CN203445764U - High-power asynchronous traction motor rotor - Google Patents

High-power asynchronous traction motor rotor Download PDF

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Publication number
CN203445764U
CN203445764U CN201320557974.0U CN201320557974U CN203445764U CN 203445764 U CN203445764 U CN 203445764U CN 201320557974 U CN201320557974 U CN 201320557974U CN 203445764 U CN203445764 U CN 203445764U
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CN
China
Prior art keywords
rotating shaft
traction motor
rotor
press plate
iron
Prior art date
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.)
Expired - Fee Related
Application number
CN201320557974.0U
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Chinese (zh)
Inventor
孟语灵
尚诗贤
李广
马红军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CRRC Yongji Electric Co Ltd
Original Assignee
Yongji Xinshisu Electric Equipment Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yongji Xinshisu Electric Equipment Co Ltd filed Critical Yongji Xinshisu Electric Equipment Co Ltd
Priority to CN201320557974.0U priority Critical patent/CN203445764U/en
Application granted granted Critical
Publication of CN203445764U publication Critical patent/CN203445764U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a traction motor, and particularly relates to a high-power asynchronous traction motor rotor. The high-power asynchronous traction motor rotor comprises a rotating shaft (1). The iron core position of the rotating shaft (1) is sleeved with an iron core punching sheet (3) whose two ends are tightly pressed by a transmission end rotor pressing plate (2) and a non-transmission end rotor pressing plate (4). The iron core punching sheet (3) is provided with a punching sheet groove which is used for insertion of a guide strip (5). A transmission end head part of the rotating shaft (1) is provided with a coupling (10) via interference fit. The coupling (10) is provided with a balance groove which is internally provided with a balance block (8). The high-power asynchronous traction motor rotor is reasonable in design, simple in structure, economical in cost and safe to use so that the bearing service life and safety and reliability of the traction motor are enhanced.

