A reinforced foundation section connection for a tower crane

Abstract

The utility model relates to tower crane technical field discloses a kind of reinforcing base section connecting structure for tower crane, including chassis and standard tower section, the beam is fixedly installed on the chassis, the connecting lug is welded at the four corners of standard tower section, the one end of connecting lug away from standard tower section is provided with connecting arm one, the one end of connecting arm one away from connecting lug is threadedly connected with connecting sleeve, the one end of connecting sleeve away from connecting arm one is threadedly connected with connecting arm two.The reinforcing base section connecting structure for tower crane, connecting arm one and connecting arm two structure are same and all adapt connecting sleeve, can realize spare interchange, simplify production and maintenance cost, the design of threaded connection, the overall length of connecting arm can be adjusted by rotatable connecting sleeve, compensate the installation error between standard tower section and chassis, when needing to disassemble tower section, just loosen connecting sleeve to quickly separate connecting arm assembly, improve construction efficiency.

Description

Technical Field

[0001] This utility model relates to the field of tower crane technology, specifically to a reinforced foundation section connection structure for tower cranes. Background Technology

[0002] As a key lifting equipment in construction, the tower crane's foundation section is the core component connecting the tower body to the ground foundation. It bears the crane's own weight, lifting load, and complex loads such as dynamic torque and bending moment during operation. Before installing the tower crane, a counterweight base frame foundation needs to be constructed, with the footings poured inside the foundation. During installation, the counterweight base frame is installed on the footings to improve its load-bearing capacity.

[0003] Chinese invention patent publication number CN115594099A discloses a counterweight base frame and its foundation structure for a tower crane. The specification describes a method of supporting the tower crane using a foundation plate to ensure its normal operation. The foundation plate and base frame legs are reusable, resulting in low investment costs and improved on-site installation efficiency, offering significant social and economic benefits. However, this counterweight base frame and its foundation structure lacks pre-embedded reinforcement structures, making it prone to detachment from the cement base layer. This results in poor transmission of complex loads across standard tower sections, affecting normal operation. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a reinforced foundation section connection structure for tower cranes. It can effectively solve the problem in the prior art that the lack of a pre-embedded reinforcing structure can easily lead to detachment from the cement base, resulting in poor transmission of complex loads by standard tower sections and thus affecting normal use.

[0005] The technical solution adopted by this utility model is: a reinforced foundation section connection structure for tower cranes, including a base frame and a standard tower section. A crossbeam is fixedly installed on the base frame. Connecting ears are welded at the four corners of the standard tower section. A connecting arm one is provided at the end of the connecting ear away from the standard tower section. A connecting sleeve is threadedly connected to the end of the connecting arm one away from the connecting ear. A connecting arm two is threadedly connected to the end of the connecting sleeve away from the connecting arm one. A mounting plate is welded to the end of the crossbeam away from the base frame. A reinforcing column is fixedly installed at the end of the mounting plate away from the base frame. An embedded plate is fixedly installed at the end of the reinforcing column away from the mounting plate. An embedded part one and an embedded part two are fixedly installed at the outer edge of the embedded plate.

[0006] Preferably, there are multiple identical reinforcing columns, and the multiple reinforcing columns are distributed at equal intervals.

[0007] Through the above technical solution, multiple reinforcing columns are evenly distributed to uniformly bear the vertical load and bending moment transmitted by the standard tower section, avoiding local stress concentration that could lead to deformation of the foundation section. The reinforcing columns are welded to the crossbeams by mounting plates and fixed to the embedded plates at the top, which can distribute the weight of the tower crane and the overturning moment during operation to the foundation, thereby improving the anti-settlement capacity and overall stability of the foundation section.

[0008] Preferably, the end of the second connecting arm away from the connecting sleeve is provided with an installation groove, and the end of the crossbeam away from the base frame is fixedly installed with a connecting angle steel. The second connecting arm is fixedly installed with the connecting angle steel through the installation groove.

