公开(公告)号：US5842377A

公开(公告)日：1998-12-01

申请号：US739738

申请日：1996-11-07

Applicant: William J. Hutchings ,  Stephen L. Markle ,  David J. Engel ,  Joel S. Berg ,  Marlin D. Schutte

Inventor： William J. Hutchings ,  Stephen L. Markle ,  David J. Engel ,  Joel S. Berg ,  Marlin D. Schutte

IPC: F16H1/20

CPC classification number: F16H1/203 ,  Y10T74/19674 ,  Y10T74/19684 ,  Y10T74/2186

Abstract: A mixer gearbox assembly for driving a mixer shaft capable of receiving either a complete electric drive motor on a first face of the gearbox housing for operatively coupling with a first end of a long cross-shaft in the housing, or alternatively a partial electric drive motor on a second face of the gearbox housing for operatively coupling with an opposite end of the cross-shaft. In an alternative configuration for use with only a partial motor, an assembly containing otherwise identical components is provided with a short cross-shaft replacing the long cross-shaft, which short shaft is supported by a single bearing and is colinearly matable only at the outer end thereof with the drive shaft of a partial electric motor. The rotor and short shaft act as a unitary structure when assembled. The alternative configuration can reduce the cost of manufacture of the gearbox assembly through elimination of a motor bearing, a shaft bearing, and a long cross-shaft, and also this configuration eliminates the usual motor pedestal and its coupling, and through use of all other parts identical with those of the alternative-motor assembly.

Abstract translation: 一种用于驱动混合器轴的混合器齿轮箱组件，该混合器轴能够在齿轮箱壳体的第一面上接收完整的电动驱动马达，用于与外壳中的长横轴的第一端可操作地联接，或者可选地，部分电驱动马达 在齿轮箱壳体的第二面上，用于与横轴的相对端可操作地连接。 在仅用于部分电动机的替代配置中，包含其他相同部件的组件设置有短的横轴，其代替长的横轴，该短轴由单个轴承支撑并且仅在外部可共轭地配合 其部分电动机的驱动轴。 转子和短轴在组装时用作整体结构。 替代的配置可以通过消除电动机轴承，轴承和长横轴来降低齿轮箱组件的制造成本，并且这种构造消除了通常的电动机基座及其联接，并且通过使用所有其他 部件与替代电机组件的部件相同。

公开(公告)号：US5720486A

公开(公告)日：1998-02-24

申请号：US739740

申请日：1996-11-07

Applicant: William J. Hutchings ,  Stephen L. Markle ,  David J. Engel ,  Joel S. Berg

Inventor： William J. Hutchings ,  Stephen L. Markle ,  David J. Engel ,  Joel S. Berg

IPC: F16C33/80 ,  F16J15/34

CPC classification number: F16C33/80

Abstract: A labyrinth shaft seal for preventing the migration of gear lubricant from a mixer drive assembly into a batch of process materials being mixed. In the preferred embodiment, a portion of the gearcase outboard of the upper quill bearing, preferably the actual bearing mount, is provided with an axially-directed circular face, the mount being formed of relatively soft material such as ductile cast iron. A disc-shaped seal element having a central aperture and supporting an axially-directed peripheral cylindrical flange is sealingly mounted on the quill above the quill bearing and extends radially from the quill and generally parallel to the circular face. The flange is formed of material substantially harder than the circular face. The axial positions of the outer bearing race mount on the housing and the disc-shaped seal element on the quill are selected so that, upon assembly of the bearings and seal, the lower edge of the flange interferes with the circular surface causing the disc-shaped seal element to be elastically deformed to define a dish-shaped spring having a depth of 0.010 inch. Upon rotation of the quill, the flange is urged by the pre-load of the spring to incise and then occupy an interference-fit groove in the circular surface, thereby forming an inexpensive, and effective labyrinth seal against leakage of gear lubricant through the quill bearing.

Abstract translation: 一种迷宫式轴封，用于防止齿轮润滑剂从混合器驱动组件迁移到一批待混合的工艺材料中。 在优选实施例中，上套筒轴承外侧齿轮箱的一部分，优选地是实际的轴承安装座，设置有一个轴向定向的圆形面，该安装座由诸如球墨铸铁的较软材料形成。 具有中心孔并支撑轴向定向的周向圆柱形凸缘的盘形密封元件密封地安装在轴承座上方的轴瓦上，并且从套筒径向延伸并且大致平行于圆形面。 凸缘由基本上比圆形表面硬的材料形成。 外壳轴承座安装在壳体上的轴向位置和套筒上的盘形密封元件被选择为使得在组装轴承和密封件时，凸缘的下边缘与圆形表面相干， 形状的密封元件弹性变形以限定具有0.010英寸深度的碟形弹簧。 在套筒旋转时，法兰被弹簧的预加载力推动，以切割，然后占据圆形表面中的干涉配合槽，从而形成廉价且有效的迷宫式密封，以防止齿轮润滑剂通过套筒的泄漏 轴承。