Double-column climbing platform control method and system

Abstract

The invention provides a double-column climbing platform control method and system. The method comprises the steps: S1, judging whether a platform reaches a lower limiting calibration position or not;if not, directly entering the next step; if yes, initializing the pulse, and then extracting the next step; S2, calculating adjusting frequency and adjusting acceleration and deceleration time according to the difference value of the two pulse numbers; and S3, adjusting the output frequency and the acceleration and deceleration time of the frequency converter according to the adjustment frequencyand the adjustment acceleration and deceleration time, and eliminating the difference between the two pulse numbers until the two pulse numbers are the same and the platform is flat. The method has the beneficial effects that the slip frequency between the two ends of the platform can be eliminated, drastic changes cannot be generated, the stability of the changes is guaranteed, and then the stability of the platform is guaranteed.

Description

technical field [0001] The invention relates to the technical field of construction machinery, in particular to a control method and system for a double-column climbing platform. Background technique [0002] The climbing platform of construction machinery is commonly used in the outer walls of high-rise buildings. The climbing platform can be up to 40 meters in length and is lifted by double columns. Both ends of the platform are equipped with frequency converters and motors, and the rise and fall of the platform are controlled through one end. In the application, due to the difference in the slip of the motors at both ends, the different loads at the two ends, and the difference in the response time of the frequency converters at the two ends, the climbing platform will tilt when it is going up or down, especially in the state of acceleration, deceleration and high-speed operation. It is very serious, and eventually leads to excessive inclination angle of the platform, mec...

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Problems solved by technology

[0003] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a control method and system for a double-column climbing platform, which is used to solve the problems in the prior art due to differences in motor slips at both ends, different loads at both ends, and The difference in the response time of the frequency converter causes the climbing platform to tilt when it is going up or down. Especially in the state of acceleration, deceleration and high-speed operation, the tilt is very serious, which eventually leads to the problem that the platform tilt angle is too large, the machine is stuck, and the climbing column is deformed.

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