Disassembling and assembling device for large-diameter nut at lower pipe opening

Abstract

The utility model provides a device for disassembling and assembling a large-diameter nut at a lower pipe opening. Comprising a lifting table, a fixing assembly, a rotating assembly, a wrench supporting plate and a wrench. The fixing assembly is fixedly assembled on the upper portion of the lifting table, the rotating assembly is coaxially arranged on the upper portion of the fixing assembly, the periphery of the lower pipe opening assembly is sleeved with the wrench supporting plate, and the wrench is placed on the upper portion of the wrench supporting plate. The rotating assembly and the lower pipe orifice assembly are clamped and matched by lifting the lifting table, the lower pipe orifice assembly is clamped and rotated by using the wrench, the lifting table is slowly lowered until the lower pipe orifice assembly is completely separated from the extraction tower tank body, the wrench supporting plate and the wrench are disassembled, and the lower pipe orifice assembly is laterally placed on a carrier loader to be transported away from a construction site. And safe and effective disassembly and transportation of the lower pipe opening assembly are achieved. The device is easy and convenient to operate and convenient to disassemble, assemble and maintain, the labor intensity and construction risks of constructors are reduced, the construction efficiency and quality are effectively improved, the device can be repeatedly used, and the construction cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of overhaul tooling of chemical production equipment, in particular to a device for disassembling and assembling large-diameter nut of lower pipe opening. BACKGROUND

[0002] The extraction tower is a kind of liquid-liquid mass transfer equipment commonly used in chemical industry, petroleum refining, environmental protection and other industrial departments, which has huge volume and complex peripheral pipeline, and various pipe openings are connected to the tower body of the extraction tower through customized pipe opening assembly.Currently, when the extraction tower is overhauled, the pipe opening assembly of the extraction tower needs to be manually disassembled, and the disassembled pipe opening assembly is transported away from the construction site to complete the next step of overhaul.In the actual construction process, since the pipe opening assembly is usually a cylindrical structure, its outer wall is smooth and not easy to grab, and it is not convenient to apply external force to it.At the same time, the pipe opening assembly is large in size and heavy in weight, and the construction personnel are not easy to move it, and it is easy to overturn during the moving process, reducing the safety of the construction personnel during construction.Therefore, how to safely and effectively disassemble and transport the lower pipe opening assembly of the extraction tower has become a problem to be solved. SUMMARY

[0003] In order to realize safe and effective disassembly and transportation of the lower pipe opening assembly of the extraction tower, the utility model provides a device for disassembling and assembling large-diameter nut of lower pipe opening.The device is provided with a wrench support plate around the lower pipe opening assembly, the rotating assembly is connected with the lower pipe opening assembly by lifting the lifting platform, the lower pipe opening assembly is clamped and rotated by the wrench, and the lifting platform is slowly lowered until the lower pipe opening assembly is completely separated from the extraction tower body, thereby solving the technical problem that the traditional process method cannot safely disassemble the lower pipe opening assembly.

[0004] The utility model adopts the following solutions to solve the technical problems:

[0005] A device for disassembling and assembling large-diameter nut of lower pipe opening is arranged at the lower part of the lower pipe opening assembly, the lower pipe opening assembly is sleeved on the lower part of the extraction tower body, and the device for disassembling and assembling large-diameter nut of lower pipe opening comprises a lifting platform arranged horizontally on the construction site and capable of moving up and down in the vertical direction for installation, a fixed assembly fixedly arranged on the upper part of the lifting platform for supporting and positioning, a rotating assembly coaxially arranged on the upper part of the fixed assembly and capable of rotating around the central axis, a wrench support plate sleeved around the lower pipe opening assembly and fixed in position in the vertical direction, and a wrench placed on the upper part of the wrench support plate and capable of clamping the periphery of the lower pipe opening assembly.

[0006] The fixed assembly disclosed by the embodiment comprises a fixed frame fixed to the upper portion of the lifting platform and having a certain height, a fixed supporting plate fixed to the upper portion of the fixed frame and having a through hole in the center thereof, a fixed shaft sleeve fixed to the lower portion of the fixed supporting plate and coaxially arranged with the through hole of the fixed supporting plate, and a fixed bolt arranged through the fixed shaft sleeve, the upper end of the fixed bolt being assembled and connected with the rotating assembly, and the lower end of the fixed bolt being assembled and connected with the fixed shaft sleeve.

