A conveyor belt support roller assembly

Abstract

This invention belongs to the technical field of conveyor belt idler assembly, specifically a conveyor belt idler assembly, including two sets of fixed plates fixedly installed on both sides of the conveyor belt, and a rotary roller assembly disposed between the two sets of fixed plates. A sleeve for supporting the belt is rotatably fitted on the rotary roller assembly, and two sets of steel bars are spirally wound on the sleeve. Because the steel bars are spirally shaped, there is a gap between the belt and the sleeve, allowing adhering substances on the return belt to pass through the gap, preventing the adhering substances from accumulating between the belt and the sleeve. Secondly, because the steel bars are wound from the middle of the sleeve to both sides, during the rotation of the steel bars, the steel bars provide the belt with a spiral rotation force to both sides, thereby balancing the lateral deviation of the belt and making the belt operation more stable.

Description

Technical Field

[0001] This invention belongs to the technical field of conveyor belt idler assembly, specifically a conveyor belt idler assembly. Background Technology

[0002] Belt conveyors have advantages such as large conveying capacity, simple structure, convenient maintenance, and standardized components. They are widely used in mining, metallurgy, coal and other industries to transport loose materials or packaged goods. For some belts with a center distance of more than 3 meters, the belt's own flexibility will cause the return belt to sag. Therefore, it is necessary to add upward idlers to the bottom of the belt return. The idlers provide upward support for the belt, reduce the belt's own load, and improve the belt's service life.

[0003] Patent CN211225079U discloses a three-section return idler for a belt conveyor, including a frame, a conveyor belt, and two sets of first support plates. The two sets of first support plates are symmetrically arranged on the frame, and second support plates are provided on both sides of each first support plate. A first idler is located at the upper end of each first support plate and is rotatably connected to the first support plate via a bearing seat. The height of the second support plate is half that of the first support plate, and a second idler is located between the second and first support plates. One end of the second idler is rotatably connected to the first support plate via a bearing seat, and the other end is rotatably connected to the second support plate via a bearing seat. The conveyor belt is located above the first idler, and a rubber skirt is provided on the outer side of the conveyor belt. Compared with traditional belt conveyor return idlers, this invention adopts a three-section return idler structure, which not only supports the return belt but also protects the belt and skirt, effectively extending the service life of the belt conveyor.

[0004] In the above-mentioned solutions, when the conveyor belt is in a humid environment such as the rainy season or when the material has high moisture content, material will stick to the return belt. When passing the idler roller, the sticky material cannot pass between the idler roller and the belt. Some of the sticky material will be pushed between the contact surfaces of the idler roller and the belt, while the other part of the material will fall directly below. If the material is not cleaned up in time, it will not only wear down the belt, but also generate compressive force between the idler roller and the belt, which will increase the risk of belt deviation. Therefore, the present invention provides a conveyor belt idler roller assembly. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by the present invention to solve its technical problem is: the conveyor belt idler assembly of the present invention includes two sets of fixed plates fixedly installed on both sides of the belt conveyor, a rotary roller assembly is provided between the two sets of fixed plates, a sleeve for supporting the belt is rotatably fitted on the rotary roller assembly, and two sets of steel bars are spirally wound on the sleeve.

[0007] Because the spiral-shaped steel bars create a gap between the belt and the sleeve, any adhering material on the return belt can pass through this gap, preventing the material from accumulating between the belt and the sleeve. Secondly, since the steel bars are wound from the middle of the sleeve to both sides, during the rotation of the steel bars, the steel bars provide the belt with a spiral rotation force to both sides, thereby balancing the lateral deviation of the belt and making the belt operation more stable.

[0008] Preferably, the rotary joint roller assembly includes two sets of rotary joint sleeves, which are rotatably connected to both ends of a sleeve; a movable column, which is movably installed inside the sleeve; a pressure plate hinged inside the rotary joint sleeve; an insert rod movably inserted into the pressure plate; a T-shaped rod fixedly connected to the upper end of the insert rod; a connecting plate fixedly connected to one end of the rotary joint sleeve; a rotary joint shaft fixedly installed on the connecting plate; the rotary joint shaft rotatably installed on the fixed plate; a drive mechanism is provided on the rotary joint roller assembly; the drive mechanism includes a drive roller, the end of which is rotatably connected to the connecting plate; and two sets of synchronous belts. Between the drive roller and the sleeve, a synchronous belt is used for transmission between the drive roller and the sleeve. A guide groove is provided on the fixed plate, and one end of the T-shaped rod is located in the guide groove. The guide groove is composed of an arc groove and an inclined groove. Bearing rods are provided at both ends of the movable column, and the ends of the bearing rods are attached to the bearing plate. Three sets of fixing blocks are provided on the movable column, and the fixing blocks are fixedly connected to the steel bars. Three sets of rectangular grooves are provided on the sleeve to avoid the fixing blocks. Two sets of spiral sliding grooves are provided at the upper end of the bearing plate. Two sets of convex shafts are provided on the insertion rod. The convex shafts are driven along the spiral sliding grooves to make the bearing plate rotate.

