Use method of hoisting and turning device for super-large concrete prefabricated stand plate
Technical Field
The invention relates to the field of prefabricated stand plate shipping, in particular to a using method of a hoisting and turning-over device for an oversized concrete prefabricated stand plate.
Background
With the development of industrial buildings, the use of precast concrete members is more and more extensive. The surface quality requirement of the concrete prefabricated stand plate is high, the effect of concrete clear water surface needs to be ensured, and therefore an inverted pouring mode needs to be adopted. After the pouring is finished, the prefabricated stand board needs to be hoisted, demoulded and turned over for transportation and installation. In addition, prefabricated stand board size super large, the board is thick thinner, and the dead weight is great, and all edges and corners and hoisting hole all must not have the damage of any degree among the upset process, if directly adopt the hoist cable mode of standing up unable satisfying the demands. A safe, convenient and detachable hoisting and turning device is needed to be designed for the safe and efficient hoisting and turning of the oversized concrete prefabricated stand plate.
Disclosure of Invention
The invention aims to provide a using method of a hoisting and turning-over device for an oversized concrete prefabricated stand plate, and the using method is used for solving the problem that safe and efficient hoisting and turning-over of the oversized concrete prefabricated stand plate are difficult to realize in the prior art.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
the hoisting and turning device for the super-large concrete prefabricated stand plate is matched with a crane for use, wherein the prefabricated stand plate is provided with embedded hoisting pieces which comprise two main body beams longitudinally arranged in parallel and two hoisting beams transversely arranged in parallel;
the main body beam comprises a transverse L-shaped turning steel beam and a linear auxiliary beam, the transverse part of the L-shaped turning steel beam is arranged on the prefabricated stand plate and is connected with an embedded hanging piece bolt of the prefabricated stand plate, the vertical part is clamped on one side of the prefabricated stand plate, and a first lifting lug is welded on an outer side plate far away from the prefabricated stand plate; the auxiliary beam is arranged on the other side of the prefabricated stand plate, the top of the auxiliary beam is connected with the bottom end of the transverse part of the L-shaped turnover steel beam through a bolt, and a second lifting lug is welded on the outer side plate far away from the prefabricated stand plate;
the lifting beam is horizontally arranged on the main body beam and comprises a first lifting carrying pole and a second lifting carrying pole which are arranged in parallel, two ends of the middle part of the first lifting carrying pole are respectively connected with first lifting lugs on the upright parts of the corresponding L-shaped turnover steel beams through vertically arranged steel wire lifting cables, and two ends of the top part of the first lifting carrying pole are connected with first lifting hooks of the crane through the steel wire lifting cables; and two ends of the middle part of the second hoisting carrying pole are respectively connected with second lifting lugs on the corresponding auxiliary beams through vertically arranged steel wire lifting cables, and two ends of the top of the second hoisting carrying pole are connected with second lifting hooks of the crane through the steel wire lifting cables.
Preferably, the section of the L-shaped turnover steel beam is I-shaped and comprises an L-shaped first I-beam and a plurality of first stiffening rib plates which are perpendicular to a web plate and a wing plate of the first I-beam and correspondingly arranged, and two rows of first groove-shaped bolt holes are correspondingly formed in two sides of the web plate on the inner wing plate.
Preferably, the auxiliary beam has the same structure as the vertical part of the L-shaped turnover steel beam, and comprises a second I-beam and a plurality of second stiffening rib plates which are arranged correspondingly to the web plate of the second I-beam, and a plurality of second groove-shaped bolt holes which are arranged in pairs are correspondingly formed in the inner wing plate and the top plate.
Preferably, a plurality of auxiliary first lifting lugs are welded in the middle of the outer wing plate at the transverse part of the first I-shaped beam.
Preferably, first hoist and mount shoulder pole is by two cylinder steel pipes of welding about a bar steel sheet, and a plurality of first shoulder pole lewis hole are evenly seted up along the axis in the middle part, and 4 first shoulder pole lugs are arranged along longitudinal direction to the upside, first shoulder pole lewis hole links to each other with first lug, first shoulder pole lug links to each other with the first lifting hook of loop wheel machine.
Preferably, the second hoisting carrying pole structure is the same as the first hoisting carrying pole structure and comprises a second carrying pole lifting hole and a second carrying pole lifting lug, the second carrying pole lifting hole is connected with the second lifting lug, and the second carrying pole lifting lug is connected with a second lifting hook of the crane.
Preferably, the two ends of the steel wire suspension cable are provided with a lock catch.
Preferably, a square base plate is arranged at the bolt connection position of the device, and an angle steel base plate is arranged at the connection position of the square base plate and the edge of the prefabricated stand.
