CN210498968U - Fixing device for welding U-shaped rib of steel box girder - Google Patents
Fixing device for welding U-shaped rib of steel box girder Download PDFInfo
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- CN210498968U CN210498968U CN201920895772.4U CN201920895772U CN210498968U CN 210498968 U CN210498968 U CN 210498968U CN 201920895772 U CN201920895772 U CN 201920895772U CN 210498968 U CN210498968 U CN 210498968U
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Abstract
The utility model discloses a fixing device for welding U ribs of a steel box girder, which belongs to the technical field of steel box girder welding and comprises a supporting convex frame group and a plurality of fixing tables which are longitudinally arranged in parallel; the fixed table comprises a channel steel frame, and the supporting convex frame group comprises a plurality of supporting convex frames; the supporting convex frames are symmetrical relative to the center of the channel steel frame, and the height of the supporting convex frames from the middle to the two sides is gradually reduced; the supporting convex frames extend longitudinally and are arranged corresponding to the U ribs and comprise arc tops, vertical plates and transverse plates; the cambered surface of the cambered top is attached to the cambered surface of the panel in a bending way; the upper surface of the channel steel frame is provided with an upright post corresponding to each supporting convex frame; the transverse plate is provided with a plurality of blind holes extending to the vertical plate; the blind holes are matched with the upright posts, so that the supporting convex frames are supported on the channel steel frames of the fixed tables which are longitudinally arranged in parallel. The utility model discloses a be used for steel case roof beam U rib welded fixing device supports the protruding frame and can conveniently dismantle the change, can adapt to the panel that multiple radian required, and the material is few moreover, does not harm the panel.
Description
Technical Field
The utility model belongs to the technical field of the steel case roof beam welding, specifically speaking relates to be used for steel case roof beam U rib welded fixing device.
Background
The steel box girder has the advantages of light weight, large bearing capacity, short construction period and the like, and is widely applied to the construction of steel structure bridges. However, the steel box girder panel has various fatigue cracking problems due to the local stress concentration, and weld root cracks and weld leg cracks which are initiated at the joint of the U rib and the panel are widely concerned. The cracks are likely to develop into through cracks towards the panel, and the driving safety is influenced.
In the welding process of the U-shaped rib and the panel, the metal at the welding position can generate a corresponding expansion phenomenon after meeting high temperature, and after the metal at the welding position is cooled, the whole metal structure forms a contraction phenomenon again, so that welding deformation and welding stress are generated. Welding stress and welding deformation can also affect the properties of the welded structure, such as strength, size, stiffness, stability and accuracy, corrosion under pressure and stability, etc., under certain conditions.
The U rib and the panel have transverse and longitudinal deformation after welding, and the mechanical straightening technology has great difficulty. When the U-shaped rib is assembled before welding, the deformation in the opposite direction is preset to offset and compensate welding deformation, and the problem of welding deformation of the U-shaped rib and the panel can be solved. Different preset bending radians are needed for the U ribs and the panels with different thicknesses. This requires the fabrication of multiple sets of support bosses to match the support panels. The existing supporting convex frame group of the fixing device for welding the U-shaped rib of the steel box girder cannot be disassembled, and the supporting panel cannot be well adjusted.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the above-mentioned weak point provides and is used for steel box girder U rib welded fixing device, plans to solve current being used for steel box girder U rib welded fixing device's the unable dismantlement of support flange group, also unable fine regulation supporting panel's problem. In order to achieve the above object, the utility model provides a following technical scheme:
the fixing device is used for welding the U ribs of the steel box girder, is used for fixing the panel 1, is welded with a plurality of transversely arranged U ribs 2 on the panel 1, and the U ribs 2 longitudinally extend and comprise a supporting convex frame group 7 and a plurality of fixing tables 3 which are longitudinally arranged in parallel; the fixed table 3 comprises a channel steel frame 4, and a supporting convex frame group 7 is arranged on the upper surface of the channel steel frame 4; the supporting convex frame group 7 comprises a plurality of supporting convex frames 71; the plurality of supporting convex frames 71 are symmetrical relative to the center of the channel steel frame 4, and the height of the supporting convex frames 71 decreases from the middle to the two sides, so that the panel 1 is in a convex arc shape when being attached to the tops of all the supporting convex frames 71; the supporting convex frame 71 extends longitudinally and is arranged corresponding to the U rib 2, and comprises an arc top 72, a vertical plate 73 and a transverse plate 74; the horizontal plate 74 is fixed on the lower surface of