Belt conveyor with carrier rollers convenient to replace and using method

Abstract

The invention belongs to the technical field of transportation devices, particularly relates to a belt conveyor with a carrier roller convenient to replace and a use method, and aims to solve the problems of tedious operation and low efficiency during carrier roller replacement in the prior art, according to the following scheme, the belt conveyor with the carrier roller convenient to replace comprises two frame bodies, and main supporting legs are fixed to the bottoms of the two frame bodies; two main carrier rollers are further included, the two main carrier rollers are rotationally arranged between the two frame bodies, an auxiliary carrier roller is arranged between the two main supporting legs, and the auxiliary carrier roller is in transmission connection with the two main carrier rollers through a conveying belt; the two ends of the two main carrier rollers are rotationally connected with mounting plates, the tensioning state of the main carrier rollers and the auxiliary carrier rollers on the conveying belt can be relieved through upward movement of the moving plates, the main carrier rollers can be easily detached from the frame body, operation is easy, the detaching task can be completed without detaching many bolts, and the detaching efficiency is improved. And in the dismounting process, the conveying belt can be supported through cooperation of the first supporting columns and the second supporting columns.

Description

Technical Field

[0001] The present invention relates to the technical field of transport devices, and in particular to a belt conveyor with rollers that are easy to replace and a use method thereof. Background Art

[0002] Rollers and roller supports are key components of belt conveyors, and their main function is to support the weight of the conveyor belt and materials. Generally, rollers are installed on roller supports, and the supports are fixed on the steel structure frame of the belt conveyor perpendicular to the running direction of the conveyor belt, so as to provide stable support and guiding force for the conveyor belt when it is running. When the rollers are in use, they are prone to wear or displacement, and the rollers need to be replaced and maintained. In the prior art, fasteners such as bolt connecting plates are often used to fix the roller supports to the conveyor. Therefore, a large number of bolts need to be removed during disassembly and assembly, which affects efficiency. At the same time, during long-term replacement and maintenance, the bolts and screw holes are prone to thread slippage, which is also easy to affect the subsequent normal use. In view of the above problems, the present invention document proposes a belt conveyor and a method of use that is easy to replace rollers. Summary of the invention

[0003] In view of the above situation, the purpose of the present invention is to provide a belt conveyor and a method of use that are easy to replace rollers, which effectively solves the problem of cumbersome operation and low efficiency when replacing rollers in traditional belt conveyors.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: A belt conveyor for facilitating replacement of rollers, comprising two frames, the bottoms of the two frames are both fixed with main legs; It also includes two main rollers, which are rotatably arranged between the two frames, and a secondary roller is arranged between the two main legs, and the secondary roller is connected to the two main rollers through a conveyor belt transmission; Wherein, both ends of the two main rollers are rotatably connected with mounting plates, two moving grooves are provided on the sides of the two frames close to each other, and the mounting plates are slidably arranged in the corresponding moving grooves, and a threaded hole is provided on the side of the mounting plate away from the main rollers; The two main legs are both slidably connected with lifting nuts, and the sides of the two lifting nuts close to each other are both rotatably connected with the auxiliary roller; Wherein, both ends of the two frames are slidably penetrated by a moving frame, and one end of the moving frame extends into an adjacent moving groove, and two first support columns and a second support column are provided on the side of the two frames close to each other, and the cooperation of the first support column and the second support column is used to support the conveyor belt in a relaxed state; Two sets of disassembly structures are respectively arranged in the two main legs, and are used to drive the two mounting plates on the same side to move toward each other, so as to facilitate the disassembly of the main roller; Four sets of lifting structures are respectively arranged in the two main legs to support the conveyor belt during the disassembly process.

[0005] In a possible design, the disassembly structure includes a rectangular groove arranged in the main leg, a screw rod is longitudinally rotated in the rectangular groove, a lifting nut is slidably arranged in the rectangular groove, the lifting nut is threadedly sleeved on the outer wall of the screw rod, a movable plate is fixed to the bottom of the lifting nut, and the movable plate is slidably arranged on one side of the frame body, two inclined plates are welded on the top of the movable plate, and movable holes are arranged in the two movable grooves located in the same frame body, and inclined grooves are arranged in the two inclined plates, and fastening bolts are slidably matched in the two inclined grooves, one end of the fastening bolt passes through the movable hole and is threadedly connected to the threaded hole, and the movable hole and the inclined groove are connected. The cooperation with the fastening bolts is used to drive the mounting plate to move; the rotation of the screw rod drives the lifting nut and the auxiliary roller to move upward, releasing the tension of the main roller and the auxiliary roller on the conveyor belt. When the lifting nut rises, it simultaneously drives the inclined plate to rise. The inclined plate drives the mounting plate to move toward the middle through the cooperation of the inclined groove, the moving hole and the fastening bolts. The mounting plate drives the adjacent main rollers to move. Then the fastening bolts are loosened to release the fastening connection between the fastening bolts and the mounting plate. At this time, the mounting plate can be moved out of the frame along the trajectory of the moving groove, and the constraint frame can receive the main roller, thereby easily completing the removal of the main roller. Conversely, the installation of the main roller can be conveniently completed.

