Shafting structure of rolling forming production line and replacement method

Abstract

The shafting structure comprises a transmission mechanism and a sizing mechanism, the transmission mechanism is connected with the sizing mechanism through a clutch, the transmission mechanism comprises a fixing frame, a sliding seat and an adjusting cylinder are arranged on the fixing frame, the sliding seat is in sliding connection with the fixing frame, the output end of the adjusting cylinder is connected with the sliding seat, and the output end of the adjusting cylinder is connected with the sliding seat. And a transmission shaft is arranged on the sliding seat in a penetrating manner. The compression roller assembly is modularly designed, so that the compression roller assembly can be pre-assembled according to inspection requirements, and compared with a traditional split structure, the replacement efficiency is improved; the magnetic coupling is connected with the driving source, compared with a traditional coupling, the disassembly and assembly process is optimized and simplified, the replacement efficiency is further improved, meanwhile, the sliding seat and the adjusting cylinder are arranged on the transmission assembly, the position of the transmission shaft can be adjusted according to the position of the replaced compression roller assembly, the matching precision of the coupling is guaranteed, and the practicability is high. And stable transmission of power is ensured.

Description

Technical Field

[0001] The present invention belongs to the technical field of shaft system replacement of a roll forming production line, and particularly relates to a shaft system structure and a replacement method of a roll forming production line. Background Art

[0002] A steel pipe roll forming production line is a special equipment for producing straight seam welded pipes. Taking hot rolled strip as raw material, it produces round pipes and square and rectangular pipes of required specifications through cold bending forming and high frequency welding methods. Generally, it includes a finishing stand and a sizing stand. Both forming and sizing are completed by pressure rollers. However, when replacing the sizing pressure rollers on the existing roll forming production line, it is necessary to manually disconnect the connection between the pressure roller and the driving mechanism, then disassemble the fixing frame for installing the pressure roller, and finally lift out the pressure rollers one by one with a crane and then hoist the pressure rollers to be replaced onto the fixing frame one by one for debugging, and finally complete the installation of the fixing frame and the connection between the pressure roller and the driving mechanism. This will result in a long downtime, seriously affecting production efficiency. At the same time, the labor intensity of the staff is high, and due to the large weight of the pressure roller, multiple people are usually required to cooperate to complete the replacement. If there are mistakes in the cooperation, it will pose a threat to the safety of the construction personnel.

[0003] Therefore, it is necessary for us to design a shaft system structure and a replacement method of a roll forming production line to solve these problems. Summary of the Invention

[0004] The problem to be solved by the present invention is to provide a shaft system structure and a replacement method of a roll forming production line.

[0005] To solve the above technical problems, the technical solution adopted by the present invention is: A shaft system structure of a roll forming production line includes a transmission mechanism and a sizing mechanism. The transmission mechanism is connected to the sizing mechanism through a clutch. The transmission mechanism includes a fixing frame, on which a sliding seat and an adjusting cylinder are arranged. The sliding seat is slidably connected to the fixing frame. The output end of the adjusting cylinder is connected to the sliding seat and is used to drive the sliding seat to move on the fixing frame. A transmission shaft penetrates through the sliding seat. The sizing mechanism includes an installation frame. An adjusting component is detachably arranged on the top of the installation frame. A pressure roller component is slidably arranged on the installation frame below the adjusting component, and the output end of the adjusting component is connected to the pressure roller component and is used to drive the pressure roller component to move on the installation frame. The clutch includes a driving disk and a driven disk. The driving disk is fixedly arranged at one end of the transmission shaft. The driven disk is connected to the pressure roller component, and the driving disk and the driven disk are opposite in position. A plurality of permanent magnets are arranged on the opposite surfaces of the driving disk and the driven disk, and the arrangement forms of the permanent magnets on the driving disk and the driven disk are the same.

[0006] Preferably, the press roll assembly includes two flat roll modules and two side roll modules. The two side roll modules are located between the two flat roll modules, and the output ends of the two side roll modules face each other. A connecting block is fixedly arranged on each of the flat roll modules and the side roll modules, and the connecting blocks on the two flat roll modules and the two side roll modules are connected by connecting screws.

[0007] With such a setting, it is convenient for the disassembly, assembly and combination of the modules, and they can be assembled according to the usage requirements, with high flexibility.

