CN103066761A - Axial force balancing device and high-speed motor using the same - Google Patents
Axial force balancing device and high-speed motor using the same Download PDFInfo
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- CN103066761A CN103066761A CN2011103209496A CN201110320949A CN103066761A CN 103066761 A CN103066761 A CN 103066761A CN 2011103209496 A CN2011103209496 A CN 2011103209496A CN 201110320949 A CN201110320949 A CN 201110320949A CN 103066761 A CN103066761 A CN 103066761A
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- 230000003137 locomotive effect Effects 0.000 claims description 29
- 238000004891 communication Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 claims description 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000368 destabilizing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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Abstract
The invention provides an axial force balancing device and a high-speed motor using the axial force balancing device. The axial force balancing device comprises a control module, an electromagnet, and a sensor. The sensor is used for measuring force information and transmits the force information to the control module, and the control module controls current intensity of the electromagnet so as to control force of the electromagnet. When the axial force balancing device is in use, the sensor detects the condition of axial pushing force of a main shaft in real time, the control module adjusts coil current of the electromagnet so as to control the force of the electromagnet, and an electromagnet balancing impeller generates the axial pushing force of the main shaft to enable force on a motor bearing to be even and reduce the force of the bearing. Therefore, compared with the prior art. The axial force balancing device has the advantages that the force on the motor bearing is even, vibration of the motor is reduced, the high-speed motor is enabled to run stably, and at the same time, service life of the high-speed motor bearing is prolonged.
Description
Technical field
The invention belongs to the technical field of motor, relate in particular to a kind of axial thrust balancing devices and use its high-speed electric expreess locomotive.
Background technology
Blower speed is higher, the step-up gear driving that traditional air blast generally adopts motor and is attached thereto.For improving the efficient of air blast, reduce energy loss, motor direct-connected formula air blast begins to be used.Motor direct-connected formula air blast adopts high-speed electric expreess locomotive directly to connect impeller, and it has saved the systems such as step-up gear, shaft coupling, and this mode has improved efficient, has promoted processing performance and the reliability of operation of product.But, because impeller directly is connected on the main shaft of high-speed electric expreess locomotive, can produce with axial thrust electric machine main shaft during impeller work, and axial thrust changes with the variation of wind speed, and for powerful blower fan, axial thrust can reach 5000-6000N, the axial thrust that changes acts on the bearing of high-speed electric expreess locomotive by electric machine main shaft, bring destabilizing factor for the operation of high-speed electric expreess locomotive, the vibration of expanded motor system, the useful life that also can reduce the high-speed electric expreess locomotive bearing simultaneously.
Summary of the invention
The object of the present invention is to provide a kind of axial thrust balancing devices, it can overcome defects, make on the motor bearings stressed evenly, reduce the vibration of motor.
Another object of the present invention is to provide a kind of high-speed electric expreess locomotive, its shaft strength is even, vibrate little, stable, the useful life of also having improved the high-speed electric expreess locomotive bearing.
For achieving the above object, the present invention is by the following technical solutions:
A kind of axial thrust balancing devices, it comprises control module, electromagnet and transducer, described transducer be used for to be measured and to be subjected to force information, and gives described control module with stressed communication, and the size of current of controlling described electromagnet by described control module is controlled the power of electromagnet.
Preferably, above-mentioned control module, it comprises controller, difference engine and the power amplifier that connects successively.
Preferably, above-mentioned power amplifier is two, and is arranged in parallel.
A kind of high-speed electric expreess locomotive, it comprises main shaft, housing unit, stator, rotor and bearing assembly, described rotor and stator sleeve are located on the described main shaft, described bearing assembly is located between described housing unit and main shaft, wherein: it also further includes above-mentioned axial thrust balancing devices, described transducer is located at the non-output of described main shaft, described electromagnet is located in the described housing unit, the described main shaft of described sensor measurement be subjected to force information, by described control module, power to described electromagnet is controlled, and makes the force retaining on the described bearing assembly stable.
Preferably, above-mentioned high-speed electric expreess locomotive, it also further includes black box, and described housing unit comprises shell, left electric motor end cap and right electric motor end cap, and described left and right sides electric motor end cap is located at respectively the left and right sides of described shell, and links to each other with described shell; Described bearing assembly comprises left bearing and right bearing, and described left bearing is located between described left electric motor end cap and described main shaft, and described right bearing is located between described right electric motor end cap and described main shaft; Described black box is located between described left electric motor end cap and main shaft, and described black box is positioned at the right side of described left bearing, and the gap that makes described black box, left electric motor end cap, right bearing, rotor and stator is the vacuum space.
