Steel structure bridge construction accurate positioning and guiding device and method based on three-dimensional coordinates
Technical Field
The invention relates to the technical field of cable processing, in particular to a steel structure bridge construction accurate positioning and guiding device and method based on three-dimensional coordinates.
Background
The steel structure bridge is a bridge taking steel as a main bearing structure, the structural form of the steel structure bridge mainly comprises a steel girder bridge, a steel arch bridge, a steel cable-stayed bridge, a steel suspension bridge and the like, and the steel structure bridge has wide application in modern bridge engineering due to the advantages of light dead weight, high strength, high construction speed, attractive appearance and the like, and particularly has the unique advantages of the steel structure bridge as a preferred scheme in large river-crossing, sea-crossing bridges, urban viaducts and the like. Through accurate design and construction, the steel structure bridge can realize high-precision three-dimensional coordinate positioning, ensures the stability and the safety of the bridge.
According to the patent document, the steel structure lifting equipment for construction of buildings and roads and bridges disclosed by CN119349387A comprises a base, a support and a winding mechanism, wherein an adjusting assembly is fixedly arranged at the bottom of the support, the winding mechanism is symmetrically arranged in the adjusting assembly, and the winding mechanism controls two groups of winding mechanisms to transversely move. According to the invention, by utilizing the cooperation of the steel rope fixing assembly, the rotating assembly and the hoisting seat, when the steel structure is hoisted, the auxiliary steel ropes are quickly wound on the outer side of the steel structure, the two sides of the auxiliary steel ropes are wrapped on the top of the steel structure and are wound by themselves in the rotating process, the tightening of the steel structure is realized, the positioning assembly is pushed to move downwards by the electric push rod, the wound auxiliary steel ropes are further locked, and the rotating assembly is locked and fixed, so that the quick winding and fixing are completed, the hoisting stability is maintained, the winding ropes are not required to be specially found, the auxiliary steel ropes are fixed in the hoisting device, and the hoisting device is used at any time, and has a good use effect.
In the current technical field, the construction process of the steel structure bridge often involves the use of a hoisting machine to raise the steel structure part to a predetermined installation position, and this process needs to ensure that the steel structure part can be accurately positioned at the place where it is required to be installed by precisely controlling the operation of the hoisting machine, however, in practical application, when facing a steel structure with a large length, the fixing operation in the hoisting process becomes quite complicated and cumbersome, and particularly in the hoisting process, the long steel structure part is prone to incline to one side, which increases the risk of the steel structure slipping, and adversely affects the safety and efficiency of construction, thereby significantly increasing the difficulty of construction.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the accurate positioning guide device and the accurate positioning guide method for the steel structure bridge construction based on the three-dimensional coordinates, and the technical problem to be solved by the invention is that in practical application, when facing a steel structure with a large length, the fixing operation in the hoisting process becomes quite complex and complicated, particularly in the hoisting process, a longer steel structure part is easy to incline to one side, which not only increases the risk of sliding of the steel structure, but also has adverse effects on the safety and efficiency of construction, thereby obviously increasing the difficulty of construction.
In order to solve the technical problems, the invention adopts the following technical scheme:
the steel structure bridge construction accurate positioning and guiding device based on the three-dimensional coordinates comprises a sling cart, wherein a lifting hook control frame is arranged at the bottom of the front side of the sling cart, and a steel structure bridge stabilizing mechanism is arranged at the bottom of the lifting hook control frame;
The lifting hook control frame comprises a top plate, a sliding groove is formed in the top of the top plate, a pneumatic push rod connecting plate is fixedly connected to the middle of the top plate, a hanging block is fixedly connected to the middle of the top of the pneumatic push rod connecting plate, the top of the hanging block is fixedly connected to the bottom of the front side of the sling cart, pneumatic push rods are fixedly connected to the front side and the rear side of the top of the pneumatic push rod connecting plate, a gas control piece is fixedly connected to the front side of the top plate, pipelines are fixedly connected to the top of the outer wall of each pneumatic push rod, and one ends, far away from the pneumatic push rods, of the two pipelines are fixedly connected to the front side of the gas control piece;
the steel structure bridge stabilizing mechanism comprises two positioning assemblies, and positioning control assemblies are arranged on the inner sides of the two positioning assemblies.
