An adjustable flight structure for a belt conveyor

Abstract

The present application relates to a kind of adjustable scraper structure of belt conveyor, relate to coal mine equipment technical field, including the mounting frame of installation in the head end of belt conveyor, rotation is arranged on mounting frame and located in the lower side of the head of belt conveyor Rotary frame, the scraper body of being evenly spaced in circumferential direction is arranged on rotary frame, and coal residue cleaning component is arranged on mounting frame and located in the lower side of rotary frame;Rotary frame's pivot is horizontal, and multiple scraper bodies are eccentrically inclined and arranged on rotary frame, and multiple scraper bodies are sequentially moved to the surface of the belt of upper side belt conveyor and are inclined to the belt with rotary frame rotation to scrape the coal residue on the surface of the belt;Coal residue cleaning component sequentially cleans the coal residue remaining on scraper body with the rotation of rotary frame.The beneficial effect is that the service life of scraper body can be effectively improved, so that the scraping effect of lower side scraper body on coal residue is maintained while the friction between the belt is not increased, thereby prolonging the service life of the belt.

Description

Technical Field

[0001] This invention relates to the field of coal mining equipment technology, and in particular to an adjustable scraper structure for a belt conveyor. Background Technology

[0002] Belt conveyors, also known as rubber belt conveyors or belt conveyors, are machines that rely on friction to continuously transport materials. They mainly consist of a frame, conveyor belt, idlers, drums, tensioning devices, and transmission devices. They are suitable for conveying powdery, granular, and small lump materials, as well as bagged materials, weighing up to 100 kg. The temperature of the conveyed material is below 60℃, and the operating ambient temperature is -20℃ to +40℃. They are widely used in mining, power plants, ports, electronics, food, chemical, and light industries. This equipment is divided into heavy-duty belt conveyors (such as mining conveyors) and light-duty belt conveyors, employing various control methods such as continuous operation, intermittent operation, or variable speed operation. The conveyor line can be configured with straight lines, curves, and ramps.

[0003] When belt conveyors transport coal in coal mines, a large amount of water is required during the coal mining process, and the coal varies in size. As a result, coal slag will adhere to the surface of the belt conveyor belt. At this time, the slag needs to be scraped off by scrapers installed at the head of the belt conveyor. However, during the scraping process, coal slag will remain on the scraper. As the amount of residual coal slag increases, the friction between the scraper and the belt will increase, thereby affecting the service life of the belt conveyor belt. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides an adjustable scraper structure for a belt conveyor, which solves the technical problem that coal slag will remain on the scraper during the scraping process, and the friction between the scraper and the belt will increase as the amount of residual coal slag increases.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the main technical solutions adopted by the present invention include:

[0008] This invention provides an adjustable scraper structure for a belt conveyor, including a mounting frame installed at both ends of the belt conveyor head and extending downward, a rotating frame rotatably mounted on the mounting frame and located below the belt conveyor head, scraper bodies evenly spaced circumferentially on the rotating frame, and a slag cleaning assembly mounted on the mounting frame and located below the rotating frame.

[0009] The rotating frame has a horizontal axis, and multiple scraper bodies are eccentrically and inclinedly arranged on the rotating frame. As the rotating frame rotates, the multiple scraper bodies move sequentially to the belt surface of the upper belt conveyor and are inclined toward the belt to scrape off the coal slag on the belt surface.

[0010] The slag cleaning assembly cleans the residual slag on the scraper body in sequence as the rotating frame rotates.

[0011] This invention proposes an adjustable scraper structure for a belt conveyor. The scraper body is inclined and close to the surface of the lower belt of the belt conveyor to remove coal slag adhering to the belt surface. After a period of time, a large amount of coal slag will remain on the scraper body. At this time, the mounting frame supports the rotation of the rotating frame, thereby rotating the scraper body without coal slag to the working position, while the scraper body with coal slag is rotated to the lower side. Then, the coal slag on the scraper body is cleaned by the coal slag cleaning component. By rotating the rotating frame, the scraper body can be replaced at intervals, which can effectively improve the service life of the scraper body. Thus, while maintaining the scraping effect of the lower scraper body on coal slag, the friction between it and the belt will not increase, thereby extending the service life of the belt.

