Patent US3786561A successfully refreshed from Google Patents.
US3786561A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for use in manufacturing dynamoelectric machine
Assignee: General Electric Co
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Filing: 1971-12-23
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Granted: 1974-01-22
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Expires: 1991-12-23
Abstract
Abstract Rotatable assembly of dynamoelectric machine is provided with at least one spacer that is collapsed from an initial length, in its free form, to a preselected length in its final configuration, to provide means for controlling end play of the assembly and for establishing a desired alignment of the assembly with the stationary structure of the machine. Collapsing the spacer reduces an internal diameter of the spacer and rigidly secures the spacer to a shaft portion of the assembly. Method includes reducing the axial length of a thrust member to a preselected length relative to a reference portion of a rotatable assembly and may also include reducing the length of a second thrust member to establish a preselected distance between two thrust surfaces. Apparatus includes a pair of opposed rams having spacer collapsing tooling that includes anvil means for collapsing the spacers and abutment means for engaging other portions of a rotatable assembly. A lost motion mechanism interconnects one of the anvil means and one of the abutment means.
Inventors
- 👤 V Busian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:43
CPC Classifications
H; H02; H02K; H02K15/00; H02K15/02; H02K15/028; H02K1/00; H02K1/06; H02K1/22; H02K1/28; H02K15/16; H02K5/00; H02K5/04; H02K5/16; H02K5/167; H02K5/1672; H02K7/00; H02K7/08; H02K7/083; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49009; Y10T29/49012; Y10T29/49826; Y10T29/49908; Y10T29/49925; Y10T29/49934
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
127 words
A method for use in the manufacture of a dynamoelectric machine comprising a stationary magnetic structure, a bearing system, and a rotatable assembly comprising a shaft, a rotor structure secured to the shaft, and means for restricting the end play of the shaft, the method comprising: placing at least one spacer, in the form of an integral tubular sleeve, on the shaft adjacent to the rotor structure; and rigidly positioning a surface region of the at least one spacer a preselected distance relative to a reference portion of the rotor structure by axially compressing and thereby reducing the axial length of the spacer such that it buckles and forms at least one undulation that grips the shaft and secures the spacer as part of the rotatable assembly.
Claim 2
Independent Claim
127 words
A method for use in the manufacture of a dynamoelectric machine comprising a stationary magnetic structure, a bearing system, and a rotatable assembly comprising a shaft, a rotor structure secured to the shaft, and means for restricting the end play of the shaft, the method comprising: placing at least one spacer, in the form of an integral tubular sleeve, on the shaft adjacent to the rotor structure; and rigidly positioning a surface region of the at least one spacer a preselected distance relative to a reference portion of the rotor structure by axially compressing and thereby reducing the axial length of the spacer such that it buckles and forms at least one undulation that grips the shaft and secures the spacer as part of the rotatable assembly.
Claim 3
Dependent Claim
69 words
The method of claim 1 wherein the step of rigidly positioning a surface region of the at least one spacer includes relatively moving the surface region of the at least one spacer and the shaft to position the surface region of the at least one spacer a preselected distance from an end lamination forming part of the rotor structure while collapsing the at least one spacer against the shaft.
Claim 4
Independent Claim
156 words
A method of manufacturing an assembly for use in a dynamoelectric machine comprising a shaft, a magnetic core secured to the shaft, and means for restricting end play of the shaft relative to a bearing system, the method comprising placing an axially extending spacer around each end of the shaft with at least one of the spacers comprising an integral tubular sleeve, relatively moving the spacers and shaft, rigidly positioning a surface region of one spacer a preselected distance from a reference portion of the magnetic core, and rigidly positioning a surface region of the other spacer a preselected distance from the above mentioned surface region of one spacer; the step of rigidly positioning a surface region of said at least one of the spacers including axially compressing and ultimately collapsing said at least one of the spacers longitudinally along the shaft such that it buckles and forms at least one undulation that grips the shaft.
Claim 5
Independent Claim
156 words
A method of manufacturing an assembly for use in a dynamoelectric machine comprising a shaft, a magnetic core secured to the shaft, and means for restricting end play of the shaft relative to a bearing system, the method comprising placing an axially extending spacer around each end of the shaft with at least one of the spacers comprising an integral tubular sleeve, relatively moving the spacers and shaft, rigidly positioning a surface region of one spacer a preselected distance from a reference portion of the magnetic core, and rigidly positioning a surface region of the other spacer a preselected distance from the above mentioned surface region of one spacer; the step of rigidly positioning a surface region of said at least one of the spacers including axially compressing and ultimately collapsing said at least one of the spacers longitudinally along the shaft such that it buckles and forms at least one undulation that grips the shaft.
Claim 6
Dependent Claim
36 words
The method of claim 3 wherein the steps of rigidly positioning surface regions of the spacers includes compressing the spacers from a free form to a final configuration and comprises collapsing the spacers along the shaft.
Claim 7
Independent Claim
120 words
A method of securing a longitudinally extending thrust member comprising an integral tubular sleeve to an assembly including a magnetic structure and a shaft, the method comprising freely positioning the integral tubular sleeve on the shaft, relatively moving the integral tubular sleeve and magnetic structure toward one another, axially cOmpressing and stressing the integral tubular sleeve against the assembly while establishing a preselected spacing between a surface region of the thrust member and a reference portion of the assembly, and permanently deforming the thrust member against the assembly by causing the integral tubular sleeve to buckle and form at least one undulation gripping the shaft and thereby securing the thrust member to the shaft as a part of the assembly.
