Bridge fabrication machine track supporting device suitable for steel beam hoisting

Abstract

The utility model provides a bridge fabrication machine track supporting device suitable for hoisting a steel beam, the number of bolsters is three, and the three bolsters are arranged below a bridge fabrication machine track side by side; two pieces of H-shaped steel are arranged on each of the two sides of the bolster in a front-back mode, the inner ends of the H-shaped steel make contact with the side face of the bolster and are fixedly welded to the side face of the bolster, and a first stiffening steel plate and a third stiffening steel plate are further distributed on the left side and the right side of the H-shaped steel and are both perpendicular to wing plates and waist plates of the H-shaped steel; the distribution appearance of the first stiffening steel plate is in an L shape, part of the first stiffening steel plate protrudes out of a wing plate of the H-shaped steel, the protruding part of the first stiffening steel plate is upwards welded and fixed with a roller support, and the roller is installed on the roller support; the idler wheels are hung on a lower wing plate of the bridge fabrication machine track, and when the bridge fabrication machine track moves, the whole supporting device moves along with the bridge fabrication machine track. The device has the characteristics of synchronous movement, fine adjustment, manpower and material resource saving, easiness in operation and local reinforcement, and is suitable for steel beam hoisting construction.

Description

Technical Field

[0001] The utility model relates to the field of bridge-building machines and steel box beam steel hoisting, and specifically provides a bridge-building machine track support device suitable for steel beam hoisting. Background Art

[0002] The steel box girder structure has the characteristics of light weight, long span, high seismic resistance and short construction time. In bridge engineering, the figure of steel box girder is more and more frequently entering everyone's field of vision. The construction of steel box girder is usually made in the factory and completed by on-site hoisting and installation. In the process of hoisting steel box girder, crane cushion is an important link. It refers to a material placed between the crane and the steel box girder when the crane is used to hoist the steel box girder. Taking the main bridge of Liujing Yujiang Bridge as an example, the lifting crane is transformed from a concrete section cantilever bridge machine. The steel cushion surface originally constructed in the concrete section can also be used on the steel box girder. However, in actual operation, before hoisting, it is necessary to design and improve the structural dimensions of the cushion according to the weight, shape and size of the steel box girder, and make corresponding adjustments and fixations to ensure the smooth progress of the hoisting process. At the same time, it is also necessary to pay attention to safety issues during the hoisting process, such as the stability of the bridge machine and the support force of the steel box girder, to ensure the safety of personnel and equipment. The original supporting device was a three-piece pillow. In order to increase the load-bearing area between the pillow and the steel box girder, a 24mm steel plate was used to weld and fill the gap at the bottom of the pillow, and the three pillows were welded together. However, since the width of the pillow was 30cm and the spacing between the cross-plates inside the steel box girder was 1-2m, the sum of the widths of the three pillows was smaller than the spacing between the cross-plates inside the steel box girder. As a result, the three-piece pillow support on the steel box girder failed to fully utilize the cross-plates to increase its bearing capacity, which increased the construction risk to a certain extent.

[0003] In view of the above problems, it is urgent to invent a bridge-building machine track support device suitable for steel box girder hoisting to meet the needs of steel box girder hoisting. Utility Model Content

[0004] In order to solve the above-mentioned deficiencies in the prior art, the utility model provides a bridge-building machine track support device suitable for steel box girder hoisting, which reinforces the original bridge-building machine pillow, uses H-shaped steel to improve its force form on the steel box girder, and uses rollers to achieve fine-tuning of the pillow to meet the use of the bridge-building machine track support on the steel box girder. The device has the characteristics of synchronous movement, fine-tuning, saving manpower and material resources, easy operation, and local reinforcement, and is suitable for steel beam hoisting construction.

