An annular plate transfer device and transfer method for the reverse installation method of large storage tanks

Abstract

The present invention discloses a ring plate transfer device and a transfer method for the inverted installation method of large storage tanks, which relates to the technical field of large storage tank installation. It includes a tank body and a transfer mechanism. An annular track is arranged on the ground outside the circumference of the tank body, and the transfer mechanism is movably arranged on the track. The transfer mechanism includes a support bottom plate, and rollers are arranged at the four corners of the bottom of the support bottom plate, and the rollers are rolling on the track. By using the present invention, during the process of loading the wall plates (ring plates) in the inverted installation method of the storage tank, the cumbersome process of the truck crane hoisting the wall plates along the storage tank foundation can be avoided. Through the pre-set track, the trolley can hoist the wall plates to each installation position, and then through the positioning and adjustment work, the verticality and circularity of the ring plates are adjusted. This is much simpler than the traditional riveting workers welding small fixtures on the wall plates for wall plate assembly, greatly improving the construction simplicity.

Description

Technical Field

[0001] The invention relates to the technical field of large storage tank installation, and in particular to a ring plate transfer device and a transfer method for a large storage tank inverted installation method. Background Art

[0002] During the inverted installation process of the storage tank, a crane is currently used to install and position the bent rectangular wall panels (circle panels) on the tank body, adjust the overall arc and verticality, and then perform the assembly and welding work between the wall panels.

[0003] The traditional method of inverting storage tanks often uses a truck crane to lift the bent rectangular wall panels to the area on the bottom of the tank to be installed. The positioning, size adjustment and seam alignment are performed by setting a template. The operation is very cumbersome. Therefore, it is necessary to design a ring plate transfer device and transfer method for the inverted storage tank method to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art, and to propose a transfer device and transfer method for a ring plate for a large tank inverted installation method. Its advantages are: the patent uses a transfer mechanism similar to a trolley to replace the function of a car crane. The trolley has the function of lifting the prefabricated ring plate and can travel along the track to the tank wall to be installed. The ring plate is aligned with the surrounding tank wall through the positioning fixture on the trolley, and the verticality, roundness and joint gap of the ring plate to be installed are adjusted. Then the workers perform spot welding and welding. The use of the patented trolley can avoid the cumbersome process of the car crane circling along the tank foundation to lift the wall plate during the wall plate (ring plate) loading process of the tank inverted installation method. Through the pre-set track, the trolley can lift the wall plate to each installation position, and then adjust the verticality and arc of the ring plate through positioning and adjustment work. Compared with the traditional riveting workers welding small fixtures on the wall plate to assemble the wall plate, the simplicity of construction is greatly improved.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A ring plate transfer device and transfer method for the inverted installation method of large storage tanks, including a tank body and a transfer mechanism. An annular track is arranged on the ground outside the circumference of the tank body. The transfer mechanism is movably arranged on the track. The transfer mechanism includes a support bottom plate. Four corners of the bottom of the support bottom plate are respectively provided with rollers, and the rollers are rotatably arranged on the track. Three first support groove blocks are fixedly installed on the top of the support bottom plate, and the three first support groove blocks are located on the same straight line. A support vertical rod is hinged in the first support groove block. The tops of the three support vertical rods are fixedly installed with the same installation top plate. One end of the top of the support bottom plate is fixedly installed with a second support groove block, and a mounting block is fixedly installed on the inner wall of the top of the notch of the second support groove block. A fourth threaded hole is opened in the center of the bottom of the mounting block, and a fourth threaded rod is threadedly connected to the fourth threaded hole. The top of the fourth threaded rod is rotatably connected to a hinge mechanism, and the top of the hinge mechanism is fixedly installed with a second support rod. The top of the second support rod is fixedly connected to one end of the bottom of the installation top plate. A lifting mechanism is arranged on the top of the installation top plate. The same second support cross bar is fixedly installed at the bottom of one end of the three support vertical rods away from the second support groove block. A lifting mechanism is arranged at one end of the second support cross bar away from the second support groove block.

