A resistance-reducing coal conveyor belt

Abstract

The present invention relates to the technical field of belt conveyors, and in particular to a resistance-reducing coal conveyor belt conveyor, comprising a conveyor belt component, a frame, rollers mounted at both ends of the frame, a belt sleeved between the two rollers, and an adjustment component mounted on the conveyor belt component. A hydraulic cylinder in the adjustment component drives one of the baffles to flip, so that when the belt is calibrated and positioned, the lower surface of the baffle is separated from the upper surface of the belt to avoid interference and resistance. The hydraulic cylinder also drives the roller block to move, bringing the roller block closer to the belt. At the same time, the two roller blocks on the left and right sides are connected by a lever plate mounted on a scraper, so that the roller block on the other side also approaches the belt. The two roller blocks are synchronously closed toward the middle, squeezing the belt in the middle, so that the belt that has been running for a long time and has deviated can be restored to the center.

Description

Technical Field

[0001] The present invention relates to the technical field of belt conveyors, and in particular to a resistance-reducing coal conveying belt conveyor. Background Art

[0002] Coal conveyors, also known as belt conveyors, are the primary transport equipment in coal preparation plants and mines. Common belt conveyors include general-purpose belt conveyors, patterned belt conveyors, and wire rope belt conveyors. Based on their installation characteristics, they can be categorized as fixed belt conveyors and movable belt conveyors. Coal preparation plants and mines primarily use fixed belt conveyors.

[0003] When the coal conveyor belt is in motion for a long time, the belt mounted on the roller will deviate and even touch the side of the frame, causing the resistance of the coal conveyor belt to increase, affecting the efficiency of the coal conveyor belt and the service life of the belt. Summary of the Invention

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of this application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions should not be used to limit the scope of the present invention.

[0005] In view of the problem that the above-mentioned existing resistance-reducing coal conveyor belt has the problem that when the coal conveyor belt conveyor moves for a long time, the belt mounted on the roller will deviate and even contact the side of the frame, resulting in greater resistance of the coal conveyor belt conveyor, affecting the efficiency of the coal conveyor belt conveyor and the service life of the belt, the present invention is proposed.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a resistance-reducing coal conveyor belt, comprising a conveyor belt component, including a frame and rollers installed at both ends of the frame, and a belt sleeved between the two rollers; an adjustment component, installed on the conveyor belt component, comprising two baffles symmetrically arranged for rotation above the belt, a baffle roller member is provided below each of the baffles, the baffle roller members are located on both sides of the belt, the two groups of the baffle roller members are rotatably connected by a lever sheet, a scraper is provided above the lever sheet, a water spray member is provided below the belt, and the baffle roller member and the water spray member are connected by a gear member.

[0007] As a preferred solution of the resistance-reducing coal conveyor belt conveyor described in the present invention, the adjustment component also includes two mounting plates symmetrically arranged on the upper surface of the frame, a swivel seat is provided on the side of each mounting plate, the baffle is rotatably arranged on the swivel seat, a hydraulic cylinder is provided on the side of one of the mounting plates, a slide is provided on the output shaft of the hydraulic cylinder, a slide groove is opened on the side of one of the baffles, and the slide moves along the slide groove.

[0008] As a preferred solution of the resistance-reducing coal conveyor belt conveyor described in the present invention, the roller stop member includes an upper plate and a plurality of round rods installed on the lower surface of the upper plate, the outer surface of the round rods is installed with a double sleeve through a bearing, the upper surface of the upper plate is fixedly connected to the output shaft of the hydraulic cylinder through a connecting rod, and the side surface of the upper plate is installed on the upper surface of the frame through a telescopic rod.

[0009] As a preferred solution of the resistance-reducing coal conveyor belt conveyor of the present invention, the water spraying member includes a shell installed below the frame, a plurality of shower-type nozzles are provided on the upper surface of the shell, and a water inlet pipe is provided on one end surface of the shell.

