Papermaking cantilever beam magnetic suspension device

Abstract

A magnetic suspension device for a papermaking cantilever beam relates to the technical field of paper machines and comprises electromagnets mounted on an upper cantilever beam and a lower cantilever beam, as well as a detachable supporting device and a detachable guide rail frame which are matched with each other, the detachable supporting device comprises a moving frame, a supporting plate which is installed on the moving frame in a sliding mode and intermittently abuts against the upper cantilever beam, an upper clamping rod which is installed on the supporting plate in a rotating mode and intermittently clamps the upper cantilever beam, and a lower clamping rod which is installed on the moving frame in a rotating mode and intermittently clamps the lower cantilever beam. A guide roller is rotationally mounted on the moving frame; the detachable guide rail frame comprises a mounting frame, a guide rail fixedly mounted on the mounting frame, a vacuum chuck which is mounted on the mounting frame in a sliding manner and intermittently adsorbs the lower cantilever beam, and a guide driving rod which is mounted on the mounting frame and intermittently drives the guide roller to move; the guide roller intermittently enters the guide rail; the detachable supporting device and the detachable guide rail frame are both made of non-magnetic materials.

Description

Technical Field

[0001] The invention relates to the technical field of paper machines, in particular to a papermaking cantilever beam magnetic suspension device. Background Art

[0002] In the current large-scale paper machine structure, the forming mesh or felt cloth is usually set in the frame. Due to the obstruction of the column frame, when the operator needs to replace the forming mesh or felt cloth, the current practice is: the operator props up the two cantilever beams through a jack or other supporting mechanism, and removes the support block placed on one side of the column frame, and then resets the jack or other supporting mechanism and removes it. The cantilever beam is in a balanced state under the action of the pull rod and the column frame on the other side, and then the operator replaces the forming mesh or felt cloth through the gap where the support block is placed.

[0003] However, the above operation has the following disadvantages: 1. Because the operator needs to manually remove the support block before replacing the forming net or felt, and the replacement of the forming net or felt requires the removal of multiple support blocks at the same time, which not only greatly reduces the work efficiency, but also increases the labor intensity and risk factor of the operator; 2. At present, this cantilever beam structure is prone to bending, deformation and twisting of the cantilever beam when the frame is pulled up. In order to meet the rigidity of the cantilever beam, it is necessary to increase the outer dimensions of the cantilever beam and the thickness of the panel steel plate, which will cause the weight of the entire frame to be too large and waste materials.

[0004] Comparative Document 1: Patent No. 202221680401.2, Chinese utility model patent entitled A paper machine structure with a cantilever beam for changing blankets, discloses the following scheme: including a paper machine body and a cantilever beam support assembly, the paper machine body is mounted on the cantilever beam support assembly, the cantilever beam support assembly includes a first column and a second column fixed to the ground, a first cantilever beam frame provided on the first column, and a second cantilever beam frame provided on the upper end of the first cantilever beam frame, and the upper and lower sides of the second column are provided with a first pull-out block and a second pull-out block for replacing blankets. When the operator replaces the blanket, because the pressing frame of the cantilever beam structure has an additional pull rod as a locking fulcrum, the two pull-out blocks on the cantilever beam frame can be directly removed, and the entire pressing frame will not be affected. The blanket can be quickly pulled in and out of the two gaps, which is very convenient. It usually takes only two hours for a skilled operator to complete the entire blanket replacement work, which improves work efficiency.

[0005] Comparative Document 2: A Chinese utility model patent with patent number 202120744771.7 and name "A cantilever beam frame" discloses the following scheme: comprising a beam frame, the side walls of which are provided with a plurality of first reinforcing ribs and second reinforcing ribs, one end of the beam frame is provided with a pull rod hole, the top and bottom ends of the beam frame are provided with reinforcing pieces, and the interior of the beam frame is provided with a reinforcement component, the reinforcement component comprising a reinforcement tube, a support bar and a mounting column; in the technical scheme provided by the utility model, the first reinforcing ribs and the second reinforcing ribs are arranged on the side walls of the beam frame, and the reinforcement piece is used to reinforce the beam frame, and then the internal strength of the beam frame is improved by installing the reinforcement component inside the beam frame, thereby improving the rigidity of the cantilever beam frame, preventing distortion, and improving the service life of the cantilever beam. At the same time, the stability of the papermaking machine is also improved to meet the use requirements of high-speed paper machines.

