CN2852527Y - Wide band speed-regulating constant power high-speed electric main shaft - Google Patents
Wide band speed-regulating constant power high-speed electric main shaft Download PDFInfo
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- CN2852527Y CN2852527Y CNU2005200767791U CN200520076779U CN2852527Y CN 2852527 Y CN2852527 Y CN 2852527Y CN U2005200767791 U CNU2005200767791 U CN U2005200767791U CN 200520076779 U CN200520076779 U CN 200520076779U CN 2852527 Y CN2852527 Y CN 2852527Y
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- main shaft
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- electric main
- constant power
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Abstract
The utility model discloses a wide band speed regulating constant power high speed electric main shaft which comprises a machine shell, a main shaft and a motor, wherein the input end of the motor is connected in series with a frequency changing speed regulating device. The frequency changing speed regulating device is composed of a vector control calculation link, a two thirds transfer circuit, an alternating current following control circuit, a magnetic flux judging and weak magnetism link, an SPWM inverter, a stator current testing circuit and a speed detection feedback circuit, wherein the speed detection feedback circuit is connected in series in the space between the stator current testing circuit and the vector control calculation link, the magnetic flux judging and weak magnetic link is connected in parallel with the vector control calculation link, and the alternating current following control circuit is connected with the SPWM inverter. The utility model with the structure is used, the high speed electric main shaft has large turning moment under the condition of low speed, and has constant power under the condition of high speed, thereby, the speed regulating range of the high speed main shaft is enlarged. The wide band speed regulating constant power high speed electric main shaft is especially suitable for an electric main shaft of a machine tool in a processing center to use.
Description
Technical field
The utility model relates to a kind of electrical spindle for machine tool technology, especially relates to the permanent power high-speed electric main shaft of a kind of wideband speed governing technology.
Background technology
The electricity main axle unit is the very high electromechanical integrated product of a kind of technology content, through development and perfect constantly, its application spreads all over machine industry, bearing industry, electronics processing industry, Mould Machining industry, instrument processing industry and all need the enterprise of high speed rotating and High-speed machining.The high-speed electric main shaft of existing permanent torque design power when low speed reduces, torque is less, and speed adjustable range has only 1: 10.
Summary of the invention
The technical problems to be solved in the utility model is to make high-speed electric main shaft that bigger torque be arranged when low speed, and constant power is arranged when high speed, thereby enlarges the speed adjustable range of high-speed electric main shaft.
Technical problem to be solved in the utility model is achieved by the following technical solution: it comprises casing, main shaft, motor, and the input of motor is serially connected with a RHVC.Described RHVC is followed control circuit, magnetic flux judgement and weak magnet ring joint, SPWM inverter, stator current testing circuit and speed detection feedback circuit by vector control operation link, 2/3 translation circuit, alternating current and formed: the speed that is in series with between stator current testing circuit and vector control operation link detects feedback circuit, magnetic flux judgement and weak magnet ring joint are in parallel with the vector control operation link, and alternating current follows control circuit and the SPWM inverter links.
The said structure that the utility model adopts makes the speed adjustable range of the permanent power high-speed electric main shaft of this wideband speed governing can reach 1: 100, thereby has enlarged the scope of application of lathe.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described further:
Figure 1 shows that the permanent power high-speed electric main shaft of wideband speed governing RHVC block diagram
Figure 2 shows that permanent power high-speed electric main shaft frequency of wideband speed governing and voltage relationship figure
Embodiment
As shown in Figure 1, RHVC is followed control circuit, magnetic flux judgement and weak magnet ring joint, SPWM inverter, stator current testing circuit and speed detection feedback circuit by vector control operation link, 2/3 translation circuit, alternating current and formed: the speed that is in series with between stator current testing circuit and vector control operation link detects feedback circuit, magnetic flux judgement and weak magnet ring joint are in parallel with the vector control operation link, and alternating current follows control circuit and the SPWM inverter links.The input power supply is through over commutation, filtering, inverter circuit, import motor later on from the conversion of interchange-AC/DC, when motor moved below rated speed, governing system adopted the transform vector controlling schemes, and magnetic flux is judged and weak magnet ring is energy-conservation finishes that to keep the exciting curent component be constant; When motor moves more than rated speed, weaken excitatory component, make machine operation in weak magnetic state, rotating speed increases.
