CN103023185A - Ventilating channel structure on rotor of high-speed motor - Google Patents

Ventilating channel structure on rotor of high-speed motor Download PDF

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Publication number
CN103023185A
CN103023185A CN2012104879432A CN201210487943A CN103023185A CN 103023185 A CN103023185 A CN 103023185A CN 2012104879432 A CN2012104879432 A CN 2012104879432A CN 201210487943 A CN201210487943 A CN 201210487943A CN 103023185 A CN103023185 A CN 103023185A
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CN
China
Prior art keywords
channel plate
ventilation channel
rotor
ventilating
vent segment
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2012104879432A
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Chinese (zh)
Inventor
王素珍
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Shanghai Electric Group Shanghai Electric Machinery Co Ltd
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Shanghai Electric Group Shanghai Electric Machinery Co Ltd
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Publication date
Application filed by Shanghai Electric Group Shanghai Electric Machinery Co Ltd filed Critical Shanghai Electric Group Shanghai Electric Machinery Co Ltd
Priority to CN2012104879432A priority Critical patent/CN103023185A/en
Publication of CN103023185A publication Critical patent/CN103023185A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a ventilating channel structure on a rotor of a high-speed motor. The ventilating channel structure comprises a rotor core, ventilating trough plates and a plurality of ventilating through vanes, wherein the rotor core is formed by overlapping a plurality of groups of rotor punching plates; each ventilating trough plate is arranged between every two adjacent groups of rotor punching plates; the plurality of ventilating trough vanes are fixed on the ventilating trough plates; a plurality of teeth are placed on the external circular surfaces of the ventilating trough plates; a connecting convex bubble and a pair of positioning flanges are respectively arranged on the surface, connected with each ventilating trough vane, of each ventilating trough plate and on the center line of each tooth; a connecting gap corresponding to each connecting convex bubble on each ventilating trough plate is formed on the side surface, connected with each ventilating trough plate, of each ventilating trough vane; and the ventilating trough vanes are clamped between the pair of positioning flanges, then buckled to the connecting bubbles on the ventilating trough plates through the connecting gaps, and finally fixed on the ventilating through plates in a spot welding way. By adopting the ventilating channel structure on the rotor of the high-speed motor, the risk that the ventilating trough vanes are thrown out of the rotor core can be effectively eliminated, and thereby the safety of the motor in running is greatly improved.

