A transfer method and a simple turntable applicable to large-section steel box girders

Abstract

The present invention discloses a transfer method and a simple turntable applicable to large-segment steel box girders, relating to the technical field of steel box girder transfer. The simple turntable in the present invention comprises a support assembly, a rotating assembly and an anti-rollover assembly; the rotating assembly is coaxially arranged with the support assembly, the rotating assembly is arranged above the support assembly and the two are closely attached; the anti-rollover assembly is arranged between the support assembly and the rotating assembly, and the anti-rollover assembly is connected to the rotating assembly through fasteners; relative rotation occurs between the rotating assembly and the support assembly. Through the specific designs of the support assembly, the rotating assembly and the anti-rollover assembly, the simple turntable in the present invention can carry a large tonnage and drive the large-segment steel box girder to rotate synchronously, is simple in manufacturing and processing, low in cost, can be smoothly and conveniently used to assist in loading and transporting after being manufactured, and greatly reduces safety risks, and is particularly applicable to the transfer operation of large members manufactured by bridge factories, thereby improving the transfer efficiency of large-segment steel box girders.

Description

Technical Field

[0001] The present invention belongs to the technical field of steel box girder transportation, and particularly relates to a transportation method and a simple turntable applicable to large-section steel box girders. Background Technique

[0002] With the development of bridge construction, steel structure bridges are gradually developing towards large-section fully welded structures. They are manufactured into large sections in professional factories and then directly shipped to the bridge site for hoisting to minimize on-site construction workload as much as possible. For large welded structural forms, during the manufacturing and processing process, operations such as transporting, flipping, and rotating in place of large-section steel girders are required. Especially for welded structures with a relatively long length in the length direction, they are often restricted by aspects such as space, hoisting capacity, and site, which brings great inconvenience to transportation and shipping.

[0003] When transporting and hoisting large-section box girders in the workshop, double traveling cranes or double cranes are often used for hoisting, resulting in a perpendicular angle between the length direction of the steel box girder and the transport flatbed truck. When loading, only one end can be loaded onto the vehicle and then the other end, which brings great difficulties to loading and there are also safety risks during the hoisting process. The present invention proposes a rotating device that can carry a large tonnage and can rotate, which is simple in manufacturing and processing, low in cost, and can smoothly and conveniently assist in loading and transportation after manufacturing, and greatly reduces safety risks, especially applicable to the transportation operation of large members manufactured in bridge factories. Summary of the Invention

[0004] The purpose of the present invention is to provide a transportation method and a simple turntable applicable to large-section steel box girders. Through the specific design of the support assembly, rotation assembly, and anti-rollover assembly, it solves the problems that when transporting and hoisting large-section box girders in the workshop, double traveling cranes or double cranes are often used for hoisting, resulting in a perpendicular angle between the length direction of the steel box girder and the transport flatbed truck, bringing great difficulties to loading and there being safety risks during the hoisting process.

[0005] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is a transportation method applicable to large-section steel box girders, including the following steps:

[0007] SS01 Place one end of the large-section steel box girder on the surface of the rotating ring body, use the entire simple turntable as a fulcrum, and use a crane or other external force to fix the other end of the large-section steel box girder, taking this stress point as another fulcrum;

[0008] SS02 uses the distance between two fulcrums as the transfer radius, drives the large-section steel box girder to rotate under the action of a crane or other external forces, and under the meshing of the anti-rollover ring and the anti-skid ring, the rotating ring body drives the rotating slideway ring to rotate synchronously on the support base, realizing the transfer of the large-section steel box girder;

[0009] SS03 places the middle part of the large-section steel box girder on the surface of the rotating ring body, uses the entire simple turntable as the central fulcrum, and uses a crane or other external forces to fix the other end of the large-section steel box girder, realizing the rotation and turning of the large-section steel box girder.

[0010] Furthermore, a simple turntable applicable to large-section steel box girders includes a support assembly, a rotating assembly, and an anti-rollover assembly; the rotating assembly is coaxially arranged with the support assembly, the rotating assembly is arranged above the support assembly and the two are closely attached; the anti-rollover assembly is arranged between the support assembly and the rotating assembly, and the anti-rollover assembly is connected to the rotating assembly through fasteners; relative rotation occurs between the rotating assembly and the support assembly.

[0011] Furthermore, the support assembly includes a support base and multiple lifting lugs, and the lifting lugs are fixedly connected to the upper surface of the support base.

[0012] Furthermore, the support assembly further includes a support slideway ring and a rotating slideway ring, and the rotating slideway ring and the support slideway ring are coaxially arranged on the top of the support base; the support slideway ring is coaxially and fixedly connected to the top of the support base, and the rotating slideway ring is arranged above the support slideway ring and the two are rotatably connected.

