CN103475127A - Rotor core combination key for high-speed high-power motor - Google Patents
Rotor core combination key for high-speed high-power motor Download PDFInfo
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- CN103475127A CN103475127A CN2013104400085A CN201310440008A CN103475127A CN 103475127 A CN103475127 A CN 103475127A CN 2013104400085 A CN2013104400085 A CN 2013104400085A CN 201310440008 A CN201310440008 A CN 201310440008A CN 103475127 A CN103475127 A CN 103475127A
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Abstract
The invention discloses a rotor core combination key for a high-speed high-power motor. The rotor core combination key for the high-speed high-power motor comprises a rotor core, a rotary shaft, major keys, tangential taper keys and radial taper keys, wherein corresponding major key grooves are formed in the rotary shaft and in the rotor core respectively, the rotary shaft is sleeved with the rotor core in a heating mode, the major keys are installed in the major key grooves which are formed in the rotor core and in the rotary shaft respectively, a pair of tangential taper keys which can guarantee that the rotor core is supported tightly in the tangential direction are arranged on the two sides of each major key respectively, corresponding tangential taper key grooves are further formed in the rotary shaft and in the rotor core respectively, and a pair of radial taper keys which can guarantee that the rotary shaft and the rotor core are tightly supported in the radial direction are installed in the tangential taper key grooves. According to the rotor core combination key for the high-speed high-power motor, the rotor core on the circumference is fixed in the tangential direction and in the radial direction in a wedging mode, the moment of force of the motor can be transmitted reliably, and the motor can operate safely and reliably under the severe working conditions such as a high-speed condition, an alternating torque condition, an impact load condition and the like.
Description
Technical field
The invention belongs to technical field of motors, relate to a kind of key, relate in particular to the rotor core key of super high power, high rotating speed asynchronous motor.
Background technology
When three-phase symmetrical exchanges winding by the three-phase symmetrical alternating current, to in the motor internal air gap, produce rotating magnetic field, the conductor of rotor winding in rotating magnetic field by cutting magnetic line, and induced potential, rotor conductor has of one's own closed circuit by end ring, thereby produces induced current, and the rotor conductor of current-carrying is subject to electromagnetic force in rotating magnetic field, electromagnetic force will produce electromagnetic torque on rotor, and drive rotor.
From this process, can find out, the confidential load operation that drags of asynchronous electric, must be delivered to the moment of slot bar in rotating shaft, for small machine, often without key, but smooth or axial compression annular knurl entered in rotor core; For middle size motor, the transmission of moment generally gets final product with singly-bound; For the motor of moment surging, often adopt straight pin, half of this pin is contained in the rotor field spider pin-and-hole, and second half is contained in the rotor core pin-and-hole.
Because our national equipment manufacture development is relatively backward, at a high speed, the many dependence on import of super high power motor, crucial, core technology all rests in foreign corporation's hand.Under the overall background of domestic motor replace imported motor, we are according to the characteristics of high speed, super high power motor, determine the system of selection of rotor core key: at first should prevent in rotor core hypervelocity or hot jacket situation unshakable in one's determination, rotor core is radially loosening, rotor core must have large coordinating tightly to measure with rotating shaft, but coordinate tight amount too large, can cause the iron core pressure mounting difficulty, therefore need to increase radially stretching key in rational the cooperation on tight amount basis; Secondly, the weight ratio of large power rotor itself more greatly, often has impact load, and load rotating inertia is larger, and its rotor core is very important in the wedging of tangential direction.Therefore, be badly in need of a kind ofly can meeting the rotor core Macintosh that the high-speed high-power motor is used.
Summary of the invention
The object of the invention is to overcome the shortcoming of above-mentioned prior art, a kind of high-speed high-power rotor iron core of motor Macintosh is provided, play fixedly pattern of rotor core by tangential on circumference and mutual wedging radially, guarantee the reliable delivery of motor torque, guaranteed motor operation safely and reliably under the bad working environments such as high speed, alternating torque and impact load simultaneously.
The objective of the invention is to be achieved through the following technical solutions:
This high-speed high-power rotor iron core of motor Macintosh, comprise rotor core, rotating shaft, major key, tangential wedge key and wedge key radially; Be provided with corresponding primary key slot in rotating shaft and rotor core; Described rotor core hot jacket is in rotating shaft, and described major key is packed in the primary key slot of rotor core and rotating shaft, is respectively arranged with a pair of tangential wedge key that can guarantee the tangential stretching of rotor core in the major key both sides; Also be provided with corresponding tangential wedge key keyway in described rotating shaft and rotor core, in tangential wedge key keyway, installation is a pair of can guarantee the radially radially wedge key of stretching of rotating shaft and rotor core.
Above-mentioned major key shape of cross section is T shape, and the stub end of major key coordinates with the keyway of rotor core, and the little head end of major key is put into the keyway of rotating shaft.
Further, after major key installs, squeeze into the major key microcephaly with two pairs of tangential wedge keys and hold two sides in the rotating shaft keyway.