the vertical plate 73, and the arc top 72 is fixed on the upper surface of the vertical plate 73; the cambered surface of the cambered top 72 is attached to the curved cambered surface of the panel 1; the upper surface of the channel steel frame 4 is provided with an upright post 75 corresponding to each supporting convex frame 71; the transverse plate 74 is provided with a plurality of blind holes 76 extending to the vertical plate 73; the blind holes 76 are matched with the upright columns 75, so that the supporting convex frames 71 are supported on the channel steel frames 4 of the fixed platforms 3 which are longitudinally arranged in parallel. According to the structure, the fixing device of the utility model, firstly, the panel 1 is placed on the supporting convex frame group 7, and the supporting convex frame group 7 comprises a plurality of supporting convex frames 71; the supporting convex frame group 7 of the supporting panel is divided into a plurality of supporting convex frames 71, so that the material is saved, and the panel with various bending requirements can be adapted by replacing individual supporting convex frames 71; the plurality of supporting convex frames 71 are symmetrical relative to the center of the channel steel frame 4, and the height of the supporting convex frames 71 decreases from the middle to the two sides, so that the panel 1 is in a convex arc shape when being attached to the tops of all the supporting convex frames 71, and the purpose of presetting the deformation in the opposite direction to offset and compensate the welding deformation is achieved; a plurality of U ribs 2 which are transversely arranged are welded on the panel 1, the U ribs 2 longitudinally extend, the supporting convex frames 71 longitudinally extend and are arranged corresponding to the U ribs 2, the stability of the bent panel is improved, and the welding positions have enough support to resist deformation; in order to completely support the panel, a plurality of fixed tables 3 which are longitudinally arranged in parallel are arranged below the supporting convex frame group 7; the plurality of fixing platforms 3 support large-area panels instead of a whole large device, so that the weight and the material consumption of the fixing device are reduced, and the fixing device is convenient to install and maintain; the fixed table 3 comprises a channel steel frame 4, and a supporting convex frame group 7 is arranged on the upper surface of the channel steel frame 4; the channel steel frame 4 has light structure, good structural strength and low price; the channel steel frame 4 is provided with reinforcing ribs; the supporting convex frame 71 comprises an arc top 72, a vertical plate 73 and a transverse plate 74, the arc surface of the arc top 72 is attached to the curved arc surface of the panel 1, the arc top 72 is prevented from damaging the panel in the bending process due to large-area contact, and stable support and radian are provided; the blind holes 76 are matched with the upright columns 75, so that the supporting convex frames 71 are supported on the channel steel frames 4 of the fixed platforms 3 which are longitudinally arranged in parallel, and the supporting convex frames 71 enable all channel steel frames 4 to be connected into a whole, synchronously turn over and stably support on all channel steel frames 4.
Further, the fixed table 3 further comprises a diamond-shaped support frame 5, a first hydraulic telescopic rod 6 and two symmetrically arranged pressing devices 8; the pressing device 8 comprises a pressing head 81 and a rod part 82; the pressing head 81 is arranged at the upper end of the rod part 82; the non-end part of the rod part 82 is hinged to one side of the channel steel frame 4; the rhombic strut 5 comprises an upper hinged end 51, a lower hinged end 52 and two side hinged ends 53; the telescopic end of the first hydraulic telescopic rod 6 is hinged with the lower hinged end 52; the upper hinged end 51 is hinged to the middle of the lower surface of the channel steel frame 4; the side hinged end 53 can be pushed against the lower part of the hinged point of the rod part 82, so that the rod part 82 is turned over, and the pressing head 81 is driven to press the two sides of the panel 1. According to the structure, when the pressing head 81 needs to press the two sides of the panel to bend the panel, the telescopic end of the first hydraulic telescopic rod 6 extends from bottom to top, the lower hinged end 52 of the diamond-shaped support frame 5 moves from bottom to top and is close to the upper hinged end 51, the two side hinged ends 53 are outwards opened to two sides and prop against the lower part of the hinged point of the rod part 82, so that the rod part 82 is turned over to drive the pressing head 81 to press the two sides of the panel 1; the rhombic strut 5 has a powerful amplification effect, the configuration of the first hydraulic telescopic rod 6 can be reduced, and the rod part 82 is arranged through a force arm, so that the force can be amplified again, and the panel can be easily pressed and bent by the pressing head 81.
Further, the fixed table 3 further comprises a hinge seat 31; the channel steel frame 4 is fixed at the top of the hinge seat 31; a first hydraulic telescopic rod 6 is fixed on the hinged seat 31, and the first hydraulic telescopic rod 6 is used for driving the lower hinged end 52 to be close to or far away from the upper hinged end 51, so that the two side hinged ends 53 are mutually far away from or close to each other. As can be seen from the above structure, the first hydraulic telescopic rod 6 is fixed and drives the lower hinged end 52 to be close to or far away from the upper hinged end 51.
