Enlarged schematic view at position C in

[0033] In the figure: 11, body; 13, feed inlet; 14, positioning groove; 15, connecting plate; 16, positioning plate; 17, brush barrel; 18, through groove; 19, bottom plate; 20, cleaning shaft; 21, belt pulley; 22, belt; 23, cover plate; 24, handle; 25, cleaning motor; 26, lock head No. 4; 27, lock head No. 3; 28, lock head No. 2; 29, connecting head; 30, lock pin; 31, retaining ring; 32, lock head No. 1; 33, detector; 34, scraper; 35, discharge port; 36, main motor; 37, telescopic controller; 38, telescopic rod; 39, rack; 40, base; 41, rotating head; 42, groove block; 43, pin; 44, movable groove; 45, slide bar; 46, first retaining piece; 47, slide rail; 48, second retaining piece; 49, threaded shaft; 50, fixing plate; 51, fixing strip; 52, gear; 53, iron ring; 54, magnetic ring; 55, ring groove; 56, chain; 57, rotating shaft; 58, sprocket; 60, cleaning assembly; 70, scraper mechanism. Detailed implementation manners

[0034] Combined with the attached Figures 1-8 A scraper conveyor for thin coal seams described above includes a body 11. A feed inlet 13 is provided at the top of the body 11 for feeding, and a discharge port 35 is opened at the bottom of the body 11 for discharging. Two chains 56 are installed in the body 11, and the chains 56 are driven by a sprocket assembly. The sprocket assembly includes a pair of rotating shafts 57 rotatably installed in the body 11. The rotating shafts 57 are both fixed with sprockets 58 for meshing with the chains 56. One of the rotating shafts 57 passes through the body 11 and is fixed to the motor shaft of the main motor 36, and the main motor 36 is fixed on the body 11;

[0035] A scraper assembly is arranged between the two chains 56, and a material trough is formed between the scraper assemblies. Normally, when the coal material flow at the feed inlet 13 is large, the coal material in the material trough will accumulate too much, resulting in situations such as jamming and coal material overflow;

[0036] In response to this, the applicant optimized the scraper assembly. A number of scraper mechanisms 70 are evenly fixed on the chain 56. The scraper mechanism 70 includes a base 40 fixed to the chain 56. A rotating head 41 is rotatably installed on the base 40. A scraper 34 and a groove block 42 are fixed on the rotating head 41. The scraper 34 is used to carry away the coal material in the body 11 as the chain 56 moves. Two opposite scrapers 34 on the two chains 56 are in the same position, and the two form an entire scraper to avoid residue during coal material transportation. An activity groove 44 is opened in the groove block 42. A pin 43 is provided through the activity groove 44. The pin 43 is fixedly arranged on a slide bar 45. The slide bar 45 is slidably sleeved in a slide rail 47. The slide rail 47 is fixed to the base 40 through a fixing bar 51. A first stop piece 46 and a second stop piece 48 are fixed on the slide bar 45. The second stop piece 48 abuts against the slide rail 47. A thread is opened in the slide bar 45 and is threadedly connected with a threaded shaft 49. A ring groove 55 is opened on the threaded shaft 49. A gear 52 is rotatably installed on the ring groove 55. An iron ring 53 is fixed inside the gear 52. A magnetic ring 54 is fixed in the ring groove 55. The magnetic ring 54 and the iron ring 53 adsorb each other to realize the relative fixation of the gear 52 and the threaded shaft 49. The threaded shaft 49 is rotatably installed on a fixing plate 50. The fixing plate 50 is fixed to the base 40;

[0037] A detector 33 is fixed in the body 11. The detector 33 is located at the top position of the scraper 34. The detector 33 is used to detect whether the coal material accumulates;

[0038] Rack bars 39 are symmetrically arranged in the body 11. The rack bars 39 are fixed to telescopic rods 38. The telescopic rods 38 are controlled to expand and contract by a telescopic controller 37 fixed on the body 11. After the rack bars 39 extend out with the telescopic rods 38, they can mesh with the gear 52;

[0039] It should be particularly noted that there are differences between the gears 52 in two adjacent scraper mechanisms 70 on the chain 56. One of the gears 52 is closer to the scraper 34, and the spaced scraper mechanisms 70 are exactly the same;

[0040] A control terminal is integrated in the body 11 to receive the detection result of the detector 33;

