Low-noise conveying belt

Abstract

The invention discloses a low-noise conveying belt, and relates to the technical field of conveying belt equipment, the low-noise conveying belt is characterized in that a conveying belt body is sleeved outside a driving roller and a tensioning roller, one side of a stowage box is connected with a sliding sleeve, the inner wall of a first sliding seat is in sliding connection with the outer surface of the sliding sleeve, the inner wall of the sliding sleeve is in threaded connection with a first screw rod, and the first screw rod is in threaded connection with a second screw rod; according to the conveying belt, through cooperation of the stowage box, the supporting wheels, the sealing belt, the sliding sleeve, the first sliding base and the first lead screw, materials, dust and impurities cannot fall off from a gap between the rack and the conveying belt body, the conveying belt is not prone to falling off, and the conveying belt is convenient to use. The contact of dust, impurities or other materials with the bearing, the driving roller, the supporting roller and the tensioning roller is reduced, the noise generated during operation of the bearing, the driving roller, the supporting roller and the tensioning roller is reduced, and the smoothness of the conveying belt body during operation is improved.

Description

Technical Field

[0001] The invention relates to the technical field of conveyor belt equipment, in particular to a low-noise conveyor belt. Background Art

[0002] Conveyor belts are mainly used to continuously transport materials to achieve long-distance and large-scale transportation of materials. They are widely used in industries such as mining, freight, express delivery and industrial production. They can transport a large amount of materials from the beginning to the end. They have high conveying efficiency and can transport a large amount of materials in a short time, thereby improving production efficiency. For example, in cargo loading and unloading at ports and docks, conveyor belts can quickly transport goods from ship to shore or from warehouse to transport vehicle. Conveyor belts have strong versatility and can transport materials of various properties, shapes and sizes, including block, powder, granular, paste and other materials. For example, in the grain processing industry, they can transport wheat, rice and other grains; in the chemical industry, they can transport various chemical raw materials and products; in the construction industry, they can transport sand, gravel, cement and other building materials; in some automated production lines, conveyor belts can transmit power to various working parts to make them work together, greatly improving the efficiency of material production operations.

[0003] When the conveyor belt is running, it is supported by the active roller, support roller and tension roller to keep the normal operation of the conveyor belt. When the conveyor belt is transporting materials, dust or impurities adhering to the materials, including the materials themselves, may seep from the gap between the conveyor belt and the bracket to the bottom. Dust and impurities may enter the bearings used to support the rotation of the active roller, support roller and tension roller, resulting in increased friction in the bearing operation, causing the bearing to make noise. At the same time, the fallen materials may be entangled on the outside of the active roller, support roller and tension roller, causing further friction between the materials and the conveyor belt, further increasing the noise generation. For this reason, we propose a low-noise conveyor belt. Summary of the invention

[0004] The object of the present invention is to provide a low-noise conveyor belt to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a low-noise conveyor belt, comprising: a conveyor belt body and a frame; further comprising: an active roller, a tensioning roller and a supporting roller for supporting the conveyor belt body, the active roller being rotatably connected to one end of the frame, the tensioning roller being arranged at the other end of the frame, a first tensioning mechanism being arranged on the outside of the tensioning roller, the conveyor belt body being sleeved on the outside of the active roller and the tensioning roller, and the tensioning roller and the active roller being transmission-connected through the conveyor belt body, a loading box being arranged above the conveyor belt body, and a sliding mechanism being connected on one side of the loading box The upper surface of the frame is connected with a first slide seat, the inner wall of the first slide seat is slidably connected to the outer surface of the slide sleeve, the inner wall of the slide sleeve is threadedly connected with a first screw rod, the inner wall of the loading box is rotatably connected to a plurality of supporting wheels, and the plurality of supporting wheels are arranged at equal distances, the outer side of the supporting wheel is sleeved with a sealing belt, the outer surface of the sealing belt is in contact with the outer surface of the conveyor belt body, a second tensioning mechanism is arranged above the sealing belt, one side of the loading box is connected with a wheel frame, the inner wall of the wheel frame is rotatably connected to a plurality of guide rollers, and the plurality of guide rollers are arranged at equal distances.

