| 摘要 |
<p>A cutting chain 9 for cutting mineral and metal materials comprises central chain links 30 which may have projections 42 and also may comprise at least one drive link with a drive tooth. The chain further comprises lateral connecting links 29, 40, at least two of which are located adjacent to each other perpendicular to the direction of the cutting chain 9 direction of motion 12. The first connecting links 29 positioned adjacent to one another in the direction of the chain travel 21 may be connected to each other by a common cutting element 42. All connecting links may be either first 29 or second 40 connecting links, and at least one third of the connecting links may be second connecting links 40. The connecting links 29, 40 are connected to the central chain links 30 by connecting pins 31. These pins pass through a first aperture in the lateral links 29, 40 and a second aperture in the central chain link 30. In the region 49 between adjacent connecting links 29, 40 the diameter of the connecting pin 31 is greater than the diameter of the first apertures so that the chain cannot be opened by removing a riveted end of a connecting pin they are held in place by the enlarged diameter of the central section 49 and the common cutting element 42. The second connecting links 40 are preferably separate so that they can be removed, allowing opening of the chain. To enable repairs the cutting elements can be broken off and the connecting pin heads 51 removed to allow for the removal of the link.</p> |
