| 发明名称 | Dynamic dampening of wire rope | ||
| 摘要 | A machine includes a base, a main housing that is freely rotatable and supported on the base. The main housing includes a generally horizontal surface. The machine also includes a drum mounted on said main housing, a boom extending from said main housing, a bucket operatively connected to and supported by the boom, a wire rope extending between the drum and the bucket for movement of the bucket, a fairlead disposed on the main housing along a path of the wire rope. The wire rope passes through the fairlead between the drum and the bucket. A dynamic dampening mechanism is disposed on the fairlead, the dynamic dampening mechanism including a dampening fluid having a variable viscosity in response to an electrical current applied thereto. | ||
| 申请公布号 | US8887414(B2) | 申请公布日期 | 2014.11.18 |
| 申请号 | US201213531765 | 申请日期 | 2012.06.25 |
| 申请人 | Harnischfeger Technologies, Inc. | 发明人 | Baker Samuel John Andrew |
| 分类号 | E02F3/48 | 主分类号 | E02F3/48 |
| 代理机构 | Michael Best & Friedrich LLP | 代理人 | Michael Best & Friedrich LLP |
| 主权项 | 1. A machine comprising: a base; a main housing that is rotatable and supported on the base, the main housing including a generally horizontal surface; a drum mounted on said main housing; a boom extending from said main housing; a bucket operatively connected to and supported by the boom; a wire rope extending between the drum and the bucket for movement of the bucket; a fairlead disposed on the main housing along a path of the wire rope, the wire rope passing through the fairlead between the drum and the bucket; and a dynamic dampening mechanism disposed on the fairlead, the dynamic dampening mechanism including a dampening fluid having a variable viscosity in response to an electrical current applied thereto. | ||
| 地址 | Wilmington DE US | ||