In addition, the invention also provides a using method of the hoisting and turning-over device for the oversized concrete prefabricated stand slab, which comprises the following steps:
step one, mounting a main body beam: the bolt is connected with the L-shaped turning steel beam and the auxiliary beam, and the two beams form a C-shaped or F-shaped lifting appliance;
step two, installing a hoisting beam: the main body beam and the hoisting beam are connected through a steel wire hoisting cable;
step three, connecting a crane: the hoisting beam, the first lifting hook and the second lifting hook are connected through a steel wire hoisting cable;
step four, mounting the stand board: moving the lifting appliance to the position above the prefabricated stand plate through a crane, and connecting the lifting appliance and the prefabricated stand plate through bolts;
step five, standing the stand plate vertically: simultaneously lifting the first lifting hook and the second lifting hook to enable the prefabricated stand slab to be lifted off the ground, keeping the second lifting hook stationary, lifting the first lifting hook upwards to enable the prefabricated stand slab to move in a staggered mode with the second lifting hook, and enabling the first lifting hook to approach the second lifting hook until the prefabricated stand slab is turned over for 90 degrees and the board surface is upright;
step six, rotating the stand board: the connection of the second lifting hook is released, and the prefabricated stand plate is pushed to rotate 180 degrees in the air by taking the vertical direction as an axis;
step seven, turning over the stand board: reconnecting the second lifting hook and lifting the second lifting hook upwards, and simultaneously moving the second lifting hook towards the direction far away from the first lifting hook until the prefabricated stand plate is level again, so as to realize the turnover of the prefabricated stand plate;
step eight, dismounting the lifting appliance: slowly placing the prefabricated stand board at an appointed position, and detaching the connecting bolt on the hanger to complete the turning-over operation.
Compared with the prior art, the invention has the beneficial effects that:
1. the device can be repeatedly used, is not easy to deform, and can be used for turning over and hoisting for shipment;
2. the groove-shaped bolt holes with different intervals are arranged on the flange of the L-shaped turnover steel beam, so that the position of the auxiliary steel beam can be adjusted, the lifting and turnover device is suitable for lifting and turnover of prefabricated stand plates with different sizes, and the universality is good;
3. the prefabricated stand board is always tightly attached to the turnover device in the operation process, so that the operation is stable, reliable, efficient and safe, meanwhile, the prefabricated stand board cannot collide, and the turnover device is not damaged;
4. the lifting lugs and the first carrying pole lifting holes with different intervals are arranged on the first lifting carrying pole, so that the lifting and turning-over device can be suitable for lifting and turning-over of prefabricated stand boards with different widths, the prefabricated components are ensured to be stressed uniformly, and the work efficiency is greatly improved.
Drawings
The above and/or other aspects and advantages of the present invention will become more apparent and more readily appreciated from the detailed description taken in conjunction with the following drawings, which are meant to be illustrative, not limiting of the invention, and in which:
FIG. 1 is a schematic structural view of a hoisting and turning device for an oversized concrete prefabricated stand plate, which is disclosed by the invention;
fig. 2 is a schematic structural view of an L-shaped turnover steel beam and an auxiliary beam of the hoisting and turnover device for the oversized concrete prefabricated stand plate, which is disclosed by the invention;
FIG. 3 is a front view of an L-shaped turnover steel beam and an auxiliary beam of the device for hoisting and turnover of the oversized concrete prefabricated stand plate, which is disclosed by the invention;
FIG. 4 is a schematic diagram of the fifth step of the method for using the device for hoisting and turning over the oversized concrete prefabricated stand plate, which is disclosed by the invention;
FIG. 5 is a sixth schematic view of the using method of the hoisting and turning-over device for the super large concrete prefabricated stand plate according to the present invention;
fig. 6 is a seventh schematic view of the using method of the device for hoisting and turning over the oversized concrete prefabricated stand plate.
Reference numerals are as follows: the steel beam is turned over in a 1-L shape, the first I-beam is 1.1, the first stiffening rib plate is 1.2, the first lifting lug is 1.3, the first groove-shaped bolt hole is 1.4, the first auxiliary beam is 2, the second I-beam is 2.1, the second stiffening rib plate is 2.2, the second lifting lug is 2.3, the second groove-shaped bolt hole is 2.4, the first lifting carrying pole is 3, the first carrying pole lifting hole is 3.1, the first carrying pole lifting lug is 3.2, the second lifting carrying pole is 4, the second carrying pole lifting hole is 4.1, the second carrying pole lifting lug is 4.2, the lock catch is 5, the steel wire lifting cable is 6, the square base plate is 7, the angle steel base plate is 8, the first lifting hook is 9, the second lifting hook is 10, and the prefabricated stand plate is 11.