[0013] Furthermore, the support assembly further includes an anti-skid ring and a friction pair ring, and both the anti-skid ring and the friction pair ring are coaxially arranged with the rotating slideway ring; the anti-skid ring is fixedly connected to the outer surface of the rotating slideway ring, and the friction pair ring is arranged on the top of the rotating slideway ring and the anti-skid ring, and both the rotating slideway ring and the anti-skid ring are fixedly connected to the friction pair ring.

[0014] Furthermore, the rotating assembly includes a rotating ring body and multiple groups of anti-skid assemblies; the rotating ring body is coaxially attached to the top of the friction pair ring; the anti-skid assembly is composed of a first guiding ring and a second guiding ring; both the first guiding ring and the second guiding ring are fixedly connected to the bottom of the rotating ring body, and the first guiding ring is arranged outside the second guiding ring; the friction pair ring is arranged between the first guiding ring and the second guiding ring.

[0015] Furthermore, the anti-rollover assembly includes an anti-rollover ring and multiple screw holes, and the screw holes are arranged circumferentially on the surface of the anti-rollover ring; the first guiding ring is connected to the screw holes on the anti-rollover ring through fasteners, and the anti-rollover ring meshes with the anti-skid ring.

[0016] The present invention has the following beneficial effects:

[0017] Through the specific design of the support component, rotation component and anti-overturning component, the simple turntable of the present invention can carry a large tonnage and drive the large segment steel box girder to rotate synchronously. The manufacturing and processing are simple, the cost is low, and it can be smoothly and conveniently assisted in loading and transporting after manufacturing, and greatly reduces the safety risk. It is especially suitable for the transfer operation of large components in bridge factories, thereby improving the transfer efficiency of large segment steel box girders.

[0018] Of course, it is not necessary for any product implementing the present invention to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is a schematic structural diagram of a simple turntable applicable to the transfer of large segment steel box girders.

[0021] Figure 2 It is Figure 1 The enlarged view of the partial structure at A in

[0022] Figure 3 It is a schematic structural diagram of the support component.

[0023] Figure 4 It is a schematic structural diagram of the rotation component.

[0024] Figure 5 It is a schematic structural diagram of the anti-overturning component.

[0025] In the drawings, the list of components represented by each reference numeral is as follows:

[0026] 1 - Support component, 101 - Support base, 102 - Lifting lug, 103 - Support slideway ring, 104 - Rotation slideway ring, 105 - Anti-slip ring, 106 - Friction pair ring, 2 - Rotation component, 201 - Rotation ring body, 202 - First guide ring, 203 - Second guide ring, 3 - Anti-overturning component, 301 - Anti-overturning ring, 302 - Screw hole, 4 - Fastener. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0028] Embodiment 1 A transfer method applicable to large-section steel box girders

[0029] A transfer method applicable to large-section steel box girders includes the following steps:

[0030] SS01 Place one end of the large-section steel box girder on the surface of the rotating ring body 201, use the entire simple turntable as a fulcrum, and use a crane or other external force to fix the other end of the large-section steel box girder, and use this force point as another fulcrum;

[0031] SS02 Use the distance between the two fulcrums as the transfer radius, drive the large-section steel box girder to rotate under the action of a crane or other external force. Under the meshing of the anti-rollover ring 301 and the anti-skid ring 105, the rotating ring body 201 drives the rotating slideway ring 104 to rotate synchronously on the support base 101 to realize the transfer of the large-section steel box girder;

[0032] SS03 Place the middle part of the large-section steel box girder on the surface of the rotating ring body 201, use the entire simple turntable as the central fulcrum, and use a crane or other external force to fix the other end of the large-section steel box girder to realize the rotation and turning of the large-section steel box girder.

[0033] Embodiment 2 A simple turntable applicable to the transfer of large-section steel box girders

[0034] Please refer to Figures 1-5 , the present invention is a simple turntable applicable to the transfer of large-section steel box girders, including a support assembly 1, a rotating assembly 2 and an anti-rollover assembly 3;

[0035] The rotating assembly 2 is coaxially arranged with the support assembly 1, and the rotating assembly 2 is arranged above the support assembly 1 and the two are in close contact; the anti-rollover assembly 3 is arranged between the support assembly 1 and the rotating assembly 2, and the anti-rollover assembly 3 is connected to the rotating assembly 2 through a fastener 4; relative rotation occurs between the rotating assembly 2 and the support assembly 1.

[0036] In this embodiment, the support assembly 1 includes a support base 101, and a plurality of lifting lugs 102 are fixedly connected to the upper surface of the support base 101;

[0037] The support assembly 1 further includes a support slideway ring 103 and a rotating slideway ring 104. The rotating slideway ring 104 and the support slideway ring 103 are coaxially arranged on the top of the support base 101. The support slideway ring 103 is coaxially and fixedly connected to the top of the support base 101. The rotating slideway ring 104 is arranged above the support slideway ring 103 and the two are rotatably connected.

