Disassembling and assembling device for upper pipe opening large-diameter nut

Abstract

The device comprises a base, a frame body, a hoisting assembly, a limiting rope, a bearing assembly and a square clamp, the frame body is fixedly arranged on the base, the hoisting assembly is assembled on the top of the frame body, the lower end and the rear end of the hoisting assembly are connected with the two ends of the limiting rope respectively, and the limiting rope is connected with the bearing assembly. The bottom of the upper pipe opening assembly is sleeved with the bearing assembly, and the upper portion is provided with a square clamp. The front end of the hoisting assembly and the upper pipe orifice assembly are coaxially arranged by adjusting the length of the limiting rope, then the bearing assembly is connected with the front end of the hoisting assembly so as to cooperatively bear the upper pipe orifice assembly, the upper pipe orifice assembly is clamped and rotated by using a square clamp, and meanwhile, the hoisting assembly is slowly lifted until the upper pipe orifice assembly is completely separated from the extraction tower tank body. And the supporting assembly and the square clamp are disassembled, and safe and effective disassembly of the upper pipe opening assembly is achieved. The device is easy and convenient to operate and convenient to disassemble, assemble and maintain, reduces the labor intensity of constructors and construction risks, improves the construction efficiency and quality, is repeatedly used, and reduces the construction cost.

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 upper pipe opening. BACKGROUND

[0002] The extraction column is a kind of liquid-liquid mass transfer equipment commonly used in chemical industry, petroleum refining, environmental protection and other industrial departments, and the volume is huge and the peripheral pipeline is complex, and each pipe opening is connected on the column body of the extraction column by custom pipe opening assembly.At present, when the extraction column is overhauled, the pipe opening assembly of the extraction column is 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 the risk of overturning is easy to occur in the moving process, which reduces the safety of construction personnel construction.Therefore, how to safely and effectively disassemble and transport the upper pipe opening assembly of the extraction column has become a problem to be solved. SUMMARY

[0003] In order to realize safe and effective disassembly and transportation of the upper pipe opening assembly of the extraction column, the utility model provides a device for disassembling and assembling large-diameter nut of upper pipe opening.The device adjusts the length of the limiting rope so that the front end of the hoisting assembly is coaxially arranged at the upper part of the upper pipe opening assembly, then the supporting assembly sleeved on the periphery of the upper pipe opening assembly is connected with the front end of the hoisting assembly to cooperate with the bearing of the upper pipe opening assembly, the square clamp is used to clamp and rotate the upper pipe opening assembly, and the hoisting assembly is slowly lifted at the same time until the upper pipe opening assembly is completely separated from the extraction column body, which solves the technical problem that the traditional process method cannot safely disassemble the upper pipe opening assembly.

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

[0005] The utility model provides a device for dismounting and mounting large-diameter nut of upper pipe mouth, which is arranged on the upper part of the upper pipe mouth assembly, the upper pipe mouth assembly is sleeved on the upper part of the extraction tower body, and the device for dismounting and mounting large-diameter nut of upper pipe mouth comprises a base arranged horizontally on the construction site beside the extraction tower body to provide installation, a frame body with one end fixed on the base and the other end vertically extending upwards to the lower part of the upper pipe mouth assembly to provide support, a hoisting assembly with a T-shaped structure, the lower end of which is assembled on the top of the frame body, the front end of which extends vertically upwards to the center axis of the upper pipe mouth assembly, and the rear end of which extends away from the upper pipe mouth assembly, a limiting rope with two ends connected to the lower end and the rear end of the hoisting assembly to lock the unfolding angle of the hoisting assembly, a supporting assembly sleeved on the peripheral bottom of the upper pipe mouth assembly, the upper end of which is assembled and connected with the hoisting assembly to limit the position of the upper pipe mouth assembly, and a square wrench assembled on the upper part of the upper pipe mouth assembly to screw and dismount the upper pipe mouth assembly, wherein when the square wrench is used to screw the upper pipe mouth assembly, the length of the limiting rope is adjusted to make the hoisting assembly drive the upper pipe mouth assembly to rise until it is completely separated from the extraction tower body.

[0006] The hoisting assembly comprises a supporting rod with one end assembled on the top of the frame body and the other end extending upwards and deviated towards the upper pipe mouth assembly, a hoisting rod with the middle part rotatably assembled on the top end of the supporting rod, the front end of which extends vertically upwards to the center axis of the upper pipe mouth assembly, and the rear end of which extends away from the upper pipe mouth assembly, and the limiting rope is connected to the supporting rod and the hoisting rod.

