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公开(公告)号：US5634770A
公开(公告)日：1997-06-03
申请号：US460979
申请日：1995-06-05
CPC分类号： F04D29/2216 , F04D29/22 , F04D7/065
摘要： An elongated shaft suited to a molten metal environment which forms a connection between a rotor and an impeller. The shaft being formed with at least one end, in cross-section, having a plurality of rounded side portions with a relatively large radius and rounded corners having a relatively small radius connecting the side portions.
摘要翻译： 适合于形成转子和叶轮之间的连接的熔融金属环境的细长轴。 所述轴形成为具有至少一个端部，其横截面具有多个具有相对大的半径的圆形侧部，并且具有连接所述侧部的相对较小半径的圆角。
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2.发明授权
公开(公告)号：US5558505A
公开(公告)日：1996-09-24
申请号：US287914
申请日：1994-08-09
CPC分类号： F04D7/065 , F04D29/628
摘要： A post for a molten metal pump having an end joined to a hole in a pump base. The post end includes a longitudinal bore opening at the end of the post and a port opening to the side of the post intersecting the bore. A plug is inserted into the bore above the level of the port yet leaving a portion of the upper bore open. Cement can be injected into the bore and out the ports. Thereafter, a second plug can be inserted into the bore to drive cement out. To remove the post, it is cut across its longitudinal axis to expose the open upper portion of the bore. The opening is a pilot hole to drill a longitudinal hole in the post. A device having two members connected by a rod are attached to the upper and lower surfaces of the remaining post, respectively and tightened to break the cement joint.
摘要翻译： 一种用于熔融金属泵的柱，其具有连接到泵基座中的孔的端部。 后端包括在柱的端部处的纵向孔开口和通向与孔相交的柱的侧面的端口。 将插头插入孔口上方的孔中，但使上部孔的一部分打开。 水泥可以注入孔中并出口。 此后，可以将第二插头插入孔中以驱动水泥出来。 为了去除柱，它被切割穿过其纵向轴线以暴露孔的敞开的上部。 该开口是在柱中钻一个纵向孔的导孔。 具有通过杆连接的两个构件的装置分别附接到剩余柱的上表面和下表面并且被紧固以破坏水泥接头。
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公开(公告)号：US5092821A
公开(公告)日：1992-03-03
申请号：US467028
申请日：1990-01-18
IPC分类号： F04D7/06 , F04D29/04 , F04D29/044 , F04D29/20 , F16D3/20
CPC分类号： F04D29/044 , F04D29/20 , F04D7/065 , F16D3/20 , Y10S464/901 , Y10T403/32598 , Y10T403/51
摘要： A drive system for impeller shafts includes a coupling that has a universal joint that is lubricated under all operating conditions. A housing is connected to the universal joint, which housing includes a hollow end portion adapted to receive the non-threaded end of an impeller shaft. A threaded stud projects from the end of the shaft and into the housing where the stud is secured by means of a nut. The nut is readily accessible to the user so that the axial position of the shaft can be adjusted without difficulty. The nut is releasably held within the housing so that the shaft and stud, with nut attached, can be quickly disconnected from the coupling. The invention also includes a modified "square drive" configuration for the ends of the shaft that is extremely strong and enables the shaft to be connected to the impeller and the coupling very easily.
摘要翻译： 用于叶轮轴的驱动系统包括具有在所有操作条件下被润滑的万向接头的联接器。 壳体连接到万向接头，该壳体包括适于容纳叶轮轴的非螺纹端的中空端部。 螺柱从轴的端部突出到壳体中，螺柱通过螺母固定。 螺母容易接近使用者，使得轴的轴向位置可以毫无困难地被调整。 螺母被可释放地保持在壳体内，使得具有螺母的轴和螺柱可以快速地从联接器断开。 本发明还包括对于轴的端部的改进的“方形驱动”结构，该结构非常坚固，并且能够使轴能够非常容易地连接到叶轮和联接器。
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公开(公告)号：US5586863A
公开(公告)日：1996-12-24
申请号：US468378
申请日：1995-06-06
CPC分类号： F04D29/2216 , F04D29/22 , F04D7/065
摘要： A molten metal pump having an elongated shaft with an impeller disposed adjacent the end of the shaft and a means for rotating the shaft. The impeller is formed with an imperforate substantially circular base surrounded by a bearing and has a surface facing toward the shaft. At least two imperforate vanes are connected to and extend substantially perpendicular from the surface and radially from the shaft or a hub securing the shaft toward a peripheral portion of the base. The vanes are spaced apart at terminal inlet ends along their entire radial dimension to create an inlet area comprised of the axial opening between adjacent vanes at the terminal ends and an outlet area comprised of a radial opening between adjacent vanes along the axial direction of the vanes. Each vane has a leading edge with a distal portion adjacent the periphery of the base portion which forms an angle of less than about 100.degree. relative to a tangent to said circular base drawn at the center of the vane.
