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Crane as well as forward tipping preventing protection method and device thereof

A technology for protection devices and cranes, which is applied to cranes and other directions, can solve problems such as easy tipping of cranes, and achieve the effect of easy tipping, high efficiency, and simple operation

Active Publication Date: 2013-02-06
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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  • Crane as well as forward tipping preventing protection method and device thereof
  • Crane as well as forward tipping preventing protection method and device thereof
  • Crane as well as forward tipping preventing protection method and device thereof

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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 as well as a forward tipping preventing protection method and device thereof. The method comprises the following steps of: computing the maximum permissible running speed of the crane; computing the maximum permissible RPM (revolutions per minute) of an engine of the crane according to the maximum permissible running speed; and controlling the actual RPM of the engine to be not more than the maximum permissible RPM, wherein the RPM of the engine is easy to control, the running speed of the crane is controlled by controlling the RPM of the engine, and control is simple to operate. The crane, the method and the device have the following beneficial effects that the actual RPM of the engine is controlled to be not more than the maximum permissible RPM by computing the maximum permissible running speed of the crane and then computing the maximum permissible RPM of the engine of the crane according to the maximum permissible running speed; the control method is simple; and the problem in the prior art that the cranes are easy to roll over forward in the running process can be effectively solved.

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 Applications(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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