公开(公告)号：US4044977A

公开(公告)日：1977-08-30

申请号：US677576

申请日：1976-04-16

申请人： Dennis D. Feucht

发明人： Dennis D. Feucht

IPC分类号： F16F3/08 ,  F16C27/06 ,  F16F3/093 ,  F16C35/12

CPC分类号： F16C27/063 ,  F16F3/093

摘要： An isolation mount is provided having triple spring rate capability. The mount provides a first spring rate to absorb and isolate engine shock and vibration to a first deflection limit and then a higher spring rate to a second deflection limit. If desired, a still higher spring rate above the second deflection limit is provided. The mount includes annular inner and outer bushings separated by an annular ring and a plurality of resilient supporting bushings. The ring and bushings are sized with respect to each other so that initial radial loading is taken by the plurality of resilient bushings until a first gap between the ring and the outer bushings is closed. This effectively removes the contribution of a pair of the resilient bushings to the spring rate. Thereafter, a further increase of the load will close a second gap between the ring and the inner bushing and effectively remove the remaining resilient bushing's contribution to the spring rate. The first spring rate is thus changed to a higher second spring rate. Thereafter, further deflection will result in a third spring rate higher than the second spring rate.

摘要翻译： 提供具有三重弹簧力能力的隔离安装座。 底座提供第一弹簧速率以吸收和隔离发动机的冲击和振动到第一偏转极限，然后将较高的弹簧速率隔离到第二偏转极限。 如果需要，提供了高于第二偏转极限的更高的弹簧刚度。 安装件包括由环形环和多个弹性支撑衬套隔开的环形内部和外部衬套。 环和衬套相对于彼此大小，使得初始径向负载由多个弹性衬套取得，直到环和外衬套之间的第一间隙闭合。 这有效地消除了一对弹性衬套对弹簧刚度的贡献。 此后，负载的进一步增加将闭合环和内衬套之间的第二间隙，并有效地消除剩余的弹性衬套对弹簧刚度的贡献。 因此，第一弹簧速率变为更高的第二弹簧速率。 此后，进一步的偏转将导致比第二弹簧刚度高的第三弹簧刚度。