[0007] The rotating assembly disclosed by the embodiment comprises a rotating tray arranged on the upper portion of the fixed supporting plate, the upper surface of the rotating tray being processed with an interface matched with the shape of the lower pipe opening assembly, the center of the rotating tray being provided with a through hole with a bearing, and the fixed bolt being rotationally assembled in the bearing.

[0008] The wrench supporting plate disclosed by the embodiment comprises a ring seat designed in a circular ring structure and sleeved on the periphery of the lower pipe opening assembly, limiting nuts arranged on the lower portion of the ring seat and fixedly connected with the ring seat, and limiting bolts assembled in the limiting nuts, the locking direction of the limiting bolts being directed to the lower pipe opening assembly, and the limiting bolts being arranged in pairs to limit the position of the ring seat.

[0009] Positive effects:

[0010] The fixed assembly is fixedly assembled on the upper portion of the lifting platform, the rotating assembly is coaxially arranged on the upper portion of the fixed assembly, the wrench supporting plate is sleeved on the periphery of the lower pipe opening assembly, and the wrench is placed on the upper portion of the wrench supporting plate. By lifting the lifting platform, the rotating assembly is clamped and matched with the lower pipe opening assembly, the wrench is used to clamp and rotate the lower pipe opening assembly, the lifting platform is slowly lowered until the lower pipe opening assembly is completely separated from the extraction tower tank body, the wrench supporting plate and the wrench are removed, the lower pipe opening assembly is laid on one side and transported to the construction site, the safe and effective disassembly and transportation of the lower pipe opening assembly are realized.

[0011] The device is suitable to be used as a device for disassembling and assembling a large-diameter nut of a lower pipe opening. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 The figure is a structural schematic view of the embodiment of the application;

[0013] Figure 2 The figure is a front view of the embodiment of the application;

[0014] Figure 3 The figure is a top view of the embodiment of the application;

[0015] Figure 4 Figure 3 is a partial cross-sectional view of the embodiment A of the present application;

[0016] Figure 5 Figure 4 is a structural schematic view of the lower tube opening assembly of the embodiment of the present application.

[0017] In the drawings,

[0018] 10. The extraction tower tank body;

[0019] 20. The lower tube opening assembly;

[0020] 30. The lifting platform;

[0021] 40. The fixing assembly,

[0022] 41. The fixing frame,

[0023] 42. The fixing support plate,

[0024] 43. The fixing shaft sleeve,

[0025] 44. The fixing bolt;

[0026] 50. The rotating assembly,

[0027] 51. The rotating tray,

[0028] 52. The pulley assembly;

[0029] 60. The wrench support plate,

[0030] 61. The ring seat,

[0031] 62. The limiting nut,

[0032] 63. The limiting bolt;

[0033] 70. The wrench. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the scope of the present application.

[0035] As shown in the figure, a device for disassembling and assembling large-diameter nut of lower nozzle, which is arranged at the lower part of lower nozzle assembly 20, the lower nozzle assembly 20 is sleeved on the lower part of extraction tower tank body 10, the device for disassembling and assembling large-diameter nut of lower nozzle comprises:

[0036] Lifting platform 30 is horizontally arranged in the construction site and can move up and down along the vertical direction to provide installation; fixed assembly 40 is fixedly arranged on the upper part of lifting platform 30 to provide support and positioning;

[0037] Rotary assembly 50 is coaxially arranged on the upper part of fixed assembly 40 and rotates around the central axis; wrench support plate 60 is sleeved on the periphery of lower nozzle assembly 20 and is fixed in position in the vertical direction;

[0038] Wrench 70 is placed on the upper part of wrench support plate 60 and clamps the periphery of lower nozzle assembly 20;

[0039] When lifting platform 30 rises to the upper part of rotary assembly 50 and contacts the lower part of lower nozzle assembly 20, rotary assembly 50 is rotated to be clamped with lower nozzle assembly 20.

[0040] Specifically, lower nozzle assembly 20 is sleeved on the lower part of extraction tower tank body 10 by screwing and can be disassembled and assembled by screwing; lifting platform 30 is horizontally arranged in the construction site below lower nozzle assembly 20 and can move up and down along the vertical direction to provide installation; fixed assembly 40 is fixedly arranged on the upper part of lifting platform 30 by bolt connection to provide support and positioning; rotary assembly 50 is coaxially arranged on the upper part of fixed assembly 40 and rotates around the central axis to support and assist the screwing action when screwing lower nozzle assembly 20; wrench support plate 60 is sleeved on the periphery of lower nozzle assembly 20 and is fixed in position in the vertical direction to limit the downward movement of wrench 70 when screwing lower nozzle assembly 20; wrench 70 is placed on the upper part of wrench support plate 60 and clamps the periphery of lower nozzle assembly 20 to screw lower nozzle assembly 20; when lifting platform 30 rises to the upper part of rotary assembly 50 and contacts the lower part of lower nozzle assembly 20, rotary assembly 50 is rotated to be clamped with lower nozzle assembly 20, so that lower nozzle assembly 20 and rotary assembly 50 rotate synchronously.

