Method and apparatus for winding dynamoelectric machine field coils
阅读：372发布：2022-12-01
专利汇可以提供Method and apparatus for winding dynamoelectric machine field coils专利检索，专利查询，专利分析的服务。并且A method and apparatus for winding a plurality of interconnected dynamoelectric machine field coils providing intercoil connections of minimum length. At least two coil forms are provided each having a distal end and a proximal end secured to a support, the coil forms extending radially outwardly from the support in angularly spaced relation. Each coil form has at least two steps with the largest step adjacent the proximal end and the smallest step adjacent the distal end. A flyer-winder is provided supported for axial movement thereby to wind the coils on the coil forms. A first latching mechanism is provided for moving the flyer forwardly in incremental steps thereby to position the flyer for winding on the respective coil form steps, and a second latching mechanism is provided for moving the flyer rearwardly in incremental steps, likewise to position the flyer for winding on respective coil form steps. A traversing mechanism is provided for moving the flyer axially thereby to traverse the flyer across the coil form independently of the incremental steps provided by the latching mechanisms. With this construction, a part of a coil on one coil form is wound progressing in a forward direction from the proximal end toward the distal end with the starting end of the coil being adjacent the proximal end, and the remaining part of the coil is wound in a direction progressing rearwardly from the distal end toward the proximal end with the finishing end of the coil being adjacent the proximal end. Thus, when the support is rotated to move another coil form into winding relationship with the flyer, the starting end of the coil forms a continuation of the finishing end of the previously wound coil, both of these ends and the interconnection therebetween being adjacent the proximal ends of the respective coil forms and the support, thereby minimizing the length of the intercoil connections.，下面是Method and apparatus for winding dynamoelectric machine field coils专利的具体信息内容。
1. The method of winding dynamoelectric machine field coils comprising the steps of: (a) providing at least one coil form having a distal end and a proximal end; (b) winding a first part of a coil on said form progressing in a forward direction from said proximal end toward said distal end with the starting end of said coil being adjacent said proximal end; and (c) without severing the wire from which said coil is wound, winding the remaining part of said coil on said form in a direction progressing rearwardly from said distal end toward said proximal end with the finishing end of said coil being adjacent said proximal end; said coil form having at least two progressively smaller steps, the largest being adjacent said proximal end and the smallest being adjacent said distal end, said coil when completely wound having a section on each of said coil form steps, each of said sections having a predetermined total number of turns including said parts, said first-named and remaining parts being wound in the same direction.
2. The method of claim 1 wherein said winding step (b) comprises: (1) successively winding a first part of the predetermined number of turns of each section of said coil with the exception of the section on said smallest step, and (2) winding all of the section on said smallest step; said winding step (c) comprising successively winding the remaining parts of each of said sections of said coil wound in step (b) (1).
3. The method of claim 2 wherein the first part of each said section wound in step (b) (1) comprises approximately one-half said total number of turns thereof.
4. The method of claim 2 wherein the remaining parts of each section wound in step (c) are wound over the respective first part of the same section wound in step (b) (1).
5. The method of claim 2 wherein each of said parts wound in steps (b) (1) and (c), and said section wound in step (b) (2) are random wound.
6. The method of claim 1 wherein the turns of each of said sections are wound in a single layer, said remaining parts of each section wound in step (c) being adjacent the respective first part of the same section wound in step (b).
7. The method of claim 1 wherein the turns of each of said sections are wound in a single layer, said step (b) comprising successively winding a first part of each of said sections on the respective step in a forward direction progressing toward said distal end; said step (c) comprising successively winding the remaining parts of each oF said sections on the respective step in a rearward direction progressing toward said proximal end.
8. The method of claim 7 wherein each of said remaining parts comprises a relative small number of the total number of turns of the respective section.
9. The method of claim 8 wherein the starting end of each said first part is spaced from the rear end of the respective step and the finishing end is adjacent the forward end of the respective step, the said remaining part of the section on the smallest one of said steps having a crossover portion extending helically over the respective first part from the finishing end thereof to the respective space, and a second portion wound on said smallest step in the respective space, said remaining parts of the remaining sections respectively having crossover portions extending helically over the respective first part from the second portion of the preceding remaining part to the respective space and a second portion wound on the respective step in the respective space.
10. The method of claim 9 wherein there is a connecting portion extending forwardly between the finishing end and starting end of adjacent first parts, said connecting portions being disposed in axial alignment on one side of said coil, said crossover portions being disposed in axial alignment on the side of said coil opposite said one side.
11. The method of claim 1 wherein said step (a) comprises providing at least two substantially identical coil forms, and comprising the further steps of: (d) relatively moving the first coil form having the first coil wound thereon in steps (b) and (c) away from cooperative relationship with winding apparatus, and relatively moving a second coil form into cooperative relationship with said winding apparatus; and (e) without severing the wire connecting the first and second coils, repeating steps (b) and (c) thereby to wind a second coil on said coil form with the starting end of said second coil being a continuation of the finishing end of said first coil.
12. The method of claim 11 wherein said coil forms have their said proximal ends secured to a support and extend radially outwardly therefrom in angularly spaced relation, said step (d) comprising rotating said support, the portion of said wire connecting said finishing end of said first coil and said starting end of said second coil being adjacent said support.
