A type of flat-transfer beam car

Abstract

This utility model provides a horizontal beam transfer vehicle. The horizontal beam transfer vehicle includes a load-bearing platform, a chassis, and a power unit for driving the load-bearing platform to rotate horizontally. The load-bearing platform is equipped with a central shaft adapted to the chassis. The power unit includes a winch and flat wheel boxes. The winch is mounted on the chassis. Multiple flat wheel boxes are evenly distributed circumferentially around the central shaft at the lower end of the load-bearing platform. The upper surface of the chassis is provided with tracks adapted to the flat wheel boxes. The winch is driven by the flat wheel boxes in a traction manner. Vertical supports are provided on the side walls of the chassis, located on two opposite sides of the chassis. This utility model, by providing vertical supports on the sides of the chassis, increases the rigidity of the lower support system during the horizontal rotation of the load-bearing platform, reducing deformation and improving structural safety.

Description

Technical Field

[0001] This utility model relates to the field of bridge installation technology, and in particular to a flat beam transport vehicle. Background Technology

[0002] With the increasing demand for large-tonnage bridges spanning seas and rivers, the requirements for bridge machinery and equipment are becoming increasingly stringent. Bridge construction is no longer limited to traditional small-scale projects, but is gradually moving towards mega-projects such as cross-sea bridges and high-speed railway bridges, which require the ability to withstand enormous loads and cope with complex environments. This development trend has not only driven innovation in bridge design and construction technologies, but also highlighted the irreplaceable core role of machinery and equipment in the entire engineering chain. From design and manufacturing to construction and maintenance, high-performance, high-efficiency, and high-reliability machinery and equipment have become a key support for the sustainable development of bridge engineering in China.

[0003] The trend towards longer spans in bridge engineering means a further increase in the weight and load-bearing capacity of components, which places higher demands on the transportation and installation capabilities of machinery and equipment. Specialized transport vehicles and bridge erecting machines have become indispensable tools in the erection of large-tonnage beams, and their design must be precisely matched with the specific parameters of the bridge project.

[0004] Existing bridge transport vehicles, such as the bridge body transport vehicle fixing device disclosed in patent publication number CN112009352A, include a fixed base and a receiving block horizontally disposed on the fixed base. The receiving block can be used to support the bridge body and is connected to the fixed base through a rotating component, allowing the receiving block to rotate while supporting the bridge body. However, for transporting large-tonnage bridges, the horizontal rotation of the carrying platform generates uneven vertical forces on the beam transport vehicle. Its simple chassis structure lacks the ability to cope with this deformation, resulting in significant structural deformation. Therefore, existing transport vehicles are unsuitable for transporting large-tonnage bridges. Utility Model Content

[0005] The purpose of this utility model is to provide a flat-transfer beam vehicle that solves the problem of chassis deformation due to vertical force and is suitable for use on 700t-class bridges.

[0006] The technical solution of this utility model is: a horizontal transport beam vehicle, including a bearing platform, a chassis, and a power device for driving the bearing platform to rotate horizontally. The bearing platform is provided with a central shaft adapted to the chassis. The power device includes a winch and a horizontal wheel box. The winch is installed on the chassis. Multiple horizontal wheel boxes are evenly distributed around the central shaft at the lower end of the bearing platform. The upper surface of the chassis is provided with a track adapted to the horizontal wheel box. The winch is driven and connected to the horizontal wheel box by traction. Vertical supports are provided on the side walls of the chassis, and the vertical supports are located on two opposite sides of the chassis.

[0007] In the above scheme, by setting vertical supports on the side of the chassis, the rigidity of the lower support system is increased when the load-bearing platform rotates horizontally, thereby reducing deformation and improving structural safety.

[0008] Preferably, the vertical support is located in the middle of the side wall of the chassis.

[0009] Preferably, an auxiliary platform is also provided on the side wall of the chassis. The auxiliary platform is located on two opposite sides of the chassis, and the vertical support is not on the same side as the auxiliary platform.

[0010] Preferably, the auxiliary platform is provided with wheel boxes at both ends.

[0011] Preferably, the bearing platform includes a frame, telescopic beams and telescopic arms. Telescopic arms are provided at both ends of the frame along its length. Two telescopic arms are provided in the width direction of the frame. Each telescopic arm has a telescopic beam installed in it via a drive mechanism. The central shaft and the flat wheel box are located on the frame.

[0012] Preferably, the telescopic arm is a variable diameter structure with one end larger than the other, with its larger diameter end connected to the frame, and the telescopic beam extending from the smaller diameter end of the telescopic arm.

[0013] Preferably, the chassis includes at least two first beams spaced apart and at least three second beams spaced apart, the at least two first beams connecting the at least three second beams, vertical supports being provided on the outer surface of the second beams at the ends and on one side surface of the second beams in the middle, the winch being installed between the first beams and the second beams, and the track being provided on the upper surface of the first beams and the second beams.

