A hoisting and shifting tool and hoisting method for a low-temperature liquid tank container cylinder

Abstract

The present invention discloses a hoisting and shifting tool and a hoisting method for a low-temperature liquid tank container cylinder, wherein the hoisting and shifting tool comprises an upper steel pipe and a lower steel pipe arranged horizontally and spaced apart and arranged up and down, a rigid connecting arm connected between one end of the upper steel pipe and one end of the lower steel pipe, a lifting lug is arranged on the upper side of the upper steel pipe, an arc-shaped support is connected to the upper side of the lower steel pipe, the arc-shaped support comprises an arc-shaped steel plate body for positioning and holding up the inner hole surface of the cylinder during hoisting, the outer circle upper side of the lower steel pipe is connected to the middle part of the inner arc surface of the arc-shaped steel plate body, a number of reinforcing ribs are arranged at intervals along the axial direction of the lower steel pipe at the left and right sides of the lower steel pipe, and the reinforcing ribs are connected between the lower steel pipe and the arc-shaped steel plate body; the outer arc radius of the arc-shaped steel plate body is adapted to the inner hole radius of the cylinder. The present invention facilitates the hoisting and transportation of the cylinder, and improves the efficiency and safety of the hoisting operation.

Description

Technical Field

[0001] The invention relates to the technical field of hoisting, and in particular to a hoisting and displacement tool and a hoisting method for a cylinder of a cryogenic liquid tank container. Background Art

[0002] A cryogenic liquid tank container is a mobile pressure vessel with an external support frame for transporting cryogenic liquids. The core components of a cryogenic liquid tank container are the inner container and the outer container. An interlayer space is formed between the inner container and the outer container. The thermal insulation performance of the container is ensured by evacuating the interlayer space. Both the inner container and the outer container on the cryogenic liquid tank container are welded structural parts, which are composed of a cylinder and heads connected to both ends of the cylinder. Among them, the cylinder is formed by cutting and blanking steel plates and then rolling them with a plate rolling machine. After the cylinder is rolled and formed, a longitudinal seam will be left on the cylinder. Therefore, the cylinder needs to be hoisted and transported to special welding equipment for welding of the longitudinal seam of the cylinder.

[0003] The cylinder on the cryogenic liquid tank container in the prior art still has the following problems during manufacturing:

[0004] First, after the cylinder is rolled, it needs to be removed from the roller of the plate rolling machine and transferred to a special cylinder welding device. Due to the lack of effective cylinder hoisting and transfer tooling, the efficiency of the hoisting is low and the safety of the hoisting is poor.

[0005] Second, due to the accuracy of the plate rolling machine and human factors, there will be a certain longitudinal seam misalignment error after the steel plate is bent (for example Figure 8 As shown in the figure, the traditional solution is to place the cylinder with the longitudinal seam misalignment on the shaping workbench, use a hand chain hoist to adjust the misaligned seam after fixing it, and then fix it by spot welding. Finally, the cylinder is hoisted and transferred to a special welding equipment for welding the longitudinal seam of the cylinder. When correcting the misalignment, multiple people need to cooperate professionally, the production efficiency is low, and there are certain safety hazards in the operation process. Summary of the invention

[0006] In order to solve the above problems, the present invention proposes a hoisting and shifting tool and hoisting method for the cylinder of a cryogenic liquid tank container, aiming to facilitate the hoisting and transportation of the cylinder and improve the efficiency and safety of the hoisting operation. The specific technical solution is as follows:

[0007] A lifting and shifting tool for the cylinder of a low-temperature liquid tank container, comprising an upper steel pipe and a lower steel pipe horizontally spaced and arranged up and down, a rigid connecting arm connected between one end of the upper steel pipe and one end of the lower steel pipe, the upper side of the upper steel pipe is provided with a lifting ear, the upper side of the lower steel pipe is connected to an arc-shaped support member, the arc-shaped support member comprises an arc-shaped steel plate body for positioning and supporting the inner hole surface of the cylinder during lifting, the upper side of the outer circle of the lower steel pipe is connected to the middle part of the inner arc surface of the arc-shaped steel plate body, a number of reinforcing ribs are respectively arranged at intervals on the left and right sides of the lower steel pipe along the axial direction of the lower steel pipe, the reinforcing ribs are connected between the lower steel pipe and the arc-shaped steel plate body; the outer arc radius of the arc-shaped steel plate body is adapted to the inner hole radius of the cylinder.