[0007] Through the above technical solutions: When in use, first move the device to the plate-taking port position of the track, then lift the top of the ring plates stacked together through the lifting mechanism, and then move the bottom of the ring plates into the lifting mechanism. The ring plates are lifted by the lifting mechanism, and then the ring plates are transported to the designated position through the transfer mechanism. Then, the ring plates are lifted again by the lifting mechanism, so that the bottom of the ring plates falls off from the lifting mechanism, realizing the very convenient installation of the ring plates.

[0008] The present invention is further provided that the lifting mechanism includes three support blocks fixedly installed on the top of the installation top plate. The support blocks are arranged in one-to-one correspondence with the support vertical rods. One end of the top of the support block away from the second support groove block is fixedly installed with a first support rod. A lifting wheel is fixedly installed at the bottom of the first support rod. A lifting rope is wound around the lifting wheel. One end of the lifting rope is fixedly installed with a traction motor, and the other end of the lifting rope is fixedly installed with a hook.

[0009] Through the above technical solutions: When specifically hoisting the ring plates, the hook is hung on the hanging ring preset on the outer side surface top of the ring plates, and the traction motor drives the lifting rope to take in the line, realizing the effective lifting of the ring plates.

[0010] The present invention is further provided that the lifting mechanism includes three first threaded rods corresponding to the lifting wheels one by one. A first threaded hole is opened at one end of the second support cross bar, and the first threaded rod is threadedly connected to the first threaded hole. One end of the first threaded rod away from the second support groove block is rotatably connected to a support groove plate.

[0011] Through the above technical solutions: Specifically, the ring plate is lifted by the support groove plate, and the position of the support groove plate is adjusted by rotating the first threaded rod so as to adapt to the size of the ring plate, facilitating the stable placement of the ring plate in the support groove plate.

[0012] The present invention is further configured such that an installation groove is provided at the central position of the bottom of the support groove plate, a first support spring is fixedly installed on the inner wall of the bottom of the installation groove, a limiting rod is fixedly installed at the top of the first support spring, limiting blocks are fixedly installed at the bottoms of both sides of the limiting rod, a clamping block is hinged to the inner wall of one side of the installation groove through a torsion spring, the bottom of the clamping block is clamped with the top of the limiting block, the clamping block is arranged to rotate downward, and the clamping block is arranged to be locked upward.

[0013] Through the above technical solutions: The ring plate is vertically placed at the notch of the support groove plate, and then the ring plate is inclined under the action of the top plate. At this time, the inner groove block will also be inclined, so that the clamping block is stably fixed on the limiting block, realizing effective fixation of the ring plate.

[0014] The present invention is further configured such that an inner groove block is fixedly installed at the top of the limiting rod, connecting rods are hinged to the tops of both sides of the inner groove block, the tops of both sides of the notch of the support groove plate are both arranged as inclined surfaces, chutes are provided on both inclined surfaces, sliders are slidably arranged in the chutes, a second rubber pad is slidably connected to the top of the slider, and the bottom of the slider is hinged to the top of the connecting rod.

[0015] Through the above technical solutions: The ring plate is hoisted into the inner groove block, the inner groove block descends under the influence of the gravity of the ring plate, and then the second threaded rod and the third threaded rod on the device are rotated to squeeze the ring plate, causing the ring plate to be inclined. At this time, the inner groove block will rotate accordingly. During the rotation of the inner groove block, the inner groove block will drive the sliders and the second rubber pads on both sides to slide down, and clamp the ring plate inside the notch of the support groove block, thereby further improving the fixation of the ring plate and preventing the ring plate from falling off the support groove block due to bumps during transportation, causing unnecessary losses.

[0016] The present invention is further configured such that a sleeve inclined upward is fixedly installed on the inner wall of the support groove plate away from the first threaded rod, a plug rod is inserted into the sleeve, a second support spring is fixedly connected between the plug rod and the support groove plate, a first rubber pad is hinged to the end of the plug rod away from the second support spring, an opening is provided on the side of the inner groove block close to the sleeve, and the first rubber pad is located in the opening.

[0017] Through the above technical solutions: During the rotation of the inner groove block, the first rubber pad on the plug rod will squeeze the bottom of the ring plate to realize the fixation of the ring plate.