[0006] In a possible design, the lifting structure includes a groove and a movable groove arranged on one side of the frame body, a rotating shaft is fixed in the groove, a rotating plate is rotatably sleeved on the outer wall of the rotating shaft, the first support column is rotatably arranged on one side of the rotating plate, the outer wall of the rotating shaft is sleeved with a torsion spring fixedly connected to the rotating plate, one end of the torsion spring is fixedly connected to the inner wall of one side of the groove, the rotating plate drives the first support column to rotate for supporting the conveyor belt, an extrusion block is slidably connected in the movable groove, the second support column is rotatably arranged on one side of the extrusion block, and the extrusion block drives the second support column to move downward Used to support the conveyor belt, the inner walls on both sides of the movable groove that are away from each other are fixed with fixed blocks, and cross plates are fixed with both sides of the extrusion block. A plurality of tension springs are fixed to the bottom of the fixed block and the top of the cross plate, which are used to drive the extrusion block and the second support column to reset; when the mounting plate moves, the extrusion block is squeezed downward and the rotating plate is driven to rotate counterclockwise through the protrusion. At this time, the first support column and the second support column extend to the top and bottom of the frame respectively, and the cooperation of the second support column and the first support column can lift the conveyor belt to prevent the conveyor belt from falling from between the two main legs when the main roller is replaced.

[0007] In a possible design, the lifting structure also includes a protrusion fixedly arranged on one side of the bottom of the moving frame, and the protrusion cooperates with the moving frame and the mounting plate, both sides of the top of the extrusion block are provided with inclined surfaces, and the two inclined surfaces cooperate with the moving frame and the mounting plate, one end of the frame is provided with a makeshift groove, and the magnet block is used to store and make way for the moving frame, one end of the moving frame is fixed with a plurality of rubidium magnets located in the moving groove, one side of the mounting plate is fixedly embedded with an iron block, and a magnetic attraction is generated between the rubidium magnet and the iron block, which is used to drive the mounting plate The moving frame squeezes the extrusion block downward and drives the rotating plate to rotate. A magnet block is fixed to the inner wall of the moving frame on one side away from the mounting plate. An iron sheet layer is fixedly embedded on the inner wall of one side of the give way groove. A magnetic attraction force is generated between the magnet block and the iron sheet layer to keep the stability of the moving frame. The mounting plate drives the moving frame to move and brake the extrusion block and the rotating plate. The extrusion block drives the second support column to continue to extend downward. The moving frame ensures that the rotating plate is in a vertical state. Therefore, the moving frame can always ensure that the first support column and the second support column support the conveyor belt.

[0008] In a possible design, a cavity is provided in each of the two main legs, the bottom ends of the two screw rods are rotatably extended into the cavity and are fixed with auxiliary bevel gears, the two main legs are rotatably connected with the same transmission rod, the outer wall fixed sleeve of the transmission rod is provided with two main bevel gears, the two main bevel gears are respectively located in the two cavities, the main bevel gears are meshed with adjacent auxiliary bevel gears, one end of the transmission rod is rotatably passed through one of the main legs and is fixed with a handle; the transmission rod is driven to rotate by the handle, and the transmission rod synchronously drives the screw rod to rotate through the cooperation of the two main bevel gears and the two auxiliary bevel gears, driving the two lifting nuts to rise and fall synchronously, thereby releasing the tension of the conveyor belt caused by the main roller and the auxiliary roller.

[0009] In a possible design, auxiliary legs are fixed on both sides of the bottom of the frame, and a first sliding groove is provided in each of the two auxiliary legs. A sliding block is slidably connected in each of the two first sliding grooves, and one side of the two sliding blocks is respectively fixedly connected to the adjacent inclined plates. The sliding cooperation between the first sliding groove and the sliding block can make the inclined plate rise and fall stably.

[0010] In a possible design, two second slide grooves are provided on the side of the frame away from the conveyor belt, and pins are slidably connected in the two second slide grooves. One end of the two pins are respectively fixedly connected to adjacent inclined plates, and the sliding cooperation between the pins and the second slide grooves can make the inclined plates rise and fall stably.

[0011] In a possible design, two constraint frames are fixed at the bottom of the two frames, and the two constraint frames on the same side are respectively located on both sides of the main support leg. One side of the constraint frame extends into the conveyor belt to support the main roller. When the mounting plate slides out of the movable groove, the mounting plate and the main roller fall down, and the adjacent constraint frames under the two frames can support the main roller.

[0012] In a possible design, two connecting plates are provided between the two frames, and two ends of the two connecting plates are respectively fixedly connected to one side of the two frames close to each other, and screws are threadedly passed through the two connecting plates, and the ends of the two screws close to each other are rotatably connected to the U-shaped frames, and the U-shaped frames are slidably provided between the two frames, and rotating rollers are rotatably connected to the two U-shaped frames, and the outer walls of the rotating rollers are fixed with spiral convex patterns, and the two spiral convex patterns are respectively located on both sides of the two main rollers, and the two spiral convex patterns on the outer walls of the two rotating rollers are in opposite directions; when the conveyor belt is offset, the corresponding screw is rotated as needed to push the spiral convex patterns to contact the conveyor belt on the outer walls of the adjacent main rollers, and the rotating rollers and the main rollers can clamp the conveyor belt, and can drive the rotating rollers to rotate synchronously when the main rollers and the conveyor belt are running, and the spiral convex patterns arranged on the outer walls of the rotating rollers can drive the conveyor belt to offset, thereby adjusting the conveyor belt to the center position.

