Magnetic lifting appliance for marine thin steel plate

Abstract

The magnetic lifting appliance comprises a main beam, a cross beam is arranged on the bottom face of the main beam, the cross beam and the main beam are mutually orthogonally combined, welded and formed, a reinforcing toggle plate is welded to the joint of the cross beam and the main beam, a large lifting lug is fixedly installed on the top face of the main beam, and a small lifting lug is fixedly installed on the bottom face of the main beam. A small lifting lug is fixedly mounted on the bottom surface of the cross beam, the cross beam is connected with a shackle through the small lifting lug, the shackle is connected with a butterfly buckle, the butterfly buckle is connected with a lifting chain, the lifting chain is also connected with a U-shaped seat and a stop lever through the butterfly buckle, and the U-shaped seat and the stop lever are integrally welded and formed. A plurality of cross beams can be distributed on the main beam, so that a steel plate can be uniformly stressed during hoisting, the hoisting deformation of the thin steel plate is reduced, and meanwhile, the thin steel plate is fixed by adopting the permanent magnetic chucks, and the stressed area of the steel plate is larger than that of a traditional chuck, so that the steel plate at a hoisting point can be prevented from being damaged.

Description

Technical Field

[0001] The invention relates to the technical field of shipbuilding, in particular to a magnetic suspension device for a thin steel plate used in a ship. Background Art

[0002] In some ship construction, in order to reduce the weight of the ship structure and lower the center of gravity, 70% of the structure is a thin plate structure (plate thickness 8mm and below). In addition, the aesthetic appearance and deck flatness requirements of this type of ship are higher than those of ordinary ships, so the deformation control of the thin plate structure is extremely important.

[0003] Therefore, when the ship is built in sections, the traditional way to put steel plate parts on the tire is to use a chuck tool to clamp both sides of the steel plate, and then lift it to the manufacturing position by a crane. This method is used for lifting thin plates, and there are problems such as easy deformation of the steel plate and easy damage to the steel plate at the chuck. For this reason, we proposed a magnetic lifting device for ship thin steel plates. Summary of the invention

[0004] The object of the present invention is to provide a magnetic suspension device for ship thin steel plates to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a magnetic lifting device for ship thin steel plates, comprising a main beam, a cross beam is arranged on the bottom surface of the main beam, and the cross beam and the main beam are orthogonally combined and welded to form a shape, a reinforcing bracket is also welded at the connection between the cross beam and the main beam, a large lifting ear is fixedly installed on the top surface of the main beam, a small lifting ear is fixedly installed on the bottom surface of the cross beam, the cross beam is connected to a shackle through the small lifting ear, a butterfly buckle is connected to the shackle, a lifting chain is connected to the butterfly buckle, and the lifting chain is also connected to a U-shaped The U-shaped seat and the baffle rod are welded as one body, and a permanent magnetic suction cup is fixedly installed on the bottom surface of the U-shaped seat. A limit assembly and an adjustment assembly are also arranged on the U-shaped seat; the limit assembly includes a screw and a transmission shaft rotatably arranged on the U-shaped seat, and the limit assembly also includes a clamping plate slidably arranged on the U-shaped seat, and the clamping plate is also threadedly connected with the screw, a second reversing gear is fixedly installed on the transmission shaft, and a first reversing gear is meshedly connected to the second reversing gear, a pulley group is also arranged on the transmission shaft, and the screw is totally provided with a plurality of There are two, one of which is connected to the transmission shaft through a pulley set, and the other is fixedly connected to the first reversing gear, and the size of the first reversing gear is consistent with the size of the second reversing gear; the adjustment component includes a disc-shaped shaft rotatably arranged inside the U-shaped seat, the upper end surface of the disc-shaped shaft is fixedly installed with a main transmission gear, and the lower end surface of the disc-shaped shaft is fixedly installed with a reset torsion spring, the lower end of the reset torsion spring is also fixedly connected to the U-shaped seat, the main transmission gear is meshed with a first rack, and the first rack is meshed with the U-shaped The seat is slidably connected, and the sliding seat is also fixedly installed on the first rack, an auxiliary bearing is arranged on the sliding seat, and the sliding seat is rotatably connected with an active rod through the auxiliary bearing, a friction block is fixedly arranged on the end of the active rod adjacent to the transmission shaft, a connecting shaft is fixedly installed on the top surface of the main transmission gear, a secondary transmission gear is fixedly installed on the upper end of the connecting shaft, a second rack is meshingly connected on the secondary transmission gear, the second rack is slidably connected with the U-shaped seat, and a Z-shaped rod is fixedly installed on the second rack, and a clamping block is fixedly installed on the end of the Z-shaped rod.