[0006] However, neither D1 nor D2 solves the following problem: 1. Manually remove the support block before replacing the forming mesh or felt; 2. The cantilever beam needs to be in a balanced state under the action of the pull rod and the column frame on the other side, and it cannot solve the problem of the cantilever beam's external dimensions and the panel steel plate thickness being too large.

[0007] Therefore, it is necessary to invent a papermaking cantilever beam device that can automatically remove the support block and does not need to be tightened by a pull rod. Summary of the invention

[0008] In view of the above problems, the present invention proposes a papermaking cantilever beam magnetic suspension device, and the technical solution adopted is as follows: A papermaking cantilever beam magnetic suspension device comprises an electromagnet installed on an upper cantilever beam and a lower cantilever beam, and a detachable supporting device and a detachable guide rail frame which cooperate with each other; The detachable support device includes a moving frame, a support plate slidably mounted on the moving frame and intermittently abutting against the upper cantilever beam, an upper clamping rod rotatably mounted on the support plate and intermittently clamping the upper cantilever beam, and a lower clamping rod rotatably mounted on the moving frame and intermittently clamping the lower cantilever beam; a guide roller is rotatably mounted on the moving frame; The detachable guide rail frame includes a mounting frame, a guide rail fixedly mounted on the mounting frame, a vacuum suction cup slidably mounted on the mounting frame and intermittently adsorbing the lower cantilever beam, and a guide driving rod mounted on the mounting frame and intermittently driving the guide roller to move; the guide roller intermittently enters the guide rail; The detachable support device and the detachable guide rail frame are both made of non-magnetic materials.

[0009] Furthermore, the upper clamping rod is driven to rotate by a first rotating motor fixedly mounted on the support plate; and the lower clamping rod is driven to rotate by a second rotating motor fixedly mounted on the moving frame.

[0010] Furthermore, a screw assembly is provided between the support plate and the movable frame, and the screw assembly includes a threaded rod rotatably mounted on the movable frame, and a threaded sleeve threadedly mounted on the corresponding threaded rod and fixedly connected to the support plate; the threaded rod is driven to rotate by the support motor.

[0011] Furthermore, the guide drive rod is rotatably mounted on the mounting frame, and a limiting slide groove is provided on the guide drive rod corresponding to the guide roller; the guide roller intermittently enters the corresponding limiting slide groove; the guide drive rod is driven to rotate by a guide motor fixedly mounted on the mounting frame.

[0012] Furthermore, the vacuum suction cup is driven to move by a servo cylinder fixedly mounted on the mounting frame.

[0013] Furthermore, the detachable guide rail frame also includes a servo bidirectional lead screw; two mounting frames are symmetrically and slidably mounted on the servo bidirectional lead screw.

[0014] Furthermore, it also includes a maintenance support device, which includes a flip plate rotatably mounted on the lower cantilever beam, a sliding frame slidably mounted on the flip plate, a connecting frame slidably mounted on the flip plate, and a support roller rotatably mounted on the connecting frame and intermittently connected to the upper cantilever beam.

[0015] Furthermore, the flip plate is driven to rotate by a flip motor fixedly mounted on the lower cantilever beam; a limit pin is provided on the flip plate, and a limit slide groove 2 is provided on the lower cantilever beam corresponding to the limit pin, and the limit pin is slidably and rotatably mounted in the limit slide groove 2.

[0016] Furthermore, the sliding frame is driven to slide by a servo lead screw installed on the flip plate.

[0017] Furthermore, the connecting frame is driven to move by a hydraulic cylinder fixedly mounted on the sliding frame.

[0018] Since the present invention adopts the above technical solution, the present invention has the following advantages: 1. The present invention adopts the coordinated design of an electromagnet, a detachable support device and a detachable guide rail frame. Before replacing the forming net or the felt cloth, it is not necessary for the staff to manually remove the support block. The detachable support device can automatically make way for the opening between the upper cantilever beam and the lower cantilever beam, and the upper cantilever beam and the lower cantilever beam are supported by the magnetic levitation effect of the electromagnet. The upper and lower cantilever beams do not need excessive external dimensions and panel steel plate thickness, and can maintain balance under the action of magnetic levitation and the column on the other side, thereby saving materials.

[0019] 2. The detachable support device and detachable guide rail frame of the present invention are very easy to install and disassemble, which reduces maintenance time, effectively improves maintenance efficiency, and avoids affecting normal production.