[0008] Preferably, the number of the sliding seats and the adjusting cylinders on the fixed frame is two each. The two sliding seats are arranged vertically. The upper adjusting cylinder is connected to the upper sliding seat, and the upper adjusting cylinder is fixedly connected to the fixed frame. The lower adjusting cylinder is connected to the lower sliding seat. The lower adjusting cylinder is hinged to the fixed frame through a rotating seat, and the output end of the lower adjusting cylinder is hinged to the lower sliding seat through a connecting seat, and the distance between the rotating seat and the connecting seat does not exceed the length of the lower adjusting cylinder.

[0009] With such a setting, more stable support and adjustment capabilities can be provided to adapt to the force changes of the transmission shaft under complex working conditions. The hinged design of the lower adjusting cylinder allows it to swing within a certain range, avoiding stress concentration caused by rigid connection, and at the same time ensuring the controllable stroke of the adjusting cylinder, improving the stability and durability of the mechanism.

[0010] Preferably, the flat roll module includes two flat roll seats slidably arranged on the mounting frame. A flat roll shaft is rotatably arranged between the two flat roll seats. One end of the flat roll shaft is connected to one of the flat roll seats, and the other end passes through the other flat roll seat and is fixedly connected to the driven disk. A sizing flat roll is fixedly arranged on the flat roll shaft between the two flat roll seats. A connecting frame is also fixedly arranged on the top of the upper flat roll seat, and a pin is arranged on the connecting frame. A support block is arranged at the bottom of the lower flat roll seat.

[0011] With such a setting, the sizing flat roll is firmly installed, and the flat roll shaft is directly connected to the driven disk, reducing power transmission loss. The design of the connecting frame and the pin facilitates quick connection with the adjusting component, and the lower support block enhances the stability of the flat roll seat, ensuring the accuracy and reliability of the sizing process.

[0012] Preferably, the side roller module includes a side roller seat slidably connected to the mounting frame. A side roller box and a side roller case are arranged on the side roller seat. The side roller box is slidably connected to the side roller seat, and a sizing side roller is rotatably arranged on the side roller box. The side roller box is fixedly connected to the side roller case. A side roller worm gear and a side roller worm are arranged in the side roller case. The side roller worm is meshed with the side roller worm gear. An adjusting screw rod penetrates through the side roller worm gear. The adjusting screw rod cooperates with the side roller worm gear, and one end of the adjusting screw rod passes through the side roller case and is fixedly connected to the side roller box. An adjusting motor is also arranged on the side roller case, and the output end of the adjusting motor is connected to the side roller worm.

[0013] With such a setting, through the transmission structure of the worm gear and worm and the adjusting screw rod, the micro and precise adjustment of the position of the sizing side roller can be realized, meeting the high-precision requirements for the lateral dimensions of different profiles. The adjusting motor drives the worm, with a large transmission ratio and strong self-locking property, ensuring the stable position of the side roller and avoiding deviation caused by external forces during the processing.

[0014] Preferably, the adjusting assembly includes two adjusting boxes. The two adjusting boxes are fixedly connected by a connecting rod. An elevating worm gear and an elevating worm that are meshed with each other are arranged in the adjusting box. The elevating worms on the two adjusting boxes are connected by a synchronizing shaft. An elevating screw rod penetrates through the elevating worm gear. The elevating screw rod matches the elevating worm gear, and a clamping groove is arranged at one end of the elevating screw rod. The clamping groove matches the insertion pin. The connecting frame and the elevating screw rod are connected by the insertion pin and the clamping groove in a matching manner. A connecting groove is also arranged on each adjusting box.

[0015] With such a setting, it is ensured that the lifting actions on both sides are completely synchronous, avoiding the tilting or uneven force of the pressure roller assembly. The self-locking property of the elevating worm gear can prevent the pressure roller assembly from sliding down due to gravity or external forces during operation. The quick connection design of the clamping groove and the insertion pin facilitates the disassembly and assembly of the adjusting assembly and the flat roller module, improving the equipment adjustment efficiency.

[0016] Preferably, the permanent magnet is a neodymium iron boron magnet, and the number is an integer multiple of three. A number of permanent magnets are arranged in a circle on the driving disk and the driven disk according to the Halbach array.

