Tower crane upper structure and flat-top tower crane

A technology for tower cranes and hoisting mechanisms, applied in cranes and other directions, can solve the problems of inconvenient transportation, large size of the balance arm, easy inclination of the bottom surface when disassembled and placed, and achieves easy transportation and disassembly, reduced structural size, and obvious safety and reliability. The effect of stability

Pending Publication Date: 2022-02-25
XUZHOU CONSTR MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a tower crane superstructure and a flat-top tower crane to solve the problems of inconvenient transportation due to the large size of the balance arm in the large tower cranes in the prior art and the easy inclination of the bottom surface when disassembled and placed

Method used

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  • Tower crane upper structure and flat-top tower crane
  • Tower crane upper structure and flat-top tower crane
  • Tower crane upper structure and flat-top tower crane

Examples

Experimental program
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Embodiment 1

[0045] Such as Figure 1 to Figure 3 , In this embodiment, a tower crane superstructure is provided, which specifically includes: a lifting arm 1 , a tower top 2 , and a balance arm 3 . Among them, boom 1 is divided into: left boom 6, right boom 7; tower top 2 is divided into: left tower top 10, right tower top 11; balance arm 3 is divided into: left balance arm 8, right balance arm 9; left luffing mechanism 12 and left lifting mechanism 14 are arranged on the left balance arm 8; right luffing mechanism 13 and right lifting mechanism 15 are arranged on the right balance arm 9; left trolley 22 and The left hook pulley block 16; the right boom 7 is provided with a right trolley 23 and a right hook pulley block 17; the left hook pulley block 16, the right hook pulley block 17, the balance beam 18, and the hook head 19 jointly form a large hook block 24 .

[0046] The boom 1 is made up of two boom frames on the left and right, which can make the trolley walk on the boom to carry...

Embodiment 2

[0067] Such as Figure 4 As shown, in this embodiment, a flat-top tower crane is provided, including the tower crane superstructure in Embodiment 1, and also includes an upper support 4 and a lower machine 5

[0068] The upper support 4 is connected to the top of the tower, and the lower part is connected to the lower machine 5 through a slewing bearing, and a mechanism for driving rotation is installed inside so that the upper machine of the tower crane can rotate freely. Get off the machine 5: set up the upper structure so that the tower crane has a certain lifting height.

[0069] The upper structure of the tower crane and the flat-top tower crane provided by this application: the boom of the smaller tower crane is connected in parallel left and right through a number of boom joints to form the boom of the large tower crane, and the balance of the smaller tower crane The arms are connected in parallel left and right through a number of balance arm joints to form the balanc...

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Abstract

The invention discloses a tower crane upper structure and a flat-top tower crane, the upper structure comprises a tower top, cargo booms and balance booms, the cargo booms and the balance booms are respectively connected to two sides of the tower top, the cargo booms comprise a left cargo boom and a right cargo boom, and the balance booms comprise a left balance boom and a right balance boom; each of the left cargo boom and the right cargo boom comprises a plurality of connected cargo boom sections, and each of the left balance arm and the right balance arm comprises a plurality of connected balance arm sections. According to the upper structure designed by the invention, through the design mode that the balance arms are divided into the left balance arm and the right balance arm, the structural size of the integral balance arm is effectively reduced, the balance arms are convenient to transport, disassemble and assemble, and through the design that the left balance arm and the right balance arm each comprise a plurality of connected balance arm sections, the balance arms are convenient to transport, disassemble and assemble; when the balance arms are detached and placed on the ground, the balance arm sections away from the support can be detached to prevent the balance arms from inclining.

Description

technical field [0001] The invention relates to the technical field of tower cranes, in particular to a tower crane superstructure and a flat top tower crane. Background technique [0002] With the development of the construction industry and the needs of building construction, the working range of tower cranes is constantly increasing, and the requirements for lifting capacity are also increasing, and the length of the boom is constantly increasing. As a result, the length of the balance arm and the mass of the balance weight continue to increase. [0003] For large tower cranes, the structural size and weight of the balance arm are still relatively large, so there will be difficulties in transportation and higher requirements for cranes during installation. In addition, when the balance arm is disassembled and placed on the ground after work, it will be connected to the upper support. Due to the large size of the balance arm, the center of gravity may be far away from the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C23/06B66C23/62B66C23/64B66C23/70
CPCB66C23/005B66C23/06B66C23/62B66C23/64B66C23/70
Inventor 米成宏郑怀鹏
Owner XUZHOU CONSTR MACHINERY
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