[0013] In the present application, a method for using a belt conveyor that is convenient for replacing rollers comprises the following steps: S1. When replacing the worn main roller, rotate the transmission rod to drive the screw rod through the bevel gear transmission, so that the lifting nut and the auxiliary roller move up to release the tension on the conveyor belt; S2. When the lifting nut rises, a series of mechanical linkages are used to move the mounting plate toward the middle, driving the adjacent main rollers to move; after loosening the fastening bolts, the mounting plate can be removed from the frame, and the constraint frame receives the main rollers to complete the disassembly; otherwise, it can be easily installed; S3, when the inclined plate drives the mounting plate to move, the first support column and the second support column extend upward and downward of the frame respectively, and jointly hold up the conveyor belt to prevent the conveyor belt from falling when the main roller is replaced; at the same time, the moving frame brakes the relevant components to maintain the support of the conveyor belt; S4. When the conveyor belt deviates, rotate the screw rod to make the spiral convex pattern contact the conveyor belt, and the rotating roller and the main roller clamp the conveyor belt; during operation, the rotating roller rotates synchronously, and the spiral convex pattern on its outer wall drives the conveyor belt to deviate and adjust it to the center position.

[0014] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, a movable plate is fixed to the bottom of the lifting nut, and two inclined plates are welded on the top of the movable plate, and movable holes are provided in the two movable grooves, and inclined grooves are provided in the two inclined plates, and fastening bolts are slidably matched in the two inclined grooves, and one end of the fastening bolt passes through the movable hole and is threadedly connected to the threaded hole; the movable plate drives the inclined plate to rise, and the inclined plate drives the mounting plate to move toward the middle through the cooperation of the inclined groove, the movable hole and the fastening bolt, and the mounting plate drives the adjacent main roller to move, and then the fastening bolt is loosened to release the fastening connection between the fastening bolt and the mounting plate, so that the mounting plate can be moved out of the frame along the trajectory of the movable groove, thereby easily completing the disassembly of the main roller; In the present invention, a rotating plate is provided in the groove through a rotatable sleeve of the transverse plate, the first support column is rotatably arranged on one side of the rotating plate, an extrusion block is slidably connected in the movable groove, and the second support column is rotatably arranged on one side of the extrusion block; when the inclined plate drives the mounting plate to move toward the middle, and when the mounting plate moves, the extrusion block is respectively squeezed downward and the rotating plate is driven to rotate counterclockwise by the protrusion, at this time, the first support column and the second support column extend to the upper and lower sides of the frame respectively, and the cooperation of the second support column and the first support column can lift the conveyor belt to prevent the conveyor belt from falling from between the two main legs when the main roller is replaced; In the present invention, a convex block is fixed on the bottom of one side of the moving frame, and inclined surfaces are provided on both sides of the top of the extrusion block. A plurality of rubidium magnets located in the moving groove are fixed on one end of the moving frame, and an iron block is fixedly embedded on one side of the mounting plate, and magnetic attraction is generated between the rubidium magnet and the iron block; the mounting plate drives the moving frame to move so as to brake the extrusion block and the rotating plate, and the extrusion block drives the second support column to extend continuously downward, and the moving frame ensures that the rotating plate is in a vertical state, so the moving frame can always ensure that the first support column and the second support column support the conveyor belt; In the present invention, the connection plates are all threaded with screw rods, and the ends of the two screw rods close to each other are rotatably connected to a U-shaped frame, and a rotating roller is rotatably connected to the U-shaped frame, and the outer wall of the rotating roller is fixed with a spiral convex pattern, and the two spiral convex patterns on the outer walls of the two rotating rollers are in opposite directions; when the conveyor belt deviates, the U-shaped frame is driven to move and contact the conveyor belt by rotating the screw rod, and the rotating roller can be driven to rotate synchronously when the main roller and the conveyor belt are running, and the spiral convex patterns on the outer wall of the rotating roller can drive the conveyor belt to deviate, so that the conveyor belt can be adjusted to the center position; In the present invention, by moving the movable plate upward, not only can the tension of the main roller and the auxiliary roller on the conveyor belt be released, but the main roller can also be easily removed from the frame body. The operation is simple, and the disassembly task can be completed without removing a large number of bolts. In the process of disassembly, the conveyor belt can be supported by the cooperation of the first support column and the second support column, so that the conveyor belt can be prevented from falling from between the two main legs when the main roller is replaced. It is also convenient for the main roller to be reinstalled between the two frames to lift the conveyor belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the three-dimensional structure of a belt conveyor for facilitating replacement of rollers provided in Example 1 of the present invention; Figure 2 A schematic diagram of a three-dimensional exploded structure of a belt conveyor for facilitating replacement of rollers provided in Example 1 of the present invention; Figure 3 A schematic diagram of a three-dimensional structure of a belt conveyor in a front view and a cross section for facilitating replacement of rollers provided in Example 1 of the present invention; Figure 4 A schematic diagram of a three-dimensional exploded structure of a mounting plate, a main roller and fastening bolts of a belt conveyor for facilitating replacement of rollers provided in Example 1 of the present invention; Figure 5 A schematic three-dimensional cross-sectional structure diagram of a main leg of a belt conveyor that is convenient for replacing rollers provided in Example 1 of the present invention; Figure 6 for Figure 5 The enlarged structural diagram at A in the middle; Figure 7 A schematic diagram of the three-dimensional structure of a frame, main legs, auxiliary legs and a restraining frame of a belt conveyor that is convenient for replacing rollers provided in Example 1 of the present invention; Figure 8 A schematic diagram of a partial three-dimensional exploded structure of a frame, a rotating plate, a moving frame and an extrusion block of a belt conveyor for facilitating replacement of rollers provided in Example 1 of the present invention; Fig. 9 A schematic diagram of the three-dimensional structure of an extrusion block and a second support column of a belt conveyor for facilitating replacement of rollers provided in Example 1 of the present invention; Fig.10 A schematic diagram of a three-dimensional exploded structure of a frame, an inclined plate, a movable plate and a pin column of a belt conveyor for facilitating replacement of rollers provided in Example 1 of the present invention; Fig.11 A schematic diagram of a top view of a belt conveyor for facilitating replacement of rollers provided in Example 2 of the present invention; Fig.12 A schematic diagram of a three-dimensional exploded structure of a rotating roller, a U-shaped frame and a connecting plate of a belt conveyor that is convenient for replacing rollers provided in Example 2 of the present invention.