[0006] Preferably, a motor is installed inside the frame, the output shaft of the motor is connected to pulley 1, the end of the active roller located outside the frame is connected to pulley 2, the outsides of pulley 1 and pulley 2 are sleeved with transmission belts, and pulley 1 and pulley 2 are connected through transmission belt transmission.

[0007] Preferably, a protective cover is installed on the frame at one side of the second pulley, and the protective cover is located outside the first pulley, the second pulley and the transmission belt.

[0008] Preferably, the first tensioning mechanism includes a slider and a slideway, the slideway is opened inside the frame, the slider is slidably connected to the inner wall of the slideway, the end of the tensioning roller is rotatably connected to the inner wall of the slider, one side of the slider is rotatably connected to a second screw rod, the outer surface of the second screw rod is threadedly connected to the inner wall of the frame, and the end of the second screw rod away from the slider is connected to a four-corner head.

[0009] Preferably, the inner wall of the slideway is connected with a positioning guide rail, the inner side of the sliding block is provided with a positioning slot, and the inner wall of the positioning slot is slidably connected with the outer surface of the positioning slide rail.

[0010] Preferably, the outer surface of the first screw rod is threadedly connected to the inner wall of the first slide seat, and one end of the first screw rod located outside the first slide seat is connected to a first hand wheel.

[0011] Preferably, the second tensioning mechanism includes a second slide, the bottom end of the second slide is connected to the upper surface of the loading box, the inner wall of the second slide is slidably connected to a wheel seat, the inner wall of the wheel seat is rotatably connected to a tensioning wheel, and the outer surface of the tensioning wheel is in contact with the outer surface of the sealing belt.

[0012] Preferably, a third lead screw is threadedly connected to the inner wall of the second sliding seat. The third lead screw is threadedly connected to the inner wall of the second sliding seat. One end of the third lead screw located inside the second sliding seat is rotatably connected to the upper surface of the wheel seat, and the end of the third lead screw located outside the second sliding seat is connected to a second hand wheel.

[0013] Preferably, the number of the support rollers is multiple, and the multiple support rollers are arranged at equal intervals. The outer surface of the support roller is in contact with the inner wall of the conveyor belt body.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. Through the cooperation among the loading box, the support wheel, the sealing belt, the sliding sleeve, the first sliding seat and the first lead screw, the first sliding seat provides a supporting force for the sliding sleeve to maintain the stability of the sliding sleeve. The sliding sleeve transmits the supporting force to the loading box to maintain the stability of the loading box. The rotation of the first lead screw generates a driving force to provide power for the up and down movement of the loading box, and adjusts the up and down position of the loading box. While the loading box moves up and down, the support wheel drives the sealing belt to move at the same time. By moving the position of the sealing belt, the contact force between the sealing belt and the conveyor belt body is changed, and the friction between the sealing belt and the conveyor belt body is adjusted, which is convenient for the conveyor belt body to drive the sealing belt to rotate at the same time when rotating. The loading box provides a supporting force for the sealing belt through the support wheel to maintain the stability of the sealing belt during rotation. By forming a barrier at the edge position of the conveyor belt body with the sealing belt, materials, dust and impurities cannot fall from the gap between the frame and the conveyor belt body, reducing the contact between dust, impurities or other materials and the bearings, the driving roller, the support rollers and the tensioning roller, improving the cleanliness of the bearings, the driving roller, the support rollers and the tensioning roller, reducing the noise generated during the operation of the bearings, the driving roller, the support rollers and the tensioning roller, and improving the smoothness of the conveyor belt body during operation.

