Lifting device for installation and construction of pressure vessel

Abstract

The utility model belongs to the technical field of pressure vessels, and particularly discloses a pressure vessel installation construction hoisting device which comprises a hoisting seat, a hoisting ring installed on the hoisting seat, a main fixing plate fixedly connected to the lower side of the hoisting seat, a rotating shaft hinged to the hoisting seat, and auxiliary fixing plates symmetrically arranged on the two sides of the hoisting seat in the front-back direction. A sliding hinge seat is fixedly connected to the upper side of the auxiliary fixing plate, a sliding hinge hole is formed in the sliding hinge seat, and the rotating shaft penetrates through the sliding hinge hole; the main fixing plate and the auxiliary fixing plate can be combined to form a complete annular clamping structure to fix the tank body in a hoop manner; a first pin hole is formed in the main fixing plate, a second pin hole is formed in the auxiliary fixing plate and is a long-strip-shaped hole, a positioning pin is operably inserted into the first pin hole and the second pin hole, a first screw base is detachably installed on the positioning pin, and a second screw base is fixedly connected to the auxiliary fixing plate. And the first screw seat and the second screw seat are in threaded connection with a first adjusting rod, so that tank bodies with different diameters can be adapted, and the hoisting efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of pressure vessel technology, and specifically relates to a pressure vessel installation and hoisting device. Background Technology

[0002] Pressure vessels, as core equipment in industrial production that carries high-temperature and high-pressure media, directly affect the stable operation of the process system due to the precision and safety of their installation and construction. In the lifting operation, traditional lifting tools generally have technical limitations; fixed clamps can only be used with tanks of a single specification, requiring repeated replacements for equipment of different diameters, severely restricting work efficiency; rigid connection structures are prone to tank displacement due to vibration during lifting, especially when lifting asymmetrical heavy tanks, where the risk is even greater. Utility Model Content

[0003] To address the shortcomings in the adaptability and operational efficiency of lifting devices for pressure vessels in existing technologies, a lifting and transport device for pressure vessel installation and construction is proposed. This utility model provides the following technical solution:

[0004] A pressure vessel installation and hoisting device includes a lifting base with a lifting ring mounted on it. A main fixing plate for fixing the tank body is fixedly connected to the lower side of the lifting base. A rotating shaft is hinged to the lifting base and extends forward and backward. Auxiliary fixing plates are symmetrically arranged on both sides of the lifting base in the forward and backward direction. A sliding hinge seat is fixedly connected to the upper side of the auxiliary fixing plate, and a sliding hinge hole is provided on the sliding hinge seat. The rotating shaft passes through the sliding hinge hole. The main fixing plate includes a first arc-shaped portion and a first straight portion. The auxiliary fixing plate includes a second arc-shaped portion and a second straight portion. The arc-shaped openings of the first arc-shaped portion and the second arc-shaped portion are arranged opposite to each other. A first pin hole is provided on the first straight portion, and a second pin hole is provided on the second straight portion. The second pin hole is an elongated hole. A positioning pin can be operably inserted into the first pin hole and the second pin hole. A first screw seat is detachably installed on the positioning pin. A second screw seat is fixedly connected to the auxiliary fixing plate. A first adjusting rod for adjusting the distance between the auxiliary fixing plate and the main fixing plate is threaded onto the first screw seat and the second screw seat.

[0005] Preferably, a limit block is slidably connected in the sliding hinge hole, and an adjustment hole is provided on the side of the sliding hinge seat. A second adjustment rod is threadedly connected in the adjustment hole, and one end of the second adjustment rod abuts against or is rotatably connected to the limit block.

[0006] Preferably, the limiting block has an arc-shaped groove on the side near the rotating shaft.

[0007] Preferably, the arc-shaped groove matches the outer wall of the rotating shaft.

[0008] Preferably, the limiting blocks are arranged on both sides of the rotating shaft.

[0009] Preferably, each limiting block is connected to two second adjusting rods.

[0010] Preferably, both the first arc-shaped portion and the second arc-shaped portion are curved in a circular arc shape, and the curvature is the same.

[0011] Preferably, the outer wall of the second arcuate portion is provided with a rope groove for binding.

[0012] Preferably, a connecting ring for driving the auxiliary fixing plate to flip is fixedly connected to the middle of the outer side of the second arc-shaped portion.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The combined arc-shaped clamping structure of the main fixing plate and the auxiliary fixing plate can form a complete ring-shaped wrapping interface, which significantly enhances the adaptability to tanks with different curvatures. At the same time, the symmetrically distributed auxiliary fixing plates can automatically balance the center of gravity of the tank during hoisting, effectively suppressing the attitude deviation caused by asymmetrical loads and improving the stability of hoisting operations.