[0009] Because the contact surface between the bearing rod and the bearing plate is inclined, the end of the bearing rod will slide along the inclined contact surface, causing the movable column and the reinforcing steel to slide back and forth axially. The sliding reinforcing steel will scrape off the adhering material on the sleeve, and the sleeve itself will rotate to generate centrifugal force, which will throw off the scraped adhering material, thus cleaning the adhering material on the sleeve.

[0010] Preferably, the screw-on sleeve has a through hole, and the T-shaped rod is movably inserted into the through hole;

[0011] The through hole guides the movement of the T-shaped rod.

[0012] Preferably, the drive mechanism also includes a flap, two sets of shafts, one end of which is rotatably connected to the end of the flap, and the other end of which is fixedly connected to a connecting plate, a rubber scraper fixedly installed on the flap, and two sets of springs symmetrically arranged on both sides of the flap, one end of which is fixedly connected to the flap, and the other end of which is fixedly connected to the connecting plate.

[0013] The rubber scraper is squeezed by the belt, causing the rubber scraper and the flap to rotate downwards and stretch the spring. The spring's rebound force makes the rubber scraper stick tightly to the belt. During belt conveying, the rubber scraper scrapes off the adhering material on the belt, thereby preventing the adhering material from accumulating between the drive roller and the belt.

[0014] Preferably, the drive roller is fixedly fitted with cams for pushing the flip plate at both ends, with the outer ring of the cams in close contact with the flip plate;

[0015] When the outer ring of the reinforcing bar returns to the state of being tightly attached to the belt, the outer ring of the cam is tightly attached to the flap. The conveyor belt drives the reinforcing bar and the sleeve to rotate together. The sleeve causes the drive roller to rotate together with the cam via the synchronous belt. At this time, the protrusion on the cam can push against the flap. Under the action of the cam and the spring, the flap is continuously flipped back and forth, which causes the flap itself to vibrate. The vibration causes the adhering material to detach from the flap, thus cleaning the adhering material on the flap and ensuring the good effect of the rubber scraper in removing the adhering material.

[0016] The beneficial effects of this invention are as follows:

[0017] 1. The spiral-shaped steel bars create a gap between the belt and the sleeve, allowing any adhering material on the return belt to pass through, preventing accumulation between the belt and the sleeve. Furthermore, since the steel bars are wound from the middle of the sleeve outwards, they exert a spiral force on the belt during rotation, thus balancing lateral belt deviation and making the belt run more stably.

[0018] 2. Guided by the inclined groove, the T-shaped rod drives the insert rod to move away from the bearing plate. At the same time, the insert rod drives the convex shaft to slide along the spiral groove. Guided by the spiral groove, the bearing plate rotates and becomes non-perpendicular to the bearing rod until the drive roller is in close contact with the belt. At this time, the conveyor belt drives the drive roller to rotate. The rotating drive roller causes the sleeve, reinforcing bar, and movable column to rotate together through the synchronous belt. At the same time, the two sets of bearing rods rotate together with the movable column. Since the contact surface between the bearing rod and the bearing plate is inclined at this time, the end of the bearing rod will slide along the inclined contact surface, causing the movable column and reinforcing bar to slide back and forth axially. The back-and-forth sliding reinforcing bar scrapes off the adhering material on the sleeve. The rotation of the sleeve itself generates centrifugal force, which throws off the scraped adhering material, thus cleaning the adhering material on the sleeve.

