A traction and deviation correction mechanism for splicing steel box beams

Abstract

The utility model discloses a traction and deviation correction mechanism for splicing steel box girders, comprising a base, an arc-shaped slide symmetrically arranged on the upper end surface of the base, an arc-shaped groove arranged on the upper end surface of the arc-shaped slide, a rotating plate rotatably connected to the base arranged above the base, an arc-shaped slider fixedly arranged at a position corresponding to the arc-shaped groove on the lower end surface of the rotating plate, the arc-shaped slider is slidably connected to the arc-shaped groove, and a translation component is slidably arranged on the upper end surface of the rotating plate. The traction and deviation correction mechanism for splicing steel box girders described in the utility model has a rotating plate rotatably arranged on the base, an arc-shaped groove fixedly arranged on the base, and an arc-shaped slider arranged on the rotating plate, so that the rotating plate and the base can rotate relative to each other. When there is an angular deviation between the position of the steel box girder and the preset position, the rotating plate is rotated to adjust the angle of the steel box girder, and the translation component is used to adjust the mutually perpendicular position deviation of the steel box girder in the horizontal plane, so that the steel box girder can be quickly aligned and the splicing efficiency of the steel box girder is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of road and bridge construction equipment, and more specifically, to a traction and deviation-correcting mechanism for splicing steel box beams. Background Art

[0002] In the process of bridge construction, steel box girders are used more and more widely, and more and more bridges are using steel box girder structures. Steel box girders are generally thin-walled boxes connected by full welding of top plates, bottom plates, webs, transverse diaphragms, longitudinal diaphragms and stiffening ribs. With the continuous increase in the span of urban bridges and traffic pressure, large-span and large-width steel box girders are increasingly used. As the width of the steel box girder increases, the weight of each steel box girder segment increases accordingly, and the lifting tonnage requirements for the crane are also getting higher and higher.

[0003] Chinese patent document CN 220433419 U discloses a traction and deviation correction mechanism for splicing steel box beams, comprising two fixed plates, the two fixed plates are fixedly connected to a fixed frame on one side close to each other, the inner wall of the fixed frame is provided with a symmetrical first slide groove, the interior of the two first slide grooves is slidably connected to a symmetrical slide plate, the upper surfaces of the two slide plates are fixedly connected to a support frame, the upper surfaces of the two support frames are provided with a steel box beam body, the front and rear surfaces of the fixed frame are provided with a second slide groove, the interior of the two second slide grooves are slidably connected to an angle plate, and the side of the two angle plates close to each other is provided with a positioning screw hole. In the above technical scheme, the steel box beam can only be adjusted in translation in two directions perpendicular to each other. When there is an angle deviation between the position of the steel box beam and the preset position, the steel box beam cannot be rotated due to its heavy weight.

[0004] Therefore, it is necessary to propose a traction and deviation correction mechanism for splicing steel box girders to solve the problems existing in the prior art. Utility Model Content

[0005] A series of simplified concepts are introduced in the utility model content section, which will be further described in detail in the detailed implementation section. The utility model content section of the utility model does not mean to attempt to define the key features and essential technical features of the technical solution claimed for protection, nor does it mean to attempt to determine the scope of protection of the technical solution claimed for protection.

[0006] In order to solve the above problems, the utility model provides a traction and correction mechanism for splicing steel box girders, including a base, an arc-shaped slideway is symmetrically arranged on the upper end surface of the base, an arc-shaped groove is opened on the upper end surface of the arc-shaped slideway, a rotating plate rotatably connected to the base is arranged above the base, an arc-shaped slider is fixedly arranged at a position on the lower end surface of the rotating plate corresponding to the arc-shaped groove, the shape of the arc-shaped slider is adapted to the arc-shaped groove, the arc-shaped slider is slidably connected to the arc-shaped groove, and a translation component is slidably arranged on the upper end surface of the rotating plate.

[0007] Preferably, a hydraulic cylinder is rotatably arranged on the outer side of the arc-shaped slideway on the upper end surface of the base, and a piston rod of the hydraulic cylinder is rotatably connected to the rotating plate.

[0008] Preferably, a stepped shaft is fixedly arranged on the outer side of the arc-shaped slideway on the upper end surface of the base, a first connecting ear is rotatably arranged on the stepped shaft, the first connecting ear is fixedly connected to an end of the cylinder body of the hydraulic cylinder away from the normal piston rod, a vertical shaft is fixedly arranged on the piston rod of the hydraulic cylinder, a second connecting ear is fixedly arranged on the left end surface of the rotating plate at a position opposite to the vertical shaft, and the second connecting ear is rotatably connected to the vertical shaft.