[0014] Preferably, the vertical support includes an upper support, a lower support located below the upper support, and a connecting column connecting the upper support and the lower support, both of which are connected to the second beam.

[0015] Compared with related technologies, the beneficial effects of this utility model are as follows:

[0016] I. This utility model improves the rigidity of the lower support system by setting vertical supports on the side of the chassis, which can reduce deformation when the load-bearing platform rotates horizontally. It solves the problem of uneven stress on the chassis during the horizontal rotation of large-tonnage steel beams, improves the uniformity of stress distribution and optimizes the force transmission path, thereby improving structural safety.

[0017] Second, by setting up wheel boxes at both ends of the two auxiliary platforms of the chassis, four support points are formed for the beam transport vehicle, which can reduce the bending moment of the beam transport vehicle, ensure the stability and reliability of the transportation of large-tonnage segmental steel beams, and improve the overall stress resistance of the beam transport vehicle.

[0018] Third, the horizontal rotation of the carrying platform is achieved by a winch, which can control the stroke of the winch to achieve efficient, energy-saving and reliable operation of the horizontal rotation process;

[0019] Fourth, the load-bearing platform adopts a telescopic structure, and the length of the load-bearing platform can be adjusted according to the size of different models of large-tonnage segmental steel beams, thereby improving versatility;

[0020] Fifth, the telescopic arm of the load-bearing platform has a variable diameter structure, which provides better stress resistance. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of the flat transfer beam vehicle provided by this utility model;

[0022] Figure 2 for Figure 1 A schematic diagram of the chassis and winch installation structure.

[0023] Figure 3 for Figure 1 A schematic diagram of the structure for installing the load-bearing platform and the flat wheel box;

[0024] Figure 4 This is a schematic diagram of the flat transport beam vehicle provided by this utility model in use.

[0025] In the attached diagram: 1. Chassis; 11. First beam; 12. Second beam; 13. Third beam; 14. Fourth beam; 15. Auxiliary platform; 16. Vertical support; 161. Upper support; 162. Lower support; 163. Connecting column; 17. Traveling wheel box; 18. Track; 2. Bearing platform; 21. Central shaft; 22. Frame; 23. Telescopic beam; 24. Telescopic boom; 3. Power unit; 31. Winch; 32. Flat wheel box; 100. Steel beam. Detailed Implementation

[0026] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present invention can be combined with each other. For ease of description, the terms "upper," "lower," "left," and "right" appearing below only indicate that they correspond to the upper, lower, left, and right directions in the accompanying drawings and do not limit the structure.

[0027] like Figure 1 As shown, the flat transport beam vehicle provided in this embodiment includes a chassis 1, a load-bearing platform 2, and a power unit 3. The power unit 3 includes a winch 31 and a flat wheel box 32.

[0028] like Figure 2As shown, the chassis 1 includes a first beam 11, a second beam 12, a third beam 13, a fourth beam 14, an accessory platform 15, a vertical support 16, a traveling wheel box 17, and a track 18.

[0029] Three first beams 11 are spaced apart in the first direction. Three second beams 12 are spaced apart in the second direction. The three first beams 11 and the three second beams 12 enclose a "field" shape. For the convenience of installation, the middle second beam 12 can be a segmented structure. The third beam 13 is connected between the first beam 11 and the second beam 12 in an "X" shape. The fourth beam 14 is provided at the corner of the "field" shape. The fourth beam 14 is simultaneously connected to the first beam 11, the second beam 12, and the third beam 13. The track 18 is circularly provided on the upper surfaces of the first beam 11, the second beam 12, and the fourth beam 14. The above-mentioned first direction and second direction are perpendicular to each other on the same top view projection plane.

[0030] Vertical supports 16 are provided on the outer side surfaces of the two second beams 12 at the ends, and the vertical supports 16 at this position are located in the middle of the second beam 12. Vertical supports 16 are provided on one side surface of the two second beams 12 that are segmented by the first beam 11 in the middle, and the vertical supports 16 at this position are provided close to the first beam 11 at the end.

[0031] The vertical support 16 includes an upper support 161, a lower support 162 located below the upper support 161, and a connecting column 163 connected between the upper support 161 and the lower support 162. The connecting column 163 can be bolted to the upper support 161 and the lower support 162. One ends of the upper support 161 and the lower support 162 are both connected to the second beam 12, and the other ends of the upper support 161 and the lower support 162 horizontally extend to install the connecting column 163.