As shown in Figure 2, adopt the speed regulation by constant torque of u/f=c to move downwards from fundamental frequency, fundamental frequency upwards adopts the constant-power speed regulation operation of u/f=c, adopts a raising frequency rate, the not operation of the approximate constant power of up voltage to ceiling voltage.Carry out the frequency converter setting by the motor nameplate parameter, by the program control input converter of lathe PLC, exciting curent by the control motor is a steady state value, according to load size controlling torque current component, thereby reach the torque control purpose of motor, again by the magnetic flux signal feedback that collects on the motor to velocity checking circuits.
Claims (2)
1, the permanent power high-speed electric main shaft of a kind of wideband speed governing comprises casing, main shaft, motor, it is characterized in that the input of motor is serially connected with a RHVC.
2, the permanent power high-speed electric main shaft of wideband speed governing according to claim 1, it is characterized in that described RHVC follows by vector control operation link, 2/3 translation circuit, alternating current that control circuit, magnetic flux are judged and weak magnet ring joint, SPWM inverter, stator current testing circuit and speed detect feedback circuit and forms: between stator current testing circuit and vector control operation link, be in series with speed detection feedback circuit, magnetic flux judgement and weak magnet ring joint are in parallel with the vector control operation link, and alternating current follows control circuit and the SPWM inverter links.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200767791U CN2852527Y (en) | 2005-10-28 | 2005-10-28 | Wide band speed-regulating constant power high-speed electric main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200767791U CN2852527Y (en) | 2005-10-28 | 2005-10-28 | Wide band speed-regulating constant power high-speed electric main shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2852527Y true CN2852527Y (en) | 2006-12-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200767791U Expired - Fee Related CN2852527Y (en) | 2005-10-28 | 2005-10-28 | Wide band speed-regulating constant power high-speed electric main shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2852527Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100495904C (en) * | 2007-05-23 | 2009-06-03 | 南京航空航天大学 | A frequency converter control method and device for principal axis of machine tool |
| CN102647148A (en) * | 2012-04-17 | 2012-08-22 | 中联重科股份有限公司 | Equipment, method and system for lifting variable frequency motor and engineering mechanical equipment |
| CN103628210A (en) * | 2012-08-30 | 2014-03-12 | 绍兴文理学院 | Variable frequency speed regulation system of high-speed electronic sectional warping machine |
| CN111408484A (en) * | 2019-12-25 | 2020-07-14 | 西安水牧环境科技有限公司 | Horizontal spiral discharge centrifuge |
| CN114033376A (en) * | 2021-11-25 | 2022-02-11 | 宝鸡航天动力泵业有限公司 | Coal mine underground direct-drive type high-power fracturing pump unit system and control method thereof |
| CN114362601A (en) * | 2021-12-26 | 2022-04-15 | 何伟斌 | Motor driver, motor assembly, wire winding machine and industrial equipment |
-
2005
- 2005-10-28 CN CNU2005200767791U patent/CN2852527Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100495904C (en) * | 2007-05-23 | 2009-06-03 | 南京航空航天大学 | A frequency converter control method and device for principal axis of machine tool |
| CN102647148A (en) * | 2012-04-17 | 2012-08-22 | 中联重科股份有限公司 | Equipment, method and system for lifting variable frequency motor and engineering mechanical equipment |
| CN103628210A (en) * | 2012-08-30 | 2014-03-12 | 绍兴文理学院 | Variable frequency speed regulation system of high-speed electronic sectional warping machine |
| CN103628210B (en) * | 2012-08-30 | 2016-10-19 | 绍兴文理学院 | A kind of frequency conversion speed-adjusting system of high-velocity electrons sectional warper |
| CN111408484A (en) * | 2019-12-25 | 2020-07-14 | 西安水牧环境科技有限公司 | Horizontal spiral discharge centrifuge |
| CN114033376A (en) * | 2021-11-25 | 2022-02-11 | 宝鸡航天动力泵业有限公司 | Coal mine underground direct-drive type high-power fracturing pump unit system and control method thereof |
| CN114362601A (en) * | 2021-12-26 | 2022-04-15 | 何伟斌 | Motor driver, motor assembly, wire winding machine and industrial equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jiangsu Xinchen High-speed Electricmotor Co., Ltd. Assignor: Liu Sengang Contract fulfillment period: 2008.9.20 to 2015.9.20 Contract record no.: 2008320000207 Denomination of utility model: Wide band speed-regulating constant power high-speed electric main shaft Granted publication date: 20061227 License type: Exclusive license Record date: 20080922 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENCE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.9.20 TO 2015.9.20 Name of requester: JIANGSU XINGCHEN HIGH-SPEED ELECTRIC MACHINE CO., Effective date: 20080922 |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |