Novel wear-resistant and corrosion-resistant mixed casting nylon carrier roller

Abstract

The invention relates to a novel wear-resistant and corrosion-resistant mixed casting nylon carrier roller which comprises a carrier roller pipe body, bearing seats are installed in the two ends of the carrier roller pipe body, rotating shafts are rotatably installed in the bearing seats through bearings, sensors are installed on the rotating shafts, sealing seats are installed on the outer sides of the bearing seats, and the sealing seats are provided with sealing rings. The carrier roller pipe body is made of modified polytetrafluoroethylene master batch, molybdenum disulfide, nylon, ceramic powder, a high-wear-resistant catalyst and an ultra-high molecular material; the service life of the carrier roller is three times that of a steel material, operation is noiseless, cost is reduced, corrosion and rusting are not prone to occurring, the carrier roller pipe body in use is monitored in real time through a sensor in the carrier roller pipe body, the abrasion condition of the carrier roller pipe body is monitored through a thickness sensor, and the operation state of the carrier roller pipe body is monitored through an attitude sensor. Accurate monitoring of the running state, the abrasion state and the like of the carrier roller is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of rollers, in particular to a novel wear-resistant and corrosion-resistant mixed-cast nylon roller. Background Art

[0002] Rollers are important components of belt conveyors. They support the weight of conveyor belts and materials, account for 35% of the total cost of a belt conveyor, and generate more than 70% of the resistance.

[0003] Existing rollers are used in complex environments and need to be replaced every 1-3 months. They are not wear-resistant and are easy to wear, not impact-resistant and easy to change. In addition, the overall mass of the rollers is heavy and not corrosion-resistant. At the same time, manual inspections are required every day, which is time-consuming and labor-intensive, and prone to missed inspections and false inspections. When assembling the rollers, the roller body is fixed by a machine, and accessories such as the bearing seat, bearing and sealing seat are installed manually, resulting in low assembly efficiency. Summary of the invention

[0004] The problem solved by the present invention is to provide a novel wear-resistant and corrosion-resistant mixed-cast nylon roller, which solves the problem that the existing rollers need to be replaced every 1-3 months when used in complex environments, are not wear-resistant and are easy to wear, are not impact-resistant and are easy to change, and the overall mass of the rollers is heavy and not corrosion-resistant. At the same time, manual inspections are required every day, which is time-consuming and labor-intensive, and is prone to missed inspections and false inspections. When assembling the rollers, the roller tube body is fixed by a machine, and the installation of accessories such as bearing seats, bearings and sealing seats is performed manually, resulting in low assembly efficiency.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A new type of wear-resistant and corrosion-resistant mixed-cast nylon roller, comprising a roller tube body, bearing seats are installed inside both ends of the roller tube body, a rotating shaft is rotatably installed in the bearing seat through a bearing, a sensor is installed on the rotating shaft, and a sealing seat is installed outside the bearing seat; The manufacturing materials of the roller tube body include modified polytetrafluoroethylene masterbatch, molybdenum disulfide, nylon, ceramic powder, high wear-resistant catalyst and ultra-high molecular material.

[0006] Preferably, the roller is assembled by an assembly device, which includes a base, on which is mounted a fixing mechanism for fixing and supporting the roller tube body and the rotating shaft, and on which is also mounted an assembly mechanism for assembling the bearing seat, the bearing and the sealing seat.

[0007] Preferably, the fixing mechanism includes two symmetrically arranged vertical arms, a C-shaped seat is installed on the vertical arm, a C-shaped ring is rotatably installed on the outer side of the C-shaped seat, and the two C-shaped rings are connected by a connecting column, a plurality of guide rails and slide grooves are opened at equal angles on the C-shaped seat, a T-shaped block is installed on the guide rail, and a guide wheel is installed on the inner end of the T-shaped block.

[0008] Preferably, a mounting plate is installed on the side wall of the T-block below the C-shaped seat, a first pneumatic cylinder is installed on the bottom of the mounting plate, a lifting arm is installed on the telescopic end of the first pneumatic cylinder, and a supporting shaft seat is installed on the lifting arm.

[0009] Preferably, a C-shaped groove is provided on the C-shaped seat, a C-shaped rail is provided on the C-shaped ring, and the C-shaped rail slides in the C-shaped groove, a plurality of arc grooves are provided on the C-shaped ring, and a guide column penetrating the slide groove and the arc groove is installed on the T-shaped block.

