Chassis of tower crane

Abstract

The utility model discloses a tower crane chassis which comprises a tower arm, a lifting hook is installed at the end of the tower arm, a cab is fixedly installed at the bottom of the tower arm, meanwhile, the cab is fixedly installed at the top of a chassis body, and the bottom of the chassis body is fixed to the surface of a reinforced concrete base through supporting feet in a threaded connection mode. A first reinforcing column, a second reinforcing column, a third reinforcing column and a fourth reinforcing column are pre-buried in the reinforced concrete base; the interior of the underframe body is fixedly supported through an underframe reinforcing assembly, and the underframe reinforcing assembly comprises a first reinforcing column, a second reinforcing column, a third reinforcing column and a fourth reinforcing column. According to the tower crane chassis, the four groups of reinforcing columns and the chassis body are welded and reinforced through the multiple groups of reinforcing steel plates, and when the chassis body is stressed, the four groups of first reinforcing columns, second reinforcing columns, third reinforcing columns and fourth reinforcing columns can ensure that the chassis body does not collapse and incline under vertical pressure and transverse shear force.

Description

Technical Field

[0001] The utility model relates to the field of cranes, in particular to a tower crane underframe. Background Art

[0002] The working principle of tower crane is mainly based on the lever principle of the boom and the pulley principle of the winch;

[0003] A tower crane has a vertical tower with a rotatable boom installed on the top. The boom is equipped with wire ropes and pulleys for lifting heavy objects. When lifting heavy objects, the boom is driven by a winch to wind the wire rope around the drum, causing the heavy objects to rise or fall.

[0004] Specifically, when heavy objects need to be lifted, the winch will lift the heavy objects through the wire rope, and the boom will rotate to the specified position as needed; during the lifting process, the length and angle of the boom can be adjusted to meet different lifting needs;

[0005] In addition, tower cranes are also equipped with various safety protection devices, such as overload limiters, limit switches, etc., to ensure the safety of the lifting process;

[0006] The tower base frame of a tower crane bears the weight of the entire equipment. In strong winds, it will affect the stability of the tower crane, causing the tower to become unstable and collapse. Utility Model Content

[0007] The purpose of the utility model is to provide a tower crane underframe to solve the defects mentioned in the above background technology.

[0008] To achieve the above-mentioned purpose, a tower crane underframe is provided, comprising a tower arm, a hook is installed at the end of the tower arm, and a cab is fixedly installed at the bottom of the tower arm, and the cab is fixedly installed on the top of the underframe body, and the bottom of the underframe body is fixed to the surface of a reinforced concrete base by screwing support feet, and the first reinforcement column, the second reinforcement column, the third reinforcement column and the fourth reinforcement column are pre-embedded inside the reinforced concrete base; the interior of the underframe body is fixedly supported by an underframe reinforcement assembly, and the underframe reinforcement assembly includes a first reinforcement column, a second reinforcement column, a third reinforcement column and a fourth reinforcement column;

[0009] Multiple groups of reinforcement plates are evenly welded and fixed on the outer side of the base frame body, and the interior of the base frame body respectively accommodates the first reinforcement column, the second reinforcement column, the third reinforcement column and the fourth reinforcement column, which are fixed to the base frame body through multiple groups of reinforcement steel plates.

[0010] Preferably, the first reinforcing column, the second reinforcing column, the third reinforcing column and the fourth reinforcing column have the same structure, and are reinforced by two groups of steel plate reinforcements, and the two groups of steel plate reinforcements are combined to form an "X" shape.

[0011] Preferably, both ends of the steel plate reinforcement are welded and fixed to the outer side of the reinforcing column, and the steel plate reinforcement is a channel steel, and two groups of oppositely arranged reinforcing columns are supported and fixed by multiple groups of steel plate reinforcements.

[0012] Preferably, the first reinforcing column includes vertical steel plates, and the vertical steel plates are arranged in four groups, and the four groups of vertical steel plates are respectively welded at the inner corners of the reinforcing plate.

[0013] Preferably, the cross-section of the vertical steel plate is an "L"-shaped structure, and the cross-section of the rib plate is a square structure. At the same time, multiple groups of rib plates are evenly arranged on the outer side of the vertical steel plate, and the distance between two adjacent groups of rib plates is consistent.

