US3755889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and means of assembling a dynamoelectric machine
Assignee: GELC
•
Filing: 1971-09-15
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Granted: 1973-09-04
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Expires: 1991-09-15
Abstract
Abstract Procedure for establishing alignment of a rotor within a stator bore including at least approximately positioning shim means within a stator core bore and thereafter placing a rotor within the bore to establish a final position of the shim means and a preferred position of the rotor relative to the bore. Shim means includes a plurality of shim elements interconnected together to form shim cluster or shim pack that includes a centering element or disc. Plurality of shim elements are substantially simultaneously moved into stator bore and rotor is thereafter placed within the bore with at least part of the shim elements disposed in an air gap between rotor and stator. After the air gap between the rotor and stator has been permanently established, the individual shim elements are substantially simultaneously removed from the air gap. With ''''unit bearing'''' motors, it is advantageous to move shims in a first axial direction; move a rotor in the same axial direction; assemble a bearing system; once again move the shim elements in the same first axial direction.
Inventors
- 👤 V Busian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:11
CPC Classifications
H; H02; H02K; H02K15/00; H02K15/16; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49009; Y10T29/53; Y10T29/5313; Y10T29/53143; Y10T29/53909; Y10T29/53913
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
209 words
A method of manufacturing a dynamoelectric machine comprising a first structure having bore defining surfaces, and a second structure having an outer surface spaced from the at least one surface; at least one bearing system interconnecting the first and second structures for rotative movement relative to one another about a longitudinally extending axis; the method comprising the steps of: substantially simultaneously positioning a plurality of spaced apart and longitudinally extending shim elements adjacent to at least one of the surfaces; thereafter moving the second structure in an axial direction relative to the first structure and positioning the outer surface of the second structure adjacent to the bore defining surFace, and resiliently deforming the longitudinally extending shim elements as the outer surface and bore defining surface are positioned adjacent to one another with the shim elements positioned between and resiliently centering the outer surface of the second structure relative to the bore defining surface of the first structure; subsequently permanently assembling together the first and second structures while maintaining the centered relationship of the second structure relative to the first structure and while the shim elements are positioned between the outer surface and bore defining surface; and thereafter removing the plurality of shim elements from the first and second structures.
Claim 2
Independent Claim
209 words
A method of manufacturing a dynamoelectric machine comprising a first structure having bore defining surfaces, and a second structure having an outer surface spaced from the at least one surface; at least one bearing system interconnecting the first and second structures for rotative movement relative to one another about a longitudinally extending axis; the method comprising the steps of: substantially simultaneously positioning a plurality of spaced apart and longitudinally extending shim elements adjacent to at least one of the surfaces; thereafter moving the second structure in an axial direction relative to the first structure and positioning the outer surface of the second structure adjacent to the bore defining surFace, and resiliently deforming the longitudinally extending shim elements as the outer surface and bore defining surface are positioned adjacent to one another with the shim elements positioned between and resiliently centering the outer surface of the second structure relative to the bore defining surface of the first structure; subsequently permanently assembling together the first and second structures while maintaining the centered relationship of the second structure relative to the first structure and while the shim elements are positioned between the outer surface and bore defining surface; and thereafter removing the plurality of shim elements from the first and second structures.
Claim 3
Dependent Claim
60 words
The method of claim 1 wherein the step of positioning a plurality of shim elements comprises substantially simultaneously moving all of the shim elements in a first given direction relative to the first structure and the step of removing the plurality of shim elements comprises substantially simultaneously moving all of the shim elements relative to the first and second structures.
Claim 4
Dependent Claim
25 words
The method of claim 2 wherein the step of removing the plurality of shim elements includes moving the shim elements in the first given direction.
Claim 5
Dependent Claim
34 words
The method of claim 3 wherein the step of moving the second structure in an axial direction is accomplished by effecting relative movement in the first given direction between the first and second structures.
Claim 6
Independent Claim
121 words
A method of manufacturing a dynamoelectric machine comprising a stator having a longitudinally extending bore and rotor assembly supported in the bore; the method comprising the steps of substantially simultaneously positioning a plurality of spaced apart and longitudinally extending reuseable shim elements comprising at least part of a shim means in the bore of the stator; thereafter moving the rotor assembly and bore into a substantially concentric air gap defining relationship with the previously positioned shim elements disposed in the air gap between the rotor assembly and stator; permanently securing the assembly of the rotor assembly and stator while the shim elements remain in the air gap; and subsequently substantially simultaneously removing the plurality of shim elements from the air gap.
Claim 7
Independent Claim
121 words
A method of manufacturing a dynamoelectric machine comprising a stator having a longitudinally extending bore and rotor assembly supported in the bore; the method comprising the steps of substantially simultaneously positioning a plurality of spaced apart and longitudinally extending reuseable shim elements comprising at least part of a shim means in the bore of the stator; thereafter moving the rotor assembly and bore into a substantially concentric air gap defining relationship with the previously positioned shim elements disposed in the air gap between the rotor assembly and stator; permanently securing the assembly of the rotor assembly and stator while the shim elements remain in the air gap; and subsequently substantially simultaneously removing the plurality of shim elements from the air gap.
Claim 8
Dependent Claim
66 words
The method of claim 5 wherein the step of moving the rotor assembly and bore into a substantially concentric air gap defining relationship includes moving the rotor assembly into engagement with a portion of the shim means disposed generally along the longitudinal axis of the bore, with subsequent movement of the rotor assembly relative to stator causing movement of the shim means relative to the stator.