[0010] As a preferred solution of the resistance-reducing coal conveyor belt conveyor described in the present invention, a piston plate is provided inside the shell, a transverse groove is provided on one side of the piston plate, a turntable is provided on one side of the piston plate, a boss is provided at the edge of the end face of the turntable, the boss slides along the transverse groove, and a first bevel gear is provided on the other end face of the turntable, which is engaged with a second bevel gear provided at the lower end of one of the double sleeves.

[0011] As a preferred solution of the resistance-reducing coal conveyor belt conveyor described in the present invention, a vertical groove is provided on the lower surface of the frame, both ends of the scraper slide along the vertical groove, and the midpoint of the scraper is rotatably connected to the lever piece through a rotating shaft.

[0012] As a preferred solution of the resistance-reducing coal conveyor belt conveyor of the present invention, the two adjacent round rods that are diagonally staggered in any one of the left and right groups of the blocking rollers are respectively slidably arranged in the limiting grooves at both ends of the lever piece.

[0013] As a preferred solution of the resistance-reducing coal conveyor belt conveyor of the present invention, a spiral groove is provided on the upper surface of the lever piece, and a protrusion is provided on the lower surface of the scraper, and the protrusion slides along the spiral groove.

[0014] As a preferred solution of the resistance-reducing coal conveyor belt conveyor described in the present invention, a sliding rod is provided on the side of the baffle on the other side, one end of the sliding rod moves along the sliding groove on the side of the baffle through the sliding seat, and the sliding rod slides along the hole opened on the mounting plate.

[0015] As a preferred solution of the resistance-reducing coal conveyor belt conveyor of the present invention, the rollers are provided in two groups, respectively located at the two ends of the frame, and two in each group are distributed up and down, and any of the rollers located at the bottom is connected to a motor for transmission.

[0016] The beneficial effects of the present invention are as follows: the hydraulic cylinder in the adjustment component drives one of the baffles to flip, so that when the belt is calibrated and positioned, the lower surface of the baffle is separated from the upper surface of the belt to avoid interference and resistance. The hydraulic cylinder also drives the stop roller to move, and the stop roller is brought closer to the belt. At the same time, the two stop rollers on the left and right sides are connected by a lever piece installed on the scraper, so that the stop roller on the other side also approaches the belt. The two stop rollers are synchronously closed toward the middle, squeezing the belt in the middle, so that the belt that has been running for a long time and deviated can be restored to the center. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort. Among them:

[0018] Figure 1 This is a schematic diagram of the overall structure of the resistance-reducing coal conveyor belt conveyor during normal operation of the present invention.

[0019] Figure 2 This is a schematic diagram of the overall belt structure of the drag-reducing coal conveyor belt conveyor during calibration.

[0020] Figure 3 This is a schematic structural diagram from the bottom perspective of the overall normal operation of the resistance-reducing coal conveyor belt conveyor of the present invention.

[0021] Figure 4 This is a schematic diagram of the top view of the resistance-reducing coal conveyor belt of the present invention.

[0022] Figure 5 for Figure 4 Schematic diagram of the AA-axis cross-section structure.

[0023] Figure 6 for Figure 5 Schematic diagram of the partially enlarged structure at point C in the middle.

[0024] Figure 7 for Figure 4 Schematic diagram of the BB section. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive of other embodiments.

[0028] Furthermore, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, when describing the embodiments of the present invention, cross-sectional views illustrating device structures may be partially enlarged and not to scale. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, the three-dimensional dimensions of length, width, and depth should be included.

