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Folded boom and crane

A boom and jib technology, which is applied in the field of cranes, can solve the problems of hidden safety hazards, hidden safety hazards, time-consuming and labor-intensive operations, and achieve the effects of good operation mechanization, convenient disassembly and assembly, and improved safety.

Active Publication Date: 2015-02-11
ZOOMLION HEAVY IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing folding jib frame, when the jib 1 is unfolded or recovered, one end of the tie rod 4 is a free end, so the tie rod 4 can swing freely when the main boom 5 is luffing and luffing, and the operation is safe. Hidden danger; In addition, when the jib 1 is unfolded or recovered, it is necessary for the staff to climb up and install the tie rod 4 to complete the loading and unloading of the jib 1, which is highly dependent on labor, time-consuming and labor-intensive, and has potential safety hazards

Method used

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Embodiment Construction

[0044] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, and not to limit the present invention.

[0045] In the present invention, if there is no explanation to the contrary, the orientation words used such as "up and down" are usually defined under the normal use of the folding boom provided by the present invention, and are also related to the direction shown with reference to the drawings. Consistent; "inside and outside" refers to the inside and outside relative to the contour of each component itself.

[0046] The invention relates to a folding arm frame, which comprises:

[0047] Main arm 5;

[0048] The auxiliary arm 1 is pivotally connected to the head 51 of the main arm 5. The auxiliary arm 1 has a storage position and a working position. In the storage position, t...

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Abstract

The invention discloses a folded boom and a crane. The folded boom comprises a main boom, an auxiliary boom, a pull rod, an auxiliary hoisting mechanism and a positioning mechanism, wherein the auxiliary boom is connected to the head part of the main boom in a pivoted mode and has a storage position and an operation position, and at the storage position, the auxiliary boom is positioned below the main boom; at the operation position, the auxiliary boom extends from the head part of the main boom to the front direction of the main boom; a first end of the pull rod is connected to the head part of the auxiliary boom in a pivoted mode, and a second end of the pull rod is detachably connected to the main boom when the auxiliary boom is positioned at the operation position; the auxiliary hoisting mechanism is used for moving the auxiliary boom so as to enable the auxiliary boom to be converted between the storage position and the operation position and comprises an auxiliary hoisting steel wire rope one end of which is connected to the head part of the auxiliary boom; the pull rod is provided with the positioning device, and the other end of the auxiliary hoisting mechanism penetrates through the positioning device and is connected to an auxiliary hoisting machine, so that the auxiliary hoisting steel wire rope is movably defined to the positioning device along the axial direction of the pull rod.

Description

Technical field [0001] The invention relates to the field of engineering machinery, and in particular to a folding boom and a crane with the folding boom. Background technique [0002] Folding booms are often used in cranes, see figure 1 , The traditional folding boom usually includes: the main arm 5; the auxiliary arm 1, the auxiliary arm 1 is pivotally connected to the head of the main arm 5, the auxiliary arm 1 has a storage position and a working position, in the storage position , The jib 1 is located below the main arm 5, in the working position, the jib 1 extends from the head of the main arm 5 to the front of the main arm 5; the pull rod 4, one end of the pull rod 4 is pivotally connected to the jib The other end of the head of 1 is detachably connected to the main arm 5 when the auxiliary arm 1 is in the working position. The jib 1 is usually deployed and retracted (converted between the storage position and the working position) of the jib 1 through the auxiliary hoist...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C23/62B66C23/64
CPCB66C23/68
Inventor 孙磊颜世军王平覃斌
Owner ZOOMLION HEAVY IND CO LTD
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