Air door gear clearance compensation device and method for bulk curing barn controller

Abstract

The invention discloses an air door gear clearance compensation device and method for a bulk curing barn controller, relating to a bulk curing bran controller. As a reducing gear has clearances, even if a direct current motor rotates for the same angle, the opening angle / the closing angle of an air door is different either, so that the humidity control deflection is increased easily. The air doorgear clearance compensation device is characterized by comprising a direct current motor current sampling unit and a central processing unit, wherein the central processing unit is provided with a gear clearance compensation unit, and a time computing unit which is connected with the direct current motor sampling unit and the gear clearance compensation unit and is used for computing the work time of a direct current motor; the gear clearance compensation unit is used for prestoring a motor no-load current value; when a sampling value obtained by the direct current sampling unit is smaller than or equal to the motor no-load current value, whether the reducing gear has gear clearances in the running process is judged; and the time computing unit prolongs the work time of the direct motor to compensate the gear clearances. According to the invention, the air door can be accurately opened / closed to a certain degree, so that the defection to the angle of the air door can be omitted.

Description

technical field [0001] The invention relates to a flue-cured tobacco controller for a dense barn. Background technique [0002] With the continuous improvement of tobacco leaf quality and the transformation of flue-cured tobacco production organization, flue-cured tobacco production is gradually developing in the direction of scale, intensification, and specialization. my country's curing barn equipment is also constantly innovating and developing. Intensive curing barns have become sustainable tobacco production. Development direction under the new situation. The intensive barn controller needs to control the temperature and humidity of the barn. The principle of humidity control is to control the opening of the air door to adjust the humidity. The dense barn controller controls the DC motor to drive the reduction gear to rotate, so that it can be used as a damper to close and open. When the previous operation (opening or closing) of the damper is different from the next o...

AI Technical Summary

Problems solved by technology

When the previous operation (opening or closing) of the damper is different from the next operation, because there is a gap in the reduction gear, even if the DC motor rotates at the same angle, the opening / closing angle of the damper is different. Humidity control is very unfavorable, and it is easy to cause the deviation of humidity control to increase significantly

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