[0016] 2. Through the cooperation between the wheel frame and the guiding roller, the wheel frame provides a supporting force for the guiding roller to maintain the stability of the guiding roller during rotation. The guiding roller has a rotating function when being pushed. The guiding roller reduces the friction with the materials through rotation. When the conveyor belt body drives the materials to move, some of the materials have irregular shapes and may shake, and the shaking may cause the materials to move out of the conveyor belt body. The guiding roller provides support outside the materials to prevent the materials from falling off the conveyor belt body due to shaking, prevent the materials from being damaged, and maintain the stability of the materials during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2Schematic diagram of the internal structure of the frame sectioned according to the present invention;

[0019] Figure 3 Schematic diagram of the structure of the motor and the transmission belt according to the present invention;

[0020] Figure 4 According to the present invention Figure 3 Schematic diagram of the enlarged partial structure at location A;

[0021] Figure 5 Schematic diagram of the overall structure of the slider according to the present invention;

[0022] Figure 6 Schematic diagram of the structure of the loading box according to the present invention;

[0023] Figure 7 Schematic diagram of the internal structure of the loading box sectioned according to the present invention;

[0024] Figure 8 Schematic diagram of the internal structure of the second sliding seat sectioned according to the present invention;

[0025] Figure 9 Schematic diagram of the structure of the guide roller according to the present invention.

[0026] In the figure: 1, conveyor belt body; 2, frame; 3, driving roller; 4, tensioning roller; 5, supporting roller; 6, first tensioning mechanism; 601, slider; 602, slideway; 603, second lead screw; 604, square head; 605, positioning guide rail; 606, positioning chute; 7, loading box; 8, sliding sleeve; 9, first sliding seat; 10, first lead screw; 11, supporting wheel; 12, sealing belt; 13, second tensioning mechanism; 1301, second sliding seat; 1302, wheel seat; 1303, tensioning wheel; 1304, third lead screw; 1305, second handwheel; 14, wheel frame; 15, guide roller; 16, motor; 17, pulley one; 18, pulley two; 19, transmission belt; 20, protective cover; 21, first handwheel. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Embodiment 1

[0029] Please refer to Figures 1-9A low-noise conveyor belt shown in the figure includes: a conveyor belt body 1 and a frame 2; it also includes: an active roller 3, a tensioning roller 4 and a supporting roller 5 for supporting the conveyor belt body 1, the active roller 3 is rotatably connected to one end of the frame 2, the tensioning roller 4 is arranged at the other end of the frame 2, the conveyor belt body 1 is sleeved on the outside of the active roller 3 and the tensioning roller 4, and the tensioning roller 4 is connected to the active roller 3 through the conveyor belt body 1, the conveyor belt body 1 is made of rubber material, the conveyor belt body 1 is supported by the active roller 3 and the tensioning roller 4, the active roller 3 provides rotational power for the conveyor belt body 1, and the tensioning roller 4 maintains the tension of the conveyor belt body 1.

[0030] A loading box 7 is arranged above the conveyor belt body 1. There are two loading boxes 7, sealing belts 12, supporting wheels 11 and other components in total, and the two loading boxes 7 are respectively located on both sides of the conveyor belt body 1. A sliding sleeve 8 is connected to one side of the loading box 7. A first sliding seat 9 is connected to the upper surface of the frame 2. There are two sliding sleeves 8 and first sliding seats 9 corresponding to each loading box 7. The loading box 7 receives the supporting force of the first sliding seat 9 through the sliding sleeve 8 to maintain the stability of the loading box 7. The inner wall of the first sliding seat 9 is slidably connected to the outer surface of the sliding sleeve 8. The inner wall of the sliding sleeve 8 is threadedly connected with a first screw rod 10. The sliding sleeve 8 is pushed to move its position by rotating the first screw rod 10. The inner wall of the loading box 7 is rotatably connected with a plurality of supporting wheels 11, and the plurality of supporting wheels 11 are arranged at equal distances. The outer side of the supporting wheel 11 is sleeved with a sealing belt 12, which is sealed. The outer surface of the sealing belt 12 is in contact with the outer surface of the conveyor belt body 1. The sealing belt 12 is made of rubber material. The rubber material has the characteristics of heat resistance, high temperature resistance, burning resistance, acid and alkali resistance, cold resistance, wear resistance, oil resistance, flame retardancy, tear resistance and puncture resistance. When the sliding sleeve 8 moves, it drives the support wheel 11 to move through the loading box 7. When the support wheel 11 moves, it drives the sealing belt 12 to move at the same time. By changing the position of the sealing belt 12, the contact strength between the sealing belt 12 and the conveyor belt body 1 is adjusted. The outer surface of the first screw rod 10 is threadedly connected to the inner wall of the first slide seat 9. The first screw rod 10 is connected to the first hand wheel 21 at one end outside the first slide seat 9. The first screw rod 10 increases the contact area with the hand through the first hand wheel 21, which facilitates the hand to drive the first screw rod 10 to rotate.