As a further scheme of the invention, the outer ends of the two pneumatic push rods are fixedly connected with push plates, the left side and the right side of the bottom of the top plate are fixedly connected with vertical plates, the front side and the rear side of the inner sides of the two vertical plates are fixedly connected with transverse rods, the bottoms of the two push plates extend to the inner sides of the two vertical plates through sliding grooves formed in the top plate and are fixedly connected with retracting plates, the front side and the rear side of the outer sides of the two push plates are fixedly connected with Z-shaped push rods, and one sides of the bottoms of the two groups of Z-shaped push rods, which are far away from the push plates, are respectively and rotatably connected with push-pull transverse rods.
As a further scheme of the invention, the tops of the middle parts of the inner sides of the two collecting and expanding plates are respectively and rotatably connected with a rotating rod, the bottoms of the two collecting and expanding plates are respectively and slidably connected with the left side and the right side of the tops of the two cross rods, springs are respectively and fixedly connected with the front side and the rear side of the outer sides of the two collecting and expanding plates, one ends of the two springs, which are far away from the collecting and expanding plates, are respectively and fixedly connected with the inner sides of the two vertical plates, and the bottoms of the two rotating rods are respectively and rotatably connected with a hinge block.
The lifting hook connecting rod is characterized in that the middle parts of the outer sides of the two vertical plates are fixedly connected with L-shaped connecting rods, the bottoms of the inner sides of the two L-shaped connecting rods are fixedly connected with guide blocks, the two sides of the bottoms of the guide blocks are fixedly connected with second guide block connecting rods, the bottoms of the two second guide block connecting rods are fixedly connected with second guide blocks, the bottoms of the L-shaped connecting rods are fixedly connected with lifting hook connecting rods, the outer walls of the lifting hook connecting rods are slidably connected with the inner walls of the hinge blocks and the second guide blocks, and the bottom ends of the lifting hook connecting rods extend to the outer walls of the bottoms of the second guide blocks and are fixedly connected with lifting hooks.
The positioning assembly comprises inverted concave plates, L-shaped guide blocks are fixedly connected to the tops and bottoms of the front side and the rear side of the inverted concave plates, sliding groove plates are fixedly connected to the middle parts of the outer sides of the two inverted concave plates, C-shaped connecting rods are fixedly connected to the front side and the rear side of the tops of the outer sides of the two inverted concave plates, the tops of the inner sides of the two groups of C-shaped connecting rods are fixedly connected to the left side and the right side of a top plate, and top connecting blocks are fixedly connected to the middle parts of the tops of the two inverted concave plates.
The invention further provides a scheme that the front side and the rear side of one side of the sliding groove plates, which are far away from the inverted concave plate, are both connected with L-shaped folding and expanding plates in a sliding manner, the outer sides of the two top connecting blocks are both fixedly connected with columnar push-pull rod guide plates, the inner sides of the front and the rear groups of the L-shaped folding and expanding plates are both fixedly connected with C-shaped push-pull plates, the outer sides of the left and the right groups of the L-shaped folding and expanding plates, which are far away from each other, are both rotationally connected with rotating short rods, the tops of the left and the right groups of the rotating short rods are both rotationally connected with rotating short rod hinging blocks, the tops of the two rotating short rod hinging blocks are both rotationally connected with columnar push-pull rods, and the outer walls of the two columnar push-pull rods are both rotationally connected with the outer sides of the two columnar push-pull rod guide plates.
As a further scheme of the invention, the inner walls of the left and right groups of L-shaped guide blocks are both connected with columnar rods in a sliding manner, the inner sides of the front and rear groups of columnar rods are both fixedly connected with positioning clamping plates, the left and right groups of positioning clamping plates are both connected with the inner sides of the two inverted concave plates in a sliding manner, and the outer sides of the front and rear groups of positioning clamping plates are both fixedly connected with the inner sides of the front and rear groups of C-shaped push-pull plates.
The positioning control assembly comprises two V-shaped rotating rod hinging blocks, wherein the inner sides of the two V-shaped rotating rod hinging blocks are fixedly connected to the tops of the outer sides of the left and right groups of C-shaped connecting rods, the outer sides of the two V-shaped rotating rod hinging blocks are rotatably connected with V-shaped rotating rods, the bottoms of the two V-shaped rotating rods are fixedly connected with lifting rods, the inner sides of the two lifting rods are rotatably connected with H-shaped lifting plates, the outer walls of the two H-shaped lifting plates are slidably connected to the inner sides of the two groups of C-shaped connecting rods, the inner sides of the two H-shaped lifting plates extend to the inner sides of the two groups of C-shaped connecting rods, and the front side and the rear side, which are close to one side, of the tops of the two H-shaped lifting plates are fixedly connected with connecting rods.