[0020] 3. The present invention is also provided with a maintenance support device. When repairing the electromagnet, the detachable support device needs to leave an opening between the upper cantilever beam and the lower cantilever beam. The maintenance support device can provide temporary support between the upper cantilever beam and the lower cantilever beam, making it convenient for maintenance personnel to repair the electromagnet. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1-Figure 3 It is a schematic diagram of the overall structure of the maintenance support device of the present invention after being flipped downward.

[0022] Figure 4-Figure 5 It is a schematic diagram of the overall structure of the maintenance support device of the present invention located on the lower cantilever beam.

[0023] Figure 6-Figure 10 It is a schematic diagram of the assembly structure of the detachable supporting device and the detachable guide rail frame of the present invention.

[0024] Fig.11 It is a schematic structural diagram of the detachable supporting device of the present invention.

[0025] Fig.12 It is a schematic structural diagram of the detachable guide rail frame of the present invention.

[0026] Fig.13 It is a schematic structural diagram of the maintenance support device of the present invention.

[0027] Fig.14 The figure is a schematic diagram of the assembly structure of the upper cantilever beam, the lower cantilever beam and the column of the present invention.

[0028] Figure 15-16 It is a structural schematic diagram of the lower cantilever beam of the present invention.

[0029] Fig.17 It is a connection diagram of the control terminal and the electrical component of the present invention.

[0030] Figure Number: 1- Electromagnet; 2-detachable support device; 201-movable frame (2011-guide roller); 202-rotating motor 1; 203-upper clamping rod; 204-rotating motor 2; 205-lower clamping rod; 206-screw assembly; 207-support plate; 3-detachable guide rail frame; 301-servo bidirectional lead screw; 302-mounting frame (3021-lifting plate); 303-guide rail; 304-vacuum suction cup; 305-servo cylinder; 306-guide motor; 307-guide drive rod (3071-limiting slide groove 1); 4-maintenance support device; 401-flip plate (4011-flip axis; 4012-limit pin); 402-servo screw; 403-sliding frame; 404-hydraulic cylinder; 405-connecting frame; 406-support roller; 407-flip motor; 5-Control terminal; 6-upper cantilever beam; 601-docking station; 7-lower cantilever beam; 701-mounting platform; 702-limiting slide groove 2; 8- Pillar. DETAILED DESCRIPTION

[0031] The technical solution of the present invention is further specifically described below by way of embodiments and in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0032] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "up", "down", "in", "out", "front", "back", etc. are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. Example

[0033] like Fig.14 As shown, in the current large-scale paper machine structure, one end of the upper cantilever beam 6 and the lower cantilever beam 7 are fixedly connected by a column 8, and the forming net or felt cloth usually passes through the space between the upper cantilever beam 6 and the lower cantilever beam 7. This embodiment is used to support the other end of the upper cantilever beam 6 and the lower cantilever beam 7.

[0034] like Figure 1-Figure 5 and Figure 14-17As shown, a papermaking cantilever beam magnetic suspension device comprises an electromagnet 1, a detachable support device 2, a detachable guide rail frame 3, a maintenance support device 4 and a control end 5; a mounting platform 701 is fixedly provided on the end side of the lower cantilever beam 7, a docking platform 601 is fixedly provided on the end side of the upper cantilever beam 6, four groups of electromagnets 1 are correspondingly provided on the mounting platform 701 and the docking platform 601, and two electromagnets 1 in the same group are fixedly installed on the mounting platform 701 and the docking platform 601 respectively; the detachable support device 2 and the detachable guide rail frame 3 cooperate with each other, the detachable support device 2 is detachably supported between the mounting platform 701 and the docking platform 601, and the detachable guide rail frame 3 is detachably installed on the mounting frame 701; the maintenance support device 4 is arranged on the lower cantilever beam 7, and is used for temporarily supporting between the upper cantilever beam 6 and the lower cantilever beam 7 when the electromagnet 1 is repaired; the control end 5 is used for controlling the operation of the papermaking cantilever beam magnetic suspension device.

