Truss hoisting equipment in large-span reticulated shell construction

Abstract

The utility model discloses truss hoisting equipment in large-span reticulated shell construction, which comprises a crane, a lifting hook group is arranged at the tail end of a lifting rope of the crane, mounting racks are arranged on two side walls of the lifting hook group, electric winches are arranged on the mounting racks, and guide wheel components capable of moving in an arc shape are arranged on the inner side walls of the mounting racks; the guide wheel assembly comprises two arc-shaped sliding plates, two guide wheels are rotationally connected between the two arc-shaped sliding plates, and annular grooves are formed in the side walls of the guide wheels. According to the truss hoisting equipment in the large-span reticulated shell construction, through cooperation of the electric capstan and the guide wheel assembly, the effect of adjusting the angle of a truss is achieved by winding and unwinding a steel wire rope with a certain distance through the electric capstan on one side, so that the truss hoisting equipment adapts to different mounting angles, and the flexibility and accuracy in the truss mounting process are improved; the stability and reliability of the steel wire rope on the electric capstan in the rope winding and unwinding process are ensured, and abrasion and shaking of the steel wire rope are reduced.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a truss hoisting device for the construction of large-span reticulated shells. Background Technology

[0002] Large-span reticulated shells are a type of spatial structure typically used in buildings that require covering large spaces, such as stadiums, exhibition halls, and airport terminals. Trusses play a crucial supporting and reinforcing role in large-span reticulated shell structures, and during construction, they need to be hoisted to their designed positions using lifting equipment for installation.

[0003] Current hoisting equipment typically uses cranes in conjunction with slings and hooks to lift trusses assembled on the ground. However, the current hoisting process involves securing multiple slings to the truss and then attaching all the slings to the hook together. As a result, the truss is lifted at a fixed angle, making it difficult to adjust the installation angle of the truss according to requirements. Utility Model Content

[0004] To address the technical problems existing in the background art, this utility model proposes a truss hoisting device for the construction of large-span reticulated shells, which has the effect of adjusting the angle of the hoisting truss according to the installation requirements.

[0005] This utility model provides a truss hoisting device for the construction of large-span reticulated shells, including a crane. The end of the crane's hoisting rope is provided with a hook assembly. Both sides of the hook assembly are provided with mounting frames. An electric winch is provided on the mounting frame. The inner side wall of the mounting frame is provided with a guide wheel assembly that can move in an arc.

[0006] The guide wheel assembly includes two arc-shaped sliding plates, and two guide wheels are rotatably connected between the two arc-shaped sliding plates. The sidewalls of the guide wheels are provided with annular grooves.

[0007] Preferably, the hook assembly includes an outer casing, the inner side of which is provided with a pulley connected to a lifting rope, and the bottom of the inner wall of the outer casing is provided with a crossbeam, on which a first hook is provided.

[0008] Preferably, the mounting bracket includes a fixing plate that forms the side wall of the outer casing. Two symmetrically arranged extension support plates are fixedly connected to the side of the fixing plate away from the outer casing. The extension support plates have arc-shaped sliding holes inside.

[0009] Preferably, a sliding column is fixedly connected to the side of the arc-shaped sliding plate away from the guide wheel. The sliding column is slidably connected inside the arc-shaped sliding hole. A limiting block is fixedly connected to the side of the sliding column away from the arc-shaped sliding plate. The limiting block contacts the outer wall of the extension support plate.

[0010] Preferably, a gap is left between the upper and lower guide wheels, and the end of the wire rope on the electric winch extends out of the mounting frame through the gap between the two guide wheels, and a second hook is fixedly connected to the end of the wire rope.

[0011] Preferably, the side of the extension support plate away from the fixed plate has an arc-shaped structure, and the electric winch is located between the guide wheel assembly and the fixed plate.

[0012] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects: by cooperating with the electric winch and guide wheel assembly, the electric winch on one side can raise and lower a steel wire rope over a certain distance to adjust the angle of the truss, thereby adapting to different installation angles and improving the flexibility and accuracy of the truss installation process. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram of a truss hoisting device for the construction of a large-span reticulated shell, as proposed in this utility model.

[0014] Figure 2 This is an enlarged view of the hook assembly proposed in this utility model.

[0015] Figure 3 This is an enlarged view of the structure of the mounting bracket, electric winch, and guide wheel assembly proposed in this utility model.

[0016] Figure 4 This is a schematic diagram of the guide wheel assembly proposed in this utility model.

[0017] Reference numerals: 1. Crane; 2. Hook assembly; 21. Outer casing; 22. Pulley assembly; 23. First hook; 3. Mounting bracket; 31. Fixing plate; 32. Extension support plate; 33. Arc-shaped sliding hole; 4. Electric winch; 5. Guide wheel assembly; 51. Arc-shaped sliding plate; 52. Guide wheel; 53. Annular groove; 54. Sliding column; 55. Limiting block; 6. Second hook. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0019] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, such as welding, riveting, or bonding; it can also be a detachable connection, such as threaded connection, keyed connection, or pin connection; or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] like Figure 1-4 As shown, the present invention proposes a truss hoisting device for the construction of a large-span reticulated shell, including a crane 1, a hook assembly 2 at the end of the hoisting rope of the crane 1, mounting frames 3 on both sides of the hook assembly 2, an electric winch 4 on the mounting frame 3, and a guide wheel assembly 5 that can move in an arc on the inner side wall of the mounting frame 3.