[0006] Preferably, the clamping plate is designed as a T-shaped structure, and a through hole for passing the blocking rod is opened on the clamping plate.

[0007] Preferably, there are two clamping plates in total, and the two clamping plates are symmetrically arranged on both sides of the center of the U-shaped seat.

[0008] Preferably, there are two first racks in total, and the two first racks are symmetrically arranged on both sides of the main transmission gear.

[0009] Preferably, the number of the active rods is consistent with the number of the first racks, and the two active rods are also symmetrically arranged on both sides of the center of the U-shaped seat.

[0010] Preferably, the clamping block can contact the transmission shaft, and the contact surface between the clamping block and the transmission shaft is in an arc shape.

[0011] Preferably, a first friction pattern for increasing friction is provided on the outer surface of the transmission shaft adjacent to the clamping block.

[0012] Preferably, a second friction pattern for increasing friction is provided on the side of the friction block adjacent to the transmission shaft.

[0013] Preferably, a knob is fixedly mounted on the end of the active rod passing through the U-shaped seat, and the outer surface of the knob is provided with anti-slip grooves.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. In the present invention, since a plurality of cross beams can be distributed on the main beam, the steel plate can be ensured to be evenly stressed during hoisting, and the hoisting deformation of the thin steel plate can be reduced. At the same time, since a permanent magnetic suction cup is used to fix the thin steel plate, the stress area of ​​the steel plate is larger than that of a traditional chuck, which can avoid damage to the steel plate at the hoisting point.

[0016] 2. The present invention sets up a U-shaped seat on the permanent magnetic suction cup, so that the contact point between the butterfly buckle and the U-shaped seat can be always limited to the center of the U-shaped seat by utilizing structures such as the limit assembly and the adjustment assembly on the U-shaped seat, so as to ensure that in the subsequent lifting process, the pulling force that the U-shaped seat and the permanent magnetic suction cup can be subjected to can be evenly dispersed on these structures, while also ensuring the stability of the entire lifting process. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 This is an exploded view of the splint structure of the present invention;

[0019] Figure 3 It is a first cutaway schematic diagram of the U-shaped seat structure of the present invention;

[0020] Figure 4 This is a schematic diagram of the connection of the reversing gear structure of the present invention;

[0021] Figure 5 It is a second cross-sectional schematic diagram of the U-shaped seat structure of the present invention;

[0022] Figure 6 It is a third cross-sectional schematic diagram of the U-shaped seat structure of the present invention;

[0023] Figure 7 It is a fourth cross-sectional schematic diagram of the U-shaped seat structure of the present invention;

[0024] Figure 8 It is a schematic diagram of the transmission gear structure connection of the present invention.

[0025] In the figure: 1. main beam; 2. cross beam; 3. reinforced elbow plate; 4. large lifting eye; 5. small lifting eye; 6. shackle; 7. lifting chain; 8. butterfly buckle; 9. permanent magnetic suction cup; 10. U-shaped seat; 11. stop rod; 12. limit assembly; 121. clamping plate; 122. screw rod; 123. first reversing gear; 124. second reversing gear; 125. transmission shaft; 126. pulley group; 13. adjustment assembly; 131. knob; 132. active rod; 133. friction block; 134. disc shaft; 135. main transmission gear; 136. first rack; 137. slide seat; 138. reset torsion spring; 139. connecting shaft; 1310. auxiliary transmission gear; 1311. auxiliary bearing; 1312. second rack; 1313. Z-rod; 1314. clamping block. DETAILED DESCRIPTION

[0026] 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.

[0027] See also Figure 1-8 The present invention provides a technical solution: a magnetic lifting device for ship thin steel plates, comprising a main beam 1, a cross beam 2 is arranged on the bottom surface of the main beam 1, and the cross beam 2 and the main beam 1 are welded together orthogonally, a reinforcing bracket 3 is also welded at the connection between the cross beam 2 and the main beam 1, the reinforcing bracket 3 can improve the rigidity of the cross beam 2 and the main beam 1 to meet the actual lifting requirements of the thin steel plates, a large lifting ear 4 is fixedly installed on the top surface of the main beam 1, a small lifting ear 5 is fixedly installed on the bottom surface of the cross beam 2, the cross beam 2 is connected with a shackle 6 through the small lifting ear 5, a butterfly buckle 8 is connected to the shackle 6, a lifting chain 7 is connected to the butterfly buckle 8, the lifting chain 7 is also connected with a U-shaped seat 10 and a stop rod 11 through the butterfly buckle 8, the U-shaped seat 10 and the stop rod 11 are welded as one piece, and a permanent magnetic suction cup 9 is fixedly installed on the bottom surface of the U-shaped seat 10, and a limiting component 12 and an adjustment component 13 are also arranged on the U-shaped seat 10.

