Tower crane A-shaped frame and tower crane

Abstract

The utility model relates to the technical field of building machinery, and discloses a tower crane A-shaped frame and a tower crane. The tower crane A-shaped frame comprises a supporting rod assembly which comprises two supporting rod frames, one ends of the two supporting rod frames are connected in a pivoted mode, and the other ends of the two supporting rod frames are arranged away from the flaring. The auxiliary stringing mechanism comprises an auxiliary rope, a rope winding body for winding and unwinding the auxiliary rope and a connecting base, and the rope winding body is detachably installed on one of the two supporting rod frames through the connecting base. The tower crane comprises the A-shaped frame of the tower crane. According to the A-shaped frame of the tower crane, the auxiliary rope penetrating mechanism is directly arranged on any supporting rod frame in the supporting rod assembly, so that the auxiliary rope penetrating mechanism and the supporting rod assembly can be transported together in a transition mode, the transition transportation operation efficiency of the tower crane can be improved, and the manufacturing cost is reduced.

Description

Technical Field

[0001] This application belongs to the technical field of construction machinery. Specifically, it relates to a tower crane A-frame and a tower crane. Background Art

[0002] A tower crane is a commonly used lifting device at construction sites. A tower crane generally includes a tower crane A-frame, a luffing rope, a boom, and a counterweight B. The luffing rope is arranged on the tower crane A-frame, and the boom is swung by the traction of the luffing rope to lift heavy objects. Since the diameter of the luffing rope is large, it is very laborious to operate at high altitudes, and the high-altitude operation is extremely dangerous. Generally, an auxiliary rope threading mechanism 700 uses a towing rope to tow the luffing rope and arrange the luffing rope on the tower crane A-frame.

[0003] However, as Figure 1 shown, the existing auxiliary rope threading mechanism is generally fixed on the counterweight B of the tower crane through a mounting frame. Not only does it require the separate manufacture of the mounting frame I, increasing the production cost; during the transfer transportation process, the counterweight B, the mounting frame I, and the auxiliary rope threading mechanism 700 need to be transported separately, and they still need to be assembled again after being transported to the construction site. The transportation process is cumbersome and the operation efficiency is low. Summary of the Utility Model

[0004] The purpose of this application is to provide a tower crane A-frame and a tower crane to improve the transfer transportation operation efficiency of the tower crane and reduce the manufacturing cost.

[0005] To achieve the above purpose, on the one hand, this application provides a tower crane A-frame, which includes:

[0006] A strut assembly, including two strut frames, one end of the two strut frames is pivotally connected, and the other end is flared away from each other;

[0007] An auxiliary rope threading mechanism, including an auxiliary rope, a rope winding body for winding and unwinding the auxiliary rope, and a connecting seat. The rope winding body is detachably installed on one of the two strut frames through the connecting seat.

[0008] In some embodiments, the connecting seat is a frame structure, and the auxiliary rope threading mechanism further includes:

[0009] A drum, which is received in the connecting seat and is rotatably connected to the two side walls of the connecting seat, and the auxiliary rope is wound around the drum;

[0010] A rotation driving mechanism, which is installed on the outer peripheral wall of the connecting seat and is drivingly connected to the drum. The rotation driving mechanism is used to drive the drum to rotate to wind and unwind the auxiliary rope.

[0011] In some embodiments, a mounting seat is provided on the strut frame, and a plurality of first ear plates are provided on the mounting seat. The connecting seat includes:

[0012] Connecting frame, within which the drum is received;

[0013] A plurality of second ear plates are provided on the side of the connecting frame facing the mounting base. The second ear plates correspond to the first ear plates one by one and are connected by fasteners.

[0014] In some embodiments, the connecting frame includes two side plates arranged in parallel at intervals and two connecting rods connected between the two side plates. The two connecting rods are respectively located on the upper and lower sides of the drum, and the second ear plates are all provided on the side plates.

[0015] In some embodiments, the strut frame includes a first strut and a second strut. The first strut and the second strut extend in opposite directions respectively from the pivot connection point between the two strut frames, and the mounting base is connected between the first strut and the second strut.

