High-speed shaking box for fourdrinier paper machine

Abstract

The invention discloses a high-speed shaking box for a fourdrinier machine. The high-speed shaking box comprises an outer box body, an inner box body, a servo drive mechanism, a transmission gear group, a vibrating mechanism and a shaking rod, wherein the inner box body is arranged inside the outer box body; the vibrating mechanism is arranged at the middle part of the inner box body; one side of the vibrating mechanism is connected to the servo drive mechanism through the transmission gear group; the servo drive mechanism is arranged on the top part of the inner box body; one side of the inner box body is externally connected to a breast roll of the fourdrinier machine. In the high-speed shaking box, a drive motor and the vibrating mechanism are connected by adopting a gear connecting mode, so that the connecting mode of adopting an eccentric shaft coupler in a traditional high-speed shaking box is replaced, the reliability of equipment connection is improved, and operational stability of the equipment is also improved. Meanwhile, the gear connecting mode can efficiently avoid the phenomenon that the eccentric shaft coupler needs to be replaced frequently, the manufacturing cost and maintaining cost of the equipment are reduced efficiently, and a variable-speed gear can reduce influence from speed fluctuation of the drive motor to the operation of the shaking box.

Description

technical field [0001] The invention relates to the technical field of pulping and papermaking, in particular to a high-speed shaking box for a fourdrinier paper machine. Background technique [0002] In the field of pulp and papermaking, fiber flocculation is the main factor causing poor paper formation, and the orientation of fibers in the Fourdrinier part easily leads to excessively high aspect ratio and transverse shrinkage of paper. The vibrating system of the wire part can make the upper layer and the lower layer of the pulp flow produce speed difference, shear and disturb, so as to effectively overcome the fiber flocculation, ease the orientation of the fiber, and improve the evenness and the aspect ratio of the paper. The traditional wire shaking system transmits the vibration to the wire table through the shaking box, which drives the pulp to vibrate laterally on the paper machine. However, in practical applications, its vibration frequency and amplitude are limited...

AI Technical Summary

Problems solved by technology

[0004] In the current high-speed shaking box, the drive motor is generally installed on the outer surface of the outer box. When in use, the inner box of the high-speed shaking box swings back and forth along the axis of the breast roller in the outer box, and the outer box is fixed. There is relative motion between the drive motor and the inner box of the shaking box, so that a fixed connection cannot be used between the drive motor and the inner box. In the current high-speed shaking box, the drive motor is connected to the inner box through an eccentric coupling. The drive gear shaft in the body is connected, but in actual use, the high-speed shaking box with this structure often has the following problems: Due to the limitation of the structure, the service life of the eccentric coupling is short, the failure rate is high, and the price is expensive. This greatly increases the manufacturing cost and maintenance cost of the equipment, which is not conducive to the control of papermaking costs; on the other hand, the use of the coupling will completely transmit the speed fluctuation of the motor to the shaking box device, affecting the stability of shaking

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