[0031] A wheel frame 14 is connected to one side of the loading box 7, and a plurality of guide rollers 15 are rotatably connected to the inner wall of the wheel frame 14, and the plurality of guide rollers 15 are arranged at equal distances. The wheel frame 14 provides support for the guide rollers 15 to maintain the stability of the guide rollers 15, and the guide rollers 15 provide support for the materials to prevent them from shaking and falling from the conveyor belt body 1. Some materials have an irregular shape in appearance, and may shake when the conveyor belt body 1 transports the materials. The guide rollers 15 support the materials to prevent them from being damaged, and at the same time confine the materials to the inside of the conveyor belt body 1.

[0032] A motor 16 is installed inside the frame 2. The output shaft of the motor 16 is connected with a first pulley 17. One end of the driving roller 3 located outside the frame 2 is connected with a second pulley 18. A transmission belt 19 is sleeved outside the first pulley 17 and the second pulley 18. The first pulley 17 and the second pulley 18 are in transmission connection through the transmission belt 19. Using the motor 16 as a power source, power is provided for the operation of the conveyor belt body 1. After the motor 16 rotates, it drives the first pulley 17 to rotate simultaneously. The driving roller 3 receives the power of the motor 16 through the second pulley 18. The first pulley 17 transmits the power to the second pulley 18 through the transmission belt 19, thereby driving the driving roller 3 to rotate. After the driving roller 3 rotates, through the friction with the conveyor belt body 1, the conveyor belt body 1 is driven to rotate. After the conveyor belt body 1 rotates, the materials are conveyed and their positions are moved.

[0033] A protective cover 20 is installed on one side of the frame 2 where the second pulley 18 is located. The protective cover 20 is located outside the first pulley 17, the second pulley 18 and the transmission belt 19. The first pulley 17, the second pulley 18 and the transmission belt 19 are wrapped inside by the protective cover 20, preventing external objects or staff from contacting the first pulley 17, the second pulley 18 and the transmission belt 19, improving the stability of the first pulley 17, the second pulley 18 and the transmission belt 19 during operation, and improving the safety of the staff.

[0034] An external first tensioning mechanism 6 is provided for the tensioning roller 4. The tensioning force of the conveyor belt body 1 is adjusted through the first tensioning mechanism 6 to maintain the stable operation of the conveyor belt body 1. The first tensioning mechanism 6 includes a slider 601 and a slideway 602. The slideway 602 is opened inside the frame 2. The slider 601 is slidably connected to the inner wall of the slideway 602. The end of the tensioning roller 4 is rotatably connected to the inner wall of the slider 601. A second lead screw 603 is rotatably connected to one side of the slider 601. The outer surface of the second lead screw 603 is threadedly connected to the inner wall of the frame 2. One end of the second lead screw 603 away from the slider 601 is connected with a square head 604. The slider 601 provides support for the tensioning roller 4 to maintain the stability of the tensioning roller 4. The rotation of the second lead screw 603 generates a driving force to provide power for the slider 601 to move. While the slider 601 moves, it drives the tensioning roller 4 to move simultaneously. After the tensioning roller 4 moves, the tensioning force of the conveyor belt body 1 is changed, so as to adjust the tensioning force of the conveyor belt body 1. The second lead screw 603 is convenient to use tools through the square head 604. The square head 604 can be docked with a wrench, and the second lead screw 603 is rotated through the wrench. A positioning guide rail 605 is connected to the inner wall of the slideway 602. A positioning chute 606 is opened inside the slider 601. The inner wall of the positioning chute 606 is slidably connected to the outer surface of the positioning guide rail 605. To maintain the stability of the slider 601, the slider 601 receives the supporting force through the positioning chute 606, and the positioning guide rail 605 provides the supporting force for the positioning chute 606. The positioning guide rail 605 guides and supports the positioning chute 606 to maintain the stability of the slider 601.