Preferably, above-mentioned electromagnet is two, and first electromagnet is located on the described left electric motor end cap inwall; Second electromagnet is located on the inwall of described right electric motor end cap, and described two electromagnet all are positioned at the vacuum space.
Preferably, above-mentioned bearing assembly also further includes the right bearing end cap, and described right bearing end cap is located at the right side of described right bearing, links to each other with described right electric motor end cap; Described electromagnet is located on the inwall of described right bearing end cap.
Preferably, between above-mentioned right electric motor end cap and described main shaft, also be provided with black box, described black box is positioned at the left side of described right bearing, make between described right bearing end cap and right bearing, be formed with the vacuum space, described electromagnet is located on the inwall of described right bearing end cap.
Preferably, above-mentioned bearing assembly also further includes the right bearing end cap, described high-speed electric expreess locomotive also further includes regulates bearing and adjustment seat, described regulating shaft bearing sleeve is located on the described main shaft, described adjustment seat is set on the described adjusting bearing, and be fastened in the described right bearing end cap, described transducer is positioned between described adjustment seat and described right bearing end cap; Described two electromagnet, one of them is located on the inwall of described right electric motor end cap, and another is located on the inwall of described right bearing end cap.
Preferably, between described right electric motor end cap and described main shaft, also be provided with black box, described black box is positioned at the left side of described right bearing.
After adopting technique scheme, the present invention mainly has following beneficial effect:
1, transducer detects the axial thrust situation of main shaft in real time, thereby control module is adjusted the power of magnet spool electric current control electromagnet, the main shaft axial thrust that the electromagnetic force equilibrium impeller produces, make on the motor bearings stressed evenly and reduce the stressed of bearing;
2, adopt single stator and double-rotor pattern, stator is the iron-core-free structure, and rotor is positioned at the stator both sides, makes motor bearings stressed even, has reduced the vibration of motor, makes the operation of high-speed electric expreess locomotive more stable;
3, guarantee the stability that high-speed electric expreess locomotive moves the useful life of Effective Raise bearing, improves the useful life of motor, reduces the maintenance cost of the blower fan that links to each other with motor.
4, establish adjusting bearing and adjustment seat between transducer and axle, make the responsive to axial force of axle on adjustment seat, adjustment seat is connected with transducer again, has improved the life-span of transducer.
Description of drawings
Fig. 1 is the fundamental diagram of axial thrust balancing devices of the present invention;
Fig. 2 is the structural representation of high-speed electric expreess locomotive embodiment one of the present invention;
Fig. 3 is the structural representation of high-speed electric expreess locomotive embodiment two of the present invention;
Fig. 4 is the structural representation of high-speed electric expreess locomotive embodiment three of the present invention;
Fig. 5 is the structural representation of high-speed electric expreess locomotive embodiment four of the present invention;
Fig. 6 is the structural representation of high-speed electric expreess locomotive embodiment five of the present invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
With reference to shown in Figure 1, the invention provides a kind of axial thrust balancing devices 1, it comprises control module 11, transducer 12 and electromagnet 13, wherein:
Control module 11, it comprises controller 111, difference engine 112 and the power amplifier 113 that connects successively.
In the present embodiment, power amplifier 113 is two, and is arranged in parallel.
The present invention in use, transducer 12 detects the axial thrust situation of main shaft in real time, thereby control module 11 is adjusted the power of the coil current control electromagnet 13 of electromagnet 13, the main shaft axial thrust that the electromagnetic force equilibrium impeller produces, make on the motor bearings stressed evenly and reduce the stressed of bearing.
Embodiment one
With reference to shown in Figure 2, the invention also discloses a kind of high-speed electric expreess locomotive, it comprises main shaft 2, housing unit 3, stator 4, rotor 5, bearing assembly 6 and black box, wherein:
During use, impeller assembly A directly is connected on the main shaft 2, detect in real time the axial thrust situation of main shaft 2 by transducer 12, thereby control module 11 is adjusted the power of the coil current control electromagnet 13 of electromagnet 13, the main shaft axial thrust that electromagnetic force equilibrium impeller assembly A produces, make on the motor bearings assembly 6 stressed evenly and reduce the stressed of bearing assembly 6.In addition, the setting of vacuum space, the resistance when having reduced work.
