Steel truss girder jig frame device integrating pre-splicing and turning-over functions

Abstract

The utility model discloses a steel truss girder jig frame device integrating pre-splicing and turning-over functions, which belongs to the technical field of jig frame devices and comprises a pre-splicing jig frame, a track structure arranged on one side of the pre-splicing jig frame, a turning-over wheel mounted on the track structure in a rolling manner and a limiting component. The turnover wheel is formed by cutting 1 / 4 area of a round wheel through the circle center, and the cut part forms a right-angle matching opening used for being matched with the lower edge of the steel member. The turning-over wheel is connected with a turning-over wheel fixing shaft, the pre-splicing jig frame is provided with a jig frame fixing shaft, and the two ends of the limiting assembly are hinged to the turning-over wheel fixing shaft and the jig frame fixing shaft respectively. In the initial state, the right-angle matching opening of the turning-over wheel is attached to one side of the pre-splicing jig frame, and the bottom face of the turning-over wheel is flush with the top face of the pre-splicing jig frame. When the turning-over wheel rolls forwards to the limited position, the right-angle matching opening is turned over by 90 degrees relative to the initial position. The turnover device can effectively solve the problems that in the horizontal pre-splicing construction process of the steel truss bridge, steel members are difficult to turn over, and collision is prone to being caused in the turnover process.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of jig frame device, especially to a steel truss jig frame device integrating pre-assembly and turning-over functions. BACKGROUND

[0002] In bridge engineering, the steel truss bridge horizontal pre-assembly process can not only effectively improve the construction efficiency and reduce the risk of high-altitude operation, but also ensure the accurate butt joint of bridge components and improve the overall engineering quality. Therefore, the steel truss bridge horizontal assembly process has been widely used in various bridge engineering. However, the steel truss bridge horizontal pre-assembly still faces many challenges in the actual construction process. The steel components assembled on the pre-assembly jig frame need to be hoisted horizontally to the ground for turning-over to prevent damage to the steel components coating by the jig frame, which seriously affects the construction efficiency. At the same time, due to the complex structure and large volume of the steel truss, the stability during the turning-over process is difficult to control, and the steel components will rotate and swing in the air after leaving the assembly jig frame. Therefore, in view of the difficulties in the turning-over operation of the steel truss bridge, an innovative technical solution is urgently needed to ensure the safety and efficiency of the operation process and protect the integrity of the steel structure components. SUMMARY

[0003] The utility model provides a steel truss jig frame device integrating pre-assembly and turning-over functions to solve the problems of difficult turning-over of steel components and collision during the turning-over process in the steel truss bridge horizontal pre-assembly construction process.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] A steel truss jig frame device integrating pre-assembly and turning-over functions, comprising a pre-assembly jig frame, a track structure arranged on one side of the pre-assembly jig frame, a turning-over wheel rolling installed on the track structure, and a limiting assembly connected with the pre-assembly jig frame and the turning-over wheel.

[0006] The turning-over wheel is formed by cutting 1 / 4 area of a circular wheel through the center, and the cut part forms a right-angle matching port for matching the lower edge of the steel component. The axis of the turning-over wheel is horizontally arranged and perpendicular to the length direction of the track structure. The turning-over wheel is connected with a turning-over wheel fixing shaft, which is vertically arranged on both sides of the turning-over wheel and parallel to the axis of the turning-over wheel. The front surface of the pre-assembly jig frame is provided with a jig frame fixing shaft, which is parallel to the turning-over wheel fixing shaft.

[0007] The limiting assembly comprises a first limiting rod, a second limiting rod and a third limiting rod; the front end of the turning wheel fixing shaft is hinged to one end of the first limiting rod through a bearing, the other end of the first limiting rod is hinged to one end of the second limiting rod through a bearing, the other end of the second limiting rod is hinged to one end of the third limiting rod through a bearing, the other end of the third limiting rod is hinged to the front end of the cradle fixing shaft through a bearing, and the axes of all the bearings are arranged in parallel with the axes of the turning wheel fixing shaft and the cradle fixing shaft;

[0008] In the initial state, one side of the right-angle fitting port of the turning wheel is attached to one side of the pre-assembled cradle, and the bottom surface of the right-angle fitting port is arranged in flush with the top surface of the pre-assembled cradle, the turning wheel fixing shaft is located directly below the center of the turning wheel, the turning wheel fixing shaft and the cradle fixing shaft are located at the same horizontal height, the second limiting rod is located below the turning wheel fixing shaft and the cradle fixing shaft and is arranged in parallel with the length direction of the track structure; when the turning wheel rolls forward to the limited position, the right-angle fitting port is turned by 90 degrees relative to the initial position.