[0017] With such a setting, through the high magnetism and strong coercivity of the neodymium iron boron magnet, a stable and strong magnetic coupling can be provided. The Halbach array arrangement can concentrate the magnetic lines on one side, significantly enhancing the attraction between the driving disk and the driven disk, improving the transmission efficiency, reducing magnetic leakage and energy loss at the same time, and lowering the equipment operation cost.

[0018] Preferably, a connecting bolt is hinged on the mounting frame. The connecting bolt matches the connecting groove. The adjusting box and the mounting frame are connected by the connecting groove and the connecting bolt in a matching manner.

[0019] This setting makes the disassembly and assembly operation of the adjustment box and the mounting bracket more convenient. The position of the adjustment component can be quickly adjusted or replaced without complex tools, improving the maintenance efficiency and flexibility of the equipment.

[0020] Preferably, the transmission shaft is connected to the output end of the driving mechanism through a universal joint coupling.

[0021] This setting can effectively compensate for the angular deviation and axial displacement between the transmission shaft and the driving mechanism, allowing the equipment to have a small offset due to vibration and installation errors during operation, ensuring the stability and continuity of power transmission, extending the service life of the transmission components, and reducing the probability of failures.

[0022] S1: Assemble the new pressure roller assembly to be replaced, fix it after adjusting the distance between the sizing flat roller and the sizing side roller; S2: Pull out the pin to separate the adjustment component from the pressure roller component, then loosen the connecting bolts and remove them from the connecting groove, and use the hoisting equipment to lift the adjustment component and the old pressure roller component out of the mounting bracket in sequence; S3: Remove the driven disk on the old pressure roller component and install it on the new pressure roller component. Then, use the hoisting equipment to lift the new pressure roller component onto the mounting bracket, and then lift the adjustment component onto the mounting bracket; S4: Fix the adjustment component and the mounting bracket through the connecting bolts and the connecting groove. Adjust the position of the lifting screw rod so that the end of the lifting screw rod inserts into the connecting frame, and then insert the pin into the connecting frame to connect the adjustment component with the new pressure roller component; S5: Adjust the position of the new pressure roller component through the lifting screw rod. After the position of the new pressure roller component is adjusted, use the adjustment cylinder to adjust the position of the sliding seat so that the driving disk on the transmission shaft is coaxial with the driven disk on the new pressure roller component The advantages and positive effects of the present invention are: Through the modular design of the pressure roller component, the present invention can be pre-assembled according to the review requirements, improving the replacement efficiency compared with the traditional split structure; by setting an adjustment component on the mounting bracket, the position of the replaced pressure roller component can be adjusted, enabling it to quickly match with adjacent equipment and improving the commissioning efficiency after installation; using a magnetic coupling to connect with the driving source simplifies the disassembly and assembly process compared with the traditional coupling, further improving the replacement efficiency. At the same time, the sliding seat and the adjustment cylinder are arranged on the transmission component to adjust the position of the transmission shaft according to the position of the replaced pressure roller component, ensuring the matching accuracy of the coupling and the stable transmission of power. Brief Description of the Drawings

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] Figure 1 is the overall structural schematic diagram of the forming roll stand of the production line of the present invention; Figure 2 is the front view of the forming roll stand of the present invention; Figure 3 is the schematic diagram of the transmission mechanism of the present invention; Figure 4 is the schematic diagram of the sizing mechanism of the present invention; Figure 5 is the assembly structural schematic diagram of the adjusting component and the pressure roll component of the present invention; Figure 6 is the schematic diagram of the adjusting component of the present invention; Figure 7 is the internal structural schematic diagram of the adjusting box of the present invention; Figure 8 is the schematic diagram of the pressure roll component of the present invention; Figure 9 is the overall structural schematic diagram of the sizing side roll of the present invention; Figure 10 is the internal structural schematic diagram of the side roll box of the present invention; Figure 11 is the schematic diagram of the clutch structure of the present invention; Figure 12 is the corresponding position schematic diagram after the permanent magnet Halbach array on the driving disk and the driven disk of the present invention; Figure 13 is the schematic diagram of the circular arrangement of the permanent magnet Halbach array of the present invention; Figure 14 is Figure 5 the enlarged view of the structure at position A in