Description

High-power Asynchronous Traction Motor rotor
Technical field
The utility model relates to traction electric machine, is specially a kind of High-power Asynchronous Traction Motor rotor.
Background technology
AC drive locomotive adopts the drive system (as Fig. 2) that driving gear cantilever type is installed conventionally at present, the rotor of corresponding asynchronous traction motor adopts axis of cone export structure form conventionally, as shown in Figure 1, existing asynchronous traction motor rotor is comprised of rotating shaft 1, iron-core lamination 3, rotor press plate etc., iron-core lamination 3 is folded rear two ends and is compressed with driving end rotor press plate 2 and non-transmision end rotor press plate 4, iron-core lamination 3 and driving end and non-transmision end rotor press plate 2,4 overall thermal are enclosed within rotating shaft 1, then use round nut axial restraint; Rotor mouse cage is comprised of sliver 5 and end ring 6, and wherein end ring 6 groove at side surfaces, in sliver 5 insertion grooves, are welded as rotor mouse cage by induction brazing (silver solder) by sliver 5 and the end ring 6 at two ends; Retaining ring 7 is enclosed within end ring 6 cylindricals, with screw 9, by the compensating groove of balance weight 8 fixed conveyor end rotor press plates 2, non-transmision end rotor press plate 4, regulates the amount of unbalance of rotor with balance weight 8.
During work, as shown in Figure 2, the motor bearings 21 that rotating shaft 1 is installed by bearing position 101 is arranged on rotor 20 in motor, and axial cone 102 cover driving gear output torques, by pinion 23, gear wheel 24 axle shafts 26 and wheel 25.
The shortcoming existing is as follows:
1, rotating shaft is installed driving gear at axial cone position by interference, engaging force existence due to gear, cause rotating shaft to bear larger moment of flexure and moment of torsion at driving end, the stress at rotating shaft transmission end axial cone position and bearing position position is strengthened, easily in stress large part, occur fracture defect.
2, because the larger moment of flexure that gear mesh force produces is born in rotating shaft, cause the amount of deflection of rotating shaft to increase, when bending stress surpasses the strength degree of rotating shaft material, will cause the flexural deformation of rotating shaft.
3, this kind of structure installed bearing at driving end bearing position, and because gear mesh force produces larger moment of flexure, for offsetting this moment of flexure, the larger radial load that driving end bearing bears, along with the increasing of bearing load, has seriously reduced the useful life of bearing.
4, for improving the reliability of rotating shaft, conventionally adopt the method that increases rotating shaft diameter and bearing size, cause the cost of rotating shaft and bearing to increase considerably.
In a word, due to improving constantly of the hauling capacity of a locomotive, cause the output torque of traction electric machine to improve constantly, reached at present 12000N.m level, make the rotating shaft output of traction electric machine bear larger moment of torsion; Owing to adopting gear transmission mode, gear mesh force causes rotating shaft to bear larger moment of flexure simultaneously simultaneously.In the time of above-mentioned moment of torsion and moment of flexure, exist, cause rotating shaft stress to strengthen, coefficient of safety reduces, and has a strong impact on the security reliability of rotating shaft.
Summary of the invention
The problems referred to above that the utility model exists in order to solve current asynchronous traction motor rotor, provide a kind of novel High-power Asynchronous Traction Motor rotor.
The utility model is to adopt following technical scheme to realize:
A kind of High-power Asynchronous Traction Motor rotor, comprise rotating shaft, the upper cover in iron core position of described rotating shaft has two ends to be transmitted the iron-core lamination of end rotor press plate and non-transmision end rotor press plate compression, on described iron-core lamination, have the punching groove inserting for sliver, the driving end shaft head of described rotating shaft is provided with coupling by interference fit, on described coupling, have compensating groove, in described compensating groove, balance weight is installed.
During work, novel AC Drive personal rapid transit electric locomotive adopts main drive gear bearing two ends formula drive system, as shown in Figure 6, coupling is installed in the driving end interference of rotating shaft, the location rotor that is connected with gear box side coupling by coupling, and the non-transmision end bearing position of rotating shaft is installed cylinder roller bearing, by driving end coupling and the whole rotor of non-transmision end bearings, rotor is arranged on to motor internal, machine shaft bear rotor gravity and magnetic pull like this, coupling output torque.
Based on said process, traction electric machine rotor adopts the version of coupling output torque, has reduced the load of rotating shaft, has improved its security reliability; Can effectively reduce rotor material use amount, rotor quality is reduced to 769kg from original structure 805kg, has reduced design cost simultaneously; The traction electric machine safety on line of the application of the invention rotor moves, and has fully proved the security reliability of the utility model traction electric machine rotor.
Rotor design described in the utility model is reasonable, simple in structure, cost savings, uses safety, has improved bearing useful life and the security reliability of traction electric machine.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing rotor.
Fig. 2 is the driving system structure schematic diagram that driving gear cantilever type is installed.
Fig. 3 is the structural representation of rotor described in the utility model.
Fig. 4 is the structural representation of tooth support.
Fig. 5 is the partial enlarged drawing of rotor described in the utility model.
Fig. 6 is main drive gear bearing two ends formula driving system structure schematic diagrames.
In figure, 1-rotating shaft, 2-driving end rotor press plate, 3-iron-core lamination, 4-non-transmision end rotor press plate, 5-sliver, 6-end ring, 7-retaining ring, 8-balance weight, 9-screw, 10-coupling, 11-tooth support, 12-balancing patch, 20-rotor, 21-motor bearings, the outer axis of cone of 22-, 23-pinion, 24-gear wheel, 25-wheel, 26-axletree, 27-axle suspension bearing, 29-gear-bearing, 101-bearing position, 102-axial cone.
Embodiment
Below in conjunction with accompanying drawing, specific embodiment of the utility model is elaborated.
As shown in Figure 3, a kind of High-power Asynchronous Traction Motor rotor, comprise rotating shaft 1, the upper cover in iron core position of described rotating shaft 1 has two ends to be transmitted the iron-core lamination 3 of end rotor press plate 2 and non-transmision end rotor press plate 4 compressions, on described iron-core lamination 3, have the punching groove inserting for sliver 5, the driving end shaft head of described rotating shaft 1 is provided with coupling 10 by interference fit, on described coupling 10, has compensating groove, in described compensating groove, by screw 9, balance weight 8 is installed, regulates the amount of unbalance of rotor.
As shown in Figure 4, described driving end rotor press plate 2 and non-transmision end rotor press plate 4 are respectively and circular tooth support 11 is installed between iron-core lamination 3, tooth on described tooth support 11 just in time corresponding on iron-core lamination 3 by the tooth forming between adjacent punching groove, for better, must compress core stamping 3, improve rotor stability.
As shown in Figure 5, the outside of described driving end rotor press plate 2 and non-transmision end rotor press plate 4 is provided with balancing patch 12 by screw 9, regulates the amount of unbalance of rotor.Balancing patch and the balance weight on coupling realized on rotor press plate coordinate the amount of unbalance that regulates rotor jointly, increase the utilization stability of rotor.