Claim 9
Dependent Claim
70 words
The method of claim 5 wherein the rotor assembly includes a centrally disposed shaft and the shim means comprises a shim cluster held together by a centering member and wherein the method further comprises the step of moving the shaft of the rotor assembly into engagement with the centering member and thereafter moving the shim cluster in a first axial direction by moving the shaft in the same axial direction.
Claim 10
Dependent Claim
29 words
The method of claim 7 wherein the step of removing the plurality of shim elements from the air gap includes moving the centering member axially away from the shaft.
Claim 11
Independent Claim
152 words
A method of assembling a dynamoelectric machine comprising a stator core having a longitudinally extending bore, and a rotor supported within the bore, the method comprising the steps of: positioning a plurality of shim elements, fastened together to form a cluster, in the bore of the stator core; thereafter relatively moving the core and rotor into proximity with each other and centering the rotor in the bore with at least a portion of the shim elements disposed in a gap between a surface of the rotor and the bore of the stator; securing at least one bearing system to the dynamoelectric machine while the at least a portion of the shim elements are disposed in the gap; and substantially simultaneously removing the shim elements from the air gap between the rotoR and stator after the at least one bearing system is secured, by moving the shim cluster relative to the stator core.
Claim 12
Independent Claim
152 words
A method of assembling a dynamoelectric machine comprising a stator core having a longitudinally extending bore, and a rotor supported within the bore, the method comprising the steps of: positioning a plurality of shim elements, fastened together to form a cluster, in the bore of the stator core; thereafter relatively moving the core and rotor into proximity with each other and centering the rotor in the bore with at least a portion of the shim elements disposed in a gap between a surface of the rotor and the bore of the stator; securing at least one bearing system to the dynamoelectric machine while the at least a portion of the shim elements are disposed in the gap; and substantially simultaneously removing the shim elements from the air gap between the rotoR and stator after the at least one bearing system is secured, by moving the shim cluster relative to the stator core.
Claim 13
Dependent Claim
62 words
The method of claim 9 wherein the rotor includes a longitudinally extending shaft, the shim cluster includes a centering member, and further including the step of engaging the centering member with the shaft and moving the shim cluster in a longitudinal direction relative to the stator core by effecting relative movement between the stator core and shaft in the same longitudinal direction.
Claim 14
Dependent Claim
38 words
The method of claim 9 wherein the step of securing at least one bearing system includes the step of adhesively securing at least a portion of the bearing system to at least a portion of the dynamoelectric machine.
Claim 15
Dependent Claim
109 words
A shim cluster for use in assembling relatively movable parts of a dynamoelectric machine having a predetermined air gap therebetween, said cluster comprising a plurality of shim elements each having a pair of free extremities and each having a portion between the free extremities thereof held in proximity to at least one portion of another one of the shim elements between the free extremities of the another one, whereby all of the shim elements of the cluster may be substantially simultaneously moved into proximity with at least one part of a dynamoelectric machine and thereafter substantially simultaneously moved away from the at least one part of the dynamoelectric machine.
Claim 16
Dependent Claim
109 words
A shim cluster for use in assembling relatively movable parts of a dynamoelectric machine having a predetermined air gap therebetween, said cluster comprising a plurality of shim elements each having a pair of free extremities and each having a portion between the free extremities thereof held in proximity to at least one portion of another one of the shim elements between the free extremities of the another one, whereby all of the shim elements of the cluster may be substantially simultaneously moved into proximity with at least one part of a dynamoelectric machine and thereafter substantially simultaneously moved away from the at least one part of the dynamoelectric machine.
Claim 17
Dependent Claim
31 words
The shim cluster of claim 12 further comprising a centering member secured to the shim elements, said centering member being positioned at least approximately at a juncture of the shim elements.
Claim 18
Dependent Claim
32 words
The shim cluster of claim 12 wherein the shim elements are formed of resilient material and have a thickness selected to be less than the predetermined air gap of the dynamoelectric machine.
Claim 19
Dependent Claim
84 words
A shim pack for use in establishing an air gap between first and second relatively movable parts in an assembled structure, said shim pack comprising a plurality of spaced apart longitudinally extending shim elements, each of the elements having two free extremities and having at least one portion between the two extremities thereof secured to at least one other of the plurality of elements; and a centrally disposed member secured to said at least one portion of at least one of the shim elements.
Claim 20
Dependent Claim
84 words
A shim pack for use in establishing an air gap between first and second relatively movable parts in an assembled structure, said shim pack comprising a plurality of spaced apart longitudinally extending shim elements, each of the elements having two free extremities and having at least one portion between the two extremities thereof secured to at least one other of the plurality of elements; and a centrally disposed member secured to said at least one portion of at least one of the shim elements.
Claim 21
Dependent Claim
67 words
The shim pack of claim 15 wherein at least two shim elements are formed from a strip of resilient material having two extremities; said strip of material having an opening formed in a central portion thereof and being permanently deformed in a region between the opening and each of the free extremities thereof; and wherein the centrally disposed member has a portion thereof secured in said opening.
Claim 22
Dependent Claim
34 words
The shim pack of claim 15 wherein the shim elements are formed from strips of spring steel and the centrally disposed member is an element having a portion thereof securing the shim elements together.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |