CN220056051U - Special tool for turning over laminated plate girder on site - Google Patents

Special tool for turning over laminated plate girder on site Download PDF

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Publication number
CN220056051U
CN220056051U CN202321592663.8U CN202321592663U CN220056051U CN 220056051 U CN220056051 U CN 220056051U CN 202321592663 U CN202321592663 U CN 202321592663U CN 220056051 U CN220056051 U CN 220056051U
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CN
China
Prior art keywords
frame
plate girder
turning
site
turning over
Prior art date
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Active
Application number
CN202321592663.8U
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Chinese (zh)
Inventor
尹家茗
白金龙
赵海涛
孙启龙
李善斌
隋萌萌
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SEPCO Electric Power Construction Co Ltd
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SEPCO Electric Power Construction Co Ltd
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Priority to CN202321592663.8U priority Critical patent/CN220056051U/en
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Abstract

The utility model discloses a special tool for turning over a stacked plate girder on site, which mainly relates to the field of hoisting of large plate girders; the turnover frame comprises an eccentric triangle structure, wherein the left end and the right end of the bottom surface of the turnover frame are respectively provided with a clamping frame which is matched with the plate girder flange plate, and one side, close to the two clamping frames, of the turnover frame is respectively provided with a clamping groove which is matched with the plate girder flange plate; the utility model can reduce the safety risk in the turning process of the stacked plate girder, improve the working efficiency and has low manufacturing cost.

Description

Special tool for turning over laminated plate girder on site
Technical Field
The utility model relates to the field of girder hoisting, in particular to a special tool for turning over a stacked girder on site.
Background
At present, a large plate girder of a tower type supercritical large boiler is mostly in a stacked large plate girder type, the widths of two upper and lower flange plates of the stacked girder are different, so that the weight deviation is large, the width of the upper flange plate is large in the transportation process of the upper stacked girder, the upper part of the upper stacked girder is generally placed downwards on a transportation vehicle in the transportation process, the head weight is prevented from being light, the transportation safety is ensured, the upper stacked girder needs to be turned over by 180 degrees after being unloaded on site, the subsequent hoisting is ready, the traditional turning over mode is to transversely pull the plate girder to the same side by adopting two chain blocks, meanwhile, a crane slowly falls down to hook, when the gravity center exceeds a certain angle, the large plate girder can fall down by gravity through a double-click crane, and the large plate girder slowly falls down. The utility model has the advantages of after the double-click lifts and hangs wire rope atress, only can transversely pull the girder with the help of using two chain block, cause the scene to have certain security risk, constructor work load increase, work efficiency is low, for solving above-mentioned problem, the patent name is: the utility model discloses a novel steel structure girder turning tool (publication number: CN 213410977U), which is a special tool for turning a girder, but adopts an arc bottom surface, and a steel plate is required to be finished into an arc plate during manufacturing, so that the manufacturing cost is high.
Disclosure of Invention
The utility model aims to solve the problems in the prior art, and provides a special tool for turning over a stacked plate girder on site, which can reduce the safety risk in the turning over process of the stacked plate girder, improve the working efficiency and has low manufacturing cost.
The utility model aims to achieve the aim, and the aim is achieved by the following technical scheme:
the on-site turning-over special tool for the stacked plate girder comprises a turning-over frame with an eccentric triangle structure, wherein clamping frames which are matched with the plate girder flange plates are arranged at the left end and the right end of the bottom surface of the turning-over frame, and clamping grooves which are matched with the plate girder flange plates are formed in one side, close to each other, of each clamping frame.
Preferably, the surface of the longest edge of the turning frame is the bottom surface of the turning frame.
Preferably, the turning frame comprises three I-steel bars, and reinforcing plates are welded on the I-steel bars.
Preferably, the bottom surface of the clamping groove and the bottom surface of the turning frame are positioned on the same plane.
Preferably, the clamping frame is connected with the turning frame through bolts.
Preferably, auxiliary frames are arranged on the front side and the rear side of the bottom surface of the turning frame, one end of each auxiliary frame is fixedly connected with the turning frame, and inclined struts are welded between the auxiliary frames and the turning frame.
Compared with the prior art, the utility model has the beneficial effects that:
the turning frame adopts an eccentric triangle structure, is designed for eccentric stress, and automatically tilts the stacked plate girder to one side by the slow falling hook of the crane and the gravity of the large plate girder; the problem that the upper flange plate is large in width and large in stress surface, and can be toppled only by applying a transverse force to the girder is solved; the folding plate girder turnover device has the advantages that the safety risk in the folding plate girder turnover process can be reduced, the working efficiency is improved, the manufacturing cost is low, the size can be flexibly changed according to different plate girder types, and the folding plate girder turnover device can be repeatedly used.
Drawings
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a front view of the present utility model;
FIG. 3 is a side view of the present utility model;
fig. 4 is a schematic diagram of the turning over of the present utility model.
The reference numbers in the drawings: 1. a turn-over frame; 11. a reinforcing plate; 12. an auxiliary frame; 13. diagonal bracing; 2. a clamping frame; 21. a clamping groove; 3. and (3) a stacked plate girder.
Detailed Description
The utility model will be further illustrated with reference to specific examples. It is to be understood that these examples are illustrative of the present utility model and are not intended to limit the scope of the present utility model. Further, it will be understood that various changes and modifications may be made by those skilled in the art after reading the teachings of the utility model, and equivalents thereof fall within the scope of the utility model as defined by the claims.
Examples: as shown in fig. 1-4, the utility model discloses a special tool for turning over a stacked plate girder on site, which comprises a turning over frame 1 with an eccentric triangle structure, preferably, the turning over frame 1 comprises three I-steel, the three I-steel are welded in sequence into a frame with an eccentric triangle structure, and reinforcing plates 11 are welded on the I-steel, so that the structural strength can be ensured.
The left end and the right end of the bottom surface of the turning frame 1 are respectively provided with a clamping frame 2 which is matched with a plate girder flange plate, and preferably, the clamping frames 2 are connected with the turning frame 1 through bolts, bolt holes are formed in the clamping frames 2 and the turning frame 1, and the bolts are preferably high-strength bolts.
And clamping grooves 21 which are matched with the flange plates of the plate girder are formed in the sides, close to the two clamping frames 2.
Preferably, the surface of the longest edge of the turnover frame 1 is the bottom surface of the turnover frame 1.
Preferably, in order to ensure stability during use, the bottom surface of the clamping groove 21 and the bottom surface of the turnover frame 1 are located on the same plane, so that the contact area between the utility model and the stacked plate girder 3 can be increased.
Preferably, the middle parts of the front side and the rear side of the bottom surface of the turning frame 1 are welded with auxiliary frames 12, the auxiliary frames 12 can be I-steel, and diagonal braces 13 are welded between the auxiliary frames 12 and the turning frame 1, so that the contact area between the utility model and the stacked plate girder 3 can be increased, and the stability in use is ensured.
As shown in fig. 4, when the utility model is used, firstly, the special tool length is processed according to the drawing size of the laminated plate girder 3 and the width of the upper flange plate in advance, so that the special tool and the flange plate can be firmly clamped; the tower crane is connected with the stacked plate girder 3 through a hoisting rigging, and is lifted to a certain height; the utility model is effectively and firmly connected with the plate girder flange plate; the crane slowly falls down to hook, and the stress point is eccentric, so that the stacked plate girder 3 slowly falls down to one side under the self gravity condition; the crane will slowly drop the hooks until the stacked plate girder 3 is completely laid flat.