[0014] Preferably, the first reinforcement column, the second reinforcement column, the third reinforcement column and the fourth reinforcement column are combined together to form a reinforcement structure of the chassis body, and the chassis body and the four groups of reinforcement columns are welded and reinforced by multiple groups of "L"-shaped reinforcement steel plates.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows: the first reinforcing column, the second reinforcing column, the third reinforcing column and the fourth reinforcing column are fixedly arranged on the surface of the reinforced concrete base, the four groups of reinforcing columns are inserted into the interior of the base frame body, and at the same time, the four groups of reinforcing columns and the base frame body are welded and reinforced by multiple groups of reinforcing steel plates. When the base frame body is under stress, the four groups of first reinforcing columns, the second reinforcing columns, the third reinforcing columns and the fourth reinforcing columns can ensure that the base frame body will not collapse or tilt when subjected to vertical pressure and lateral shear force. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the front view of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the structural chassis reinforcement component of the utility model;

[0018] Figure 3 The utility model structure Figure 2 A top-down cross-sectional view of

[0019] Figure 4 The utility model structure Figure 2 Side view of

[0020] Figure 5 This is a schematic diagram of the structure of the first reinforcement column of the utility model.

[0021] Numbers in the figure: 1. tower arm; 2. hook; 3. cab; 4. chassis body; 41. reinforcement plate; 5. chassis reinforcement assembly; 50. reinforcement steel plate; 51. first reinforcement column; 511. vertical steel plate; 512. rib plate; 52. second reinforcement column; 53. second reinforcement column; 54. third reinforcement column; 55. steel plate reinforcement; 6. reinforced concrete base. DETAILED DESCRIPTION

[0022] See also Figure 1-5 The utility model provides a tower crane chassis, including a tower arm 1, a hook 2 is installed at the end of the tower arm 1, and a cab 3 is fixedly installed at the bottom of the tower arm 1, and the cab 3 is fixedly installed on the top of the chassis body 4, and the bottom of the chassis body 4 is fixed to the surface of a reinforced concrete base 6 by screwing with supporting feet, and the first reinforcement column 51, the second reinforcement column 52, the third reinforcement column 53 and the fourth reinforcement column 54 are pre-buried in the reinforced concrete base 6; the interior of the chassis body 4 is fixedly supported by a chassis reinforcement assembly 5, and the chassis reinforcement assembly 5 includes a first reinforcement column 51, a second reinforcement column 52, a third reinforcement column 53 and a fourth reinforcement column 54;

[0023] A plurality of reinforcement plates 41 are uniformly welded and fixed to the outer side of the base frame body 4, and the interior of the base frame body 4 accommodates a first reinforcement column 51, a second reinforcement column 52, a third reinforcement column 53 and a fourth reinforcement column 54 respectively, and the first reinforcement column 51, the second reinforcement column 52, the third reinforcement column 53 and the fourth reinforcement column 54 are fixed to the base frame body 4 by a plurality of reinforcement steel plates 50.

[0024] Working principle: When in use, the bottom of the base frame body 4 is fixed to the surface of the reinforced concrete base 6 by screwing the support feet. At the same time, the first reinforcing column 51, the second reinforcing column 52, the third reinforcing column 53 and the fourth reinforcing column 54 are fixedly arranged on the surface of the reinforced concrete base 6. The four groups of reinforcing columns are inserted into the interior of the base frame body 4. At the same time, the four groups of reinforcing columns and the base frame body 4 are welded and reinforced by multiple groups of reinforcing steel plates 50. When the base frame body 4 is under stress, the four groups of first reinforcing columns 51, the second reinforcing columns 52, the third reinforcing columns 53 and the fourth reinforcing columns 54 can ensure that the base frame body 4 will not collapse or tilt when subjected to vertical pressure and lateral shear force.

[0025] As a preferred embodiment, the first reinforcement column 51, the second reinforcement column 52, the third reinforcement column 53 and the fourth reinforcement column 54 have the same structure, and the first reinforcement column 51, the second reinforcement column 52, the third reinforcement column 53 and the fourth reinforcement column 54 are reinforced by two groups of steel plate reinforcement bars 55, and the two groups of steel plate reinforcement bars 55 are combined to form an "X" shape.

[0026] The two groups of steel plate reinforcement bars 55 are combined to form an "X" shape. The arrangement of the steel plate reinforcement bars 55 can fix and support the first reinforcement column 51, the second reinforcement column 52, the third reinforcement column 53 and the fourth reinforcement column 54 to prevent the reinforcement columns from tilting.

