A tower crane foundation conversion section

Abstract

This utility model discloses a tower crane foundation conversion section, relating to the field of tower crane technology. It includes a cross-shaped main beam, with support mechanisms installed at each of the four ends of the cross-shaped main beam. A main frame is installed at one end of each support mechanism, and a connecting mechanism is installed at one end of the main frame. The main frame includes two fixed frames, with a vertical plate installed between the two fixed frames. In this utility model, the cross-shaped main beam serves as the bottom load-bearing foundation, bearing the entire load. The supporting diagonal braces are connected by bolts to the first and second mounting plates, distributing the vertical and horizontal loads borne by the main frame to the cross-shaped main beam. Simultaneously, limiting bolts pass through mounting sleeves and connect to the cross-shaped main beam, restricting the relative displacement of the main frame, preventing local stress concentration, improving its rigidity and load-bearing capacity, and dispersing the stress pressure on the local structure.

Description

Technical Field

[0001] This utility model relates to the field of tower crane technology, and in particular to a tower crane foundation conversion joint. Background Technology

[0002] The tower crane foundation transition section, also known as the tower crane foundation transition section, is a core transitional structural component that connects the embedded parts / embedded sections of the tower crane foundation with the standard sections / foundation sections of the tower crane.

[0003] Currently, existing tower crane foundation transfer sections struggle to evenly distribute complex combinations of loads, including vertical loads, horizontal wind loads, and bending moments, across the entire foundation bearing surface when transferring the tower crane's working load. This easily leads to uneven load transfer paths, with excessively high stress in some areas and insufficient load transfer in others, resulting in a significant unbalanced load-bearing phenomenon. This imbalance causes the main force flow to concentrate in a few members or weld areas, creating stress concentration, increasing the risk of local deformation and even structural failure, thus affecting overall safety and durability. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose a tower crane foundation transfer joint to solve the problem that when tower crane foundation transfer joints transmit combined loads such as vertical loads, horizontal wind loads and working bending moments, it is difficult to achieve uniform distribution of loads on the foundation bearing surface, which easily leads to local structural stress concentration, uneven bearing, and even deformation and failure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a tower crane foundation conversion section, including a cross-shaped main beam, and also including a main frame, a support mechanism and a connecting mechanism; The main frame includes two fixed frames arranged vertically, and a vertical plate is installed between the two fixed frames. The vertical plate is fixed at the four corners of the fixed frames respectively. The support mechanism is provided in four groups. Each group of support mechanisms includes a support diagonal rod. The upper end of the support diagonal rod is bolted to the outer side of the vertical plate through a first mounting plate, and its lower end is fixedly connected to the end of the cross-shaped main beam through a second mounting plate. The connecting mechanism is provided in four sets. Each set of connecting mechanisms includes a connecting plate. The lower end of the connecting plate is fixedly connected to the top end of the corresponding vertical plate. The upper end of the connecting plate is provided with mounting ears with mounting holes on both sides for connecting the tower crane standard section.

[0006] Preferably, a cross support frame is fixedly connected to the inner side of the fixed frame, and the four ends of the cross support frame are fixedly connected to the four right corners of the fixed frame.

[0007] Preferably, diagonal bracing plates are fixedly connected between two adjacent vertical plates.

[0008] Preferably, one end of the vertical plate is fixedly connected to an installation sleeve, and a limit bolt is installed in the middle of the installation sleeve. One end of the limit bolt passes through the installation sleeve and is fixedly connected to one side of the cross-shaped main beam.

[0009] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, the cross-shaped main beam serves as the bottom bearing foundation to bear all the loads. The supporting diagonal rods are connected by bolts through the first mounting plate and the second mounting plate, which transmits and disperses the vertical and horizontal loads borne by the main frame to the cross-shaped main beam. At the same time, the limiting bolts pass through the mounting sleeves and are connected to the cross-shaped main beam, which restricts the relative displacement of the main frame, prevents local stress concentration, improves its own rigidity and bearing capacity, and disperses local stress.

[0010] 2. In this utility model, the cross support frame and the diagonal brace plate in the main frame cooperate with each other to enhance the structural rigidity of the fixed frame and prevent the main frame from deforming under load. The limiting bolt passes through the mounting sleeve and connects with the cross-shaped main beam, which restricts the displacement of the main frame relative to the cross-shaped main beam and enhances the overall connection stability of the transition section. Attached Figure Description

[0011] Figure 1 A three-dimensional structural diagram of a tower crane foundation conversion section is provided for this utility model; Figure 2 This utility model provides a schematic diagram of the main frame connection structure of a tower crane foundation conversion section; Figure 3 This utility model provides a schematic diagram of the support mechanism connection structure for a tower crane foundation conversion section; Figure 4 This utility model provides a schematic diagram of the connection structure of the connection mechanism for the tower crane foundation conversion section.

[0012] Legend: 1. Cross-shaped main beam; 2. Support mechanism; 21. First mounting plate; 22. Support diagonal brace; 23. Second mounting plate; 3. Main frame; 31. Fixed frame; 32. Cross support frame; 33. Vertical plate; 34. Diagonal brace plate; 35. Limit bolt; 36. Mounting sleeve; 4. Connecting mechanism; 41. Connecting plate; 42. Mounting ear plate; 43. Mounting hole. Detailed Implementation