[0016] In some embodiments, the mounting base further includes a cross beam and a strut seat arranged at intervals up and down. A plurality of first ear plates are provided on both the cross beam and the strut seat.

[0017] In some embodiments, the strut seat is a rod-shaped structure and is arranged parallel to the cross beam.

[0018] In some embodiments, the plurality of second ear plates are respectively arranged near the upper end and the lower end of the connecting frame. The plurality of second ear plates located at the upper end are connected to the first ear plates on the cross beam, and the plurality of second ear plates located at the lower end are connected to the first ear plates on the strut seat.

[0019] In some embodiments, the A-frame of the tower crane further includes a diagonal strut arranged parallel to the vertical plane. The first end of the diagonal strut is connected to the strut seat on one strut frame, and the second end of the diagonal strut is connected to the other strut frame.

[0020] On the other hand, this application protects a tower crane, which includes the above-mentioned A-frame of the tower crane.

[0021] In the technical solution of this application, by directly arranging the auxiliary rope threading mechanism on any one of the strut assemblies, the auxiliary rope threading mechanism can be transported during the transfer together with the strut assembly. Compared with the prior art, where the counterweight of the tower crane, the mounting frame, and the auxiliary rope threading mechanism need to be transported separately and assembled at the construction site, the A-frame of the tower crane in this application does not need to repeatedly disassemble the auxiliary rope threading mechanism, and the auxiliary rope threading mechanism can be transported during the transfer together with the strut assembly, simplifying the operation process and improving the transfer transportation operation efficiency of the tower crane. In addition, there is no need to manufacture an additional mounting frame, which also reduces the manufacturing cost.

[0022] Other features and advantages of the embodiments of this application will be described in detail in the subsequent specific embodiment part. Brief Description of the Drawings

[0023] The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the embodiments of the present application, but do not constitute a limitation to the embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained based on the structures shown in these drawings without creative efforts. In the drawings:

[0024] Figure 1 is a schematic structural view of the tower crane A-frame according to the prior art;

[0025] Figure 2 is a schematic structural view of the tower crane A-frame according to the specific embodiment of the present application;

[0026] Figure 3 is Figure 2 a partial enlarged view of the A position in

[0027] Description of reference numerals

[0028] F Bracing rod assembly 620 First ear plate

[0029] I Mounting frame 700 Auxiliary rope threading mechanism

[0030] B Counterweight 710 Connecting seat

[0031] 100 Bracing rod frame 711 Second ear plate

[0032] 110 First bracing rod 720 Drum

[0033] 120 Second bracing rod 730 Rotary drive mechanism

[0034] 300 Bracing rod seat 740 Side plate

[0035] 500 Diagonal bracing rod 750 Connecting rod

[0036] 610 Cross beam Specific embodiments

[0037] The following is a detailed description of the specific embodiments of the present application in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present application and are not used to limit the present application.

[0038] The tower crane A-frame and tower crane according to the present application will be described below with reference to the accompanying drawings.

[0039] The present application discloses a novel tower crane A-frame, as Figure 2 shown, the tower crane A-frame includes:

[0040] The strut assembly F includes two strut frames 100. One end of the two strut frames 100 is pivotally connected, and the other ends are flared away from each other.

[0041] The auxiliary rope threading mechanism 700 includes an auxiliary rope (not shown in the figure), a rope winding body for winding and unwinding the auxiliary rope, and a connecting seat 710. The rope winding body is detachably mounted on one of the two strut frames 100 through the connecting seat 710.