[0018] The present invention is further configured such that at the top and middle positions of one end of the support vertical rod away from the second support groove block, first support cross bars are fixedly installed. At both sides of one end of each first support cross bar, sliding grooves are formed, and movable plates are slidably arranged in the sliding grooves. A second threaded hole is formed at one end of each movable plate, and a second threaded rod is threadedly connected in the second threaded hole. A third threaded hole is formed in the middle of one end of each first support cross bar, and a third threaded rod is threadedly connected in the third threaded hole. One end of the second threaded rod and the third threaded rod away from the second support groove block is rotatably connected to a top plate.

[0019] Through the above technical solutions: the second support rod can be jacked up by the fourth threaded rod, so as to realize the adjustment of the perpendicularity of the whole surface, align the ring plate with the surrounding tank wall, and adjust the perpendicularity, roundness and joint gap of the ring plate to be installed. Subsequently, the worker performs spot welding fixation and weld construction and other operations.

[0020] The present invention is further configured such that one end of the top plate away from the second threaded rod is arranged in an arc shape.

[0021] Through the above technical solutions: when using the top plate to press against the surface of the ring plate, the full contact between the top plate and the ring plate can be realized, and the stability of the top plate pressing against the ring plate is improved.

[0022] The present invention is further configured such that at one end of the third threaded rod and the second threaded rod close to the second support groove block, connection blocks are fixedly installed, and a connecting rod is hinged between two adjacent connection blocks.

[0023] Through the above technical solutions: when the third threaded rod drives the top plate to move, the two second threaded rods will move towards both sides along with the movable plates, so that the three top plates can effectively fit against the surface of the ring plate, and the stability of the ring plate transportation is improved.

[0024] A transportation method for a ring plate transportation device for the large storage tank reverse installation method includes the following steps:

[0025] S1: First, move the transportation mechanism to the position of the plate taking opening, and transport all the ring plates for the large storage tank to the position of the plate taking opening by truck;

[0026] S2: Use the hanging wheel structure to lift the ring plate onto the lifting mechanism, drive the top plate to move by the second threaded rod and the third threaded rod, and press the ring plate tightly by the top plate;

[0027] S3: Then, move the transportation mechanism along the track on the periphery of the large storage tank, and transport the ring plate to the installation position;

[0028] S4: Then, lift the ring plate by the hanging wheel structure, and push the ring plate to the installation position by the second threaded rod and the third threaded rod to perform the next installation operation.

[0029] The beneficial effects of the present invention are as follows:

[0030] 1. For the ring plate transfer device and transfer method for the large storage tank reverse installation method, during use, first move this device to the plate-taking port position of the track, then lift the top of the stacked ring plates through the lifting mechanism, and then move the bottom of the ring plates into the lifting mechanism. The ring plates are lifted by the lifting mechanism, and then the ring plates are transported to the designated position through the transfer mechanism. Then, the ring plates are lifted again by the lifting mechanism to make the bottoms of the ring plates fall off from the lifting mechanism, realizing the very convenient installation of the ring plates.

[0031] 2. For the ring plate transfer device and transfer method for the large storage tank reverse installation method, lift the ring plates into the inner groove block. The inner groove block descends under the influence of the gravity of the ring plates, and then rotate the second threaded rod and the third threaded rod on the device to squeeze the ring plates, causing the ring plates to tilt. At this time, the inner groove block will rotate accordingly. During the rotation of the inner groove block, the inner groove block will drive the sliders and the second rubber pads on both sides to slide down, and clamp the ring plates inside the notch of the support groove block, further improving the fixation of the ring plates and preventing the ring plates from falling off from the support groove block due to jolting during transportation, resulting in unnecessary losses.

[0032] 3. For the ring plate transfer device and transfer method for the large storage tank reverse installation method, during the rotation of the inner groove block, the first rubber pad on the insertion rod will squeeze the bottom of the ring plates to achieve the fixation of the ring plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 FIG. 15 is a front three-dimensional structural schematic diagram of a ring plate transfer device and transfer method for the large storage tank reverse installation method proposed by the present invention;

[0034] Figure 2 FIG. 19 is a back three-dimensional structural schematic diagram of a ring plate transfer device and transfer method for the large storage tank reverse installation method proposed by the present invention;

[0035] Figure 3 FIG. 23 is a partial side structural schematic diagram of a ring plate transfer device and transfer method for the large storage tank reverse installation method proposed by the present invention;

