Integral turning device for large asymmetric steel truss girder

Abstract

The utility model relates to a large-scale asymmetric steel truss girder integral turnover device which comprises a supporting mechanism, a turnover mechanism and a turnover mechanism, the supporting mechanism comprises a first supporting piece and a second supporting piece, and the first supporting piece and the second supporting piece are connected to form an inner containing cavity; the fixing mechanism is rotationally connected with the connecting part of the first supporting piece and the second supporting piece; the self-balancing mechanism comprises a first self-balancing piece and a second self-balancing piece; the first self-balancing piece is fixedly arranged on the outer side of the first supporting piece, and when the first supporting piece rotates to the horizontal direction, the first self-balancing piece supports the outer side of the first supporting piece. The second self-balancing piece is fixedly arranged on the outer side of the second supporting piece, and the end, away from the second supporting piece, of the second self-balancing piece is an inclined face and used for supporting the outer side of the second supporting piece. By means of the overall turning-over device for the large asymmetric steel truss girder, the large asymmetric steel truss girder can be turned over to the vertical direction efficiently and safely.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of steel truss beam hoisting, and particularly relates to a large asymmetric steel truss beam whole turning-over device. BACKGROUND

[0002] The large asymmetric steel truss beam is a kind of building component with unique structure and important application value, which can be used as a support structure of a main beam or a bridge deck. This structure can adapt to different bridge spans and terrain conditions, and improve the bearing capacity and durability of the bridge. However, the large asymmetric steel truss beam has the characteristics of large volume, large weight and irregularity, and it is difficult to hoist and transport.

[0003] In the prior art, a gantry crane or a truck crane is usually used to directly hoist the large asymmetric steel truss beam, and the hoisting speed, moving speed and angle are controlled to avoid the shaking or tilting of the steel truss beam during hoisting. However, in order to prevent the tilting and shaking of the steel truss beam, the crane needs to be controlled slowly and accurately, which leads to low work efficiency, and the precise control of the crane is prone to errors, which causes the steel truss beam to shake and tilt, and increases the construction risk.

[0004] Therefore, it is necessary to provide a new technical scheme to improve one or more problems in the above-mentioned scheme. CONTENT OF THE INVENTION

[0005] The purpose of the present application is to provide a large asymmetric steel truss beam whole turning-over device which can efficiently and safely turn over the large asymmetric steel truss beam to the vertical direction.

[0006] To achieve the purpose of the present application, the present application provides the following technical scheme:

[0007] The present application provides a large asymmetric steel truss beam whole turning-over device, which comprises:

[0008] The support mechanism comprises a first support member and a second support member, and the first support member and the second support member are connected to form a containing cavity;

[0009] The fixing mechanism is rotationally connected with the connecting part of the first support member and the second support member;

[0010] The self-balancing mechanism comprises a first self-balancing member and a second self-balancing member; the first self-balancing member is fixedly arranged outside the first support member and supports the outside of the first support member when the first support member is rotated to the horizontal direction; and the second self-balancing member is fixedly arranged outside the second support member, and the end away from the second support member is a slope for supporting the outside of the second support member.

[0011] In a possible implementation, the support mechanism is Y-shaped, one end of the first support member is connected perpendicularly to one end of the second support member, the connecting end of the first support member and the second support member has a protruding portion, and the fixing mechanism is rotationally connected to the protruding portion.

[0012] In a possible implementation, the fixing mechanism comprises a base and a rotating seat, the rotating seat is fixedly arranged on the base, and the connecting portion of the first support member and the second support member is rotationally connected to the rotating seat through a rotating shaft.

[0013] In a possible implementation, the fixing mechanism further comprises a reinforcing plate, the reinforcing plate is fixedly arranged on the base, and the rotating seat is inserted into the reinforcing plate.

[0014] In a possible implementation, one end of the first support member and the second support member away from the protruding portion has an ear.