[0008] As a preferred solution of the rigid connecting arm structure, the rigid connecting arm includes an end plate connected between the end face of the upper steel pipe and the end face of the lower steel pipe, a support plate connected between the upper steel pipe and the lower steel pipe and close to the end plate, and a side plate connected between the end plate and the support plate and respectively connected to the front and rear sides of the upper steel pipe and the lower steel pipe.

[0009] Preferably, an intermediate reinforcing rib is connected between the upper steel pipe and the lower steel pipe, and the intermediate reinforcing rib is located between the two side plates of the upper steel pipe and the lower steel pipe; an upper reinforcing plate is arranged upward at the upper part of the upper steel pipe close to the end plate, and a lower reinforcing plate is arranged downward at the lower part of the lower steel pipe close to the end plate.

[0010] As a further improvement of the present invention, a cylinder longitudinal seam misalignment correction assembly is also provided on the hoisting and shifting tooling, and the cylinder longitudinal seam misalignment correction assembly includes a block arranged on the arc-shaped steel plate body and close to the cantilever end of the lower steel pipe, and a jack arranged on the rigid connecting arm, the upper part of the block is higher than the upper part of the arc-shaped steel plate body, and the tightening direction of the jack points to the direction of the block; during hoisting, the upper wall of the cylinder is located between the block and the jack and is supported on the arc-shaped steel plate body.

[0011] The axial misalignment of the longitudinal joint of the cylinder can be eliminated by the axial pressure of the jack.

[0012] As a further improvement of the present invention, a lifting balance aligner is also provided on the upper steel pipe, and the lifting balance aligner includes a sliding block sleeved on the outer circle of the upper steel pipe, a screw rod rotatably arranged on the rigid connecting arm, and an operating wheel for driving the screw rod to rotate, and the other end of the screw rod is threadedly connected to the sliding block to realize the movement of the sliding block along the axial direction of the upper steel pipe; the lifting ear is arranged on the upper part of the sliding block.

[0013] The above-mentioned hoisting balance aligner is a manually operated hoisting balance aligner, and the specific usage method is as follows: after the arc-shaped support is inserted into the cylinder, first try to lift the cylinder upward, observe the inclination of the cylinder, adjust the operating wheel according to the inclination of the cylinder to move the sliding block until the axis of the cylinder is horizontal, and then lift the cylinder and slowly move the cylinder out of the shaft roller of the plate rolling machine.

[0014] A further improvement scheme is: the hoisting balance straightener is an automatic hoisting balance straightener, and the automatic hoisting balance straightener also includes an MCU controller and a worm gear reducer respectively arranged on the rigid connecting arm, the screw serves as the output shaft of the worm gear reducer, the operating wheel is arranged at one end of the input shaft of the worm gear reducer, and a drive motor is connected to the other end of the input shaft of the worm gear reducer, an electronic level is arranged on the rigid connecting arm, and the drive motor and the electronic level are respectively connected to the MCU controller.

[0015] The above-mentioned electronic level can also be arranged on the lower steel pipe.

[0016] The above-mentioned improved automatic hoisting balance and alignment device realizes automatic hoisting balance during the hoisting process, and its working principle is: during the hoisting process, the electronic level detects the inclination of the cylinder, and the MCU controller controls the action of the drive motor according to the inclination of the cylinder measured by the electronic level, so that the sliding block moves until the axis of the cylinder is horizontal.

[0017] Preferably, the hoisting and shifting tooling is provided with a power input socket for supplying power to the driving motor and the MCU controller, and a power supply cable for providing electrical energy to the automatic hoisting balance and alignment device is led out from the hoisting equipment of the cylinder, and the power supply cable is plugged and connected to the power input socket by a quick plug-in method.

[0018] Preferably, the jack is an electric jack, and the electric jack is connected to the MCU controller.

[0019] Preferably, the number of the lifting ears is a pair.