Detailed Description
Hereinafter, an embodiment of the method for using the hoisting and turning-over device for the super-large concrete prefabricated balcony panel according to the invention will be described with reference to the accompanying drawings. The embodiments described herein are specific embodiments of the present invention, and are intended to be illustrative and exemplary of the concepts of the present invention and should not be construed as limiting the scope of the embodiments of the present invention. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include technical solutions which make any obvious replacement or modification for the embodiments described herein.
In the description of the present invention, it should be noted that the terms "inside", "outside", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
The drawings in the present specification are schematic views to assist in explaining the concept of the present invention, and schematically show the shapes of respective portions and their mutual relationships. It is noted that the drawings are not necessarily to the same scale so as to clearly illustrate the structures of the various elements of the embodiments of the invention. Like reference numerals are used to denote like parts.
The principles and features of the present invention will be described with reference to the following drawings, which are illustrative only and are not intended to limit the scope of the invention. Preferred embodiments of the present invention are described in further detail below with reference to FIGS. 1-6:
as shown in fig. 1, the hoisting and turning-over device for the super-large concrete prefabricated stand plate, which is preferred by the invention, is used in cooperation with a crane, wherein sleeve embedded hoisting pieces with threads arranged inside are arranged on the prefabricated stand plate 11, and comprise two main body beams which are longitudinally arranged in parallel and two hoisting beams which are transversely arranged in parallel;
the main body beam comprises a transverse L-shaped turnover steel beam 1 and a linear auxiliary beam 2, the transverse part of the L-shaped turnover steel beam 1 is arranged on the prefabricated stand plate 11 and is connected with an embedded hanging piece bolt of the prefabricated stand plate 11, the vertical part is clamped on one side of the prefabricated stand plate 11, the auxiliary beam 2 is arranged on the other side of the prefabricated stand plate 11, and the top of the auxiliary beam is connected with the bottom end of the transverse part of the L-shaped turnover steel beam 1 through a bolt;
as shown in fig. 2-3, the section of the L-shaped turnover steel beam 1 is i-shaped, and comprises an L-shaped first i-beam 1.1 and a plurality of first stiffening rib plates 1.2 which are arranged perpendicular to a web plate and a wing plate of the first i-beam 1.1, wherein a first lifting lug 1.3 is welded in the middle of an outer wing plate of a vertical part of the first i-beam 1.1, in order to facilitate the lifting of the prefabricated stand plate 11, a plurality of auxiliary first lifting lugs 1.3 are welded in the middle of an outer wing plate of a transverse part of the first i-beam, when only the prefabricated stand plate 11 is lifted and moved, the auxiliary beam 2 can be omitted due to the arrangement of the auxiliary first lifting lugs 1.3, the lifting and moving of the L-shaped turnover steel beam 1 can be realized independently, the working efficiency is improved, and two rows of first groove-shaped bolt holes 1.4 are correspondingly formed in two sides of the web plate on the inner wing plate;
the auxiliary beam 2 has the same structure as the vertical part of the L-shaped turnover steel beam 1 and comprises a second I-beam 2.1 and a plurality of second stiffening rib plates 2.2 which are arranged correspondingly to a web plate vertical to the second I-beam 2.1, the middle part of the outer wing plate is provided with a second lifting lug 2.3 corresponding to the position of the first lifting lug 1.3, and the inner wing plate and the top plate are correspondingly provided with a plurality of second groove-shaped bolt holes 2.4 which are arranged in pairs;
as shown in fig. 1, the hoisting beam is horizontally arranged on the main body beam and comprises a first hoisting carrying pole 3 and a second hoisting carrying pole 4 which are arranged in parallel, the first hoisting carrying pole 3 is vertically arranged above the L-shaped turnover steel beam 1 and is connected with a first lifting lug 1.3 through a lock catch 5 and a steel wire hoisting cable 6, the first hoisting carrying pole is made of a strip-shaped steel plate by welding two cylindrical steel pipes up and down, a plurality of first carrying pole hoisting holes 3.1 are uniformly formed in the middle part along the axis, 4 first carrying pole lifting lugs 3.2 are longitudinally arranged above the upper cylindrical steel pipe, the first carrying pole hoisting holes 3.1 are connected with the first lifting lugs 1.3, and the first carrying pole lifting lugs 3.2 are connected with a first lifting hook 9 of the crane;
the second hoist and mount shoulder pole 4 corresponds first hoist and mount shoulder pole 3 position and locates auxiliary beam 2 tops, links to each other with second lug 2.3 through hasp 5 and steel wire hoist cable 6, and the structure is the same with first hoist and mount shoulder pole 3 structure, including second shoulder pole lewis hole 4.1 and second shoulder pole lug 4.2, second shoulder pole lewis hole 4.1 links to each other with second lug 2.3, second shoulder pole lug 4.2 links to each other with second lifting hook 10.