[0019] 3. Before the drive roller contacts the belt, the rubber scraper on the flap plate first contacts the belt. As the drive roller approaches the belt, the rubber scraper is squeezed by the belt, causing the rubber scraper and the flap plate to rotate downwards and stretch the spring. The spring's rebound force makes the rubber scraper stick tightly to the belt. During the belt conveying process, the rubber scraper scrapes off the adhering material on the belt, thereby preventing the adhering material from accumulating between the drive roller and the belt. Attached Figure Description

[0020] The invention will now be further described with reference to the accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the structure of the present invention.

[0022] Figure 2This is a schematic diagram of the fixed plate, rotary roller assembly, sleeve, and steel bar assembly of the present invention.

[0023] Figure 3 This is a schematic diagram of the assembly of the fixing plate, the rotary roller assembly (section view), the sleeve (section view), the reinforcing bar (section view), and the drive mechanism of the present invention.

[0024] Figure 4 This is a schematic diagram of the combination of the pressure plate, insert rod, and T-shaped rod of the present invention.

[0025] Figure 5 This is a schematic diagram of another state of the combination of the movable column and the pressure plate of the present invention.

[0026] Figure 6 This is a schematic diagram of the combination of sleeve, reinforcing bar, and movable column of the present invention.

[0027] Figure 7 This is a schematic diagram of the combination of sleeve, reinforcing bar, swivel sleeve, connecting plate and drive mechanism of the present invention.

[0028] Figure 8 for Figure 7 Enlarged view of point A in the middle.

[0029] In the diagram: 1. Fixed plate; 101. Guide groove; 1011. Arc groove; 1012. Inclined groove; 2. Rotary roller assembly; 3. Sleeve; 301. Rectangular groove; 4. Reinforcing bar; 5. Drive mechanism; 6. Belt; 201. Rotary sleeve; 2011. Through hole; 202. Movable column; 2021. Pressure rod; 2022. Fixed block; 203. Pressure plate; 2031. Spiral groove; 204. Insert rod; 2041. Convex shaft; 205. T-shaped rod; 206. Connecting plate; 207. Rotary shaft; 501. Drive roller; 502. Synchronous belt; 503. Flip plate; 504. Rubber scraper; 505. Shaft 1; 506. Spring; 507. Cam. Detailed Implementation

[0030] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0031] Example 1

[0032] like Figure 1 and Figure 2 As shown in the embodiment of the present invention, a conveyor belt idler assembly includes two sets of fixing plates 1 fixedly installed on both sides of the belt 6, a rotary roller assembly 2 is provided between the two sets of fixing plates 1, a sleeve 3 for supporting the belt 6 is rotatably fitted on the rotary roller assembly 2, and two sets of steel bars 4 are spirally wound on the sleeve 3.

[0033] Specifically, attached Figure 1The middle arrow indicates the direction of belt 6. In the initial state, the outer ring of the spiral-shaped steel bar 4 is tightly attached to belt 6. During the conveying process of belt 6, belt 6 drives steel bar 4 and sleeve 3 to rotate together. Compared with the prior art, because the spiral-shaped steel bar 4 creates a gap between belt 6 and sleeve 3, the adhering material on the return belt 6 can pass through this gap, avoiding the accumulation of adhering material between belt 6 and sleeve 3. Secondly, because steel bar 4 is wound from the middle of sleeve 3 to both sides, during the rotation of steel bar 4, steel bar 4 provides belt 6 with a spiral rotation force to both sides, thereby balancing the lateral deviation of belt 6 and making belt 6 run more stably.

[0034] like Figures 3 to 6 As shown, the rotary joint roller assembly 2 includes two sets of rotary joint sleeves 201, which are rotatably connected to both ends of the sleeve 3; a movable column 202, which is movably installed inside the sleeve 3; a pressure plate 203 hinged inside the rotary joint sleeve 201; an insert rod 204 movably inserted into the pressure plate 203; a T-shaped rod 205 fixedly connected to the upper end of the insert rod 204; a connecting plate 206 fixedly connected to one end of the rotary joint sleeve 201; a rotary joint shaft 207 fixedly installed on the connecting plate 206; and a rotary joint shaft 207 rotatably installed on the fixed plate 1. The rotary joint roller assembly 2 is provided with a drive mechanism 5, which includes a drive roller 501, the end of which is rotatably connected to the connecting plate 206; and two sets of synchronous belts 502, which surround the drive roller 501 and the sleeve 3. The synchronous belt 502 is used for transmission between the drive roller 501 and the sleeve 3. The fixed plate 1 is provided with a guide groove 101. One end of the T-shaped rod 205 is located in the guide groove 101. The guide groove 101 is composed of an arc groove 1011 and an inclined groove 1012. The movable column 202 is provided with a pressure rod 2021 at both ends. The end of the pressure rod 2021 is attached to the pressure plate 203. The movable column 202 is provided with three sets of fixing blocks 2022. The fixing blocks 2022 are fixedly connected to the steel bars 4. The sleeve 3 is provided with three sets of rectangular grooves 301 for avoiding the fixing blocks 2022. The upper end of the pressure plate 203 is provided with two sets of spiral sliding grooves 2031. The insertion rod 204 is provided with two sets of convex shafts 2041. The convex shafts 2041 are driven along the spiral sliding grooves 2031 to make the pressure plate 203 rotate.