[0012] Optionally, the slag cleaning assembly includes a cleaning bracket horizontally mounted on the mounting frame and located below the rotating frame, and a water spray nozzle horizontally disposed on the cleaning bracket for spraying water onto the scraper body rotated to a vertical position.

[0013] Water is sprayed onto the surface of the scraper body through a water nozzle to remove residual coal slag, thereby ensuring cleaning effectiveness while reducing damage to the scraper body and extending its service life.

[0014] Optionally, the water nozzle is provided with two nozzles and the water outlet is vertically elongated. Two sets of swing rods are rotatably arranged in the middle of the upper end face of the cleaning bracket. The two water nozzles are respectively installed on the upper side of one end of the two sets of swing rods. The two sets of swing rods rotate synchronously in opposite directions, driving the two water nozzles to rotate from a close parallel state to a state where the included angle gradually increases, and cleaning the end face of the scraper body with residual coal slag.

[0015] Two sets of rotating swing rods drive two water nozzles to swing. Initially, the two water nozzles are parallel and close together, spraying water with both nozzles aimed at the center of the scraper body. Then, the two sets of swing rods rotate synchronously in opposite directions, causing the water nozzles to swing and gradually increasing the angle between them. This cleans the residual coal slag on the scraper body from the center to both sides. The water outlet of the nozzles is vertical and narrow, which increases the sweeping area and improves the cleaning effect on the scraper body.

[0016] Optionally, a spring is connected to the end of each of the two sets of swing rods away from the water nozzle. A set of wire winding devices is provided on the upper surface of the cleaning bracket on the side of each of the two swing rods away from each other. The wire wound on the two sets of wire winding devices is respectively connected to the end of each of the two swing rods away from the water nozzle. The two sets of wire winding devices wind the wire to drive the swing rod to rotate in the opposite direction. The spring releases the wire with the two sets of wire winding devices to drive the swing rod to rotate in the opposite direction and reset.

[0017] By setting up two sets of wire winding devices and a spring, the two sets of wire winding devices drive two swing rods to rotate in opposite directions, thereby causing the water nozzles to swing and gradually increasing the angle between the two water nozzles. The two sets of wire winding devices release the wires, and the springs recover their strain to drive the two swing rods to rotate and reset. The cleaning work of the water nozzles is achieved through repeated operation.

[0018] Optionally, the scraper body is provided with a total of four blades, and the adjacent scraper bodies are at a 90-degree angle to each other.

[0019] By setting the scraper body to four pieces, so that the adjacent scraper bodies are at a 90-degree angle, the gap between the adjacent scraper bodies is increased, which facilitates cleaning and reduces the amount of coal slag on the working scraper body falling onto the non-working scraper body. On the other hand, it facilitates the maintenance of the adjustable scraper structure.

[0020] Optionally, the spray nozzle is L-shaped and includes two water outlets, with the other water outlet of the spray nozzle being vertically upward and spraying water onto the back of the scraper body that has been rotated to a horizontal position.

[0021] By setting the spray nozzle to an L-shape with two water outlets, the front of the scraper body when rotated to a vertical position can be cleaned at the same time as the back of the scraper body when rotated to a horizontal position, thus improving the cleaning effect.

[0022] Optionally, the scraper body includes a base plate and a scraper head detachably connected to the base plate. The scraper head has a vertically arranged insertion post on one end face away from the slag being scraped. The base plate has an insertion hole for inserting the insertion post. The side end of the insertion post has a vertically arranged positioning slot. The side end of the base plate has a positioning through hole communicating with the insertion hole. The base plate has a positioning rod connected to the positioning through hole by a tension spring, which is inserted into the positioning through hole and positions the insertion post.

