Reach stacker crane and its control method and system

Abstract

The embodiment of the invention discloses a front lifting crane and a control method and system of the front lifting crane. The control system comprises a main controller, a display, an expansion controller, a length sensor, an angle sensor, an engine controller, a gearbox controller, an oil pressure sensor and a detection sensor, wherein the display, the expansion controller, the length sensor, the angle sensor, the engine controller and the gearbox controller are respectively connected with the main controller through a CAN; the oil pressure sensor and the detection sensor are respectively connected with the expansion controller through the CAN. The oil pressure sensor, the length sensor, the angle sensor, the detection sensor, the engine controller and the gearbox controller collect working pressure information of a hydraulic system in a hydraulic cylinder of the crane, length information and angle information of a lazy arm, working status information of all units in the control system, operation condition information of an engine and the operation condition information of a gearbox and transmit all the information to the main controller respectively. The main controller sends the received information to the display for real-time display and sends corresponding failure warning information to the display for display when a failure happens. According to the front lifting crane and the control method and system of the front lifting crane, self diagnosis of failure information during operation of the crane can be achieved.

Description

technical field [0001] The invention relates to control technology, in particular to a front load crane and its control method and system. Background technique [0002] The fault self-diagnosis technology in the field of construction machinery is a very important technology, and it is an important index to evaluate the advancement of construction machinery control systems. Using the fault self-diagnosis technology, the effectiveness of the internal control links of the system is always monitored when the control system is running. When a fault occurs, it will stop running immediately and display the fault location that needs to be dealt with, so as to ensure the reliability of the control system itself and avoid quality problems. and safety accidents. [0003] In the prior art, only the force limiter control system has a simple fault self-diagnosis function. For the judgment of the faults of the crane's driving and operation control system, it can only be checked one by on...

AI Technical Summary

Problems solved by technology

This requires troubleshooting personnel to be very familiar with the configured operating system and have rich practical experience in solving problems, otherwise it is difficult to troubleshoot the problems existing on site

In addition, for the adjustment or correction of the control program and related control parameters, special debugging tools or computer equipment must be connected externally, and only professional and technical personnel are required to have the authority to change or adjust the related control program. process changes or improvements

Therefore, the commissioning and maintenance efficiency after the crane breaks down is low, which seriously affects the reliability of the whole machine and the operation efficiency of the whole machine of the reach lift crane.

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