Crane fault diagnosis system and diagnosis method thereof

Abstract

A crane fault diagnosis system disclosed by the present invention comprises a fault acquisition module, a fault diagnosis module, a fault library module and a fault display module. The fault acquisition module is connected with a sensor of an electric control system and is used for acquiring a fault signal of a crane, the fault diagnosis module is respectively connected with an operating handle, adisplay and an electromagnetic valve of the electric control system and is used for generating a diagnosis signal according to the input given values of the operating handle and the display and the output of the electromagnetic valve, the fault library module is connected with the fault acquisition module and the fault diagnosis module and is used for generating the actual fault information according to the fault signal and the diagnosis signal, and the fault display module is connected with the fault library module and is used for receiving and displaying the actual fault information. The invention further discloses a crane fault diagnosis method. According to the crane fault diagnosis system and the diagnosis method thereof, the automatic diagnosis of the crane faults can be realized, the intelligent degree of the crane is effectively improved, and the technical level requirements for operators are reduced.

Description

technical field [0001] The invention relates to the technical field of cranes, in particular to a crane fault diagnosis system and a diagnosis method thereof. Background technique [0002] The reasons for the electrical faults of existing cranes are mainly divided into two types. The first is that the logical control process of the crane cannot be completed due to the lack of logical conditions. And component damage etc. caused by the crane's action is not performed. [0003] attached figure 1 It is a structural principle diagram of a crane electric control system in the prior art, as attached figure 1 As shown, the existing crane electric control system includes a controller, a display, an operating handle, a sensor and a solenoid valve; the operating handle and the display communicate with the controller through the CAN bus, and the controller is connected to the sensor and the solenoid valve respectively, and the controller passes through The solenoid valve controls th...

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Problems solved by technology

However, the above two methods of troubleshooting electrical faults require the operator to have a clear understanding of the control logic of the crane’s action mechanism, and have high technical requirements for the troubleshooting personnel; and the existing large-tonnage cranes have complicated working conditions There are many components. When the crane has an electrical fault, it is difficult to find out the cause of the fault in time by using the above two troubleshooting methods.

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