[0010] Preferably, a first motor is mounted on one of the C-shaped seats, and a rotating gear is mounted on an output end of the first motor, and the rotating gear meshes with the external teeth on the C-shaped ring.

[0011] Preferably, the assembly mechanism includes a slide and a fixed plate, a second motor is installed on the base, a threaded rod is installed on the output end of the second motor, the thread directions of the two ends of the threaded rod are opposite, and the two ends of the threaded rod are respectively threadedly connected to the two slides, a column is installed on the slide, a third motor is installed on the fixed plate, the output end of the third motor is connected to the top of the column, a carrier shaft is installed at the inner center of the fixed plate, the diameter of the carrier shaft is the same as the diameter of the rotating shaft, and the C-shaped seat, C-shaped ring and carrier shaft are cocentric.

[0012] Preferably, a second pneumatic cylinder is installed on the outer side of the fixed disk, and the telescopic end of the second pneumatic cylinder passes through the fixed disk and is installed with a ring seat, a plurality of mounting shafts are installed in the ring seat, sprockets are installed on the mounting shafts, and the plurality of sprockets are connected through chain transmission, a push plate is installed on the end of the mounting shaft located on the outer side of the ring seat, a fourth motor is installed on the ring seat, and the output end of the fourth motor is connected to one of the mounting shafts.

[0013] Preferably, the specific operation steps of the assembly device are as follows: Step 1: Drive the rotating gear to rotate through the first motor, and then drive the meshing C-shaped ring to slide along the C-shaped groove of the C-shaped seat through the C-shaped rail. When the C-shaped ring and the C-shaped ring overlap and the opening faces upward, the roller tube body is placed in the C-shaped seat, and the rotating shaft is located in the roller tube body and supported by the support shaft seat. The C-shaped ring rotates. At this time, the arc groove of the C-shaped ring acts on the guide column, driving the guide column to slide in the slide groove, and the T-shaped block connected to the guide column moves along the guide rail until the guide wheel of the T-shaped block contacts the outer wall of the roller tube body, so as to realize the positioning and fixing of the roller tube body. The lifting arm and the support shaft seat are driven to lift and lower through the operation of the first pneumatic cylinder. The support shaft seat adjusts the height of the rotating shaft, and adjusts the rotating shaft and the roller tube body to be co-centric. Step 2: Install the bearing into the bearing seat, and sequentially mount the bearing seat and the sealing seat on the carrier shaft, keeping a distance from each other. The second motor drives the threaded rod to rotate, thereby driving the threaded sliding seat to move. The two sliding seats drive the columns to approach the rotating shaft at the same time until the two carrier shafts are in contact with the two ends of the rotating shaft respectively. At this time, the fixed connection and center positioning of the rotating shaft are achieved. The first pneumatic cylinder contracts, and the support shaft seat is separated from the rotating shaft. The second pneumatic cylinder drives the ring seat to move until the ring seat moves to the bearing seat and the sealing seat. The fourth motor works, the sprockets and the chain drive to realize the rotation of the installation shaft and the push plate. The push plate outside the ring seat rotates into the ring seat. At this time, the second pneumatic cylinder drives the ring seat to move, and presses the bearing seat along the carrier axis and the rotating shaft into the end of the roller tube body. Then the push plate rotates to the outside of the ring seat. At this time, the second pneumatic cylinder shrinks until the ring seat is located between the sealing seat and the fixed plate. The push plate rotates again into the ring seat. At this time, the second pneumatic cylinder drives the ring seat to move, and presses the sealing seat along the carrier axis and the rotating shaft into the bearing seat, completing the assembly of the roller.

