End door pressure logical control mechanism

Abstract

The invention discloses an end door pressure logical control mechanism and a control method thereof in the technical field of special vehicle outfitting. The mechanism comprises a bidirectional pressure control module and a feedback locking module which are connected with stroke starting ends and tail ends of a plurality of groups of end door oil cylinders and end door locking cylinders and are used for acquiring cylinder in-place opening and closing signals respectively, wherein the feedback locking module and the bidirectional pressure control module are connected to an electromagnetic reversing valve in sequence and a logical judgment signal is output; and a feedback end of the feedback locking module and an output end of the electromagnetic reversing valve are connected and an interlocking signal is output. According to the end door pressure logical control mechanism and a control method thereof, sequential action is automatically realized without sensing detection; and compared with an electrical appliance control system, more reliable sequential action can be realized. By simplifying the control structure, the failure rate of the system is greatly reduced, error operation can be effectively avoided, and the cost is saved.

Description

technical field [0001] The invention relates to a control mechanism and method in the technical field of special vehicle equipment, in particular to a tailgate pressure logic control mechanism and a control method thereof. Background technique [0002] The tailgate of the existing vacuum suction truck needs to perform multiple actions in sequence according to requirements, and each action must be performed in place before the next step can be performed. The existing action actuators are generally realized by the oil cylinder motion control system, and the next level of action can only be performed after a plurality of oil cylinders are operated sequentially and the stroke must be in place. Tailgate action control has very strict requirements on sequential actions. If one execution action is not completed, the next execution action will seriously damage the tailgate structure. The cost of electrical control is high, and the separation control method has low work efficiency an...

AI Technical Summary

Problems solved by technology

Solution, on the one hand, the design and manufacturing cost is relatively high

On the other hand, when an electrical fault occurs, the structure may be damaged if the next action is executed before the previous sequence action is completed.

For example, in the sequential action system of the tailgate of vacuum suction and exhaust vehicles, if the tailgate lift cylinder is executed because the tailgate lock cylinder cannot be fully opened, the tailgate will be damaged and deformed

Also, if the tailgate lock cylinder is not in place under the tailgate, it may cause the tailgate lock to fail to insert the tailgate lock pin, and seriously cause the tailgate to be deformed and damaged.

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