[0020] In order to further improve the reliability of the lifting and shifting tooling, a further improvement scheme is: a guide hole is axially arranged on the upper part of the sliding block, a guide light rod is slidably fitted in the guide hole of the sliding block, an end flange is arranged on the cantilever end of the upper steel pipe, a rib plate flange is connected to the upper reinforcing plate, and both ends of the guide light rod are respectively fixed to the end flange and the rib plate flange by bolts.

[0021] In order to reduce the friction between the sliding block and the upper steel pipe and further improve the reliability of the lifting and shifting tooling, a further improvement scheme is: a linear bearing is arranged between the inner hole of the sliding block and the outer circle of the upper steel pipe.

[0022] A method for hoisting a low-temperature liquid tank container cylinder with a hoisting and displacement tool, comprising the following steps:

[0023] (1) Tool preparation: hang the lifting and shifting tool on the hook of the lifting equipment and connect the power supply;

[0024] (2) Adjustment of the position of the cylinder to be hoisted: Check the longitudinal joint position of the cylinder that has been rolled on the plate rolling machine, operate the shaft roller of the plate rolling machine to rotate the longitudinal joint on the cylinder to the position directly above the cylinder;

[0025] (3) Cylinder hooking and misalignment correction: operate the lifting equipment to move the lifting and shifting tooling to the side of the plate rolling machine, then insert the arc-shaped support on the lifting and shifting tooling into the cylinder that has been rolled on the plate rolling machine, lift the lifting and shifting tooling upward so that the upper cylinder wall of the cylinder is located between the stopper and the jack and supported on the arc-shaped steel plate body, and the longitudinal seam on the cylinder is located between the stopper and the jack. After it is in place, operate the jack on the cylinder longitudinal seam misalignment correction assembly so that the jack supports both sides of the cylinder longitudinal seam to eliminate the axial misalignment of the cylinder longitudinal seam;

[0026] (4) Hoisting and transportation of the cylinder: Loosen the rollers on the plate rolling machine, hoist and transport the cylinder to the cylinder longitudinal seam welding equipment, and use the cylinder longitudinal seam welding equipment to spot weld the cylinder longitudinal seam to prevent the cylinder longitudinal seam from misaligning again after the hoisting and shifting tooling is loosened; after the cylinder longitudinal seam is spot welded, loosen the jack on the cylinder longitudinal seam misalignment correction assembly, and then detach the hoisting and shifting tooling from the cylinder.

[0027] Preferably, during the hoisting and transportation of the cylinder in step (4), the balance position of the cylinder is automatically aligned by an automatic hoisting balance alignment device.

[0028] The beneficial effects of the present invention are:

[0029] First, the hoisting and shifting tooling and hoisting method of the cylinder of a cryogenic liquid tank container of the present invention adopts a double steel pipe hoisting structure and uses arc-shaped supports to position and support the cylinder, which can well balance the weight of the cylinder. The cylinder will not shake during hoisting. It is easy to operate and has good working reliability, thereby improving the efficiency and safety of the hoisting operation.

[0030] Second, the hoisting and shifting tooling and hoisting method of the cylinder of a cryogenic liquid tank container of the present invention is provided with a cylinder longitudinal joint misalignment correction component, which not only plays the role of fixing the cylinder during the cylinder hoisting process, but also plays the role of correcting the longitudinal joint misalignment of the cylinder. After the cylinder is transferred to the welding equipment, it can be first spot-welded and fixed at the longitudinal joint of the cylinder. After the spot welding is fixed, the hoisting and shifting tooling is removed, and then the cylinder is fully welded. This method overcomes the disadvantage that a special correction process is required for the misalignment of the traditional cylinder, and improves production efficiency.

[0031] Third, the hoisting and shifting tooling and hoisting method of a cryogenic liquid tank container cylinder of the present invention is provided with a hoisting balance alignment device, which can ensure the balance during hoisting, improve the safety of hoisting, and overcome the disadvantage of troublesome adjustment when imbalance occurs in traditional hoisting. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of a hoisting and shifting tool for a low-temperature liquid tank container cylinder of the present invention;

[0033] Figure 2 yes Figure 1 A-direction sectional view;

[0034] Figure 3 yes Figure 1 A cross-sectional view (left view) of the rigid connecting arm portion;

[0035] Figure 4 Schematic diagram of the structure in which the cylinder is supported on an arc-shaped support member;

[0036] Figure 5 is Figure 1 A schematic diagram of a further improved structure based on the above (adding a cylinder longitudinal joint misalignment correction component and a hoisting balance straightener, which are manually operated);

[0037] Figure 6 is Figure 5 The schematic diagram of the structure further improved on the basis of the above (the cylinder longitudinal joint misalignment correction component and the hoisting balance straightener are electrically operated);

[0038] Figure 7 It is a schematic diagram of adjusting the longitudinal seam on the cylinder to the position just above the cylinder by the roller of the plate rolling machine on the plate rolling machine;

[0039] Figure 8 This is a schematic diagram of the axial misalignment that occurs after the cylinder is rolled.