As a further scheme of the invention, one sides of the bottoms of the two H-shaped lifting plates, which are far away from each other, are rotatably connected to the top ends of the two columnar push-pull rods.
In addition, the invention also relates to a steel structure bridge construction accurate positioning and guiding device and method based on three-dimensional coordinates, comprising the following steps:
step one, transporting a sling cart, a lifting hook control frame, a steel structure bridge stabilizing mechanism and a steel structure bridge to be installed to a construction site, and ensuring that all equipment is in a good working state;
Step two, determining three-dimensional coordinates of a hoisting point and a mounting point according to specific conditions of a construction site and design requirements of the steel structure bridge, and ensuring position accuracy in the hoisting process;
connecting the steel structure bridge with a sling cart through a lifting hook control frame, and primarily lifting the steel structure bridge to a proper height by utilizing the adjusting function of the lifting hook control frame, at the moment, starting a gas control piece, pushing the action of a retracting and expanding plate and a lifting hook connecting rod through the extension of a pneumatic push rod, and adjusting the position of the lifting hook to enable the steel structure bridge to smoothly enter a concave plate of a steel structure bridge stabilizing mechanism and be stably clamped;
Step four, after the steel structure bridge is stably clamped, an operator adjusts the position of the sling cart according to real-time monitoring data of the high-precision sensor, so that the steel structure bridge is ensured to slowly descend along a preset track until the steel structure bridge is accurately installed on a design position;
And fifthly, once the steel structure bridge is installed in place, an operator releases the lifting hook control frame, the connection between the lifting hook and the steel structure bridge is disconnected, and meanwhile, the steel structure bridge stabilizing mechanism is automatically unlocked, and the clamping of the steel structure bridge is released, so that the whole installation process is completed.
The invention has the beneficial effects that:
the invention realizes accurate control and stable clamping of the steel structure bridge in the hoisting process by arranging the hoisting truck, the lifting hook control frame and the steel structure bridge stabilizing mechanism, effectively avoids possible installation errors and safety risks in the traditional construction method, has high flexibility and adaptability, can adapt to the steel structure bridge construction requirements of different scales and complexity, brings revolutionary transformation to the bridge construction field, and fully considers the diversity of construction environments, for example, in the construction environment with larger wind force, the device ensures that the steel structure bridge cannot deviate due to wind force influence in the hoisting process by enhancing the stability and wind resistance of the structure, and simultaneously has automatic adjustment and compensation functions, and can finely adjust the hoisting position and angle according to the actual construction condition so as to further improve the installation accuracy.
Drawings
FIG. 1 is a schematic perspective view of a main body of the present invention;
FIG. 2 is a schematic view of a main body three-dimensional separation structure of the present invention;
FIG. 3 is a schematic diagram of a three-dimensional structure of a hoisting control frame and a steel structure bridge stabilizing mechanism of the invention;
fig. 4 is a schematic diagram of a three-dimensional separation structure of a hoisting control frame and a steel structure bridge stabilizing mechanism of the invention;
FIG. 5 is a schematic view of a vertical structure of a hoisting control frame according to the present invention;
FIG. 6 is a schematic view of a vertical separation structure of a hoisting control frame according to the present invention;
FIG. 7 is a schematic diagram of a perspective structure of a steel bridge stabilizing mechanism according to the present invention;
FIG. 8 is a schematic diagram of a three-dimensional separation structure of a steel bridge stabilizing mechanism of the present invention;
FIG. 9 is a perspective view of a positioning assembly according to the present invention;
Fig. 10 is a schematic perspective view of a positioning control assembly according to the present invention.