[0016] In the figure: 1, frame; 2, main support leg; 3, main roller; 4, auxiliary roller; 5, conveyor belt; 6, auxiliary support leg; 7, moving groove; 8, mounting plate; 9, moving hole; 10, fastening bolt; 11, threaded hole; 12, rectangular groove; 13, lifting nut; 14, screw rod; 15, cavity; 16, auxiliary bevel gear; 17, transmission rod; 18, main bevel gear; 19, moving plate; 20, inclined plate; 21, inclined groove; 22, sliding block; 23, first slide groove; 24, pin ; 25. Second slide groove; 26. Groove; 27. Rotating shaft; 28. Rotating plate; 29. ​​Torsion spring; 30. First support column; 31. Bump; 32. Movable groove; 33. Extrusion block; 34. Second support column; 35. Fixed block; 36. Tension spring; 37. Cross plate; 38. Moving frame; 39. Newton magnet; 40. Magnet block; 41. Give way groove; 42. Constraint frame; 43. Connecting plate; 44. U-shaped frame; 45. Rotating roller; 46. Spiral convex pattern; 47. Screw. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0018] Example 1: Reference Figure 1-Figure 10 A conveyor is used in the field of coal mining equipment. The belt conveyor mainly includes two frames 1, and the bottom of the two frames 1 is fixed with a main support leg 2. Two main rollers 3 are arranged between the two frames 1, and the two main rollers 3 are both rotatable. An auxiliary roller 4 is arranged between the two main legs 2, and the auxiliary roller 4 is connected to the two main rollers 3 through a conveyor belt 5, so that the conveyor belt 5 can run on the main rollers 3 and the auxiliary rollers 4. Both ends of each main roller 3 are rotatably connected with a mounting plate 8, and the side of the two frames 1 close to each other is provided with two movable grooves 7, and the mounting plate 8 is slidably set in these movable grooves 7. The side of the mounting plate 8 away from the main roller 3 is also provided with a threaded hole 11 for subsequent connection. In the two main legs 2, a lifting nut 13 is slidably connected, and the side of the two lifting nuts 13 close to each other is rotatably connected with the auxiliary roller 4.

[0019] Reference Figure 7 Both ends of the frame 1 are slidably penetrated by a moving frame 38, and one end of the moving frame 38 extends into the adjacent moving groove 7. Two first support columns 30 and second support columns 34 are provided on the side where the two frames 1 are close to each other, and the cooperation of the two is used to support the conveyor belt 5 in a relaxed state.

[0020] Reference Figure 2 and Fig.10In order to facilitate the disassembly of the main roller 3, two groups of disassembly structures are also provided. The two groups of disassembly structures are respectively arranged in the two main legs 2 and are used to drive the two mounting plates 8 located on the same side to move toward each other.

[0021] Reference Figure 7-Figure 9 At the same time, in order to support the conveyor belt 5 during the disassembly process, four groups of lifting structures are provided, and the four groups of lifting structures are also provided in the two main legs 2 respectively.

[0022] Reference Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Fig.10 The disassembly structure includes a rectangular groove 12 set in the main leg 2, and a screw rod 14 is longitudinally rotated in the rectangular groove 12. The lifting nut 13 is slidably set in the rectangular groove 12, and is threadedly sleeved on the outer wall of the screw rod 14. A moving plate 19 is fixed to the bottom of the lifting nut 13, and the moving plate 19 is slidably set on one side of the frame body 1. Two inclined plates 20 are welded to the top of the moving plate 19, and moving holes 9 are provided in the two moving grooves 7 located in the same frame body 1. An inclined groove 21 is provided in the two inclined plates 20, and a fastening bolt 10 is slidably fitted in the inclined groove 21. One end of the fastening bolt 10 passes through the moving hole 9 and is threadedly connected to the threaded hole 11. In this way, the mounting plate 8 can be driven to move through the cooperation of the moving hole 9, the inclined groove 21 and the fastening bolt 10.