[0014] The beneficial effects of the present invention are as follows: the service life of the roller is three times that of steel materials, the roller is noiseless during operation, the cost is reduced and the roller is not easily corroded or rusted. The roller tube body in use is monitored in real time by the sensor inside the roller tube body, the wear condition of the roller tube body is monitored by the thickness sensor, and the running state of the roller tube body is monitored by the attitude sensor, so as to realize accurate monitoring of the running state and wear state of the roller; The fixing mechanism is used to support and limit the roller tube body and the rotating shaft, so that the roller tube body and the rotating shaft are centered and the center of the circle of the roller tube body and the rotating shaft is aligned with the center of the circle of the assembly mechanism. The rotating shaft is first centered and the carrier shaft is docked with the rotating shaft through the assembly mechanism. Then, the bearing seat, the bearing and the sealing seat are automatically assembled to the two ends of the roller tube body and the rotating shaft through the assembly mechanism, so that the automatic assembly of the roller is completed, which greatly improves the assembly efficiency of the roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cross-sectional view of the roller of the present invention; Figure 2 This is a schematic diagram of the structure of the assembly device of the present invention; Figure 3 It is a schematic diagram of the first structure of the fixing mechanism of the present invention; Figure 4 It is a second structural schematic diagram of the fixing mechanism of the present invention; Figure 5 It is a side view of the fixing mechanism of the present invention; Figure 6 It is a first structural schematic diagram of the assembly mechanism of the present invention; Figure 7 It is a second structural schematic diagram of the assembly mechanism of the present invention; Figure 8It is a schematic diagram of the internal structure of the ring seat of the present invention.

[0016] Legend: 1. roller tube body; 2. bearing seat; 3. bearing; 4. rotating shaft; 5. sensor; 6. sealing seat; 7. base; 8. fixing mechanism; 9. assembly mechanism; 10. vertical arm; 11. C-type seat; 12. C-type ring; 13. guide rail; 14. slide groove; 15. T-block; 16. guide wheel; 17. mounting plate; 18. first pneumatic cylinder; 19. lifting arm; 20. supporting shaft seat; 21. arc groove; 22. guide column; 23. connecting column; 24. first motor; 25. rotating gear; 26. slide seat; 27. second motor; 28. threaded rod; 29. ​​column; 30. fixed plate; 31. third motor; 32. loading shaft; 33. second pneumatic cylinder; 34. ring seat; 35. push plate; 36. sprocket; 37. chain; 38. mounting shaft; 39. fourth motor. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Specific examples are given below.

[0019] See also Figure 1 A new type of wear-resistant and corrosion-resistant mixed cast nylon roller, characterized in that it includes a roller tube body 1, bearing seats 2 are installed inside both ends of the roller tube body 1, a rotating shaft 4 is rotatably installed in the bearing seat 2 through a bearing 3, a sensor 5 is installed on the rotating shaft 4, the sensor 5 includes a thickness sensor and a posture sensor, and a sealing seat 6 is installed outside the bearing seat 2; The materials used to make the roller tube body 1 include modified polytetrafluoroethylene masterbatch, molybdenum disulfide, nylon, ceramic powder, high wear-resistant catalyst and ultra-high molecular material. The service life of the roller is 3 times that of steel, and it runs without noise, reduces costs and is not easy to corrode and rust. The sensor 5 inside the roller tube body 1 is used to monitor the roller tube body 1 in real time, the thickness sensor monitors the wear of the roller tube body 1, and the posture sensor monitors the operating status of the roller tube body 1, so as to realize accurate monitoring of the operating status and wear status of the roller.