[0040] In the figure: 1. cylinder, 2. upper steel pipe, 3. lower steel pipe, 4. rigid connecting arm, 5. lifting ear, 6. arc-shaped support, 7. arc-shaped steel plate sheet, 8. reinforcing rib, 9. end plate, 10. support plate, 11. side plate, 12. middle reinforcing rib, 13. upper reinforcing plate, 14. lower reinforcing plate, 15. cylinder longitudinal joint misalignment correction assembly, 16. block, 17. jack, 18. lifting balance straightener, 19. sliding block, 20. screw rod, 21. operating wheel, 22. MCU controller, 23. worm gear reducer, 24. driving motor, 25. electronic level, 26. shaft roller of plate rolling machine, 27. longitudinal joint on the cylinder, 28. end flange, 29. rib plate flange, 30. guide light rod, 31. bolt, 32. linear bearing. DETAILED DESCRIPTION

[0041] The specific implementation of the present invention is further described below in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0042] Embodiment 1:

[0043] like Figures 1 to 8 The figure shows an embodiment of a lifting and shifting tool for a low-temperature liquid tank container cylinder of the present invention, comprising an upper steel pipe 2 and a lower steel pipe 3 which are arranged horizontally at intervals and arranged up and down, a rigid connecting arm 4 connected between one end of the upper steel pipe 2 and one end of the lower steel pipe 3, a lifting ear 5 is provided on the upper side of the upper steel pipe 2, an arc-shaped support member 6 is connected to the upper side of the lower steel pipe 3, the arc-shaped support member 6 comprises an arc-shaped steel plate body 7 for positioning and supporting the inner hole surface of the cylinder 1 upward during lifting, the outer circle upper side part of the lower steel pipe 3 is connected to the middle part of the inner circle surface of the arc-shaped steel plate body 7, a number of reinforcing ribs 8 are arranged at intervals on the left and right sides of the lower steel pipe 3 along the axial direction of the lower steel pipe 3, and the reinforcing ribs 8 are connected between the lower steel pipe 3 and the arc-shaped steel plate body 7; the outer arc radius of the arc-shaped steel plate body 7 is adapted to the inner hole radius of the cylinder 1.

[0044] As a preferred solution of the rigid connecting arm structure, the rigid connecting arm 4 includes an end plate 9 connected between the end faces of the upper steel pipe 2 and the lower steel pipe 3, a support plate 10 connected between the upper steel pipe 2 and the lower steel pipe 3 and close to the end plate 9, and a side plate 11 connected between the end plate 9 and the support plate 10 and respectively connected to the front and rear sides of the upper steel pipe 2 and the lower steel pipe 3.

[0045] Preferably, an intermediate reinforcing rib 12 is connected between the upper steel pipe 2 and the lower steel pipe 3, and the intermediate reinforcing rib 12 is located between the two side plates 11 of the upper steel pipe 2 and the lower steel pipe 3; an upper reinforcing plate 13 is arranged upward at the upper part of the upper steel pipe 2 close to the end plate 9, and a lower reinforcing plate 14 is arranged downward at the lower part of the lower steel pipe 3 close to the end plate 9.

[0046] As a further improvement of this embodiment, a cylinder longitudinal seam misalignment correction component 15 is also provided on the hoisting and shifting tooling, and the cylinder longitudinal seam misalignment correction component 15 includes a stopper 16 arranged on the arc-shaped steel plate body 7 and close to the cantilever end of the lower steel pipe 3, and a jack 17 arranged on the rigid connecting arm 4, the upper part of the stopper 16 is higher than the upper part of the arc-shaped steel plate body 7, and the tightening direction of the jack 17 points to the direction of the stopper 16; during hoisting, the upper wall of the cylinder 1 is located between the stopper 16 and the jack 17 and is supported on the arc-shaped steel plate body 7.