[0023] Specifically, when the worn main roller 3 needs to be replaced, the transmission rod 17 is first rotated, and the screw rod 14 is driven to rotate through the cooperation of the main bevel gear 18 and the auxiliary bevel gear 16. The rotation of the screw rod 14 drives the lifting nut 13 to rise, and then drives the auxiliary roller 4 to move up, releasing the tension of the main roller 3 and the auxiliary roller 4 on the conveyor belt 5.

[0024] Specifically, when the lifting nut 13 rises, the moving plate 19 will be driven to rise, and then the mounting plate 8 will be driven to move toward the middle through the cooperation of the inclined plate 20, the inclined groove 21, the moving hole 9 and the fastening bolt 10. The movement of the mounting plate 8 will drive the adjacent main roller 3 to move. At this time, the fastening bolt 10 can be loosened to release the fastening connection with the mounting plate 8. Then, the mounting plate 8 can be moved out of the frame 1 along the trajectory of the moving groove 7. At this time, the constraint frame 42 will receive the main roller 3, so that the main roller 3 can be easily disassembled. Conversely, the installation of the main roller 3 can also be completed conveniently.

[0025] Reference Figure 7-Figure 9The lifting structure includes a groove 26 and a movable groove 32 arranged on one side of the frame body 1. A rotating shaft 27 is fixed in the groove 26, and a rotating plate 28 is rotatably sleeved on the outer wall of the rotating shaft 27. The first support column 30 is rotatably arranged on one side of the rotating plate 28, and the outer wall of the rotating shaft 27 is also sleeved with a torsion spring 29 fixedly connected to the rotating plate 28, and one end of the torsion spring 29 is fixedly connected to the inner wall of one side of the groove 26. In this way, the rotating plate 28 can drive the first support column 30 to rotate to support the conveyor belt 5. An extrusion block 33 is slidably connected in the movable groove 32, and a second support column 34 is rotatably arranged on one side of the extrusion block 33. The extrusion block 33 can drive the second support column 34 to move downward to support the conveyor belt 5. Fixed blocks 35 are fixed to the inner walls of the movable groove 32 on both sides away from each other, and cross plates 37 are fixed to both sides of the extrusion block 33. A plurality of tension springs 36 are fixed to the bottom of the fixing block 35 and the top of the transverse plate 37 . The tension springs 36 are used to drive the extrusion block 33 and the second support column 34 to reset.

[0026] Reference Figure 7-Figure 9 In addition, the lifting structure also includes a protrusion 31 fixedly arranged on one side of the bottom of the moving frame 38, and the protrusion 31 cooperates with the moving frame 38 and the mounting plate 8. Both sides of the top of the extrusion block 33 are provided with inclined surfaces, and these two inclined surfaces also cooperate with the moving frame 38 and the mounting plate 8. A clearance groove 41 is provided at one end of the frame 1, and a plurality of rubidium magnets 39 located in the moving groove 7 are fixed at one end of the moving frame 38. An iron block is fixedly embedded on one side of the mounting plate 8, and a magnetic attraction is generated between the rubidium magnet 39 and the iron block, so that the mounting plate 8 can drive the moving frame 38 to squeeze the extrusion block 33 downward and drive the rotating plate 28 to rotate. A magnet block 40 is fixed on the inner wall of the side of the moving frame 38 away from the mounting plate 8, and an iron sheet layer is fixedly embedded on the inner wall of one side of the clearance groove 41. A magnetic attraction is generated between the magnet block 40 and the iron sheet layer, so that the moving frame 38 can maintain stability.

[0027] Specifically, when the inclined plate 20 drives the mounting plate 8 to move toward the middle, the mounting plate 8 will drive the moving frame 38 to move synchronously through the magnetic attraction of the neodymium magnet 39. At the same time, the movement of the mounting plate 8 will respectively press the extrusion block 33 downward and drive the rotating plate 28 to rotate counterclockwise through the protrusion 31. In this way, the first support column 30 and the second support column 34 will extend to the top and bottom of the frame 1 respectively, and jointly lift the conveyor belt 5 to prevent the conveyor belt 5 from falling from between the two main legs 2 when the main roller 3 is replaced. At the same time, the movement of the moving frame 38 will also brake the extrusion block 33 and the rotating plate 28 to maintain the support for the conveyor belt 5.

[0028] Reference Figure 5 and Figure 6, a cavity 15 is provided in each of the two main legs 2. The bottom ends of the two screw rods 14 extend into the cavity 15 and are fixed with a secondary bevel gear 16. The two main legs 2 are rotatably connected with a same transmission rod 17. The outer wall of the transmission rod 17 is fixed with two main bevel gears 18, which are respectively located in the two cavities 15 and mesh with the adjacent secondary bevel gears 16. One end of the transmission rod 17 rotates through one of the main legs 2 and is fixed with a handle for easy operation.