[0035] Specifically, the spiral-shaped steel bar 4 and sleeve 3 are combined to form a shaft with spiral grooves. As the adhering material continuously passes between the belt 6 and the sleeve 3, some of the adhering material will adhere to the outer ring of the sleeve 3 and be located within the spiral groove. If not cleaned over a long period of use, the spiral groove will be filled with the adhering material, leaving no gap between the shaft formed by the steel bar 4 and the sleeve 3 and the belt 6. This prevents the adhering material on the return belt 6 from passing between the shaft and the belt 6. Therefore, in the initial state, the connection between the pressure rod 2021 and the pressure plate 203 is... The contact surface is perpendicular to the bearing rod 2021. After the belt 6 finishes conveying material, a set of motors drives a set of rotating shafts 207 to rotate. The rotating shafts 207 drive the entire rotating roller assembly 2, sleeve 3, reinforcing bar 4, drive roller 501, and synchronous belt 502 to rotate together, causing the reinforcing bar 4 to begin to detach from the belt 6. The drive roller 501 moves towards the belt 6. During this process, one end of the T-shaped rod 205 on the rotating roller assembly 2 first slides along the arc groove 1011. The other end of the T-shaped rod 205 slides along the arc groove 1011 into the inclined direction. During the process within the groove 1012, guided by the inclined groove 1012, the T-shaped rod 205 drives the insertion rod 204 to move away from the pressure plate 203. Simultaneously, the insertion rod 204 drives the convex shaft 2041 to slide along the spiral groove 2031. Guided by the spiral groove 2031, the pressure plate 203 rotates, and the pressure plate 203 will no longer be perpendicular to the pressure rod 2021 until the drive roller 501 is in close contact with the belt 6. At this time, the conveying belt 6 drives the drive roller 501 to rotate. The rotating drive roller 501 drives the sleeve 3 through the synchronous belt 502. The reinforcing bar 4 and the movable column 202 rotate together, and at the same time, the two sets of bearing rods 2021 rotate together with the movable column 202. Since the contact surface between the bearing rod 2021 and the bearing plate 203 is inclined at this time, the end of the bearing rod 2021 will slide along the inclined contact surface, causing the movable column 202 and the reinforcing bar 4 to slide back and forth in the axial direction. The back and forth sliding reinforcing bar 4 scrapes off the adhering material attached to the sleeve 3, and the sleeve 3 itself rotates to generate centrifugal force, which throws off the scraped adhering material, thus cleaning the adhering material on the sleeve 3.

[0036] Furthermore, the screw-on sleeve 201 has a through hole 2011, and the T-shaped rod 205 is movably inserted into the through hole 2011.

[0037] Specifically, when the T-shaped rod 205 drives the insertion rod 204 to move away from the pressure plate 203, the T-shaped rod 205 will slide along the through hole 2011, and the through hole 2011 plays a guiding role in the movement of the T-shaped rod 205.

[0038] Example 2

[0039] like Figure 7 and Figure 8As shown in the comparative embodiment one, another embodiment of the present invention is as follows: the driving mechanism 5 further includes a flap 503, two sets of shafts 505, one end of shaft 505 is rotatably connected to the end of flap 503, the other end of shaft 505 is fixedly connected to a connecting plate 206, a rubber scraper 504 is fixedly installed on flap 503, and two sets of springs 506 are symmetrically arranged on both sides of flap 503, one end of spring 506 is fixedly connected to flap 503, and the other end of spring 506 is fixedly connected to connecting plate 206.

