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Crane back-tilting-preventing device with changeable gravity center and crane comprising crane back-tilting-preventing device

A crane and anti-backward tilting technology, which is applied to cranes and other directions, can solve the problems of high cost and complicated structure of the backward tilting device, and achieve the effects of simple structure, easy installation and cost saving.

Inactive Publication Date: 2012-06-13
SHANGHAI SANY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the above-mentioned problems in the prior art, the technical problem to be solved by the present invention is that the existing anti-backward device has complex structure and high cost

Method used

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  • Crane back-tilting-preventing device with changeable gravity center and crane comprising crane back-tilting-preventing device
  • Crane back-tilting-preventing device with changeable gravity center and crane comprising crane back-tilting-preventing device
  • Crane back-tilting-preventing device with changeable gravity center and crane comprising crane back-tilting-preventing device

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Embodiment Construction

[0021] The present invention will be explained in detail below in conjunction with the accompanying drawings and embodiments.

[0022] Such as figure 1 The crane anti-rolling device with a variable center of gravity of the preferred embodiment of the present invention includes a support rod 1, a lower section arm 2 and a tower arm tip 3, and the lower section arm 2 and the tower arm tip 3 pass through the first hinged end 4 hinged.

[0023] The support rod 1 includes a second hinged end 11 and a sliding end 12 , and the second hinged end 11 is rotatably hinged to the lower joint arm 2 .

[0024] A slideway 31 and a groove 32 are provided on the tower arm tip 3 . The sliding end 12 of the support rod 1 is in contact with the slideway 31 and can slide on the slideway 31 . The groove 32 is provided between the sliding end 12 and the first hinged end 4 , and the distance between the sliding end 12 and the first hinged end 4 is greater than or equal to the distance between the g...

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Abstract

The invention provides a crane back-tilting-preventing device with a changeable gravity center and a crane comprising the crane back-tilting-preventing device. The crane back-tilting-preventing device comprises a support bar, a lower-joint jib and a tower arm tip, wherein the lower-joint jib and the tower arm tip are hinged through a first hinging end, the support bar comprises a second hinging end and a sliding end, the second hinging end is rotatably hinged with the lower-joint jib, the tower arm tip is provided with a runner and a groove arranged on the runner, the sliding end of the support bar is in contact with the runner and can slide on the runner, and the distance between the sliding end and the first hinging end is larger than or equal to the distance between the groove on the runner and the first hinging end. The crane back-tilting-preventing device with the changeable gravity center, disclosed by the invention, has the advantages of simple structure and simple and convenient installation, and does not need to additionally provide an energy source by utilizing self-gravity of the back-tilting-preventing device so as to save the cost.

Description

technical field [0001] The invention relates to an anti-dipping device, in particular to an anti-dipping device for a crane with a variable center of gravity and a crane including the device. Background technique [0002] The all-terrain crane includes the main boom, the tower boom connected to the main boom and the lower jib. When the tower jib changes at a large angle, if the lower jib is not supported by the anti-backward device, the entire tower jib will tilt backward, which may cause In the event of a rollover accident, anti-tilt is an important structural component to ensure the amplitude of the tower arm. [0003] The function of the jib anti-tilt device is to push the jib to death when the jib reaches the maximum working elevation angle during work, and it is a must-have safety device for cranes with jib pitch luffing mechanism. Existing jib anti-tilt device can be divided into two-end hinged type and one end hinged-end free type according to its installation method...

Claims

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Application Information

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IPC IPC(8): B66C23/88
Inventor 张扬顾珂韬张三民孙开胜
Owner SHANGHAI SANY TECH
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