[0029] Example 1

[0030] Reference Figure 1-3 , which is the first embodiment of the present invention, provides a resistance-reducing coal conveyor belt, including a conveyor belt component 100, including a frame 101 and rollers 102 installed at both ends of the frame 101, and a belt 103 sleeved between the two rollers 102; an adjustment component 200, installed on the conveyor belt component 100, including two baffles 201 symmetrically arranged above the belt 103, a baffle roller 202 is provided below each of the baffles 201, the baffle roller 202 is located on both sides of the belt 103, the two groups of the baffle rollers 202 are rotatably connected by a lever piece 204, a scraper 205 is provided above the lever piece 204, a water spraying component 206 is provided below the belt 103, and the baffle roller 202 and the water spraying component 206 are connected by a gear component 207. There are two groups of rollers 102, one at each end of the frame 101, and two rollers in each group are distributed up and down. Any roller 102 located at the bottom is connected to the motor 104.

[0031] In this embodiment, during normal coal transportation, the lower ends of the two baffles 201 are attached to the upper surface of the belt 103, and a side baffle is formed above the conveyor belt component 100, which can accommodate more coal, prevent the coal from spilling during transportation, and ensure normal transportation of coal.

[0032] In this embodiment, the hydraulic cylinder 208 in the adjustment component 200 drives one of the baffles 201 to flip, so that the lower surface of the baffle 201 is separated from the upper surface of the belt 103. At the same time, the hydraulic cylinder 208 also drives the stop roller 202 to move, and the stop roller 202 is close to the belt 103. At the same time, the two stop rollers 202 on the left and right sides are connected by a lever piece 204 installed on the scraper 205, so that the stop roller 202 on the other side also moves close to the belt 103. The two stop rollers 202 are synchronously closed toward the middle, In order to squeeze the middle belt 103 and make the belt 103 that has been running for a long time and deviated return to the center, the rotation of the lever member drives the scraper 205 to move up and fit the lower surface of the belt 103 to clean its surface. At the same time, since the roller member 202 fits the belt 103, the double sleeve 202c on the roller member 202 rotates and drives the piston plate 206d in the water spray member 206 to rise and fall through the gear member 207, realizing the process of absorbing and spraying water, and flushing the lower surface of the belt 103.

[0033] Example 2

[0034] Reference Figure 1-5 , which is the second embodiment of the present invention. This embodiment differs from the first embodiment in that: a drag-reducing coal conveyor belt, wherein the adjustment component 200 further includes two mounting plates 203 symmetrically arranged on the upper surface of the frame 101, each mounting plate 203 having a swivel seat provided on its side, and the baffle 201 rotatably mounted on the swivel seat. A hydraulic cylinder 208 is provided on the side of one of the mounting plates 203, and a slide 208a is provided on the output shaft of the hydraulic cylinder 208. A slide groove 201a is provided on the side of one of the baffles 201, and the slide 208a moves along the slide groove 201a. A slide rod 209 is provided on the side of the baffle 201 on the other side, and one end of the slide rod 209 moves along the slide groove 201a on the side of the baffle 201 through the slide 208a, and the slide rod 209 slides along the hole 203b provided on the mounting plate 203.

[0035] It should be noted that a mounting plate 203 is installed on the upper surface of the left and right sides of the frame 101, and a baffle 201 is rotatably set on each mounting plate 203. A hydraulic cylinder 208 is set on the side of one baffle 201, and a slide rod 209 is set on the side of the other baffle 201. The output shaft of the hydraulic cylinder 208 and the front end of the slide rod 209 both slide in the slide groove 201a set on the back of each baffle 201 through the slide seat 208a.

[0036] In this embodiment, the extension of the hydraulic cylinder 208 drives the output shaft to extend, and the output shaft drives the slide 208a to move forward. The slide 208a moves along the slide groove 201a on the side of the baffle 201, pushing the baffle 201 to rotate with the swivel seat on the mounting plate 203, so that the lower surface is separated from the upper surface of the belt 103. When the extension of the output shaft drives the stop roller 202 connected to it to move forward, the forward movement of the stop roller 202 drives the stop roller 202 on the other side to move forward through the lever piece 204. The forward movement of the stop roller 202 drives the slide bar 209 on the other side to move through the connecting rod 202d. The slide bar 209 slides along the hole 203b, and the front end of the slide bar 209 also moves along the slide groove 201a on the side of the side baffle 201 through the slide 208a, thereby realizing the synchronous rotation and lifting process of the baffles 201 on both sides.

