Adjustable tower crane standard knot introduction trolley

Abstract

The utility model discloses an adjustable tower crane standard knot introduction trolley which comprises two trolley main beams, two end connecting cross beams and two lifting lug connecting cross beams are arranged between the two trolley main beams, the two trolley main beams are respectively provided with a trolley adjustable wheel set, the two trolley adjustable wheel sets are symmetrically distributed, and the two lifting lug connecting cross beams are arranged on the trolley main beams. The trolley adjustable wheel set has the advantages that operation and adjustment are convenient, the trolley adjustable wheel set is suitable for various tower crane types (not including lower introduction platform type tower cranes), a large tower and a small tower are both considered, and the trolley adjustable wheel set is suitable for large tower cranes and small tower cranes, so that the trolley adjustable wheel set is suitable for large tower cranes and small tower cranes, and the trolley adjustable wheel set is suitable for large tower cranes and small tower cranes. Particularly, when tower cranes of multiple specifications of the same manufacturer are purchased, due to the inheritance of the design concept of the tower cranes, the number of standard knot introduction trolleys can be reduced, great convenience is brought to construction site managers and tower crane mounting and dismounting personnel, and the construction site mounting and dismounting personnel and the managers hope to solve but are not solved all the time.

Description

Technical Field

[0001] The utility model relates to the technical field of tower cranes, and specifically relates to an adjustable trolley for introducing standard tower crane sections. Background Art

[0002] The trolley for introducing standard tower crane sections is indispensable during the operation of lifting and lowering the tower crane (adding or removing standard tower crane sections). Usually, tower crane manufacturers match one type of trolley for introducing standard tower crane sections for one specification or tower cranes with similar lifting ton-meters. If there are a large number of tower cranes at a construction site (tower cranes with different lifting tonnages from the same manufacturer or tower cranes with similar specifications from different manufacturers), a large number of specifications and models of trolleys for introducing standard tower crane sections are required. This brings a lot of inconveniences to the management and use of tower cranes. When tower crane installation and disassembly personnel are performing the operation of lifting and lowering the tower, they need to select the appropriate trolley from a large number of trolleys for introducing standard tower crane sections, which is likely to confuse the trolleys for introducing standard tower crane sections and delay the time for lifting and lowering the tower, thus easily causing low work efficiency for management and installation and disassembly personnel. For this reason, management and construction site installation and disassembly personnel have always hoped to solve these problems of easy confusion and low efficiency. An adjustable trolley for introducing standard tower crane sections can solve these problems. An adjustable trolley for introducing standard tower crane sections is convenient to operate and adjust on the construction site, does not pick the type of tower crane (excluding tower cranes with a lower introduction platform type), and follows the principle of taking both large and small towers into account, which can solve many problems brought by the management and construction during the lifting and lowering of the tower crane. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide an adjustable trolley for introducing standard tower crane sections, which can effectively solve the problems in the prior art.

[0004] The technical solution adopted by the present utility model is as follows: An adjustable trolley for introducing the standard section of a tower crane, which includes two main trolley beams. There are two end connection cross beams and two ear connection cross beams between the two main trolley beams. A trolley adjustable wheel set is respectively arranged on each of the two main trolley beams, and the two trolley adjustable wheel sets are symmetrically distributed. A trolley ear is arranged on the ear connection cross beam between the two trolley adjustable wheel sets. A guide plate is also respectively arranged on the two main trolley beams. The main trolley beam is composed of an outer sleeve square steel pipe and two inner sleeve square steel pipes. The two inner sleeve square steel pipes are respectively located inside the two ends of the outer sleeve square steel pipe and can move back and forth inside the outer sleeve square steel pipe. Inner sleeve square steel pipe guide grooves are opened at the inner sleeve square steel pipe, through bolt holes matching the inner sleeve square steel pipe guide grooves are opened at the outer sleeve square steel pipe, and locking bolt holes matching the inner sleeve square steel pipe are also opened at the outer sleeve square steel pipe. A hanging buckle is arranged at the end of the inner sleeve square steel pipe. The above-mentioned end connection cross beam is arranged between the two inner sleeve square steel pipes, and the end of the end connection cross beam is fixedly connected to the side wall of the inner sleeve square steel pipe. The connection cross beam is composed of a cross beam outer square steel pipe and a cross beam inner square steel pipe. The cross beam outer square steel pipe and the cross beam inner square steel pipe form a nested telescopic structure. A cross beam inner square steel pipe guide groove is opened at the cross beam inner square steel pipe, through bolt holes matching the cross beam inner square steel pipe guide groove are opened at the cross beam outer square steel pipe, and locking bolt holes are also opened at the cross beam outer square steel pipe. The ear includes two ear plates. The lower ends of the two ear plates are respectively fixedly connected to the above-mentioned ear connection cross beam. Each ear plate corresponds to one ear connection cross beam, and the two ear plates are staggeredly distributed. A pin shaft is arranged between the upper ends of the two ear plates.