In the further scheme, device bolted connection department sets up square backing plate 7 to prevent that the bolt from taking place the condition of sliding, set up angle steel backing plate 8 with prefabricated stand edge connection department, prevent that prefabricated stand board edges and corners from causing the damage of colliding with in the in-process of standing up.
In addition, the invention also provides a using method of the hoisting and turning-over device for the oversized concrete prefabricated stand slab, which comprises the following steps:
step one, mounting a main body beam: according to the width of the prefabricated stand plate 11, the fastening position of the auxiliary beam 2 on the L-shaped turnover steel beam 1 is determined, the position of the auxiliary beam 2 is suitable for enabling the distance between the short side of the L-shaped turnover steel beam 1 and the auxiliary beam 2 to be slightly larger than the width of the prefabricated stand plate 11, a first groove-shaped bolt hole 1.4 and a second groove-shaped bolt hole 2.4 are connected through bolts, and the two beams form a C-shaped or F-shaped lifting appliance;
step two, installing a hoisting beam: determining the distance between two L-shaped turnover steel beams 1 and selecting two first carrying pole hanging holes 3.1 with proper distance according to the positions of pre-embedded hanging pieces of a prefabricated stand plate 11, wherein the distance between the two first carrying pole hanging holes 3.1 is matched with the distance between the two L-shaped turnover steel beams 1, correspondingly connecting a first lifting lug 1.3 and the selected first carrying pole hanging hole 3.1 of the vertical part of the L-shaped turnover steel beam 1 through a lock catch 5 and a steel wire hanging cable 6, and similarly connecting a second lifting lug 2.3 and a second carrying pole hanging hole 4.1, so that the first lifting carrying pole 3 is connected with the two L-shaped turnover steel beams 1, and the second lifting carrying pole 4 is connected with the two auxiliary beams 2;
step three, crane connection: a lock catch 5 is sleeved in the first shoulder pole lifting lug 3.2 and the second shoulder pole lifting lug 4.2 and is connected with a steel wire lifting cable 6, and the upper end of the steel wire lifting cable 6 is respectively sleeved on a first lifting hook 9 and a second lifting hook 10 of the crane;
step four, mounting the stand board: starting a crane, moving a lifting appliance to the position above the prefabricated stand plate 11, connecting the prefabricated stand plate 11 and the lifting appliance into a whole through bolts, arranging a square base plate 7 at the joint of the bolts and the lifting appliance to prevent the bolts from slipping, and placing an angle steel base plate 8 between the edge of the prefabricated stand plate 11 and a turnover device to prevent the edges and corners of the prefabricated stand plate 11 from being collided and damaged in the turnover process (as shown in figure 1);
step five, erecting the stand plate: lifting the first lifting hook 9 and the second lifting hook 10 simultaneously to enable the prefabricated stand plate 11 to be lifted away from the ground, keeping the second lifting hook 10 still, slowly lifting the first lifting hook 9 upwards to enable the first lifting hook 9 to move in a staggered mode with the second lifting hook 10, and enabling the first lifting hook 9 to approach the second lifting hook 10 at the same time until the prefabricated stand plate 11 is turned over by 90 degrees and the plate surface is upright (as shown in fig. 4);
step six, rotating the stand board: the lock catch 5 at the second lifting lug 2.3 is removed, the connection of the second lifting hook 10 is released, all the weight is borne by the first lifting hook 9, the prefabricated stand plate 11 is pushed, and the prefabricated stand plate 11 is rotated by 180 degrees in the air by taking the vertical direction as an axis (as shown in fig. 5);
step seven, turning over the stand board: reinstalling the lock catch 5 at the second lifting lug 2.3, connecting the second lifting hook 10 with the auxiliary beam 2, slowly lifting the second lifting hook 10 upwards, and slowly moving the second lifting hook 10 away from the first lifting hook 9 until the prefabricated bedplate 11 is leveled again to realize the turnover of the prefabricated bedplate 11 (as shown in fig. 6);
step eight, disassembling the turnover device: the prefabricated stand board 11 is slowly placed on the ground or an installation position or a transport vehicle, and connecting bolts on the L-shaped turning steel beam 1 and the auxiliary beam 2 are removed to complete turning operation.
It should be noted that the prefabricated stand board 11 is usually placed on a preset skid after the turning operation, and the skid can also play a role of preventing the auxiliary first lifting lug 1.3 of the transverse part of the L-shaped turning steel beam 1 from being pressed.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.