[0040] Specifically, during the cleaning process of the adhesive on the sleeve 3, the conveyor belt 6 drives the drive roller 501 to rotate. At the same time, the adhesive on the belt 6 will accumulate between the drive roller 501 and the belt 6, which will also bring the risk of belt 6 running off-track. Therefore, before the drive roller 501 contacts the belt 6, the rubber scraper 504 on the flap 503 first contacts the belt 6. As the drive roller 501 approaches the belt 6, the rubber scraper 504 is squeezed by the belt 6, causing the rubber scraper 504 and the flap 503 to rotate downwards and stretch the spring 506. The rebound force of the spring 506 makes the rubber scraper 504 stick tightly to the belt 6. During the conveying process of the belt 6, the adhesive on the belt 6 is scraped off by the rubber scraper 504, thereby preventing the adhesive from accumulating between the drive roller 501 and the belt 6.

[0041] Furthermore, the drive roller 501 has cams 507 fixedly fitted at both ends for pushing the flip plate 503, with the outer ring of the cams 507 closely attached to the flip plate 503.

[0042] Specifically, during the process of the rubber scraper 504 scraping off the adhering material on the belt 6, the adhering material flows downward along the flap 503. However, some of the adhering material will remain on the flap 503. If the adhering material is not cleaned in time, it will dry and harden. The hardened adhering material will affect the flexibility of the rubber scraper 504, thus affecting the effectiveness of the rubber scraper 504 in scraping off the adhering material on the belt 6. Therefore, as the rubber scraper 504 rotates downward together with the flap 503, the flap 503 will disengage from the outer ring of the cam 507. When the belt 6 drives the drive roller 501 to rotate, the cam 507 will rotate with the drive roller 501. At this time, the protrusions on the cam 507... The part cannot push the flap 503. When the outer ring of the steel bar 4 returns to the state of being close to the belt 6, the outer ring of the cam 507 is close to the flap 503. The conveying belt 6 drives the steel bar 4 and the sleeve 3 to rotate together. The sleeve 3 causes the drive roller 501 to rotate together with the cam 507 through the synchronous belt 502. At this time, the protrusion on the cam 507 can push the flap 503. Under the action of the cam 507 and the spring 506, the flap 503 is continuously flipped back and forth, so that the flap 503 itself vibrates. The vibration causes the adhering material to be removed from the flap 503, thus cleaning the adhering material on the flap 503 and ensuring the good effect of the rubber scraper 504 in removing the adhering material.

[0043] Working principle: During the conveying process of belt 6, belt 6 drives the steel bar 4 and sleeve 3 to rotate together. The adhering material on the return belt 6 can pass through the gap between belt 6 and sleeve 3. During the rotation of steel bar 4, steel bar 4 gives belt 6 a spiral rotation force to both sides, balancing the lateral deviation of belt 6.

[0044] After belt 6 finishes conveying materials, a set of motors drives a set of rotary joint shafts 207 to rotate. Rotary joint shafts 207 drive the entire rotary joint roller assembly 2, sleeve 3, reinforcing bar 4, drive roller 501, and synchronous belt 502 to rotate together, causing the reinforcing bar 4 to begin to disengage from belt 6. Drive roller 501 moves towards belt 6. During this process, one end of the T-shaped rod 205 on the rotary joint roller assembly 2 first slides along the arc groove 1011. As one end of the T-shaped rod 205 slides into the inclined groove 1012, guided by the inclined groove 1012, the T-shaped rod 205 drives the insertion rod 204 to move away from the pressure plate 203. Simultaneously, the insertion rod 204 drives the convex shaft 2041 to slide along the spiral groove 2031. Under guidance, the pressure plate 203 rotates, and the pressure plate 203 will not be perpendicular to the pressure rod 2021 until the drive roller 501 is close to the belt 6. At this time, the conveying belt 6 drives the drive roller 501 to rotate. The rotating drive roller 501 causes the sleeve 3, the steel bar 4, and the movable column 202 to rotate together through the synchronous belt 502. At the same time, the two sets of pressure rods 2021 rotate together with the movable column 202. Since the contact surface between the pressure rod 2021 and the pressure plate 203 is inclined at this time, the end of the pressure rod 2021 will slide along the inclined contact surface, causing the movable column 202 and the steel bar 4 to slide back and forth in the axial direction. The back and forth sliding steel bar 4 scrapes off the adhering material attached to the sleeve 3, and the sleeve 3 itself rotates to generate centrifugal force, which throws off the scraped adhering material.