[0041] The main motor 36 starts, driving the sprocket assembly to work, and driving the two chains 56 to operate through the sprocket assembly. The scraper mechanism 70 operates along with the chain 56, adding coal material into the machine body 11 from the feed port 13, and transporting the coal material through the movement of the scraper mechanism 70. When the detector 33 detects the coal material, it means that the coal material has overflowed the scraper 34. At this time, the control terminal controls the two telescopic controllers 37 to start. The telescopic controller 37 drives the rack 39 to extend to the position of the gear 52 away from the scraper 34. With the operation of the main motor 36, the gear 52 in half of the scraper mechanisms 70 will engage with the rack 39. When the gear 52 moves to the position of the rack 39, it will rotate, driving the threaded shaft 49 to rotate. By the threaded connection between the threaded shaft 49 and the slide bar 45, the slide bar 45 is driven to move. The latch 43 moves along with the slide bar 45 to pull the slot block 42, and the rotating head 41 drives the rotating head 41 and the scraper 34 on the rotating head 41 to rotate. The scraper 34 is in an inclined state. The first baffle 46 moves along with the slide bar 45 until it is blocked by the slide rail 47. The gear 52 in the other half of the scraper mechanisms 70 does not contact the rack 39. In this way, the other half of the scraper mechanisms 70 do not play the role of transporting coal material at this time, and the volume of the trough formed between the scraper mechanisms 70 doubles at this time, and there will no longer be a situation of coal material accumulation. After the gear 52 on the inclined scraper 34 engages with the rack 39 again, only the gear 52 itself will rotate, and the threaded shaft 49 will not rotate (because the first baffle 46 is blocked by the slide rail 47).

[0042] For the convenience of overall cleaning, a cleaning component 60 is installed on the top of the machine body 11. The cleaning component 60 includes a cover plate 23 and a bottom plate 19. The bottom plate 19 is located in the through groove 18 opened on the top of the machine body 11. Two connecting plates 15 are fixed between the cover plate 23 and the bottom plate 19. Two cleaning shafts 20 are rotatably installed between the cover plate 23 and the bottom plate 19. Brush cylinders 17 and pulleys 21 are fixed on the cleaning shafts 20. A belt 22 is installed between the two pulleys 21 for transmission. One of the cleaning shafts 20 is fixed to the motor shaft of the cleaning motor 25. After the cleaning motor 25 starts, it drives one of the cleaning shafts 20 to rotate, driving the pulley 21 and the brush cylinder 17 on this cleaning shaft 20 to rotate. Through the transmission of the belt 22, the other pulley 21 is driven to rotate, and the other brush cylinder 17 rotates along with the pulley 21. A locking component is installed on the bottom plate 19 and the machine body 11 to achieve fixation.

[0043] The locking assembly includes a pair of first lock heads 32 fixed on the base plate 19. On the body 11, a pair of second lock heads 28 and a pair of third lock heads 27 are symmetrically and fixedly arranged. A lock pin 30 penetrates through the third lock head 27, the second lock head 28, and the first lock head 32 on one side. A connection head 29 is fixed at one end of the lock pin 30. A retaining ring 31 is fixed on the lock pin 30 between the third lock head 27 and the second lock head 28. By manually pulling out the connection heads 29 on both sides to make the lock pin 30 disengage from the first lock head 32, the unlocking between the base plate 19 and the body 11 can be achieved.

[0044] It should be noted that the locking assemblies on both sides need to be arranged staggeredly to prevent the base plate 19 from rotating.

[0045] Two fourth lock heads 26 are fixed on the cover plate 23. A positioning plate 16 is fixed on one side of the cover plate 23. A handle 24 is fixed on the top of the cover plate 23. A positioning groove 14 with the same shape as the positioning plate 16 is formed on the top of the body 11. The positioning groove 14 and the positioning plate 16 are used for matching and positioning. After the base plate 19 and the body 11 are unlocked, hold the cover plate 23 and lower the cleaning assembly 60 into the body 11. At this time, the positioning plate 16 is inserted into the positioning groove 14 for positioning, and the fourth lock head 26 just moves to the original position of the first lock head 32. At this time, the two lock pins 30 can be operated to insert into the corresponding fourth lock heads 26 to fix the body 11 and the cover plate 23.

