Counterweight control method of tire crane with movable counterweight system

Abstract

Provided is a control method for a balance weight of a tire crane with a movable balance weight system. According to the method, a gravity sensor and a tilt angle sensor are detected, a tilt angle and a sling load are converted to moment, a movable balance weight device is started, and the rotation angle of the movable balance weight device is detected for feedback. By means of the steps, balance control over a movable balance weight of the tire crane is achieved. Alternatively, spiral landing legs are arranged at the four corners of a crane body, pressure sensors used for detecting pressure exerted on the spiral landing legs are arranged on the spiral landing legs, the difference values between the pressure sensors are compared, the movable balance weight device is started, and the rotation angle of the movable balance weight device is detected for feedback, and by means of the steps, balance control over the movable balance weight of the tire crane is achieved. According to the control method for the balance weight of the tire crane with the movable balance weight system, by the adoption of the steps, automatic control over the movable balance weight can be achieved, the movable balance weight can be matched with the moment of the sling load, moment balance is achieved, construction safety is ensured, and the service life of equipment is prolonged.

Description

technical field [0001] The invention relates to the field of tire cranes, in particular to a tire crane counterweight control method with a movable counterweight system. Background technique [0002] The tire crane is a boom rotating crane that uses a tire-type chassis to travel. It is composed of a car body part and a turntable part, and a boom and an operating room are set on the turntable. The tire crane has the advantages of good mobility, convenient transfer, efficient construction and safety. The problem that exists is, during hoisting construction, turntable should be provided with counterweight relative to the other end of boom, to keep balance with hoisting weight, and along with the increase of hoisting capacity, counterweight also needs to increase correspondingly. In this way, the dead weight of the tire crane is higher, which affects the driving mobility. How to reduce the dead weight while increasing the hoisting weight has always been a technical problem for...

AI Technical Summary

Problems solved by technology

The problem is that during the lifting construction, the other end of the turntable relative to the boom should be equipped with a counterweight to keep a balance with the lifting weight, and as the lifting capacity increases, the counterweight also needs to be increased accordingly

[0003] There is also a plan to set the movable counterweight, but the manual control of the movable counterweight is usually used, which has certain safety hazards. At present, there is no automatic control of the movable counterweight.

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