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公开(公告)号：US4571090A
公开(公告)日：1986-02-18
申请号：US769998
申请日：1985-08-26
申请人： Ronald J. Weetman , Jerry A. Carpenter , Chandler K. Coyle , Keith T. McDermott , Roger N. Voss
发明人： Ronald J. Weetman , Jerry A. Carpenter , Chandler K. Coyle , Keith T. McDermott , Roger N. Voss
CPC分类号： B01F7/00341 , B01F15/00012
摘要： Mixing systems for liquids having fibers suspended therein wherein the fibers tenaciously adhere to and accumulate on the leading edge of the impeller, thereby increasing the drag of the liquid on the impeller as it rotates and the consequent increase in the power required to rotate the impeller. Axial flow of the liquid in a tank is produced by the impeller within a draft tube. The leading edge of the blades of the impeller are inclined with respect to radial lines extending from the axis of rotation of the impeller beyond the angle of repose of the fibers on the leading edge. Also, the coefficient of friction of the portion of the impeller, extending from the leading edge toward the trailing edge thereof, to which the fibers adhere is reduced by providing the surface thereof with a low coefficient of friction material.
摘要翻译： 用于具有悬浮在其中的纤维的液体的混合系统，其中纤维牢固地粘附并积聚在叶轮的前缘上，从而在叶轮旋转时增加液体在叶轮上的阻力，从而增加旋转叶轮所需的功率。 通过在引流管内的叶轮产生罐中液体的轴向流动。 叶轮的叶片的前缘相对于从叶轮的旋转轴线延伸超过纤维在前缘上的休止角延伸的径向线倾斜。 此外，通过提供其具有低摩擦系数的材料，减小了纤维粘附到其上的从其前缘向后缘延伸的叶轮部分的摩擦系数。
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2.发明授权Apparatus for stabilizing a mixer which circulates liquid against excessive oscillation 失效用于稳定混合器的装置，其将液体循环以防止过度振荡
公开(公告)号：US6089748A
公开(公告)日：2000-07-18
申请号：US164827
申请日：1998-10-01
CPC分类号： B01F7/1655 , B01F7/22 , Y10S416/50 , Y10T464/50
摘要： Mixer apparatus having an impeller on a shaft, which circulates a body of liquid the surface of which can clear the impeller, especially when the liquid is in a tank, and the tank is drained, is protected against excessive by use of a flexural member, which may be in the form of radially opposed pairs of resilient plates, which extend from the shaft and are attached thereto by a collar. As the liquid surface drops below the impeller, the members present surfaces to the liquid in the tank on which forces are opposing the oscillation are developed by interaction of the surfaces with the liquid in the tank. Restoring forces on the shaft due to the flexing of the resilient plates also reduce the shaft oscillation. The stiffness of the plates is selected to optimize the restoring forces for the mixing apparatus which is stabilized.
摘要翻译： 具有在轴上具有叶轮的混合器装置，其使表面可以清除叶轮的液体体积循环，特别是当液体在罐中时，液体排出时，通过使用弯曲构件来防止过度的液体， 其可以是径向相对的一对弹性板的形式，其从轴延伸并通过轴环附接到其上。 当液体表面落在叶轮下方时，构件将表面呈现在槽中与液体相反的液体中，其中振荡是通过表面与罐中的液体相互作用而形成的。 由于弹性板的弯曲，轴上的恢复力也减小了轴的振动。 选择板的刚度以优化稳定的混合装置的恢复力。
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公开(公告)号：US4722608A
公开(公告)日：1988-02-02
申请号：US760370
申请日：1985-07-30
CPC分类号： B01F7/00016 , B01F7/00033 , B01F7/001 , B01F7/00358
摘要： Apparatus for mixing liquid and liquid suspension mediums in vessels with a mixing impeller shaft system of a composite of fibrous and plastic material of a structural configuration to enable the use of such material in commercial and industrial applications where the reaction loads of the medium on the system militate against the use of composite fibrous and plastic material. The system utilizes impellers having blades which distribute the reaction load through a hub on a mounting area of a shaft with keys and keyways in a manner to avoid stress risers unamicable to the composite material and which can cause failure thereof. Separate keys and keyways are provided to oppose the thrust due to the reaction loads and to oppose the torque due to such loads. Plural thrust keyways may be used to enable the impeller to be located at different positions on the shaft and at selected heights above the floor of the mixing vessel. Proplets on the tips of the blades extend entirely in the direction of the low pressure surface of the blades to control the flow field in the vessel and provide a more axial velocity profile of the inlet flow to the impeller which is nearly axial and substantially reduces the strength of the tip vortices.
