A kind of hydraulic system of AGV trolley, trolley and working method thereof

Abstract

The invention discloses a hydraulic system of an AGV trolley. The hydraulic system comprises a hydraulic pump and a hydraulic oil tank; an outlet of the hydraulic pump is at least provided with four lifting loops, four steering loops and four traveling loops; each lifting loop comprises a first reversing valve hydraulic lock and a lifting hydraulic cylinder; each steering loop comprises a second reversing valve, a steering motor and a first balance valve; each traveling loop comprises a third reversing valve, a traveling motor and a second balance valve; and a safety valve and an unloading valve are connected between an oil outlet of the hydraulic pump and the oil tank in parallel. The invention further discloses the AGV trolley provided with the hydraulic system, and an implementation method of the trolley. All actions of the AGV trolley are achieved through full hydraulic control, the control precision is high, the bearing capacity is strong, the structure size is small, in addition, a large cavity and a small cavity of each lifting hydraulic cylinder are provided with pressure valves, the mechanical mechanism is prevented from being damaged, and meanwhile, the effect that more energy is saved is achieved by arranging the unloading valves.

Description

technical field [0001] The invention belongs to the field of AGV carrying trolley equipment, and in particular relates to a hydraulic system, trolley and working method of an all-round mobile lifting AGV trolley. Background technique [0002] The demand for modern intelligent storage management systems and intelligent parking garages is increasing day by day, and the AGV trolleys carried by cars are also developing rapidly. AGV carrying trolleys have become an important way to realize modern intelligent parking garages, and they also play a pivotal role in modern intelligent warehouse management systems. At present, intelligent storage and intelligent parking garages at home and abroad are still not widely used, and there are many technical difficulties that have not yet been overcome. The motion flexibility of AGV trolley still has a large room for improvement, so improving its motion flexibility and motion reliability is crucial to its work efficiency, and it is also an im...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the existing AGV cars use the car steering movement mechanism, which has good stability but insufficient flexibility and low efficiency. There are certain application defects in storage, garages and other places that require high efficiency and limited space.

On the other hand, the AGV car with three universal wheels and two pairs of mecanum wheels has high cost, is not suitable for heavy loads, cannot be used for car transportation, and is difficult to move accurately horizontally, vertically and on curved tracks , which limits its application in the automotive field

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