[0007] The supporting assembly comprises a ring seat with a circular ring structure, which is sleeved on the bottom of the upper pipe mouth assembly, and the inner diameter of the ring seat is greater than the outer diameter of the upper pipe mouth assembly, an extension frame with one end fixed on the upper part of the ring seat and the other end vertically extending upwards and assembled with the lower end of the hoisting chain, a limiting seat arranged in an array with the center of the ring seat as the center on the lower part of the ring seat and fixedly connected with the ring seat, and a limiting bolt assembled in the limiting seat, which is horizontally directed to the center axis of the extraction tower body, and is in pairs clamped on the bottom of the upper pipe mouth assembly to limit the up-down position of the upper pipe mouth assembly.

[0008] Positive effects:

[0009] The utility model discloses a nut dismounting device for upper pipe mouth large -diameter, which comprises a base, a frame body, a lifting assembly, a supporting assembly and a square tongs.

[0010] The device is suitable for dismounting and transporting the nut of the upper pipe mouth. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 The utility model discloses a nut dismounting device for upper pipe mouth large -diameter, which comprises a base, a frame body, a lifting assembly, a supporting assembly and a square tongs.

[0012] Figure 2 The utility model discloses a nut dismounting device for upper pipe mouth large -diameter, which comprises a base, a frame body, a lifting assembly, a supporting assembly and a square tongs.

[0013] Figure 3 The utility model discloses a nut dismounting device for upper pipe mouth large -diameter, which comprises a base, a frame body, a lifting assembly, a supporting assembly and a square tongs.

[0014] Figure 4 The utility model discloses a nut dismounting device for upper pipe mouth large -diameter, which comprises a base, a frame body, a lifting assembly, a supporting assembly and a square tongs.

[0015] In the drawing,

[0016] 10. the extraction tower jar body;

[0017] 20. the upper pipe mouth subassembly;

[0018] 30. the base;

[0019] 40. the frame body;

[0020] 50. the lifting assembly,

[0021] 51. the support pole, 52. the lifting rod, 53. the lifting tray, 54. the lifting chain;

[0022] 60. the limiting rope;

[0023] 70. the supporting assembly,

[0024] 71. the ring seat, 72. the extension frame, 73. the limiting seat, 74. the limiting bolt;

[0025] 80. Side pliers. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described 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 of ordinary skill 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 other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the present application.

[0027] As shown in the figure, a device for disassembling and assembling large-diameter nut of upper pipe mouth is arranged at the upper part of an upper pipe mouth assembly 20, the upper pipe mouth assembly 20 is sleeved on the upper part of an extraction tower body 10, and the device for disassembling and assembling large-diameter nut of upper pipe mouth comprises:

[0028] A base 30 is horizontally arranged in a construction site beside the extraction tower body 10 and is used for providing installation;

[0029] A frame body 40 is fixed at one end on the base 30 and vertically extends to the lower part of the upper pipe mouth assembly 20 on the other side, and is used for providing support;

[0030] A hoisting assembly 50 is designed in a T-shaped structure, the lower end is assembled on the top of the frame body 40, the front end extends to the center axis of the upper pipe mouth assembly 20, and the rear end extends away from the upper pipe mouth assembly 20;

[0031] A limiting rope 60 is connected at both ends to the lower end and the rear end of the hoisting assembly 50, and is used for locking the unfolding angle of the hoisting assembly 50;

[0032] A supporting assembly 70 is sleeved on the outer periphery of the lower part of the upper pipe mouth assembly 20, the upper end is assembled and connected with the hoisting assembly 50 and cooperates to limit the position of the upper pipe mouth assembly 20;

[0033] A side pliers 80 is assembled on the upper part of the upper pipe mouth assembly 20 and is used for screwing and disassembling the upper pipe mouth assembly 20;

[0034] When the side pliers 80 is used to screw the upper pipe mouth assembly 20, the length of the limiting rope 60 is adjusted, so that the hoisting assembly 50 drives the upper pipe mouth assembly 20 to rise until it is completely separated from the extraction tower body 10.

[0035] Specifically, the upper pipe mouth assembly 20 is sleeved on the upper part of the extraction tower tank body 10 by screwing, and can be disassembled and assembled by screwing; the base 30 is horizontally arranged on the construction site beside the extraction tower tank body 10, and is used for providing installation; one end of the frame body 40 is fixedly arranged on the base 30 by welding, and the other end vertically extends upwards beside the lower part of the upper pipe mouth assembly 20, and is used for providing support; the hoisting assembly 50 is designed in a T-shaped structure, the lower end is screwedly assembled on the top of the frame body 40, the front end extends upwards above the central axis of the upper pipe mouth assembly 20, and the rear end extends away from the upper pipe mouth assembly 20 so that the construction personnel can operate; the two ends of the limiting rope 60 are connected to the lower end and the rear end of the hoisting assembly 50 respectively, and are used for locking the unfolding angle of the hoisting assembly 50 and controlling the height of the front end of the hoisting assembly 50; the supporting assembly 70 is sleeved and arranged on the peripheral bottom of the upper pipe mouth assembly 20, the upper end is connected with the hoisting assembly 50 in a matched mode, when the upper pipe mouth assembly 20 is disassembled and separated from the extraction tower tank body 10, the supporting assembly 70 cooperates with the hoisting assembly 50 to bear and position the upper pipe mouth assembly 20; the square clamp 80 is clamped and assembled on the upper part of the upper pipe mouth assembly 20, and is used for screwing and disassembling the upper pipe mouth assembly 20; when the square clamp 80 is used to screw the upper pipe mouth assembly 20, the length of the limiting rope 60 is adjusted, the hoisting assembly 50 is lifted, the upper pipe mouth assembly 20 is lifted synchronously through the supporting assembly 70, and the upper pipe mouth assembly 20 is completely separated from the extraction tower tank body 10.