摘要翻译： 用于将液体和液体悬浮介质混合在容器中的装置，其具有结构构造的纤维和塑料材料的复合材料的混合叶轮轴系统，以使得能够在商业和工业应用中使用这种材料，其中介质在系统上的反应负荷 妨碍使用复合纤维和塑料材料。 该系统利用具有叶片的叶轮，该叶片通过具有键和键槽的轴的安装区域上的轮毂分布反作用载荷，以避免不能对复合材料进行施加的应力提升并且可能导致其失效。 提供单独的键和键槽以抵抗由于反作用力引起的推力，并且由于这种载荷而产生的扭矩。 可以使用多个推力键槽来使叶轮位于轴上的不同位置，并且位于混合容器的地板上方的选定高度处。 叶片的尖端上的叶片完全沿着叶片的低压表面的方向延伸，以控制容器中的流场并且提供进入叶轮的入口流的更加轴向的速度分布，其几乎是轴向的并且基本上减小 尖端旋涡的强度。
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公开(公告)号：US4834932A
公开(公告)日：1989-05-30
申请号：US108663
申请日：1987-10-15
CPC分类号： B29C66/534 , B29C65/542 , B29C66/721 , F16C3/026 , B29C66/7212
摘要： A method for making an end connection for a shaft made of composite material, which accommodates for differences in stiffness, thermal expansion, and chemical resistance between the shaft and the member connected thereto and operates under oscillating torque, thrust, and bending loads, and also provides for manufacturing flexibility in enabling the shaft and connection to be produced as separate parts which are formed when final assembly is to occur. The connection has a male insert which is inserted into the end of the composite shaft. Axial and circumferential grooves are cut in the surfaces of the male insert and the shaft. These grooves are aligned to form circumferential and axial keyways which intersect each other. Material is injected into the keyway and polymerizes to form structural keys which transmit the thrust and torque, while locking the insert member and the shaft permanently together. The bending loads are transmitted through the tight fit extending axially between the composite shaft, insert member and keys. The radial thickness of the end of the shaft, the amount and orientation of the reinforcing fibers therein and the insert are matched so that their stiffness index approximately match. The composite shaft may be connected to a mixing impeller to provide a reliable support and drive therefor.
摘要翻译： 一种用于制造由复合材料制成的轴的端部连接的方法，其适应于轴和与其连接的构件之间的刚度，热膨胀和耐化学性的差异，并且在振荡的扭矩，推力和弯曲载荷下操作，以及 提供制造灵活性，使轴和连接件能够作为在最终组装时形成的分离部件而被制造。 连接件具有插入复合轴端部的阳插入件。 在公插入物和轴的表面上切割轴向和周向槽。 这些槽对准以形成彼此相交的周向和轴向键槽。 将材料注入键槽并聚合形成传递推力和扭矩的结构键，同时将插入构件和轴永久地锁定在一起。 弯曲载荷通过在复合轴，插入构件和键之间轴向延伸的紧密配合传递。 轴的端部的径向厚度，其中的增强纤维的量和取向和插入件相匹配，使得它们的刚度指数近似匹配。 复合轴可以连接到混合叶轮以提供可靠的支撑和驱动。
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公开(公告)号：US4722717A
公开(公告)日：1988-02-02
申请号：US846318
申请日：1986-03-31
CPC分类号： B29C66/534 , B29C65/542 , B29C66/721 , F16C3/026 , B29C66/7212 , B29C66/72143 , Y10T403/47 , Y10T403/472 , Y10T403/7021
摘要： An end connection for a shaft made of composite material, which accommodates for differences in stiffness, thermal expansion, chemical resistance between the shaft and the member connected thereto and operates under oscillating torque, thrust, and bending loads, and also provides for manufacturing flexibility in enabling the shaft and connection to be produced as separate parts which are formed when final assembly is to occur. The connection has a male insert which is inserted into the end of the composite shaft. Axial and circumferential grooves in the surfaces of the male insert and the shaft. These grooves are aligned to form circumferential and axial keyways which intersect each other. Material is injected into the keyway and polymerizes to form structural keys which transmit the thrust and torque, while locking the insert member and the shaft permanently together. The bending loads are transmitted through the tight fit extending axially between the shaft, insert member and keys. The radial thickness of the end of the shaft, the amount and orientation of the reinforcing fibers therein and the insert are matched so that their stiffness index approximately match. The composite shaft may be connected to a mixing impeller to provide a reliable support and drive therefor.
摘要翻译： 用于由复合材料制成的轴的端部连接，其适应于刚性，热膨胀，连接到其之间的构件和耐久性之间的差异，并且在振动扭矩，推力和弯曲载荷下运行，并且还提供制造灵活性 使轴和连接件能够作为在最后组装时形成的分离部件生产。 连接件具有插入复合轴端部的阳插入件。 阳插入件和轴的表面中的轴向和周向凹槽。 这些槽对准以形成彼此相交的周向和轴向键槽。 将材料注入键槽并聚合形成传递推力和扭矩的结构键，同时将插入构件和轴永久地锁定在一起。 弯曲载荷通过在轴，插入构件和键之间轴向延伸的紧密配合传递。 轴的端部的径向厚度，其中的增强纤维的量和取向和插入件相匹配，使得它们的刚度指数近似匹配。 复合轴可以连接到混合叶轮以提供可靠的支撑和驱动。
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