Also be provided with the major key guide pin hole in above-mentioned rotating shaft, be provided with gathering sill in rotor core, when the hot jacket rotor core, the guide finger of the keyway position consistency of pack in the major key guide pin hole keyway that can guarantee rotor core and rotating shaft, described guide finger is packed in the gathering sill of rotor core.
Be provided with one group of primary key slot and five groups of tangential wedge key keyways in above-mentioned rotating shaft and rotor core, primary key slot and tangential wedge key shaft with key way are on the internal face of the lateral surface that evenly is arranged on rotating shaft and rotor core.
Further, the every pair of tangential wedge key or radially the mating surface between wedge key be at least 80%, between mating surface, polish smooth.
The present invention has following beneficial effect:
The rotor core of high-speed high-power rotor iron core of motor Macintosh of the present invention by tangential on circumference and mutual wedging radially be pattern fixedly, guaranteed the reliable delivery of motor torque, guaranteed motor operation safely and reliably under the bad working environments such as high speed, alternating torque and impact load simultaneously, reduced due to FAQs such as the loosening vibration caused of rotor core, noises.Simultaneously, a kind of high-speed high-power rotor iron core of motor of the present invention Macintosh have easy to operate, cost is low, the advantage such as reliable.
The accompanying drawing explanation
Fig. 1 is major key 3 cross sectional representation of the present invention;
The assembling schematic diagram of the major key that Fig. 2 is rotor core Macintosh of the present invention and tangential stretching key;
Fig. 3 is radially stretching key schematic diagram of the present invention;
Fig. 4 is whole assembling schematic diagram of the present invention.
Wherein: 1 is rotor core; 2 is rotating shaft; 3 is major key; 4 is tangential wedge key; 5 is wedge key radially.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail:
Referring to Fig. 4, high-speed high-power rotor iron core of motor Macintosh of the present invention comprises rotor core 1, rotating shaft 2, major key 3, tangential wedge key 4 and wedge key 5 radially; Be provided with corresponding primary key slot in rotating shaft 2 and rotor core 1; Described rotor core 1 hot jacket is in rotating shaft 2, and described major key 3 is packed in the primary key slot of rotor core 1 and rotating shaft 2, is respectively arranged with a pair of tangential wedge key 4 that can guarantee the tangential stretching of rotor core 1 in major key 3 both sides; Also be provided with corresponding tangential wedge key keyway in described rotating shaft 2 and rotor core 1, in tangential wedge key keyway, installation is a pair of can guarantee the radially radially wedge key 5 of stretching of rotating shaft 2 and rotor core 1.
Also be provided with the major key guide pin hole in described rotating shaft 2, be provided with gathering sill in rotor core 1, when hot jacket rotor core 1, pack in the major key guide pin hole guide finger of keyway position consistency of the keyway that can guarantee rotor core 1 and rotating shaft 2, described guide finger is packed in the gathering sill of rotor core 1.
As shown in Figure 1: major key 3 shape of cross sections of the present invention are T shape, and the stub end of major key 3 coordinates with the keyway of rotor core 1, and the little head end of major key 3 is put into the keyway of rotating shaft 2.After major key 3 installs, squeeze into major key 3 microcephalies with two pairs of tangential wedge keys 4 and hold two sides in rotating shaft 2 keyways, by the radially stretching of rotor core 1, as shown in Figure 2.
Of the present invention every pair radially wedge key 5 as shown in Figure 3, every pair of tangential wedge key 4 of the present invention with every pair radially wedge key 5 is similar.Tangential wedge key 4 and radially wedge key 5 to process gradient, repeatedly join dozen, key is constantly ground, mating surface is at least 80%.The tangential wedge key 4 of setting of the present invention and adding of wedge key 5 radially, make it possible to moment is delivered in rotating shaft 2 reliably, thereby drag load, normally moves, and simultaneously, prevented rotor core 1 radial thermal expansion and the iron core looseness that causes.
As Fig. 1, in most preferred embodiment of the present invention, be provided with altogether one group of primary key slot and four groups of tangential wedge key keyways in described rotating shaft 2 and rotor core 1, primary key slot and tangential wedge key shaft with key way are on the internal face of the lateral surface that evenly is arranged on rotating shaft 2 and rotor core 1.As shown in the figure, it thinks outer six projections of evenly stretching out to the shape of rotating shaft 2, offers primary key slot or tangential wedge key keyway in the upper end of five projections, and does not offer keyway again with on a symmetrical projection of the projection of offering primary key slot.Primary key slot or tangential wedge key keyway are offered in rotor core 1 on the inwall relative with five projections of rotating shaft 2, thereby both are closely cooperated on all directions by keyway and key.
Assembling process of the present invention is as follows:
In sum, a kind of high-speed high-power rotor iron core of motor of the present invention Macintosh is easy for installation, easy to operate, after installation, guarantee the reliable delivery of motor torque, guaranteed motor operation safely and reliably under the bad working environments such as high speed, alternating torque and impact load simultaneously.
