Crawler crane and control system and method for get-off assembly and disassembly

Abstract

The invention discloses a crawler crane and a control system and method for get-off assembly and disassembly. The invention also discloses engineering machinery and a control method and a control system for get-off assembly and disassembly of the engineering machinery. The control system comprises a main frame and at least two telescopic cylinders used for jacking the main frame. The control method specifically comprises the following steps: detecting a levelness signal of the main frame under a current operating state in real time; judging whether the horizontal unbalance loading degree of the main frame is in an allowed unbalance loading range according to the levelness signal; and finally, outputting a control instruction for regulating the oil inlet quantity of the corresponding telescopic cylinders according to the judgment result. According to the invention, the labor intensity and operating difficulty of the operator are effectively reduced, a programmable logic controller is utilized in a maximized mode, intelligent operation and safety precautions are realized, and safe and reliable operation is guaranteed. A control mode of combining an electronic level meter and a controller is introduced, so that the current levelness of the frame is detected in real time, and the stress condition of each actuating mechanism is involved. When the stress requirements of the structural component are met, the working efficiency is improved to the maximal extent, and the complicated lifting operation is simple and intelligent.

Description

technical field [0001] The invention relates to the technical field of safety control, in particular to engineering machinery, a control system and a control method for dismounting and dismounting. Background technique [0002] Due to the large overall weight of the large-tonnage crawler crane, it needs to be disassembled into multiple parts to meet the transportation requirements during the long-distance transfer process. Among them, the crawler-type vehicle that is responsible for the walking of the whole vehicle often needs to be disassembled into multiple parts such as the crawler beam and the main frame. [0003] At present, during the assembly process of most crawler cranes in use, it is necessary to use the hydraulic outrigger cylinders around the frame to jack up the frame horizontally, and then install the left and right crawlers respectively. Generally, the number of hydraulic outrigger cylinders is four. In the prior art, the control of the hydraulic outrigger cy...

AI Technical Summary

Problems solved by technology

In the process of dismantling or loading, the operator usually operates manually. Because the four cylinders are independent executive components, there is an imbalance of the center of gravity when getting off the vehicle, which may cause rollover or force on the cylinder on one side of the outrigger. Risk of damage to components due to oversize

This must require the operator to have rich on-site experience and keen ability to distinguish, but it is quite difficult for novices to operate

[0005] In addition, because the operator's factors play a major role in the assembly process, the safety cannot be fully guaranteed. Whether it is a bubble level or the naked eye observation of the level of the frame, there are major safety hazards

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