Three-point four-rod type tower crane overhanging attachment
Through the cantilever attachment of three-point four-bar tower crane, the stress distribution of irregular tower body structure is optimized, and the construction difficulty and cost problems of two-point four-bar cantilever attachment on irregular towers are solved, achieving the improvement of stability and construction efficiency.
Patent Information
- Application Number
- CN202422056402.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-23
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-08-23
AI Technical Summary
In the prior art, two-point four-bar cantilevers are attached to irregular tower body structures and are difficult to disperse the stress, resulting in high construction costs and high difficulty, and are not suitable for irregular tower body structures.
The three-point four-bar tower crane cantilever attachment is adopted. By setting up multiple attachment frames, attachment arms, mounting seats, connecting rods and attachment ear seats, the force distribution is optimized, the median connecting rods are added to share the internal force of the outer pull rod, and the cantilever system is used to bear the bearing reaction force, reducing component size and cost.
It has achieved improved stability in irregular tower body structure, reduced construction difficulty and cost, optimized stress distribution, improved construction efficiency, and ensured the overall stability of the tower crane.
Smart Images
Figure CN223188829U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tower crane installation, in particular to a three-point four-rod tower crane cantilever attachment. Background Art
[0002] Tower crane, also known as tower crane, refers to a rotating crane with a boom mounted on the top of a tall tower. It is used to lift construction materials such as steel bars, wooden slats, concrete, steel pipes, etc. Tower crane is an indispensable equipment on the construction site.
[0003] When in use, a tower crane requires a stable foundation as a support for installation. For example, in the construction of an irregular bridge tower, a cantilever tower crane attachment is required to ensure the stability of the tower crane's foundation. In the existing technology, a two-point four-rod cantilever attachment is generally used. The cantilever has to bear the combined force generated by two pull rods on one side, so the size of the cantilever system will increase accordingly, which will increase the material cost and weight of the cantilever attachment construction, and the construction difficulty will also increase accordingly. Therefore, a three-point four-rod tower crane cantilever attachment is proposed to solve the above problems. Utility Model Content
[0004] In order to solve the above technical problems, the utility model proposes a three-point four-rod tower crane cantilever attachment, which can optimize the structural stress, achieve higher structural stability, and is more suitable for the suspension attachment construction of irregular tower structures.
[0005] The technical solution for achieving the purpose of the utility model is: a three-point four-rod tower crane cantilever attachment, comprising a plurality of attachment frames arranged on the tower body, the four end points of the attachment frames are rotatably connected to attachment arms, the attachment arms at the two end points on the same side are rotatably connected to the mounting base at one end away from the attachment frame, the inner walls of the mounting base are rotatably connected to two high-position connecting rods respectively, the bottom end of the mounting base is rotatably connected to a low-position connecting base, a low-position connecting rod is arranged on the low-position connecting base, the attachment arms at the two end points close to the building are rotatably connected to the middle connecting rod, the high-position connecting rod, the low-position connecting rod and the middle connecting rod are all provided with attachment ear seats at one end close to the building, and a number of climbing cones are arranged on the attachment ear seats.
[0006] In some embodiments, there are multiple attachment frames that are evenly distributed along the vertical direction of the tower body, and the attachment frames are fixed to the tower body by bolts.
[0007] In some embodiments, there are two median connecting rods, and the two median connecting rods are connected to the attachment ear seat at one end close to the building.
[0008] Compared with the prior art, the present invention has the following significant advantages:
[0009] The utility model provides two middle connecting rods, which are directly pulled onto the tower column. This reduces the internal force of the outer tie rods, and the support reaction force is borne by the cantilever system. The force of the entire structure is more reasonable, the cantilever design will not be too large, the cost is not very high, and the installation difficulty is not great. Compared with the traditional two-point four-rod type, this device has an additional attachment ear seat, and during construction, only the corresponding climbing cone position needs to be pre-buried, but the stability can be greatly improved.
[0010] The utility model is suitable for irregular tower structures; the cantilever + pull rod combination rod setting optimizes the force distribution system, greatly reduces the size of the cantilever component, reduces the investment cost of the attached component, and has stable and reliable support, convenient installation, improves the attachment construction efficiency of the irregular structure system tower crane, and ensures the overall stability of the tower crane.
[0011] It solves the problem that the two-point four-bar cantilever attachment is difficult to disperse the force and install when encountering an irregular tower structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] The present invention will be further explained below with reference to the accompanying drawings and embodiments:
[0013] Figure 1 This is a schematic structural diagram of a tower crane main body (top view) provided in one embodiment of the present invention;
[0014] Figure 2 This is a schematic structural diagram of a tower crane body (side view) provided in one embodiment of the present invention;
[0015] Figure 3 This is a schematic structural diagram of an attachment body (top view) provided in one embodiment of the present invention;
[0016] Figure 4 This is a schematic structural diagram of a connecting seat (front view) provided in one embodiment of the present invention.