[0009] Through the above technical solution, the mounting groove of the connecting arm 2 is engaged with the connecting angle steel and then fixed with bolts to form a detachable rigid connection. This allows the standard tower section and the base frame to be quickly aligned during installation. At the same time, the thread adjustment between the connecting sleeve and the connecting arm 1 can compensate for installation errors. When the tower crane is working, the cooperation between the connecting angle steel and the mounting groove can effectively resist horizontal shear force, prevent lateral displacement of the standard tower section, and ensure connection reliability.

[0010] Preferably, both the first embedded part and the second embedded part have an inverted "J" shaped cross section, and the first embedded part and the second embedded part face opposite directions.

[0011] With the above technical solution, the inverted "J" shaped embedded part one and embedded part two are arranged in opposite directions, which can form a bidirectional anchoring force after the concrete is poured. The bent section of the embedded part interlocks with the concrete, which can effectively resist the upward pull force and horizontal thrust, and prevent the embedded plate from being pulled out of the foundation.

[0012] Preferably, the cross-section of the beam is in the shape of a cross, and each of the four corners of the beam is fixedly equipped with an installation plate, a reinforcing column, a pre-embedded plate, a pre-embedded part one, and a pre-embedded part two.

[0013] Through the above technical solution, the crossbeam with the "+" cross section has high bending and torsional strength and can withstand the complex loads transmitted by the standard tower section. The crossbeam is equipped with mounting plates, reinforcing columns and other components at the four corners to form a symmetrical support structure, so that the load is evenly distributed to the four corners and the crossbeam is prevented from twisting due to eccentric force.

[0014] Preferably, the first connecting arm and the second connecting arm have the same structure, and both the first connecting arm and the second connecting arm are adapted to the connecting sleeve.

[0015] Through the above technical solution, connecting arm one and connecting arm two have the same structure and are both compatible with connecting sleeves, which can realize the interchangeability of parts, simplify production and maintenance costs. The threaded connection design allows the connecting sleeve to be rotated to adjust the overall length of the connecting arm, compensating for the installation error between the standard tower section and the base frame. When it is necessary to disassemble the tower section, simply loosen the connecting sleeve to quickly separate the connecting arm assembly, improving construction efficiency.

[0016] Preferably, a counterweight is provided at the end of the crossbeam away from the base frame, and the counterweight is provided in four identical groups, with three identical counterweights in each group.

[0017] Through the above technical solution, the counterweights on the crossbeam can balance the overturning moment of the tower crane during operation by increasing the self-weight of the foundation section, preventing the foundation section from tilting due to uneven force. The four sets of counterweights are symmetrically distributed to ensure that the center of gravity of the foundation section can remain stable under different lifting directions.

[0018] Compared with the prior art, this utility model provides a reinforced foundation section connection structure for tower cranes, which has the following beneficial effects:

[0019] 1. This reinforced foundation section connection structure for tower cranes has the same structure for connecting arm one and connecting arm two, and both are equipped with connecting sleeves, which can realize the interchangeability of parts, simplify production and maintenance costs. The threaded connection design allows the connecting sleeve to be rotated to adjust the overall length of the connecting arm, compensating for the installation error between the standard tower section and the base frame. When it is necessary to disassemble the tower section, simply loosen the connecting sleeve to quickly separate the connecting arm assembly, improving construction efficiency.