[0037] Example 3

[0038] Reference Figure 4-7 , which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that: a resistance-reducing coal conveyor belt conveyor, the adjustment component 200 also includes a roller block 202, the roller block 202 includes an upper plate 202a and a plurality of round rods 202b installed on the lower surface of the upper plate 202a, the outer surface of the round rod 202b is installed with a double sleeve 202c through a bearing, the upper surface of the upper plate 202a is fixedly connected to the output shaft of the hydraulic cylinder 208 through a connecting rod 202d, and the side of the upper plate 202a is installed on the upper surface of the frame 101 through a telescopic rod 202e.

[0039] It should be noted that a plurality of round rods 202b are arranged at equal intervals on the lower surface of the upper plate 202a, and the outer wall of each round rod 202b is provided with a double sleeve 202c through a bearing sleeve, so that the double sleeve 202c can rotate freely outside the round rod 202b. When the double sleeve 202c fits the side wall of the belt 103, it will rotate freely with it. The normal length of the double sleeve 202c is greater than the distance between the upper and lower layers of the belt 103. The double sleeve 202c with a second bevel gear 207b at the lower end is provided with an extension section, wherein the double sleeve 202c is divided into two upper and lower tubes, and the two can rotate freely with each other through bearings.

[0040] The upper end surfaces of the left and right upper plates 202a are respectively installed on the front end of the output shaft of the hydraulic cylinder 208 or the front end of the sliding rod 209 through the connecting rod 202d, and two telescopic rods 202e are provided on the side of each upper plate 202a of the left and right upper plates 202a, and one end of the telescopic rod 202e is installed on the frame 101 for supporting the roller-blocking member 202.

[0041] In this embodiment, the hydraulic cylinder 208 is telescopically moved through the output shaft to drive the connecting rod 202d to move, and the connecting rod 202d drives the upper plate 202a, the round rods 202b located below the upper plate 202a, and the double sleeves 202c installed on the round rods 202b to move synchronously through the telescopic rod 202e. The forward movement of the round rod 202b drives the round rod 202b on the other side to move through the lever piece 204. Since the round rod 202b is fixed to the upper plate 202a, it drives the upper plate 202a on the other side to move through the telescopic rod 202e, thereby realizing the synchronous closing or separation of the two roller members 202 on the left and right sides, and repositioning and aligning the deviated belt 103. At the same time, each double sleeve 202c contacts the upper belt 103 and the lower belt 103 respectively, and rotates freely with them.

[0042] Example 4

[0043] Reference Figure 4-7 , which is the fourth embodiment of the present invention. This embodiment differs from the third embodiment in that: a drag-reducing coal conveyor belt, wherein the adjustment component 200 further includes a vertical groove 101a formed on the lower surface of the frame 101, along which both ends of the scraper 205 slide, and the midpoint of the scraper 205 is rotatably connected to the lever piece 204 via a rotating shaft. Two adjacent round rods 202b, diagonally offset from each other, in either set of left and right roller stoppers 202 are slidably disposed in the limiting grooves 204a at both ends of the lever piece 204. A spiral groove 204b is formed on the upper surface of the lever piece 204, and a protrusion 205a is formed on the lower surface of the scraper 205, which slides along the spiral groove 204b.

[0044] It should be noted that the two adjacent round rods 202b that are diagonally staggered in any of the left and right groups of roller stop members 202 are specifically the first round rod 202b on one side and the second round rod 202b on the other side, or the second round rod 202b on one side and the third round rod 202b on the other side. In this embodiment, the two ends of the lever piece 204 correspond to the first round rod 202b and the second round rod 202b of the left and right groups of roller stop members 202, that is, the first round rod 202b and the second round rod 202b slide in the left and right limiting grooves 204a of the lever piece 204, respectively.