[0017] Description of reference numerals:
[0018] 1. Attachment frame; 2. Attachment arm; 3. Mounting seat; 4. High-position connecting rod; 5. Low-position connecting seat; 6. Low-position connecting rod; 7. Middle-position connecting rod; 8. Attachment ear seat; 9. Climbing cone. DETAILED DESCRIPTION
[0019] The following is a detailed description of the present invention, clearly and completely describing the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0020] The utility model provides a three-point four-rod tower crane cantilever attachment through improvement. The technical solution of the utility model is:
[0021] like Figure 1 As shown, a three-point four-rod tower crane cantilever attachment includes a plurality of attachment frames 1 arranged on the tower body, the four end points of the attachment frame 1 are rotatably connected to the attachment arms 2, the attachment arms 2 at the two end points on the same side are rotatably connected to the ends of the attachment frames 1 away from the attachment frames 1, the inner walls of the mounting seats 3 are rotatably connected to two high-position connecting rods 4 respectively, the bottom ends of the mounting seats 3 are rotatably connected to the low-position connecting seats 5, and the low-position connecting seats 5 are provided with a low-position connecting rod 6, the attachment arms 2 at the two end points close to the building are rotatably connected to the middle connecting rod 7, the high-position connecting rod 4, the low-position connecting rod 6 and the middle connecting rod 7 are all provided with attachment ear seats 8 at the ends close to the building, and a number of climbing cones 9 are provided on the attachment ear seats 8.
[0022] like Figure 2-Figure 4 As shown, in one embodiment, there are multiple attachment frames 1 and they are evenly distributed along the vertical direction of the tower body. The attachment frames 1 are fixed to the tower body by bolts. The attachment frames 1 are connected to each connecting rod by bolts, and the length of each connecting rod can be adapted according to requirements.
[0023] In one embodiment, there are two median connecting rods 7, and the two median connecting rods 7 are connected to the attachment ear seat 8 at one end close to the building. Compared with the traditional two-point four-rod cantilever attachment, this device only has one more attachment ear seat 8 and a matching climbing cone 9, but can achieve a better stabilization effect. At the same time, it will not cause any difficulties during construction and has strong practicality.
[0024] The specific working method is: when the three-point four-rod tower crane is used for cantilever attachment, after fixing the attachment frame 1 to the tower body, fix the position of the climbing cone 9 one by one, and install the entire cantilever attachment on the building to complete the installation. The two middle connecting rods 7 are directly pulled onto the tower column, so that the internal force of the outer pull rod is smaller, and the support reaction force is borne by the cantilever system. The force of the entire structure is relatively reasonable. The cantilever + pull rod combination rod setting optimizes the force distribution system, greatly reduces the size of the cantilever component, reduces the investment cost of the attachment component, and the support is stable and reliable, easy to install, improves the construction efficiency of the tower crane attachment in the irregular structure system, and ensures the overall stability of the tower crane.
[0025] The technical means disclosed in the present invention are not limited to the technical means disclosed in the above technical means, but also include technical solutions composed of equivalent replacements of the above technical features. Matters not covered in the present invention belong to the common knowledge of those skilled in the art.
Claims
1. A three-point four-rod tower crane cantilever attachment, comprising a plurality of attachment frames (1) arranged on a tower body, characterized in that: The four end points of the attachment frame (1) are all rotatably connected to the attachment arms (2); the ends of the attachment arms (2) at the two end points on the same side away from the attachment frame (1) are rotatably connected to the mounting base (3); the inner walls of the mounting base (3) are respectively rotatably connected to two high-position connecting rods (4); the bottom end of the mounting base (3) is rotatably connected to a low-position connecting base (5); a low-position connecting rod (6) is provided on the low-position connecting base (5); the attachment arms (2) at the two end points close to the building are all rotatably connected to the middle-position connecting rod (7); the ends of the high-position connecting rod (4), the low-position connecting rod (6) and the middle-position connecting rod (7) close to the building are all provided with attachment ear seats (8); and the attachment ear seats (8) are provided with a plurality of climbing cones (9).
2. The three-point four-rod tower crane cantilever attachment according to claim 1, characterized in that: The attachment frames (1) are evenly distributed along the vertical direction of the tower body, and the attachment frames (1) are fixed to the tower body by bolts.
3. The three-point four-rod tower crane cantilever attachment according to claim 1, characterized in that: There are two middle connecting rods (7), and one end of the two middle connecting rods (7) close to the building is connected to the attachment ear seat (8) together.