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Cantilever crane

A cantilever crane and cantilever technology, applied in the field of cantilever cranes, can solve the problems of long cantilever, bulky, unable to achieve self-locking, etc., and achieve the effect of locking safety and preventing collision

Pending Publication Date: 2018-04-17
浙江邦博机械有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The split-column cantilever crane with the above-mentioned structure, although its weight has been reduced and its shape has been reduced, is still relatively heavy and cannot realize self-locking, and the cantilever is long, and the self-gravity of the heavy object generates a large force through the cantilever. moment, which exerts great pressure on the mandrel

Method used

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Examples

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Embodiment

[0022] Example: such as Figure 1-5 As shown, a cantilever crane includes a column 1, a boom, a mobile trolley 5 moving along the boom and an electric hoist 6 mounted on the mobile trolley 5, and the boom is mounted on the column 1 through a rotating support. And rotate relative to the column 1. The rotation support includes an upper support plate arranged at the end of the boom and a lower support plate arranged on the column 1, and the upper and lower support plates are connected by a rotating shaft and a bearing.

[0023] Such as figure 1 , figure 2 and image 3 As shown, the boom is a telescopic structure, including a boom 2 and a balance arm 3. One end of the boom 2 is rotatably mounted on the column 1, and the balance arm 3 is slidably mounted on the boom 2 and moves along the boom 2. The length direction of moving, the driving mechanism 7 that drives the balance arm 3 to move is arranged between the moving trolley 5 and the balance arm 3, so that the balance arm 3 ...

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Abstract

The invention relates to a cantilever crane. The cantilever crane comprises a stand column, a jib, a movable trolley and an electric hoist, wherein the movable trolley moves along the jib; the electric hoist is mounted on the movable trolley; the jib has a retractable structure and comprises a cantilever and a balance arm; one end of the cantilever is rotatably mounted on the stand column; the balance arm is slidably mounted on the cantilever and moves in the length direction of the cantilever; a driving mechanism which drives the balance arm to move is arranged between the movable trolley andthe balance arm, so that the balance arm and the movable trolley move synchronously, and the movement directions of the balance arm and the movable trolley are opposite; and the stand column is further provided with a locking device for locking the position of the jib. The rotating angle of the jib is locked by the locking device on the stand column, a heavy object is effectively prevented from colliding with surrounding objects, by arrangement of the retractable jib, the centrifugal effect generated during rotation of the jib is reduced, and safe and stable locking is implemented.

Description

technical field [0001] The invention relates to the technical field of cranes, in particular to a cantilever crane. Background technique [0002] With the continuous development of the economy, cantilever cranes have been widely used in economic construction. The currently used cantilever crane has a relatively large structure size and weight. When lifting an object in a small space, it is easy to collide with the surroundings due to the swing of the cantilever. In addition, the use environment of the existing cantilever cranes is mostly on the ground or at a position with a low height from the ground. The cantilever is rotated by pulling the suspension ring at the front end of the cantilever. [0003] For example: the Chinese utility model with the application number 201120435809.9 discloses a split-column cantilever crane, including a column and a rotating arm. The rotating arm is provided with a lifting device, and the tail end of the rotating arm is installed on the upp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C23/04B66C23/16B66C23/76B66C23/84B66C23/94
CPCB66C23/005B66C23/04B66C23/163B66C23/76B66C23/84B66C23/94
Inventor 朱晓翔
Owner 浙江邦博机械有限公司
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