[0042] Specifically, referring to Figure 2 , the strut assembly F includes a rear strut frame and a front strut frame. By directly arranging the auxiliary rope threading mechanism 700 on the rear strut frame in the strut assembly F, the auxiliary rope threading mechanism 700 can be transported during the transfer together with the strut assembly F. In the prior art, as Figure 1 shown, an installation frame I is provided on the counterweight B of the tower crane, and the auxiliary rope threading mechanism 700 is fixed on the counterweight B through the installation frame I. Before the transfer transportation, it is necessary to separately transport the tower crane counterweight B, the installation frame I, and the auxiliary rope threading mechanism 700. After arriving at the construction site, assembly is carried out again, which is very cumbersome. Compared with the prior art, the auxiliary rope threading mechanism 700 of the present application can be transported during the transfer together with the strut assembly F, without the need to additionally manufacture the installation frame I, nor the need for repeated disassembly and assembly, which not only reduces the manufacturing cost, but also simplifies the transfer operation process and improves the operation efficiency.

[0043] Among them, the auxiliary rope threading mechanism 700 is not limited to being directly arranged on the rear strut frame in the strut assembly F, and can also be directly arranged on the front strut frame in the strut assembly F.

[0044] In this embodiment, as Figure 2 shown, the connecting seat 710 is of a frame structure, and the auxiliary rope threading mechanism 700 further includes:

[0045] A drum 720, which is housed in the connecting seat 710 and is rotatably connected to the two side walls of the connecting seat 710, and the auxiliary rope is wound around the drum 720;

[0046] A rotary drive mechanism 730, which is installed on the outer peripheral wall of the connecting seat 710 and is drivingly connected to the drum 720. The rotary drive mechanism 730 is used to drive the drum 720 to rotate to wind and unwind the auxiliary rope.

[0047] Specifically, referring to Figure 2 , with such a setting, the structure is compact, simple, convenient to operate, and is conducive to the stable winding and unwinding of the auxiliary rope.

[0048] In this embodiment, as Figure 2 and Figure 3 shown, the strut frame 100 is provided with a mounting seat, and the mounting seat is provided with a plurality of first ear plates 620. The connecting seat 710 includes:

[0049] Connecting frame, the drum 720 is received within the connecting frame;

[0050] A plurality of second ear plates 711 are provided on one side of the connecting frame facing the mounting seat. The second ear plates 711 correspond to the first ear plates 620 one by one and are connected by fasteners.

[0051] See Figure 2 and Figure 3 , the auxiliary rope threading mechanism 700 is detachably connected to the strut frame 100 through the first ear plate 620 at the rear side of the mounting seat. Specifically, the auxiliary rope threading mechanism 700 is provided with second ear plates 711. The second ear plates 711 correspond to the first ear plates 620 one by one, and the second ear plates 711 and the second ear plates 711 are connected through fasteners. With such a setting, the disassembly and assembly are rapid, the structure is simple, and it is easy to process.

[0052] In this embodiment, as Figure 2 and Figure 3 shown, the connecting frame includes two side plates 740 arranged in parallel at intervals and two connecting rods 750 connected between the two side plates 740. The two connecting rods 750 are respectively located on the upper and lower sides of the drum 720, and the second ear plates 711 are all provided on the side plates 740.

[0053] Specifically, see Figure 2 and Figure 3 , after connecting the side plates 740 through the two connecting rods 750, the connecting seat 710 forms a frame structure, which can improve the structural strength of the connecting frame, thereby improving the reliability of the auxiliary rope threading mechanism 700.

[0054] In this embodiment, as Figure 2 shown, the strut frame 100 includes a first strut 110 and a second strut 120. The first strut 110 and the second strut 120 extend from the pivot connection point between the two strut frames 100 in opposite directions respectively, and the mounting seat is connected between the first strut 110 and the second strut 120.

[0055] Specifically, see Figure 2 , in order to ensure the stability of the installation of the strut frame 100, the first strut 110 and the second strut 120 extend downward in a flared shape (i.e., in a spindle shape); on the basis of improving the stability of the strut frame 100, setting the mounting seat between the first strut 110 and the second strut 120 is beneficial to improving the overall compactness and reducing the storage space required for transfer operations.

[0056] The mounting seat connected between the first strut 110 and the second strut 120 can be designed in various forms. In this embodiment, as Figure 2 shown, the mounting seat further includes a cross beam 610 and a strut seat 300 arranged at intervals up and down. A plurality of first ear plates 620 are provided on both the cross beam 610 and the strut seat 300.