[0005] The technical solution adopted to achieve the above-mentioned purpose of this application is:

[0006] A bridge-building machine track support device suitable for steel beam hoisting, comprising at least a cushion pillow, characterized in that: the cushion pillow is provided with three pieces, the three cushion pillows are installed side by side under the bridge-building machine track, the three cushion pillows are placed side by side, the cushion pillows are welded and fixed, and a second stiffening steel plate is welded to the empty part at the bottom of the cushion pillow;

[0007] Two H-shaped steels are arranged on both sides of the pillow. The H-shaped steel is located directly below the bridge-building machine track. The inner end of the H-shaped steel is in contact with the side of the pillow and is welded and fixed. The waist of the H-shaped steel is welded with a fourth stiffening steel plate. The fourth stiffening steel plate is tightly attached to the web of the H-shaped steel and is welded and fixed. The left and right sides of the H-shaped steel are also distributed with the first stiffening steel plate and the third stiffening steel plate. The first stiffening steel plate and the third stiffening steel plate are perpendicular to the wing plate and waist plate of the H-shaped steel.

[0008] The first stiffening steel plate is distributed at the outer ends of the four H-shaped steels, and its appearance is L-shaped. Part of the first stiffening steel plate protrudes from the wing plate of the H-shaped steel. A roller bracket is welded and fixed upward at the protruding part of the first stiffening steel plate. The roller is installed on the roller bracket. The four H-shaped steels correspond to four rollers respectively. The rollers are hung on the lower wing plate of the bridge-building machine track. When the bridge-building machine track moves, the supporting device moves as a whole.

[0009] Furthermore, a fifth stiffening steel plate is welded at the connection portion between the bolster and the H-shaped steel for reinforcement.

[0010] Furthermore, the length of the H-shaped steel is 1050 mm, the width of a single pillow is 300 mm, and the total length of the supporting device is 3 m, which is greater than the spacing between adjacent transverse partitions inside the steel box girder.

[0011] Furthermore, two first stiffening steel plates are arranged on a single H-shaped steel, the two first stiffening steel plates are arranged adjacent to each other, and the roller bracket is welded and fixed to the protruding parts of the two first stiffening steel plates at the same time.

[0012] Furthermore, the welded contact parts are all fully welded.

[0013] The beneficial effects of the utility model based on its technical solution are:

[0014] 1. The bridge-building machine track support device suitable for steel box girder hoisting provided in the utility model has a simple structure and is easy to process. It integrates the roller and the track structure into one, avoids repeated disassembly and relocation, improves work efficiency, and guarantees the construction progress to the greatest extent.

[0015] 2. The bridge-building machine track support device suitable for steel box girder hoisting provided in the utility model cleverly uses rollers and H-shaped steels to achieve the overall movement of the pillow forward and backward, changing the force form of the original pillow, so that its support can act on two cross partitions during each hoisting, greatly improving the reliability of the fulcrum.

[0016] 3. The bridge-building machine track support device suitable for steel box girder hoisting provided in the utility model adopts an overall H-shaped design, which can effectively avoid conflicts with auxiliary facilities such as track anchor points on the top surface of the steel box and reduce construction difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of the installation effect of the rail support device of the utility model steel box girder hoisting bridge-building machine;

[0018] Figure 2 for Figure 1 A partial enlarged view of

[0019] Figure 3 It is a top view of the track support device of the utility model for hoisting bridge-building machine for steel box beams;

[0020] Figure 4 This is a front view of the track support device of the utility model steel box girder hoisting bridge-building machine;

[0021] Figure 5 It is a side view of the track support device of the utility model steel box girder hoisting bridge-building machine;

[0022] In the figure: 1, pillow, 2, H-shaped steel, 3, roller, 4a, first stiffening steel plate, 4b, second stiffening steel plate, 4c, third stiffening steel plate, 4d, fourth stiffening steel plate, 4e, fifth stiffening steel plate. DETAILED DESCRIPTION

[0023] The present application is described in detail below with reference to the accompanying drawings.

[0024] The present application provides a bridge-building machine track support device suitable for steel beam hoisting, referring to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The contact parts of the following welding are all full welded. There are three cushions 1, which are installed side by side under the bridge-building machine track. The three cushions are placed side by side, and the cushions are welded and fixed. The second stiffening steel plate 4b is welded to the empty part at the bottom of the cushion.

[0025] Two H-shaped steels 2 are arranged on both sides of the pillow. The H-shaped steels 2 are located directly below the bridge-building machine track. The inner ends of the H-shaped steels are in contact with the side of the pillow and are welded and fixed. A fifth stiffening steel plate 4e is welded at the connection between the pillow and the H-shaped steel for reinforcement. The length of the H-shaped steel is 1050 mm, the width of a single pillow is 300 mm, and the total length of the support device is 3 m, which is greater than the spacing between adjacent transverse diaphragms inside the steel box girder.