[0046] The brush cylinder 17 is inserted into the body 11, and the scraper 34 is cleaned by the rotation of the brush cylinder 17. It should be particularly noted that before cleaning, all the scrapers 34 need to be in an inclined state to facilitate each scraping mechanism 70 to pass through the cleaning assembly 60 without interference. Specifically, before the user lowers the cleaning assembly 60, the telescopic controller 37 is controlled through the control terminal to control the rack 39 to first move to a position away from the gear 52 of the scraper 34. At this time, the operation of the chain 56 will drive each gear 52 close to the scraper 34 to mesh with the rack 39, so that half of the scrapers 34 can be in an inclined state. After completion, the rack 39 is controlled to move to a position away from the gear 52 of the scraper 34 again. At this time, the operation of the chain 56 will drive each gear 52 away from the scraper 34 to mesh with the rack 39, so that the other half of the scrapers 34 can also be in an inclined state. Then the cleaning assembly 60 is lowered, and the two rotating brush cylinders 17 on the cleaning assembly 60 can clean all the inclined scrapers 34.

[0047] The position of the cleaning component 60 is aligned with the discharge port 35, so that the coal ash cleaned from the scraper 34 can directly fall from the discharge port 35.

[0048] The commonly used detector 33 adopts a vision sensor, an infrared reflection sensor. The application and setting of relevant sensors are already very conventional technologies in industrial production and are also directly purchased, so they will not be elaborated too much in this application.

[0049] Usage method:

[0050] When coal needs to be transported, the user controls the main motor 36 to start through the control terminal, drives the sprocket assembly to work, drives the two chains 56 to run through the sprocket assembly, and the scraper mechanism 70 runs with the chain 56 to add coal into the machine body 11 from the feed port 13. The coal is transported through the movement of the scraper mechanism 70. When the detector 33 detects the coal, it means that the coal has overflowed the scraper 34. At this time, the control terminal controls the two telescopic controllers 37 to start. The telescopic controller 37 drives the rack 39 to extend to the position of the gear 52 away from the scraper 34. With the operation of the main motor 36, the gear 52 in half of the scraper mechanism 70 will engage with the rack 39. When the gear 52 moves to the position of the rack 39, it will rotate, drive the threaded shaft 49 to rotate, drive the slide bar 45 to move through the threaded connection between the threaded shaft 49 and the slide bar 45. The latch 43 moves with the slide bar 45 to pull the groove block 42, and the rotating head 41 drives the rotating head 41 and the scraper 34 on the rotating head 41 to rotate. The scraper 34 is in an inclined state. The first baffle 46 moves with the slide bar 45 until it is blocked by the slide rail 47. The gear 52 in the other half of the scraper mechanism 70 does not contact the rack 39. In this way, half of the scraper mechanism 70 does not play the role of transporting coal at this time, and the volume of the material trough formed between the scraper mechanisms 70 doubles at this time;

[0051] After the coal transportation is completed this time, the user controls the main motor 36 to start in reverse through the control terminal to drive each scraper 34 to reset. At this time, the volume of the material trough also resets, and each scraper mechanism 70 can transport the subsequent coal again;

[0052] When cleaning is to be carried out, the user controls the telescopic controller 37 through the control terminal to control the rack 39 to first move to the position of the gear 52 away from the scraper 34. At this time, the operation of the chain 56 will drive each gear 52 close to the scraper 34 to mesh with the rack 39, so that half of the scrapers 34 can be in an inclined state. After completion, the rack 39 is controlled to move to the position of the gear 52 away from the scraper 34 again. At this time, the operation of the chain 56 will drive each gear 52 away from the scraper 34 to mesh with the rack 39, so that the other half of the scrapers 34 can also be in an inclined state. The locking between the bottom plate 19 and the machine body 11 is released, the cleaning assembly 60 is lowered and the cover plate 23 and the machine body 11 are locked. The cleaning motor 25 is controlled to start, driving one of the cleaning shafts 20 to rotate, driving the pulley 21 on the cleaning shaft 20 and the brush cylinder 17 to rotate. Through the transmission of the belt 22, the other pulley 21 is driven to rotate, and the other brush cylinder 17 rotates with the pulley 21. The two pulleys 21 clean each scraper 34, and the coal ash cleaned out is discharged from the discharge port 35 position.