Claims (3)

1. a High-power Asynchronous Traction Motor rotor, comprise rotating shaft (1), the upper cover in iron core position of described rotating shaft (1) has two ends to be transmitted the iron-core lamination (3) of end rotor press plate (2) and non-transmision end rotor press plate (4) compression, on described iron-core lamination (3), have the punching groove inserting for sliver (5), it is characterized in that: the driving end shaft head of described rotating shaft (1) is provided with coupling (10) by interference fit, described coupling has compensating groove on (10), and balance weight (8) is installed in described compensating groove.
2. High-power Asynchronous Traction Motor rotor according to claim 1, it is characterized in that: respectively and circular tooth support (11) is installed between iron-core lamination (3), the tooth on described tooth support (11) is just in time upper by the tooth forming between adjacent punching groove corresponding to iron-core lamination (3) for described driving end rotor press plate (2) and non-transmision end rotor press plate (4).
3. High-power Asynchronous Traction Motor rotor according to claim 1 and 2, is characterized in that: the outside of described driving end rotor press plate (2) and non-transmision end rotor press plate (4) is provided with balancing patch (12).
CN201320557974.0U 2013-09-10 2013-09-10 High-power asynchronous traction motor rotor Expired - Fee Related CN203445764U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320557974.0U CN203445764U (en) 2013-09-10 2013-09-10 High-power asynchronous traction motor rotor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320557974.0U CN203445764U (en) 2013-09-10 2013-09-10 High-power asynchronous traction motor rotor

Publications (1)

Publication Number Publication Date
CN203445764U true CN203445764U (en) 2014-02-19

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Application Number Title Priority Date Filing Date
CN201320557974.0U Expired - Fee Related CN203445764U (en) 2013-09-10 2013-09-10 High-power asynchronous traction motor rotor

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CN (1) CN203445764U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103441631A (en) * 2013-09-10 2013-12-11 永济新时速电机电器有限责任公司 Large-power asynchronous traction motor rotor
CN111525719A (en) * 2020-04-29 2020-08-11 中车永济电机有限公司 Motor rotor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103441631A (en) * 2013-09-10 2013-12-11 永济新时速电机电器有限责任公司 Large-power asynchronous traction motor rotor
CN111525719A (en) * 2020-04-29 2020-08-11 中车永济电机有限公司 Motor rotor

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CP01 Change in the name or title of a patent holder

Address after: 044500 Yongji City, Shanxi Province, the city of motor street, No. 18, No.

Patentee after: CRRC YONGJI ELECTRIC CO., LTD.

Address before: 044500 Yongji City, Shanxi Province, the city of motor street, No. 18, No.

Patentee before: Yongji Xinshisu Motor Electrical Appliance Co., Ltd.

CP01 Change in the name or title of a patent holder
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140219

Termination date: 20180910

CF01 Termination of patent right due to non-payment of annual fee