[0023] By setting a base plate and a scraper head on the scraper body, the scraper head can be detachably connected to the base plate. That is, the pin on the scraper head is aligned with the insertion hole and inserted. Then, the positioning rod is pulled out so that the pin can be fully inserted. When the positioning rod is released, the positioning rod will be reset under the action of the tension spring and inserted into the positioning through hole on the side of the pin, thereby positioning the scraper head. This solution has two advantages: firstly, after long-term use, when the scraper head is severely worn, the scraper head can be replaced to maintain the scraping effect on coal slag; secondly, it makes the installation and removal of the scraper head easier and more convenient.

[0024] Optionally, the substrate is rotatably connected to the rotating frame, the rotation axis of the substrate is horizontal, and the rotating frame is provided with an adjustment component for synchronously adjusting and positioning the rotation angle of multiple substrates.

[0025] By rotating the substrate to the rotating frame and making the substrate's axis of rotation horizontal, the rotation angle of the substrate can be adjusted synchronously and positioned by adjusting the components, thereby adjusting the cutting angle of the scraper head in removing slag.

[0026] Optionally, the rotating frame includes a rotating shaft rotatably connected to the mounting frame and two rotating disks coaxially spaced and fixed on the rotating shaft. The two ends of the base plate near the scraper head are rotatably connected between the two rotating disks. The adjusting assembly includes an adjusting collar coaxially rotatably fitted onto the rotating shaft and multiple sets of adjusting tracks evenly spaced around the outer circumference of the adjusting collar and corresponding to the scraper body. The outer circumference of the adjusting collar is vertically threaded with a positioning bolt that abuts against the rotating shaft and positions the adjusting collar and the rotating shaft. Each set of adjusting tracks includes two tracks spaced along the length of the rotating shaft of the adjusting collar. The two adjusting tracks in the same set have adjusting grooves along their length on their adjacent end faces. An adjusting T-shaped rod is provided in the middle of the end of the base plate away from the scraper head. The two ends of the adjusting T-shaped rod away from the base plate are respectively embedded in the adjusting grooves and slide along the adjusting grooves as the adjusting collar rotates.

[0027] By coaxially rotating the adjusting collar around the outer circumference of the rotating shaft, the adjusting tracks distributed circumferentially on the outside rotate synchronously when the adjusting collar rotates. At this time, the end of the adjusting T-shaped rod slides along the adjusting groove. The length from the end of the adjusting T-shaped rod away from the substrate to the rotating shaft of the substrate remains unchanged. Therefore, the substrate needs to rotate, thereby adjusting the tilt angle of the scraper body. After adjusting to the appropriate angle, the positioning bolt is installed to position the adjusting collar and the rotating shaft. At this time, the scraper body will not be able to rotate, making it more convenient to synchronously adjust the tilt angle of the scraper body.

[0028] Optionally, the mounting bracket is vertically slidably connected to both ends of the belt conveyor head.

[0029] By vertically sliding the mounting bracket to both ends of the belt conveyor head, the height of the entire scraper structure can be adjusted. This allows for adjustment of the distance between the scraper body and the belt without affecting the functions of the rest of the scraper structure, thus achieving better slag removal.

[0030] (III) Beneficial Effects

[0031] The beneficial effects of this invention are as follows: The adjustable scraper structure of the belt conveyor of this invention has a scraper body that is inclined and close to the surface of the lower end of the belt conveyor, thereby removing coal slag adhering to the belt surface. After a period of time, a large amount of coal slag will remain on the scraper body. At this time, the rotating frame supported by the mounting frame rotates, thereby rotating the scraper body without coal slag to the working position, while the scraper body with coal slag is rotated to the lower side. Then, the coal slag on the scraper body is cleaned by the coal slag cleaning component. By rotating the rotating frame to replace the scraper body at intervals, the service life of the scraper body can be effectively improved. Thus, while maintaining the scraping effect of the lower scraper body on coal slag, the friction between it and the belt will not be increased, thereby extending the service life of the belt. Attached Figure Description