[0035] like Figure 6-Figure 11 As shown, the detachable support device 2 includes a moving frame 201, a rotating motor 1 202, an upper clamping rod 203, a rotating motor 204, a lower clamping rod 205, a screw assembly 206 and a support plate 207; the moving frame 201 is rectangular, and guide rollers 2011 are rotatably installed on its four corners; the screw assembly 206 is composed of a threaded rod and a threaded sleeve, and is provided with four groups, which are respectively arranged at the four corners of the moving frame 201; the threaded rod is vertically arranged and rotatably installed on the moving frame 201, and the threaded sleeve is threadedly installed on the corresponding threaded rod and fixedly connected to the support plate 207; the four threaded rods are driven to rotate by the same support motor, and the support motor is fixedly installed on the moving frame 201, and its output end is synchronously connected to the four threaded rods through a transmission gear, a transmission wheel and a transmission belt, so that the four threaded sleeves are synchronously lifted and lowered, thereby driving the support plate 207 to lift and lower; a pressure sensor 1 electrically connected to the control end 5 is provided on the upper end surface of the support plate 207; A pair of upper clamping rods 203 are provided, and are symmetrically arranged at the left and right ends of the support plate 207; the bottom end of each upper clamping rod 203 is rotatably mounted on the support plate 207 through a rotating shaft, and a short rod intermittently hooked on the docking platform 601 is provided at the top, and the upper clamping rod 203 is L-shaped as a whole; the rotating shafts of the two upper clamping rods 203 are synchronously connected through a transmission wheel, a transmission gear and a transmission belt; a rotating motor 202 is fixedly installed on the support plate 207, and its output end is coaxially fixedly connected with one of the rotating shafts; the rotating motor 202 can drive the two upper clamping rods 203 to rotate synchronously; A pair of lower clamping rods 205 are provided, and are symmetrically arranged at the front and rear ends of the mobile frame 201; the top end of each lower clamping rod 205 is rotatably mounted on the mobile frame 201 through a second rotating shaft, and the bottom end is provided with a clamping block for intermittently squeezing the mounting platform 701, and the lower clamping rod 205 is L-shaped as a whole; the second rotating shafts of the two lower clamping rods 205 are synchronously connected through a transmission wheel, a transmission gear and a transmission belt; the second rotating motor 204 is fixedly installed on the mobile frame 201, and its output end is coaxially fixedly connected to one of the second rotating shafts; the second rotating motor 204 can drive the two lower clamping rods 205 to rotate synchronously; a pressure sensor 2 electrically connected to the control end 5 is provided on the inner side of the clamping block of the lower clamping rod 205.

[0036] like Figure 6-Figure 10 and Fig.12 As shown, the detachable guide rail frame 3 includes a servo bidirectional screw 301, a mounting frame 302, a guide rail 303, a vacuum suction cup 304, a servo cylinder 305, a guide motor 306 and a guide drive rod 307; two mounting frames 302 are symmetrically slidably mounted on the servo bidirectional screw 301; a lifting plate 3021 is vertically slidably mounted on each mounting frame 302, and three servo cylinders 305 are vertically fixedly mounted on the mounting frame 302, and the telescopic ends of the servo cylinders 305 are fixedly connected to the lifting plates 3021; ​​three vertically upward vacuum suction cups 304 are fixedly mounted on each lifting plate 3021; ​​in this embodiment, the vacuum suction cups 304 are connected to the external pneumatic vacuum pump valve system through an air pipe; A guide rail 303 is fixedly mounted on each mounting frame 302, and the guide rail 303 includes a horizontal section and an inclined section that are interconnected; the two guide rails 303 correspond to the guide rollers 2011 on the left and right sides of the moving frame 201, respectively, and the guide rollers 2011 can be inserted into the corresponding guide rails 303 from the side; Each mounting frame 302 is provided with a guide drive rod 307; the guide drive rod 307 is V-shaped as a whole, and its central turning point is rotatably mounted on the mounting frame 302 through a rotating shaft three, and a limiting slide groove 3071 is provided on the two branch rods, and the two guide rollers 2011 on the same side of the guide drive rod 307 can be respectively inserted into the two limiting slide grooves 3071 from the side in an interlaced manner; the guide drive rod 307 is driven to rotate by a guide motor 306, and the guide motor 306 is fixedly mounted on the mounting frame 302, and its output end is coaxially fixedly connected with the rotating shaft three of the corresponding guide drive rod 307.

