Self-track-laying device for corrugated steel web bridge cantilever construction

Abstract

The utility model provides a self-track-laying device for corrugated steel web bridge cantilever construction, and belongs to the technical field of bridge construction. The self-track-laying device for corrugated steel web bridge cantilever construction comprises a foundation structure and a laying structure. The foundation structure comprises a corrugated steel web and a supporting platform, a rolling rod is installed on the top face of the supporting platform, and a jack is arranged on the hanging basket walking mechanism. The laying structure comprises a supporting base, a walking track, a guiding piece and a steel wire rope, the supporting base is arranged at the output end of the jack, a crane is installed on the supporting base, the walking track is arranged on the top face of the rolling rod, and the steel wire rope is installed on the guiding piece and a lifting hook of the crane. According to the bridge deck crane, the lifting function of the bridge deck crane is utilized, self track laying is achieved, the situation that in the dismantling process of a traditional bridge deck crane, walking tracks need to be laid with the help of large equipment, the project progress is affected, and use is more convenient is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a self-tracking device for cantilever construction of a corrugated steel web bridge. Background Art

[0002] Bridge construction is the process of building a bridge according to the design content; it mainly refers to bridge construction technology and construction organization, construction management, construction quality and other contents.

[0003] At present, in the traditional bridge construction process, when the cantilever construction method is adopted, a bridge crane is required to perform lifting operations to ensure the efficiency and safety of the construction. However, after the construction is completed, the removal of the bridge crane is a very complicated process, which needs to take into account many factors, such as safety, efficiency and cost. In the removal of the crane used for cantilever construction of the corrugated steel web bridge, the bridge crane needs to be lifted above the concrete surface first, and then inserted into the backward walking track as the path for the crane to move backward. However, the walking track of the bridge crane is heavy, and it cannot be laid with the help of large equipment on the cross-river bridge, which affects the progress of the project. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a self-tracking device for cantilever construction of corrugated steel web bridge, which aims to improve the problem that during the dismantling of the crane used for cantilever construction of corrugated steel web bridge, the bridge crane needs to be lifted above the concrete surface first, and then inserted into the backward walking track as the path for the crane to move backward. However, the walking track of the bridge crane is heavy and cannot be laid with the help of large equipment on the cross-river bridge, thus affecting the progress of the project.

[0005] The utility model is achieved in this way:

[0006] The utility model provides a self-track laying device for cantilever construction of a corrugated steel web bridge, comprising a foundation structure and a laying structure.

[0007] The basic structure includes a corrugated steel web and a support platform, the support platform is fixed to one side of the top surface of the corrugated steel web, a rolling rod is installed on the top surface of the support platform, a hanging basket walking mechanism is installed on the other side of the top surface of the corrugated steel web, and a jack is arranged on the hanging basket walking mechanism. The laying structure includes a support base, a walking track, a guide member and a steel wire rope, the support base is placed at the output end of the jack, a crane is installed on the support base, the walking track is placed on the top surface of the rolling rod, the guide member is installed on the walking track and the support base, and the steel wire rope is installed on the guide member and the hook of the crane.

[0008] In one embodiment of the utility model, bearing seats are installed at both ends of the rolling rod, the bearing seats are installed on the top surface of the support platform, the rolling rods are equidistantly distributed on the top surface of the support platform, and the jacks are symmetrically distributed on the hanging basket walking mechanism.

[0009] In one embodiment of the utility model, the support base includes two cross beams and two longitudinal beams, the two longitudinal beams are installed and fixed between the two cross beams, an inclined bracing beam is installed between the cross beams and the longitudinal beams, the crane is installed on the inclined bracing beam, and the output end of the jack is located at the bottom of the longitudinal beam.

[0010] In one embodiment of the utility model, the guide member includes an ear plate and a fixed pulley, the ear plate is fixed on the walking track, the fixed pulley is installed on one side of the crossbeam, one end of the wire rope is installed in a through hole inside the ear plate, and the wire rope passes through the fixed pulley and is connected to the hook of the crane.

[0011] In an embodiment of the utility model, a track pad is provided between the hanging basket traveling mechanism and the traveling track.