[0032] Figure 1 This is a perspective view of the present invention installed on a belt conveyor according to an embodiment of the invention;

[0033] Figure 2 This is a three-dimensional schematic diagram of an embodiment of the present invention;

[0034] Figure 3 This is a partial explosion diagram of an embodiment of the present invention;

[0035] Figure 4 for Figure 3 Enlarged view of point A;

[0036] Figure 5 This is a three-dimensional schematic diagram from a second perspective of an embodiment of the present invention;

[0037] Figure 6 for Figure 5 Enlarged view of point B.

[0038] [Explanation of Labels in the Attached Image]

[0039] 1. Mounting bracket; 2. Rotating bracket; 21. Rotating shaft; 22. Rotating disk; 3. Scraper body; 31. Base plate; 311. Insertion hole; 312. Positioning through hole; 313. Positioning rod; 32. Scraper head; 33. Insertion post; 331. Positioning slot; 34. Adjusting T-bar; 4. Cinder cleaning assembly; 41. Cleaning bracket; 42. Swinging support rod; 43. Water spray nozzle; 44. Spring; 45. Wire rewinder; 5. Adjusting assembly; 51. Adjusting collar; 52. Adjusting track; 521. Adjusting slide; 53. Positioning bolt. Detailed Implementation

[0040] To better explain and facilitate understanding of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0041] The adjustable scraper structure for the belt conveyor proposed in this invention has a scraper body that is inclined and close to the surface of the lower belt of the belt conveyor, thereby removing coal slag adhering to the belt surface. After a period of time, a large amount of coal slag will remain on the scraper body. At this time, the rotating frame supported by the mounting frame rotates, thereby rotating the scraper body without coal slag to the working position, while the scraper body with coal slag rotates to the lower side. Then, the coal slag on the scraper body is cleaned by the coal slag cleaning component. By rotating the rotating frame, the scraper body can be replaced at intervals, which can effectively improve the service life of the scraper body. Thus, while maintaining the scraping effect of the lower scraper body on coal slag, the friction between it and the belt will not increase, thereby extending the service life of the belt.

[0042] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention can be understood more clearly and thoroughly, and that the scope of the present invention can be fully conveyed to those skilled in the art.

[0043] Reference Figures 1-6 An adjustable scraper structure for a belt conveyor includes a mounting frame 1 installed at both ends of the belt conveyor head and extending downwards, a rotating frame 2 rotatably mounted on the mounting frame 1 and located below the belt conveyor head, four scraper bodies 3 evenly spaced circumferentially on the rotating frame 2, and a slag cleaning assembly 4 mounted on the mounting frame 1 and located below the rotating frame 2.

[0044] The rotating shaft of the rotating frame 2 is horizontal, and the multi-scraper body 3 is eccentrically inclined on the rotating frame 2. The multi-scraper body 3 moves sequentially to the belt surface of the upper belt conveyor as the rotating frame 2 rotates and is inclined toward the belt to scrape off the coal slag on the belt surface.

[0045] The slag cleaning component 4 cleans the residual slag on the scraper body 3 sequentially as the rotating frame 2 rotates. The scraper body 3 is inclined and close to the surface of the lower belt of the belt conveyor, thereby removing the slag adhering to the belt surface. After a period of time, a large amount of slag will remain on the scraper body 3. At this time, the rotating frame 2 is supported by the mounting frame 1 to rotate, thereby rotating the scraper body 3 without slag to the working position, while the scraper body 3 with slag is rotated to the lower side. Then, the slag on the scraper body 3 is cleaned by the slag cleaning component 4.