[0009] Further, the track structure comprises a plurality of track slots arranged side by side, and the plurality of track slots are fixedly connected together, the turning wheels are circular steel plate structures, and a plurality of turning wheels are arranged in the plurality of track slots and are arranged at intervals, and all the turning wheels are connected with the turning wheel fixing shaft.

[0010] Further, the track slot comprises a channel steel and two track baffles, one end of the channel steel is fixedly connected with the pre-assembled cradle, and the other end is fixed to the ground through bolts; the two track baffles are arranged at intervals on the opposite sides in the channel steel to form a rolling track for the turning wheel to roll through; the channel steels of adjacent two track slots are fixedly welded.

[0011] Further, the thickness of the track baffle is 0.5-1.5 cm, the length is the same as that of the channel steel, and the height is 15-25 cm.

[0012] Further, the length of the channel steel is at least twice the diameter of the turning wheel.

[0013] Further, the number of the turning wheels is 4-8.

[0014] Further, the distance between adjacent two turning wheels is 15-25 cm.

[0015] Further, the thickness of the turning wheel is 0.5-1.5 cm.

[0016] Further, the distance between the turning wheel fixing shaft and the center of the turning wheel is 1 / 5-1 / 3 of the radius of the turning wheel.

[0017] Further, the turnover wheel fixing shaft, the first limiting rod, the second limiting rod, the third limiting rod and the jig fixing shaft are all round steel, and the diameter of the round steel is 1.5-2.5 cm.

[0018] By adopting the technical scheme, the utility model has the following beneficial effects:

[0019] 1. The steel truss jig device integrates assembling and turnover functions, and can meet the needs of stability, bearing capacity and reliability in structural design, has small space occupation, is convenient to construct, and improves the efficiency and safety of steel member turnover construction.

[0020] 2. The utility model has the functions of convenient movement and reusability, is convenient to operate and adjust, is practical and economical, integrates the pre-assembled jig and the turnover wheel, can move the pre-assembled jig and the turnover wheel as a whole to adjust the plane position in each pre-assembled wheel, avoids material waste, and saves construction time. BRIEF DESCRIPTION OF DRAWINGS

[0021] Fig. 1 The utility model discloses a steel truss jig device structure schematic view;

[0022] Fig. 2 The utility model discloses a steel truss jig device use schematic view;

[0023] In the drawing, the mark is: 1-pre-assembled jig, 2-slotted steel, 3-rail baffle, 4-rolling track, 5-turnover wheel, 6-right angle cooperation mouth, 7-turnover wheel fixing shaft, 8-first limiting rod, 9-second limiting, 10-third limiting rod, 11-jig fixing shaft, 12-bearing, 13-steel member lower edge. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0025] EMBODIMENT

[0026] As Figs. 1-2 shown, a steel truss jig device integrating pre-assembling and turnover functions includes a pre-assembled jig 1, a track structure arranged on one side of the pre-assembled jig 1, a turnover wheel 5 rolling mounted on the track structure and a limiting assembly connected with the pre-assembled jig 1 and the turnover wheel 5.

[0027] The track structure comprises a plurality of track grooves arranged side by side, in this embodiment, six track grooves are arranged, and the six track grooves are fixedly connected together. The track groove comprises a channel steel 2 and two track baffles 3. One end of the channel steel 2 is fixedly connected with the pre-assembled tire frame 1, and the other end is fixed to the ground through bolts. The two track baffles 3 are arranged at opposite sides in the channel steel 3, forming a rolling track 4 for the rolling of the turnover wheel 5. The track baffles 3 serve to limit the lateral displacement of the turnover wheel 5. The channel steels 2 of adjacent two track grooves are fixedly welded.

[0028] Specifically, the thickness of the track baffle 3 is 0.5-1.5 cm, the length is the same as the length of the channel steel 2, the height is 15-25 cm, and the length of the channel steel 2 is at least twice the diameter of the turnover wheel. In this embodiment, the thickness of the track baffle 3 is 1.0 cm, the height is 20 cm, and the length of the channel steel 2 is twice the diameter of the turnover wheel.

[0029] The turnover wheel 5 is formed by cutting 1 / 4 area of a circular wheel at the center, and the cut part forms a right-angled fitting port 6 for fitting the lower edge 13 of the steel member. The axis of the turnover wheel 5 is arranged horizontally and perpendicular to the length direction of the track structure. The turnover wheel 5 is connected with a turnover wheel fixing shaft 7, the turnover wheel fixing shaft 7 is vertically arranged through the front and back surfaces of the turnover wheel 5, and is arranged parallel to the axis of the turnover wheel 5.