[0035] Above the sealing belt 12, a second tensioning mechanism 13 is provided. The tensioning force of the sealing belt 12 is adjusted through the second tensioning mechanism 13 to maintain the stable operation of the conveyor belt body 1. The second tensioning mechanism 13 includes a second sliding seat 1301. The bottom end of the second sliding seat 1301 is connected to the upper surface of the load box 7. A wheel seat 1302 is slidably connected to the inner wall of the second sliding seat 1301. A tensioning wheel 1303 is rotatably connected to the inner wall of the wheel seat 1302. The outer surface of the tensioning wheel 1303 is in contact with the outer surface of the sealing belt 12. The second sliding seat 1301 provides a supporting force for the wheel seat 1302 to maintain the stability of the wheel seat 1302 when moving up and down. The wheel seat 1302 provides support for the tensioning wheel 1303 to maintain the stability of the tensioning wheel 1303. By moving the position of the tensioning wheel 1303 up and down, the contact force between the tensioning wheel 1303 and the sealing belt 12 is changed, so as to adjust the tensioning force of the sealing belt 12. A third lead screw 1304 is threadedly connected to the inner wall of the second sliding seat 1301. The third lead screw 1304 is threadedly connected to the inner wall of the second sliding seat 1301. One end of the third lead screw 1304 located inside the second sliding seat 1301 is rotatably connected to the upper surface of the wheel seat 1302. One end of the third lead screw 1304 located outside the second sliding seat 1301 is connected to a second handwheel 1305. The third lead screw 1304 increases the contact surface with the hand through the second handwheel 1305, which is convenient for the hand to rotate the third lead screw 1304. When the third lead screw 1304 rotates, a driving force is generated to provide power for the wheel seat 1302 to move.

[0036] The number of the supporting rollers 5 is multiple, and the multiple supporting rollers 5 are arranged at equal intervals. The outer surface of the supporting roller 5 is in contact with the inner wall of the conveyor belt body 1. After the goods are placed on the conveyor belt body 1 above, the conveyor belt body 1 bears the load. After the conveyor belt body 1 bears the load, it will sag downward, causing the conveyor belt body 1 to deform. The supporting roller 5 plays a supporting role inside the conveyor belt body 1 to prevent the conveyor belt body 1 from sagging and maintain the stable operation of the conveyor belt body 1.

[0037] In this solution: A low-noise conveyor belt includes the following steps: First, start the motor 16. After the motor 16 starts, it drives the first pulley 17 to rotate. The first belt conveys power to the second pulley 18 through the transmission belt 19. The second pulley 18 drives the driving roller 3 to rotate. After the driving roller 3 rotates, it drives the conveyor belt body 1 to rotate. Subsequently, place the material on the conveyor belt body 1. The conveyor belt body 1 rotates to convey the material. While the conveyor belt body 1 rotates, through the friction force with the sealing belt 12, it drives the sealing belt 12 to rotate together with the conveyor belt body 1. Through the guiding and supporting of the material by the guiding roller 15, the material is restricted inside the conveyor belt body 1 to prevent the material from moving towards the edge position of the conveyor belt body 1. By the contact between the sealing belt 12 and the conveyor belt body 1, the sealing belt 12 forms a barrier at the edge position of the conveyor belt body 1, so that the material, dust, and impurities cannot fall from the gap between the frame 2 and the conveyor belt body 1.

[0038] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device.