[0057] Specifically, referring to Figure 2 , the connecting seat 710 can be detachably connected to the cross beam 610 and the strut seat 300 through the first ear plate 620. One end of the cross beam 610 is connected to the first strut 110, and the other end is connected to the second strut 120. With such a setting, the cross beam 610 can not only be used to fix the auxiliary rope threading mechanism 700, but also strengthen the structural strength of the strut frame 100. In addition, the auxiliary rope threading mechanism 700 being connected to the cross beam 610 and the strut seat 300 at intervals up and down is beneficial to ensuring the stable installation of the auxiliary rope threading mechanism 700 on the strut frame 100.

[0058] In this embodiment, as Figure 2 shown, the strut seat 300 is in a rod-shaped structure and is arranged parallel to the cross beam 610.

[0059] Specifically, referring to Figure 2 , one end of the strut seat 300 is connected to the first strut 110, and the other end is connected to the second strut 120. The rod-shaped structure of the strut seat 300 makes the structure of the strut seat 300 simple, and the parallel arrangement of the strut seat 300 and the cross beam 610 is beneficial to the docking of the connecting seat 710 of the auxiliary rope threading mechanism 700 with the mounting seat. The strut seat 300 can also strengthen the structural strength of the strut frame 100.

[0060] Combining the design of the cross beam 610 and the strut seat 300 can enable the mounting seat and the connecting seat 710 to have multiple docking methods. In this embodiment, as Figure 2 shown, a plurality of second ear plates 711 are respectively arranged near the upper end and the lower end of the connecting frame. The plurality of second ear plates 711 located at the upper end are connected to the first ear plate 620 on the cross beam 610, and the plurality of second ear plates 711 located at the lower end are connected to the first ear plate 620 on the strut seat 300.

[0061] Specifically, referring to Figure 2 , with such a setting, the connection between the connecting seat 710 and the mounting seat is stable, easy to disassemble and assemble, and easy to process.

[0062] The strut frame 100 can not only be used to strengthen the structural strength of the strut frame 100 and the installation of the connecting seat 710. In this embodiment, as Figure 2 and Figure 3 shown, the tower crane A-frame further includes a diagonal strut 500 arranged parallel to the vertical plane. The first end of the diagonal strut 500 is connected to the strut seat 300 on one strut frame 100, and the second end of the diagonal strut 500 is connected to another strut frame 100.

[0063] The first end of the diagonal brace 500 is connected to the front brace frame, and the second end is connected to the rear brace provided. While strengthening the structural strength of the reinforcing brace assembly F, the angular relationship between the front brace frame and the rear brace frame can be restricted. When the brace frame 100 of the brace assembly F is fusiform, when aligning the front brace frame and the rear brace frame with the diagonal brace 500, the alignment benchmarks in the height and lateral directions need to be considered. Specifically, refer to Figure 2 , after introducing the brace seat 300, the installation position of the diagonal brace 500 is more flexible. It is only necessary to consider aligning the diagonal brace 500 with the front brace frame or the brace seat 300 in the height direction, without considering aligning the diagonal brace 500 with the front brace frame or the brace seat 300 in the lateral direction. Therefore, the introduction of the brace seat 300 can also facilitate the installation of the diagonal brace 500.

[0064] This application discloses a new type of tower crane, which includes the above-mentioned A-frame of the tower crane.

[0065] Specifically, refer to Figure 2 , a fixed pulley block is provided at the top of the A-frame of the tower crane. The fixed pulley block forms a pulley system with the movable pulley block of the luffing rope (not shown in the figure) and the luffing tie rod (not shown in the figure). Taking the fixed pulley block as the force application point, the luffing rope is wound and released, and then the luffing movement of the boom (not shown in the figure) is realized. Since the diameter of the luffing rope is large, it is very laborious to operate at high altitude, and the danger of operating at high altitude is extremely high. Therefore, the auxiliary rope of the auxiliary rope-passing structure can be connected to the luffing rope. After the auxiliary rope bypasses the fixed pulley block, the luffing rope can be towed and arranged on the A-frame of the tower crane. A buffer extending forward is provided in the middle of the front brace frame. An elastic part is provided at the front end of the buffer, and the elastic part is used to abut against the boom so that the luffing movement of the boom can be buffered within a certain angle range.