[0020] See also Figure 2~Figure 8The roller is assembled by an assembly device, which includes a base 7, on which a fixing mechanism 8 for fixing and supporting the roller tube body 1 and the rotating shaft 4 is installed, and an assembly mechanism 9 for assembling the bearing seat 2, the bearing 3 and the sealing seat 6 is also installed on the base 7. The fixing mechanism 8 includes two symmetrically arranged vertical arms 10, on which a C-shaped seat 11 is installed, and a C-shaped ring 12 is rotatably installed on the outer side of the C-shaped seat 11, and the two C-shaped rings 12 are connected by a connecting column 23. A plurality of guide rails 13 and slide grooves 14 are opened at equal angles on the C-shaped seat 11, and a T-block 15 is installed on the guide rail 13. A guide wheel 16 is installed at the inner end of the T-block 15, and a mounting plate 17 is installed on the side wall of the T-block 15 located below the C-shaped seat 11. A first pneumatic cylinder 18 is installed at the bottom of the mounting plate 17, a lifting arm 19 is installed at the telescopic end of the first pneumatic cylinder 18, a support shaft seat 20 is installed on the lifting arm 19, a C-shaped groove is provided on the C-shaped seat 11, a C-shaped rail is provided on the C-shaped ring 12, and the C-shaped rail slides in the C-shaped groove, a plurality of arc grooves 21 are provided on the C-shaped ring 12, a guide column 22 penetrating the slide groove 14 and the arc groove 21 is installed on the T-shaped block 15, a first motor 24 is installed on one of the C-shaped seats 11, a rotating gear 25 is installed at the output end of the first motor 24, and the rotating gear 25 is meshed with the external gear on the C-shaped ring 12, the assembly mechanism 9 includes a slide seat 26 and a fixed plate 30, a second motor 27 is installed on the base 7, and a threaded Rod 28, the thread directions of both ends of the threaded rod 28 are opposite, and the two ends of the threaded rod 28 are respectively threadedly connected with the two slides 26, a column 29 is installed on the slide 26, a third motor 31 is installed on the fixed plate 30, and the output end of the third motor 31 is connected to the top of the column 29, a carrier shaft 32 is installed at the center of the inner side of the fixed plate 30, the diameter of the carrier shaft 32 is the same as the diameter of the rotating shaft 4, and the C-shaped seat 11, the C-shaped ring 12 and the carrier shaft 32 are cocentric, a second pneumatic cylinder 33 is installed on the outer side of the fixed plate 30, and the telescopic end of the second pneumatic cylinder 33 penetrates the fixed plate 30 and is installed with a ring seat 34, a plurality of mounting shafts 38 are installed in the ring seat 34, a sprocket 36 is installed on the mounting shaft 38, and the plurality of sprockets 36 are driven by a chain 37 The end of the mounting shaft 38 is located outside the ring seat 34 and is provided with a push plate 35. A fourth motor 39 is provided on the ring seat 34, and the output end of the fourth motor 39 is connected to one of the mounting shafts 38. The roller tube body 1 and the rotating shaft 4 are supported and limited by the fixing mechanism 8, so that the roller tube body 1 and the rotating shaft 4 are centered, and the center of the roller tube body 1 and the rotating shaft 4 are conveniently aligned with the center of the assembly mechanism 9. First, the rotating shaft 4 is centered and the carrier shaft 32 is docked with the rotating shaft 4 through the assembly mechanism 9. Then, the bearing seat 2, the bearing 3 and the sealing seat 6 are automatically assembled to the two ends of the roller tube body 1 and the rotating shaft 4 through the assembly mechanism 9, so as to complete the automatic assembly of the rollers, thereby greatly improving the assembly efficiency of the rollers.

[0021] The specific steps of assembling the device are as follows: Step 1: The first motor 24 drives the rotating gear 25 to rotate, thereby driving the meshing C-shaped ring 12 to slide along the C-shaped groove of the C-shaped seat 11 through the C-shaped rail. When the C-shaped ring 12 and the C-shaped ring 12 overlap and the opening faces upward, the roller tube body 1 is placed in the C-shaped seat 11, and the rotating shaft 4 is located in the roller tube body 1 and supported by the support shaft seat 20. The C-shaped ring 12 rotates. At this time, the arc groove 21 of the C-shaped ring 12 acts on the guide column 22, driving the guide column 22 to slide in the slide groove 14, and the T-shaped block 15 connected to the guide column 22 moves along the guide rail 13 until the guide wheel 16 of the T-shaped block 15 contacts the outer wall of the roller tube body 1, so as to realize the positioning and fixing of the roller tube body 1. The lifting arm 19 and the support shaft seat 20 are driven to rise and fall by the first pneumatic cylinder 18. The support shaft seat 20 adjusts the height of the rotating shaft 4, and adjusts the rotating shaft 4 to be co-centric with the roller tube body 1. Step 2: Install the bearing 3 into the bearing seat 2, and sequentially mount the bearing seat 2 and the sealing seat 6 on the carrier shaft 32, and keep a distance from each other. The second motor 27 drives the threaded rod 28 to rotate, thereby driving the threaded sliding seat 26 to move. The two sliding seats 26 drive the columns 29 to approach the rotating shaft 4 at the same time, until the two carrier shafts 32 are in contact with the two ends of the rotating shaft 4 respectively, at which time the fixed connection and center positioning of the rotating shaft 4 are achieved, the first pneumatic cylinder 18 contracts, the support shaft seat 20 is separated from the rotating shaft 4, and the second pneumatic cylinder 33 drives the ring seat 34 to move, until the ring seat 34 moves between the bearing seat 2 and the sealing seat 6, and the fourth The motor 39 works, and the sprocket 36 and the chain 37 transmit the transmission to realize the rotation of the installation shaft 38 and the push plate 35. The push plate 35 located outside the ring seat 34 rotates into the ring seat 34. At this time, the second pneumatic cylinder 33 drives the ring seat 34 to move, and presses the bearing seat 2 into the end of the roller tube body 1 along the carrier shaft 32 and the rotating shaft 4. Then the push plate 35 rotates to the outside of the ring seat 34. At this time, the second pneumatic cylinder 33 shrinks until the ring seat 34 is located between the sealing seat 6 and the fixed plate 30. The push plate 35 rotates again into the ring seat 34. At this time, the second pneumatic cylinder 33 drives the ring seat 34 to move, and presses the sealing seat 6 into the bearing seat 2 along the carrier shaft 32 and the rotating shaft 4, completing the assembly of the roller.