Embodiment two:
With reference to shown in Figure 3, to compare with embodiment one, its difference is:
Embodiment three:
With reference to shown in Figure 4, to compare with embodiment two, its difference is:
2 on right electric motor end cap 32 and main shaft, also be provided with a black box 72, sealing assembly 72 is positioned at the left side of right bearing 62, make 62 of right bearing end cap 63 and right bearings, be formed with the vacuum space, the setting of black box 72 has fully guaranteed the vacuum degree of vacuum space, it has reduced working resistance, better guarantees carrying out smoothly of work.
Embodiment four:
With reference to shown in Figure 5, to compare with embodiment three, its difference is:
It also further includes adjusting part 8, and described adjusting part 8 comprises regulates bearing 81 and adjustment seat 82, regulates bearing 81 and is set on the main shaft 2, and adjustment seat 82 is set in regulates on the bearing 81, and is fastened in the right bearing end cap 63.
Two electromagnet 131,132, one of them electromagnet 131 is located on the inwall of right electric motor end cap 32, and another electromagnet 132 is located on the inwall of right bearing end cap 63.And these two electromagnet 131, the 132nd are installed in outside the vacuum space.
During use, the setting of adjusting part 8 makes the axial force of main shaft 2 when transmission, arrives transducer 12 by the transmission of regulating bearing 81 and adjustment seat 82, can effectively protect transducer 12, has improved the life-span of transducer 12.
Embodiment five:
With reference to shown in Figure 6, to compare with embodiment four, its difference is;
It does not arrange black box 71,72, and in the present embodiment namely, high-speed electric expreess locomotive of the present invention does not vacuumize.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. axial thrust balancing devices, it is characterized in that: it comprises control module, electromagnet and transducer, described transducer is used for measurement and is subjected to force information, and give described control module with stressed communication, the size of current of controlling described electromagnet by described control module is controlled the power of electromagnet.
2. axial thrust balancing devices as claimed in claim 1 is characterized in that: described control module, it comprises controller, difference engine and the power amplifier that connects successively.
3. axial thrust balancing devices as claimed in claim 2, it is characterized in that: described power amplifier is two, and is arranged in parallel.
4. high-speed electric expreess locomotive, it comprises main shaft, housing unit, stator, rotor and bearing assembly, described rotor and stator sleeve are located on the described main shaft, described bearing assembly is located between described housing unit and main shaft, it is characterized in that: it also further includes the arbitrary described axial thrust balancing devices of claim 1～3, described transducer is located at the non-output of described main shaft, described electromagnet is located in the described housing unit, the described main shaft of described sensor measurement be subjected to force information, by described control module, power to described electromagnet is controlled, and makes the force retaining on the described bearing assembly stable.
5. high-speed electric expreess locomotive as claimed in claim 4, it is characterized in that: it also further includes black box, described housing unit comprises shell, left electric motor end cap and right electric motor end cap, and described left and right sides electric motor end cap is located at respectively the left and right sides of described shell, and links to each other with described shell; Described bearing assembly comprises left bearing and right bearing, and described left bearing is located between described left electric motor end cap and described main shaft, and described right bearing is located between described right electric motor end cap and described main shaft; Described black box is located between described left electric motor end cap and main shaft, and described black box is positioned at the right side of described left bearing, and the gap that makes described black box, left electric motor end cap, right bearing, rotor and stator is the vacuum space.
6. high-speed electric expreess locomotive as claimed in claim 5, it is characterized in that: described electromagnet is two, first electromagnet is located on the described left electric motor end cap inwall; Second electromagnet is located on the inwall of described right electric motor end cap, and described two electromagnet all are positioned at the vacuum space.
7. high-speed electric expreess locomotive as claimed in claim 5, it is characterized in that: described bearing assembly also further includes the right bearing end cap, and described right bearing end cap is located at the right side of described right bearing, links to each other with described right electric motor end cap; Described electromagnet is located on the inwall of described right bearing end cap.
8. high-speed electric expreess locomotive as claimed in claim 7, it is characterized in that: between described right electric motor end cap and described main shaft, also be provided with black box, described black box is positioned at the left side of described right bearing, make between described right bearing end cap and right bearing, be formed with the vacuum space, described electromagnet is located on the inwall of described right bearing end cap.