[0013] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0014] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0015] Example 1: As Figure 1 - Figure 4 As shown, this utility model provides a tower crane foundation conversion section, including a cross-shaped main beam 1. Support mechanisms 2 are installed at each of the four ends of the cross-shaped main beam 1. A main frame 3 is installed at one end of each support mechanism 2, and a connecting mechanism 4 is installed at one end of the main frame 3. The main frame 3 includes two fixed frames 31, and four vertical plates 33 are installed between the two fixed frames 31. The four vertical plates 33 are respectively fixed at the four corners of the fixed frames 31. The support mechanism 2 includes a first mounting plate 21, one end of which is fixedly connected to the outer side of the vertical plate 33, and the other end of which is open to the outside. A support diagonal rod 22 is fixedly connected by bolts. The other end of the support diagonal rod 22 is fixedly connected to a second mounting plate 23 by bolts. The other end of the second mounting plate 23 is fixedly connected to the end of the cross-shaped main beam 1. A cross support frame 32 is fixedly connected to the inner side of the fixed frame 31. The four ends of the cross support frame 32 are fixedly connected to the four right angles of the fixed frame 31. A diagonal brace 34 is fixedly connected between two adjacent vertical plates 33. An mounting sleeve 36 is fixedly connected to one end of the vertical plate 33. A limit bolt 35 is installed in the middle of the mounting sleeve 36. One end of the limit bolt 35 passes through the mounting sleeve 36 and is fixedly connected to one side of the cross-shaped main beam 1.

[0016] The cross-shaped main beam 1 serves as the bottom bearing foundation of the transfer section, bearing all the loads from above and distributing the loads to the four ends. The supporting diagonal braces 22 are connected by bolts to the first mounting plate 21 and the second mounting plate 23, distributing and transferring the vertical and horizontal loads borne by the main frame 3 to the cross-shaped main beam 1, avoiding local stress concentration, improving its own rigidity and load-bearing capacity, and effectively preventing structural deformation. The cross support frame 32 and the diagonal brace plate 34 inside the main frame 3 cooperate with each other to enhance the structural rigidity of the fixed frame 31 and prevent the main frame 3 from deforming under load. The limiting bolts 35 pass through the mounting sleeve 36 and are connected to the cross-shaped main beam 1, limiting the displacement of the main frame 3 relative to the cross-shaped main beam 1 and enhancing the overall connection stability of the transfer section.

[0017] Example 2: Figure 1 and Figure 4As shown, there are four connecting mechanisms 4, which are fixedly connected to the top of the four vertical plates 33 respectively. Each connecting mechanism 4 includes a connecting plate 41, one end of which is fixedly connected to the top of the vertical plate 33. Mounting ear plates 42 are fixedly connected to both sides of the connecting plate 41. Mounting holes 43 are provided on both mounting ear plates 42.

[0018] The standard tower crane section is connected to the mounting lug 42 by bolts through the mounting holes 43, thus completing the connection between the transition section and the tower crane body. The four connecting mechanisms 4 correspond one-to-one with the four vertical plates 33 of the main frame 3, and have a high degree of interface matching with the standard tower crane section, ensuring the connection between the tower body and the transition section. By connecting with standard tower crane sections of different specifications through bolts, the versatility of the transition section is improved.

[0019] The usage and working principle of this device are as follows: During installation, bolts are used to connect the standard tower crane section to the mounting lug 42 through the mounting holes 43, completing the connection between the transition section and the tower crane body. When the tower crane is working, the combined loads such as vertical load, horizontal wind load, and working bending moment borne by the tower body are transferred to the main frame 3 by the connecting plate 41. Inside the main frame 3, the fixed frame 31, the cross support frame 32, and the diagonal brace 34 together form a rigid three-dimensional frame, effectively distributing the load and preventing its own deformation. Subsequently, the load of the main frame 3 is transferred to the support diagonal rod 22 of the support mechanism 2 through the first mounting plate 21, and the support diagonal rod 22 then distributes the load to the four ends of the cross-shaped main beam 1 through the second mounting plate 23. During this process, the mounting sleeve 36 at the bottom of the vertical plate 33 cooperates with the limiting bolt 35 to limit the relative displacement between the main frame 3 and the cross-shaped main beam 1, ensuring the stability of the force transmission path. Ultimately, the cross-shaped main beam 1 evenly and stably transfers all loads to the concrete foundation below, achieving a balanced distribution of the overall load from the tower to the foundation.

[0020] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A tower crane foundation transition section, comprising a cross-shaped main beam (1), characterized in that: It also includes the main frame (3), the support structure (2) and the connecting structure (4); The main frame (3) includes two fixed frames (31) set at the top and bottom, and a vertical plate (33) is installed between the two fixed frames (31). The vertical plate (33) is fixed at the four corners of the fixed frame (31). The support mechanism (2) is provided in four groups. Each support mechanism (2) includes a support diagonal rod (22). The upper end of the support diagonal rod (22) is bolted to the outer side of the vertical plate (33) through the first mounting plate (21), and its lower end is fixedly connected to the end of the cross-shaped main beam (1) through the second mounting plate (23). The connecting mechanism (4) is provided in four groups. Each group of connecting mechanisms (4) includes a connecting plate (41). The lower end of the connecting plate (41) is fixedly connected to the top end of the corresponding vertical plate (33). The upper end of the connecting plate (41) is provided with mounting ear plates (42) with mounting holes (43) on both sides for connecting the tower crane standard section.

2. A tower crane foundation transition section according to claim 1, characterized in that: The inner side of the fixed frame (31) is fixedly connected to a cross support frame (32), and the four ends of the cross support frame (32) are respectively fixedly connected to the four corners of the fixed frame (31).

3. A tower crane foundation transition section according to claim 1, characterized in that: An inclined brace (34) is fixedly connected between two adjacent vertical plates (33).

4. A tower crane foundation transition section according to claim 1, characterized in that: One end of the vertical plate (33) is fixedly connected to an installation sleeve (36), and a limit bolt (35) is installed in the middle of the installation sleeve (36). One end of the limit bolt (35) passes through the installation sleeve (36) and is fixedly connected to one side of the cross-shaped main beam (1).

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