[0046] Mounting bracket 1 consists of two pieces, both of which are connected to the two ends of the belt conveyor head by synchronous vertical sliding via cylinders. This allows the height of the entire scraper structure to be adjusted, thereby adjusting the distance between the scraper body 3 and the belt without affecting the other structural functions of the scraper structure, thus achieving a better slag removal effect.

[0047] The scraper body 3 includes a base plate 31 and a scraper head 32 detachably connected to the base plate 31. The scraper head 32 has a vertically integrated insertion post 33 on one end face away from the slag being scraped. The base plate 31 has an insertion hole 311 for the insertion post 33 to be inserted. The side end of the insertion post 33 has a vertically opened positioning slot 331. The side end of the base plate 31 has a positioning through hole 312 communicating with the insertion hole 311. The base plate 31 has a positioning rod 313 connected to the positioning through hole 312 and positioned by the insertion post 33 via a tension spring. The insertion post 33 on the scraper head 32 is aligned with the insertion hole 311 and inserted. Then, the positioning rod 313 is pulled out so that the insertion post 33 can be fully inserted. The positioning rod 313 is released, and the positioning rod 313 will be reset under the action of the tension spring and inserted into the positioning through hole 312 on the side of the insertion post 33, thereby positioning the scraper head 32. On the one hand, after long-term use, the scraper head 32 is severely worn and can be replaced to maintain the scraping effect on coal slag. On the other hand, it makes the installation and removal of the scraper head 32 easier and more convenient.

[0048] The substrate 31 is rotatably connected to the rotating frame 2. The axis of rotation of the substrate 31 is horizontal. The rotating frame 2 is provided with an adjustment component 5 that synchronously adjusts and positions the rotation angle of multiple substrates 31.

[0049] The rotating frame 2 includes a rotating shaft 21 that is rotatably connected to the mounting frame 1 via bearings and driven by a motor, and two rotating disks 22 that are coaxially spaced and welded to the rotating shaft 21. The two ends of the base plate 31 near the scraper head 32 are rotatably connected between the two rotating disks 22 via a rotating shaft.

[0050] The adjustment assembly 5 includes an adjustment collar 51 coaxially rotatably mounted on the rotating shaft 21 and multiple sets of adjustment tracks 52 evenly spaced and welded around the outer periphery of the adjustment collar 51, corresponding one-to-one with the scraper body 3. The outer periphery of the adjustment collar 51 is vertically threaded with positioning bolts 53 that abut against the rotating shaft 21 and position the adjustment collar 51 and the rotating shaft 21. Each set of adjustment tracks 52 includes two tracks that are spaced apart along the length of the rotating shaft of the adjustment collar 51. The end faces of the two adjustment tracks 52 in the same set that are close to each other are provided with adjustment grooves 521 along the length direction. An adjustment T-shaped rod 34 is fixed to the middle of the end of the base plate 31 away from the scraper head 32 by bolts. The two ends of the adjustment T-shaped rod 34 away from the base plate 31 are respectively embedded in the adjustment grooves 521 and slide along the adjustment grooves 521 as the adjustment collar 51 rotates.

[0051] When the adjusting collar 51 rotates, the adjusting tracks 52 distributed circumferentially on the outside rotate synchronously. At this time, the end of the adjusting T-shaped rod 34 slides along the adjusting groove 521. The length from the end of the adjusting T-shaped rod 34 away from the base plate 31 to the axis of rotation of the base plate 31 remains unchanged. Therefore, the base plate 31 needs to rotate to adjust the tilt angle of the scraper body 3. After adjusting to the appropriate angle, the positioning bolt 53 is installed to position the adjusting collar 51 and the rotating shaft 21. At this time, the scraper body 3 will not be able to rotate, making it more convenient to adjust the tilt angle of the scraper body 3 synchronously.

