A hoisting apparatus

Abstract

The utility model provides a kind of hoisting equipment, including two door type towers of side by side arrangement;Door type tower includes two by multiple standard joint column and the beam of being installed on two columns, the lower end of at least one door type tower column opposite side is equipped with the widening column of being set along object transverse direction extension;The inside and outside of widening column and the inside and outside of column flush setting. The utility model can effectively increase the transverse dimension of column, expand its stable area by being set along object transverse direction extension on the lower end of at least one door type tower column opposite side. Such not only enhances the anti-overturning capacity of column itself, also slows down the shaking of object in hoisting effect, to reduce the dependence of tower on cable wind rope in hoisting process, improve construction safety. Improve the technical problem that the multiple cable of existing tower shake reduction scheme needs larger ground anchoring space, seriously limit the application of tower in smaller space.

Description

Technical Field

[0001] This utility model relates to the field of hoisting technology, and specifically to a hoisting device. Background Technology

[0002] With the continuous development of engineering technology, tower cranes are increasingly widely used in hoisting operations. Currently, the commonly used sway reduction solution involves symmetrically arranging multiple guy ropes on both sides of two tower cranes. One end is anchored to the ground, and the other end is connected to the top of the hoisting equipment, forming an oblique tension system. This confines the hoisted object within the stable area formed by the guy ropes, effectively reducing lateral sway caused by wind. However, this traditional solution has significant shortcomings: First, it requires the installation of multiple guy ropes, which not only increases the complexity of on-site assembly but also easily leads to tangling problems due to rope crossing; second, multiple guy ropes require a large ground anchoring space, which is often difficult to implement in confined working environments, severely restricting the application of tower cranes in narrow spaces. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a hoisting device that primarily solves the problem of multiple cables easily becoming entangled due to cable crossing in existing tower sway reduction schemes. At the same time, multiple cables require a large ground anchoring space, which severely limits the application of towers in small spaces.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0005] A hoisting device includes two portal towers arranged side by side, which are used to hoist the same large object together; the portal towers include two columns spliced ​​from multiple standard sections and crossbeams installed on the two columns, and at least one portal tower (1) has symmetrically provided widened columns on opposite sides of the lower end of the columns, which are spliced ​​together along the transverse direction of the object; the inner and outer sides of the widened columns are flush with the inner and outer sides of the columns.

[0006] Furthermore, the top of the widened columns on both sides is provided with a triangular transition column for connecting the upright column and the widened column; and the edge of the triangular transition column is flush with the edge of the widened column.

[0007] Furthermore, the widened column includes multiple standard sections, and both the widened column and the standard section of the column include vertical truss columns located at the four corners of a rectangle, wherein the truss columns are circular tubes.

[0008] Furthermore, the ends of the truss columns of the circular tubes are provided with radial flanges, and the radial flanges of two adjacent circular tubes are connected by circumferentially distributed quick-release bolts, and an elastic sealing gasket is provided between the two radial flanges.

[0009] Furthermore, the standard section also includes diagonal bracing tubes and horizontal cross bracing tubes, both of which are circular tubes; welded fixing plates are provided at the four opposite corners of the rectangular truss column, and the two ends of the diagonal bracing tubes and horizontal cross bracing tubes are positioned by airfoil sleeve joints, with the airfoil end of the airfoil sleeve joint being fixedly connected to the welded fixing plates.

[0010] Furthermore, the standard section is equipped with a platform, and the outer side of the platform is equipped with a railing; the surface of the platform is also equipped with an anti-slip protrusion structure.

[0011] Furthermore, the crossbeam is equipped with an adjustable tensioner.

[0012] Furthermore, the upper side wall of the column is provided with an inclination sensor for detecting the inclination angle of the portal tower.

[0013] Furthermore, an anemometer is installed at the top of the crossbeam.

[0014] Furthermore, the crossbeam is made of S690 high-strength steel.