[0041] Fixed assembly 40 comprises:

[0042] Fixed frame 41 is fixedly arranged on the upper part of lifting platform 30 and has a certain height;

[0043] A fixed bracket 41 is arranged on the upper portion of the lifting platform 30, and a fixed support plate 42 is arranged on the upper portion of the fixed bracket 41.

[0044] A fixed shaft sleeve 43 is arranged on the lower portion of the fixed support plate 42 coaxially with the through hole of the fixed support plate 42.

[0045] A fixed bolt 44 is arranged through the fixed shaft sleeve 43, and the upper end of the fixed bolt 44 is connected with the rotating assembly 50, and the lower end of the fixed bolt 44 is connected with the fixed shaft sleeve 43.

[0046] Specifically, the fixed bracket 41 is arranged on the upper portion of the lifting platform 30 by bolt connection, and has a certain height; the fixed support plate 42 is arranged on the upper portion of the fixed bracket 41 in a circular ring structure, and a through hole is arranged at the center of the fixed support plate 42; the fixed shaft sleeve 43 is arranged coaxially with the through hole of the fixed support plate 42, and the upper end of the fixed shaft sleeve 43 is arranged on the lower portion of the fixed support plate 42 by welding, and the lower end of the fixed shaft sleeve 43 extends into the fixed bracket 41 to facilitate assembly; the fixed bolt 44 is arranged through the fixed shaft sleeve 43, and the upper end of the fixed bolt 44 is connected with the rotating assembly 50, and the lower end of the fixed bolt 44 is connected with the fixed shaft sleeve 43 by a fastening nut.

[0047] The rotating assembly 50 comprises:

[0048] A rotating tray 51 is arranged on the upper portion of the fixed support plate 42, and the upper surface of the rotating tray 51 is processed with an interface matched with the shape of the lower pipe opening assembly 20, and a through hole with a bearing is arranged at the center of the rotating tray 51, and the fixed bolt 44 is rotatably arranged in the bearing;

[0049] A pulley assembly 52 is arranged on the lower portion of the rotating tray 51 and is fixedly connected with the rotating tray 51, so that the rotating tray 51 can rotate around the central axis.

[0050] Specifically, the rotating tray 51 is arranged on the upper portion of the fixed support plate 42, and the upper surface of the rotating tray 51 is processed with an interface matched with the shape of the bottom end of the lower pipe opening assembly 20, and the rotating tray 51 is matched and rotated synchronously with the lower pipe opening assembly 20 when the lower pipe opening assembly 20 is screwed, and the rotating tray 51 provides support for the lower pipe opening assembly 20; a through hole with a bearing is arranged at the center of the rotating tray 51, and the fixed bolt 44 is rotatably arranged in the bearing, so as to define the rotation center of the rotating tray 51, and ensure that the fixed assembly 40 is always in a stationary state when the rotating tray 51 rotates; the pulley assembly 52 is arranged on the lower portion of the rotating tray 51, and the upper end of the pulley assembly 52 is fixedly connected with the rotating tray 51 by welding, so that the rotating tray 51 can rotate around the central axis.

[0051] The wrench support plate 60 comprises:

[0052] A ring seat 61 is designed in a circular ring structure and is sleeved on the periphery of the lower pipe opening assembly 20.

[0053] Limiting nuts 62 are arranged in an array at the lower part of the ring seat 61 and are fixedly connected thereto.

[0054] Limiting bolts 63 are assembled in the limiting nuts 62, the locking direction of which points to the lower pipe opening assembly 20, and are arranged in pairs to limit the position of the ring seat 61.