[0052] The slag cleaning assembly 4 includes a cleaning bracket 41 that is horizontally installed on the mounting frame 1 by bolts and located on the lower side of the rotating frame 2, two sets of swing rods 42 that are rotatably connected to the middle of the upper end face of the cleaning bracket 41 by a rotating shaft, and water nozzles 43 that are fixedly installed on the upper side of one end of each of the two sets of swing rods 42 by bolts. The water nozzles 43 spray water onto the scraper body 3 that has been rotated to a vertical and horizontal state.

[0053] Two swing rods 42 are fixedly connected to springs 44 at the ends away from the water nozzles 43 by bolts. On the upper surface of the cleaning bracket 41, a set of wire winding devices 45 are fixed to the side away from the two swing rods 42 by bolts. The wires wound on the two sets of wire winding devices 45 are respectively connected to the ends of the two swing rods 42 away from the water nozzles 43. The two sets of wire winding devices 45 wind up the wires to drive the swing rods 42 to rotate in the opposite direction. The springs 44 release the wires with the two sets of wire winding devices 45 to drive the swing rods 42 to rotate in the opposite direction and reset.

[0054] The nozzle 43 is L-shaped and includes two water outlets. The water outlets are vertically elongated. One water outlet of the nozzle 43 is horizontally open, and the other water outlet is vertically upward.

[0055] The two sets of swing rods 42 rotate synchronously in opposite directions, driving the two water nozzles 43 to rotate from a nearly parallel state to a state where the included angle gradually increases, and cleaning the end face of the scraper body 3 for residual coal slag.

[0056] Two sets of wire winding devices 45 drive two swing rods 42 to rotate in opposite directions, which in turn drives the water nozzles 43 to swing and gradually increases the included angle between the two water nozzles 43. The two sets of wire winding devices 45 release the wire, and the spring 44 recovers its strain to drive the two swing rods 42 to rotate and reset.

[0057] Initially, the two water nozzles 43 are parallel and close together. At this time, water is sprayed, and the four water outlets of the two water nozzles 43 spray water onto the two scraper bodies 3 that have been rotated to a horizontal and vertical position respectively. Then, the two sets of swing support rods 42 are rotated in opposite directions in sync, which in turn drives the water nozzles 43 to swing and gradually increases the included angle between the two water nozzles 43, thereby cleaning the residual coal slag on the scraper body 3 from the middle to both sides.

[0058] In the description of this invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0059] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0060] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "over," or "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0061] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0062] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An adjustable scraper structure for a belt conveyor, characterized in that: It includes a mounting frame (1) installed at both ends of the head of the belt conveyor and extending downward, a rotating frame (2) rotatably mounted on the mounting frame (1) and located on the lower side of the head of the belt conveyor, a scraper body (3) evenly spaced on the rotating frame (2) in the circumferential direction, and a slag cleaning assembly (4) mounted on the mounting frame (1) and located on the lower side of the rotating frame (2). The rotating frame (2) has a horizontal axis. Multiple scraper bodies (3) are eccentrically inclined on the rotating frame (2). As the rotating frame (2) rotates, the multiple scraper bodies (3) move sequentially to the belt surface of the upper belt conveyor and are inclined toward the belt to scrape off the coal slag on the belt surface. The slag cleaning component (4) cleans the residual slag on the scraper body (3) in sequence as the rotating frame (2) rotates.

2. The adjustable scraper structure of the belt conveyor as described in claim 1, characterized in that: The slag cleaning assembly (4) includes a cleaning bracket (41) horizontally installed on the mounting frame (1) and located below the rotating frame (2), and a water spray nozzle (43) horizontally set on the cleaning bracket (41) to spray water onto the scraper body (3) which has been rotated to a vertical position.

3. The adjustable scraper structure of the belt conveyor as described in claim 2, characterized in that: Two water nozzles (43) are provided, and the water outlet is vertically elongated. Two sets of swing rods (42) are rotatably arranged in the middle of the upper end face of the cleaning bracket (41). The two water nozzles (43) are respectively installed on the upper side of one end of the two sets of swing rods (42). The two sets of swing rods (42) rotate synchronously in opposite directions, driving the two water nozzles (43) to rotate from a close parallel state to a state where the included angle gradually increases, and cleaning the end face of the residual coal slag on the scraper body (3).

