Self-propelled platform for main arch ring construction

Abstract

The utility model discloses a self-propelled platform for construction of a main arch ring, which comprises a walking system comprising at least two rails, a walking wheel assembly and a walking driving mechanism, the rails are laid on the main arch ring, and the walking wheel assembly can be matched to walk on the rails and is driven by the walking driving mechanism; the reverse buckling frame comprises a reverse buckling frame bearing beam and reverse buckling frame suspension beams, the two sides of the bottom face of the reverse buckling frame bearing beam are in rolling connection with the walking wheels, and the two ends of the reverse buckling frame bearing beam are connected with the vertically-arranged reverse buckling frame suspension beams respectively; and the two ends of the bearing system are connected with the lower ends of the two reverse buckling frame suspension beams correspondingly, and the bearing system is provided with a walkway for bearing personnel for construction. According to the utility model, a working platform is provided for a constructor to carry out stringing construction at the bottom of the main arch ring, and the construction period of dismantling the bottom plate can be effectively shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a self-propelled platform used for main arch ring construction. Background Art

[0002] The arch curve of the arch bridge can be varied, making the arch bridge unique and colorful, with high artistic value, and therefore deeply loved by people. However, as time goes by, the aging and damage of some arch bridges gradually become apparent, and with the increasing traffic flow today, a small number of arch bridges are overloaded, so they need to be dismantled.

[0003] At present, the main arch ring of the arch bridge cannot be removed as a whole due to various factors, so it is necessary to adopt piecemeal cutting for removal. Usually, the top plate of the main arch ring is removed first and then the bottom plate of the main arch ring. During the construction, the lifting is carried out by bottom lifting. When lifting the bottom plate of the main arch ring, because the bottom of the main arch ring is suspended in the air, it is difficult for the wire rope to pass through the bottom of the bottom plate from one lifting hole to reach another lifting hole arranged in the transverse direction of the bridge, resulting in too long time for the lifting of the bottom plate, affecting the construction period of removing the bottom plate. Utility Model Content

[0004] The utility model discloses a self-propelled platform for main arch ring construction, which provides a working platform for construction workers to carry out rope threading construction at the bottom of the main arch ring, and can effectively shorten the construction period of dismantling the bottom plate.

[0005] To achieve the above purpose, the technical solution of the utility model is:

[0006] A self-propelled platform for main arch ring construction, comprising:

[0007] A running system, comprising a track, a running wheel assembly and a running drive mechanism, wherein at least two tracks are provided for laying on the main arch ring, and the running wheel assembly can match and run on the track and is driven by the running drive mechanism;

[0008] The buckle frame includes at least one buckle frame unit, wherein the buckle frame unit includes a buckle frame load-bearing beam and a buckle frame suspension beam, the bottom surfaces of the buckle frame load-bearing beam are rollingly connected to the running wheel assembly at both sides, and the two ends are respectively connected to the vertically arranged buckle frame suspension beams, and the spacing between the two buckle frame suspension beams is greater than the width of the main arch ring;

[0009] The load-bearing system has two ends respectively connected to the lower ends of the two inverted frame suspension beams, and has a walkway for carrying construction personnel.

[0010] Furthermore, the load-bearing system includes cross beams, longitudinal beams and walkway plates. There are at least two cross beams, which are respectively connected to the front and rear of the lower ends of the two inverted frame suspension beams. Multiple longitudinal beams are longitudinally spaced and connected between the cross beams, and walkway plates are laid on the multiple longitudinal beams.

[0011] Furthermore, protective railings are provided around the sides of the walkway plate.

[0012] Furthermore, there are at least two flip-frame units, the number of which matches the number of the crossbeams, one flip-frame unit is connected to one crossbeam, and adjacent flip-frame units are connected by at least two flip-frame connecting beams, and the flip-frame connecting beams are symmetrically fixed on both sides of adjacent flip-frame load-bearing beams.

[0013] Furthermore, the running wheel assembly includes a running wheel fixing seat, a running wheel body and a roller, the upper end of the running wheel fixing seat is connected to the reverse buckle frame load-bearing beam, and the lower part is rollingly connected to the running wheel body through the roller.

