CN211923578U - Large-span steel structure net rack lifting device - Google Patents

Abstract

The utility model discloses a large-span steel construction rack hoisting device, including a plurality of primary structure posts and steel construction rack, the steel construction rack is formed by a plurality of horizontal hack levers and the welding of a plurality of vertical hack levers, fixed mounting has a plurality of hoisting points on the steel construction rack, and is wherein three all there is a lifting mechanism, every through support fixed mounting on the primary structure post install a plurality of steel strands on the lifting mechanism, every the equal fixed mounting of lower extreme of steel strand has an erection column, bottom plate, promotion earth anchor are installed to the lower extreme screw thread of erection column. Has the advantages that: the large-span steel structure net rack is assembled on the ground, and has the advantages of high assembling speed and simple and convenient operation; meanwhile, an eccentric lifter is installed at the top of the original structural column, so that the stress state of the steel structure net rack construction is closer to the stress state of the steel structure net rack construction timing, a large number of transverse hack levers and vertical hack levers in the original design are avoided being replaced, the construction cost is saved, and the construction period can be effectively shortened.

Description

Large-span steel structure net rack lifting device

Technical Field

The utility model relates to a rack hoisting device especially relates to a large-span steel construction rack hoisting device.

Background

The hangar main body structure for maintaining the airplane has large span, and the proportion of the dead weight of the structure (mainly referring to a roof system) in all loads is large, so that a large-span steel structure net rack can be adopted as a roof bearing system.

At present, the welding operation of the steel structure net rack is directly carried out in the air, but the installation mode obviously has the following defects: the welded and unwelded steel products are supported by more supporting measures in the welding process, the overall operation is relatively complex, and meanwhile, the problem of assembling errors is easier to occur in high-altitude operation, so that the construction quality is easily influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem of proposing in the background art, and a large-span steel structure rack hoisting device who proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a large-span steel structure net rack lifting device comprises a plurality of original structure columns and a steel structure net rack, wherein the steel structure net rack is formed by welding a plurality of transverse frame rods and a plurality of vertical frame rods, a plurality of lifting points are fixedly mounted on the steel structure net rack, three of the original structure columns are fixedly provided with a lifter through a support, each lifter is provided with a plurality of steel strands, the lower end of each steel strand is fixedly provided with an installation column, the lower end of each installation column is provided with a bottom plate and a lifting ground anchor in a threaded manner, the bottom plate is positioned on the corresponding lifting ground anchor, the upper surface of the bottom plate is fixedly provided with a pipe sleeve, a perforated ball is placed on the bottom plate, and the upper end of the pipe sleeve penetrates through the perforated ball;

fixed mounting has a plurality of hoisting points on the steel construction rack, every a shoulder hole has all been seted up on the hoisting point, a plurality of benefit poles have been placed in the steel construction rack, and have all seted up the bar groove on every benefit pole, and the width of the groove width more than or equal to vertical hack lever in bar groove, the position is corresponding two the common fixed mounting of benefit pole has a benefit piece, and all sets up one with benefit piece matched with benefit groove on the corresponding primary structure post of hoisting point.

In foretell large-span steel structure rack hoisting device, the support comprises two stands and a lifting beam, the lower fixed surface of steel strand wires installs a lifting beam, the lower fixed surface of lifting beam installs two stands, and the stand is fixed respectively in the both sides of corresponding primary structure post.

In the above-mentioned large-span steel structure net rack hoisting device, the hoist is specifically a hydraulic lifting machine.

In the above-mentioned large-span steel structure rack hoisting device, each inlay and mend the piece and all fixedly paste the rubber pad of one side near corresponding primary structure post on.

In the above-mentioned large-span steel structure net rack hoisting device, the specific number of hoisting points is twelve, and one lifter corresponds to four hoisting points.

Compared with the prior art, the utility model discloses the advantage lies in:

1: the net frame members are assembled on the ground, the assembling height of the net frame is reduced, the assembling overall quality of the net frame is guaranteed, meanwhile, the investment of high-altitude assembling ground auxiliary materials and the high-altitude operation construction difficulty are reduced, the assembling process is accelerated, and the safety is guaranteed.

2: the lifter is arranged on the top of the corresponding original structure column, hydraulic synchronous lifting is adopted, auxiliary lifting supports are reduced to the maximum extent, stress balance of each lifting point is guaranteed, and the lifting process is safe and reliable.

