| 摘要 |
A horizontal shaft impact crusher comprises a crusher housing (2) having an inlet (8) for material to be crushed, an outlet (10) for material that has been crushed, an impeller (4) being mounted on a horizontal shaft (6) in the crusher housing (2) and being operative for rotating around a horizontal axis, a curtain (28) against which material accelerated by the impeller (4) may be crushed, and an adjustment device (42) for adjusting the position of said curtain (28) relative to the impeller (4). The crusher housing (2) is provided with at least two guide rails (90) to which said adjustment device (42) is slidably connected, retaining means (92) which is arranged to hold, with a predetermined holding force, said adjustment device (42) in a crusher operation position relative to the guide rails (90), said adjustment device (42) being movable along said guide rails (90) from the crusher operation position and away from the impeller (4) in response to an excessive force being transferred from the curtain (28) to the adjustment device (42) and exceeding the predetermined holding force. |