[0014] Furthermore, both ends of the running wheel body are provided with retaining rings protruding toward the circumferential side, and the distance between the retaining rings matches the width of the track.

[0015] Furthermore, the load-bearing beam of the inverted frame and the suspension beam of the inverted frame are made of I-beams.

[0016] Furthermore, the cross beam is made of I-beam, and the longitudinal beam is made of square steel.

[0017] Furthermore, the buckle frame connecting beam is made of I-beam.

[0018] Furthermore, a connecting plate is welded to the top of the inverted buckle frame suspension beam, and the connecting plate is connected to the lower flange of the inverted buckle frame load-bearing beam through a bolt assembly.

[0019] When the self-propelled platform for main arch construction described above is used, the traveling drive mechanism is connected to the traveling wheel assembly and then fixed on the inverted frame, and the inverted frame, the traveling drive mechanism and the traveling wheel assembly are placed on the track, and the load-bearing system is fixed to the lower end of the inverted frame, and the load-bearing system is moved to the corresponding lifting hole by the driving of the traveling drive mechanism. The load-bearing beam of the inverted frame is arranged along the width direction of the main arch, and correspondingly, the load-bearing system also has a walkway arranged along the width direction of the main arch. In this way, when lifting the bottom plate of the main arch, after the steel wire rope passes through the bottom of the bottom plate from a lifting hole on one side of the bottom plate of the main arch, the construction personnel walk from one side to the other on the walkway, so that the steel wire rope reaches another lifting hole arranged in the transverse direction of the bridge, and then passes through the lifting hole upward.

[0020] The utility model provides a working platform for construction workers to carry out rope threading construction at the bottom of the main arch ring, which can effectively shorten the construction period of dismantling the bottom plate and ensure the construction safety of the construction workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0022] Figure 2 It is an enlarged structural diagram of the running system.

[0023] In the figure, there are a running system 100, a running wheel assembly 110, a running wheel fixing seat 111, a roller 112, a running wheel body 113, a track 120, a buckle frame 200, a buckle frame load-bearing beam 210, a buckle frame suspension beam 220, a buckle frame connecting beam 230, a load-bearing system 300, a walkway plate 310, a guardrail 320, a longitudinal beam 330, a cross beam 340, and a main arch ring 400. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the present utility model, it should be noted that the terms "upper" and "lower" etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present utility model.

[0026] In this application, 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 connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0027] A self-propelled platform for main arch construction, including a running system 100, a buckle frame 200 and a load-bearing system 300, wherein: the running system 100 includes a track 120, a running wheel assembly 110 and a running drive mechanism, the track 120 is provided with at least two tracks, the running wheel assembly 110 can match and run on the track 120, and is driven by the running drive mechanism, the running drive mechanism can use a motor, the track 120 is laid on the main arch 400, and needs to be longitudinally bent in advance according to the line shape of the main arch 400 to ensure that it can fit closely to the main arch 400, and the track 120 is fixed by pre-buried steel bars and pressure plates during installation Fixed to the web of the main arch ring 400; the flip frame 200, which includes at least one flip frame unit, the flip frame unit includes a flip frame load-bearing beam 210 and a flip frame suspension beam 220, the bottom surfaces of the flip frame load-bearing beam 210 are rollingly connected to the running wheel assembly 110 on both sides, and the two ends are respectively connected to the vertically arranged flip frame suspension beams 220, and the spacing between the two flip frame suspension beams 220 needs to be greater than the width of the main arch ring 400, so as to be flipped on the main arch ring 400, and extend downward to install the load-bearing system 300; the load-bearing system 300, at both ends of which are respectively connected to the lower ends of the two flip frame suspension beams 220, and has a walkway for carrying construction personnel. When in use, the travel drive mechanism is connected to the traveling wheel assembly 110 and fixed on the reverse frame 200, and the reverse frame 200, the traveling drive mechanism and the traveling wheel assembly 110 are placed on the track, and the load-bearing system is fixed to the lower end of the reverse frame 200. The distance between the walkway of the load-bearing system and the bottom plate of the main arch ring is preferably to accommodate a person standing completely. The load-bearing system is driven to move to the corresponding lifting hole by the travel drive mechanism, and the inverted frame load-bearing beam 210 is arranged along the width direction of the main arch ring 400. Correspondingly, the load-bearing system 300 also has a walkway arranged along the width direction of the main arch ring 400. In this way, when lifting the main arch ring bottom plate, the steel wire rope passes through the bottom of the bottom plate from a lifting hole on one side of the main arch ring bottom plate, and the construction personnel walk from one side to the other side on the walkway, so that the steel wire rope reaches another lifting hole arranged in the transverse direction of the bridge, and then passes through the lifting hole upward. The self-propelled platform of this embodiment provides a working platform for construction personnel to thread the rope at the bottom of the main arch ring 400, which can effectively shorten the construction period of removing the bottom plate. After completing the threading operation of one bottom plate, the travel system 100 is controlled to move to other positions, and threading operations of other bottom plates can be performed.

