Arrangement for fastening a grinding segment

摘要

The fastening arrangement for the grinding segment (1) is intended especially for fastening a grinding segment, used in the production of ground wood pulp, to the backing body (4) of a grinding element. The arrangement comprises a first clamping element, such as bolt (3) with connection elements, such as head (16) and thread (13), by which the bolt is connected to the backing body (4) of the grinding element and accordingly to the grinding segment or segments (1) in order to produce the clamping force. To remove the change in clamping force on account of a change in temperature or to change the clamping force in the opposite direction, the arrangement comprises a second clamping element (2, 7). The second clamping element can be a plate (2) and/or a sleeve (7) which is arranged between the body of the connection element and/or the connection element and the grinding segments. The effect of the change in temperature on the length of the second clamping element (2, 7) in the direction of the clamping force causes a change in the clamping force between the backing body (4) and the segments (1), which change is opposed to the change of the clamping force which arises through the effect of the same change in temperature on the length of the bolt (3). <IMAGE>