[0026] The waist of the H-shaped steel is welded with a fourth stiffening steel plate 4d, which is tightly attached to the web of the H-shaped steel and welded and fixed. The left and right sides of the H-shaped steel are also distributed with a first stiffening steel plate 4a and a third stiffening steel plate 4c, which are perpendicular to the wing and waist of the H-shaped steel. The first stiffening steel plate is distributed at the outer end of the four H-shaped steels, and its shape is L-shaped, and part of the first stiffening steel plate protrudes from the wing of the H-shaped steel. A roller bracket is welded and fixed upward at the protruding part of the first stiffening steel plate. Two first stiffening steel plates are arranged on a single H-shaped steel, and the two first stiffening steel plates are arranged adjacently, and the roller bracket is welded and fixed to the protruding parts of the two first stiffening steel plates at the same time. The roller 3 is installed on the roller bracket, and the four H-shaped steels correspond to four rollers respectively; the roller is hung on the lower wing plate of the bridge-building machine track, and when the bridge-building machine track moves, the supporting device moves as a whole.

[0027] When the bridge-building machine track support device suitable for steel beam hoisting provided in the present application is working, the entire support device and the track are moved into place by the track travel hydraulic system through the roller 3, and the device is fine-tuned according to the position of the steel box beam diaphragm, and it is pulled on the track by the hand winch, and when the two diaphragms are within the range of the support device, it is dropped on the steel box beam. The roller is hung on the lower wing plate of the track H-shaped steel. When the bridge-building machine track moves, the support device can move with it. After the movement is completed, the position of the support device can be fine-tuned forward and backward by the roller.

[0028] The utility model can be improved or changed according to the above description for those skilled in the art, and all these improvements and changes should fall within the protection scope of the claims attached to the utility model.

Claims

1. A bridge-building machine track support device suitable for steel beam hoisting, comprising at least a cushion, characterized in that: The three pillows are arranged side by side and installed under the bridge-building machine track. The three pillows are placed side by side and fixed by welding. A second stiffening steel plate is welded to the empty part at the bottom of the pillow. Two H-shaped steels are arranged on both sides of the pillow. The H-shaped steel is located directly below the bridge-building machine track. The inner end of the H-shaped steel is in contact with the side of the pillow and is welded and fixed. The waist of the H-shaped steel is welded with a fourth stiffening steel plate. The fourth stiffening steel plate is tightly attached to the web of the H-shaped steel and is welded and fixed. The left and right sides of the H-shaped steel are also distributed with the first stiffening steel plate and the third stiffening steel plate. The first stiffening steel plate and the third stiffening steel plate are perpendicular to the wing plate and waist plate of the H-shaped steel. The first stiffening steel plate is distributed at the outer ends of the four H-shaped steels, and its appearance is L-shaped. Part of the first stiffening steel plate protrudes from the wing plate of the H-shaped steel. A roller bracket is welded and fixed upward at the protruding part of the first stiffening steel plate. The roller is installed on the roller bracket. The four H-shaped steels correspond to four rollers respectively. The rollers are hung on the lower wing plate of the bridge-building machine track. When the bridge-building machine track moves, the supporting device moves as a whole.

2. The bridge-building machine track support device suitable for steel beam hoisting according to claim 1 is characterized in that: A fifth stiffening steel plate is welded at the connection portion between the pillow and the H-shaped steel for reinforcement.

3. The bridge-building machine track support device suitable for steel beam hoisting according to claim 1 is characterized in that: The length of the H-shaped steel is 1050 mm, the width of a single pillow is 300 mm, and the total length of the supporting device is 3 m, which is greater than the spacing between adjacent transverse partitions inside the steel box girder.

4. The bridge-building machine track support device suitable for steel beam hoisting according to claim 1 is characterized in that: Two first stiffening steel plates are arranged on a single H-shaped steel, the two first stiffening steel plates are arranged adjacent to each other, and the roller bracket is welded and fixed to the protruding parts of the two first stiffening steel plates at the same time.

5. The bridge-building machine track support device suitable for steel beam hoisting according to claim 1 is characterized in that: The welded contact parts are all fully welded.

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