Claim 8
Independent Claim
120 words
A method of securing a longitudinally extending thrust member comprising an integral tubular sleeve to an assembly including a magnetic structure and a shaft, the method comprising freely positioning the integral tubular sleeve on the shaft, relatively moving the integral tubular sleeve and magnetic structure toward one another, axially cOmpressing and stressing the integral tubular sleeve against the assembly while establishing a preselected spacing between a surface region of the thrust member and a reference portion of the assembly, and permanently deforming the thrust member against the assembly by causing the integral tubular sleeve to buckle and form at least one undulation gripping the shaft and thereby securing the thrust member to the shaft as a part of the assembly.
Claim 9
Dependent Claim
54 words
The method of claim 5 wherein the step of permanently deforming the thrust member includes reducing the axial length of the thrust member from the length of the thrust member while in its free form to a preselected final length and further includes reducing the size of an internal opening defined by the spacer.
Claim 10
Independent Claim
143 words
A method of manufacturing a rotatable assembly for a dynamoelectric machine, the assembly comprising a shaft, a rotor secured thereto, and spacer means including at least one integral tubular sleeve having axially spaced apart ends, the method comprising positioning the at least one integral tubular sleeve on the shaft with one end of the sleeve in abutting relation against the rotor by sliding the sleeve axially along the shaft while the sleeve has an initial free form; axially compressing the sleeve by moving the other end of the sleeve axially along the shaft toward the one end of the sleeve while the one end continues to abut against the rotor; and crushing the sleeve so that it buckles and forms at least one undulation that grips the shaft thereby rigidly position the other end of the sleeve a preselected distance from the rotor.
Claim 11
Independent Claim
143 words
A method of manufacturing a rotatable assembly for a dynamoelectric machine, the assembly comprising a shaft, a rotor secured thereto, and spacer means including at least one integral tubular sleeve having axially spaced apart ends, the method comprising positioning the at least one integral tubular sleeve on the shaft with one end of the sleeve in abutting relation against the rotor by sliding the sleeve axially along the shaft while the sleeve has an initial free form; axially compressing the sleeve by moving the other end of the sleeve axially along the shaft toward the one end of the sleeve while the one end continues to abut against the rotor; and crushing the sleeve so that it buckles and forms at least one undulation that grips the shaft thereby rigidly position the other end of the sleeve a preselected distance from the rotor.
Claim 12
Independent Claim
128 words
A method of securing an integral tubular sleeve to a dynamoelectric machine rotor assembly comprising a plurality of parts, including a shaft; said method comprising moving a longitudinally extending integral tubular sleeve in a free form thereof axially along the shaft so that a first end of the sleeve comes to rest at a given location along the shaft; continuing to move a second end of the sleeve, spaced axially along the shaft from the first end thereof, toward the given location along the shaft and axially compressing the sleeve so that it buckles and forms at least one undulation gripping the shaft and securing assembly of the sleeve to the shaft with the second end of the sleeve positioned at a predetermined axial location on the shaft.
Claim 13
Independent Claim
128 words
A method of securing an integral tubular sleeve to a dynamoelectric machine rotor assembly comprising a plurality of parts, including a shaft; said method comprising moving a longitudinally extending integral tubular sleeve in a free form thereof axially along the shaft so that a first end of the sleeve comes to rest at a given location along the shaft; continuing to move a second end of the sleeve, spaced axially along the shaft from the first end thereof, toward the given location along the shaft and axially compressing the sleeve so that it buckles and forms at least one undulation gripping the shaft and securing assembly of the sleeve to the shaft with the second end of the sleeve positioned at a predetermined axial location on the shaft.
Claim 14
Independent Claim
122 words
A method for use in the manufacture of a dynamoelectric machine comprising a stationary structure, bearing means, and an assembly supported by the bearing means for rotation relative to the stationary structure, the assembly including a shaft and at least one integral tubular sleeve, the method comprising: placing an integral tubular sleeve on the shaft and moving the sleeve axially along the shaft until one end of the sleeve is arrested from further axial movement relative to the shaft; axially compressing the sleeve by moving a second end of the sleeve axially along the shaft and towards the first end of the sleeve at least until the sleeve buckles and forms at least one undulation that secures the sleeve to the shaft.
Claim 15
Independent Claim
122 words
A method for use in the manufacture of a dynamoelectric machine comprising a stationary structure, bearing means, and an assembly supported by the bearing means for rotation relative to the stationary structure, the assembly including a shaft and at least one integral tubular sleeve, the method comprising: placing an integral tubular sleeve on the shaft and moving the sleeve axially along the shaft until one end of the sleeve is arrested from further axial movement relative to the shaft; axially compressing the sleeve by moving a second end of the sleeve axially along the shaft and towards the first end of the sleeve at least until the sleeve buckles and forms at least one undulation that secures the sleeve to the shaft.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-21 | 1977-07-23 | 1978-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-21 | 1981-07-23 | 1982-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-21 | 1985-07-23 | 1986-01-22 | $7700.00 | Window Closed / Lapsed |