Further, the fixed table 3 further comprises a base 32 and a second hydraulic telescopic rod 33; the bottom of the hinged seat 31 is hinged on a base 32, and a second hydraulic telescopic rod 33 is hinged on the base 32; the telescopic end of the second hydraulic telescopic rod 33 is hinged to the hinge seat 31 and used for driving the hinge seat 31 to turn. By the structure, the second hydraulic telescopic rod 33 controls the overturning of the hinge seat 31 through stretching, so that the U rib and the panel are welded conveniently.
Further, the diamond-shaped bracket 5 comprises two convex top blocks 54; the side hinged end 53 is arranged on the convex top block 54; the ejector block 54 is adapted to abut against a lower portion of the hinge point of the lever portion 82 to turn the lever portion 82. With the above structure, the protruding block 54 prevents the side hinge end 53 from directly contacting the rod 82, and prevents the side hinge end 53 from deforming to affect the movement.
Furthermore, the top of the pressing head 81 is hinged to the upper end of the rod part 82, so that the bottom surface of the pressing head 81 is always attached to two sides of the panel 1 in a large area when the two sides of the panel 1 are pressed. According to the structure, the top of the pressing head 81 is hinged to the upper end of the rod part 82, so that the bottom surface of the pressing head 81 is always attached to two sides of the panel 1 in a large area when the two sides of the panel 1 are pressed, and the panel is prevented from being damaged by the pressing head 81.
Further, the angle between the two struts 55 corresponding to the side hinged ends 53 of the diamond-shaped brackets 5 is always less than ninety degrees. According to the structure, the included angle of the two support rods 55 is always smaller than ninety degrees, and the diamond-shaped support frame 5 has a powerful amplification effect; the diamond-shaped brackets 5 also ensure that the two pressing heads 81 are synchronously pressed on the two sides of the panel.
Further, the length of the articulating portion of the rod portion 82 is at least three times the length of the upper portion. As can be seen from the above structure, the rod portion 82 has a powerful amplification effect.
Furthermore, the channel steel frames 4 of the plurality of fixed platforms 3 which are longitudinally arranged in parallel are connected into a whole. According to the structure, all the channel steel frames 4 can be connected into a whole through the welding rods or the steel plates, and the overturning synchronism of all the channel steel frames 4 is better.
The utility model has the advantages that:
1. the utility model discloses a fixing device for welding U ribs of a steel box girder, which comprises a supporting convex frame group and a plurality of fixing tables which are longitudinally arranged in parallel; the fixed table comprises a channel steel frame, and the supporting convex frame group comprises a plurality of supporting convex frames; the supporting convex frames are symmetrical relative to the center of the channel steel frame, and the height of the supporting convex frames from the middle to the two sides is gradually reduced; the supporting convex frames extend longitudinally and are arranged corresponding to the U ribs and comprise arc tops, vertical plates and transverse plates; the cambered surface of the cambered top is attached to the cambered surface of the panel in a bending way; the upper surface of the channel steel frame is provided with an upright post corresponding to each supporting convex frame; the transverse plate is provided with a plurality of blind holes extending to the vertical plate; the blind holes are matched with the upright posts, so that the supporting convex frames are supported on the channel steel frames of the fixed tables which are longitudinally arranged in parallel. The utility model discloses a be used for steel case roof beam U rib welded fixing device supports the protruding frame and can conveniently dismantle the change, can adapt to the panel that multiple radian required, and the material is few moreover, does not harm the panel.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the three-dimensional structure of the supporting ledge of the present invention;
fig. 3 is a schematic view of the structure of the support ledge of the present invention;
in the drawings: 1-panel, 2-U rib, 3-fixed table, 4-channel steel frame, 5-diamond support frame, 6-first hydraulic telescopic rod, 7-support convex frame group, 8-hold-down device, 31-hinged seat, 32-base, 33-second hydraulic telescopic rod, 51-upper hinged end, 52-lower hinged end, 53-side hinged end, 54-convex top block, 55-support rod, 71-support convex frame, 72-arc top, 73-vertical plate, 74-horizontal plate, 75-vertical column, 76-blind hole, 81-hold-down head and 82-rod part.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments, but the present invention is not limited to the following embodiments.