[0015] The above technical solution has the following advantages or beneficial effects:

[0016] The hoisting equipment described in this utility model effectively increases the lateral dimension of the column and expands its stability area by splicing widened columns extending laterally along the object on opposite sides of the lower end of at least one portal tower column. This structure not only enhances the column's own anti-overturning capacity but also significantly reduces the object's sway during hoisting, thereby reducing the tower's reliance on multiple guy ropes during hoisting and improving construction safety. Furthermore, it addresses the problem of existing tower sway reduction schemes where multiple guy ropes are prone to tangling due to cable crossing, and the fact that multiple guy ropes require a large ground anchoring space, severely limiting the tower's application in confined spaces. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the hoisting equipment of this utility model;

[0018] Figure 2 yes Figure 1 A structural diagram from another perspective;

[0019] Figure 3 yes Figure 1 A magnified view of a section at point A in the middle;

[0020] Label Explanation:

[0021] 1. Portal tower; 11. Column; 12. Beam; 2. Widened column; 2-11. Truss column; 3. Triangular transition column; 4. Platform; 5. Handrail; 6. Inclination sensor; 7. Anemometer; 8. Radial flange; 9. Welded fixing plate; 10. Airfoil sleeve joint; 20. Tensioner. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and 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.

[0024] Please refer to the appendix. Figure 1 To be continued Figure 3 The first embodiment of this utility model provides a hoisting device, including two portal towers 1 arranged side by side, which are used to hoist the same large object. Each portal tower 1 includes two columns 11 spliced ​​from multiple standard sections and a crossbeam 12 installed on the two columns 11. At least one portal tower 1 has symmetrically arranged widened columns 2 extending laterally along the object's direction on opposite sides of the lower end of each column 11. The inner and outer sides of the widened columns 2 are flush with the inner and outer sides of the columns 11, ensuring a neat overall structure while preventing the widened columns 2 from restricting the hoisting operation of the object within the portal tower 1. It can be understood that in this embodiment, by splicing widened columns 2 extending laterally along the object's direction on opposite sides of the lower end of at least one portal tower 1's column 11, the lateral dimension of the columns 11 can be effectively increased, expanding their stable area. This structure not only enhances the overturning resistance of the column 11 itself, but also significantly reduces the swaying of the object during hoisting, thereby reducing the reliance of the tower on multiple guy ropes during hoisting and improving construction safety. Furthermore, it addresses the problem of existing tower sway reduction schemes where multiple guy ropes are prone to tangling due to cable crossing, and the fact that multiple guy ropes require a large ground anchoring space, severely limiting the application of the tower in confined spaces. Simultaneously, since the swaying amplitude of the object at the lower end of the column 11 is usually greater than that at the upper end during the hoisting operation of the portal tower 1, this invention only requires a widened column 2 structure at the lower end of the column 11. This not only increases the stable area of ​​the column 11 but also offers the advantages of cost savings and structural simplification.

[0025] Please refer to the appendix. Figure 1 To be continued Figure 2In one preferred embodiment, the top of the widened columns 2 on both sides is provided with a triangular transition column 3 for connecting the upright column 11 and the widened column 2. Its main function is to optimize force transmission, reduce stress concentration, and improve the overall structural stability and rigidity. Moreover, the edges of the triangular transition column 3 are flush with the edges of the widened column 2, making the overall structure flatter and more aesthetically pleasing.

[0026] Please refer to the appendix. Figure 1 To be continued Figure 2 In one preferred embodiment, the widened column 2 comprises multiple standard sections. Both the widened column 2 and the standard sections of the column 11 include vertical truss columns 2-11 located at the four corners of a rectangle. The truss columns 2-11 are circular tubes. Circular tubes have the same cross-sectional characteristics in all directions, enabling them to uniformly resist loads from different directions (such as wind loads, bending moments and torques caused by hoisting loads), thus avoiding the stress concentration problem at the corners of existing rectangular tubes. Simultaneously, the main frame portion of the triangular transition column 3 is also preferably a circular tube.