3: the cooperation that utilizes the benefit piece and benefit pole makes steel structure rack can be along with rebound together in the in-process that rises, after steel structure rack reaches the design elevation, can remove the benefit piece to the benefit inslot fast, then will benefit pole and horizontal hack lever, vertical hack lever contact part and carry out welding operation, make it form a fixed whole, accomplish to the support of steel structure rack fixed.

Drawings

Fig. 1 is a schematic structural view of a large-span steel structure net rack lifting device provided by the utility model;

FIG. 2 is an enlarged view of the structure of part A in FIG. 1;

fig. 3 is the utility model provides a corresponding relation between each lifting mechanism and the corresponding hoisting point among large-span steel structure rack hoisting device.

In the figure: 1 original structure post, 2 horizontal hacks, 3 vertical hacks, 4 stands, 5 hoisting beams, 6 steel strand wires, 7 erection columns, 8 pipe casings, 9 trompil balls, 10 bottom plates, 11 hoisting ground anchors, 12 hoisting points, 13 shoulder holes, 14 bar-shaped grooves, 15 caulking blocks, 16 rubber pads, 17 caulking grooves and 18 hoists.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-3, a large-span steel structure net rack lifting device comprises a plurality of original structure columns 1 and a steel structure net rack, wherein the steel structure net rack is formed by welding a plurality of transverse rack rods 2 and a plurality of vertical rack rods 3, and a plurality of lifting points 12 are fixedly arranged on the steel structure net rack;

the above is noteworthy: the specific number of the lifting points 12 is twelve, the specific distribution positions can be represented by DD1-DD12 as shown in FIG. 3, and the specific values of the reaction force values of the lifting points are obtained through specific integral modeling stress analysis as follows: DD1-1011 KN; DD2-359 KN; DD3-504 KN; DD4-1290 KN; DD5-1266 KN; DD6-479 KN; DD7-3831 KN; DD8-992 KN; DD9-1959 KN; DD10-2012 KN; DD 11-2011N; DD12-1967 KN.

The three original structural columns 1 are fixedly provided with a lifter 18 through a bracket, and each lifter 18 is provided with a plurality of steel strands 6;

the above is noteworthy from the following points:

1. one lifter 18 corresponds to four lifting points 12, the specific correspondence being directly evident from fig. 3.

2. The support comprises two stands 4 and a lifting beam 5, and the lower fixed surface of steel strand wires 6 installs a lifting beam 5, and the lower fixed surface of lifting beam 5 installs two stands 4, and stand 4 fixes respectively in the both sides of corresponding primary structure post 1.

3. The hoist 18 is embodied as a hydraulic hoist machine, and may be embodied as a hydraulic hoist of the type TL-J-2000.

The lower end of each steel strand 6 is fixedly provided with a mounting column 7, the lower end of each mounting column 7 is provided with a base plate 10 and a lifting anchor 11 in a threaded manner, the base plate 10 is located on the corresponding lifting anchor 11, the upper surface of the base plate 10 is fixedly provided with a pipe sleeve 8, a perforated ball 9 is placed on the base plate 10, and the upper end of the pipe sleeve 8 penetrates through the perforated ball 9.

A plurality of lifting points 12 are fixedly arranged on the steel structure net rack, and each lifting point 12 is provided with a stepped hole 13;

it is worth noting above that: the lower end hole width of the stepped hole 13 is larger than the upper end hole width, so that the upper end part of the pipe sleeve 8 can generate a supporting effect on the lifting point 12 during specific installation.

A plurality of embedding rods are arranged in the steel structure net rack, each embedding rod is provided with a strip-shaped groove 14, the width of each strip-shaped groove 14 is larger than or equal to that of the vertical rack rod 3, two embedding rods corresponding to the positions are fixedly provided with an embedding block 15 together, and an embedding groove 17 matched with the embedding block 15 is arranged on the original structure column 1 corresponding to the hanging point 12;

the above is noteworthy from the following points:

1. a layer of rubber pad 16 is fixedly adhered to the side surface of each embedded and supplemented block 15, which is close to one side of the corresponding original structural column 1; the purpose of the rubber mat 16 is to prevent the insertion block 15 from directly contacting the corresponding primary structural column 1 when moving upward together with the steel structural grid through the insertion rod.