[0039] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-noise conveyor belt, comprising: A conveyor belt body (1) and a frame (2); characterized in that it also includes: an active roller (3), a tensioning roller (4) and a supporting roller (5) for supporting the conveyor belt body (1), the active roller (3) being rotatably connected to one end of the frame (2), the tensioning roller (4) being arranged at the other end of the frame (2), a first tensioning mechanism (6) being arranged outside the tensioning roller (4), the conveyor belt body (1) being sleeved on the outside of the active roller (3) and the tensioning roller (4), and the tensioning roller (4) and the active roller (3) being transmission-connected through the conveyor belt body (1), a loading box (7) being arranged above the conveyor belt body (1), a sliding sleeve (8) being connected to one side of the loading box (7), and a first tensioning mechanism (6) being arranged outside the tensioning roller (4) on the upper surface of the frame (2). A first slide seat (9), wherein the inner wall of the first slide seat (9) is slidably connected to the outer surface of the slide sleeve (8), the inner wall of the slide sleeve (8) is threadedly connected to a first screw rod (10), the inner wall of the loading box (7) is rotatably connected to a plurality of support wheels (11), and the plurality of support wheels (11) are arranged at equal distances, the outer portion of the support wheel (11) is sleeved with a sealing belt (12), the outer surface of the sealing belt (12) is in contact with the outer surface of the conveyor belt body (1), and a second tensioning mechanism (13) is arranged above the sealing belt (12), one side of the loading box (7) is connected to a wheel frame (14), the inner wall of the wheel frame (14) is rotatably connected to a plurality of guide rollers (15), and the plurality of guide rollers (15) are arranged at equal distances.

2. The low-noise conveyor belt according to claim 1, characterized in that: A motor (16) is installed inside the frame (2), and the output shaft of the motor (16) is connected to a pulley 1 (17). One end of the active roller (3) located outside the frame (2) is connected to a pulley 2 (18). The outsides of the pulley 1 (17) and the pulley 2 (18) are sleeved with a transmission belt (19), and the pulley 1 (17) and the pulley 2 (18) are connected in transmission via the transmission belt (19).

3. The low-noise conveyor belt according to claim 2 is characterized in that: The frame (2) is provided with a protective cover (20) on one side of the belt pulley (18), and the protective cover (20) is located outside the belt pulley (17), the belt pulley (18) and the transmission belt (19).

4. A low-noise conveyor belt according to claim 1, characterized in that: The first tensioning mechanism (6) comprises a slider (601) and a slideway (602), wherein the slideway (602) is arranged inside the frame (2), the slider (601) is slidably connected to the inner wall of the slideway (602), the end of the tensioning roller (4) is rotatably connected to the inner wall of the slider (601), one side of the slider (601) is rotatably connected to a second screw rod (603), the outer surface of the second screw rod (603) is threadedly connected to the inner wall of the frame (2), and the end of the second screw rod (603) away from the slider (601) is connected to a four-corner head (604).

5. The low-noise conveyor belt according to claim 4, wherein: The inner wall of the slideway (602) is connected to a positioning guide rail (605), the inner side of the slider (601) is provided with a positioning slide groove (606), and the inner wall of the positioning slide groove (606) is slidably connected to the outer surface of the positioning slide rail.

6. A low-noise conveyor belt according to claim 1, wherein: The outer surface of the first lead screw (10) is threadedly connected to the inner wall of the first sliding seat (9), and one end of the first lead screw (10) located outside the first sliding seat (9) is connected to a first hand wheel (21).

7. The low-noise conveyor belt according to claim 6, characterized in that: The second tensioning mechanism (13) includes a second sliding seat (1301), the bottom end of the second sliding seat (1301) is connected to the upper surface of the load box (7), a wheel seat (1302) is slidably connected to the inner wall of the second sliding seat (1301), a tensioning wheel (1303) is rotatably connected to the inner wall of the wheel seat (1302), and the outer surface of the tensioning wheel (1303) is in contact with the outer surface of the sealing belt (12).

8. The low-noise conveyor belt according to claim 7, wherein: A third lead screw (1304) is threadedly connected to the inner wall of the second sliding seat (1301), the third lead screw (1304) is threadedly connected to the inner wall of the second sliding seat (1301), one end of the third lead screw (1304) located inside the second sliding seat (1301) is rotatably connected to the upper surface of the wheel seat (1302), and one end of the third lead screw (1304) located outside the second sliding seat (1301) is connected to a second hand wheel (1305).

9. The low-noise conveyor belt according to claim 1, wherein: The number of the support rollers (5) is multiple, and the multiple support rollers (5) are arranged at equal intervals, and the outer surface of the support roller (5) is in contact with the inner wall of the conveyor belt body (1).

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