[0037] like Figure 13-Figure 16As shown, the maintenance support device 4 includes a flip plate 401, a servo screw 402, a sliding frame 403, a hydraulic cylinder 404, a connecting frame 405, a supporting roller 406 and a flip motor 407; a flip shaft 4011 is horizontally fixed on one end of the flip plate 401, and the flip shaft 4011 is rotatably mounted on the lower cantilever beam 7; there are two flip motors 407, both of which are fixedly mounted on the lower cantilever beam 7, and the two flip motors 407 are arranged at both ends of the flip shaft 4011, and the output end is coaxially fixedly connected with the end side of the flip shaft 4011; a limit pin 4012 is fixedly mounted on the flip plate 401 at a position outside the flip shaft 4011, and an arc-shaped limit slide groove 2 702 is fixedly mounted on the lower cantilever beam 7 corresponding to the limit pin 4012, and the limit pin 4012 is slidably and rotatably mounted in the corresponding limit slide groove 2 702; The servo screw 402 is horizontally arranged on the flip plate 401, and the sliding frame 403 is horizontally slidably installed on the flip plate 401 and is threadedly connected to the servo screw 402; two hydraulic cylinders 404 are fixedly installed on the sliding frame 403, and the connecting frame 405 is fixedly installed on the telescopic end of the hydraulic cylinder 404; two supporting rollers 406 are rotatably installed on the connecting frame 405; in order to play a better supporting role, limit blocks are fixedly provided on both ends of the connecting frame 405, so that the connecting frame 405 is U-shaped as a whole, and the two limit blocks can be limited on the left and right sides of the upper cantilever beam 6; When the forming wire or felt is located in the space between the upper cantilever beam 6 and the lower cantilever beam 7 , the turning plate 401 is located outside the lower cantilever beam 7 .

[0038] In this embodiment, the support motor, the rotating motor 1 202, the rotating motor 204 and the flip motor 407 are all servo motors, and the detachable support device 2 and the detachable guide rail frame 3 are all made of non-magnetic materials, such as austenitic non-magnetic stainless steel or non-magnetic structural steel.

[0039] like Fig.17 As shown, the control end 5 includes a main controller, an interactive switch, an information transmission module, a storage module and a power module, and the main controller is electrically connected to the interactive switch, the information transmission module, the storage module, the power module, the electromagnet 1, the rotating motor 202, the rotating motor 204, the support motor, the pressure sensor 1, the pressure sensor 2, the servo bidirectional screw 301, the vacuum suction cup 304, the servo cylinder 305, the guide motor 306, the servo screw 402, the hydraulic cylinder 404, and the flip motor 407; the main controller is used to control the operation of the entire papermaking cantilever beam magnetic suspension device; the interactive switch is used to control the opening and closing of each electrical component; the information transmission module is used for information transmission between the main controller and each electrical component; the power module is used to provide a stable power supply for the control end 5; the storage module is used to store the operation information data of the entire papermaking cantilever beam magnetic suspension device.

[0040] The working principle of this embodiment is as follows: 1. Installation and removal of the detachable support device 2 and the detachable guide rail frame 3: First, the mobile frame 201 is placed on the mounting table 701; then the rotating motor 204 is started, the two lower clamping rods 205 rotate downward, and the clamping blocks of the lower clamping rods 205 tightly squeeze the mounting table 701, and the pressure sensor 2 transmits the extrusion pressure signal between the clamping blocks of the lower clamping rods 205 and the mounting table 701 to the control terminal 5. After the extrusion pressure reaches the set value, the output end of the rotating motor 204 stops rotating, and the two lower clamping rods 205 clamp the mounting table 701, so that the mobile frame 201 is fixed on the mounting table 701; then the supporting motor is started to drive the threaded sleeves of the four sets of lead screw assemblies 206 to move upward synchronously The support plate 207 moves upward and presses against the docking platform 601, and the pressure sensor 1 transmits the extrusion pressure signal between the support plate 207 and the docking platform 601 to the control end 5. After the extrusion pressure reaches the set value, the output end of the support motor stops rotating, and the support plate 207 stops moving; finally, the rotating motor 1 202 is started, and the two upper clamping rods 203 rotate upward, and the short rods of the upper clamping rods 203 hook the docking platform 601, and the two upper clamping rods 203 clamp the docking platform 601, so that the support plate 207 is fixed on the docking platform 601; in this way, the detachable support device 2 is installed and starts to play a supporting role.