摘要翻译： 一种具有细长轴的熔融金属泵，其具有邻近轴的端部设置的叶轮和用于旋转轴的装置。 叶轮形成有由轴承围绕的无孔大致圆形的基部，并且具有面向轴的表面。 至少两个无孔叶片从表面和径向基本上垂直于轴或者将轴固定到基部的周边部分的轮毂。 叶片沿着其整个径向尺寸在末端入口端处间隔开以形成入口区域，该入口区域包括在末端处的相邻叶片之间的轴向开口，以及由沿着叶片的轴向方向的相邻叶片之间的径向开口 。 每个叶片具有前缘，其远端部分邻近基座部分的周边，相对于在叶片中心处绘制的所述圆形基部的切线形成小于约100度的角度。
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公开(公告)号：US5088893A
公开(公告)日：1992-02-18
申请号：US649221
申请日：1991-01-25
IPC分类号： B22D39/00 , F04D7/06 , F04D13/02 , F04D29/04 , F04D29/047
CPC分类号： F04D29/047 , B22D39/00 , F04D13/021 , F04D7/065
摘要： A molten metal pump includes an impeller disposed at the end of an elongate drive shaft. The drive shaft is disposed within an elongate, hollow post. The impeller and the end of the post are adapted to be immersed in molten metal. An inert gas is conveyed through the gap between the outer surface of the drive shaft and the inner surface of the post, which gas is discharged into the molten metal in the vicinity of the impeller. Because the drive shaft is insulated from the molten metal, it can be made of a durable material such as steel; because the post is stationary relative to the molten metal, the metal is stirred only by the impeller, and not by the drive shaft. The invention includes other features such as a quick disconnect capability and a radial adjustment capability.
摘要翻译： 熔融金属泵包括设置在细长驱动轴的端部处的叶轮。 驱动轴设置在细长的中空柱内。 叶轮和柱的端部适于浸入熔融金属中。 惰性气体通过驱动轴的外表面和柱的内表面之间的间隙传送，该气体被排放到叶轮附近的熔融金属中。 因为驱动轴与熔融金属绝缘，所以它可以由诸如钢的耐用材料制成; 因为柱相对于熔融金属是固定的，所以金属仅由叶轮而不是驱动轴搅动。 本发明包括诸如快速断开能力和径向调节能力的其它特征。
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公开(公告)号：US5470201A
公开(公告)日：1995-11-28
申请号：US312327
申请日：1994-09-26
CPC分类号： F04D29/2216 , F04D29/22 , F04D7/065
摘要： A molten metal pump including a vaned impeller having a larger outlet area than inlet area which demonstrates prolonged high effectiveness and reduces the likelihood of catastrophic failure.
摘要翻译： 包括具有比入口面积大的出口面积的叶轮的熔融金属泵，其表现出延长的高效率并降低灾难性故障的可能性。
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公开(公告)号：US5143357A
公开(公告)日：1992-09-01
申请号：US614914
申请日：1990-11-19
CPC分类号： C22B21/0084 , C21C7/00 , C21C7/072
摘要： Metal particles are melted by mixing them with molten metal contained in a bath. A shaft-supported, rotatable impeller is immersed into the molten metal and rotated so as to establish a vortex-like flow of molten metal. Metal particles are deposited onto the surface of the molten metal in the vicinity of the rotating impeller. The particles are submerged substantially immediately after being deposited onto the surface of the molten metal. The impeller includes a thin rectangular prism having sharp-edged corners and vanes that extend upwardly from the prism. The impeller also can be used to disperse gas into the molten metal by pumping the gas through a bore extending the length of the shaft and out of the impeller along the lower surface of the impeller. The gas is sheared into finely divided bubbles as it rises along the sides of the impeller.