[0027] As a preferred implementation, both ends of the steel plate tie bars 55 are welded and fixed to the outside of the reinforcing column, and the steel plate tie bars 55 are channel steels. At the same time, two groups of relatively arranged reinforcing columns are supported and fixed by multiple groups of steel plate tie bars 55.

[0028] The first reinforcing column 51 includes vertical steel plates 511 , and the vertical steel plates 511 are arranged in four groups. Meanwhile, the four groups of vertical steel plates 511 are respectively welded to the inner corners of the reinforcing plate 512 .

[0029] The cross-section of the vertical steel plate 511 is an "L"-shaped structure, and the cross-section of the rib plate 512 is a square structure. At the same time, multiple groups of rib plates 512 are evenly arranged on the outer side of the vertical steel plate 511, and the distance between two adjacent groups of rib plates 512 is consistent.

[0030] As a preferred embodiment, the first reinforcement column 51, the second reinforcement column 52, the third reinforcement column 53 and the fourth reinforcement column 54 are combined together to form a reinforcement structure of the base frame body 4, and the base frame body 4 and the four groups of reinforcement columns are welded and reinforced by multiple groups of "L"-shaped reinforcement steel plates 50.

Claims

1. A tower crane underframe, comprising a tower arm (1), characterized in that: The end of the tower arm (1) is equipped with a hook (2), and the bottom of the tower arm (1) is fixedly equipped with a cab (3), and the cab (3) is fixedly equipped on the top of the chassis body (4), and the bottom of the chassis body (4) is fixed to the surface of a reinforced concrete base (6) by screwing support feet, and the interior of the reinforced concrete base (6) is pre-buried with a first reinforcement column (51), a second reinforcement column (52), a third reinforcement column (53) and a fourth reinforcement column (54); the interior of the chassis body (4) is fixedly supported by a chassis reinforcement assembly (5), and the chassis reinforcement assembly (5) includes a first reinforcement column (51), a second reinforcement column (52), a third reinforcement column (53) and a fourth reinforcement column (54); A plurality of groups of reinforcing plates (41) are uniformly welded and fixed on the outer side of the base frame body (4), and the interior of the base frame body (4) respectively accommodates a first reinforcing column (51), a second reinforcing column (52), a third reinforcing column (53) and a fourth reinforcing column (54), and the first reinforcing column (51), the second reinforcing column (52), the third reinforcing column (53) and the fourth reinforcing column (54) are fixedly installed with the base frame body (4) via a plurality of groups of reinforcing steel plates (50).

2. A tower crane underframe according to claim 1, characterized in that: The first reinforcing column (51), the second reinforcing column (52), the third reinforcing column (53) and the fourth reinforcing column (54) have the same structure, and are reinforced by two groups of steel plate reinforcement bars (55) between the first reinforcing column (51), the second reinforcing column (52), the third reinforcing column (53) and the fourth reinforcing column (54), and the two groups of steel plate reinforcement bars (55) are combined to form an "X" shape.

3. A tower crane underframe according to claim 2, characterized in that: Both ends of the steel plate tie bars (55) are welded and fixed to the outer sides of the reinforcement columns, and the steel plate tie bars (55) are channel steels. Meanwhile, two groups of oppositely arranged reinforcement columns are supported and fixed by multiple groups of steel plate tie bars (55).

4. A tower crane underframe according to claim 1, characterized in that: The first reinforcing column (51) comprises vertical steel plates (511), and the vertical steel plates (511) are arranged in four groups, and the four groups of vertical steel plates (511) are respectively welded to the inner corners of the reinforcing plate (512).

5. A tower crane underframe according to claim 4, characterized in that: The cross section of the vertical steel plate (511) is an "L"-shaped structure, and the cross section of the reinforcing plate (512) is a square structure. At the same time, multiple groups of reinforcing plates (512) are evenly arranged on the outer side of the vertical steel plate (511), and the distance between two adjacent groups of reinforcing plates (512) is consistent.

6. A tower crane underframe according to claim 1, characterized in that: The first reinforcement column (51), the second reinforcement column (52), the third reinforcement column (53) and the fourth reinforcement column (54) are combined together to form a reinforcement structure of the chassis body (4), and the chassis body (4) and the four groups of reinforcement columns are welded and reinforced by using multiple groups of "L"-shaped reinforcement steel plates (50).

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