[0055] Specifically, the ring seat 61 is designed in a circular ring structure and is sleeved on the periphery of the lower pipe opening assembly 20; the limiting nuts 62 are arranged in an array at the lower part of the ring seat 61, the upper end of which is fixedly connected to the ring seat 61 by welding, and the screw hole direction points to the lower pipe opening assembly 20; the limiting bolts 63 are correspondingly assembled in the limiting nuts 62, the locking direction of which is consistent with the screw hole direction of the limiting nuts 62, and both point to the lower pipe opening assembly 20; and the limiting bolts 63 are arranged in pairs, each pair of mutually symmetrical limiting bolts 63 uniformly applies pressure to the outer wall of the lower pipe opening assembly 20, so that the position of the ring seat 61 on the lower pipe opening assembly 20 is balanced, thereby limiting the downward movement of the wrench 70 when it is screwed on the lower pipe opening assembly 20.

[0056] The features of the embodiment are as follows:

[0057] The embodiment fixes and assembles the fixing assembly 40 on the upper part of the lifting platform 30, coaxially arranges the rotating assembly 50 on the upper part of the fixing assembly 40, sleeves the wrench support plate 60 on the periphery of the lower pipe opening assembly 20, and places the wrench 70 on the upper part of the wrench support plate 60. In actual use, the rotating assembly 50 is clamped and matched with the lower pipe opening assembly 20 by raising the lifting platform 30, the wrench 70 clamps and rotates the lower pipe opening assembly 20, and the lifting platform 30 is slowly lowered until the lower pipe opening assembly 20 is completely separated from the extraction tower tank body 10, the wrench support plate 60 and the wrench 70 are removed, and the lower pipe opening assembly 20 is placed on the side of the transport vehicle and transported away from the construction site, thereby realizing safe and effective disassembly and transportation of the lower pipe opening assembly 20. Through this technical solution, the labor intensity and construction risk of the construction personnel are reduced, the construction efficiency and quality are effectively improved, the device is simple and convenient to operate, easy to disassemble and maintain, and can be repeatedly used, and the construction cost is greatly reduced.

[0058] Finally, it should be noted that:

[0059] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features thereof can be replaced equivalently, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A device for disassembling large-diameter nut of lower nozzle, arranged in the lower part of the lower nozzle assembly (20) which is sleeved on the lower part of the extraction tower tank body (10), characterized in that: it comprises: a lifting platform (30) horizontally arranged in the construction site and capable of moving up and down in the vertical direction to provide installation; a fixed assembly (40) fixedly arranged on the upper part of the lifting platform (30) to provide support and positioning; a rotating assembly (50) coaxially arranged on the upper part of the fixed assembly (40) and capable of rotating around the central axis; a wrench support plate (60) sleeved on the periphery of the lower nozzle assembly (20) and fixed in position in the vertical direction; and a wrench (70) placed on the upper part of the wrench support plate (60) and clamping the periphery of the lower nozzle assembly (20); wherein, when the lifting platform (30) rises to the upper part of the rotating assembly (50) and contacts the lower part of the lower nozzle assembly (20), the rotating assembly (50) is rotated to be engaged with the lower nozzle assembly (20).

2. The device for disassembling large-diameter nut of lower nozzle according to claim 1, characterized in that: the fixed assembly (40) comprises: a fixed frame (41) fixedly arranged on the upper part of the lifting platform (30) and having a certain height; a fixed support plate (42) fixedly arranged on the upper part of the fixed frame (41) and having a through hole in the center; a fixed shaft sleeve (43) fixedly arranged on the lower part of the fixed support plate (42) and coaxially arranged with the through hole of the fixed support plate (42); and a fixed bolt (44) arranged through the fixed shaft sleeve (43) and connected with the rotating assembly (50) at the upper end and connected with the fixed shaft sleeve (43) at the lower end.

3. The device for disassembling large-diameter nut of lower nozzle according to claim 2, characterized in that: the rotating assembly (50) comprises: a rotating tray (51) arranged on the upper part of the fixed support plate (42) and having an interface on the upper surface which is matched with the shape of the lower nozzle assembly (20), and a through hole with a bearing in the center, and the fixed bolt (44) is rotatably arranged in the bearing; and a pulley assembly (52) arrayed on the lower part of the rotating tray (51) and fixedly connected with the rotating tray (51) so that the rotating tray (51) can rotate around the central axis.

4. The device for disassembling large-diameter nut of lower nozzle according to claim 3, characterized in that: the wrench support plate (60) comprises: a ring seat (61) designed in a circular ring structure and sleeved on the periphery of the lower nozzle assembly (20); a limiting nut (62) arrayed on the lower part of the ring seat (61) and fixedly connected with the ring seat (61); and a limiting bolt (63) assembled in the limiting nut (62) and arranged in pairs to lock the ring seat (61) in position with the locking direction pointing to the lower nozzle assembly (20). ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Images