[0025] The description of the reference numerals is as follows: 1. Driving mechanism; 11. Base; 12. Driving motor; 13. Reducer; 2. Transmission mechanism; 21. Fixed frame; 22. Sliding seat; 23. Upper adjusting cylinder; 24. Lower adjusting cylinder; 25. Rotating seat; 26. Connecting seat; 27. Transmission shaft; 28. Coupling; 3. Sizing mechanism; 31. Mounting frame; 311. Connecting bolt; 32. Adjusting assembly; 35. Pressure roller assembly; 321. Adjusting box; 322. Connecting rod; 323. Synchronous shaft; 324. Connecting groove; 325. Lifting screw; 326. Card slot; 327. Adjusting worm gear; 328. Adjusting worm; 329. Lifting protection tube; 330. Connecting frame; 331. Pin; 351. Flat roller seat; 352. Flat roller shaft; 353. Sizing flat roller; 354. Side roller box; 355. Side roller worm gear; 356. Side roller worm; 357. Adjusting motor; 358. Side roller protection tube; 359. Side roller box; 360. Sizing side roller; 361. Adjusting screw; 362. Side roller seat; 363. Support block; 364. Connecting block; 365. Connecting screw; 4. Clutch; 41. Driving disk; 42. Driven disk; 43. Permanent magnet. Detailed implementation mode

[0026] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more.

[0027] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

[0028] The present invention will be further described below with reference to the drawings: Embodiment: As Figures 1 - 14As shown in the figure, a shafting structure of a roll forming production line includes a transmission mechanism 2 and a sizing mechanism 3. The transmission mechanism 2 is connected to the sizing mechanism 3 through a clutch 4. The transmission mechanism 2 uses a fixed frame 21 as the basic bearing structure. A sliding seat 22 and an adjusting cylinder are arranged on the fixed frame 21. The sliding seat 22 is slidably connected to the fixed frame 21 by means of a slide rail. The output end of the adjusting cylinder is rigidly connected to the sliding seat 22. When the adjusting cylinder expands and contracts, it can drive the sliding seat 22 to move along a preset direction on the fixed frame 21. The transmission shaft 27 passing through the sliding seat 22 changes its position as the sliding seat 22 is adjusted, so as to realize the dynamic adjustment of the transmission path; The sizing mechanism 3 takes the mounting frame 31 as the main body and operates relying on the power provided by the transmission mechanism 2. An adjusting component 32 is detachably arranged on the top of the mounting frame 31. A pressure roller component 35 is slidably arranged on the mounting frame 31 below the adjusting component 32. The pressure roller component 35 is slidably connected to the mounting frame 31 through a vertically arranged linear guide rail. The output end of the adjusting component 32 is connected to the pressure roller component 35. When the adjusting component 32 works, it can accurately drive the pressure roller component 35 to move vertically on the mounting frame 31, so as to adjust the overall position of the pressure roller component 35, make its position match the adjacent equipment, and meet the continuous production requirements; The clutch 4 is the connection hub between the transmission mechanism 2 and the sizing mechanism 3. The clutch 4 includes a driving disk 41 and a driven disk 42. The driving disk 41 is fixedly arranged at one end of the transmission shaft 27 and rotates synchronously with the transmission shaft 27; the driven disk 42 is connected to the power input end of the pressure roller component 35, and the driving disk 41 and the driven disk 42 are opposite in position. A number of permanent magnets 43 are arranged in an array on the opposite surfaces of the driving disk 41 and the driven disk 42, and the arrangement forms of the permanent magnets 43 of the two are the same. Through the magnetic coupling effect, when the driving disk 41 rotates, the driven disk 42 rotates synchronously under the drive of the magnetic field force, realizing the non-contact transmission of power. The permanent magnet 43 clutch 4 adopts the non-contact magnetic drive method, which optimizes the disassembly and assembly process and has the advantages of stable transmission, no wear, and overload protection.

[0029] A connecting block 364 is fixedly arranged on each module of the pressure roller component 35. The connecting blocks 364 on the two flat roller modules and the two side roller modules are connected through a connecting screw 365. By tightening the connecting screw 365, the four modules can be firmly assembled into one body to jointly complete the sizing work of the material. Sizing processing is carried out in multiple dimensions.