[0036] Figure 4 FIG. 27 is a top view structural schematic diagram of the first support cross bar of a ring plate transfer device and transfer method for the large storage tank reverse installation method proposed by the present invention;

[0037] Figure 5 FIG. 31 is a transfer state schematic diagram of a ring plate transfer device and transfer method for the large storage tank reverse installation method proposed by the present invention;

[0038] Figure 6 FIG. 35 is a side sectional structural schematic diagram of the support groove plate of a ring plate transfer device and transfer method for the large storage tank reverse installation method proposed by the present invention;

[0039] Figure 7 This is a schematic structural diagram of the clamping state of the support groove plate for a ring plate transfer device and transfer method using the upside-down method for large storage tanks proposed by the present invention.

[0040] In the figure: 1, support bottom plate; 2, support vertical rod; 3, first support cross bar; 4, movable plate; 5, top plate; 6, installation top plate; 7, support block; 8, first support rod; 9, support groove plate; 10, first threaded rod; 11, second support cross bar; 12, roller; 13, first support groove block; 14, connection block; 15, second threaded rod; 16, third threaded rod; 17, second support groove block; 18, second support rod; 19, hanging wheel; 20, fourth threaded rod; 21, installation block; 22, connecting rod; 23, transfer mechanism; 24, track; 25, plate taking port; 26, tank body; 27, inner groove block; 28, clamping block; 29, limiting block; 30, first support spring; 31, limiting rod; 32, first rubber pad; 33, second support spring; 34, sleeve; 35, inserting rod; 36, connecting rod; 37, slider; 38, second rubber pad. Specific embodiments

[0041] The technical solutions of this patent will be further described in detail below in conjunction with specific embodiments.

[0042] The embodiments of this patent will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain this patent and should not be construed as a limitation of this patent.

[0043] In the description of this patent, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this patent.

[0044] In the description of this patent, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "connection", "setting" should be understood in a broad sense. For example, it can be fixedly connected and set, or detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0045] Refer to Figure 1-7, A ring plate transfer device and transfer method for the reverse installation method of large storage tanks, including a tank body 26 and a transfer mechanism 23. On the ground outside the circumference of the tank body 26, an annular track 24 is provided. The transfer mechanism 23 is movably arranged on the track. The transfer mechanism 23 includes a support bottom plate 1. At the four corners of the bottom of the support bottom plate 1, rollers 12 are provided, and the rollers 12 are rotatably arranged on the track 24. On the top of the support bottom plate 1, three first support groove blocks 13 are fixedly installed, and the three first support groove blocks 13 are located on the same straight line. A support vertical rod 2 is hinged in the first support groove block 13. The tops of the three support vertical rods 2 are fixedly installed with the same installation top plate 6. At one end of the top of the support bottom plate 1, a second support groove block 17 is fixedly installed. On the inner wall of the top of the notch of the second support groove block 17, a mounting block 21 is fixedly installed. In the center of the bottom of the mounting block 21, a fourth threaded hole is opened, and a fourth threaded rod 20 is threadedly connected to the fourth threaded hole. The top of the fourth threaded rod 20 is rotatably connected to a hinge mechanism, and the top of the hinge mechanism is fixedly installed with a second support rod 18. The top of the second support rod 18 is fixedly connected to one end of the bottom of the installation top plate 6. An lifting mechanism is arranged on the top of the installation top plate 6. At the bottom of one end of the three support vertical rods 2 away from the second support groove block 17, the same second support cross bar 11 is fixedly installed. At one end of the second support cross bar 11 away from the second support groove block, a lifting mechanism is provided.

[0046] Specifically, the lifting mechanism includes three support blocks 7 fixedly installed on the top of the installation top plate 6. The support blocks 7 are arranged in one-to-one correspondence with the support vertical rods 2. At the end of the top of the support block 7 away from the second support groove block 17, a first support rod 8 is fixedly installed. At the bottom of the first support rod 8, a lifting wheel 19 is fixedly installed. A lifting rope is wound around the lifting wheel 19. One end of the lifting rope is fixedly installed with a traction motor, and the other end of the lifting rope is fixedly installed with a hook. When specifically hoisting the ring plate, the hook is hung on a hanging ring preset on the top of the outer side of the ring plate, and the traction motor drives the lifting rope to take up the line to effectively lift the ring plate.

