公开(公告)号：US20240328085A1

公开(公告)日：2024-10-03

申请号：US18740670

申请日：2024-06-12

申请人： VALMET AB

发明人： Robert SHORT

IPC分类号： D21D1/30

CPC分类号： D21D1/303

摘要： An accessory is provided for a disc refiner that is for refining lignocellulosic material and includes at least two refiner discs, at least one of which is a rotor refiner disc, a motor, and a rotation shaft assembly that includes (i) a rotation shaft, (ii) a shaft housing, (iii) at least one bearing between the shaft housing and the rotation shaft for allowing rotation of the rotation shaft within the shaft housing, and (iv) at least one ring-shaped locknut that encircles the rotation shaft, is configured for holding the at least one bearing in place on the rotation shaft, and includes notches for a tool to grip when attaching the locknut in the rotation shaft assembly. The accessory is configured to be attached to the locknut and includes at least one covering part configured to at least partly cover the notches of the locknut when attached to the locknut.

公开(公告)号：US20240068161A1

公开(公告)日：2024-02-29

申请号：US17894384

申请日：2022-08-24

申请人： VALMET AB

发明人： Robert SHORT

IPC分类号： D21D1/30

CPC分类号： D21D1/303

摘要： A method for updating a disc refiner by at least partly covering notches of a locknut in the disc refiner and an accessory for a disc refiner Said disc refiner comprising a motor and a rotation shaft assembly, wherein said rotation shaft assembly comprises a rotation shaft, which is connecting the motor and a rotor refiner disc of the disc refiner for driving rotation of the rotor refiner disc from the motor, said rotation shaft assembly further comprising at least one bearing, which is provided between a shaft housing and the rotation shaft for allowing rotation of the rotation shaft within the shaft housing, said rotation shaft assembly further comprising at least one ring-shaped locknut, which is encircling the rotation shaft and configured for holding the at least one bearing in place on the rotation shaft, said locknut comprising notches for a tool to grip when attaching the locknut in the rotation shaft assembly, wherein said accessory is configured for being attached to the locknut and comprises at least one covering part configured for at least partly covering said notches of the locknut when attached to the locknut.