[0015] 2. The sliding hinge seat is equipped with a two-way limit block, which can resist accidental lateral impact through mechanical limit and prevent the auxiliary fixing plate from swinging unexpectedly. It can also achieve uniform contact between the limit block and the rotating shaft through the double adjustment rod, avoiding structural deformation caused by single-point overload, thus building a dual safety guarantee mechanism.

[0016] 3. An arc-shaped groove is provided on the inner side of the limiting block, which perfectly matches the outer circle of the rotating shaft. The clamping stress is distributed through surface contact, which extends the service life and maintains the smooth operation of the hinge structure over a long period of time. Attached Figure Description

[0017] Figure 1 This is a front view structural diagram of the present invention;

[0018] Figure 2 This is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 3 This is a cross-sectional view of the auxiliary fixing plate of this utility model;

[0020] Figure 4 This is a cross-sectional structural schematic diagram of the main fixing plate of this utility model;

[0021] In the attached image:

[0022] 1. Lifting bracket; 11. Lifting ring; 12. Auxiliary ring;

[0023] 2. Main fixing plate; 21. First arc-shaped part; 22. First straight part; 23. First pin hole; 24. First screw seat; 25. Positioning pin; 26. First adjusting rod;

[0024] 3. Rotating shaft; 31. Limiting end block;

[0025] 4. Auxiliary fixing plate; 41. Second arc-shaped part; 42. Second straight part; 43. Second pin hole; 44. Second screw seat; 45. Rope groove; 46. Connecting ring;

[0026] 5. Sliding hinge seat; 51. Sliding hinge hole; 52. Limiting block; 521. Arc-shaped groove; 53. Second adjusting rod. Detailed Implementation

[0027] The directional terms mentioned in the following embodiments, such as "up", "down", "left", and "right", are only for reference to the accompanying drawings. Therefore, the directional terms used are for illustration and not for limiting the invention of this utility model.

[0028] like Figure 1-4 As shown, a pressure vessel installation and hoisting device includes a lifting base 1, on which a lifting ring 11 is mounted. A main fixing plate 2 for fixing the tank body is fixedly connected to the lower side of the lifting base 1. A rotating shaft 3 is hinged to the lifting base 1 and extends forward and backward. Auxiliary fixing plates 4 are symmetrically arranged on both sides of the lifting base 1 in the forward and backward direction. A sliding hinge seat 5 is welded to the upper side of the auxiliary fixing plate 4. The sliding hinge seat 5 is provided with a sliding hinge hole 51. The rotating shaft 3 passes through the sliding hinge hole 51 and is fixedly connected to a limiting end block 31 for axial limiting at its end. The main fixing plate 2 includes a first arc-shaped part 21 and a first straight part 22. The auxiliary fixing plate 4 includes a second arc-shaped part 41 and a second straight part 42. The arc-shaped openings of the first arc-shaped part 21 and the second arc-shaped part 41 are staggered and opposite to each other, and can be combined to form a complete annular clamping structure. This significantly improves the enclosure and fixing reliability of the tank. A first pin hole 23 is provided on the first straight part 22, and a second pin hole 43 is provided on the second straight part 42. The second pin hole 43 is an elongated hole. A positioning pin 25 can be inserted into the first pin hole 23 and the second pin hole 43. A first screw seat 24 is detachably installed on the positioning pin 25. A second screw seat 44 is fixedly connected to the auxiliary fixing plate 4. A first adjusting rod 26 is threadedly connected to the first screw seat 24 and the second screw seat 44. Rotating the first adjusting rod 26 can make the auxiliary fixing plate 4 move laterally relative to the main fixing plate 2, thereby clamping it. It can adapt to tanks of different diameters without changing the clamps, greatly shortening the equipment adaptation time and improving the efficiency of lifting pressure vessels. In addition, combined with the symmetrically arranged auxiliary fixing plates 4, it can improve the stability and reliability of lifting.

[0029] Furthermore, auxiliary rings 12 are symmetrically arranged along the axis of the rotating shaft 3 on the lifting ring 11 to provide multiple lifting points and improve the stability of the lifting.

[0030] Furthermore, a limit block 52 is slidably connected in the sliding hinge hole 51, and an adjustment hole is provided on the side of the sliding hinge seat 5. A second adjustment rod 53 is threadedly connected in the adjustment hole. One end of the second adjustment rod 53 abuts against or is rotatably connected to the limit block 52. After turning the second adjustment rod 53, the position of the limit block 52 can be adjusted, thereby adjusting or restricting the position of the rotating shaft 3, and also allowing the sliding hinge seat 5 to move laterally together with the auxiliary fixing plate 4.

[0031] Specifically, one end of the first adjusting rod 26 and the second adjusting rod 53 are both fixedly connected to a hexagonal prism block as a nut for easy tightening.