[0047] The lifting mechanism includes three first threaded rods 10 corresponding to the lifting wheels 19 one by one. At one end of the second support cross bar 11, a first threaded hole is opened, and the first threaded rod 10 is threadedly connected to the first threaded hole. At the end of the first threaded rod 10 away from the second support groove block 17, a support groove plate 9 is rotatably connected. Specifically, the ring plate is lifted by the support groove plate 9, and the position of the support groove plate 9 is adjusted by rotating the first threaded rod 10 to adapt to the size of the ring plate and facilitate the stable placement of the ring plate in the support groove plate 9.

[0048] Furthermore, an installation groove is formed at the central position of the bottom of the support groove plate 9. The inner wall of the bottom of the installation groove is fixedly provided with a first support spring 30. The top of the first support spring 30 is fixedly provided with a limiting rod 31. Limiting blocks 29 are fixedly installed at the bottom of both sides of the limiting rod 31. A clamping block 28 is hinged to the inner wall of one side of the installation groove through a torsion spring. The bottom of the clamping block 28 is clamped with the top of the limiting block 29. The clamping block 28 is arranged to rotate downward and is locked upward. The ring plate is vertically placed in the notch of the support groove plate 9. Then, the ring plate is inclined under the action of the top plate 5. At this time, the inner groove block 27 will also be inclined, so that the clamping block 28 is stably fixed on the limiting block 29, realizing effective fixation of the ring plate.

[0049] The top of the limiting rod 31 is fixedly provided with an inner groove block 27. Connecting rods 36 are hinged to the top of both sides of the inner groove block 27. The two sides of the top of the notch of the support groove plate 9 are both arranged as inclined surfaces. Sliding grooves are formed on both inclined surfaces. Sliders 37 are slidably arranged in the sliding grooves. The top of the slider 37 is slidably connected with a second rubber pad 38. The bottom of the slider 37 is hinged to the top of the connecting rod 36. The ring plate is hoisted into the inner groove block 27. The inner groove block 27 descends under the influence of the gravity of the ring plate. Then, the second threaded rod 15 and the third threaded rod 16 on the device are rotated to squeeze the ring plate, so that the ring plate is inclined. At this time, the inner groove block 27 will rotate accordingly. During the rotation of the inner groove block 27, the inner groove block 27 will drive the sliders 37 and the second rubber pads 28 on both sides to slide down, and clamp the ring plate inside the notch of the support groove block 9, further improving the fixation of the ring plate and preventing the ring plate from falling off the support groove block 9 due to bumps during transportation, causing unnecessary losses.

[0050] On the inner wall of one side of the support groove plate 9 away from the first threaded rod 10, a sleeve 34 inclined upward is fixedly installed. A plug rod 35 is inserted into the sleeve 34. A second support spring 33 is fixedly connected between the plug rod 35 and the support groove plate 9. One end of the plug rod 35 away from the second support spring 33 is hinged with a first rubber pad 32. An opening is formed on one side of the inner groove block 27 close to the sleeve 34. The first rubber pad 32 is located in the opening. During the rotation of the inner groove block 27, the first rubber pad 32 on the plug rod 35 will squeeze the bottom of the ring plate to realize the fixation of the ring plate.

[0051] At the top and middle positions of one end of the supporting vertical rod 2 away from the second supporting groove block 17, first supporting crossbars 3 are fixedly installed. On both sides of one end of the first supporting crossbar 3, sliding grooves are provided, and movable plates 4 are slidably arranged in the sliding grooves. A second threaded hole is provided at one end of the movable plate 4, and a second threaded rod 15 is threadedly connected in the second threaded hole. A third threaded hole is provided in the middle of one end of the first supporting crossbar 3, and a third threaded rod 16 is threadedly connected in the third threaded hole. One end of the second threaded rod 15 and the third threaded rod away from the second supporting groove block 17 are rotatably connected to a top plate 5. By using the fourth threaded rod 20 to lift the second supporting rod 18, the perpendicularity adjustment of the entire surface can be realized, aligning the ring plate with the surrounding tank wall, and adjusting the perpendicularity, roundness and joint gap of the ring plate to be installed. Subsequently, the worker performs spot welding fixation and weld construction and other work.

