Car lifting jack maintenance system

Abstract

The invention relates to the field of motor train unit maintenance, and discloses a car lifting jack maintenance system. The car lifting jack overhauling system comprises a through type foundation pit; a bogie lifting device, a car body lifting device and a transition supporting device are arranged in the through type foundation pit; the bogie lifting device comprises a lifting rail; the transition supporting device comprises a fixed rail; and the lifting rail and the fixed rail can form a continuous rail for a to-be-overhauled motor train unit to walk. When the system adapts to a new motor train unit model, only the bogie lifting device and the transition supporting device need to be disassembled, and new parameters are designed according to the new vehicle type for assembly. The system is easy to transform, can be compatible with new vehicle types, and has a wide application range. Due to the fact that the through type foundation pit is a whole foundation pit, a civil foundation between original foundation pits does not need to be excavated, damage to electrical connection lines between the original foundation pits is avoided, the reconstruction cost is saved, and the construction period is shortened.

Description

technical field [0001] The invention relates to the field of inspection and maintenance of EMUs, in particular to a system for inspection and maintenance of locomotives. Background technique [0002] In the operation of the EMU, in order to ensure the safe operation of the EMU, the EMU has a certain maintenance cycle. After the EMU reaches the specified operating mileage, the bogie needs to be replaced and repaired. At this time, the entire EMU needs to be lifted. Raise to a suitable height, remove the bogie, and the repaired bogie needs to be reinstalled to the EMU. This operation requires the use of a crane. [0003] When designing the maintenance system of the pit-type vehicle crane used for the maintenance of the existing EMU, it is usually based on parameters such as the wheelbase, fixed distance, and vehicle length of the operating vehicle to set up multiple independent foundation pits of different sizes. Set up single or multiple bogie lifting devices. There are mult...

AI Technical Summary

Problems solved by technology

[0004] The problem existing in the maintenance system of the existing trolley locomotive is that once a new type of EMU is added, its wheelbase, fixed distance, vehicle length and other parameters are different from those of the existing EMU, and the existing trolley locomotive maintenance system cannot be compatible with the new model It is necessary to change the parameters such as the length of the bogie lifting device, and even excavate the ground between the foundation pits to meet the needs of new models. normal operation

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