Electrical control system of vertical conveyor with rotating platform

Abstract

The invention relates to a vertical elevator electric controlling system with a rotary platform, which relates to the technology field of mechanical automatic controlling. The invention is mainly provided with a programmable controller, namely a PLC main controller, which comprises a transducer driving motor, the operating command of the transducer is output to the switch signal input terminal of the transducer from the output point of switch signal output module SM322 of the PLC; the PCL controlling part receives spot signals, judges based on logic, controls scheme according to reservation, the transducer controls the motor to fulfill regulated motions; a platform rotary position sensing system and a platform lifting position sensing system are also provided. The invention is characterized by being able to realize high speed operation and accurate contraposition controlling of large inertia mechanical system, has the advantages of fast speed, accuracy, safety, reliability and good operating performance, etc., as well as realizes automatic operation and management. The invention also has wide applications, and is suitable for being used on various large inertia vertical elevators with rotary platforms, in particular for being used in vertical lifting drum type stereo parking garage.

Description

technical field [0001] The invention relates to the technical field of mechanical automatic control. Background technique [0002] The existing control systems for vertical lifting mechanical three-dimensional parking garages mainly include special computer control, general industrial control computer control, and programmable controller control. Wait for several ways. The special-purpose computer control system is generally composed of a single-chip microcomputer or a single-board computer plus a special interface circuit. The manufacturing cost is low, but the design cost is high, and it is difficult to achieve high reliability; the general industrial computer control system is simple in design and good in versatility, but The real-time performance is poor, and the stability of the software is also poor; although the cost of the programmable controller control system is high, the reliability and real-time performance are very good, and it is especially suitable for the co...

AI Technical Summary

Problems solved by technology

The special-purpose computer control system is generally composed of a single-chip microcomputer or a single-board computer plus a special interface circuit. The manufacturing cost is low, but the design cost is high, and it is difficult to achieve high reliability; the general industrial computer control system is simple in design and good in versatility, but The real-time performance is poor, and the stability of the software is also poor; although the cost of the programmable controller control system is high, the reliability and real-time performance are very good, and it is especially suitable for the control of mechanical parking

The action drive mode is crucial to the speed and reliability of the garage access car. The direct start-stop control circuit is simple and low in cost, but it is only suitable for occasions with very simple actions and low action speeds; the speed drive mode has good dynamic characteristics and positioning The precision is high, but the system composition is complex and the cost is high, and the speed servo system is closed-loop control, the transmission part must have the conditions for installing a rotary encoder, and the adaptability is poor; the frequency conversion speed control drive has a wide range of applications, moderate cost, and is widely used, but Accurate positioning is very difficult when the speed of the large inertia system is high, and the control is difficult

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