In the figure, 1, a sling cart; 2, hook control rack, 21, top plate, 22, chute, 23, pneumatic push rod connection plate, 24, hanging block, 25, pneumatic push rod, 26, gas control, 27, pipe, 28, push plate, 29, riser, 210, cross bar, 211, telescoping plate, 212, spring, 213, rotating rod, 214, hinged block, 215, Z-shaped push-pull rod, 216, push-pull cross bar, 217, guide block, 218, L-shaped connecting rod, 219, second guide block connecting rod, 2110, second guide block, 2111, hook connecting rod, 2112, hook, 3, steel bridge stabilizing mechanism, 31, positioning assembly, 311, inverted plate, 312, L-shaped guide block, 313, chute plate, 314, C-shaped connecting rod, 315, top connecting block, 316, columnar push-pull rod guide plate, 317, columnar push-pull rod, 318, L-shaped telescoping plate, 319, C-shaped plate, 3110, rotating short rod hinge block, 3111, rotating short rod, 3112, columnar rod, 3113, positioning clamp plate, 32, positioning control assembly, 321, V-shaped hinge block, V-shaped push-pull rod, 324, H-shaped pull rod, and H-shaped hinge plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-3, the invention provides a steel structure bridge construction accurate positioning and guiding device based on three-dimensional coordinates, which comprises a sling cart 1, wherein a lifting hook control frame 2 is arranged at the bottom of the front side of the sling cart 1, and a steel structure bridge stabilizing mechanism 3 is arranged at the bottom of the lifting hook control frame 2.
As shown in fig. 2-9, the hook control rack 2 comprises a top plate 21, a chute 22 is arranged at the top of the top plate 21, a pneumatic push rod connecting plate 23 is fixedly connected to the middle part of the top plate 21, a hanging block 24 is fixedly connected to the middle part of the top of the pneumatic push rod connecting plate 23, the top of the hanging block 24 is fixedly connected to the bottom of the front side of the sling cart 1, pneumatic push rods 25 are fixedly connected to the front side and the rear side of the top of the pneumatic push rod connecting plate 23, a gas control member 26 is fixedly connected to the front side of the top plate 21, pipelines 27 are fixedly connected to the top of the outer walls of the two pneumatic push rods 25, one ends of the two pipelines 27, which are far away from the pneumatic push rods 25, are fixedly connected to the front side of the gas control member 26, push plates 28 are fixedly connected to the outer ends of the two pneumatic push rods 25, vertical plates 29 are fixedly connected to the left and right sides of the bottom of the top plate 21, a cross rod 210 is fixedly connected to the front and rear sides of the inner sides of the two vertical plates 29, the bottoms of the two push plates 28 extend to the inner sides of the two vertical plates 29 through the sliding grooves 22 formed in the top plate 21 and are fixedly connected with the retracting and expanding plates 211, the front side and the rear side of the outer sides of the two push plates 28 are fixedly connected with Z-shaped push rods 215, one sides of the bottoms of the two groups of Z-shaped push rods 215, which are far away from the push plates 28, are respectively and rotationally connected with push-pull cross rods 216, the tops of the middle parts of the inner sides of the two retracting and expanding plates 211 are respectively and rotationally connected with rotating rods 213, the bottoms of the two retracting and expanding plates 211 are respectively and slidingly connected with the left side and the right side of the tops of the two cross rods 210, the front side and the rear side of the outer sides of the two retracting and expanding plates 211 are respectively and fixedly connected with springs 212, one ends of the two springs 212, which are far away from the retracting and expanding plates 211, are respectively and fixedly connected with the inner sides of the two vertical plates 29, the bottoms of the two rotating rods 213 are rotationally connected with hinging blocks 214, the middle parts of the outer sides of the two vertical plates 29 are respectively and fixedly connected with L-shaped connecting rods 218, the bottoms of the inner sides of the two L-shaped connecting rods 218 are fixedly connected with guide blocks 217, the two sides of the bottom of the guide block 217 are fixedly connected with second guide block connecting rods 219, the bottoms of the two second guide block connecting rods 219 are fixedly connected with second guide blocks 2110, the bottoms of the L-shaped connecting rods 218 are fixedly connected with lifting hook connecting rods 2111, the outer walls of the lifting hook connecting rods 2111 are slidably connected with the inner walls of the hinge blocks 214 and the second guide blocks 2110, the bottom ends of the lifting hook connecting rods 2111 extend to the outer walls of the bottoms of the second guide blocks 2110 and are fixedly connected with lifting hooks 2112, the steel structure bridge stabilizing mechanism 3 comprises two positioning assemblies 31, the inner sides of the two positioning assemblies 31 are provided with positioning control assemblies 32, the two positioning assemblies 31 comprise inverted concave plates 311, the tops and the bottoms of the front side and the rear side of the two inverted concave plates 311 are fixedly connected with L-shaped guide blocks 312, the middle parts of the outer sides of the two inverted concave plates 311 are fixedly connected with sliding groove plates 313, the front and back