[0028] Further, the present embodiment provides a preferred load-bearing system 300, which includes a crossbeam 340, a longitudinal beam 330 and a walkway plate 310. At least two crossbeams 340 are provided, which are respectively connected to the front and rear of the lower ends of the two inverted frame suspension beams 220. A plurality of longitudinal beams 330 are longitudinally spaced and connected between the crossbeams 340. A walkway plate 310 is laid on the plurality of longitudinal beams 330. The walkway plate 310 provides a walkway for construction personnel. The crossbeam 340 and the longitudinal beam 330 are generally vertically connected to ensure the support strength of the walkway plate 310. The crossbeam 340 can be made of I-beam, the longitudinal beam 330 can be made of square steel, and the walkway plate 310 can be made of patterned steel plate. In the present embodiment, the crossbeam 340 is made of I20 I-beam, the longitudinal beam 330 is made of 100*100*5mm square steel, and the walkway plate 310 is made of 3mm thick patterned steel plate.

[0029] Furthermore, a guardrail 320 is provided around the side of the walkway plate 310. The guardrail can be welded by φ48*5mm steel pipes to protect construction workers from falling from the load-bearing system 300, thereby improving the safety of the operation.

[0030] Furthermore, at least two flip frame units are provided, and the number matches the number of cross beams 340. One flip frame unit is connected to one cross beam 340, and adjacent flip frame units are connected by at least two flip frame connecting beams 230. The flip frame connecting beams 230 are symmetrically fixed on both sides of adjacent flip frame load-bearing beams 210 with the center line of the width direction of the flip frame load-bearing beam 210 as the symmetry axis. Of course, a flip frame connecting beam 230 can also be provided at the center of the flip frame load-bearing beam 210 as needed. Each flip frame unit is connected to one cross beam 340, and the flip frame units are connected by the flip frame connecting beams 230, and the bottom cross beams 340 are also connected by the longitudinal beams 330, which can better maintain the balance and integrity of the entire platform.

[0031] Furthermore, the running wheel assembly 110 includes a running wheel fixing seat 111, a running wheel body 113 and a roller 112. The upper end of the running wheel fixing seat 111 is connected to the buckle frame load-bearing beam 210, and the lower part is rollingly connected to the running wheel body through the roller 112. By welding the running wheel fixing seat 111 to the buckle frame load-bearing beam 210 or bolting, the bottom sides of the buckle frame load-bearing beam 210 can be rolledly connected to the running wheel assembly 110.

[0032] Furthermore, both ends of the running wheel body 113 have retaining rings protruding toward the circumferential side, and the distance between the retaining rings matches the width of the track 120 . The retaining rings can prevent the running wheel body 113 from leaving the track 120 .