[0009] Preferably, a first roller is rotatably arranged in the arc groove, the rotation axis of the first roller passes through the center line of the arc of the arc slideway, and the lower end surface of the arc slide block is rollingly connected to the circumferential surface of the first roller.

[0010] Preferably, a roller shaft is fixedly arranged in the arc groove, the first roller is rotatably arranged on the roller shaft, and a bearing is arranged between the first roller and the roller shaft.

[0011] Preferably, the bearing is a needle bearing.

[0012] Preferably, the translation assembly includes a lower plate and an upper plate, the lower plate is slidably arranged on the top surface of the rotating plate, the upper plate is movably arranged on the top surface of the lower plate, and the sliding directions of the upper plate and the lower plate are perpendicular.

[0013] Preferably, two first slideways are provided on the top surface of the rotating plate in parallel along the length direction, and a first slider is provided at a position of the lower end surface of the lower plate corresponding to the first slideway, and the first slider is slidably provided in the first slideway;

[0014] The top surface of the lower plate is provided with a second slideway perpendicular to the direction of the first slideway, the second slideway is fixedly arranged at a position corresponding to the lower end surface of the upper plate and the second slideway, and the second slideway is slidably arranged in the second slideway.

[0015] Preferably, a screw rod is rotatably arranged on the front side surface of the rotating plate, a nut is fixedly arranged on the front end surface of the lower plate, and the nut is threadedly connected to the screw rod.

[0016] Preferably, a driving motor is arranged on the front side of the rotating plate at a distance from the screw rod, a power output shaft of the driving motor is fixedly connected to the screw rod, and the power output shaft of the driving motor is arranged coaxially with the screw rod.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] The traction and deviation correction mechanism for splicing steel box girders described in the utility model has a rotating plate rotatably arranged on a base, an arc groove fixedly arranged on the base, and an arc slider arranged on the rotating plate, so that the rotating plate and the base can rotate relative to each other. When there is an angular deviation between the position of the steel box girder and a preset position, the rotating plate is rotated to adjust the angle of the steel box girder, and a translation component is used to adjust the mutually perpendicular position deviation of the steel box girder in the horizontal plane, so that the steel box girder can be quickly aligned and the splicing efficiency of the steel box girder is improved.

[0019] The traction and correction mechanism for splicing steel box girders described in the present invention, and other advantages, objectives and features of the present invention will be partially reflected through the following description, and will also be partially understood by technicians in this field through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 It is a structural schematic diagram of the traction and deviation correction mechanism for splicing steel box beams disclosed in the utility model;

[0022] Figure 2 It is a schematic diagram of the structure of the bottom plate disclosed in the utility model from a top view;

[0023] Figure 3 It is a structural schematic diagram of the hydraulic cylinder disclosed in the utility model from the left side;

[0024] Figure 4 It is a schematic diagram of the structure of the hydraulic cylinder disclosed in the utility model from a top view;

[0025] Figure 5 It is a schematic structural diagram of a cross-section of the first roller disclosed in the utility model. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments so that those skilled in the art can implement the invention with reference to the description.

[0027] It should be understood that terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0028] like Figure 1-5As shown, a traction and correction mechanism for splicing steel box girders includes a base 1, an arc-shaped slideway 2 is symmetrically arranged on the upper end surface of the base 1, an arc-shaped groove 3 is opened on the upper end surface of the arc-shaped slideway 2, a rotating plate 4 rotatably connected to the base 1 is arranged above the base 1, an arc-shaped slider 5 is fixedly arranged at a position corresponding to the arc-shaped groove 3 on the lower end surface of the rotating plate 4, the shape of the arc-shaped slider 5 is adapted to the arc-shaped groove 3, the arc-shaped slider 5 is slidably connected to the arc-shaped groove 3, and a translation component is slidably arranged on the upper end surface of the rotating plate 4.

[0029] A hydraulic cylinder 6 is rotatably arranged on the outer side of the arc-shaped slideway 2 on the upper end surface of the base 1 , and a piston rod of the hydraulic cylinder 6 is rotatably connected to the rotating plate 4 .

[0030] A stepped shaft 7 is fixedly arranged on the outer side of the arc-shaped slideway 2 on the upper end surface of the base 1, and a first connecting ear 8 is rotatably arranged on the stepped shaft 7. The first connecting ear 8 is sleeved on the thin shaft of the stepped shaft 7, and the first connecting ear 8 is fixedly connected to the end of the cylinder body of the hydraulic cylinder 6 away from the normal piston rod. A vertical shaft 9 is fixedly arranged on the piston rod of the hydraulic cylinder 6, and a second connecting ear 10 is fixedly arranged on the left end surface of the rotating plate 4 at a position opposite to the vertical shaft 9, and the second connecting ear 10 is rotatably connected to the vertical shaft 9.