[0030] There are two sliding seats 22 and two adjusting cylinders on the fixing frame 21, and the two sliding seats 22 are arranged vertically. The upper adjusting cylinder 23 connected to the upper sliding seat 22 has its cylinder body fixedly connected to the fixing frame 21 by bolts; the lower adjusting cylinder 24 connected to the lower sliding seat 22 has its cylinder body hinged to the fixing frame 21 through a rotating seat 25, and the output end is hinged to the lower sliding seat 22 through a connecting seat 26. Since the distance between the rotating seat 25 and the connecting seat 26 does not exceed the length of the lower adjusting cylinder 24, during the telescopic process of the lower adjusting cylinder 24, the angle can be adaptively adjusted by the rotation of the hinge point to ensure the stable drive of the lower sliding seat 22. At the same time, in cooperation with the upper adjusting cylinder 23, precise double-point adjustment of the transmission shaft 27 is achieved.

[0031] As a key part of the pressure roller assembly 35, the flat roller module includes two flat roller seats 351 slidably arranged on the mounting frame 31, and a flat roller shaft 352 is rotatably arranged between the two flat roller seats 351. The flat roller shaft 352 is rotatably connected to the two flat roller seats 351 through bearings, and one end passes through the other flat roller seat 351 and is fixedly connected to the driven disk 42, thereby transmitting the power transmitted by the clutch 4 to the sizing flat roller 353. On the flat roller shaft 352 between the two flat roller seats 351, the sizing flat roller 353 is fixedly installed by key connection. A connecting frame 330 is fixedly arranged at the top of the upper flat roller seat 351, and a pin 331 is arranged on the connecting frame 330. Through the pin 331 and the connecting frame 330, it can be connected to the adjusting assembly 32; a support block 363 is arranged at the bottom of the lower flat roller seat 351, and the support block 363 is used to stably support the flat roller module.

[0032] The side roller seat 362 of the side roller module is slidably connected to the mounting frame 31, and a side roller box 359 and a side roller box 354 are arranged on the side roller seat 362. The side roller box 359 is slidably connected to the side roller seat 362 through a slider guide rail, and a sizing side roller 360 is rotatably arranged on the side roller box 359 through a bearing. The side roller box 359 and the side roller box 354 are fixedly connected as a whole, and a side roller worm gear 355 and a side roller worm 356 are arranged in the side roller box 354 and are meshed with each other. An adjusting screw 361 is arranged through the side roller worm gear 355, and the adjusting screw 361 is mutually matched with the side roller worm gear 355 through a screw pair. One end of the adjusting screw 361 passes through the side roller box 354 and is fixedly connected to the side roller box 359. An adjusting motor 357 installed on the side roller box 354 has its output end connected to the end of the side roller worm 356. When the adjusting motor 357 drives the side roller worm 356 to rotate, the adjusting screw 361 is driven to move by the side roller worm gear 355, and then the side roller box 359 is pushed to slide along the side roller seat 362, realizing precise adjustment of the position of the sizing side roller 360.

[0033] The adjustment assembly 32 is composed of two adjustment boxes 321. The two adjustment boxes 321 are fixedly connected by a connecting rod 322, enhancing stability. Inside the adjustment box 321, there are a lifting worm gear and a lifting worm that mesh with each other. The lifting worms on the two adjustment boxes 321 are connected by a synchronizing shaft 323 to ensure synchronous adjustment on both sides and ensure action consistency. A lifting screw rod 325 penetrates through the lifting worm gear. The lifting screw rod 325 is matched with the lifting worm gear through screw drive. One end of the lifting screw rod 325 is provided with a clamping groove 326, and the clamping groove 326 is matched with a pin 331 on the connecting frame 330 of the flat roll module. The connecting frame 330 and the lifting screw rod 325 are connected by the cooperation of the pin 331 and the clamping groove 326, and the connection form of the cooperation between the pin 331 and the clamping groove 326 is simple to operate. Each adjustment box 321 is also provided with a connecting groove 324 for connecting with the mounting frame 31.

[0034] A lifting protection tube 329 is fixed on the adjustment box 321. When the lifting screw rod 325 moves up to the limit position, the lifting screw rod 325 will enter the lifting protection tube 329, and the lifting protection tube 329 protects the lifting screw rod 325. Similarly, a side roll protection tube 358 is installed on the side roll box 354, and the side roll protection tube 358 is used to protect the adjustment screw rod 361.

[0035] The permanent magnets 43 in the clutch 4 are made of neodymium iron boron magnets, and the number of them is an integer multiple of two. A number of permanent magnets 43 are arranged in a circular shape on the driving disk 41 and the driven disk 42 according to the Halbach array. This arrangement makes the magnetic field lines concentrate on the opposite surfaces of the driving disk 41 and the driven disk 42, enhancing the magnetic coupling strength and improving the power transmission efficiency.