[0041] After the installation of the detachable support device 2 is completed, the staff installs the detachable guide rail frame 3 so that the lower cantilever beam 7 passes through the middle of the two mounting frames 302, and the guide roller 2011 on the movable frame 201 is aligned with the horizontal part on the corresponding guide rail 303 and the limiting slide groove 3071 on the corresponding guide drive rod 307; then the servo bidirectional screw 301 is started, the two mounting frames 302 approach each other, the vacuum suction cup 304 moves to the bottom of the lower cantilever beam 7, and the guide roller 2011 enters the horizontal part on the corresponding guide rail 303 and the limiting slide groove 3071 on the corresponding guide drive rod 307; finally, the servo cylinder 305 is started to drive the lifting plate 3021 to move upward, the vacuum suction cup 304 contacts the lower end surface of the lower cantilever beam 7, and the vacuum suction cup 304 is started and adsorbed on the lower cantilever beam 7; in this way, the installation of the detachable guide rail frame 3 is completed.

[0042] When disassembling the detachable support device 2 and the detachable guide rail frame 3, first close the vacuum suction cup 304, start the servo cylinder 305, drive the lifting plate 3021 to move downward, so that the vacuum suction cup 304 is separated from the lower cantilever beam 7; then start the servo bidirectional screw 301, drive the two mounting frames 302 to move away from each other, the guide roller 2011 is separated from the horizontal part on the corresponding guide rail 303 and the limiting slide groove 1 3071 on the corresponding guide drive rod 307, and the staff removes the detachable guide rail frame 3; then start the rotating motor 1 202 and the rotating motor 2 204, the upper clamping rod 203 rotates downward and separates from the docking table 601, and the lower clamping rod 205 rotates upward and separates from the mounting table 701; finally start the supporting motor to make the supporting plate 207 descend and separate from the upper cantilever beam 6, and the staff removes the detachable support device 2; in this way, the detachable support device 2 and the detachable guide rail frame 3 are disassembled, and maintenance and repair can be carried out after disassembly.

[0043] 2. Temporary support when replacing the forming mesh or felt: After the detachable support device 2 and the detachable guide rail frame 3 are installed, when replacing the forming net or felt cloth, first start the electromagnet 1 on the docking table 601 and the mounting table 701, so that the electromagnet 1 on the docking table 601 and the mounting table 701 produces a repulsive effect, and set the current of the electromagnet 1 according to the required load; then start the rotating motor 1 202 and the rotating motor 2 204, the upper clamping rod 203 rotates downward and disengages from the docking table 601, the lower clamping rod 205 rotates upward and disengages from the mounting table 701, and the supporting motor is started to make the supporting plate 207 descend and disengage from the upper cantilever beam 6; finally start the guide motor 306, the guide drive rod 307 rotates, and the guide roller 2011 is moved to move the guide roller 2011 from the horizontal part of the guide rail 303 to the inclined part , the movable frame 201 moves downward along the guide rail 303 to make way for the opening between the docking platform 601 and the mounting platform 701; after the opening is made way, the docking platform 601 and the mounting platform 701 are temporarily supported by the magnetic levitation effect generated by the electromagnet 1, and the staff takes out the forming net or felt cloth to be replaced from the opening, and moves the new forming net or felt cloth through the opening to the space between the upper cantilever beam 6 and the lower cantilever beam 7 to complete the replacement of the forming net or felt cloth; after the replacement is completed, the guide motor 306 is started again, and the guide drive rod 307 rotates in the opposite direction, so that the movable frame 201 returns to the mounting platform 701, the lower clamping rod 205 clamps the mounting platform, the support plate 207 presses against the docking platform 601, the upper clamping rod 203 clamps the docking platform 601, and the detachable support device 2 continues to play a supporting role.

[0044] 3. Temporary support when repairing electromagnet 1: When repairing the electromagnet 1, first start the servo screw 402, the sliding frame 403 moves, and adjust the position of the supporting roller 406 so that the supporting roller 406 can avoid the forming net or felt cloth; then start the flip motor 407, and the flip plate 401 rotates to the lower cantilever beam 7; finally start the hydraulic cylinder 404, the connecting frame 405 moves upward, and the supporting roller 406 is against the lower bottom surface of the upper cantilever beam 6. The two limit blocks can be limited on the left and right sides of the upper cantilever beam 6 to provide temporary support between the upper cantilever beam 6 and the lower cantilever beam 7; After the temporary support begins, the rotating motor 1 202 and the rotating motor 2 204 are started, the upper clamping rod 203 rotates downward and disengages from the docking platform 601, the lower clamping rod 205 rotates upward and disengages from the mounting platform 701, and the supporting motor is started to make the supporting plate 207 descend and disengage from the upper cantilever beam 6; finally, the guide motor 306 is started, the guide driving rod 307 rotates, and the guide roller 2011 is moved to move the guide roller 2011 from the horizontal part of the guide rail 303 to the inclined part, and the mobile frame 201 moves downward along the guide rail 303 to make way for the opening between the docking platform 601 and the mounting platform 701, and the forming net or felt cloth is taken out, and the maintenance personnel repair the electromagnet 1 on the upper cantilever beam 6 and the lower cantilever beam 7; After the maintenance is completed, the forming net or felt cloth is put back to its original position, the movable frame 201 returns to the mounting table 701, the detachable support device 2 starts to support, the hydraulic cylinder 404 drives the connecting frame 405 to move downward, the supporting roller 406 is separated from the upper cantilever beam 6, and the flip motor 407 drives the flip plate 401 to flip downward to the side of the lower cantilever beam 7, and the maintenance support device 4 returns to its original position.