9. high-speed electric expreess locomotive as claimed in claim 5, it is characterized in that: described bearing assembly also further includes the right bearing end cap, described high-speed electric expreess locomotive also further includes regulates bearing and adjustment seat, described regulating shaft bearing sleeve is located on the described main shaft, described adjustment seat is set on the described adjusting bearing, and be fastened in the described right bearing end cap, described transducer is positioned between described adjustment seat and described right bearing end cap; Described two electromagnet, one of them is located on the inwall of described right electric motor end cap, and another is located on the inwall of described right bearing end cap.
10. high-speed electric expreess locomotive as claimed in claim 9, it is characterized in that: between described right electric motor end cap and described main shaft, also be provided with black box, described black box is positioned at the left side of described right bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110320949.6A CN103066761B (en) | 2011-10-20 | 2011-10-20 | A kind of axial thrust balancing devices and apply its high-speed electric expreess locomotive |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110320949.6A CN103066761B (en) | 2011-10-20 | 2011-10-20 | A kind of axial thrust balancing devices and apply its high-speed electric expreess locomotive |
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| CN103066761A true CN103066761A (en) | 2013-04-24 |
| CN103066761B CN103066761B (en) | 2017-08-01 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103560610A (en) * | 2013-11-08 | 2014-02-05 | 贵州凯敏博机电科技有限公司 | Improved structure of motor |
| CN104579030A (en) * | 2015-01-27 | 2015-04-29 | 大连冠力电机科技有限公司 | Control method for adjusting axial force of permanent magnet disc-type motor |
| CN105517261A (en) * | 2016-02-05 | 2016-04-20 | 上海顿格电子贸易有限公司 | Control system of magnetic suspension lamp |
| CN105680616A (en) * | 2016-03-02 | 2016-06-15 | 河北佐佑电子科技有限公司 | Magnetic deviation type dynamic balance booster |
| CN105680603A (en) * | 2016-03-02 | 2016-06-15 | 河北佐佑电子科技有限公司 | Intelligent and power-control magnetic deviation type energy-saving motor |
| CN110849518A (en) * | 2019-10-14 | 2020-02-28 | 中国北方发动机研究所(天津) | Axial force electromagnetic balancing device and dynamometer device |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103560610A (en) * | 2013-11-08 | 2014-02-05 | 贵州凯敏博机电科技有限公司 | Improved structure of motor |
| CN104579030A (en) * | 2015-01-27 | 2015-04-29 | 大连冠力电机科技有限公司 | Control method for adjusting axial force of permanent magnet disc-type motor |
| CN105517261A (en) * | 2016-02-05 | 2016-04-20 | 上海顿格电子贸易有限公司 | Control system of magnetic suspension lamp |
| CN105517261B (en) * | 2016-02-05 | 2018-03-06 | 上海顿格电子贸易有限公司 | Control system of magnetic suspension lamp |
| CN105680616A (en) * | 2016-03-02 | 2016-06-15 | 河北佐佑电子科技有限公司 | Magnetic deviation type dynamic balance booster |
| CN105680603A (en) * | 2016-03-02 | 2016-06-15 | 河北佐佑电子科技有限公司 | Intelligent and power-control magnetic deviation type energy-saving motor |
| CN105680616B (en) * | 2016-03-02 | 2018-04-06 | 河北佐佑电子科技有限公司 | Magnetic deflection formula dynamic balancing booster |
| CN105680603B (en) * | 2016-03-02 | 2019-11-12 | 河北佐佑电子科技有限公司 | Intelligent electric-controlled magnetic deflection formula motor |
| CN110849518A (en) * | 2019-10-14 | 2020-02-28 | 中国北方发动机研究所(天津) | Axial force electromagnetic balancing device and dynamometer device |
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| CN103066761B (en) | 2017-08-01 |
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Effective date of registration: 20181017 Address after: 310000 201, room 81, 25 building, Gongshu District new town, Gongshu District, Hangzhou. Patentee after: Fang Mandi Address before: 518000 Guangdong, Shenzhen, Nanshan District, Xili Li Xian Avenue, leaving the Sant hole Sanger technology 2 factory floor 102 Patentee before: Shenzhen Feineng Power Co., Ltd. |
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