| 摘要 |
<p>A mechanical seed meter having a stationary housing (10) and a rotatable bowl (34). The stationary housing (10) is provided with a first axial wall (22), an outer radial wall (26) and a flexible inner radial wall (24). The bowl (34) is provided with seed receiving cells (38) that form a second axial wall (38) for trapping single seeds in the seed trapping area (28). A flexible and resilient insert (48) together with an axially extending flexible member (42) like a brush removes excess seeds from the seed receiving cells (38) as they pass through the seed puddle before entering the seed trapping zone (28). The seed slides along the radial outer wall (26) by centrifugal force until it enters the outlet area from which the outer radial wall (26) becomes part of the outlet (16) and the metered seed is deposited through the outlet (16) to a seed tube.</p> |