[0053] The above embodiments are only for explaining the technical concept and features of the present invention, and their purpose is to enable those skilled in the art to understand the content of the present invention and implement it, and cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. A thin coal seam fully-mechanized scraper conveyor, comprising a machine body (11), wherein a feed inlet (13) is arranged at the top of the machine body (11), a discharge outlet (35) is arranged at the bottom, and two chains (56) driven by a sprocket assembly are installed in the machine body (11), characterized in that: A plurality of scraper mechanisms (70) are evenly fixed on the chain (56), and a material trough is formed between the scraper mechanisms (70). The scraper mechanisms (70) include a base (40) fixed to the chain (56), a rotating head (41) is rotatably mounted on the base (40), a scraper (34) and a trough block (42) are fixed on the rotating head (41), two scrapers (34) opposite to each other on the two chains (56) are at the same position, a movable groove (44) is provided in the trough block (42), a latch (43) is provided through the movable groove (44), the latch (43) is fixedly arranged on a slide bar (45), the slide bar (45) is slidably sleeved in a slide rail (47), and the slide rail (47) is provided with a plurality of scraper mechanisms (70) fixed on the chain (56). 7) fixed to the base (40) through a fixing strip (51), a first baffle (46) and a second baffle (48) are fixed on the slide bar (45), the second baffle (48) abuts against the slide rail (47), the slide bar (45) is threadedly connected to the threaded shaft (49), a ring groove (55) is provided on the threaded shaft (49), a gear (52) is rotatably mounted on the ring groove (55), an iron ring (53) is fixed inside the gear (52), a magnetic ring (54) is fixed inside the ring groove (55), the magnetic ring (54) and the iron ring (53) are attracted to each other, the threaded shaft (49) is rotatably mounted on a fixing plate (50), and the fixing plate (50) is fixed to the base (40); A detector (33) is fixed inside the machine body (11); A rack (39) is symmetrically arranged in the body (11), the rack (39) is fixed to the telescopic rod (38), the telescopic rod (38) is controlled to be telescopic by a telescopic controller (37) fixed to the body (11), and the rack (39) can mesh with the gear (52) after the telescopic rod (38) is extended. One of the gears (52) in two adjacent scraper mechanisms (70) is closer to the scraper (34); The spaced scraper mechanisms (70) are completely identical; A control terminal is integrated in the machine body (11).

2. The thin coal seam fully-mechanized scraper conveyor according to claim 1, characterized in that: A cleaning assembly (60) is installed on the top of the machine body (11), and the cleaning assembly (60) comprises a cover plate (23) and a bottom plate (19). The bottom plate (19) is located in a through groove (18) opened on the top of the machine body (11). Two connecting plates (15) are fixed between the cover plate (23) and the bottom plate (19). Two cleaning shafts (20) are rotatably installed between the cover plate (23) and the bottom plate (19). A brush cylinder (17) and a pulley (21) are fixed on the cleaning shaft (20). A belt (22) is installed between the two pulleys (21) for transmission. One of the cleaning shafts (20) is fixed to the motor shaft of a cleaning motor (25). A locking assembly is installed on the bottom plate (19) and the machine body (11) to achieve fixation.

3. The thin coal seam fully-mechanized scraper conveyor according to claim 2, characterized in that: The locking assembly comprises a pair of No. 1 lock heads (32) fixed on the base plate (19), a pair of No. 2 lock heads (28) and a pair of No. 3 lock heads (27) symmetrically fixed on the body (11), a locking pin (30) penetrating through the No. 3 lock head (27), the No. 2 lock head (28) and the No. 1 lock head (32) on one side, a connecting head (29) fixed at one end of the locking pin (30), and a retaining ring (31) fixed on the locking pin (30) between the No. 3 lock head (27) and the No. 2 lock head (28).

4. The thin coal seam fully-mechanized scraper conveyor according to claim 2, characterized in that: The locking components on both sides are staggered.

5. The thin coal seam fully-mechanized scraper conveyor according to claim 1, characterized in that: Two number four locks (26) are fixed on the cover plate (23), a positioning plate (16) is fixed on one side of the cover plate (23), a handle (24) is fixed on the top of the cover plate (23), and a positioning groove (14) having the same shape as the positioning plate (16) is opened on the top of the body (11), and the positioning groove (14) and the positioning plate (16) are used for matching and positioning.

6. The thin coal seam fully-mechanized scraper conveyor according to claim 1, characterized in that: The cleaning assembly (60) is positioned in alignment with the discharge opening (35).

7. The thin coal seam fully-mechanized scraper conveyor according to claim 1, characterized in that: The detector (33) is a visual sensor or an infrared reflection sensor.

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