[0022] The above are only preferred specific implementation modes 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 solutions and inventive concepts 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 new type of wear-resistant and corrosion-resistant mixed-cast nylon roller, characterized in that: The roller support tube (1) comprises a roller tube body (1), bearing seats (2) are installed inside both ends of the roller tube body (1), a rotating shaft (4) is rotatably installed in the bearing seat (2) via a bearing (3), a sensor (5) is installed on the rotating shaft (4), and a sealing seat (6) is installed outside the bearing seat (2); The materials used to make the roller tube body (1) include modified polytetrafluoroethylene masterbatch, molybdenum disulfide, nylon, ceramic powder, high wear-resistant catalyst and ultra-high molecular weight material.

2. The novel wear-resistant and corrosion-resistant mixed-cast nylon roller according to claim 1 is characterized in that: The roller is assembled by means of an assembly device, the assembly device comprising a base (7), a fixing mechanism (8) for fixing and supporting the roller tube body (1) and the rotating shaft (4) being mounted on the base (7), and an assembly mechanism (9) for assembling the bearing seat (2), the bearing (3) and the sealing seat (6) being also mounted on the base (7).

3. The novel wear-resistant and corrosion-resistant mixed-cast nylon roller according to claim 2 is characterized in that: The fixing mechanism (8) comprises two symmetrically arranged vertical arms (10), a C-shaped seat (11) being mounted on the vertical arms (10), a C-shaped ring (12) being rotatably mounted on the outer side of the C-shaped seat (11), and the two C-shaped rings (12) being connected via a connecting column (23), a plurality of guide rails (13) and slide grooves (14) being provided at equal angles on the C-shaped seat (11), a T-shaped block (15) being mounted on the guide rail (13), and a guide wheel (16) being mounted on the inner end of the T-shaped block (15).

4. The novel wear-resistant and corrosion-resistant mixed-cast nylon roller according to claim 3 is characterized in that: A mounting plate (17) is installed on the side wall of the T-shaped block (15) below the C-shaped seat (11), a first pneumatic cylinder (18) is installed on the bottom of the mounting plate (17), a lifting arm (19) is installed on the telescopic end of the first pneumatic cylinder (18), and a supporting shaft seat (20) is installed on the lifting arm (19).

5. The novel wear-resistant and corrosion-resistant mixed-cast nylon roller according to claim 4 is characterized in that: The C-shaped seat (11) is provided with a C-shaped groove, the C-shaped ring (12) is provided with a C-shaped rail, and the C-shaped rail slides in the C-shaped groove, the C-shaped ring (12) is provided with a plurality of arc grooves (21), and the T-shaped block (15) is provided with a guide column (22) penetrating the slide groove (14) and the arc groove (21).

6. The novel wear-resistant and corrosion-resistant mixed-cast nylon roller according to claim 5 is characterized in that: A first motor (24) is mounted on one of the C-shaped seats (11), and a rotating tooth (25) is mounted on the output end of the first motor (24), and the rotating tooth (25) meshes with the external teeth on the C-shaped ring (12).