2. The embedding rod is clamped on the corresponding vertical hack lever 3 in an initial state, at the moment, the vertical hack lever 3 is contacted with the side wall of the upper strip-shaped groove 14 of the vertical hack lever, certain friction exists between the vertical hack lever and the upper strip-shaped groove, and relative movement can be generated under the drawing action of external force (artificial application).

3. The depth of the caulking groove 17 is greater than or equal to the sum of the widths of the caulking block 15 and the rubber pad 16, so that the whole part can be moved into the caulking groove 17 during specific installation.

Further, unless otherwise specifically stated or limited, the above-described fixed connection is to be understood in a broad sense, and may be, for example, welded, glued, or integrally formed as is conventional in the art.

The utility model discloses in, concrete operating procedure is as follows:

the first step is as follows: firstly, welding the horizontal hack lever 2 and the vertical hack lever 3 on the ground to form a steel structure net rack;

the second step is that: the open-hole ball 9 is fitted over the pipe sleeve 8, and then the bottom plate 10 is screw-fitted to the mounting post 7 so that the upper end of the pipe sleeve 8 is in contact with the inner wall of the lower end portion of the stepped hole 13;

the third step: screwing the lifting ground anchor 11 onto the mounting post 7 and bringing the upper surface of the lifting ground anchor 11 into contact with the lower surface of the bottom plate 10;

the fourth step: placing the embedding rods in the steel structure net rack so that the embedding rods can move in the vertical direction along with the steel structure net rack;

the fifth step: simultaneously opening the three lifters 18, utilizing the lifters 18 to work to drive the steel structure net rack to lift upwards, and stopping the lifters 18 after the steel structure net rack is lifted to the designed elevation;

and a sixth step: applying an acting force far away from the steel structure net rack to the corresponding patching blocks 15 to enable the patching blocks 15 to move into the corresponding patching grooves 17;

the seventh step: and welding the contact parts of the embedding rods, the transverse frame rods 2 and the vertical frame rods 3 to form a fixed whole.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (5)

1. The large-span steel structure net rack lifting device comprises a plurality of original structure columns (1) and a steel structure net rack, wherein the steel structure net rack is formed by welding a plurality of transverse frame rods (2) and a plurality of vertical frame rods (3), and is characterized in that a plurality of lifting points (12) are fixedly mounted on the steel structure net rack, three of the lifting points are arranged on the original structure columns (1) respectively, a lifter (18) is fixedly mounted on each lifter (18), a plurality of steel strands (6) are mounted on each lifter (18), each mounting column (7) is fixedly mounted at the lower end of each steel strand (6), a bottom plate (10) and a lifting ground anchor (11) are mounted on the lower end of each mounting column (7) in a threaded manner, each bottom plate (10) is located on the corresponding lifting ground anchor (11), a pipe sleeve (8) is fixedly mounted on the upper surface of each bottom plate (10), and a perforated ball (9) is placed on each bottom plate, and the upper end of the pipe sleeve (8) passes through the perforated ball (9);

fixed mounting has a plurality of hoisting points (12), every on the steel construction rack a shoulder hole (13) have all been seted up on hoisting point (12), a plurality of benefit poles have been placed in the steel construction rack, and have all seted up bar groove (14) on every benefit pole, and the width of the groove width more than or equal to vertical hack lever (3) of bar groove (14), the position is corresponding two the common fixed mounting of benefit pole has one to inlay benefit piece (15), and all seted up one with inlay benefit piece (15) matched with on original structure post (1) corresponding with hoisting point (12) and mended groove (17).

2. The large-span steel structure net rack lifting device according to claim 1, wherein the bracket is composed of two upright posts (4) and a lifting beam (5), one lifting beam (5) is fixedly installed on the lower surface of the steel strand (6), two upright posts (4) are fixedly installed on the lower surface of the lifting beam (5), and the upright posts (4) are respectively fixed on two sides of the corresponding primary structure post (1).

3. A large span steel structural grid lifting device according to claim 1, characterized in that the lifter (18) is embodied as a hydraulic lifting machine.

4. The large-span steel structure net rack lifting device according to claim 1, characterized in that a rubber mat (16) is fixedly adhered to the side surface of each of the inserted blocks (15) close to the corresponding original structure column (1).

5. The large-span steel structure net rack lifting device according to claim 1, characterized in that the specific number of the lifting points (12) is twelve, and one lifter (18) corresponds to four lifting points (12).

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