[0030] Specifically, the distance between the turnover wheel fixing shaft 7 and the center of the turnover wheel is 1 / 5-1 / 3 of the radius of the turnover wheel, in this embodiment, the distance is 1 / 4 of the radius of the turnover wheel 5.

[0031] The front surface of the pre-assembled tire frame 1 is provided with a tire frame fixing shaft 11, which is arranged parallel to the turnover wheel fixing shaft 7. The tire frame fixing shaft 11 is anchored at the lower part of the front surface of the tire frame and is poured together with the pre-assembled tire frame 1, and the turnover wheel fixing shaft 7 is fixedly welded with the turnover wheel 5.

[0032] The turnover wheel 5 is a circular steel plate structure, and a plurality of turnover wheels 5 are arranged, preferably 4-8. In this embodiment, six turnover wheels 5 are arranged. The plurality of turnover wheels 5 jointly act to increase the contact area with the steel member and improve the overall stability of the turnover mechanism. The six turnover wheels 5 are arranged in the six track grooves and are arranged at intervals, and all the turnover wheels 5 are connected with the turnover wheel fixing shaft 7. The thickness of the turnover wheel 5 is 0.5-1.5 cm, and the distance between the adjacent two turnover wheels 5 is 15-25 cm. In this embodiment, the thickness of the turnover wheel 5 is 1.0 cm, and the distance between the adjacent two turnover wheels 5 is 20 cm.

[0033] The limiting assembly comprises a first limiting rod 8, a second limiting rod 9 and a third limiting rod 10. The front end of the turnover wheel fixing shaft 7 is hinged to one end of the first limiting rod 8 through a bearing 12, the other end of the first limiting rod 8 is hinged to one end of the second limiting rod 9 through a bearing 12, the other end of the second limiting rod 9 is hinged to one end of the third limiting rod 10 through a bearing 12, the other end of the third limiting rod 10 is hinged to the front end of the jig fixing shaft 11 through a bearing 12, and the axes of all the bearings 12 are arranged in parallel with the axes of the turnover wheel fixing shaft 7 and the jig fixing shaft 11.

[0034] In the embodiment, the diameters of the round steels are 2.0 cm.

[0035] In the initial state, one side of the right-angle fitting port of the turnover wheel 5 is attached to one side of the pre-assembled jig 1, the bottom surface of the right-angle fitting port 6 is arranged in parallel with the top surface of the pre-assembled jig 1, the turnover wheel fixing shaft 7 is located directly below the center of the turnover wheel, the turnover wheel fixing shaft 7 and the jig fixing shaft 11 are located at the same horizontal height, the second limiting rod 9 is located below the turnover wheel fixing shaft 7 and the jig fixing shaft 11 and is arranged in parallel with the length direction of the track structure, and when the turnover wheel 5 rolls forward to the limited position, the right-angle fitting port 6 is turned by 90 degrees relative to the initial position.

[0036] When the steel member is assembled on the pre-assembled jig 1 and turned over, the lower edge 13 of the steel member is pressed on the right-angle fitting ports 6 of the six turnover wheels 5, the turnover wheels 5 are rolled forward along the track grooves under the pressure, and the turnover wheels 5 stop rolling and keep a certain distance from the pre-assembled jig when reaching the limited position, so that the turnover operation of the steel member is completed. When the turnover of the steel member is completed, the right-angle fitting ports 6 of the turnover wheels 5 face outward and away from the pre-assembled jig, and the turnover wheels 5 are limited by the three limiting rods and stop rolling, so that the turnover process of the steel structure is limited, the safety of the horizontal pre-assembled turnover operation of the steel structure is improved, and the turnover efficiency of the steel structure is effectively improved.

[0037] The steel truss jig device has the functions of assembly and turnover, has stable stability, bearing capacity and reliability in the structural design, occupies small space, is convenient to construct, and improves the efficiency and safety of the turnover construction of the steel member.

[0038] The pre-assembled jig 1 and the turnover wheels 5 are connected into an integrated whole, the pre-assembled jig 1 and the turnover wheels 5 can be integrally moved to adjust the planar position in each pre-assembled wheel time, material waste is avoided, and construction time is saved.

[0039] As a preferred mode, the turning wheel 5 is cut into a circle by taking a square steel plate as an incircle, and then 1 / 4 of the circle is cut off, the square steel plate is 1.0 cm thick, the side length is 0.7 times the sum of the height of the preloading tire frame and the lower edge 13 of the steel member, the turning wheel 5 is holed below the center of the circle at 1 / 4 radius of the center of the circle, the hole diameter is 2.0 cm, six turning wheels 5 are integrated by inserting a round steel with a diameter of 2.0 cm and welding and fixing it. The highest point of the turning wheel 5 is above the midline of the lower edge 13 of the steel member. In the process of turning over the steel member, the turning wheel 5 slowly rolls, the right angle matching port 6 near the preloading tire frame side gradually rises, which can limit and block the steel member, effectively avoiding the problem that the member directly collides with the tire frame.