[0045] The spiral groove 204b is set with the rotating shaft as the center, and the protrusion 205a is located on one side of the rotating shaft. At the same time, the protrusion 205a is in the spiral groove 204b, so that when the spiral groove 204b rotates, the protrusion 205a located in the spiral groove 204b moves up and down, causing the scraper 205 to move up and down as well.

[0046] In this embodiment, the extension and retraction of the hydraulic cylinder 208 drives the stop roller 202 to move through the connecting rod 202d, and the stop roller 202 drives the lever piece 204 to rotate through the round rod 202b. The rotation of the lever piece 204 is used to synchronize the movement of the stop roller 202 on the other side. On the other hand, the rotation of the lever piece 204 also rotates the spiral groove 204b. The rotation of the spiral groove 204b causes the protrusion 205a located inside to change in height. The protrusion 205a drives the scraper 205 to change in height, and then the scraper 205 moves up and down along the limiting groove 204a. The rise of the scraper 205 is in contact with the lower surface of the belt 103. When the belt 103 continues to move, the coal adhered to the surface of the belt 103 can be scraped and cleaned.

[0047] Example 5

[0048] Reference Figure 4-7 The fifth embodiment of the present invention differs from the fourth embodiment in that: a drag-reducing coal conveyor belt is provided, wherein the adjustment component 200 further includes a water spraying member 206. The water spraying member 206 comprises a housing 206a mounted below the frame 101. The upper surface of the housing 206a is provided with a plurality of shower-type nozzles 206b. One end surface of the housing 206a is provided with a water inlet pipe 206c. A piston plate 206d is provided within the housing 206a. A transverse groove 206e is provided on one side of the piston plate 206d. A rotary disk 206f is provided on one side of the piston plate 206d. A protrusion 206g is provided on the edge of the end surface of the rotary disk 206f. The protrusion 206g slides along the transverse groove 206e. A first bevel gear 207a is provided on the other end surface of the rotary disk 206f. The first bevel gear 207a meshes with a second bevel gear 207b provided at the lower end of one of the double sleeves 202c.

[0049] It should be noted that the shell 206a is set to be rectangular, the piston plate 206d is also set to be rectangular, and the side of the piston plate 206d is provided with multiple grooves along the inside of the shell 206a through protruding feet for limited sliding, so that the piston plate 206d can only move up and down inside the shell 206a, which is combined with the one-way water inlet valve provided in the water inlet pipe 206c and the one-way water outlet valve provided at each nozzle 206b, so that the movement of the piston plate 206d can absorb water through the water inlet pipe 206c and the nozzle 206b can drain water.

[0050] In this embodiment, when the roller stopper 202 is closed to the specified position, that is, the belt 103 is located in the middle of the roller 102, the double sleeve 202c with the second bevel gear 207b is installed in the roller stopper 202, and the second bevel gear 207b is in contact with and meshed with the first bevel gear 207a of the water spraying member 206. Since the lower half of the double sleeve 202c is in contact with the lower side of the belt 103, the lower half of the double sleeve 202c rotates, and the second bevel gear 207b fixed to the lower half of the double sleeve 202c also rotates accordingly, and the rotation of the second bevel gear 207b drives The first bevel gear 207a rotates, and the first bevel gear 207a drives the turntable 206f fixed thereto to rotate. The rotation of the turntable 206f drives the piston plate 206d with a transverse groove 206e on the side to move up and down in the shell 206a through the boss 206g. When the piston plate 206d descends, water in the external water storage device is drawn from the water inlet pipe 206c into the interior. When the piston plate 206d moves upward, the water inside the shell 206a is squeezed out through each nozzle 206b to rinse and clean the lower surface of the belt 103 above the nozzle 206b.