[0005] Compared with the prior art, the present utility model provides an adjustable trolley for introducing the standard section of a tower crane, which has the following beneficial effects: It is convenient to operate and adjust, suitable for various different types of tower cranes (excluding tower cranes of the lower introduction platform type), and can take into account both large and small tower cranes. Especially when purchasing tower cranes of multiple specifications from the same manufacturer, due to the inheritance of the tower crane design concept, the number of trolleys for introducing the standard section can be saved, which brings great convenience to the construction site managers and tower crane installation and disassembly personnel. This is also a problem that the construction site installation and disassembly personnel and management personnel hope to solve but have not been able to solve. This also conforms to the concept of green and conservation development advocated by the country in recent years. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a schematic structural diagram of the present utility model;

[0007] Figure 2 It is a schematic structural diagram of the main trolley beam of the present utility model;

[0008] Figure 3 It is a schematic structural diagram of the outer sleeve square steel pipe of the present utility model;

[0009] Figure 4 It is a schematic structural diagram of the inner sleeve square steel pipe of the present utility model;

[0010] Figure 5 Cross-sectional view of the inner square steel pipe of the present utility model;

[0011] Figure 6 Cross-sectional view of the outer square steel pipe of the present utility model;

[0012] Figure 7 Cross-sectional view of the end connecting cross beam of the present utility model;

[0013] Figure 8 Schematic diagram of the adjustable wheel set structure of the trolley of the present utility model;

[0014] Figure 9 Stereogram of the adjustable wheel set of the trolley of the present utility model;

[0015] Figure 10 Usage state diagram of the guide plate of the present utility model;

[0016] Figure 11 Stereogram of the guide plate of the present utility model;

[0017] Figure 12 Usage state diagram of the trolley lifting lug of the present utility model. Specific implementation manners

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0019] Such as Figures 1-12As shown in the figure, the utility model discloses an adjustable trolley for introducing tower crane standard sections, which includes two trolley main beams 1. Between the two trolley main beams 1, there are two end connection cross beams 2 and two hanger connection cross beams 3. On each of the two trolley main beams 1, there is a trolley adjustable wheel set 4. The two trolley adjustable wheel sets 4 are symmetrically distributed. On the hanger connection cross beam 3 between the two trolley adjustable wheel sets 4, there is a trolley hanger 5. On each of the two trolley main beams 1, there is also a guide plate 6. The trolley main beam 1 is composed of an outer sleeve square steel pipe 7 and two inner sleeve square steel pipes 8. The two inner sleeve square steel pipes 8 are respectively located at both ends inside the outer sleeve square steel pipe 7 and can move back and forth inside the outer sleeve square steel pipe 7. An inner sleeve square steel pipe guide groove 9 is opened at the inner sleeve square steel pipe 8. A through bolt hole 10 that cooperates with the inner sleeve square steel pipe guide groove 9 is opened at the outer sleeve square steel pipe 7. A locking bolt hole 11 that cooperates with the inner sleeve square steel pipe 8 is also opened at the outer sleeve square steel pipe 7. At the end of the inner sleeve square steel pipe 8, there is a hanging buckle 12. The above-mentioned end connection cross beam 2 is arranged between the two inner sleeve square steel pipes 8, and the end of the end connection cross beam 2 is fixedly connected to the side wall of the inner sleeve square steel pipe 8. The connection cross beam 2 is composed of a cross beam outer square steel pipe 13 and a cross beam inner square steel pipe 14. The cross beam outer square steel pipe 13 and the cross beam inner square steel pipe 14 form a nested telescopic structure. A cross beam inner square steel pipe guide groove 15 is opened at the cross beam inner square steel pipe 14. A through bolt hole 10 that cooperates with the cross beam inner square steel pipe guide groove 15 is opened at the cross beam outer square steel pipe 13. A locking bolt hole 11 is also opened at the cross beam outer square steel pipe 13. The hanger 5 includes two ear plates 16. The lower ends of the two ear plates 16 are respectively fixedly connected to the above-mentioned hanger connection cross beam 3. Each ear plate 16 corresponds to one hanger connection cross beam 3. The two ear plates 16 are arranged in a staggered manner. Between the upper ends of the two ear plates 16, there is a pin shaft 17.

[0020] In specific implementation, the trolley adjustable wheel set 4 is composed of a left pulley 18, a right pulley 19, a left pulley assembly base plate 20, a right pulley assembly base plate 21, and a bottom plate 25. The left pulley assembly base plate 20 and the right pulley assembly base plate 21 are both composed of a horizontally distributed horizontal base plate 22 and a vertically distributed vertical base plate 23. A 90-degree bending angle is formed between the horizontal base plate 22 and the vertical base plate 23. A kidney-shaped hole 24 is opened at the horizontal base plate 22. Bolt holes 26 are opened on the above-mentioned bottom plate 25. After the two horizontal base plates 22 are stacked on top of each other and then on the bottom plate 25, the two horizontal base plates 22 are fixed to the bottom plate 25 by bolts. The bottom plate 25 is welded to the above-mentioned outer sleeve square steel pipe 7. The distance between the left pulley 18 and the right pulley 19 can be adjusted through the kidney-shaped hole 24.