[0020] 2. The reinforced foundation section connection structure for tower cranes features an inverted "J"-shaped embedded part one and an embedded part two arranged in opposite directions. This creates a bidirectional anchoring force after concrete pouring. The bent sections of the embedded parts interlock with the concrete, effectively resisting upward pull-out forces and horizontal thrust. Combined with the "+"-shaped crossbeam, which has high bending and torsional strength, it can withstand the complex loads transmitted by a standard tower section. Mounting plates, reinforcing columns, and other components are arranged at the four corners of the crossbeam to form a symmetrical support structure, ensuring that the load is evenly distributed to the four corners and preventing the crossbeam from twisting due to eccentric stress. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0023] Figure 3 This is a schematic diagram showing the disassembled structure of the base frame and mounting plate of this utility model;

[0024] Figure 4 This is a schematic diagram of the disassembled structure of the base frame and counterweight of this utility model. Figure 1 ;

[0025] Figure 5 This is a schematic diagram of the disassembled structure of the base frame and counterweight of this utility model. Figure 2 ;

[0026] Figure 6 This is a schematic diagram of the disassembled structure of the connecting ear and connecting arm of this utility model;

[0027] Figure 7 This is a schematic diagram of the installation structure of the connecting arm 2 and the connecting angle steel of this utility model.

[0028] The components are: 1. Base frame; 2. Crossbeam; 3. Counterweight block; 4. Standard tower section; 5. Connecting lug; 6. Connecting arm one; 7. Connecting sleeve; 8. Connecting arm two; 9. Mounting groove; 10. Connecting angle steel; 11. Mounting plate; 12. Reinforcing column; 13. Embedded plate; 14. Embedded part one; 15. Embedded part two. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1: As Figure 1-7 As shown, the present invention provides a reinforced foundation section connection structure for a tower crane, including a base frame 1 and a standard tower section 4. A crossbeam 2 is fixedly installed on the base frame 1. Connecting ears 5 are welded at the four corners of the standard tower section 4. A connecting arm 6 is provided at the end of the connecting ear 5 away from the standard tower section 4. A connecting sleeve 7 is threadedly connected to the end of the connecting arm 6 away from the connecting ear 5. A connecting arm 8 is threadedly connected to the end of the connecting sleeve 7 away from the connecting arm 6. An installation plate 11 is welded to the end of the crossbeam 2 away from the base frame 1. A reinforcing column 12 is fixedly installed at the end of the installation plate 11 away from the base frame 1. An embedded plate 13 is fixedly installed at the end of the reinforcing column 12 away from the installation plate 11. An embedded part 14 and an embedded part 2 15 are fixedly installed at the outer edge of the embedded plate 13.

[0031] Specifically, multiple reinforcing columns 12 are provided, and the multiple reinforcing columns 12 are distributed at equal intervals. The advantage is that the multiple reinforcing columns 12 distributed at equal intervals can evenly bear the vertical load and bending moment transmitted by the standard tower section 4, avoiding local stress concentration that could lead to deformation of the foundation section. The reinforcing columns 12 are welded to the crossbeam 2 through the mounting plate 11 and fixed to the embedded plate 13 at the upper end. This can disperse the weight of the tower crane and the overturning moment during operation to the foundation, improving the anti-settlement capacity and overall stability of the foundation section.

[0032] Specifically, the end of the connecting arm 2 8 away from the connecting sleeve 7 has an installation groove 9, and the end of the crossbeam 2 away from the base frame 1 is fixedly installed with a connecting angle steel 10. The connecting arm 2 8 is fixedly installed with the connecting angle steel 10 through the installation groove 9. The advantage is that after the installation groove 9 of the connecting arm 2 8 and the connecting angle steel 10 are engaged and fixed with bolts, a detachable rigid connection is formed, which allows the standard tower section 4 and the base frame 1 to be quickly aligned during installation. At the same time, the installation error can be compensated by adjusting the threads of the connecting sleeve 7 and the connecting arm 1 6. When the tower crane is working, the cooperation between the connecting angle steel 10 and the installation groove 9 can effectively resist horizontal shear force, prevent the standard tower section 4 from lateral displacement, and ensure the reliability of the connection.