[0036] The hoisting assembly 50 comprises:

[0037] The supporting rod 51 is assembled on the top of the frame body 40, and the other end extends upwards and deviates from the upper pipe mouth assembly 20;

[0038] The hoisting rod 52 is rotationally assembled on the top end of the supporting rod 51, the front end extends upwards above the central axis of the upper pipe mouth assembly 20, and the rear end extends away from the upper pipe mouth assembly 20, and the limiting rope 60 is connected between the supporting rod 51 and the hoisting rod 52;

[0039] The hoisting disc 53 is assembled on the front end of the hoisting rod 52, and is coaxially arranged with the upper pipe mouth assembly 20;

[0040] The hoisting chain 54 is assembled on the lower end of the hoisting disc 53, and vertically and naturally falls downwards.

[0041] Specifically, one end of the support rod 51 is screwed and assembled at the top of the frame body 40, and the other end extends upward and is arranged towards the upper pipe opening assembly 20; the middle part of the boom 52 is rotatably assembled at the top end of the support rod 51 by a pin shaft, and swings up and down with the assembly point as the center, and the included angle between the support rod 51 and the vertical direction makes the boom 52 have a larger swing angle; the front end of the boom 52 extends directly above the central axis of the upper pipe opening assembly 20, and the rear end extends away from the upper pipe opening assembly 20 to facilitate the operation of the construction personnel; the limiting rope 60 connects the support rod 51 and the boom 52, and the distance between the support rod 51 and the boom 52 is controlled by adjusting the length of the limiting rope 60; the hanging disc 53 is movably assembled at the front end of the boom 52 by bolt connection, coaxially arranged with the upper pipe opening assembly 20 and always kept horizontal; a plurality of the hanging chains 54 are assembled at the lower end of the hanging disc 53, vertically and naturally downward to ensure that the upper pipe opening assembly 20 always keeps vertical state.

[0042] The supporting assembly 70 comprises:

[0043] The ring seat 71 is designed in a circular ring structure, is sleeved on the outer periphery of the bottom of the upper pipe opening assembly 20, and has an inner diameter greater than the outer diameter of the upper pipe opening assembly 20;

[0044] The extension frame 72 is fixed at one end to the upper part of the ring seat 71, and extends vertically upward at the other end and is assembled and connected with the lower end of the hanging chain 54;

[0045] The limiting seat 73 is arranged in an array at the lower part of the ring seat 71 with the center of the ring seat 71 as the center, and is fixedly connected therewith;

[0046] The limiting bolt 74 is assembled in the limiting seat 73, and the locking direction thereof is horizontally directed to the central axis of the extraction tower body 10, and is in pairs clamped at the bottom of the upper pipe opening assembly 20 to limit the up-down position thereof.

[0047] Specifically, the ring seat 71 is designed in a circular ring structure, is sleeved on the bottom periphery of the upper pipe opening assembly 20, and has an inner diameter greater than an outer diameter of the upper pipe opening assembly 20; one end of the extension frame 72 is fixedly arranged on the upper portion of the ring seat 71 by welding, the other end vertically extends upward and is assembled and connected with the lower end of the lifting chain 54, and is used for limiting the horizontal position of the upper pipe opening assembly 20; the limiting seats 73 are arranged on the lower portion of the ring seat 71 in a circular center of the ring seat 71 as a center and are fixedly connected with the ring seat 71 by welding, the threaded mounting holes of the limiting seats 73 are horizontally directed to the central axis of the ring seat 71, the limiting bolts 74 are assembled in the limiting seats 73 correspondingly, are horizontally directed to the central axis of the extraction tower body 10 in a locking direction, extend to the bottom center of the upper pipe opening assembly 20 by screwing, and the rear end of the limiting bolt 74 is located between the outer wall of the upper pipe opening assembly 20 and the outer wall of the extraction tower body 10, so that the limiting bolt 74 is clamped on the bottom of the upper pipe opening assembly 20, does not contact the extraction tower body 10 when the upper pipe opening assembly 20 is carried, limits the up-down position of the upper pipe opening assembly 20, avoids the overturning risk during construction, and improves the safety of construction personnel during construction.