[0036] A connecting bolt 311 is hingedly arranged on the mounting frame 31. The connecting bolt 311 is matched with the connecting groove 324 on the adjustment box 321. The adjustment box 321 and the mounting frame 31 are connected by the cooperation of the connecting groove 324 and the connecting bolt 311, realizing the detachable fixation of the adjustment assembly 32 on the mounting frame 31, facilitating the maintenance of the equipment and the replacement of the adjustment assembly 32.

[0037] The transmission shaft 27 is connected to the output end of the driving mechanism 1 through a universal joint coupling 28. The driving mechanism 1 includes a driving motor 12 and a speed reducer 13 installed on the base 11. The output end of the driving motor 12 is connected to the input end of the speed reducer 13. The output end of the speed reducer 13 is connected to the transmission shaft 27 through a universal joint coupling 28. The universal joint coupling 28 can compensate for the angular deviation and axial displacement between the transmission shaft 27 and the output shaft of the speed reducer 13. Even if there are minor vibrations or installation errors during the operation of the equipment, it can ensure that the power of the driving motor 12 is stably and efficiently transmitted to the transmission shaft 27 through the speed reducer 13, and then drive the sizing mechanism 3 to work.

[0038] Working process of this embodiment: When the shafting needs to be replaced, first assemble the new pressure roller assembly 35 to be replaced. During assembly, stack the two flat roller modules and the two side roller modules, then pass the connecting screw 365 through the connecting blocks 364 on each module, and adjust the positions of each module by rotating the nuts on the connecting screw 365. After the adjustment is completed, fix them with nuts. Then drive the side roller worm 356 to rotate through the adjusting motor 357, drive the side roller worm gear 355 to rotate through the side roller worm 356, and use the screw pair formed by the cooperation of the side roller worm gear 355 and the adjusting screw 361 to drive the adjusting screw 361 to move, and then adjust the position of the sizing side roller 360 by pushing the side roller box 359 to move. After the adjustment is completed, the assembly of the new pressure roller assembly 35 is completed; Then pull out the pin 331 in the connecting frame 330 of the old pressure roller assembly 35 on the mounting frame 31, separate the lifting screw 325 from the connecting frame 330, and then loosen the connecting bolt 311 on the mounting frame 31 and remove it from the connecting groove 324. At this time, the connection between the adjusting assembly 32 and the mounting frame 31 and the old pressure roller assembly 35 is completely disconnected. Then use the hoisting equipment to first lift the adjusting assembly 32 from the top of the mounting frame 31, and then lift the old pressure roller assembly 35 out of the mounting frame 31. Since the old pressure roller assembly 35 realizes power transmission through the driven disk 42 and the driving disk 41 on the transmission shaft 27, but the driving disk 41 and the driven disk 42 are not directly connected, removing the old pressure roller assembly 35 from the mounting frame 31 will not affect the transmission mechanism 2; After the old pressure roller assembly 35 is removed from the mounting frame 31, the driven disk 42 needs to be removed from the old pressure roller assembly 35, and the removed driven disk 42 is installed at the end of the flat roller shaft 352 of the new pressure roller assembly 35. Then hoist the new pressure roller assembly 35 onto the mounting frame 31. After the new pressure roller assembly 35 is hoisted, hoist the removed adjusting assembly 32 back to the top of the mounting frame 31. After the adjusting assembly 32 is hoisted to the top of the mounting frame 31, insert the connecting bolt 311 back into the connecting groove 324 and tighten it to fix the adjusting assembly 32 to the top of the mounting frame 31. After the adjusting assembly 32 is fixed to the mounting frame 31, adjust the length of the lifting screw 325 so that the lifting screw 325 extends to be able to insert into the connecting frame 330. Finally, insert the pin 331 back to connect the new pressure roller assembly 35 and the adjusting assembly 32; After completing the connection of the adjustment component 32 and the new pressure roller component 35, use an external driving device to drive the adjustment worm 328 to rotate. The meshing of the adjustment worm 328 and the adjustment worm gear 327 drives the adjustment worm gear 327 to rotate. The adjustment worm gear 327 drives the lifting screw 325 to move upward through the screw pair connected with the lifting screw 325. When the lifting screw 325 moves upward, it drives the new pressure roller component 35 to move upward. When the position of the new pressure roller component 35 can match the adjacent equipment, stop rotating the adjustment worm 328, and then adjust the height of the bottom support block 363 of the new pressure roller component 35 to support the pressure roller component 35, reducing the pressure on the adjustment component 32; After the position of the new pressure roller component 35 is adjusted, adjust the position of the sliding seat 22 on the transmission component. The upper adjustment cylinder 23 can drive the upper sliding seat 22 to move on the fixed frame 21, and the lower adjustment cylinder 24 can drive the lower sliding seat 22 to move on the fixed frame 21. After the sliding seat 22 moves, the transmission shaft 27 connected to the sliding seat 22 will move synchronously, driving the driving disk 41 at the end of the transmission shaft 27 to be coaxially aligned with the driven disk 42 at the end of the flat roller shaft 352 of the new pressure roller component 35 to complete the replacement.