sides of the outer side tops of the two inverted concave plates 311 are fixedly connected with C-shaped connecting rods 314, the inner sides of the two groups of C-shaped connecting rods 314 are fixedly connected with the left and right sides of the top plate 21, the middle parts of the tops of the two inverted concave plates 311 are fixedly connected with top connecting blocks 315, the front and back sides of one side of the two sliding groove plates 313 far away from the inverted concave plates 311 are fixedly connected with L-shaped folding and expanding plates 318, the outer sides of the two top connecting blocks 315 are fixedly connected with columnar push-pull rod guide plates 316, the inner sides of the front and back groups of L-shaped folding and expanding plates 318 are fixedly connected with C-shaped push-pull plates 319, the outer sides of the left and right groups of L-shaped folding and expanding plates 318 are mutually close to one another, the tops of the left and right groups of the L-shaped folding and expanding plates 318 are rotationally connected with rotating short rods 3111, the tops of the left and right groups of rotating short rods 3110 are rotationally connected with columnar rods 317, the outer walls of the two columnar push-pull rods 317 are both in sliding connection with the outer sides of the two columnar push-pull rod guide plates 316, the inner walls of the left and right groups of L-shaped guide blocks 312 are both in sliding connection with columnar rods 3112, the inner sides of the front and rear groups of columnar rods 3112 are both fixedly connected with positioning clamping plates 3113, the left and right groups of positioning clamping plates 3113 are both in sliding connection with the inner sides of the two inverted concave plates 311, the outer sides of the front and rear groups of positioning clamping plates 3113 are both fixedly connected with the inner sides of the front and rear groups of C-shaped push-pull plates 319, the positioning control assembly 32 comprises two V-shaped rotating rod hinging blocks 321, the inner sides of the two V-shaped rotating rod hinging blocks 321 are both fixedly connected with the tops of the outer sides of the left and right groups of C-shaped connecting rods 314, the outer sides of the two V-shaped rotating rod hinging blocks 321 are respectively and rotatably connected with a V-shaped rotating rod 322, the bottoms of the two V-shaped rotating rods 322 are respectively and fixedly connected with a lifting rod 323, the inner sides of the two lifting rods 323 are respectively and rotatably connected with an H-shaped lifting plate 324, the outer walls of the two H-shaped lifting plates 324 are respectively and slidably connected with the inner sides of the two groups of C-shaped connecting rods 314, the inner sides of the two H-shaped lifting plates 324 are respectively and rotatably connected with the inner sides of the two groups of C-shaped connecting rods 314, the front side and the rear side of the top of the two H-shaped lifting plates 324, which are close to one another, are respectively and rotatably connected with connecting rods 325, and the sides of the bottoms of the two H-shaped lifting plates 324, which are far away from one another, are respectively and rotatably connected with the top ends of the two columnar push-pull rods 317;
When the steel structure bridge needs to be lifted for installation and positioning, at this time, the steel structure bridge is connected with the lifting hook 2112, then the lifting hook control frame 2, the steel structure bridge stabilizing mechanism 3 and the connected bridge are initially lifted by the lifting truck 1, after the lifting truck is lifted to a distance of fifty centimeters away from the ground, the gas control piece 26 is started, the gas control piece 26 starts to convey gas to the inside of the two pneumatic push rods 25 through the two pipelines 27, the two pneumatic push rods 25 start to stretch after receiving the gas, the push plates 28 are pushed to move to two sides along the sliding grooves 22, the movement of the push plates 28 drives the expansion plate 211 to slide on the cross rod 210, meanwhile, the expansion plate 211 slides on the inner walls of the hinge blocks 214 and the second guide blocks 2110 through the action of the rotating rods 213 and the hinge blocks 214, and then the lifting hook 2112 is adjusted upwards to enable the lifting hook 2112 to pull the steel structure bridge to the inner sides of the two inverted concave plates 311, and at this time, the outer walls of the steel structure bridge are clamped in the grooves at the bottoms of the two inverted concave plates 311;
At the same time, as the hook control frame 2 is adjusted, the steel bridge stabilizing mechanism 3 also starts to play a role, when the two push plates 28 move outwards, the two groups of Z-shaped push rods 215 are simultaneously pushed to move outwards, the movement of the Z-shaped push rods 215 drives the push-pull cross rods 216 to move outwards, the two push-pull cross rods 216 move outwards and drive the two V-shaped rotating rods 322 to rotate around the two V-shaped rotating rod hinging blocks 321, the bottoms of the two V-shaped rotating rods 322 lift and pull the two H-shaped lifting plates 324 upwards through the lifting rod 323, the two H-shaped lifting plates 324 slide along the inner wall of the C-shaped connecting rod 314 in the lifting process, meanwhile, the lifting of the two H-shaped lifting plates 324 drives the columnar push rods 317 to