[0027] Please refer to the appendix. Figure 3 In one preferred embodiment, radial flanges 8 are provided at the ends of the truss columns 2-11 of the circular tubes, and the radial flanges 8 of two adjacent circular tubes are connected by circumferentially distributed quick-release bolts. The radial flanges 8 provide a uniform bearing surface throughout the circumference, ensuring a continuous and smooth force transmission path and avoiding localized stress concentration. Simultaneously, the circumferentially distributed bolts ensure a uniform distribution of preload, guaranteeing the rigidity and integrity of the connection. Furthermore, an elastic sealing gasket is provided between the two radial flanges 8 to prevent frictional damage between adjacent radial flanges 8 and to ensure tight contact.

[0028] Furthermore, the standard section also includes diagonal bracing tubes and horizontal cross bracing tubes, both of which are circular tubes. Welded fixing plates 9 are installed at the diagonal corners of the rectangular truss columns 2-11. The ends of the diagonal bracing tubes and horizontal cross bracing tubes are positioned by airfoil sleeve joints 10, with the airfoil end of the airfoil sleeve joint 10 fixedly connected to the welded fixing plate 9. The use of airfoil sleeve joints 10 provides a larger contact and bearing surface for the bracing tubes, enabling smoother and more direct transmission of axial force (tension / compression) from the tube to the core area of ​​the connection point, greatly reducing stress concentration caused by the concentration of connecting plates or welds in traditional connection points.

[0029] Please refer to the appendix. Figure 3 In one preferred embodiment, the standard section is provided with a platform 4, the outer side of the platform 4 is provided with a railing 5, and the surface of the platform 4 is also provided with an anti-slip protrusion structure, which provides a safe working place for the staff and prevents the occurrence of safety problems such as slipping, falling and falling.

[0030] Please refer to the appendix. Figure 1 To be continued Figure 2In one preferred embodiment, the crossbeam 12 is equipped with a tensioner 20 powered by a hydraulic pump station. The clamping device inside the tensioner 20 alternately anchors and tensions high-strength steel strands. The enormous tension generated by the steel strands safely and smoothly lifts the heavy object to a predetermined height, achieving balanced force distribution and safe hoisting. Furthermore, a linkage control mechanism is provided between the two portal towers 1. This linkage control mechanism is electrically connected to the tensioners 20 of each portal tower 1, used to synchronously control the tensioners 20 on the crossbeams 12 of the two portal towers 1, thereby ensuring the balance and stability of large objects during hoisting.

[0031] Furthermore, the upper sidewall of the column 11 is equipped with an inclination sensor 6 for detecting the tilt angle of the portal tower 1, to accurately measure the change in tilt angle of the tower body under different working conditions. When the tilt exceeds the safety threshold (e.g., 0.5°), an alarm is immediately triggered to prevent structural instability or overturning due to center of gravity shift. At the same time, the top of the crossbeam 12 is also equipped with an anemometer 7 to collect wind speed and direction data in real time, calculate the direct impact of wind pressure on the tower and the suspended load (e.g., automatic alarm when wind speed exceeds 15m / s), provide a scientific basis for operation, and predict the risk of vortex-induced vibration based on the wind vibration coefficient and the tower dynamic characteristic model (especially for large-span flexible components), indicating whether it is necessary to install auxiliary stabilization devices or suspend operation.

[0032] Preferably, the crossbeam 12 is made of S690 high-strength steel. The yield strength of S690 steel is approximately twice that of ordinary Q355 steel. Under the same load-bearing requirements, the crossbeam 12's cross-sectional dimensions and weight can be reduced by 20%-30%, thereby reducing the overall weight of the tower, the foundation load, and construction costs. It also facilitates transportation and on-site installation, making it particularly suitable for scenarios with limited construction conditions, such as high mountains and offshore locations. However, those skilled in the art should understand that other similar materials can be used for the crossbeam 12 in other embodiments, and this invention does not impose specific limitations.

