초록 ▼

A dynamoelectric machine load package has an acoustically isolated enclosure for reducing the amount of structure-borne and air-borne vibration and noise reaching the surrounding environment. Bearing pedestals for supporting a rotating shaft of a rotating field winding of a dynamoelectric machine an

A dynamoelectric machine load package has an acoustically isolated enclosure for reducing the amount of structure-borne and air-borne vibration and noise reaching the surrounding environment. Bearing pedestals for supporting a rotating shaft of a rotating field winding of a dynamoelectric machine and a reduction gear for driving the rotating shaft are firmly mounted on a load package base which is firmly attached to a foundation. The enclosure and a stationary armature of the dynamoelectric machine are independently resiliently mounted on the load package base. The enclosure is free to vibrate independently of the load package so that vibrations are not directly transmitted from the load package to the enclosure and are not directly transmitted from the enclosure to the load package base. Acoustic damping material is applied to interior walls of the enclosure.

대표청구항 ▼

A dynamoelectric machine load package including an acoustically isolated enclosure, said load package comprising: a. a load package base, said load package base further comprising: i. a base plate, and ii. I-beams for supporting said base plate, said I-beams positioned around the periphery of said b

A dynamoelectric machine load package including an acoustically isolated enclosure, said load package comprising: a. a load package base, said load package base further comprising: i. a base plate, and ii. I-beams for supporting said base plate, said I-beams positioned around the periphery of said base plate and having upper and lower I-beam rails, b. a dynamoelectric machine including a stator and a frame for said stator; c. a plurality of resilient isolation pads for resiliently supporting said stator frame on said upper I-beam rails; d. a reduction gear for driving said rotor, said reduction gear firmly mounted in vibration-transmitting relationship to said base plate; e. bearing pedestals for supporting a rotor shaft of said dynamoelectric machine, said pedestals firmly mounted in vibration-transmitting relationship to said base plate; f. an enclosure, said enclosure further comprising: i. an enclosure side rail along each side of said enclosure, ii. an upper main part having a top, two sides and an end, said upper main part firmly attached to said enclosure side rail, and iii. lower base skirt panels firmly attached to and extending downwardly from said enclosure side rails so as to form a lower extension of sides of said upper main part; g. a first plurality of isolation mounts each arranged between one of said enclosure side rails and a corresponding one of said upper I-beam rails to support said enclosure side rail on said load package base; h. a second plurality of isolation mounts each arranged between a lower edge of one of said base skirt panels and a corresponding one of said lower I-beam rails; i. resilient seals between each enclosure side rail and a corresponding one of said upper I-beam rails to permit relative movement of the enclosure and said load package base while preventing air flow and transmission of air-borne noise between an upper main generator cavity and a lower base skirt cavity; and, j. resilient seals between the lower edges of said base skirt panels and the corresponding lower I-beam rails to permit relative movement of said enclosure and said base while preventing air flow and transmission of air-borne noise between said lower base skirt cavity and the surrounding environment; whereby air-borne noise and vibration transmitted to the surrounding environment is reduced.