Cable tensile resistance device based on two-dimension fuzzy control
A technology of fuzzy control and stretching device, applied in the field of control, can solve the problems of high cost and impossible real-time automatic adjustment, and achieve the effect of prolonging the service life, reducing the number of replacements and spare parts, and simple algorithm
Inactive Publication Date: 2013-01-02
BAOSHAN IRON & STEEL CO LTD
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Problems solved by technology
[0009] The above-mentioned technical scheme adopts the frequency conversion control technology. If this technical scheme is used for the transformation of the torque type cable reel of the existing equipment, the control method will be fundamentally changed, the cost is high, and there is no tension feedback part, the tension of the cable will be reduced. Still not auto-adjusting in real time
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Embodiment
[0056] The control device has been installed, debugged and operated according to the site conditions and requirements.
[0057] Step 1: Determine the upper and lower limits of the working voltage of the cable reel in the data input module according to the needs of the site. The site fully guarantees that the voltage that can be driven normally when the cable reel is full is VD=210V, and that the reel can be driven when the reel is empty. The voltage is V0=160V. The voltage within the working range is divided into 5 grades: 160V~170V is "very small", 170V~180V is "small", 180V~190V is "moderate", 190V~200V is "big", 200V~210V For "very large".
[0058] Step 2: Divide the actual cable pull force feedback information and voltage regulator output voltage feedback information into membership degrees, and the results are divided into "very small", "small", "moderate", "large", and "very large" on average files.
[0059] The feedback voltage of the tension sensor is a standard sig...
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The invention relates to a cable tensile resistance device based on two-dimension fuzzy control, and belongs to the field of controlling. The cable tensile resistance device comprises a PLC (Programmable Logic Control) unit, a torque motor control unit and a cable reel, wherein a cable tension sensor is arranged at a wire outlet end of the cable reel, a cable tension-voltage fuzzy control strategy table is arranged in the PLC unit, a signal output end of the tension sensor is connected with an I / O port of the PLC unit, and the I / O port of the PLC unit is correspondingly connected with an output voltage measuring end and an output voltage control input end of the torque motor control unit. According to the cable tensile resistance device disclosed by the invention, the PLC unit applies a needed output value to the control voltage input end of the torque motor control unit by inquiring and outputting the cable tension-voltage fuzzy control strategy table according to a feedback signal of tension forced on a cable and an output voltage feedback signal of the torque motor control unit, so that the rotational speed and torque output by a torque motor is automatically matched with the rotational speed and torque needed at the time, normal reeling and unreeling of a movable cable in a working process of a movable machinery are ensured, and the cable is avoided from deforming or breaking due to overlarge tension in a using process.
Description
technical field [0001] The invention belongs to the field of control, in particular to a retractable control device for a cable reel of a mobile machine. Background technique [0002] During the operation of large-scale electric mobile machinery, the working condition of the mobile cable reel directly affects the use safety and service life of the mobile cable, and then affects the normal operation of the mobile machine. [0003] At present, most cable reels are driven by torque motors. In this way, in order to meet the larger torque required to drive the reel when the cable is completely received on the reel, the torque of the motor is often adjusted to a large value. As the cable is gradually released, the torque required to drive the reel to rotate gradually decreases, but the output torque of the drive motor does not decrease accordingly. At this time, most of the torque is applied to the cable. Scattered from the reel, the drive of the reel is not to reverse and active...
Claims
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Inventor 赵宇明王保林杨继业何建群舒纳新祝建荣
Owner BAOSHAN IRON & STEEL CO LTD