[0040] The above description is a detailed description of the preferred and feasible embodiments of the utility model, but the embodiments are not used to limit the patent application range of the utility model, and any equivalent changes or modified changes completed under the technical spirit of the utility model should belong to the patent range covered by the utility model.

Claims

1. A steel truss girder frame device integrating pre-assembly and turning functions, comprising a pre-assembly frame, characterized in that: It also includes a track structure set on one side of the pre-assembled tire frame, a turning wheel that is rolled on the track structure, and a limiting component connected to the pre-assembled tire frame and the turning wheel; The turning wheel is formed by cutting off 1 / 4 of its area from the center of a circular wheel, with the cut-off portion forming a right-angle mating opening for mates with the lower edge of the steel component; the axis of the turning wheel is horizontally set and perpendicular to the length direction of the track structure; the turning wheel is connected to a turning wheel fixing shaft, which passes vertically through both sides of the turning wheel and is parallel to the axis of the turning wheel; the front of the pre-assembled frame is provided with a frame fixing shaft, which is parallel to the turning wheel fixing shaft; The limiting assembly includes a first limiting rod, a second limiting rod, and a third limiting rod; the front end of the turning wheel fixing shaft is hinged to one end of the first limiting rod via a bearing, the other end of the first limiting rod is hinged to one end of the second limiting rod via a bearing, the other end of the second limiting rod is hinged to one end of the third limiting rod via a bearing, and the other end of the third limiting rod is hinged to the front end of the tire frame fixing shaft via a bearing; the axes of all bearings are parallel to the axes of the turning wheel fixing shaft and the tire frame fixing shaft. In the initial state, one side of the right-angle mating joint of the turning wheel is attached to one side of the pre-assembled tire frame, and the bottom surface of the right-angle mating joint is flush with the top surface of the pre-assembled tire frame. The turning wheel fixing shaft is located directly below the center of the turning wheel, and the turning wheel fixing shaft and the tire frame fixing shaft are at the same horizontal height. The second limiting rod is located below the turning wheel fixing shaft and the tire frame fixing shaft, and is parallel to the length direction of the track structure. When the turning wheel rolls forward to the restricted position, the right-angle mating joint is rotated 90 degrees relative to the initial position.

2. The steel truss girder frame device integrating pre-assembly and turning functions according to claim 1, characterized in that: The track structure includes several track grooves arranged side by side, which are fixedly connected together. The turning wheel is a circular steel plate structure, and several turning wheels are provided. The turning wheels are respectively set in the several track grooves and spaced apart. All turning wheels are connected to the fixed shaft of the turning wheel.

3. The steel truss girder frame device integrating pre-assembly and turning functions according to claim 2, characterized in that: The track groove includes a channel steel and two track baffles. One end of the channel steel is fixedly connected to the pre-assembled jig frame, and the other end is fixed to the ground by bolts. The two track baffles are spaced apart on opposite sides inside the channel steel to form a rolling track for the turning wheel to roll through. The channel steel of two adjacent track grooves is welded and fixed together.

4. The steel truss girder frame device integrating pre-assembly and turning functions according to claim 3, characterized in that: The track baffle has a thickness of 0.5-1.5cm, a length the same as the channel steel, and a height of 15-25cm.

5. A steel truss girder formwork device integrating pre-assembly and turning functions as described in claim 4, characterized in that: The length of the channel steel is at least twice the diameter of the turning wheel.

6. The steel truss girder frame device integrating pre-assembly and turning functions according to claim 2, characterized in that: The number of turning wheels is 4-8.

7. A steel truss girder frame device integrating pre-assembly and turning functions as described in claim 6, characterized in that: The distance between two adjacent turning wheels is 15-25cm.

8. A steel truss girder frame device integrating pre-assembly and turning functions as described in claim 7, characterized in that: The thickness of the turning wheel is 0.5-1.5cm.

9. A steel truss girder formwork device integrating pre-assembly and turning functions as described in claim 8, characterized in that: The distance between the fixed shaft of the turning wheel and the center of the turning wheel is 1 / 5 to 1 / 3 of the radius of the turning wheel.

10. A steel truss girder formwork device integrating pre-assembly and turning functions according to claim 1, characterized in that: The turning wheel fixing shaft, the first limiting rod, the second limiting rod, the third limiting rod, and the tire frame fixing shaft are all made of round steel with a diameter of 1.5-2.5cm.

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