[0033] Specifically, both embedded part 14 and embedded part 2 15 have inverted "J" shaped cross sections. Embedded part 14 and embedded part 2 15 face opposite directions. The advantage is that the inverted "J" shaped embedded part 14 and embedded part 2 15 are arranged in opposite directions, which can form a bidirectional anchoring force after the concrete is poured. The bent section of the embedded part interlocks with the concrete, which can effectively resist the upward pull force and horizontal thrust, and prevent the embedded plate 13 from being pulled out of the foundation.

[0034] Example 2: Figure 2-7 As shown, this is an improvement on the previous embodiment.

[0035] Specifically, the cross section of the crossbeam 2 is a cross shape. At each of the four corners of the crossbeam 2, there are fixed installation plates 11, reinforcing columns 12, embedded plates 13, embedded parts 14 and 15. The advantage is that the cross-shaped cross section of the crossbeam 2 has high bending and torsional strength and can withstand the complex loads transmitted by the standard tower section 4. The four corners of the crossbeam 2 are equipped with components such as installation plates 11 and reinforcing columns 12 to form a symmetrical support structure, so that the load is evenly distributed to the four corners and the crossbeam 2 is prevented from twisting due to eccentric force.

[0036] Specifically, connecting arm 6 and connecting arm 8 have the same structure. Both connecting arm 6 and connecting arm 8 are adapted to connecting sleeve 7. The advantage is that connecting arm 6 and connecting arm 8 have the same structure and are both adapted to connecting sleeve 7, which can realize the interchangeability of parts, simplify production and maintenance costs. The threaded connection design allows the connecting sleeve 7 to be rotated to adjust the overall length of the connecting arm, compensating for the installation error between the standard tower section 4 and the base frame 1. When the tower section needs to be disassembled, the connecting arm assembly can be quickly separated by simply loosening the connecting sleeve 7, improving construction efficiency.

[0037] Specifically, a counterweight 3 is provided at the end of the crossbeam 2 away from the base frame 1. There are four identical sets of counterweight 3, and each set of counterweight 3 has three identical counterweight 3. The advantage is that the counterweight 3 on the crossbeam 2 can balance the overturning moment of the tower crane during operation by increasing the self-weight of the foundation section, and prevent the foundation section from tilting due to uneven force. The four sets of counterweight 3 are symmetrically distributed to ensure that the center of gravity of the foundation section can remain stable under different lifting directions.