[0015] In a possible implementation, the inner side of the first support member and the second support member has a gasket.

[0016] In a possible implementation, the gasket is a rubber gasket.

[0017] In a possible implementation, the inclination angle of the inclined surface of the second self-balancing member away from one end of the second support member is the complementary angle of the maximum rotation angle of the support mechanism.

[0018] In a possible implementation, the connecting portion of the first support member and the second support member has a first rotating shaft hole, the rotating seat has a second rotating shaft hole, the hole diameter deviation of the first rotating shaft hole and the second rotating shaft hole is less than or equal to 0.5 mm, and the concentricity deviation is less than or equal to 0.5 mm.

[0019] In a possible implementation, the large asymmetric steel truss girder overall turning device further comprises a temporary support member for supporting one end of the steel truss girder away from the support mechanism.

[0020] The technical scheme provided in the application can have the following beneficial effects:

[0021] The large asymmetric steel truss girder overall turning device provided in the application is rotationally connected to the base and the support member through a hinge shaft, takes the lower chord side of the truss girder as a rotation fulcrum, reduces the turning moment and difficulty of the large asymmetric steel truss girder, eliminates the critical shaking of the large asymmetric steel truss girder during turning through the self-balancing member, improves the construction efficiency, and reduces the construction risk. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1Fig. 1 shows a structural schematic diagram of a large asymmetric steel truss girder overall turning device in the example embodiment of the present application;

[0023] Figure 2 Fig. 1 shows a structural schematic diagram of a large asymmetric steel truss girder overall turning device in the example embodiment of the present application;

[0024] Figure 3 Fig. 1 shows a structural schematic diagram of a large asymmetric steel truss girder overall turning device in the example embodiment of the present application;

[0025] Figure 4 Fig. 1 shows a structural schematic diagram of a large asymmetric steel truss girder overall turning device in the example embodiment of the present application;

[0026] Reference signs:

[0027] 100, support mechanism, 110, first support piece, 120, second support piece, 130, gasket, 140, lifting lug;

[0028] 200, fixing mechanism, 210, base, 220, rotating seat, 230, reinforcing plate, 240, rotating shaft;

[0029] 300, first self-balancing piece; 400, second self-balancing piece; 500, steel truss girder; 600, temporary support piece. DETAILED DESCRIPTION

[0030] Example embodiments now will be described more fully hereinafter with reference to the accompanying drawings. Example embodiments, may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the example embodiments to those skilled in the art. The described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0031] In addition, the drawings are only schematic and are non-limiting. Like reference numerals designate corresponding parts throughout the several views. Specific embodiments are described herein with reference to the accompanying drawings, which are not intended to be limiting. The terms "coupled" and "connected," as used herein, mean the joining of two members directly or indirectly to one another. As used herein, unless otherwise specified, "perpendicular" shall mean 90 degrees, "parallel" shall mean 0 degrees, and "antiparallel" shall mean 180 degrees. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0032] In the example embodiments, a large asymmetric steel truss girder overall turning device is provided. Referring to Fig. 1, the large asymmetric steel truss girder overall turning device comprises a support mechanism 100, a fixing mechanism 200, a first self-balancing piece 300, a second self-balancing piece 400, a steel truss girder 500, and a temporary support piece 600. Figures 1 to 4As shown in the figure, the device for turning over a large asymmetric steel truss girder includes a supporting mechanism 100, a fixing mechanism 200, and a self-balancing mechanism. The supporting mechanism 100 includes a first supporting piece 110 and a second supporting piece 120, which are connected to form a containing cavity. The fixing mechanism 200 is rotationally connected to the connecting part of the first supporting piece 110 and the second supporting piece 120. The self-balancing mechanism includes a first self-balancing piece 300 and a second self-balancing piece 400. The first self-balancing piece 300 is fixedly arranged outside the first supporting piece 110 and supports the outside of the first supporting piece 110 when the first supporting piece 110 is rotated to the horizontal direction. The second self-balancing piece 400 is fixedly arranged outside the second supporting piece 120, and the end away from the second supporting piece 120 is a bevel for supporting the outside of the second supporting piece 120.