13. Apparatus for winding dynamoelectric machine field coils comprising: at least one coil form having a distal end and a proximal end; means for supporting said proximal end; means for winding a coil on said form; means for relatively moving said winding means axially with respect to said form thereby to traverse said winding means across said form; and means for actuating said moving means to wind a first part of a coil on said form progressing forwardly in a direction from said proximal end toward said distal end with the starting end of said coil being adjacent said proximal end and to wind the remaining part of said coil on said form in a direction progressing rearwardly from said distal end toward said proximal end with the finishing end of said coil being adjacent said proximal end; said coil form having at least two steps, the largest being adjacent said proximal end and the smallest being adjacent said distal end, said coil when completely wound having a section on each of said steps, each of said sections having a predetermined total number of turns including both of the respective parts.
14. The apparatus of claim 13 wherein said actuating means includes means coupled to said winding means for counting the number of turns wound on said form, said counting means including means for providing a signal in response to winding a selected number of turns on each of said steps, and means coupling said counting means to said moving means for actuating the same in response to said counting means.
15. The apparatus of claim 13 wherein said moving means includes first means for sequentially shifting said wInding means forwardly in incremental steps thereby sequentially to position said winding means for winding on respective coil form steps, second means for sequentially shifting said winding means rearwardly in incremental steps thereby sequentially to position said winding means for winding on respective coil form steps; and means for traversing said winding means across said coil form independently of said first and second shifting means, and further comprising means for coupling said actuating means to said first and second shifting means, said actuating means actuating said first and second shifting means in succession thereby to wind said first and remaining coil parts on said coil form.
16. The apparatus of claim 15 wherein said winding means comprises a flyer mounted on a shaft, and drive means for rotating said shaft and flyer thereby to wind said coil on said coil form; said moving means further including first means for rotatably supporting said shaft, second means for supporting said first support means for axial movement of the same and said shaft and flyer with respect to said coil form, third means for supporting said second support means for axial movement of said first and second support means and said shaft and flyer with respect to said coil form, and means for operatively connecting said traversing means to said second support means; said first shifting means acting upon said first support means, and said second shifting means acting upon one of said first and second support means.
17. The apparatus of claim 16 wherein said moving means further includes means on said second support means and operatively connected to said first support means for selectively moving the same and said shaft and flyer axially in forward and rearward directions; said actuating means including means for actuating said last-named moving means for forward movement of said first support means, shaft and flyer during winding of said first coil part and for rearward movement thereof during winding of said remaining part; said first shifting means comprising first latching means acting upon said first support means for selectively restraining said forward movement of said first support means, shaft and flyer at at least one intermediate position thereby providing said forward incremental steps; said second shifting means comprising second latching means acting upon said first support means for selectively restraining said rearward movement of said first support means, shaft and flyer at at least one intermediate position thereby providing said rearward incremental steps.
18. The apparatus of claim 17 wherein each of said forward and reverse incremental steps generally corresponds to the axial length of the respective coil form steps; said traversing means comprising means for axially oscillating said second support means with a throw generally corresponding to the axial length of said coil form steps.
19. The apparatus of claim 16 wherein said moving means further includes first means on said second support means and operatively connected to said first support means for selectively moving the same and said shaft and flyer axially in forward and reverse directions, and second means on said third support means and operatively connected to said second support means for moving the same and said first support means, shaft and flyer axially rearwardly, said actuating means including means for actuating said first moving means for forward movement of said first support means, shaft and flyer during winding of said first coil part, means for actuating said traversing means for forward movement of said second and first support means, shaft and flyer during winding of said first part, and means for actuating said second moving means for rearward movement of said second and first support means, shaft and flyer during winding of said remaining part; said first shifting means comprising first latching means acting upon said first support means for selectively restraining said forward movement Of said first support means, shaft and flyer at at least one intermediate position thereby providing said forward incremental steps; said second shifting means comprising second latching means acting upon said second support means for selectively restraining said rearward movement of said second and first support means, shaft and flyer at at least one intermediate position thereby to provide said rearward incremental steps.
20. The apparatus of claim 19 wherein said traversing means comprises means for continuously moving said second and first support means, shaft and flyer forwardly thereby winding the turns of said first winding part on said form in a single layer; each of said forward incremental steps being substantially shorter than the axial length of said coil form steps, each of said rearward incremental steps generally corresponding to the axial lengths of the respective coil form steps.
21. The apparatus of claim 20 wherein the cumulative length of said forward incremental steps is no greater than the axial length of one of said coil form steps.
22. The apparatus of claim 21 wherein said drive means includes means for rotating said shaft and flyer at first and second speeds, said second speed being substantially slower than said first speed, said actuating means including means for actuating said drive means to said second speed during said rearward movement of said second and first support means, shaft and flyer.
23. The apparatus of claim 22 wherein said actuating means includes means for actuating said first moving means for reverse movement of said first support means, shaft and flyer during winding of the remaining part of one of said coil sections, and means coupled to said drive means for counting the number of turns wound on said form, said counting means including means for providing a signal in response to winding a selected number of turns on each of said steps in each direction of movement of said flyer, means coupling said actuating means to said first latching means for sequentially actuating the same in response to winding of the selected number of turns on each of said coil form steps in the forward direction, and means coupling said actuating means to said second latching means for sequentially actuating the same in response to winding of the selected number of turns on each of said coil form steps in the reverse direction.
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