Multi-signal fusion intelligent anti-jamming and constant-current control method and system for spiral oil press

By using a multi-signal fusion intelligent control method, constant pressure pressing and fully automatic anti-jamming of the screw oil press are achieved, solving the problems of low automation, unstable oil yield and high misjudgment rate in the existing technology, thus improving production efficiency and equipment life.

CN122260845APending Publication Date: 2026-06-23钟标能
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Patent Information

Application Number
CN202610372395.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-03-25
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

The existing screw oil press has a low degree of automation, unstable oil yield, is prone to jamming, has a high misjudgment rate, poor production continuity, and high equipment wear and tear. It also cannot achieve constant pressure pressing and intelligent anti-jamming.

Method used

The intelligent control method adopts multi-signal fusion. By collecting and preprocessing the current, torque and speed signals of the screw oil press in real time, constant current control is achieved by using an adaptive PID control algorithm. In the event of a jamming fault, fully automatic material unloading and recovery are performed. The accuracy is ensured by combining multi-signal fusion judgment.

Benefits of technology

Increase oil yield by 3%-8%, reduce fault misjudgment rate to below 5%, achieve fully automatic recovery, reduce mechanical impact on equipment, extend equipment life by 15%-20%, save energy by 8%-12%, and improve production efficiency by 20%.

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Abstract

The invention discloses a multi-signal fusion spiral oil press anti-jamming and constant-current control method and system, and belongs to the field of agricultural machinery automation. In order to solve the problems of low control precision, high fault misjudgment and need of manual intervention in the prior art, the method comprises the following steps: collecting and preprocessing current, torque and rotating speed signals of a motor; actual current is compared with a target value through self-adaptive PID, and the rotating speed is adjusted to achieve constant-current (constant-voltage) control; fusing four parameters (a current over-threshold value + a change rate over-threshold value + a torque over-threshold value + a rotating speed low-threshold value) to judge jamming; and if stuck, the motor is controlled to reversely return materials, and smooth restarting is performed after pause. The system comprises a signal detection module, a core control module, an execution driving module and a man-machine interaction module. The oil extraction rate is increased by 3%-8%, the misjudgment rate is reduced to below 5%, the downtime is shortened to the second level, the service life of equipment is prolonged, energy is saved, and the method is suitable for various spiral oil presses.
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