[0039] It should be noted that, since the farther the distance between the permanent magnets 43, the greater the loss of magnetic force and the smaller the transmitted torque, in order to ensure the magnitude of the torque, the assembly spacing between the driving disk 41 and the driven disk 42 does not exceed 2 mm.

[0040] The above has described in detail an embodiment of the present invention, but the content is only the preferred embodiment of the present invention and cannot be considered as limiting the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the application of the present invention shall still fall within the scope covered by the patent of the present invention.

Claims

1. The shafting structure of a roll forming production line, characterized in that: It includes a transmission mechanism (2) and a sizing mechanism (3). The transmission mechanism (2) is connected to the sizing mechanism (3) through a clutch (4). The transmission mechanism (2) includes a fixed frame (21). A sliding seat (22) and an adjusting cylinder are arranged on the fixed frame (21). The sliding seat (22) is slidably connected to the fixed frame (21). The output end of the adjusting cylinder is connected to the sliding seat (22) and is used to drive the sliding seat (22) to move on the fixed frame (21). A transmission shaft (27) penetrates through the sliding seat (22). The sizing mechanism (3) includes a mounting frame (31). An adjusting component (32) is detachably arranged at the top of the mounting frame (31). A pressure roller component (35) is slidably arranged on the mounting frame (31) below the adjusting component (32). And the output end of the adjusting component (32) is connected to the pressure roller component (35) and is used to drive the pressure roller component (35) to move on the mounting frame (31). The clutch (4) includes a driving disc (41) and a driven disc (42). The driving disc (41) is fixedly arranged at one end of the transmission shaft (27). The driven disc (42) is connected to the pressure roller component (35). And the driving disc (41) and the driven disc (42) are opposite in position. A plurality of permanent magnets (43) are arranged on the opposite surfaces of the driving disc (41) and the driven disc (42). And the arrangement forms of the permanent magnets (43) on the driving disc (41) and the driven disc (42) are the same.

2. The shafting structure of a roll forming production line according to claim 1, characterized in that: The pressure roller component (35) includes two flat roller modules and two side roller modules. The two side roller modules are located between the two flat roller modules. And the output ends of the two side roller modules are opposite. A connecting block (364) is fixedly arranged on each of the flat roller modules and the side roller modules. And the connecting blocks (364) on the two flat roller modules and the two side roller modules are connected through a connecting screw (365).

3. The shafting structure of a roll forming production line according to claim 1, characterized in that: The number of the sliding seat (22) and the adjusting cylinder on the fixed frame (21) is two. The two sliding seats (22) are arranged vertically. The upper adjusting cylinder (23) is connected to the upper sliding seat (22). The upper adjusting cylinder (23) is fixedly connected to the fixed frame (21). The lower adjusting cylinder (24) is connected to the lower sliding seat (22). The lower adjusting cylinder (24) is hinged to the fixed frame (21) through a rotating seat (25). The output end of the lower adjusting cylinder (24) is hinged to the lower sliding seat (22) through a connecting seat (26). And the distance between the rotating seat (25) and the connecting seat (26) does not exceed the length of the lower adjusting cylinder (24).