[0052] It is worth mentioning that one end of the top plate 5 away from the second threaded rod 15 is arranged in an arc shape. When using the top plate 5 to press against the surface of the ring plate, full contact between the top plate 5 and the ring plate can be realized, improving the stability of the top plate 5 pressing against the ring plate.

[0053] Connecting blocks 14 are fixedly installed at one ends of the third threaded rod 16 and the second threaded rod 15 close to the second supporting groove block 17, and a connecting rod 22 is hinged between two adjacent connecting blocks 14. When the third threaded rod 16 drives the top plate to move, the two second threaded rods 15 will move to both sides along with the movable plate 4, enabling the three top plates 5 to effectively fit against the surface of the ring plate, improving the stability of the ring plate transportation.

[0054] A transportation method for a ring plate transportation device used in the reverse installation method of a large storage tank includes the following steps:

[0055] S1: First, move the transportation mechanism to the position of the plate taking opening 25, and transport all the ring plates for the large storage tank to the position of the plate taking opening 25 by truck;

[0056] S2: Use the hanging wheel structure to lift the ring plate onto the supporting mechanism, drive the top plate 5 to move by the second threaded rod 15 and the third threaded rod 16, and press the ring plate tightly by the top plate 5;

[0057] S3: Then, move the transportation mechanism 23 along the track 24 on the periphery of the large storage tank to transport the ring plate to the installation position;

[0058] S4: Lift the ring plate by the hanging wheel structure again, and push the ring plate to the installation position by the second threaded rod 15 and the third threaded rod 16 for the next installation operation.

[0059] Working principle: When in use, first move this device to the position of the plate-taking opening 25 of the track 24, then use the lifting mechanism to lift the top of the coiled plates stacked together, and then move the bottom of the coiled plates into the lifting mechanism. The coiled plates are lifted by the lifting mechanism, and then the coiled plates are transported to the designated position by the transfer mechanism 23. Then, the coiled plates are lifted again by the lifting mechanism, and the bottom of the coiled plates falls off the lifting mechanism, realizing the very convenient installation of the coiled plates.

[0060] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A ring plate transfer device for the inverted installation method of a large storage tank, comprising a tank body (26) and a transfer mechanism (23), characterized in that, On the ground outside the circumference of the tank body (26), an annular track (24) is provided. The transfer mechanism (23) is movably arranged on the track. The transfer mechanism (23) includes a support bottom plate (1). At the four corners of the bottom of the support bottom plate (1), rollers (12) are provided, and the rollers (12) are rotatably arranged on the track (24). On the top of the support bottom plate (1), three first support groove blocks (13) are fixedly installed, and the three first support groove blocks (13) are located on the same straight line. A support vertical rod (2) is hinged in the first support groove block (13). The tops of the three support vertical rods (2) are fixedly installed with the same installation top plate (6). At one end of the top of the support bottom plate (1), a second support groove block (17) is fixedly installed. At the inner wall of the top of the notch of the second support groove block (17), a mounting block (21) is fixedly installed. At the center of the bottom of the mounting block (21), a fourth threaded hole is opened, and a fourth threaded rod (20) is connected to the fourth threaded hole by thread. The top of the fourth threaded rod (20) is rotatably connected to a hinge mechanism, and the top of the hinge mechanism is fixedly installed with a second support rod (18). The top of the second support rod (18) is fixedly connected to one end of the bottom of the installation top plate (6). A lifting mechanism is arranged on the top of the installation top plate (6). At the bottom of one end of the three support vertical rods (2) away from the second support groove block (17), the same second support cross bar (11) is fixedly installed. At one end of the second support cross bar (11) away from the second support groove block, a lifting mechanism is arranged; The lifting mechanism includes three first threaded rods (10) corresponding to the lifting wheels (19) one by one. At one end of the second support cross bar (11), a first threaded hole is opened, and the first threaded rod (10) is connected to the first threaded hole by thread. The end of the first threaded rod (10) away from the second support groove block (17) is rotatably connected to a support groove plate (9); At the center of the bottom of the support groove plate (9), an installation groove is opened. At the inner wall of the bottom of the installation groove, a first support spring (30) is fixedly installed. The top of the first support spring (30) is fixedly installed with a limiting rod (31). At the bottom of both sides of the limiting rod (31), limiting blocks (29) are fixedly installed. At one inner wall of the installation groove, a clamping block (28) is hinged by a torsion spring. The bottom of the clamping block (28) is clamped with the top of the limiting block (29). The clamping block (28) is arranged to rotate downward, and the clamping block (28) is arranged to be locked upward; At the top of the limiting rod (31), an inner groove block (27) is fixedly installed. At the top of both sides of the inner groove block (27), connecting rods (36) are hinged. The top of the notch of the support groove plate (9) is arranged in an inclined plane on both sides. On both inclined planes, sliding grooves are opened. In the sliding grooves, sliding blocks (37) are slidably arranged. The top of the sliding block (37) is slidably connected to a second rubber pad (38). The bottom of the sliding block (37) is hinged to the top of the connecting rod (36).