[0033] However, those skilled in the art should understand that whether the present invention sets a widened column 2 on one of the portal tower 1's columns 11 (i.e., a single-sided no-gland-rope scheme) or sets a widened column 2 on both portal tower 1's columns 11 (i.e., a double-sided no-gland-rope scheme), it is to solve the technical problem that due to the site's proximity to the sea and limited space, it is impossible to install multiple guy ropes or even to install guy ropes at all. Both of these solutions are within the protection scope of this utility model. Furthermore, the hoisting equipment of this utility model further solves a key industry bottleneck—completely breaking the constraints imposed by the layout of guy ropes during the dismantling of old machines and the installation of new machines, and achieving greater optimization in equipment operational stability and operational efficiency, providing the industry with a more flexible and efficient installation solution.

[0034] In summary, this utility model has the following advantages:

[0035] 1. Adapting to site limitations: Most shipyards have limited space, making traditional installation methods with multiple guy ropes and anchor points difficult to adapt. This application solves this problem at its root.

[0036] 2. Improve technical standards: The elimination or reduction of guy ropes and anchor points means that higher requirements are placed on the portal tower itself. Whether it is structural load-bearing capacity, overall strength, or manufacturing process precision, it breaks through the traditional technical bottlenecks.

[0037] 3. Improved dismantling and installation efficiency: The elimination or reduction of guy ropes significantly reduces the constraints imposed by the layout of guy ropes during the dismantling of old machines and the installation of new machines.

[0038] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model. Therefore, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

Claims

1. A hoisting device, characterized in that: It includes two portal towers (1) arranged side by side, which are used to hoist the same large object together; the portal tower (1) includes two columns (11) spliced ​​from multiple standard sections and a crossbeam (12) installed on the two columns (11), and at least one of the portal towers (1) has symmetrically arranged widened columns (2) on opposite sides of the lower end of the columns (11) that extend and splice along the transverse direction of the object; the inner and outer sides of the widened columns (2) are flush with the inner and outer sides of the columns (11).

2. The hoisting equipment according to claim 1, characterized in that: The top of the widened columns (2) on both sides is provided with a triangular transition column (3) for connecting the upright column (11) and the widened column (2); and the edge of the triangular transition column (3) is flush with the edge of the widened column (2).

3. The hoisting equipment according to claim 1, characterized in that: The widened column (2) includes multiple standard sections. The standard sections of the widened column (2) and the column (11) both include vertical truss columns (2-11) at the four corners of the rectangle. The truss columns (2-11) are circular tubes.

4. The hoisting equipment according to claim 3, characterized in that: The ends of the truss columns (2-11) of the circular tube are provided with radial flanges (8). The radial flanges (8) of two adjacent circular tubes are connected by circumferentially distributed quick-release bolts, and an elastic sealing gasket is provided between the two radial flanges (8).

5. The hoisting equipment according to claim 3, characterized in that: The standard section also includes diagonal bracing tubes and horizontal cross bracing tubes, both of which are circular tubes; welding fixing plates (9) are provided at the four opposite corners of the rectangular truss column (2-11), and the two ends of the diagonal bracing tubes and horizontal cross bracing tubes are positioned by airfoil sleeve joints (10), and the airfoil end of the airfoil sleeve joint (10) is fixedly connected to the welding fixing plate (9).

6. The hoisting equipment according to claim 3, characterized in that: The standard section is provided with a platform (4), and the platform (4) is provided with a railing (5) on the outside; the surface of the platform (4) is also provided with an anti-slip protrusion structure.

7. The hoisting equipment according to claim 1, characterized in that: The crossbeam (12) is provided with an adjustable tensioner (20).

8. The hoisting equipment according to claim 1, characterized in that: The upper side wall of the column (11) is provided with an inclination sensor (6) for detecting the inclination angle of the portal tower (1).

9. The hoisting equipment according to claim 1, characterized in that: An anemometer (7) is provided at the top of the crossbeam (12).

10. The hoisting equipment according to claim 1, characterized in that: The crossbeam (12) is made of S690 high-strength steel.

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