[0038] In this embodiment, the support assembly 1 further includes an anti-side-slip ring 105 and a friction pair ring 106. The anti-side-slip ring 105 and the friction pair ring 106 are both coaxially arranged with the rotating slideway ring 104. The anti-side-slip ring 105 is fixedly connected to the outer surface of the rotating slideway ring 104. The friction pair ring 106 is arranged on the tops of the rotating slideway ring 104 and the anti-side-slip ring 105, and both the rotating slideway ring 104 and the anti-side-slip ring 105 are fixedly connected to the friction pair ring 106.

[0039] In this embodiment, the rotating assembly 2 includes a rotating ring body 201 and multiple groups of anti-side-slip assemblies. The rotating ring body 201 is coaxially attached to the top of the friction pair ring 106. The anti-side-slip assembly is composed of a first guiding ring 202 and a second guiding ring 203. Both the first guiding ring 202 and the second guiding ring 203 are fixedly connected to the bottom of the rotating ring body 201, and the first guiding ring 202 is arranged outside the second guiding ring 203. The friction pair ring 106 is arranged between the first guiding ring 202 and the second guiding ring 203.

[0040] In this embodiment, the anti-overturning assembly 3 includes an anti-overturning ring 301. A plurality of screw holes 302 are arranged on the surface of the anti-overturning ring 301. The first guiding ring 202 and the screw holes 302 on the anti-overturning ring 301 are connected by fasteners 4, and the anti-overturning ring 301 is meshed with the anti-side-slip ring 105.

[0041] In the description of this specification, the descriptions with reference to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0042] The above-disclosed preferred embodiments of the present invention are only used to help illustrate the present invention. The preferred embodiments do not elaborate all the details, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A transfer method applicable to large-section steel box girders, characterized in that: The method includes the following steps: SS01 Place one end of the large-section steel box girder on the surface of the rotating ring body (201). Using the entire simple turntable as a fulcrum, fix the other end of the large-section steel box girder with a crane or other external force, and use this force point as another fulcrum. SS02 Using the distance between the two fulcrums as the transfer radius, drive the large-section steel box girder to rotate under the action of a crane or other external force. Under the meshing of the anti-overturning ring (301) and the anti-slip ring (105), the rotating ring body (201) drives the rotating slideway ring (104) to rotate synchronously on the support base (101), realizing the transfer of the large-section steel box girder. SS03 Place the middle part of the large-section steel box girder on the surface of the rotating ring body (201). Using the entire simple turntable as the central fulcrum, fix the other end of the large-section steel box girder with a crane or other external force to realize the rotation and turning of the large-section steel box girder. The simple turntable based on the above transfer method applicable to large-section steel box girders includes a support assembly (1), a rotating assembly (2), and an anti-overturning assembly (3). The rotating assembly (2) is coaxially arranged with the support assembly (1). The rotating assembly (2) is arranged above the support assembly (1) and the two are closely attached. The anti-overturning assembly (3) is arranged between the support assembly (1) and the rotating assembly (2). The anti-overturning assembly (3) is connected to the rotating assembly (2) through a fastener (4). Relative rotation occurs between the rotating assembly (2) and the support assembly (1). The support assembly (1) includes an anti-slip ring (105) and a friction pair ring (106). The anti-slip ring (105) and the friction pair ring (106) are both coaxially arranged with the rotating slideway ring (104). The anti-slip ring (105) is fixedly connected to the outer surface of the rotating slideway ring (104). The friction pair ring (106) is arranged on the top of the rotating slideway ring (104) and the anti-slip ring (105), and both the rotating slideway ring (104) and the anti-slip ring (105) are fixedly connected to the friction pair ring (106). The rotating assembly (2) includes a rotating ring body (201) and multiple anti-slip assemblies. The rotating ring body (201) is coaxially attached to the top of the friction pair ring (106). The anti-slip assembly is composed of a first guide ring (202) and a second guide ring (203). Both the first guide ring (202) and the second guide ring (203) are fixedly connected to the bottom of the rotating ring body (201), and the first guide ring (202) is arranged outside the second guide ring (203). The friction pair ring (106) is arranged between the first guide ring (202) and the second guide ring (203). The anti-overturning assembly (3) includes an anti-overturning ring (301) and multiple screw holes (302). The screw holes (302) are circumferentially arranged on the surface of the anti-overturning ring (301). The first guide ring (202) is connected to the screw holes (302) on the anti-overturning ring (301) through a fastener (4), and the anti-overturning ring (301) meshes with the anti-slip ring (105).

2. The transfer method applicable to large segment steel box girders according to claim 1, characterized in that, The support assembly (1) further includes A support base (101), A plurality of lifting lugs (102), which are fixedly connected to the upper surface of the support base (101).

3. The transfer method applicable to large segment steel box girders according to claim 2, characterized in that, The support assembly (1) further includes,[[]] A support slideway ring (103), A rotating slideway ring (104), which is coaxially arranged with the support slideway ring (103) at the top of the support base (101); The support slideway ring (103) is coaxially and fixedly connected to the top of the support base (101), and the rotating slideway ring (104) is arranged above the support slideway ring (103) and the two are rotatably connected.

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