2. The circumferential plate transfer device for the large storage tank reverse installation method according to claim 1, characterized in that, The lifting mechanism comprises three support blocks (7) fixedly mounted on the top of the mounting top plate (6), the support blocks (7) being arranged in one-to-one correspondence with the support vertical rods (2), a first support rod (8) being fixedly mounted on one end of the top of the support block (7) away from the second support slot block (17), a hanging wheel (19) being fixedly mounted on the bottom of the first support rod (8), a hanging rope being wound around the hanging wheel (19), a traction motor being fixedly mounted on one end of the hanging rope, and a hook being fixedly mounted on the other end of the hanging rope.

3. A ring plate transfer device for the inverted installation method of large storage tanks according to claim 1, characterized in that, A sleeve (34) arranged obliquely upward is fixedly mounted on the inner wall of the support slot plate (9) at a side away from the first threaded rod (10), and an insertion rod (35) is inserted into the sleeve (34); a second support spring (33) is fixedly connected between the insertion rod (35) and the support slot plate (9); a first rubber pad (32) is hingedly connected to one end of the insertion rod (35) away from the second support spring (33); an opening is formed on a side of the inner slot block (27) close to the sleeve (34), and the first rubber pad (32) is located in the opening.

4. The ring plate transfer device for the large storage tank reverse installation method according to claim 3, characterized in that, A first support cross bar (3) is fixedly mounted at the top and middle of one end of the support vertical bar (2) away from the second support slot block (17); sliding slots are provided at both sides of one end of the first support cross bar (3); movable plates (4) are slidably arranged in the sliding slots; a second threaded hole is provided at one end of the movable plate (4); a second threaded rod (15) is threadedly connected to the second threaded hole; a third threaded hole is provided in the middle of one end of the first support cross bar (3); a third threaded rod (16) is threadedly connected to the third threaded hole; and the second threaded rod (15) and the third threaded rod are rotatably connected to the top plate (5) at one end away from the second support slot block (17).

5. The ring plate transfer device for the large storage tank reverse installation method according to claim 4, characterized in that, One end of the top plate (5) away from the second threaded rod (15) is arranged in the form of an arc surface.

6. The ring plate transfer device for the large storage tank reverse installation method according to claim 5, characterized in that, A connecting block (14) is fixedly mounted on one end of the third threaded rod (16) and the second threaded rod (15) close to the second supporting slot block (17), and a connecting rod (22) is hinged between two adjacent connecting blocks (14).

7. A transfer method of a ring plate transfer device for the reverse installation method of large storage tanks according to any one of claims 1-6, characterized in that, The following steps are involved: S1: First, the transfer mechanism is moved to the position of the plate taking port (25), and all the ring plates for the large storage tank are transported to the position of the plate taking port (25) by a truck; S2: The ring plate is lifted onto the lifting mechanism using the lifting wheel structure, the top plate is driven to move by the second threaded rod (15) and the third threaded rod (16), and the ring plate is tightened by the top plate (5); S3: The transfer mechanism (23) then moves along the track (24) around the periphery of the large storage tank to transport the ring plate to the installation location; S4: The ring plate is then lifted by the lifting wheel structure, and the second threaded rod (15) and the third threaded rod (16) push the ring plate to the installation position to carry out the next installation operation.

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