[0031] A first roller 11 is rotatably disposed in the arc groove 3 , the rotation axis of the first roller 11 passes through the center line of the arc of the arc slideway 2 , and the lower end surface of the arc slider 5 is rollingly connected to the circumferential surface of the first roller 11 .

[0032] A roller shaft 12 is fixedly disposed in the arc groove 3 , the first roller 11 is rotatably disposed on the roller shaft 12 , and a bearing 13 is disposed between the first roller 11 and the roller shaft 12 .

[0033] The bearing 13 is a needle bearing.

[0034] The working principle of the above technical solution is as follows: before installing the steel box girder 100, fix the base 1 on a temporary bracket and adjust the height of the base so that the steel box girder 100 reaches a preset elevation when it falls on the translation assembly, and then hoist the steel box girder 100 onto the translation assembly. Use detection equipment to detect the angular deviation of the steel box girder 100 from the preset position. According to the detected angular deviation, extend or retract the piston rod of the hydraulic cylinder 6 by a corresponding dimension to correct the angular deviation of the steel box girder. The length of the arc slider 5 is consistent with the length of the arc groove 3. The arc slider 5 is installed to the inner bottom surface of the arc groove 3 and contacts with the first roller 11. The arc-shaped side wall of the arc slider 5 contacts with the side wall of the arc groove 3 to play a guiding role. The bottom surface of the arc slider 5 is pressed on the first roller to reduce the friction when the rotating plate 4 rotates.

[0035] Beneficial effects of the above technical solution:

[0036] The traction and deviation correction mechanism for splicing steel box girders described in the utility model has a rotating plate rotatably arranged on a base, an arc groove fixedly arranged on the base, and an arc slider arranged on the rotating plate, so that the rotating plate and the base can rotate relative to each other. When there is an angular deviation between the position of the steel box girder and a preset position, the rotating plate is rotated to adjust the angle of the steel box girder, and a translation component is used to adjust the mutually perpendicular position deviation of the steel box girder in the horizontal plane, so that the steel box girder can be quickly aligned and the splicing efficiency of the steel box girder is improved.

[0037] In one embodiment, the translation assembly includes a lower plate 14 and an upper plate 15 , wherein the lower plate 14 is slidably disposed on the top surface of the rotating plate 4 , and the upper plate 15 is slidably disposed on the top surface of the lower plate 14 , and the sliding directions of the upper plate 15 and the lower plate 14 are perpendicular.

[0038] Two first slideways 16 are provided on the top surface of the rotating plate 4 in parallel along the length direction, and a first slider 17 is provided at a position corresponding to the first slideway 16 on the lower end surface of the lower plate 14, and the first slider 17 is slidably provided in the first slideway 16;

[0039] A second slideway 18 perpendicular to the direction of the first slideway 17 is formed on the top surface of the lower plate 14 , and a second slideway 19 is fixedly disposed at a position corresponding to the lower end surface of the upper plate 15 and the second slideway 18 , and the second slideway 19 is slidably disposed in the second slideway 18 .

[0040] A screw rod 20 is rotatably disposed on the front side of the rotating plate 4 , and a nut 21 is fixedly disposed on the front end surface of the lower plate 14 , and the nut 21 is threadedly connected to the screw rod 20 .

[0041] A driving motor is arranged on the front side surface of the rotating plate 4 at a distance from the screw rod 20 , and a power output shaft of the driving motor is fixedly connected to the screw rod, and the power output shaft of the driving motor is arranged coaxially with the screw rod.

[0042] The working principle of the above technical solution is as follows: the lower plate of the translation assembly and the rotating plate 4 are slidably arranged in the length direction of the rotating plate 4, and a second roller 22 is arranged in the first slideway 16 on the rotating plate 4. The arrangement of the second roller can be consistent with the arrangement of the first roller. When the position of the lower plate 14 needs to be moved, the driving motor is turned on to drive the screw 20 to rotate, and the rotation of the screw drives the lower plate 14 to move horizontally through the nut 21. The driving motor is a reversible motor that can rotate forward and reverse, and can adjust the reciprocating motion of the lower plate 14. The driving motor can select a motor with suitable power and size from the reversible motors of general models. The first slider 17 of the upper plate is installed in the first slideway 16. The side of the first slider 17 contacts the side of the first slideway 16 to play a guiding role. The bottom surface of the first slider 17 is pressed on the second roller to reduce friction during movement.