Claims

1. A papermaking cantilever beam magnetic suspension device, characterized in that: It includes an electromagnet installed on an upper cantilever beam and a lower cantilever beam, and a detachable supporting device and a detachable guide rail frame that cooperate with each other; The detachable support device includes a moving frame, a support plate slidably mounted on the moving frame and intermittently abutting against the upper cantilever beam, an upper clamping rod rotatably mounted on the support plate and intermittently clamping the upper cantilever beam, and a lower clamping rod rotatably mounted on the moving frame and intermittently clamping the lower cantilever beam; a guide roller is rotatably mounted on the moving frame; The detachable guide rail frame includes a mounting frame, a guide rail fixedly mounted on the mounting frame, a vacuum suction cup slidably mounted on the mounting frame and intermittently adsorbing the lower cantilever beam, and a guide driving rod mounted on the mounting frame and intermittently driving the guide roller to move; the guide roller intermittently enters the guide rail; The detachable support device and the detachable guide rail frame are both made of non-magnetic materials.

2. A papermaking cantilever beam magnetic suspension device according to claim 1, characterized in that: The upper clamping rod is driven to rotate by a rotating motor 1 fixedly installed on the supporting plate; the lower clamping rod is driven to rotate by a rotating motor 2 fixedly installed on the moving frame.

3. A papermaking cantilever beam magnetic suspension device according to claim 1, characterized in that: A lead screw assembly is provided between the support plate and the moving frame; the lead screw assembly comprises a threaded rod rotatably mounted on the moving frame, and a threaded sleeve threadedly mounted on the corresponding threaded rod and fixedly connected to the support plate; the threaded rod is driven to rotate by a support motor.

4. The papermaking cantilever beam magnetic suspension device according to claim 1, characterized in that: The guide drive rod is rotatably mounted on the mounting frame, and a limiting slide groove is provided on the guide drive rod corresponding to the guide roller; the guide roller intermittently enters the corresponding limiting slide groove; the guide drive rod is driven to rotate by a guide motor fixedly mounted on the mounting frame.

5. The papermaking cantilever beam magnetic suspension device according to claim 1, characterized in that: The vacuum suction cup is driven to move by a servo cylinder fixedly mounted on the mounting frame.

6. The papermaking cantilever beam magnetic suspension device according to claim 1, characterized in that: The detachable guide rail frame also includes a servo bidirectional lead screw; two mounting frames are symmetrically and slidably mounted on the servo bidirectional lead screw.

7. The papermaking cantilever beam magnetic suspension device according to claim 1, characterized in that: It also includes a maintenance support device, which includes a flip plate rotatably mounted on the lower cantilever beam, a sliding frame slidably mounted on the flip plate, a connecting frame slidably mounted on the flip plate, and a support roller rotatably mounted on the connecting frame and intermittently connected to the upper cantilever beam.

8. A papermaking cantilever beam magnetic suspension device according to claim 7, characterized in that: The flip plate is driven to rotate by a flip motor fixedly mounted on the lower cantilever beam; a limit pin is provided on the flip plate, and a second limit slide groove is provided on the lower cantilever beam corresponding to the limit pin, and the limit pin is slidably and rotatably mounted in the second limit slide groove.

9. A papermaking cantilever beam magnetic suspension device according to claim 7, characterized in that: The sliding frame is driven to slide by a servo lead screw installed on the flip plate.

10. The papermaking cantilever beam magnetic suspension device according to claim 7, characterized in that: The connecting frame is driven to move by a hydraulic cylinder fixedly mounted on the sliding frame.

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