[0028] The limit assembly 12 includes a screw 122 and a transmission shaft 125 rotatably arranged on the U-shaped seat 10, and the limit assembly 12 also includes a clamping plate 121 slidably arranged on the U-shaped seat 10, the clamping plate 121 is also threadedly connected with the screw 122, the clamping plate 121 is a T-shaped structure design, and a through hole for passing the blocking rod 11 is opened on the clamping plate 121, and there are two clamping plates 121, which are symmetrically arranged on both sides of the center of the U-shaped seat 10, and the second reversing gear 12 is fixedly installed on the transmission shaft 125. 4. The second reversing gear 124 is meshedly connected with the first reversing gear 123, and a pulley set 126 is also provided on the transmission shaft 125. There are two screw rods 122, one of which is transmission-connected to the transmission shaft 125 through the pulley set 126, and the other screw rod 122 is fixedly connected to the first reversing gear 123. The size of the first reversing gear 123 is consistent with that of the second reversing gear 124, which enables the two screw rods 122 to have the same rotation speed, thereby meeting the actual transmission requirements.

[0029] The adjustment assembly 13 includes a disc-shaped shaft 134 rotatably arranged inside the U-shaped seat 10, a main transmission gear 135 is fixedly mounted on the upper end surface of the disc-shaped shaft 134, and a reset torsion spring 138 is fixedly mounted on the lower end surface of the disc-shaped shaft 134, and the lower end of the reset torsion spring 138 is also fixedly connected to the U-shaped seat 10, a first rack 136 is meshedly connected to the main transmission gear 135, the first rack 136 is slidably connected to the U-shaped seat 10, and a slide 137 is also fixedly mounted on the first rack 136, and an auxiliary bearing 1311 is arranged on the slide 137, and the slide 137 is supported by the auxiliary bearing 1311. 11 is rotatably connected with an active rod 132, and a friction block 133 is fixedly arranged at the end of the active rod 132 adjacent to the transmission shaft 125, and a second friction pattern for increasing friction is arranged on the side of the friction block 133 adjacent to the transmission shaft 125, and a first rack 136 is provided in total of two, and the two first racks 136 are symmetrically arranged on both sides of the main transmission gear 135. The number of active rods 132 is consistent with the number of first racks 136, and the two active rods 132 are also symmetrically arranged on both sides of the center of the U-shaped seat 10, and the active rod 132 passes through the end of the U-shaped seat 10 and is fixedly installed with a knob 1 31, and the outer surface of the knob 131 is provided with anti-slip grooves. The design of the two active rods 132 can make the user's operation more convenient. The user can use the knobs 131 on both sides of the U-shaped seat 10 to adjust the state of its internal structure, thereby improving the practicality of the overall device. The top surface of the main transmission gear 135 is fixedly installed with a connecting shaft 139, and the upper end of the connecting shaft 139 is fixedly installed with a secondary transmission gear 1310. The secondary transmission gear 1310 is meshed and connected with a second rack 1312. The second rack 1312 is slidably connected to the U-shaped seat 10, and the second rack 1312 is A Z-shaped rod 1313 is fixedly installed, and a clamping block 1314 is fixedly installed at the end of the Z-shaped rod 1313. The clamping block 1314 can contact the transmission shaft 125, and the contact surface shape of the clamping block 1314 and the transmission shaft 125 is arc-shaped. The outer surface adjacent to the transmission shaft 125 and the clamping block 1314 is provided with a first friction pattern for increasing friction, which can ensure that after the clamping blocks 1314 on both sides of the transmission shaft 125 clamp the transmission shaft 125, sufficient friction is formed to limit the rotation of the transmission shaft 125, thereby locking the state of the transmission shaft 125 according to different actual application scenarios.

