Electric self-driving shear fork lifting device and control method thereof

• Main Authors: HE SAIQIAN, LI HUA, GE JINGZHEN, CAO LINGHUI, SHEN LI
• Format: Patent
• Language: Chinese; English
• Published: 04.09.2018
• Subjects: CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; HAULING; HOISTING; HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDEDFOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCEDIRECTLY TO THE SURFACE OF A LOAD; LIFTING; PERFORMING OPERATIONS; TRANSPORTING

The invention discloses an electric self-driving shear fork lifting device and a control method of the electric self-driving shear fork lifting device. A control circuit of the electric self-driving shear fork lifting device comprises a controller, a main contactor KM1, a first pump contactor KM2, a second pump contactor KM3 and a steering contactor KM4. The controller has two working modes of a platform mode and a ground mode, a port P15-1 of the controller is a platform mode port, a port P12-1 is a ground mode port, and the platform mode and the ground mode are switched by a key switch SH. The terminal M1- and the terminal M2- of the controller are connected in series to provide the negative pole of a lifting pump MP, 24V power is provided by the positive pole by connecting two groups ofdirect-current 12V batteries in series, and the manner is different from a traditional manner of using only one group of 12V power, so that the long-term unbalanced use of the two groups of batteriesis avoided, and the servi