[0033] Furthermore, the buckle frame load-bearing beam 210, the buckle frame suspension beam 220 and the buckle frame connecting beam 230 are made of I-beams. In this embodiment, I20 I-beams are used. Figure 1 In the direction shown, the upper flange and lower flange of the buckle frame load-bearing beam 210 are respectively located above and below the web, and the upper flange and lower flange of the buckle frame connecting beam 230 are respectively located in front of and behind the web. Only the flange can be seen in the direction shown in the figure. The placement direction of the cross beam 340 is the same as that of the buckle frame load-bearing beam 210. When the two cross beams 340 are connected to the buckle frame suspension beam 220 made of I-beam, the upper flange thereof corresponds to the flange and web of the buckle frame suspension beam 220, which can be connected by welding or bolt assembly. The buckle frame suspension beam 220 is connected to the buckle frame load-bearing beam 210 in a detachable connection manner. A connecting plate is welded on the top of the buckle frame suspension beam 220, and the connecting plate is connected to the lower flange of the buckle frame load-bearing beam 210 by a bolt assembly. The I-beam has high strength and can prevent deformation during operation. The inverted buckle frame suspension beam 220 and the inverted buckle frame load-bearing beam 210 are connected in a detachable manner, so the inverted buckle frame suspension beam 220 and the load-bearing system 300 can be easily installed under the inverted buckle frame load-bearing beam 210.

Claims

1. A self-propelled platform for main arch construction, characterized in that include: A running system, comprising a track, a running wheel assembly and a running drive mechanism, wherein at least two tracks are provided for laying on the main arch ring, and the running wheel assembly can match and run on the track and is driven by the running drive mechanism; The buckle frame includes at least one buckle frame unit, wherein the buckle frame unit includes a buckle frame load-bearing beam and a buckle frame suspension beam, wherein both sides of the bottom surface of the buckle frame load-bearing beam are rollingly connected to the running wheel assembly, and both ends are respectively connected to the vertically arranged buckle frame suspension beams, and the spacing between the two buckle frame suspension beams is greater than the width of the main arch ring; The load-bearing system has two ends respectively connected to the lower ends of the two inverted frame suspension beams, and has a walkway for carrying construction personnel.

2. The self-propelled platform for main arch construction according to claim 1, characterized in that: The load-bearing system includes cross beams, longitudinal beams and walkway plates. There are at least two cross beams, both ends of which are respectively connected to the lower ends of the two inverted frame suspension beams. Multiple longitudinal beams are longitudinally spaced and connected between the cross beams, and walkway plates are laid on the multiple longitudinal beams.

3. The self-propelled platform for main arch construction according to claim 2, characterized in that: A protective railing is arranged on the peripheral side of the walkway plate.

4. The self-propelled platform for main arch construction according to claim 2 or 3, characterized in that: At least two flip-frame units are provided, and the number matches the number of the crossbeams. One flip-frame unit is connected to one crossbeam, and adjacent flip-frame units are connected by at least two flip-frame connecting beams, and the flip-frame connecting beams are symmetrically fixed on both sides of adjacent flip-frame load-bearing beams.

5. The self-propelled platform for main arch construction according to claim 1, characterized in that: The running wheel assembly comprises a running wheel fixing seat, a running wheel body and a roller. The upper end of the running wheel fixing seat is connected to the buckle frame load-bearing beam, and the lower part is rollingly connected to the running wheel body through the roller.

6. The self-propelled platform for main arch construction according to claim 5, characterized in that: The two ends of the running wheel body are provided with retaining rings protruding toward the circumference, and the distance between the retaining rings matches the width of the track.

7. The self-propelled platform for main arch construction according to claim 1, characterized in that: The load-bearing beam of the inverted buckle frame and the suspension beam of the inverted buckle frame are made of I-beams.

8. The self-propelled platform for main arch construction according to claim 2, characterized in that: The cross beam is made of I-beam, and the longitudinal beam is made of square steel.

9. The self-propelled platform for main arch construction according to claim 4, characterized in that: The buckle frame connecting beam is made of I-beam.

10. The self-propelled platform for main arch construction according to claim 7, characterized in that: A connecting plate is welded on the top of the inverted buckle frame suspension beam, and the connecting plate is connected to the lower flange of the inverted buckle frame load-bearing beam through a bolt assembly.

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