[0051] It is important to note that the construction and arrangement of the present application shown in a number of different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, directional changes, etc.) without departing substantially from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structures. Other replacements, modifications, changes, and omissions may be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0052] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0053] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A resistance-reducing coal conveyor belt, characterized by: include, The conveyor belt component (100) comprises a frame (101), rollers (102) mounted on both ends of the frame (101), and a belt (103) sleeved between the two rollers (102); An adjusting component (200) is installed on the conveyor belt component (100), comprising two baffles (201) symmetrically arranged above the belt (103), a roller block (202) being arranged below each baffle (201), the roller block (202) being located on both sides of the belt (103), the two groups of roller block (202) being rotatably connected via a lever plate (204), a scraper (205) being arranged above the lever plate (204), a water spraying component (206) being arranged below the belt (103), and the roller block (202) and the water spraying component (206) being transmission-connected via a gear (207); The adjustment component (200) further comprises two mounting plates (203) symmetrically arranged on the upper surface of the frame (101), a swivel seat being arranged on the side of each mounting plate (203), the baffle (201) being rotatably arranged on the swivel seat, a hydraulic cylinder (208) being arranged on the side of one of the mounting plates (203), an output shaft of the hydraulic cylinder (208) being arranged with a slide seat (208a), a slide groove (201a) being opened on the side of one of the baffles (201), and the slide seat (208a) moving along the slide groove (201a); The roller blocking member (202) comprises an upper plate (202a) and a plurality of round rods (202b) mounted on the lower surface of the upper plate (202a); the outer surfaces of the round rods (202b) are mounted with double sleeves (202c) via bearings; the upper surface of the upper plate (202a) is fixedly connected to the output shaft of the hydraulic cylinder (208) via a connecting rod (202d); and the side surface of the upper plate (202a) is mounted on the upper surface of the frame (101) via a telescopic rod (202e); The water spraying member (206) comprises a shell (206a) installed below the frame (101), a plurality of shower-type spray heads (206b) are provided on the upper surface of the shell (206a), and a water inlet pipe (206c) is provided on one end surface of the shell (206a); A piston plate (206d) is provided inside the housing (206a), a transverse groove (206e) is provided on one side of the piston plate (206d), a turntable (206f) is provided on one side of the piston plate (206d), a boss (206g) is provided at the edge of the end face of the turntable (206f), the boss (206g) slides along the transverse groove (206e), and a first bevel gear (207a) is provided on the other end face of the turntable (206f), and the first bevel gear (207a) is engaged with a second bevel gear (207b) provided at the lower end of one of the double sleeves (202c); A vertical groove (101a) is provided on the lower surface of the frame (101), both ends of the scraper (205) slide along the vertical groove (101a), and the midpoint of the scraper (205) is rotatably connected to the lever piece (204) via a rotating shaft.

2. The resistance-reducing coal conveyor belt according to claim 1, characterized in that: Two adjacent round rods (202b) in any one of the left and right groups of roller blocking members (202) that are staggered and distributed diagonally are respectively slidably arranged in the limiting grooves (204a) at both ends of the lever sheet (204).

3. The drag-reducing coal conveyor belt according to claim 2, characterized in that: The upper surface of the lever piece (204) is provided with a spiral groove (204b), and the lower surface of the scraper (205) is provided with a convex block (205a), and the convex block (205a) slides along the spiral groove (204b).

4. The drag-reducing coal conveyor belt according to claim 1 or 3, characterized in that: A sliding rod (209) is provided on the side of the baffle (201) on the other side, and one end of the sliding rod (209) moves along the sliding groove (201a) on the side of the baffle (201) through the sliding seat (208a), and the sliding rod (209) slides along the hole (203b) opened on the mounting plate (203).

5. The resistance-reducing coal conveyor belt according to claim 1 or 3, characterized in that: The rollers (102) are provided in two groups, respectively located at the two ends of the frame (101), and each group of two rollers is distributed up and down, and any of the rollers (102) located at the bottom is connected to a motor (104) for transmission.

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