7. The novel wear-resistant and corrosion-resistant mixed-cast nylon roller according to claim 6 is characterized in that: The assembly mechanism (9) comprises a slide seat (26) and a fixed plate (30). A second motor (27) is mounted on the base (7). A threaded rod (28) is mounted on the output end of the second motor (27). The threads of the two ends of the threaded rod (28) are in opposite directions, and the two ends of the threaded rod (28) are respectively threadedly connected to the two slide seats (26). A column (29) is mounted on the slide seat (26). A third motor (31) is mounted on the fixed plate (30). The output end of the third motor (31) is connected to the top of the column (29). A loading shaft (32) is mounted at the inner center of the fixed plate (30). The diameter of the loading shaft (32) is the same as that of the rotating shaft (4), and the C-shaped seat (11), the C-shaped ring (12) and the loading shaft (32) are cocentric.

8. The novel wear-resistant and corrosion-resistant mixed-cast nylon roller according to claim 7 is characterized in that: A second pneumatic cylinder (33) is installed on the outside of the fixed disk (30), and a ring seat (34) is installed on the telescopic end of the second pneumatic cylinder (33) passing through the fixed disk (30), a plurality of mounting shafts (38) are installed in the ring seat (34), sprockets (36) are installed on the mounting shafts (38), and the plurality of sprockets (36) are connected by a chain (37) in a transmission manner, a push plate (35) is installed on the end of the mounting shaft (38) located on the outside of the ring seat (34), a fourth motor (39) is installed on the ring seat (34), and an output end of the fourth motor (39) is connected to one of the mounting shafts (38).

9. The novel wear-resistant and corrosion-resistant mixed-cast nylon roller according to claim 8 is characterized in that: The specific operation steps of the assembly device are as follows: Step 1: The first motor (24) drives the rotating gear (25) to rotate, thereby driving the meshing C-shaped ring (12) to slide along the C-shaped groove of the C-shaped seat (11) through the C-shaped rail. When the C-shaped ring (12) and the C-shaped ring (12) overlap and the opening faces upward, the roller tube body (1) is placed in the C-shaped seat (11), and the rotating shaft (4) is located in the roller tube body (1) and supported by the support shaft seat (20). The C-shaped ring (12) rotates, and the arc groove (21) of the C-shaped ring (12) acts on the guide column. (22), driving the guide column (22) to slide in the slide groove (14), and the T-block (15) connected to the guide column (22) moves along the guide rail (13) until the guide wheel (16) of the T-block (15) contacts the outer wall of the roller tube body (1), thereby positioning and fixing the roller tube body (1), and driving the lifting arm (19) and the support shaft seat (20) to rise and fall through the operation of the first pneumatic cylinder (18), and the support shaft seat (20) to adjust the height of the rotating shaft (4), so that the rotating shaft (4) and the roller tube body (1) are co-centered; Step 2: Install the bearing (3) into the bearing seat (2), and sequentially mount the bearing seat (2) and the sealing seat (6) on the carrier shaft (32) and keep a distance between them. The threaded rod (28) is driven to rotate by the second motor (27), thereby driving the threaded sliding seat (26) to move. The two sliding seats (26) drive the columns (29) to approach the rotating shaft (4) at the same time until the two carrier shafts (32) are in contact with the two ends of the rotating shaft (4) respectively. At this time, the fixed connection and center positioning of the rotating shaft (4) are achieved. The first pneumatic cylinder (18) is contracted, and the support shaft seat (20) is separated from the rotating shaft (4). The ring seat (34) is driven to move by the second pneumatic cylinder (33) until the ring seat (34) moves between the bearing seat (2) and the sealing seat (6). The fourth motor (39) The sprocket (36) and the chain (37) are driven to realize the rotation of the installation shaft (38) and the push plate (35). The push plate (35) located outside the ring seat (34) rotates into the ring seat (34). At this time, the second pneumatic cylinder (33) drives the ring seat (34) to move, and presses the bearing seat (2) along the load-bearing shaft (32) and the rotating shaft (4) into the end of the roller tube body (1). Then the push plate (35) rotates to the outside of the ring seat (34). At this time, the second pneumatic cylinder (33) shrinks until the ring seat (34) is located between the sealing seat (6) and the fixed plate (30). The push plate (35) rotates again into the ring seat (34). At this time, the second pneumatic cylinder (33) drives the ring seat (34) to move, and presses the sealing seat (6) along the load-bearing shaft (32) and the rotating shaft (4) into the bearing seat (2), completing the assembly of the roller.

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