[0012] The beneficial effects of the utility model are as follows: the utility model obtains a self-track laying device for cantilever construction of a corrugated steel web bridge through the above design. When in use, the ear plate is fixed on the top surface of the walking track, one end of the wire rope is installed on the ear plate, and then the other end is wound around the fixed pulley and installed on the hook of the crane. At this time, the crane is used to pull the wire rope to move, so as to pull the walking track to the bottom of the supporting base. When the ear plate moves to the fixed pulley, the ear plate is cut off and re-fixed on the walking track and repeated. After the walking track completes entering the bottom of the supporting base, the track pad is placed between the hanging basket walking mechanism and the supporting base to complete the laying. At this time, the jack is returned to the oil and the jack is removed to complete the laying. In this way, self-track laying is realized by utilizing the lifting function of the bridge crane itself, avoiding the need to use large equipment to lay the walking track during the traditional bridge crane dismantling process, thereby affecting the project progress and making it more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a structural schematic diagram of a self-tracking device for cantilever construction of a corrugated steel web bridge provided by an embodiment of the utility model;

[0015] Figure 2 A schematic diagram of the moving structure of the travel track of the self-track-laying device for cantilever construction of a corrugated steel web bridge provided by the embodiment of the utility model;

[0016] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle;

[0017] Figure 4 A schematic diagram of the three-dimensional structure of a self-tracking device for cantilever construction of a corrugated steel web bridge provided by an embodiment of the utility model;

[0018] Figure 5 For this utility model Figure 4 Enlarged view of point B in the middle.

[0019] In the figure: 100-foundation structure; 110-corrugated steel web; 120-support platform; 130-rolling rod; 140-basket walking mechanism; 150-jack; 200-laying structure; 210-support base; 211-crossbeam; 212-longitudinal beam; 213-diagonal bracing beam; 220-crane; 230-travel track; 240-guide member; 241-ear plate; 242-fixed pulley; 250-wire rope; 260-track pad. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example

[0022] See also Figure 1-Figure 5 The utility model provides a technical solution: a self-track laying device for cantilever construction of a corrugated steel web bridge, comprising a foundation structure 100 and a laying structure 200.

[0023] See also Figure 1-Figure 3The basic structure 100 includes a corrugated steel web 110 and a support platform 120. The support platform 120 is fixed to one side of the top surface of the corrugated steel web 110. A rolling rod 130 is installed on the top surface of the support platform 120. A hanging basket walking mechanism 140 is installed on the other side of the top surface of the corrugated steel web 110. A jack 150 is arranged on the hanging basket walking mechanism 140. Bearing seats are installed at both ends of the rolling rod 130. The bearing seats are installed on the top surface of the support platform 120. The rolling rods 130 are equidistantly distributed on the top surface of the support platform 120. The jacks 150 are symmetrically distributed on the hanging basket walking mechanism 140. Here, the rolling rod 130 can reduce the friction between the walking track 230 and the support platform 120 during the movement process, making the movement more convenient and smooth. The jack 150 is used to lift the support base 210, so as to facilitate the insertion of the walking track 230.

[0024] See also Figure 1-Figure 5 The laying structure 200 includes a supporting base 210, a walking track 230, a guide member 240 and a steel wire rope 250. The supporting base 210 is placed at the output end of the jack 150. A crane 220 is installed on the supporting base 210. The walking track 230 is placed on the top surface of the rolling rod 130. The guide member 240 is installed on the walking track 230 and the supporting base 210. The steel wire rope 250 is installed on the guide member 240 and the hook of the crane 220.

[0025] The support base 210 includes two cross beams 211 and two longitudinal beams 212. The two longitudinal beams 212 are installed and fixed between the two cross beams 211. A diagonal brace beam 213 is installed between the cross beams 211 and the longitudinal beams 212. The crane 220 is installed on the diagonal brace beam 213. The output end of the jack 150 is located at the bottom of the longitudinal beam 212. Here, the support base 210 is used for the installation and connection of the crane 220. The guide member 240 includes an ear plate 241 and a fixed pulley 242. The ear plate 241 is fixed on the walking track 230. The fixed pulley 242 is installed on one side of the cross beam 211. One end of the wire rope 250 is installed in the through hole inside the ear plate 241. The wire rope 250 passes through the fixed pulley 242 and is connected to the hook of the crane 220. Here, the guide member 240 can change the convenience of the wire rope 250 so as to facilitate the traction of the walking track 230. A track pad 260 is provided between the hanging basket traveling mechanism 140 and the traveling track 230 , and the track pad 260 can make the traveling track 230 be placed more stably.