The first embodiment is as follows:
see figures 1-3. The fixing device is used for welding the U ribs of the steel box girder, is used for fixing the panel 1, is welded with a plurality of transversely arranged U ribs 2 on the panel 1, and the U ribs 2 longitudinally extend and comprise a supporting convex frame group 7 and a plurality of fixing tables 3 which are longitudinally arranged in parallel; the fixed table 3 comprises a channel steel frame 4, and a supporting convex frame group 7 is arranged on the upper surface of the channel steel frame 4; the supporting convex frame group 7 comprises a plurality of supporting convex frames 71; the plurality of supporting convex frames 71 are symmetrical relative to the center of the channel steel frame 4, and the height of the supporting convex frames 71 decreases from the middle to the two sides, so that the panel 1 is in a convex arc shape when being attached to the tops of all the supporting convex frames 71; the supporting convex frame 71 extends longitudinally and is arranged corresponding to the U rib 2, and comprises an arc top 72, a vertical plate 73 and a transverse plate 74; the horizontal plate 74 is fixed on the lower surface of the vertical plate 73, and the arc top 72 is fixed on the upper surface of the vertical plate 73; the cambered surface of the cambered top 72 is attached to the curved cambered surface of the panel 1; the upper surface of the channel steel frame 4 is provided with an upright post 75 corresponding to each supporting convex frame 71; the transverse plate 74 is provided with a plurality of blind holes 76 extending to the vertical plate 73; the blind holes 76 are matched with the upright columns 75, so that the supporting convex frames 71 are supported on the channel steel frames 4 of the fixed platforms 3 which are longitudinally arranged in parallel. According to the structure, the fixing device of the utility model, firstly, the panel 1 is placed on the supporting convex frame group 7, and the supporting convex frame group 7 comprises a plurality of supporting convex frames 71; the supporting convex frame group 7 of the supporting panel is divided into a plurality of supporting convex frames 71, so that the material is saved, and the panel with various bending requirements can be adapted by replacing individual supporting convex frames 71; the plurality of supporting convex frames 71 are symmetrical relative to the center of the channel steel frame 4, and the height of the supporting convex frames 71 decreases from the middle to the two sides, so that the panel 1 is in a convex arc shape when being attached to the tops of all the supporting convex frames 71, and the purpose of presetting the deformation in the opposite direction to offset and compensate the welding deformation is achieved; a plurality of U ribs 2 which are transversely arranged are welded on the panel 1, the U ribs 2 longitudinally extend, the supporting convex frames 71 longitudinally extend and are arranged corresponding to the U ribs 2, the stability of the bent panel is improved, and the welding positions have enough support to resist deformation; in order to completely support the panel, a plurality of fixed tables 3 which are longitudinally arranged in parallel are arranged below the supporting convex frame group 7; the plurality of fixing platforms 3 support large-area panels instead of a whole large device, so that the weight and the material consumption of the fixing device are reduced, and the fixing device is convenient to install and maintain; the fixed table 3 comprises a channel steel frame 4, and a supporting convex frame group 7 is arranged on the upper surface of the channel steel frame 4; the channel steel frame 4 has light structure, good structural strength and low price; the channel steel frame 4 is provided with reinforcing ribs; the supporting convex frame 71 comprises an arc top 72, a vertical plate 73 and a transverse plate 74, the arc surface of the arc top 72 is attached to the curved arc surface of the panel 1, the arc top 72 is prevented from damaging the panel in the bending process due to large-area contact, and stable support and radian are provided; the blind holes 76 are matched with the upright columns 75, so that the supporting convex frames 71 are supported on the channel steel frames 4 of the fixed platforms 3 which are longitudinally arranged in parallel, and the supporting convex frames 71 enable all channel steel frames 4 to be connected into a whole, synchronously turn over and stably support on all channel steel frames 4.