Description

Air duct structure on a kind of high speed rotor of motor
Technical field
The present invention relates to the air duct structure on a kind of high speed rotor of motor.
Background technology
The rotor of high-speed electric expreess locomotive comprises the rotor punching 10 that laminates rotor core 1, be located at the armature spindle 12 of rotor core 1 central authorities and be located at the rotor pressing ring 11 at rotor core 1 two ends.Usually when laminating rotor core 1, rotor punching 10 is divided into some groups, between every two adjacent group rotor punchings 10, air duct 2(is set and sees Fig. 1), the heat that when motor moves motor is produced passes by these air ducts 2, thereby the temperature rise of motor is controlled in the scope of safe operation.Usually air duct is made of ventilation channel plate 21 and vent segment 22, and ventilation channel plate 21 is similar to the shape of rotor punching 10, also be provided with in uniform way on the periphery with rotor punching 10 on the corresponding tooth 20((of rotor tooth see Fig. 2); Vent segment 22(sees Fig. 3 a and Fig. 3 b) be fixed on the center line 200 of each tooth 20 on the ventilation channel plate 21, normally adopt fixing (the seeing Fig. 4 a and Fig. 4 b) of mode of spot welding (three place's solder joints) between vent segment 22 and the ventilation channel plate 21.Press-fit and be integral with rotor punching after vent segment and ventilation channel plate fix.Owing to there not being positioning function to make the center line 200 of vent segment 22 easy offset teeth on the ventilation channel plate 21, if be used for the asynchronous machine of 2 utmost point 60Hz High Rotation Speeds, vent segment and ventilation channel plate adopt above-mentioned fixed form, if at motor speed up to 3600(rev/min) in service, because centrifugal force is too large, have the fly out risk of rotor core of vent segment, affect the safe running performance of motor.
Summary of the invention
The objective of the invention is provides the air duct structure on a kind of high speed rotor of motor in order to overcome the deficiencies in the prior art, and it has eliminated the vent segment risk of rotor core that flies out effectively, thereby has greatly promoted the operational safety performance of motor.
The technical scheme that realizes above-mentioned purpose is: the air duct structure on a kind of high speed rotor of motor, comprise the rotor core that is overrided to form by some group rotor punchings, be located at ventilation channel plate between every adjacent two group rotor punchings and multi-disc and be fixed on vent segment on the ventilation channel plate, wherein, the periphery of described ventilation channel plate is provided with the corresponding tooth of rotor tooth on a plurality of and described rotor punching, on described ventilation channel plate and surface that described vent segment is connected and be respectively equipped with one at the center line of each described tooth and connect protruding bubble; Side with connection described ventilation channel plate described vent segment be provided with described ventilation channel plate on be connected connection breach corresponding to protruding bubble; Described vent segment is to connect breach to be buckled in behind the protruding bubble of connection on the described ventilation channel plate again that the mode by spot welding is fixed on the described ventilation channel plate.
Air duct structure on the above-mentioned high speed rotor of motor, wherein, it is inboard that the protruding bubble of connection on the center line that is located at each tooth on the described ventilation channel plate is positioned at the tooth root of described tooth correspondingly, and being centered close on the same circle of all protruding bubble of connection on the described ventilation channel plate.
Air duct structure on the above-mentioned high speed rotor of motor wherein, connects the degree of depth of breach greater than the height that connects protruding bubble on the described ventilation channel plate on the described vent segment.
Air duct structure road on the above-mentioned high speed rotor of motor, wherein, on described ventilation channel plate and surface that described vent segment is connected also in the inboard of the protruding bubble of each described connection respectively take the center line of each described tooth as symmetry axis is provided with a pair of locating flange, and the thickness of the spacing distance of every pair of locating flange and described vent segment is adaptive.
Air duct structure on the above-mentioned high speed rotor of motor, wherein, all locating flange is centered close on the same circle on the described ventilation channel plate.
Air duct structure on the above-mentioned high speed rotor of motor, wherein, described vent segment is to be fixedly connected with described ventilation channel plate by upper, middle and lower three places spot welding.
The technical scheme of the air duct structure on the high speed rotor of motor of the present invention, adopt ventilation channel plate to increase a protruding bubble of connection and a pair of locating flange at the center line of rotor tooth, on every vent segment, correspondingly offered the connection breach, protruding bubble on the rotor ventilation frid is embedded in the breach on the vent segment accordingly, and be interposed between a pair of locating flange, make vent segment be buckled in tightly on the ventilation channel plate, and then take the mode of spot welding to fix, it has eliminated the vent segment risk of rotor core that flies out effectively, thereby has greatly promoted the operational safety performance of motor.In addition, the fixed form of ventilation channel plate of the present invention and vent segment, vent segment can not depart from the tooth center of ventilation channel plate, stressed more even when press-fiting rotor core, make rotor core press-fit more closely, further stopped the rotor possibility that vent segment flies out when high-speed cruising from rotor core.
Description of drawings
Fig. 1 is the schematic diagram of the air duct structure on the high speed rotor of motor of prior art;