[0047] The axial misalignment of the longitudinal seam 27 of the cylinder 1 can be eliminated by the axial pressing of the jack 17 .

[0048] As a further improvement of this embodiment, a lifting balance aligner 18 is also provided on the upper steel pipe 2, and the lifting balance aligner 18 includes a sliding block 19 sleeved on the outer circle of the upper steel pipe 2, a screw rod 20 rotatably arranged on the rigid connecting arm 4, and an operating wheel 21 for driving the screw rod 20 to rotate, and the other end of the screw rod 20 is threadedly connected to the sliding block 19 to realize the movement of the sliding block 19 along the axial direction of the upper steel pipe 2; the lifting ear 5 is arranged on the upper part of the sliding block 19.

[0049] The above-mentioned hoisting balance aligner 18 is a manually operated hoisting balance aligner, and the specific method of use is as follows: after the arc-shaped support member 6 is inserted into the cylinder 1, first try to lift the cylinder 1 upward, observe the inclination of the cylinder 1, and adjust the operating wheel 21 according to the inclination of the cylinder 1, so that the sliding block 19 moves until the axis of the cylinder 1 is in a horizontal state, and then lift the cylinder 1 and slowly move the cylinder 1 out of the shaft roller 26 of the plate rolling machine.

[0050] A further improvement scheme is: the hoisting balance straightener 18 is an automatic hoisting balance straightener, and the automatic hoisting balance straightener also includes an MCU controller 22 and a worm gear reducer 23 respectively arranged on the rigid connecting arm 4, the screw 20 serves as the output shaft of the worm gear reducer 23, the operating wheel 21 is arranged at one end of the input shaft of the worm gear reducer 23, and a drive motor 24 is connected to the other end of the input shaft of the worm gear reducer 23, and an electronic level 25 is arranged on the rigid connecting arm 4, and the drive motor 24 and the electronic level 25 are respectively connected to the MCU controller 22.

[0051] The electronic level 25 may also be disposed on the lower steel pipe 3 .

[0052] The above-mentioned improved automatic lifting balance and alignment device realizes automatic lifting balance during the lifting process, and its working principle is: during the lifting process, the electronic level 25 detects the inclination of the cylinder 1, and the MCU controller 22 controls the operation of the drive motor 24 according to the inclination of the cylinder 1 measured by the electronic level 25, so that the sliding block 19 moves until the axis of the cylinder 1 is in a horizontal state.

[0053] Preferably, the hoisting and shifting tooling is provided with a power input socket for supplying power to the driving motor 24 and the MCU controller 22, and a power supply cable for providing electrical energy to the automatic hoisting balance and alignment device 18 is led out from the hoisting equipment of the cylinder 1, and the power supply cable is connected to the power input socket by quick plug-in.

[0054] Preferably, the jack 17 is an electric jack, and the electric jack 17 is connected to the MCU controller 22 .

[0055] Preferably, the number of the lifting ears 5 is a pair.

[0056] In order to further improve the reliability of the lifting and shifting tooling, a further improvement scheme is: a guide hole is axially arranged on the upper part of the sliding block 19, a guide light rod 30 is slidably fitted in the guide hole of the sliding block 19, an end flange 28 is arranged on the cantilever end of the upper steel pipe 2, a rib plate flange 29 is connected to the upper reinforcing plate 13, and both ends of the guide light rod 30 are respectively fixed to the end flange 28 and the rib plate flange 29 by bolts 31.

[0057] In order to reduce the friction between the sliding block 19 and the upper steel pipe 2 and further improve the reliability of the lifting and shifting tooling, a further improvement scheme is: a linear bearing 32 is arranged between the inner hole of the sliding block 19 and the outer circle of the upper steel pipe 2.

