Crane boom mechanism and crane

A crane and jib technology, applied in the field of hoisting equipment, can solve the problems affecting the telescopic performance of the main boom, difficult operation of the mechanical structure, and high cost of the hydraulic cylinder structure, and achieve the effects of ingenious design, small shock jitter, and simple structure

Active Publication Date: 2015-11-18
SANY AUTOMOBILE HOISTING MACHINERY
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Problems solved by technology

[0006] In view of this, the object of the present invention is to provide a crane jib mechanism, which can not only solve the defects of difficult operation of the mechanical structure and the defects affecting the telescopic performance of the main arm in the prior art, but also solve the problem of excessive cost of the hydraulic cylinder structure in the prior art. high defect

Method used

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  • Crane boom mechanism and crane
  • Crane boom mechanism and crane
  • Crane boom mechanism and crane

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Embodiment Construction

[0038] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0039] In the present invention, the terms "first" and "second" are mainly used to distinguish different components, but do not specifically limit the components. In the case of no conflict, the technical features in the various embodiments can also be combined with each other.

[0040] figure 1 Shown is a schematic structural view of a crane jib mechanism according to an embodiment of the present invention. The jib mechanism of this embodiment includes a main arm 1 and an auxiliary arm 2 . The auxiliary arm 2 is swingably arranged at the end of the main arm 1 . After the relative angle between the auxiliary jib 2 and the main jib 1 is changed, the working range and hoisting height of the crane...

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Abstract

The invention discloses a crane boom mechanism and a crane. The crane boom mechanism comprises a main boom and a vice boom. The vice boom is arranged at the tail end of the main boom in a swing mode. The crane boom mechanism further comprises an extensible component, a first winch and a second winch. One end of the extensible component is connected with the main boom, and the other end of the extensible component is connected with the vice boom. The extensible component is provided with a bolt used for locating. A rope of the first winch is used for drawing and releasing the vice boom. A rope of the second winch is connected with the bolt. The bolt is further provided with an elastic component. The elastic component exerts elastic force on the bolt, and the elastic force makes the bolt to penetrate into the extensible component. According to the crane boom mechanism and the crane, automatic adjustment of an angle between the main boom and the vice boom can be achieved. The crane boom mechanism is simple in structure, low in production cost, and applicable to the crane with a long vice boom structure.

Description

technical field [0001] The invention mainly relates to the technical field of hoisting equipment, in particular to a crane jib mechanism and a crane provided with the crane jib mechanism. Background technique [0002] In order to extend the working range of the crane, the jib mechanism of the crane often includes a main arm and an auxiliary arm, and the auxiliary arm is arranged at the end of the main arm. For large-tonnage cranes, the length of the jib is generally between 15 meters and 45 meters, and the jibs are all designed with a variable installation angle structure. When the jib is tilted back, the working range and hoisting height can be increased. [0003] In the prior art, common methods of changing the angle of the jib mainly include mechanical angle changing and hydraulic cylinder angle changing. [0004] For the mechanical variable angle structure, the adjustment of the jib angle can be realized by using the mechanical pull plate, which has a simple structure a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C23/687B66C23/82
CPCB66C23/66B66C23/82
Inventor 韦仕持黄昔平吴海龙
Owner SANY AUTOMOBILE HOISTING MACHINERY
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