[0043] The moving direction of the upper plate 15 is perpendicular to the moving direction of the lower plate 14. The connection method between the upper plate 15 and the lower plate 14 can be set to the same structure as the connection method between the lower plate 14 and the rotating plate 4. The power for the translation between the upper plate 15 and the lower plate 14 is also set to the same power for the movement between the lower plate 14 and the rotating plate 4, which will not be repeated here.

[0044] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0045] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A traction and correction mechanism for splicing steel box beams, characterized in that: The invention comprises a base (1), an arc-shaped slideway (2) is symmetrically arranged on the upper end surface of the base (1), an arc-shaped groove (3) is provided on the upper end surface of the arc-shaped slideway (2), a rotating plate (4) rotatably connected to the base (1) is arranged above the base (1), an arc-shaped slider (5) is fixedly arranged at a position corresponding to the arc-shaped groove (3) on the lower end surface of the rotating plate (4), the shape of the arc-shaped slider (5) is adapted to the arc-shaped groove (3), the arc-shaped slider (5) is slidably connected to the arc-shaped groove (3), and a translation component is slidably arranged on the upper end surface of the rotating plate (4).

2. The traction and deviation correction mechanism for splicing steel box beams according to claim 1 is characterized in that: A hydraulic cylinder (6) is rotatably arranged on the outer side of the arc-shaped slideway (2) on the upper end surface of the base (1), and a piston rod of the hydraulic cylinder (6) is rotatably connected to the rotating plate (4).

3. The traction and deviation correction mechanism for splicing steel box beams according to claim 2 is characterized in that: A stepped shaft (7) is fixedly arranged on the outer side of the arc-shaped slideway (2) on the upper end surface of the base (1); a first connecting ear (8) is rotatably arranged on the stepped shaft (7); the first connecting ear (8) is fixedly connected to an end of a cylinder body of a hydraulic cylinder (6) away from a normal piston rod; a vertical shaft (9) is fixedly arranged on the piston rod of the hydraulic cylinder (6); a second connecting ear (10) is fixedly arranged on the left end surface of the rotating plate (4) at a position opposite to the vertical shaft (9); and the second connecting ear (10) is rotatably connected to the vertical shaft (9).

4. The traction and deviation correction mechanism for splicing steel box beams according to claim 3 is characterized in that: A first roller (11) is rotatably arranged in the arc groove (3), the rotation axis of the first roller (11) passes through the center line of the arc of the arc slideway (2), and the lower end surface of the arc slide block (5) is rollingly connected to the circumferential surface of the first roller (11).

5. The traction and deviation correction mechanism for splicing steel box beams according to claim 4 is characterized in that: A roller shaft (12) is fixedly arranged in the arc groove (3), the first roller (11) is rotatably arranged on the roller shaft (12), and a bearing (13) is arranged between the first roller (11) and the roller shaft (12).

6. The traction and deviation correction mechanism for splicing steel box beams according to claim 5 is characterized in that: The bearing (13) is a needle roller bearing.

7. The traction and deviation correction mechanism for splicing steel box beams according to claim 1 is characterized in that: The translation assembly comprises a lower plate (14) and an upper plate (15), wherein the lower plate (14) is slidably arranged on the top surface of the rotating plate (4), and the upper plate (15) is slidably arranged on the top surface of the lower plate (14), and the sliding directions of the upper plate (15) and the lower plate (14) are perpendicular.

8. The traction and deviation correction mechanism for splicing steel box beams according to claim 7 is characterized in that: Two first slideways (16) are arranged on the top surface of the rotating plate (4) and are parallel to each other in the length direction; a first sliding block (17) is arranged at a position on the lower end surface of the lower plate (14) corresponding to the first slideway (16); and the first sliding block (17) is slidably arranged in the first slideway (16); The top surface of the lower plate (14) is provided with a second slideway (18) perpendicular to the direction of the first slideway (17); the lower end surface of the upper plate (15) is fixedly provided with a second slideway (19) at a position corresponding to the second slideway (18); the second slideway (19) is slidably provided in the second slideway (18).

9. The traction and deviation correction mechanism for splicing steel box beams according to claim 8, characterized in that: A screw rod (20) is rotatably arranged on the front side of the rotating plate (4), and a nut (21) is fixedly arranged on the front end surface of the lower plate (14), wherein the nut (21) is threadedly connected to the screw rod (20).

10. The traction and deviation correction mechanism for splicing steel box beams according to claim 9, characterized in that: A driving motor is arranged on the front side of the rotating plate (4) at a distance from the screw rod (20), and a power output shaft of the driving motor is fixedly connected to the screw rod, and the power output shaft of the driving motor is arranged coaxially with the screw rod.

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