Claims (6)
1. a high-speed high-power rotor iron core of motor Macintosh, is characterized in that, comprises rotor core (1), rotating shaft (2), major key (3), tangential wedge key (4) and wedge key (5) radially; Be provided with corresponding primary key slot in rotating shaft (2) and rotor core (1); Described rotor core (1) hot jacket is in rotating shaft (2), described major key (3) is packed in the primary key slot of rotor core (1) and rotating shaft (2), is respectively arranged with a pair of tangential wedge key (4) that can guarantee the tangential stretching of rotor core (1) in major key (3) both sides; Also be provided with corresponding tangential wedge key keyway in described rotating shaft (2) and rotor core (1), in tangential wedge key keyway, installation is a pair of can guarantee the radially radially wedge key (5) of stretching of rotating shaft (2) and rotor core (1).
2. high-speed high-power rotor iron core of motor Macintosh according to claim 1, it is characterized in that, described major key (3) shape of cross section is T shape, and the stub end of major key (3) coordinates with the keyway of rotor core (1), and the little head end of major key (3) is put into the keyway of rotating shaft (2).
3. high-speed high-power rotor iron core of motor Macintosh according to claim 2, is characterized in that, after major key (3) installs, squeezes into major key (3) microcephaly with two pairs of tangential wedge keys (4) and hold two sides in rotating shaft (2) keyway.
4. high-speed high-power rotor iron core of motor Macintosh according to claim 2, it is characterized in that, described rotating shaft also is provided with the major key guide pin hole on (2), rotor core is provided with gathering sill on (1), when hot jacket rotor core (1), pack in the major key guide pin hole guide finger of keyway position consistency of the keyway that can guarantee rotor core (1) and rotating shaft (2), described guide finger is packed in the gathering sill of rotor core (1).
5. high-speed high-power rotor iron core of motor Macintosh according to claim 1, it is characterized in that, be provided with one group of primary key slot and four groups of tangential wedge key keyways in described rotating shaft (2) and rotor core (1), primary key slot and tangential wedge key shaft with key way are on the internal face of the lateral surface that evenly is arranged on rotating shaft (2) and rotor core (1).
6. high-speed high-power rotor iron core of motor Macintosh according to claim 1, is characterized in that, every pair of tangential wedge key (4) or radially wedge key (5) mating surface be at least 80%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104400085A CN103475127A (en) | 2013-09-25 | 2013-09-25 | Rotor core combination key for high-speed high-power motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104400085A CN103475127A (en) | 2013-09-25 | 2013-09-25 | Rotor core combination key for high-speed high-power motor |
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| CN103475127A true CN103475127A (en) | 2013-12-25 |
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| CN2013104400085A Pending CN103475127A (en) | 2013-09-25 | 2013-09-25 | Rotor core combination key for high-speed high-power motor |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201057631Y (en) * | 2007-04-27 | 2008-05-07 | 上海电气集团上海电机厂有限公司 | Structure of large load motor iron core and key of rotating shaft for transmitting torque |
| CN201075750Y (en) * | 2007-06-14 | 2008-06-18 | 天津市天发重型水电设备制造有限公司 | Connecting device for rotor spider and floating rim of waterwheel generator rotor |
| CN201629615U (en) * | 2010-01-05 | 2010-11-10 | 昆明电机厂有限公司 | Bracket type solid magnetic yoke of hydraulic generator |
| CN101944786A (en) * | 2010-10-15 | 2011-01-12 | 无锡哈电电机有限公司 | Rotor iron core structure of bipolar motor |
| EP2387132A2 (en) * | 2010-05-13 | 2011-11-16 | Hitachi, Ltd. | Rotor of rotating electrical machine |
| CN203481952U (en) * | 2013-09-25 | 2014-03-12 | 西安泰富西玛电机有限公司 | Rotor core combination key for high-speed high-power motor |
-
2013
- 2013-09-25 CN CN2013104400085A patent/CN103475127A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201057631Y (en) * | 2007-04-27 | 2008-05-07 | 上海电气集团上海电机厂有限公司 | Structure of large load motor iron core and key of rotating shaft for transmitting torque |
| CN201075750Y (en) * | 2007-06-14 | 2008-06-18 | 天津市天发重型水电设备制造有限公司 | Connecting device for rotor spider and floating rim of waterwheel generator rotor |
| CN201629615U (en) * | 2010-01-05 | 2010-11-10 | 昆明电机厂有限公司 | Bracket type solid magnetic yoke of hydraulic generator |
| EP2387132A2 (en) * | 2010-05-13 | 2011-11-16 | Hitachi, Ltd. | Rotor of rotating electrical machine |
| CN101944786A (en) * | 2010-10-15 | 2011-01-12 | 无锡哈电电机有限公司 | Rotor iron core structure of bipolar motor |
| CN203481952U (en) * | 2013-09-25 | 2014-03-12 | 西安泰富西玛电机有限公司 | Rotor core combination key for high-speed high-power motor |
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Application publication date: 20131225 |