H4-DV12A torques specified in the catalog can be permanent Helical gear unit H4

Flender/Flender Gear Units/Helical gear unit H4

includes simple graduated slide and volumetric measurers, whereas the second category would have devices such as automated weighing scales and owbalancers that work on the basis of weight. 3.1.1.1 Volumetric Devices 3.1.1.1.1 slides. Simple graduated slides are most commonly used in the milling plants in North America. The purpose of using such slides is to regulate the quantity of wheat that may be allowed to ow through the system without choking or overloadingthe equipment and conveying elements. Second, to regulate the quantity of wheat fromvarious bins in varying proportions to arrive at desired blended wheat quality. Generallythe slides work satisfactorily in the North American situation as milling plants here in most situations blend similar wheat types not only in terms of hardness, but also in terms of kernel shape and size. When blending wheats of widely varying moisture, kernel size and test weight (den- sity) for equal opening of the slides would not necessarily guarantee equal quantities ofgrain being discharged. Varying levels of moisture content within given type of wheatwould have an inuence on its volume and density and thus would affect its ow ratethrough given opening. Therefore, in such situations, the use of slides could lead to inaccurate blending proportions. 3.1.1.1.2 volumetric measurers. Such measurers are quite commonly used by our mills around the world. Even though they regulate the quantity according to volume,they are certainly better than slides in terms of adjustment control. Figure 4 shows volumetric measurer. The wheat ows in from the top into the Fig. 4 Volumetric measurer. (Courtesy of Bu hler, Inc.) Grain-Milling Operations 2 Fig. 5 Flow balancers. (Courtesy of Bu hler, Inc.) back end of the machine. There are rotating pockets, inside the housing that carry the wheat from the back of the machine and drop it down as the pockets are facing down intheir rotation. The width of the pockets can be adjusted on the run by turning t