[0030] Working principle: The main beam 1 and the cross beam 2 are orthogonally welded into a whole, and the reinforcing bracket 3 is used to strengthen the connection between the main beam 1 and the cross beam 2. The large lifting lug 4 is welded on the main beam 1 according to the designed spacing, and the small lifting lug 5 is welded on the cross beam 2 according to the designed spacing. Butterfly buckles 8 are installed on both ends of the lifting chain 7. The butterfly buckle 8 at one end of the lifting chain 7 is connected to the small lifting lug 5 through the shackle 6, and the butterfly buckle 8 at the other end is connected to the U-shaped seat 10 on the permanent magnetic suction cup 9. When lifting thin steel plates, use steel wire rope to connect the large lifting lug 4 on the main beam 1 to the car The crane hook in the room is connected, the crane lifts the main beam 1 to the top of the thin steel plate, and slowly lowers the main beam 1 to make the permanent magnetic suction cup 9 contact with the thin steel plate. According to the length and width of the steel plate, the number and position of the permanent magnetic suction cup 9 are determined, and the switch of the permanent magnetic suction cup 9 is turned on to make the thin steel plate firmly adsorbed on the permanent magnetic suction cup 9. The crane hook slowly rises, lifts the thin steel plate to the tire frame, and turns off the switch of the permanent magnetic suction cup 9; when the butterfly buckle 8 passes through the gap between the U-shaped seat 10 and the stop rod 11 and is connected to the U-shaped seat 10, it is first passed through The knob 131 pushes the active rod 132 to slide inside the U-shaped seat 10, so that the friction block 133 at the end of the active rod 132 is in close contact with the transmission shaft 125. Under the action of the friction pattern on the side of the friction block 133, the transmission shaft 125 can be driven to rotate together after the active rod 132 rotates, and the second reversing gear 124 fixed on the transmission shaft 125 is meshed and connected with the first reversing gear 123, and the second reversing gear 124 is the same size as the first reversing gear 123, and the first reversing gear 123 is connected to one of the two reversing gears. One screw rod 122 is fixedly connected, and the other screw rod 122 is connected to the transmission shaft 125 through the pulley set 126. Therefore, when the transmission shaft 125 rotates, the two screw rods 122 rotate synchronously, but the rotation directions of the two screw rods 122 are opposite, so as to push the clamping plate 121 threadedly connected with the screw rod 122 to slide on the U-shaped seat 10 toward the center of the U-shaped seat 10. The two clamping plates 121 slide synchronously and cooperate with each other, so that the contact point between the butterfly buckle 8 and the blocking rod 11 can be limited to the central part of the blocking rod 11;Finally, the knob 131 is loosened, so that the active rod 132 is rotatably connected with the slide seat 137 fixed on the first rack 136 by using the auxiliary bearing 1311, and the first rack 136 is meshed with the main transmission gear 135. The upper surface of the main transmission gear 135 is fixedly connected with the auxiliary transmission gear 1310 through the connecting shaft 139. The lower surface of the main transmission gear 135 is provided with a disc-shaped shaft 134 connected with the reset torsion spring 138. Under the elastic force of the reset torsion spring 138, the main transmission gear 135 drives the auxiliary transmission gear 1310 to rotate in the direction, so that the first rack 136 slides in the direction away from the center of the U-shaped seat 10, so that the main transmission gear 135 is rotated again. A gap is generated between the friction block 133 and the transmission shaft 125, and after the secondary transmission gear 1310 rotates in the opposite direction with the main transmission gear 135, the secondary transmission gear 1310 can drive the Z-shaped rod 1313 fixed on the second rack 1312 and the clamping block 1314 at the end of the Z-shaped rod 1313 to slide toward the transmission shaft 125 through the second rack 1312 meshing therewith, until the two clamping blocks 1314 clamp the transmission shaft 125. In addition, because the friction lines for increasing the friction force are added on the contact surface between the transmission shaft 125 and the clamping block 1314, the rotation of the transmission shaft 125 can be limited to ensure the clamping effect of the clamping plate 121 on the butterfly buckle 8. ;