4. The shafting structure of a roll forming production line according to claim 2, characterized in that: The flat roll module includes two flat roll seats (351) slidably arranged on the mounting frame (31). A flat roll shaft (352) is rotatably arranged between the two flat roll seats (351). One end of the flat roll shaft (352) is connected to one of the flat roll seats (351), and the other end passes through the other flat roll seat (351) and is fixedly connected to the driven disk (42). A sizing flat roll (353) is fixedly arranged on the flat roll shaft (352) between the two flat roll seats (351). A connecting frame (330) is also fixedly arranged on the top of the upper flat roll seat (351). A pin (331) is arranged on the connecting frame (330). A support block (363) is arranged at the bottom of the lower flat roll seat (351).

5. The shafting structure of a roll forming production line according to claim 2, characterized in that: The side roll module includes a side roll seat (362) slidably connected to the mounting frame (31). A side roll box (359) and a side roll case (354) are arranged on the side roll seat (362). The side roll box (359) is slidably connected to the side roll seat (362), and a sizing side roll (360) is rotatably arranged on the side roll box (359). The side roll box (359) is fixedly connected to the side roll case (354). A side roll worm gear (355) and a side roll worm (356) are arranged in the side roll case (354). The side roll worm (356) meshes with the side roll worm gear (355). An adjusting screw (361) also passes through the side roll worm gear (355). The adjusting screw (361) cooperates with the side roll worm gear (355). One end of the adjusting screw (361) passes out of the side roll case (354) and is fixedly connected to the side roll box (359). An adjusting motor (357) is also arranged on the side roll case (354). The output end of the adjusting motor (357) is connected to the side roll worm (356).

6. The shafting structure of a roll forming production line according to claim 4, characterized in that: The adjusting assembly (32) includes two adjusting boxes (321). The two adjusting boxes (321) are fixedly connected by a connecting rod (322). An elevating worm gear and an elevating worm that mesh with each other are arranged in the adjusting box (321). The elevating worms on the two adjusting boxes (321) are connected by a synchronizing shaft (323). An elevating screw (325) passes through the elevating worm gear. The elevating screw (325) matches the elevating worm gear. One end of the elevating screw (325) is provided with a card slot (326). The card slot (326) matches the pin (331). The connecting frame (330) and the elevating screw (325) are connected by the cooperation of the pin (331) and the card slot (326). A connecting groove (324) is also arranged on each adjusting box (321).

7. The shafting structure of a roll forming production line according to claim 1, characterized in that: The permanent magnet (43) is a neodymium iron boron magnet, and the number is an integer multiple of three. A number of permanent magnets (43) are arranged in a circular Halbach array on the driving disk (41) and the driven disk (42).

8. The shafting structure of a roll forming production line according to claim 6, characterized in that: A connecting bolt (311) is hinged on the mounting bracket (31). The connecting bolt (311) is matched with the connecting groove (324). The adjusting box (321) and the mounting bracket (31) are connected by the cooperation of the connecting groove (324) and the connecting bolt (311).

9. The shafting structure of a roll forming production line according to claim 1, characterized in that: The transmission shaft (27) is connected to the output end of the driving mechanism (1) through a universal joint coupling (28).

10. A method for replacing the shafting structure of a roll forming production line, which is used to replace the shafting of the roll forming production line according to any one of claims 1-9, characterized in that It includes the following steps: S1: Assemble the new pressure roller assembly to be replaced, fix it after adjusting the distance between the sizing flat roller and the sizing side roller; S2: Pull out the pin to separate the adjusting assembly from the pressure roller assembly, then loosen the connecting bolt and remove it from the connecting groove, and use the hoisting equipment to hoist the adjusting assembly and the old pressure roller assembly out of the mounting bracket in sequence; S3: Remove the driven disk on the old pressure roller assembly and install it on the new pressure roller assembly. Then, use the hoisting equipment to hoist the new pressure roller assembly onto the mounting bracket, and then hoist the adjusting assembly onto the mounting bracket; S4: Fix the adjusting assembly and the mounting bracket through the connection of the connecting bolt and the connecting groove, adjust the position of the lifting screw rod so that the end of the lifting screw rod is inserted into the connecting frame, and then insert the pin into the connecting frame to connect the adjusting assembly with the new pressure roller assembly; S5: Adjust the position of the new pressure roller assembly through the lifting screw rod. After the position of the new pressure roller assembly is adjusted, use the adjusting cylinder to adjust the position of the sliding seat so that the driving disk on the transmission shaft is coaxial with the driven disk on the new pressure roller assembly.

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