[0032] Accessory platforms 15 are provided on the outer side surfaces of the two first beams 11 at the ends. The accessory platforms 15 are used to install generators, control systems, and other accessories, and also serve as operation and construction platforms. The control system automatically controls the start and stop of the traveling and horizontal rotation of the equipment through a PLC program. Traveling wheel boxes 17 are provided at both ends of the accessory platform 15. The traveling wheel boxes 17 are selected as double wheel boxes. ​​​​​​As shown, the supporting platform 2 includes a central shaft 21, a frame 22, a telescopic beam 23, and a telescopic arm 24. One end of the central shaft 21 is connected to the middle of the frame 22, and the other end of the central shaft 21 is rotatably connected to the chassis 1. Multiple flat wheel boxes 32 are connected to the lower end of the frame 22, and are evenly distributed around the central shaft 21. The flat wheel boxes 32 are adapted to the track 18. The winch 31 is a continuously variable frequency hydraulic winch, which serves as the traction power source for the flat rotation system. The control system controls the stroke of the winch 31, driving the flat wheel boxes 32 to move along the track 18 in a traction manner, thus realizing the operation of the supporting platform 2.

[0035] The structure of the frame 22 is the same as the structure enclosed by the first beam 11, the second beam 12, the third beam 13, and the fourth beam 14 on the chassis 1. Telescopic arms 24 are provided at both ends along the length of the frame 22, and two telescopic arms 24 are provided along the width of the frame 22. Each telescopic arm 24 has a telescopic beam 23 mounted within it via a drive mechanism. The drive mechanism can be a hydraulic cylinder.

[0036] The telescopic arm 24 is a variable diameter structure with one end larger than the other. Its large diameter end is connected to the frame 22, and the telescopic beam 23 extends from the small diameter end of the telescopic arm 24.

[0037] like Figure 4 As shown, the steel beam 100 is placed on the support platform 2. In addition, the flat-transfer beam vehicle is also equipped with a generator, operating platform, etc., which are electrically connected to the control system.

[0038] The horizontal transport beam trolley provided by this utility model has a load-bearing capacity of 700t, a maximum load-bearing width of 30m, a load-bearing length of 20m, and a height of 3m. It solves the problems of transporting, horizontally rotating, and adjusting the posture of large-span bridge segments with heavy components before lifting and installation. Utilizing a winch 31 as the traction system, combined with a horizontal rotating wheel box 32 to drive the load-bearing platform 2 to rotate horizontally along its central axis 21, the horizontal rotation efficiency of the load-bearing platform 2 is improved, reducing the drawbacks of traditional mechanical horizontal rotation relying on hard friction or motor drive, such as system complexity and low reliability.

[0039] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A flat transport beam car comprising a carrying platform (2), a chassis (1) and a power device for driving flat rotation of the carrying platform (2), the carrying platform (2) being provided with a central shaft adapted to the chassis (1), characterized in that, The power unit includes a winch and a flat wheel box (32). The winch is installed on the chassis (1). Multiple flat wheel boxes (32) are evenly distributed around the lower end of the bearing platform (2) with the central axis as the center. The upper surface of the chassis (1) is provided with a track adapted to the flat wheel box (32). The winch is driven to the flat wheel box (32) by traction. Vertical supports (16) are provided on the side wall of the chassis (1). The vertical supports (16) are located on two opposite sides of the chassis (1).

2. The flatbed transport beam car according to claim 1, characterized in that The vertical support (16) is located in the middle of the side wall of the chassis (1).

3. The flatbed transport beam car according to claim 1, characterized in that An auxiliary platform is also provided on the side wall of the chassis (1). The auxiliary platform is located on two opposite sides of the chassis (1), and the vertical support (16) is not on the same side as the auxiliary platform.

4. The flatbed transport beam car according to claim 3, characterized in that The auxiliary platform is equipped with wheel boxes (17) at both ends.

5. The flat transport beam car according to any one of claims 1-4, characterized in that, The carrying platform (2) includes a frame, telescopic beams and telescopic arms. The frame has telescopic arms at both ends in the length direction and two telescopic arms in the width direction of the frame. Each telescopic arm has a telescopic beam installed in it through a drive mechanism. The central shaft and the flat wheel box (32) are located on the frame.

6. The flatbed transport beam car according to claim 5, characterized in that The telescopic arm is a variable diameter structure with one end larger than the other. Its larger diameter end is connected to the frame, and the telescopic beam extends from the smaller diameter end of the telescopic arm.

7. The flat transport beam car according to any one of claims 1-4, characterized in that, The chassis (1) includes at least two first beams spaced apart and at least three second beams spaced apart. The at least two first beams connect the at least three second beams. Vertical supports (16) are provided on the outer surface of the second beams at the ends and on one side surface of the second beams in the middle. The winch is installed between the first beams and the second beams. The track is provided on the upper surface of the first beams and the second beams.

8. The flatbed transport beam car according to claim 7, characterized in that The vertical support (16) includes an upper support, a lower support located below the upper support, and a connecting column connecting the upper support and the lower support. Both the upper support and the lower support are connected to the second beam.

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