Assembled transition section structure of tower crane

Abstract

The utility model discloses an assembled transition section structure of a tower crane, which comprises a transition section left half frame, a transition section right half frame, an upper main chord member, a lower main chord member and an external cross beam, and the transition section left half frame and the transition section right half frame are spliced to form a transition section integral frame; the upper main chord member is welded on the upper plane of the transition section integral frame and is provided with an upper rib plate; the lower main chord member is welded on the lower plane of the transition section integral frame and is provided with a lower rib plate; the extension support plate is arranged on the side face of the transition section overall frame, the upper portion of the externally-hung cross beam is welded to the extension support plate, the whole transition section is of an assembled structure, the structure is simple, the transition section is formed by splicing the two transition section half frames, transportation is convenient, and mounting and dismounting are convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of tower cranes, and particularly relates to a splicing type transition section structure of a tower crane. Background Art

[0002] The transition section is an important component in the process of jacking and adding sections of a tower crane, and is respectively connected to the slewing and the tower body of the tower crane up and down. In the prior art, the transition section of the tower crane is mostly of an integral structure, which is not convenient for disassembly, and occupies a large space during transportation, resulting in high transportation costs or even inability to transport. Therefore, it is necessary to design a splicing type transition section structure of a tower crane, which divides the transition section into two half frames for easy transportation and convenient installation and disassembly. Content of the Utility Model

[0003] To solve the above technical problems, the utility model provides a splicing type transition section structure of a tower crane, which is of an overall splicing type structure, simple in structure, and is formed by splicing two half frames of the transition section, so as to be convenient for transportation and convenient for installation and disassembly.

[0004] The utility model adopts the following technical solutions:

[0005] A splicing type transition section structure of a tower crane includes a left half frame of the transition section, a right half frame of the transition section, an upper chord member, a lower chord member and an external hanging cross beam. The left half frame and the right half frame of the transition section are spliced to form an overall frame of the transition section; the upper chord member is welded on the upper plane of the overall frame of the transition section and is provided with upper stiffening plates; the lower chord member is welded on the lower plane of the overall frame of the transition section and is provided with lower stiffening plates; an extension support plate is arranged on the side surface of the overall frame of the transition section, and the upper part of the external hanging cross beam is welded to the extension support plate.

[0006] Preferably, the external hanging cross beam is arranged outside the overall frame of the transition section and is parallel to the long beam of the overall frame of the transition section.

[0007] Preferably, the upper chord member of the transition section is connected to the main chord member of the lower support, the lower chord member is connected to the main chord member of the tower body section, and the external hanging cross beam is connected to the slewing frame.

[0008] Preferably, both the left half frame and the right half frame of the transition section include a long beam and two short beams, and diagonal braces are arranged between the long beam and the short beams.

[0009] Preferably, both the left half frame and the right half frame of the transition section are provided with screw hole plate connection end faces at the ends.

[0010] Preferably, a guiding pin shaft is arranged on the screw hole plate connection end face of the left half frame of the transition section, and a guiding hole matching with the guiding pin shaft is arranged on the screw hole plate connection end face of the right half frame of the transition section.

[0011] Preferably, the overall structure of the external hanging cross beam is in the form of a rectangular frame, and the connecting seat at the lower end is composed of two ear plates.

[0012] Compared with the prior art, the utility model has the following advantages: The utility model provides a assembled transition section structure for a tower crane, which includes a left half frame of the transition section, a right half frame of the transition section, an upper main chord, a lower main chord, and an external hanging cross beam. The left half frame and the right half frame of the transition section are spliced to form an overall frame of the transition section. The overall structure is an assembled structure, which is simple and is composed of two half frames of the transition section, so as to facilitate transportation and is convenient for installation and disassembly. Description of the Drawings

[0013] Figure 1 It is the front view of the assembled transition section described in the utility model;

[0014] Figure 2 is Figure 1 the enlarged schematic view of the partial A at the external hanging cross beam in

[0015] Figure 3 the connection schematic view of the transition section during use;

[0016] Figure 4 It is the top view of the left half frame of the transition section described in the utility model;

[0017] Figure 5 is Figure 4 the view in the B direction of the screw hole plate in

[0018] Figure 6 It is the front view of the external hanging cross beam described in the utility model.

[0019] In the figure, the left half frame of the transition section 1; the right half frame of the transition section 2; the upper main chord 3; the lower main chord 4; the external hanging cross beam 5; the long beam of the half frame 11; the short beam 12; the diagonal brace 13; the connection end face 14; the guide pin shaft 15; the extended support plate 16; the stiffening plate of the upper main chord 31; the stiffening plate of the lower main chord 41; the ear plate of the external hanging cross beam 51. Detailed Embodiment

[0020] In order to facilitate the understanding of the technical solution of the utility model, the following is a detailed description in combination with the drawings and specific embodiments.

[0021] Embodiment 1

[0022] An assembled transition section structure for a tower crane includes a left half frame 1 of the transition section, a right half frame 2 of the transition section, an upper main chord 3, a lower main chord 4, and an external hanging cross beam 5.