[0029] Specifically, when the main roller 3 needs to be replaced, the operator can rotate the transmission rod 17 through the handle. Due to the meshing relationship between the main bevel gear 18 and the auxiliary bevel gear 16, the rotation of the transmission rod 17 will drive the two screws 14 to rotate synchronously. The rotation of the screw 14 will drive the lifting nut 13 to rise, and then drive the auxiliary roller 4 to move up, releasing the tension of the main roller 3 and the auxiliary roller 4 on the conveyor belt 5.

[0030] Reference Figure 7 and Fig.10 , auxiliary legs 6 are fixed on both sides of the bottom of the frame 1. First slide grooves 23 are provided in the two auxiliary legs 6. Sliding blocks 22 are slidably connected in the two first slide grooves 23. One side of the two sliding blocks 22 is fixedly connected to the adjacent inclined plates 20, so that the sliding cooperation between the first slide grooves 23 and the sliding blocks 22 can make the inclined plates 20 rise and fall stably.

[0031] Reference Fig.10 Two second slide grooves 25 are provided on the side of the frame 1 away from the conveyor belt 5. Pins 24 are slidably connected in the two second slide grooves 25. One end of the two pins 24 is fixedly connected to the adjacent inclined plates 20 respectively, so that the sliding cooperation between the pins 24 and the second slide grooves 25 can also make the inclined plates 20 rise and fall stably.

[0032] Reference Figure 7 and Fig.10 Two constraint frames 42 are fixed to the bottom of the two frames 1. The two constraint frames 42 on the same side are respectively located on both sides of the main legs 2. One side of the constraint frame 42 extends into the conveyor belt 5 to receive the main roller 3 when it is replaced.

[0033] Specifically, the movement of the mounting plate 8 will drive the adjacent main roller 3 to move. At this time, the fastening bolt 10 can be loosened to release the fastening connection with the mounting plate 8. Then, the mounting plate 8 can be moved out of the frame 1 along the track of the moving groove 7. At this time, the constraint frame 42 will receive the main roller 3, so that the main roller 3 can be easily disassembled. Conversely, the installation of the main roller 3 can also be completed conveniently.

[0034] Example 2: Reference Fig.11 and Fig.12, based on the improvement of embodiment 1: two connecting plates 43 are provided between the two frames 1. The two ends of the two connecting plates 43 are respectively fixedly connected to the sides of the two frames 1 close to each other.

[0035] Screw rods 47 are threadedly passed through the two connecting plates 43. The ends of the two screw rods 47 close to each other are rotatably connected to U-shaped frames 44, and the U-shaped frames 44 are slidably arranged between the two frames 1. Rotating rollers 45 are rotatably connected to the two U-shaped frames 44. The outer wall of the rotating roller 45 is fixed with spiral convex patterns 46. The two spiral convex patterns 46 are respectively located on both sides of the two main rollers 3, and the two spiral convex patterns 46 on the outer wall of the two rotating rollers 45 are in opposite directions, which are used to adjust the position of the conveyor belt 5.

[0036] Specifically, if the conveyor belt 5 deviates, the corresponding screw 47 can be rotated to push the spiral convex pattern 46 to collide with the conveyor belt 5 on the outer wall of the adjacent main roller 3. At this time, the rotating roller 45 and the main roller 3 will clamp the conveyor belt 5. When the main roller 3 and the conveyor belt 5 are running, the rotating roller 45 will be driven to rotate synchronously. The spiral convex pattern 46 on the outer wall of the rotating roller 45 will drive the conveyor belt 5 to deviate, thereby adjusting it to the center position.