[0048] Characteristics of the embodiment:

[0049] The base 30 is fixedly provided with the frame body 40, the hoisting assembly 50 is assembled on the top of the frame body 40, the two ends of the limiting rope 60 are connected to the lower end and the rear end of the hoisting assembly 50 respectively, the supporting assembly 70 is sleeved on the bottom periphery of the upper pipe opening assembly 20, and the square tongs 80 are assembled on the upper portion of the upper pipe opening assembly 20. During actual use, the front end of the hoisting assembly 50 is coaxially arranged on the upper portion of the upper pipe opening assembly 20 by adjusting the length of the limiting rope 60, the supporting assembly 70 sleeved on the periphery of the upper pipe opening assembly 20 is connected to the front end of the hoisting assembly 50, so as to cooperate with the carrying of the upper pipe opening assembly 20, the square tongs 80 are clamped and rotated on the upper pipe opening assembly 20, the hoisting assembly 50 is slowly raised, the upper pipe opening assembly 20 is completely separated from the extraction tower body 10, the upper pipe opening assembly 20 is moved to a safe position by rotating the lifting rod 52, the supporting assembly 70 and the square tongs 80 are removed, and the upper pipe opening assembly 20 is placed on one side on a transport vehicle and is transported away from the construction site, so that the upper pipe opening assembly 20 is safely and effectively disassembled and transported. Through the technical scheme, the labor intensity and construction risk of construction personnel are reduced, the construction efficiency and quality are effectively improved, the device is simple and convenient to operate, is convenient to disassemble, maintain and reuse, and the construction cost is reduced.

[0050] Finally, it should be noted that:

[0051] 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 upper pipe mouth, arranged in the upper part of the upper pipe mouth assembly (20) which is sleeved on the upper part of the extraction tower tank body (10), characterized in that it comprises: a base (30) horizontally arranged in the construction site beside the extraction tower tank body (10) to provide installation; a frame body (40) fixed at one end to the base (30) and vertically extended to the lower part of the upper pipe mouth assembly (20) to provide support; a lifting assembly (50) designed in T-shaped structure, the lower end of which is assembled on the top of the frame body (40), the front end of which extends to the center axis of the upper pipe mouth assembly (20), and the rear end of which extends away from the upper pipe mouth assembly (20); a limiting rope (60) connected at both ends to the lower end and the rear end of the lifting assembly (50) to lock the unfolding angle of the lifting assembly (50); a supporting assembly (70) sleeved on the outer periphery of the bottom of the upper pipe mouth assembly (20), the upper end of which is assembled and connected with the lifting assembly (50) to limit the position of the upper pipe mouth assembly (20); and a square wrench (80) assembled on the upper part of the upper pipe mouth assembly (20) to screw and disassemble the upper pipe mouth assembly (20); wherein when the square wrench (80) is used to screw the upper pipe mouth assembly (20), the length of the limiting rope (60) is adjusted so that the lifting assembly (50) drives the upper pipe mouth assembly (20) to rise until it is completely separated from the extraction tower tank body (10).

2. The device for disassembling large-diameter nut of upper pipe mouth according to claim 1, characterized in that the lifting assembly (50) comprises: a support rod (51) assembled at one end to the top of the frame body (40) and extended upward and deviated to the upper pipe mouth assembly (20); a lifting rod (52) rotationally assembled at the top end of the support rod (51), the front end of which extends to the center axis of the upper pipe mouth assembly (20), and the rear end of which extends away from the upper pipe mouth assembly (20), the limiting rope (60) being connected to the support rod (51) and the lifting rod (52); a lifting disc (53) assembled at the front end of the lifting rod (52) coaxially arranged with the upper pipe mouth assembly (20); and a lifting chain (54) assembled at the lower end of the lifting disc (53) vertically downward naturally.

3. The device for disassembling large-diameter nut of upper pipe mouth according to claim 2, characterized in that the supporting assembly (70) comprises: a ring seat (71) designed in circular ring structure, sleeved on the bottom of the upper pipe mouth assembly (20), the inner diameter of which is larger than the outer diameter of the upper pipe mouth assembly (20); an extension frame (72) fixed at one end to the upper part of the ring seat (71) and vertically extended at the other end to be assembled and connected with the lower end of the lifting chain (54); a limiting seat (73) arranged in array at the lower part of the ring seat (71) with the center of the ring seat (71) as the center and fixedly connected therewith; and ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ A limiting bolt (74) is assembled in the limiting seat (73), and its locking direction horizontally points to the central axis of the extraction tower can body (10), and is in pair clamped at the bottom of the upper pipe opening assembly (20) to limit the up and down position thereof.

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