[0026] Specifically, the working principle of the self-tracking device for cantilever construction of corrugated steel web bridge is as follows: when in use, the ear plate 241 is fixed to the top surface of the walking track 230, one end of the wire rope 250 is installed on the ear plate 241, and then the other end is wound around the fixed pulley 242 and installed on the hook of the crane 220. At this time, the crane 220 is used to pull the wire rope 250 to move, so as to pull the walking track 230 to the bottom of the supporting base 210. When the ear plate 241 moves to the fixed pulley 242, the ear plate 241 is cut off and fixed to the walking track again. The process is repeated on the track 230. When the track 230 enters the bottom of the support base 210, the track pad 260 is placed between the hanging basket walking mechanism 140 and the support base 210 to complete the laying. At this time, the jack 150 is returned to the oil and the jack 150 is removed to complete the laying. In this way, the self-laying track is realized by utilizing the lifting function of the bridge crane 220 itself, avoiding the need to use large equipment to lay the track 230 during the dismantling process of the traditional bridge crane 220, thereby affecting the progress of the project and making it more convenient to use.

[0027] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A self-tracking device for cantilever construction of a corrugated steel web bridge, comprising a base structure (100) and a laying structure (200) installed on the base structure (100), characterized in that: The foundation structure (100) comprises a corrugated steel web (110) and a support platform (120), wherein the support platform (120) is fixed to one side of the top surface of the corrugated steel web (110), a rolling rod (130) is installed on the top surface of the support platform (120), and a hanging basket walking mechanism (140) is installed on the other side of the top surface of the corrugated steel web (110), and a jack (150) is arranged on the hanging basket walking mechanism (140); The laying structure (200) comprises a supporting base (210), a walking track (230), a guide member (240) and a steel wire rope (250); the supporting base (210) is placed at the output end of the jack (150); a crane (220) is installed on the supporting base (210); the walking track (230) is placed on the top surface of the rolling rod (130); the guide member (240) is installed on the walking track (230) and the supporting base (210); and the steel wire rope (250) is installed on the guide member (240) and the hook of the crane (220).

2. The self-tracking device for cantilever construction of a corrugated steel web bridge according to claim 1, characterized in that: Bearing seats are installed at both ends of the rolling rod (130), and the bearing seats are installed on the top surface of the supporting platform (120). The rolling rods (130) are distributed at equal distances on the top surface of the supporting platform (120), and the jacks (150) are symmetrically distributed on the hanging basket walking mechanism (140).

3. The self-tracking device for cantilever construction of a corrugated steel web bridge according to claim 1, characterized in that: The support base (210) comprises two cross beams (211) and two longitudinal beams (212); the two longitudinal beams (212) are installed and fixed between the two cross beams (211); an oblique support beam (213) is installed between the cross beam (211) and the longitudinal beams (212); the crane (220) is installed on the oblique support beam (213); and the output end of the jack (150) is located at the bottom of the longitudinal beam (212).

4. The self-tracking device for cantilever construction of a corrugated steel web bridge according to claim 3, characterized in that: The guide member (240) comprises an ear plate (241) and a fixed pulley (242), wherein the ear plate (241) is fixed on the walking track (230), the fixed pulley (242) is installed on one side of the crossbeam (211), one end of the steel wire rope (250) is installed in a through hole inside the ear plate (241), and the steel wire rope (250) passes through the fixed pulley (242) and is connected to a hook of the crane (220).

5. The self-tracking device for cantilever construction of a corrugated steel web bridge according to claim 3, characterized in that: A track pad (260) is provided between the hanging basket walking mechanism (140) and the walking track (230).

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