CN105827029A - Rail grinding vehicle motor capable of adopting two power supply modes - Google Patents
Rail grinding vehicle motor capable of adopting two power supply modes Download PDFInfo
- Publication number
- CN105827029A CN105827029A CN201510008625.7A CN201510008625A CN105827029A CN 105827029 A CN105827029 A CN 105827029A CN 201510008625 A CN201510008625 A CN 201510008625A CN 105827029 A CN105827029 A CN 105827029A
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- China
- Prior art keywords
- power supply
- stator
- rail grinding
- groove
- adopting
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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.)
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Abstract
The invention discloses a rail grinding vehicle motor capable of adopting two power supply modes, which belongs to a rail grinding vehicle motor capable of adopting power supply by a synchronous generator set and an inverter and mainly solves the problems that in the case of full voltage starting of power supply by the synchronous generator set, starting current is large; and although the starting current in the case of power supply by the inverter is small, the power quality is low. The rail grinding vehicle motor capable of adopting two power supply modes comprises a stator and a rotor, and is characterized in that the shape of a groove accommodating a stator winding in a stator iron core is a half-closed round bottom groove, a corona-resistance insulated material is arranged between the stator winding and the half-closed round bottom groove, and the groove in a rotor iron core is in a shape of a cutter. The motor of the invention is provided with the stator iron core with the half-closed round bottom groove and the rotor iron core with the cutter-shaped groove capable of providing two power supply modes, the inverter is adopted for power supply when the motor is started, the synchronous generator set is adopted for power supply in the case of long-term work, and thus, large starting current can be avoided, fluctuation of harmonic power is also avoided, and the service life of the motor is improved.
Description
Technical field
The present invention relates to a kind of steel rail grinding tramcar motor meeting two kinds of power supply modes, particularly relate to one and can meet and power lower starting under no load at synchronous generator unit, the steel rail grinding tramcar motor of starting under no load under inverter power supply can be met again.
Background technology
At present, known rail grinding machine motor mode is to be powered by synchronous generator unit, and its advantage is that power quality is high, without harmonic disturbance, when shortcoming is full pressure starting, starting current is big, it is about 7 times of rated current, the shortcoming such as easy scaling loss steel rail grinding tramcar motor during starting；Power supply mode uses inverter power supply mode, its advantage is can to start with low-frequency and low-voltage, starting current is little, it is unlikely to be burnt steel rail grinding tramcar motor, shortcoming is that inverter power supply power quality is low, there is harmonic disturbance, reduce insulation ag(e)ing intensity during longtime running, reduce the service life of steel rail grinding tramcar motor.
Summary of the invention
The invention aims to overcome above-mentioned deficiency, and provide starting time use inverter power supply, being switched to Synchronous generator during longtime running powers, and meets the steel rail grinding tramcar motor of two kinds of power supply modes.
The technical solution of the present invention is: motor includes stator and rotor, it is characterized in that: in stator core, the shape of the groove of embedding stator winding is a semi-closed port round bottomed vessel, being provided with corona-resistant insulation material between bottom stator winding and this semi-closed port round bottomed vessel, the flute profile in rotor core is a knife-edge groove.
Stator winding in semi-closed port round bottomed vessel groove described in the technical solution of the present invention uses frequency conversion enamel-covered wire.
Due to the fact that on steel rail grinding tramcar motor by design meet two kinds of power supply modes rail grinding machine motor stator-core grooved be semi-closed port round bottomed vessel, rotor core grooved is knife-edge groove, stator winding uses frequency conversion enamel-covered wire and corona-resistant insulation material to meet two kinds of power supply modes of adaptation, when steel rail grinding tramcar motor uses inverter power supply when starting, use Synchronous generator to power when long-term work, the problem that starting current is big can be evaded, the problem that can evade again Harmonic Current fluctuation, significantly improves motor service life.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the stator built-in line figure of the present invention.
Fig. 3 is the A mono-A view in Fig. 2.
Fig. 4 is the profile of groove of the stator core of the present invention.
Fig. 5 is the grooved enlarged drawing on Fig. 4.
Fig. 6 is the rotor core profile of groove of the present invention.
Fig. 7 is the grooved enlarged drawing on Fig. 6.
Detailed description of the invention
As shown in Fig. 1,2,3,4,5,6,7, the steel rail grinding tramcar motor 1 of the present invention includes stator 2 and rotor 3, stator 2 is fixed in support 4, stator 2 is made up of stator core 6 and the stator winding 5 being fixed in stator core 6 groove, and rotor 3 is made up of rotating shaft 10 and the rotor core 11 being fixed in rotating shaft 10；Flute profile in stator core 6 is a semi-closed port round bottomed vessel 7, semi-closed port round bottomed vessel 7 groove inner bottom part in stator core 6 is provided with corona-resistant insulation material 8, stator winding 5 in stator core 6 uses frequency conversion enamel-covered wire, the stator winding 5 of frequency conversion enamel-covered wire is embedded in semi-closed port round bottomed vessel 7 groove of stator core 6, between stator winding 5 and stator core 6 semi-closed port round bottomed vessel 7, corona-resistant insulation material 8 is set, after stator winding 5 shaping, stator winding 5 welds with lead wire 12, wrap up firmly with corona-resistant insulation material 8, carry out VPI vacuum pressure impregnation and form stator 2, this stator 2 hot jacket is formed on support 4 stator 2 of motor 1；Flute profile in rotor core 11 is a knife-edge groove 9, and rotor core 11 hot jacket of this knife-edge groove is formed in rotating shaft 10 rotor 3 of motor 1.
Claims (2)
1. the steel rail grinding tramcar motor meeting two kinds of power supply modes, including stator (2) and rotor (3), it is characterized in that: the shape of the groove of the upper embedding stator winding (5) of stator core (6) is a semi-closed port round bottomed vessel (7), being provided with corona-resistant insulation material (8) between stator winding (5) and this semi-closed port round bottomed vessel (7) bottom, the flute profile in rotor core (11) is a knife-edge groove (9).
A kind of steel rail grinding tramcar motor the most according to claim 1, is characterized in that: the stator winding (5) in described semi-closed port round bottomed vessel (7) groove uses frequency conversion enamel-covered wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510008625.7A CN105827029A (en) | 2015-01-08 | 2015-01-08 | Rail grinding vehicle motor capable of adopting two power supply modes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510008625.7A CN105827029A (en) | 2015-01-08 | 2015-01-08 | Rail grinding vehicle motor capable of adopting two power supply modes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105827029A true CN105827029A (en) | 2016-08-03 |
Family
ID=56513408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510008625.7A Pending CN105827029A (en) | 2015-01-08 | 2015-01-08 | Rail grinding vehicle motor capable of adopting two power supply modes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105827029A (en) |
-
2015
- 2015-01-08 CN CN201510008625.7A patent/CN105827029A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160803 |
|
| WD01 | Invention patent application deemed withdrawn after publication |