[0033] It should be noted that the large asymmetric steel truss girder overall turning over device adopts high-precision equipment for cutting, assembly welding, and processing, and finally assembles each part into a whole. By using the hinge shaft rotation principle and taking the lower chord side of the truss girder as the rotation fulcrum, the turning over torque and the turning over difficulty of the steel member are reduced as much as possible, and the construction efficiency is improved and the safety risk is reduced.

[0034] In one embodiment, the supporting mechanism 100 is Y-shaped, one end of the first supporting piece 110 is connected perpendicularly to one end of the second supporting piece 120, the connecting end of the first supporting piece 110 and the second supporting piece 120 has a protruding part, the fixing mechanism 200 is rotationally connected to the protruding part, and the stability of the rotational connection between the supporting mechanism 100 and the fixing mechanism 200 is enhanced by the Y-shaped supporting mechanism 100.

[0035] Optionally, one end of the first supporting piece 110 and the second supporting piece 120 away from the protruding part has an ear 140, and the ear 140 can be used for assisting the turning over operation.

[0036] In one embodiment, the fixing mechanism 200 includes a base 210 and a rotating seat 220. The rotating seat 220 is fixedly arranged on the base 210, and the connecting part of the first supporting piece 110 and the second supporting piece 120 is rotationally connected to the rotating seat 220 through a rotating shaft 240.

[0037] Among them, the rotating seat 220 is two, the inner distance of the two rotating seats 220 is controlled within +2mm, and the outer contour size of the protruding part is controlled within -2mm.

[0038] Further, the fixing mechanism 200 further comprises a reinforcing plate 230, the reinforcing plate 230 is fixedly arranged on the base 210, and the rotating seat 220 is inserted on the reinforcing plate 230.

[0039] The reinforcing plate 230 is three, and the rotating seat 220 and the base 210 are connected stably through the reinforcing plate 230.

[0040] Optionally, the connecting part of the first support 110 and the second support 120 has a first rotating shaft hole, the rotating seat 220 has a second rotating shaft hole, the hole diameter deviation of the first rotating shaft hole and the second rotating shaft hole is less than or equal to 0.5 mm, and the concentricity deviation is less than or equal to 0.5 mm.

[0041] In an embodiment, the inner side of the first support 110 and the second support 120 has a gasket 130.

[0042] Further, the gasket 130 is a rubber gasket.

[0043] It should be noted that the rubber gasket can increase the friction coefficient of the contact surface of the steel truss beam 500 and the support mechanism 100, and the steel truss beam 500 has a large weight, which can form a large friction force to prevent the steel truss beam 500 from falling.

[0044] In an embodiment, the inclination angle of the inclined surface of the second self-balancing part 400 away from one end of the second support 120 is the complementary angle of the maximum rotating angle of the support mechanism 100.

[0045] It should be noted that, as shown in Figure 4 By adjusting the inclination angle of the inclined surface, the maximum rotating angle of the support mechanism 100 can be adjusted, so that when the inclined surface of the second support 120 is completely in contact with the ground, the steel truss beam 500 placed on the support mechanism 100 is in a critical state of turning over.

[0046] In an embodiment, the large asymmetric steel truss beam overall turning device further comprises a temporary support 600 for supporting the end of the steel truss beam 500 away from the support mechanism 100.

[0047] It should be noted that, as shown in Figure 3 The temporary support 600 is arranged at the end of the steel truss beam 500 away from the support mechanism 100, and the top surface of the temporary support 600 and the top surface of the first support 110 are located on the same horizontal plane.

