| 摘要 |
A Hammer mill, comprising discs (1) mounted on a drive shaft (2), crosspieces (3) for spacing apart the discs (1), hammers (4) mounted between the discs (1) at intervals defined by the crosspieces (3) and spindles (5) for swingably mounting the hammers (4) and passing through the discs (1). A device (6) is provided for selectively individually locking the hammers (4) in a retracted position in the drum which drives the hammers (4), for releasing the hammers for outward swinging. The locking device is a fluid-actuated peg (7) insertable in and withdrawable from a hole (9) in each hammer.
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