Fig. 2 is the structural representation of ventilation channel plate in the air duct structure on the high speed rotor of motor of prior art;
Fig. 3 a is the structural representation of vent segment in the air duct structure on the high speed rotor of motor of prior art;
Fig. 3 b is the vertical view of Fig. 3 a;
Fig. 4 a is the syndeton schematic diagram of ventilation channel plate and vent segment in the air duct structure on the high speed rotor of motor of prior art;
Fig. 4 b is that the A-A of Fig. 4 a is to zoomed-in view;
Fig. 5 is the schematic diagram of the air duct structure on the high speed rotor of motor of the present invention;
Fig. 6 a is the structural representation of ventilation channel plate in the air duct structure on the high speed rotor of motor of the present invention;
Fig. 6 b is that B-B among Fig. 6 a is to zoomed-in view;
Fig. 7 a is the structural representation of vent segment in the air duct structure on the high speed rotor of motor of the present invention;
Fig. 7 b is that the C-C of Fig. 7 a is to view;
Fig. 8 a is the syndeton schematic diagram of ventilation channel plate and vent segment in the air duct structure on the high speed rotor of motor of the present invention;
Fig. 8 b is that the D-D of Fig. 8 a is to zoomed-in view.
Embodiment
In order to understand technical scheme of the present invention better, also be elaborated by reference to the accompanying drawings below by specific embodiment:
See also Fig. 5, the rotor of high-speed electric expreess locomotive comprises the rotor punching 10 that laminates rotor core 1, be located at the armature spindle 12 of rotor core 1 central authorities and be located at the rotor pressing ring 11 at rotor core 1 two ends, usually when laminating rotor core 1, rotor punching 10 is divided into some groups, between every two adjacent group rotor punchings 10, air duct 2 ' is set.Air duct structure on a kind of high speed rotor of motor of the present invention, comprise the rotor core 1 that is overrided to form by some group rotor punchings 10, be located at ventilation channel plate 21 ' between per two groups of adjacent rotor punchings 10 and multi-disc and be fixed on vent segment 22 ' on the ventilation channel plate 21 ', wherein
The periphery of ventilation channel plate 21 ' is provided with the corresponding tooth 20 of rotor tooth (seeing Fig. 6 a and Fig. 6 b) on a plurality of and the rotor punching, is respectively equipped with a protruding bubble 211 of connection on ventilation channel plate 21 ' and surface that vent segment 22 ' is connected and at the center line 200 of each tooth 20; The protruding bubble 211 of connection on the center line 200 of each tooth 20 is positioned at the tooth root inboard of tooth 20 correspondingly, and ventilation channel plate 21 ' is gone up being centered close on the same circle of all protruding bubbles 211 of connection;
Side with connection ventilation channel plate 21 ' vent segment 22 ' is provided with corresponding with protruding bubble 211 on the ventilation channel plate 21 ' breach 221 (seeing Fig. 7 a and Fig. 7 b) that is connected;
Vent segment 22 ' is that the lower surface that connects breach 221 is connected on the ventilation channel plate 21 ' in the mode that presses closer in the lower surface that connects protruding bubble 211, and the mode of the upper, middle and lower three places spot welding by vent segment 22 ' is fixed on the ventilation channel plate 21 again.
Vent segment 22 ' the upper degree of depth of breach 221 that connects is greater than the height of the protruding bubble 211 of the connection on the ventilation channel plate 21 ', connection breach 221 on the vent segment 22 ' is buckled on the protruding bubble 211 of connection on the ventilation channel plate 21 ' more securely, and make between the surface of the side of vent segment 22 ' and ventilation channel plate 21 ' and also obtain larger contact-making surface, for spot welding creates conditions, and can effectively eliminate the vent segment 22 ' risk of rotor core 1 that flies out, thereby greatly promoted the operational safety performance of motor.
In order to make vent segment 22 ' more be evenly distributed on the ventilation channel plate 21 ', on ventilation channel plate 21 ' and surface that vent segment 22 ' is connected and in each inboard that connects protruding bubble 211 respectively take the center line 200 of each tooth 20 as symmetry axis is provided with a pair of locating flange 212, and the thickness L of the spacing distance of every pair of locating flange 212 and vent segment 22 ' is adaptive; Ventilation channel plate 21 ' the upward center of all locating flanges 212 also is positioned on the same circle.
When vent segment 22 ' is connected with ventilation channel plate 21 ', vent segment 22 ' is interposed between a pair of locating flange 212 first, again the connection breach 221 on the vent segment 22 ' is buckled in the protruding bubble 211 of connection on the ventilation channel plate 21 ', then adopts the mode of spot welding to fix (seeing Fig. 8 a and Fig. 8 b).
Because the center of ventilation channel plate 21 ' upper locating flange 212 lays respectively on the center line 200 of tooth with the center that is connected protruding bubble 211, after both combinations, played well positioning action, after ventilation channel plate 21 ' and vent segment 22 ' are fixed, each vent segment 22 ' is fixed on the center line 200 of tooth 20 corresponding on the ventilation channel plate 21 ' equably, make vent segment 22 ' can not depart from the center line 200 of the tooth 20 of ventilation channel plate 21 ', vent segment 22 ' on the per pass air duct 2 axially is in (see figure 5) on the same straight line rotor, stressed more even when press-fiting rotor core 1, make rotor core 1 press-fit more closely, further stopped the rotor possibility that vent segment 22 ' flies out when high-speed cruising from rotor core.
Those of ordinary skill in the art will be appreciated that, above embodiment illustrates the present invention, and be not to be used as limitation of the invention, as long as in connotation scope of the present invention, all will drop in claims scope of the present invention variation, the modification of the above embodiment.