[0022] The guide wheel assembly 5 includes two arc-shaped sliding plates 51, and two guide wheels 52 are rotatably connected between the two arc-shaped sliding plates 51. The side wall of the guide wheel 52 is provided with an annular groove 53, and a gap is left between the upper and lower guide wheels 52. The end of the wire rope on the electric winch 4 passes through the gap between the two guide wheels 52 and extends out of the mounting frame 3. The end of the wire rope is fixedly connected to a second hook 6.

[0023] The electric winch 4 is equipped with a clutch to control the disengagement and locking of the drum from the transmission system. By operating the clutch, the drum can be made to spin freely or locked with the transmission system, thereby realizing the winding and unwinding of the rope. The electric winch 4 is also equipped with a remote control system, which allows the operator to remotely control the operation of the winch via a wireless remote control.

[0024] It should be noted that, through the cooperation of the electric winch 4 and the guide wheel assembly 5, the electric winch 4 on one side can raise and lower a steel wire rope over a certain distance to adjust the angle of the truss, thereby adapting to different installation angles and improving the flexibility and precision of the truss installation process.

[0025] Please see Figure 2 In this embodiment, the hook assembly 2 includes an outer casing 21, with a pulley 22 connected to the lifting rope on the inner side of the outer casing 21, and a crossbeam at the bottom of the inner wall of the outer casing 21, on which a first hook 23 is provided.

[0026] Please see Figure 2 , Figure 3 In this embodiment, the mounting frame 3 includes a fixing plate 31 that sets the side wall of the outer cover 21. Two symmetrically arranged extension support plates 32 are fixedly connected to the side of the fixing plate 31 away from the outer cover 21. The extension support plates 32 have arc-shaped sliding holes 33 inside. The side of the extension support plates 32 away from the fixing plate 31 has an arc-shaped structure. The electric winch 4 is located between the guide wheel assembly 5 and the fixing plate 31.

[0027] It should be noted that the extension support plate 32 can better adapt to the arc-shaped movement of the guide wheel assembly 5, improve the coordination and stability of the overall structure, and the guide wheel 52 can be adjusted in position according to the different included angles formed by the different fixed suspension points between the hoisting belt and the truss on both sides of the second hook 6.

[0028] In this embodiment, a sliding column 54 is fixedly connected to the side of the arc-shaped sliding plate 51 away from the guide wheel 52. The sliding column 54 is slidably connected inside the arc-shaped sliding hole 33. A limiting block 55 is fixedly connected to the side of the sliding column 54 away from the arc-shaped sliding plate 51. The limiting block 55 is in contact with the outer wall of the extension support plate 32.

[0029] It is worth mentioning that the design of the guide wheel assembly 5 and the limit block 55 ensures the stability and reliability of the wire rope on the electric winch 4 during rope winding and unwinding, and reduces the wear and sway of the wire rope.

[0030] Working principle: During the hoisting process, after multiple hoisting straps are fixed to the truss on the ground through the rings, the hoisting strap at the center position is hung on the first hook 23. Then, the hoisting straps on both sides (not shown in the figure) are hung on the second hooks 6 on both sides respectively. Then, the truss can be lifted by the crane 1. If it is necessary to adjust the tilt angle of the truss, the electric winch 4 on one side is controlled by the wireless remote control matched with the electric winch 4 to release the rope to a certain distance, and the tilt angle of the truss can be adjusted according to the installation requirements.

[0031] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A truss hoisting device in large-span latticed shell construction, comprising a crane (1), a hook group (2) is arranged at the end of the hoisting rope of the crane (1), mounting racks (3) are arranged on the two side walls of the hook group (2), characterized in that, The mounting frame (3) is provided with an electric winch (4), and an arc-shaped movable guide wheel assembly (5) is arranged on the inner side wall of the mounting frame (3); The guide wheel assembly (5) comprises two arc-shaped sliding plates (51), two guide wheels (52) are rotatably connected between the two arc-shaped sliding plates (51), and a ring-shaped groove (53) is formed in the side wall of the guide wheel (52).

2. The truss hoisting device in the construction of a large-span lattice shell according to claim 1, characterized in that: The hook group (2) comprises an outer cover (21), a pulley piece (22) connected with a lifting rope is arranged on the inner side of the outer cover (21), a cross beam is arranged on the bottom of the inner side wall of the outer cover (21), and a first hook (23) is arranged on the cross beam.

3. The truss hoisting device in the construction of a large-span lattice shell according to claim 2, characterized in that: The mounting frame (3) comprises a fixed plate (31) arranged on the side wall of the outer cover (21), two symmetrically arranged extension support plates (32) are fixedly connected to the side of the fixed plate (31) away from the outer cover (21), and an arc-shaped sliding hole (33) is formed in the inner portion of the extension support plate (32).

4. The truss hoisting device in the construction of a large-span lattice shell according to claim 3, characterized in that: The arc-shaped sliding plate (51) is fixedly connected with a sliding column (54) on the side away from the guide wheel (52), the sliding column (54) is slidably connected in the arc-shaped sliding hole (33), the sliding column (54) is fixedly connected with a limiting block (55) on the side away from the arc-shaped sliding plate (51), and the limiting block (55) is in contact with the outer side wall of the extension support plate (32).

5. The truss hoisting device in the construction of a large-span lattice shell according to claim 1, characterized in that: A gap is formed between the two guide wheels (52), the end of a steel wire rope on the electric winch (4) extends out of the mounting frame (3) through the gap between the two guide wheels (52), and the end of the steel wire rope is fixedly connected with a second hook (6).

6. The truss hoisting device in the construction of a large-span lattice shell according to claim 3, characterized in that: The side of the extension support plate (32) away from the fixed plate (31) is in an arc-shaped structure, and the electric winch (4) is located between the guide wheel assembly (5) and the fixed plate (31).

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