Example two:
see figures 1-3. The fixing device is used for welding the U ribs of the steel box girder, is used for fixing the panel 1, is welded with a plurality of transversely arranged U ribs 2 on the panel 1, and the U ribs 2 longitudinally extend and comprise a supporting convex frame group 7 and a plurality of fixing tables 3 which are longitudinally arranged in parallel; the fixed table 3 comprises a channel steel frame 4, and a supporting convex frame group 7 is arranged on the upper surface of the channel steel frame 4; the supporting convex frame group 7 comprises a plurality of supporting convex frames 71; the plurality of supporting convex frames 71 are symmetrical relative to the center of the channel steel frame 4, and the height of the supporting convex frames 71 decreases from the middle to the two sides, so that the panel 1 is in a convex arc shape when being attached to the tops of all the supporting convex frames 71; the supporting convex frame 71 extends longitudinally and is arranged corresponding to the U rib 2, and comprises an arc top 72, a vertical plate 73 and a transverse plate 74; the horizontal plate 74 is fixed on the lower surface of the vertical plate 73, and the arc top 72 is fixed on the upper surface of the vertical plate 73; the cambered surface of the cambered top 72 is attached to the curved cambered surface of the panel 1; the upper surface of the channel steel frame 4 is provided with an upright post 75 corresponding to each supporting convex frame 71; the transverse plate 74 is provided with a plurality of blind holes 76 extending to the vertical plate 73; the blind holes 76 are matched with the upright columns 75, so that the supporting convex frames 71 are supported on the channel steel frames 4 of the fixed platforms 3 which are longitudinally arranged in parallel. According to the structure, the fixing device of the utility model, firstly, the panel 1 is placed on the supporting convex frame group 7, and the supporting convex frame group 7 comprises a plurality of supporting convex frames 71; the supporting convex frame group 7 of the supporting panel is divided into a plurality of supporting convex frames 71, so that the material is saved, and the panel with various bending requirements can be adapted by replacing individual supporting convex frames 71; the plurality of supporting convex frames 71 are symmetrical relative to the center of the channel steel frame 4, and the height of the supporting convex frames 71 decreases from the middle to the two sides, so that the panel 1 is in a convex arc shape when being attached to the tops of all the supporting convex frames 71, and the purpose of presetting the deformation in the opposite direction to offset and compensate the welding deformation is achieved; a plurality of U ribs 2 which are transversely arranged are welded on the panel 1, the U ribs 2 longitudinally extend, the supporting convex frames 71 longitudinally extend and are arranged corresponding to the U ribs 2, the stability of the bent panel is improved, and the welding positions have enough support to resist deformation; in order to completely support the panel, a plurality of fixed tables 3 which are longitudinally arranged in parallel are arranged below the supporting convex frame group 7; the plurality of fixing platforms 3 support large-area panels instead of a whole large device, so that the weight and the material consumption of the fixing device are reduced, and the fixing device is convenient to install and maintain; the fixed table 3 comprises a channel steel frame 4, and a supporting convex frame group 7 is arranged on the upper surface of the channel steel frame 4; the channel steel frame 4 has light structure, good structural strength and low price; the channel steel frame 4 is provided with reinforcing ribs; the supporting convex frame 71 comprises an arc top 72, a vertical plate 73 and a transverse plate 74, the arc surface of the arc top 72 is attached to the curved arc surface of the panel 1, the arc top 72 is prevented from damaging the panel in the bending process due to large-area contact, and stable support and radian are provided; the blind holes 76 are matched with the upright columns 75, so that the supporting convex frames 71 are supported on the channel steel frames 4 of the fixed platforms 3 which are longitudinally arranged in parallel, and the supporting convex frames 71 enable all channel steel frames 4 to be connected into a whole, synchronously turn over and stably support on all channel steel frames 4.
The fixed table 3 further comprises a diamond-shaped support frame 5, a first hydraulic telescopic rod 6 and two symmetrically arranged pressing devices 8; the pressing device 8 comprises a pressing head 81 and a rod part 82; the pressing head 81 is arranged at the upper end of the rod part 82; the non-end part of the rod part 82 is hinged to one side of the channel steel frame 4; the rhombic strut 5 comprises an upper hinged end 51, a lower hinged end 52 and two side hinged ends 53; the telescopic end of the first hydraulic telescopic rod 6 is hinged with the lower hinged end 52; the upper hinged end 51 is hinged to the middle of the lower surface of the channel steel frame 4; the side hinged end 53 can be pushed against the lower part of the hinged point of the rod part 82, so that the rod part 82 is turned over, and the pressing head 81 is driven to press the two sides of the panel 1. According to the structure, when the pressing head 81 needs to press the two sides of the panel to bend the panel, the telescopic end of the first hydraulic telescopic rod 6 extends from bottom to top, the lower hinged end 52 of the diamond-shaped support frame 5 moves from bottom to top and is close to the upper hinged end 51, the two side hinged ends 53 are outwards opened to two sides and prop against the lower part of the hinged point of the rod part 82, so that the rod part 82 is turned over to drive the pressing head 81 to press the two sides of the panel 1; the rhombic strut 5 has a powerful amplification effect, the configuration of the first hydraulic telescopic rod 6 can be reduced, and the rod part 82 is arranged through a force arm, so that the force can be amplified again, and the panel can be easily pressed and bent by the pressing head 81.