[0032] Specifically, the limiting block 52 has an arc-shaped groove 521 on the side near the rotating shaft 3. The arc-shaped groove 521 matches the outer wall of the rotating shaft 3 and forms a surface contact with the outer edge of the rotating shaft 3, dispersing the clamping stress and avoiding indentations on the surface of the rotating shaft 3 after long-term use, which can improve service life and smoothness.

[0033] Furthermore, limiting blocks 52 and second adjusting rods 53 are arranged on both sides of the rotating shaft 3, thereby forming a two-way mechanical limiting structure, which effectively resists accidental lateral impacts, prevents the auxiliary fixing plate 4 from swinging unexpectedly, and enhances operational safety.

[0034] Specifically, each limit block 52 is connected to two second adjusting rods 53 to ensure that the contact pressure between the limit block 52 and the rotating shaft 3 is evenly distributed, and to avoid single-point overload causing deformation of the second adjusting rod 53 structure.

[0035] Specifically, both the first arc-shaped part 21 and the second arc-shaped part 41 are curved in an arc shape with the same bending radius, which makes the force on the tank uniform, eliminates the hidden danger of local stress concentration, and improves the safety of lifting and transporting pressure vessels.

[0036] Furthermore, the outer wall of the second arc-shaped portion 41 is provided with a rope groove 45 for binding, which provides a limitable path for the flexible binding strap to prevent the binding object from slipping during hoisting, and is particularly suitable for the attitude control of asymmetrical heavy tanks.

[0037] Furthermore, a connecting ring 46 is fixedly connected to the middle of the outer side of the second arc-shaped part 41. Through an external power device, such as a crane, a quick opening and closing operation can be achieved. Compared with the traditional manual operation method, the work efficiency is increased by more than 60%, while reducing the risk of working at height.

Claims

1. A pressure vessel installation construction hoisting device comprising a hanger seat (1) on which a hanger ring (11) is mounted, characterized in that, The lower side of the hanging base (1) is fixedly connected to a main fixing plate (2) for fixing the tank body. A rotating shaft (3) is hinged on the hanging base (1). The rotating shaft (3) extends forward and backward. Auxiliary fixing plates (4) are symmetrically arranged on both sides of the hanging base (1) in the forward and backward direction. A sliding hinge seat (5) is fixedly connected to the upper side of the auxiliary fixing plate (4). A sliding hinge hole (51) is provided on the sliding hinge seat (5). The rotating shaft (3) passes through the sliding hinge hole (51). The main fixing plate (2) includes a first arc-shaped part (21) and a first straight part (22). The auxiliary fixing plate (4) includes a second arc-shaped part (41) and a second straight part (42). The arc-shaped openings of the arc-shaped part (21) and the second arc-shaped part (41) are arranged opposite to each other. The first straight part (22) is provided with a first pin hole (23), and the second straight part (42) is provided with a second pin hole (43). The second pin hole (43) is an elongated hole. A positioning pin (25) can be inserted into the first pin hole (23) and the second pin hole (43). A first screw seat (24) can be detachably installed on the positioning pin (25). A second screw seat (44) is fixedly connected to the auxiliary fixing plate (4). A first adjusting rod (26) for adjusting the distance between the auxiliary fixing plate (4) and the main fixing plate (2) is threadedly connected to the first screw seat (24) and the second screw seat (44).

2. The pressure vessel erection hoist of claim 1, wherein, A limiting block (52) is slidably connected in the sliding hinge hole (51). An adjustment hole is provided on the side of the sliding hinge seat (5). A second adjusting rod (53) is threadedly connected in the adjustment hole. One end of the second adjusting rod (53) abuts against or is rotatably connected to the limiting block (52).

3. The pressure vessel erection hoist of claim 2, wherein, The limiting block (52) has an arc-shaped groove (521) on the side near the rotating shaft (3).

4. The pressure vessel erection hoist of claim 3, wherein, The arc-shaped groove (521) matches the outer wall of the rotating shaft (3).

5. The pressure vessel erection hoist of claim 2 wherein, The limiting block (52) is arranged on both sides of the rotating shaft (3).

6. The pressure vessel erection hoist of claim 2 or 5, wherein, Each limit block (52) is connected to two second adjusting rods (53).

7. The pressure vessel installation hoisting device of claim 1, wherein Both the first arc-shaped portion (21) and the second arc-shaped portion (41) are curved in a circular arc shape and have the same curvature.

8. The pressure vessel erection hoist of claim 1 or 7, wherein, The outer wall of the second arc-shaped part (41) is provided with a rope groove (45) for binding.

9. The pressure vessel erection hoist of claim 1 or 7, wherein, The outer middle part of the second arc-shaped part (41) is fixedly connected to a connecting ring (46) for driving the auxiliary fixing plate (4) to flip.

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