Non-impact net shaking device

Abstract

The invention relates to a non-impact net shaking device. The non-impact net shaking device comprises a box body, wherein the box body is fixed on a base plate, a transmission mechanism, an amplitude regulation mechanism, a connection mechanism, a lubrication system and a sliding rail device are mounted on the box body, eccentric weight balance wheels are mounted on the sliding rail device, the transmission mechanism comprises a decelerator, a main transmission shaft, a parallel shaft coupling, main transmission shafts of the eccentric weight balance wheels, and driven transmission shafts of eccentric balance wheels, the decelerator is mounted on a decelerator bracket, the eccentric weight balance wheels are mounted on the main transmission shafts of the eccentric weight balance wheels and the driven transmission shafts of the eccentric balance wheels, the decelerator is connected with a hollow shaft frequency conversion brake motor, the amplitude regulation mechanism is connected with an amplitude regulation servomotor, and a control system is mounted outside the box body. The non-impact net shaking device has the advantages that the frequency regulating range is wide, the amplitude is smooth, the paper evenness can be improved, and at the same time, the failure rate is low when the non-impact net shaking device is used.

Description

technical field [0001] The invention relates to the field of papermaking equipment, in particular to a non-impact screen shaker capable of adjusting the amplitude and making the breast roll run stably at high frequency. Background technique [0002] Formation of paper is a must for good appearance and good strength. Formation affects the balance of the average value of various physical properties of the paper, and is an important factor to improve the printing adaptability, impregnation and coating adaptability, and technical strength of the paper. By controlling the evenness of the paper well, it is possible to produce high-quality paper products with less raw materials. Fiber flocculation is the main factor causing poor evenness. The breast roll shaking system in the wire section produces a speed difference between the upper and lower layers of the stock flow, shearing and disturbing, which can effectively overcome fiber flocculation and improve evenness. The traditional...

AI Technical Summary

Problems solved by technology

The traditional common wire shaking system transmits the vibration to the wire table through the shaking box, driving the pulp to vibrate in the transverse direction of the breast roll of the paper machine, but its vibration frequency and amplitude are limited, and the effect on the high-speed paper machine is not obvious

Moreover, vibrations are generated in the vertical direction, which may cause jumping in severe cases

The mechanical wear is accelerated, the probability of fatigue fracture of the connecting bolts is high, and it is easy to cause the frame and the spring steel plate to break. When the shaking frequency is above 200 times / min, the failure rate of the equipment operation will increase significantly, which will seriously affect the stable operation and stability of the paper machine. Stability of product quality

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