4. The adjustable scraper structure of the belt conveyor as described in claim 3, characterized in that: Two sets of swing rods (42) are connected to springs (44) at the ends away from the water nozzles (43). On the upper surface of the cleaning bracket (41), a set of wire winding devices (45) is provided on the side away from the two swing rods (42). The wires wound on the two sets of wire winding devices (45) are respectively connected to the ends of the two swing rods (42) away from the water nozzles (43). The two sets of wire winding devices (45) wind up the wires to drive the swing rods (42) to rotate in the opposite direction. The springs (44) release the wires with the two sets of wire winding devices (45) to drive the swing rods (42) to rotate in the opposite direction and reset.

5. The adjustable scraper structure of the belt conveyor as described in claim 2, characterized in that: The scraper body (3) has four blades, and the adjacent scraper bodies (3) are at a 90-degree angle to each other.

6. The adjustable scraper structure of the belt conveyor as described in claim 5, characterized in that: The spray nozzle (43) is L-shaped and includes two water outlets. The other water outlet of the spray nozzle (43) is vertically upward and sprays water onto the back of the scraper body (3) which is rotated to a horizontal position.

7. The adjustable scraper structure of the belt conveyor as described in claim 1, characterized in that: The scraper body (3) includes a base plate (31) and a scraper head (32) detachably connected to the base plate (31). The scraper head (32) has a vertically arranged insertion post (33) on one end face away from the slag being scraped. The base plate (31) has an insertion hole (311) for the insertion post (33) to be inserted. The side end of the insertion post (33) has a vertically arranged positioning slot (331). The side end of the base plate (31) has a positioning through hole (312) communicating with the insertion hole (311). The base plate (31) has a positioning rod (313) connected to the positioning through hole (312) by a tension spring, which is inserted into the positioning through hole (312) and positions the insertion post (33).

8. The adjustable scraper structure of the belt conveyor as described in claim 7, characterized in that: The substrate (31) is rotatably connected to the rotating frame (2). The axis of rotation of the substrate (31) is horizontal. The rotating frame (2) is provided with an adjustment component (5) for synchronously adjusting and positioning the rotation angle of multiple substrates (31).

9. The adjustable scraper structure of the belt conveyor as described in claim 8, characterized in that: The rotating frame (2) includes a rotating shaft (21) rotatably connected to the mounting frame (1) and two rotating disks (22) coaxially spaced and fixed on the rotating shaft (21). The two ends of the base plate (31) near the scraper head (32) are rotatably connected between the two rotating disks (22). The adjusting assembly (5) includes an adjusting collar (51) coaxially rotatably fitted onto the rotating shaft (21) and multiple sets of adjusting tracks (52) evenly spaced around the outer periphery of the adjusting collar (51) and corresponding to the scraper body (3). The outer periphery of the adjusting collar (51) is vertically threaded with a contact point that abuts against the rotating shaft (21). The positioning bolts (53) of the adjusting collar (51) and the rotating shaft (21) are positioned. Each set of adjusting rails (52) includes two rails that are spaced apart along the length of the rotating shaft of the adjusting collar (51). The two adjusting rails (52) in the same set have an adjusting groove (521) along the length of their respective end faces. An adjusting T-shaped rod (34) is provided at the middle of the end of the base plate (31) away from the scraper (32). The two ends of the adjusting T-shaped rod (34) away from the base plate (31) are respectively embedded in the adjusting groove (521) and slide along the adjusting groove (521) as the adjusting collar (51) rotates.

10. The adjustable scraper structure of the belt conveyor as described in claim 1, characterized in that: The mounting bracket (1) is vertically slidably connected to both ends of the head of the belt conveyor.

Images