[0058] Embodiment 2:

[0059] A method for hoisting a cryogenic liquid tank container cylinder using the hoisting and displacement tooling of Example 1 comprises the following steps:

[0060] (1) Tool preparation: hang the lifting and shifting tool on the hook of the lifting equipment and connect the power supply;

[0061] (2) Adjustment of the position of the cylinder to be hoisted: Check the position of the longitudinal seam 27 of the cylinder 1 that has been rolled on the plate rolling machine, and operate the shaft roller 26 of the plate rolling machine to rotate the longitudinal seam 27 on the cylinder 1 to the position just above the cylinder 1;

[0062] (3) Cylinder hooking and misalignment correction: operate the lifting equipment to move the lifting and shifting tooling to the side of the plate rolling machine, then insert the arc-shaped support member 6 on the lifting and shifting tooling into the cylinder 1 that has been rolled on the plate rolling machine, lift the lifting and shifting tooling upward so that the upper cylinder wall of the cylinder 1 is located between the stopper 16 and the jack 17 and supported on the arc-shaped steel plate body 7, and the longitudinal seam 27 on the cylinder 1 is located between the stopper 16 and the jack 17. After it is in place, operate the jack 17 on the cylinder longitudinal seam misalignment correction assembly 15 so that the jack 17 supports both sides of the longitudinal seam 27 of the cylinder 1 to eliminate the axial misalignment of the longitudinal seam 27 of the cylinder 1;

[0063] (4) Hoisting and transportation of the cylinder: Loosen the shaft roller 26 on the plate rolling machine, hoist and transport the cylinder 1 to the cylinder longitudinal seam welding equipment, and use the cylinder longitudinal seam welding equipment to spot weld the cylinder longitudinal seam to prevent the longitudinal seam 27 of the cylinder 1 from misaligning again after the hoisting and shifting tool is loosened; after the longitudinal seam 27 of the cylinder is spot welded, loosen the jack 17 on the cylinder longitudinal seam misalignment correction assembly 15, and then detach the hoisting and shifting tool from the cylinder 1.

[0064] Preferably, during the cylinder hoisting and transportation process of step (4), the automatic hoisting balance finder 18 automatically finds the balance position of the cylinder 1.

[0065] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A method for hoisting and displacing tooling for a cryogenic liquid tank container cylinder, characterized in that: The hoisting and shifting tooling comprises an upper steel pipe and a lower steel pipe which are arranged horizontally and spaced apart and arranged up and down, and a rigid connecting arm connected between one end of the upper steel pipe and one end of the lower steel pipe, a lifting lug is arranged at the upper side of the upper steel pipe, and an arc-shaped support is connected to the upper side of the lower steel pipe, and the arc-shaped support comprises an arc-shaped steel plate body for positioning and holding up the inner hole surface of the cylinder during hoisting, and the outer circle upper side of the lower steel pipe is connected to the middle part of the inner arc surface of the arc-shaped steel plate body, and a number of reinforcing ribs are arranged at intervals at the left and right sides of the lower steel pipe along the axial direction of the lower steel pipe, and the reinforcing ribs are connected between the lower steel pipe and the arc-shaped steel plate body; The outer arc radius of the arc-shaped steel plate body is matched with the inner hole radius of the cylinder body; the hoisting and shifting tool is also provided with a cylinder longitudinal seam misalignment correction component, and the cylinder longitudinal seam misalignment correction component includes a block arranged on the arc-shaped steel plate body and close to the cantilever end of the lower steel pipe, and a jack arranged on the rigid connecting arm, the upper part of the block is higher than the upper part of the arc-shaped steel plate body, and the tightening direction of the jack points to the direction of the block; during hoisting, the upper cylinder wall of the cylinder body is located between the block and the jack and supported on the arc-shaped steel plate body; the hoisting method of the hoisting and shifting tool of the low-temperature liquid tank container cylinder body comprises the following steps: (1) Tool preparation: hang the lifting and shifting tool on the hook of the lifting equipment and connect the power supply; (2) Adjustment of the position of the cylinder to be hoisted: Check the longitudinal joint position of the cylinder that has been rolled on the plate rolling machine, operate the shaft roller of the plate rolling machine to rotate the longitudinal joint on the cylinder to the position directly above the cylinder; (3) Cylinder hooking and misalignment correction: operate the lifting equipment to move the lifting and shifting tooling to the side of the plate rolling machine, then insert the arc-shaped support on the lifting and shifting tooling into the cylinder that has been rolled on the plate rolling machine, lift the lifting and shifting tooling upward so that the upper cylinder wall of the cylinder is located between the stopper and the jack and supported on the arc-shaped steel plate body, and the longitudinal seam on the cylinder is located between the stopper and the jack. After it is in place, operate the jack on the cylinder longitudinal seam misalignment correction assembly so that the jack supports both sides of the cylinder longitudinal seam to eliminate the axial misalignment of the cylinder longitudinal seam; (4) Hoisting and transportation of the cylinder: Loosen the rollers on the plate rolling machine, hoist and transport the cylinder to the cylinder longitudinal seam welding equipment, and use the cylinder longitudinal seam welding equipment to spot weld the cylinder longitudinal seam after it is in place to prevent the cylinder longitudinal seam from misaligning again after the hoisting and shifting tooling is loosened; after the cylinder longitudinal seam is spot welded, loosen the jack on the cylinder longitudinal seam misalignment correction assembly, and then detach the hoisting and shifting tooling from the cylinder.