[0021] In specific implementation, a guide plate kidney-shaped hole 27 is opened at the guide plate 6.

[0022] In specific implementation, a layer of reinforcing plate 28 is covered on the outer wall of the outer sleeve square steel pipe 7.

[0023] In specific implementation, a guide plate bolt fixing hole 29 for assembling the guide plate 6 is formed in the upper part of the outer square steel pipe 7.

[0024] In specific implementation, the structure of the lug connecting cross beam 3 and the above-mentioned end connecting cross beam 2 is the same, and the length can be adjusted through a telescopic structure.

[0025] The trolley main beam and the connecting cross beam adopt a socket structure of square steel pipes. Reinforcing plates are welded on the outer side of the main beam to improve the rigidity of the main beam. The cross beam also adopts a socket structure. The cross beam is short and the number is large, which can ensure sufficient rigidity and strength of the trolley. A guide groove is formed in the middle of the inner socket square steel pipe to play a role in safety locking. A locking bolt for locking the inner square steel pipe is provided on each outer socket square steel pipe. In this way, the trolley main beam and the cross beam are completely solidified to form a rigid trolley chassis that meets the working conditions of the introduced trolley of the tower crane, preparing for the next addition and subtraction of the tower crane sections.

[0026] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable trolley for introducing standard tower crane sections, characterized in that: It includes two trolley main beams (1). Between the two trolley main beams (1), there are two end connection cross beams (2) and two hanger connection cross beams (3). On each of the two trolley main beams (1), there is a trolley adjustable wheel set (4). The two trolley adjustable wheel sets (4) are symmetrically distributed. On the hanger connection cross beam (3) between the two trolley adjustable wheel sets (4), there is a trolley hanger (5). On each of the two trolley main beams (1), there is also a guide plate (6). The trolley main beam (1) is composed of a square outer steel pipe (7) and two square inner steel pipes (8). The two square inner steel pipes (8) are respectively located inside the two ends of the square outer steel pipe (7) and can move back and forth inside the square outer steel pipe (7). At the square inner steel pipe (8), there is a square inner steel pipe guide groove (9). At the square outer steel pipe (7), there is a through bolt hole (10) that cooperates with the square inner steel pipe guide groove (9). At the square outer steel pipe (7), there is also a locking bolt hole (11) that cooperates with the square inner steel pipe (8). At the end of the square inner steel pipe (8), there is a hanging buckle (12). The above-mentioned end connection cross beam (2) is arranged between the two square inner steel pipes (8), and the end of the end connection cross beam (2) is fixedly connected to the side wall of the square inner steel pipe (8). The connection cross beam (2) is composed of a cross beam outer square steel pipe (13) and a cross beam inner square steel pipe (14). The cross beam outer square steel pipe (13) and the cross beam inner square steel pipe (14) form a nested telescopic structure. At the cross beam inner square steel pipe (14), there is a cross beam inner square steel pipe guide groove (15). At the cross beam outer square steel pipe (13), there is a through bolt hole (10) that cooperates with the cross beam inner square steel pipe guide groove (15). At the cross beam outer square steel pipe (13), there is also a locking bolt hole (11). The hanger (5) includes two ear plates (16). The lower ends of the two ear plates (16) are respectively fixedly connected to the above-mentioned hanger connection cross beam (3). Each ear plate (16) corresponds to one hanger connection cross beam (3). The two ear plates (16) are staggeredly distributed. Between the upper ends of the two ear plates (16), there is a pin shaft (17).

2. The adjustable trolley for introducing standard tower crane sections according to claim 1, wherein: The trolley adjustable wheel set (4) is composed of a left pulley (18), a right pulley (19), a left pulley assembly base plate (20), a right pulley assembly base plate (21), and a bottom plate (25). The left pulley assembly base plate (20) and the right pulley assembly base plate (21) are both composed of a horizontally distributed horizontal base plate (22) and a longitudinally distributed longitudinal base plate (23). A 90-degree bending angle is formed between the horizontal base plate (22) and the longitudinal base plate (23). At the horizontal base plate (22), there is an oval hole (24). At the above-mentioned bottom plate (25), there are bolt holes (26). After the two horizontal base plates (22) are stacked on top of each other, they are then stacked on the bottom plate (25). The two horizontal base plates (22) are fixed to the bottom plate (25) by bolts. The bottom plate (25) is welded to the above-mentioned square outer steel pipe (7).

3. The adjustable trolley for introducing standard tower crane sections according to claim 1, characterized in that: At the guide plate (6), there is a guide plate oval hole (27).

4. An adjustable trolley for introducing standard sections of tower cranes according to claim 1, characterized in that: On the outer wall of the square outer steel pipe (7), there is a layer of reinforcing plate (28).

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