[0037] A method for using a belt conveyor that is convenient for replacing rollers comprises the following steps: S1. When the main roller 3 is worn and needs to be replaced, the transmission rod 17 is rotated. The transmission rod 17 drives the screw 14 to rotate through the cooperation of the main bevel gear 18 and the auxiliary bevel gear 16, which can drive the lifting nut 13 and the auxiliary roller 4 to move upward, thereby releasing the tension of the conveyor belt 5 caused by the main roller 3 and the auxiliary roller 4; S2. When the lifting nut 13 rises, the inclined plate 20 is synchronously driven to rise. The inclined plate 20 drives the mounting plate 8 to move toward the middle through the cooperation of the inclined groove 21, the moving hole 9 and the fastening bolt 10. The mounting plate 8 drives the adjacent main roller 3 to move. Then, the fastening bolt 10 is loosened to release the fastening connection between the fastening bolt 10 and the mounting plate 8. At this time, the mounting plate 8 can be moved out of the frame 1 along the trajectory of the moving groove 7. The constraint frame 42 can undertake the main roller 3, so that the main roller 3 can be easily disassembled. Conversely, the main roller 3 can be installed conveniently. S3. When the inclined plate 20 drives the mounting plate 8 to move toward the middle, the mounting plate 8 drives the moving frame 38 to move synchronously through the magnetic attraction force of the neodymium magnet 39, and when the mounting plate 8 moves, it squeezes the extrusion block 33 downward and drives the rotating plate 28 to rotate counterclockwise through the protrusion 31. At this time, the first support column 30 and the second support column 34 extend to the top and bottom of the frame body 1 respectively, and the cooperation between the second support column 34 and the first support column 30 can lift the conveyor belt 5 to prevent the conveyor belt 5 from falling from between the two main legs 2 when the main roller 3 is replaced; in addition, the mounting plate 8 drives the moving frame 38 to move, which can brake the extrusion block 33 and the rotating plate 28, and the extrusion block 33 drives the second support column 34 to continue to extend downward, and the moving frame 38 ensures that the rotating plate 28 is in a vertical state, so the moving frame 38 can always ensure that the first support column 30 and the second support column 34 support the conveyor belt 5; S4. When the conveyor belt 5 is offset, the corresponding screw 47 is rotated as needed to push the spiral convex pattern 46 to contact the conveyor belt 5 on the outer wall of the adjacent main roller 3. The rotating roller 45 and the main roller 3 can clamp the conveyor belt 5. When the main roller 3 and the conveyor belt 5 are running, the rotating roller 45 can be driven to rotate synchronously. The spiral convex pattern 46 arranged on the outer wall of the rotating roller 45 can drive the conveyor belt 5 to deviate, so that the conveyor belt 5 can be adjusted to the center position.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A belt conveyor that is easy to replace rollers, characterized in that: It comprises two frames (1), and main legs (2) are fixed at the bottom of the two frames (1); It also comprises two main rollers (3), the two main rollers (3) are rotatably arranged between the two frames (1), an auxiliary roller (4) is arranged between the two main legs (2), and the auxiliary roller (4) is connected to the two main rollers (3) by a conveyor belt (5); Wherein, both ends of the two main rollers (3) are rotatably connected to mounting plates (8), two movable grooves (7) are provided on the sides of the two frames (1) close to each other, and the mounting plates (8) are slidably arranged in the corresponding movable grooves (7), and a threaded hole (11) is provided on the side of the mounting plates (8) away from the main rollers (3); The two main legs (2) are both slidably connected with a lifting nut (13), and the sides of the two lifting nuts (13) close to each other are both rotatably connected to the auxiliary roller (4); Wherein, both ends of the two frames (1) are slidably penetrated by a movable frame (38), and one end of the movable frame (38) extends into an adjacent movable groove (7); two first support columns (30) and a second support column (34) are provided on the side of the two frames (1) close to each other, and the first support column (30) and the second support column (34) cooperate to support the conveyor belt (5) in a relaxed state; Two sets of disassembly structures are respectively arranged in the two main legs (2) and are used to drive two mounting plates (8) located on the same side to move towards each other, so as to facilitate the disassembly of the main roller (3); Four groups of lifting structures are respectively arranged in the two main legs (2) and are used to support the conveyor belt (5) during the disassembly process.

2. A belt conveyor for facilitating replacement of rollers according to claim 1, characterized in that: The disassembly structure comprises a rectangular groove (12) arranged in the main support leg (2), a screw rod (14) is arranged in the rectangular groove (12) for longitudinal rotation, a lifting nut (13) is slidably arranged in the rectangular groove (12), the lifting nut (13) is threadedly sleeved on the outer wall of the screw rod (14), a movable plate (19) is fixed to the bottom of the lifting nut (13), and the movable plate (19) is slidably arranged on one side of the frame body (1), two inclined plates (20) are welded to the top of the movable plate (19), two movable grooves (7) located in the same frame body (1) are each provided with a movable hole (9), two inclined plates (20) are each provided with an inclined groove (21), and fastening bolts (10) are slidably fitted in the two inclined grooves (21), one end of the fastening bolt (10) passes through the movable hole (9) and is threadedly connected to the threaded hole (11), and the movable hole (9), the inclined groove (21) and the fastening bolt (10) cooperate to drive the mounting plate (8) to move.

3. A belt conveyor for facilitating replacement of rollers according to claim 2, characterized in that: The lifting structure comprises a groove (26) and a movable groove (32) arranged on one side of the frame (1); a rotating shaft (27) is fixed in the groove (26); a rotating plate (28) is rotatably sleeved on the outer wall of the rotating shaft (27); the first support column (30) is rotatably arranged on one side of the rotating plate (28); a torsion spring (29) is sleeved on the outer wall of the rotating shaft (27) and is fixedly connected to the rotating plate (28); one end of the torsion spring (29) is fixedly connected to the inner wall of one side of the groove (26); the rotating plate (28) drives the first support column (30) to rotate, so as to control the conveyor belt (5) The movable groove (32) is slidably connected with an extrusion block (33), the second support column (34) is rotatably arranged on one side of the extrusion block (33), the extrusion block (33) drives the second support column (34) to move downward for supporting the conveyor belt (5), the inner walls of the movable groove (32) on both sides away from each other are fixed with fixed blocks (35), the two sides of the extrusion block (33) are fixed with cross plates (37), and the bottom of the fixed block (35) and the top of the cross plate (37) are fixed with a plurality of tension springs (36) for driving the extrusion block (33) and the second support column (34) to reset.