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Magnetic lifting device for marine thin steel plates, characterized by: The invention comprises a main beam (1), a cross beam (2) is arranged on the bottom surface of the main beam (1), and the cross beam (2) and the main beam (1) are orthogonally combined and welded to form a structure, a reinforcing bracket (3) is also welded at the connection between the cross beam (2) and the main beam (1), a large lifting lug (4) is fixedly installed on the top surface of the main beam (1), a small lifting lug (5) is fixedly installed on the bottom surface of the cross beam (2), and the cross beam (2) is connected to a shackle (6) via the small lifting lug (5), The shackle (6) is connected to a butterfly buckle (8), the butterfly buckle (8) is connected to a lifting chain (7), the lifting chain (7) is also connected to a U-shaped seat (10) and a stop rod (11) through the butterfly buckle (8), the U-shaped seat (10) and the stop rod (11) are integrally welded, and a permanent magnetic chuck (9) is fixedly mounted on the bottom surface of the U-shaped seat (10), and a limit assembly (12) and an adjustment assembly (13) are also provided on the U-shaped seat (10); The limiting assembly (12) comprises a screw rod (122) and a transmission shaft (125) rotatably arranged on the U-shaped seat (10), and the limiting assembly (12) further comprises a clamping plate (121) slidably arranged on the U-shaped seat (10), the clamping plate (121) is also threadedly connected to the screw rod (122), a second reversing gear (124) is fixedly mounted on the transmission shaft (125), the second reversing gear (124) is meshingly connected to the first reversing gear (123), a pulley group (126) is also arranged on the transmission shaft (125), two screw rods (122) are provided, one of the screw rods (122) is transmission-connected to the transmission shaft (125) via the pulley group (126), and the other screw rod (122) is fixedly connected to the first reversing gear (123), and the size of the first reversing gear (123) is consistent with that of the second reversing gear (124); The adjustment assembly (13) comprises a disc-shaped shaft (134) rotatably arranged inside the U-shaped seat (10); a main transmission gear (135) is fixedly mounted on the upper end surface of the disc-shaped shaft (134); a reset torsion spring (138) is fixedly mounted on the lower end surface of the disc-shaped shaft (134); the lower end of the reset torsion spring (138) is also fixedly connected to the U-shaped seat (10); a first rack (136) is meshedly connected to the main transmission gear (135); the first rack (136) is slidably connected to the U-shaped seat (10); a slide seat (137) is also fixedly mounted on the first rack (136); an auxiliary bearing (1311) is arranged on the slide seat (137); and the slide seat (137) is connected to the U-shaped seat (10) by a plurality of screws. An active rod (132) is rotatably connected via an auxiliary bearing (1311); a friction block (133) is fixedly arranged at the end of the active rod (132) adjacent to the transmission shaft (125); a connecting shaft (139) is fixedly installed on the top surface of the main transmission gear (135); a secondary transmission gear (1310) is fixedly installed on the upper end of the connecting shaft (139); a second rack (1312) is meshingly connected to the secondary transmission gear (1310); the second rack (1312) is slidably connected to the U-shaped seat (10); a Z-shaped rod (1313) is fixedly installed on the second rack (1312); a clamping block (1314) is fixedly installed at the end of the Z-shaped rod (1313).

2. The magnetic suspension device for marine thin steel plates according to claim 1, characterized in that: The clamping plate (121) is designed as a T-shaped structure, and a through hole for passing the blocking rod (11) is provided on the clamping plate (121).

3. The magnetic suspension device for shipbuilding thin steel plates according to claim 1, characterized in that: There are two clamping plates (121) in total, and the two clamping plates (121) are symmetrically arranged on both sides of the center of the U-shaped seat (10).

4. The magnetic suspension device for shipbuilding thin steel plates according to claim 1, characterized in that: There are two first racks (136) in total, and the two first racks (136) are symmetrically arranged on both sides of the main transmission gear (135).

5. The magnetic suspension device for shipbuilding thin steel plates according to claim 1, characterized in that: The number of the active rods (132) is consistent with the number of the first racks (136), and the two active rods (132) are also symmetrically arranged on both sides of the center of the U-shaped seat (10).

6. The magnetic suspension device for shipbuilding thin steel plates according to claim 1, characterized in that: The clamping block (1314) can be in contact with the transmission shaft (125), and the contact surface between the clamping block (1314) and the transmission shaft (125) is in an arc shape.

7. The magnetic suspension device for shipbuilding thin steel plates according to claim 1, characterized in that: A first friction pattern for increasing friction is provided on the outer surface of the transmission shaft (125) adjacent to the clamping block (1314).

8. The magnetic suspension device for shipbuilding thin steel plates according to claim 1, characterized in that: The side surface of the friction block (133) adjacent to the transmission shaft (125) is provided with a second friction pattern for increasing friction force.

9. The magnetic suspension device for shipbuilding thin steel plates according to claim 1, characterized in that: The active rod (132) passes through the end of the U-shaped seat (10) and is fixedly mounted with a knob (131), and the outer surface of the knob (131) is provided with anti-slip grooves.

Images