| 摘要 |
<p>A weak link for installation in a chain or rope, comprising two end attachments (1, 2) connected to a tension bolt (3) and a breaking element (5). One or more annular cylinder spaces are arranged co-axially with the tension bolt (3), and these annular cylinder spaces have passages (10, 10'', 10''', 10'''') for the supply of pressurized oil from a common reservoir. The axial forces from the annular cylinder spaces are transmitted from the pistons (4, 6, 8) and bottoms (1, 7, 9) to the end attachments (1, 2) via the tension bolt (3) and the breaking element (5). The breaking element may be a washer provided with a concentric, circular limitation of the contact surfaces on both sides, however such that the contact surface of one of the sides lies immediately inside said limitation while the other lies immediately outside the limitation. The breaking element may optionally be a breaking pin (5) extending through an end attachment (2) and a tension bolt (3), or a tension rod (5) where a neck in its cylindrical part has been weakened in order to constitute a defined breaking zone.</p> |