Example three:
see figures 1-3. The fixing device is used for welding the U ribs of the steel box girder, is used for fixing the panel 1, is welded with a plurality of transversely arranged U ribs 2 on the panel 1, and the U ribs 2 longitudinally extend and comprise a supporting convex frame group 7 and a plurality of fixing tables 3 which are longitudinally arranged in parallel; the fixed table 3 comprises a channel steel frame 4, and a supporting convex frame group 7 is arranged on the upper surface of the channel steel frame 4; the supporting convex frame group 7 comprises a plurality of supporting convex frames 71; the plurality of supporting convex frames 71 are symmetrical relative to the center of the channel steel frame 4, and the height of the supporting convex frames 71 decreases from the middle to the two sides, so that the panel 1 is in a convex arc shape when being attached to the tops of all the supporting convex frames 71; the supporting convex frame 71 extends longitudinally and is arranged corresponding to the U rib 2, and comprises an arc top 72, a vertical plate 73 and a transverse plate 74; the horizontal plate 74 is fixed on the lower surface of the vertical plate 73, and the arc top 72 is fixed on the upper surface of the vertical plate 73; the cambered surface of the cambered top 72 is attached to the curved cambered surface of the panel 1; the upper surface of the channel steel frame 4 is provided with an upright post 75 corresponding to each supporting convex frame 71; the transverse plate 74 is provided with a plurality of blind holes 76 extending to the vertical plate 73; the blind holes 76 are matched with the upright columns 75, so that the supporting convex frames 71 are supported on the channel steel frames 4 of the fixed platforms 3 which are longitudinally arranged in parallel. According to the structure, the fixing device of the utility model, firstly, the panel 1 is placed on the supporting convex frame group 7, and the supporting convex frame group 7 comprises a plurality of supporting convex frames 71; the supporting convex frame group 7 of the supporting panel is divided into a plurality of supporting convex frames 71, so that the material is saved, and the panel with various bending requirements can be adapted by replacing individual supporting convex frames 71; the plurality of supporting convex frames 71 are symmetrical relative to the center of the channel steel frame 4, and the height of the supporting convex frames 71 decreases from the middle to the two sides, so that the panel 1 is in a convex arc shape when being attached to the tops of all the supporting convex frames 71, and the purpose of presetting the deformation in the opposite direction to offset and compensate the welding deformation is achieved; a plurality of U ribs 2 which are transversely arranged are welded on the panel 1, the U ribs 2 longitudinally extend, the supporting convex frames 71 longitudinally extend and are arranged corresponding to the U ribs 2, the stability of the bent panel is improved, and the welding positions have enough support to resist deformation; in order to completely support the panel, a plurality of fixed tables 3 which are longitudinally arranged in parallel are arranged below the supporting convex frame group 7; the plurality of fixing platforms 3 support large-area panels instead of a whole large device, so that the weight and the material consumption of the fixing device are reduced, and the fixing device is convenient to install and maintain; the fixed table 3 comprises a channel steel frame 4, and a supporting convex frame group 7 is arranged on the upper surface of the channel steel frame 4; the channel steel frame 4 has light structure, good structural strength and low price; the channel steel frame 4 is provided with reinforcing ribs; the supporting convex frame 71 comprises an arc top 72, a vertical plate 73 and a transverse plate 74, the arc surface of the arc top 72 is attached to the curved arc surface of the panel 1, the arc top 72 is prevented from damaging the panel in the bending process due to large-area contact, and stable support and radian are provided; the blind holes 76 are matched with the upright columns 75, so that the supporting convex frames 71 are supported on the channel steel frames 4 of the fixed platforms 3 which are longitudinally arranged in parallel, and the supporting convex frames 71 enable all channel steel frames 4 to be connected into a whole, synchronously turn over and stably support on all channel steel frames 4.
The fixed table 3 further comprises a diamond-shaped support frame 5, a first hydraulic telescopic rod 6 and two symmetrically arranged pressing devices 8; the pressing device 8 comprises a pressing head 81 and a rod part 82; the pressing head 81 is arranged at the upper end of the rod part 82; the non-end part of the rod part 82 is hinged to one side of the channel steel frame 4; the rhombic strut 5 comprises an upper hinged end 51, a lower hinged end 52 and two side hinged ends 53; the telescopic end of the first hydraulic telescopic rod 6 is hinged with the lower hinged end 52; the upper hinged end 51 is hinged to the middle of the lower surface of the channel steel frame 4; the side hinged end 53 can be pushed against the lower part of the hinged point of the rod part 82, so that the rod part 82 is turned over, and the pressing head 81 is driven to press the two sides of the panel 1. According to the structure, when the pressing head 81 needs to press the two sides of the panel to bend the panel, the telescopic end of the first hydraulic telescopic rod 6 extends from bottom to top, the lower hinged end 52 of the diamond-shaped support frame 5 moves from bottom to top and is close to the upper hinged end 51, the two side hinged ends 53 are outwards opened to two sides and prop against the lower part of the hinged point of the rod part 82, so that the rod part 82 is turned over to drive the pressing head 81 to press the two sides of the panel 1; the rhombic strut 5 has a powerful amplification effect, the configuration of the first hydraulic telescopic rod 6 can be reduced, and the rod part 82 is arranged through a force arm, so that the force can be amplified again, and the panel can be easily pressed and bent by the pressing head 81.