[0048] When the turning-over operation is performed, the lower chord of the large asymmetric steel truss beam is placed in the accommodating cavity of the supporting mechanism 100 in close contact with the first supporting piece 110 and the second supporting piece 120, and the end of the large asymmetric steel truss beam away from the supporting mechanism 100 is supported by the temporary supporting piece 600; the first supporting piece 110 is supported by the first self-balancing piece 300; the large asymmetric steel truss beam is turned over at a uniform speed by the crane; when the turning-over critical point is reached, the second supporting piece 120 is supported by the second self-balancing piece 400, thereby avoiding the turning-over critical shaking of the large asymmetric steel truss beam.

[0049] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0050] In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0051] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0052] In the present application, unless specifically stated and limited otherwise, the "on" or "under" of a first feature with respect to a second feature can include that the first and second features are directly in contact, or that the first and second features are not directly in contact but are in contact through another feature between them. Also, the "on", "above", and "top" of a first feature with respect to a second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. The "under", "below", and "bottom" of a first feature with respect to a second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature is horizontally lower than the second feature.

[0053] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. The illustrative representations of the above terms in the specification are not necessarily directed to the same embodiment or example. Also, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and integrate different embodiments or examples described in the specification.

[0054] Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the present application cover any and all variations of the application that come within the scope of the claims and a concept of the application. It is intended that the specification and examples be considered exemplary only, with the true scope and spirit of the application being indicated by the following claims.

Claims

1. A large asymmetric steel truss girder integral rollover device, characterized by, The utility model relates to a steel truss beam support mechanism, including: Supporting mechanism, including first support and second support, the first support and the second support connection form the cavity in content; Fixing mechanism, with the connecting portion of first support and second support rotation connection; Self-balancing mechanism, including first self-balancing piece and second self-balancing piece;The first self-balancing piece is fixedly arranged on the outside of the first support, and when the first support rotates to the horizontal direction, the outside of the first support is supported;The second self-balancing piece is fixedly arranged on the outside of the second support, and the end away from the second support is inclined, for supporting the outside of the second support.

2. The overall turnover device for large asymmetric steel truss girder according to claim 1, characterized in that, The supporting mechanism is Y type, one end of the first support is connected with one end of the second support vertically, the connecting end of the first support and the second support has protruding part, and the fixing mechanism is rotationally connected with the protruding part.

3. The overall tilting device for large asymmetric steel truss girder according to claim 1, characterized in that, The fixing mechanism includes: base and rotating seat;The rotating seat is fixedly arranged on the base, and the connecting portion of the first support and the second support is rotationally connected with the rotating seat through the rotating shaft.

4. The overall tilting device for large asymmetric steel truss girder according to claim 3, characterized in that, The fixing mechanism further includes: reinforcing plate;The reinforcing plate is fixedly arranged on the base, and the rotating seat is inserted on the reinforcing plate.

5. The overall tilting device for large asymmetric steel truss girder according to claim 2, characterized in that, One end of the first support and the second support away from the protruding part has a lifting lug.

6. The overall tilting device for large asymmetric steel truss girder according to claim 1, characterized in that, The inner side of the first support and the second support has a gasket.

7. The overall tilting device for large asymmetric steel truss girder according to claim 6, characterized in that, The gasket is a rubber gasket.

8. The overall tilting device for large asymmetric steel truss girder according to claim 1, characterized in that, The inclination angle of the inclined surface of the second self-balancing piece away from the second support end is the complementary angle of the maximum rotation angle of the supporting mechanism.

9. The overall tilting device for large asymmetric steel truss girder according to claim 3, characterized in that, The connecting portion of the first support and the second support has a first rotating shaft hole, the rotating seat has a second rotating shaft hole, the hole diameter deviation of the first rotating shaft hole and the second rotating shaft hole is less than or equal to 0.5mm, and the concentricity deviation is less than or equal to 0.5mm.

10. The overall tilting device for large asymmetric steel truss girder according to claim 1, characterized in that, Further including: Temporary support, for supporting the end of steel truss beam away from the supporting mechanism.

Images