[0023] As Figure 1As shown in the figure, the overall framework of the transition section is composed of the left half-frame 1 of the transition section and the right half-frame 2 of the transition section. The left half-frame 1 of the transition section and the right half-frame 2 of the transition section are detachably connected and can be disassembled during transportation or storage.

[0024] The upper chord 3 is welded to the upper planes of the left half-frame 1 and the right half-frame 2 of the transition section and has upper stiffening plates 31;

[0025] The lower chord 4 is welded to the lower planes of the left half-frame 1 and the right half-frame 2 of the transition section and has lower stiffening plates 41.

[0026] The external hanging cross beam 5 is arranged on the outside of the transition section and is parallel to the long beam of the transition half-frame.

[0027] As Figure 3 shown, when the transition section structure is installed and used, the upper chord 3 is connected to the chord of the lower support, the lower chord 4 is connected to the chord of the tower section, and the external hanging cross beam 5 is connected to the sleeve.

[0028] As Figure 4 shown, the overall structures of the left half-frame 1 and the right half-frame 2 of the transition section are basically the same. Taking the left half-frame 1 of the transition section as an example, it is composed of a long beam 11 in the shape of a rectangular frame and two short beams 12. Diagonal braces 13 are provided between the long beam 11 and the short beams 12, and the above structures are welded into an integral body. Each of the left half-frame 1 and the right half-frame 2 of the transition section is provided with two screw hole plate connection end faces 14. When the transition section is assembled, the screw hole plate connection end faces 14 are butted in pairs.

[0029] As Figure 5 shown, among the two transition half-frames, only a guiding pin shaft 15 is welded at the center of the screw hole plate connection end face 14 of the left half-frame 1 of the transition section. Except for the guiding pin shaft 15, the structures of the two half-frames are the same. During assembly, the guiding pin shaft 15 is inserted into the guiding hole of the screw hole plate connection end face 14 of the right half-frame 2 of the transition section, which can effectively assist in positioning. After accurate positioning, the connection end faces 14 are butted in pairs through bolts and are firmly connected.

[0030] As Figure 2 shown, the upper part of the external hanging cross beam 5 is welded to the extension support plate 16 of the transition section.

[0031] As Figure 6 shown, the overall structure of the external hanging cross beam 5 is in the form of a rectangular frame, and the lower connecting seat is composed of two ear plates 51 and can be connected to the sleeve.

[0032] It can be seen from the above description that the assembled transition section structure of the tower crane of the present utility model is simple in structure, clear in force, convenient and fast in installation and disassembly, can effectively reduce the space occupation during transportation, reduce the transportation cost, and at the same time avoid the problem that the transition section structure is too large to be transported.

[0033] The above are only the preferred embodiments of the present utility model. The protection scope of the present utility model shall be subject to the scope defined by the claims. Several improvements and modifications made by those skilled in the art without departing from the spirit and scope of the present utility model shall also be regarded as within the protection scope of the present utility model.

Claims

1. An assembled transition section structure for a tower crane, characterized in that, It includes the left half frame (1) of the transition section, the right half frame (2) of the transition section, the upper chord (3), the lower chord (4) and the external hanging cross beam (5). The left half frame (1) and the right half frame (2) of the transition section are spliced to form the overall frame of the transition section. The upper chord (3) is welded on the upper plane of the overall frame of the transition section and has an upper stiffening plate (31). The lower chord (4) is welded on the lower plane of the overall frame of the transition section and has a lower stiffening plate (41). An extension support plate (16) is provided on the side of the overall frame of the transition section, and the upper part of the external hanging cross beam (5) is welded to the extension support plate (16).

2. The assembled transition section structure of the tower crane according to claim 1, characterized in that, The external hanging cross beam (5) is arranged outside the overall frame of the transition section and is parallel to the long beam of the overall frame of the transition section.

3. The assembled transition section structure of the tower crane according to claim 1, characterized in that, The upper chord (3) of the transition section is connected to the main chord of the lower support, the lower chord (4) is connected to the main chord of the tower body section, and the external hanging cross beam (5) is connected to the sleeve.

4. The assembled transition section structure of the tower crane according to claim 1, characterized in that Both the left half frame (1) and the right half frame (2) of the transition section include a long beam (11) and two short beams (12), and a diagonal brace (13) is provided between the long beam (11) and the short beam (12).

5. The assembled transition section structure of the tower crane according to claim 1, characterized in that, Both ends of the left half frame (1) and the right half frame (2) of the transition section are provided with a connecting end face (14) of the screw hole plate.

6. The assembled transition section structure of the tower crane according to claim 4, characterized in that, A guide pin shaft (15) is provided on the connecting end face (14) of the screw hole plate of the left half frame (1) of the transition section, and a guide hole matching the guide pin shaft (15) is provided on the connecting end face (14) of the screw hole plate of the right half frame (2) of the transition section.

7. The assembled transition section structure of the tower crane according to claim 4, characterized in that, The overall structure of the external hanging cross beam (5) is in the form of a rectangular frame, and the connecting seat at the lower end is composed of two ear plates (51).

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