Claims (6)

1. The utility model provides a folding plate girder on-spot specialized tool that stands up which characterized in that: including the frame (1) of standing up of eccentric triangle-shaped structure, both ends all are equipped with joint frame (2) that suits with the girder flange board about the bottom surface of standing up frame (1), two one side that joint frame (2) are close to all is equipped with draw-in groove (21) that suits with girder flange board.
2. The tool for on-site turning over of a stacked plate girder according to claim 1, wherein: the surface of the longest edge of the turning frame (1) is the bottom surface of the turning frame (1).
3. The tool for on-site turning over of a stacked plate girder according to claim 1, wherein: the turnover frame (1) comprises three I-steel bars, and reinforcing plates (11) are welded on the I-steel bars.
4. The tool for on-site turning over of a stacked plate girder according to claim 1, wherein: the bottom surface of the clamping groove (21) and the bottom surface of the turning frame (1) are positioned on the same plane.
5. The tool for on-site turning over of a stacked plate girder according to claim 1, wherein: the clamping frame (2) is connected with the turning frame (1) through bolts.
6. The tool for on-site turning over of a stacked plate girder according to claim 1, wherein: the two sides all are equipped with auxiliary frame (12) around the bottom surface of standing up frame (1), the one end and the standing up frame (1) fixed connection of auxiliary frame (12), and weld between auxiliary frame (12) and standing up frame (1) has bracing (13).
CN202321592663.8U 2023-06-21 2023-06-21 Special tool for turning over laminated plate girder on site Active CN220056051U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321592663.8U CN220056051U (en) 2023-06-21 2023-06-21 Special tool for turning over laminated plate girder on site

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321592663.8U CN220056051U (en) 2023-06-21 2023-06-21 Special tool for turning over laminated plate girder on site

Publications (1)

Publication Number Publication Date
CN220056051U true CN220056051U (en) 2023-11-21

Family

ID=88765042

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321592663.8U Active CN220056051U (en) 2023-06-21 2023-06-21 Special tool for turning over laminated plate girder on site

Country Status (1)

Country Link
CN (1) CN220056051U (en)

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