2. The method for hoisting a cryogenic liquid tank container cylinder using a hoisting and displacement tool according to claim 1, characterized in that: The rigid connecting arm includes an end plate connected between the end surface of the upper steel pipe and the end surface of the lower steel pipe, a support plate connected between the upper steel pipe and the lower steel pipe and close to the end plate, and a side plate connected between the end plate and the support plate and respectively connected to the front and rear sides of the upper steel pipe and the lower steel pipe.

3. The method for hoisting a cryogenic liquid tank container cylinder using a hoisting and displacement tool according to claim 2, characterized in that: An intermediate reinforcing rib is also connected between the upper steel pipe and the lower steel pipe, and the intermediate reinforcing rib is located between the two side plates of the upper steel pipe and the lower steel pipe; an upper reinforcing plate is arranged upward at the upper part of the upper steel pipe close to the end plate, and a lower reinforcing plate is arranged downward at the lower part of the lower steel pipe close to the end plate.

4. The method for hoisting a cryogenic liquid tank container cylinder using a hoisting and displacement tool according to claim 3, characterized in that: The upper steel pipe is also provided with a lifting balance aligner, which includes a sliding block sleeved on the outer circle of the upper steel pipe, a screw rod rotatably arranged on the rigid connecting arm, and an operating wheel for driving the screw rod to rotate. The other end of the screw rod is threadedly connected to the sliding block to realize the movement of the sliding block along the axial direction of the upper steel pipe; the lifting ear is arranged on the upper part of the sliding block.

5. The method for hoisting a cryogenic liquid tank container cylinder using a hoisting and displacement tool according to claim 4, characterized in that: The lifting balance straightener is an automatic lifting balance straightener, which also includes an MCU controller and a worm gear reducer respectively arranged on the rigid connecting arm, the screw serves as the output shaft of the worm gear reducer, the operating wheel is arranged at one end of the input shaft of the worm gear reducer, and a drive motor is connected to the other end of the input shaft of the worm gear reducer. An electronic level is arranged on the rigid connecting arm, and the drive motor and the electronic level are respectively connected to the MCU controller.

6. The method for hoisting a cryogenic liquid tank container cylinder using a hoisting and displacement tool according to claim 5, characterized in that: A guide hole is axially arranged on the upper part of the sliding block, a guide light rod is slidably fitted in the guide hole of the sliding block, an end flange is arranged on the cantilever end of the upper steel pipe, a rib plate flange is connected to the upper reinforcing plate, and both ends of the guide light rod are respectively fixed to the end flange and the rib plate flange by bolts; a linear bearing is arranged between the inner hole of the sliding block and the outer circle of the upper steel pipe.

7. The method for hoisting a cryogenic liquid tank container cylinder using a hoisting and displacement tool according to claim 6, characterized in that: The hoisting and shifting tool is provided with a power input socket for supplying power to the driving motor and the MCU controller. The hoisting equipment of the cylinder is provided with a power supply cable for providing electric energy to the automatic hoisting balance straightener. The power supply cable is connected to the power input socket by quick plug-in. The jack is an electric jack, and the electric jack is connected to the MCU controller.

8. The method for hoisting a cryogenic liquid tank container cylinder using a hoisting and displacement tool according to claim 4, characterized in that: During the cylinder hoisting and transportation process of step (4), the automatic hoisting balance finder automatically finds the balance position of the cylinder.

Images