[0066] In addition, this tower crane has all the technical effects brought by the above-mentioned A-frame of the tower crane, which will not be elaborated here.

[0067] In the description of this application, it should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of this application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0068] In this application, unless otherwise clearly specified or limited, the terms "installed", "connected", "connected to", "fixed", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0069] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

Claims

1. Tower crane A-frame, characterized in that, The tower crane A-frame includes: A strut assembly (F), including two strut frames (100), one end of the two strut frames (100) is pivotally connected, and the other ends are flared away from each other; An auxiliary rope threading mechanism (700), including an auxiliary rope, a rope winding body for winding and unwinding the auxiliary rope, and a connecting seat (710). The rope winding body is detachably mounted on one of the two strut frames (100) through the connecting seat (710).

2. The A-frame of the tower crane according to claim 1, characterized in that, The connecting seat (710) has a frame structure, and the auxiliary rope threading mechanism (700) further includes: A drum (720), housed in the connecting seat (710) and rotatably connected to the two side walls of the connecting seat (710). The auxiliary rope is wound around the drum (720); A rotation driving mechanism (730), mounted on the outer peripheral wall of the connecting seat (710) and drivingly connected to the drum (720). The rotation driving mechanism (730) is used to drive the drum (720) to rotate to wind and unwind the auxiliary rope.

3. The tower crane A-frame according to claim 2, characterized in that, An installation seat is provided on the strut frame (100), and a plurality of first ear plates (620) are provided on the installation seat. The connecting seat (710) includes: A connecting frame, and the drum (720) is housed in the connecting frame; A plurality of second ear plates (711), provided on the side of the connecting frame facing the installation seat. The second ear plates (711) and the first ear plates (620) are in one-to-one correspondence and are connected by fasteners.

4. The A-frame of the tower crane according to claim 3, characterized in that, The connecting frame includes two side plates (740) arranged in parallel and spaced apart, and two connecting rods (750) connected between the two side plates (740). The two connecting rods (750) are respectively located on the upper and lower sides of the drum (720), and the second ear plates (711) are all provided on the side plates (740).

5. The A-frame of the tower crane according to claim 3 or 4, characterized in that, The strut frame (100) includes a first strut (110) and a second strut (120). The first strut (110) and the second strut (120) extend in opposite directions from the pivot connection point between the two strut frames (100), and the installation seat is connected between the first strut (110) and the second strut (120).

6. The A-frame of the tower crane according to claim 5, characterized in that The installation seat further includes a cross beam (610) and a strut seat (300) arranged at intervals up and down. A plurality of the first ear plates (620) are provided on both the cross beam (610) and the strut seat (300).

7. The A-frame of the tower crane according to claim 6, characterized in that, The strut seat (300) has a rod-like structure and is arranged parallel to the cross beam (610).

8. The A-frame of the tower crane according to claim 6, characterized in that A plurality of the second ear plates (711) are respectively arranged near the upper end and the lower end of the connecting frame. The plurality of second ear plates (711) located at the upper end are connected to the first ear plates (620) on the cross beam (610), and the plurality of second ear plates (711) located at the lower end are connected to the first ear plates (620) on the strut seat (300).

9. The A-frame of the tower crane according to claim 6, characterized in that, The A-frame of the tower crane further includes a diagonal brace (500) arranged parallel to the vertical plane. The first end of the diagonal brace (500) is connected to the brace seat (300) on one of the brace frames (100), and the second end of the diagonal brace (500) is connected to the other brace frame (100).

10. Tower crane, characterized in that, The tower crane includes the A-frame of the tower crane according to any one of claims 1 to 9.

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