The fixed table 3 further comprises a hinge seat 31; the channel steel frame 4 is fixed at the top of the hinge seat 31; a first hydraulic telescopic rod 6 is fixed on the hinged seat 31, and the first hydraulic telescopic rod 6 is used for driving the lower hinged end 52 to be close to or far away from the upper hinged end 51, so that the two side hinged ends 53 are mutually far away from or close to each other. As can be seen from the above structure, the first hydraulic telescopic rod 6 is fixed and drives the lower hinged end 52 to be close to or far away from the upper hinged end 51.
The fixed table 3 further comprises a base 32 and a second hydraulic telescopic rod 33; the bottom of the hinged seat 31 is hinged on a base 32, and a second hydraulic telescopic rod 33 is hinged on the base 32; the telescopic end of the second hydraulic telescopic rod 33 is hinged to the hinge seat 31 and used for driving the hinge seat 31 to turn. By the structure, the second hydraulic telescopic rod 33 controls the overturning of the hinge seat 31 through stretching, so that the U rib and the panel are welded conveniently.
The rhombic strut 5 comprises two convex top blocks 54; the side hinged end 53 is arranged on the convex top block 54; the ejector block 54 is adapted to abut against a lower portion of the hinge point of the lever portion 82 to turn the lever portion 82. With the above structure, the protruding block 54 prevents the side hinge end 53 from directly contacting the rod 82, and prevents the side hinge end 53 from deforming to affect the movement.
The top of the pressing head 81 is hinged to the upper end of the rod part 82, so that the bottom surface of the pressing head 81 is always attached to two sides of the panel 1 in a large area when the two sides of the panel 1 are pressed. According to the structure, the top of the pressing head 81 is hinged to the upper end of the rod part 82, so that the bottom surface of the pressing head 81 is always attached to two sides of the panel 1 in a large area when the two sides of the panel 1 are pressed, and the panel is prevented from being damaged by the pressing head 81.
The angle between the two support rods 55 corresponding to the side hinged end 53 of the diamond-shaped support frame 5 is always less than ninety degrees. According to the structure, the included angle of the two support rods 55 is always smaller than ninety degrees, and the diamond-shaped support frame 5 has a powerful amplification effect; the diamond-shaped brackets 5 also ensure that the two pressing heads 81 are synchronously pressed on the two sides of the panel.
The length of the articulating portion of the rod portion 82 is at least three times the length of the upper portion. As can be seen from the above structure, the rod portion 82 has a powerful amplification effect.
The channel steel frames 4 of the fixed platforms 3 which are longitudinally arranged in parallel are connected into a whole. According to the structure, all the channel steel frames 4 can be connected into a whole through the welding rods or the steel plates, and the overturning synchronism of all the channel steel frames 4 is better.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same way in the protection scope of the present invention.
Claims (9)
1. A fixing device for steel box girder U rib welded for fixing panel (1) to the welding has U rib (2) of a plurality of transverse arrangement on panel (1), U rib (2) longitudinal extension, its characterized in that: comprises a supporting convex frame group (7) and a plurality of fixed tables (3) which are longitudinally arranged in parallel; the fixed table (3) comprises a channel steel frame (4), and a supporting convex frame group (7) is arranged on the upper surface of the channel steel frame (4); the supporting convex frame group (7) comprises a plurality of supporting convex frames (71); the supporting convex frames (71) are symmetrical relative to the center of the channel steel frame (4), and the height of the supporting convex frames (71) from the middle to the two sides is gradually reduced, so that the panel (1) is in a convex arc shape when being attached to the tops of all the supporting convex frames (71); the supporting convex frame (71) longitudinally extends and is arranged corresponding to the U rib (2) and comprises an arc top (72), a vertical plate (73) and a transverse plate (74); the transverse plate (74) is fixed on the lower surface of the vertical plate (73), and the arc top (72) is fixed on the upper surface of the vertical plate (73); the cambered surface of the cambered top (72) is attached to the curved cambered surface of the panel (1); the upper surface of the channel steel frame (4) is provided with an upright post (75) corresponding to each supporting convex frame (71); the transverse plate (74) is provided with a plurality of blind holes (76) extending to the vertical plate (73); the blind holes (76) are matched with the upright columns (75) so that the supporting convex frames (71) are supported on the channel steel frames (4) of the fixed platforms (3) which are longitudinally arranged in parallel.