4. A belt conveyor for facilitating replacement of rollers according to claim 3, characterized in that: The lifting structure further comprises a protrusion (31) fixedly arranged on one side of the bottom of the moving frame (38), and the protrusion (31) cooperates with the moving frame (38) and the mounting plate (8); both sides of the top of the extrusion block (33) are provided with inclined surfaces, and both inclined surfaces cooperate with the moving frame (38) and the mounting plate (8); one end of the frame (1) is provided with a clearance groove (41), and the magnet block (40) is used to store and make way for the moving frame (38); one end of the moving frame (38) is fixed with a plurality of rubidium magnets located in the moving groove (7) Iron (39), an iron block is fixedly embedded on one side of the mounting plate (8), a magnetic attraction force is generated between the rubidium magnet (39) and the iron block, and is used to enable the mounting plate (8) to drive the moving frame (38) to squeeze the squeezing block (33) to move downward and drive the rotating plate (28) to rotate, a magnet block (40) is fixedly mounted on the inner wall of one side of the moving frame (38) away from the mounting plate (8), and an iron sheet layer is fixedly embedded on the inner wall of one side of the clearance groove (41), and a magnetic attraction force is generated between the magnet block (40) and the iron sheet layer, and is used to enable the moving frame (38) to maintain stability.

5. The belt conveyor for facilitating replacement of rollers according to claim 4, characterized in that: The two main legs (2) are each provided with a cavity (15), the bottom ends of the two screw rods (14) are both rotatably extended into the cavity (15) and are both fixed with a secondary bevel gear (16), the two main legs (2) are rotatably connected with a same transmission rod (17), the outer wall of the transmission rod (17) is fixedly sleeved with two main bevel gears (18), the two main bevel gears (18) are respectively located in the two cavities (15), the main bevel gears (18) are meshed with adjacent secondary bevel gears (16), and one end of the transmission rod (17) is rotatably passed through one of the main legs (2) and is fixed with a handle.

6. The belt conveyor for facilitating replacement of rollers according to claim 5, characterized in that: Auxiliary legs (6) are fixed on both sides of the bottom of the frame (1), and first sliding grooves (23) are provided in the two auxiliary legs (6). Sliding blocks (22) are slidably connected in the two first sliding grooves (23). One side of the two sliding blocks (22) is fixedly connected to the adjacent inclined plates (20), and the sliding cooperation between the first sliding grooves (23) and the sliding blocks (22) can make the inclined plates (20) rise and fall stably.

7. A belt conveyor for facilitating replacement of rollers according to claim 6, characterized in that: Two second slide grooves (25) are provided on a side of the frame (1) away from the conveyor belt (5), and pins (24) are slidably connected in the two second slide grooves (25). One end of the two pins (24) is fixedly connected to adjacent inclined plates (20), respectively. The sliding cooperation between the pins (24) and the second slide grooves (25) can enable the inclined plates (20) to be stably raised and lowered.

8. The belt conveyor for facilitating replacement of rollers according to claim 7, characterized in that: Two constraint frames (42) are fixed to the bottom of the two frames (1); the two constraint frames (42) located on the same side are respectively located on both sides of the main support leg (2); one side of the constraint frame (42) extends into the conveyor belt (5) for supporting the main roller (3).

9. The belt conveyor for facilitating replacement of rollers according to claim 8, characterized in that: Two connecting plates (43) are provided between the two frames (1), and the two ends of the two connecting plates (43) are respectively fixedly connected to the sides of the two frames (1) close to each other. The two connecting plates (43) are threadedly penetrated by screw rods (47), and the ends of the two screw rods (47) close to each other are rotatably connected to U-shaped frames (44), and the U-shaped frames (44) are slidably provided between the two frames (1). The two U-shaped frames (44) are rotatably connected to rotating rollers (45), and the outer walls of the rotating rollers (45) are fixed with spiral convex patterns (46), and the two spiral convex patterns (46) are respectively located on the two sides of the two main rollers (3), and the two spiral convex patterns (46) on the outer walls of the two rotating rollers (45) are in opposite directions.

10. A method for using a belt conveyor that facilitates replacement of rollers according to claim 9, characterized in that: The following steps are involved: S1. When replacing the worn main roller (3), the transmission rod (17) is rotated to drive the screw rod (14) to rotate through the bevel gear transmission, thereby moving the lifting nut (13) and the auxiliary roller (4) upward to release the tension on the conveyor belt (5); S2, when the lifting nut (13) rises, the mounting plate (8) moves toward the middle through a series of mechanical linkages, and drives the adjacent main roller (3) to move; after loosening the fastening bolts (10), the mounting plate (8) can be removed from the frame (1), and the constraint frame (42) receives the main roller (3), completing the disassembly; conversely, it can be easily installed; S3, when the inclined plate (20) drives the mounting plate (8) to move, the first support column (30) and the second support column (34) extend upward and downward of the frame body (1) respectively, and jointly support the conveyor belt (5) to prevent the conveyor belt (5) from falling when the main roller (3) is replaced; at the same time, the moving frame (38) brakes the relevant components to maintain the support for the conveyor belt (5); S4, when the conveyor belt (5) is offset, the screw (47) is rotated to make the spiral convex pattern (46) contact the conveyor belt (5), and the rotating roller (45) and the main roller (3) clamp the conveyor belt (5); during operation, the rotating roller (45) rotates synchronously, and the spiral convex pattern (46) on its outer wall drives the conveyor belt (5) to deviate and adjust to the center position.

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