Claims (6)

1. the air duct structure on the high speed rotor of motor comprises the rotor core that is overrided to form by some group rotor punchings, is located at ventilation channel plate between every adjacent two group rotor punchings and multi-disc and is fixed on vent segment on the ventilation channel plate, it is characterized in that,
The periphery of described ventilation channel plate is provided with the corresponding tooth of rotor tooth on a plurality of and described rotor punching, on described ventilation channel plate and surface that described vent segment is connected and be respectively equipped with one at the center line of each described tooth and connect protruding bubble;
Side with connection described ventilation channel plate described vent segment be provided with described ventilation channel plate on be connected connection breach corresponding to protruding bubble;
Described vent segment is to connect breach to be buckled in behind the protruding bubble of connection on the described ventilation channel plate again that the mode by spot welding is fixed on the described ventilation channel plate.
2. the air duct structure on the high speed rotor of motor according to claim 1, it is characterized in that, it is inboard that the protruding bubble of connection on the center line that is located at each tooth on the described ventilation channel plate is positioned at the tooth root of described tooth correspondingly, and being centered close on the same circle of all protruding bubble of connection on the described ventilation channel plate.
3. the air duct structure on the high speed rotor of motor according to claim 1 is characterized in that, connects the degree of depth of breach on the described vent segment greater than the height that connects protruding bubble on the described ventilation channel plate.
4. the air duct structure road on the high speed rotor of motor according to claim 1, it is characterized in that, on described ventilation channel plate and surface that described vent segment is connected also in the inboard of the protruding bubble of each described connection respectively take the center line of each described tooth as symmetry axis is provided with a pair of locating flange, and the thickness of the spacing distance of every pair of locating flange and described vent segment is adaptive.
5. the air duct structure on the high speed rotor of motor according to claim 4 is characterized in that, all locating flange is centered close on the same circle on the described ventilation channel plate.
6. the air duct structure on the high speed rotor of motor according to claim 1 is characterized in that, described vent segment is to be fixedly connected with described ventilation channel plate by upper, middle and lower three places spot welding.
CN2012104879432A 2012-11-26 2012-11-26 Ventilating channel structure on rotor of high-speed motor Pending CN103023185A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012104879432A CN103023185A (en) 2012-11-26 2012-11-26 Ventilating channel structure on rotor of high-speed motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012104879432A CN103023185A (en) 2012-11-26 2012-11-26 Ventilating channel structure on rotor of high-speed motor

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105162273A (en) * 2015-09-07 2015-12-16 江苏通达动力科技股份有限公司 Improved ventilation groove plate
CN110474458A (en) * 2019-09-24 2019-11-19 上海电气集团上海电机厂有限公司 A kind of rotor punching wind path structure

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10295052A (en) * 1997-04-17 1998-11-04 Meidensha Corp Cooling structure of rotor of dynamo-electric machine
DE102008016758A1 (en) * 2008-03-31 2009-10-01 Alstom Technology Ltd. Cooled stator for e.g. generator, has distance bars used as bar sections and turbulence elements for local increase of heat transfer between cooling agent and stator, where bar sections and elements are provided in gaps in area of teeth
CN201629618U (en) * 2009-12-14 2010-11-10 江苏航天动力机电有限公司 Novel ventilation slot board structure for motor rotor
CN201918815U (en) * 2010-12-12 2011-08-03 南车株洲电机有限公司 Ventilating structure for copper bar rotor of motor
CN202374072U (en) * 2011-11-15 2012-08-08 中电电机股份有限公司 Ventilating groove plate of motor rotor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10295052A (en) * 1997-04-17 1998-11-04 Meidensha Corp Cooling structure of rotor of dynamo-electric machine
DE102008016758A1 (en) * 2008-03-31 2009-10-01 Alstom Technology Ltd. Cooled stator for e.g. generator, has distance bars used as bar sections and turbulence elements for local increase of heat transfer between cooling agent and stator, where bar sections and elements are provided in gaps in area of teeth
CN201629618U (en) * 2009-12-14 2010-11-10 江苏航天动力机电有限公司 Novel ventilation slot board structure for motor rotor
CN201918815U (en) * 2010-12-12 2011-08-03 南车株洲电机有限公司 Ventilating structure for copper bar rotor of motor
CN202374072U (en) * 2011-11-15 2012-08-08 中电电机股份有限公司 Ventilating groove plate of motor rotor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105162273A (en) * 2015-09-07 2015-12-16 江苏通达动力科技股份有限公司 Improved ventilation groove plate
CN110474458A (en) * 2019-09-24 2019-11-19 上海电气集团上海电机厂有限公司 A kind of rotor punching wind path structure

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Application publication date: 20130403