[0038] Working principle: During use, the standard tower section 4 and the base frame 1 are quickly aligned during installation by engaging the mounting groove 9 of the connecting arm 2 8 with the connecting angle steel 10 and securing them with bolts. Simultaneously, the threads of the connecting sleeve 7 and the connecting arm 1 6 can compensate for installation errors. When the tower crane is operating, the cooperation between the connecting angle steel 10 and the mounting groove 9 effectively resists horizontal shear forces, preventing lateral displacement of the standard tower section 4 and ensuring connection reliability. Multiple equally spaced reinforcing columns 12 evenly distribute the vertical load and bending moment transmitted by the standard tower section 4, avoiding localized stress concentration that could lead to deformation of the base section. The reinforcing column 12 is welded to the crossbeam 2 via the mounting plate 11, and its upper end is fixed to the embedded plate 13. This disperses the weight of the tower crane and the overturning moment during operation to the foundation, improving the settlement resistance and overall stability of the foundation section. The connecting arm 2 8 is secured to the connecting angle steel 10 via the mounting groove 9, forming a detachable rigid connection. This allows for quick alignment of the standard tower section 4 and the base frame 1 during installation. Simultaneously, the threaded adjustment of the connecting sleeve 7 and the connecting arm 1 6 compensates for installation errors. When the tower crane is operating, the cooperation between the connecting angle steel 10 and the mounting groove 9 effectively resists horizontal shear forces, preventing the standard tower section 4 from collapsing. Lateral displacement ensures connection reliability. The inverted "J"-shaped embedded part 14 and embedded part 2 15 are arranged in opposite directions, forming a bidirectional anchoring force after concrete pouring. The bent sections of the embedded parts interlock with the concrete, effectively resisting upward pull-out and horizontal thrust, preventing the embedded plate 13 from being pulled out of the foundation. The crossbeam 2 with a "+"-shaped cross section has high bending and torsional strength, capable of withstanding the complex loads transmitted by the standard tower section 4. Mounting plates 11 and reinforcing columns 12 are arranged at the four corners of the crossbeam 2, forming a symmetrical support structure that evenly distributes the load to the four corners, preventing the crossbeam 2 from twisting due to eccentric stress. Connecting arm 6... The connecting arm 2 has the same structure as the connecting arm 8 and is compatible with the connecting sleeve 7, which allows for parts interchangeability, simplifies production and maintenance costs, and the threaded connection design allows the connecting sleeve 7 to be rotated to adjust the overall length of the connecting arm, compensating for installation errors between the standard tower section 4 and the base frame 1. When the tower section needs to be disassembled, simply loosen the connecting sleeve 7 to quickly separate the connecting arm assembly, improving construction efficiency. The counterweight 3 on the crossbeam 2 increases the self-weight of the base section, which can balance the overturning moment of the tower crane during operation and prevent the base section from tilting due to uneven force. The four sets of counterweight 3 are symmetrically distributed to ensure that the base section can maintain a stable center of gravity under different lifting directions.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A reinforced foundation section connection structure for a tower crane, comprising a base frame (1) and a standard tower section (4), characterized in that: A crossbeam (2) is fixedly installed on the base frame (1). Connecting ears (5) are welded at the four corners of the standard tower section (4). A connecting arm (6) is provided at the end of the connecting ear (5) away from the standard tower section (4). A connecting sleeve (7) is threaded to the end of the connecting arm (6) away from the connecting ear (5). A connecting arm (8) is threaded to the end of the connecting sleeve (7) away from the connecting arm (6). An installation plate (11) is welded to the end of the crossbeam (2) away from the base frame (1). A reinforcing column (12) is fixedly installed at the end of the installation plate (11) away from the base frame (1). An embedded plate (13) is fixedly installed at the end of the reinforcing column (12) away from the installation plate (11). An embedded part (14) and an embedded part (15) are fixedly installed at the outer edge of the embedded plate (13).

2. The reinforced foundation section connection structure for a tower crane according to claim 1, characterized in that: The reinforcing columns (12) are provided in multiple identical manner, and the multiple reinforcing columns (12) are distributed at equal intervals.

3. The reinforced foundation section connection structure for a tower crane according to claim 1, characterized in that: The second connecting arm (8) has an installation groove (9) at one end away from the connecting sleeve (7), and the crossbeam (2) has a connecting angle steel (10) fixedly installed at one end away from the base frame (1). The second connecting arm (8) is fixedly installed with the connecting angle steel (10) through the installation groove (9).

4. The reinforced foundation section connection structure for a tower crane according to claim 1, characterized in that: Both the first embedded part (14) and the second embedded part (15) have an inverted "J" shaped cross section, and the first embedded part (14) and the second embedded part (15) face opposite directions.

5. A reinforced foundation section connection structure for a tower crane according to claim 1, characterized in that: The cross section of the beam (2) is in the shape of a cross. The four corners of the beam (2) are fixedly equipped with mounting plates (11), reinforcing columns (12), embedded plates (13), embedded parts one (14) and embedded parts two (15).

6. The reinforced foundation section connection structure for a tower crane according to claim 1, characterized in that: The first connecting arm (6) and the second connecting arm (8) have the same structure, and both the first connecting arm (6) and the second connecting arm (8) are adapted to the connecting sleeve (7).

7. The reinforced foundation section connection structure for a tower crane according to claim 1, characterized in that: The crossbeam (2) is provided with a counterweight (3) at the end away from the base frame (1). There are four identical sets of the counterweight (3), and each set of the counterweight (3) has three identical counterweights.

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