2. A fixing device for steel box girder U rib welding according to claim 1, characterized in that: the fixed table (3) further comprises a diamond-shaped support frame (5), a first hydraulic telescopic rod (6) and two symmetrically arranged pressing devices (8); the pressing device (8) comprises a pressing head (81) and a rod part (82); the pressing head (81) is arranged at the upper end of the rod part (82); the non-end part of the rod part (82) is hinged to one side of the channel steel frame (4); the rhombic strut (5) comprises an upper hinged end (51), a lower hinged end (52) and two side hinged ends (53); the telescopic end of the first hydraulic telescopic rod (6) is hinged with the lower hinged end (52); the upper hinged end (51) is hinged to the middle of the lower surface of the channel steel frame (4); the side hinged end (53) can be pushed against the lower part of a hinged point of the rod part (82), so that the rod part (82) is overturned to drive the pressing head (81) to press two sides of the panel (1).
3. A fixing device for steel box girder U rib welding according to claim 2, characterized in that: the fixed table (3) further comprises a hinge seat (31); the channel steel frame (4) is fixed at the top of the hinge seat (31); be fixed with first hydraulic telescoping rod (6) on articulated seat (31), articulated end (52) are close to or keep away from last articulated end (51) down in being used for driving first hydraulic telescoping rod (6), and then make two side articulated ends (53) keep away from each other or be close to.
4. A fixing device for steel box girder U rib welding according to claim 3, characterized in that: the fixed station (3) also comprises a base (32) and a second hydraulic telescopic rod (33); the bottom of the hinged seat (31) is hinged on a base (32), and a second hydraulic telescopic rod (33) is hinged on the base (32); the telescopic end of the second hydraulic telescopic rod (33) is hinged to the hinged seat (31) and used for driving the hinged seat (31) to overturn.
5. A fixing device for steel box girder U rib welding according to claim 4, characterized in that: the rhombic strut (5) comprises two convex top blocks (54); the side hinged end (53) is arranged on the convex top block (54); the convex top block (54) is used for propping against the lower position of the hinge point of the rod part (82) to turn the rod part (82).
6. A fixing device for steel box girder U rib welding according to claim 4, characterized in that: the top of the pressing head (81) is hinged to the upper end of the rod part (82), so that the bottom surface of the pressing head (81) can be always attached to two sides of the panel (1) in a large area when the two sides of the panel (1) are pressed.
7. A fixing device for steel box girder U rib welding according to claim 2, characterized in that: the included angle of the two support rods (55) corresponding to the side hinged end (53) of the rhombic strut (5) is always smaller than ninety degrees.
8. A fixing device for steel box girder U rib welding according to claim 2, characterized in that: the length of the hinged lower portion of the rod portion (82) is at least three times the length of the upper portion.
9. A fixing device for U-rib welding of a steel box girder according to any one of claims 1 to 8, wherein: the channel steel frames (4) of the fixed platforms (3) which are longitudinally arranged in parallel are connected into a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920895772.4U CN210498968U (en) | 2019-06-14 | 2019-06-14 | Fixing device for welding U-shaped rib of steel box girder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920895772.4U CN210498968U (en) | 2019-06-14 | 2019-06-14 | Fixing device for welding U-shaped rib of steel box girder |
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| Publication Number | Publication Date |
|---|---|
| CN210498968U true CN210498968U (en) | 2020-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920895772.4U Expired - Fee Related CN210498968U (en) | 2019-06-14 | 2019-06-14 | Fixing device for welding U-shaped rib of steel box girder |
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| CN (1) | CN210498968U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110091110A (en) * | 2019-06-14 | 2019-08-06 | 中铁八局集团第四工程有限公司 | Fixation device for U ribs of steel box girder welding |
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2019
- 2019-06-14 CN CN201920895772.4U patent/CN210498968U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110091110A (en) * | 2019-06-14 | 2019-08-06 | 中铁八局集团第四工程有限公司 | Fixation device for U ribs of steel box girder welding |
| CN110091110B (en) * | 2019-06-14 | 2023-08-08 | 中铁八局集团建筑工程有限公司 | Fixing device for welding U-shaped ribs of steel box girder |
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Granted publication date: 20200512 |