[0045] Before the drive roller 501 contacts the belt 6, the rubber scraper 504 on the flap 503 first contacts the belt 6. As the drive roller 501 approaches the belt 6, the rubber scraper 504 is squeezed by the belt 6, causing the rubber scraper 504 and the flap 503 to rotate downwards and stretch the spring 506. The rebound force of the spring 506 makes the rubber scraper 504 stick tightly to the belt 6. During the conveying process of the belt 6, the rubber scraper 504 scrapes off the adhering substances on the belt 6.

[0046] When the outer ring of the reinforcing bar 4 returns to the state of being tightly attached to the belt 6, the outer ring of the cam 507 is tightly attached to the flap 503. The conveying belt 6 drives the reinforcing bar 4 and the sleeve 3 to rotate together. The sleeve 3 causes the drive roller 501 to rotate together with the cam 507 through the synchronous belt 502. At this time, the protrusion on the cam 507 can push against the flap 503. Under the action of the cam 507 and the spring 506, the flap 503 is continuously flipped back and forth, thereby causing the flap 503 to vibrate. The vibration causes the adhering material to detach from the flap 503.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A conveyor belt idler assembly, comprising two sets of fixing plates (1) fixedly installed on both sides of the conveyor belt (6), characterized in that: A rotary roller assembly (2) is provided between the two sets of fixed plates (1). A sleeve (3) for supporting the belt (6) is rotatably mounted on the rotary roller assembly (2). Two sets of steel bars (4) are spirally wound on the sleeve (3). The rotary roller assembly (2) includes: Two sets of screw-on sleeves (201) are rotatably connected to both ends of the sleeve (3); Movable column (202), which is movably installed inside sleeve (3); A pressure plate (203) is hinged within the screw sleeve (201); The insert rod (204) is movably inserted into the bearing plate (203); The T-shaped rod (205) is fixedly connected to the upper end of the insertion rod (204); A connecting plate (206) is fixedly connected to one end of the screw sleeve (201); A rotating shaft (207) is fixedly installed on the connecting plate (206), and the rotating shaft (207) is rotatably installed on the fixed plate (1); The rotary roller assembly (2) is provided with a drive mechanism (5), the drive mechanism (5) comprising: A drive roller (501) is rotatably connected to a connecting plate (206) at its end. Two sets of synchronous belts (502) surround the drive roller (501) and the sleeve (3), and the synchronous belts (502) are used for transmission between the drive roller (501) and the sleeve (3); The fixing plate (1) is provided with a guide groove (101), and one end of the T-shaped rod (205) is located in the guide groove (101). The guide groove (101) is composed of an arc groove (1011) and an oblique groove (1012). The movable column (202) is provided with pressure rods (2021) at both ends, and the ends of the pressure rods (2021) are attached to the pressure plate (203). The movable column (202) is provided with three sets of fixing blocks (2022), and the fixing blocks (2022) are fixedly connected to the reinforcing bars (4). The sleeve (3) is provided with three sets of rectangular grooves (301) for avoiding the fixing blocks (2022). The upper end of the pressure plate (203) is provided with two sets of spiral grooves (2031), and the insert rod (204) is provided with two sets of convex shafts (2041). The convex shafts (2041) are driven along the spiral grooves (2031) to make the pressure plate (203) rotate.

2. The conveyor belt idler assembly according to claim 1, characterized in that: The screw sleeve (201) has a through hole (2011), and the T-shaped rod (205) is movably inserted into the through hole (2011).

3. The conveyor belt idler assembly according to claim 2, characterized in that: The drive mechanism (5) further includes: Flip-top (503); Two sets of shafts (505), one end of which is rotatably connected to the end of the flap (503), and the other end of which is fixedly connected to the connecting plate (206). A rubber scraper (504) is fixedly installed on the flap (503); Two sets of springs (506) are symmetrically arranged on both sides of the flap (503).

4. A conveyor belt idler assembly according to claim 3, characterized in that: One end of the spring (506) is fixedly connected to the flap (503), and the other end of the spring (506) is fixedly connected to the connecting plate (206).

5. A conveyor belt idler assembly according to claim 4, characterized in that: The drive roller (501) has cams (507) fixedly fitted at both ends for pushing the flip plate (503), and the outer ring of the cam (507) is in close contact with the flip plate (503).

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