Dynamoelectric machine vibration isolation mounting arrangement

Claim 2

A vibration isolation motor mounting arrangement for an electric motor having a longitudinally extending shaft and a stator shell adapted to be supported by a curved mounting surface, the arrangement comprising: at least one vibration isolation assembly including a supporting member secured to the stator shell and having at least one portion thereof extending radially outwardly; a vibration isolation member carried by the at least one portion of the supporting member and having a pair of longitudinally spaced Apart compressible sections; a mounting member having a curved region for mounting to the curved surface and being engageable with the isolation member, said mounting member having a first clamping arm; and a second clamping arm; the first and second clamping arms interlocking with one another and each having a seat for engaging and clamping the compressible sections of the isolation member, so that the isolation member restrains relative longitudinal and radial movement between at least one of the clamping arms and the supporting member thereby to provide resistance to impact loads applied to the arrangement and resistance to longitudinal and radial movement of the motor during operation, the isolation member permitting relative movement between at least one of the clamping arms and supporting member during motor operation as motor torque pulsations occur thereby to isolate torque pulsation vibrations from the mounting surface.

Claim 3

A vibration isolation motor mounting arrangement for an electric motor having a longitudinally extending shaft and a shell adapted to be supported by a blower housing adjacent an inlet opening having a curved opening defining surface, the arrangement comprising: at least one vibration isolation assembly including a supporting member secured to the shell, a vibration isolation member accommodated by the supporting member, and a mounting member engageable with the isolation member, said mounting member including a stiffener arm having a curved region for mounting the stiffener arm to the curved surface of the blower housing so that the arm can nest against the curved surface with the stiffener arm providing structural rigidity to the mounting arrangement thereby to provide resistance to deformation caused by impact loads applied thereto; said supporting member including at least one portion extending radially outwardly away from the motor shaft; the vibration isolation member being a compressible member carried by the at least one portion of the supporting member, and including a pair of longitudinally spaced apart compressible sections; said mounting member comprising a first clamping arm; and the arrangement further including a second clamping arm arranged to interlock with the first clamping arm, each of the clamping arms having a seat for engaging and clamping the compressible sections of the isolation member so that the isolation member restrains relative longitudinal and radial movement between the mounting member and the supporting member thereby to provide resistance to impact loads applied to the arrangement and resistance to longitudinal and radial movement of the motor during operation; the isolation member permitting relative movement between at least the mounting member and supporting member during motor operation as torque pulsations occur thereby to provide isolation of motor torque pulsation vibrations from the mounting surface.

Claim 4

A vibration isolation motor mounting arrangement for an electric motor having a longitudinally extending shaft and a shell adapted to be supported by a blower housing adjacent an inlet opening having a curved opening defining surface, the arrangement comprising: at least one vibration isolation assembly including a supporting member secured to the shell, a vibration isolation member accommodated by the supporting member, and a mounting member engageable with the isolation member, said mounting member including a stiffener arm having a curved region for mounting the stiffener arm to the curved surface of the blower housing so that the arm can nest against the curved surface with the stiffener arm providing structural rigidity to the mounting arrangement thereby to provide resistance to deformation caused by impact loads applied thereto; said supporting member including at least one portion extending radially outwardly away from the motor shaft; the vibration isolation member being a compressible member carried by the at least one portion of the supporting member, and including a pair of longitudinally spaced apart compressible sections; said mounting member comprising a first clamping arm; and the arrangement further including a second clamping arm arranged to interlock with the first clamping arm, each of the clamping arms having a seat for engaging and clamping the compressible sections of the isolation member so that the isolation member restrains relative longitudinal and radial movement between the mounting member and the supporting member thereby to provide resistance to impact loads applied to the arrangement and resistance to longitudinal and radial movement of the motor during operation; the isolation member permitting relative movement between at least the mounting member and supporting member during motor operation as torque pulsations occur thereby to provide isolation of motor torque pulsation vibrations from the mounting surface.

Claim 5

The arrangement of claim 2 wherein the isolation member comprises a dumbbell shaped member accommodated in an aperture in the supporting member.

Claim 6

The arrangement of claim 2 wherein the first and second clamping arms each include at least one ear, the ears of the first and second clamping arms interfitting to lock the arms together.

Claim 7

The arrangement of claim 2 wherein the supporting member defines a slot between a free extremity thereof and the shell, and the mounting member includes an extension disposed in the slot.