摘要翻译： 通过将金属颗粒与包含在浴中的熔融金属混合来熔化金属颗粒。 轴支撑的可旋转的叶轮浸入熔融金属中并旋转，以形成涡流状的熔融金属。 金属颗粒沉积在旋转叶轮附近的熔融金属表面上。 颗粒在沉积在熔融金属表面上之后基本上立即被浸没。 叶轮包括具有从棱镜向上延伸的锋利边角和叶片的薄矩形棱镜。 叶轮也可用于通过沿着叶轮的下表面的轴延伸并从叶轮的外部延伸的气体泵送气体来将气体分散到熔融金属中。 当气体沿着叶轮的侧面上升时，气体被剪切成细小的气泡。
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公开(公告)号：US4973433A
公开(公告)日：1990-11-27
申请号：US387168
申请日：1989-07-28
IPC分类号： B01F3/04
CPC分类号： B01F3/04262 , B01F2003/0439 , B01F2215/0044
摘要： Apparatus for injecting gas into molten metal includes a porous ceramic body having a first surface through which gas can be introduced into the body, and a second surface through which gas can flow from the body. A refractory member is attached to the body and surrounds at least the first surface, while leaving the second surface exposed. The refractory member is impervious to gas, while having a coefficient of thermal expansion approximating that of the body. Preferably, a refractory sealant securely attaches the refractory member to the body. By use of the present invention, the refractory member and the body remain tightly connected to each other at all times. Accordingly, gas leaks are prevented and all gas flowing into the body is discharged through the second surface, as desired.
摘要翻译： 将气体注入熔融金属的装置包括具有第一表面的多孔陶瓷体，气体可以通过该第一表面被引入到主体中，以及第二表面，气体可以通过该第二表面从主体流出。 耐火构件附接到主体并且至少围绕第一表面，同时使第二表面暴露。 耐火构件不透气，同时热膨胀系数接近于身体的热膨胀系数。 优选地，耐火密封剂将耐火构件牢固地附接到主体。 通过使用本发明，耐火构件和主体始终保持彼此紧密连接。 因此，防止气体泄漏，并且根据需要，流入体内的所有气体通过第二表面排出。
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公开(公告)号：US5165858A
公开(公告)日：1992-11-24
申请号：US529105
申请日：1990-07-10
IPC分类号： B22D39/00 , F04D7/06 , F04D13/02 , F04D29/04 , F04D29/047
CPC分类号： F04D29/047 , B22D39/00 , F04D13/021 , F04D7/065
摘要： An impeller for a molten metal pump having a cup-shaped body comprised of a sidewall and a closed end portion that define a cavity. A plurality of shear vanes extend radially from the outer surface of the impeller, particularly from the end portion of the impeller. The impeller also has a plurality of openings extending laterally through its sidewall, wherein the openings have center lines disposed parallel to lines extending radially from the center of the cavity. The openings may be equidistantly spaced about the periphery of the sidewall. The impeller may also be comprised of a bearing member forming a portion of the sidewall.
摘要翻译： 一种用于熔融金属泵的叶轮，其具有由限定空腔的侧壁和封闭端部组成的杯形主体。 多个剪切叶片从叶轮的外表面径向延伸，特别是从叶轮的端部延伸。 叶轮还具有横向延伸穿过其侧壁的多个开口，其中开口具有平行于从腔的中心径向延伸的线设置的中心线。 开口可以围绕侧壁的周边等距离地间隔开。 叶轮也可以由形成侧壁的一部分的轴承构件构成。
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公开(公告)号：US5294245A
公开(公告)日：1994-03-15
申请号：US857448
申请日：1992-03-25
CPC分类号： C22B21/0084 , C21C7/00 , C21C7/072
摘要： Metal particles are melted by mixing them with molten metal contained in a bath. A shaft-supported, rotatable impeller is immersed into the molten metal and rotated so as to establish a vortex-like flow of molten metal. Metal particles are deposited onto the surface of the molten metal in the vicinity of the rotating impeller. The particles are submerged substantially immediately after being deposited onto the surface of the molten metal. The impeller includes a thin rectangular prism having sharp-edged corners and vanes that extend upwardly from the prism. The impeller also can be used to disperse gas into the molten metal by pumping the gas through a bore extending the length of the shaft and out of the impeller along the lower surface of the impeller. The gas is sheared into finely divided bubbles as it rises along the sides of the impeller.
摘要翻译： 通过将金属颗粒与包含在浴中的熔融金属混合来熔化金属颗粒。 轴支撑的可旋转的叶轮浸入熔融金属中并旋转，以形成涡流状的熔融金属。 金属颗粒沉积在旋转叶轮附近的熔融金属表面上。 颗粒在沉积在熔融金属表面上之后基本上立即被浸没。 叶轮包括具有从棱镜向上延伸的锋利边角和叶片的薄矩形棱镜。 叶轮也可用于通过沿着叶轮的下表面的轴延伸并从叶轮的外部延伸的气体泵送气体来将气体分散到熔融金属中。 当气体沿着叶轮的侧面上升时，气体被剪切成细小的气泡。
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