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A crane and its anti-overturn protection method and device

A crane and center of gravity position technology, applied to cranes and other directions, can solve problems such as easy tipping of cranes, and achieve the effect of easy tipping, simple control method and high efficiency

Active Publication Date: 2014-10-15
SANY MARINE HEAVY IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention aims to propose a crane and its anti-overturning protection method and device, so as to solve the problem that the crane is easy to tip over during the running work in the prior art

Method used

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  • A crane and its anti-overturn protection method and device
  • A crane and its anti-overturn protection method and device
  • A crane and its anti-overturn protection method and device

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Embodiment Construction

[0077] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be pointed out that the description and sequence of specific structures in this section are only descriptions of specific embodiments, and should not be considered as limiting the protection scope of the present invention.

[0078] Please refer to figure 1 , figure 1 It is a block flow diagram of a crane anti-overturn protection method of the present invention, including:

[0079] Step 1, calculating the center of gravity position of the crane;

[0080] Step 2, calculating the maximum allowable travel speed of the crane during travel according to the maximum braking acceleration of the crane brake, the preset maximum braking distance of the crane and the position of the center of gravity of the crane;

[0081] S...

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Abstract

The invention relates to the technical field of cranes, and discloses a crane and its anti-overturn protection method and device, wherein the crane and its anti-overturn protection method include: calculating the maximum allowable travel speed of the crane; The traveling speed calculates the maximum allowable rotational speed of the engine of the crane, the rotational speed of the engine is easy to control, and the operation is simple to control the traveling speed of the crane by controlling the rotational speed of the engine; the actual rotational speed of the control engine is not greater than the maximum permitted rotational speed. By calculating the maximum allowable speed of the crane, and then calculating the maximum allowable speed of the crane engine through the maximum allowable speed, and then controlling the actual speed of the engine not to exceed the maximum allowable speed, the control method is simple and can effectively solve the problem of the crane in the prior art. The problem of easy forward tipping in the middle.

Description

technical field [0001] The invention relates to the field of cranes, in particular to a crane and its anti-overturn protection method and device. Background technique [0002] The position of the center of gravity of the port mobile crane (represented by the "container front stacker crane") and the stability of the vehicle will vary with the angle of the boom, the pitch angle speed of the boom, the extension length of the boom, the weight of the hanging box, the speed of the vehicle, and the ground. In the process of driving and stacking operations, there is a possibility of poor longitudinal stability leading to forward tipping. During the driving process, stepping on the brake may cause the crane's poor stability and the braking torque is too large, resulting in a large forward tilting moment of inertia, which makes the rear wheel of the crane off the ground, and even the whole vehicle tilts forward. A tip-over accident has occurred. [0003] If you rely entirely on the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C23/88
Inventor 彭国成李翠英叶明松
Owner SANY MARINE HEAVY IND
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