slide upwards along the outer wall of the columnar push rod guide plates 316, the lifting of the columnar push rods 317 pulls the rotating short rod hinging blocks 3110, the rotating short rod 3111 rotates around the hinging point, so that the L-shaped expansion plate 318 is pushed to slide inwards along the chute plate 313, the C-shaped push-pull plate 319 is pushed to move inwards on two sides by the sliding of the L-shaped expansion plate 318, and then the two groups of positioning clamping plates 3113 are pushed to slide inwards along the inner wall of the inverted concave plate 311 by the two groups of C-shaped push-pull plates 319 until the two groups of positioning clamping plates 3113 are tightly attached to the outer wall of the steel structure bridge, so that stable clamping of the steel structure bridge is realized, at the moment, the position of the steel structure bridge is accurately positioned due to the clamping action of the two groups of positioning clamping plates 3113, installation errors caused by shaking or shifting in the hoisting process are avoided, and meanwhile, the steel structure bridge is firmly suspended in the air due to upward pulling of the lifting hooks 2112, so that convenience is provided for subsequent installation work;
After the steel structure bridge is stably clamped, an operator can further adjust the position of the sling cart 1, accurately align the steel structure bridge to the installation position, realize the accurate positioning of three-dimensional coordinates based on the lifting points and the installation points, at the moment, the positions of the sling cart 1 and the steel structure bridge are monitored in real time by utilizing a high-precision sensor, so that the position precision of the steel structure bridge in the installation process is ensured, the operator can slowly descend the steel structure bridge along a preset track by controlling the movement of the sling cart 1 until the steel structure bridge is accurately installed on the design position, in the installation process, the steel structure bridge stabilizing mechanism 3 continuously plays a role, keeps the stability of the steel structure bridge, prevents the steel structure bridge from shaking or shifting in the installation process, once the steel structure bridge is installed in place, the operator can loosen the lifting hook control frame 2 to disconnect the lifting hooks 2112 from the steel structure bridge, at the moment, the steel structure bridge stabilizing mechanism 3 can be automatically unlocked, two groups of positioning clamp plates 3113 loosen the clamping of the steel structure bridge, the whole installation process is completed, and the steel structure construction accurate positioning guide device and method based on the three-dimensional coordinates of the steel structure bridge are greatly improved, the efficiency and the risk of the steel structure bridge in the installation process is reduced;
in the whole construction process, the accurate positioning guide device and the accurate positioning guide method can ensure the accurate installation of the steel structure bridge, greatly improve the construction efficiency and the installation quality, and simultaneously, the device has simple structure and convenient operation, is suitable for the construction of the steel structure bridge in various scales, and has wide application prospect.
In addition, the invention also relates to a steel structure bridge construction accurate positioning and guiding device and method based on three-dimensional coordinates, comprising the following steps:
Firstly, transporting a sling cart 1, a lifting hook control frame 2, a steel structure bridge stabilizing mechanism 3 and a steel structure bridge to be installed to a construction site, and ensuring that all equipment is in a good working state;
Step two, determining three-dimensional coordinates of a hoisting point and a mounting point according to specific conditions of a construction site and design requirements of the steel structure bridge, and ensuring position accuracy in the hoisting process;
Step three, connecting the steel structure bridge with the sling cart 1 through the lifting hook control frame 2, and utilizing the adjusting function of the lifting hook control frame 2 to primarily lift the steel structure bridge to a proper height, at the moment, starting the gas control piece 26, pushing the action of the retracting and expanding plate 211 and the lifting hook connecting rod 2111 through the extension of the pneumatic push rod 25, adjusting the position of the lifting hook 2112, so that the steel structure bridge can smoothly enter the inverted concave plate 311 of the steel structure bridge stabilizing mechanism 3 and be stably clamped;
Step four, after the steel structure bridge is stably clamped, an operator adjusts the position of the sling cart 1 according to real-time monitoring data of the high-precision sensor, so as to ensure that the steel structure bridge slowly descends along a preset track until the steel structure bridge is accurately installed on a design position;
and fifthly, once the steel structure bridge is installed in place, an operator releases the lifting hook control frame 2, the connection between the lifting hooks 2112 and the steel structure bridge is disconnected, and meanwhile, the steel structure bridge stabilizing mechanism 3 is automatically unlocked, and the clamping of the steel structure bridge is released, so that the whole installation process is completed.
The invention has the working principle that when the steel structure bridge is required to be hoisted for installation and positioning, the steel structure bridge is connected with the lifting hook 2112, and then the lifting hook control frame 2 is hoisted by the hoisting truck 1, After the steel structure bridge stabilizing mechanism 3 and the connected bridge are initially lifted to a distance of fifty centimeters away from the ground, the gas control member 26 is started at this time, the gas control member 26 starts to convey gas to the inside of the two pneumatic push rods 25 through the two pipelines 27, the two pneumatic push rods 25 start to stretch after receiving the gas, the push plates 28 are pushed to move to two sides along the sliding grooves 22, the movement of the push plates 28 drives the expanding plate 211 to slide on the cross rod 210, meanwhile, the expanding plate 211 slides on the inner wall of the second guide block 2110 through the action of the rotating rod 213 and the hinging block 214, the lifting hook connecting rod 2111 slides on the inner wall of the hinging block 214, the position of the lifting hook 2112 is adjusted upwards, the lifting hook 2112 pulls the steel structure bridge to the inner side of the two inverted concave plates 311, at this time, the outer wall of the steel structure bridge is clamped in the grooves at the bottoms of the two inverted concave plates 311, simultaneously, along with the adjustment of the lifting hook control frame 2, the steel bridge stabilizing mechanism 3 also starts to act, when the two push plates 28 move outwards, the two groups of Z-shaped push rods 215 are pushed to move outwards simultaneously, the movement of the Z-shaped push rods 215 drives the push-pull cross rods 216 to move outwards, the two push-pull cross rods 216 move outwards and drive the two V-shaped rotating rods 322 to rotate around the two V-shaped rotating rod hinging blocks 321, the bottoms of the two V-shaped rotating rods 322 lift and pull the two H-shaped lifting plates 324 upwards through the lifting rods 323, the two H-shaped lifting plates 324 slide along the inner wall of the C-shaped connecting rod 314 in the lifting process, the lifting of the two H-shaped lifting plates 324 drives the columnar push rods 317 to slide upwards along the outer wall of the columnar push rod guide plates 316, the lifting of the columnar push rods 317 pulls the rotating short rod hinging blocks 3110 to enable the rotating short rods 3111 to rotate around hinging points, thereby pushing the L-shaped expansion plate 318 to slide inwards along the chute plate 313, the sliding of the L-shaped expansion plate 318 causes the C-shaped push-pull plate 319 to move inwards at both sides, and then the two groups of positioning clamping plates 3113 are pushed to slide inwards along the inner wall of the inverted concave plate 311 by the two groups of C-shaped push-pull plates 319 until the two groups of positioning clamping plates 3113 are tightly attached to the outer wall of the steel structure bridge, after the steel structure bridge is stably clamped, an operator can further adjust the position of the lifting truck 1, accurately align the steel structure bridge to the installation position, realize the accurate positioning of three-dimensional coordinates based on the lifting points and the installation points, at the moment, the positions of the lifting truck 1 and the steel structure bridge are monitored in real time by utilizing the high-precision sensor, ensure the steel construction bridge in the position accuracy of installation, operating personnel can make the steel construction bridge slowly descend along predetermined orbit through controlling the removal of sling cart 1, until its accurate installation on the design position, in the installation, steel construction bridge stabilizing mean 3 keeps playing a role, keep the stability of steel construction bridge, prevent that it from taking place to rock or squint in the installation, once steel construction bridge installs in place, operating personnel can loosen lifting hook control frame 2, with the disconnection of lifting hook 2112 and steel construction bridge, at this moment, steel construction bridge stabilizing mean 3 can automatic unblock, two sets of locating clamp plates 3113 loosen the centre gripping to steel construction bridge, accomplish whole installation.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.